CN105709536B - A kind of evaporative pattern pours into a mould waste gas treatment process - Google Patents
A kind of evaporative pattern pours into a mould waste gas treatment process Download PDFInfo
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- CN105709536B CN105709536B CN201610279459.9A CN201610279459A CN105709536B CN 105709536 B CN105709536 B CN 105709536B CN 201610279459 A CN201610279459 A CN 201610279459A CN 105709536 B CN105709536 B CN 105709536B
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- waste gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/86—Catalytic processes
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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 & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of evaporative pattern to pour into a mould waste gas treatment process, (1) side suction waste gas pretreatment；(2) pretreated waste gas passes through spraying and dedusting；(3) photocatalysis treatment；(4) charcoal absorption.The present invention is improved spray column and spray process, specifically for evaporative pattern waste gas.Treatment effeciency is high, operates steadily, high treating effect, and the gas after treating is all more than the discharge standard of national requirements.
Description
Technical field
The present invention relates to belong to exhaust-gas treatment field, and in particular to waste gas treatment process caused by a kind of evaporative pattern cast.
Background technology
Lost foam casting is because casting dimension accuracy is high, surface smoothness is good, technique wide adaptation range, simple to operate, energy
Substantially improve the series of advantages such as labor intensity and the environment of foundry worker and be cast boundary's receiving and accreditation, be described as " founder
The green revolution of industry ".Particularly during the last ten years, with the development of auto industry, China's lost foam casting, which has, more rapidly to be sent out
Exhibition, the manufacture of production line also develop from easy open file to the full automatic line of closing, and single line casting output also gradually increases, can
To say that the Technology of EPC in China enters the technology maturation phase by the technological innovation phase.It is it is contemplated that very long from now on
One period, lost foam casting process will account for a stable market share in China's Foundry Production.
Lost foam casting needs the tunica albuginea that burns when pouring into a mould, tunica albuginea is polystyrene foam plastics, is generated after tunica albuginea burning
Waste gas containing benzene type organic is discharged into air by vavuum pump, and pollution is caused to surrounding environment.At present, it is domestic unspecial
Technology and environmental protection equipment for lost foam casting production exhaust-gas treatment.
The content of the invention
For above-mentioned problem, it is an object of the invention to provide a kind of processing suitable for evaporative pattern cast waste gas
Technique.
A kind of evaporative pattern pours into a mould waste gas treatment process, carries out as follows：
(1) side suction waste gas pretreatment
Side sucks waste gas, while shines net filtration by 60 mesh and 200 mesh metals and fall the Mars contained in waste gas；
(2) pretreated waste gas passes through spraying and dedusting
Pretreated waste gas passes through spray liquid, spray-absorption sulfur-bearing organic matter and dust, and the spray liquid contains thiophilic
Bacterium, gas flow rate 1.5-2.5 meter per seconds, gas-liquid volume ratio 4.0-5.0；
(3) photocatalysis treatment
Waste gas after spraying and dedusting processing, then entered photocatalysis treatment, waste gas flow velocity 1.5-2.5 meter per seconds, irradiation intensity >=
45um/cm2；
(4) charcoal absorption
Most laggard the making a living property charcoal absorption of waste gas, the ﹪ of activated carbon benzene adsorption rate ＞ 25.
Spray column used in spraying and dedusting in above-mentioned steps (2), including tower body (3) and spiral board (5), it is characterised in that：Institute
State tower body (3) interior bottom and be provided with the spiral board (5), top is provided with watering rotary nozzle (2)；The outlet of the spiral board (5)
Fog-spray nozzle (7) is equipped with mouthful, the spray direction of the fog-spray nozzle (7) is consistent with the water conservancy diversion direction of the spiral board (5)；It is described to pour
The water spraying direction of water rotary nozzle (2) stays towards the tower body (3) inwall between tower body (3) inwall and the spiral board (5)
There is space；The spiral board (5) includes annular central blind plate (51), outer ring framework (53) and guide vane (52), the water conservancy diversion leaf
Piece (52) is fixedly connected between the blind plate (51) and outer ring framework (53), and the upper edge along the guide vane (52) is consolidated
Surely water-supply-pipe (8) is connected with, at least three fog-spray nozzles (7), the fog-spray nozzle (7) are evenly distributed with the water-supply-pipe (8)
Communicated with the water-supply-pipe (8), the axis of the fog-spray nozzle (7) is parallel with the guide vane (52), and the vertical water-supply-pipe
(8)。
Above-mentioned outer ring framework (53) is fixedly connected on the tower body (3) inwall by least three gun iron link seats (6),
The gun iron link seat (6) is evenly distributed on outer ring framework (53) excircle.This spray equipment, particular for disappearance
Mould waste gas specially designs, and spray liquid with airflow direction, moved together before this, was absorbed, and improves the effect that dust granules are captured
Rate, after spray liquid reaches certain altitude, it can decline again with being collided in the waste gas of rising between solid soot dust granule and drop
And interception, under cohesion, the particle diameter of particle constantly increases, while when high-temperature flue gas is to liquid conductive heat, grit is dropped
Temperature, makes aqueous vapor be condensate in particle surface, the increase of mass particle, it is easier to mutually traps, is got rid of to tower wall by inertial collision.
Waste gas after above-mentioned steps (4) charcoal absorption, by blower fan exhausting through 15m high altitude discharges.
Beneficial effect：The present invention is improved spray column and spray process, specifically for evaporative pattern waste gas.Processing effect
Rate is high, operates steadily, high treating effect, and the gas after treating is all more than the discharge standard of national requirements.
Brief description of the drawings
Fig. 1 is the integrally-built schematic diagram of lacquer spraying waste gas dust arrester；
Fig. 2 is the structural representation of lacquer spraying waste gas dust arrester middle sleeve.
Embodiment
Embodiment 1
A kind of evaporative pattern pours into a mould waste gas treatment process, carries out as follows：
(1) side suction waste gas pretreatment
Side sucks waste gas, while shines net filtration by 60 mesh and 200 mesh metals and fall the Mars contained in waste gas；
(2) pretreated waste gas passes through spraying and dedusting
Pretreated waste gas passes through spray liquid, sprays spray-absorption sulfur-bearing organic matter and dust, the spray liquid contain
Thiophilic, the meter per second of gas flow rate 1.5, gas-liquid volume ratio 4.0；
(3) photocatalysis treatment
Waste gas after spraying and dedusting processing, then entered photocatalysis treatment, the meter per second of waste gas flow velocity 1.5, irradiation intensity >=
45um/cm2；
(4) charcoal absorption
Most laggard the making a living property charcoal absorption of waste gas, the ﹪ of activated carbon benzene adsorption rate ＞ 25.
Spray column used in spraying and dedusting in the step (2), including tower body 3 and spiral board 5, bottom is set in the tower body 3
There is the spiral board 5, top is provided with watering rotary nozzle 2；Fog-spray nozzle 7 is equipped with the gas outlet of the spiral board 5, the spraying
First 7 spray direction is consistent with the water conservancy diversion direction of the spiral board 5；The water spraying direction of the watering rotary nozzle 2 is described in
The inwall of tower body 3, space is left between the inwall of tower body 3 and the spiral board 5；The spiral board 5 include annular central blind plate 51,
Outer ring framework 53 and guide vane 52, the guide vane 52 are fixedly connected between the blind plate 51 and outer ring framework 53, along
The upper edge of the guide vane 52 is fixedly connected with water-supply-pipe 8, and at least three sprays are evenly distributed with the water-supply-pipe 8
Mist first 7, the fog-spray nozzle 7 communicate with the water-supply-pipe 8, and the axis of the fog-spray nozzle 7 is parallel with the guide vane 52, and vertical institute
State water-supply-pipe 8.The outer ring framework 53 is fixedly connected on the inwall of tower body 3 by least three gun iron link seats 6, described
Gun iron link seat 6 is evenly distributed on the excircle of outer ring framework 53.Waste gas after step 4 charcoal absorption, pass through
Blower fan exhausting is through 15m high altitude discharges.
Embodiment 2
A kind of evaporative pattern pours into a mould waste gas treatment process, carries out as follows：
(1) side suction waste gas pretreatment
Side sucks waste gas, while shines net filtration by 60 mesh and 200 mesh metals and fall the Mars contained in waste gas；
(2) pretreated waste gas passes through spraying and dedusting
Pretreated waste gas passes through spray liquid, spray-absorption sulfur-bearing organic matter and dust, and the spray liquid contains thiophilic
Bacterium, the meter per second of gas flow rate 2.5, gas-liquid volume ratio 5.0；
(3) photocatalysis treatment
Waste gas after spraying and dedusting processing, then entered photocatalysis treatment, the meter per second of waste gas flow velocity 2.5, irradiation intensity >=
45um/cm2；
(4) charcoal absorption
Most laggard the making a living property charcoal absorption of waste gas, the ﹪ of activated carbon benzene adsorption rate ＞ 25.
Spray column used in spraying and dedusting in the step (2), including tower body 3 and spiral board 5, bottom is set in the tower body 3
There is the spiral board 5, top is provided with watering rotary nozzle 2；Fog-spray nozzle 7 is equipped with the gas outlet of the spiral board 5, the spraying
First 7 spray direction is consistent with the water conservancy diversion direction of the spiral board 5；The water spraying direction of the watering rotary nozzle 2 is described in
The inwall of tower body 3, space is left between the inwall of tower body 3 and the spiral board 5；The spiral board 5 include annular central blind plate 51,
Outer ring framework 53 and guide vane 52, the guide vane 52 are fixedly connected between the blind plate 51 and outer ring framework 53, along
The upper edge of the guide vane 52 is fixedly connected with water-supply-pipe 8, and at least three sprays are evenly distributed with the water-supply-pipe 8
Mist first 7, the fog-spray nozzle 7 communicate with the water-supply-pipe 8, and the axis of the fog-spray nozzle 7 is parallel with the guide vane 52, and vertical institute
State water-supply-pipe 8.The outer ring framework 53 is fixedly connected on the inwall of tower body 3 by least three gun iron link seats 6, described
Gun iron link seat 6 is evenly distributed on the excircle of outer ring framework 53.Waste gas after step 4 charcoal absorption, pass through
Blower fan exhausting is through 15m high altitude discharges.
Embodiment 3
A kind of evaporative pattern pours into a mould waste gas treatment process, carries out as follows：
(1) side suction waste gas pretreatment
Side sucks waste gas, while shines net filtration by 60 mesh and 200 mesh metals and fall the Mars contained in waste gas；
(2) pretreated waste gas passes through spraying and dedusting
Pretreated waste gas passes through spray liquid, spray-absorption sulfur-bearing organic matter and dust, the spray liquid contain containing
Thiophilic, the meter per second of gas flow rate 2, gas-liquid volume ratio 4.5；
(3) photocatalysis treatment
Waste gas after spraying and dedusting processing, then entered photocatalysis treatment, the meter per second of waste gas flow velocity 2, irradiation intensity >=45um/
cm2；
(4) charcoal absorption
Most laggard the making a living property charcoal absorption of waste gas, the ﹪ of activated carbon benzene adsorption rate ＞ 25.
Spray column used in spraying and dedusting in the step 2, including tower body 3 and spiral board 5, bottom is provided with the tower body 3
The spiral board 5, top are provided with watering rotary nozzle 2；Fog-spray nozzle 7 is equipped with the gas outlet of the spiral board 5, the fog-spray nozzle
7 spray direction is consistent with the water conservancy diversion direction of the spiral board 5；The water spraying direction of the watering rotary nozzle 2 is towards the tower
The inwall of body 3, space is left between the inwall of tower body 3 and the spiral board 5；The spiral board 5 includes annular central blind plate 51, outer
Ring box frame 53 and guide vane 52, the guide vane 52 is fixedly connected between the blind plate 51 and outer ring framework 53, along institute
The upper edge for stating guide vane 52 is fixedly connected with water-supply-pipe 8, and at least three sprayings are evenly distributed with the water-supply-pipe 8
First 7, the fog-spray nozzle 7 communicates with the water-supply-pipe 8, and the axis of the fog-spray nozzle 7 is parallel with the guide vane 52, and vertical described
Water-supply-pipe 8.The outer ring framework 53 is fixedly connected on the inwall of tower body 3 by least three gun iron link seats 6, the steel
Property connecting seat 6 is evenly distributed on the excircle of outer ring framework 53.Waste gas after step 4 charcoal absorption, by wind
Machine exhausting is through 15m high altitude discharges.
Claims (3)
1. a kind of evaporative pattern pours into a mould waste gas treatment process, carry out as follows：
（1）Side suction waste gas pretreatment
Side sucks waste gas, while filters out the Mars contained in waste gas by 60 mesh and 200 mesh metallic sieves；
（2）Pretreated waste gas passes through spraying and dedusting
Pretreated waste gas passes through spray liquid, spray-absorption sulfur-bearing organic matter and dust, and the spray liquid contains thiophilic, gas
Rate of flow of fluid 1.5-2.5 meter per seconds, gas-liquid volume ratio 4.0-5.0；
（3）Photocatalysis treatment
Waste gas after spraying and dedusting processing, then by photocatalysis treatment, waste gas flow velocity 1.5-2.5 meter per seconds, irradiation intensity >=
45um/cm2；
（4）Charcoal absorption
Most laggard the making a living property charcoal absorption of waste gas, the ﹪ of activated carbon benzene adsorption rate ＞ 25；
The step（2）Spray column used in middle spraying and dedusting, including tower body（3）And spiral board（5）, the tower body（3）Interior bottom
Provided with the spiral board（5）, top is provided with watering rotary nozzle（2）；The spiral board（5）Gas outlet at be equipped with fog-spray nozzle
（7）, the fog-spray nozzle（7）Spray direction and the spiral board（5）Water conservancy diversion direction it is consistent；The watering rotary nozzle（2）'s
Water spraying direction is towards the tower body（3）Inwall, the tower body（3）Inwall and the spiral board（5）Between leave space；The eddy flow
Plate（5）Including annular central blind plate（51）, outer ring framework（53）And guide vane（52）, the guide vane（52）It is fixedly connected on
The blind plate（51）With outer ring framework（53）Between, along the guide vane（52）Upper edge be fixedly connected with water-supply-pipe
（8）, in the water-supply-pipe（8）On be evenly distributed with least three fog-spray nozzles（7）, the fog-spray nozzle（7）With the water-supply-pipe（8）
Communicate, the fog-spray nozzle（7）Axis and the guide vane（52）It is parallel, and the vertical water-supply-pipe（8）.
A kind of 2. evaporative pattern cast waste gas treatment process according to claim 1, it is characterised in that：The outer ring framework（53）
Pass through at least three gun iron link seats（6）It is fixedly connected on the tower body（3）On inwall, the gun iron link seat（6）Uniformly divide
Cloth is in the outer ring framework（53）On excircle.
A kind of 3. evaporative pattern cast waste gas treatment process according to claim 1, it is characterised in that：The step（4）Activity
Waste gas after charcoal absorption, by blower fan exhausting through 15m high altitude discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279459.9A CN105709536B (en) | 2016-04-28 | 2016-04-28 | A kind of evaporative pattern pours into a mould waste gas treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279459.9A CN105709536B (en) | 2016-04-28 | 2016-04-28 | A kind of evaporative pattern pours into a mould waste gas treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105709536A CN105709536A (en) | 2016-06-29 |
| CN105709536B true CN105709536B (en) | 2017-11-17 |
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ID=56162135
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610279459.9A Active CN105709536B (en) | 2016-04-28 | 2016-04-28 | A kind of evaporative pattern pours into a mould waste gas treatment process |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578027B (en) * | 2021-07-16 | 2023-12-26 | 江苏中德涂装环保设备科技有限公司 | Baking finish house exhaust gas purification equipment |
| CN116972397B (en) * | 2023-09-15 | 2023-12-26 | 上海兄弟微电子技术有限公司 | Device for safely burning and automatically removing dust during spontaneous combustion gas discharge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277006A (en) * | 1991-03-01 | 1992-10-02 | Sumitomo Heavy Ind Ltd | Dry exhaust gas treatment apparatus of waste refuse incinerator |
| CN102600692A (en) * | 2012-03-05 | 2012-07-25 | 广东东日环保有限公司 | Purifying device for industrial organic waste gas |
| CN203436985U (en) * | 2013-08-06 | 2014-02-19 | 上海贺林斯顿机电设备有限公司 | Waste gas treatment device |
| CN203648389U (en) * | 2014-01-03 | 2014-06-18 | 青岛北方节能环保有限公司 | Combined device for treating high-temperature and high-concentration organic waste gas by catalytic oxidation |
| CN105396411A (en) * | 2015-12-11 | 2016-03-16 | 天紫工程管理（天津）有限公司 | Eddy flow washing dedusting device |
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2016
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| CN105709536A (en) | 2016-06-29 |
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Address after: 400042 C1 3 floor, headquarters city, Yuzhong District, Chongqing Patentee after: Chongqing positive environmental protection Polytron Technologies Inc Address before: 400020 Chongqing Jiangbei District No. 7 Jin Yuan Road, 22 floor, block B Patentee before: CHONGQING YZ ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |