Device for recovering viscose fiber production exhaust-gas with soda washing-adsorption condensing method

A technology of viscose fiber and alkali washing, applied in separation methods, chemical instruments and methods, steam condensation, etc., can solve problems such as poor waste gas treatment effect, difficult discharge standards, and complicated waste gas treatment process

Inactive Publication Date: 2008-07-16
QUANZHOU TIANLONG ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of waste gas with good treatment effect and high operating cost for the problems of direct discharge of waste gas in the existing viscose fiber production process, or poor waste gas treatment effe...

Method used

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  • Device for recovering viscose fiber production exhaust-gas with soda washing-adsorption condensing method
  • Device for recovering viscose fiber production exhaust-gas with soda washing-adsorption condensing method

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Embodiment Construction

[0021] 1 to 4, the present invention is provided with a waste gas filter 1, an alkali washing tower 2, a solution delivery pump 3, a sodium hydrosulfide storage tank 4, an air compressor 5, a washing tower 6, a circulating pump 7, an adsorption tank 8, a heat Fan 9, heater 10, carbon disulfide storage tank 11, gear infusion pump 12, flow meter 13, solution separator 14, maglev ball liquid level switch 15, condenser 16, water pump 17, cooling tower 18, induced draft fan 19, vacuum pump 20 , H 2 S and CS 2 Concentration analyzer 21, adsorption tank 22, cooler 23, differential pressure gauge, flow analyzer, pneumatic ball valve, pipeline, etc. The input end of the cooler 22 is externally connected to H 2 S, CS 2 Exhaust gas, the outlet of the cooler 22 is connected to the air inlet of the filter 1, the air outlet of the filter 1 is connected to the air inlet of the alkali scrubbing tower 2, and the air outlet located at the top of the alkali scrubbing tower 2 is connected to t...

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Abstract

The invention relates to a device for recycling waste gas generated by viscose through an alkali cleaning-absorbing condensation method, which relates to the equipment for recycling waste gas generated by industries. The device for recycling waste gas generated by viscose through an alkali cleaning-absorbing condensation method has relatively good processing effects and can recycle useful resources in the waste gas with high efficiency. The device is equipped with a waste gas filter, an alkaline tower, a solution transfer pump, a storing tank of sodium hydrosulfide, an air compressor, a washer, a recycle pump, an adsorption tank, an air heater, a heater, a storing tank of carbon bisulfide, a gear transfer pump, a flowmeter, a solution separator, a magnetic levitation ball liquid level switch, a condenser, a water pump, a cooling tower, a draft fan, a vacuum pump, a concentration analyzer of H2S and CS2, an adsorption tank, a cooler and a pneumatic ball valve. Sulfureted hydrogen gas in the waste gas is transformed into sodium hydrosulfide liquid and carbon bisulfide gas in the waste gas is transformed into carbon bisulfide liquid through washing, absorbing, condensing and separating. The carbon bisulfide liquid is employed as raw materials and is directly sent back to the production of the viscose.

Description

technical field [0001] The invention relates to an industrial production waste gas recovery device, in particular to a device for recovering viscose fiber production waste gas by means of alkali washing and adsorption condensation. Background technique [0002] Viscose fiber is a regenerated cellulose fiber made from natural polymer cellulose by adding caustic soda, sulfuric acid, carbon disulfide, zinc sulfate and other chemical raw materials through a series of chemical and physical changes. During the production process, a certain amount of CS will be produced 2 and H 2 S and other harmful gases, causing environmental pollution. How to reduce this pollution is one of the main issues of domestic viscose fiber enterprises. The existing treatment method mainly adopts incineration method, that is, CS 2 and H 2 S waste gas is placed in an incinerator to be incinerated and oxidized to SO 2 , the mixed gas after combustion contains 5% to 6% SO 2 and water (water by H 2 S...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D5/00
Inventor 傅太平
Owner QUANZHOU TIANLONG ENVIRONMENTAL ENG
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