High-pressure water sand blasting machine capable of circularly separating water from sand

Abstract

The utility model relates to a high-pressure water sand blasting machine capable of circularly separating water from sand, which comprises a working box, a high-pressure water sand blasting nozzle, a workpiece supporting structure and a filtering and separating structure, and is technically characterized in that the filtering and separating structure comprises an inclined supporting plate, a large filtering hole group, a filtering layer and a small filtering hole group, a vertical rod is fixed to the center of the lower surface of a fixed base of the rotary table, a sliding sleeve is arranged on the vertical rod, the lower portion of the sliding sleeve penetrates through a positioning cylinder to reach the water-sand recycling bin and fixes a stirring paddle, and a transmission mechanism is arranged between the upper portion of the sliding sleeve and a driving mechanism of the rotary table. A clean water spray head group is fixed above the high-position side of the inclined supporting plate on the side wall of the working box; and a filtering layer upper material collecting box is arranged on the low-position side of the inclined supporting plate on the working box. The machine achieves the purpose of cyclic utilization of water and sand on one hand, facilitates cleaning of the filter layer on the other hand, improves the separation efficiency, reduces the workpiece placement difficulty and guarantees the placement stability on the other hand.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure water blasting machines, specifically to a high-pressure water blasting machine with recirculating water and sand separation. Background Technology

[0002] High-pressure water blasting machines use a high-pressure water pump to pressurize water to approximately 50 MPa, which flows through the nozzle and mixes with fine sand at the mixing joint before being sprayed out from the nozzle head. This effectively removes rust particles or oxide scale from steel structures, providing a clean surface for corrosion protection. However, water blasting machines require a large amount of water and sand during operation, which would result in significant waste if it were not recycled.

[0003] Based on this, CN 214923526 U discloses a water blasting machine, which includes a stirring mechanism and a rust removal mechanism. The end of the transmission rod in the stirring mechanism is equipped with a drive component for alternating forward and reverse rotation. A sleeve for slidably connecting to a groove on the surface of a fixed rod on the transmission rod, used to drive the water blasting machine to tumble up and down via the stirring blades, is also present. The intention is that after rust removal of the workpiece, a filter screen can filter the rust in the water blasting and water mixture. The filtered rust can be discharged and collected through the rust discharge port, while the water blasting and water mixture can enter the machine body through the filter screen, achieving the reuse of water and sand resources. However, the following problems exist: 1. After a period of operation, some filter holes on the filter screen are easily clogged by rust particles or oxide scale, resulting in reduced filtration efficiency and inconvenient cleaning; 2. The transmission rod is fixed to the center of the placement plate, interfering with the arrangement of the workpiece above the placement plate. Furthermore, the placement of the workpiece is strictly controlled; uneven placement causes significant working stress at the connection between the transmission rod and the placement plate, which is detrimental to long-term stable operation. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure water blasting machine with a reasonable structure and reliable operation that can separate water and sand, thereby solving the above-mentioned problems. On the one hand, it achieves the purpose of recycling water and sand, and on the other hand, it facilitates the cleaning of the filter layer, improves the separation efficiency, and reduces the difficulty of placing the workpiece while ensuring the stability of the placement.

[0005] The technical solution of this utility model is:

[0006] A high-pressure water blasting machine with recyclable water and sand separation includes a working box, a high-pressure water blasting nozzle, a workpiece support structure, and a filtration and separation structure. The key technical features are: the filtration and separation structure includes an inclined support plate built into the lower part of the working box, a large filter hole group on the inclined support plate, a filter layer laid on the upper surface of the inclined support plate, and a small filter hole group on the filter layer. A water and sand recovery chamber is formed between the inclined support plate and the bottom surface of the working box. The workpiece support structure is a turntable supported by pillars above the filtration and separation structure. A vertical rod is fixed to the center of the lower surface of the fixed base of the turntable. The upright is equipped with a sliding sleeve, and the filter separation structure is equipped with a positioning cylinder that cooperates with the sliding sleeve. The lower part of the sliding sleeve passes through the positioning cylinder to reach the water and sand recovery chamber and fixes the stirring paddle. A transmission mechanism is provided between the upper part of the sliding sleeve and the drive mechanism of the turntable. A clean water nozzle assembly is fixed above the high side of the inclined support plate on the side wall of the working box. A filter layer material collection box is provided on the low side of the inclined support plate on the working box. A filter layer material outflow port is provided on the side wall of the working box. An isolation door corresponding to the filter layer material outflow port is provided inside the filter layer material collection box. A circulation port is provided at the lower part of the side wall of the water and sand recovery chamber.

[0007] The aforementioned high-pressure water blasting machine with recyclable water and sand separation has a lifting port corresponding to an isolation door on the top surface of the filter layer material collection box. The upper edge of the isolation door passes through the lifting port and is connected to a horizontal connecting plate. A lifting cylinder is fixed between the horizontal connecting plate and the top surface of the filter layer material collection box.

[0008] In the aforementioned high-pressure water blasting machine with recyclable water and sand separation, the lower outer wall of the high-pressure water blasting nozzle is hinged to the inner wall of the working box via a rotating shaft, and a connecting rod is hinged to the upper outer wall of the high-pressure water blasting nozzle. A push-pull cylinder is fixed on the top surface of the working box, and the end of the cylinder rod of the push-pull cylinder is hinged to the connecting rod.

[0009] The aforementioned high-pressure water blasting machine with recyclable water and sand separation includes a turntable comprising a fixed base, a concentric turntable supported above the fixed base by bearings, a drive ring with an internal gear ring located on the lower edge of the concentric turntable, and a drive mechanism fixed to the side of the support column. The drive mechanism includes a drive source and a drive gear located at the output end of the drive source and meshing with the internal gear ring. The transmission mechanism is a driven gear located on the upper part of the sliding sleeve and meshing with the drive gear.

[0010] In the aforementioned high-pressure water blasting machine with recyclable water and sand separation, the bottom surface of the water and sand recovery chamber is cone-shaped, which facilitates uniform mixing.

[0011] The beneficial effects of this utility model are:

[0012] 1. Using a turntable to support the workpiece provides good stability, reduces the difficulty of work support, and ensures the installation and use of the mixing paddle, as well as the uniformity of the recycled water and sand.

[0013] 2. The filter layer traps rust particles and oxide scale. After a period of operation, the high-pressure water jet nozzle is temporarily shut off. The isolation door is lifted using a lifting cylinder, and the clean water nozzle assembly is opened to spray high-pressure water onto the inclined support plate. This impacts the rust particles and oxide scale on the surface of the filter layer, causing them to flow into the filter layer's collection box with the water flow. This achieves the purpose of cleaning the top of the filter layer, making cleaning convenient and improving separation efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] In the diagram: 1. High-pressure water jet nozzle, 2. Connecting rod, 3. Push-pull cylinder, 4. Working box, 5. Rotating shaft, 6. Concentric turntable, 7. Bearing, 8. Fixed base, 9. Drive ring, 10. Horizontal connecting plate, 11. Lifting cylinder, 12. Filter layer upper material collection box, 13. Filter layer upper material lower flow port, 14. Isolation door, 15. Water and sand recovery bin, 16. Agitator, 17. Inclined support plate, 18. Vertical pole, 19. Circulation port, 20. Sliding sleeve, 21. Drive source, 22. Drive gear, 23. Clean water nozzle assembly, 24. Filter layer, 25. Internal gear ring, 26. Driven gear. Detailed Implementation

[0016] The present invention will be described in detail with reference to the accompanying drawings.

[0017] like Figure 1 As shown, this high-pressure water blasting machine with recirculating water and sand separation includes a working chamber 4, a high-pressure water blasting nozzle 1, a workpiece support structure, and a filter separation structure. A door is located on the side of the working chamber 4, which is omitted in the figure.

[0018] The filtration and separation structure includes an inclined support plate 17 built into the lower part of the working box 4, a large filter hole group provided on the inclined support plate 17, a filter layer 24 laid on the upper surface of the inclined support plate 17, and a small filter hole group provided on the filter layer 24. A water and sand recovery chamber 15 is formed between the inclined support plate 17 and the bottom surface of the working box 4, and a circulation port 19 is provided on the lower part of the side wall of the water and sand recovery chamber 15.

[0019] The workpiece support structure is a turntable supported by pillars above the filtration and separation structure. A vertical rod 18 is fixed to the center of the lower surface of the fixed base 8 of the turntable. A sliding sleeve 20 is provided on the vertical rod 18. The filtration and separation structure has a positioning cylinder that mates with the sliding sleeve 20. The lower part of the sliding sleeve 20 passes through the positioning cylinder to reach the water and sand recovery chamber 15 and fixes the stirring paddle 16. A transmission mechanism is provided between the upper part of the sliding sleeve 20 and the drive mechanism of the turntable. In this embodiment, the turntable includes a fixed base 8, a concentric turntable 6 supported above the fixed base 8 by bearings 7, a drive ring 9 with an internal gear ring 25 located at the lower edge of the concentric turntable 6, and a drive mechanism fixed to the side of the pillars. The drive mechanism includes a drive source 21 and a driving gear 22 located at the output end of the drive source 21 and meshing with the internal gear ring 25. The transmission mechanism is a driven gear 26 located on the upper part of the sliding sleeve 20 and meshing with the driving gear 22.

[0020] A water spray nozzle assembly 23 is fixed above the high side of the inclined support plate 17 on the side wall of the working box 4. A filter layer material collection box 12 is provided on the low side of the inclined support plate 17. A filter layer material discharge port 13 is provided on the side wall of the working box 4. An isolation door 14 corresponding to the filter layer material discharge port 13 is provided inside the filter layer material collection box 12. In this embodiment, a lifting port corresponding to the isolation door 14 is provided on the top surface of the filter layer material collection box 12. The upper edge of the isolation door 14 passes through the lifting port and is connected to a horizontal connecting plate 10. A lifting cylinder 11 is fixed between the horizontal connecting plate 10 and the top surface of the filter layer material collection box 12.

[0021] In this embodiment, the lower outer wall of the high-pressure water blasting nozzle 1 is hinged to the inner wall of the working box 4 via a rotating shaft 5. A connecting rod 2 is hinged to the upper outer wall of the high-pressure water blasting nozzle 1. A push-pull cylinder 3 is fixed to the top surface of the working box 4, and the end of the cylinder rod of the push-pull cylinder 3 is hinged to the connecting rod 2. The top surface of the working box 4 is provided with a swing clearance port corresponding to the high-pressure water blasting nozzle 1, and the high-pressure water blasting nozzle 1 is located diagonally above the turntable.

[0022] Working principle:

[0023] 1. Place the workpiece to be processed in the middle of the concentric turntable 6 on the turntable. It has good stability. Start the drive source 21. Drive the concentric turntable 6 to rotate through the drive gear 22, internal gear ring 25 and drive ring 9. At the same time, drive the stirring paddle 16 to rotate through the driven gear 26 and sliding sleeve 20.

[0024] 2. The water-sand mixture is sprayed onto the workpiece above the turntable by the high-pressure water sandblasting nozzle 1. During this process, the high-pressure water sandblasting nozzle 1 is driven to swing around the hinge point with the work box 4 by the push-pull cylinder 3 and the connecting rod 2. With the cooperation of the turntable, the outer surface of the workpiece on the turntable is fully sandblasted.

[0025] 3. The water-sand mixture and the removed rust particles or oxide scale fall above the filter separation structure. The water-sand mixture passes through the filter layer 24 and the small and large filter holes on the inclined support plate 17, falls into the water-sand recovery chamber 15, and is stirred evenly under the stirring action of the agitator 16. It is then discharged through the circulation port 19 to the circulation pump and sent to the recycling system.

[0026] 4. The filter layer 24 traps rust particles and oxide scale. After working for a period of time, the high-pressure water blasting nozzle 1 is temporarily shut off. The isolation door 14 is lifted using the lifting cylinder 11, and the clean water nozzle group 23 is opened to spray high-pressure water onto the inclined support plate 17. This creates an impact on the rust particles and oxide scale on the surface of the filter layer 24. The rust particles and oxide scale enter the filter layer collection box 12 with the water flow, thus cleaning the area above the filter layer 24 and preventing blockage.

[0027] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A high-pressure water blasting machine with recyclable water-sand separation, comprising a working box, a high-pressure water blasting nozzle, a workpiece support structure, and a filter separation structure, characterized in that: The filtration and separation structure includes an inclined support plate built into the lower part of the working box, a large filter hole group on the inclined support plate, a filter layer laid on the upper surface of the inclined support plate, and a small filter hole group on the filter layer. A water and sand recovery chamber is formed between the inclined support plate and the bottom surface of the working box. The workpiece support structure is a turntable supported by a column above the filtration and separation structure. A vertical rod is fixed at the center of the lower surface of the fixed base of the turntable. A sliding sleeve is provided on the vertical rod. The filtration and separation structure is provided with a positioning cylinder that cooperates with the sliding sleeve. The lower part of the sliding sleeve passes through the positioning cylinder to reach the water and sand recovery chamber and fixes the stirring paddle. A transmission mechanism is provided between the upper part of the sliding sleeve and the drive mechanism of the turntable. A clean water nozzle group is fixed above the high side of the inclined support plate on the side wall of the working box. A filter layer material collection box is provided on the low side of the inclined support plate on the working box. A filter layer material outflow port is provided on the side wall of the working box. An isolation door corresponding to the filter layer material outflow port is provided in the filter layer material collection box. A circulation port is provided at the lower part of the side wall of the water and sand recovery chamber.

2. The high-pressure water blasting machine with recyclable water-sand separation according to claim 1, characterized in that: The top surface of the filter layer material collection box is provided with a corresponding lifting port for the isolation door. The upper edge of the isolation door passes through the lifting port and is connected to a horizontal connecting plate. A lifting cylinder is fixed between the horizontal connecting plate and the top surface of the filter layer material collection box.

3. The high-pressure water blasting machine with recyclable water-sand separation according to claim 1, characterized in that: The lower outer wall of the high-pressure water sandblasting nozzle is hinged to the inner wall of the working box via a rotating shaft. A connecting rod is hinged to the upper outer wall of the high-pressure water sandblasting nozzle. A push-pull cylinder is fixed to the top surface of the working box, and the end of the cylinder rod of the push-pull cylinder is hinged to the connecting rod.

4. The high-pressure water blasting machine with recyclable water-sand separation according to claim 1, characterized in that: The turntable includes a fixed base, a concentric turntable supported on the fixed base by bearings, a drive ring with an internal gear ring located on the lower edge of the concentric turntable, and a drive mechanism fixed to the side of the support column. The drive mechanism includes a drive source and a drive gear located at the output end of the drive source and meshing with the internal gear ring. The transmission mechanism is a driven gear located on the upper part of the sliding sleeve and meshing with the drive gear.

5. The high-pressure water blasting machine with recyclable water-sand separation according to claim 1, characterized in that: The bottom of the water and sand recovery bin is cone-shaped.

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