CN112675652A - Dust cleaning equipment for mural repair - Google Patents
Dust cleaning equipment for mural repair Download PDFInfo
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- CN112675652A CN112675652A CN202011551234.7A CN202011551234A CN112675652A CN 112675652 A CN112675652 A CN 112675652A CN 202011551234 A CN202011551234 A CN 202011551234A CN 112675652 A CN112675652 A CN 112675652A
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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
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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Abstract
The invention discloses dust cleaning equipment for repairing murals, and relates to the technical field of novel mural repairing devices. The dust treatment device comprises a dust treatment box, wherein one end of the dust treatment box is fixedly connected with a leading-in analysis structure, and the top end of the dust treatment box is fixedly connected with an internal and external synchronous humidifying structure. According to the invention, through the introduction of the matching design of the analysis structure and the internal and external synchronous humidification structure, the device is convenient for rapidly collecting, processing and checking dust gas in the use process, and is matched with the synchronous humidification to complete the synchronous humidification of the external gas and the recovered gas, so that the flying of dust is avoided, the functionality of the device is greatly improved, and through the design of the automatic electrostatic synchronous dust removal structure, the device is convenient for completing the synchronous dust collection through the generation of static while carrying out wind power dust collection, and the synchronous use of wind power and static is utilized, so that the more efficient dust removal performance is achieved.
Description
Technical Field
The invention relates to the technical field of novel mural repairing devices, in particular to dust cleaning equipment for mural repairing.
Background
The wall painting is recorded on the wall as early as Han dynasty, the wall painting is mostly on a grotto, a coffin chamber or a temple wall, modern process and cultural breath are combined at present, the wall painting is more and more diversified and personalized, the wall painting is more applied by people during decoration, a plurality of modern wall paintings need to be continuously repaired, but a large amount of dust is generated in the repairing process, corresponding cleaning equipment is needed to avoid the influence of the dust on air, however, the existing device is not convenient to obtain the data of the dust content in the air, is not convenient to continuously control in the using process, and lacks of continuous humidifying treatment of the air which is collected and contains the dust, so that the dust which is collected and outside continuously floats, and lacks of a corresponding structure for efficiently recycling the dust.
SUMMARY OF THE PATENT FOR INVENTION
The invention aims to provide dust cleaning equipment for repairing murals, which solves the existing problems: the existing device is not convenient to obtain the data of the dust content in the air in the using process, is not convenient to continuously control, and lacks the continuous humidifying treatment of the collected and dust-containing air, so that the collected and outside dust is continuously blown.
In order to achieve the purpose, the invention provides the following technical scheme: a dust cleaning device for mural repair comprises a dust processing box, wherein one end of the dust processing box is fixedly connected with a leading-in analysis structure, the top end of the dust processing box is fixedly connected with an internal and external synchronous humidification structure, one side of the leading-in analysis structure is fixedly connected with an automatic electrostatic synchronous dust removal structure, one end to the other end inside the dust processing box is sequentially and fixedly connected with a first filter plate, a second filter plate and a third filter plate, the leading-in analysis structure comprises a built-in carrying box, a wind guide column, an extension carrying plate, a laser detection lamp, a dispersion plate, an overflowing column, a photosensitive reaction plate and a processing circuit board, the inner side of the built-in carrying box is fixedly connected with an overflowing column, the two ends of the overflowing column are fixedly connected with the wind guide column, the top end of the built-in carrying box is fixedly connected with the extension carrying plate through screws, the inboard fixedly connected with laser detection lamp on extension carry board top, the bottom welding of laser detection lamp has the dispersion board, the inboard bottom fixedly connected with photosensitive reaction plate and the processing circuit board of built-in carry case, the processing circuit board is located the bottom of photosensitive reaction plate, photosensitive reaction plate and processing circuit board are electric connection.
Preferably, inside and outside synchronous humidification structure includes that the moisture produces case, water storage tank, water pump pressure boost contact tube, heating gasification case, electric heat heating pipe, gasification contact tube and cooling eduction plate, the moisture produces one side fixedly connected with water storage tank of case, the one end welding of water storage tank has water pump pressure boost contact tube, the other end and the heating gasification case welded connection of water pump pressure boost contact tube, a plurality of electric heat heating pipes of inside fixedly connected with of heating gasification case, one side that the electric heat heated the pipe is connected with the cooling eduction plate through the gasification contact tube, one side welding of cooling eduction plate has the drainage tube, a plurality of outer row of humidifying holes have been seted up in the outside of drainage tube.
Preferably, automatic synchronous dust removal structure of static carries on support frame, second friction plate and collection hopper including automatic reciprocal static production structure, first friction plate, complex, the outside fixed connection that screw and built-in carrying box were passed through to one side that automatic reciprocal static produced the structure, the first friction plate of one end fixedly connected with of automatic reciprocal static production structure, one side that the complex carried the support frame welds in the outside that built-in carried the box, the one end fixedly connected with second friction plate of complex carrying the support frame, the bottom welding of complex carrying the support frame has the collection hopper.
Preferably, the automatic reciprocating static electricity generating structure comprises a matching carrying frame, a protection inner loading frame, a power positioning block, a motor, an eccentric driving disc, a linkage push rod, a matching power slide block, a spring limiting column and a C-shaped carrying plate, one end of the matching and carrying frame is welded with a protective internal frame, the inner side of the bottom end of the matching and carrying frame is fixedly connected with a power positioning block, one end of the power positioning block is fixedly connected with a motor through a screw, the output end of the motor is fixedly connected with an eccentric driving disk, one end of the eccentric driving disk is sleeved with a linkage push rod, the top end of the linkage push rod is sleeved with a matching power slide block, the cooperation power slider is located the inboard top of cooperation year frame, the top and the bottom of cooperation power slider all are connected with cooperation year frame through the spacing post of spring, the welding of one side of cooperation power slider has the C type to take the board.
Preferably, one side welding of cooperation power slider has the forked tail sliding block, the inboard of cooperation carrier top has been seted up and has been joined in marriage and lead the dovetail, join in marriage and lead the dovetail and be clearance fit with the forked tail sliding block.
Preferably, one end of the first friction plate is attached to one end of the second friction plate, and the first friction plate and the second friction plate are made of polyvinyl chloride.
Preferably, an electric heating resistance wire is fixedly connected inside the electric heating tube, and the electric heating resistance wire is made of iron chromium aluminum.
Preferably, the material of the light dispersion plate and the material of the flow-through column are both glass, and the type of the photosensitive reaction plate is SD 3600/5310.
Preferably, the top of laser detection lamp is fixed with the digital screen, the inside of processing circuit board is loaded with signal amplification circuit, microprocessor and signal derivation module, be electric connection between microprocessor and signal amplification circuit and the signal derivation module, the model of microprocessor is A80386DX16, the model of signal derivation module is H7118DTC, the digital screen is electric connection with the signal derivation module.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the matched design of the introduction analysis structure and the internal and external synchronous humidification structure, the device is convenient for rapidly collecting, processing and checking dust gas in the use process, and synchronous humidification of the external gas and the recovered gas is completed by matching with the synchronous humidification, so that dust flying is avoided, and the functionality of the device is greatly improved;
2. according to the invention, through the design of the automatic electrostatic synchronous dust removal structure, the device can collect dust by wind power and simultaneously facilitate synchronous dust collection by generating static electricity, and the synchronous use of wind power and static electricity is utilized, so that the more efficient dust removal performance is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention patent, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a top view of the present invention as a whole;
FIG. 3 is a schematic diagram of a partial structure of an import analysis structure according to the present invention;
FIG. 4 is a partial structural view of the inside and outside synchronous humidifying structure according to the present invention;
FIG. 5 is a schematic view of a partial structure of an automated electrostatic synchronous dust removal structure according to the present invention;
FIG. 6 is a schematic diagram of a partial structure of an automated reciprocal static electricity generating structure according to the present invention.
In the figure: 1. a dust treatment box; 2. importing an analysis structure; 3. an internal and external synchronous humidifying structure; 4. an automatic electrostatic synchronous dust removal structure; 5. a carrying box is arranged in the box; 6. a wind guide post; 7. extending the carrying plate; 8. detecting an irradiation lamp by laser; 9. a dispersion plate; 10. a flow-through column; 11. a photosensitive reaction plate; 12. processing the circuit board; 13. a first filter plate; 14. a second filter plate; 15. a third filter plate; 16. a moisture generating tank; 17. a water storage tank; 18. a water pump supercharging delivery pipe; 19. heating the gasification box; 20. an electric heating tube; 21. a gasification delivery line; 22. cooling the lead-out plate; 23. a drainage tube; 24. an outer row of humidifying holes; 25. an automatic reciprocating static electricity generating structure; 26. a first friction plate; 27. compounding a carrying support frame; 28. a second friction plate; 29. a collecting hopper; 30. matching a lapping frame; 31. protecting the built-in frame; 32. a power positioning block; 33. a motor; 34. an eccentric driving disk; 35. a linkage push rod; 36. matching with a power slide block; 37. a spring limiting post; 38. c-shaped carrying plate.
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. 1-6, a dust cleaning device for mural repair comprises a dust processing box 1, one end of the dust processing box 1 is fixedly connected with a leading-in analysis structure 2, the top end of the dust processing box 1 is fixedly connected with an internal and external synchronous humidifying structure 3, one side of the leading-in analysis structure 2 is fixedly connected with an automatic electrostatic synchronous dust removing structure 4, one end to the other end inside the dust processing box 1 is fixedly connected with a first filter plate 13, a second filter plate 14 and a third filter plate 15 in sequence, the leading-in analysis structure 2 comprises an internal loading box 5, a wind guiding column 6, an extension loading plate 7, a laser detection radiation lamp 8, a dispersion light plate 9, a flow passing column 10, a photosensitive reaction plate 11 and a processing circuit board 12, the inner side of the internal loading box 5 is fixedly connected with a flow passing column 10, two ends of the flow passing column 10 are fixedly connected with the wind guiding column 6, the top end of the internal loading box 5 is fixedly connected with the, the inner side of the top end of the extension carrying plate 7 is fixedly connected with a laser detection irradiation lamp 8, the bottom end of the laser detection irradiation lamp 8 is welded with a dispersion plate 9, the bottom end of the inner side of the built-in carrying box 5 is fixedly connected with a photosensitive reaction plate 11 and a processing circuit board 12, the processing circuit board 12 is positioned at the bottom end of the photosensitive reaction plate 11, and the photosensitive reaction plate 11 and the processing circuit board 12 are electrically connected;
the light dispersion plate 9 and the flow passing column 10 are made of glass, the type of the photosensitive reaction plate 11 is SD3600/5310, so that laser irradiated at the laser detection irradiation lamp 8 is conveniently subjected to light dispersion and amplification through the light dispersion plate 9 by the principle of scattering of a convex lens of the light dispersion plate, the laser is contacted with dust gas guided through the wind guide column 6 and is reflected again by dust to form a small light spot signal and is guided to the photosensitive reaction plate 11, a digital display screen is fixed at the top end of the laser detection irradiation lamp 8, a signal amplification circuit, a microprocessor and a signal derivation module are mounted inside the processing circuit board 12, the microprocessor, the signal amplification circuit and the signal derivation module are electrically connected, the microprocessor is A80386DX16, the signal derivation module is H7118DTC, the digital display screen and the signal derivation module are electrically connected, an electric signal guided out from the photosensitive reaction plate 11 is amplified by the signal amplification circuit and then is guided into the microprocessor, the signal is processed by a microprocessor to obtain the dust content in unit time, and finally the obtained data is led into a digital display screen for reading through a signal lead-out module to obtain the specific dust content in the processing and repairing process so as to select a processing means;
the internal and external synchronous humidifying structure 3 comprises a moisture generating tank 16, a water storage tank 17, a water pump pressurization delivery pipe 18, a heating gasification tank 19, an electric heating pipe 20, a gasification delivery pipe 21 and a cooling delivery plate 22, wherein the water storage tank 17 is fixedly connected to one side of the moisture generating tank 16, the water pump pressurization delivery pipe 18 is welded to one end of the water storage tank 17, the other end of the water pump pressurization delivery pipe 18 is welded to the heating gasification tank 19, a plurality of electric heating pipes 20 are fixedly connected to the inside of the heating gasification tank 19, one side of each electric heating pipe 20 is connected to the cooling delivery plate 22 through the corresponding gasification delivery pipe 21, a drainage pipe 23 is welded to one side of the cooling delivery plate 22, a plurality of external drainage humidifying holes 24 are formed in the outer side of the drainage pipe 23, a plurality of electric heating resistance wires are fixedly connected to the inside of the electric heating pipes 20, and the electric resistance;
specifically, the water stored in the water storage tank 17 is quantitatively led out through the water pump pressurization leading-out pipe 18, enters the heating gasification box 19, the water in the heating gasification box 19 is heated and gasified through the continuous high heat of the electric heating pipe 20, the gasified water vapor is led into the cooling leading-out plate 22 through the gasification leading-out pipe 21, the heating power of the water vapor is adsorbed to a certain extent through the cooling leading-out plate 22, and then the water vapor is led out through the drainage pipe 23, one end of the draft tube 23 is connected with the dust processing box 1, so that the steam is directly guided into the dust processing box 1, the dust gas guided into the dust processing box 1 is humidified, a part of humidity is guided into the air by the outer discharge humidifying hole 24, humidifying and weighting the dust in the air by using humidity, so that the dust cannot fly, and the dust cannot fly in the treatment process;
the automatic static synchronous dust removing structure 4 comprises an automatic reciprocating static generating structure 25, a first friction plate 26, a composite carrying support frame 27, a second friction plate 28 and a collecting hopper 29, wherein one side of the automatic reciprocating static generating structure 25 is fixedly connected with the outer side of the built-in carrying box 5 through a screw, one end of the automatic reciprocating static generating structure 25 is fixedly connected with the first friction plate 26, one side of the composite carrying support frame 27 is welded on the outer side of the built-in carrying box 5, one end of the composite carrying support frame 27 is fixedly connected with the second friction plate 28, the bottom end of the composite carrying support frame 27 is welded with the collecting hopper 29, the automatic reciprocating static generating structure 25 comprises a matching carrying frame 30, a protective built-in frame 31, a power positioning block 32, a motor 33, a driving disc 34, a linkage push rod 35, a matching power sliding block 36, a spring limiting column 37 and a C-type carrying plate 38, one end of the matching carrying frame 30 is welded with a protection inner carrying frame 31, the inner side of the bottom end of the matching carrying frame 30 is fixedly connected with a power positioning block 32, one end of the power positioning block 32 is fixedly connected with a motor 33 through a screw, the output end of the motor 33 is fixedly connected with an eccentric driving disc 34, one end of the eccentric driving disc 34 is sleeved with a linkage push rod 35, the top end of the linkage push rod 35 is sleeved with a matching power slide block 36, the matching power slide block 36 is positioned at the top end of the inner side of the matching carrying frame 30, the top end and the bottom end of the matching power slide block 36 are both connected with the matching carrying frame 30 through a spring limiting column 37, one side of the matching power slide block 36 is welded with a C-shaped carrying plate 38, one side of the matching power slide block 36 is welded with a sliding block dovetail, the inner side of the top end of the matching carrying frame 30 is provided with, one end of the first friction plate 26 is attached to one end of the second friction plate 28, and the first friction plate 26 and the second friction plate 28 are both made of polyvinyl chloride, so that sufficient static electricity can be adsorbed through contact friction of the polyvinyl chloride;
specifically, the motor 33 outputs torque to drive the eccentric driving disk 34 to complete rotation, the eccentric design of the eccentric driving disk 34 is utilized to enable the eccentric driving disk 34 to conveniently form a highest point and a lowest point in the rotation process, so as to drive the linkage push rod 35 to complete lifting pushing, the linkage push rod 35 is connected with the matching power slide block 36, the matching power slide block 36 is driven by the linkage push rod 35 to lift and slide in the matching carrying frame 30, the spring limiting column 37 is utilized to complete limiting of the matching power slide block 36, the matching power slide block 36 is connected with the C-shaped carrying plate 38, the C-shaped carrying plate 38 is utilized to drive the first friction plate 26 to complete lifting movement, and the first friction plate 26 is contacted with the second friction plate 28 to generate a large amount of electrostatic adsorption dust in the movement process.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a dust cleaning equipment for mural painting restoration, includes dust treatment case (1), its characterized in that: the dust treatment box is characterized in that one end of the dust treatment box (1) is fixedly connected with a leading-in analysis structure (2), the top end of the dust treatment box (1) is fixedly connected with an internal and external synchronous humidifying structure (3), one side of the leading-in analysis structure (2) is fixedly connected with an automatic electrostatic synchronous dust removal structure (4), one end of the interior of the dust treatment box (1) is fixedly connected with a first filter plate (13), a second filter plate (14) and a third filter plate (15) from the other end in sequence, the leading-in analysis structure (2) comprises a built-in carrying box (5), a wind power guide column (6), an extension carrying plate (7), a laser detection irradiation lamp (8), a dispersion light plate (9), an overflowing column (10), a photosensitive reaction plate (11) and a processing circuit board (12), the inner side of the built-in carrying box (5) is fixedly connected with the overflowing column (10), and the two ends of the overflowing column (10), the top of built-in carrying case (5) is passed through screw fixedly connected with and is extended carrying board (7), extend inboard fixedly connected with laser detection lamp (8) on carrying board (7) top, the bottom welding of laser detection lamp (8) has dispersion board (9), built-in bottom fixedly connected with photosensitive reaction plate (11) and processing circuit board (12) of carrying case (5) inboard, processing circuit board (12) are located the bottom of photosensitive reaction plate (11), photosensitive reaction plate (11) and processing circuit board (12) are electric connection.
2. A dust cleaning apparatus for repairing fresco according to claim 1, wherein: the inside and outside synchronous humidifying structure (3) comprises a moisture generating tank (16), a water storage tank (17), a water pump pressurizing delivery pipe (18), a heating gasification tank (19), an electric heating warming pipe (20), a gasification delivery pipe (21) and a cooling delivery plate (22), one side of the moisture generating tank (16) is fixedly connected with a water storage tank (17), one end of the water storage tank (17) is welded with a water pump pressurization delivery pipe (18), the other end of the water pump pressurization delivery pipe (18) is welded with the heating gasification box (19), a plurality of electric heating pipes (20) are fixedly connected inside the heating gasification box (19), one side of the electric heating warming pipe (20) is connected with the cooling lead-out plate (22) through a gasification lead-out pipe (21), one side of the cooling guide-out plate (22) is welded with a drainage tube (23), and the outer side of the drainage tube (23) is provided with a plurality of outer discharge humidifying holes (24).
3. A dust cleaning apparatus for repairing fresco according to claim 1, wherein: automatic change synchronous dust removal structure of static (4) including automatic reciprocal static produce structure (25), first friction plate (26), compound carry on support frame (27), second friction plate (28) and collect hopper (29), the outside fixed connection of case (5) is carried in through screw and built-in to one side that automatic reciprocal static produced structure (25), the automatic reciprocal static produces the first friction plate (26) of the one end fixedly connected with of structure (25), the compound one side of carrying on support frame (27) welds in the outside of built-in carrying on case (5), the compound one end fixedly connected with second friction plate (28) that carries on support frame (27), the bottom welding that carries on support frame (27) is compound has collection hopper (29).
4. A dust cleaning apparatus for repairing fresco according to claim 1, wherein: the automatic reciprocating static electricity generating structure (25) comprises a matching carrying frame (30), a protection inner loading frame (31), a power positioning block (32), a motor (33), an eccentric driving disc (34), a linkage push rod (35), a matching power sliding block (36), a spring limiting column (37) and a C-shaped carrying plate (38), wherein the protection inner loading frame (31) is welded at one end of the matching carrying frame (30), the power positioning block (32) is fixedly connected to the inner side of the bottom end of the matching carrying frame (30), the motor (33) is fixedly connected to one end of the power positioning block (32) through a screw, the eccentric driving disc (34) is fixedly connected to the output end of the motor (33), the linkage push rod (35) is sleeved at one end of the eccentric driving disc (34), the matching power sliding block (36) is sleeved at the top end of the linkage push rod (35), the matching power sliding block (36) is positioned at the inner side of the matching carrying frame (30), the top and the bottom of cooperation power slider (36) all are connected with cooperation take-up frame (30) through spring spacing post (37), one side welding of cooperation power slider (36) has C type to take up board (38).
5. A dust cleaning apparatus for repairing fresco according to claim 4, wherein: one side welding of cooperation power slider (36) has the forked tail sliding block, the inboard of joining in marriage and moving carrier (30) top has been seted up and has been joined in marriage and lead the dovetail, join in marriage and lead the dovetail and be clearance fit with the forked tail sliding block.
6. A dust cleaning apparatus for repairing fresco according to claim 3, wherein: one end of the first friction plate (26) is attached to one end of the second friction plate (28), and the first friction plate (26) and the second friction plate (28) are both made of polyvinyl chloride.
7. A dust cleaning apparatus for repairing fresco according to claim 2, wherein: the electric heating tube (20) is fixedly connected with an electric heating resistance wire inside, and the electric heating resistance wire is made of iron chromium aluminum.
8. A dust cleaning apparatus for repairing fresco according to claim 1, wherein: the light-dispersing plate (9) and the overflowing column (10) are made of glass, and the type of the photosensitive reaction plate (11) is SD 3600/5310.
9. A dust cleaning apparatus for repairing fresco according to claim 1, wherein: the top of laser detection lamp (8) is fixed with the digital screen, the inside of processing circuit board (12) is loaded with signal amplification circuit, microprocessor and signal derivation module, be electric connection between microprocessor and signal amplification circuit and the signal derivation module, microprocessor's model is A80386DX16, the model of signal derivation module is H7118DTC, the digital screen is electric connection with the signal derivation module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551234.7A CN112675652B (en) | 2020-12-24 | 2020-12-24 | Dust cleaning equipment for mural repair |
| PCT/CN2021/139506 WO2022135316A1 (en) | 2020-12-24 | 2021-12-20 | Dust cleaning device for mural repairing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011551234.7A CN112675652B (en) | 2020-12-24 | 2020-12-24 | Dust cleaning equipment for mural repair |
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| CN112675652A true CN112675652A (en) | 2021-04-20 |
| CN112675652B CN112675652B (en) | 2022-05-03 |
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| WO (1) | WO2022135316A1 (en) |
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| CN112762556A (en) * | 2021-01-18 | 2021-05-07 | 重庆第二师范学院 | Interior decoration removes formaldehyde device with environment-friendly |
| WO2022135316A1 (en) * | 2020-12-24 | 2022-06-30 | 上海建为历保科技股份有限公司 | Dust cleaning device for mural repairing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116336820B (en) * | 2023-04-14 | 2024-06-25 | 江苏益辉节能环保有限公司 | Calcium carbide furnace tail gas recycling device and method |
| CN117233582B (en) * | 2023-11-13 | 2024-01-30 | 深圳市中科领创实业有限公司 | Test fixture for integrated circuit chip |
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| CN112762556A (en) * | 2021-01-18 | 2021-05-07 | 重庆第二师范学院 | Interior decoration removes formaldehyde device with environment-friendly |
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| CN112675652B (en) | 2022-05-03 |
| WO2022135316A1 (en) | 2022-06-30 |
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