CN213494847U - Raw material screening device for house construction - Google Patents
Raw material screening device for house construction Download PDFInfo
- Publication number
- CN213494847U CN213494847U CN202022076139.8U CN202022076139U CN213494847U CN 213494847 U CN213494847 U CN 213494847U CN 202022076139 U CN202022076139 U CN 202022076139U CN 213494847 U CN213494847 U CN 213494847U
- Authority
- CN
- China
- Prior art keywords
- housing
- dust
- fixedly connected
- dust collecting
- transmission belt
- 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.)
- Expired - Fee Related
Links
- 238000012216 screening Methods 0.000 title claims abstract description 57
- 239000002994 raw material Substances 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 97
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 55
- 238000004140 cleaning Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 241000883990 Flabellum Species 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model belongs to the technical field of the raw materials divides sieve technique and specifically relates to a house construction is divided sieve device with raw materials, screening efficiency is low among the prior art to, and the effect is poor, the many problem of screening process dust volume, now proposes following scheme, and it includes the housing, its characterized in that, the inside slope of housing is provided with divides the sieve device, divide the sieve device including two sets of parallel first branch screen cloth and the second branch screen cloth of placing, divide the bottom rigid coupling of sieve device have with the yielding rubber piece of the inside wall rigid coupling of housing, the utility model discloses stable in structure, easy operation has not only realized in house construction engineering to the multistage branch sieve of raw materials, the effectual continuity and the screening efficiency of having guaranteed the screening, still the effectual diffusion that reduces the dust, has guaranteed that the staff's is healthy, easily uses widely.
Description
Technical Field
The utility model relates to a raw materials divides the sieve field, especially relates to a house construction divides sieve device with raw materials.
Background
With the continuous development of the building industry, the house construction technology is mature day by day. Various raw materials used for building construction need to be processed before use, so that the raw materials meet the use standard of construction technology.
Still artifical screening is many to grit screening in the current production process, and artifical screening often is accompanied the labour with high costs, and screening efficiency is low, and screening process can only sieve out a grit, and at a large amount of dusts that screening process produced moreover, there is huge injury to staff's healthy, and for this reason, this scheme has provided a house construction and has divided sieve device with raw materials.
SUMMERY OF THE UTILITY MODEL
The utility model provides a house construction is raw materials sieve device for construction has solved the problem that screening efficiency is low among the prior art, and the effect is poor, and screening process dust volume is many.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the raw material screening device for house construction comprises a housing and is characterized in that a screening device is obliquely arranged inside the housing and comprises two groups of first screening meshes and second screening meshes which are arranged in parallel, a damping rubber block fixedly connected with the inner side wall of the housing is fixedly connected to the bottom end of the screening device, a transmission plate is fixedly connected to the top end of the screening device, a limiting rod is fixedly connected to one side, close to the housing, of the transmission plate, a clamping groove fixedly connected with the inner side wall of the housing is movably sleeved on the other side of the limiting rod, a vibrating motor is fixedly connected to the other side of the transmission plate, screen cleaning devices are arranged at the bottoms of the first screening meshes and the second screening meshes, each screen cleaning device comprises two groups of first transmission belts and second transmission belts which are arranged in parallel, the first transmission belts and the second transmission belts are symmetrical along the screening device, and the first transmission belts and the second transmission belts are of annular structures, the inner circle activity of first transmission band and second transmission band has cup jointed the driving roller that sets up along its length direction, and the inside wall swing joint of driving roller and housing, screen cloth cleaning device is still including being used for the screen cloth brush and the motor of drive driving roller to dividing the screen cloth device clearance, the both ends of screen cloth brush respectively with the outer lane rigid coupling of first transmission band and second transmission band, the outside one side at the housing is fixed to the motor, screen cloth cleaning device's below is provided with the swash plate rather than parallel, and the lateral wall of swash plate and the inside wall rigid coupling of housing, the below of swash plate is provided with dust collection device.
Preferably, the fixed feed hopper that has cup jointed in top of housing, first discharge gate, second discharge gate and third discharge gate have been seted up to one side that the motor was kept away from to the housing, and the below of first discharge gate, second discharge gate and third discharge gate all is provided with the material receiving bin, and the bottom of material receiving bin be provided with the housing lateral wall rigid coupling place the board.
Preferably, the dust collection device collects the storehouse including the dust that sets up in the inboard bottom of housing, the dust is collected the top one end in storehouse and is cup jointed the dust collecting pipe, the top of dust collecting pipe extends to the top of swash plate, and the one end that the dust collecting pipe is located the swash plate top is fixed with the sand prevention cover top, the dust is collected the one side top that the dust collecting pipe was kept away from in storehouse and is cup jointed the connecting pipe, the top rigid coupling of connecting pipe has the dust absorption motor, the dust absorption motor rigid coupling has the tuber pipe, and the other end that goes out the tuber pipe extends the housing.
Preferably, the inside wall rigid coupling of connecting pipe has the dead lever, the transmission shaft has been cup jointed in the center activity of dead lever, the top rigid coupling of transmission shaft has the flabellum, the top rigid coupling of flabellum has along the dust removal brush of flabellum length, and the top of dust removal brush be provided with the dust screen of connecting pipe inside wall rigid coupling.
Preferably, the bottom of the inner side of the dust collection bin is fixedly connected with a slide way, and a dustproof collection box is placed at the top of the slide way.
Preferably, a cleaning opening penetrating through the dust collecting bin and the housing is formed in one side of the dust collecting bin, and a bin door is hinged to the outer side of the cleaning opening.
The utility model has the advantages that:
1. the two-stage screening of the raw materials is realized through the mutual matching of the first screen dividing screen and the second screen dividing screen.
2. The bottom through dividing screen cloth and second divides screen cloth sets up the screen cloth brush, realizes the clearance to the screen cloth, guarantees that the screen cloth can not block up easily.
3. Through mutually supporting of the dust collection device that sets up in the housing bottom and the automatic clearance structure of dust screen, realize screening dust in succession and do not leak, the difficult purpose that gathers dirt of dust screen.
The utility model discloses rational in infrastructure, stable in structure, easy operation has not only realized the multistage branch sieve to the raw materials in house construction engineering, the effectual continuity and the screening efficiency of having guaranteed the screening, still the effectual diffusion that reduces the dust, guaranteed that staff's is healthy, easily uses widely.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a screening structure diagram of the present invention.
FIG. 4 is an enlarged view of the A position of the present invention
Reference numbers in the figures: 1. a housing; 2. a feed hopper; 3. a drive plate; 4. a first screening net; 5. A limiting rod; 6. a card slot; 7. a drive motor; 9. a screen brush; 10. a first conveyor belt; 11. A driving roller; 12. a vibration motor; 13. a second sub-screen; 14. a material receiving bin; 15. a first discharge port; 16. a second discharge port; 17. a third discharge port; 18. a second conveyor belt; 19. placing the plate; 20. a sloping plate; 21. a dust collection motor; 22. an air outlet pipe; 23. a dust screen; 24. a dust removal brush; 25. a fan blade; 26. a drive shaft; 27. cleaning the opening; 28. fixing the rod; 29. a connecting pipe; 30. a dust collection pipe; 31. a dust collection bin; 32. a dust collection box; 33. a slideway; 35. a bin gate; 36. a shock-absorbing rubber block; 37. and (5) jacking the sand control cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a raw material screening device for building construction, comprising a housing 1, characterized in that a feeding funnel 2 is fixedly sleeved on the top of the housing 1, a screening device is obliquely arranged in the housing 1, the screening device comprises two groups of first and second sub-screens 4 and 13 which are arranged in parallel, a damping rubber block 36 fixedly connected with the inner side wall of the housing 1 is fixedly connected with the bottom end of the screening device, a driving plate 3 is fixedly connected with the top end of the screening device, a limiting rod 5 is fixedly connected with one side of the driving plate 3 close to the housing 1, a clamping groove 6 fixedly connected with the inner side wall of the housing 1 is movably sleeved on the other side of the limiting rod 5, a vibrating motor 12 is fixedly connected with the other side of the driving plate 3, screen cleaning devices are respectively arranged at the bottoms of the first and second sub-screens 4 and 13, an inclined plate 20 parallel to the screen cleaning devices is arranged below the screen cleaning devices, and the side wall of, first discharge gate 15 has been seted up to one side that motor 34 was kept away from to housing 1, second discharge gate 16 and third discharge gate 17, and first discharge gate 15, the below of second discharge gate 16 and third discharge gate 17 all is provided with receipts feed bin 14, and the bottom of receiving feed bin 14 is provided with the board 19 of placing with housing 1 lateral wall rigid coupling, the inside that the raw materials that wait to sieve for the building entered into housing 1 from feeding leak 2, shock dynamo 12 and screening plant mutually support, carry out the second grade screening with the raw materials, the material of screening out is respectively along first screening net 4, second screening net 13 and swash plate 20 are from first discharge gate 15, second discharge gate 16, third discharge gate 17 rolls to the receipts feed bin 14 that its below set up.
The screen cloth cleaning device comprises two groups of first transmission belts 10 arranged in parallel, a second transmission belt 18, the first transmission belts 10 and the second transmission belts 18 are symmetrical along the screening device, transmission rollers 11 arranged along the length direction of the first transmission belts 10 and the second transmission belts 18 are movably sleeved on inner rings of the first transmission belts 10 and the second transmission belts 18, the transmission rollers 11 are movably connected with the inner side walls of the housing 1, the screen cloth cleaning device further comprises a screen cloth brush 9 used for cleaning the screening device and a driving motor 7 used for driving the transmission rollers 11, two ends of the screen cloth brush 9 are fixedly connected with outer rings of the first transmission belts 10 and the second transmission belts 18 respectively, the driving motor 7 is fixed on one side of the outside of the housing 1, the screen cloth brush 9 is attached to the bottom of the screen cloth, dust, gravel and sand brushes attached to the screen cloth effectively are fallen, and screening efficiency is effectively.
The dust collecting device is arranged below the inclined plate 20, the dust collecting device comprises a dust collecting bin 31 arranged at the bottom of the inner side of the housing 1, a slide 33 is fixedly connected to the bottom of the inner side of the dust collecting bin 31, a dust collecting box 32 is placed at the top of the slide 33, a dust collecting pipe 30 is sleeved at one end of the top of the dust collecting bin 31, the top of the dust collecting pipe 30 extends to the upper side of the inclined plate 20, a sand-proof cover top 37 is fixed at one end of the dust collecting pipe 30 above the inclined plate 20, the sand-proof cover top 37 effectively prevents sand from entering the dust collecting bin 31, a connecting pipe 29 is sleeved at the top end of one side of the dust collecting bin 31 far away from the dust collecting pipe 30, a fixing rod 28 is fixedly connected to the inner side wall of the connecting pipe 29, a transmission shaft 26 is movably sleeved at the center of the fixing rod 28, a fan blade 25, and the top of dust removal brush 24 is provided with the dust screen 23 with the inside wall rigid coupling of connecting pipe 29, set up fixed dust removal brush 24 on flabellum 25 and the flabellum in connecting pipe 29 inboard, clear up the dust that gathers on the dust screen 23 fast, the cleaning performance of dust has been guaranteed, the top rigid coupling of connecting pipe 29 has dust absorption motor 21, dust absorption motor 21 rigid coupling has air-out pipe 22, and the other end that goes out air-out pipe 22 extends housing 1 dust and collects storehouse 31 one side and set up the clearance mouth 27 that runs through dust collection storehouse 31 and housing 1, and the outside of clearance mouth 27 articulates there is bin gate 35, the effectual dust that will sieve the process and produce of dust collection device is collected, the raise dust that produces in the production process has been reduced.
The working principle is as follows: when raw materials are screened, a power supply of a vibration motor 12 is turned on, the vibration motor 12 drives a transmission plate 3 to vibrate, a first screening net 4 and a second screening net 13 fixedly connected with a rotating plate 3 vibrate, the transmission plate 3 and a housing 1 are movably connected with the inner side wall of the housing 1 through a transmission rod 5, vibration of the housing 1 is effectively reduced through a damping rubber block 36 arranged on the screening net and the housing 1, power supplies of two driving motors 7 are connected, a screen cleaning device starts to work, the driving motors 7 drive transmission rollers 11 to operate, meanwhile, an annular first transmission belt 10 and an annular second transmission belt 18 sleeved with the transmission rollers 11 move, the first transmission belt 10 and the second transmission belt 18 drive a screen brush 9 to move along the bottom of the screen to be attached to the first screening net, the screen cleaning device cleans the bottoms of the first screening net 4 and the second screening net 13 to prevent the screening net from being blocked, raw materials to be screened are added into the housing 1 from a feeding hopper 2, the raw materials are sieved by a sieving device and fall to a receiving bin 14 which is correspondingly arranged from the first discharge port 15, the second discharge port 16 and the third discharge port 17 respectively, a large amount of dust is generated in the sieving process, a dust collection motor 21 is turned on, the outlet air of the dust collection motor 21 is discharged out of the housing 1 along an air outlet pipe 22, an exhaust fan 21 sucks air, a fan 25 arranged on a connecting pipe 29 rotates, the fan drives a dust collection brush 24 fixedly arranged on a fan blade to continuously remove dust on the dust screen 23, the dust screen 23 is ensured not to be prevented, the generated dust enters a dust collection bin 31 through a dust collection pipe 30, the effectual improvement of box 32 is collected to dust to dustproof collection storehouse 31 in the inside dust that sets up in dust collection storehouse 31, sand prevention cover top 18 that sets up at dust collection pipe 30 top, other solids that have effectively guaranteed out the dust can not enter into dust collection storehouse 31, screening work finishes or when needing to collect storehouse 31 and clear up, only need to close vibrating motor 12, the power of motor 34 and dust absorption motor 21, open door 35, collect box 32 along the slide 33 with the dust and pull out from clearance mouth 27, clear up the dust in the dust collection box of preventing, collect box 32 with the dust after the clearance is accomplished and impel dust collection storehouse 31 in the other direction again, close door 35, can.
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 or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed 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 limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a house construction divides sieve device with raw materials, includes housing (1), its characterized in that, the inside slope of housing (1) is provided with divides the sieve device, divide the sieve device to divide sieve net (4) and second branch screen cloth (13) including two sets of parallel placement, divide the bottom rigid coupling of sieve device to have with the yielding rubber piece (36) of the inside wall rigid coupling of housing (1), the top rigid coupling of sieve device has driving plate (3), one side rigid coupling that driving plate (3) are close to housing (1) has gag lever post (5), draw-in groove (6) with the inside wall rigid coupling of housing (1) have been cup jointed in the opposite side activity of gag lever post (5), the opposite side rigid coupling of driving plate (3) has vibrating motor (12), the bottom of first sieve net (4) and second branch screen cloth (13) all is provided with screen cloth cleaning device, the screen cleaning device comprises a first transmission belt (10) and a second transmission belt (18) which are arranged in parallel, the first transmission belt (10) and the second transmission belt (18) are symmetrical along a screening device, the first transmission belt (10) and the second transmission belt (18) are of an annular structure, a transmission roller (11) arranged along the length direction of the first transmission belt (10) and the second transmission belt (18) is movably sleeved with an inner ring of the first transmission belt (10) and the second transmission belt (18), the transmission roller (11) is movably connected with the inner side wall of a housing (1), the screen cleaning device further comprises a screen brush (9) used for cleaning the screening device and a driving motor (7) used for driving the transmission roller (11), two ends of the screen brush (9) are fixedly connected with the outer rings of the first transmission belt (10) and the second transmission belt (18) respectively, the driving motor (7) is fixed on one side of the outer portion of the housing (1), the lower part of the screen cleaning device is provided with an inclined plate (20) parallel to the screen cleaning device, the side wall of the inclined plate (20) is fixedly connected with the inner side wall of the housing (1), and a dust collecting device is arranged below the inclined plate (20).
2. The raw material screening device for house construction according to claim 1, wherein a feeding hopper (2) is fixedly sleeved at the top of the housing (1), a first discharge port (15), a second discharge port (16) and a third discharge port (17) are formed in the outer portion of one side, far away from the vibration motor (12), of the housing (1), a material receiving bin (14) is arranged below the first discharge port (15), the second discharge port (16) and the third discharge port (17), and a placing plate (19) fixedly connected with the outer side wall of the housing (1) is arranged at the bottom of the material receiving bin (14).
3. The raw material screening device for house construction according to claim 1, wherein the dust collecting device comprises a dust collecting bin (31) arranged at the bottom of the inner side of the housing (1), the dust collecting tube (30) is sleeved at one end of the top of the dust collecting bin (31), the top of the dust collecting tube (30) extends to the upper side of the inclined plate (20), a sand prevention cover top (37) is fixed at one end of the dust collecting tube (30) above the inclined plate (20), a connecting tube (29) is sleeved at the top end of one side, far away from the dust collecting tube (30), of the dust collecting bin (31), a dust collecting motor (21) is fixedly connected to the top end of the connecting tube (29), an air outlet tube (22) is fixedly connected to the dust collecting motor (21), and the other end of the air outlet tube (22) extends out of the housing (1).
4. The raw material screening device for house construction according to claim 3, wherein a fixing rod (28) is fixedly connected to the inner side wall of the connecting pipe (29), a transmission shaft (26) is movably sleeved at the center of the fixing rod (28), fan blades (25) are fixedly connected to the top of the transmission shaft (26), a dust removing brush (24) along the length of the fan blades (25) is fixedly connected to the top of the fan blades (25), and a dust screen (23) fixedly connected to the inner side wall of the connecting pipe (29) is arranged above the dust removing brush (24).
5. The raw material screening device for house construction according to claim 3, wherein a slideway (33) is fixedly connected to the bottom of the inner side of the dust collection bin (31), and a dust collection box (32) is placed at the top of the slideway (33).
6. The raw material screening device for house construction according to claim 3, wherein a cleaning opening (27) penetrating through the dust collection bin (31) and the housing (1) is formed in one side of the dust collection bin (31), and a bin door (35) is hinged to the outer side of the cleaning opening (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076139.8U CN213494847U (en) | 2020-09-21 | 2020-09-21 | Raw material screening device for house construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076139.8U CN213494847U (en) | 2020-09-21 | 2020-09-21 | Raw material screening device for house construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213494847U true CN213494847U (en) | 2021-06-22 |
Family
ID=76448912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022076139.8U Expired - Fee Related CN213494847U (en) | 2020-09-21 | 2020-09-21 | Raw material screening device for house construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213494847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787075A (en) * | 2021-08-03 | 2021-12-14 | 合肥建设装饰(集团)有限责任公司 | A kind of construction dust suppression equipment |
-
2020
- 2020-09-21 CN CN202022076139.8U patent/CN213494847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787075A (en) * | 2021-08-03 | 2021-12-14 | 合肥建设装饰(集团)有限责任公司 | A kind of construction dust suppression equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206996696U (en) | A kind of construction waste crushing processing transport magnetic plant | |
| CN212998882U (en) | Dust collector is used in concrete processing | |
| CN108855928A (en) | A kind of bio-pharmaceuticals screening installation | |
| CN113441213A (en) | Coal mining subsidence area gangue filling is with smashing conveying equipment | |
| CN113069847A (en) | Building site dust collector | |
| CN202527371U (en) | Movable grain cleaning working tower | |
| CN213494847U (en) | Raw material screening device for house construction | |
| CN209985737U (en) | A sieve reason device for rice finish machining | |
| CN210357955U (en) | Straw dust collecting equipment | |
| CN212759592U (en) | A sieve separator that shakes soon for aluminium hydroxide | |
| CN211113379U (en) | Dregs road surface cleaning device for green building construction | |
| CN217963421U (en) | Multi-level grading rolling cage screen | |
| CN209985791U (en) | Ore sorting device | |
| CN217748006U (en) | Mine quarrying crushing and screening dust remover | |
| CN208493587U (en) | A kind of zinc oxide production dust grading plant | |
| CN210647228U (en) | Quick screening plant of wet sand | |
| CN209829246U (en) | Dust recovery device for calcium carbide production | |
| CN112317044A (en) | A construction environmental protection waste screening and separation device | |
| CN209109358U (en) | Has effects that laborsaving, dedusting calcium carbonate crushing plant | |
| CN210248305U (en) | Vegetable cleaning system's garbage collection device | |
| CN209109360U (en) | Calcium carbonate screening device with waste water circulatory function | |
| CN220532231U (en) | Screening and dust removing device | |
| CN222287407U (en) | Waste treatment device | |
| CN222428587U (en) | Stone removing machine with dust removing function | |
| CN220909636U (en) | Drilling mud purifying treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |