CN217887507U - Waste gas treatment device for chloroethylene conversion - Google Patents
Waste gas treatment device for chloroethylene conversion Download PDFInfo
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- CN217887507U CN217887507U CN202221196336.6U CN202221196336U CN217887507U CN 217887507 U CN217887507 U CN 217887507U CN 202221196336 U CN202221196336 U CN 202221196336U CN 217887507 U CN217887507 U CN 217887507U
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- waste gas
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- waste
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- 239000002912 waste gas Substances 0.000 title claims abstract description 54
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000005406 washing Methods 0.000 claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000002351 wastewater Substances 0.000 claims description 24
- 239000003513 alkali Substances 0.000 claims description 14
- 230000001699 photocatalysis Effects 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000003518 caustics Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000001089 mineralizing effect Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of the chloroethylene conversion. Based on in current chloroethylene conversion process, contain the organic gas of trace smell in the waste gas, can not be handled by the caustic wash tower, direct discharge is not conform to the problem of national environmental protection emission standard, the utility model discloses aA waste gas treatment device for chloroethylene conversion, the structure of the system comprises an alkaline washing tower, a gas-liquid separator and a gas-liquid separator, wherein the alkaline washing tower is used for absorbing acid gas in waste gas; it has an intake pipe and an exhaust pipe; the converter is used for producing vinyl chloride and is communicated with the air inlet pipe; the first fan is communicated with the exhaust pipe; the optical processing assembly is communicated with the first fan to mineralize organic gas in the waste gas. The waste gas treatment device absorbs acid gas through the alkaline washing tower and mineralizes organic gas into H through the optical treatment component 2 O、CO 2 And other harmless compounds, the purification of waste gas is realized, and the waste gas emission meets the national environmental protection emission standard.
Description
Technical Field
The utility model belongs to the technical field of the chloroethylene conversion, in particular to waste gas treatment device is used in chloroethylene conversion.
Background
Chloroethylene is a slightly water-soluble colorless gas twice as heavy as air at normal temperature and normal pressure, and has an anesthetic aromatic smell.
In the prior art, when the calcium carbide method is used for producing vinyl chloride, a trace amount of organic gas with peculiar smell can be generated, the organic gas can not be absorbed by the existing alkaline washing tower, the direct discharge can not reach the national environmental protection discharge standard, and the environmental pollution is caused.
SUMMERY OF THE UTILITY MODEL
When adopting the carbide method to produce chloroethylene among the prior art, organic gas in the waste gas can not obtain purifying, leads to waste gas exhaust not to conform to the problem of national environmental protection emission standard, the utility model discloses a waste gas treatment device is used in chloroethylene conversion, the device can mineralize into H with the organic gas in the waste gas 2 O、CO 2 And the like, thereby achieving the purpose of purifying the waste gas and enabling the waste gas emission to reach the national environmental protection emission standard.
A waste gas treatment device for chloroethylene conversion, the system comprises an alkaline washing tower, a gas separation tower and a gas separation tower, wherein the alkaline washing tower is used for absorbing acid gas in waste gas; it has an intake pipe and an exhaust pipe; the converter is used for producing vinyl chloride and is communicated with the air inlet pipe; the first fan is communicated with the exhaust pipe; and the optical processing assembly is communicated with the first fan so as to mineralize organic gas in the waste gas.
In one of the technical solutions disclosed in the present invention, the optical processing assembly includes:
a photocatalytic module having a catalyst disposed therein;
an ultraviolet lamp mounted adjacent to the photocatalytic module;
and the second fan is arranged on one side of the outlet of the photocatalytic module.
In one of the technical solutions disclosed in the present invention, the utility model further comprises a circulation tank; the circulating tank is communicated with a water outlet pipe of the alkaline washing tower so as to collect waste water and waste alkali.
In one of the technical schemes disclosed by the utility model, the device also comprises a steam-water mixing component which is arranged on the air inlet pipe of the alkaline washing tower; the circulating tank is communicated with the steam-water mixing assembly; and a second circulating pump is arranged between the circulating tank and the steam-water mixing assembly.
In one of the technical schemes disclosed by the utility model, the device also comprises a wastewater pool which is communicated with the water washing section of the alkaline washing tower; and a first circulating pump is arranged between the wastewater pool and the water washing section of the alkaline washing tower.
In one of the technical solutions disclosed in the present invention, the wastewater tank is communicated with the circulation tank.
The utility model discloses an among one of them technical scheme, still include the third fan, with first fan is parallelly connected.
The utility model discloses an among them technical scheme, the wind pressure of first fan is 5.0Kpa, and the amount of wind is 3000m 3 H; the wind pressure of the third fan is 2.0Kpa, and the wind quantity is 500m 3 /h。
As can be seen from the above description, compared with the prior art, the beneficial effects of the present invention are:
1. absorbing acid gas in the waste gas by an alkaline washing tower, and mineralizing organic gas in the waste gas into H by an optical processing assembly 2 O、CO 2 And other harmless compounds, the purification of waste gas is realized, and the waste gas emission meets the national environmental protection emission standard.
2. A circulating tank is arranged to collect the waste water and the waste alkali of the alkaline washing tower; simultaneously, the intake pipe still is equipped with steam-water mixing subassembly, introduces steam-water mixing subassembly and waste gas through the spent caustic soda with the circulation groove and carries out the premix, and the reducible acidic gas that gets into in the waste gas of alkaline tower is favorable to the protective apparatus, guarantees the treatment effect of alkaline tower.
3. The waste water tank is communicated with the water inlet pipe and the circulating groove, so that the waste water is recycled.
4. Be equipped with first fan parallel connection's third fan, and the wind pressure of both is different, can select for use different fans according to the behavior of converter, prevents that the interior negative pressure of converter is too big, damages equipment.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the optical processing module of the present invention.
Reference numerals:
1-a converter; 2-an alkaline washing tower; 21-a first water inlet pipe; 22-an air inlet pipe; 23-a second water inlet pipe; 24-a water outlet pipe; 25-an exhaust pipe; 3-alkali preparation tank; 4-a circulation tank; 41-a second circulation pump; 5-a wastewater tank; 51-first circulation pump; 6-a first fan; 7-an optical processing assembly; 71-a photocatalytic module; 72-an ultraviolet lamp; 73-a second fan; 8-a steam-water mixing component; 9-third fan.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of 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 present invention.
Furthermore, the terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The embodiment of the utility model discloses waste gas treatment device is used in chloroethylene conversion, its structure is as shown in attached 1-2, including converter 1, alkaline tower 2, join in marriage alkali groove 3, circulation tank 4, effluent water sump 5, first fan 6 and optical treatment subassembly 7.
Specifically, a converter 1, a plurality, is used for generating vinyl chloride gas.
The alkaline washing tower 2 is used for absorbing waste gas, which is the prior art, and the specific structure of the alkaline washing tower is not described herein. It is worth mentioning that the caustic tower 2 has a first water inlet pipe 21, an air inlet pipe 22, a second water inlet pipe 23, a water outlet pipe 24 and an air outlet pipe 25. The first water inlet pipe 21 is communicated with the water washing section of the alkaline washing tower 2, and the second water inlet pipe 23 is communicated with the alkaline washing section of the alkaline washing tower. The intake pipe 22 communicates with the converter 1.
The alkali preparation tank 3 is communicated with the second water inlet pipe 23 and is used for preparing and storing alkali liquor.
The circulating tank 4 is communicated with a water outlet pipe 24 to collect the waste water and the waste alkali of the alkali washing tower 2.
The wastewater tank 5 is communicated with the first water inlet pipe 21, and a first circulating pump 51 is arranged between the wastewater tank 6 and the first water inlet pipe 21.
The first fan 6 is communicated with the exhaust pipe 25 and is used for extracting the waste gas in the alkaline tower 2.
An optical treatment assembly 7 for mineralising the exhaust gases, in communication with the first fan 6, has a photocatalytic module 71, an ultraviolet lamp 72 and a second fan 73. A catalyst is provided in the photocatalytic module 71. When the waste gas enters the optical processing component 7, the organic gas is irradiated by the ultraviolet lamp and undergoes cracking and oxidation reaction under the action of the catalyst to be mineralized into H 2 O、CO 2 And other harmless compounds are pumped out by the second fan 73 to realize the purification of waste gas, so that the waste gas emission conforms to the national environmental protectionAnd (4) emission standard.
More specifically, the device also comprises a steam-water mixing assembly 8 which is arranged in the air inlet pipe 22. Wherein, the circulation groove 4 is communicated with the steam-water mixing component 8. A second circulating pump 41 is arranged between the circulating tank 4 and the steam-water mixing assembly 8.
Adopt above-mentioned structure, go into soda mixing subassembly 8 through the alkali waste pump of second circulating pump 41 in with circulation tank 4, go on the premix with waste gas to carry out the preliminary treatment with the acid gas in the waste gas, with the acid gas in the waste gas that reduces entering alkaline tower 2, guarantee alkaline tower 2's treatment effect, and be favorable to preventing to reduce the corruption of acid gas to follow-up workshop section, guarantee equipment steady operation.
In the present embodiment, the steam-water mixing assembly 8 is a commercially available steam-water mixer.
More specifically, the circulation tank 4 is communicated with the wastewater tank 5, and after the alkaline cleaning is finished, water in the circulation tank 4 is introduced into the wastewater tank 5 to realize the recycling of wastewater.
More specifically, a third fan 9 is also included, used in parallel with the first fan 6. Wherein, the wind pressure of the first fan is 5.0Kpa, and the wind volume is 3000m 3 H; the wind pressure of the third fan is 2.0Kpa, and the wind quantity is 500m 3 H is used as the reference value. Adopt two kinds of different wind pressures to get the fan, can select for use different fans according to the actual conditions of converter, prevent that the negative pressure in the converter 1 is too big, damage equipment.
The embodiment of the utility model provides a theory of operation is:
introducing the waste gas in the converter 1 into an alkaline washing tower 2, absorbing acid gas in the waste gas by alkali liquor, introducing the waste gas into an optical processing assembly 7 by a first fan 6, and mineralizing organic gas in the waste gas into H by irradiation of an ultraviolet lamp and catalysis of a catalyst 2 O、CO 2 Other harmless compounds, and the like, to realize the purification of the waste gas; meanwhile, the wastewater and the waste alkali of the alkaline tower 2 flow into the circulating tank 4, and are pumped into the steam-water mixing component 8 arranged on the air inlet pipe 22 through the second circulating pump 41, and are pre-mixed with the waste gas, so that the acidic gas in the waste gas entering the alkaline tower 2 is reduced, and the treatment effect of the alkaline tower is ensured; finally, the circulation tank is also connected with a wastewater tank5, realizing the cyclic utilization of the wastewater.
As can be seen from the above description, compared with the prior art, the embodiment of the present invention has the following beneficial effects:
absorbing acid gas in the waste gas by an alkaline washing tower, and mineralizing organic gas in the waste gas into H by an optical processing assembly 2 O、CO 2 Other harmless compounds, the purification of waste gas is realized, and the waste gas emission meets the national environmental protection emission standard; further, a circulating tank is arranged to collect the waste water and the waste alkali of the alkaline washing tower; meanwhile, the air inlet pipe is also provided with a steam-water mixing component, and waste alkali in the circulating tank is introduced into the steam-water mixing component and is premixed with waste gas, so that acid gas in the waste gas entering the alkaline tower can be reduced, the protection of equipment is facilitated, and the treatment effect of the alkaline tower is ensured; furthermore, a wastewater pond is arranged and communicated with the water inlet pipe and the circulating groove, so that the cyclic utilization of the wastewater is realized; and finally, a third fan connected with the first fan in parallel is arranged, the air pressure of the third fan and the air pressure of the first fan are different, different fans can be selected according to the working condition of the converter, and the phenomenon that the negative pressure in the converter is too large and equipment is damaged is prevented.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An exhaust gas treatment device for vinyl chloride conversion, comprising:
the alkaline washing tower is used for absorbing acid gas in the waste gas; it has an intake pipe and an exhaust pipe;
the converter is used for producing vinyl chloride and is communicated with the air inlet pipe;
the first fan is communicated with the exhaust pipe;
and the optical processing assembly is communicated with the first fan so as to mineralize the organic gas in the waste gas.
2. The exhaust gas treatment device for vinyl chloride conversion according to claim 1, wherein the optical treatment unit comprises:
a photocatalytic module having a catalyst disposed therein;
an ultraviolet lamp mounted adjacent to the photocatalytic module;
and the second fan is arranged on one side of the outlet of the photocatalytic module.
3. The apparatus for processing waste gas for vinyl chloride conversion according to claim 1, further comprising a circulation tank; the circulating tank is communicated with a water outlet pipe of the alkaline washing tower so as to collect waste water and waste alkali.
4. The waste gas treatment device for vinyl chloride conversion according to claim 3, further comprising a steam-water mixing component disposed on an intake pipe of the alkaline tower; the circulating tank is communicated with the steam-water mixing assembly; and a second circulating pump is arranged between the circulating tank and the steam-water mixing assembly.
5. The waste gas treatment apparatus for vinyl chloride conversion according to claim 3, further comprising a waste water tank communicating with the water washing section of the alkaline tower; and a first circulating pump is arranged between the wastewater pool and the water washing section of the alkaline washing tower.
6. The apparatus for processing waste gas for vinyl chloride conversion according to claim 5, wherein the waste water tank is in communication with the circulation tank.
7. The apparatus of claim 1, further comprising a third fan connected in parallel with the first fan.
8. According to the claimsClaim 7 of the waste gas treatment device for vinyl chloride conversion, wherein the wind pressure of the first fan is 5.0Kpa, and the wind volume is 3000m 3 H; the wind pressure of the third fan is 2.0Kpa, and the wind quantity is 500m 3 /h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196336.6U CN217887507U (en) | 2022-05-17 | 2022-05-17 | Waste gas treatment device for chloroethylene conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196336.6U CN217887507U (en) | 2022-05-17 | 2022-05-17 | Waste gas treatment device for chloroethylene conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217887507U true CN217887507U (en) | 2022-11-25 |
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ID=84111746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221196336.6U Active CN217887507U (en) | 2022-05-17 | 2022-05-17 | Waste gas treatment device for chloroethylene conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217887507U (en) |
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- 2022-05-17 CN CN202221196336.6U patent/CN217887507U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20240617 Address after: 614899 Yongxiang Road, Zhu Gen Town, Wu Tong Qiao District, Leshan, Sichuan, 96 Patentee after: Sichuan Yongxiang Resin Co.,Ltd. Country or region after: China Address before: 614899 Yongxiang Road, Zhu Gen Town, Wu Tong Qiao District, Leshan, Sichuan, 96 Patentee before: SICHUAN YONGXIANG Co.,Ltd. Country or region before: China |