Silicon fine powder is made of natural quartz (SiO2) or molten quartz (natural quartz high temperature melting, amorphous SiO2 after cooling), ball mill (or vibration, air flow), flotation, pickling, high purity water Treatment of micropowder processed by multi-course process. Silicon fine powder is a non-toxic, odorless, non-polluting inorganic non-metallic material. Since it has excellent temperature resistance, alkali corrosivity, poor thermal conductivity, high insulation, low expansion, chemical performance, high hardness, and widely used in chemical, electronics, integrated circuit (IC), electrical appliances, plastics , Paint, advanced paint, rubber, defense and other fields. With the rapid development of the high-tech field, silicon micropowder will also enter the new historical development period.
Airflow classifier for stainless steel fine grades is generally selected with the FW model. This model is one of the main equipment produced by Shandong Erfa, which is highlighted in the preparation of stainless steel powder. The FW airflow classifier is a centrifugal grading machine with a flow field regulation device and a high-speed turbine rotor. The mounting method of the grading wheel can be divided into two, and the following small series will introduce it.
The working mode of the airflow classifier is that the material is moved with the rising airflow to the grading area under the action of fan effusion, and the powerful centrifugal force generated by the high-speed rotation is made The crude material is separated, and fine particles that meet the particle size requirements are collected by the grading wheel into the cyclone and the dust collector, and the crude particles will fall to the pulverizing region to continue pulverization. The motor drives the hierarchical wheel to rotate at high speed in the hierarchical housing, and a powerful centrifugal force is formed in the classifier. The gas powder mixture entered into the classifier first entered the inside. Under the action of centrifugal force, the large or heavy particles were more centrifuged, so they were lying to the periphery to the sidewall, and no longer affected by the center of centrifugation. Naturally fallen into the crushing host, continue to crush or drop to the discharge port for collection. Small or light materials are subjected to small heart, in the internal hover, the induced fluid effect of the introducer blower is taken to the height, and the compliance is moved to the next component.
The grading wheel of the airflow classifier has two types of installation: horizontal and vertical, vertical can also form a symmetrical centrifuge farm, but because the gas solid two-phase flow is blocked by the bottom plate; to bypass the bottom plate, the division wheel The side space of the cavity is entered from the upper 2/3 region of the grading wheel.
The horizontal grading rotation is different, and the rising airflow carries the powder directly into the centrifugal power field.When the powder enters the grading wheel, change the direction of movement, and is separated from the spiral. In the gravity direction of the particles in the centrifugal force, the fine grading can be obtained, and the fine grade is also advantageous for the crude particles to be separated from the heart ground, and enter the pulverizing region to continue pulverization.
Whether it is a vertical or horizontal airflow classifier, there is a unique advantage that users need to choose according to their own needs. Shandong Erpa can provide various types of airflow classifiers, and provide free experiments and testing, welcome to consult!
To reduce customer pre-investment, reduce project investment risks, improve product competitiveness, and ALPA provides customers with processing services to meet customers' diversification needs. Can be processed by battery materials, environmentally friendly desulfurization, building materials and solid waste, non-metallic mines, pharmaceuticals, food / cosmetics / health products, fine chemicals, powder metallurgy, high-tech materials, and other materials.