CN108246074B - Exhaust treatment oxidation system - Google Patents
Exhaust treatment oxidation system Download PDFInfo
- Publication number
- CN108246074B CN108246074B CN201711293535.2A CN201711293535A CN108246074B CN 108246074 B CN108246074 B CN 108246074B CN 201711293535 A CN201711293535 A CN 201711293535A CN 108246074 B CN108246074 B CN 108246074B
- Authority
- CN
- China
- Prior art keywords
- tower body
- ozone
- exhaust gas
- inlet
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003647 oxidation Effects 0.000 title claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 18
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims 3
- 239000003595 mist Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 8
- 239000002912 waste gas Substances 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
An exhaust treatment oxidation system, characterized by: comprises a front tower and a rear tower; the front tower body is divided into three areas by a first partition board and a second partition board; the first baffle is provided with a pall ring; the tower body is provided with a first viewing hole and a first material removing opening from top to bottom in the vertical direction above the first partition plate; the second separator is provided with activated carbon; the front tower body is provided with a second viewing hole and a second material removing opening from top to bottom in the vertical direction between the first partition plate and the second partition plate; the tower body is provided with an exhaust gas inlet below the second partition board; a first ozone inlet is arranged below the air inlet; the first ozone inlet is provided with an ozone distribution disc; the top end of the front tower body is provided with an exhaust hole; the inner part of the rear tower body is divided into three areas by two partition boards, namely a mist removing layer, a spraying layer and a mixing layer from top to bottom; demisting filler is arranged in the demisting layer; the top end of the spraying layer is provided with spraying; the spray is externally connected with a water source; the spraying layer is provided with spraying filler.
Description
Technical Field
The invention relates to environmental treatment, in particular to an exhaust gas treatment oxidation system.
Background
With the increasing environmental protection of humans, humans are increasingly concerned about the quality of the surrounding living environment. Oxidation towers are common waste gas treatment equipment in the market, but the oxidation towers in the prior art have insufficient oxygen activity, low ozone utilization rate and short residence time.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an exhaust gas treatment oxidation system with high ozone utilization rate and long residence time aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows:
An exhaust treatment oxidation system, characterized by: comprises a front tower and a rear tower; the front tower body is divided into three areas by a first partition board and a second partition board; the first baffle is provided with a pall ring; the tower body is provided with a first viewing hole and a first material removing opening from top to bottom in the vertical direction above the first partition plate; the second separator is provided with activated carbon; the front tower body is provided with a second viewing hole and a second material removing opening from top to bottom in the vertical direction between the first partition plate and the second partition plate; the tower body is provided with an exhaust gas inlet below the second partition board; a first ozone inlet is arranged below the air inlet; the first ozone inlet is provided with an ozone distribution disc; the top end of the front tower body is provided with an exhaust hole; the inner part of the rear tower body is divided into three areas by two partition boards, namely a mist removing layer, a spraying layer and a mixing layer from top to bottom; demisting filler is arranged in the demisting layer; the top end of the spraying layer is provided with spraying; the spray is externally connected with a water source; the spraying layer is provided with spraying fillers; the rear tower body is provided with a viewing hole and a material removing opening at the position of the spraying layer; an air inlet is arranged near the top of the mixing layer; a second ozone inlet is arranged below the air inlet; the second ozone inlet is provided with an ozone distribution disc; a plurality of air pipes are fixed on the ozone air distribution plate through a fixing bracket; the air pipes are symmetrically distributed on the ozone distribution plate; a plurality of air holes are regularly distributed on the air pipe; the bottom end of the mixing layer is provided with an observation window, and a plurality of water level monitors are arranged from high to low; the bottommost end of the rear tower body is provided with a water outlet; the water outlet is connected with a water pump; the top end of the rear tower body is provided with an air outlet; the exhaust hole is connected with the air inlet through a pipeline.
Further, the gap on the first separator is 40mm; the gap on the second separator is not more than 1.8mm.
Further, the pall ring is a PP pall ring with the diameter of 50mm; the activated carbon is columnar activated carbon, and the diameter is more than or equal to 2mm.
Further, the exhaust gas inlet and the air inlet are in a horn shape, and the air inlet is inverted.
Further, the partition plate is hollowed out, and the gap is 40mm.
Further, the demisting filler is silk screen demisting PP.
Further, the spray packing is a PP pall ring, and the diameter of the spray packing is 50mm.
Further, the spray is water.
Still further, spray layers in the rear tower body are arranged in two layers.
The beneficial effects of the invention are as follows: the structures of the first partition plate and the second partition plate enable the free area of fluid passing through the tower to occupy more than 50% of the area, and the fluid passing through the tower is larger than the porosity of the packing, so that the efficiency is improved. The ozone gas distribution plate is uniformly distributed with holes, and is in countercurrent with the exhaust gas inlet, and fully contacted and uniformly mixed. The PP pall ring has large void ratio, small pressure drop and high mass transfer efficiency, and is easy to replace; the columnar activated carbon increases the activation energy of ionic state and increases the surface contact residence time. The PP pall ring increases the effective contact area and time of three media of waste gas, water and ozone, and when liquid descends along the filler, the liquid tends to concentrate towards the tower wall because of smaller tower wall resistance, so that partial filler wetting range is poor, and the gas-liquid mass transfer area is reduced. The wire mesh demisting PP is used for high-efficiency demisting, the minimum mist drop can reach 3-5 microns, the efficiency is over 98%, corrosive liquid is prevented from being brought to later-stage equipment, and meanwhile pressure drop is small. The residence time and the activation rate of ozone on the surface of the activated carbon are prolonged, the gas distribution uniformity of waste gas is improved, and the contact area is increased under the countercurrent impact of gas, so that the oxidation efficiency is improved. The water level monitor is convenient to monitor the water level at the bottom of the tower body, alarms when the water level monitor is too high, and timely discharges accumulated water. The front tower is matched with the rear tower, so that the treatment efficiency and the ozone utilization rate are greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a schematic structural view of an ozone distribution tray.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an exhaust gas treatment oxidation system is characterized in that: comprising a front tower a and a rear tower b; the front tower body a1 is divided into three areas by a first partition board a2 and a second partition board a 3; the first baffle a2 is provided with a pall ring a21; the tower body a1 is provided with a first visual hole a22 and a first material removing opening a23 from top to bottom in the vertical direction above the first partition plate a 2; the second partition board a3 is provided with activated carbon a31; the front tower body a1 is provided with a second viewing hole a32 and a second material removing opening a33 from top to bottom in the vertical direction between the first partition plate a2 and the second partition plate a 3; the tower body a1 is provided with an exhaust gas inlet a4 below the second partition plate a 3; a first ozone inlet a5 is arranged below the air inlet a4; the first ozone air inlet a5 is provided with an ozone air distribution disc; the top end of the front tower body a1 is provided with an exhaust hole a6; the rear tower body b1 is divided into three areas by two partition boards b2, and a demisting layer b4, a spraying layer b5 and a mixing layer b6 are respectively arranged from top to bottom; a demisting filler b41 is arranged in the demisting layer b 4; the top end of the spraying layer b5 is provided with a spraying layer b51; the spray b51 is externally connected with a water source; the spraying layer b5 is provided with spraying fillers b51; the rear tower body b1 is provided with a viewing hole b52 and a material removing opening b53 at the position of the spraying layer b 5; an air inlet b7 is arranged near the top of the mixing layer b6; a second ozone inlet b8 is arranged below the air inlet b7; the second ozone inlet b8 is provided with an ozone distribution plate; a plurality of air pipes 91 are fixed on the ozone air distribution plate through a fixing bracket 9; the air pipes 91 are symmetrically distributed on the ozone distribution plate; a plurality of air holes 92 are regularly distributed on the air pipe 91; an observation window b10 is arranged at the bottom end of the mixing layer b6, and a plurality of water level monitors b11 are arranged from high to low; the bottommost end of the rear tower body b1 is provided with a water outlet b12; the water outlet b12 is connected with a water pump; the top end of the rear tower body b1 is provided with an air outlet hole b3; the exhaust hole a6 is coupled with the air inlet b7 through a pipe c.
Further, the gap on the first separator a2 is 40mm; the gap on the second separator a3 is not more than 1.8mm.
Further, the pall ring a21 is a PP pall ring with the diameter of 50mm; the activated carbon a31 is columnar activated carbon, and the diameter is more than or equal to 2mm.
Further, the exhaust gas inlet a4 and the exhaust gas inlet b7 are horn-shaped, and the inlet is inverted.
Further, the partition board b2 is hollow, and the gap is 40mm.
Further, the demister filler b41 is a wire mesh demister PP.
Further, the spraying filler b51 is a PP pall ring, and the diameter of the spraying filler b is 50mm.
Further, the spray b51 sprays water.
Still further, the spraying layer b5 in the rear tower body b1 is arranged as two layers.
The beneficial effects of the invention are as follows: the structures of the first partition plate and the second partition plate enable the free area of fluid passing through the tower to occupy more than 50% of the area, and the fluid passing through the tower is larger than the porosity of the packing, so that the efficiency is improved. The ozone gas distribution plate is uniformly distributed with holes, and is in countercurrent with the exhaust gas inlet, and fully contacted and uniformly mixed. The PP pall ring has large void ratio, small pressure drop and high mass transfer efficiency, and is easy to replace; the columnar activated carbon increases the activation energy of ionic state and increases the surface contact residence time. The PP pall ring increases the effective contact area and time of three media of waste gas, water and ozone, and when liquid descends along the filler, the liquid tends to concentrate towards the tower wall because of smaller tower wall resistance, so that partial filler wetting range is poor, and the gas-liquid mass transfer area is reduced. The wire mesh demisting PP is used for high-efficiency demisting, the minimum mist drop can reach 3-5 microns, the efficiency is over 98%, corrosive liquid is prevented from being brought to later-stage equipment, and meanwhile pressure drop is small. The residence time and the activation rate of ozone on the surface of the activated carbon are prolonged, the gas distribution uniformity of waste gas is improved, and the contact area is increased under the countercurrent impact of gas, so that the oxidation efficiency is improved. The water level monitor is convenient to monitor the water level at the bottom of the tower body, alarms when the water level monitor is too high, and timely discharges accumulated water.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (7)
1. An exhaust treatment oxidation system, characterized by: comprises a front tower (a) and a rear tower (b); the front tower body (a 1) is divided into three areas by a first partition board (a 2) and a second partition board (a 3); the first baffle plate (a 2) is provided with a pall ring (a 21); the tower body (a 1) is provided with a first viewing hole (a 22) and a first material removing opening (a 23) from top to bottom in the vertical direction above the first partition plate (a 2); the second clapboard (a 3) is provided with active carbon (a 31); the front tower body (a 1) is provided with a second viewing hole (a 32) and a second material removing opening (a 33) from top to bottom in the vertical direction between the first partition plate (a 2) and the second partition plate (a 3); the tower body (a 1) is provided with an exhaust gas inlet (a 4) below the second partition board (a 3); a first ozone inlet (a 5) is arranged below the air inlet (a 4); the first ozone inlet (a 5) is provided with an ozone distribution disc; the top end of the front tower body (a 1) is provided with an exhaust hole (a 6); the rear tower body (b 1) is divided into three areas by two partition boards (b 2), and a demisting layer (b 4), a spraying layer (b 5) and a mixing layer (b 6) are respectively arranged from top to bottom; a demisting filler (b 41) is arranged in the demisting layer (b 4); the top end of the spraying layer (b 5) is provided with a spraying layer (b 51); the spraying (b 51) is externally connected with a water source; the spraying layer (b 5) is provided with a spraying filler (b 51); the rear tower body (b 1) is provided with a viewing hole (b 52) and a material removing opening (b 53) at the position of the spraying layer (b 5); an air inlet (b 7) is arranged near the top of the mixing layer (b 6); a second ozone inlet (b 8) is arranged below the air inlet (b 7); the second ozone inlet (b 8) is provided with an ozone distribution disc; a plurality of air pipes (91) are fixed on the ozone air distribution plate through a fixing bracket (9); the air pipes (91) are symmetrically distributed on the ozone distribution plate; a plurality of air holes (92) are regularly distributed on the air pipe (91); an observation window (b 10) is arranged at the bottom end of the mixing layer (b 6), and a plurality of water level monitors (b 11) are arranged from high to low; a water outlet (b 12) is arranged at the bottommost end of the rear tower body (b 1); the water outlet (b 12) is connected with a water pump; the top end of the rear tower body (b 1) is provided with an air outlet hole (b 3); the exhaust hole (a 6) is connected with the air inlet (b 7) through a pipeline (c); the gap on the first baffle plate (a 2) is 40mm; the gap on the second separator (a 3) is not more than 1.8mm; the pall ring (a 21) is a PP pall ring with the diameter of 50mm; the active carbon (a 31) is columnar active carbon, and the diameter is more than or equal to 2mm.
2. An exhaust gas treatment oxidation system according to claim 1, wherein: the exhaust gas inlet (a 4) and the exhaust gas inlet (b 7) are in a horn shape, and the exhaust gas inlet is inverted.
3. An exhaust gas treatment oxidation system according to claim 1, wherein: the partition plate (b 2) is hollow, and the gap is 40mm.
4. An exhaust gas treatment oxidation system according to claim 1, wherein: the demisting filler (b 41) is silk screen demisting PP.
5. An exhaust gas treatment oxidation system according to claim 1, wherein: the spray packing (b 51) is a PP pall ring and has a diameter of 50mm.
6. An exhaust gas treatment oxidation system according to claim 1, wherein: the spray (b 51) sprays water.
7. An exhaust gas treatment oxidation system according to claim 1, wherein: the spraying layer (b 5) in the rear tower body (b 1) is arranged in two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711293535.2A CN108246074B (en) | 2017-12-08 | 2017-12-08 | Exhaust treatment oxidation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711293535.2A CN108246074B (en) | 2017-12-08 | 2017-12-08 | Exhaust treatment oxidation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108246074A CN108246074A (en) | 2018-07-06 |
| CN108246074B true CN108246074B (en) | 2024-05-17 |
Family
ID=62721593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711293535.2A Active CN108246074B (en) | 2017-12-08 | 2017-12-08 | Exhaust treatment oxidation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108246074B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202683055U (en) * | 2012-07-26 | 2013-01-23 | 徐州市龙泰臭氧设备制造有限公司 | Oxidation spray tower |
| CN104258715A (en) * | 2014-09-18 | 2015-01-07 | 天津市嘉腾环保设备有限公司 | Technology for treating nitric oxide waste gas by urea treatment and treatment equipment |
| CN104772013A (en) * | 2015-03-31 | 2015-07-15 | 刘艳 | Method and device for stage purification waste gas with use of ozone |
| CN105169904A (en) * | 2015-07-27 | 2015-12-23 | 浙江省环境工程有限公司 | Purification system for rubber exhaust gas in sealing strip production field |
| CN208194078U (en) * | 2017-12-08 | 2018-12-07 | 南京工大开元环保科技（滁州）有限公司 | A kind of exhaust-gas treatment oxidative system |
-
2017
- 2017-12-08 CN CN201711293535.2A patent/CN108246074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202683055U (en) * | 2012-07-26 | 2013-01-23 | 徐州市龙泰臭氧设备制造有限公司 | Oxidation spray tower |
| CN104258715A (en) * | 2014-09-18 | 2015-01-07 | 天津市嘉腾环保设备有限公司 | Technology for treating nitric oxide waste gas by urea treatment and treatment equipment |
| CN104772013A (en) * | 2015-03-31 | 2015-07-15 | 刘艳 | Method and device for stage purification waste gas with use of ozone |
| CN105169904A (en) * | 2015-07-27 | 2015-12-23 | 浙江省环境工程有限公司 | Purification system for rubber exhaust gas in sealing strip production field |
| CN208194078U (en) * | 2017-12-08 | 2018-12-07 | 南京工大开元环保科技（滁州）有限公司 | A kind of exhaust-gas treatment oxidative system |
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| Publication number | Publication date |
|---|---|
| CN108246074A (en) | 2018-07-06 |
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