A sand washing device for sandstone processing and a method of using the same

Abstract

The application discloses a sand washing device for sandstone processing, which comprises two driven shafts, the driven shafts are sleeved on a rotating shaft, the driven shafts are rotationally matched with the rotating shaft, two driven shafts are connected through a conveying belt, the conveying belt is provided with chains on left and right side edges, the left and right ends of the driven shafts are sleeved with driven gears, the driven gears are fixedly connected with the driven shafts, the driven gears are engaged with the chains, the chains are further connected with a driving mechanism, and the driving mechanism is used for driving the chains to move; a water pipe is arranged above the conveying belt, the water pipe is connected with a water source, and a plurality of spray heads are arranged on the bottom of the water pipe; the sand washing device for sandstone processing is designed, a flow line operation mode is adopted, sandstone can be continuously cleaned, cleaning efficiency is effectively improved, and the speed of the conveying belt can be automatically adjusted according to the amount of sludge cleaned.

Description

Technical Field

[0001] This invention relates to the field of sand washing equipment, and more particularly to an apparatus for sand and gravel processing and its method of use. Background Technology

[0002] In the sand and gravel processing process, the sand and gravel need to be cleaned. The commonly used sand washing equipment is the wheel sand washing machine. For example, the patent application number 201921651617.4 discloses a spray sand washing machine, which includes a sand washing bucket, a rotating shaft rotatably connected to the sand washing bucket, a sand washing wheel sleeved on the outside of the rotating shaft and rotating synchronously with the rotating shaft, wheel blades evenly arranged on the sand washing wheel along the circumference, a support frame for supporting the sand washing wheel, and a motor for driving the rotating shaft to rotate. The sand washing bucket is provided with a feeding area and a discharging area along the direction of rotation of the sand washing wheel. A spray device is provided in the feeding area along the height direction. Two sand washing wheels are arranged coaxially at intervals. The wheel blades are located between the two sand washing wheels and are fixedly connected to the sand washing wheels. A screen plate for filtering water is provided between the two wheel blades. The sand and gravel are temporarily stored in a trough formed by two adjacent impellers and a screen plate. When passing through the spray pipe, the spray pipe sprays water into the trough through the nozzles to wash the sand and gravel a second time. Impurities in the sand and gravel are removed by the sieve plate under the flushing of water, which improves the sand washing effect.

[0003] Patent application number 202121812817.0 discloses a spray-type sand washing machine, including a sand washing tank. A fixing plate is fixedly connected to the front and rear positions of the top left side of the sand washing tank by screws. A first guide tube is integrally welded to the top right side of the fixing plate. A second guide tube is connected to the opposite side of the first guide tube. By setting the first guide tube, the second guide tube, the water outlet pipe and the nozzle, the sand and gravel in the impeller cavity are washed to avoid the residue of mud and dirt. The design of the fixing plate facilitates the disassembly and assembly of the first guide tube. A rotary motor drives the rotating rod to rotate. The rotating rod drives the driven wheel to rotate through the driving wheel. The driven wheel drives the shaft to rotate. The shaft drives the impeller to rotate through the disc and the connecting plate, tumbling the sand and gravel and scooping up some of the sand and gravel. By setting the above structure, it has the advantage of improving the spray washing effect and solves the problem of poor spray washing effect in existing sand washing devices, thereby improving the quality of manufactured sand.

[0004] Patent application number 202120444050.4 discloses a drum-type sand washing machine, which includes a sand washing hopper, a sand washing drum, a vibration device, and a spraying device. The sand washing drum has a multi-layer drum structure, and each layer of the drum has multiple sand washing troughs. The multiple sand washing troughs are arranged in a circular array along the axial center line of the sand washing drum. The bottom of the sand washing trough has a drain hole. The sand washing trough is used to load sand, the spraying device is used to spray the sand in the sand washing trough, and the drain hole is used to drain the sand. This application has a good separation effect between impurities and sand. The sand washing drum rotates and loads sand into the sand washing trough. The multi-layer drum structure of the sand washing drum can greatly improve the sand washing efficiency. The spraying device sprays the sand in the sand washing trough to wash away fine dirt, resulting in a good cleaning effect. The drain hole is used to quickly drain the sand, which greatly reduces the moisture content of the sand, avoids sand flow, and is beneficial for sand stacking.

[0005] However, the aforementioned sand washing devices and similar devices have low sand washing efficiency and cannot adjust the sand washing speed according to the degree of dirtiness of the sand and gravel, so improvements are needed. Summary of the Invention

[0006] The purpose of this invention is to provide a sand washing device for sand and gravel processing and its usage method to solve the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A sand washing device for sand and gravel processing includes two driven shafts, which are sleeved on a rotating shaft and rotatably engaged with it. The two driven shafts are connected by a conveyor belt, and chains are fixed to both sides of the conveyor belt. Driven gears are sleeved at both ends of the driven shafts, and the driven gears are fixed to the driven shafts and mesh with the chains. The chains are also connected to a drive mechanism for driving the chains to move. A water pipe is installed above the conveyor belt, and the water pipe is connected to a water source. Multiple spray heads are installed at the bottom of the water pipe.

[0008] Preferably, a limiting disc is provided on both the left and right sides of the driven shaft, the limiting disc is sleeved on the rotating shaft, and the limiting disc is fixedly connected to the rotating shaft.

[0009] Preferably, a first bracket is provided at both the left and right ends of the rotating shaft, the upper end of the first bracket is fixedly connected to the rotating shaft, and the lower end of the first bracket is fixedly connected to the ground.

[0010] Preferably, multiple hangers are provided above the water pipe, with the lower end of the hangers fixedly connected to the water pipe and the upper end of the hangers fixedly connected to the roof.

[0011] Preferably, the conveyor belt has several drainage holes.

[0012] Preferably, the drive mechanism includes a motor, a base is provided below the motor, the top of the base is fixedly connected to the motor, the bottom of the base is fixedly connected to the ground, the power output end of the motor is fixedly connected to the drive shaft, a drive gear is sleeved on one end of the drive shaft near the motor, the drive gear is fixedly connected to the drive shaft, and the drive gear meshes with a chain.

[0013] Preferably, the drive mechanism further includes a water tank, which is boat-shaped, and the conveyor belt surrounds the water tank. A mud discharge pipe is fixed at the bottom of the water tank. Several water inlet holes are opened on the side wall of the mud discharge pipe near the motor. A screw conveyor blade is fixed on the drive shaft. The screw conveyor blade and the drive shaft are both located inside the mud discharge pipe. A mud discharge cover is fixed at the end of the mud discharge pipe away from the motor. The mud discharge cover is funnel-shaped. Several seepage holes are opened at the bottom of the mud discharge pipe.

[0014] Preferably, a plurality of second supports are fixedly provided on the edge of the water tank, and the second supports are fixedly connected to the ground.

[0015] Preferably, a sludge collection bucket is provided below the sludge discharge hood.

[0016] The beneficial effects of this invention are: 1. This invention designs a sand washing device for sand and gravel processing, which adopts an assembly line operation method to continuously wash sand and gravel, effectively improving washing efficiency. Furthermore, the speed of the conveyor belt can be automatically adjusted according to the amount of sludge washed out. When there is more sludge on the sand and gravel, the speed of the conveyor belt slows down, allowing more time to wash the sand and gravel. When there is less sludge, the speed of the conveyor belt slows down, allowing for faster washing and improving washing efficiency.

[0017] 2. This invention designs a sand washing device for sand and gravel processing. By setting up a sludge collection bucket, the sludge washed out can be effectively collected, thereby avoiding secondary pollution from the sludge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a sand washing device for sand and gravel processing and its usage method according to the present invention. Figure 1 ; Figure 2 This invention relates to a sand washing device for sand and gravel processing and its method of use. Figure 1 Enlarged schematic diagram of part A; Figure 3 This invention relates to a sand washing device for sand and gravel processing and its method of use. Figure 1 Enlarged schematic diagram of part B; Figure 4 This invention relates to a sand washing device for sand and gravel processing and its method of use. Figure 1 Enlarged schematic diagram of part C; Figure 5 This invention relates to a sand washing device for sand and gravel processing and its method of use. Figure 1 Structural diagram Figure 2 .

[0019] Figure 6 This invention relates to a sand washing device for sand and gravel processing and its method of use. Figure 5 Enlarged schematic diagram of part D; Reference numerals in the attached diagram: 1. Hanging rod; 2. Water pipe; 3. Sprinkler head; 4. Conveyor belt; 5. First support; 6. Water tank; 7. Sludge discharge pipe; 8. Screwdriver blade; 9. Chain; 10. Driven shaft; 11. Limiting plate; 12. Driven gear; 13. Water inlet; 14. Second support; 15. Motor; 16. Drive gear; 17. Drive shaft; 18. Base; 19. Sludge discharge cover; 20. Sludge collection bucket; 21. Rotating shaft; 22. Drain hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1

[0023] like Figure 1-6As shown, a sand washing device for sand and gravel processing includes two driven shafts 10, which are sleeved on a rotating shaft 21. The driven shafts 10 and the rotating shaft 21 are rotatably engaged. The two driven shafts 10 are connected by a conveyor belt 4. Chains 9 are fixed on both sides of the conveyor belt 4. Driven gears 12 are sleeved on both ends of the driven shafts 10. The driven gears 12 are fixed to the driven shafts 10 and mesh with the chains 9. The chains 9 are also connected to a drive mechanism, which is used to drive the chains 9 to move. A water pipe 2 is installed above the conveyor belt 4. The water pipe 2 is connected to a water source. Multiple spray heads 3 are installed at the bottom of the water pipe 2.

[0024] The drive mechanism drives the chain 9 to move, and the chain 9 drives the conveyor belt 4 to rotate in a cycle. The length of the conveyor belt 4 can be set to 10 meters, 20 meters, or 30 meters as needed.

[0025] The sand and gravel to be cleaned are continuously fed onto the conveyor belt 4. When the sand and gravel move to the bottom of the spray head 3, they are cleaned by the water sprayed from the spray head 3. Example 2

[0026] like Figure 1-6 As shown, while all other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that: Limiting discs 11 are provided on both the left and right sides of the driven shaft 10, and the limiting discs 11 are sleeved on the rotating shaft 21, with the limiting discs 11 fixedly connected to the rotating shaft 21. First supports 5 are provided at both ends of the rotating shaft 21, with the upper end of the first support 5 fixedly connected to the rotating shaft 21 and the lower end of the first support 5 fixedly connected to the ground. Multiple hanging rods 1 are provided above the water pipe 2, with the lower end of the hanging rods 1 fixedly connected to the water pipe 2 and the upper end of the hanging rods 1 fixedly connected to the roof. Several drainage holes 22 are provided on the conveyor belt 4.

[0027] The drive mechanism includes a motor 15, with a base 18 below the motor 15. The top of the base 18 is fixed to the motor 15, and the bottom of the base 18 is fixed to the ground. The power output end of the motor 15 is fixed to a drive shaft 17. A drive gear 16 is fitted onto the end of the drive shaft 17 near the motor 15, and the drive gear 16 is fixed to the drive shaft 17 and meshes with a chain 9. The drive mechanism also includes a water tank 6, which is boat-shaped. A conveyor belt 4 surrounds the water tank 6. A sludge discharge pipe 7 is fixed to the bottom of the water tank 6. Several water inlet holes 13 are opened on the side wall of the sludge discharge pipe 7 near the motor 15. An auger blade 8 is fixed to the drive shaft 17. The auger blade 8 and the drive shaft 17 are both located inside the sludge discharge pipe 7. A sludge discharge cover 19 is fixed to the end of the sludge discharge pipe 7 away from the motor 15. The sludge discharge cover 19 is funnel-shaped, and several seepage holes are opened at the bottom of the sludge discharge pipe 7. Multiple second supports 14 are fixed to the edge of the water tank 6 and are fixed to the ground.

[0028] Motor 15 drives drive gear 16 to rotate, drive gear 16 drives chain 9 to rotate, and chain 9 drives conveyor belt 4 to rotate in a cycle.

[0029] When the sand and gravel are washed by the water sprayed from the spray head 3, the mud and sand in the sand and gravel are carried by the water to form mud water, which flows downward through the drain hole 22 on the conveyor belt 4 and then enters the water tank 6. It enters the mud discharge pipe 7 through the water inlet hole 13 on the mud discharge pipe 7. The water in the mud water that enters the mud discharge pipe 7 flows out through the seepage hole at the bottom of the mud discharge pipe 7, and the sludge is left in the mud discharge pipe 7.

[0030] When the motor 15 drives the drive gear 16 to rotate, it drives the drive shaft 17 and the auger blades 8 to rotate synchronously. The auger blades 8 drive the sludge in the sludge discharge pipe 7 to move towards the sludge discharge hood 19. Since the outlet of the funnel-shaped sludge discharge hood is much smaller than the sludge discharge pipe 7, the sludge accumulates on the side of the sludge discharge pipe 7 near the sludge discharge hood 19.

[0031] When the sand and gravel passing under the spray head 3 are dirty and have a lot of sludge, more sludge accumulates on the side of the sludge discharge pipe 7 near the sludge discharge hood 19, increasing the sludge density there. This restricts the rotation of the auger blades 8, slowing down their rotation. Consequently, the speed of the drive gear 16 decreases, which in turn slows down the speed of the chain 9 and the conveyor belt 4, increasing the time it takes for the sand and gravel to be cleaned by the spray head 3.

[0032] When the sand and gravel passing under the spray head 3 are relatively clean and have less sludge, less sludge accumulates on the side of the sludge discharge pipe 7 near the sludge discharge hood 19, reducing the sludge density there. This causes the auger blades 8 to rotate faster, which in turn causes the drive gear 16 to rotate faster, which in turn causes the chain 9 and conveyor belt 4 to rotate faster. This reduces the time it takes for the sand and gravel to be cleaned by the spray head 3, resulting in faster cleaning of the sand and gravel.

[0033] This invention automatically adjusts the rotation speed of the conveyor belt 4. When there is a lot of sludge on the sand and gravel, the rotation speed of the conveyor belt 4 slows down, allowing more time to clean the sand and gravel. When there is less sludge, the rotation speed of the conveyor belt 4 slows down, allowing for faster cleaning, thereby effectively improving cleaning efficiency and results. Example 3

[0034] like Figure 1-6 As shown, while all other parts are the same as in Embodiment 2, the difference between this embodiment and Embodiment 2 is that a sludge collection bucket 20 is provided below the sludge discharge hood 19. By providing the sludge collection bucket 20, the sludge discharged through the sludge discharge hood 19 can be collected.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A sand washing device for sand and gravel processing, characterized in that: It includes two driven shafts (10), which are sleeved on the rotating shaft (21). The driven shafts (10) and the rotating shaft (21) are rotatably engaged. The two driven shafts (10) are connected by a conveyor belt (4). Chains (9) are fixed on both sides of the conveyor belt (4). Driven gears (12) are sleeved on both ends of the driven shafts (10). The driven gears (12) are fixed to the driven shafts (10) and mesh with the chains (9). The chains (9) are also connected to a drive mechanism, which is used to drive the chains (9) to move. A water pipe (2) is installed above the conveyor belt (4), the water pipe (2) is connected to a water source, and multiple spray heads (3) are installed at the bottom of the water pipe (2). The conveyor belt (4) has several drainage holes (22); The drive mechanism includes a motor (15), a base (18) is provided below the motor (15), the top of the base (18) is fixedly connected to the motor (15), the bottom of the base (18) is fixedly connected to the ground, the power output end of the motor (15) is fixedly connected to the drive shaft (17), the end of the drive shaft (17) near the motor (15) is fitted with a drive gear (16), the drive gear (16) is fixedly connected to the drive shaft (17), and the drive gear (16) meshes with the chain (9); The drive mechanism also includes a water tank (6), which is boat-shaped. The conveyor belt (4) surrounds the water tank (6). A mud discharge pipe (7) is fixed at the bottom of the water tank (6). Several water inlet holes (13) are opened on the side wall of the mud discharge pipe (7) near the motor (15). A screw conveyor blade (8) is fixed on the drive shaft (17). The screw conveyor blade (8) and the drive shaft (17) are both located inside the mud discharge pipe (7). A mud discharge cover (19) is fixed at the end of the mud discharge pipe (7) away from the motor (15). The mud discharge cover (19) is funnel-shaped. Several seepage holes are opened at the bottom of the mud discharge pipe (7). When the sand and gravel are washed by the water sprayed from the spray head (3), the mud and sand in the sand and gravel are carried by the water to form mud water, which enters the water tank (6) through the drain hole (22) and then enters the mud discharge pipe (7) through the water inlet hole (13). The water in the mud water flows out through the seepage hole at the bottom of the mud discharge pipe (7), and the sludge is left in the mud discharge pipe (7). The motor (15) drives the auger blades (8) to rotate, and the auger blades (8) drive the sludge in the sludge discharge pipe (7) to move towards the sludge discharge hood (19). The sludge accumulates on the side of the sludge discharge pipe (7) close to the sludge discharge hood (19). When there is a lot of sludge in the sand and gravel, more sludge accumulates on the side of the sludge discharge pipe (7) near the sludge discharge hood (19), which increases the density of sludge in that area, thereby restricting the rotation of the auger blades (8), slowing down the rotation of the auger blades (8), which in turn slows down the rotation speed of the drive gear (16), which in turn slows down the rotation speed of the chain (9) and the conveyor belt (4), and increases the time for the sand and gravel to be cleaned by the spray head (3).

2. The sand washing device for sand and gravel processing according to claim 1, characterized in that: The driven shaft (10) is provided with a limiting disk (11) on both the left and right sides. The limiting disk (11) is sleeved on the rotating shaft (21) and the limiting disk (11) is fixedly connected to the rotating shaft (21).

3. A sand washing device for sand and gravel processing according to claim 2, characterized in that: The rotating shaft (21) is provided with a first bracket (5) at both the left and right ends. The upper end of the first bracket (5) is fixed to the rotating shaft (21), and the lower end of the first bracket (5) is fixed to the ground.

4. A sand washing device for sand and gravel processing according to claim 3, characterized in that: Multiple hangers (1) are installed above the water pipe (2). The lower end of the hanger (1) is fixed to the water pipe (2), and the upper end of the hanger (1) is fixed to the roof.

5. A sand washing device for sand and gravel processing according to claim 4, characterized in that: The edge of the water tank (6) is fixed with a plurality of second supports (14), and the second supports (14) are fixed to the ground.

6. A sand washing device for sand and gravel processing according to claim 5, characterized in that: A sludge collection bucket (20) is provided below the sludge discharge hood (19).

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