2013年9月10日星期二

In the pharmaceutical process applications which are used in screening machine

     Dedicated shaker pharmaceutical industry plays in the powder Circular vibrating screenscreening material reached the required particle size effect, for the pharmaceutical manufacturing industry is a rather special , all about the powder vibrating sifter is also relevant in the pharmacopoeia requirements .
Screening : a sieve particle size of the material particle size graded according to unit operations .
Raw material particle size after crushing its uneven require Sand screening machine only after mixing . In pharmaceutical production process, screening tools used a standard drug screening . Our drug screening based on Taylor standards and the " Chinese Pharmacopoeia" standard steel. Tyler standard length per inch with a

An aperture with a diameter of the sum of the number of ( approximate number ) plus unit mesh sieve as the name , such as every inch lengths on 100 single aperture diameter of a single called 100 mesh sieve . " Chinese Pharmacopoeia" provides for a total of nine sieve , sieve, sieve diameter of the largest on the 1st , the 9th sieve

The smallest diameter of the sieve .
Pharmaceutical industry screening machinery used in reference to the aperture is " Chinese Pharmacopoeia" made ??. Common screening machinery is circular vibrating sifter , electromagnetic vibrating sifter . Circular vibratory screening machine is mounted on the motor shaft two unbalanced heavy hammer, hammer the upper sieve

A horizontal circular motion , the lower weight makes sand net vertical motion occurs , thereby synthesizing three-dimensional transport vibration sieve . Material falling into the center of the screen , after screening , the screen above the coarse material from the outlet , screening out material from the lower part of the outlet line . Its diameter is generally pseudo screen

0.4 to 0.5 meters , each screen can be made ??of one to five .
Electromagnetic vibration sifter by the electromagnet , screen, frame, spring contacts and other components , the use of higher frequency and smaller amplitude vibration . Sieve fitted with rails , slide mounted on the carriage , on the border of the sieve supported electromagnetic vibration device, the screen slides back and forth along the motion .

Adding high-end materials from the sieve , coarse material from the screen at the next port discharge , the Department of material discharged from the screen below . High frequency machine , 3000 ~ 3600 times per minute , a small amplitude is only 0.5 to 1 , can be used in the screening of sticky medicine , the screening efficiency .

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