Wuhan University of Technology Ye Jing invented "Chinese herbal medicine impact friction" can effectively solve the problem of ultrafine pulverization efficiency in the ultrafine pulverization method of Chinese herbal medicines, especially existing airflow pulverization devices The disadvantage of the use of physical properties. The working principle is fed from the spiral feeder to the centrifugal disc, and the mixing acceleration tube is passed through the material dispenser and the plurality of nozzles, respectively, the rotary target is respectively, and the rotary target is friction on different rotating target surfaces. Under the action, the medicinal material is impacted, and after rubbing, the coil flows into the turbo grading mechanism of the upper part of the equipment, and the qualified product is separated, and the disguised dispenser will be dispensed. The results of the crush show that there is a good effect on the toughness of the plant's powder brittle Chinese herbal medicine and fiber, and the pearl mother of minerals has a good effect. Thermal resin has a good effect.
Iron silicone aluminum powder is melted by alloy, high pressure nitrogen atomization, and prepared a lower oxygen content, a better spherical degree, which is mainly used for the field of soft magnetic material such as metal powder. Low loss, higher DC offset features. In the application of iron silicon aluminum powder, the size of its particle size directly affects its availability, and is required to separate the fine powder of the suitable particle size from the thick fine iron silica powder, which is required to use the FWDB airflow classifier. The airflow classifier can accurately separate the fine powder in 3-54 microns, and can adjust the particle size section any. Let's introduce the FWDB airflow classifier.
FWDB airflow classifier is based on the traditional airflow classifier, replacing ordinary air supply (air) is inert gas (nitrogen, helium, argon, etc.), the material The feed system enters the classification chamber, and the powder mixed in the gas-solid two-phase fluid is separated by the particle diameter of the powder by the centrifugal force generated by the rotation of the rotor. The coarse granules are sinking with gravity and centrifugal force, and most of the particles are brought into a grading chamber, and the particles required to granularize the granularity of the gradation force through the gap between the graded blades through the gap between the graded blades into the collection system, the material powder The coarse particles in which the coarseness is used by a large centrifugal force, and the rotor blade is throwing around the cylinder and fell in the cylinder. It is subjected to the secondary wind gas stream in the landing process, so that the fine powder of the coarse granules It is again blown to the grading chamber, and the coarse powder is excluded by the lower discharge valve under gravity. The raw material is always in the state of inert gas protection during the grading process, and the pureness of the raw material can be effectively guaranteed.And explosion explosion oxidation.
FWDB airflow classifier has the following advantages in the sorting of iron silicon powder:
◆ The model is equipped with a forced dispersion reduction device, its unique flow field structure, can be effective for agglomerate powder Dispersion dissociation to improve its grading efficiency;
◆ Wide applicable range, can be used according to flammable and explosive powder characteristics to choose from inert gas to protect gas;
◆ can be based on process and The product characteristics require the purity of inert gas;
◆ Using closed circulation system, nitrogen circulation, small loss;
◆ Hierarchical blade is molded, and special balance processing is made through the aviation test platform to operate More stable, the vibration is extremely small.
◆ The entire system uses a PLC automatic control system to achieve automatic nitrogen nitrogen and pressure balance (the control system passes the repeated test, proves its performance stability, now put into use), and truly realizes one-click operation.
◆ Increase the filter area of the dust collector, and use our company's unique induced pulse gray ash system to ensure that the system is stable for a long time; the filter material uses imported filter material, collecting efficiency ≥99.99%.
After many practical applications, iron silicon aluminum fine powders perform fine grading preparation for fine grading machines and highlights. The FWDB airflow classifier can be used to prepare a variety of sheet-like, spherical, irregular shape ultrafine powder, large output, low energy consumption, high grading efficiency, and is the preferred equipment in the powder processing industry.