CN114905616A - Still kettle exhaust treatment device - Google Patents
Still kettle exhaust treatment device Download PDFInfo
- Publication number
- CN114905616A CN114905616A CN202210455966.9A CN202210455966A CN114905616A CN 114905616 A CN114905616 A CN 114905616A CN 202210455966 A CN202210455966 A CN 202210455966A CN 114905616 A CN114905616 A CN 114905616A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- exhaust
- still kettle
- neutralization tank
- treatment device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 29
- 230000030279 gene silencing Effects 0.000 claims abstract description 23
- 244000035744 Hura crepitans Species 0.000 claims abstract description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 39
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
An exhaust treatment device of a still kettle comprises a sand box filled with quartz sand, wherein a neutralization tank, a snakelike coil pipe and a silencing cylinder are arranged in the sand box; wherein the neutralization tank is connected with the still kettle and is used for neutralizing ammonia gas in the exhaust gas of the still kettle; an exhaust port of the silencing cylinder is arranged outside the sand box, one end of the serpentine coil is connected with an air outlet of the neutralization tank, and the other end of the serpentine coil is connected with an air inlet of the silencing cylinder. The heat exchanger absorbs the heat energy in the exhaust gas, the neutralization tank neutralizes the ammonia gas in the exhaust gas, and the particulate matters in the exhaust gas are filtered, so that the exhaust gas from the autoclave meets the requirements of energy conservation and environmental protection. Particularly, the invention reduces the flow speed of exhaust through the serpentine coil and the silencing cylinder, and avoids the generation of squeaking sound.
Description
Technical Field
The invention relates to the field of novel building materials, in particular to an exhaust treatment device of a still kettle.
Background
The autoclave is necessary equipment for producing novel building material products such as aerated bricks, and the air pressure in the autoclave is generally kept at about 1.0Mpa after the autoclave finishes the autoclaving of the building blocks. In order to save energy, a plurality of enterprises use the connecting pipes to pour gas between the autoclaves, and part of high-pressure steam is changed into other autoclaves before opening the autoclaves, so as to save the consumption of the high-pressure steam. However, no matter how many stages of gas dumping are adopted, a part of high-pressure steam is always exhausted before the kettle is opened. Because the kettle contains irritant gases such as ammonia gas and the like, the direct evacuation can cause pollution to the environment. In addition, the flow velocity of the gas in the kettle is very high during emptying, which can generate very large noise and cause damage to the hearing of people. Therefore, it is necessary to treat the exhaust gas from the autoclave.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses an exhaust treatment device of a still kettle, which aims to: the exhaust from the still kettle meets the requirement of environmental protection.
In order to achieve the purpose, the invention adopts the following technical scheme:
an exhaust treatment device of a still kettle comprises a sand box filled with quartz sand, wherein a neutralization tank, a snake-shaped coil pipe and a silencing cylinder are arranged in the sand box; wherein the neutralization tank is connected with the still kettle and is used for neutralizing ammonia gas from the exhaust gas of the still kettle; an exhaust port of the silencing cylinder is arranged outside the sand box, one end of the serpentine coil is connected with an air outlet of the neutralization tank, and the other end of the serpentine coil is connected with an air inlet of the silencing cylinder.
Further improve technical scheme, the neutralizing tank is equipped with feed liquor pipe and drain pipe, and the feed liquor pipe is used for letting in acid liquid in the neutralizing tank, and the drain pipe is used for discharging the surplus liquid in the neutralizing tank.
Further improves the technical proposal that a liquid level window is arranged on the neutralization tank.
The technical scheme is further improved, and a heat exchanger is arranged between an exhaust inlet pipe of the neutralization tank and an exhaust outlet pipe of the still kettle.
Further improve technical scheme, the noise reduction section of thick bamboo has a plurality of chambeies that separate, is provided with the switching-over air duct between each separates the chamber.
Further improves the technical proposal that an air filter is arranged at the air outlet of the silencing cylinder.
Due to the adoption of the technical scheme, compared with the background technology, the invention has the following beneficial effects:
the heat exchanger absorbs the heat energy in the exhaust gas, the neutralization tank neutralizes the ammonia gas in the exhaust gas, and the particulate matters in the exhaust gas are filtered, so that the exhaust gas from the autoclave meets the requirements of energy conservation and environmental protection. Particularly, the invention reduces the flow speed of exhaust through the serpentine coil and the silencing cylinder, and avoids the generation of squeaking sound.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the muffling cartridge.
In the figure: 1. a sand box; 2. a neutralization tank; 21. an exhaust inlet pipe; 22. a liquid inlet pipe; 23. a liquid outlet pipe; 24. a liquid level window; 3. a serpentine coil; 4. a sound-deadening cylinder; 41. a compartment; 42. a reversing gas guide tube; 43. a muffler pipe; 5. a heat exchanger; 6. an air filter; 7. and (4) quartz sand.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
An exhaust gas treatment device of a still kettle, as shown in figure 1, comprises a sand box 1 filled with quartz sand 7, and a neutralization tank 2, a serpentine coil 3 and an anechoic cylinder 4 are arranged in the sand box 1. Wherein neutralization tank 2 is connected to an autoclave (not shown in the figure) for neutralizing ammonia gas from the autoclave exhaust. An exhaust port of the silencing cylinder 4 is arranged outside the sand box 1, one end of the serpentine coil 3 is connected with an air outlet of the neutralization tank 2, and the other end of the serpentine coil is connected with an air inlet of the silencing cylinder 4. The structure and the function of the present invention will be described in detail below.
After air is removed, the air pressure in the still kettle is still about 0.3-0.4Mpa and the temperature is 110-120 ℃. In order to recover the heat energy in the exhaust gas, a heat exchanger 5 is firstly arranged between the exhaust gas inlet pipe 21 of the neutralization tank 2 and the exhaust gas outlet pipe of the autoclave, and the heat exchanger 5 can absorb the heat energy in the exhaust gas and transfer the heat energy to other heat utilization equipment. After the heat exchange of the heat exchanger 5, the temperature of the exhaust gas in the exhaust gas inlet pipe 21 can be reduced to 60-65 ℃.
Since exhaust gas contains irritant gases such as ammonia, the exhaust gas is also subjected to neutralization treatment. As shown in fig. 1, the exhaust gas enters the neutralization tank 2 through the exhaust gas inlet pipe 21, and undergoes a neutralization reaction with the acidic liquid to remove ammonia gas from the exhaust gas. The neutralization tank 2 is provided with a liquid inlet pipe 22 and a liquid outlet pipe 23, and the liquid inlet pipe 22 is used for supplementing acid liquid into the neutralization tank 2. The liquid outlet pipe 23 is used for discharging redundant liquid in the neutralization tank 2, and the neutralization effect on ammonia gas can be known by detecting the pH value of discharged liquid. In order to know the liquid level information, a liquid level window 24 is provided on the neutralization tank 2.
The neutralized exhaust gas enters the serpentine coil 3. Because the exhaust gas has higher velocity of flow, and serpentine coil 3 has great elasticity moreover, when the exhaust gas circulates in serpentine coil 3, except taking place many times the reversal, still can make serpentine coil 3 take place the shake. The flow velocity is reduced by the multiple turn-back and reversing of the exhaust gas, and the kinetic energy of the exhaust gas is converted into heat energy and released. The shaking of the serpentine 3 also dissipates much of the kinetic energy of the exhaust gas, further reducing the exhaust flow rate. The shaking of the serpentine 3 does not generate additional noise due to the wrapping of the quartz sand 7.
The muffling cylinder 4 is used to reduce the squeal generated by the exhaust gas. Specifically, in the present embodiment, two muffling barrels 4 are provided, and the two muffling barrels 4 are connected in series. Each muffling cartridge 4 has three compartments 41 with a reversing gas duct 42 disposed between each compartment 41. The exhaust gas enters the separation chamber 41, the flow rate is reduced after the volume expansion, and then the kinetic energy of the exhaust gas is converted into heat energy continuously through the reversing of the reversing air duct 42 and is released. The last-stage partition chamber 41 is internally provided with a silencing pipe 43, and a plurality of silencing holes are arranged on the silencing pipe 43 in an array manner and can reduce exhaust squeaking. An air filter 6 is arranged at the air outlet of the silencing cylinder 4, and the air filter 6 can filter particulate matters in the exhaust air and prevent the particulate matters from polluting the atmosphere.
It is to be noted that, in the present embodiment, the flask 1 is sealed, and the sealed flask 1 can reduce the propagation of noise in the environment. Compared with the common silencing material, the quartz sand 7 has higher density and better sound insulation performance, and particularly, certain gaps exist among particles of the quartz sand 7, so that the quartz sand can play a role similar to silencing holes. In addition, the serpentine 3 is not subjected to excessive vibration and noise due to the support and wrapping of the quartz sand 7.
According to the invention, the heat energy in the exhaust gas is absorbed by the heat exchanger 5, the ammonia gas in the exhaust gas is neutralized by the neutralization tank 2, the exhaust gas squeaking sound is reduced by the silencing cylinder 4, and the particulate matters in the exhaust gas are filtered, so that the exhaust gas meets the requirements of energy conservation and environmental protection.
The details of which are not described in the prior art. 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 (6)
1. An exhaust treatment device of a still kettle is characterized in that: the sand box comprises a sand box filled with quartz sand, and a neutralization tank, a serpentine coil and a silencing cylinder are arranged in the sand box; wherein the neutralization tank is connected with the still kettle and is used for neutralizing ammonia gas from the exhaust gas of the still kettle; an exhaust port of the silencing cylinder is arranged outside the sand box, one end of the serpentine coil is connected with an air outlet of the neutralization tank, and the other end of the serpentine coil is connected with an air inlet of the silencing cylinder.
2. The exhaust gas treatment device for the autoclave as set forth in claim 1, wherein: the neutralizing tank is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is used for introducing acidic liquid into the neutralizing tank, and the liquid outlet pipe is used for discharging redundant liquid in the neutralizing tank.
3. The exhaust gas treatment device for the autoclave as set forth in claim 2, wherein: a liquid level window is arranged on the neutralization tank.
4. The exhaust gas treatment device for the autoclave as set forth in claim 1, wherein: a heat exchanger is arranged between the exhaust inlet pipe of the neutralization tank and the exhaust outlet pipe of the still kettle.
5. The exhaust gas treatment device for still kettle according to claim 1, wherein: the silencing barrel is provided with a plurality of separated cavities, and reversing air guide pipes are arranged among the separated cavities.
6. The exhaust gas treatment device for still kettle according to claim 1, wherein: an air filter is arranged at the air outlet of the silencing cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210455966.9A CN114905616A (en) | 2022-04-28 | 2022-04-28 | Still kettle exhaust treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210455966.9A CN114905616A (en) | 2022-04-28 | 2022-04-28 | Still kettle exhaust treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114905616A true CN114905616A (en) | 2022-08-16 |
Family
ID=82763974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210455966.9A Pending CN114905616A (en) | 2022-04-28 | 2022-04-28 | Still kettle exhaust treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114905616A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0299709A (en) * | 1988-10-05 | 1990-04-11 | Nissan Motor Co Ltd | Muffler |
| JP2002137220A (en) * | 2000-11-07 | 2002-05-14 | Satoru Shibata | Steam curing tank for concrete product |
| CN201443477U (en) * | 2009-06-29 | 2010-04-28 | 山东长星风电科技有限公司 | Muffling structure of tower cylinder for wind power generation |
| CN204700975U (en) * | 2015-06-25 | 2015-10-14 | 湖北腾宝新材料有限公司 | A kind of steam-cured still with noise reduction, complementary energy recovery device |
| CN107174940A (en) * | 2017-07-13 | 2017-09-19 | 衡阳屹顺化工有限公司 | A kind of calcium carbide stove exhaust recycle device |
| CN207486318U (en) * | 2017-10-26 | 2018-06-12 | 白银永兴盛建材有限公司 | Still kettle exhaust pipe silencer |
| CN208315191U (en) * | 2018-05-21 | 2019-01-01 | 江苏恒力化纤股份有限公司 | A kind of muffler |
| CN209317426U (en) * | 2018-12-24 | 2019-08-30 | 洛阳华荣生物技术有限公司 | A kind of high-temperature sterilization steam treatment tapping equipment for D-Ser production |
| CN209552049U (en) * | 2018-11-30 | 2019-10-29 | 常山英鸿新型建材有限公司 | A kind of steam-cured room of autoclave aerated concrete building block production |
| CN209794116U (en) * | 2019-04-03 | 2019-12-17 | 曲水标威新型建材有限公司 | Aerated brick still kettle system convenient for tail gas treatment |
| CN211450902U (en) * | 2019-12-10 | 2020-09-08 | 侯先贵 | Circulating fluidized bed boiler flue gas waste heat recovery utilizes device |
| CN112096975A (en) * | 2020-09-29 | 2020-12-18 | 李林龙 | Silencing gas conveying pipeline for air purifier |
| CN112169541A (en) * | 2020-09-23 | 2021-01-05 | 怀化市恒渝新材料有限公司 | Tail gas processing apparatus is used in photoinitiator production |
| CN213260126U (en) * | 2020-07-09 | 2021-05-25 | 宝鸡市方大建材有限公司 | Silencer for still kettle |
| CN213840024U (en) * | 2020-10-28 | 2021-07-30 | 滨州市滨北百奥再生资源有限公司 | Drainage and exhaust silencer for autoclaved aerated block |
| CN214618219U (en) * | 2021-04-16 | 2021-11-05 | 上海静源消声设备工程有限公司 | Bent pipe silencer |
| CN215810389U (en) * | 2021-09-01 | 2022-02-11 | 江门市锦辉纸品有限公司 | Aerated concrete block evaporates foster cauldron waste heat retrieval and utilization device |
-
2022
- 2022-04-28 CN CN202210455966.9A patent/CN114905616A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0299709A (en) * | 1988-10-05 | 1990-04-11 | Nissan Motor Co Ltd | Muffler |
| JP2002137220A (en) * | 2000-11-07 | 2002-05-14 | Satoru Shibata | Steam curing tank for concrete product |
| CN201443477U (en) * | 2009-06-29 | 2010-04-28 | 山东长星风电科技有限公司 | Muffling structure of tower cylinder for wind power generation |
| CN204700975U (en) * | 2015-06-25 | 2015-10-14 | 湖北腾宝新材料有限公司 | A kind of steam-cured still with noise reduction, complementary energy recovery device |
| CN107174940A (en) * | 2017-07-13 | 2017-09-19 | 衡阳屹顺化工有限公司 | A kind of calcium carbide stove exhaust recycle device |
| CN207486318U (en) * | 2017-10-26 | 2018-06-12 | 白银永兴盛建材有限公司 | Still kettle exhaust pipe silencer |
| CN208315191U (en) * | 2018-05-21 | 2019-01-01 | 江苏恒力化纤股份有限公司 | A kind of muffler |
| CN209552049U (en) * | 2018-11-30 | 2019-10-29 | 常山英鸿新型建材有限公司 | A kind of steam-cured room of autoclave aerated concrete building block production |
| CN209317426U (en) * | 2018-12-24 | 2019-08-30 | 洛阳华荣生物技术有限公司 | A kind of high-temperature sterilization steam treatment tapping equipment for D-Ser production |
| CN209794116U (en) * | 2019-04-03 | 2019-12-17 | 曲水标威新型建材有限公司 | Aerated brick still kettle system convenient for tail gas treatment |
| CN211450902U (en) * | 2019-12-10 | 2020-09-08 | 侯先贵 | Circulating fluidized bed boiler flue gas waste heat recovery utilizes device |
| CN213260126U (en) * | 2020-07-09 | 2021-05-25 | 宝鸡市方大建材有限公司 | Silencer for still kettle |
| CN112169541A (en) * | 2020-09-23 | 2021-01-05 | 怀化市恒渝新材料有限公司 | Tail gas processing apparatus is used in photoinitiator production |
| CN112096975A (en) * | 2020-09-29 | 2020-12-18 | 李林龙 | Silencing gas conveying pipeline for air purifier |
| CN213840024U (en) * | 2020-10-28 | 2021-07-30 | 滨州市滨北百奥再生资源有限公司 | Drainage and exhaust silencer for autoclaved aerated block |
| CN214618219U (en) * | 2021-04-16 | 2021-11-05 | 上海静源消声设备工程有限公司 | Bent pipe silencer |
| CN215810389U (en) * | 2021-09-01 | 2022-02-11 | 江门市锦辉纸品有限公司 | Aerated concrete block evaporates foster cauldron waste heat retrieval and utilization device |
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