CN108434961B - Industrial waste gas purification device of low energy consumption - Google Patents
Industrial waste gas purification device of low energy consumption Download PDFInfo
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- CN108434961B CN108434961B CN201810350382.9A CN201810350382A CN108434961B CN 108434961 B CN108434961 B CN 108434961B CN 201810350382 A CN201810350382 A CN 201810350382A CN 108434961 B CN108434961 B CN 108434961B
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a low-energy-consumption industrial waste gas purification device, which comprises a washing tower and a bag-type dust collector, wherein a liquid outlet and a gas inlet communicated with a waste gas source are arranged at the bottom of the washing tower, a plurality of packing layers are arranged at the middle section in the washing tower from top to bottom, a spray pipe is arranged above the packing layers and is connected with an external alkaline liquid tank, spray holes in the spray pipe are arranged towards the packing layers, an active carbon drying layer is arranged at the top in the washing tower, close to the gas outlet, a heating resistance wire is arranged in the active carbon drying layer, an insulating layer is wrapped outside the heating resistance wire, and the heating resistance wire is electrically connected with an external power supply through; and a stirring device is arranged in the alkaline liquid box, and the alkaline liquid box is connected with the soap liquid box through a feeding pipe. The device has a simple structure, can not only carry out high-efficiency desulfurization and denitrification operation on the waste gas, but also remove moisture mixed in the waste gas, and prevent the waste gas carrying the moisture from entering the bag-type dust remover and causing the moisture absorption, caking and hardening of the surface of the filter bag.
Description
Technical Field
The invention belongs to the field of environment-friendly equipment, and particularly relates to a low-energy-consumption industrial waste gas purification device.
Background
At present, with the rapid development of industrialization, how to purify waste gas generated in industrial production to eliminate sulfides, nitrates and other particulate impurities carried in the waste gas enables the waste gas to reach the standard and be discharged, so that the pollution to the atmospheric environment is avoided.
Adopt alkali lye to spray in order to the denitration of desulfurization of waste gas more among the prior art, but particulate matter can't be got rid of completely in the waste gas after the processing, still need the sack cleaner to carry out the dust removal processing to it, but the waste gas after the denitration of desulfurization is handled has certain humidity, make the filter bag surface dust caking of sack cleaner easily, sack cleaner among the prior art adopts pulser impact filter bag more simultaneously so that the filter bag shakes off the dust that the surface area was saved and prevents to block up, but the pulser also needs the energy of consumption, be unfavorable for the realization of energy-conserving purpose.
Disclosure of Invention
The invention aims to provide an industrial waste gas purification device with low energy consumption, which has a simple structure, can not only carry out high-efficiency desulfurization and denitrification operation on waste gas, but also remove moisture included in the waste gas, and prevent the waste gas carrying the moisture from entering a bag-type dust collector and causing the moisture absorption and caking hardening of the surface of a filter bag.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a low-energy-consumption industrial waste gas purification device comprises a washing tower and a bag-type dust collector, wherein an exhaust port is formed in the top of the washing tower, an air inlet of the bag-type dust collector is connected with the exhaust port of the washing tower through a pipeline, a liquid outlet and an air inlet communicated with a waste gas source are formed in the bottom of the washing tower, a plurality of packing layers are arranged in the middle section of the interior of the washing tower from top to bottom, a spray pipe is arranged above the packing layers and connected with an external lye tank, spray holes in the spray pipe are arranged towards the packing layers, an active carbon drying layer is arranged at the top of the interior of the washing tower, close to the exhaust port, a heating resistance wire is arranged in the active carbon drying layer, an insulating layer is wrapped outside; and a stirring device is arranged in the alkaline liquid box, and the alkaline liquid box is connected with the soap liquid box through a feeding pipe.
Preferably, the filler layer is filled with a ceramic sphere, and the ceramic sphere is provided with a plurality of through holes.
Preferably, the top of the bag-type dust collector is provided with an air outlet, the bottom of the bag-type dust collector is provided with an ash hopper, the interior of the bag-type dust collector is provided with a filter bag with an opening at the top, the opening at the top of the filter bag is communicated with the air outlet, the air inlet of the bag-type dust collector comprises an upper air inlet and a lower air inlet which are arranged on two sides of an outer wall, the upper air inlet is higher than the lower air inlet, a fan is arranged on a pipeline connecting the air inlet and an air outlet of the washing tower; the upper and lower integrated sleeves of the outer wall of the filter bag are provided with an upper push ring and a lower push ring, one end of an upper connecting rod and one end of a lower connecting rod which are obliquely arranged are respectively hinged with the upper push ring and the lower push ring, the other ends of the upper connecting rod and the lower connecting rod are respectively hinged with the inner wall of the bag-type dust collector, and the middle sections of the upper connecting rod and the lower connecting rod are respectively hinged with sealing doors at an upper air inlet.
Preferably, the sealing door, the push ring, the connecting rod and the push rod are made of PVC plastics.
The working process of the invention is as follows:
firstly, the soap solution in the soap solution tank is added into the alkaline solution tank by using the feeding pipe, the soap solution is uniformly stirred by using the stirring device, then the waste gas is discharged into the washing tower from the gas inlet at the bottom of the washing tower, then the alkaline solution in the alkaline solution tank is sprayed out from the spraying holes by using the spraying pipe, the alkaline solution is firstly dripped into the filler layer, and as the ceramic spheres are filled in the filler layer and the through holes are formed in the ceramic spheres, the filler layer can well adsorb the waste gas and make the waste gas fully contact with the alkaline liquid so as to remove sulfides and nitrated compounds in the waste gas, and as the soap solution is mixed in the alkaline liquid, a bubble-shaped liquid film is easily formed between the ceramic spheres and at the through holes of the ceramic spheres, and the contact area of. Of course alkaline liquid also can drip from the packing layer from top to bottom, and waste gas also can direct contact alkaline liquid carry out SOx/NOx control operation at the in-process that rises, and final waste gas contacts the dry layer of active carbon when rising to the washing tower top, and moisture in the waste gas is adsorbed by the active carbon, and the heating resistor silk also can be switched on simultaneously and dehumidify in order to heat waste gas, prevents that waste gas from carrying more moisture and getting into in the sack cleaner through the pipeline. The heating resistance wire is wrapped with an insulating layer to prevent moisture from contacting the heating resistance wire to cause a conductive phenomenon. The alkaline liquid in the washing tower is finally discharged from the liquid outlet and collected, and can be recycled.
Waste gas after SOx/NOx control handles (waste gas can effectively desorption moisture through dehumidification back and heating, prevents that moisture from getting into the sack cleaner) under the effect of fan, in the sack cleaner was discharged from the upper and lower air inlet of sack cleaner simultaneously through the pipeline: because the inner wall of the bag-type dust collector is hinged with the sealing door, and the sealing door seals the upper air inlet and the lower air inlet under the action of self weight, the sealing door needs to be opened by jacking waste gas when the waste gas enters the bag-type dust collector, and the blowing of the fan (can blow the external air into the pipeline, and can also take out the waste gas in the pipeline and blow the waste gas into the pipeline after being accelerated by the fan impeller) can give certain kinetic energy to the waste gas to open the sealing door by jacking. When sealing the door and being promoted, waste gas gets into in the sack cleaner, seals the door simultaneously and rotates around the articulated department in top, and this just causes to seal the door and drives the push rod and move up, and the push rod is articulated with the connecting rod, and the connecting rod both ends articulate sack cleaner inner wall and corresponding throw-out collar respectively, and this just causes corresponding throw-out collar to do the action of keeping away from corresponding air inlet, promptly: the sealing door at the upper air inlet drives the bottom end of the upper connecting rod to move through the corresponding push rod, so that the upper connecting rod pushes the upper push ring and the upper part of the filter bag to be far away from the upper air inlet; the sealing door at the lower air inlet drives the bottom end of the lower connecting rod to move through the corresponding push rod, so that the lower connecting rod pushes the lower push ring and the lower part of the filter bag to be far away from the lower air inlet. Therefore, the upper part and the lower part of the filter bag move reversely, so that the filter bag can shake integrally to remove dust adsorbed on the outer surface of the filter bag and prevent the dust from blocking filter holes of the filter bag. The same, when the waste gas top thrust that the door that seals reset or the door received was inhomogeneous (the fan can adopt the frequency conversion fan, can adjust the rotational speed or carry out intermittent type formula start and close, and then makes the waste gas top thrust that the door received different), also can cause the shake of filter bag, and then shakes off the dust. Finally, the waste gas passes through the filter bag, and the particulate matters are filtered by the filter bag, so that the clean gas is discharged to the outside from a gas outlet at the top of the cloth bag filter.
Dust in the bag-type dust collector falls into the dust hopper, and the dust hopper is opened by a worker at regular time to carry out dust cleaning operation.
Compared with the prior art, the invention has the following advantages: the bag-type dust collector has a simple structure and ingenious design, and the filter bag is indirectly pushed to shake by the power of waste gas entering the bag-type dust collector, so that the filter bag shakes to shake off dust.
Drawings
Fig. 1 is a schematic structural view of a low-energy consumption industrial waste gas purification apparatus according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, an industrial waste gas purification device of low energy consumption, including scrubbing tower 1 and sack cleaner 2, 1 tops of scrubbing tower are equipped with the gas vent, and the gas inlet of sack cleaner 2 passes through pipeline 3 with the gas vent of scrubbing tower 1 to be connected, 1 bottom of scrubbing tower is equipped with leakage fluid dram 17 and 16 with the income gas port of waste gas source intercommunication, and 1 inside middle section of scrubbing tower is equipped with several packing layer 11 from top to bottom, and the packing layer 11 intussuseption is filled with the ceramic spheroid, has seted up the several through-hole on the ceramic spheroid. A spray pipe 12 is arranged above the packing layer 11, the spray pipe 12 is connected with an external alkaline liquid tank 18, a spray hole 13 on the spray pipe 12 is arranged towards the packing layer 11, an activated carbon drying layer 14 is arranged at the top part in the washing tower 1 close to an exhaust port, a heating resistance wire 15 is arranged in the activated carbon drying layer 14, an insulating layer is wrapped outside the heating resistance wire 15, and the heating resistance wire 15 is electrically connected with an external power supply through a power switch; and a stirring device is arranged in the alkaline liquid tank 18, and the alkaline liquid tank 18 is connected with the soap liquid tank 19 through a feeding pipe.
The top of the bag-type dust collector 2 is provided with an air outlet, the bottom of the bag-type dust collector 2 is provided with an ash hopper 22, a filter bag 21 with an open top is arranged in the bag-type dust collector, the open top of the filter bag 21 is communicated with the air outlet, an air inlet of the bag-type dust collector 2 comprises an upper air inlet 27 and a lower air inlet 28 which are arranged on two sides of an outer wall, the upper air inlet 27 is higher than the lower air inlet 28, a fan 31 is arranged on a pipeline 3 which is connected with the air inlet and an air outlet of a washing tower, a sealing door 4 for sealing; an upper push ring 23 and a lower push ring 24 are integrally sleeved on the upper part and the lower part of the outer wall of the filter bag 21, one end of an upper connecting rod 25 and one end of a lower connecting rod 26 which are obliquely arranged are respectively hinged with the upper push ring 23 and the lower push ring 24, the other end of the upper connecting rod and the other end of the lower connecting rod are respectively hinged with the inner wall of the bag-type dust collector 2, and the middle sections of the upper connecting rod and the lower connecting rod are respectively hinged with the sealing doors.
The sealing door, the push ring, the connecting rod and the push rod are made of PVC plastics.
The working process of the invention is as follows:
firstly, the soap solution in the soap solution tank is added into the alkaline solution tank by using the feeding pipe, the soap solution is uniformly stirred by using the stirring device, then the waste gas is discharged into the washing tower from the gas inlet at the bottom of the washing tower, then the alkaline solution in the alkaline solution tank is sprayed out from the spraying holes by using the spraying pipe, the alkaline solution is firstly dripped into the filler layer, and as the ceramic spheres are filled in the filler layer and the through holes are formed in the ceramic spheres, the filler layer can well adsorb the waste gas and make the waste gas fully contact with the alkaline liquid so as to remove sulfides and nitrated compounds in the waste gas, and as the soap solution is mixed in the alkaline liquid, a bubble-shaped liquid film is easily formed between the ceramic spheres and at the through holes of the ceramic spheres, and the contact area of. Of course alkaline liquid also can drip from the packing layer from top to bottom, and waste gas also can direct contact alkaline liquid carry out SOx/NOx control operation at the in-process that rises, and final waste gas contacts the dry layer of active carbon when rising to the washing tower top, and moisture in the waste gas is adsorbed by the active carbon, and the heating resistor silk also can be switched on simultaneously and dehumidify in order to heat waste gas, prevents that waste gas from carrying more moisture and getting into in the sack cleaner through the pipeline. The heating resistance wire is wrapped with an insulating layer to prevent moisture from contacting the heating resistance wire to cause a conductive phenomenon. The alkaline liquid in the washing tower is finally discharged from the liquid outlet and collected, and can be recycled.
Waste gas after SOx/NOx control handles (waste gas can effectively desorption moisture through dehumidification back and heating, prevents that moisture from getting into the sack cleaner) under the effect of fan, in the sack cleaner was discharged from the upper and lower air inlet of sack cleaner simultaneously through the pipeline: because the inner wall of the bag-type dust collector is hinged with the sealing door, and the sealing door seals the upper air inlet and the lower air inlet under the action of self weight, the sealing door needs to be opened by jacking waste gas when the waste gas enters the bag-type dust collector, and the blowing of the fan (can blow the external air into the pipeline, and can also take out the waste gas in the pipeline and blow the waste gas into the pipeline after being accelerated by the fan impeller) can give certain kinetic energy to the waste gas to open the sealing door by jacking. When sealing the door and being promoted, waste gas gets into in the sack cleaner, seals the door simultaneously and rotates around the articulated department in top, and this just causes to seal the door and drives the push rod and move up, and the push rod is articulated with the connecting rod, and the connecting rod both ends articulate sack cleaner inner wall and corresponding throw-out collar respectively, and this just causes corresponding throw-out collar to do the action of keeping away from corresponding air inlet, promptly: the sealing door at the upper air inlet drives the bottom end of the upper connecting rod to move through the corresponding push rod, so that the upper connecting rod pushes the upper push ring and the upper part of the filter bag to be far away from the upper air inlet; the sealing door at the lower air inlet drives the bottom end of the lower connecting rod to move through the corresponding push rod, so that the lower connecting rod pushes the lower push ring and the lower part of the filter bag to be far away from the lower air inlet. Therefore, the upper part and the lower part of the filter bag move reversely, so that the filter bag can shake integrally to remove dust adsorbed on the outer surface of the filter bag and prevent the dust from blocking filter holes of the filter bag. The same, when the waste gas top thrust that the door that seals reset or the door received was inhomogeneous (the fan can adopt the frequency conversion fan, can adjust the rotational speed or carry out intermittent type formula start and close, and then makes the waste gas top thrust that the door received different), also can cause the shake of filter bag, and then shakes off the dust. Finally, the waste gas passes through the filter bag, and the particulate matters are filtered by the filter bag, so that the clean gas is discharged to the outside from a gas outlet at the top of the cloth bag filter.
Dust in the bag-type dust collector falls into the dust hopper, and the dust hopper is opened by a worker at regular time to carry out dust cleaning operation.
Claims (3)
1. A low-energy-consumption industrial waste gas purification device comprises a washing tower and a bag-type dust collector, wherein an exhaust port is formed in the top of the washing tower, and an air inlet of the bag-type dust collector is connected with the exhaust port of the washing tower through a pipeline; a stirring device is arranged in the alkaline liquid tank, and the alkaline liquid tank is connected with the soap liquid tank through a feeding pipe;
the top of the bag-type dust collector is provided with an air outlet, the bottom of the bag-type dust collector is provided with an ash bucket, a filter bag with an opening at the top is arranged in the bag-type dust collector, the opening at the top of the filter bag is communicated with the air outlet, an air inlet of the bag-type dust collector comprises an upper air inlet and a lower air inlet which are arranged on two sides of an outer wall, the upper air inlet is higher than the lower air inlet, a fan is arranged on a pipeline connecting the air inlet and an air outlet of the washing tower, a sealing; the upper and lower integrated sleeves of the outer wall of the filter bag are provided with an upper push ring and a lower push ring, one end of an upper connecting rod and one end of a lower connecting rod which are obliquely arranged are respectively hinged with the upper push ring and the lower push ring, the other ends of the upper connecting rod and the lower connecting rod are respectively hinged with the inner wall of the bag-type dust collector, and the middle sections of the upper connecting rod and the lower connecting rod are respectively hinged with sealing doors at an upper air inlet.
2. The low-energy consumption industrial waste gas purification device as claimed in claim 1, wherein the filler layer is filled with ceramic spheres, and the ceramic spheres are provided with a plurality of through holes.
3. The low power consumption industrial waste gas purification apparatus according to claim 1, wherein the sealing door, the push ring, the connecting rod and the push rod are made of PVC plastic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350382.9A CN108434961B (en) | 2018-04-18 | 2018-04-18 | Industrial waste gas purification device of low energy consumption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350382.9A CN108434961B (en) | 2018-04-18 | 2018-04-18 | Industrial waste gas purification device of low energy consumption |
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| CN108434961A CN108434961A (en) | 2018-08-24 |
| CN108434961B true CN108434961B (en) | 2020-10-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112337291A (en) * | 2020-10-23 | 2021-02-09 | 河北卓越电气有限责任公司 | Plasma desulfurization, denitrification and demercuration process |
| CN114151817A (en) * | 2021-12-17 | 2022-03-08 | 四川九洲环保科技有限责任公司 | Flue gas treatment system and treatment method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101106073B1 (en) * | 2010-05-20 | 2012-01-18 | (주)태린 | Reverse-cleaning apparatus of a filter for a high pressure dust collector |
| CN102941011A (en) * | 2012-11-26 | 2013-02-27 | 广东依科电力技术有限公司 | Spray desulfurizer and working method thereof |
| CN204261495U (en) * | 2014-11-18 | 2015-04-15 | 青岛科技大学 | A kind of inward flow filtration-type sack cleaner |
| CN104941328B (en) * | 2015-04-23 | 2017-01-25 | 中国航天员科研训练中心 | Concentric circular gas separation device |
| CN105498427A (en) * | 2016-01-26 | 2016-04-20 | 湖州南浔石淙盛艳丝绸有限公司 | Dust removing device which is used for spinning machine and provided with air blaster |
| CN206082112U (en) * | 2016-05-11 | 2017-04-12 | 合佳环保科技（昆山）有限公司 | Reverse -flow scrubbing tower |
| CN107640875A (en) * | 2016-07-21 | 2018-01-30 | 北京航天石化技术装备工程有限公司 | Energy recovery type sludge drying and incineration system |
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Effective date of registration: 20201231 Address after: 236200 Yangwei village, Chuigang Township, Yingshang County, Fuyang City, Anhui Province Patentee after: Anhui Muzhuang farming technology Co.,Ltd. Address before: Room 302, unit 2, building 5, yard 56, Beihuan Road, Zhengzhou City, Henan Province, 450000 Patentee before: Sun Peng |
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Effective date of registration: 20220426 Address after: 523000 building 3, No. 220, buchao Road, Chang'an Town, Dongguan City, Guangdong Province Patentee after: DONGGUAN DINGMAO SPRAY PURIFICATION SYSTEM Co.,Ltd. Address before: 236200 Yangwei village, Chuigang Township, Yingshang County, Fuyang City, Anhui Province Patentee before: Anhui Muzhuang farming technology Co.,Ltd. |