2013年11月29日星期五

Mining and construction principle advantages of using shaker

The advantages of using the principles and structure of the mine shaker with . Mine shaker efficient new screening equipment , mining shaker dual vibration motor can be used to

automate the pipeline operation coal screening machine can be realized on powdery , granular materials screening and classification.

Mine shaker features:

1 , durable, long life, high efficiency.

2 , screen replacement convenient, unique design .

3 , easy maintenance , Linear vibrating screen simple structure , fully enclosed structure , no dust , stable and reliable.

4, with a high efficiency of processing power.

5 , to fully support the mother fine mesh net, thereby reducing the use of consumables fine mesh , fine mesh extended life, reduce the cost of production .

6 , screen machine compact design and easy assembly, a person can operate the screening machine .

Mine shaker three major characteristics and eight principles

   First, mine shaker , also known as self-centering sieve. There exciter , screen box , suspension, damping springs, disc motors.


   Second, mine shaker works: vibrating screen supplier self-centering sieve structure is characterized by the drive shaft and bearing with place car out eccentric journal . Shaker by the motor so that

the work by the exciter belt, mine shaker is exciter makes use of a block with eccentric vibration sieve box

Can work with a large amplitude, and need not be precisely balanced.


  Third, an eccentric portion vibration screen shaker mine can automatically adjust the position of the drive shaft , so that power is in equilibrium , and the entire space of the drive shaft to

maintain a constant position . Suspension hanging in the screen box hanging on the rack , hitch eliminate vibration damping spring upper end . Which can be extended electric

Machine life and improve screening efficiency materials.

How to feeder noise

Feeder sources of noise :
 1 , feeder beams, plates and other steel components of elastic vibration .
 2 , vibration motor rotation unbalance section.

 3 , the relative movement China Vibrating Screen between the body of the relative movement member .

 4, when a trough -order elastic vibration exciter frequency similar to the natural frequency of the vibration and noise caused strong trough elastomers.

How NR:

 1 , on the feeding trough beams vibrating screen manufacturers and plates using suitable elastic stiffness to reduce the acoustic radiation caused by vibration .

 2, there is a small, high-precision bearings , thereby slowing the impact between inner and outer rings and the rolling elements .

 3 , the use of rubber and other non-metallic materials , such as rubber composite spring and flexible couplings , etc. in order to reduce the direct impact of steel parts , and the use of sound absorption method to reduce noise.

Weighfeeder selection guide

      Weighfeeder become an indispensable tool in many ways , part of the optional parameters will know when a certain expertise to understand the user may choose , but may not be very comprehensive, but for people who do not understand the expertise , I do not know how to buy has become a major problem, Here we give some detailed guidance .
      Optional weighfeeder coal vibrating screen must understand their associated indexes , index options generally have the greatest volume of feed and the adjustment range , the material name , material largest particles , moisture content of materials , material temperature, average bulk density, an electric control container several dosing machines.
   1, for the material name , the general feeder will be given the choice , a user can choose according to their own purposes.
  2, the maximum volume of feed and the adjustment range is a very important indicator for the standardization of operations and pipeline operations can choose a large amount of feed ,Mining vibrating screen  while the adjustment range can be appropriately smaller, and some of the requirements of the fine does not require the customer can choose the speed point adjustment range products .
  3, the maximum particulate material according to their material properties can be selected , generally does not exceed the specified maximum material particles can be.
  4 , according to the maximum moisture content of materials can be determined quantitatively moisture .
  5 , according to the temperature of the material in contact with the material to select materials , materials for high temperature heat-resistant material has the best selection of related products.
  6 , the size of the average bulk density can be determined based on unit density water content and materials boring , the choice between the two should be proportional .
  7 , as installed on the cabinet quantitatively how much can be determined based on the degree of usage and scale feeder .

2013年11月25日星期一

Crusher market uncertainties exist


 Soon to be over in 2011 , China 's construction machinery industry showed a high to low development trend ; due this year for the real estate industry to take the national

macro-control , especially since vibrating screen supplier the third quarter, the high-speed rail investment slowdown , real estate, regulation , monetary tightening , etc. impact

Sales in the second quarter after the sharp drop in China 's construction machinery industry . Faced coal screening machine with the current situation, we need objective and rational analysis .

Construction machinery industry since 2007 short span of five years, has experienced two rounds of ups and downs , there is the impact of the global financial crisis and China's

macroeconomic policy changes and deeper after the Chinese economy, after nearly three decades of sustained high growth , China 's economic structure China's economic growth

Long way to adjust its internal requirements , which will have long-term impact on the whole construction machinery industry .

Factors affecting the crusher crusher from the entire market, there are many such as : the price factor , the price of steel prices , the price of ore , building materials , and

even house prices will affect the crusher industry , thereby affecting the crusher offer. For now, broken

Of course, the price crusher is mainly affected by the steel , market dynamics and other reasons , according to analysts , and now the steel market equities is serious, the

reality of the market mentality comparison , these two points around the crusher price , as follows :

An unstable steel market

Steel prices rebound, plus plenty of early market funds , directly pushed up futures prices of steel. Under the influence of money effect , the admission of new funds has

increased the market's rally is expected to make the steel market, the trend of the stock market currently growing , so

Changes led directly to changes in steel trading operation mode .

Second, the lack of confidence in the market

1 , this year's wave of market is mainly due to the low market purchases of small traders , focused on the release of energy procurement , steel mills shipped homeopathic

control , causing stock market specifications , and then pushed the benchmark price of the entire market . In the absence of significant changes in the major supply and demand

side , so this

Wave of market expectations mainly rely on the market to push .

2 , after last year's market test, the mentality of the majority of traders and mills tend reality , the concept of reasonable profits popular, so this year a large stockpile of

market traders less, to explore the potential market demand , timely service, earn traders more than a reasonable profit ,

A little of this and more , reflecting the maturity of the current market sentiment , and then to violent fluctuations in the market price of inhibition , causing minor

fluctuations in the market price highs .

Steel industry trend will probably change the price structure mining crusher equipment : With the sharp rise in prices of various steel , volume shrinking market , the trend of

price movements and outlook uncertain , steel prices and the continued high level of opinion bearish iron

Stone price formation is a contradiction . Late steel prices , the short-term risk is not great, but if the procurement needs of downstream users still can not effectively

released, the possibility of rising steel prices will not be great .

From the mining machinery industry sales situation, this crusher sales significantly downward trend , one of the most important factors affecting the price of steel by the

crusher prices will have some growth. Of course, the impact crusher pricing factors are changing , the need to buy broken

Equipment in terms of consulting businesses get more price quote information is necessary .

Crusher equipment has to get rid of the low-end image

Increased in recent years , crushers, shredders, crushers and other large mining equipment export volume , contributed greatly enhance the level of China's mining machinery

manufacturing , many Chinese -made mining China Vibrating Screen equipment brands in the international market has been welcomed and recognition , so we think

: Crusher equipment has to get rid of the low end of the original image into a new era of development , vibrating screen manufacturers this is our comprehensive understanding of mining equipment industry in

recent years, a conclusion derived from the development of the situation .

1 , and further integration with the international market , technology and resources more liquid

Many crusher enterprises to actively explore the scope of business to achieve a high degree of integration with the international market . Cutting-edge information technology ,

high-tech talent, as well as large-scale high-quality resources are introduced into the country , broaden the horizons of domestic enterprises , the formation of a number of

competitive high-end

Manufacturers.

2, the national estimates of independent research and development and innovation

Development of the country 's modernization created a mechanical equipment manufacturing industry vitality , especially in large projects crusher equipment in more demand and

stimulate the development and innovation of enterprises. Country from economic stability and market building normative perspective , encourage enterprises to enter

Line of independent research and development and innovation , has appeared in a large crusher, crusher run high stability, low cost , to fill the shortage of traditional

equipment , on the one hand to meet the needs of the domestic market , it also formed a confrontation with foreign nationality technological competitiveness .

3 , cooperation diversity, promote mutually beneficial and win-win

Many overseas mining equipment companies foresee a huge potential for domestic enterprises to carry out various forms of cooperation , common include: technology investment,

capital investment and brand agency . Under the bilateral cooperation to achieve the technological upgrading of small and medium enterprises, but also enriched the market

The type of product for the overseas business has laid a good foundation.

2013年11月23日星期六

Our wear- parts industry usher sustainable development of

With the vigorous development of mining machinery industry , wear parts industry as an important component of mining machinery crusher , driven by the domestic and foreign

markets , the development China Vibrating Screen of the whole industry is gradually showing a good rise. Rapid economic development , to bring wearable parts industry

New challenges and opportunities. Future crusher wear and accessories will be a steady growth in the demand situation , wear parts industry will also usher in a period of

sustained development.

Although the host vibrating screen manufacturers device wear and accessories in a small parts, but it is like the heart of the crusher , the role can be described as decisive . Host ability to work is good or

bad , the quality of wearable accessories play a very important component . For this reason , with the improvement of product quality , brand wear

Accessories product demand was evident. Since the majority of users of wearable parts reliability, stability have more specific requirements, and to enhance the crusher industry

business management concepts and development concepts , focusing develop their own brand , so the market needs tend to excellent wear-resistant parts

And businesses. With the development of the market , requiring customers to wear and accessories product performance , service life, durability and raised higher and higher

species diversity , has not satisfied the requirements of the general wear parts , steering for high value-added , low-carbon environmental requirements , long life products

.

Although the development of wearable parts industry increased, but compared with the world's industrial powers wear and accessories , there is a wide gap between its main change

is now high wear resistance, high-tech and high value-added proportion of low wear accessories . Today, a lot of wear and accessories manufacturers through a

Series of independent innovation and reform , so that the technical level and reliability of wearable accessories , quality stability has been greatly improved . Wearable parts

production enterprises should grasp opportunities for development , relying on strong radiation foundry industry this platform to a more complete product , excellent quality ,

more advantages

Price to seize the domestic and foreign markets , to further improve the wear parts market share.

Full of broken machinery downstream start developing a vibrant bright

In recent years, in the "five " plan in the third year , the rapid development of China's crushing machinery enterprises , from the protection of housing construction to start

high-speed rail , China's coal vibrating screen crushing machinery market is always full of vitality , with the continuous development of China's crushing machinery enterprises , doomed this an

industry will be of smoke , then .

2013 of crushing machinery business , how should develop?


First, corporate diversification


       With the Mining vibrating screen continuous development of the market , our enterprise single crusher manufacturer difficult to market a variety of flowers to survive , in order to move forward

, companies must diversify the only way to have a sustainable competitive edge.

Second, the local competition

       With great efforts to build the western development and Xinjiang , the western region of Xinjiang to become broken machinery industry and new competition , the one who

has mastered these two markets , who will rapid development. 2013 was a year of increased domestic competition , but also the outcome of competition for a year .

Third, the oligarchs show

       With the development of ups and downs in 2012 , China's crushing machinery enterprises have emerged oligarchs , the strong stronger, weaker eliminated. Will become more

apparent in 2013 , leading enterprises will have more market, small businesses will be very difficult . Follow the market development path , and stronger they are each broken

Common development direction machinery enterprises .

Fourth, the development of overseas markets into the mainstream

       For a long time , in the face of overseas markets , Chinese companies have been admitted by . However, with the continuous development of Chinese enterprises , China's

construction machinery has the strength to compete with international giants . Trinity acquired at the beginning of the German giant has revealed the strength of China's

construction machinery . Not

Whether it is going to acquire worth mentioning, or in the overseas construction base worth mentioning, the overseas market , our country will not hand over .

Five fire from the secondary market

       With the transition of economic development , the allocation of social resources will be more rational optimization, used equipment will become the new way of the

survival and development of construction machinery industry 2013 . On the whole , China's excavator market in second-hand refurbished , still in terms of re-manufacturing

business

Infancy, used construction machinery market has not and refurbishment , remanufacturing business interact , but this does not affect the used machinery in the Chinese market

since the fire .

2013年11月21日星期四

Mining vibrating screen for the first time check before five aspects

    Mine shaker After tuning in production, in order to ensure the normal use, you must first run before belt weigh feeder the shaker to make the necessary checks, shaker in operation before the inspection should be prepared in five main areas.
Mining vibrating Vibrating feeder screen for the first time before operation check:
   1, screen frame and base connection block is removed.
   2, the base is fixed properly. Fixing bracket can be used to carry out fixed.
   3, the fine mesh is paved.
   4, the fuselage frame beam ring screws are tightened.
   5, the body is in a horizontal state.

2013年11月20日星期三

Feeder design and production parameters when

  I. Overview
Motor feeder is widely used in electricity, building materials , coal, metallurgy , chemical industry , food industry , used to transport a variety of non-cohesive bulk materials . It is not suitable for handling viscous materials or particle size less than 0.06mm powdery materials.

   Mechanical vibrations screening equipment in many cases be harmful, it affects the machinery and equipment performance and life. On the other hand , also possible to use mechanical vibration . Motor feeder principle is the use of the working parts of mechanical vibration generating periodic motion , which is used to transport materials

.
   Vibrating conveyor Circular vibrating screen many forms , structures differ greatly, the main difference is driven in different ways . Exciter currently used in three ways: the eccentric rod driven ; eccentric inertia -driven and solenoid drivers . Others include the use of hydraulic pneumatic device as a vibrating conveyor drive

Agency, but is seldom used. Benpian is the use of the motor feeder eccentric inertial force driven.
  Second, the operating parameters of the feeder selection
  Feeder operating parameters include the vibration frequency, amplitude , excitation angle , the installation angle. Reasonable choice of operating parameters is important to ensure the normal operation of the machine condition , it is not only to meet the needs of productivity , but also taking into account the machine can withstand dynamic load capacity and consumption

The magnitude of power . Besides transport efficiency is also often closely related with the motion characteristics of the material . So the choice of the operating parameters must also consider the physical properties of the material during transport and dynamic characteristics.
    1 . Mechanical index and throwing index
    Most feeder in the near-resonant conditions of work, materials thrown in a continuous state of motion , generally have high mechanical index . However, considering the level of productivity of the machine , and the conveying distance of the length of the vibrating mass size , to avoid the lack of rigidity and impact material being

Often transported . The mechanical index usually feeder control K = 3 ~ 5, throwing index control Kp = 1.4 ~ 2.5. Transportation brittle materials , the reduction of the material in the course of transmission is too much broken , should adopt a smaller throwing index , or in certain selected under high throwing index

Frequency and smaller amplitude , in order to reduce material and the whereabouts of the tank relative to the impact velocity .
    2 . Excitation angles and mounting angles
    According to the size excitation angle conveyor speed , tank wear and degree of fragmentation of the material requirements and other factors to select , in theory , can depart from the maximum transmission speed of the mechanical index to determine the optimal excitation angle . But in fact many factors affect the transmission speed , the need for full points

Analysis . Motor feeder and generally excitation angle β = 25. ~ 35 . .
    Tank mounting angle is the angle between the horizontal plane ( installation angle ) , the value of the conveying speed of the material influence . Tank mounted down , the feed rate increased significantly. If a = -100 , the conveying speed can be increased about 40% ; α = -15. Can be increased by 75 % or more. However, α values ​​are not

Should be too large, because it not only exacerbate the wear material on the tank , but also by the natural angle of repose of the material limitations . Generally not more than 10. 15 . .
    3 . Frequency and amplitude
    Feeder drive used in different ways, to adapt his range of frequency and amplitude is not the same . To increase the transmission speed , lower frequencies should be used and a larger amplitude. It should be noted that the material falls trough the relative speed and inversely proportional to frequency , so the test

Consider reducing the relative impact velocity material ( for friable material ) should adopt a higher frequency and smaller amplitude.
    The eccentric inertial vibration feeder , due to the eccentric mass and the starting torque limit , the amplitude of 0.5 to 6 , corresponding to a frequency of 12 to 25 Hz , the frequency is too high due to the large dynamic loads often the bearing premature damage.
    4 . Transmission capacity
    Feeder transmission capacity by the width, material thickness , material density and actual average delivery speed decision.
    For different materials, transport of material thickness have different restrictions , such as more than its limit , transmission speed will be greatly reduced. Material thickness and the conveying speed between three cases . Where I is a thin material layer , in this region , the conveying speed with the thickening of the material layer

Rapidly , and soon reached the maximum. Ⅱ area is moderately thick material layer , transmission speed depends mainly on internal friction of the material , and with a slight decrease in the material layer is thicker . Ⅲ area belongs thick layer, in this region , due to breathable material conveying speed decreased significantly reduced .
    Third, the kinetic parameters of the feeder
    Motor feeder axis inertial shakers can generate directional excitation force . Between the two axes of the drive with a gear ratio of l pay connections ensure its rotation in the opposite direction , speed equal. As the two -axis eccentricity of the eccentric mass and the same size , so that the inertial force generated by a

Directions cancel each other , overlap each other in the other direction , the exciting force generated orientation . This force changes periodically , so that a rigid connection with this shaker conveyor trough also be directed periodic vibrations.
    In our study the dynamics of the feeder , the eccentric block is ignored during the rotation unevenness of the vibration parameters of the system , that it is a constant rotational speed . So that you can take it as a mechanical model with a degree of freedom of the system to study . Centrifugal force

Press harmonic changes simplify the calculation process , are close to the actual situation .

The structure of medical screening air screen features large sum

 Medical air screen Features:
1, the whole small size, light weight, stable and no vibration, no noise , sealed performance is good , no dust , high efficiency ;
2 , the housing structure, Belt feeder easy to install , easy to control ;
3, supporting the use of single or multiple , long-term continuous operation , safe and reliable ;
4 , mesh erosion by the cyclone , which automatically clear network ;
5 of caking materials are then broken functionality ;
6 , screen mounted vertically, not weight , long service life .
7 , in the negative half-cycle screening procedures under the state , no dust pollution .
8 , can be Pan feeder used with a variety of mills , wind direction and supporting the use of networks .

Pharmaceutical airflow sieve Features
1 , high efficiency, large output ;
2 , fineness accurate ;
3, the screen does not load , long life ;
4 , to adapt to wide range of fineness ;
5 , closed structure , no dust ;
6 , low noise ;
7 , suitable for continuous operation and low power consumption ;
8 , no oversized mixed-level phenomena ;
9 , easy maintenance .
Medical air screen can be widely used in metallurgy , mining, food, chemical, metal powder and non-metallic industries.

Knowledge related to self-synchronous vibrating feeder

In many cases , the vibration is harmful, but can take advantage of their characteristics meet certain requirements on the production , feeder is an example. Currently there are hundreds of types of vibration machines of different kinds, in the steel vibrating screen supplier industry, the blast furnace trough system for large-scale use of raw materials to the feeder . This article describes the

One kind of feeder to use, as a communication , wrong , please feel free counterparts .
A feeder Classification and working principle
    Feeder oscillating screen at excitation can be divided into : electromagnetic vibration to the Branch machine, vibrating feeder and inertial self-synchronous resonance feeder, although structurally different , they are all from the tank, exciter and damper composition , this paper introduces the use of self-synchronous vibrating feeder relevant knowledge , self-

Synchronous eccentric block feeder motor inertia force generated by the connection of the two axial direction of the offset , and the two direction perpendicular to the axis is superimposed on the connection of the exciting force , is this exciting force materials vibrate.
Two self-synchronous operation mode feeder
    When transporting friable material or powdered materials , often using materials sliding mode, that material is always in contact with the bottom of the tank , the tank each vibration cycle , the material on the slide for some distance , so that the tank continuous vibration at certain frequencies can be material handling to go . But this tank vulnerable

Wear and tear , so no special requirements when transporting crushed material , the use of throwing motion , that is the material continuously forward tank top toss for parabolic motion , and then fall back to bottom , every toss once, some distance ahead . This approach is characterized by wear tank lighter materials

Conveyor speed is higher. Most feeder Saikawa throwing movement.

Vibrating feeder isolation methods and design principles

Vibrating Feeder is a common feeding equipment, widely used in metallurgy , coal, chemical and power industries , it is not only easy maintenance , and low energy consumption. But in crushing and screening plant the feeder design is often the main vibration system design emphasis on isolation system design does not pay enough attention to

, Thus resulting in a larger dynamic load pass basis , making the ground and buildings coal vibrating screen vibrate, in severe cases , the feeder is difficult to put into use .
Isolation Method Feeder
    Isolation is to use so-called feeder low stiffness vibration isolation spring suspension or supporting them to reduce pass -based dynamic load .
    ( A ) a vibration isolation system: vibration and foundation or framework plastid isolation bombs in between
Spring .
    ( 2 ) secondary vibration isolation system : in a further increase an external vibration isolator spring mass and the secondary vibration isolation springs.
    A vibration isolation system is relatively simple, when a vibration isolation system effects can not meet the requirements, using secondary vibration isolation system , need to be further improved if the isolation effect , you can also use three or more times vibration isolation system . But after using multiple vibration isolation system , equipment

The structure is much more complex , the weight also increases.
    Feeder vibration isolation system parameters of the calculation shall meet the following requirements:
    ( A ) the feeder should be good and to be able to meet the needs of practical work isolation effect , that isolation factor should be smaller than a certain allowable values.
    ( 2 ) After loading , feeder amount of subsidence should be less than the allowable value .
    ( 3 ) feeder vibration during operation should not spring from work the body and have an impact and noise.
   Isolation system in feeder work plays an important role , and its direct impact on the design of the feeder is working. According to the design principles of the design of this feeder vibration isolation system safe and reliable, it allows the feeder to pass a building dynamic load significantly reduced. The design method

Dexing Copper Mine and many other applications to be a strong confirmed.

Hydroxypropyl starch electromagnetic vibrating feeder for special applications and effects

Hydroxypropyl starch trough feeder to feed the material in a continuous process of being tossed and follow the parabolic trajectory to jump forward movement , thus giving less wear and tear vibrating screen design trough . Electromagnetic vibrating feeder is widely used in mining, metallurgy, coal, light industry, chemical industry, electric power, machine

Machinery, food and other industries for the massive, granular and powdered materials from storage silo or hopper uniform continuous or quantitatively to go to the affected device .
Hydroxypropyl mining screen starch is white ( colorless ) powder , good mobility , good solubility in water, its solution is colorless and good stability. To acid, alkali stability , Hu temperature lower than the original starch , hot and cold viscosity changes than the original starch stability. With salt, sugar and other groups of the Mixed viscosity

Rang . Etherification , the ice melt stability and transparency are improved. Hydroxypropyl starch according to the characteristics of electromagnetic vibrating feeder for feeding is most appropriate .
Hydroxypropyl starch electromagnetic machine can instantaneously change and hoisting material flow , feeding amount with high accuracy , and can achieve centralized control of production processes and automatic control .
     Trough made ​​of alloy steel plate , suitable conveying high temperature , severe wear and corrosive materials , hydroxypropyl starch feeder by adjusting the excitation force can easily change the feeding amount , the structure can be divided into open and closed , if the transport corrosive materials , and materials

Contact parts adopt stainless steel. Installation can be divided into pedestal and hanging .
Hydroxypropyl starch electromagnetic feeder shipping method utilizes electromagnetic vibration , so this feeder can be most effectively used to bulk powder material from all kinds of materials cut points to give . Electromagnetic feeder is divided into two, one is the electromagnetic drive unit mounted in the rear below the standard chute

Standard type , the other one is mounted on the front top of the electromagnetic drive type top drive .

2013年11月19日星期二

Air screen breakthrough in calcium carbonate industry

 Impurity in the calcium carbonate industry is generally used in air screening machine, generally vertical airflow sifted 1000 120 mesh sieve yield about 2 tons per hour , after

the engineer improvements and high frequency screen upgrades over the years , all over the country to fully absorb light calcium customer recommended screening production has now exceeded 300 tons /

hour , air flow linear vibrating screen sieve powder is mainly used for non-metallic impurity , with a large output characteristics , configuration, pulse dust collector, can achieve environmental

protection , clean working environment effects, Meanwhile gold shock produced by mechanical sieving air screen in terms of kaolin is also very good .

Airflow sieve powder and reclaimed rubber in the application process

 Air screen in the tire and take off to allow regeneration process the application . Powder as viscous , so the powder production process using vibrating screen to complete the

screening process , screening equipment the effect is not good. Commonly used is the flow sorter, can achieve the purpose of cleaning sieve . Look under what powder production process, look at the

flow sorting equipment in which the application .
      Production process: tire cutting machine drawing machine → → → rubber tire crusher crusher Circular vibrating screen magnetic separator → → → airflow Rubber Crusher sorter → Rubber grinding

machine → → Quantitative flow sorter bagging machine
   Airflow sieving machine features:
 Can be used at room temperature, tires , especially the all-steel radial tire 40 to 120 mesh crushed into fine powder and put tire steel wire and nylon fiber Full automatic

separation and recycling.
 production line structure is quite compact , minimal equipment footprint , the production process is simple .
 Device low energy consumption, high cost investment .

Vibrating screens in various industries in the use of

Vibrating screens are from the hopper , vibration chamber , coupling and motor. Indoor oscillation by the eccentric wheel, rubber software , main shaft, bearings and other

components. Adjustable double roller crusher eccentric weight communicated by the motor drive to the spindle centerline , in an unbalanced state of the centrifugal force , so that the material

strength is varied Belt feeder form vortex in the sieve . Adjusting the amplitude of the hammer according to different materials and screen adjustment.

Vibrating screens works

Fundamentals lower ends of the shaft of the vibration motor system installed weight ( unbalanced weight ) , the motor force of the rotational movement is converted to horizontal

, vertical, inclined three dimensional motion ( D motion ) , then this motion to the sieve surface . Changing the phase angle of the upper and lower weight material in the

screen surface can change the direction of movement and trajectory , optimum screening results.



Vibrating Screen Features
1 , high efficiency, compact and durable design , any powder , mucus can be screening .

2 . Changer easy, simple , easy to clean .

3 mesh is not blocked , the powder does not fly, can be up to 600 mesh sieve or 0.02mm.

4 impurities, coarse material discharged automatically , can continuous operation.

5 unique grid design, screen use of time long , rapid screen changing only 3-5 minutes.

6 small size, less space and easy to move .

7 screen machines can reach five, recommended to use three .

Food industry: additives, starch. Edible chemicals, juices, dairy industry and feed industries.

Pharmaceutical industry: pharmaceutical intermediates , medicine .

Chemical industry: resin , paints, pigments, cosmetics industries. Metal , metallurgy , mining : powder metallurgy , construction, kaolin and so on.

Ceramics industry : lead oxide , quartz sand , mud , spray soil particles .

Pollution treatment: industrial wastewater treatment , waste oil , waste disposal , etc.

Characteristic vibration sieve

Vibration sieve is a high precision powder griddle , its low noise , high efficiency, quick changer takes 3-5 minutes , fully enclosed structure , suitable for grain , flour,

mucus and other materials screening filter . Vibration sieve is a vertical motor as vibration source, the motor and lower eccentric weight attached to both ends of the motor 's

rotary motion into vibrating screen design horizontal, vertical, inclined three elementary motions , then this movement is transmitted to the screen surface . Adjust the upper and lower ends of the

phase angle , you can change the screen surface material trajectory.

Motors ) , vibration isolation device ( a set of support spring ) , the base of several parts , including , screen cover and screen frame to vibrate part , the other part of the

non- vibrating portion ,mining screen  in addition, both the base support functions . Vibration sieve screen frame is a major part of the vibration part . Screen frame usually consists of

plates welded together, to undertake its upper and lower ends are a circle, with a lower internal flange ring for fixing the screen assembly and other structures .

Product Features
A small size , light weight, easy to move, the direction of the discharge port can be adjusted , coarse and fine material discharged automatically , can be automated or manual

operation.

(2) screening of high precision , high efficiency, no powder, tablets , mucus class can be used.

3 screen does not block , powder does not fly , the smallest up to 500 mesh sieve ( 28 micron ) filter the smallest up to 5 microns.

4 unique grid design ( picture style ) , screen used for a long time , for network easy , just 3-5 minutes , simple operation , easy to clean .

5 no mechanical movement , maintenance simple , can be single or multi- use , and material contact parts is made ​​of stainless steel ( except for medical use ) .

Applicable industries:
Any kinds of powder industry granules, powders , can be screened within a certain range of mucus .

Labourer Industry: resin powder , pigment, detergent , powder , paint , soda ash, lemon powder , rubber and plastics.

Abrasives, ceramics industry : alumina, quartz sand , mud , spray soil particles .

Food industry : sugar, salt , alkali, monosodium glutamate , milk powder, milk , yeast , fruit juice, soy sauce, vinegar .

Paper industry: coating paint, clay, mud, black and white liquid , liquid , liquid paper , wastewater recycling .

Metallurgical industry: titanium oxide , zinc oxide, magnetic materials, metal powder , welding powder .

Pharmaceutical industry: the powder, the liquid, medicine powder, liquid medicine , Western medicine particles.

Environmental protection: garbage , human and animal urine , waste , food waste , waste water processing.

2013年11月5日星期二

Air screen history of the development

Each device has its own research and development to production unique job functions , air sifter as a professional fine powder screening equipment , a lot of calcium powder

manufacturer is no stranger .
Airflow sifter available mining vibrating screen
 from 1992 has gone through two years of history, in the continuous development and improvement process, get a lot of help and support the use of

manufacturers , R & D airflow sieve purpose is to filter a variety of fine flour sieve difficult . Because powdery material surface area, easy to drift

Float flying, Sand screening machine if not easily over the net with a vibrating sieve , causing environmental pollution, perishable sieve mesh with a scraper with a winnowing machine fineness

imprecise , and high power consumption . Air screen in recent years in the promotion of third-generation and fourth-generation air screen technology research and development

process .
The greatest feature is the air screen large output , high efficiency, non-stick network, do not plug the mesh fineness precise and so on.

2013年11月1日星期五

Coal Screening Machine,Linear Vibrating Screen,Oscillating Screen,Sieving Machine - Zhenyuan Machinery®

Coal Screening Machine,Linear Vibrating Screen,Oscillating Screen,Sieving Machine - Zhenyuan Machinery®

Ultrasonic vibrating screen which causes abnormal

① ultrasonic vibrating screen is not installed correctly , the basic exciter shaft and the shaft is uneven or off-center too ( if connected with a universal coupling , more

prominent ) .

② shaker moving parts and apron feeder chute, hopper and other parts do not move between the card of a foreign body .

③ feeding inequality causes partial load, even without the screen surface while feeding .

④ sieve fixed is not strong or damaged , resulting in secondary vibration .

⑤ different positions of the support spring stiffness disparity or fracture occurred.

⑥ ultrasonic weight feeder vibration sieve and a first natural frequency and resonance frequency of the same .

⑦ exciter assembly is poor, such as the double box-type shaker , shaker vibration direction when the two angles are different. Will cause both sides of the sieve vibration

direction angle inconsistent.

⑧ ultrasonic vibrating screen design is unreasonable, improperly positioned center of gravity , the direction of the exciter force failed to pass the center of gravity , large

deviations .

⑨ in shaker box using two interconnected large vibrating screen , after several run after overhaul prone to unusual circumstances , such as torsional vibration , material

deviation, sieve plates fracture , etc., mainly due to the exciter is 2 is equipped with primary and secondary eccentric shaft composed of two axes and then by two identical

Gear is connected , this structure ensures two axes synchronized with the speed of reverse rotation, so that the two axes of the exciting force superimposed , resulting in a

certain angle with the horizontal exciting force , in fact, the exciting force of the force direction entirely by eccentric eccentric position of the decision, which rely on the

two gears being meshed

To determine the correct position of the correct position of the eccentric . Due to the direction and gear meshing force Centrifugal force causes change, such as two exciter

force direction angle occurs when the ultrasonic vibration sieve torsional vibration occurs . Similarly , when connecting two ends of the exciter shaft flange bolt holes

dislocation,

Also produced similarly to the above case . So, when these cases will occur shaker is not running properly , and one of the torsional vibration sieve harm even worse.

Swing sieve vibrator how best ratio

Oscillator rotating weight on the screen surface can produce planar whirling vibration , and the lower rotating weight you can make produce cone rotary vibration sieve surface ,

the combined effects of the vibration screen screen surface can produce complex rotary -type vibration . Here to introduce the next screen using standard swing weights ratio:
1 If you are using the flange vibration motor , counterweight ratio of 3:1
(2) If it is used in vibration motor flange , counterweight ratio of 4:2
3 If you are using ordinary motor , when the weight ratio of 1:1 is most stable .
Swing sieve with weights proportional not independent , needs and swing angle screen interaction . For better feeding equipment  screening effect , to the proportion of the angle and material

properties of the three unified regulation.
Currently on the market swing and sway sieve sieve has two motors . One is in the flange type vibration motor , the other is on the flange type vibration motor . For some

special industries mainly in the use of materials screening vibration motor flange . Some southern enterprises to adopt the common motor to bring

Move swing sieve work , such a structure is very unstable , the failure rate is high, such a choice is not recommended .

Cleaning sieve works

The aircraft in the material fed from the feed inlet screen cylinder , the playing board by rotating the impact and delivery role, so that the material in the agglomerate material is banana screen broken up, and with the surface of a plate with a circular motion around the cylinder , the centrifugal force under the influence of the material is less than the sieve sift quickly from the lower body from the plane, close to the screen cylinder cleaning brush ready to hang on the sieve to remove material on the tube . Greater than sieve large miscellaneous transportation in playing the role of the board under the direction of exports to the passage of large miscellaneous discharge. Wuhan, central grain depot using shaker model TQLZal80 × 200, this sieve type original common rice, noodle factory in liquidation phase stone feeding machine after the procedure . As the particularity of grain production , in order to achieve satisfactory cleaning effect , in the selection and use of equipment to do the following: ① granary is now equipped with complete sets of equipment production operations are 50t / h, compared to rice production , noodle factory larger and larger impurity grain on the market , the choice of such a sieve type, note that the best choice sieve sieve surface width 1.8m , 1.8m width as the screen type is a double feed, can fully effective use of the width of the screen surface sifting , and 1.5m wide sieve screen surface is a single feed port type , the material layer is concentrated in the middle of the screen surface , the screen surface itself is narrow , plus the problems, the flow can not be meet 50t / h production requirements. ② The sieve -type light impurities removal efficiency is higher, can better meet the production requirements , but be careful collection hopper to promptly clean up , it is worth noting that boot with particular attention to light impurities auger rotates in correct direction , otherwise once the operation reverse , it will cause clogging . ③ The sieve -type small miscellaneous cleaning effect is better, because the screen surface with a self-cleaning ball , clogging . However, the screen on the ropes, and other fibrous valley shall be very sensitive to impurities . If too many of these impurities , cleaning is not timely , it will live in a big mixed paste the screen surface , so that the effective screen management area is reduced , causing some food grain exports flow to large complex , affecting equipment production and cleaning effect . Wuhan, central grain depot in general use, a car will stop after the goods under the clean up once , such impurities for a long time , 20min non-stop on the machine easy clean up once .

Cylinder cleaning sieve characteristics and working principle

 New cylinder cleaning sieve is when food grain storage clean impurity ideal equipment , but also for grain processing, grain and oil processing industry equipment before cleaning , replacement coal production line of different mesh can be cleaned with different grains , in the local climate and environmental conditions open-air work , under load , continuous , stable and reliable way to remove impurities in the grain , used in rice , sorghum , wheat, corn.
   The aircraft in the material apron feeder fed from the feed inlet screen cylinder , the playing board by rotating the impact and delivery role, so that the material in the agglomerate material is broken up, and with the surface of a plate with a circular motion around the cylinder , the centrifugal force under the influence of the material is less than the sieve sift quickly from the lower body from the plane, close to the screen cylinder cleaning brush ready to hang on the sieve to remove material on the tube . Greater than sieve large miscellaneous transportation in playing the role of the board under the direction of exports to the passage of large miscellaneous discharge.