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Device for treating refined cotton bleaching tail gas

A tail gas treatment and cotton refining technology, applied in gas treatment, separation methods, dispersed particle separation, etc., can solve problems such as air pollution, poor tail gas absorption effect, chlorine dioxide overflow, etc., to improve absorption effect and occupy an area Small area, enhanced gas-liquid contact effect

Inactive Publication Date: 2017-09-12
HUBEI JINHANJIANG REFINED COTTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of chlorine dioxide tail gas will be produced in the process of bleaching with chlorine dioxide solution. At present, the tail gas generally uses sodium hydroxide aqueous solution as an absorbent and absorbs it by spraying, but there is still a large amount of chlorine dioxide overflowing, and the tail gas The absorption effect is not good, and it will still pollute the air environment

Method used

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  • Device for treating refined cotton bleaching tail gas
  • Device for treating refined cotton bleaching tail gas
  • Device for treating refined cotton bleaching tail gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Depend on figure 1 As shown, the refined cotton bleaching tail gas treatment device includes a tower body 1 with a hollow cylindrical structure, a spray pipe 2, a screen plate 3, a demister 4, a guide tube 5, a downcomer 6, and a pair of Acceleration tube 7, paired pressure atomizing nozzle 8, gas distributor 9 and paired water pump 10, the top of the tower body 1 is provided with a waste gas outlet 11, and an absorbent 12 is contained in the tower body 1, the The absorbent 12 is a mixed solution of sodium percarbonate and sodium perborate. The side walls of the tower body 1 are respectively provided with a spray port 13, a pair of accelerator tube inlets 14, a gas distributor inlet 15 and a pair of water pump inlets 16, and the guide tube 5 is fixed by a first bracket 17 Installed inside the tower body 1, the guide tube 5 is made of glass fiber reinforced plastics, and an annular guide groove 18 is formed between the outer wall of the guide tube 5 and the inner side w...

Embodiment 2

[0026] Depend on figure 1 As shown, the refined cotton bleaching tail gas treatment device includes a tower body 1 with a hollow cylindrical structure, a spray pipe 2, a screen plate 3, a demister 4, a guide tube 5, a downcomer 6, and a pair of Acceleration tube 7, paired pressure atomizing nozzle 8, gas distributor 9 and paired water pump 10, the top of the tower body 1 is provided with a waste gas outlet 11, and an absorbent 12 is contained in the tower body 1, the The absorbent 12 is a mixed solution of sodium percarbonate, sodium perborate and EDTA. The side walls of the tower body 1 are respectively provided with a spray port 13, a pair of accelerator tube inlets 14, a gas distributor inlet 15 and a pair of water pump inlets 16, and the guide tube 5 is fixed by a first bracket 17 Installed inside the tower body 1, the guide tube 5 is made of glass fiber reinforced plastics, and an annular guide groove 18 is formed between the outer wall of the guide tube 5 and the inner si...

Embodiment 3

[0031] Depend on figure 1 As shown, the refined cotton bleaching tail gas treatment device includes a tower body 1 with a hollow cylindrical structure, and it also includes a spray pipe 2, a mesh plate 3, a demister 4, a guide tube 5, and a downcomer 6 , paired acceleration tubes 7, paired pressure atomizing nozzles 8, gas distributor 9 and paired water pumps 10, the top of the tower body 1 is provided with a waste gas outlet 11, and the tower body 1 is filled with absorption Agent 12, the absorbent 12 is a mixed solution of sodium percarbonate and EDTA. The side walls of the tower body 1 are respectively provided with a spray port 13, a pair of accelerator tube inlets 14, a gas distributor inlet 15 and a pair of water pump inlets 16, and the guide tube 5 is fixed by a first bracket 17 Installed inside the tower body 1, the guide tube 5 is made of glass fiber reinforced plastics, and an annular guide groove 18 is formed between the outer wall of the guide tube 5 and the inner...

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Abstract

The invention discloses a device for treating refined cotton bleaching tail gas. The device is characterized in that a waste gas outlet is formed in the top of tower, the tower is loaded with an absorbing agent, a spraying port, paired accelerating tube inlets, a gas distributor inlet and paired water pump inlets are formed in the lateral wall of the tower, a flow guide cylinder is fixedly mounted inside the tower through a first support, an annular flow guide groove is formed between the outer lateral wall of the flow guide cylinder and the inner lateral wall of the tower, gas inlets are formed in the lateral wall of the flow guide cylinder, the bottom of the flow guide cylinder is conical, a liquid downflow port is formed in the conical bottom, the upper end of a downcomer is fixedly mounted at the bottom of the flow guide cylinder and communicated with the liquid downflow port, and the lower end of the downcomer is submerged into the absorbing agent. The device has the advantages that the absorbing effect of the device is 3-4 times of that of a common aqueous solution, and the waste gas absorbing effect is increased greatly; the atomizing degree of the absorbing agent is enhanced greatly to greatly increase the contact area between waste gas and the absorbing agent when the waste gas collides with a flow reaction area.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment devices, more specifically to the technical field of tail gas treatment devices during bleaching of refined cotton. Background technique [0002] The production process of refined cotton is generally cotton opening-cooking-bleaching-rolling-drying-loading. Among them, during the bleaching process of refined cotton, since the oxidation potential of chlorine dioxide is lower than that of cellulose, but higher than that of impurities and pigments attached to cellulose, it is often used as a bleaching solution for oxidizing fibers. Impurities and pigments on cellulose, but relatively stable for cellulose carbohydrates. However, a large amount of chlorine dioxide tail gas will be produced in the bleaching process using chlorine dioxide solution. At present, the tail gas is generally absorbed by using a sodium hydroxide aqueous solution as an absorbent and sprayed, but there is still a large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/68B01D53/78
CPCB01D53/68B01D2251/902B01D2251/606B01D2251/304B01D2259/124B01D2258/02B01D2257/204
Inventor 吴广文邹扬周航旭
Owner HUBEI JINHANJIANG REFINED COTTON
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