CN105536436A - Organic waste gas purification device and purification method aiming at asphalt processing production - Google Patents
Organic waste gas purification device and purification method aiming at asphalt processing production Download PDFInfo
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- CN105536436A CN105536436A CN201511008185.1A CN201511008185A CN105536436A CN 105536436 A CN105536436 A CN 105536436A CN 201511008185 A CN201511008185 A CN 201511008185A CN 105536436 A CN105536436 A CN 105536436A
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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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
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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
- B01D47/14—Packed scrubbers
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
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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
- B01D53/14—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 by absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/12—Fan arrangements for providing forced draft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an organic waste gas purification device and purification method aiming at asphalt processing production. The organic waste gas purification device is used for treating asphaltexhaust gas produced in heating and stirring procedures of asphalt and structurally comprises a gas collection hood, a waste gas collection air pipe, a primary spraying tower, a secondary spraying tower, an active carbon adsorption device, a centrifugal fan and a gas discharging pipeline which are arranged in sequence. The organic waste gas purification device collects organic waste gas firstly, and then performs secondary spraying absorption and active carbon adsorption purification, thus ensuring standard discharging of treated waste gas. The process is high in removal efficiency, lower in operation cost, convenient to operate and favorable for comprehensive utilization.
Description
Technical field
The present invention relates to environmental protection equipment design field, relate generally to a kind of cleaning equipment for waste organic gas for pitch processing generation and purification method, especially produce the organic exhaust gas of curing oven generation for pitch processing.
Background technology
Existing production pitch used is first heated by heat-conducting oil furnace, send in stir storehouse via bitumenpump again, therefore bitumen flue gas can be produced at asphalt heating and mix and blend operation, process gas is not if processed, surrounding air environment quality can be affected, and by human body respiration or direct effect human body, the respiratory system, blood, cardiopulmonary, liver, mucous membrane, eyes, nerve etc. of human body are damaged, also directly can injure people by skin.Existing workshop is configured with exhaust facility, effectively reduces the stop of waste gas in workshop, but can not realize effectively process to waste gas.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of cleaning equipment for waste organic gas for pitch processing generation and purification method, the organic exhaust gas of curing oven generation is produced for pitch processing, design the machine waste gas purification apparatus being applicable to pitch processing and producing, adopt the scheme of spray+charcoal absorption, guarantee qualified discharge after bitumen flue gas process, be intended to solve existing pitch and add the problem that trade union produces organic exhaust gas.
Technical scheme of the present invention is as follows:
A kind of cleaning equipment for waste organic gas produced for pitch processing, it is characterized in that, the bitumen flue gas that described cleaning equipment for waste organic gas produces in heating and mix and blend operation for the treatment of pitch, its structure comprises the gas skirt, gas sampling airduct, one-level spray column, secondary spray column, absorbent charcoal adsorber, centrifugal fan and the discharge duct that set gradually;
Described gas skirt is arranged at the top of curing oven, and described gas skirt is connected with one-level spray column by described gas sampling airduct; Described secondary spray column is connected with one-level spray column with absorbent charcoal adsorber respectively; Described absorbent charcoal adsorber is connected with the air intake of centrifugal fan; The outlet air end of described centrifugal fan is connected with discharge duct.
Described cleaning equipment for waste organic gas, wherein, described one-level spray column is identical with the structure of secondary spray column, comprises tower body, three layers of packing layer, three layers of spraying layer, gas-liquid separator, circulating water pool and feeding spraying pump; Described tower body inside sets gradually circulating water pool, air inlet, the first packing layer, the first spraying layer, the second packing layer, the second spraying layer, the 3rd packing layer, the 3rd spraying layer, gas-liquid separator and gas outlet from the bottom to top;
Described first spraying layer, the second spraying layer, the 3rd spraying layer are connected with circulating water pool with feeding spraying pump by pipeline.
Described cleaning equipment for waste organic gas, wherein, selects diameter to be the polyhedron empty ball of 50mm in packing layer.
Described cleaning equipment for waste organic gas, wherein, described spray liquid is running water.
Described cleaning equipment for waste organic gas, wherein, the tower body diameter of spray column is 2500mm, high 5000mm, adopts δ 8mmPP plate to make.
Described cleaning equipment for waste organic gas, wherein, the diameter of gas sampling airduct is set to 0.6m, adopts δ 0.8mm galvanized sheet to make.
Described cleaning equipment for waste organic gas, wherein, centrifugal fan is set to 1, and process air quantity is 20000m
3/ h; The quantity of absorbent charcoal adsorber is set to 1, and process air quantity is 20000m
3/ h.
For pitch processing produce an organic waste-gas purification method, wherein, adopt as weigh upper as described in cleaning equipment for waste organic gas process, comprise the following steps:
Under the effect of centrifugal fan, collect pitch at the bitumen flue gas heated and mix and blend operation produces by gas skirt;
Bitumen flue gas enters one-level spray column by gas sampling airduct and carries out the process of filtration spray, then enters secondary spray column and carry out filtrations spray and process, then enters absorbent charcoal adsorber and carry out adsorption filtration process;
Discharged by discharge duct.
Described organic waste-gas purification method, wherein, enters the process that one-level spray column and secondary spray column carry out filtering spray process, comprises the following steps:
Bitumen flue gas, under the effect of centrifugal fan, enters from the air inlet of spray column;
Bitumen flue gas is from the bottom up successively through the filtration treatment of the first packing layer, the spray process of the first spraying layer, the filtration treatment of the second packing layer, the spray process of the second spraying layer, the filtration treatment of the 3rd packing layer, the spray process of the 3rd spraying layer;
Be separated through gas-liquid separator, the gas after separation discharges spray column again;
The liquid that gas-liquid separator separates goes out and spray liquid are back in circulating water pool.
Beneficial effect: the cleaning equipment for waste organic gas for pitch processing generation of the present invention and purification method, from the analysis of the aspect such as treatment effect and operating cost, adopt the processing scheme that multiple processing scheme combines, namely adopt the scheme of spray+charcoal absorption, guarantee qualified discharge after exhaust-gas treatment.This technique removal efficiency high (can reach more than 99.5%), invest little, operating cost is relatively low, easy to operate, and comprehensive utilization is convenient.And the principle that design and model-selection is followed " advanced practical, economical rationality "; The layout for the treatment of system, runs and does not affect the operation of production equipment and the operation of post workman; Treatment process is economical and practical, reduced investment, takes up an area few; Purification efficiency is high, non-secondary pollution; System run all right, technical maturity is reliable, convenient operating maintenance
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is directed to the cleaning equipment for waste organic gas that pitch processing produces.
Detailed description of the invention
The invention provides a kind of cleaning equipment for waste organic gas for pitch processing generation and purification method, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of cleaning equipment for waste organic gas produced for pitch processing, is the feature for the bitumen flue gas produced in asphalt heating and mix and blend operation, designs the suitable cleaning equipment for waste organic gas produced for pitch processing.Bitumen flue gas refers to during asphalt and pitch articles are produced the liquefied hydrocarbon organic granular material and a small amount of gaseous hydrocarbons goods and materials (under normal temperature) that discharge, take hydrocarbon mixture as Main Ingredients and Appearance, mostly be polycyclic hydrocarbon class material, wherein with benzo [a] pyrene for representative species.Purified petroleum benzin also [a] pyrene is yellow needle-like crystals, fusing point 179 DEG C, and boiling point about 310 DEG C, can be dissolved in benzene, slightly be dissolved in alcohol, water insoluble, is the strong carcinogen in asphalt, can causes cutaneum carcinoma, is usually attached to diameter in glance coal and is less than on the particle of 8.0 μm.For the enterprise of the exhaust gas volumn such as medium and small, because air quantity is little, benzo [a] pyrene exhaust gas production in bitumen flue gas is about 75g/a, a kind of cleaning equipment for waste organic gas provided by the present invention, its design principle is, first collect organic exhaust gas, then carry out secondary spray-absorption and charcoal absorption purification, guarantee qualified discharge after exhaust-gas treatment.This technique removal efficiency high (can reach more than 99.5%), invest little, operating cost is relatively low, easy to operate, and comprehensive utilization is convenient.
Particularly, described cleaning equipment for waste organic gas, shown in composition graphs 1, comprises the gas skirt 11, gas sampling airduct 16, one-level spray column 12, secondary spray column 17, absorbent charcoal adsorber 13, centrifugal fan 14 and the discharge duct 15 that set gradually;
Described gas skirt 11 is arranged at the top of curing oven, and described gas skirt 11 is connected with one-level spray column 12 by described gas sampling airduct 16; Described secondary spray column 17 is connected with one-level spray column 12 with absorbent charcoal adsorber 13 respectively; Described absorbent charcoal adsorber 13 is connected with the air intake of centrifugal fan 14; The outlet air end of described centrifugal fan 14 is connected with discharge duct 15.
According to the composition of organic exhaust gas, the structure of described one-level spray column 12, secondary spray column 17 is identical, is set to three grades of filler sprays, comprises three layers of packing layer and three layers of spraying layer.Particularly, described spray column comprises tower body, three layers of packing layer, three layers of spraying layer, gas-liquid separator, circulating water pool 107 and feeding spraying pump 108; Described tower body inside sets gradually circulating water pool 107, air inlet, the first packing layer 102, first spraying layer 101, second packing layer 104, second spraying layer 103, the 3rd packing layer 106, the 3rd spraying layer 105, gas-liquid separator and gas outlet from the bottom to top;
Described first spraying layer 101, second spraying layer 103, the 3rd spraying layer 105 are connected with circulating water pool 107 with feeding spraying pump 108 by pipeline.
Organic exhaust gas enters from the air inlet of one-level spray column 12, successively by the filtration of the first packing layer 102, the spray liquid of the first spraying layer 101 carries out gas-liquid two-phase and fully contacts absorption, the filtration of the second packing layer 104, the spray liquid of the second spraying layer 103 carries out gas-liquid two-phase and fully contacts absorption, the filtration of the 3rd packing layer 106, the spray liquid of the 3rd spraying layer 105 carries out gas-liquid two-phase and fully contacts absorption, the organic exhaust gas eventually passing purified treatment passes through gas-liquid separator, discharge from the gas outlet of one-level spray column 12, spray process one time entering secondary spray column 17, finally enter absorbent charcoal adsorber 13 adsorption filtration process, discharge finally by centrifugal fan 14 and discharge duct 15.In the circulating water pool 107 of spray liquid at the bottom of tower after feeding spraying pump 108 increases, respectively in three layers of spraying layer spray and under, be finally back to circulating water pool 107 Inner eycle at the bottom of tower and use.Described spray column has following characteristic: 1. equipment takes up an area few, easy for installation; 2. water consumption, power consumption index are lower; 3. corrosion-resistant, do not wear and tear, long service life; 4. equipment is reliable, and it is simple, convenient to safeguard.
Further, select diameter to be the polyhedron empty ball of 50mm, have high cycle speed, the advantages such as blade is many, resistance is little, specific area is large in packing layer, fully can solve gas-liquid and exchange, operating flexibility is large.
Spray liquid is running water, and replacing running water after spray liquid absorption is saturated, supplements convenient and swift, spray water mist has the effect of cooling to bitumen flue gas, and can absorb moieties in flue gas, reduces particle concentration in flue gas, be a kind of effective pretreating device, improve treatment effeciency.
Described absorbent charcoal adsorber is the adsorption capacity of the high surface area utilizing active carbon, and when pitch waste gas is by absorbent charcoal adsorber, in waste gas, harmful substance (BaP) is absorbed, and is purified.This method is simple, manageability, effective.
A kind of organic waste-gas purification method produced for pitch processing is also provided in the present invention, comprises the following steps:
Under the effect of centrifugal fan 14, collect pitch at the bitumen flue gas heated and mix and blend operation produces by gas skirt 11;
Bitumen flue gas enters one-level spray column 12 by gas sampling airduct 16 and carries out the process of filtration spray, then enters secondary spray column 17 and carry out filtrations spray and process, then enters absorbent charcoal adsorber 13 and carry out adsorption filtration process;
Discharged by discharge duct 15.
Wherein, enter the process that one-level spray column 12 and secondary spray column 17 carry out filtering spray process, comprise the following steps:
Bitumen flue gas, under the effect of centrifugal fan 14, enters from the air inlet of spray column 12;
Bitumen flue gas is from the bottom up successively through the filtration treatment of the first packing layer 122, the spray process of the first spraying layer 121, the filtration treatment of the second packing layer 124, the spray process of the second spraying layer 123, the filtration treatment of the 3rd packing layer 126, the spray process of the 3rd spraying layer 125;
Be separated through gas-liquid separator, the gas after separation discharges spray column 12 again;
The liquid that gas-liquid separator separates goes out and spray liquid are back in circulating water pool 107.
Below by way of specific embodiment, the present invention will be further described.
Embodiment
Certain pitch mixes and stirs in business department a drying oven, produce pitch used first to be heated by heat-conducting oil furnace, send in stir storehouse via bitumenpump again, therefore bitumen flue gas can be produced at asphalt heating and mix and blend operation, its major pollutants are liquefied hydrocarbon organic granular material and a small amount of gaseous hydrocarbons goods and materials (under normal temperature), be Main Ingredients and Appearance with hydrocarbon mixture, mostly be polycyclic hydrocarbon class material, wherein with benzo [a] pyrene for representative species.Because air quantity is little, benzo [a] the pyrene exhaust gas production in bitumen flue gas is about 75g/a, and consider the factor such as treatment effeciency and airduct resistance, the exhaust-gas treatment amount of cleaning equipment for waste organic gas described in the present embodiment is set to 20000m
3/ h (every day was in 10 hours).
Organic exhaust gas is collected through gas skirt 11, then imports gas sampling airduct 16, and then enters one-level spray column 12, secondary spray column 17, absorbent charcoal adsorber 13.In the present embodiment scheme, the wind speed got in gas sampling airduct 16 is 20m/s, then air main 122 sectional area is:
for convenience of producing, finally determine that gas sampling airduct 16 is of a size of:
material selection δ 0.8mm galvanized sheet.
The quantity of centrifugal fan 14 is set to 1, and process air quantity is 20000m
3/ h.
The quantity of spray column is set to 2 covers, is respectively one-level spray column 12 and secondary spray column 17, and liquid-gas ratio is 2L/m
3, pressure loss 800Pa, according to exhaust-gas treatment amount, it is 2500mm that its size is set to diameter, high 5000mm, material selection δ 8mmPP plate.Floating ball water replenishing device is provided with, when liquid level is reduced to certain water level, automatically from supply water source from the beginning in circulating water pool 107.The nozzle of spraying layer can adopt anti-clogging screw injection nozzle.The flow of water circulating pump is 40m
3/ h, power of motor is 4kw.
The quantity of absorbent charcoal adsorber 13 is set to 1, and process air quantity is 20000m
3/ h, appearance and size is 750*1500*1500 (mm), pressure loss 500Pa.
Install described cleaning equipment for waste organic gas, the straight airduct section entering treatment system at flue gas establishes sample tap, so that the concentration of the waste gas of monitoring process.Straight airduct section after treatment system establishes sample tap, and the concentration of monitoring process waste gas, carries out monitoring according to " Air Pollutant Emission limit value " (DB44/27-2001) etc. and sample.
After testing, waste gas after treatment meets Guangdong Province's provincial standard " Air Pollutant Emission limit value " (DB44/27-2001) the second period secondary standard, and concrete discharge standard is as shown in table 1 shows:
Table 1 aiutage VOCS emission limit
Waste gas is after governance for reaching standard, and the airduct high through relative ground 15m discharges (chimney height requires to arrange with reference to chimney minimum acceptable altitude in Guangdong Province's provincial standard " Air Pollutant Emission limit value " (DB44/27-2001) and environment impact assessment statement table); The setting of thief hatch meets " Pollution Source Monitoring technical specification " requirement.
A kind of cleaning equipment for waste organic gas produced for pitch processing provided by the present invention, the principle that design and model-selection is followed " advanced practical, economical rationality "; The layout for the treatment of system, runs and does not affect the operation of production equipment and the operation of post workman; Treatment process is economical and practical, reduced investment, takes up an area few; Purification efficiency is high, non-secondary pollution; System run all right, technical maturity is reliable, convenient operating maintenance.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (9)
1. the cleaning equipment for waste organic gas produced for pitch processing, it is characterized in that, the bitumen flue gas that described cleaning equipment for waste organic gas produces in heating and mix and blend operation for the treatment of pitch, its structure comprises the gas skirt, gas sampling airduct, one-level spray column, secondary spray column, absorbent charcoal adsorber, centrifugal fan and the discharge duct that set gradually;
Described gas skirt is arranged at the top of curing oven, and described gas skirt is connected with one-level spray column by described gas sampling airduct; Described secondary spray column is connected with one-level spray column with absorbent charcoal adsorber respectively; Described absorbent charcoal adsorber is connected with the air intake of centrifugal fan; The outlet air end of described centrifugal fan is connected with discharge duct.
2. cleaning equipment for waste organic gas according to claim 1, is characterized in that, described one-level spray column is identical with the structure of secondary spray column, comprises tower body, three layers of packing layer, three layers of spraying layer, gas-liquid separator, circulating water pool and feeding spraying pump; Described tower body inside sets gradually circulating water pool, air inlet, the first packing layer, the first spraying layer, the second packing layer, the second spraying layer, the 3rd packing layer, the 3rd spraying layer, gas-liquid separator and gas outlet from the bottom to top;
Described first spraying layer, the second spraying layer, the 3rd spraying layer are connected with circulating water pool with feeding spraying pump by pipeline.
3. cleaning equipment for waste organic gas according to claim 2, is characterized in that, selects diameter to be the polyhedron empty ball of 50mm in packing layer.
4. cleaning equipment for waste organic gas according to claim 2, is characterized in that, described spray liquid is running water.
5. cleaning equipment for waste organic gas according to claim 2, is characterized in that, the tower body diameter of spray column is 2500mm, high 5000mm, adopts δ 8mmPP plate to make.
6. cleaning equipment for waste organic gas according to claim 1, is characterized in that, the diameter of gas sampling airduct is set to 0.6m, adopts δ 0.8mm galvanized sheet to make.
7. cleaning equipment for waste organic gas according to claim 1, is characterized in that, centrifugal fan is set to 1, and process air quantity is 20000m
3/ h; The quantity of absorbent charcoal adsorber is set to 1, and process air quantity is 20000m
3/ h.
8. for pitch processing produce an organic waste-gas purification method, it is characterized in that, adopt as arbitrary in claim 1 ~ 7 as described in cleaning equipment for waste organic gas process, comprise the following steps:
Under the effect of centrifugal fan, collect pitch at the bitumen flue gas heated and mix and blend operation produces by gas skirt;
Bitumen flue gas enters one-level spray column by gas sampling airduct and carries out the process of filtration spray, then enters secondary spray column and carry out filtrations spray and process, then enters absorbent charcoal adsorber and carry out adsorption filtration process;
Discharged by discharge duct.
9. organic waste-gas purification method according to claim 8, is characterized in that, enters the process that one-level spray column and secondary spray column carry out filtering spray process, comprises the following steps:
Bitumen flue gas, under the effect of centrifugal fan, enters from the air inlet of spray column;
Bitumen flue gas is from the bottom up successively through the filtration treatment of the first packing layer, the spray process of the first spraying layer, the filtration treatment of the second packing layer, the spray process of the second spraying layer, the filtration treatment of the 3rd packing layer, the spray process of the 3rd spraying layer;
Be separated through gas-liquid separator, the gas after separation discharges spray column again;
The liquid that gas-liquid separator separates goes out and spray liquid are back in circulating water pool.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008185.1A CN105536436A (en) | 2015-12-25 | 2015-12-25 | Organic waste gas purification device and purification method aiming at asphalt processing production |
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|---|---|---|---|
| CN201511008185.1A CN105536436A (en) | 2015-12-25 | 2015-12-25 | Organic waste gas purification device and purification method aiming at asphalt processing production |
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| CN106890521A (en) * | 2017-04-14 | 2017-06-27 | 湖南省浏阳市择明热工器材有限公司 | Exhaust treatment system and waste gas treatment equipment |
| CN106975315A (en) * | 2017-05-19 | 2017-07-25 | 唐山鼎业塑材科技有限公司 | A kind of waste plastic regeneration exhaust gas purification equipment and purification technique |
| CN107525084A (en) * | 2017-07-26 | 2017-12-29 | 深圳市国尚达科技有限公司 | The harmless emission equipment and its discharge method at waste incineration station |
| CN107854930A (en) * | 2017-11-25 | 2018-03-30 | 佛山市龙兄虎弟环保设备有限公司 | A kind of waste gas processing method and processing system |
| CN108619879A (en) * | 2018-07-18 | 2018-10-09 | 安徽京仪自动化装备技术有限公司 | It is a kind of for sour gas, dust particles exhaust gas rear end purifier |
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| CN108867247A (en) * | 2018-08-03 | 2018-11-23 | 湖北智坤建设工程有限公司 | A kind of environment-friendly type asphalt mixing plant |
| CN108905458A (en) * | 2018-09-30 | 2018-11-30 | 湖州南丰机械制造有限公司 | A kind of exhaust treatment system in precoated sand workshop |
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| CN109012082A (en) * | 2018-08-07 | 2018-12-18 | 蔡毓旻 | A kind of full-automatic removing means of nitrogen oxides |
| CN109569146A (en) * | 2019-01-10 | 2019-04-05 | 江阴市天宝玻璃钢制品有限公司 | A kind of high effect dust cleaner and method |
| CN110772951A (en) * | 2019-11-04 | 2020-02-11 | 湖南鑫长星机械设备有限公司 | Asphalt smoke absorbing device |
| CN112619375A (en) * | 2020-12-02 | 2021-04-09 | 中交二公局第三工程有限公司 | Closed dust absorption exhaust treatment system of pitch mix building |
| CN113125653A (en) * | 2021-04-21 | 2021-07-16 | 林国伟 | Indoor air detection device |
| CN114632393A (en) * | 2022-03-15 | 2022-06-17 | 安徽锦美碳材科技发展有限公司 | Asphalt flue gas treatment system |
| CN115006965A (en) * | 2022-06-20 | 2022-09-06 | 成都格莱高科技有限公司 | Organic waste gas treatment system and treatment process thereof |
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