Efficient sand washing and dewatering all-in-one machine
By incorporating a sand-turning device under an outer cover and a double dewatering design, the problems of complex structure and easily damaged sealing devices in existing sand washing machines are solved, achieving efficient sand and gravel cleaning and dewatering and extending the service life of the equipment.
Patent Information
- Application Number
- CN202520024327.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing sand washing machines have complex structures and installations, their sealing devices are prone to damage, and their motors are susceptible to water ingress, making sand and gravel recycling difficult.
An external cover is used to house the sand-turning device, achieving an integrated structure. The sand-turning plate and the arc-shaped groove work together to perform double dehydration. Combined with an external geared motor drive, water ingress into the motor is prevented, simplifying the structure.
It achieves efficient cleaning and dehydration of sand and gravel, simplifies the installation process, reduces damage to sealing devices, and extends the service life of the equipment.
Smart Images

Figure CN223862008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ore processing equipment, and in particular to a high-efficiency integrated sand washing and dewatering machine. Background Technology
[0002] A sand washing machine, also known as a stone washing machine, is primarily used to remove impurities (such as dust) from sand products. Because it often uses water washing methods, it is called a sand washing machine. Sand washing machines are equipment for washing and selecting artificial sand (including natural sand). They are widely used in industries such as sand and gravel plants, mines, building materials, transportation, chemicals, water conservancy and hydropower, and concrete mixing plants for washing and selecting materials. However, most existing sand washing machines require manual removal of impurities, which is time-consuming and labor-intensive, and dewatering is troublesome, making sand and gravel recycling difficult, thus hindering widespread promotion and adoption.
[0003] According to the description in the sand washing and dewatering device disclosed on the patent website (authorization announcement number: CN220780739U), "A sand washing and dewatering device includes a sand washing tank, a rotatable turntable is arranged inside the sand washing tank, a fixed frame is installed on the top of the sand washing tank, a motor is installed on the fixed frame, a connecting rod is installed radially along the output shaft of the motor, the connecting rod is arranged radially along the turntable and connected to the turntable at both ends, a plurality of sand washing buckets are installed circumferentially on the outer wall of the turntable, a washing blade is arranged inside the sand washing bucket, the washing blade is connected to a rotating shaft, the rotating shaft is driven to rotate by a washing motor; the turntable includes an outer shell and an inner shell, the sand washing buckets are evenly embedded in the outer shell, the washing motor is arranged inside the outer shell, the inner shell is connected to the sand washing buckets and a sand washing net is installed at the connection, an impurity collection bucket is installed inside the inner shell; the bottom of the sand washing tank is connected to a dewatering chamber through a screw feeder."
[0004] Regarding the above description, the applicant believes the following issues exist:
[0005] In the process of using this utility model, since the turntable includes an outer shell and an inner shell, the sand washing buckets are evenly embedded in the outer shell, the cleaning motor is located inside the outer shell, and the inner shell is connected to the sand washing buckets, and a sand washing screen is installed at the connection. This structure requires the cleaning motor to be installed in the outer shell, which is complicated to install and also faces the problem of damage to the sealing device and water entering the motor. Therefore, it is necessary to improve the high-efficiency sand washing and dewatering integrated machine to solve the above problems. Utility Model Content
[0006] In order to overcome the complex installation of existing technologies, as well as the problems of damaged sealing devices and water ingress into the motor.
[0007] The technical solution of this utility model is as follows: a high-efficiency sand washing and dewatering integrated machine, including an outer cover, a sand turning device located inside the outer cover, the sand turning device including a sand turning frame, a sand turning wheel mounted inside the sand turning frame, a sand turning plate provided on the surface of the sand turning wheel along the axial direction, the sand turning plate being radially arranged along the axis of the sand turning wheel, the sand turning frame having an arc-shaped groove corresponding to the sand turning wheel, a feed inlet on the left side of the sand turning frame and a discharge outlet on the right side, the height of the feed inlet and the discharge outlet being lower than the height of the axis of the sand turning wheel, the number of sand turning devices inside the outer cover being two, the discharge outlet of the left sand turning device being connected to the feed inlet of the right sand turning device through a connecting plate, wherein the height of the feed inlet of the right sand turning device is lower than the discharge outlet of the left sand turning device.
[0008] Preferably, the sand-turning device is integrated into a single structure by covering it with an outer casing, reducing the amount of external dust entering the sand-turning device. The clean water inlet and wastewater outlet of the left sand-turning frame work simultaneously to achieve the effect of the sand-turning plate on the sand-turning wheel patting and cleaning the sand and gravel. Then, by utilizing the interaction of the arc-shaped groove that is almost in contact with the sand-turning plate, the sand and gravel in the arc-shaped groove are rotated onto the connecting plate by the rotation of the sand-turning plate. The water used to clean the sand and gravel will fall back into the arc-shaped groove to achieve the first dehydration. Then, by utilizing the slope of the connecting plate, the sand and gravel dehydrated in the first dehydration is slid to the right sand-turning frame, where the right sand-turning plate turns the sand and gravel for the second dehydration. Here, the clean water inlet of the right sand-turning frame does not add water, only the wastewater outlet discharges water to achieve the second dehydration. When the sand and gravel turn out from the discharge port of the right sand-turning frame, the cleaning and dehydration work is completed.
[0009] Preferably, a transmission rod is provided at the center of the sand-turning wheel shaft, and the transmission rod extends to the outside of the sand-turning frame. One side of the transmission rod is connected to a second gear, and a reduction motor is provided at the bottom of the connecting plate. The output end of the reduction motor is equipped with a first gear, and the first gear and the second gear are connected by a chain meshing. The reduction motor drives the second gears of the left and right sand-turning devices to realize the rotation of the sand-turning wheel for cleaning and dehydration.
[0010] Preferably, baffles are provided on both sides of the connecting plate, and the width between the baffles is equal to the height of the sand turning wheel. The fact that the width between the baffles is equal to the height of the sand turning wheel facilitates the transfer of sand and gravel from the connecting plate to the next process.
[0011] Preferably, the sand casting frame is provided with a clean water inlet and a sewage outlet that are connected to the arc-shaped groove. The clean water inlet is located above the sewage outlet. By setting the clean water inlet above the sewage outlet, it is convenient to discharge the sewage deposited in the arc-shaped groove.
[0012] Preferably, the sewage outlet is equipped with an iron mesh screen. The clean water inlet of the left sand-turning frame works simultaneously with the sewage outlet, while the clean water inlet of the right sand-turning frame does not work. The sand and gravel in the arc-shaped groove are isolated by the iron mesh screen at the sewage outlet and discharged together with the sewage. The clean water inlet of the right sand-turning frame does not work to facilitate dehydration.
[0013] Preferably, the outer cover includes a top cover with a funnel. The funnel includes a feed channel located above the sand-turning wheel of the left-side sand-turning device. The funnel-shaped design facilitates the pouring of sand and gravel into the device.
[0014] Preferably, a maintenance port is provided on the side of the outer casing near the geared motor. The maintenance port is connected to a maintenance door via a hinge. The maintenance door at the maintenance port facilitates maintenance and upkeep of the geared motor and chain by the staff, thus extending their service life.
[0015] The beneficial effects of this utility model are as follows: Compared with the complex structure and installation of existing sand washing and dewatering devices, which also face problems such as damage to the sealing device and water ingress into the motor, this utility model achieves an integrated structure by covering the sand-turning device with an outer casing, reducing the amount of external dust entering the sand-turning device. The clean water inlet and wastewater outlet of the sand-turning frame on the left side work simultaneously to enable the sand-turning plate on the sand-turning wheel to beat and clean the sand and gravel. Then, by utilizing the interaction of the arc-shaped groove that is almost in contact with the sand-turning plate, the sand and gravel in the arc-shaped groove are rotated to the connecting plate by the rotation of the sand-turning plate. The water used to clean the sand and gravel will fall back into the arc-shaped groove to achieve the first dewatering. Then, by using the slope of the connecting plate, the sand and gravel dewatered in the first dewatering is slid to the sand-turning frame on the right side, where the sand-turning plate on the right side turns the sand and gravel for the second dewatering. An external geared motor is used to prevent damage to the geared motor. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the position of the geared motor of this utility model;
[0018] Figure 3 This is a schematic diagram of the sand-turning wheel structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the arc-shaped groove structure of this utility model;
[0020] Figure 5 This is a schematic diagram showing the position of the connecting plate of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Outer cover; 11. Top cover; 12. Funnel; 121. Feed channel; 13. Maintenance port; 131. Maintenance door; 21. Chain; 221. Sand turning plate; 222. Sand turning frame; 2221. Arc groove; 2222. Clean water filling port; 2223. Sewage discharge port; 2224. Feed inlet; 2225. Discharge outlet; 223. Sand turning wheel; 23. Gear reducer motor; 231. Gear one; 232. Gear two; 31. Connecting plate; 32. Baffle. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figure 1 and Figure 2 The X-axis arrow points to the right, and the corresponding arrow points to the left; the Y-axis arrow points forward; and the Z-axis arrow points upward.
[0023] Please see Figures 1-5 This utility model provides an embodiment of a high-efficiency sand washing and dewatering integrated machine, including an outer cover 1 and a sand turning device located inside the outer cover 1. The sand turning device includes a sand turning frame 222, a sand turning wheel 223 is mounted inside the sand turning frame 222, and a sand turning plate 221 is provided on the surface of the sand turning wheel 223 along the axial direction. The sand turning plate 221 is radially arranged along the axis of the sand turning wheel 223. The sand turning frame 222 has an arc-shaped groove 2221 corresponding to the sand turning wheel 223. The left side of the sand turning frame 222 has a feed inlet 2224 and the right side has a discharge outlet 2225. The height of the feed inlet 2224 and the discharge outlet 2225 is lower than the height of the axis of the sand turning wheel 223. There are two sand turning devices inside the outer cover 1. The discharge outlet 2225 of the left sand turning device is connected to the feed inlet 2224 of the right sand turning device through a connecting plate 31. The height of the feed inlet 2224 of the right sand turning device is lower than the discharge outlet 2225 of the left sand turning device.
[0024] Please see Figures 1-4In this embodiment, the sand-turning device is integrated into a single structure by covering it with an outer casing 1, reducing the amount of external dust entering the sand-turning device. The clean water inlet 2222 and the wastewater outlet 2223 of the left sand-turning frame 222 work simultaneously to achieve the effect of the sand-turning plate 221 on the sand-turning wheel 223 patting and cleaning the sand and gravel. Then, by utilizing the interaction of the arc-shaped groove 2221 that is almost in contact with the sand-turning plate 221, the sand and gravel in the arc-shaped groove 2221 are rotated onto the connecting plate 31 by the rotation of the sand-turning plate 221. The water used to clean the sand and gravel will fall back into the arc-shaped groove 2221 to achieve the first dehydration. Then, by utilizing the slope of the connecting plate 31, the sand and gravel that have been dehydrated in the first step are slid into the right sand-turning frame 222, where the right sand-turning plate 221 turns the sand and gravel for the second dehydration. Here, the clean water inlet 2222 of the right sand-turning frame 222 does not add water, only the wastewater outlet 2223 drains water. The second dewatering is achieved when the sand and gravel are discharged from the outlet 2225 of the right-side sand-turning frame 222, completing the washing and dewatering process. A transmission rod is provided at the shaft of the sand-turning wheel 223, extending to the outside of the sand-turning frame 222. One side of the transmission rod is connected to a gear 232. A reduction motor 23 is located at the bottom of the connecting plate 31, and a gear 231 is provided at the output end of the reduction motor 23. The gear 231 and the gear 232 are connected by a chain 21. The reduction motor 23 drives the gear 232 of the two sand-turning devices on the left and right sides, realizing the rotation of the sand-turning wheel 223 for washing and dewatering. Baffles 32 are provided on both sides of the connecting plate 31. The width of the baffles 32 is equal to the height of the sand-turning wheel 223. The fact that the width of the baffles 32 is equal to the height of the sand-turning wheel 223 facilitates the transfer of sand and gravel from the connecting plate 31 to the next process.
[0025] Please see Figures 2-5In this embodiment, the sand casting frame 222 is provided with a clean water inlet 2222 and a sewage outlet 2223 communicating with the arc-shaped groove 2221. The clean water inlet 2222 is located above the sewage outlet 2223. By placing the clean water inlet 2222 above the sewage outlet 2223, it is convenient for the sewage deposited in the arc-shaped groove 2221 to be discharged. The sewage outlet 2223 is provided with an iron mesh. The clean water inlet 2222 and the sewage outlet 2223 of the left sand casting frame 222 work simultaneously, while the clean water inlet 2222 of the right sand casting frame 222 does not work. The iron mesh at the sewage outlet 2223 isolates the sewage in the arc-shaped groove 2221. The sand and gravel are discharged together with the sewage. The clean water filling port 2222 of the right-side sand-turning frame 222 is not in operation to facilitate dewatering. The outer cover 1 includes a top cover 11 with a funnel 12. The funnel 12 includes a feeding channel 121 located above the sand-turning wheel 223 of the left-side sand-turning device. The funnel 12 facilitates the pouring of sand and gravel into the equipment. The outer cover 1 has a maintenance port 13 on the side near the reduction motor 23. The maintenance port 13 is connected to a maintenance door 131 by a hinge. The maintenance door 131 at the maintenance port 13 facilitates the maintenance of the reduction motor 23 and the chain 21 by the staff, extending their service life.
[0026] During operation, unwashed sand and gravel are added through the feed channel 121 of the funnel 12. The sand and gravel pass above the turning wheel 223 of the left-side turning device. The reduction motor 23 rotates gear one 231, which drives gear two 232 to rotate the turning wheel 223 counterclockwise, turning the sand and gravel into the arc-shaped groove 2221. Clean water is sprayed out from the clean water inlet 2222 in the arc-shaped groove 2221 of the left-side turning device, and wastewater is discharged from the wastewater outlet 2223. The turning plate 221 turns and cleans the sand and gravel in the arc-shaped groove 2221. When the turning plate 221 turns the sand and gravel away from the water surface in the arc-shaped groove 2221, the operation is started. When dewatering begins, the sand and gravel are turned over to the discharge port 2225 near the connecting plate 31 on the left side of the sand-turning device. The sand and gravel will slide onto the connecting plate 31. Due to the slope of the connecting plate 31, the sand and gravel will slide into the sand-turning device on the right side. The sand-turning frame 222 of the right side sand-turning device will not inject clean water through the clean water inlet 2222, but will only drain water through the sewage outlet 2223. The right side sand-turning wheel 223 rotates counterclockwise, driving the sand and gravel inside to rotate for a second dewatering. When the sand and gravel of the right side sand-turning device rotates to the discharge port 2225 away from the connecting plate 31, the washing and dewatering work is completed.
[0027] Through the above steps, the sand-turning device is integrated into a single structure by covering it with an outer casing 1, reducing the amount of external dust entering the sand-turning device. The clean water inlet 2222 and the wastewater outlet 2223 of the sand-turning frame 222 on the left work simultaneously to achieve the effect of the sand-turning plate 221 on the sand-turning wheel 223 patting and cleaning the sand and gravel. Then, by utilizing the interaction of the arc-shaped groove 2221 that is almost in contact with the sand-turning plate 221, the sand and gravel in the arc-shaped groove 2221 are rotated onto the connecting plate 31 by the rotation of the sand-turning plate 221. The water used to clean the sand and gravel will fall back into the arc-shaped groove 2221 to achieve the first dehydration. Then, using the slope of the connecting plate 31, the sand and gravel that have been dewatered in the first step are slid into the right-side sand-turning frame 222. The right-side sand-turning plate 221 turns the sand and gravel over for a second dewatering. Here, the clean water inlet 2222 of the right-side sand-turning frame 222 does not add water, only the wastewater outlet 2223 discharges water to achieve the second dewatering. When the sand and gravel turn out from the discharge outlet 2225 of the right-side sand-turning frame 222, the washing and dewatering work is completed. This solves the problems of complex structure and installation of existing sand washing and dewatering devices, as well as the problems of damaged sealing devices and water entering the motor.
Claims
1. A high-efficiency sand washing and dewatering integrated machine, characterized in that: The device includes an outer casing (1) and a sand-turning device located inside the outer casing (1). The sand-turning device includes a sand-turning frame (222), a sand-turning wheel (223) is mounted inside the sand-turning frame (222), and sand-turning plates (221) are provided on the surface of the sand-turning wheel (223) along the axial direction. The sand-turning plates (221) are radially arranged along the axis of the sand-turning wheel (223). The sand-turning frame (222) has an arc-shaped groove (2221) corresponding to the sand-turning wheel (223). A feed inlet (222) is provided on the left side of the sand-turning frame (222). 4) A discharge port (2225) is provided on the right side. The height of the inlet (2224) and the discharge port (2225) is lower than the height of the sand turning wheel (223) shaft. There are two sand turning devices inside the outer cover (1). The discharge port (2225) of the left sand turning device is connected to the inlet (2224) of the right sand turning device through the connecting plate (31). The height of the inlet (2224) of the right sand turning device is lower than the discharge port (2225) of the left sand turning device.
2. The high-efficiency sand washing and dewatering integrated machine according to claim 1, characterized in that: A transmission rod is provided at the center of the sand-making wheel (223), and the transmission rod extends to the outside of the sand-making frame (222). One side of the transmission rod is connected to a gear two (232). A reduction motor (23) is provided at the bottom of the connecting plate (31). The output end of the reduction motor (23) is equipped with a gear one (231). The gear one (231) and the gear two (232) are connected by a chain (21).
3. The high-efficiency sand washing and dewatering integrated machine according to claim 2, characterized in that: The connecting plate (31) is provided with baffles (32) on both sides, and the width between the baffles (32) is equal to the height of the sand turning wheel (223).
4. The high-efficiency sand washing and dewatering integrated machine according to claim 1, characterized in that: The sand casting frame (222) is provided with a clean water inlet (2222) and a sewage outlet (2223) that are connected to the arc-shaped groove (2221). The clean water inlet (2222) is located above the sewage outlet (2223).
5. The high-efficiency sand washing and dewatering integrated machine according to claim 4, characterized in that: The sewage outlet (2223) is equipped with an iron mesh screen inside. The clean water filling port (2222) of the left sand-turning frame (222) works simultaneously with the sewage outlet (2223), while the clean water filling port (2222) of the right sand-turning frame (222) does not work.
6. The high-efficiency sand washing and dewatering integrated machine according to claim 1, characterized in that: The outer cover (1) includes a top cover (11) with a funnel (12) on it. The funnel (12) includes a feeding channel (121) located above the sand turning wheel (223) of the left sand turning device.
7. The high-efficiency sand washing and dewatering integrated machine according to claim 6, characterized in that: The outer cover (1) has a maintenance port (13) on the side near the geared motor (23), and the maintenance port (13) is connected to a maintenance door (131) by a hinge.
Citation Information
Patent Citations
Sand washing and dewatering device
CN220780739U