CN211302642U - Waste gas filtering device for acetic anhydride processing - Google Patents
Waste gas filtering device for acetic anhydride processing Download PDFInfo
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- CN211302642U CN211302642U CN201921263904.8U CN201921263904U CN211302642U CN 211302642 U CN211302642 U CN 211302642U CN 201921263904 U CN201921263904 U CN 201921263904U CN 211302642 U CN211302642 U CN 211302642U
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- waste gas
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- alkaline solution
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- 239000002912 waste gas Substances 0.000 title claims abstract description 95
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000001914 filtration Methods 0.000 title claims description 16
- 239000012670 alkaline solution Substances 0.000 claims abstract description 88
- 239000000243 solution Substances 0.000 claims abstract description 64
- 239000007789 gas Substances 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 40
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 20
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 8
- 230000003472 neutralizing effect Effects 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 20
- 239000000779 smoke Substances 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 239000003463 adsorbent Substances 0.000 claims description 8
- 101100218322 Arabidopsis thaliana ATXR3 gene Proteins 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 abstract description 12
- 239000002253 acid Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a waste gas filter equipment is used in acetic anhydride processing, including exhaust gas case, draught fan, exhaust-gas treatment case, neutralization solution collection unit, alkaline solution case, solution pipeline two, shower, flue gas hood and exhaust pipe, alkaline solution box and solution pipeline one, there is the alkaline solution pump in the inside bottom of alkaline solution box through bolted connection, and the outlet end threaded connection of alkaline solution pump has solution pipeline one, solution pipeline two: one end of the second solution pipeline is connected with the atomizer, one end of the first solution pipeline, which is far away from the alkaline solution pump, is connected with the other end of the second solution pipeline, which is far away from the atomizer, through the right side wall of the waste gas treatment box, the spray pipe is embedded in the lower side of the pipeline of the second solution pipeline, which extends into the waste gas treatment box, the alkaline solution is atomized through the atomizer, the contact area of the alkaline solution and the waste gas is increased, and the acidic gas is fully filtered.
Description
Technical Field
The utility model relates to a waste gas treatment technical field specifically is a waste gas filter equipment is used in acetic anhydride processing.
Background
Acetic anhydride is an important acetylation reagent, and plays an important role in a plurality of industrial fields such as the pharmaceutical industry, the dye industry, the perfume industry and the like, so the acetic anhydride has a great demand in the existing society, but waste gas containing acid gas is generated in the production process of the acetic anhydride, so the acid gas in the waste gas in the production process of the acetic anhydride needs to be filtered, most of the existing waste gas filtering devices for processing adopt alkaline solution to neutralize acid in the waste gas to achieve the purpose of filtering, but particulate impurities still exist in the waste gas in the existing waste gas filtering devices for processing, the acid gas in the waste gas does not react with the alkaline solution, and the filtering efficiency of the acid gas is not high.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the existing defects, provide a waste gas filtering device for processing acetic anhydride, through the air distribution pipe on the air distribution plate, the flue gas can flow upwards in the waste gas treatment box, not only increase the residence time of the flue gas in the waste gas treatment box, but also make the flue gas distribute evenly in the waste gas treatment box, make the alkaline solution neutralize from the acidic gas that is divided and is contained in the flue gas, atomize the alkaline solution through the atomizer, the alkaline solution after the atomization is uniformly sprinkled in the waste gas treatment box through the spray pipe, increase the contact area of the alkaline solution and the flue gas, improve the absorption efficiency of the acidic gas, through the SDG2 type adsorbent embedded on the filter screen, the acidic gas that is not filtered in the flue gas can be absorbed again, through the activated carbon adsorption layer, the particulate matter that contains in the flue gas can be adsorbed, impurities are removed, acid gas in the waste gas of the waste gas filtering device for processing acetic anhydride reacts with alkaline solution, no particulate matter impurities exist in the filtered waste gas, the filtering efficiency of the acid gas is high, and the problem in the background art can be effectively solved.
In order to achieve the above object, the utility model provides a following technical scheme: a waste gas filtering device for processing acetic anhydride comprises a waste gas box, an induced draft fan, a waste gas treatment box, a neutralization solution collecting unit, an alkaline solution box, a solution pipeline II, a spray pipe, a smoke hood and a smoke exhaust pipeline;
an exhaust gas tank: waste gas generated in the acetic anhydride processing production process is filled in the waste gas box;
waste gas treatment case: the waste gas treatment box is arranged at the right end of the waste gas box, and supporting legs are welded at four corners of the lower surface of the waste gas treatment box;
an induced draft fan: an air inlet of the induced draft fan is connected with the right side wall of the waste gas box through a pipeline, an air outlet of the induced draft fan is connected with the left side wall of the waste gas treatment box through a pipeline, and waste gas in the waste gas treatment box is extracted into the waste gas outlet box through the induced draft fan;
an alkaline solution tank: the alkaline solution tank comprises an alkaline solution pump, a first switch, an alkaline solution tank body and a first solution pipeline, the bottom end in the alkaline solution tank body is connected with the alkaline solution pump through a bolt, the outlet end of the alkaline solution pump is connected with the first solution pipeline in a threaded mode, the right side wall of the alkaline solution tank body is provided with the first switch, and alkaline solution in the alkaline solution tank body is pumped into the first solution pipeline through the alkaline solution pump;
a solution pipeline II: one end of the solution pipeline II is in threaded connection with one end, far away from the alkaline solution pump, of the solution pipeline I, the other end of the solution pipeline II penetrates through the right side wall of the waste gas treatment box, the solution pipeline II penetrates through the waste gas treatment box and extends into the waste gas treatment box, and alkaline solution in the solution pipeline I flows into the waste gas outlet and treatment box through the solution pipeline;
a spray pipe: the spraying pipes are all embedded at the lower side of the pipeline extending into the waste gas treatment box in the solution pipeline II, a plurality of spraying holes are formed in the spraying pipes, and the alkaline solution in the solution pipeline II can uniformly scatter in the waste gas treatment box through the spraying holes formed in the spraying pipes, so that the absorption rate of the acidic gas is improved;
a flue gas cover: the flue gas hood is fixed at the upper end of the waste gas treatment box through a bolt;
a smoke exhaust pipeline: one end of the smoke exhaust pipeline is connected with a smoke outlet of the smoke exhaust hood through a buckle;
a neutralization solution collection unit: the neutralizing liquid collecting unit comprises an electromagnetic valve, a neutralizing liquid collecting box and a switch II, the neutralizing liquid collecting box is arranged between the waste gas treatment box and the alkaline solution box body, the bottom end of the right side wall of the waste gas outlet and treatment box is connected with the left side wall of the neutralizing liquid collecting box through a pipeline, the electromagnetic valve is arranged on the pipeline, the switch II is arranged on the right side wall of the neutralizing liquid collecting box, a neutralizing solution generated by the reaction of the alkaline solution and the acidic gas is scattered at the bottom end of the waste gas outlet and treatment box, the electromagnetic valve is opened, and the neutralizing solution can flow into the neutralizing liquid collecting box through the pipeline;
wherein: the input ends of the fan and the alkaline solution pump are electrically connected with the output end of the first switch, the input end of the first switch is electrically connected with the output end of the power supply through an external circuit, the input end of the electromagnetic valve is electrically connected with the output end of the second switch, and the input end of the second switch is electrically connected with the output end of the power supply through an external circuit.
Further, still include the cloth wind unit, the cloth wind unit contains cloth aerofoil and cloth tuber pipe, be equipped with the outlet flue chamber in the cloth aerofoil, and the other end threaded connection of cloth aerofoil and draught fan outlet flue connecting pipeline, the nestification of the even tilt up of cloth tuber pipe is on the right side wall of cloth aerofoil, and cloth tuber pipe horizontal direction inclines backward, the draught fan gets into the flue gas in the outlet flue connecting pipeline in the cavity of cloth aerofoil, the flue gas in this cavity flows along the cloth tuber pipe, the flue gas spiral of outflow upwards flows, make the flue gas at waste gas play arrangement incasement dwell time extension, and can make acid gas from the branch with alkaline solution acid-base neutralization.
Further, still include the atomizer, the atomizer includes that atomizer shower nozzle and fog collect the cover, and the junction of solution pipeline two and solution pipeline one is located to the atomizer, and the periphery of atomizer shower nozzle is equipped with fog and collects the cover, and the atomizer can atomize alkaline solution, and the alkaline solution after the atomizing flows into the shower, can make alkaline solution even spill full in exhaust-gas treatment incasement portion, improves acid gas's filtration efficiency, and the cover is collected to the fog is used for collecting atomizer shower nozzle spun atomizing alkaline solution.
Further, still include flue gas hood shell, filter screen and active carbon adsorption layer, there is the filter screen flue gas hood shell inside intermediate position through bolted connection, and even the embedding has SDG type adsorbent on the filter screen, and the upper end of filter screen is equipped with active carbon adsorption layer, and the SDG type adsorbent that inlays on the filter screen can take out not filterable clean acid gas in the flue gas, and active carbon adsorption layer can adsorb granule object in the flue gas, gets rid of impurity.
Compared with the prior art, the beneficial effects of the utility model are that: this waste gas filter equipment is used in acetic anhydride processing has following benefit:
1. through the air distribution pipe on the air distribution plate, the flue gas can flow upwards spirally in the waste gas treatment box, so that the retention time of the flue gas in the waste gas treatment box is prolonged, the flue gas can be uniformly distributed in the waste gas treatment box, the alkaline solution is neutralized by the acidic gas in the flue gas, and the absorption efficiency of the acidic gas is improved.
2. The atomizer atomizes the alkaline solution, the atomized alkaline solution is uniformly scattered in the waste gas treatment box through the jet flow pipe, the contact area of the alkaline solution and the flue gas is increased, and the absorption efficiency of the acid gas is improved.
3. Through the SDG2 type adsorbent that inlays on the filter screen, can absorb the acid gas that has not filtered in the flue gas once more, through the active carbon adsorption layer, can adsorb the particulate matter that contains in the flue gas, get rid of impurity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the gas flow in the waste gas treatment tank of the present invention.
In the figure: the device comprises a waste gas tank 1, a fan 2, a waste gas treatment tank 3, a neutralizing liquid collecting unit 4, an electromagnetic valve 41, a neutralizing liquid collecting tank 42, a second 43-switch alkaline solution tank 5, an alkaline solution pump 51, a first 52-switch alkaline solution tank body 53, a first 54-solution pipeline, a 6 atomizer, a spray head 61, a mist collecting cover 62, a second 7-solution pipeline, an 8-air distribution unit, an 81-air distribution plate, an 82-air distribution pipe, a 9-flue-gas cover, a 91-flue-gas cover shell, a 92 filter screen, 93 activated carbon adsorption layers, a 10-flue-gas pipeline and a 11-spray pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a waste gas filtering device for processing acetic anhydride comprises a waste gas box 1, a draught fan 2, a waste gas treatment box 3, a neutralization solution collecting unit 4, an alkaline solution box 5, a solution pipeline II 7, a spray pipe 11, a flue gas hood 9 and a smoke exhaust pipeline 10;
exhaust gas tank 1: waste gas generated in the acetic anhydride processing production process is filled in the waste gas box 1;
waste gas treatment box 3: the waste gas treatment box 3 is arranged at the right end of the waste gas box 1, and supporting legs are welded at four corners of the lower surface of the waste gas treatment box 3;
and (3) an induced draft fan 2: an air inlet of the induced draft fan 2 is connected with the right side wall of the waste gas box 1 through a pipeline, an air outlet of the induced draft fan 2 is connected with the left side wall of the waste gas treatment box 3 through a pipeline, an air distribution plate 81 is in threaded connection with the other end of a smoke outlet connecting pipeline of the induced draft fan 2, a smoke outlet cavity is arranged in the air distribution plate 81, the air distribution pipe 82 is evenly and obliquely embedded on the right side wall of the air distribution plate 81 upwards, the air distribution pipe 82 is inclined backwards in the horizontal direction, the induced draft fan 2 introduces the waste gas in the waste gas box 1 into a cavity in the air distribution plate 81, the smoke in the cavity flows out along the air distribution pipe 82, the flowing smoke flows upwards spirally, the retention time of the smoke in the waste gas treatment box 3 is prolonged, and acidic gas can be neutralized with alkaline solution;
alkaline solution tank 5: the alkaline solution tank 5 comprises an alkaline solution pump 51, a first switch 52, an alkaline solution tank body 53 and a first solution pipeline 54, the bottom end of the inside of the alkaline solution tank body 53 is connected with the alkaline solution pump 51 through a bolt, the outlet end of the alkaline solution pump 51 is connected with the first solution pipeline 54 in a threaded manner, the right side wall of the alkaline solution tank body 53 is provided with the first switch 52, and the alkaline solution in the alkaline solution tank body 53 is pumped into the first solution pipeline 54 through the alkaline solution pump 51;
a second solution pipeline 7: one end of the solution pipeline II 7 is connected with the atomizer 6, one end of the solution pipeline I54, which is far away from the alkaline solution pump 51, is connected with the other end of the atomizer 6, which is far away from the solution pipeline II 7, the other end of the solution pipeline II 7 penetrates through the right side wall of the waste gas treatment box 3, the solution pipeline II 7 penetrates and extends into the waste gas treatment box 3, and the alkaline solution in the solution pipeline I54 flows into the waste gas treatment box 3 through the solution pipeline II 7;
a spray pipe 11: the spray pipes 11 are all embedded at the lower side of the pipeline extending into the waste gas treatment box 3 from the solution pipeline II 7, a plurality of spray holes are formed in the spray pipes 11, the atomizer 6 can atomize the alkaline solution, the atomized alkaline solution flows into the spray pipes 11, the alkaline solution can be uniformly sprayed into the waste gas treatment box 3, the filtering efficiency of the acid gas is improved, the mist collection cover 62 is used for collecting the atomized alkaline solution sprayed by the atomizer spray nozzles 61, the alkaline solution in the solution pipeline II 7 can be uniformly sprayed into the waste gas treatment box 3 through the spray holes formed in the spray pipes 11, and the absorption rate of the acid gas is improved;
a flue gas cover 9: the flue gas hood 9 is fixed in the middle of the upper end of the flue gas hood shell 91 of the waste gas treatment box 3 through bolts, a filter screen 92 is connected through bolts, an SDG2 type adsorbent is uniformly embedded on the filter screen 92, an activated carbon adsorption layer 93 is arranged at the upper end of the filter screen 92, the SDG2 type adsorbent embedded on the filter screen 92 can take out acid gas which is not filtered completely from the flue gas, and the activated carbon adsorption layer 93 can adsorb particle objects in the flue gas to remove impurities;
a smoke exhaust pipeline 10: one end of the smoke exhaust pipeline 10 is connected with a smoke outlet of the smoke exhaust hood 9 through a buckle;
the neutralization solution collecting unit 4: the neutralizing liquid collecting unit 4 comprises an electromagnetic valve 41, a neutralizing liquid collecting box 42 and a second switch 43, the neutralizing liquid collecting box 42 is arranged between the waste gas treatment box 3 and the alkaline solution box body 53, the bottom end of the right side wall of the waste gas outlet and treatment box 3 is connected with the left side wall of the neutralizing liquid collecting box 42 through a pipeline, the electromagnetic valve 41 is arranged on the pipeline, the right side wall of the neutralizing liquid collecting box 42 is provided with the second switch 43, the neutralizing solution reacted by the alkaline solution and the acidic gas is scattered at the bottom end of the waste gas outlet and treatment box 3, the electromagnetic valve 41 is opened, and the neutralizing solution can flow into the neutralizing liquid collecting box 42 through the pipeline;
wherein: the input ends of the fan 2 and the alkaline solution pump 51 are both electrically connected with the output end of the first switch 52, the input end of the first switch 52 is electrically connected with the output end of the power supply through an external circuit, the input end of the electromagnetic valve 41 is electrically connected with the output end of the second switch 43, and the input end of the second switch 43 is electrically connected with the output end of the power supply through an external circuit.
When in use: opening the first switch 52, starting the operation of the induced draft fan 2 and the alkaline solution pump 51, introducing the exhaust gas in the exhaust gas box 1 into the cavity in the air distribution plate 81 through the induced draft fan 2, performing spiral upward flow in the exhaust gas treatment box 3 through the air distribution pipe 82, pumping the alkaline solution in the alkaline solution box 53 into the atomizer 6 by the alkaline solution pump 51, atomizing the alkaline solution by the atomizer 6, uniformly scattering the atomized alkaline solution in the exhaust gas treatment box 3 through the spray pipe on the solution pipeline two 7, dropping the neutralized liquid of the alkaline solution and the acidic gas into the bottom end in the exhaust gas treatment box 3, opening the electromagnetic valve 41, allowing the neutralized liquid to flow into the neutralized liquid collecting box 42 through the pipeline, absorbing the unfiltered acidic gas by the SDG2 adsorbent when the filtered exhaust gas passes through the filter screen 92, and allowing the exhaust gas to pass through the activated carbon adsorption layer 93, particulate matter impurities in the exhaust gas are removed by adsorption.
It should be noted that the number of the shower pipes 11 disclosed in this embodiment is not less than 5, the number of the air distribution pipes 82 is not less than 8, the electromagnetic valve 41 is a flange normally closed electromagnetic valve, the type of the atomizer 6 is LPG-10T, and the type of the alkaline solution pump 51 is FWQB 70-30.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an acetic anhydride is exhaust gas filter equipment for processing which characterized in that: the system comprises a waste gas box (1), an induced draft fan (2), a waste gas treatment box (3), a neutralization solution collecting unit (4), an alkaline solution box (5), a solution pipeline II (7), a spray pipe (11), a flue gas hood (9) and a smoke exhaust pipeline (10);
exhaust gas tank (1): waste gas generated in the acetic anhydride processing production process is filled in the waste gas box (1);
exhaust gas treatment tank (3): the waste gas treatment box (3) is arranged at the right end of the waste gas box (1), and supporting legs are welded at four corners of the lower surface of the waste gas treatment box (3);
an induced draft fan (2): an air inlet of the induced draft fan (2) is connected with the right side wall of the waste gas tank (1) through a pipeline, and an air outlet of the induced draft fan (2) is connected with the left side wall of the waste gas treatment tank (3) through a pipeline;
alkaline solution tank (5): the alkaline solution tank (5) comprises an alkaline solution pump (51), a first switch (52), an alkaline solution tank body (53) and a first solution pipeline (54), the bottom end of the interior of the alkaline solution tank body (53) is connected with the alkaline solution pump (51) through a bolt, the outlet end of the alkaline solution pump (51) is in threaded connection with the first solution pipeline (54), and the right side wall of the alkaline solution tank body (53) is provided with the first switch (52);
solution line two (7): one end of the solution pipeline II (7) is in threaded connection with one end, far away from the alkaline solution pump (51), of the solution pipeline I (54), the other end of the solution pipeline II (7) penetrates through the right side wall of the waste gas treatment box (3), and the solution pipeline II (7) penetrates and extends into the waste gas treatment box (3);
shower (11): the spray pipes (11) are all nested at the lower side of the pipeline extending into the waste gas treatment box (3) in the solution pipeline II (7), and a plurality of spray holes are formed in the spray pipes (11);
flue gas hood (9): the flue gas cover (9) is fixed at the upper end of the waste gas treatment box (3) through bolts;
flue gas duct (10): one end of the smoke exhaust pipeline (10) is connected with a smoke outlet of the smoke hood (9) through a buckle;
a neutralization solution collection unit (4): the neutralizing liquid collecting unit (4) comprises an electromagnetic valve (41), a neutralizing liquid collecting box (42) and a second switch (43), the neutralizing liquid collecting box (42) is arranged between the waste gas treatment box (3) and the alkaline solution box body (53), the bottom end of the right side wall of the waste gas treatment box (3) is connected with the left side wall of the neutralizing liquid collecting box (42) through a pipeline, the electromagnetic valve (41) is arranged on the pipeline, and the right side wall of the neutralizing liquid collecting box (42) is provided with the second switch (43);
wherein: the input ends of the fan (2) and the alkaline solution pump (51) are electrically connected with the output end of the first switch (52), the input end of the first switch (52) is electrically connected with the output end of the power supply through an external circuit, the input end of the electromagnetic valve (41) is electrically connected with the output end of the second switch (43), and the input end of the second switch (43) is electrically connected with the output end of the power supply through the external circuit.
2. An apparatus for filtering off-gas for processing acetic anhydride according to claim 1, wherein: still include cloth wind unit (8), cloth wind unit (8) contain cloth aerofoil (81) and cloth tuber pipe (82), be equipped with the outlet flue chamber in cloth aerofoil (81), and cloth aerofoil (81) and draught fan (2) outlet flue connecting tube's other end threaded connection, cloth tuber pipe (82) even tilt up's nestification is on the right side wall of cloth aerofoil (81), and cloth tuber pipe (82) horizontal direction inclines backward.
3. An apparatus for filtering off-gas for processing acetic anhydride according to claim 1, wherein: still include atomizer (6), cover (62) is collected to atomizer (6) including atomizer shower nozzle (61) and fog, and the junction of solution pipeline two (7) and solution pipeline (54) is located in atomizer (6), and the periphery of atomizer shower nozzle (61) is equipped with fog and collects cover (62).
4. An apparatus for filtering off-gas for processing acetic anhydride according to claim 1, wherein: still include flue gas hood shell (91), filter screen (92) and active carbon adsorption layer (93), there are filter screen (92) in the inside intermediate position of flue gas hood shell (91) through bolted connection, and even SDG2 type adsorbent has been inlayed on filter screen (92), and the upper end of filter screen (92) is equipped with active carbon adsorption layer (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263904.8U CN211302642U (en) | 2019-08-06 | 2019-08-06 | Waste gas filtering device for acetic anhydride processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263904.8U CN211302642U (en) | 2019-08-06 | 2019-08-06 | Waste gas filtering device for acetic anhydride processing |
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| Publication Number | Publication Date |
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| CN211302642U true CN211302642U (en) | 2020-08-21 |
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| CN201921263904.8U Expired - Fee Related CN211302642U (en) | 2019-08-06 | 2019-08-06 | Waste gas filtering device for acetic anhydride processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156603A (en) * | 2020-09-24 | 2021-01-01 | 山东天智信息科技有限公司 | Waste gas treatment device after household garbage incineration and purification method thereof |
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2019
- 2019-08-06 CN CN201921263904.8U patent/CN211302642U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156603A (en) * | 2020-09-24 | 2021-01-01 | 山东天智信息科技有限公司 | Waste gas treatment device after household garbage incineration and purification method thereof |
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Granted publication date: 20200821 |