Cement fineness negative pressure sieve analyzer

FYS-150B modelCement fineness negative pressure sieve analyzerThis instrument is tested according to the standard GB1345-91 (Method for Testing Cement Fineness -80um Sieve Analysis Method) and is used in laboratories and cement research institutions.

Main technical parameters:

1. Sieve analysis test fineness: 0.08mm, 0.045mm
2. Working negative pressure: -4000Pa-6000Pa
3. Spray nozzle speed: 30 ± 2rpm
4. Distance between nozzle and sieve: 2-8mm
5. Cement test weight: 25g
6. Voltage: 220V
7. Power: 800W

working principle

FYS-150 modelCement fineness negative pressure sieve analyzerWhen using air flow as the power medium for screening, the entire system maintains a negative pressure state. The fine powder material to be tested in the sieve is in a fluid state under the action of the air flow sprayed by the rotating jet nozzle, and moves together with the air flow. Fine particles with a particle size smaller than the sieve aperture are driven by the air flow to be extracted through the sieve, while coarse particles with a particle size larger than the sieve aperture remain in the sieve to achieve the purpose of screening. If a small cyclone dust collector is used in the screening system, fine particles passing through the sieve can be collected from the airflow with a collection rate of over 90%, thereby reducing the frequency of dust cleaning by the vacuum cleaner.

makeInstructions:

(1) Place the instrument on a level ground and open the rear door to check if all components are installed properly.
(2) Weigh 25g of cement sample, pour it into the sample sieve and cover it with the sieve cover. Then start the instrument and wait for the machine to stop before removing the sample sieve. Pour the remaining material into the balance and weigh it to obtain the sieve analysis result.
(3) During operation, the working negative pressure should be adjusted within the range of -4000~-6000Pa. The instrument automatically stops within 2 minutes
(4) After each use, gently clean both sides of the test sieve with a brush, and place the sieve in front of the light. Check the sieve holes and store the test sieve in a dry container or plastic bag. When the test sieve is blocked, it can be placed upside down on the sieve seat, covered with a sieve cover and sucked back, and then cleaned with a brush. If the sieve is severely blocked, it can be soaked in water for a period of time before brushing.
(5) If it is found that the cement powder in the dust collection bottle is almost full, the dust collection bottle should be removed from the cyclone tube, emptied, and then reinstalled.