New flotation molybdenum concentrate filter dehydration technique

Abstract

The invention relates to a flotation molybdenum concentrate filtering dehydration process. The flotation molybdenum concentrate is pretreated before being fed into a ceramic filter for filtering dehydration; MT07 No. modifying additive with the weight of 0.05 percent to 0.10 percent of that of dried concentrate is firstly added into the flotation molybdenum concentrate, and the mixture is agitated and mixed evenly to modify the flotation molybdenum concentrate; then the modified flotation molybdenum concentrate is fed into the ceramic filter for filtering dehydration, so as to obtain the concentrate with qualified dehydration indexes. The invention can effectively eliminate the problems such as blockage of a ceramic filter plate of the ceramic filter, and obviously improve the equipment capacity.

Description

technical field [0001] The invention relates to a method for processing molybdenum, tungsten and other non-ferrous metal concentrates for dehydration, in particular to a new process for filtering and dehydrating molybdenum concentrates through flotation. Background technique [0002] The particle size of flotation molybdenum concentrate is very fine, the particle size is less than 3μm, more than 10%, the minimum particle size is 0.13μm, and the viscosity of flotation molybdenum concentrate is high. According to the measurement, when the concentration of molybdenum concentrate is 68%, the viscosity can reach 3.4×10 -5 Pa.s and above. In the prior art, in order to effectively dehydrate, the filter is usually filtered by a ceramic filter acting on the principle of vacuum capillary, so as to ensure that the water content of the concentrate is low and meet the index requirements of concentrate production. Ceramic filter is a solid-liquid separation device designed by using the ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a new technology for flotation molybdenum concentrate filtration and dehydration that can effectively reduce the blockage of the ceramic filter plate of the ceramic filter. Solve the problems of frequent cleaning of ceramic filter plates of filtration equipment, frequent replacement of equipment parts, and excessive labor intensity