CN215539163U - Filter-pressing purifier of carbide material production tail gas - Google Patents
Filter-pressing purifier of carbide material production tail gas Download PDFInfo
- Publication number
- CN215539163U CN215539163U CN202120741451.6U CN202120741451U CN215539163U CN 215539163 U CN215539163 U CN 215539163U CN 202120741451 U CN202120741451 U CN 202120741451U CN 215539163 U CN215539163 U CN 215539163U
- Authority
- CN
- China
- Prior art keywords
- shell
- tail gas
- calcium carbide
- filter
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of purification devices, in particular to a filter-pressing purification device for tail gas in calcium carbide material production, which aims at the problems of low filtration efficiency and single function in the prior art and provides a scheme. The tail gas purification device is reasonable in structure, stable in structure and simple in operation, not only can realize the cleaning of dust in the tail gas in the calcium carbide production, effectively ensure the removal efficiency of the dust in the calcium carbide furnace gas, but also can absorb carbon dioxide in the calcium carbide furnace gas, further ensure that the recovered calcium carbide furnace gas is recycled, reduce the production cost and be easy to popularize and use.
Description
Technical Field
The utility model relates to the field of purification devices, in particular to a filter-pressing purification device for tail gas generated in calcium carbide material production.
Background
Calcium carbide is an important industrial raw material, can replace petroleum to be used for producing polyvinyl chloride, is influenced by the rising of the price of petroleum in the international market and the growing demand of the domestic market for polyvinyl chloride, and in recent years, the calcium carbide industry in China is rapidly expanded, and a large amount of calcium carbide furnace gas is generated in the production process of the calcium carbide, and consists of a large amount of dust, carbon monoxide, hydrogen, methane and the like.
Calcium carbide furnace gas among the prior art often discharges after the burning, the waste in a large number of the energy has been caused, greenhouse gas's emission has also been aggravated simultaneously, when carrying out recycle to the calcium carbide furnace gas, dust and carbon dioxide in the calcium carbide furnace gas after the cooling need purify and get rid of, use in order to guarantee the normal burning of calcium carbide furnace gas of retrieving, traditional purifier often simple structure, it is lower to get rid of the dust of calcium carbide furnace gas effect efficiency, the function is single, for this reason, this scheme has provided a filter-pressing purifier of calcium carbide material production tail gas.
Disclosure of Invention
The utility model provides a filter-pressing purification device for tail gas in calcium carbide material production, which solves the problems of low filtration efficiency and single function in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a filter-pressing purification device for tail gas in calcium carbide material production comprises a shell, wherein a connecting pipe is fixedly sleeved at the top of the shell, a compression air inlet mechanism is arranged at the top of the connecting pipe, a transverse plate is fixedly connected to the inner side of the shell, a dust removal mechanism is arranged at the top of the transverse plate, and a carbon dioxide absorption mechanism is arranged at the bottom of the transverse plate;
the compression air inlet mechanism comprises a compression tank fixedly sleeved at the top of the outer side of the connecting pipe, a piston movably mounted in the compression tank, an air inlet pipe fixedly sleeved at the bottom of the outer side of the compression tank, the piston and the compression tank are matched with each other, an air inlet one-way valve is mounted in the air inlet pipe, an air outlet one-way valve is mounted in the connecting pipe, the compression air inlet mechanism further comprises a connecting rod hinged at the top of the piston, a driving motor mounted at the top of the compression tank and a turntable mounted at the output end of the driving motor, and the top of the connecting rod extends to the top of the compression tank and is rotatably connected with one side of the turntable, away from the driving motor;
dust removal mechanism is including being located the inside collection box of casing, seting up at the limiting plate of collecting the inside multiunit spout of box both sides outer wall, movable mounting at the spout, multiunit the one end of collecting the box of keeping away from of limiting plate all extends to the outside of spout and the inside lateral wall rigid coupling of casing, and the multiunit the limiting plate all sets up along the width direction of casing, dust removal mechanism still includes the multiunit standpipe of rigid coupling in collection box inboard bottom, multiunit the multiunit air inlet has evenly been seted up to the outside of standpipe, the equal movable sleeve in outside of standpipe is equipped with the filter screen, dust removal mechanism still including set up at the positive operation mouth of one side of casing, articulate the outside operating door of operation mouth, the operating door is mutually supported with the operation mouth.
Preferably, carbon dioxide absorption mechanism is including storing sodium hydroxide solution, the multiunit outlet duct of rigid coupling in the diaphragm bottom in the casing inboard bottom, multiunit the bottom of outlet duct all extends to below the sodium hydroxide solution liquid level, carbon dioxide absorption mechanism still includes the fluid-discharge tube of rigid coupling in the casing bottom, the fluid replacement tube of rigid coupling in the outside one side of casing, the delivery pipe all extends to the inside of casing with the one end of fluid replacement tube, and the delivery pipe all is located the below of diaphragm with the one end that the fluid replacement tube is located the casing inside.
Preferably, a pull handle is fixedly connected to one side of the front face of the collecting box.
Preferably, an L plate is rotatably mounted on one side of the front face of the shell, and the L plate is matched with the operating door.
Preferably, a liquid level observation window is formed in one side of the front face of the shell, liquid level scales are carved on the outer portion of the liquid level observation window, and a Ph meter is installed on one side of the front face of the shell.
Preferably, the piston is made of rubber.
The utility model has the beneficial effects that:
1. through mutually supporting of driving motor, carousel, connecting rod, piston, the check valve that admits air, the check valve that gives vent to anger, collection box, filter screen etc. the realization compresses the propulsion to the carbide burner gas after the cooling, and then makes the dust in the carbide burner gas collect in collecting the box inside, has effectually guaranteed the efficiency of getting rid of the dust in the carbide burner gas.
2. Through the mutual cooperation of a plurality of groups of air outlet pipes, sodium hydroxide solution, exhaust pipes and the like, the absorption of carbon dioxide in the calcium carbide furnace gas after dust filtration is realized, the occupation ratio of combustible components in the calcium carbide furnace gas is ensured, and the recycling of the calcium carbide furnace gas is facilitated.
The tail gas purification device is reasonable in structure, stable in structure and simple in operation, not only can realize the cleaning of dust in the tail gas in the calcium carbide production, effectively ensure the removal efficiency of the dust in the calcium carbide furnace gas, but also can absorb carbon dioxide in the calcium carbide furnace gas, further ensure that the recovered calcium carbide furnace gas is recycled, reduce the production cost and be easy to popularize and use.
Drawings
Fig. 1 is a front cross-sectional view of the present invention.
Fig. 2 is an enlarged view of the present invention at a.
Fig. 3 is an enlarged view of the present invention at B.
Fig. 4 is a front view of the present invention.
Reference numbers in the figures: 1. a housing; 2. a connecting pipe; 3. a compression tank; 4. an air inlet pipe; 5. a piston; 6. a connecting rod; 7. a drive motor; 8. a turntable; 9. an air inlet check valve; 10. an air outlet one-way valve; 11. a transverse plate; 12. a collection box; 13. a chute; 14. a limiting plate; 15. a vertical tube; 16. an air inlet; 17. a filter screen; 18. an operation port; 19. an operating door; 20. an L plate; 21. pulling a handle; 22. an air outlet pipe; 23. a sodium hydroxide solution; 24. a discharge pipe; 25. a liquid supplementing pipe; 26. a liquid discharge pipe; 27. a liquid level observation window; 28. and (4) Ph is counted.
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.
Referring to fig. 1-4, a filter-pressing purification device for tail gas in calcium carbide material production, comprising a housing 1, a connecting pipe 2 is fixedly sleeved on the top of the housing 1, a compression air inlet mechanism is arranged on the top of the connecting pipe 2, the compression air inlet mechanism comprises a compression tank 3 fixedly sleeved on the top of the outer side of the connecting pipe 2, a piston 5 movably installed inside the compression tank 3, an air inlet pipe 4 fixedly sleeved on the bottom of the outer side of the compression tank 3, the piston 5 and the compression tank 3 are mutually matched, the piston 5 is made of rubber material, an air inlet check valve 9 is installed inside the air inlet pipe 4, an air outlet check valve 10 is installed inside the connecting pipe 2, a connecting rod 6 is hinged on the top of the piston 5, a driving motor 7 is installed on the top of the compression tank 3, a turntable 8 is installed on the output end of the driving motor 7, the top of the connecting rod 6 extends to the top of the compression tank 3 and is rotatably connected with one side of the turntable 8 far away from the driving motor 7, the driving motor 7 drives the turntable 8 to rotate, so that the piston 5 reciprocates up and down inside the compression tank 3, and the calcium carbide furnace tail gas after being cooled enters the compression tank 3 through the air inlet one-way valve 9 and the air outlet one-way valve 10 in a mutually matched mode, and then enters the shell 1 through the connecting pipe 2.
A transverse plate 11 is fixedly connected to the inner side of the shell 1, a dust removing mechanism is arranged at the top of the transverse plate 11, the dust removing mechanism comprises an operation opening 18 arranged on one side of the front surface of the shell 1, an operation door 19 hinged to the outer part of the operation opening 18, an L plate 20 is rotatably arranged on one side of the front surface of the shell 1, the L plate 20 is matched with the operation door 19, a collecting box 12 is arranged inside the shell 1, a pull handle 21 is fixedly connected to one side of the front surface of the collecting box 12, a plurality of groups of sliding grooves 13 are respectively arranged on the outer walls of the two sides of the collecting box 12, limiting plates 14 are movably arranged inside the plurality of groups of sliding grooves 13, the limiting plates 14 are matched with the sliding grooves 13, the plurality of groups of limiting plates 14 are arranged along the width direction of the shell 1, one ends, far away from the collecting box 12, of the plurality of limiting plates 14 all extend to the outer part of the sliding grooves 13 and are fixedly connected with the inner side wall of the shell 1, a plurality of vertical pipes 15 are fixedly connected to the bottom of the inner side of the collecting box 12, the bottom of the vertical pipes 15 all extend to the bottom of the collecting box 12, multiunit air inlet 16 has evenly been seted up to multiunit standpipe 15's outside, and multiunit air inlet 16 all extends to standpipe 15's inside, and the equal movable sleeve in outside of multiunit standpipe 15 is equipped with filter screen 17, and after the dust in 1 inside carbide stove tail gas of casing is filtered through multiunit filter screen 17 to tail gas from connecting pipe 2, the below of collecting box 12 is discharged into from multiunit standpipe 15.
The bottom of the transverse plate 11 is provided with a carbon dioxide absorption mechanism, the carbon dioxide absorption mechanism comprises a sodium hydroxide solution 23 stored at the bottom of the inner side of the shell 1, the bottom of the transverse plate 11 is fixedly connected with a plurality of groups of air outlet pipes 22, the bottoms of the plurality of groups of air outlet pipes 22 all extend to below the liquid level of the sodium hydroxide solution 23, one side of the outer part of the shell 1 is fixedly connected with a liquid replenishing pipe 25 and a discharge pipe 24, one ends of the discharge pipe 24 and the liquid replenishing pipe 25 all extend to the inner part of the shell 1, one ends of the discharge pipe 24 and the liquid replenishing pipe 25 which are positioned in the shell 1 are both positioned below the transverse plate 11, the bottom of the shell 1 is fixedly connected with a liquid discharge pipe 26, one ends of the discharge pipe 26, the discharge pipe 24 and the liquid replenishing pipe 25 which are positioned in the outer part of the shell 1 are all provided with valves, tail gas discharged from the plurality of groups of vertical pipes 15 is discharged into the sodium hydroxide solution 23 through the plurality of air outlet pipes 22, and the carbon dioxide gas in the tail gas chemically reacts with the sodium hydroxide solution 23, absorb the carbon dioxide in the tail gas, liquid level observation window 27 has been seted up to casing 1's positive one side, liquid level observation window 27's outside is carved with the liquid level scale, Ph meter 28 is installed to casing 1's positive one side, Ph through Ph meter 28 to casing 1 inside sodium hydroxide solution 23 monitors, guarantee sodium hydroxide solution 23 to the absorptive capacity of carbon dioxide, and then the combustible gas's in the tail gas content has been guaranteed, be favorable to retrieving tail gas, after sodium hydroxide solution 23 absorbs the carbon dioxide in the tail gas, tail gas is stored from the outside of discharge pipe 24 discharge casing 1, retrieve, recycle.
The working principle is as follows: one end of the air inlet pipe 4, which is far away from the compression tank 3, is connected with a tail gas discharge pipe of the calcium carbide furnace, the driving motor 7 rotates to drive the piston 5 to do reciprocating piston motion in the compression tank 3, tail gas of the calcium carbide furnace is sucked into the compression tank 3 and is discharged into the shell 1 after being pressurized by the piston 5, tail gas with dust entering the shell 1 moves downwards, the dust in the tail gas is filtered by a plurality of groups of filter screens 17, the dust remains in the collection box 12, the tail gas after being filtered by the filter screens 17 enters the vertical pipe 15 through a plurality of groups of air inlets 16, is discharged into the bottom of the collection box 12 from the bottom of the vertical pipe 15 and is discharged through the bottoms of a plurality of groups of air outlet pipes 22, the bottoms of the plurality of groups of air outlet pipes 22 all extend to be below the liquid level of sodium hydroxide solution 23, so that the tail gas is in full contact with the sodium hydroxide solution 23, further, the sodium hydroxide solution 23 absorbs carbon dioxide in the tail gas, the content of combustible gas in the tail gas is improved, the Ph of the sodium hydroxide solution 23 in the shell 1 is monitored by the Ph meter 28, the absorption capacity of the sodium hydroxide solution 23 on the carbon dioxide is ensured, the content of the combustible gas in the tail gas is further ensured, the tail gas is favorably recovered, the tail gas is discharged to the outside of the shell 1 from the discharge pipe 24 after the carbon dioxide in the tail gas is absorbed by the sodium hydroxide solution 23, the tail gas is stored, recovered and reused, when dust stored in the collecting box 12 needs to be cleaned, the L plate 20 is rotated, the operating door 19 is opened, the collecting box 12 is pulled out of the shell 1 along the horizontal direction, the dust in the collecting box 12 is cleaned by the filter screen 17, and then the collecting box 12 is placed in the shell 1, the operation door 19 is closed, when the sodium hydroxide solution 23 in the shell 1 needs to be replaced, the valve on the liquid discharge pipe 26 is opened, the sodium hydroxide solution 23 in the shell 1 is discharged, then the sodium hydroxide solution 23 is supplemented into the shell 1 through the liquid supplementing pipe 25, and the supplementing amount of the sodium hydroxide solution 23 is determined by referring to the liquid level scale on the liquid level observation window 27.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Claims (6)
1. A filter pressing purification device for tail gas in calcium carbide material production comprises a shell (1), and is characterized in that a connecting pipe (2) is fixedly sleeved at the top of the shell (1), a compression air inlet mechanism is arranged at the top of the connecting pipe (2), a transverse plate (11) is fixedly connected to the inner side of the shell (1), a dust removal mechanism is arranged at the top of the transverse plate (11), and a carbon dioxide absorption mechanism is arranged at the bottom of the transverse plate (11);
the compression air inlet mechanism comprises a compression tank (3) fixedly sleeved at the top of the outer side of the connecting pipe (2), a piston (5) movably arranged in the compression tank (3), and an air inlet pipe (4) fixedly sleeved at the bottom of the outer side of the compression tank (3), the piston (5) is matched with the compression tank (3), an air inlet one-way valve (9) is arranged in the air inlet pipe (4), an air outlet one-way valve (10) is arranged inside the connecting pipe (2), the compression air inlet mechanism also comprises a connecting rod (6) hinged on the top of the piston (5), a driving motor (7) arranged on the top of the compression tank (3) and a turntable (8) arranged at the output end of the driving motor (7), the top of the connecting rod (6) extends to the top of the compression tank (3) and is rotationally connected with one side of the turntable (8) far away from the driving motor (7);
the dust removal mechanism comprises a collection box (12) positioned inside a shell (1), a plurality of groups of sliding grooves (13) formed in outer walls of two sides of the collection box (12), and a limiting plate (14) movably installed inside the sliding grooves (13), wherein one end, far away from the collection box (12), of the limiting plate (14) extends to the outside of the sliding grooves (13) and is fixedly connected with the inner side wall of the shell (1), the limiting plates (14) are arranged along the width direction of the shell (1), the dust removal mechanism further comprises a plurality of groups of vertical pipes (15) fixedly connected to the inner bottom of the collection box (12), a plurality of groups of air inlets (16) are uniformly formed in the outside of the vertical pipes (15), a plurality of groups of filter screens (17) are movably sleeved on the outside of the vertical pipes (15), the dust removal mechanism further comprises an operation opening (18) formed in one side of the front of the shell (1) and an operation door (19) hinged to the outside of the operation opening (18), the operation door (19) is matched with the operation opening (18).
2. The filter-pressing purification device for tail gas in calcium carbide material production according to claim 1, which is characterized in that, the carbon dioxide absorption mechanism comprises a sodium hydroxide solution (23) stored at the bottom of the inner side of the shell (1) and a plurality of groups of air outlet pipes (22) fixedly connected to the bottom of the transverse plate (11), the bottoms of the air outlet pipes (22) all extend to be below the liquid level of the sodium hydroxide solution (23), the carbon dioxide absorption mechanism also comprises a liquid discharge pipe (26) fixedly connected at the bottom of the shell (1), a liquid supplementing pipe (25) fixedly connected at one side of the outer part of the shell (1), and a discharge pipe (24) fixedly connected at one side of the outer part of the shell (1), one end of the discharge pipe (24) and one end of the liquid replenishing pipe (25) extend to the inside of the shell (1), and one ends of the discharge pipe (24) and the liquid supplementing pipe (25) which are positioned in the shell (1) are both positioned below the transverse plate (11).
3. The filter-pressing purification device for tail gas generated in calcium carbide material production according to claim 1, wherein a pull handle (21) is fixedly connected to one side of the front surface of the collection box (12).
4. The filter-pressing purification device for tail gas produced by calcium carbide materials as claimed in claim 1, wherein an L-shaped plate (20) is rotatably mounted on one side of the front surface of the housing (1), and the L-shaped plate (20) is matched with the operation door (19).
5. The filter-pressing purification device for tail gas produced in calcium carbide material production according to claim 1, wherein a liquid level observation window (27) is formed in one side of the front face of the shell (1), liquid level scales are marked outside the liquid level observation window (27), and a Ph meter (28) is installed on one side of the front face of the shell (1).
6. The filter-pressing purification device for tail gas generated in calcium carbide material production according to claim 1, wherein the piston (5) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120741451.6U CN215539163U (en) | 2021-04-13 | 2021-04-13 | Filter-pressing purifier of carbide material production tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120741451.6U CN215539163U (en) | 2021-04-13 | 2021-04-13 | Filter-pressing purifier of carbide material production tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215539163U true CN215539163U (en) | 2022-01-18 |
Family
ID=79856059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120741451.6U Active CN215539163U (en) | 2021-04-13 | 2021-04-13 | Filter-pressing purifier of carbide material production tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215539163U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588727A (en) * | 2022-02-09 | 2022-06-07 | 谢晓风 | Building decoration dust filter equipment for air purification |
| CN115090102A (en) * | 2022-07-27 | 2022-09-23 | 山东工业职业学院 | Environment-friendly tail gas treatment equipment for chemical production and treatment method thereof |
| CN117360981A (en) * | 2023-12-07 | 2024-01-09 | 万达集团股份有限公司 | Ethylene tar storage device with exhaust treatment |
-
2021
- 2021-04-13 CN CN202120741451.6U patent/CN215539163U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588727A (en) * | 2022-02-09 | 2022-06-07 | 谢晓风 | Building decoration dust filter equipment for air purification |
| CN115090102A (en) * | 2022-07-27 | 2022-09-23 | 山东工业职业学院 | Environment-friendly tail gas treatment equipment for chemical production and treatment method thereof |
| CN117360981A (en) * | 2023-12-07 | 2024-01-09 | 万达集团股份有限公司 | Ethylene tar storage device with exhaust treatment |
| CN117360981B (en) * | 2023-12-07 | 2024-03-01 | 万达集团股份有限公司 | Ethylene tar storage device with exhaust treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215539163U (en) | Filter-pressing purifier of carbide material production tail gas | |
| CN112551622A (en) | Seawater purification device | |
| CN213032931U (en) | Sieving mechanism is used in living beings granule processing | |
| CN113769499A (en) | Pulse bag type dust collector | |
| CN215275832U (en) | Chemical fertilizer high tower steam condensate recovery device with anti-corrosion function | |
| CN215962621U (en) | Dust purification equipment for industrial workshop | |
| CN215585756U (en) | Blast furnace feeding bag-type dust collector | |
| CN214289902U (en) | Multistage dust arrester installation of gypsum production line | |
| CN113559653A (en) | Industrial energy-saving emission-reducing type smoke dust purification device | |
| CN112934900A (en) | Dust removing device and dust removing method for pharmacy | |
| CN111603875A (en) | Waste gas purification treatment device for lost foam casting | |
| CN214554180U (en) | Municipal waste screening device | |
| CN219670144U (en) | Hydrolysis hydrogen production structure of fuel cell | |
| CN219947413U (en) | Briquetting device is collected to aluminium bits | |
| CN221005989U (en) | Converter flue gas degree of depth waste heat recovery dry-type dust pelletizing system | |
| CN215539164U (en) | Automatic recovery device for compressed export natural gas | |
| CN215016717U (en) | Portable solid-liquid separation dust bag for water suction machine of dust collector | |
| CN216498066U (en) | High-temperature automatic protection device of bag-type dust collector | |
| CN219848665U (en) | Tail gas utilization device of bag-type dust collector | |
| CN219865425U (en) | Gas compressor convenient to energy-conservation | |
| CN216011933U (en) | Power plant boiler flue gas waste heat recovery device | |
| CN220767552U (en) | Papermaking steam waste heat recovery system | |
| CN221333199U (en) | High-efficient sack cleaner | |
| CN220385887U (en) | Environment-friendly waste material filters collection device | |
| CN216620696U (en) | Flue gas waste heat recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |