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Rotary kiln selenium distillation system

A technology of rotary kiln and selenium steaming, which is applied in the field of metallurgy, can solve the problem that the output of selenium preparation cannot meet the requirements of selenium, and achieve the effect of low pollution and high heat

Active Publication Date: 2015-03-25
NANJING YONGLIANG FURNACE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the output of selenium preparation cannot meet people's demand for selenium at present, it is very necessary to provide an efficient, safe and low-pollution selenium preparation device

Method used

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  • Rotary kiln selenium distillation system
  • Rotary kiln selenium distillation system
  • Rotary kiln selenium distillation system

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0020] Such as figure 1 Shown is the structural representation of the top view of the present invention, figure 2 It is a structural schematic diagram of the A-A direction of the top view of the present invention, image 3 It is a structural schematic diagram of the B-B direction of the top view of the present invention, that is, the direction of the working principle of the present invention is from left to right, and the main steel platform 20 is provided with a pulping feeding system, a sulfated roasting rotary kiln, a selenium absorption system, and a production line control system .

[0021] The slurry feeding system includes a primary feeding slurry mixing tank 4, a secondary slurry mi...

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Abstract

The invention discloses a rotary kiln selenium distillation system which comprises a steel main platform, a slurrying charging system, a sulphating roasting rotary kiln, a selenium absorption system and a production line control system, wherein the slurrying charging system, the sulphating roasting rotary kiln, the selenium absorption system and the production line control system are all arranged on the steel main platform; the slurrying charging system is connected with the left end of the sulphating roasting rotary kiln; the selenium absorption system is connected with the sulphating roasting rotary kiln and comprises a vacuumizing device, a waste heat recovery and smoke discharge system and a selenium absorption device; the sulphating roasting rotary kiln comprises a rotary kiln body and a fuel gas heating system; and a kiln head gas guide pipe is arranged at the upper end of the rotary kiln body and is connected with the selenium absorption device. According to the system disclosed by the invention, large-scale industrial production of selenium products can be realized, and the system has the advantages of high efficiency, high safety and slight pollution.

Description

technical field [0001] The invention relates to a rotary kiln selenium steaming system, which belongs to the technical field of metallurgy. Background technique [0002] Selenium is one of the scattered non-metals. Crude selenium is a by-product in the copper smelting process. The growth of selenium production has been relatively slow, and the annual supply is limited. Selenium has a wide range of uses and can be used in many fields such as metallurgy, glass, ceramics, electronics, solar energy, feed, etc., and with the development of the world economy and the emergence of new application fields, the downstream demand for selenium is constantly increasing. The price of selenium is constantly rising. [0003] The main raw material (90%) for industrial selenium extraction is anode slime produced by copper electrolytic refining, and the rest comes from calcine produced by refining lead, cobalt and nickel, and residual sludge produced by sulfuric acid. Since selenium in copper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/02
CPCY02P20/129C01B19/02
Inventor 蒋正龙
Owner NANJING YONGLIANG FURNACE
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