Acid leaching ore pulp liquid drying pyrolysis device

Abstract

An acid leaching ore pulp liquid drying pyrolysis device comprises an outer shell, ore pulp liquid pyrolysis disc sets arranged in the shell, a feeding pipe, a scraping knife, a steel brush, a material absorption device, a heat source system and a transmission device, wherein the feeding pipe, the scraping knife, the steel brush and the material absorption device are used in cooperation with the disc sets and arranged in the shell. The acid leaching ore pulp liquid drying pyrolysis device has the beneficial effects that compared with traditional liquid material drying equipment, the device is of a vertical structure, space arrangement is small, the material contact superficial area is enlarged, the drying pyrolysis efficiency is improved, and energy consumption is reduced; innovation is carried out on the basis of a traditional disc drying machine, an outer jacket type and disc hollow inner cavity dual heating system is adopted, the pyrolysis rate of pulp is increased, meanwhile, pulp liquid pyrolysis discs can rotate intermittently, other auxiliary components such as the scraping knife and the steel brush do not rotate, the number of rotating components is small, the device operating stability is good, and power consumption is low; and a dust suction manner is adopted by dry materials, and compared with a scraper blade chute structure, discharging is simple and thorough.

Description

technical field [0001] The invention belongs to the technical field of hydrometallurgy of ore resources, and in particular relates to an acid leaching ore slurry drying pyrolysis device. Background technique [0002] In industrial production, after mineral resources such as ferronickel are leached by acid solution, it is difficult to separate nickel and iron ions contained in the leaching solution. Traditional evaporation, crystallization, calcination and other processes are adopted, and the process flow is complicated, equipment investment cost is high, and energy consumption is high. relatively bigger. Compared with traditional drying and pyrolysis equipment, because the composition of the leachate is too complex, the water will be evaporated first during the drying and pyrolysis process, and then decomposed to produce nitrogen oxide gas. The use of paddle dryers and drum dryers has problems with poor hanging liquid and low efficiency. Low quality and other defects, while...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high pyrolysis efficiency, relatively low energy consumption, and a Acid leaching ore slurry drying and pyrolysis device with simple materials and stable operation

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