Titanium high temperature electrolytic furnace special-purpose tail gas processing system

A technology of tail gas treatment and high-temperature electrolysis, which is applied to the separation of dispersed particles, chemical instruments and methods, and separation methods, can solve the problems of calcium fluoride dust polluting the environment and harming the human body, and achieve good absorption effects, environmental protection, and operation simple effect

Inactive Publication Date: 2011-12-28
宝纳资源控股(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Hydrogen fluoride gas is harmful to the human body, and

Method used

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  • Titanium high temperature electrolytic furnace special-purpose tail gas processing system
  • Titanium high temperature electrolytic furnace special-purpose tail gas processing system
  • Titanium high temperature electrolytic furnace special-purpose tail gas processing system

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Embodiment Construction

[0026] The present invention uses a wet purification method to remove soluble gas hydrogen fluoride, that is, a sodium carbonate solution with a content of 2%-10%, preferably 5%, is used to wash the tail gas. The principle is to make Na 2 CO 3 It reacts with HF in the exhaust gas to generate sodium bicarbonate and sodium fluoride. Because sodium fluoride is corrosive to glass, it is necessary to use plastic containers and pipelines to build an exhaust gas treatment system. Since the tail gas also contains a small amount of solid calcium fluoride or mixed dust of calcium fluoride and lithium fluoride, a dust collector is used to remove the solid dust in the tail gas before using the wet purification method, and the solid dust can be recycled after recycling. use. Of course, other solutions can also be used to scrub the tail gas, such as sodium hydroxide solution with a content of 2-6%.

[0027] Such as figure 1 As shown, the tail gas treatment system of the present inventio...

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Abstract

The invention relates to a titanium high temperature electrolytic furnace special-purpose tail gas processing system, wherein the tail gas contains a hydrogen fluoride gas and a few solid calcium fluoride dust or calcium fluoride and lithium fluoride mixed dust. The system provided by the invention comprises a deduster, a pneumatic tube, a tail gas control device, a tail gas processing device, a woven hose and a proportioning device, wherein the deduster is used to remove a few solid calcium fluoride dust or the calcium fluoride and lithium fluoride mixed dust contained in the tail gas; the pneumatic tube is used to convey the tail gas into the tail gas processing device; the tail gas control device is used to control the flow of the tail gas; the woven hose is used to convey an absorption liquid into the tail gas processing device; and the proportioning device is used to proportion the absorption liquid and pump the absorption liquid into the tail gas processing device through the woven hose.

Description

technical field [0001] The invention relates to a tail gas treatment system, more specifically, to a special tail gas treatment system for a titanium high-temperature electrolytic furnace. Background technique [0002] Titanium and titanium alloys have excellent properties such as light specific gravity, high specific strength, good creep resistance at high temperature, and corrosion resistance. They are widely used as structural materials in aerospace, metallurgy, and automobile industries. They can also be used as functional materials, such as storage Hydrogen materials, shape memory alloy materials, etc. The traditional method of preparing titanium is the magnesium thermal reduction method. This method is to prepare titanium tetrachloride from titanium-containing minerals, and then reduce titanium tetrachloride with magnesium to obtain titanium sponge. Finally, it is produced by vacuum consumable electric arc melting. It is made into dense titanium ingots, and then made ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/68
Inventor 贾文成刘美凤曹志新
Owner 宝纳资源控股(集团)有限公司
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