Zinc-cadmium electric heating smelting rotary kiln

Abstract

The invention discloses a zinc-cadmium electric heating smelting rotary kiln. A feed port (3) and an exhaust port (4) are arranged at the front end of a kiln body (1), a condenser (5) is arranged at the front section of the kiln body (1), a material delivery and preheating rotary barrel (6) is arranged in the middle of the condenser (5), and an automatic zinc liquid overflowing device (7) is arranged below the condenser (5); an automatic material sealing device (8) is arranged in the middle section of the kiln body (1), a graphite heating element (9) is arranged at the back section of the kiln body (1), an external surface of the kiln body (1) is provided with a transformer (10) and a brush gear (11), and a sealing device (12), a lead liquid enriching device (13) and an automatic residue discharge device (14) are arranged at the tail end of the kiln body (1). The rotary kiln meets requirements of environmental protection, energy conservation and circular economy, and is suitable for smelting zinc, cadmium and lead zinc mixtures as well as other non-ferrous metals.

Description

technical field [0001] The invention relates to nonferrous metal smelting equipment, in particular to a zinc-cadmium electrothermal smelting rotary kiln, which belongs to the technical field of metallurgy. Background technique [0002] In the prior art, the smelting methods of metal zinc and cadmium are mainly divided into wet method and fire method. Hydrometallurgy generally requires huge investment, difficult wastewater treatment, strong selectivity to raw materials, large occupation area, and large consumption of chemical auxiliary materials. Pyrometallurgical smelting includes vertical tank smelting, blast furnace smelting and electric furnace smelting, all of which have disadvantages such as high smelting temperature, high energy consumption, strong selectivity to raw materials, large amount of waste gas, large investment per unit output, and high cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a zinc...

AI Technical Summary

Problems solved by technology

Hydrometallurgy generally requires huge investment, difficult wastewater treatment, strong selectivity to raw materials, large occupied area, and large consumption of chemical auxiliary materials

Pyrometallurgical smelting includes vertical tank smelting, blast furnace smelting and electric furnace smelting, etc., all of which have disadvantages such as high smelting temperature, high energy consumption, strong selectivity to raw materials, large amount of waste gas, large investment per unit output, and high cost.

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