Zinc-cadmium electric heating smelting rotary kiln

A rotary kiln and electric heating technology, applied in the field of metallurgy, can solve the problems of high consumption of chemical auxiliary materials, large investment per unit output, strong raw material selectivity, etc., and achieve the effect of improving condensation effect, improving service life, and evenly splashing droplets

Inactive Publication Date: 2013-09-25
徐建成
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  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Zinc-cadmium electric heating smelting rotary kiln
  • Zinc-cadmium electric heating smelting rotary kiln
  • Zinc-cadmium electric heating smelting rotary kiln

Examples

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Embodiment 1

[0016] Example 1. Such as figure 1 As shown, the kiln body 1 is included, and there is a kiln body transmission device 2 at the bottom of the kiln body 1, through which the kiln body transmission device 2 can drive the kiln body 1 to rotate slowly and continuously at an average speed during the smelting process. Kiln body 1 is lined with silicon carbide bricks plus lightweight insulation bricks. The front end of the kiln body 1 is provided with a feed port 3 and an exhaust port 4, the feed port 3 is connected to the feed hopper 17, and the exhaust port 4 is connected to the bag filter. The material is fed into the kiln body 1 from the feed hopper 17 through the feed port 3, and the steam is discharged out of the kiln body 1 through the chimney after preheating the added material through the feed port 3. The exhaust gas produced by smelting is further dissipated in the preheating section (preheating drum 6), and then discharged out of the kiln body 1 through the exhaust port ...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B7/10F27B7/20F27B7/28F27B7/34F27B7/38C22B19/38C22B17/00
CPCY02P10/20
Inventor 徐建成
Owner 徐建成
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