CN217092879U - Special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives - Google Patents
Special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives Download PDFInfo
- Publication number
- CN217092879U CN217092879U CN202220798686.3U CN202220798686U CN217092879U CN 217092879 U CN217092879 U CN 217092879U CN 202220798686 U CN202220798686 U CN 202220798686U CN 217092879 U CN217092879 U CN 217092879U
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- CN
- China
- Prior art keywords
- pipe
- reaction tank
- tail gas
- communicated
- acid derivatives
- 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.)
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 48
- LCPDWSOZIOUXRV-UHFFFAOYSA-N phenoxyacetic acid Chemical class OC(=O)COC1=CC=CC=C1 LCPDWSOZIOUXRV-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 239000003513 alkali Substances 0.000 claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000003595 mist Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model relates to the technical field of tail gas absorption equipment, in particular to a hydrochloric acid tail gas absorption device special for production of phenoxyacetic acid derivatives, which comprises an absorption bin, wherein an air inlet pipe and a sealed water filling port are arranged on the absorption bin, and a dispersion plate is arranged in the absorption bin above the air inlet pipe; the reaction tank is communicated with the absorption bin through an air guide pipe, the air inlet end of the air guide pipe is communicated with the upper part in the absorption bin, the air outlet end of the air guide pipe is communicated with an annular pipe arranged in the reaction tank, and the reaction tank is provided with a sealed liquid adding opening for adding alkali liquor; the first end of the return pipe is communicated with the bottom of the reaction tank, the second end of the return pipe is arranged in the reaction tank above the annular pipe, and the return pipe is provided with a circulating pump; the spraying mechanism is arranged in the reaction tank, is connected with the second end of the return pipe and is used for spraying alkali liquor; the activated carbon filter plate is arranged between the spraying mechanism and the exhaust port at the top of the reaction tank. The utility model has the advantages of even hydrochloric acid tail gas treatment, good treatment effect and the like.
Description
Technical Field
The utility model relates to a tail gas absorption technical equipment field specifically is a special hydrochloric acid tail gas absorbing device of production of phenoxyacetic acid derivative.
Background
In the production process of phenoxyacetic acid derivatives, a certain amount of hydrochloric acid tail gas is generated, and since hydrochloric acid has certain volatility and is directly discharged into the atmosphere, factory facilities and equipment around a factory are damaged, the harmful effects on the life of residents are easily caused, the health and safety of workers are affected, and environmental pollution is caused, so that the hydrochloric acid tail gas is required to be absorbed, when the hydrochloric acid tail gas is absorbed by the existing impurities, the tail gas is generally introduced into an absorption liquid, hydrochloric acid in the tail gas is absorbed by the absorption liquid, so that the discharged tail gas is purified, but when the hydrochloric acid tail gas is used, the phenomenon of insufficient absorption is easily caused if the tail gas flow speed is high, the existing device cannot be repeatedly utilized when alkali liquor and acid liquor are utilized, the acid gas cannot be fully treated, the acid gas overflows, and resources are wasted, increases economic cost, thereby reducing the treatment effect of the acid gas and harming the environment and the personal safety once being discharged.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a special hydrochloric acid tail gas absorbing device of production of phenoxyacetic acid derivative aims at solving among the prior art hydrochloric acid tail gas and absorbs inhomogeneous, the unable cyclic utilization's of alkali lye technical problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a hydrochloric acid tail gas absorption device special for production of phenoxyacetic acid derivatives comprises:
the absorption bin is provided with an air inlet pipe and a sealed water filling port, and a dispersion plate is arranged inside the absorption bin above the air inlet pipe;
the reaction tank is communicated with the absorption bin through an air guide pipe, the air inlet end of the air guide pipe is communicated with the upper part in the absorption bin, the air outlet end of the air guide pipe is communicated with an annular pipe arranged in the reaction tank, and the reaction tank is provided with a sealed liquid adding opening for adding alkali liquor;
the first end of the return pipe is communicated with the bottom of the reaction tank, the second end of the return pipe is arranged in the reaction tank above the annular pipe, and the return pipe is provided with a circulating pump;
the spraying mechanism is arranged in the reaction tank, is connected with the second end of the return pipe and is used for spraying alkali liquor;
the activated carbon filter plate is arranged between the spraying mechanism and the exhaust port at the top of the reaction tank.
The utility model discloses a further improvement lies in, the inboard circumferencial direction of ring conduit evenly is provided with a plurality of first shower nozzles.
The utility model discloses a further improvement lies in, first shower nozzle all inclines to set up downwards.
The utility model discloses a further improvement lies in, spray the mechanism and include:
the rotary spray pipe is arranged on the fixed frame of the reaction tank and comprises a main pipe and a plurality of branch pipes communicated with the main pipe, a second spray head is uniformly arranged on each branch pipe, and the main pipe is communicated with the second end of the return pipe through a rotary joint;
and the first bevel gear is arranged on the main pipe and is meshed with a second bevel gear arranged at the power output end of the first motor.
The utility model discloses a further improvement lies in, parallel arrangement has two about the dispersion board, and the dispersion board aperture that is located the below is greater than the dispersion board aperture of top.
The utility model discloses a further improvement lies in, be provided with the stirring rake in the absorption storehouse of dispersion plate top, it includes the puddler and goes up the paddle that evenly sets up, the stirring rake is by second motor drive.
The utility model discloses a further improvement lies in, active carbon filter below is provided with the defroster.
The utility model discloses a further improvement lies in, the defroster is formed by a plurality of buckled plate combinations.
The utility model discloses a further improvement lies in, but be provided with open closed sealed access door on the retort.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the utility model provides a special hydrochloric acid tail gas absorbing device of production of phenoxyacetic acid derivative dissolves hydrochloric acid tail gas in aqueous through utilizing the absorption storehouse to utilize dispersion plate and stirring rake to break up the acid bubble and the solution, acid water smoke then gets into retort and alkali lye neutralization, utilizes the back flow to spray alkali lye simultaneously, does benefit to and fully absorbs hydrochloric acid, the gas outgoing after will purifying at last. Compared with the prior art, the utility model has the advantages of reasonable in design, to hydrochloric acid tail gas absorption abundant, improved the treatment effeciency of tail gas greatly, green, spreading value is high.
The above technical advances are achieved primarily by the following detailed technical improvements:
the utility model discloses in, two dispersion boards that set up in the retort set up in the intake pipe top, can break up hydrochloric acid gas in aqueous, reduce the speed of air current, increase the area of contact of gas and water, and the stirring rake is located under the surface of water simultaneously, can make water and gas solution more even, do benefit to the absorption and dissolve more hydrochloric acid tail gas, and then improve tail gas absorption efficiency, avoid hydrochloric acid to volatilize influence environment and personal health.
The utility model discloses in the alkaline solution of acid water smoke water conservancy diversion to the retort bottom in will absorbing the storehouse, wherein can promote and react, carry out further processing to acid gas, the back flow that utilizes the retort bottom to stretch out simultaneously is linked together with spraying mechanism, can make not intensive mixing's alkali lye continue to spray through rotatory spray tube, make its and acid water smoke fully contact, the absorption efficiency of tail gas has been improved effectively, and the active carbon filter that the retort top set up adsorbs the impurity in the tail gas, after the gas after the purification then passes through the defroster, to the dry gas of retort external discharge, friendly to the environment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic front view of the tail gas absorption device of the present invention;
fig. 2 is a schematic view of a portion of the enlarged structure at a in fig. 1 according to the present invention;
fig. 3 is an isometric view of the tail gas absorption apparatus of the present invention;
fig. 4 is a schematic view of the whole structure of the tail gas absorption device of the present invention;
description of reference numerals:
10. absorption bin, 11, intake pipe, 12, filler, 13, dispersion board, 14, valve, 15, access door, 20, retort, 21, air duct, 22, ring pipe, 221, first shower nozzle, 23, filling opening, 24, back flow, 25, circulating pump, 26, gas vent, 30, spray mechanism, 31, rotatory spray tube, 32, the person in charge, 33, branch pipe, 34, second shower nozzle, 35, first bevel gear, 36, second bevel gear, 37, first motor, 40, active carbon filter, 41, defroster, 50, stirring rake, 51, puddler, 52, paddle, 53, second motor.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system architectures and techniques, in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The utility model provides a pair of special hydrochloric acid tail gas absorbing device of production of phenoxyacetic acid derivative can know according to specification attached drawing 1 to figure 4, a special hydrochloric acid tail gas absorbing device of production of phenoxyacetic acid derivative includes: absorption bin 10, retort 20, back flow pipe 24, spray mechanism 30 and active carbon filter 40.
The absorption bin 10 is provided with an air inlet pipe 11 and a sealed water filling port 12, and a dispersion plate 13 is arranged inside the absorption bin 10 above the air inlet pipe 11, so that hydrochloric acid gas can be dispersed, the speed of air flow is reduced, the contact area of the gas and water is increased, and tail gas is absorbed more fully; the reaction tank 20 is communicated with the absorption bin 10 through the air duct 21, the air inlet end of the air duct 21 is communicated with the inner upper part of the absorption bin 10, the air outlet end is communicated with the annular pipe 22 communicated with the inner lower part of the reaction tank 20, acidic water mist in the absorption bin 10 can be drained into the reaction tank 20 for neutralization treatment, and the reaction tank 20 is provided with a sealed liquid adding opening 23 for adding alkali liquor.
As shown in fig. 1, a first end of the return pipe 24 is communicated with the bottom of the reaction tank 20, a second end is arranged in the reaction tank 20 above the annular pipe 22, and the return pipe 24 is provided with a circulating pump 25; the spraying mechanism 30 is arranged in the reaction tank 20, is connected with the second end of the return pipe 24 and is used for spraying alkali liquor, so that the alkali liquor which is not fully mixed can be continuously sprayed through the rotary spray pipe 31 and is fully contacted with the acidic water mist; the activated carbon filter 40 is disposed between the spraying mechanism 30 and the exhaust port 26 at the top of the reaction tank 20, and is used for adsorbing impurities in the tail gas and preventing atmosphere pollution.
As an embodiment, as can be seen from the attached figure 3 in the specification, a plurality of first nozzles 221 are uniformly arranged in the circumferential direction inside the annular pipe 22 for uniformly spraying the acidic water mist into the alkali solution, so as to facilitate the sufficient mixing of the acidic water mist and the alkali solution.
As an embodiment, as can be seen from the description of FIG. 1, the first nozzles 221 are all arranged obliquely downward, and the acid water mist is sprayed from below, so that the contact area with the alkali liquor can be increased.
As an example, as can be seen from fig. 2 in the specification, the spraying mechanism 30 includes: the rotary spray pipe 31 is arranged on a fixed frame of the reaction tank 20 and comprises a main pipe 32 and a plurality of branch pipes 33 communicated with the main pipe, a second spray head 34 is uniformly arranged on each branch pipe 33, and the main pipe 32 is communicated with the second end of the return pipe 24 through a rotary joint; and a first bevel gear 35 arranged on the main pipe 32 and meshed with a second bevel gear 36 arranged at the power output end of a first motor 37. The device is used for recycling the alkali liquor which is not fully mixed and spraying the alkali liquor above the tail gas in a repeated rotating manner, so that the spraying range is wider, and the tail gas absorption efficiency is greatly improved.
As an example, as can be seen from fig. 3 in the specification, two dispersion plates 13 are arranged in parallel up and down, and the aperture of the dispersion plate 13 located below is larger than that of the dispersion plate 13 located above. Is beneficial to scattering acid bubbles and promoting the gas-liquid fusion.
As an embodiment, as can be seen from fig. 1 of the specification, a stirring paddle 50 is disposed in the absorption bin 10 above the dispersion plate 13, and includes a stirring rod 51 and blades 52 uniformly disposed thereon, the stirring paddle 50 is driven by a second motor 53, and specifically, through holes are uniformly disposed on the blades 52 for promoting water and gas to be mutually dissolved, which is beneficial to absorbing more hydrochloric acid tail gas.
As an embodiment, as can be seen from the attached FIG. 1, a demister 41 is disposed below the activated carbon filter plate 40 for removing water mist from the gas.
In this embodiment, as is apparent from fig. 3 of the specification, the demister 41 is formed by combining a plurality of corrugated plates.
As an example, as can be seen from fig. 1 of the specification, the intake pipe 11 is provided with a valve 14.
As an example, as can be seen from FIG. 4 in the specification, the reaction tank 20 is provided with an openable and closable seal access door 15.
It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," comprising, "or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and the phrase" comprising a.once.a.limited element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. A special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives is characterized by comprising:
the absorption bin is provided with an air inlet pipe and a sealed water filling port, and a dispersion plate is arranged inside the absorption bin above the air inlet pipe;
the reaction tank is communicated with the absorption bin through an air guide pipe, the air inlet end of the air guide pipe is communicated with the upper part in the absorption bin, the air outlet end of the air guide pipe is communicated with an annular pipe arranged in the reaction tank, and the reaction tank is provided with a sealed liquid adding opening for adding alkali liquor;
the first end of the return pipe is communicated with the bottom of the reaction tank, the second end of the return pipe is arranged in the reaction tank above the annular pipe, and the return pipe is provided with a circulating pump;
the spraying mechanism is arranged in the reaction tank, is connected with the second end of the return pipe and is used for spraying alkali liquor;
the activated carbon filter plate is arranged between the spraying mechanism and the exhaust port at the top of the reaction tank.
2. The tail gas absorption device for the production of phenoxyacetic acid derivatives as claimed in claim 1, wherein a plurality of first nozzles are uniformly arranged in the circumferential direction inside the annular tube.
3. The tail gas absorbing device for the production of phenoxyacetic acid derivatives of claim 2, wherein the first nozzles are all arranged obliquely downward.
4. The tail gas absorbing device for the production of phenoxyacetic acid derivatives of claim 1, wherein the spraying mechanism comprises:
the rotary spray pipe is arranged on the fixed frame of the reaction tank and comprises a main pipe and a plurality of branch pipes communicated with the main pipe, a second spray head is uniformly arranged on each branch pipe, and the main pipe is communicated with the second end of the return pipe through a rotary joint;
and the first bevel gear is arranged on the main pipe and is meshed with a second bevel gear arranged at the power output end of the first motor.
5. The tail gas absorption device for producing phenoxyacetic acid derivatives as claimed in claim 1, wherein two dispersion plates are disposed in parallel, and the aperture of the dispersion plate below is larger than that of the dispersion plate above.
6. The special hydrochloric acid tail gas absorption device for producing phenoxyacetic acid derivatives of claim 5, wherein a stirring paddle is arranged in the absorption bin above the dispersion plate, the stirring paddle comprises a stirring rod and blades uniformly arranged on the stirring rod, and the stirring paddle is driven by a second motor.
7. The hydrochloric acid tail gas absorption device special for the production of phenoxyacetic acid derivatives of claim 1, characterized in that a demister is arranged below the activated carbon filter plate.
8. The hydrochloric acid tail gas absorption device special for the production of phenoxyacetic acid derivatives of claim 7, wherein the demister is formed by combining a plurality of corrugated plates.
9. The special hydrochloric acid tail gas absorption device for the production of phenoxyacetic acid derivatives as claimed in any one of claims 1 to 8, wherein the reaction tank is provided with a sealing access door which can be opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798686.3U CN217092879U (en) | 2022-04-08 | 2022-04-08 | Special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798686.3U CN217092879U (en) | 2022-04-08 | 2022-04-08 | Special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217092879U true CN217092879U (en) | 2022-08-02 |
Family
ID=82580137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220798686.3U Expired - Fee Related CN217092879U (en) | 2022-04-08 | 2022-04-08 | Special hydrochloric acid tail gas absorption device for production of phenoxyacetic acid derivatives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217092879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983821A (en) * | 2023-08-24 | 2023-11-03 | 江苏优普生物化学科技股份有限公司 | Tail gas treatment device for synthesizing 2-bromo-5-fluorobenzotrifluoride |
-
2022
- 2022-04-08 CN CN202220798686.3U patent/CN217092879U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983821A (en) * | 2023-08-24 | 2023-11-03 | 江苏优普生物化学科技股份有限公司 | Tail gas treatment device for synthesizing 2-bromo-5-fluorobenzotrifluoride |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220802 |