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Low-concentration waste gas degassing conversion and high-concentration waste gas incineration recovery system and process

A recovery system and high-concentration technology, applied in incinerators, combustion methods, gas treatment, etc., can solve the problems of lye waste, increase the difficulty of sewage treatment, and failure to recycle, and achieve the effect of recycling

Pending Publication Date: 2021-04-13
阿拉尔市中泰纺织科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, a large amount of lye is used when using lye to wash the gas. After the lye cannot be used, it will be discharged to the water treatment workshop. This process not only causes waste of lye, but also the H in the exhaust gas 2 S gas has not been recycled repeatedly; waste lye has increased production costs and increased the difficulty of sewage treatment

Method used

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  • Low-concentration waste gas degassing conversion and high-concentration waste gas incineration recovery system and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] On the basis of the above-mentioned structure, in this embodiment, the interior of the spray tower 1 is fixedly installed with spray devices 6 and a plurality of packing layers 7 at intervals from top to bottom, the lye inlet communicates with the spray devices 6, and a plurality of The packing layer 7 is located above the exhaust gas inlet, and the bottom of the spray tower 1 is connected to the top of the first section of the reactor 2 through a pipeline; the circulating pump 5 is connected to the part above any packing layer 7 on the spray tower 1 through a return pipe . During the alkali cleaning process, the waste gas containing hydrogen sulfide enters the spray tower 1 from the waste gas inlet at the lower part of the spray tower 1, and continues to rise; at the same time, the waste lye enters the spray device from the lye inlet at the top of the spray tower 1, Spray through the spraying device 6; the waste gas containing hydrogen sulfide contacts and reacts with ...

Embodiment 2

[0043] On the basis of Embodiment 1, in this embodiment, the lower part of the spray tower 1 is fixed with an on-site liquid level gauge 8 by bolts, and the on-site liquid level gauge 8 is located below a plurality of packing layers 7; A remote liquid level gauge 9 is also fixedly installed by bolts, and the remote liquid level gauge 9 is connected with the on-site liquid level gauge 8 . Monitor the liquid level inside the spray tower 1 in real time through the on-site liquid level gauge 8 to avoid excessive liquid level; at the same time, the remote liquid level gauge 9 and the on-site liquid level gauge 8 maintain the same liquid level, that is, the remote liquid level gauge 9 The liquid level is the liquid level in the spray tower 1, and the corresponding liquid level signal is sent to the controller, so that the on-site workers can know the liquid level inside the spray tower 1 in time.

Embodiment 3

[0045] On the basis of the above-mentioned structure, in the present embodiment, the lye inlet is communicated with the lye equipment 10 through the lye pipeline, and the lye equipment can be a box housing the lye, and a delivery pump is installed in the box, and the delivery pump Send the spent lye to the spray tower 1; the lye pipeline, the return pipe, and the pipeline between each circulation pump 5 and the first section of the reactor 2 are respectively connected with maintenance pipes at the parts close to the corresponding spray tower 1 Road one, the inlet and outlet of each=maintenance pipe one are respectively connected on the corresponding pipeline; on each maintenance pipeline one and on the lye pipeline, on the return pipe and the pipe between the circulating pump 5 and one section of the reactor 2 Valves 1 are respectively installed on the positions between the inlet and the outlet of corresponding maintenance pipeline 1 on the road. The maintenance pipeline is co...

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Abstract

The invention discloses a low-concentration waste gas degassing conversion and high-concentration waste gas incineration recovery system and process. The system comprises a first-section reaction kettle, a second-section reaction kettle and at least one spray tower, an alkali liquor inlet and a waste gas inlet are formed in the top and the lower portion of each spray tower respectively, and a tail gas exhaust port is further formed in the top of each spray tower; the bottom of each spray tower is communicated with the top of the first-section reaction kettle through a pipeline, a circulating pump is arranged at the part, close to the spray tower, of the pipeline between each spray tower and the first-section reaction kettle, and the pipeline between each circulating pump and the first-section reaction kettle is communicated with the upper part of the corresponding spray tower through a return pipe; the bottom of the first-section reaction kettle is communicated with the top of the second-section reaction kettle through a pipeline, and the top of the first-section reaction kettle and the top of the second-section reaction kettle are respectively communicated with an incinerator through pipelines; and the top of the first-section reaction kettle and the top of the second-section reaction kettle are respectively provided with an acid liquor inlet and a waste gas outlet. Effective concentration of the low-concentration hydrogen sulfide gas is realized, so that recycling of the hydrogen sulfide gas is realized, and energy conservation and environmental protection are realized.

Description

technical field [0001] The invention relates to the technical field of chemical waste gas recovery, in particular to a low-concentration waste gas degassing conversion high-concentration waste gas incineration recovery system and process. Background technique [0002] There is a large amount of low concentration H in the production of viscose fiber industry 2 S waste gas cannot be reused due to the large amount of waste gas, so it can only be sent to the exhaust tower after washing the gas with alkali. In this process, a large amount of lye is used when using lye to wash the gas. After the lye cannot be used, it will be discharged to the water treatment workshop. This process not only causes waste of lye, but also the H in the exhaust gas 2 The S gas has not been recycled repeatedly; the waste lye has increased the production cost and increased the difficulty of sewage treatment. Contents of the invention [0003] The technical problem to be solved by the present inventi...

Claims

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Application Information

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IPC IPC(8): B01D53/52B01D53/78C01B17/16F23G7/06
CPCB01D53/52B01D53/78C01B17/165F23G7/06B01D2258/02
Inventor 王彦波吴宏辉宫正杨振波刘润利李红光杨运冲苏明
Owner 阿拉尔市中泰纺织科技有限公司
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