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.

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.

What are the advantages shaker

Liquid slag separation: vibration screening function of the different types of slurry quickly remove insoluble solids and continuous slag .
Screening : can the particle size of Circular vibrating screen the powder into particles of different segments. Single Lei Cheng vibratory screening machine can be equipped with screens to 5 layers can

be selected 2-6 consecutive points and high frequency screen control the smaller grain size range .
Impurity : High performance in high-traffic vibration sieve machine processing, can quickly remove a large percentage of low- particles or small particles.
Whether crusher, ball mill, sand making machine or vibrating screen and other processing equipment , equipment should attach importance to daily maintenance . Not only able to

detect equipment problems promptly repaired , but also to extend the life of the equipment is more conducive to the production .