CN210251798U - Waste gas absorption device - Google Patents
Waste gas absorption device Download PDFInfo
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- CN210251798U CN210251798U CN201921112911.8U CN201921112911U CN210251798U CN 210251798 U CN210251798 U CN 210251798U CN 201921112911 U CN201921112911 U CN 201921112911U CN 210251798 U CN210251798 U CN 210251798U
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- waste gas
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 178
- 239000002912 waste gas Substances 0.000 title claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 157
- 239000007789 gas Substances 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 112
- 238000003860 storage Methods 0.000 description 53
- 239000002253 acid Substances 0.000 description 27
- 239000003513 alkali Substances 0.000 description 17
- 239000002585 base Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a waste gas absorbing device. Specifically, the utility model provides a waste gas absorption device, which comprises an absorption tank, a buffer tank and a balance pipe; the absorption tank is provided with an exhaust pipe, a liquid inlet pipe and a first liquid outlet pipe, and the first liquid outlet pipe is provided with a first valve and a second valve; the buffer tank is provided with a waste gas absorption pipe, a waste gas outlet pipe, a second liquid outlet pipe and a gas inlet pipe, the gas inlet pipe penetrates through the tank wall at the top of the buffer tank and enters the tank cavity of the buffer tank, and the waste gas outlet pipe penetrates through the tank wall at the top of the absorption tank and enters the tank cavity of the absorption tank; one end of the balance pipe is closed, the other end of the balance pipe is communicated with a first liquid outlet pipe arranged on the absorption tank, a connection point of the balance pipe and the first liquid outlet pipe is positioned between the first valve and the second valve, and a second liquid outlet pipe on the buffer tank is communicated with the balance pipe. Waste gas absorbing device can enough avoid the waste gas of production directly to discharge in the atmosphere, can avoid waste gas absorption liquid suck-back again.
Description
Technical Field
The utility model relates to a waste gas purification field, specifically, the utility model relates to a waste gas absorption device.
Background
With the development of society, attention is paid to how to reduce and alleviate the emission of pollutants in the industrial production process, and especially, the method has important significance on how to effectively purify the waste gas pollution. It is known that exhaust gases are easily diffused and the circulation through the atmosphere can cause large-area pollution, which adversely affects the health of people.
In exhaust gas pollution, pollution caused by volatile acids and bases is very serious, and particularly, the volatile and corrosive acids and bases cause strong irritation to respiratory tracts of human bodies, so that respiratory diseases such as respiratory obstruction, asthma and the like occur. When a volatile acid (such as hydrochloric acid) or a volatile base (such as ammonia water) is required to be used as an industrial raw material in a large production process, the volatile acid or the volatile base needs to be added into the liquid storage tank for standby, and when the production needs, the volatile acid or the volatile base in the liquid storage tank flows out through the liquid outlet pipe of the liquid storage tank, however, in the process of adding the volatile acid or the volatile base into the liquid storage tank and storing the volatile acid or the volatile base in the liquid storage tank, because the volatile acid or the volatile base has volatility, the gas outlet pipe arranged on the liquid storage tank needs to be opened so as to discharge the volatile acid (such as hydrochloric acid) or the volatile base (such as ammonia water) in time, thereby avoiding the danger caused by the pressure increase in the liquid storage tank due to the fact. In the existing purification device, in order to avoid the pollution of acid or alkali caused by directly discharging volatile acid such as hydrochloric acid or the like or volatile alkali such as ammonia water or the like into the atmosphere, the volatile acid or alkali directly contacts with an absorption liquid (such as water or alkali liquid or acid liquid) through an air outlet pipe on a liquid storage tank, so that most of the volatile acid or alkali is absorbed by the absorption liquid, thereby effectively avoiding the pollution of acid or alkali caused by directly discharging the volatile acid or alkali into the atmosphere. Therefore, how to ensure that the volatile acid or alkali is prevented from being directly discharged into the atmosphere in the process of adding the volatile acid or alkali into the liquid storage tank and in the process of storing the volatile acid or alkali in the liquid storage tank, and simultaneously, when the volatile acid or alkali in the liquid storage tank needs to be discharged through the liquid outlet pipe in the production process, the absorption liquid is prevented from being sucked back into the liquid storage tank to cause the raw materials in the liquid storage tank to be polluted by the absorption liquid, which is a current problem.
Therefore, there is a need in the art to develop an exhaust gas absorption device that can prevent the generated exhaust gas (such as volatile acid or alkali) from being directly discharged into the atmosphere, and can also prevent the exhaust gas absorption liquid from being sucked back.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can enough avoid the waste gas of production directly to discharge in the atmosphere, can avoid the waste gas absorbing device of waste gas absorption liquid suck-back again.
The utility model provides a waste gas absorbing device, which comprises an absorbing tank 1, a buffer tank 2 and a balance pipe 3;
the absorption tank is provided with an exhaust pipe 4, a liquid inlet pipe 5 and a first liquid outlet pipe 6, and the first liquid outlet pipe is provided with a first valve 7 and a second valve 8;
the buffer tank is provided with a waste gas absorption pipe 9, a waste gas outlet pipe 10, a second liquid outlet pipe 11 and an air inlet pipe 12, the waste gas absorption pipe and the waste gas outlet pipe are arranged at the top of the buffer tank, the second liquid outlet pipe is arranged at the bottom of the buffer tank, the air inlet pipe penetrates through the tank wall at the top of the buffer tank to enter the tank cavity of the buffer tank, and the waste gas outlet pipe penetrates through the tank wall at the top of the absorption tank to enter the tank cavity of the absorption tank;
the one end of balance pipe is confined, the other end of balance pipe with first drain pipe that is equipped with on the absorption tank communicates with each other, balance pipe with the tie point of first drain pipe is located between first valve and the second valve, second drain pipe on the buffer tank with balance pipe communicates with each other.
In another preferred example, the number of the buffer tanks is 1 or more.
In another preferred example, the number of the buffer tanks is 1-8.
In another preferred example, the number of the absorption tanks is 1.
In another preferred example, the exhaust gas absorption pipe is provided with a gas filter.
In another preferred embodiment, the gas filter is a membrane filter.
In another preferred example, the distance between the nozzle of the waste gas outlet pipe in the tank cavity of the absorption tank and the bottom of the tank cavity of the absorption tank is 1/3-1/2 of the height of the tank cavity of the absorption tank.
In another preferred example, the distance between the nozzle of the air inlet pipe in the tank cavity of the buffer tank and the bottom of the tank cavity of the buffer tank is 1/3-1/2 of the height of the tank cavity of the buffer tank.
In another preferred example, the absorption tank and the buffer tank are on the same horizontal plane by taking the horizontal plane as a reference; or
And the height of the buffer tank is higher than that of the absorption tank on the basis of a horizontal plane.
In another preferred example, the volume of the buffer tank is larger than the volume of the absorption tank.
In another preferred embodiment said second outlet pipe is provided with a third valve 13.
In another preferred example, the first liquid outlet pipe is arranged at the bottom of the absorption tank.
In another preferred example, the volume of the buffer tank is 2-5 times of the volume of the absorption tank.
In another preferred example, the absorption tank and/or the buffer tank is/are an absorption tank containing absorption liquid (such as water, alkali liquor and acid liquor).
In another preferred example, the absorption liquid in the absorption tank and the absorption liquid in the buffer tank are the same or different absorption liquids.
In another preferred example, the height of the absorption liquid in the absorption tank is higher than the height of the pipe orifice of the waste gas outlet pipe in the tank cavity of the absorption tank on the basis of the horizontal plane.
In another preferred example, the height of the absorption liquid in the buffer tank is higher than the height of the pipe orifice of the air inlet pipe in the tank cavity in the buffer tank on the basis of the horizontal plane.
In another preferred example, the air inlet pipe is connected with the top tank wall of the buffer tank in a sealing mode.
In another preferred example, the exhaust pipe is arranged at the top of the absorption tank.
In another preferred embodiment, the first valve, the second valve and/or the third valve is a liquid valve.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.
Drawings
Fig. 1 is a schematic structural view of an exhaust gas absorbing apparatus according to a preferred embodiment of the present invention.
In the drawings, each number represents:
1 is the absorption tank, 2 is the buffer tank, 3 is the balance pipe, 4 is the blast pipe, 5 is the feed liquor pipe, 6 is first drain pipe, 7 is first valve, 8 is the second valve, 9 is the waste gas absorption pipe, 10 is the waste gas outlet duct, 11 is the second drain pipe, 12 is the intake pipe and 13 is the third valve.
Detailed Description
The present inventors have made extensive and intensive studies and have unexpectedly developed an exhaust gas absorbing apparatus in which the inlet pipe penetrates the top wall of the surge tank into the cavity of the surge tank, the exhaust gas outlet pipe penetrates the top wall of the surge tank into the cavity of the surge tank, and the connection point of the balance pipe and the first outlet pipe is located between the first valve and the second valve. Waste gas absorbing device can enough avoid waste gases such as the volatile acid or alkali of production directly to discharge in the atmosphere, can avoid absorbing liquid suck-back again. On this basis, the inventors have completed the present invention.
Term(s) for
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As used herein, the terms "comprising," "including," and "containing" are used interchangeably and include not only open-ended definitions, but also semi-closed and closed-ended definitions. In other words, the term includes "consisting of … …", "consisting essentially of … …".
As used herein, the terms "upper", "top", "bottom", and the like refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience in describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The term "plurality" as used herein refers to two and more, including two, such as 2-8.
As used herein, the terms "first," "second," and "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," and "third," can explicitly or implicitly include one or more of the features.
As used herein, the term "pipe" also becomes a conduit in the present invention, the exhaust pipe, the first drain pipe, the second drain pipe, the liquid inlet pipe, the drain pipe, the gas inlet pipe, the exhaust gas absorption pipe, the exhaust gas outlet pipe and the balance pipe are all a conduit.
As used herein, the terms "exhaust gas absorbing device" and "device" are used interchangeably.
For the purpose of illustration, the invention is further described below with reference to fig. 1, in which it is to be understood that the drawings are for illustrative purposes only and do not limit the scope of the invention. For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Exhaust gas absorption device
The utility model provides a waste gas absorption device, which comprises an absorption tank 1, a buffer tank 2 and a balance pipe 3;
the absorption tank is provided with an exhaust pipe 4, a liquid inlet pipe 5 and a first liquid outlet pipe 6, and the first liquid outlet pipe is provided with a first valve 7 and a second valve 8;
the buffer tank is provided with a waste gas absorption pipe 9, a waste gas outlet pipe 10, a second liquid outlet pipe 11 and an air inlet pipe 12, the waste gas absorption pipe and the waste gas outlet pipe are arranged at the top of the buffer tank, the second liquid outlet pipe is arranged at the bottom of the buffer tank, the air inlet pipe penetrates through the tank wall at the top of the buffer tank to enter the tank cavity of the buffer tank, and the waste gas outlet pipe penetrates through the tank wall at the top of the absorption tank to enter the tank cavity of the absorption tank;
the one end of balance pipe is confined, the other end of balance pipe with first drain pipe that is equipped with on the absorption tank communicates with each other, balance pipe with the tie point of first drain pipe is located between first valve and the second valve, second drain pipe on the buffer tank with balance pipe communicates with each other.
By taking volatile hydrochloric acid as an example, when volatile acid (hydrochloric acid) is needed as a raw material in a large-scale production process, the waste gas absorption device can not only avoid the generated volatile acid from being directly discharged into the atmosphere, but also avoid the absorption liquid from being sucked backwards, and the basic principle is mainly as follows:
1. the waste gas absorption pipe arranged at the top of the buffer tank is communicated with an air outlet pipe on the hydrochloric acid liquid storage tank, the first valve is opened, the second valve is closed (if the third valve is arranged, the third valve is opened at the same time), absorption liquid (such as water or alkali liquor) is added into the absorption tank through the liquid inlet pipe, the absorption liquid simultaneously enters the buffer tank through the balance pipe, and when the height of the absorption liquid in the tank cavity of the absorption tank is higher than that of the pipe orifice of the waste gas outlet pipe in the tank cavity of the absorption tank and that of the absorption liquid in the buffer tank is higher than that of the pipe orifice of the tank cavity air inlet pipe of the buffer tank, the addition of the absorption liquid is stopped (if the third valve is arranged, the third valve can be;
2. when volatile hydrochloric acid is needed as a raw material in a large production process, hydrochloric acid is firstly added into a hydrochloric acid liquid storage tank for later use, in the process of adding hydrochloric acid into the hydrochloric acid liquid storage tank, the volatile hydrochloric acid enters a buffer tank through a waste gas absorption pipe and then contacts with absorption liquid in the absorption tank through a waste gas outlet pipe arranged on the buffer tank, and the absorption liquid in the buffer tank and the absorption tank absorbs the volatile hydrochloric acid, so that the hydrochloric acid is prevented from volatilizing into the atmosphere and polluting the air. In addition, hydrochloric acid is added into the liquid storage tank, and the volatile hydrochloric acid can be discharged from the liquid storage tank in time in the storage process of the liquid storage tank, so that the danger caused by the increase of the pressure in the liquid storage tank due to the continuous accumulation of the volatile hydrochloric acid in the hydrochloric acid liquid storage tank can be avoided.
3. When hydrochloric acid raw materials are needed in a large production process, hydrochloric acid in a hydrochloric acid liquid storage tank flows out through a liquid outlet pipe of the liquid storage tank and is fed, so that the air pressure in the hydrochloric acid liquid storage tank and a buffer tank communicated with the hydrochloric acid liquid storage tank is reduced, at the moment, the air pressure in the absorption tank is larger than the air pressure in the liquid storage tank and the buffer tank communicated with the liquid storage tank, absorption liquid in the absorption tank slightly sucks back, at the moment, outside air can enter the buffer tank through an air inlet pipe on the buffer tank, so that the negative pressure in the buffer tank and the hydrochloric acid liquid storage tank communicated with the buffer tank is relieved, the absorption liquid in the absorption tank is prevented from sucking back to the buffer tank, the absorption liquid in the buffer tank is prevented from sucking back to the liquid storage tank, and meanwhile, the hydrochloric acid in the liquid storage tank can smoothly flow out due to the relief of;
4. when stopping hydrochloric acid outflow in the hydrochloric acid liquid storage tank and throwing the material or add hydrochloric acid to the liquid storage tank once more, because the volatilization of hydrochloric acid for the atmospheric pressure in hydrochloric acid liquid storage tank and the communicating buffer tank of hydrochloric acid liquid storage tank is greater than the absorption tank, volatile hydrochloric acid gets into the buffer tank through the waste gas absorption tube once more, then contacts with the absorption liquid in the absorption tank through the waste gas outlet duct that is equipped with on the buffer tank, and the absorption liquid will volatilize hydrochloric acid and absorb, thereby avoid hydrochloric acid to volatilize to the atmosphere.
In a preferred embodiment of the present invention, the number of the buffer tanks is 1 or more. Preferably, the number of the buffer tanks is 1-8.
In another preferred example, the number of the absorption tanks is 1.
In another preferred example, the exhaust gas absorption pipe is provided with a gas filter. When hydrochloric acid in the liquid storage tank flows out through the liquid outlet pipe and is fed, the external air enters the liquid storage tank through the buffer tank, and the gas filter can further filter the air, so that the pollution of the external air to the liquid storage tank is further effectively avoided. In another preferred example, the air filter is a membrane filter.
In another preferred example, the distance between the nozzle of the waste gas outlet pipe in the tank cavity of the absorption tank and the bottom of the tank cavity of the absorption tank is 1/3-1/2 of the height of the tank cavity of the absorption tank.
In another preferred example, the distance between the nozzle of the air inlet pipe in the tank cavity of the buffer tank and the bottom of the tank cavity of the buffer tank is 1/3-1/2 of the height of the tank cavity of the buffer tank.
In another preferred example, the absorption tank and the buffer tank are on the same horizontal plane by taking the horizontal plane as a reference.
In another preferred example, the height of the buffer tank is higher than that of the absorption tank on the basis of the horizontal plane.
In another preferred example, the volume of the buffer tank is larger than the volume of the absorption tank. Preferably, the volume of the buffer tank is 2 to 5 times of the volume of the absorption tank.
In another preferred embodiment, the second liquid outlet pipe is provided with a third valve. The opening and closing of the first valve, the second valve and the third valve can control the absorption tank and each buffer tank to simultaneously add absorption liquid, and can also independently control the addition and outflow of the absorption liquid of the absorption tank and each buffer tank. For example, the first valve and the third valve are opened simultaneously, the second valve is closed, the absorption liquid is added into the absorption tank through the liquid inlet pipe, the absorption liquid simultaneously enters the buffer tank through the first liquid outlet pipe, the balance pipe and the second liquid outlet pipe, and after the absorption liquid in the absorption tank and the buffer tank is added, the first valve and the third valve are closed. In addition, the adding and the outflow of the absorption liquid in the absorption tank and the buffer tank can be controlled independently by controlling the opening and the closing of the first valve and the third valve respectively according to requirements, for example, because the absorption liquid in the absorption tank is saturated before the absorption liquid in the buffer tank, the saturated absorption liquid in the absorption tank can be discharged by opening the first valve and the second valve, then, the first valve and the second valve are closed, the absorption liquid is added into the absorption tank again through the liquid inlet pipe, and after the absorption liquid in the buffer tank is saturated, the third valve and the second valve are opened to flow the absorption liquid in the buffer tank. Therefore, right exhaust gas absorbing device, through the switching of valve, can be to respectively add the absorption liquid alone in absorption tank and the buffer tank, reduced the transport and the repeated joining operation of absorption liquid to practice thrift the manpower
In another preferred embodiment, the buffer tank is provided with a liquid inlet pipe. Preferably, the liquid inlet pipe that is equipped with on the buffer tank is equipped with the fourth valve.
Among the waste gas absorbing device, can realize that multiple waste gas absorbs, reduce the quantity of adsorption tanks, practice thrift the cost, for example: in waste gas absorbing device, contain 5 buffer tanks and 1 absorption tank, wherein, the waste gas absorption pipe that has 3 buffer tanks links to each other with the outlet duct of hydrochloric acid liquid storage pot, and the waste gas absorption pipe that has 2 buffer tanks links to each other with the outlet duct of aqueous ammonia liquid storage pot, consequently, waste gas absorbing device can realize the absorption of ammonia and hydrochloric acid to practice thrift investment cost.
The utility model discloses a main advantage includes:
1. among the exhaust gas absorption device, not only can absorb waste gas through adding the absorption liquid in to the absorption tank, avoid waste gas (like volatile acid or alkali) directly to discharge in the atmosphere, but also can effectively avoid the emergence of suck-back phenomenon.
2. Waste gas absorbing device can realize that multiple waste gas absorbs, reduce the quantity of absorption tank, practice thrift the cost
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers. Unless otherwise indicated, percentages and parts are by weight.
Example 1
Embodiment 1 please provide an exhaust gas absorption apparatus, the structure of which is schematically shown in fig. 1, the apparatus includes an absorption tank 1, a buffer tank 2 and a balance pipe 3;
the absorption tank is provided with an exhaust pipe 4, a liquid inlet pipe 5 and a first liquid outlet pipe 6, and the first liquid outlet pipe is provided with a first valve 7 and a second valve 8;
the buffer tank is provided with a waste gas absorption pipe 9, a waste gas outlet pipe 10, a second liquid outlet pipe 11 and an air inlet pipe 12, the waste gas absorption pipe and the waste gas outlet pipe are arranged at the top of the buffer tank, the second liquid outlet pipe is arranged at the bottom of the buffer tank, the air inlet pipe penetrates through the tank wall at the top of the buffer tank to enter the tank cavity of the buffer tank, and the waste gas outlet pipe penetrates through the tank wall at the top of the absorption tank to enter the tank cavity of the absorption tank;
one end of the balance pipe is closed, the other end of the balance pipe is communicated with a first liquid outlet pipe arranged on the absorption tank, a connection point of the balance pipe and the first liquid outlet pipe is positioned between the first valve and the second valve, and a second liquid outlet pipe on the buffer tank is communicated with the balance pipe;
and the second liquid outlet pipe is provided with a third valve.
Taking volatile hydrochloric acid as an example, it is illustrated that when volatile hydrochloric acid is required as a raw material in a large-scale production process, the exhaust gas absorption apparatus described in example 1 can avoid the generated volatile acid from being directly discharged into the atmosphere, and can also avoid the absorption liquid from being sucked back, and the basic principle is mainly as follows:
1. the waste gas absorption pipe that the top of buffer tank was equipped with communicates with each other with the outlet duct on the hydrochloric acid liquid storage pot, adds absorption liquid (like water or alkali lye) to the absorption tank, and the absorption liquid enters into the buffer tank simultaneously through the balance pipe, and the mouth of pipe that highly is higher than the waste gas outlet pipe in the tank cavity of absorption tank and the mouth of pipe that highly is higher than the tank cavity intake pipe of buffer tank of absorption liquid in the jar of absorption liquid in the tank cavity of absorption tank are after, stop adding absorption liquid
2. During the process of adding hydrochloric acid into a hydrochloric acid liquid storage tank and storing the hydrochloric acid in the hydrochloric acid liquid storage tank, the volatilized hydrochloric acid enters a buffer tank through a waste gas absorption pipe, then is contacted with absorption liquid in the absorption tank through a waste gas outlet pipe arranged on the buffer tank, and the absorption liquid in the buffer tank and the absorption liquid in the absorption tank absorb the volatilized hydrochloric acid, so that the hydrochloric acid is prevented from volatilizing into the atmosphere to pollute the air;
3. when hydrochloric acid in the hydrochloric acid liquid storage tank flows out through a liquid outlet pipe of the liquid storage tank and is fed, air pressure in the liquid storage tank and the buffer tank communicated with the liquid storage tank is reduced, absorption liquid in the absorption tank is slightly sucked, at the moment, outside air can enter the buffer tank through an air inlet pipe on the buffer tank, so that the buffer tank and negative pressure in the hydrochloric acid liquid storage tank communicated with the buffer tank are relieved, the absorption liquid in the absorption tank is prevented from being sucked to the buffer tank, and the absorption liquid in the buffer tank is prevented from being sucked to the liquid storage tank
4. When stopping the hydrochloric acid outflow in the liquid storage tank and throwing the material or add hydrochloric acid to the liquid storage tank once more, because the volatilization of hydrochloric acid for the atmospheric pressure in liquid storage tank and the communicating buffer tank of liquid storage tank is greater than the absorption tank, volatile hydrochloric acid gets into the buffer tank through the waste gas absorption tube once more, then contacts through the waste gas outlet duct that is equipped with on the buffer tank with the absorption liquid in the absorption tank, and the absorption liquid absorbs the hydrochloric acid that volatilizees, thereby avoids hydrochloric acid to volatilize to the atmosphere.
All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. An exhaust gas absorption device, characterized in that the device comprises an absorption tank (1), a buffer tank (2) and a balance pipe (3);
the absorption tank is provided with an exhaust pipe (4), a liquid inlet pipe (5) and a first liquid outlet pipe (6), and the first liquid outlet pipe is provided with a first valve (7) and a second valve (8);
the buffer tank is provided with a waste gas absorption tube (9), a waste gas outlet tube (10), a second liquid outlet tube (11) and an air inlet tube (12), the waste gas absorption tube and the waste gas outlet tube are arranged at the top of the buffer tank, the second liquid outlet tube is arranged at the bottom of the buffer tank, the air inlet tube penetrates through the tank wall at the top of the buffer tank to enter the tank cavity of the buffer tank, and the waste gas outlet tube penetrates through the tank wall at the top of the absorption tank to enter the tank cavity of the absorption tank;
the one end of balance pipe is confined, the other end of balance pipe with first drain pipe that is equipped with on the absorption tank communicates with each other, balance pipe with the tie point of first drain pipe is located between first valve and the second valve, second drain pipe on the buffer tank with balance pipe communicates with each other.
2. The exhaust gas absorbing apparatus according to claim 1, wherein the number of the surge tanks is 1 or more.
3. The exhaust gas absorbing apparatus according to claim 1, wherein the number of the surge tanks is 1 to 8.
4. The exhaust gas absorbing apparatus according to claim 1, wherein the exhaust gas absorbing pipe is provided with a gas filter.
5. The exhaust gas absorption apparatus as claimed in claim 1, wherein the distance between the mouth of the exhaust gas outlet pipe in the cavity of the absorption tank and the bottom of the cavity of the absorption tank is 1/3 to 1/2 of the height of the cavity of the absorption tank.
6. The exhaust gas absorption device as claimed in claim 1, wherein the distance between the mouth of the air intake pipe in the chamber of the surge tank and the bottom of the chamber of the surge tank is 1/3 to 1/2 of the height of the chamber of the surge tank.
7. The exhaust gas absorbing apparatus according to claim 1, wherein the absorption tank and the surge tank are on the same horizontal plane with reference to the horizontal plane; or
And the height of the buffer tank is higher than that of the absorption tank on the basis of a horizontal plane.
8. The exhaust gas absorbing apparatus according to claim 1, wherein the volume of the surge tank is larger than the volume of the absorption tank.
9. An exhaust gas absorption device as claimed in claim 1, characterized in that the second outlet pipe is provided with a third valve (13).
10. The exhaust gas absorption apparatus as recited in claim 1, wherein said first effluent pipe is disposed at the bottom of said canister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112911.8U CN210251798U (en) | 2019-07-16 | 2019-07-16 | Waste gas absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112911.8U CN210251798U (en) | 2019-07-16 | 2019-07-16 | Waste gas absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210251798U true CN210251798U (en) | 2020-04-07 |
Family
ID=70012635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921112911.8U Active CN210251798U (en) | 2019-07-16 | 2019-07-16 | Waste gas absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210251798U (en) |
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2019
- 2019-07-16 CN CN201921112911.8U patent/CN210251798U/en active Active
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