Cement Fineness Sieve Negative Pressure

FSY-150 type cement fineness negative pressure sieve analyzer

I. overview

As with the "test method for fineness of cement – Sieve Method", standard implementation of cement fineness square hole 45um and 80um sieve sieve analysis experiment method, to reduce the impact of human factors in the process of experiments, improve the accuracy of experiment. The product has the advantages of advanced structure, long service life, strong environmental protection performance, high screening speed, high accuracy, good reproduction performance and wide application. It is in the leading position in the world. It is the only specialized instrument that can meet the requirements of the new standard test method of fineness of cement in china.

Two, use

Cement Fineness Negative Pressure Sieve Analyzeris widely used in Cement Fineness Test and cement production control. Powder fineness test in other industries can be used simultaneously. China’s cement monitoring stations, cement plants, coal ash and other units should use the instrument.

FSY-150 Cement Fineness Negative Pressure Sieve Analysis Instrument (Environment-type) is widely applied to cement fineness inspection and cement producing control. It also could be used for powder fineness test in other industry. Cement quality inspection department, cement factory, coal ash department, all need this instrument.

二、technical parameter

1. Sieve analysis test fineness: 80μm

2. Screening and analysis automatic control time 2min (factory setting)

3. Adjustable range of working negative pressure: 0 to -10000pa

4. Measuring accuracy: ±100pa

5. Resolution: 10pa

6. Working environment: temperature 0~50°C humidity <85%RH

7. Nozzle speed: 30 ±2r /min

8. The distance between the nozzle opening and the screen: 2-8mm

9. Add cement sample: 25g

10. Power supply voltage: 220V±10%

11. Power consumption: 600W

12. Working noise ≤75dB

13. Net weight: 40kg

三、Structure principle

The negative pressure sieve analyzer is mainly composed of a box, a sieve base, a vacuum cleaner, a cyclone dust collection device and an intelligent digital display controller. The box is the main structure of the instrument. All parts and components are installed in the box. The sieve base is equipped with synchronous motors, nozzles, hard pipes, etc., and a test sieve and a sieve cover are placed on it. The lower end of the hard tube is connected with the air inlet of the cyclone with a hose, and a small port is connected to the negative pressure controller with a hose. The vacuum cleaner serves as the source of negative pressure. The suction port is connected to the air outlet of the cyclone, and the motor can be steplessly adjusted through the pressure adjusting knob on the panel, so as to change the working negative pressure of the instrument at any time. The cyclone dust collection device is composed of a cyclone tube and a dust collection bottle. The configuration of the cyclone greatly improves the dust collection efficiency, so that 95% of the cement dust falls into the dust collection bottle, thereby reducing the number of dust cleaning operations of the vacuum cleaner. The time is controlled by the program in the controller, so that the instrument can automatically stop after working for 2 minutes (factory setting). After the negative pressure sieve analyzer is started, the vacuum cleaner and the synchronous motor start to work, so that the inside of the sieve holder is kept under negative pressure. The fine cement powder to be tested on the test sieve becomes dynamic under the action of the airflow sprayed from the nozzle. The fine powder with a diameter smaller than the sieve aperture is sucked away through the test sieve under negative pressure suction, while the fine powder with a particle diameter larger than the sieve aperture remains on the test sieve, thus completing the sieving and meeting the requirements of GB1345-91 Test requirements.

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