Belt type filter press for pickling acid with silicon carbide micro powder

Abstract

The invention relates to a belt type filter press for pickling acid with silicon carbide micro powder, which is used for neutralizing the silicon carbide micro powder after pickling the acid to grade the water power, wherein the filter press comprises a machine frame (1). The left end and the right end of the machine frame (1) are provided with a conveying roller (2), conveying belts (3) are wound on the two conveying rollers (2), filter belts (4) are wound on the external surfaces of the conveying belts (3), a blanking hopper (5) is arranged at the upper side of the right ends of the filter belts (4), and a receiving hopper (6) is arranged at the lower side of the left ends of the filter belts (4). A collecting groove (7) is arranged between the two conveying rollers (2), and the bottom part of the collecting groove (7) is provided with a plurality of through-holes and connected with a water pumping pipe (8). Multiple spraying pipes (13) are arranged on the machine frame (1) from left to right row by row. The belt type filter press for pickling acid with silicon carbide micro powder not only saves the water source, reduces the production cost and reduces the labour strength of workers, but also improves the processing efficiency.

Description

technical field [0001] The invention relates to a belt filter press for pickling silicon carbide micropowder, which is used for neutralizing the acidity of the pickled silicon carbide micropowder so as to carry out subsequent hydraulic classification process. Background technique [0002] Silicon carbide micropowder is an important material for making solar silicon wafers, semiconductor silicon wafers, engineering ceramics, heating elements, advanced refractory materials and other products. With the vigorous development of new material science, the quality requirements for silicon carbide powder are getting higher and higher. In the production of high-quality silicon carbide powder, hydraulic classification of coarse and fine silicon carbide particles is the most important and most difficult. of technical aspects. Therefore, the silicon carbide micropowder slurry after pickling needs to be neutralized with acid before hydraulic classification to ensure the quality of hydrau...

AI Technical Summary

Problems solved by technology

This neutralization method not only consumes a lot of water, but about 30 tons of water is needed to neutralize one ton of silicon carbide micropowder slurry, which makes the cost higher, and the time for acid neutralization is longer, which affects the processing efficiency. At the same time, workers must Frequent water changes increase the labor intensity of workers

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