what is the test sieve?

Monday January-17 2022  16:06:45

Test sieve arIS also called standard sieve, laboratory sieve, sample sieve, sieve analysis, etc.The test sieve is a laboratory apparatus for the classification and detection of particle size of granular materials.

Test sieve structure

Screen surface: The screen surface is the part that is in direct contact with the material. It is a surface with regularly arranged holes of the same shape and size.

Sieve: The sieve and the combination of the screen surface and the screen frame form a sieve: a device for screening the sieve surface in a sieve frame.

Test sieve: A sieve used for particle size analysis of sieved materials in accordance with a test sieve standard specification.

Test sieve screen: a set of test sieves assembled with the upper cover and the receiving tray according to regulations.

Qualified test sieve: A test sieve that has been inspected, identified, and considered to meet the requirements by a designated agency.

Test sieve: A sieve used for particle size analysis of sieve materials according to a test sieve standard specification; there are two types, namely wire woven mesh test sieve and metal orifice test sieve, both test sieves are round or Square, consisting of screen frame and screen surface. In the past, meshes were commonly used to describe sieves, but in recent years, sieve sizes have been used to describe sieves. In international standards and national standards, the number of items has not been raised.

Mesh classification of test sieve

According to the screen material, the test sieve is divided into woven wire mesh test sieve, metal perforated plate test sieve and electrical forming test sieve.

Which areas does the test sieve apply to?

Test sieve is widely used in scientific research and production departments, laboratories and quality inspection rooms of metallurgy, chemical industry, medicine, building materials, geology, national defense and other industries. It is used for vibrating screening, filtration and standard test for the granular structure of granular and powdery materials, the content of liquid solids and the amount of impurities.

How does the test sieve works?

The test sieve uses the vertical vibration motor as the vibration source of the whole machine,vibration of the upper vibrating plate is driven by a vibration motor,and the vibration is transmitted through the vibrating plate to the screen frame placed on the upper part of the vibrating plate,then the material particles smaller than the sieve mesh aperture are screened to the lower sieve frame by the sieve frame which needs to test the mesh number.After such screening, only the same granularity of material is left in each test screen to achieve the separation of different granularity and make sure the granularity composition of the material.The material in the screen frame can be filtered, graded and screened effectively.

 

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Kon Leung, Ph.D.

Staff Simulation Engineer at BISSELL Homecare, Inc.