Multi-stage cleaning equipment for surface treatment of machine-made sand
By introducing a multi-stage cleaning device into the manufactured sand cleaning equipment, including filter plates, hollow rotating shafts, and anti-clogging mechanisms, the problem of poor cleaning effect in existing equipment has been solved, achieving efficient manufactured sand cleaning and anti-clogging effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
Existing manufactured sand cleaning devices have limited cleaning effectiveness and require repeated cleaning.
A multi-stage cleaning device was designed, including a cleaning tank, filter plates, a hollow rotating shaft, nozzles, a stirring rod, and an anti-clogging mechanism. The filter plates filter large particles of debris, and the cleaning effect is improved by combining pneumatic and physical stirring with acid washing solution. The anti-clogging mechanism prevents the filter plates from clogging.
It improves the cleaning effect of manufactured sand, reduces the number of cleaning cycles, prevents filter plate clogging, and enhances cleaning efficiency.
Smart Images

Figure CN223980876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning equipment technology, specifically a multi-stage cleaning device for surface treatment of manufactured sand. Background Technology
[0002] Manufactured sand refers to sand produced by sand making machines and other auxiliary equipment. The finished product is more regular and can be processed into sand of different shapes and sizes according to different process requirements, better meeting daily needs. After production, manufactured sand may have stains on its surface, requiring cleaning.
[0003] A search revealed that a utility model patent with patent authorization announcement number CN217191136U discloses a sand washing machine for manufactured sand, including a washing box, a first motor at the top of the washing box, a first rotating shaft connected to the output end of the first motor, a main dust removal brush on the outer wall of the first rotating shaft, several rotating rods connected to the outer wall of the first rotating shaft above the main dust removal brush, a secondary dust removal brush at the bottom end of the rotating rod away from the first rotating shaft, and a dust outlet on one side of the washing box.
[0004] Most existing manufactured sand cleaning devices use only one cleaning method, and the cleaning effect is relatively limited, sometimes requiring repeated cleaning. Utility Model Content
[0005] The purpose of this invention is to provide a multi-stage cleaning device for surface treatment of manufactured sand, which solves the problem of limited cleaning effect of existing manufactured sand cleaning devices.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage cleaning device for surface treatment of manufactured sand, comprising a cleaning tank, a support ring fixedly connected to the upper inner side of the cleaning tank, a filter plate placed at the upper end of the support ring and slidably connected to the inner side of the cleaning tank, multiple supports fixedly connected to the upper edge of the filter plate, and a motor fixedly connected to the ends of the multiple supports, a hollow rotating shaft fixedly connected to the output shaft end of the motor, the hollow rotating shaft penetrating the filter plate and connected to the filter plate via a bearing, an anti-clogging mechanism provided on the hollow rotating shaft, a nozzle provided at the lower section of the shaft body of the hollow rotating shaft, a block fixedly connected to the bottom of the hollow rotating shaft, two support rods fixedly connected to the bottom inner side of the cleaning tank, a connecting seat fixedly connected to the ends of the two support rods, an auxiliary shaft installed inside the connecting seat via a bearing, the top of the auxiliary shaft engaging with the block, and a stirring rod fixedly connected to the shaft body of the auxiliary shaft.
[0007] Preferably, a positioning pin is fixedly connected to the bottom of the filter plate, and the positioning pin passes through the support ring and is slidably connected to the support ring. The positioning pin serves to position the filter plate on the support ring.
[0008] Preferably, a discharge pipe is fixedly connected to the top of the cleaning tank, and a valve is installed on the discharge pipe. The discharge pipe facilitates the discharge of the cleaned manufactured sand from the cleaning tank.
[0009] Preferably, an air supply pipe is fixedly connected to the side wall of the cleaning tank, and the air supply pipe extends through the cleaning tank. A sealing sleeve is fixedly connected to the end of the air supply pipe, and the sealing sleeve is fitted onto the outside of the hollow rotating shaft. Two sealing rings are embedded in the inner wall of the sealing sleeve, and the sealing rings abut against the hollow rotating shaft. The hollow rotating shaft is a hollow shaft, and its outer wall has an annular groove and a through hole. The position of the annular groove corresponds to the sealing sleeve, so that the air supplied by the air supply pipe can first fill the annular groove, and then enter the hollow rotating shaft through the through hole.
[0010] Preferably, the anti-clogging mechanism includes a connecting rod fixedly connected to a hollow rotating shaft, with a hollow shell fixedly connected to the end of the connecting rod. A scraper is slidably connected inside the hollow shell, and the scraper contacts the filter plate. A protrusion is fixedly connected to the filter plate, and the position of the protrusion corresponds to that of the scraper. By setting up the anti-clogging mechanism, blockage at the filter plate can be prevented.
[0011] Preferably, a spring is provided on the inner side of the hollow shell, one end of the spring is fixedly connected to the scraper, and the other end of the spring is fixedly connected to the inner surface of the hollow shell. By providing the spring, elastic force can be applied to the scraper, ensuring that it remains in contact with the filter plate at all times.
[0012] Preferably, the scraper is provided with ball bearings on its side, and the ball bearings are in contact with the inner surface of the hollow shell. By providing the ball bearings, the relative friction between the scraper and the hollow shell can be reduced.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model involves setting a filter plate inside the cleaning tank, and then setting a hollow rotating shaft driven by an electric motor on the filter plate. The hollow rotating shaft is equipped with a nozzle. In addition, an auxiliary shaft with a stirring rod, which can be driven by the hollow rotating shaft, is set at the bottom of the cleaning tank. In this way, the manufactured sand can first pass through the filter plate to remove large particles of impurities, and then undergo pneumatic and physical dual stirring to make it better contact with the pickling solution, thereby improving the cleaning effect of the manufactured sand.
[0015] 2. This utility model provides an anti-clogging mechanism on a hollow rotating shaft, with a protrusion in the anti-clogging mechanism set on the filter plate. The scraper in the anti-clogging mechanism can rotate with the hollow rotating shaft and then retract into the hollow shell through collision with the protrusion. After the two are misaligned, the scraper will re-abut against the filter plate under the action of the spring and impact the filter plate, thereby generating a certain vibration, thus achieving the purpose of preventing the filter plate from clogging. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 A partial structural diagram;
[0018] Figure 3 This utility model Figure 1 A front sectional view;
[0019] Figure 4 This utility model Figure 3 Enlarged view of point A;
[0020] Figure 5 This utility model Figure 3 Enlarged view of the anti-blocking mechanism.
[0021] In the diagram: 1. Cleaning tank; 2. Support ring; 3. Filter plate; 4. Positioning pin; 5. Bracket; 6. Motor; 7. Hollow rotating shaft; 8. Anti-clogging mechanism; 9. Nozzle; 10. Block; 11. Support rod; 12. Connecting seat; 13. Auxiliary shaft; 14. Stirring rod; 15. Air supply pipe; 16. Sealing sleeve; 17. Sealing ring; 18. Discharge pipe; 81. Connecting rod; 82. Hollow shell; 83. Scraper; 84. Spring; 85. Ball bearing; 86. Protrusion. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-3A multi-stage cleaning device for surface treatment of manufactured sand includes a cleaning tank 1, a support ring 2 fixedly connected to the upper inner side of the cleaning tank 1, a filter plate 3 placed at the upper end of the support ring 2 and slidably connected to the inner side of the cleaning tank 1, and a positioning pin 4 fixedly connected to the bottom of the filter plate 3, the positioning pin 4 passing through the support ring 2 and slidably connected to the support ring 2. The positioning pin 4 positions the filter plate 3 on the support ring 2. Multiple supports 5 are fixedly connected to the upper edge of the filter plate 3, and a motor 6 is fixedly connected to the ends of the supports 5. A hollow rotating shaft 7 is fixedly connected to the output shaft of the motor 6. The hollow rotating shaft 7 passes through the filter plate 3 and is connected to the filter plate 3 via a bearing. An anti-clogging mechanism 8 is provided on the hollow rotating shaft 7. A nozzle 9 is provided on the lower section of the shaft of the hollow rotating shaft 7. A block 10 is fixedly connected to the bottom of the hollow rotating shaft 7. Two support rods 11 are fixedly connected to the bottom inner side of the washing tank 1. A connecting seat 12 is fixedly connected to the ends of the two support rods 11. An auxiliary shaft 13 is installed inside the connecting seat 12 via a bearing. The top of the auxiliary shaft 13 is engaged with the block 10. A stirring rod 14 is fixedly connected to the shaft of the auxiliary shaft 13. A discharge pipe 18 is fixedly connected to the top of the washing tank 1, and a valve is provided on the discharge pipe 18. The discharge pipe 18 facilitates the discharge of the cleaned manufactured sand from the washing tank 1.
[0024] Please see Figures 3-4 An air supply pipe 15 is fixedly connected to the side wall of the cleaning tank 1, and the air supply pipe 15 passes through the cleaning tank 1. A sealing sleeve 16 is fixedly connected to the end of the air supply pipe 15, and the sealing sleeve 16 is fitted onto the outside of the hollow rotating shaft 7. Two sealing rings 17 are embedded in the inner ring wall of the sealing sleeve 16, and the sealing rings 17 abut against the hollow rotating shaft 7. The hollow rotating shaft 7 is a hollow shaft, and its outer wall has an annular groove and a through hole. The position of the annular groove corresponds to the sealing sleeve 16, so that the air supplied by the air supply pipe 15 can first fill the annular groove, and then enter the hollow rotating shaft 7 through the through hole.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5The anti-clogging mechanism 8 prevents blockage at the filter plate 3. The anti-clogging mechanism 8 includes a connecting rod 81 fixedly connected to the hollow rotating shaft 7. A hollow shell 82 is fixedly connected to the end of the connecting rod 81. A scraper 83 is slidably connected inside the hollow shell 82, contacting the filter plate 3. A protrusion 86 is fixedly connected to the filter plate 3, its position corresponding to the scraper 83. A spring 84 is provided inside the hollow shell 82, one end of which is fixedly connected to the scraper 83, and the other end is fixedly connected to the inner surface of the hollow shell 82. The spring 84 applies elastic force to the scraper 83, ensuring it remains in contact with the filter plate 3. Ball bearings 85 are provided on the side of the scraper 83, contacting the inner surface of the hollow shell 82. The ball bearings 85 reduce the relative friction between the scraper 83 and the hollow shell 82.
[0026] The specific implementation process of this utility model is as follows: In use, firstly, an acidic solution for pickling manufactured sand is added to the cleaning tank 1. Then, the filter plate 3 is placed on the support ring 2 and positioned using the positioning pin 4. Subsequently, the air supply pipe 15 is connected to the air compressor via a hose, allowing air to be injected into the hollow rotating shaft 7. The pressurized air can then be ejected through the nozzle 9. Next, manufactured sand is added to the cleaning tank 1. At this time, large particles of impurities in the manufactured sand are filtered out by the filter plate 3 and then enter the pickling solution. Simultaneously, the motor 6 drives the hollow rotating shaft 7 to rotate, and the hollow rotating shaft 7... The auxiliary shaft 13 is rotated by the block 10, which in turn drives the stirring rod 14 to clamp the manufactured sand in the cleaning tank 1. With the stirring started, the sand comes into better contact with the pickling solution, thereby improving the cleaning effect of the manufactured sand. At the same time, the scraper 83 in the anti-clogging mechanism 8 can rotate with the hollow rotating shaft 7 and then retract into the hollow shell 82 by colliding with the protrusion 86. After the two are misaligned, the scraper 83 will re-abut against the filter plate 3 under the action of the spring 84 and impact the filter plate 3, thereby generating a certain vibration to prevent the filter plate 3 from clogging.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-stage cleaning apparatus for surface treatment of manufactured sand, comprising a washing tank (1), characterized in that: The inner side upper portion of the cleaning tank (1) is fixedly connected with a supporting ring (2), the upper end of the supporting ring (2) is provided with a filter plate (3), and the filter plate (3) is slidingly connected to the inner side of the cleaning tank (1); the upper end edge of the filter plate (3) is fixedly connected with a plurality of supports (5), and the distal ends of the plurality of supports (5) are fixedly connected with an electric motor (6); the output shaft distal end of the electric motor (6) is fixedly connected with a hollow rotating shaft (7), the hollow rotating shaft (7) penetrates the filter plate (3) and is connected with the filter plate (3) through a bearing, the hollow rotating shaft (7) is provided with an anti-blocking mechanism (8), the shaft body lower segment of the hollow rotating shaft (7) is provided with a nozzle (9), the bottom of the hollow rotating shaft (7) is fixedly connected with a square block (10), the inner bottom of the cleaning tank (1) is fixedly connected with two supporting rods (11), the distal ends of the two supporting rods (11) are fixedly connected with a connecting seat (12), the inside of the connecting seat (12) is provided with an auxiliary shaft (13) through a bearing, the top of the auxiliary shaft (13) is clamped with the square block (10), and the shaft body of the auxiliary shaft (13) is fixedly connected with a stirring rod (14).
2. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 1, characterized in that: The bottom of the filter plate (3) is fixedly connected with a positioning pin (4), the positioning pin (4) penetrates the supporting ring (2) and is slidingly connected with the supporting ring (2).
3. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 1, characterized in that: The top of the cleaning tank (1) is fixedly connected with a discharge pipe (18), and the discharge pipe (18) is provided with a valve.
4. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 1, characterized in that: The sidewall of the cleaning tank (1) is fixedly connected with a gas feeding pipe (15), and the gas feeding pipe (15) penetrates the cleaning tank (1) and is provided, the distal end of the gas feeding pipe (15) is fixedly connected with a sealing sleeve (16), the sealing sleeve (16) is sleeved on the outer side of the hollow rotating shaft (7), the inner ring wall of the sealing sleeve (16) is embedded with two sealing rings (17), and the sealing rings (17) are in contact with the hollow rotating shaft (7).
5. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 1, characterized in that: The anti-blocking mechanism (8) comprises a connecting rod (81) fixedly connected to the hollow rotating shaft (7), the distal end of the connecting rod (81) is fixedly connected with a hollow shell (82), the inside of the hollow shell (82) is slidingly connected with a scraper (83), the scraper (83) is in contact with the filter plate (3), the filter plate (3) is fixedly connected with a protruding block (86), and the position of the protruding block (86) corresponds to the scraper (83).
6. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 5, characterized in that: The inner side of the hollow shell (82) is provided with a spring (84), one end of the spring (84) is fixedly connected with the scraper (83), and the other end of the spring (84) is fixedly connected to the inner surface of the hollow shell (82).
7. A multi-stage cleaning apparatus for manufactured sand surface treatment according to claim 5, characterized in that: The side edge of the scraper (83) is provided with a ball (85), and the ball (85) is in contact with the inner surface of the hollow shell (82).
Citation Information
Patent Citations
Sand washer for machine-made sand
CN217191136U