Airflow Jet Sieve Analyzer Air Dynamic Screening Instrument Pneumatic Jet Sieve Air Jet Sieve Gas Flow Sieving Machine

Airflow Jet Sieve Analyzer Air Dynamic Screening Instrument Pneumatic Jet Sieve Air Jet Sieve Gas Flow Sieving Machine

Introduction

The LR-D200 air jet sieve utilizes air flow to carry the samples for sieving. The air jet generated by the air flow is beneficial for dispersing the agglomerated particles of the samples, and it can also effectively clean the sieve holes. The instrument employs negative pressure air jet technology, which can effectively separate extremely fine powders. It has a rapid and effective sieving effect for powders with strong agglomeration, powders with adhesion, and powders with static electricity. The most distinctive feature of the air jet sieving instrument is its ability to quickly and effectively separate fine powders with strong agglomeration.

When the negative pressure airflow passes through a slotted rotating nozzle (placed on the bottom surface of the standard sieve), the negative pressure generated by the airflow through the vortex air passage forms a huge concentrated airflow at the nozzle. The airflow is sprayed onto the bottom surface of the standard sieve mesh containing the powder sample, then mixes with the air and disperses. The strongly agglomerated powder that collides with the transparent sieve cover is again impacted and dispersed. The suction force of the negative pressure airflow pulls the powder sample towards the sieve holes. The samples smaller than the sieve holes are carried through the sieve holes by the airflow and collected in the sample collector. The coarse particles remain on the sieve, thus achieving the sieving of the samples.

The air jet sieving instrument usually uses powder samples with particle sizes less than 75 micrometers. The circulation of negative pressure airflow perfectly solves the problem of powder particles blocking the sieve holes. When the jet air flows through the sieve holes from the bottom of the sieve, it will lift the particles that have blocked the sieve holes and reposition them, allowing the particles near the sieve to be sieved again.

The working principle of the air jet sieve (air flow screening instrument)

The air jet sieve operates based on the principle that air serves as the carrier and the negative pressure airflow provides the kinetic energy. The air flow passing through the nozzle mixes with the materials. Due to the negative pressure effect, a mixed airflow of the sample is formed within the standard sieve and is sprayed onto the sieve mesh, thereby achieving the purpose of rapid and accurate sieving.

The finer the powder, the more likely it is to form lumps and agglomerate. As a result, the sample is particularly prone to blocking the sieve holes. Ordinary mechanical sieving cannot effectively solve such problems.

Product features

1. The unique nozzle and air flow channel design enables the air and the sample to be fully mixed, and then they impact the transparent sieve cover, dispersing the agglomeration of the powder.

2. Imported microcrystalline cellulose standard certified model

3. The main unit is equipped with a micro printer, which can print the sieve test report and sieve test data (optional)

4. The main unit has an RS232 communication interface, which can be connected to the electronic scale (optional)

5. This is particularly significant for the sieve separation of fine powders that are prone to agglomeration, powders that are prone to static electricity, and those with strong adhesion

6. Integrated automatic pressure transmitter, which can monitor the environmental pressure in the sieve separation chamber in real time, providing a stable sieve separation environment

7. The 7-inch color LCD display is used for all-round control of the instrument. The sieve separation setting time, countdown, real-time pressure display, sieve separation results, etc. are all clear at a glance

8. The pressure adjustment device adopts a unique body-integrated design to ensure the stability of the pressure value

9. The instrument is designed with an automatic calculation function, which can automatically calculate the sieve separation data and give the percentage of the sieve top and the percentage of the sieve bottom based on the calculation results.

10. The sieve separation time can be freely set, and the pressure can be adjusted arbitrarily

11. It is suitable for the particle size analysis of dry materials, with high sieve separation accuracy, low noise, and no environmental pollution

12. Automatic cleaning of the sieve screen function, unique OPEN MESH function (optional), can separate and sieve particles with similar sieve hole sizes, thus ensuring that the powder particles smaller than the sieve hole can be fully sieved during the sieve separation process

13. The unique 360-degree rotating nozzle design enables the sieve separation to achieve maximum efficiency

14. The sieve separation technology using the air jet principle can reduce the agglomeration of small particle samples

15. It has high reproducibility and comparability

16. The sample collector has a collection rate of 99.9%

17. The instrument design conforms to the "Air Jet Sieving Method" for "Particle Size and Particle Size Distribution Measurement" in Part 4 of the Chinese Pharmacopoeia 2020 Edition

18. The sieve separation lower limit with the acoustic ultrasonic system can reach 5 microns

Airflow Jet Sieve Analyzer Air Dynamic Screening Instrument Pneumatic Jet Sieve Air Jet Sieve Gas Flow Sieving Machine

Technical Specification