CN116139643A - Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method - Google Patents
Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method Download PDFInfo
- Publication number
- CN116139643A CN116139643A CN202111395947.3A CN202111395947A CN116139643A CN 116139643 A CN116139643 A CN 116139643A CN 202111395947 A CN202111395947 A CN 202111395947A CN 116139643 A CN116139643 A CN 116139643A
- Authority
- CN
- China
- Prior art keywords
- tail gas
- pipe
- tank
- waste acid
- acid concentration
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The embodiment of the application provides a waste acid concentration tail gas absorption device and a waste acid concentration tail gas treatment method. The device is including the vacuum tank that is arranged in collecting the concentrated acid concentrated system tail gas, the vacuum tank passes through first connecting pipe connection dry-type screw vacuum pump air inlet, the dry-type screw vacuum pump air outlet end passes through the second connecting pipe and connects the tail gas condenser air inlet, first blow-down pipe is installed at tail gas condenser top, first blow-down pipe passes through the third connecting pipe and connects the sprayer, the sprayer is installed in the tail gas absorption jar upper end that is used for storing alkali lye, tail gas absorption jar lower extreme surface has tail gas circulating pump air inlet through the pipe connection, tail gas circulating pump air outlet end is linked together with the sprayer through the gas-supply pipe, surface mounting has the blast pipe that is connected with the second blow-down pipe on the tail gas absorption jar. Compared with the prior art, the invention has the following beneficial effects: the wastewater treatment cost is reduced, the energy-saving effect is achieved, part of materials are recovered, the consumption is reduced, and the nitrate smoke is stopped.
Description
Technical Field
The application relates to a waste acid concentration tail gas absorption device and a waste acid concentration tail gas treatment method, and belongs to the technical field of tail gas treatment.
Background
In chemical industry, acids are generally used as reaction materials, media, or catalysts, and after the reaction, a large amount of industrial waste acid is generally produced after the water washing treatment. After the waste acid is concentrated, waste acid concentration tail gas is pumped by a water ring vacuum pump, but the water ring vacuum pump generates more acid waste water, the tail gas recovery rate is low, and a tail gas pipe emits yellow nitrate smoke containing 1-3% of sulfuric acid, so that the waste acid concentration tail gas does not meet the environmental protection requirement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a waste acid concentration tail gas absorption device so as to solve the problems in the background art.
In order to achieve the above purpose, the invention provides a waste acid concentration tail gas absorbing device, which comprises a vacuum tank for collecting tail gas in a concentrated acid concentration system, wherein the vacuum tank is connected with an air inlet end of a dry screw vacuum pump through a first connecting pipe, an air outlet end of the dry screw vacuum pump is connected with an air inlet end of a tail gas condenser through a second connecting pipe, a first blow-down pipe is arranged at the top of the tail gas condenser, the upper end of the first blow-down pipe is connected with a second blow-down pipe through a stop valve, the first blow-down pipe is connected with an ejector through a third connecting pipe, the ejector is arranged at the upper end of the tail gas absorbing tank for storing alkali liquor, the outer surface of the lower end of the tail gas absorbing tank is connected with a liquid inlet end of a tail gas circulating pump through a pipeline, the liquid outlet end of the tail gas circulating pump is communicated with the ejector through a liquid conveying pipe, an exhaust pipe connected with the second blow-down pipe is arranged on the upper surface of the tail gas absorbing tank, and a collecting piece for collecting leaked liquid is arranged at the lower side of the tail gas circulating pump.
Further, the collecting piece comprises a bottom box, the bottom box is arranged right below the tail gas absorbing tank, a bracket is arranged at the bottom in the bottom box, and the tail gas circulating pump is arranged on the upper surface of the bracket.
Further, the bottom of the tail gas absorbing tank is fixedly connected with a supporting plate, four supporting rods are uniformly arranged on the lower surface of the supporting plate, and the lower ends of the supporting rods are fixed at the bottom of the bottom box.
Further, the upper position is equipped with vertical arrangement's uide bushing in the end box, uide bushing outer surface fixedly connected with L type pole, L type pole other end and end box fixed connection, sliding mounting has vertical arrangement's ejector pin in the uide bushing, the kicking block is installed to the ejector pin lower extreme, the ejector pin upside is equipped with travel switch, travel switch installs at tail gas absorption tank outer surface, travel switch passes through wire and air pump electric connection, the air pump is installed at the liquid storage pot outer surface, the air pump is given vent to anger the end and is installed the gas-supply pipe, the one end that the air pump was kept away from to the air pump extends to siphon mouth of pipe department, the siphon upper end is installed in liquid storage pot upper end surface and is extended to the liquid storage pot, the siphon lower extreme extends to the bottom in the end box.
Further, tail gas absorption jar surface fixedly connected with extension board, travel switch installs at the extension board lower surface, liquid storage jar upper end surface mounting has the carrier plate, the air pump is installed at the carrier plate upper surface.
Further, one end of the siphon pipe, which is positioned in the liquid storage tank, is provided with a wide-mouth cylinder, the wide-mouth cylinder is positioned right below the gas pipe, and the diameter of the wide-mouth cylinder is larger than that of the siphon pipe.
Further, the upper end of the ejector rod is fixedly connected with a disc head, the disc head is arranged right below the travel switch, and the disc head and the ejector rod are of an integrated structure.
Further, a blind hole is formed in the position, on the upper surface of the floating block, where the ejector rod is mounted, and the lower end of the ejector rod is fixed in the blind hole.
Further, the outer surface of the upper end of the tail gas absorption tank is provided with a liquid injection pipe, one end of the liquid injection pipe, which is far away from the tail gas absorption tank, is provided with a ball valve for connecting an alkali liquor conveying pipeline, and the outer surface of the lower end of the tail gas absorption tank is provided with a drain valve.
Further, a drain valve is arranged at the lower end of the tail gas condenser, and the drain valve is connected with a recovery tank for collecting condensation recovery liquid through a pipeline and is communicated with the recovery tank.
According to another object of the invention, there is provided a method for treating waste acid concentrated tail gas, comprising the steps of:
collecting the waste gas from the waste acid concentration system and storing the waste gas in a storage device;
pumping the waste gas from the top of the vacuum tank to a condensing device for condensation;
judging whether the condensed waste gas meets the emptying standard;
if so, evacuating the condensed exhaust gas;
if not, conveying the condensed exhaust gas to an exhaust gas absorption treatment device;
wherein, the top of the tail gas absorption treatment device is sprayed with alkali liquor.
Further, the treatment method also comprises the step of pumping the waste gas treated by the sprayed alkali liquor back to the tail gas absorption tank.
Further, the condensed waste gas and the waste gas treated by the sprayed alkali liquor are input into the tail gas absorption tank from the top.
Further, the condensed exhaust gas and the exhaust gas treated by the sprayed alkali liquor are sprayed into the exhaust gas absorption tank through an ejector.
Further, the alkali solution is 10-20% by mass, preferably, the alkali solution is selected from sodium hydroxide solution and potassium hydroxide solution.
Further, the treatment method also comprises the step of exhausting the waste gas discharged from the top of the tail gas absorption tank after being treated by the sprayed alkali liquor.
The invention has the beneficial effects that:
1. the waste acid concentration tail gas absorbing device adopts the dry screw vacuum pump, thereby avoiding waste water generation, reducing waste water treatment cost, having lower motor power compared with the water ring vacuum pump, having energy saving effect, installing the tail gas condenser by exhausting the vacuum pump, being capable of condensing and recycling part of waste gas, reducing consumption, and discharging the rest waste gas after being neutralized by using 10% -20% alkali liquor vacuum ejector, thereby avoiding smoke and gas.
2. According to the waste acid concentration tail gas absorption device, when the leakage condition occurs at the air inlet end or the air outlet end of the tail gas circulating pump due to sealing failure, leaked alkali liquor drops into the bottom box, so that concentrated collection of the leaked alkali liquor is realized, and the leaked alkali liquor is prevented from random dropping.
3. According to the waste acid concentration tail gas absorbing device, as the alkali liquor collected in the bottom box is increased, the floating block drives the ejector rod to move upwards along the guide sleeve, after the upper end of the ejector rod presses the contact part of the travel switch, the travel switch is closed, a circuit of the air pump is further connected, the air pump works to convey air into the air pipe after being electrified, the air in the air pipe flows out from one end of the siphon pipe, which is positioned in the liquid storage tank, so that pressure difference is generated at two ends of the siphon pipe, alkali liquor in the bottom box flows into the liquid storage tank along the siphon pipe under the action of the pressure difference, alkali liquor in the bottom box is transferred, and overflow of the alkali liquor in the bottom box from the bottom box due to untimely cleaning is prevented.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will become apparent by reference to the drawings and the following detailed description.
Drawings
In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.
FIG. 1 is a schematic diagram of a waste acid concentration tail gas absorber according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the assembly of a top rod and a bottom box in a waste acid concentration tail gas absorbing device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the assembly of a siphon, a gas pipe and a liquid storage tank in a waste acid concentration tail gas absorbing device according to an embodiment of the present invention;
in the figure: 1-vacuum tank, 2-first connecting pipe, 3-dry screw vacuum pump, 4-second connecting pipe, 5-tail gas condenser, 6-drain valve, 7-first drain pipe, 8-stop valve, 9-second drain pipe, 10-third connecting pipe, 11-blast pipe, 12-liquid filling pipe, 13-tail gas absorbing tank, 14-ejector, 15-gas pipe, 16-support plate, 17-travel switch, 18-support plate, 19-blow-down valve, 20-stay bar, 21-bottom box, 22-ejector pin, 23-support bracket, 24-tail gas circulating pump, 25-siphon, 26-gas pipe, 27-gas pump, 28-support plate, 29-liquid storage tank, 30-guide sleeve, 31-floating block, 32-L-type rod, 33-disc head, 34-wide-mouth cylinder.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
Referring to fig. 1 to 3, the invention provides a waste acid concentration tail gas absorbing device, which comprises a vacuum tank 1 for collecting tail gas in a concentrated acid concentration system, wherein the vacuum tank 1 is connected with an air inlet end of a dry screw vacuum pump 3 through a first connecting pipe 2, and an air outlet end of the dry screw vacuum pump 3 is connected with an air inlet end of a tail gas condenser 5 through a second connecting pipe 4. The top of the tail gas condenser 5 is provided with a first blow-down pipe 7, and the upper end of the first blow-down pipe 7 is connected with a second blow-down pipe 9 through a stop valve 8. The first blow-down pipe 7 is connected with an ejector 14 through a third connecting pipe 10, and the ejector 14 is arranged at the upper end of an exhaust gas absorption tank 13 for storing alkali liquor. The outer surface of the lower end of the tail gas absorbing tank 13 is connected with the air inlet end of a tail gas circulating pump 24 through a pipeline, and the air outlet end of the tail gas circulating pump 24 is communicated with the ejector 14 through a gas pipe 15. The exhaust pipe 11 connected with the second blow-down pipe 9 is arranged on the upper surface of the exhaust gas absorption tank 13. The concentrated tail gas absorbing device of waste acid of this application is through changing the water ring vacuum pump into dry-type screw vacuum pump 3, stops waste water production, reduces waste water treatment expense to change to behind the dry-type screw vacuum pump 3, the motor power of device reduces, reaches energy-conserving effect, and vacuum pump exhaust installs tail gas condenser 5, and partial waste gas is retrieved in the condensation, retrieves partial material, reduces the consumption. The residual waste gas is neutralized by an alkali liquor vacuum ejector 14 with the mass percent of 10-20% and then discharged, thus avoiding the nitrate smoke. Wherein, the alkali liquor can be sodium hydroxide solution and/or potassium hydroxide solution.
As one embodiment of the invention, the bottom box 21 for collecting leaked liquid is arranged at the lower side of the tail gas circulating pump 24, the bottom box 21 is arranged right below the tail gas absorbing tank 13, a bracket 23 is arranged at the inner bottom of the bottom box 21, the tail gas circulating pump 24 is arranged on the upper surface of the bracket 23, the bottom of the tail gas absorbing tank 13 is fixedly connected with a supporting plate 18, four supporting rods 20 are uniformly arranged on the lower surface of the supporting plate 18, the lower ends of the supporting rods 20 are fixed at the inner bottom of the bottom box 21, the supporting rods 20 and the supporting plate 18 play a role of supporting the tail gas circulating pump 24 together, and when the liquid leakage condition occurs at the liquid inlet end or the liquid outlet end of the tail gas circulating pump 24 due to sealing failure, leaked alkali liquid drops fall into the bottom box 21, so that concentrated collection of leaked alkali liquid is realized, and random dripping of leaked alkali liquid is prevented.
As an embodiment of the invention, a guide sleeve 30 is arranged vertically at the upper position in the bottom box 21, and an L-shaped rod 32 is fixedly connected to the outer surface of the guide sleeve 30. The other end of the L-shaped rod 32 is fixedly connected with the bottom box 21, a vertically arranged ejector rod 22 is arranged in a sliding manner in the guide sleeve 30, a floating block 31 is arranged at the lower end of the ejector rod 22, and a travel switch 17 is arranged on the upper side of the ejector rod 22. The outer surface of the tail gas absorption tank 13 is fixedly connected with a support plate 16, a travel switch 17 is arranged on the lower surface of the support plate 16, and the support plate 16 provides an installation carrier for the travel switch 17. The travel switch 17 is electrically connected with the air pump 27 through a wire, the carrier plate 28 is arranged on the outer surface of the upper end of the liquid storage tank 29, the air pump 27 is arranged on the upper surface of the carrier plate 28, the carrier plate 28 provides an installation carrier for the air pump 27, the air outlet end of the air pump 27 is provided with the air pipe 26, one end of the air pipe 26, far away from the air pump 27, extends to the pipe orifice of the siphon pipe 25, and the upper end of the siphon pipe 25 is arranged on the outer surface of the upper end of the liquid storage tank 29 and extends into the liquid storage tank 29. The lower end of the siphon tube 25 extends to the inner bottom of the bottom box 21, and the floating block 31 drives the ejector rod 22 to move upwards along the guide sleeve 30 along with the increase of alkali liquor collected in the bottom box 21. When the upper end of the ejector rod 22 presses the contact part of the travel switch 17, the travel switch 17 is closed, the circuit of the air pump 27 is further connected, the air pump 27 works to convey air into the air pipe 26 after being electrified, and the air in the air pipe 26 flows out from one end of the siphon pipe 25, which is positioned in the liquid storage tank 29, so that pressure difference is generated at two ends of the siphon pipe 25, alkali liquor in the bottom box 21 flows into the liquid storage tank 29 along the siphon pipe 25 under the action of the pressure difference, alkali liquor in the bottom box 21 is transferred, and the alkali liquor in the bottom box 21 is prevented from overflowing from the bottom box 21 due to untimely cleaning.
As one embodiment of the invention, the end of the siphon tube 25 in the liquid storage tank 29 is provided with a wide-mouth tube 34, the wide-mouth tube 34 is positioned right below the gas pipe 26, the diameter of the wide-mouth tube 34 is larger than that of the siphon tube 25, and the design of the wide-mouth tube 34 increases the cross section of the end of the siphon tube 25 in the liquid storage tank 29.
As one embodiment of the invention, the upper end of the ejector rod 22 is fixedly connected with the disc head 33, the disc head 33 is arranged under the travel switch 17, the disc head 33 and the ejector rod 22 are of an integrated structure, the disc head 33 increases the contact area of the ejector rod 22 and the contact part of the travel switch 17, a blind hole is formed in the position of the upper surface of the floating block 31 where the ejector rod 22 is mounted, the lower end of the ejector rod 22 is fixed in the blind hole, and the connection stability of the ejector rod 22 and the floating block 31 is improved.
As one embodiment of the invention, the outer surface of the upper end of the tail gas absorbing tank 13 is provided with the liquid injection pipe 12, one end of the liquid injection pipe 12 far away from the tail gas absorbing tank 13 is provided with a ball valve for connecting an alkali liquor conveying pipeline, the outer surface of the lower end of the tail gas absorbing tank 13 is provided with a blow-down valve 19, the ball valve is connected to the alkali liquor conveying pipeline, and alkali liquor in the alkali liquor conveying pipeline flows into the tail gas absorbing tank 13 through the liquid injection pipe 12 after the ball valve is opened, so that alkali liquor is supplemented into the tail gas absorbing tank 13.
As an embodiment of the invention, a drain valve 6 is arranged at the lower end of the tail gas condenser 5, the drain valve 6 is communicated with a recovery tank for collecting condensed recovery liquid through a pipeline, and after the drain valve 6 is opened, the condensed recovery liquid in the tail gas condenser 5 flows into the recovery tank through the pipeline.
According to the specific implementation mode, the water ring vacuum pump is replaced by the dry screw vacuum pump 3, waste water is prevented from being generated, waste water treatment cost is reduced, motor power is reduced after the water ring vacuum pump is replaced by the dry screw vacuum pump 3, an energy-saving effect is achieved, the vacuum pump is exhausted, the tail gas condenser 5 is installed, part of waste gas is condensed and recovered, part of materials are recovered, consumption is reduced, and the residual waste gas is discharged after being neutralized by using the 10% -20% alkali liquor vacuum ejector 14, so that smoke is prevented from being caused.
When the leakage condition occurs at the liquid inlet end or the liquid outlet end of the tail gas circulating pump 24 due to sealing failure, leaked alkali liquid drops fall into the bottom box 21, so that concentrated collection of leaked alkali liquid is realized, the leaked alkali liquid drops fall randomly, along with the increase of the collected alkali liquid in the bottom box 21, the floating block 31 drives the ejector rod 22 to move upwards along the guide sleeve 30, when the upper end of the ejector rod 22 presses the contact part of the travel switch 17, the travel switch 17 is closed, the circuit of the air pump 27 is further connected, the air pump 27 works to convey air into the air pipe 26 after being electrified, the air in the air pipe 26 flows out from one end of the siphon pipe 25 at the liquid storage tank 29, and therefore pressure difference is generated at two ends of the siphon pipe 25, the alkali liquid in the bottom box 21 flows into the liquid storage tank 29 along the siphon pipe 25 under the action of the pressure difference, so that the alkali liquid in the bottom box 21 is transferred, and the alkali liquid in the bottom box 21 is prevented from overflowing from the bottom box 21 due to untimely cleaning.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (16)
1. The utility model provides a concentrated tail gas absorbing device of spent acid, includes vacuum tank (1) that are arranged in collecting concentrated acid concentrated system tail gas, its characterized in that, vacuum tank (1) is connected the inlet end of dry-type screw vacuum pump (3) through first connecting pipe (2), the inlet end of tail gas condenser (5) is connected through second connecting pipe (4) to the end of giving vent to anger of dry-type screw vacuum pump (3), first blow-down pipe (7) are installed at the top of tail gas condenser (5), first blow-down pipe (7) upper end is connected with second blow-down pipe (9) through stop valve (8), ejector (14) are connected through third connecting pipe (10) to first blow-down pipe (7), ejector (14) are installed in tail gas absorbing tank (13) upper end that are used for storing alkali lye, tail gas absorbing tank (13) lower extreme surface is connected with the inlet end of tail gas circulating pump (24) through pipe (15) and ejector (14), absorbing tank (13) are equipped with exhaust pipe (24) side and are used for collecting drain down in the collection.
2. The waste acid concentration tail gas absorbing device according to claim 1, wherein the collecting piece comprises a bottom box (21), the bottom box (21) is arranged right below the tail gas absorbing tank (13), a bracket (23) is arranged at the bottom of the bottom box (21), and the tail gas circulating pump (24) is arranged on the upper surface of the bracket (23).
3. The waste acid concentration tail gas absorbing device according to claim 2, wherein the bottom of the tail gas absorbing tank (13) is fixedly connected with a supporting plate (18), four supporting rods (20) are uniformly arranged on the lower surface of the supporting plate (18), and the lower ends of the supporting rods (20) are fixed at the inner bottom of the bottom box (21).
4. The waste acid concentration tail gas absorbing device according to claim 2, wherein a guide sleeve (30) which is vertically arranged is arranged at the upper position in the bottom box (21), an L-shaped rod (32) is fixedly connected to the outer surface of the guide sleeve (30), the other end of the L-shaped rod (32) is fixedly connected with the bottom box (21), a vertically arranged ejector rod (22) is slidably arranged in the guide sleeve (30), a floating block (31) is arranged at the lower end of the ejector rod (22), a travel switch (17) is arranged at the upper side of the ejector rod (22), the travel switch (17) is arranged on the outer surface of the tail gas absorbing tank (13), the travel switch (17) is electrically connected with an air pump (27) through a wire, the air pump (27) is arranged on the outer surface of the liquid storage tank (29), an air outlet end of the air pump (27) is provided with an air pipe (26), one end of the air pipe (26) far away from the air pump (27) extends to a siphon pipe opening, the upper end of the siphon (25) is arranged on the outer surface of the liquid storage tank (29) and extends to the inner bottom of the bottom box (21).
5. The waste acid concentration tail gas absorbing device according to claim 4, wherein the tail gas absorbing tank (13) is fixedly connected with a support plate (16) on the outer surface, the travel switch (17) is arranged on the lower surface of the support plate (16), the carrier plate (28) is arranged on the outer surface of the upper end of the liquid storage tank (29), and the air pump (27) is arranged on the upper surface of the carrier plate (28).
6. The waste acid concentration tail gas absorbing device as claimed in claim 4, wherein one end of the siphon tube (25) positioned in the liquid storage tank (29) is provided with a wide-mouth cylinder (34), the wide-mouth cylinder (34) is positioned right below the gas transmission pipe (26), and the diameter of the wide-mouth cylinder (34) is larger than that of the siphon tube (25).
7. The waste acid concentration tail gas absorbing device according to claim 4, wherein the upper end of the ejector rod (22) is fixedly connected with a disc head (33), the disc head (33) is arranged right below the travel switch (17), and the disc head (33) and the ejector rod (22) are of an integrated structure.
8. The waste acid concentration tail gas absorbing device according to claim 4, wherein a blind hole is formed in the upper surface of the floating block (31) at a position where the ejector rod (22) is mounted, and the lower end of the ejector rod (22) is fixed in the blind hole.
9. The waste acid concentration tail gas absorbing device according to claim 1, wherein a liquid injection pipe (12) is arranged on the outer surface of the upper end of the tail gas absorbing tank (13), a ball valve for connecting an alkali liquor conveying pipeline is arranged at one end, far away from the tail gas absorbing tank (13), of the liquid injection pipe (12), and a blow-down valve (19) is arranged on the outer surface of the lower end of the tail gas absorbing tank (13).
10. The waste acid concentration tail gas absorbing device according to claim 1, wherein a liquid discharge valve (6) is arranged at the lower end of the tail gas condenser (5), and the liquid discharge valve (6) is connected with a recovery tank for collecting condensation recovery liquid through a pipeline.
11. The method for treating the waste acid concentrated tail gas is characterized by comprising the following steps of:
collecting the waste gas from the waste acid concentration system and storing the waste gas in a storage device;
pumping the waste gas from the top of the vacuum tank to a condensing device for condensation;
judging whether the condensed waste gas meets the emptying standard;
if so, evacuating the condensed exhaust gas;
if not, conveying the condensed exhaust gas to an exhaust gas absorption treatment device;
wherein, the top of the tail gas absorption treatment device is sprayed with alkali liquor.
12. The process of claim 11, further comprising pumping the spray lye treated exhaust back to the exhaust gas absorber tank.
13. The process according to claim 11 or 12, characterized in that the condensed exhaust gas and the spray lye treated exhaust gas are fed into the exhaust gas absorption tank from the top.
14. The process of claim 13, wherein the condensed exhaust gas and the spray lye treated exhaust gas are injected into the exhaust gas absorber tank by an injector.
15. The process according to claim 11 or 12, characterized in that the lye is 10-20% by mass, preferably the lye is selected from sodium hydroxide solution and potassium hydroxide solution.
16. A treatment method according to claim 11 or 12, characterized in that the exhaust gases discharged from the top of the tail gas absorption tank after the treatment with the spray lye are evacuated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395947.3A CN116139643A (en) | 2021-11-23 | 2021-11-23 | Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395947.3A CN116139643A (en) | 2021-11-23 | 2021-11-23 | Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116139643A true CN116139643A (en) | 2023-05-23 |
Family
ID=86356598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111395947.3A Pending CN116139643A (en) | 2021-11-23 | 2021-11-23 | Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116139643A (en) |
-
2021
- 2021-11-23 CN CN202111395947.3A patent/CN116139643A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102512937B (en) | Method for recycling hydrogen sulfide waste gas | |
| CN104587799A (en) | Device and method for processing complex organic waste gas components and recycling resources | |
| CN116139643A (en) | Waste acid concentrated tail gas absorption device and waste acid concentrated tail gas treatment method | |
| CN212338932U (en) | Integrated monomer gas filling device of improved generation industry cutting natural gas CNG | |
| CN209093054U (en) | A kind of PA6 polymerization pelletizing gas absorption reclamation set | |
| CN216223653U (en) | Concentrated tail gas absorbing device of spent acid | |
| CN109647160A (en) | Method for treating tail gas of ammonium sulfate mother liquor circulation tank | |
| CN101428191B (en) | Method for improving washing efficiency for tail gas from wet-process phosphoric acid manufacture | |
| CN114272635B (en) | Acid gas treatment device for water bath internalization of lead-acid battery | |
| CN209985184U (en) | Alkaline washing tower capable of efficiently treating waste gas | |
| CN210560767U (en) | Acid etching circulation regeneration system with chlorine absorption tower of recycling | |
| CN208757285U (en) | A kind of recyclable device for formic acid vapor in acylation reaction | |
| CN113058388A (en) | Bubble tower device for treating methanol waste gas and using method | |
| CN113800700A (en) | High-efficient waste liquid ammonia still | |
| CN211677011U (en) | Fermentation tail gas absorbs odour removal device | |
| CN213824137U (en) | Alkali seal device for recovering waste sodium hypochlorite acetylene gas | |
| CN216677674U (en) | Tail gas treatment system of intermediate storage bin in PTA production device | |
| CN220531210U (en) | Tail gas filtering device for chemical vapor deposition furnace | |
| CN216259991U (en) | Chlorine absorption device for extracting noble metals | |
| CN215027474U (en) | Gaseous phosphoric acid recovery device in activated carbon production process | |
| CN109847397A (en) | The device of recovery rate is improved in a kind of triacetyl glycerine production process | |
| CN208553713U (en) | A kind of tail gas absorber | |
| CN216260040U (en) | Multistage chemical industry tail gas processing apparatus | |
| CN220142631U (en) | Recycling system for amine-containing condensate of steam injector | |
| CN215138420U (en) | Contain gold high temperature alkali gas recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |