CN107789964A - A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment - Google Patents

A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment Download PDF

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Publication number
CN107789964A
CN107789964A CN201610817765.3A CN201610817765A CN107789964A CN 107789964 A CN107789964 A CN 107789964A CN 201610817765 A CN201610817765 A CN 201610817765A CN 107789964 A CN107789964 A CN 107789964A
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CN
China
Prior art keywords
data
exhaust outlet
waste gas
impregnation process
emission
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Pending
Application number
CN201610817765.3A
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Chinese (zh)
Inventor
高岩
苏展
邬向红
李晖
赵达宏
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Henan Tianqing Dining Environmental Protection Technology Co Ltd
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Henan Tianqing Dining Environmental Protection Technology Co Ltd
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Priority to CN201610817765.3A priority Critical patent/CN107789964A/en
Publication of CN107789964A publication Critical patent/CN107789964A/en
Pending legal-status Critical Current

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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
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/0446—Means for feeding or distributing gases
    • 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
    • B01D53/0454—Controlling adsorption
    • 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
    • B01D53/1412—Controlling the absorption process
    • 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
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • 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
    • B01D2257/7022—Aliphatic hydrocarbons
    • 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
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention relates to a kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment.The absorption of filler spray column+MHCC efficient absorptions material is considered as to be handled, and the data of waste gas treatment process are measured by sensor, accurate quantification is handled after CPU is analyzed, and final realize is discharged by national standard, while is realized the storage of real time data and pointed to transmission.The present invention makes full use of physico-chemical process to handle impregnation process exhaust outlet waste gas, and data are analyzed, handled and stored during, realizes the intelligent Application of the present invention.Data-interface has been reserved this data to be included to the big data of plant area analyzing and processing, and has participated in Data Collection and the monitoring of Environmental Protection Agency.

Description

A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment
Technical field
This patent is related to industrial tail gas processing unit, especially a kind of exhaust-gas treatment of impregnation process exhaust outlet novel intelligent Device.
Background technology
Waste gas generation is had in gum dipping process production process, waste gas is mainly general volatile organic pollution (TVOC) and first Two kinds of waste gas of aldehyde.
Total volatile organism is a kind of important air pollutants, it and the NO in air2Reaction generation O3, can be formed Photochemical fog, and being dispersed into along with peculiar smell, stench in air, has stimulation to the eye nose and respiratory tract of people, to the heart, The internal organ such as lung, liver and nervous system produce adverse effect, and some are then the allergens for influenceing human organ and body, even Acute and chronic poisoning is caused, can carcinogenic, mutagenesis.Formaldehyde is magma poisonous substance, can be combined with protein, sucks high-concentration formaldehyde Afterwards, it may appear that the serious stimulation of respiratory tract and oedema, eye shouting pain, headache, bronchial astehma can also occur.Direct skin contact first Aldehyde, dermatitis, color spot, necrosis can be caused.A small amount of formaldehyde is often sucked, slow poisoning can be caused, mucous hyperemia, skin irritatin occurs Disease, allergic dermatitis etc..
If not being acted upon discharging and certain harm being caused to environment, and domestic existing charcoal absorption+catalysis There is waste gas and contacted with sorbing material not abundant enough in burner, cause the poisonous and hazardous waste gas purification in part in processing procedure It is below standard just to discharge, it is impossible to reach the requirement of environmental administration, pollution is caused to atmospheric environment.
In addition, with the continuous popularization of Internet of Things and big data technology, the intellectuality to equipment proposes higher requirement, The present invention, can be accurate primarily directed to a kind of novel intelligent emission-control equipment of impregnation process exhaust outlet exhaust-gas treatment development The pernicious gas in waste gas is handled, tail gas is reached discharging standards, and can be closed to the exhaust-gas treatment in discharge process Key data is recorded and pointed to output.
The content of the invention
Contained substance is discharged for the waste gas of impregnation process exhaust outlet, it is new that the present invention proposes a kind of impregnation process exhaust outlet The emission-control equipment of type intelligence.
The present invention is considered as the absorption of filler spray column+MHCC efficient absorptions material and handled, and passes through sensor pair The data of waste gas treatment process are measured, and accurate quantification is handled after CPU is analyzed, final to realize by country's mark Quasi- discharge, while realize the storage of real time data and point to transmission.The present invention include 1. vapor-water heat exchangers, 2. spray absorbers, 3. spray equipment, 4. cellular Pall ring filler layers, 5. absorbing liquid towers, 6. liquid pumps, 7. bottom of towe circulation liquid bath, 8.MHCC are efficient Sorbing material, 9. exhaust storehouses, 10. air-introduced machines and 11.12.13. sensor groups.
The waste gas of gum dipping process discharge is cooled before entering spray absorber with vapor-water heat exchanger, makes temperature from 260 DEG C Left and right drops to 80 DEG C or so.
Gum dipping process waste gas is collected by collection system, into vapor-water heat exchanger, temperature is dropped to 80 DEG C or so, is passed by 11. Sensor group measures waste gas various parameters, and concentration, dosage and the spray time etc. of spray liquid are determined after CPU is analyzed Parameter, treat that waste gas enters 2. spray absorbers, corresponding absorbing liquid is uniformly sprayed by the spray equipment of tower body top 3., waste gas passes through 4. cellular Pall ring filler layers being made up of filler, make gas-liquid two-phase fully contact generation absorbing reaction, reach high-efficient purification Purpose.Absorb the absorbing liquid after waste gas to flow into 7. bottom of towe circulation liquid bath, controlled after being handled again by central control unit The quantitative absorbing liquid of corrosion resistant 6. liquid pumped is sent into 2. spray absorbers again, so moves in circles, constantly to useless Pernicious gas in gas is absorbed.
The waste gas of part pernicious gas is removed to control through the detection of 12. sensor groups and after being judged by automatic control system Valve 1,2, allow waste gas to enter and handle in next step.After waste gas reaches process standard, into 8.MHCC efficient absorption material adsorption towers, MHCC efficient absorption filtration of material layers are flowed into gas flow to be adsorbed by MHCC efficient absorptions material, it is clean after efficient absorption Detection of the net air through 13. sensor groups and control valve 3,4 after automatic control system judges, waste gas is allowed to enter lower one stream Journey.Such as reach discharging standards, then go out gas storehouse into 9., gas enters aiutage after 10. air-introduced machines, then drains into big In gas.
MHCC efficient absorptions material adsorbs：MHCC technologies are multifunctional efficient catalysis clean technologies English full name Multifunctional High Performance Catalytic Cleaning abbreviation, this material can be handled simultaneously Main gaseous contaminant in room air, such as formaldehyde, TVOC, benzene,toluene,xylene, hydrogen sulfide, sulfur dioxide, titanium dioxide Nitrogen, ammonia, ozone etc., processing speed is fast, efficiency high, and the scientific achievement of the technology has been accredited as the " world by Chinese environmental association It is leading ", technology barriers are high.MHCC technologies and material can be used for air purifier, New-air purifying system, air-conditioning system, refrigerator to remove A variety of air purification fields such as taste equipment, indoor air purification harnessing project, lampblack purifying system.
The present invention be it is a kind of can continuously run for a long time, the waste gas for the impregnation process exhaust outlet novel intelligent that purification efficiency is high Processing unit.Specific manifestation is in the following areas：
The present invention makes full use of physico-chemical process to handle impregnation process exhaust outlet waste gas, and the data during Analyzed, handled and stored, realize the intelligent Application of the present invention.
Data-interface has been reserved this data to be included to the big data of plant area analyzing and processing, and has participated in the number of Environmental Protection Agency According to collection and monitoring.
Tower body top spray equipment uniformly sprays corresponding absorbing liquid and enters the harmful of tower body using self gravitation and bottom It is in counter-current flow between gas.
The even pressure chamber that waste gas is introduced in purifying column by blower fan, by two spraying treatments of variable speed winding type, into net Change tower inner cylinder processor.
Waste gas passes through the cellular Pall ring filler layer being made up of filler, gas-liquid two-phase is fully contacted generation and absorbs instead Answer, reach the purpose of high-efficient purification.
Brief description of the drawings
Fig. 1 is the process chart of the present invention
Fig. 2 is the control principle drawing of automatic control system in the present invention.
In figure：1. vapor-water heat exchanger, 2. spray absorbers, 3. spray equipments, 4. cellular Pall ring filler layers, 5. absorb Liquid tower, 6. liquid pumps, 7. bottom of towe circulation liquid bath, 8.MHCC efficient absorptions material, 9. exhaust storehouses, 10. air-introduced machines and 11.12. are passed Sensor group.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Because the EGT of gum dipping process discharge is at 260 DEG C or so, temperature is higher, can influence spray equipment and MHCC is high Imitate sorbing material absorption removal efficiency, therefore waste gas enter 2. spray absorbers before cooled with 1. vapor-water heat exchangers, make EGT drops to 80 DEG C or so and rear enters spray column.
Spray column purification technique：The method that this technique uses is changed using the method processing waste gas of physics and chemistry Learn absorption process and absorbent is done using NaOH solution, utilize the technique purified the methods of physical chemistry to waste gas.Physics is inhaled Receipts are pure physical dissolution processes when using liquid absorption pernicious gas and steam.It is suitable for bigger harmful of solubility water Gas and steam, general absorption efficiency are relatively low.Chemical absorbing is with obvious chemical reaction in absorption process, is not pure molten Solution preocess.
Gum dipping process waste gas is collected by collection system, into 1. vapor-water heat exchangers, temperature is dropped to 80 DEG C or so, by 11. Sensor group measures waste gas various parameters, and concentration, dosage and the spray time of spray liquid are determined after CPU is analyzed Etc. parameter, treat that waste gas enters 2. spray absorbers, corresponding absorbing liquid is uniformly sprayed by the spray equipment of tower body top 3., bottom is entered It is in counter-current flow to enter the pernicious gas of tower body and spray liquid, and waste gas is by the even pressure chamber in blower fan introducing purifying column, by variable speed Two spraying treatments of winding type, into purifying column inner cylinder processor.Waste gas passes through 4. cellular Pall rings being made up of filler Packing layer, gas-liquid two-phase is fully contacted generation absorbing reaction, reach the purpose of high-efficient purification.Absorb the absorbing liquid after waste gas Flow into 7. bottom of towe circulation liquid bath, the quantitative suction of corrosion resistant 6. liquid pumped is controlled after being handled again by central control unit Receive liquid and be sent into 2. spray absorbers again, so move in circles, constantly the pernicious gas in waste gas is absorbed.
The waste gas for being removed part pernicious gas such as fails to reach the standard after absorbing after the detection of 12. sensor groups, Valve 1 is then opened by automatic control system, valve 2 is closed, allows waste gas to reenter 2. spray absorber cyclic absorptions.If through 12. sensor group detection such as reaches discharge standard, automatic control system opens valve 2, closes valve 1, makes the waste gas after processing Into 8.MHCC efficient absorption material adsorption towers, after remainder of exhaust gas enters in tower, MHCC efficient absorption materials are flowed into gas flow Expect that filter layer is adsorbed by MHCC efficient absorptions material, and MHCC efficient absorption material layers have saturation time section in adsorption process, The process length of its MHCC efficient absorption material saturation and the gas concentration of gas contained by inside and the time length to work in itself Have directly related.Pure air after absorption such as fails the mark for reaching safety dumping after the detection of 13. sensor groups Standard, then valve 3 is opened by automatic control system, close valve 4, allow waste gas to reenter 8.MHCC efficient absorption material adsorption towers Cyclic absorption.Such as reach discharge standard through the detection of 13. sensor groups, automatic control system opens valve 4, closes valve 3, makes to reach Mark air goes out gas storehouse into 9., and gas enters aiutage after 10. air-introduced machines, then drained into air.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention. Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's Within protection domain.

Claims (6)

  1. A kind of 1. emission-control equipment of impregnation process exhaust outlet novel intelligent, it is characterised in that：Described novel intelligent gives up Flash Gas Compression Skid System include 1. vapor-water heat exchangers, 2. spray absorbers, 3. spray equipments, 4. Pall ring filler layers, 5. absorbing liquid towers, 6. liquid pump, 7. bottom of towe circulation liquid bath, 8.MHCC efficient absorptions material, 9. exhaust storehouses, 10. air-introduced machines and 11.12.13. sensings Device group.The emission-control equipment of novel intelligent is handled using the absorption of filler spray column+MHCC efficient absorptions material, and is passed through Sensor is measured to the data of waste gas treatment process, and accurate quantification is handled after CPU is analyzed, final to realize Discharged by national standard, while realize the storage of real time data and point to transmission.
  2. A kind of 2. emission-control equipment of impregnation process exhaust outlet novel intelligent according to claim 1, it is characterised in that： Reserved data-interface to this data is included the big data of plant area analyzing and processing, and participate in Environmental Protection Agency Data Collection and Monitoring.
  3. A kind of 3. emission-control equipment of impregnation process exhaust outlet novel intelligent according to claim 1, it is characterised in that： Using filler spray column+MHCC efficient absorptions material absorption physico-chemical process to impregnation process exhaust outlet waste gas at Reason, and data are analyzed, handled and stored during, realize the intelligent Application of the present invention.
  4. A kind of 4. emission-control equipment of impregnation process exhaust outlet novel intelligent according to claim 1, it is characterised in that： Tower body top spray equipment is uniformly sprayed corresponding absorbing liquid and entered using self gravitation and bottom between the pernicious gas of tower body In counter-current flow.
  5. A kind of 5. emission-control equipment of impregnation process exhaust outlet novel intelligent according to claim 1, it is characterised in that： Waste gas passes through the cellular Pall ring filler layer being made up of filler, gas-liquid two-phase is fully contacted generation absorbing reaction, reaches high Imitate the purpose of purification.
  6. A kind of 6. emission-control equipment of impregnation process exhaust outlet novel intelligent according to claim 1, it is characterised in that： The even pressure chamber that waste gas is introduced in purifying column by blower fan, by two spraying treatments of variable speed winding type, into purifying column inner cylinder Processor.
CN201610817765.3A 2016-08-31 2016-08-31 A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment Pending CN107789964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610817765.3A CN107789964A (en) 2016-08-31 2016-08-31 A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610817765.3A CN107789964A (en) 2016-08-31 2016-08-31 A kind of intelligent equipment of impregnation process exhaust outlet exhaust-gas treatment

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CN107789964A true CN107789964A (en) 2018-03-13

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274651A (en) * 1999-03-24 2000-10-03 Yokogawa Electric Corp Combustor
CN101318101A (en) * 2008-07-23 2008-12-10 朱学智 Dry desulfurizing process implementing automatic control based on environment friendly monitoring network and numeration table
WO2011014345A1 (en) * 2009-07-30 2011-02-03 Exxonmobil Upstream Research Company Systems and methods for removing heavy hydrocarbons and acid gases from a hydrocarbon gas stream
CN102198361A (en) * 2011-05-19 2011-09-28 蒋超 Hydrogen chloride tail gas recovery equipment
CN102327736A (en) * 2011-06-14 2012-01-25 于力 Method and integrated equipment for collecting desulfuration product by ammonia wet desulfuration dry method
CN202715319U (en) * 2012-05-23 2013-02-06 金华华东环保设备有限公司 Flue gas collecting, treating and detecting and controlling system for small-sized sintering furnace
CN103157354A (en) * 2011-12-08 2013-06-19 江苏东嘉能源科技有限公司 Modularized control system for large desulfurization equipment
CN204003651U (en) * 2014-05-08 2014-12-10 江苏瑞丰科技实业有限公司 Exhaust Air Cleaning fan
CN204141821U (en) * 2014-10-17 2015-02-04 江苏瑞丰科技实业有限公司 Idle call Integral air purifying processor
CN104850104A (en) * 2015-05-15 2015-08-19 杭州科瑞特环境技术有限公司 Operation real-time monitoring system for setting machine oil-smoke exhaust-gas treatment apparatus and method thereof
CN105148657A (en) * 2015-07-21 2015-12-16 天津霍普环保科技有限公司 Waste incineration flue gas treatment system
CN204911229U (en) * 2015-08-25 2015-12-30 广州宇翔环保技术有限公司 Spraying waste gas treatment system
CN204973533U (en) * 2015-09-10 2016-01-20 中冶南方工程技术有限公司 Cold rolled stainless steel pickling exhaust purification system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274651A (en) * 1999-03-24 2000-10-03 Yokogawa Electric Corp Combustor
CN101318101A (en) * 2008-07-23 2008-12-10 朱学智 Dry desulfurizing process implementing automatic control based on environment friendly monitoring network and numeration table
WO2011014345A1 (en) * 2009-07-30 2011-02-03 Exxonmobil Upstream Research Company Systems and methods for removing heavy hydrocarbons and acid gases from a hydrocarbon gas stream
CN102198361A (en) * 2011-05-19 2011-09-28 蒋超 Hydrogen chloride tail gas recovery equipment
CN102327736A (en) * 2011-06-14 2012-01-25 于力 Method and integrated equipment for collecting desulfuration product by ammonia wet desulfuration dry method
CN103157354A (en) * 2011-12-08 2013-06-19 江苏东嘉能源科技有限公司 Modularized control system for large desulfurization equipment
CN202715319U (en) * 2012-05-23 2013-02-06 金华华东环保设备有限公司 Flue gas collecting, treating and detecting and controlling system for small-sized sintering furnace
CN204003651U (en) * 2014-05-08 2014-12-10 江苏瑞丰科技实业有限公司 Exhaust Air Cleaning fan
CN204141821U (en) * 2014-10-17 2015-02-04 江苏瑞丰科技实业有限公司 Idle call Integral air purifying processor
CN104850104A (en) * 2015-05-15 2015-08-19 杭州科瑞特环境技术有限公司 Operation real-time monitoring system for setting machine oil-smoke exhaust-gas treatment apparatus and method thereof
CN105148657A (en) * 2015-07-21 2015-12-16 天津霍普环保科技有限公司 Waste incineration flue gas treatment system
CN204911229U (en) * 2015-08-25 2015-12-30 广州宇翔环保技术有限公司 Spraying waste gas treatment system
CN204973533U (en) * 2015-09-10 2016-01-20 中冶南方工程技术有限公司 Cold rolled stainless steel pickling exhaust purification system

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Application publication date: 20180313