Production of silicon carbide powder Step

1 ball mill) whichever is silicon carbide raw materials, pieces through the crusher, and screened to a is not greater than the of the silicon carbide particles of 5mm, and then shaping machine of its carried out that the shaping to not more is greater than the of the silicon carbide particles of 2mm, and the of which oval-shaped particles accounted for 80 shake Beds.% or more, the re-to its to carried out the The pickling may be detrashed, dried;
(2) will the silicon carbide particles in the the above-mentioned after drying with a milling dryer crushed into d50 = 9.5-11.5μm the silicon carbide powder of while comminuting, when, the milling machine host current is set to 65-75A, fan flow is is set to 40 - 50m3/min analysis speed of 400 - 600 rev / min;
(3) and silicon carbide powder with a vortex air classifier grading, grading, the vortex air classifier fan flow 25-43m3/min, the classifier wheel speed 2600 - 3300 rev / min, from the grading port separation of particle size DS9 Hammer Crusher 4 = 6.5-5.5μm finished A whirlwind port separation of the ds94 ≤ 5.5 of semi-finished products; factory new: flotation machine, jaw broken stone, gravel equipment, jaw crusher , rotary kiln and other equipment has passed ISO9001 international quality system certification.
(4) the vortex air classifier Cyclones mouth separation of semi-finished impeller air classifier and then the second grading, grading, the impeller air classifier fan flow 25-10m3/min classifier wheel speed of 1300 - 1700 rev / min, separated from the mouth grading ds94 = 4.5-3.0μm particle size of the finished product B, the Cyclones port separated by-products.
Sieving:
Sieving the granules, powders into different particle size segment. Single vibration screening machine can be equipped with up to 4 layer screen, continuous sort 2-5 fraction and control a narrow particle size range. Magnetic separator
Sieve out the impurities:
High performance screening machine in the process of the high flow, can quickly remove the separation of the low percentage of large particles or small particles of pulp. The vibration screening function of the various types of slurry of insoluble solids rapid removal and continuous slag.