CN111947393A - Chemical waste gas cooling treatment equipment - Google Patents
Chemical waste gas cooling treatment equipment Download PDFInfo
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- CN111947393A CN111947393A CN202010850637.5A CN202010850637A CN111947393A CN 111947393 A CN111947393 A CN 111947393A CN 202010850637 A CN202010850637 A CN 202010850637A CN 111947393 A CN111947393 A CN 111947393A
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- water
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- waste gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses chemical waste gas cooling treatment equipment which comprises a heat dissipation mechanism, a water cooling mechanism, a treatment mechanism and a combustion chamber, wherein the water cooling mechanism, the treatment mechanism and the combustion chamber are sequentially arranged on a fixing plate from left to right; the right end of the air inlet pipe is communicated with the treatment mechanism, the periphery of the end part of the air inlet pipe is also provided with a check valve, the treatment mechanism is also communicated with the combustion chamber on the right side, and the top end of the treatment mechanism is communicated with a liquid adding mechanism for adding reaction liquid and a stirring mechanism for assisting in uniform stirring; the top end of the combustion chamber is communicated with a connecting pipe with an electromagnetic valve. This waste gas cooling treatment facility for chemical industry not only can carry out dual cooling, can also react and catalytic combustion.
Description
Technical Field
The invention belongs to the technical field of chemical industry, and particularly relates to waste gas cooling treatment equipment for chemical industry.
Background
Chemical engineering is a short term for chemical processes, chemical industries, chemical engineering, and the like. The technology of changing the composition and structure of substances or synthesizing new substances by chemical methods belongs to the chemical production technology, namely the chemical process, and the obtained products are called chemicals or chemical products. Originally, the production of such products was performed in manual workshops, later developed into factories, and gradually developed into a specific production industry, i.e., the chemical industry. Chemical engineering is a science for researching the general rule of the production process of chemical products.
In the chemical production process, waste gas is generated, but if the waste gas is not treated, the direct discharge can affect the environment.
Therefore, in order to meet the requirement of practical use, the design and production of a chemical waste gas cooling treatment device are urgently needed.
Disclosure of Invention
The invention aims to provide a chemical waste gas cooling treatment device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a chemical waste gas cooling treatment device comprises a heat dissipation mechanism, a water cooling mechanism, a treatment mechanism and a combustion chamber, wherein the water cooling mechanism, the treatment mechanism and the combustion chamber are sequentially installed on a fixing plate from left to right;
the right end of the air inlet pipe is communicated with the treatment mechanism, the periphery of the end part of the air inlet pipe is also provided with a check valve, the treatment mechanism is also communicated with the combustion chamber on the right side, and the top end of the treatment mechanism is communicated with a liquid adding mechanism for adding reaction liquid and a stirring mechanism for assisting in uniform stirring;
the top end of the combustion chamber is communicated with a connecting pipe with an electromagnetic valve, the inner wall of the combustion chamber is provided with a burner, the inner wall of the combustion chamber is also welded with a filter stand, the inner wall of the filter stand is welded with a wire mesh with a catalyst, and the filter stand is arranged between the burner and the processing mechanism;
the heat dissipation mechanism comprises semicircular pipes, heat dissipation fins and support plates, wherein two groups of semicircular pipes which are matched with each other are arranged on the periphery of the air inlet pipe, the two groups of semicircular pipes are rotatably connected through hinges, the support plates are welded on the other sides of the semicircular pipes, the two groups of support plates are fixed through connecting bolts with nuts, and three groups of heat dissipation fins are welded on the outer walls of the two groups of semicircular pipes;
the liquid feeding mechanism includes connecting plate and the clamp of L style of calligraphy, the connecting plate is connected with processing mechanism through two sets of countersunk head bolts, the side welding of connecting plate has two sets of clamps, and the fixed liquid feeding pipe of clamp, and the tip welding of liquid feeding pipe leads to liquid channel inner wall at processing mechanism.
Preferably, water-cooling mechanism includes water-cooling tank and condenser one, water-cooling tank side welded puts quick-witted board top and has condenser one through multiunit screw connection, the refrigeration portion setting of condenser one is at the inner chamber of water-cooling tank, two sets of channels of ventilating have been seted up on the top of water-cooling tank, and two sets of channels inner walls of ventilating have welded respectively the outlet duct that communicates external equipment and have the gas release pipe of sealed lid.
Preferably, processing mechanism is including handling the case, the intercommunication is fought, the air exhauster and going out the tuber pipe, the passageway that ventilates has been seted up on the top of handling the case, and the passageway inner wall that ventilates has the air exhauster through multiunit screw connection, and the top welding of air exhauster has the intercommunication to fight, and the intercommunication has a tuber pipe between intercommunication fill and the combustion chamber, handles the side welded of case and puts quick-witted board top and have condenser two through multiunit screw connection, and the refrigeration portion setting of condenser two is handling the incasement chamber.
Preferably, the inner wall of the water cooling box of the water cooling mechanism and the inner wall of the treatment box of the treatment mechanism are both provided with temperature sensors through screws, and the side surfaces of the water cooling box and the treatment box are both communicated with a liquid outlet pipe with an electromagnetic valve.
Preferably, the top ends of the water cooling tank and the treatment tank are both connected with a liquid pump through screws, the liquid pump is communicated with a water outlet pipe for auxiliary liquid outlet, and the other side of the liquid pump is communicated with a tap water pipe.
Preferably, the side of water-cooling case and processing case has all seted up the perspective groove, and perspective inslot wall bonds and has had perspective window, and the scale mark has been seted up to the side of perspective window.
Preferably, rabbling mechanism includes rotating electrical machines, puddler and stirring leaf, the rotating electrical machines passes through the top of screw connection at processing mechanism's processing case, the output shaft of rotating electrical machines has the puddler through the coupling joint, and the lower half of puddler runs through and handles the case, the peripheral welding of puddler has the multiunit stirring leaf.
Preferably, four groups of supporting legs are welded between the combustion chamber and the fixing plate, and the fixing plate is connected with the ground through a plurality of groups of countersunk bolts.
The invention has the technical effects and advantages that: according to the chemical waste gas cooling treatment equipment, the heat dissipation mechanism can be used for assisting heat conduction of heat dissipation fins and performing natural heat dissipation, the water cooling mechanism is used for performing water cooling on the air inlet pipe by using the water liquid cooled by the condenser I, so that secondary heat dissipation is realized, and the temperature value of air entering the treatment mechanism is not too high; the air and the reaction liquid are mixed and reacted, and the high boiling point substances are treated by cooling, the reaction effect can be improved by the aid of a rotating motor of the stirring mechanism, and the liquid adding mechanism can fix the liquid adding pipe to ensure the stable liquid adding; the combustor of the combustion chamber burns the waste gas with the aid of the catalyst, so that the combustible gas is prevented from being discharged; this waste gas cooling treatment facility for chemical industry not only can carry out dual cooling, can also react and catalytic combustion.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a front view of the heat dissipation mechanism of the present invention;
FIG. 4 is a cross-sectional view of the combustion chamber of the present invention;
FIG. 5 is a schematic structural view of the liquid adding mechanism of the present invention;
fig. 6 is a schematic structural diagram of the stirring mechanism of the present invention.
In the figure: the device comprises a heat dissipation mechanism 1, a water cooling mechanism 2, a treatment mechanism 3, a combustion chamber 4, a fixing plate 5, an air inlet pipe 6, a liquid adding mechanism 7, a stirring mechanism 8, a combustor 9, a filter stand 10, a semicircular pipe 11, a heat dissipation fin 12, a connecting plate 13, a clamp 14, a water cooling tank 15, a first condenser 16, a treatment tank 17, an exhaust fan 18, an air outlet pipe 19, a second condenser 20, a liquid suction pump 21, a rotating motor 22, a stirring rod 23 and a stirring blade 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless otherwise indicated, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is directed.
The invention provides a chemical waste gas cooling treatment device as shown in figures 1-6, which comprises a heat dissipation mechanism 1, a water cooling mechanism 2, a treatment mechanism 3 and a combustion chamber 4, wherein the water cooling mechanism 2, the treatment mechanism 3 and the combustion chamber 4 are sequentially arranged on a fixed plate 5 from left to right, both sides of the water cooling mechanism 2 are provided with air inlet channels for air inlet pipes 6 to pass through, the air inlet pipes 6 are obliquely arranged in the water cooling mechanism 2 and can flow into a treatment box 17 along gravity when being cooled and condensed, the periphery of the air inlet pipes 6 is connected with a plurality of groups of heat dissipation mechanisms 1, and the plurality of groups of heat dissipation mechanisms 1 are arranged on the left side of the water cooling mechanism 2;
the right end of the air inlet pipe 6 is communicated with the treatment mechanism 3, the periphery of the end part of the air inlet pipe 6 is also provided with a check valve, the treatment mechanism 3 is also communicated with the combustion chamber 4 on the right side, and the top end of the treatment mechanism 3 is communicated with a liquid adding mechanism 7 for adding reaction liquid and a stirring mechanism 8 for assisting in uniform stirring;
the top end of the combustion chamber 4 is communicated with a connecting pipe with an electromagnetic valve, the inner wall of the combustion chamber 4 is provided with a combustor 9, the combustor 9 can be selected from micro equipment, the inner wall of the combustion chamber 4 is also welded with a filter frame 10, the inner wall of the filter frame 10 is welded with a wire netting with a catalyst, the wire netting can be detached when not needed, and the filter frame 10 is arranged between the combustor 9 and the processing mechanism 3;
the heat dissipation mechanism 1 comprises semicircular pipes 11, heat dissipation fins 12 and support plates, two groups of semicircular pipes 11 which are matched with each other are arranged on the periphery of the air inlet pipe 6, the two groups of semicircular pipes 11 are rotatably connected through hinges, the support plates are welded on the other sides of the semicircular pipes 11, the two groups of support plates are fixed through connecting bolts with nuts, and the three groups of heat dissipation fins 12 are welded on the outer walls of the two groups of semicircular pipes 11, so that the effect of assisting natural heat dissipation is achieved;
Specifically, water-cooling mechanism 2 includes water-cooling tank 15 and condenser 16, 15 side welded of water-cooling tank puts quick-witted board top and has condenser 16 through multiunit screw connection, the refrigeration portion of condenser 16 sets up the inner chamber at water-cooling tank 15, two sets of channels of ventilating have been seted up on the top of water-cooling tank 15, and two sets of channels of ventilating inner walls have welded respectively the outlet duct that communicates external equipment and have the gas release pipe of sealed lid.
Specifically, processing mechanism 3 is fought, air exhauster 18 and play tuber pipe 19 including handling case 17, intercommunication, the passageway of ventilating has been seted up on the top of handling case 17, and the passageway inner wall that ventilates has air exhauster 18 through multiunit screw connection, and the top welding of air exhauster 18 has the intercommunication to fight, and the intercommunication is fought and is gone out tuber pipe 19 between 4 with the combustion chamber, handles the side welded of case 17 and puts quick-witted board top and have two 20 condensers through multiunit screw connection, and two 20 refrigerating portion settings of condenser are handling the 17 inner chambers of case.
Specifically, temperature sensors are mounted on the inner wall of the water cooling box 15 of the water cooling mechanism 2 and the inner wall of the processing box 17 of the processing mechanism 3 through screws, and the side surfaces of the water cooling box 15 and the processing box 17 are communicated with liquid outlet pipes with electromagnetic valves.
Specifically, the top ends of the water cooling tank 15 and the treatment tank 17 are both connected with a liquid pump 21 through screws, the liquid pump 21 is communicated with a water outlet pipe for auxiliary liquid outlet, and the other side of the liquid pump 21 is communicated with a tap water pipe.
Specifically, the water cooling tank 15 and the side of handling the case 17 have all been seted up perspective groove, and perspective inslot wall bonds and has perspective window, and the scale mark has been seted up to the side of perspective window.
Specifically, rabbling mechanism 8 includes rotating electrical machines 22, puddler 23 and stirring leaf 24, rotating electrical machines 22 passes through the top of the processing case 17 of screw connection at processing mechanism 3, rotating electrical machines 22's output shaft has puddler 23 through the coupling joint, and the lower half of puddler 23 runs through and handles case 17, the peripheral welding of puddler 23 has multiunit stirring leaf 24.
Specifically, four groups of supporting legs are welded between the combustion chamber 4 and the fixing plate 5, and the fixing plate 5 is connected with the ground through multiple groups of countersunk bolts.
The working principle of the waste gas cooling treatment equipment for the chemical industry is that before air blowing, a liquid pump 21 is started, water liquid is led into a water cooling box 15 and a treatment box 17, reaction liquid is led into the treatment box 17 through a liquid adding pipe, a first condenser 16, a second condenser 20 and a rotary motor 22 are started, when waste air needs to be treated, air blowing equipment of an air inlet pipe 6 is started, an exhaust fan 18 is started, the waste air is blown into the treatment box 17 from the air inlet pipe 6, natural heat dissipation is assisted by heat dissipation fins 12 of a heat dissipation mechanism 1 during circulation, the cooled water liquid can cool the air inlet pipe 6 and the waste air in the air inlet pipe 6, the waste air is blown into the treatment box 17, the rotary motor 22 drives a stirring rod 23 and a stirring blade 24 to rotate so as to assist the reaction of the waste air and then circulate into a combustion chamber 4, and a combustor 9 is started to burn the air after the waste air is finished, and after the gas is filled, opening the electromagnetic valve of the connecting pipe, deflating, and then carrying out secondary gas filling treatment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a waste gas cooling treatment facility for chemical industry, includes heat dissipation mechanism (1), water-cooling mechanism (2), processing mechanism (3) and combustion chamber (4), its characterized in that: the water cooling mechanism (2), the processing mechanism (3) and the combustion chamber (4) are sequentially installed on the fixing plate (5) from left to right, air inlet channels for air inlet pipes (6) to penetrate are formed in the two sides of the water cooling mechanism (2), the air inlet pipes (6) are obliquely arranged in the water cooling mechanism (2), a plurality of groups of heat dissipation mechanisms (1) are connected to the periphery of the air inlet pipes (6), and the plurality of groups of heat dissipation mechanisms (1) are arranged on the left side of the water cooling mechanism (2);
the right end of the air inlet pipe (6) is communicated with the processing mechanism (3), the periphery of the end part of the air inlet pipe (6) is further provided with a check valve, the processing mechanism (3) is further communicated with the combustion chamber (4) on the right side, and the top end of the processing mechanism (3) is communicated with a liquid adding mechanism (7) for adding reaction liquid and a stirring mechanism (8) for assisting in stirring;
the top end of the combustion chamber (4) is communicated with a connecting pipe with an electromagnetic valve, a combustor (9) is installed on the inner wall of the combustion chamber (4), a filter frame (10) is welded on the inner wall of the combustion chamber (4), an iron wire net with a catalyst is welded on the inner wall of the filter frame (10), and the filter frame (10) is arranged between the combustor (9) and the processing mechanism (3);
the heat dissipation mechanism (1) comprises semicircular pipes (11), heat dissipation fins (12) and support plates, wherein two groups of semicircular pipes (11) which are matched with each other are arranged on the periphery of the air inlet pipe (6), the two groups of semicircular pipes (11) are rotatably connected through hinges, the support plates are welded on the other sides of the semicircular pipes (11), the two groups of support plates are fixed through connecting bolts with nuts, and the three groups of heat dissipation fins (12) are welded on the outer walls of the two groups of semicircular pipes (11);
liquid feeding mechanism (7) are including connecting plate (13) and clamp (14) of L style of calligraphy, connecting plate (13) are connected with processing mechanism (3) through two sets of countersunk head bolts, the side welding of connecting plate (13) has two sets of clamps (14), and the fixed liquid feeding pipe of clamp (14), and the tip welding of liquid feeding pipe leads to liquid passageway inner wall at processing mechanism (3).
2. The chemical waste gas temperature reduction treatment equipment according to claim 1, characterized in that: water-cooling mechanism (2) are including water-cooling tank (15) and condenser (16), water-cooling tank (15) side welded puts quick-witted board top and has condenser (16) through multiunit screw connection, the refrigeration portion setting of condenser (16) is at the inner chamber of water-cooling tank (15), two sets of channels of ventilating have been seted up on the top of water-cooling tank (15), and two sets of channels of ventilating inner walls of ventilating have welded respectively the outlet duct that communicates external equipment and have the gas release pipe of sealed lid.
3. The chemical waste gas temperature reduction treatment equipment according to claim 1, characterized in that: processing mechanism (3) are fought, air exhauster (18) and play tuber pipe (19) including handling case (17), intercommunication, the passageway that ventilates has been seted up on the top of handling case (17), and the passageway inner wall that ventilates has air exhauster (18) through multiunit screw connection, and the top welding of air exhauster (18) has the intercommunication to fight, and the intercommunication is fought and is had out tuber pipe (19) between combustion chamber (4), and the side welded of handling case (17) puts quick-witted board top and has two (20) of condenser through multiunit screw connection, and the refrigeration portion setting of two (20) of condenser is handling case (17) inner chamber.
4. The chemical waste gas temperature reduction treatment equipment according to claim 1, characterized in that: temperature sensor is all installed through the screw to the inner wall of water-cooling tank (15) inner wall of water-cooling mechanism (2) and the processing case (17) of processing mechanism (3), and the side of water-cooling tank (15) and processing case (17) all communicates the drain pipe that has the solenoid valve.
5. The chemical waste gas temperature reduction treatment equipment according to claim 4, characterized in that: the top ends of the water cooling tank (15) and the treatment tank (17) are both connected with a liquid pump (21) through screws, the liquid pump (21) is communicated with a water outlet pipe for auxiliary liquid outlet, and the other side of the liquid pump (21) is communicated with a tap water pipe.
6. The chemical waste gas temperature reduction treatment equipment according to claim 4, characterized in that: perspective grooves are formed in the side faces of the water cooling tank (15) and the side faces of the treatment tank (17), the inner walls of the perspective grooves are bonded with perspective windows, and scale marks are formed in the side faces of the perspective windows.
7. The chemical waste gas temperature reduction treatment equipment according to claim 1, characterized in that: rabbling mechanism (8) include rotating electrical machines (22), puddler (23) and stirring leaf (24), rotating electrical machines (22) are through the top of the processing case (17) of screw connection at processing mechanism (3), the output shaft of rotating electrical machines (22) has puddler (23) through the coupling joint, and the lower half of puddler (23) runs through and handles case (17), the periphery welding of puddler (23) has multiunit stirring leaf (24).
8. The chemical waste gas temperature reduction treatment equipment according to claim 1, characterized in that: four groups of supporting legs are welded between the combustion chamber (4) and the fixing plate (5), and the fixing plate (5) is connected with the ground through a plurality of groups of countersunk bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850637.5A CN111947393A (en) | 2020-08-21 | 2020-08-21 | Chemical waste gas cooling treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850637.5A CN111947393A (en) | 2020-08-21 | 2020-08-21 | Chemical waste gas cooling treatment equipment |
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| CN111947393A true CN111947393A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010850637.5A Pending CN111947393A (en) | 2020-08-21 | 2020-08-21 | Chemical waste gas cooling treatment equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737976A1 (en) * | 1995-08-23 | 1997-02-28 | Dacosta Francis | Anti-pollution procedure for petrol or diesel engine exhaust gases |
| CN109621642A (en) * | 2018-12-12 | 2019-04-16 | 孙鑫 | A kind of energy-saving Chemical Manufacture emission-control equipment |
| CN208952743U (en) * | 2018-08-17 | 2019-06-07 | 广州赛唯热工设备有限公司 | A kind of heat exchanger components and waste gas residual heat recover |
| CN110013754A (en) * | 2019-04-26 | 2019-07-16 | 南京工业职业技术学院 | A kind of equipment for treating industrial waste gas of high-efficiency environment friendly |
| CN110252041A (en) * | 2019-07-31 | 2019-09-20 | 莫庆锋 | A kind of energy saving and environment friendly equipment for treating industrial waste gas |
| CN210487412U (en) * | 2019-09-06 | 2020-05-08 | 江苏方朔环境科技有限公司 | Multistage industrial waste gas sampling device |
-
2020
- 2020-08-21 CN CN202010850637.5A patent/CN111947393A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737976A1 (en) * | 1995-08-23 | 1997-02-28 | Dacosta Francis | Anti-pollution procedure for petrol or diesel engine exhaust gases |
| CN208952743U (en) * | 2018-08-17 | 2019-06-07 | 广州赛唯热工设备有限公司 | A kind of heat exchanger components and waste gas residual heat recover |
| CN109621642A (en) * | 2018-12-12 | 2019-04-16 | 孙鑫 | A kind of energy-saving Chemical Manufacture emission-control equipment |
| CN110013754A (en) * | 2019-04-26 | 2019-07-16 | 南京工业职业技术学院 | A kind of equipment for treating industrial waste gas of high-efficiency environment friendly |
| CN110252041A (en) * | 2019-07-31 | 2019-09-20 | 莫庆锋 | A kind of energy saving and environment friendly equipment for treating industrial waste gas |
| CN210487412U (en) * | 2019-09-06 | 2020-05-08 | 江苏方朔环境科技有限公司 | Multistage industrial waste gas sampling device |
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Application publication date: 20201117 |