CN113069847B - Building site dust collector - Google Patents
Building site dust collector Download PDFInfo
- Publication number
- CN113069847B CN113069847B CN202110453991.9A CN202110453991A CN113069847B CN 113069847 B CN113069847 B CN 113069847B CN 202110453991 A CN202110453991 A CN 202110453991A CN 113069847 B CN113069847 B CN 113069847B
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- Prior art keywords
- dust
- fixedly connected
- pipe
- wall
- cylindrical block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
Abstract
The invention discloses a dust removal device for a construction site, and belongs to the field of building dust removal. A building site dust collector, includes the base, still includes: the supporting upright post is fixedly connected to the upper end of the base; the dust collection cylinder is internally and rotatably provided with a filter plate, is connected with the upper end of the supporting upright post through an autorotation mechanism and is used for absorbing dust in air, wherein the inner wall of the dust collection cylinder is fixedly provided with a motor, and the output end of the motor is fixedly provided with an air suction fan blade; the recycling tank is arranged on the side wall of the supporting upright post, is connected with the dust suction cylinder through a recycling mechanism and is used for recycling dust on the outer wall of the filter plate; the building site dust removal device disclosed by the invention can be used for removing dust on a building site, and also can realize the self-cleaning function of the filter plate, so that the use is more convenient and labor-saving, and the waste of human resources is reduced.
Description
Technical Field
The invention relates to the technical field of building dust removal, in particular to a dust removal device for a building site.
Background
The construction site is a site where civil engineering is carried out in developing construction projects, and the range of the construction site is often closed by enclosing plates, wire nets or enclosing walls so as to limit the access of personnel, materials, machinery and vehicles. General dust is great in the building site, drifts about in order to reduce the dust, generally can keep apart through the dust screen around the building, can alleviate the dust pollution's the condition.
But the dust screen is after using a period of time, and the surface can accumulate a lot of dust to the effect that the dust was kept apart has been reduced, and the area of dust screen is great, and artifical regular cleaning dust screen work load is big, and can waste more manpower and materials.
Disclosure of Invention
The invention aims to solve the problems that a dust screen in the prior art is poor in dust prevention effect after being used for a long time and is not easy to clean manually, and provides a dust removal device for a construction site.
In order to achieve the purpose, the invention adopts the following technical scheme:
a building site dust collector, includes the base, still includes: the supporting upright post is fixedly connected to the upper end of the base; the dust collection cylinder is internally and rotatably provided with a filter plate, is connected with the upper end of the supporting upright post through an autorotation mechanism and is used for absorbing dust in air, wherein the inner wall of the dust collection cylinder is fixedly provided with a motor, and the output end of the motor is fixedly provided with an air suction fan blade; the recycling tank arranged on the side wall of the supporting upright post is connected with the dust suction cylinder through a recycling mechanism and is used for recycling dust on the outer wall of the filter plate.
In order to keep the dust collection cylinder consistent with the wind direction, preferably, the rotation mechanism comprises a cylindrical block fixedly connected to the lower end of the dust collection cylinder, a circular groove corresponding to the cylindrical block is formed in the upper end of the supporting upright column, the outer wall of the cylindrical block is rotatably connected to the inner wall of the circular groove, and a wind following plate perpendicular to the cylindrical block is fixedly connected to the side wall of the upper end of the dust collection cylinder.
In order to make the filter have self-cleaning ability, it is further, retrieve the mechanism and include the horizontal pipe of rotating the connection through the rotary trough, the outer wall of cylinder piece is equipped with the mechanism of blowing of being connected with horizontal union coupling, the left end fixedly connected with of horizontal pipe is to the standpipe that filter plate surface is parallel, the lateral wall of standpipe is equipped with the soot blowing groove that corresponds with the filter lateral wall, the inside of cylinder piece is equipped with the device chamber, the interior bottom fixedly connected with of suction drum extends to the tubule of device intracavity, be equipped with the thick pipe that extends to the accumulator in the support post, the lower extreme of tubule extends to in the thick pipe, the lateral wall fixedly connected with of filter has the drive flabellum of a plurality of circumference distributions.
In order to enable the vertical pipe to blow air, the air blowing mechanism comprises an annular housing fixedly connected to the outer wall of the cylindrical block, a plurality of circumferentially distributed telescopic air bags are fixedly mounted on the inner wall of the annular housing, an air suction pipe and an air exhaust pipe are arranged on the side wall of each telescopic air bag, a pressing block matched with each telescopic air bag is fixedly connected to the upper end of the supporting upright column through a support, an annular pipe is fixedly connected to the outer wall of the cylindrical block, the tail ends of the air exhaust pipes are fixedly connected with the annular pipe, the tail end of each transverse pipe is fixedly connected with a connecting pipe extending to the lower end of the dust suction cylinder, and the tail end of each connecting pipe is fixedly connected with the annular pipe and communicated with the annular pipe.
In order to make thick pipe arrange the ash more smoothly, further, be equipped with the spout in the support post, thick pipe sliding connection is in the spout, the outer wall fixedly connected with annular slab of thick pipe, through reset spring elastic connection between annular slab and the interior bottom of circular slot, the lower cambered surface lug that a plurality of circumferences of upper end fixedly connected with of annular slab distribute, the lower extreme fixedly connected with of cylinder piece and the last cambered surface lug that a plurality of lower cambered surface lugs correspond.
In order to clean the recovered dust conveniently, a storage cylinder corresponding to the lower end of the thick pipe is arranged in the recovery tank, and a cover plate is rotatably arranged in an inlet of the recovery tank.
In order to make the whole device move more conveniently, preferably, the lower end of the base is fixedly provided with a movable roller, and the movable roller is a universal wheel with a braking function.
Preferably, the side wall of the pressing block is provided with a pulley engaged with the outer wall of the telescopic airbag.
In order to enable the elastic resetting of the telescopic air bag to be quicker, the telescopic air bag is further made of rubber.
In order to prevent the telescopic air bag from being blocked by dust, the lower end of the dust suction cylinder is fixedly connected with a pipe body communicated with the dust suction cylinder, and the plurality of air suction pipes are fixedly connected and communicated with the pipe body through hoses.
Compared with the prior art, the invention provides a dust removal device for a construction site, which has the following beneficial effects:
1. this building site dust collector can absorb the filtration to building site's dust through a suction tube, and the dust collection efficiency of active dust absorption is higher to a suction tube can also be according to the direction of wind direction adjustment dust absorption mouth, thereby has promoted the dust collection efficiency of a suction tube.
2. This building site dust collector can clear up the dust on filter plate surface and retrieve the accumulator through the standpipe with blow the grey groove to realize the self-cleaning function of filter, guaranteed the dust collection efficiency of a suction cleaner, greatly reduced the artifical cost of driving the dust.
3. This building site dust collector can drive annular plate and thick pipe through pivoted cylinder piece and shake from top to bottom to make the difficult jam of thick pipe, arrange grey efficiency and improve greatly, the frequency of the maintenance that significantly reduces.
Drawings
FIG. 1 is a schematic axial view of a dust removing apparatus for a construction site according to the present invention;
FIG. 2 is a schematic sectional structure view of a dust removing device for a construction site according to the present invention;
FIG. 3 is a schematic structural diagram of a dust removing device in a construction site shown in FIG. 2;
FIG. 4 is a schematic structural diagram at B in FIG. 2 of a dust removing apparatus for a construction site according to the present invention;
FIG. 5 is a schematic structural diagram at C in FIG. 2 of a dust removing apparatus for a construction site according to the present invention;
FIG. 6 is a schematic structural view of a dust removing apparatus for a construction site shown in FIG. 2D according to the present invention;
fig. 7 is a right-side structural schematic diagram of a filter plate of a dust removing device for a construction site according to the present invention.
In the figure: 1. a base; 2. a dust suction cylinder; 3. supporting the upright post; 4. a cylindrical block; 5. a motor; 6. an air intake fan blade; 7. a filter plate; 8. a wind-following plate; 9. a transverse tube; 10. a recovery tank; 11. A soot blowing groove; 12. a thin tube; 13. a device cavity; 14. a thick pipe; 15. a chute; 16. an annular housing; 17. a telescopic air bag; 18. a support; 19. a pressing block; 20. an air intake duct; 21. an exhaust pipe; 22. a connecting pipe; 23. an annular tube; 24. a return spring; 25. a circular groove; 26. a lower arc surface bump; 27. an upper arc surface bump; 28. a pulley; 29. a pipe body; 30. a hose; 31. moving the roller; 32. a cover plate; 33. driving the fan blades; 34. a vertical tube; 35. a storage cylinder; 36. rotating the groove; 37. an annular 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-7, a dust removing apparatus for construction sites comprises a base 1, and further comprises: the supporting upright column 3 is fixedly connected to the upper end of the base 1; the dust collection cylinder 2 is internally and rotatably provided with a filter plate 7, is connected with the upper end of the supporting upright post 3 through an autorotation mechanism and is used for absorbing dust in the air, wherein the inner wall of the dust collection cylinder 2 is fixedly provided with a motor 5, and the output end of the motor 5 is fixedly provided with an air suction fan blade 6; the setting is at the accumulator 10 of 3 lateral walls of support post, be connected with suction drum 2 through retrieving the mechanism, be used for retrieving the dust of 7 outer walls of filter, motor 5 drives the flabellum 6 rotation of breathing in, suction drum 2 is breathing in the air under the effect of flabellum 6, and filter the dust in the air through filter 7, the dust collection efficiency of active dust absorption is higher, rotation mechanism can drive suction drum 2 and rotate along with the wind direction, guarantee suction drum 2's dust absorption efficiency, it then can clear up the dust of 7 lateral walls of filter and retrieve to retrieve the mechanism, make its convenient more laborsaving that uses.
Furthermore, the lower end of the base 1 is fixedly provided with a movable roller 31, and the movable roller 31 is a universal wheel with a braking function, so that the whole device is more convenient to move.
Example 2
Referring to fig. 1-3, substantially the same as in example 1, further: rotation mechanism includes cylindrical block 4 of fixed connection at the 2 lower extremes of suction tube, the upper end of support post 3 is equipped with the circular slot 25 that corresponds with cylindrical block 4, the inner wall at circular slot 25 is connected in the outer wall rotation of cylindrical block 4, the upper end lateral wall fixedly connected with of suction tube 2 is rather than vertically following wind plate 8, when the wind-force, following wind plate 8 can drive suction tube 2 under the wind-force effect and rotate, make suction tube 2's the end of breathing in and wind direction always, guarantee the efficiency of breathing in.
Example 3
Referring to fig. 2, 3, 6 and 7, basically the same as in embodiment 1, further: the recovery mechanism includes the horizontal pipe 9 of rotating the connection through the rotary trough 36, the outer wall of cylinder piece 4 is equipped with the mechanism of blowing of being connected with horizontal pipe 9, the left end fixedly connected with of horizontal pipe 9 is to the standpipe 34 of filter 7 parallel surface, the lateral wall of standpipe 34 is equipped with the soot blowing groove 11 that corresponds with the filter 7 lateral wall, the inside of cylinder piece 4 is equipped with device chamber 13, the interior bottom fixedly connected with of suction tube 2 extends to the tubule 12 in device chamber 13, be equipped with the thick pipe 14 that extends to in the accumulator 10 in the support post 3, the lower extreme of tubule 12 extends to in the thick pipe 14, the lateral wall fixedly connected with of filter 7 has the drive flabellum 33 of a plurality of circumference distributions, the mechanism of blowing blows gas to horizontal pipe 9, then blow to the surface of filter 7 from standpipe 34, thereby blow into tubule 12 with filter 7 surface filtration through the soot blowing groove 11, then retrieve in accumulator 10 through thick pipe 14, and filter 7 can rotate through drive flabellum 33 under the suction effect of suction tube 2, thereby make standpipe 34 carry out more comprehensive dust to filter 7, thereby realize the soot blowing function more comprehensive, the convenient self-cleaning function of filter 7.
Furthermore, a storage cylinder 35 corresponding to the lower end of the thick pipe 14 is arranged in the recovery tank 10, a cover plate 32 is rotatably installed in an inlet of the recovery tank 10, the storage cylinder 35 in the recovery tank 10 can recover dust discharged from the thick pipe 14, and when the recovered dust needs to be cleaned, the storage cylinder 35 can be taken out and replaced.
Example 4
Referring to fig. 3, 4 and 6, basically the same as embodiment 1, further: the blowing mechanism comprises an annular housing 16 fixedly connected to the outer wall of the cylindrical block 4, a plurality of telescopic air bags 17 distributed circumferentially are fixedly mounted on the inner wall of the annular housing 16, air suction pipes 20 and air exhaust pipes 21 are arranged on the side walls of the telescopic air bags 17, the upper end of the support upright 3 is fixedly connected with a pressing block 19 matched with the telescopic air bags 17 through a support 18, an annular pipe 23 is fixedly connected to the outer wall of the cylindrical block 4, the tail ends of the air exhaust pipes 21 are fixedly connected with the annular pipe 23, the tail end of the transverse pipe 9 is fixedly connected with a connecting pipe 22 extending to the lower end of the dust suction cylinder 2, the tail end of the connecting pipe 22 is fixedly connected and communicated with the annular pipe 23, when the dust suction cylinder 2 rotates due to wind power, the dust suction cylinder 2 can drive the annular housing 16 to rotate, the pressing blocks 19 on the side walls of the support 18 can press one by one, each telescopic air bag 17 can exhaust through the air exhaust pipes 21 when the telescopic air bags 17 are pressed, and can be conveyed into the transverse pipe 9 through the annular pipe 23 and the connecting pipe 22.
Furthermore, the side wall of the pressing block 19 is provided with a pulley 28 which is matched with the outer wall of the telescopic air bag 17, and the pulley 28 can reduce the friction force between the pressing block 19 and the telescopic air bag 17, thereby prolonging the service life of the telescopic air bag 17 and the pressing block 19.
Furthermore, the material of the telescopic air bag 17 is rubber, and the resilience of the telescopic air bag 17 made of rubber is better.
Furthermore, the lower end of the dust suction cylinder 2 is fixedly connected with a pipe body 29 communicated with the dust suction cylinder 2, the plurality of air suction pipes 20 are fixedly connected and communicated with the pipe body 29 through hoses 30, and when the air suction pipes 20 suck air filtered in the dust suction cylinder 2, the dust in the air is placed to block the telescopic air bag 17.
Example 5
Referring to fig. 5, substantially the same as in embodiment 1, further: be equipped with spout 15 in the support post 3, thick pipe 14 sliding connection is in spout 15, the outer wall fixedly connected with annular plate 37 of thick pipe 14, through reset spring 24 elastic connection between annular plate 37 and the interior bottom of circular slot 25, the lower cambered surface lug 26 that a plurality of circumferences of upper end fixedly connected with of annular plate 37 distribute, the lower extreme fixedly connected with of cylinder piece 4 and the last cambered surface lug 27 that a plurality of cambered surface lugs 26 correspond down, when suction tube 2 rotates, suction tube 2 can drive cylinder piece 4 and rotate, cylinder piece 4 then can drive the last cambered surface lug 27 of lower extreme and slide in the upper end of annular plate 37, when last cambered surface lug 27 and lower cambered surface lug 26 contact, annular plate 37 then can the lapse, when last cambered surface lug 27 and lower cambered surface lug 26 separation, annular plate 37 then can upwards slide under reset spring 24's effect, with this reciprocal, annular plate 37 can drive thick pipe 14 and shake from top to bottom, thereby make the dust in thick pipe 14 difficult jam inside, arrange the ash more smoothly.
The working principle is as follows: in the invention, when in use, the motor 5 drives the air suction fan blades 6 to rotate, the dust suction cylinder 2 sucks air under the action of the air suction fan blades 6 and filters dust in the air through the filter plate 7, the dust removal efficiency of active dust suction is higher, when wind blows, the wind following plate 8 drives the dust suction cylinder 2 to rotate under the action of wind power, so that the air suction end of the dust suction cylinder 2 is aligned with the wind direction, the air suction efficiency is ensured, when the dust suction cylinder 2 rotates due to wind power, the dust suction cylinder 2 drives the annular housing 16 to synchronously rotate, when the annular housing 16 rotates, the pressing blocks 19 on the side wall of the support 18 are pressed one by one, each telescopic air bag 17 exhausts air through the exhaust pipe 21 and is conveyed into the transverse pipe 9 through the annular pipe 23 and the connecting pipe 22 and then blows from the vertical pipe 34 to the surface of the filter plate 7, so that the dust filtered on the surface of the filter plate 7 is blown into the thin pipe 12 through the dust blowing groove 11, then, the dust is recovered into the recycling groove 10 through the thick pipe 14, and the filter plate 7 can rotate under the suction effect of the dust cylinder 2 through the driving fan blade 33, so that the vertical pipe 34 can more comprehensively blow dust to the filter plate 7, thereby realizing the self-cleaning function of the filter plate 7, the use is more convenient, when the pressing block 19 is separated from the telescopic air bag 17, the telescopic air bag 17 can elastically reset and suck air through the air suction pipe 20, when the dust cylinder 2 rotates, the dust cylinder 2 can drive the cylindrical block 4 to rotate, the cylindrical block 4 can drive the upper cambered surface convex block 27 at the lower end to slide at the upper end of the annular plate 37, when the upper cambered surface convex block 27 is contacted with the lower cambered surface convex block 26, the annular plate 37 can slide downwards, when the upper cambered surface convex block 27 is separated from the lower cambered surface convex block 26, the annular plate 37 can slide upwards under the action of the reset spring 24 to reset, with this reciprocal, annular plate 37 can drive thick pipe 14 and shake from top to bottom to make the difficult jam of dust in the thick pipe 14 inside, arrange the ash more smooth and easy, and the storage cylinder 35 in the accumulator 10 can be retrieved thick pipe 14 exhaust dust, when the dust of retrieving needs to be cleared up, it can to take out the change with storage cylinder 35.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a building site dust collector, includes base (1), its characterized in that still includes:
the supporting upright post (3) is fixedly connected to the upper end of the base (1);
a dust suction cylinder (2) with a filter plate (7) rotatably arranged inside is connected with the upper end of the supporting upright post (3) through a self-rotating mechanism and is used for sucking dust in the air,
the inner wall of the dust collection cylinder (2) is fixedly provided with a motor (5), and the output end of the motor (5) is fixedly provided with an air suction fan blade (6);
the recycling tank (10) is arranged on the side wall of the supporting upright post (3) and is connected with the dust suction cylinder (2) through a recycling mechanism to recycle dust on the outer wall of the filter plate (7);
the autorotation mechanism comprises a cylindrical block (4) fixedly connected to the lower end of the dust suction cylinder (2), a circular groove (25) corresponding to the cylindrical block (4) is formed in the upper end of the supporting upright post (3), the outer wall of the cylindrical block (4) is rotatably connected to the inner wall of the circular groove (25), and a wind-following plate (8) perpendicular to the cylindrical block is fixedly connected to the side wall of the upper end of the dust suction cylinder (2);
the recycling mechanism comprises a transverse pipe (9) which is rotatably connected through a rotary groove (36), the outer wall of the cylindrical block (4) is provided with a blowing mechanism connected with the transverse pipe (9), the left end of the transverse pipe (9) is fixedly connected with a vertical pipe (34) which is parallel to the surface of the filter plate (7), the side wall of the vertical pipe (34) is provided with a soot blowing groove (11) corresponding to the side wall of the filter plate (7), the inside of the cylindrical block (4) is provided with a device cavity (13), the inner bottom of the dust suction cylinder (2) is fixedly connected with a thin pipe (12) which extends into the device cavity (13), the inside of the supporting upright column (3) is provided with a thick pipe (14) which extends into the recycling groove (10), the lower end of the thin pipe (12) extends into the thick pipe (14), and the side wall of the filter plate (7) is fixedly connected with a plurality of driving fan blades (33) which are distributed circumferentially;
the air blowing mechanism comprises an annular housing (16) fixedly connected to the outer wall of the cylindrical block (4), a plurality of telescopic air bags (17) distributed circumferentially are fixedly mounted on the inner wall of the annular housing (16), the side walls of the telescopic air bags (17) are provided with air suction pipes (20) and air exhaust pipes (21), the upper end of the supporting upright (3) is fixedly connected with pressing blocks (19) matched with the telescopic air bags (17) through a support (18), the outer wall of the cylindrical block (4) is fixedly connected with a ring pipe (23) and a plurality of the tail ends of the air exhaust pipes (21) are fixedly connected with the ring pipe (23), the tail end of the transverse pipe (9) is fixedly connected with a connecting pipe (22) extending to the lower end of the dust suction barrel (2), and the tail ends of the connecting pipe (22) are fixedly connected with the ring pipe (23) and communicated with each other.
2. The building site dust collector according to claim 1, wherein a sliding groove (15) is formed in the support column (3), the thick pipe (14) is slidably connected in the sliding groove (15), an annular plate (37) is fixedly connected to the outer wall of the thick pipe (14), the annular plate (37) is elastically connected with the inner bottom of the circular groove (25) through a return spring (24), a plurality of lower arc-shaped convex blocks (26) distributed circumferentially are fixedly connected to the upper end of the annular plate (37), and an upper arc-shaped convex block (27) corresponding to the lower arc-shaped convex blocks (26) is fixedly connected to the lower end of the cylindrical block (4).
3. A dust-removing apparatus for construction sites according to claim 1, wherein a storage cylinder (35) corresponding to the lower end of the raw pipe (14) is provided in the recovery tank (10), and a cover plate (32) is rotatably installed in the inlet of the recovery tank (10).
4. A dust removing device for construction site according to claim 1, characterized in that the lower end of the base (1) is fixedly provided with a movable roller (31), and the movable roller (31) is a universal wheel with brake function.
5. A building site dust removing device according to claim 1, characterized in that the side wall of the pressing block (19) is provided with a pulley (28) engaged with the outer wall of the telescopic air bag (17).
6. A building site dust collector as claimed in claim 1, wherein the telescopic air bag (17) is made of rubber.
7. A dust removing device for construction site as claimed in claim 1, wherein the lower end of the dust suction cylinder (2) is fixedly connected with a pipe body (29) communicated therewith, and the plurality of the air suction pipes (20) are fixedly connected and communicated with the pipe body (29) through a hose (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453991.9A CN113069847B (en) | 2021-04-26 | 2021-04-26 | Building site dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453991.9A CN113069847B (en) | 2021-04-26 | 2021-04-26 | Building site dust collector |
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| Publication Number | Publication Date |
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| CN113069847A CN113069847A (en) | 2021-07-06 |
| CN113069847B true CN113069847B (en) | 2022-10-25 |
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| CN202110453991.9A Active CN113069847B (en) | 2021-04-26 | 2021-04-26 | Building site dust collector |
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| CN113897869B (en) * | 2021-10-15 | 2023-11-28 | 中铁六局集团路桥建设有限公司 | Attached cradle pedestrian passageway |
| CN114029308B (en) * | 2021-10-20 | 2022-09-13 | 绍兴文理学院元培学院 | Dust catcher for building engineering |
| CN113981871B (en) * | 2021-11-04 | 2024-01-30 | 四川电力设计咨询有限责任公司 | Road dust absorbing device for energy-saving and environment-friendly building civil engineering |
| CN114719621B (en) * | 2022-04-02 | 2023-01-06 | 徐州瑞欧达机械科技有限公司 | Furnace body flue gas purification device and purification method for pottery |
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