CN102652894A - Acid-base tail gas recycling device - Google Patents

Acid-base tail gas recycling device Download PDF

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Publication number
CN102652894A
CN102652894A CN2012101159266A CN201210115926A CN102652894A CN 102652894 A CN102652894 A CN 102652894A CN 2012101159266 A CN2012101159266 A CN 2012101159266A CN 201210115926 A CN201210115926 A CN 201210115926A CN 102652894 A CN102652894 A CN 102652894A
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CN
China
Prior art keywords
gas
absorption
absorption tower
valve
pipeline
Prior art date
Application number
CN2012101159266A
Other languages
Chinese (zh)
Inventor
韦须林
Original Assignee
江苏亚洲气体设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏亚洲气体设备有限公司 filed Critical 江苏亚洲气体设备有限公司
Priority to CN2012101159266A priority Critical patent/CN102652894A/en
Publication of CN102652894A publication Critical patent/CN102652894A/en

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Abstract

The invention discloses an acid-base tail gas recycling device. A primary absorption spraying and detoxifying device comprises an absorption tower, wherein the right side of the absorption tower is connected with an absorption circulating device through a connecting pipeline; at the right side of the absorption circulating system, the absorption tower is simultaneously connected with an absorption device through the connecting pipeline; the left side of the absorption tower is provided with an acidic and alkaline gas inlet; the absorption circulating device comprises a circulating pump, thus the height of the liquid level of the absorption tower is lowered; a spray-head is arranged at the upper part of the absorption tower; a gas outlet is arranged above the absorption tower; the gas after primary absorption spraying and detoxifying is discharged through the gas outlet, and the gas enters the absorption device through the connecting pipeline for detoxification by an absorption agent; and a gas discharge port is arranged at the upper part of the absorption device and is used for discharging the processed tail gas. A secondary combined detoxifying mode is adopted for the device provided by the invention, through the forced circulation of a circulating pump, the height of the liquid level of the absorption tower is lowered, and the toxic gas concentration in the tail gas is ensured to be lowered to the trace amount value through a solid absorption agent.

Description

A kind of soda acid device for recovering tail gas
Technical field
The present invention relates to a kind of soda acid device for recovering tail gas, a kind of specifically secondary is united the device for recovering tail gas of detoxifcation mode.
Background technology
As everyone knows; Acid discharging with alkalescence or other toxic gases all has pollution to environment; The retracting device majority of traditional tail gas or poison gas is the mode that adopts the absorption tower, but in removal process, can not the concentration of poison gas be dropped to minimum, even can not satisfy environmental protection requirement; Can not mix with routine detoxifcation mode for what some need promptly detoxify, bring inconvenience.
Summary of the invention
In order to address the above problem; The invention provides a kind of soda acid device for recovering tail gas, this device adopts secondary to unite the detoxifcation mode, the characteristics that the absorption process capacity is big, the absorption method adsorption deeply is high; Through twice detoxifcation, guarantee that the poison gas concentration in the tail gas is reduced to the trace value.
In order to achieve the above object, the present invention realizes through following technical scheme:
The present invention is a kind of soda acid device for recovering tail gas, comprises that elementary absorption spray detoxification device is connected pipeline (3) with the adsorbent detoxification device with many, and elementary absorption spray detoxification device comprises the absorption tower; The right side, absorption tower connects an absorption cycle apparatus through connecting pipeline; Right side, absorption tower in the absorption circulatory system connect an absorber simultaneously through connecting pipeline, are provided with sour gas inlet and alkaline gas inlet in the left side on absorption tower, and the connection pipeline of sour gas inlet is provided with a valve K1; On the connection pipeline of alkaline gas inlet, be provided with valve K2; Sour gas and alkaline gas flow in the absorption tower through valve K3 after through valve K1 and valve K2, and absorption cycle apparatus comprises one through connecting the circulating pump that pipeline and absorption tower link together, the height of reduction absorption tower liquid level; Top on the absorption tower also is provided with a shower nozzle; One gas outlet is set above the absorption tower, discharges through the gas outlet, carry out the adsorbent detoxifcation through connecting pipeline entering absorber through elementary absorption spray detoxifcation gas afterwards; Connect an exhaust outlet on the top of absorber, discharge treated tail gas.
Further improvement of the present invention is: the bottom left on the absorption tower is provided with leakage fluid dram; The pipeline that is connected between leakage fluid dram and the absorption tower is provided with what valve K10 of control discharge opeing; Also be provided with urgent sour gas inlet and urgent alkalescence inlet in the left side on absorption tower; Urgent sour gas inlet is provided with valve K7, and urgent alkaline gas porch is provided with valve K8.
Further improvement of the present invention is: the pipeline that is connected between gas outlet and absorber divides two-way to connect; Wherein one the tunnel be the gas outlet with absorber between be connected valve K5 be set on the pipeline; Another road be said gas outlet with absorber between be connected valve K4 be set on the pipeline; Gas through the gas outlet need not carry out passing through when adsorbent detoxifies valve K5 directly through the exhaust outlet discharge; When the gas through the gas outlet need carry out the secondary detoxifcation, enter in the absorber, the poison gas concentration of tail gas is dropped to minimum through valve K4.
Further improvement of the present invention is: in the bottom of absorber one sewage draining exit is set, discharges the impurity in the absorber.
The invention has the beneficial effects as follows: present device adopts secondary to unite the detoxifcation mode, brings into play the speciality that the absorption process capacity is big, the absorption method adsorption deeply is high simultaneously.Elementary employing absorbs the spray detoxifcation, uses packed absorber to realize the good absorption effect, through the forced circulation of circulating pump, reduces the absorption tower liquid level, reduces operation sequence.Secondary adopts the adsorbent detoxifcation, guarantees that through solid absorbent the poison gas concentration in the tail gas is reduced to the trace value, satisfies environmental requirement.Adopt spray equipment, reduce fouling and obstruction.
The present invention is simple in structure, and is easy to make, adopts secondary detoxifcation mode, makes the poison gas concentration of tail gas drop to minimum.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
In order to deepen to understanding of the present invention, will combine accompanying drawing and embodiment that the present invention is done below and describe in further detail, this embodiment only is used to explain the present invention, protection scope of the present invention is not constituted to limit.
As shown in Figure 1; The present invention is a kind of soda acid exhaust gas recovery system, comprises that elementary absorption spray detoxification device is connected pipeline 3 with the adsorbent detoxification device with many, and said elementary absorption spray detoxification device comprises absorption tower 1; In said absorption tower, carry out elementary detoxifcation mode; 1 right side, said absorption tower connects an absorption cycle apparatus 2 through connecting pipeline 3, through the forced circulation of circulating pump 13, reduces the absorption tower liquid level; Right side, said absorption tower 1 in the said absorption circulatory system 2 connect an absorber 4 simultaneously through connecting pipeline 3; Through absorber 4 detoxifcations, the poison gas concentration in the tail gas is reduced to minimum, be provided with sour gas inlet 5 and alkaline gas inlet 6 in the left side on said absorption tower 1; The connection pipeline 3 of said sour gas inlet 5 is provided with a valve K1 7; On the connection pipeline 3 of said alkaline gas inlet 6, be provided with valve K2 8, said sour gas and alkaline gas flow in the said absorption tower 1 through a valve K3 9 with said valve K2 8 backs through said valve K1 7, and the bottom left on said absorption tower 1 is provided with leakage fluid dram 10; The pipeline 3 that is connected between said leakage fluid dram 10 and the said absorption tower 1 is provided with what valve K10 11 of control discharge opeing; Also be provided with urgent sour gas inlet 14 and said urgent alkalescence inlet 15 in the left side on said absorption tower 1, said urgent sour gas inlet 14 is provided with valve K7 16, and said urgent alkaline gas 15 places that enter the mouth are provided with valve K8 17; Said absorption cycle apparatus 2 comprises one through connecting the circulating pump 13 that pipeline 3 is connected with said absorption tower 1; Reduce the height of said absorption tower 2 liquid levels; On the top on said absorption tower 1 shower nozzle 12 is set also; One gas outlet 18 is set above said absorption tower 1, discharges through said gas outlet 18, carry out the adsorbent detoxifcation through connecting the said absorber 4 of pipeline 3 entering through elementary absorption spray detoxifcation gas afterwards; Connect an exhaust outlet 21 on the top of said absorber 4, discharge treated tail gas; The 3 fens two-way of pipeline that are connected between said gas outlet 18 and said absorber 4 connect; Wherein one the tunnel be said gas outlet 18 with said absorber 4 between be connected that valve K5 19 and another road are set on the pipeline 3 is said gas outlet 18 with said absorber 4 between be connected valve K4 20 be set on the pipeline 3; When need not carrying out the adsorbent detoxifcation, the gas of the said gas outlet 18 of process directly do not pass through said exhaust outlet 21 discharges through said valve K5 19; When the gas through said gas outlet 18 need carry out the secondary detoxifcation; Enter in the said absorber 4 through said valve K4 20, the poison gas concentration of tail gas is dropped to minimum; In the bottom of said absorber 4 sewage draining exit 22 is set, discharges the impurity in the said absorber 4.
Present device adopts secondary to unite the detoxifcation mode, brings into play the speciality that the absorption process capacity is big, the absorption method adsorption deeply is high simultaneously.Elementary employing absorbs the spray detoxifcation, uses packed absorber to realize the good absorption effect, through the forced circulation of circulating pump, reduces the absorption tower liquid level, reduces operation sequence.Secondary adopts the adsorbent detoxifcation, guarantees that through solid absorbent the poison gas concentration in the tail gas is reduced to the trace value, satisfies environmental requirement.Adopt spray equipment, reduce fouling and obstruction.
The present invention is simple in structure, and is easy to make, adopts secondary detoxifcation mode, makes the poison gas concentration of tail gas drop to minimum.

Claims (4)

1. soda acid device for recovering tail gas; Comprise that elementary absorption spray detoxification device is connected pipeline (3) with the adsorbent detoxification device with many; It is characterized in that: said elementary absorption spray detoxification device comprises absorption tower (1); Right side, said absorption tower (1) connects an absorption cycle apparatus (2) through connecting pipeline (3); On the right side of the said absorption circulatory system (2), said absorption tower (1) connect an absorber (4) simultaneously through connecting pipeline (3); Be provided with sour gas inlet (5) and alkaline gas inlet (6) in the left side of said absorption tower (1); The connection pipeline (3) of said sour gas inlet (5) is provided with a valve K1 (7), on the connection pipeline (3) of said alkaline gas inlet (6), is provided with valve K2 (8), and said sour gas and alkaline gas flow in the said absorption tower (1) through a valve K3 (9) through said valve K1 (7) and said valve K2 (8) back; Said absorption cycle apparatus (2) comprises one through connecting the circulating pump (13) that pipeline (3) is connected with said absorption tower (1); Reduce the height of said absorption tower (1) liquid level, a shower nozzle (12) also is set, a gas outlet (18) is set in the top of said absorption tower (1) on the top of said absorption tower (1); Gas through after the detoxifcation of elementary absorption spray is discharged through said gas outlet (18); Get into said absorber (4) through connection pipeline (3) and carry out the adsorbent detoxifcation, connect an exhaust outlet (21), discharge treated tail gas on the top of said absorber (4).
2. according to the said a kind of soda acid device for recovering tail gas of claim 1; It is characterized in that: the bottom left in said absorption tower (1) is provided with leakage fluid dram (10); The pipeline (3) that is connected between said leakage fluid dram (10) and said absorption tower (1) is provided with what valve K10 (11) of control lifting rate; Also be provided with urgent sour gas inlet (14) and said urgent alkalescence inlet (15) in the left side of said absorption tower (1); Said urgent sour gas inlet (14) is provided with valve K7 (16), and said urgent alkaline gas inlet (15) locates to be provided with valve K8 (17).
3. according to claim 1 or 2 said a kind of soda acid device for recovering tail gas; It is characterized in that: the pipeline (3) that is connected between said gas outlet (18) and said absorber (4) divides two-way to connect; Wherein one the tunnel be said gas outlet (18) with absorber (4) between be connected valve K5 (19) be set on the pipeline (3); Another road be said gas outlet (18) with said absorber (4) between be connected valve K4 (20) be set on the pipeline (3); Gas through said gas outlet (18) need not carry out passing through when adsorbent detoxifies said valve K5 (19) directly through said exhaust outlet (21) discharge; When the gas through said gas outlet (18) need carry out the secondary detoxifcation, enter in the said absorber (4), the poison gas concentration of tail gas is dropped to minimum through said valve K4 (20).
4. according to the said a kind of soda acid device for recovering tail gas of claim 3, it is characterized in that: in the bottom of said absorber (4) sewage draining exit (22) is set, discharges the impurity in the said absorber (4).
CN2012101159266A 2012-04-19 2012-04-19 Acid-base tail gas recycling device CN102652894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101159266A CN102652894A (en) 2012-04-19 2012-04-19 Acid-base tail gas recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101159266A CN102652894A (en) 2012-04-19 2012-04-19 Acid-base tail gas recycling device

Publications (1)

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CN102652894A true CN102652894A (en) 2012-09-05

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1846837A (en) * 2005-04-13 2006-10-18 刘贵明 Treating method of lacquer spraying waste gas
JP2007245011A (en) * 2006-03-16 2007-09-27 Sumika Chemtex Co Ltd Air cleaner
CN201098599Y (en) * 2007-06-06 2008-08-13 江苏莱顿宝富塑化有限公司 Absorbing device for vacuum tail gas of polystyrene production
CN101732943A (en) * 2010-01-29 2010-06-16 北京绿创大气科技有限公司 Device and method for controlling waste gas
CN201692761U (en) * 2010-02-03 2011-01-05 三门峡朝阳科技有限公司 Acid gas absorption device for silver dissolution
CN102078747A (en) * 2010-12-27 2011-06-01 苏州天立蓝环保科技有限公司 Organic waste gas treating and recycling device and method
CN202620983U (en) * 2012-04-19 2012-12-26 江苏亚洲气体设备有限公司 Acid-base tail gas reclaimer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1846837A (en) * 2005-04-13 2006-10-18 刘贵明 Treating method of lacquer spraying waste gas
JP2007245011A (en) * 2006-03-16 2007-09-27 Sumika Chemtex Co Ltd Air cleaner
CN201098599Y (en) * 2007-06-06 2008-08-13 江苏莱顿宝富塑化有限公司 Absorbing device for vacuum tail gas of polystyrene production
CN101732943A (en) * 2010-01-29 2010-06-16 北京绿创大气科技有限公司 Device and method for controlling waste gas
CN201692761U (en) * 2010-02-03 2011-01-05 三门峡朝阳科技有限公司 Acid gas absorption device for silver dissolution
CN102078747A (en) * 2010-12-27 2011-06-01 苏州天立蓝环保科技有限公司 Organic waste gas treating and recycling device and method
CN202620983U (en) * 2012-04-19 2012-12-26 江苏亚洲气体设备有限公司 Acid-base tail gas reclaimer

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Application publication date: 20120905