CN110585841A - Device and method for removing multiple pollutants in waste gas of setting machine and regenerating adsorbent in situ - Google Patents
Device and method for removing multiple pollutants in waste gas of setting machine and regenerating adsorbent in situ Download PDFInfo
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- CN110585841A CN110585841A CN201910956211.5A CN201910956211A CN110585841A CN 110585841 A CN110585841 A CN 110585841A CN 201910956211 A CN201910956211 A CN 201910956211A CN 110585841 A CN110585841 A CN 110585841A
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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
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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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
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to a waste gas multi-pollutant removing and adsorbent in-situ regenerating device for a setting machine, which comprises a dust and oil removing smoke device, a smoke whitening device, a VOCs adsorption regenerating device and an oil-water separating device; the device for removing dust and oil smoke comprises a filter and a wet electrostatic dust collector, the smoke whitening device comprises a first-stage steam-water heat exchanger, a third-stage steam-water heat exchanger, a second-stage steam-water heat exchanger and a water cooling tower, the VOCs adsorption and regeneration device comprises an adsorption tank, a catalytic combustor and a gas-gas heat exchanger, and the oil-water separation device comprises an oil-water separator; the inlet of the filter is connected with the waste gas of the setting machine; the inlet of the first-stage steam-water heat exchanger is connected with the outlet of the filter, and the first-stage steam-water heat exchanger is connected with the third-stage steam-water heat exchanger at the outlet of the adsorption tank. The invention has the beneficial effects that: 1) the invention realizes the simultaneous removal and 'white elimination' of multiple pollutants; 2) the production amount of waste water is reduced; 3) the adsorbent is regenerated in situ.
Description
Technical Field
The invention belongs to the technical field of resources and environment, and particularly relates to a device and a method for removing multiple pollutants in waste gas of a setting machine and regenerating an adsorbent in situ.
Background
Printing and dyeing enterprises are distributed concentratedly, and the forming machine waste gas contains pollutants such as a large amount of fibre dirt (particulate matter), oil smoke, VOCs, causes adverse effect to regional atmospheric environment quality. The emission limit values are provided for particulate matters, dyeing and finishing oil smoke, VOCs, odor concentration, formaldehyde, benzene and benzene series emission in the national level-first local standard 'textile dyeing and finishing industry atmospheric pollutant emission standard' (DB 33/962-2015) in Zhejiang province of 3 months in 2015.
At present, printing and dyeing enterprises mostly adopt water spraying or wet electrostatic dust removal technology to control the waste gas pollution of the setting machine, thereby avoiding the risk that an early dry electrostatic dust collector is easy to catch fire, but still having some problems:
1) no special VOCs control unit exists, and the new standard requirement cannot be met;
2) because the waste gas temperature of the setting machine is high, white smoke is generated after the waste gas is subjected to wet treatment, and the appearance is influenced.
Under the current severe background of environmental protection situation, how to meet new higher requirements through technical upgrading is a problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a device and a method for removing multiple pollutants in waste gas of a setting machine and regenerating an adsorbent in situ, simultaneously realizes high-efficiency removal of particulate matters, oil smoke and VOCs, and can regenerate and use the adsorbent in situ.
The waste gas multi-pollutant removing and adsorbent in-situ regenerating device for the setting machine comprises a dust and oil removing and smoke removing device, a smoke and white removing device, a VOCs adsorption and regeneration device and an oil-water separation device; the device for removing dust and oil smoke comprises a filter and a wet electrostatic dust collector, the smoke whitening device comprises a first-stage steam-water heat exchanger, a third-stage steam-water heat exchanger, a second-stage steam-water heat exchanger and a water cooling tower, the VOCs adsorption and regeneration device comprises an adsorption tank, a catalytic combustor and a gas-gas heat exchanger, and the oil-water separation device comprises an oil-water separator; the inlet of the filter is connected with the waste gas of the setting machine; an inlet of the first-stage steam-water heat exchanger is connected with an outlet of the filter, and the first-stage steam-water heat exchanger is connected with a third-stage steam-water heat exchanger at an outlet of the adsorption tank; an inlet of the second-stage steam-water heat exchanger is connected with an outlet of the first-stage steam-water heat exchanger, and the second-stage steam-water heat exchanger is connected with a water cooling tower; an inlet of the wet electrostatic precipitator is connected with an outlet of the second-stage steam-water heat exchanger; the inlets of a plurality of adsorption tanks which are arranged in parallel are connected with the outlet of the wet electrostatic dust collector, and the adsorption tanks are connected with the catalytic combustor and the gas-gas heat exchanger; an inlet of the third-stage steam-water heat exchanger is connected with an outlet of the adsorption tank; the oil-water separator is connected with the filter, the first-stage steam-water heat exchanger, the second-stage steam-water heat exchanger and the wet electrostatic dust collector.
Preferably, the method comprises the following steps: the filter is a dry filter.
Preferably, the method comprises the following steps: the wet electrostatic dust collector is vertical, and a demister is arranged at an outlet of the wet electrostatic dust collector.
Preferably, the method comprises the following steps: and the first stage steam-water heat exchanger and the third stage steam-water heat exchanger form a WGGH system.
Preferably, the method comprises the following steps: the adsorption tank adopts a molecular sieve as a VOCs adsorbent.
Preferably, the method comprises the following steps: the catalytic combustor adopts Pt or Pd base noble metal catalyst or high-efficiency transition metal composite oxide catalyst.
The treatment method of the waste gas multi-pollutant removing and adsorbent in-situ regeneration device of the setting machine comprises the following steps:
1) waste gas enters a filter from a waste gas inlet, the filter removes fiber dust and large particles in the waste gas, and then a first-stage steam-water heat exchanger and a second-stage steam-water heat exchanger respectively cool the waste gas;
2) the cooled waste gas enters a wet electrostatic dust collector, and the wet electrostatic dust collector removes most of particulate matters and oil smoke in the waste gas;
3) waste gas from the wet electrostatic dust collector enters an adsorption tank, and VOCs in the waste gas are adsorbed by the adsorption tank;
4) the waste gas with the VOCs removed enters a third-stage steam-water heat exchanger, and the waste gas is discharged after being heated by the third-stage steam-water heat exchanger;
5) the adsorption regeneration device for VOCs is used for periodically carrying out desorption regeneration on the adsorbent saturated in adsorption, the desorbed VOCs are degraded through catalytic combustion in the catalytic combustor, and the desorbed air enters the adsorption tank after exchanging heat with the combusted waste gas through the gas-gas heat exchanger;
6) and separating oily wastewater discharged from the filter, the first-stage steam-water heat exchanger, the second-stage steam-water heat exchanger and the wet electrostatic dust collector by using an oil-water separator, and recovering the waste oil.
Preferably, the method comprises the following steps: in the step 1), firstly, the temperature of the waste gas is reduced to below 85 ℃ by utilizing a first-stage steam-water heat exchanger, and then the temperature of the waste gas is reduced to below 45 ℃ by utilizing a second-stage steam-water heat exchanger and a water cooling tower.
Preferably, the method comprises the following steps: and 4) in the step 4), a third-stage steam-water heat exchanger of a WGGH system formed by the first-stage steam-water heat exchanger is utilized to raise the temperature of the waste gas to be above 80 ℃ and discharge the waste gas.
Preferably, the method comprises the following steps: the temperature of the regeneration air of the adsorbent in the step 5) is 150-210 ℃; the inlet temperature of the catalyst bed is 280-350 ℃.
The invention has the beneficial effects that:
1. the invention realizes the simultaneous removal and 'white removal' of multiple pollutants. According to the waste gas characteristics of the setting machine, the multifunctional device is organically combined, so that the particulate matters, the oil smoke and the VOCs are simultaneously removed, the 'white smoke' is eliminated by using the waste heat of the waste gas, and the appearance is improved.
2. The production amount of waste water is reduced. The invention adopts a steam-water heat exchange mode, water is not contacted with waste gas, and only condensation waste water is generated in a filter and a steam-water heat exchanger and washing waste water is generated in a wet electrostatic dust collector.
3. The adsorbent is regenerated in situ. Through adsorption and desorption and catalytic combustion, the adsorbent is regenerated in situ, and the running cost and solid waste caused by frequent replacement of the adsorbent after adsorption saturation are avoided.
Drawings
Fig. 1 is a schematic diagram of a device for removing multiple pollutants from waste gas of a setting machine and regenerating an adsorbent in situ.
Description of reference numerals: 1-waste gas inlet, 2-filter, 3-first stage steam-water heat exchanger, 4-second stage steam-water heat exchanger, 5-wet electrostatic dust collector, 6-adsorption tank A, 7-adsorption tank B, 8-adsorption tank C, 9-adsorption tank D, 10-third stage steam-water heat exchanger, 11-flue gas outlet, 12-oil-water separator, 13-cooling tower, 14-desorption air inlet, 15-catalytic burner, 16-gas heat exchanger, 17-regeneration waste gas outlet.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The setting machine waste gas multi-pollutant desorption and adsorbent in-situ regeneration device is used in the field of atmosphere pollution prevention and control, can efficiently control the setting machine waste gas multi-pollutants, can efficiently remove particulate matters, oil smoke and VOCs in the setting machine waste gas, has extremely low waste water and solid waste production, can eliminate 'white smoke' by utilizing waste gas waste heat, and has good economic benefit and application prospect.
The device mainly comprises a dust and oil fume removing device, a smoke and white removing device, a VOCs adsorption and regeneration device and an oil-water separation device. The dust and oil fume removing device comprises a filter 2 and a wet electrostatic dust collector 5. The smoke whitening device comprises a first-stage steam-water heat exchanger 3, a third-stage steam-water heat exchanger 10, a second-stage steam-water heat exchanger 4 and a water cooling tower 13. The VOCs adsorption and regeneration device comprises adsorption tanks, a catalytic combustor 15 and a gas-gas heat exchanger 16 which are arranged in parallel. The oil-water separation device comprises an oil-water separator 12. The inlet of the filter 2 is connected with the waste gas of the setting machine and is used for removing fiber dust and large-particle pollutants in the waste gas; an inlet of the first-stage steam-water heat exchanger 3 is connected with an outlet of the filter 2, and the first-stage steam-water heat exchanger 3 and a third-stage steam-water heat exchanger 10 at the tail end of the adsorption tank form a WGGH (water gas temperature gradient) system for increasing the exhaust gas temperature and realizing white elimination; an inlet of the second-stage steam-water heat exchanger 4 is connected with an outlet of the first-stage steam-water heat exchanger 3 and is used for further reducing the temperature of waste gas and reducing the water temperature for recycling through a water cooling tower 13; an inlet of the wet electrostatic dust collector 5 is connected with an outlet of the second-stage steam-water heat exchanger 4 and is used for efficiently removing particles and oil smoke in the waste gas of the setting machine; inlets of a plurality of adsorption tanks which are arranged in parallel are connected with an outlet of the wet electrostatic dust collector 5 and are used for adsorbing VOCs in the waste gas, and a VOCs adsorption regeneration device is arranged and comprises a catalytic combustor 15 and a gas-gas heat exchanger 16 and is used for in-situ regeneration of the adsorbent; and the inlet of a third stage steam-water heat exchanger 10 of the WGGH system formed by the first stage steam-water heat exchanger 3 is connected with the outlet of the adsorption tank. In addition, the device is provided with an oil-water separator 12 which is connected with the filter 2, the first stage steam-water heat exchanger 3, the second stage steam-water heat exchanger 4 and the wet electrostatic dust collector 5 and is used for realizing the oil-water separation of the washing wastewater of the filter 2, the first and second stage steam-water heat exchangers and the wet electrostatic dust collector 5.
Specifically, the filter 2 is a dry filter.
Specifically, the wet electrostatic precipitator 5 is vertical, and a demister is arranged at an outlet.
Specifically, the first stage steam-water heat exchanger 3 and the third stage steam-water heat exchanger 10 form a WGGH system.
In particular, the second stage steam-water heat exchanger 4 is used in combination with a cooling tower 13 for further reducing the temperature of the exhaust gas.
Specifically, the adsorption tank adopts a molecular sieve as a VOCs adsorbent.
Specifically, the catalytic combustor 15 employs a Pt or Pd-based noble metal catalyst, or a high efficiency transition metal composite oxide catalyst.
The treatment method of the waste gas multi-pollutant removing and adsorbent in-situ regeneration device of the setting machine comprises the following steps:
1) removing fiber dust and large particles in the waste gas by using a filter 2, and then cooling the waste gas by using a first-stage steam-water heat exchanger 3 and a second-stage steam-water heat exchanger 4 respectively, namely firstly reducing the temperature of the waste gas to be below 85 ℃ by using the first-stage steam-water heat exchanger 3, and then reducing the temperature of the waste gas to be below 45 ℃ by using the second-stage steam-water heat exchanger 4 and a water cooling tower 13, so that the oil smoke is promoted to be further condensed, and meanwhile, the saturated water content of the waste gas is reduced;
2) most of particulate matters and oil smoke in the waste gas are efficiently removed by using the wet electrostatic dust collector 5, and the removal efficiency of the particulate matters and the oil smoke of the wet electrostatic dust collector 5 is more than 95%;
3) adsorbing VOCs in the waste gas by using an adsorption tank, wherein the adsorption efficiency of the adsorbent is over 90 percent;
4) the temperature of waste gas is raised to be more than 80 ℃ by using a third stage steam-water heat exchanger 10 which forms a WGGH system with the first stage steam-water heat exchanger 3 to be discharged, and white smoke is eliminated;
5) the adsorption regeneration device for VOCs is used for periodically carrying out desorption regeneration on the adsorbent saturated in adsorption, the desorbed VOCs are degraded through catalytic combustion in the catalytic combustor 15, the inlet temperature of a catalyst bed layer is 280-350 ℃, the degradation efficiency of the VOCs is more than 97 percent, the heat exchange between the desorbed air (cold air) and the waste gas after combustion is carried out through the gas-gas heat exchanger 16 before the desorbed air enters the adsorption tank, and the temperature of the regenerated air of the adsorbent is 150-210 ℃;
6) the oil-water separator 12 is used for separating the oily wastewater discharged from the filter 2, the first stage steam-water heat exchanger 3, the second stage steam-water heat exchanger 4 and the wet electrostatic dust collector 5, and the waste oil is recovered.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, various possible combinations of the features are not described separately.
Claims (10)
1. The utility model provides a forming machine waste gas multi-pollutant desorption and adsorbent normal position regenerating unit which characterized in that: comprises a dust and oil fume removing device, a smoke and white removing device, a VOCs adsorption and regeneration device and an oil-water separation device; the device comprises a dust removal and lampblack removal device and a water cooling tower (13), wherein the dust removal and lampblack removal device comprises a filter (2) and a wet electrostatic dust collector (5), the flue gas whitening device comprises a first-stage steam-water heat exchanger (3), a third-stage steam-water heat exchanger (10), a second-stage steam-water heat exchanger (4) and a water cooling tower (13), the VOCs adsorption and regeneration device comprises an adsorption tank, a catalytic combustor (15) and a gas-gas heat exchanger (16), and the oil-water separation device comprises an oil-water separator (12); the inlet of the filter (2) is connected with the waste gas of the setting machine; an inlet of the first-stage steam-water heat exchanger (3) is connected with an outlet of the filter (2), and the first-stage steam-water heat exchanger (3) is connected with a third-stage steam-water heat exchanger (10) at an outlet of the adsorption tank; an inlet of the second-stage steam-water heat exchanger (4) is connected with an outlet of the first-stage steam-water heat exchanger (3), and the second-stage steam-water heat exchanger (4) is connected with a water cooling tower (13); an inlet of the wet electrostatic dust collector (5) is connected with an outlet of the second-stage steam-water heat exchanger (4); the inlets of a plurality of adsorption tanks which are arranged in parallel are connected with the outlet of the wet electrostatic dust collector (5), and the adsorption tanks are connected with the catalytic combustor (15) and the gas-gas heat exchanger (16); an inlet of the third-stage steam-water heat exchanger (10) is connected with an outlet of the adsorption tank; the oil-water separator (12) is connected with the filter (2), the first-stage steam-water heat exchanger (3), the second-stage steam-water heat exchanger (4) and the wet electrostatic dust collector (5).
2. The waste gas multi-pollutant removing and adsorbent in-situ regeneration device for the setting machine as claimed in claim 1, wherein: the filter (2) is a dry filter.
3. The waste gas multi-pollutant removing and adsorbent in-situ regeneration device for the setting machine as claimed in claim 1, wherein: the wet electrostatic dust collector (5) is vertical, and a demister is arranged at an outlet of the wet electrostatic dust collector.
4. The waste gas multi-pollutant removing and adsorbent in-situ regeneration device for the setting machine as claimed in claim 1, wherein: the first-stage steam-water heat exchanger (3) and the third-stage steam-water heat exchanger (10) form a WGGH system.
5. The waste gas multi-pollutant removing and adsorbent in-situ regeneration device for the setting machine as claimed in claim 1, wherein: the adsorption tank adopts a molecular sieve as a VOCs adsorbent.
6. The waste gas multi-pollutant removing and adsorbent in-situ regeneration device for the setting machine as claimed in claim 1, wherein: the catalytic combustor (15) adopts Pt or Pd base noble metal catalyst or high-efficiency transition metal composite oxide catalyst.
7. The treatment method of the setting machine waste gas multi-pollutant removal and adsorbent in-situ regeneration device according to claim 1, is characterized in that: the method comprises the following steps:
1) waste gas enters a filter (2) from a waste gas inlet (1), the filter (2) removes fiber dust and large particle matters in the waste gas, and then a first-stage steam-water heat exchanger (3) and a second-stage steam-water heat exchanger (4) respectively cool the waste gas;
2) the cooled waste gas enters a wet electrostatic dust collector (5), and the wet electrostatic dust collector (5) removes most of particulate matters and oil smoke in the waste gas;
3) waste gas from the wet electrostatic dust collector (5) enters an adsorption tank, and VOCs in the waste gas are adsorbed by the adsorption tank;
4) the waste gas with the VOCs removed enters a third-stage steam-water heat exchanger (10), and the waste gas is discharged after being heated by the third-stage steam-water heat exchanger (10);
5) the adsorption and regeneration device for VOCs is used for periodically carrying out desorption and regeneration on the adsorbent with saturated adsorption, the desorbed VOCs are degraded through catalytic combustion in the catalytic combustor (15), and the desorbed air enters the adsorption tank after exchanging heat with the combusted waste gas through the gas-gas heat exchanger (16);
6) and an oil-water separator (12) is used for separating oily wastewater discharged from the filter (2), the first-stage steam-water heat exchanger (3), the second-stage steam-water heat exchanger (4) and the wet electrostatic dust collector (5) and recovering waste oil.
8. The treatment method of the multi-pollutant removing and adsorbent in-situ regeneration device for the waste gas of the setting machine as claimed in claim 7, is characterized in that: in the step 1), firstly, the temperature of the waste gas is reduced to below 85 ℃ by using a first-stage steam-water heat exchanger (3), and then the temperature of the waste gas is reduced to below 45 ℃ by using a second-stage steam-water heat exchanger (4) and a water cooling tower (13).
9. The treatment method of the multi-pollutant removing and adsorbent in-situ regeneration device for the waste gas of the setting machine as claimed in claim 7, is characterized in that: in the step 4), a third-stage steam-water heat exchanger (10) which forms a WGGH system with the first-stage steam-water heat exchanger (3) is used for raising the temperature of the waste gas to be above 80 ℃ and discharging.
10. The treatment method of the multi-pollutant removing and adsorbent in-situ regeneration device for the waste gas of the setting machine as claimed in claim 7, is characterized in that: the temperature of the regeneration air of the adsorbent in the step 5) is 150-210 ℃; the inlet temperature of the catalyst bed is 280-350 ℃.
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Cited By (1)
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| CN115228242A (en) * | 2022-07-23 | 2022-10-25 | 中山市格源环保设备有限公司 | Aluminum product paint spraying organic waste gas treatment system and flue gas purification method thereof |
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Address after: 310012 99 Huaxing Road, Xihu District, Hangzhou, Zhejiang (Hangzhou Neusoft business building) Applicant after: Zhejiang Tiandi Environmental Protection Technology Co., Ltd Applicant after: Institute of Process Engineering, Chinese Academy of Sciences Address before: 310012 99 Huaxing Road, Xihu District, Hangzhou, Zhejiang (Hangzhou Neusoft business building) Applicant before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Applicant before: Institute of Process Engineering, Chinese Academy of Sciences |