A ceramic processing wastewater purification device

By introducing the design of extrusion diversion components and driving mechanisms into the ceramic processing sewage purification device, the problems of low purification efficiency and difficult maintenance of the existing device under low pressure are solved, achieving efficient sewage purification and reducing costs and Failure rate.

CN118993209BActive Publication Date: 2025-01-24SHANDONG DAJUN NEW MATERIAL TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411487759.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-01-24
Estimated Expiration
2044-10-24

AI Technical Summary

Technical Problem

The existing ceramic processing sewage purification device has low permeability and requires a high-pressure pump for delivery, resulting in high cost and difficult maintenance.

Method used

A ceramic processing sewage purification device is designed, which includes a purification chamber and a permeation chamber. The driving mechanism drives the extrusion diversion assembly to squeeze the permeation layer to ensure that the purified water is discharged directly and reduces the power of external pumping equipment. need.

Benefits of technology

The extrusion process reduces the power demand for external high-pressure pumps, reduces maintenance costs and failure rates, and at the same time improves the efficiency of infiltration purification.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118993209B_ABST
    Figure CN118993209B_ABST
Patent Text Reader

Abstract

The present invention provides a ceramic processing wastewater purification device, which relates to the technical field of wastewater treatment. The purification device body comprises a purification bin, an infiltration bin, a driving mechanism and an extrusion guide component. The purification bin and the infiltration bin are integrally formed, a water injection pipe is inserted at the rear end of the purification bin, a telescopic hole is opened at the front end of the purification bin, a partition and an inner convex plate are welded inside the purification bin, a plurality of independent infiltration units are embedded on the inner side of the inner convex plate, and each independent infiltration unit is stacked on each other, and a driving mechanism is sleeved on the outer side of the purification bin and the infiltration bin. The present invention is provided with a purification bin and an infiltration bin, and the driving mechanism drives the extrusion guide component at the bottom to extrude each infiltration layer from the bottom of the infiltration bin after operation, and cooperates with the baffle structure to ensure that the purified water inside the infiltration layer can be directly discharged, thereby reducing the power demand for external pumping equipment and being able to guide and collect the water flow.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a ceramic processing wastewater purification device. Background Art

[0002] The wastewater generated during ceramic processing mainly comes from raw material preparation, glaze preparation process and equipment and ground washing water. These wastewaters contain a large amount of suspended matter, oil pollution and chemical substances. If they are not properly treated, they will have a serious impact on the environment and human health. Treating this part of wastewater can effectively protect the environment and human health, prevent sewage from clogging drainage pipes and silting up rivers, and avoid harm to the environment and human body.

[0003] In the prior art, the purification device for ceramic processing wastewater can adopt the osmosis method, but this solution needs to provide a large water pressure to ensure that the wastewater can seep out from the inside of the permeation layer. Therefore, under low pressure conditions, the osmosis purification efficiency will be low, or even infiltration will be impossible. At the same time, it is also necessary to transport the wastewater through an external high-pressure pump. This process has a high power demand on the pump body, resulting in a high purification cost and a high difficulty in subsequent maintenance and repair. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a ceramic processing wastewater purification device to solve the problems raised in the above-mentioned background technology. The present invention is provided with a purification chamber and a permeation chamber, and the driving mechanism drives the extrusion guide component at the bottom to extrude each permeation layer from the bottom of the permeation chamber, and cooperates with the baffle structure to ensure that the purified water inside the permeation layer can be directly discharged, thereby reducing the power demand for external pumping equipment and being able to guide the water flow.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a ceramic processing wastewater purification device, including a purification device body, the purification device body including a purification chamber, a permeation chamber, a driving mechanism and an extrusion guide assembly, the purification chamber and the permeation chamber are integrally formed, a water injection pipe is inserted at the rear end of the purification chamber, a telescopic hole is opened at the front end of the purification chamber, a partition and an inner convex plate are welded inside the purification chamber, a plurality of independent permeation units are embedded on the inner side of the inner convex plate, and each independent permeation unit is stacked on each other, a driving mechanism is sleeved on the outer side of the purification chamber and the permeation chamber, a lower hanging plate is integrally formed at the bottom of the driving mechanism, an extrusion guide assembly is inserted on the inner side of the lower hanging plate, and the top of the extrusion guide assembly is against the surface of the lowest independent permeation unit.

[0006] Furthermore, a notch is provided at one end of the partition, a strip hole is provided in the middle of the partition, the inner convex plates are symmetrically welded to the two ends of the inner wall of the purification chamber, and a sponge pad is attached to the bottom end of each inner convex plate.

[0007] Furthermore, the bottoms of the two sponge pads are flush with each other, an interlayer is provided between the partition and the inner convex plate, and one end of the water injection pipe is aligned with the interlayer area between the partition and the inner convex plate.

[0008] Furthermore, the independent permeation unit includes a permeation layer and a fixing plate, the fixing plate is attached to the side of the permeation layer, a locking hole is opened on the surface of the fixing plate, and each independent permeation unit is fixed to the inner wall of the permeation chamber by passing a screw through the locking hole.

[0009] Furthermore, the driving mechanism includes a motor and a transfer frame, the lower hanging plate is integrally formed at the bottom of both sides of the transfer frame, the front end plate and the rear end plate are welded to the two ends of the outer side of the purification chamber respectively, and the surface of the front end plate is screwed with a transmission box.

[0010] Furthermore, a motor is screwed onto the outer side of one end of the transmission box, and a screw rod is inserted into the output end of the motor and the other end of the transmission box. The two screw rods rotate synchronously through the cooperation of the gears and toothed belts inside the transmission box. Threaded sleeves are provided on both sides of the transfer frame, and a first connecting column is integrally formed at the inner bottom of the transfer frame, and a top baffle is welded to the bottom of the first connecting column.

[0011] Furthermore, an extension plate is integrally formed on the side of the top baffle, and the extension plate covers the top of the strip hole. The bottom surface of the top baffle is flush with the surface of the partition. A second connecting column is welded below the top baffle, and a bottom baffle is welded to the bottom of the second connecting column. The bottom surface of the bottom baffle is flush with the surface of the inner convex plate.

[0012] Furthermore, the extrusion guide assembly includes an extrusion sleeve and a guide pipe, a docking plate is integrally formed on the inner side of the lower hanging plate, and a slot is provided between the lower hanging plate and the docking plate, end openings are provided at both ends of the extrusion sleeve, and the end of the extrusion sleeve is movably connected to the surface of the docking plate through a bearing.

[0013] Furthermore, a discharge pipe is inserted at the bottom of the docking plate, and the interior of the docking plate is a hollow structure. A plurality of through holes are provided on the surface of the extrusion sleeve, a receiving interface is provided at the top of the guide pipe, and a counterweight column is welded at the bottom of the guide pipe.

[0014] Furthermore, plug-in pipes are welded at both ends of the diversion pipe, and the plug-in pipes pass through the interior of the end opening and are then embedded in the interior of the docking plate. The interior of the socket is connected to the internal cavity of the diversion pipe, and a gap is provided between the top edge of the socket and the inner wall of the extrusion sleeve.

[0015] Beneficial effects of the present invention:

[0016] 1. The ceramic processing wastewater purification device is provided with a purification chamber and an infiltration chamber. A plurality of independent infiltration units are installed inside the infiltration chamber. During purification, the extrusion guide assembly at the bottom is driven by a driving mechanism to extrude each infiltration layer from the bottom of the infiltration chamber, thereby discharging the purified water in the infiltration layer through the extrusion process, reducing the power demand for the external high-pressure pump, thereby reducing the cost of subsequent maintenance and overhaul, and also reducing the failure rate.

[0017] 2. The ceramic processing wastewater purification device pushes the top baffle and the bottom baffle at the same time through the driving mechanism, and then can cooperate with the extrusion guide component at the bottom to perform the process of extrusion drainage, so as to avoid the problem that the extrusion guide component squeezes the independent permeation unit upward, causing the permeation layer to bulge upward, and thus failing to produce a strong extrusion effect. At the same time, the entire cavity can also be sealed during the water injection stage to ensure that the external input water pressure can fully act on the independent permeation unit, thereby maximizing the permeation purification efficiency.

[0018] 3. The ceramic processing wastewater purification device uses a counterweight structure inside the extrusion diversion component so that the top receiving interface part can always be set toward the top. Therefore, during the extrusion process, it can ensure that the discharged water is efficiently collected and diverted, and then discharged from a fixed drainage pipe. It can also avoid that part of the water body penetrates toward the position after extrusion after extrusion, thereby improving the extrusion discharge efficiency of the infiltrated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the appearance of a ceramic processing wastewater purification device of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the purification chamber part of the present invention;

[0021] Figure 3 It is an internal side cross-sectional view of the purification chamber and the permeation chamber of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the driving mechanism part of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the independent permeation unit part of the present invention;

[0024] Figure 6 for Figure 3 A magnified image of area A;

[0025] Figure 7 The figure is a disassembled view of the extruded flow guide component of the present invention;

[0026] In the figure: 1. purification chamber; 2. water injection pipeline; 3. permeation chamber; 4. driving mechanism; 5. partition; 6. strip hole; 7. inner convex plate; 8. notch; 9. rear end plate; 10. telescopic hole; 11. front end plate; 12. motor; 13. transmission box; 14. screw rod; 15. independent permeation unit; 16. extrusion guide assembly; 17. sponge pad; 18. transfer frame; 19. first connecting column; 20. top baffle; 21. second connecting column; 22. bottom baffle; 23. extension plate; 24. threaded sleeve; 25. permeation layer; 26. fixing plate; 27. locking hole; 28. discharge pipe; 29. ​​extrusion sleeve; 30. guide pipe; 31. socket; 32. counterweight column; 33. plug-in pipe; 34. through hole; 35. end opening; 36. docking plate; 37. slot; 38. lower hanging plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7 The present invention provides the following technical solutions: a ceramic processing wastewater purification device, comprising a purification device body, the purification device body comprising a purification chamber 1, a permeation chamber 3, a driving mechanism 4 and an extrusion guide assembly 16, the purification chamber 1 and the permeation chamber 3 are integrally formed, a water injection pipe 2 is inserted at the rear end of the purification chamber 1, a telescopic hole 10 is provided at the front end of the purification chamber 1, a partition 5 and an inner convex plate 7 are welded inside the purification chamber 1, a plurality of independent permeation units 15 are embedded inside the inner convex plate 7, and each independent permeation unit 15 is stacked and placed mutually, the outer side of the purification chamber 1 and the permeation chamber 3 is sleeved with a driving mechanism 4, the bottom of the driving mechanism 4 is integrally formed with a lower hanging plate 38, the inner side of the lower hanging plate 38 is interspersed with an extrusion guide assembly 16, and the top of the extrusion guide assembly 16 is against the surface of the lowest independent permeation unit 15. The ceramic processing wastewater purification device is used for permeation purification of wastewater generated in the ceramic production and processing process.

[0029] When the present invention is used, the wastewater to be purified is transported to the interior of the purification bin 1 through the water injection pipe 2 at one end, and is in the cavity between the top partition plate 5 and the inner convex plate 7. In the initial state, each internal baffle is controlled by the driving mechanism 4 to be moved to the rear end area, and this state is maintained by the pressure provided by the water source, so that the wastewater can penetrate downward into the independent osmosis unit 15, and the internal impurities are accumulated on the surface of the independent osmosis unit 15. The driving mechanism 4 is started regularly, and the entire transfer and the bottom extrusion guide component 16 are driven by the driving mechanism 4 to move along the interior of the bottom osmosis bin 3, so that the wastewater part after osmosis purification can be squeezed out from the bottom of the independent osmosis unit 15 with the help of the extrusion guide component 16, and discharged to the outside along the internal guide pipe 30.

[0030] In this embodiment, a notch 8 is provided at one end of the partition 5, a strip hole 6 is provided in the middle of the partition 5, the inner convex plate 7 is welded to the two ends of the inner wall of the purification chamber 1 in a symmetrical manner, and a sponge pad 17 is attached to the bottom end of each inner convex plate 7. The bottoms of the two sponge pads 17 are flush with each other, an interlayer is provided between the partition 5 and the inner convex plate 7, and one end of the water injection pipe 2 is aligned with the interlayer area between the partition 5 and the inner convex plate 7. The independent permeation unit 15 includes a permeation layer 25 and a fixing plate 26, the fixing plate 26 is attached to the side of the permeation layer 25, a locking hole 27 is provided on the surface of the fixing plate 26, and each independent permeation unit 15 is fixed to the inner wall of the permeation chamber 3 by screws passing through the locking hole 27. The top baffle 20 and the bottom baffle 22 are pushed simultaneously by the driving mechanism 4, so as to cooperate with the extrusion guide component 16 at the bottom to perform the extrusion drainage process, thereby avoiding the problem that the extrusion guide component 16 squeezes the independent permeation unit 15 upward and causes the permeation layer 25 to bulge upward, thereby failing to produce a strong extrusion effect. At the same time, the entire cavity can also be sealed during the water injection stage to ensure that the external input water pressure can fully act on the independent permeation unit 15, thereby maximizing the permeation purification efficiency.

[0031] Specifically, wastewater is injected into the bottom of the top partition 5 through the water injection pipe 2 inside the purification chamber 1, and in the initial state, the top baffle 20 covers the notch 8, and the extension plate 23 is pressed against the surface of the strip hole 6, so as to achieve the blocking effect of the top cavity of the wastewater. Therefore, the injected wastewater can only pass through the independent osmosis unit 15 at the bottom under the action of its own pressure, and the osmotic purification effect is achieved with the help of the independent osmosis unit 15. Subsequently, when the extrusion guide component 16 at the bottom is driven by the driving mechanism 4 to pressurize and discharge the bottom of the independent osmosis unit 15, the extension plate 23 will be passed through the telescopic hole 10 at the front end.

[0032] In this embodiment, the driving mechanism 4 includes a motor 12 and a transfer frame 18, the lower hanging plate 38 is integrally formed at the bottom of both sides of the transfer frame 18, the front end plate 11 and the rear end plate 9 are welded to the two ends of the outer side of the purification chamber 1, and the surface of the front end plate 11 is screwed with a transmission box 13. The motor 12 is screwed to the outer side of one end of the transmission box 13, and the output end of the motor 12 and the other end of the transmission box 13 are interspersed with a screw rod 14. The two screw rods 14 are synchronously rotated by cooperating with the gears and toothed belts inside the transmission box 13. Threaded sleeves 24 are provided on both sides of the transfer frame 18, and the first connecting column 19 is integrally formed at the inner bottom of the transfer frame 18, and the top baffle 20 is welded to the bottom of the first connecting column 19. The side of the top baffle 20 is integrally formed with an extension plate 23, and the extension plate 23 covers the top of the strip hole 6. The bottom surface of the top baffle 20 is flush with the surface of the partition 5. A second connecting column 21 is welded below the top baffle 20, and a bottom baffle 22 is welded to the bottom of the second connecting column 21. The bottom surface of the bottom baffle 22 is flush with the surface of the inner convex plate 7. A purification chamber 1 and a permeation chamber 3 are provided, and a plurality of independent permeation units 15 are installed inside the permeation chamber 3. When purifying, the extrusion guide assembly 16 at the bottom is driven by the driving mechanism 4 to extrude each permeation layer 25 from the bottom of the permeation chamber 3, so that the purified water in the permeation layer 25 is discharged through the extrusion process, which reduces the power demand for the external high-pressure pump, thereby reducing the cost of subsequent maintenance and repair, and also reduces the failure rate.

[0033] Specifically, after starting the driving mechanism 4, the screw rods 14 at both ends are driven to rotate through the transmission box 13 at the same time. The screw rods 14 pass through the inside of the threaded sleeve 24, which can drive the transfer frame 18 to move horizontally, and finally move the entire transfer frame 18 along the surface of the purification bin 1. At this time, the inner top baffle 20 and the bottom baffle 22 can be driven to move along the inside of the purification bin 1, and the bottom extrusion guide component 16 can also be driven to move. When pressure is applied to the bottom area of ​​the independent infiltration unit 15 for drainage through the extrusion guide component 16, the bottom baffle 22 will also be driven to move along the inner convex plate 7 and the top area of ​​the independent infiltration unit 15. Therefore, when the extrusion guide component 16 squeezes the independent infiltration unit 15 upward from the bottom, the independent infiltration unit 15 will be supported from the top through the bottom baffle 22 to ensure that the independent infiltration unit 15 can be compressed and the wastewater that penetrates into the interior can be squeezed out toward the bottom.

[0034] In this embodiment, the extrusion guide assembly 16 includes an extrusion sleeve 29 and a guide pipe 30. A docking plate 36 is integrally formed on the inner side of the lower hanging plate 38, and a slot 37 is provided between the lower hanging plate 38 and the docking plate 36. End openings 35 are provided at both ends of the extrusion sleeve 29, and the ends of the extrusion sleeve 29 are movably connected to the surface of the docking plate 36 through bearings. A discharge pipe 28 is inserted at the bottom of the docking plate 36, and the interior of the docking plate 36 is a hollow structure. A plurality of through holes 34 are provided on the surface of the extrusion sleeve 29. A socket 31 is provided at the top of the guide pipe 30, and a counterweight column 32 is welded to the bottom of the guide pipe 30. A plug-in pipe 33 is welded at both ends of the guide pipe 30, and the plug-in pipe 33 passes through the interior of the end opening 35 and then is embedded in the interior of the docking plate 36. The interior of the socket 31 is connected to the internal cavity of the guide pipe 30, and a gap is provided between the top edge of the socket 31 and the inner wall of the extrusion sleeve 29. The counterweight structure inside the extrusion diversion component 16 allows the receiving interface 31 at the top to always be set toward the top, so that during the extrusion process, the discharged water can be efficiently collected and diverted, and discharged from a fixed drainage pipe. It can also avoid that part of the water body penetrates toward the position after extrusion after extrusion, thereby improving the extrusion discharge efficiency of the infiltrated water.

[0035] Specifically, when the inner extrusion sleeve 29 is moved by the transfer frame 18 and the lower hanging plate 38, the extrusion sleeve 29 will be pressed against the bottom area of ​​the independent infiltration unit 15, thereby discharging the water absorbed by the infiltration in the independent infiltration unit 15 and flowing into the interior of the extrusion sleeve 29 from the through hole 34. Since the counterweight column 32 itself is heavy, when the extrusion sleeve 29 rolls along the bottom of the independent infiltration unit 15, the counterweight column 32 can always remain vertically downward, thereby causing the receiving interface 31 at the top to always remain vertically upward. Therefore, after the extrusion sleeve 29 discharges the water in the top independent infiltration unit 15 downward with the help of the through hole 34, it will flow into the central guide pipe 30 from the receiving interface 31, and finally enter the docking bin at one end along the guide pipe 30, and then be discharged from the discharge pipe 28 below.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ceramic processing wastewater purification device, comprising a purification device body, characterized in that: The purification device body comprises a purification chamber (1), a permeation chamber (3), a driving mechanism (4) and an extrusion guide assembly (16); the purification chamber (1) and the permeation chamber (3) are integrally formed; a water injection pipe (2) is inserted at the rear end of the purification chamber (1); a telescopic hole (10) is provided at the front end of the purification chamber (1); a partition plate (5) and an inner convex plate (7) are welded inside the purification chamber (1); a plurality of independent permeation units (15) are embedded inside the inner convex plate (7); and each independent permeation unit (15) is stacked on top of each other; and the outer sides of the purification chamber (1) and the permeation chamber (3) are sleeved with a driving mechanism ( 4), the bottom of the driving mechanism (4) is integrally formed with a lower hanging plate (38), the inner side of the lower hanging plate (38) is inserted with an extrusion guide component (16), the top of the extrusion guide component (16) is against the surface of the lowest independent permeation unit (15), one end of the partition (5) is provided with a notch (8), the middle of the partition (5) is provided with a strip hole (6), the inner convex plate (7) is symmetrically welded to the two ends of the inner wall of the purification chamber (1), and the bottom end of each inner convex plate (7) is mounted with a sponge pad (17), and the driving mechanism (4) includes a motor (12) and a transfer frame (18) The lower hanging plate (38) is integrally formed at the bottom of both sides of the transfer frame (18), and the two ends of the outer side of the purification chamber (1) are respectively welded with a front end plate (11) and a rear end plate (9), and the surface of the front end plate (11) is screwed with a transmission box (13), and the outer side of one end of the transmission box (13) is screwed with a motor (12), and the output end of the motor (12) and the other end of the transmission box (13) are interspersed with a screw rod (14), and the two screw rods (14) are matched with the gears and toothed belts inside the transmission box (13) to rotate synchronously, and threaded sleeves (24) are provided on both sides of the transfer frame (18). A first connecting column (19) is integrally formed at the bottom of the inner side of the transfer frame (18); a top baffle (20) is welded to the bottom of the first connecting column (19); an extension plate (23) is integrally formed on the side of the top baffle (20); the extension plate (23) covers the top of the strip hole (6); the bottom surface of the top baffle (20) is flush with the surface of the partition (5); a second connecting column (21) is welded below the top baffle (20); a bottom baffle (22) is welded to the bottom of the second connecting column (21); and the bottom surface of the bottom baffle (22) is flush with the surface of the inner convex plate (7).

2. A ceramic processing wastewater purification device according to claim 1, characterized in that: The bottoms of the two sponge pads (17) are flush with each other, a sandwich layer is provided between the partition plate (5) and the inner convex plate (7), and one end of the water injection pipe (2) is aligned with the sandwich layer area between the partition plate (5) and the inner convex plate (7).

3. A ceramic processing wastewater purification device according to claim 2, characterized in that: The independent permeation unit (15) comprises a permeation layer (25) and a fixing plate (26), wherein the fixing plate (26) is attached to the side of the permeation layer (25), a locking hole (27) is provided on the surface of the fixing plate (26), and each independent permeation unit (15) is fixed to the inner wall of the permeation chamber (3) by means of a screw passing through the locking hole (27).

4. A ceramic processing wastewater purification device according to claim 1, characterized in that: The extrusion guide assembly (16) comprises an extrusion sleeve (29) and a guide pipe (30); a docking plate (36) is integrally formed on the inner side of the lower hanging plate (38); a clamping groove (37) is provided between the lower hanging plate (38) and the docking plate (36); end openings (35) are provided at both ends of the extrusion sleeve (29); and the ends of the extrusion sleeve (29) are movably connected to the surface of the docking plate (36) via bearings.

5. A ceramic processing wastewater purification device according to claim 4, characterized in that: A discharge pipe (28) is inserted at the bottom of the docking plate (36), and the interior of the docking plate (36) is a hollow structure. A plurality of through holes (34) are provided on the surface of the extrusion sleeve (29). A receiving port (31) is provided at the top of the guide pipe (30), and a counterweight column (32) is welded to the bottom of the guide pipe (30).

6. A ceramic processing wastewater purification device according to claim 5, characterized in that: The two ends of the guide pipe (30) are welded with plug pipes (33), the plug pipe (33) passes through the interior of the end opening (35) and then is embedded in the interior of the docking plate (36), the interior of the socket (31) is connected to the internal cavity of the guide pipe (30), and a gap is provided between the top edge of the socket (31) and the inner wall of the extrusion sleeve (29).

Citation Information

Patent Citations

  • Energy-saving green building construction dust removal device and use method thereof

    CN117563368A

  • Mud-water separation equipment for hydraulic engineering construction

    CN218774439U