Water circulation treatment device for sand washer

Abstract

The invention relates to the technical field of water circulation treatment, and discloses a water circulation treatment device for a sand washer, the water circulation treatment device comprises a sand filtering barrel, the upper surface of the sand filtering barrel is fixedly connected with a water inlet pipe, the inner surfaces of the two ends of the sand filtering barrel are rotatably connected with a main shaft, and the left side surface of the inner wall of the sand filtering barrel is fixedly connected with an annular sleeve plate; the inner surface of the annular sleeve plate is sleeved with a rotary filter screen cylinder, and limiting rings are fixedly connected to the two sides of the circumferential surface of the main shaft, sewage flows out of meshes after passing through the rotary filter screen cylinder, and sand and mud are blocked by the rotary filter screen cylinder, so that the sand and mud in the sewage are quickly separated, the filtering efficiency is improved, and the sewage treatment efficiency is improved. A stirring plate stirs the sewage to be mixed with a flocculating agent, impurities in the sewage are collected, the filtering efficiency is further improved, inertia is generated when the rotary filter screen cylinder reciprocates, mud and sand deposited at the bottom of the rotary filter screen cylinder shake, mud and sand accumulation is prevented, and then the rotary filter screen cylinder is prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of water circulation treatment, and specifically to a water circulation treatment device for a sand washer. Background Art

[0002] In traditional sand washing operations, the problem of sedimentation of mud and sand seriously restricts production efficiency and resource utilization rate. The sand washing wastewater contains a large amount of suspended particles. After standing, the fine-grained mud and sand quickly settle, which not only causes siltation at the bottom of the circulation pipeline and the reservoir, leading to pipeline blockage, but also the existing water circulation systems mostly use simple sedimentation tanks for separation, resulting in incomplete sedimentation of mud and sand and repeated increase in water turbidity, leading to continuous deterioration of the quality of sand washing water and affecting the cleanliness of the finished sand.

[0003] The patent with the publication number CN212740969U discloses a water circulation treatment device for a sand washer. The patent includes multiple shells. The top of the shell is connected with a feeding pipe and a water inlet pipe. The other ends of the water inlet pipes on multiple shells are all connected with a main water inlet pipe. The inner top wall of the shell is rotatably connected with a rotating shaft. The rotating shaft is vertically arranged and is fixedly connected with multiple groups of stirring blades inside the shell. A partition plate is provided at the bottom end of the rotating shaft. By setting multiple shells, steps such as coagulation, sedimentation, water inlet, and drainage can be respectively carried out in different shells, which can not only greatly improve the efficiency of water treatment, so that the water treatment efficiency can meet the normal water consumption requirements of the sand washer, but also because different steps can be carried out simultaneously in different shells, avoiding the situation that a single coagulation and sedimentation device can only carry out one step at the same time, resulting in slow working efficiency. Although this patent solves the above problems, there is still a problem that when filtering a large amount of mud and sand at the same time, it is easy to cause sedimentation of mud and sand, affecting the sewage filtration and water circulation flow efficiency. Therefore, a water circulation treatment device for a sand washer is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a water circulation treatment device for a sand washer in view of the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A water circulation treatment device for a sand washer, including a sand filtering barrel, the upper surface of the sand filtering barrel is fixedly connected with a water inlet pipe, the inner surfaces at both ends of the sand filtering barrel are rotatably connected with a main shaft, the left side inner surface of the inner wall of the sand filtering barrel is fixedly connected with an annular sleeve plate, the inner surface of the annular sleeve plate is sleeved with a rotating filter screen cylinder, both sides of the circumferential surface of the main shaft are fixedly connected with limiting rings, a friction dredging device for dredging the rotating filter screen cylinder is arranged inside the sand filtering barrel, an impact slag filtering device for accelerating the precipitation of flocculants by impact is arranged inside the sand filtering barrel, the circumferential surface of the movable sleeve shaft is fixedly connected with a sliding sleeve, the circumferential surface of the sliding sleeve is fixedly connected with a support plate, the circumferential surface of the sliding sleeve is fixedly connected with a stirring plate, the left end of the main shaft is fixedly connected with a motor, and the motor is fixedly connected with the left side surface of the sand filtering barrel, the inner surfaces at both ends of the rotating filter screen cylinder are in contact with the circumferential surface of the main shaft, a reciprocating spiral groove is formed on the circumferential surface of the main shaft between the two limiting rings, and the reciprocating spiral groove is movably connected with the inner surface of the movable sleeve shaft, the end of the support plate away from the sliding sleeve is fixedly connected with the inner surface of the rotating filter screen cylinder, the sliding sleeve is sleeved on the circumferential surface of the limiting ring, pour the sewage after sand washing into the sand filtering barrel through the water inlet pipe, the sewage flows along the water inlet pipe into the annular sleeve plate, and then surges into the rotating filter screen cylinder from the annular sleeve plate, the sewage flows out from the mesh holes after passing through the rotating filter screen cylinder, while the sand, gravel and mud are blocked by the rotating filter screen cylinder, start the motor, the motor drives the main shaft to rotate, when the rotation speed of the main shaft is too fast, a large centrifugal force is generated, and then the movable sleeve shaft and the sliding sleeve are locked through the spiral groove, so that the movable sleeve shaft and the sliding sleeve rotate with the main shaft, the sliding sleeve drives the stirring plate to rotate, at this time, add flocculant into the sand filtering barrel through the water inlet pipe, the stirring plate stirs the sewage and the flocculant to be mixed, so that the impurities in the sewage are gathered, then slow down the rotation speed of the motor, at this time, the main shaft rotates slowly, the centrifugal force generated by the rotation of the main shaft is less than the friction force between the rotating filter screen cylinder and the annular sleeve plate, so that the movable sleeve shaft and the sliding sleeve can be driven to move left and right reciprocally through the spiral groove, the sliding sleeve drives the rotating filter screen cylinder to move left and right reciprocally through the support plate, and the inertia generated when the rotating filter screen cylinder moves reciprocally makes the sand and mud deposited at the bottom of the rotating filter screen cylinder shake.

[0006] Preferably, the friction dredging device includes an arc-shaped fixed seat, on the upper surface of which a dredging brush is fixedly connected. The lower surface of the sand filtering barrel is fixedly connected with an inner slag discharging pipe, and an electromagnetic valve I is fixedly connected to the inner surface of the inner slag discharging pipe. The friction dredging device further includes a contact plate, on the right side of which an elastic telescopic rod is fixedly connected. The lower surface of the inner wall of the sand filtering barrel is fixedly connected with a limiting plate, and a sliding rod is fixedly connected to the left side of the contact plate. An oscillating plate is fixedly connected to the circumferential surface of the sliding rod. The arc-shaped fixed seat is fixedly connected to the lower surface of the inner wall of the sand filtering barrel, and the contact plate is slidably connected to the lower surface of the inner wall of the sand filtering barrel. The elastic telescopic rod is fixedly connected to the right side of the inner wall of the sand filtering barrel. The front and rear sides of the limiting plate and the contact plate are in contact with each other. The front and rear sides of the limiting plate and the oscillating plate are in contact with each other. The sliding rod is in contact with the inner surface of the arc-shaped fixed seat. The oscillating plate is slidably connected to the lower surface of the inner wall of the sand filtering barrel. The dredging brush is in contact with the circumferential surface of the rotating filter screen cylinder. When the rotating filter screen cylinder moves left and right reciprocally, its lower surface contacts the dredging brush on the arc-shaped fixed seat and generates friction, thereby scraping off the mud and sand stuck in the mesh holes of the rotating filter screen cylinder. When the filtered water drains out of the sand filtering barrel, the electromagnetic valve II is started. At this time, part of the mud and sand and the accumulated liquid flow out of the sand filtering barrel through the outer slag discharging pipe. When the rotating filter screen cylinder moves to the right, it pushes the contact plate to move to the right and compresses the elastic telescopic rod. When the rotating filter screen cylinder moves to the left, the elastic telescopic rod drives the contact plate to slide leftward and reset between the limiting plates, so that the contact plate reciprocally moves, and generates vibration under the influence of the elasticity of the elastic telescopic rod. When the contact plate reciprocally moves, it drives the sliding rod to slide left and right reciprocally in the arc-shaped fixed seat, and the sliding rod drives the oscillating plate to reciprocally slide and collide with the arc-shaped fixed seat. After the arc-shaped fixed seat is impacted, the dredging brush is affected and generates vibration, thereby quickly shaking off the mud and sand stuck between the dredging brushes.

[0007] Preferably, the impact slag filtering device includes a liquid delivery pipe. The right end of the liquid delivery pipe is fixedly connected to a water outlet filtering tank. The right side surface of the inner wall of the water outlet filtering tank is fixedly connected to a partition plate. The lower surface of the water outlet filtering tank is fixedly connected to an external slag discharge pipe. The inner surface of the external slag discharge pipe is fixedly connected to a solenoid valve II. The lower surface of the external slag discharge pipe is fixedly connected to a butt joint pipe. The impact slag filtering device further includes an impact mesh plate. The front and rear sides of the inner wall of the water outlet filtering tank are fixedly connected to side connecting plates. The lower surface of the partition plate is fixedly connected to an adsorption mesh. The right side surface of the contact plate is fixedly connected to a push rod. The inner surface of the liquid delivery pipe is fixedly connected to a support shaft. The right side surfaces of the liquid delivery pipe and the sand filtering barrel are fixedly connected. The impact mesh plate is slidably connected to the inner surface of the water outlet filtering tank. The impact mesh plate and the upper surface of the partition plate are in contact with each other. A spring is arranged between the left side surface of the impact mesh plate and the right side surface of the side connecting plate. The front and rear sides of the upper surfaces of the side connecting plate and the partition plate are fixedly connected. The adsorption mesh is fixedly connected to the inner surface of the water outlet filtering tank. Bentonite for adsorbing flocculants is arranged between the right side of the adsorption mesh and the water outlet filtering tank. The push rod is slidably connected to the inner surface of the support shaft. The right end of the push rod is in contact with the left side surface of the impact mesh plate. The sewage separated from the sand and mud flows from the sand filtering barrel into the liquid delivery pipe. The water flow is compressed by the liquid delivery pipe to generate a certain pressure and impact force, and then rushes into the water outlet filtering tank. During the impact process, part of the water flow flows out of the water outlet filtering tank through the impact mesh plate, while the sewage with flocculants tumbles and falls to the bottom of the water outlet filtering tank after hitting the impact mesh plate. The flocculants falling to the bottom of the water outlet filtering tank are adsorbed by the bentonite on the right side of the adsorption mesh and then deposited downward. When most of the water flows out of the water outlet filtering tank after filtration, the solenoid valve II is opened, and the accumulated water and flocculants flow into the external slag discharge pipe and then flow out through the butt joint pipe. When the impact of the water flow decreases, the oscillating plate moves left and right reciprocally, driving the push rod to slide left and right reciprocally in the support shaft and squeezing the impact mesh plate to move rightward. After the push rod moves away from the impact mesh plate, the spring drives the impact mesh plate to reset, so that after the impact force of the water flow decreases, the impact mesh plate keeps moving reciprocally and pushes the flocculants adhering to the periphery of the partition plate into the bottom of the water outlet filtering tank.

[0008] Adopting the above technical solution, the present invention can bring the following beneficial effects: 1. For the water circulation treatment device of the sand washer, the sewage flows out from the mesh holes after passing through the rotating filter screen cylinder, while the sand, gravel and mud are blocked by the rotating filter screen cylinder, so that the sand, gravel and soil in the sewage are quickly separated, improving the filtration efficiency. The stirring plate stirs the sewage and the flocculant to mix, causing the impurities in the sewage to gather, further improving the filtration efficiency. When the rotating filter screen cylinder moves reciprocally, inertia is generated to make the sand and mud deposited at the bottom of the rotating filter screen cylinder shake, preventing the sand and mud from accumulating, and thus avoiding the blockage of the rotating filter screen cylinder and improving the filtration effect of the device.

[0009] 2. For the water circulation treatment device of this sand washer, when the rotating filter screen cylinder moves left and right reciprocally, its lower surface contacts and rubs against the dredging brush on the arc-shaped fixed seat, thereby scraping off the sediment stuck in the mesh holes of the rotating filter screen cylinder, preventing the mesh holes of the rotating filter screen cylinder from being blocked by sediment and causing unsmooth sewage filtration, and further improving the filtration effect.

[0010] 3. For the water circulation treatment device of this sand washer, when the arc-shaped fixed seat is impacted, the dredging brush is affected and vibrates, and then quickly shakes off the sediment stuck between the dredging brushes, preventing the dredging brushes from being stuck by sediment, and thus being able to effectively clean the surface of the rotating filter screen cylinder for a long time, and further improving the dredging and cleaning effect.

[0011] 4. For the water circulation treatment device of this sand washer, during the impact process, part of the water flow flows out of the water outlet filter tank through the impact mesh plate, and the sewage with flocculants tumbles and falls to the bottom of the water outlet filter tank after hitting the impact mesh plate. The flocculants falling to the bottom of the water outlet filter tank are adsorbed by the bentonite on the right side of the adsorption mesh and then deposited downward, preventing the flocculants from floating upward again.

[0012] 5. For the water circulation treatment device of this sand washer, the oscillating plate moves left and right reciprocally, driving the push rod to slide left and right reciprocally in the support shaft, and squeezing the impact mesh plate to move to the right. After the push rod moves away from the impact mesh plate, the spring drives the impact mesh plate to reset, so that after the water flow impact force decreases, the impact mesh plate keeps moving reciprocally and pushes the flocculants adhering to the periphery of the partition plate into the bottom of the water outlet filter tank, further improving the filtration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention; Figure 2 is the front-side three-dimensional semi-sectional structure schematic diagram of the filter sand barrel of the present invention; Figure 3 is of the present invention Figure 2 the enlarged structure schematic diagram of A in; Figure 4 is the front-side three-dimensional semi-sectional structure schematic diagram of the friction dredging device of the present invention; Figure 5 is of the present invention Figure 4 the enlarged structure schematic diagram of B in; Figure 6 is the front-side three-dimensional semi-sectional structure schematic diagram of the impact filter residue device of the present invention; Figure 7 is of the present invention Figure 6 the enlarged structure schematic diagram of C in.

[0014] In the figure: 1. Sand filtering barrel; 2. Water inlet pipe; 3. Main shaft; 4. Annular sleeve plate; 5. Rotating filter screen cylinder; 6. Limit ring; 7. Movable sleeve shaft; 8. Frictional dredging device; 9. Impact filter residue device; 10. Sliding sleeve; 11. Support plate; 12. Stirring plate; 81. Arc-shaped fixed seat; 82. Dredging brush; 83. Inner slag discharge pipe; 84. Solenoid valve 1; 85. Contact plate; 86. Elastic telescopic rod; 87. Limit plate; 88. Slide bar; 89. Oscillation plate; 91. Liquid delivery pipe; 92. Water outlet filter tank; 93. Partition board; 94. Outer slag discharge pipe; 95. Solenoid valve 2; 96. Docking pipe; 97. Impact net plate; 98. Side connection plate; 99. Adsorption net; 910. Push rod; 911. Support shaft. Detailed implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 - 7, an embodiment of the present invention is: a water circulation treatment device for a sand washer, including a sand filtering bucket 1. The upper surface of the sand filtering bucket 1 is fixedly connected with a water inlet pipe 2. The inner surfaces at both ends of the sand filtering bucket 1 are rotatably connected with a main shaft 3. The left side inner surface of the inner wall of the sand filtering bucket 1 is fixedly connected with an annular sleeve plate 4. The inner surface of the annular sleeve plate 4 is sleeved with a rotating filter screen cylinder 5. Both sides of the circumferential surface of the main shaft 3 are fixedly connected with limiting rings 6. Inside the sand filtering bucket 1, there is a friction dredging device 8 for dredging the rotating filter screen cylinder 5. Inside the sand filtering bucket 1, there is an impact slag filtering device 9 for accelerating the precipitation of flocculants through impact. After the sewage passes through the rotating filter screen cylinder 5, it flows out from the mesh holes, while the sand, gravel, and mud are blocked by the rotating filter screen cylinder 5, thereby quickly separating the sand, gravel, and soil in the sewage and improving the filtering efficiency. The stirring plate 12 stirs the mixture of sewage and flocculant, causing the impurities in the sewage to gather and further improving the filtering efficiency. The circumferential surface of the movable sleeve shaft 7 is fixedly connected with a sliding sleeve 10. The circumferential surface of the sliding sleeve 10 is fixedly connected with a support plate 11. The circumferential surface of the sliding sleeve 10 is fixedly connected with a stirring plate 12. The left end of the main shaft 3 is fixedly connected with a motor, and the motor is fixedly connected with the left side surface of the sand filtering bucket 1. The inner surfaces at both ends of the rotating filter screen cylinder 5 are in contact with the circumferential surface of the main shaft 3. The circumferential surface of the main shaft 3 between the two limiting rings 6 is provided with a reciprocating spiral groove, and the reciprocating spiral groove is movably connected with the inner surface of the movable sleeve shaft 7. One end of the support plate 11 away from the sliding sleeve 10 is fixedly connected with the inner surface of the rotating filter screen cylinder 5. The sliding sleeve 10 is sleeved on the circumferential surface of the limiting ring 6. When the rotating filter screen cylinder 5 reciprocates, inertia is generated to make the sediment at the bottom of the rotating filter screen cylinder 5 shake, preventing the sediment from accumulating and thus avoiding the blockage of the rotating filter screen cylinder 5 and improving the filtering effect of the device.

[0017] Working principle: Pour the sewage after sand washing into the sand filtering bucket 1 through the water inlet pipe 2. The sewage flows along the water inlet pipe 2 into the annular sleeve plate 4, and then surges into the rotating filter screen cylinder 5 from the annular sleeve plate 4. After passing through the rotating filter screen cylinder 5, the sewage flows out from the mesh holes, while the sand, gravel and mud are blocked by the rotating filter screen cylinder 5, thus quickly separating the sand, gravel and soil in the sewage, improving the filtering efficiency. Start the motor, and the motor drives the main shaft 3 to rotate. When the rotation speed of the main shaft 3 is too fast, a large centrifugal force is generated, and then the moving sleeve shaft 7 and the sliding sleeve 10 are locked through the spiral groove, so that the moving sleeve shaft 7 and the sliding sleeve 10 rotate with the main shaft 3. The sliding sleeve 10 drives the stirring plate 12 to rotate. At this time, add a flocculant into the sand filtering bucket 1 through the water inlet pipe 2, and the stirring plate 12 stirs the sewage and the flocculant to be mixed, so that the impurities in the sewage are gathered, further improving the filtering efficiency. Then slow down the rotation speed of the motor. At this time, the main shaft 3 rotates slowly, and the centrifugal force generated by the rotation of the main shaft 3 is less than the friction force between the rotating filter screen cylinder 5 and the annular sleeve plate 4, so that the moving sleeve shaft 7 and the sliding sleeve 10 can be driven to move left and right reciprocally through the spiral groove. The sliding sleeve 10 drives the rotating filter screen cylinder 5 to move left and right reciprocally through the support plate 11. When the rotating filter screen cylinder 5 moves reciprocally, inertia is generated to make the sediment at the bottom of the rotating filter screen cylinder 5 shake, preventing the sediment from accumulating, and thus avoiding the blockage of the rotating filter screen cylinder 5, improving the filtering effect of the device.

[0018] Please refer to Figures 1 - 7, on the basis of the above embodiments, in another embodiment of the present invention, the friction dredging device 8 includes an arc-shaped fixed seat 81. A dredging brush 82 is fixedly connected to the upper surface of the arc-shaped fixed seat 81. An inner slag discharge pipe 83 is fixedly connected to the lower surface of the sand filtering barrel 1. A solenoid valve 84 is fixedly connected to the inner surface of the inner slag discharge pipe 83. When the rotary filter screen cylinder 5 moves left and right reciprocally, its lower surface contacts the dredging brush 82 on the arc-shaped fixed seat 81 and generates friction, thereby scraping off the mud and sand stuck in the mesh holes of the rotary filter screen cylinder 5, preventing the mesh holes of the rotary filter screen cylinder 5 from being blocked by mud and sand and causing the sewage filtration to be unsmooth, and further improving the filtration effect. The friction dredging device 8 further includes a contact plate 85. An elastic telescopic rod 86 is fixedly connected to the right side surface of the contact plate 85. A limiting plate 87 is fixedly connected to the lower surface of the inner wall of the sand filtering barrel 1. A sliding rod 88 is fixedly connected to the left side surface of the contact plate 85. An oscillating plate 89 is fixedly connected to the circumferential surface of the sliding rod 88. The arc-shaped fixed seat 81 is fixedly connected to the lower surface of the inner wall of the sand filtering barrel 1. The contact plate 85 is slidably connected to the lower surface of the inner wall of the sand filtering barrel 1. The elastic telescopic rod 86 is fixedly connected to the right side surface of the inner wall of the sand filtering barrel 1. The front and rear sides of the limiting plate 87 and the contact plate 85 are in contact with each other. The front and rear sides of the limiting plate 87 and the oscillating plate 89 are in contact with each other. The sliding rod 88 is in contact with the inner surface of the arc-shaped fixed seat 81. The oscillating plate 89 is slidably connected to the lower surface of the inner wall of the sand filtering barrel 1. The dredging brush 82 is in contact with the circumferential surface of the rotary filter screen cylinder 5. After the arc-shaped fixed seat 81 is impacted, the dredging brush 82 is affected and vibrates, and then quickly shakes off the mud and sand stuck between the dredging brushes 82, preventing the dredging brushes 82 from being stuck by mud and sand, and thus being able to effectively clean the surface of the rotary filter screen cylinder 5 for a long time, and further improving the dredging and cleaning effect.

[0019] Working principle: When the rotary filter cylinder 5 moves reciprocally left and right, its lower surface contacts and rubs against the dredging brush 82 on the arc-shaped fixed seat 81, thereby scraping off the sediment stuck in the mesh holes of the rotary filter cylinder 5, preventing the mesh holes of the rotary filter cylinder 5 from being blocked by sediment and causing unsmooth sewage filtration, and further improving the filtration effect. After the filtered water drains out of the filter sand bucket 1, the second solenoid valve 95 is activated. At this time, part of the sediment and accumulated liquid flow out of the filter sand bucket 1 through the external slag discharge pipe 94. When the rotary filter cylinder 5 moves to the right, it pushes the contact plate 85 to move to the right and squeezes the elastic telescopic rod 86. When the rotary filter cylinder 5 moves to the left, the elastic telescopic rod 86 drives the contact plate 85 to slide leftward and reset between the limit plates 87, so that the contact plate 85 moves reciprocally, and vibrates due to the elasticity of the elastic telescopic rod 86. When the contact plate 85 moves reciprocally, it drives the sliding rod 88 to slide reciprocally left and right in the arc-shaped fixed seat 81, and the sliding rod 88 drives the oscillating plate 89 to slide reciprocally and collide with the arc-shaped fixed seat 81. After the arc-shaped fixed seat 81 is impacted, the dredging brush 82 is affected and vibrates, and then quickly shakes off the sediment stuck between the dredging brushes 82, preventing the dredging brushes 82 from being stuck by sediment, and thus being able to effectively clean the surface of the rotary filter cylinder 5 for a long time, and further improving the dredging and cleaning effect.

[0020] Please refer to Figures 1 - 7On the basis of the above embodiment, in another embodiment of the present invention, the impact filter residue device 9 includes a liquid infusion pipe 91, the right end of the liquid infusion pipe 91 is fixedly connected to a water outlet filter box 92, the right side of the inner wall of the water outlet filter box 92 is fixedly connected to a partition plate 93, the lower surface of the water outlet filter box 92 is fixedly connected to an external residue discharge pipe 94, the inner surface of the external residue discharge pipe 94 is fixedly connected to a solenoid valve 95, and the lower surface of the external residue discharge pipe 94 is fixedly connected to a butt joint pipe 96. During the impact process, part of the water flows out of the water outlet filter box 92 through the impact mesh plate 97. The sewage with flocculants hits the impact screen plate 97 and then tumbles and falls into the bottom of the outlet filter box 92. The flocculants falling into the bottom of the outlet filter box 92 are adsorbed by the bentonite on the right side of the adsorption net 99 and then deposited downward, preventing the flocculants from floating upward again. The impact filter residue device 9 also includes an impact screen plate 97, and the front and rear sides of the inner wall of the outlet filter box 92 are fixedly connected to side connecting plates 98, the lower surface of the partition plate 93 is fixedly connected to the adsorption net 99, the right side of the contact plate 85 is fixedly connected to the push rod 910, and the inner surface of the infusion tube 91 is fixedly connected There is a support shaft 911, the infusion tube 91 is fixedly connected to the right side of the filter sand bucket 1, the impact mesh plate 97 is slidably connected to the inner surface of the water outlet filter box 92, the impact mesh plate 97 and the upper surface of the partition plate 93 are in contact with each other, a spring is arranged between the right side of the impact mesh plate 97 and the left side of the side connecting plate 98, the side connecting plate 98 and the upper surface of the partition plate 93 are fixedly connected at the front and rear sides, the adsorption net 99 is fixedly connected to the inner surface of the water outlet filter box 92, bentonite for adsorbing flocculants is arranged between the right side of the adsorption net 99 and the water outlet filter box 92, and the push rod 910 It is slidably connected to the inner surface of the support shaft 911, and the right end of the push rod 910 is in contact with the left side of the impact screen plate 97. The oscillation plate 89 reciprocates left and right to drive the push rod 910 to slide back and forth inside the support shaft 911, and squeeze the impact screen plate 97 to move to the right. After the push rod 910 moves away from the impact screen plate 97, the spring drives the impact screen plate 97 to reset, so that after the impact force of the water flow is reduced, the impact screen plate 97 keeps reciprocating and pushes the flocculants adhering to the periphery of the partition 93 into the bottom of the outlet filter box 92, further improving the filtration quality.

[0021] Working principle: The sewage from which sediment has been separated flows from the sand filter bucket 1 into the liquid delivery pipe 91. The water flow is compressed by the liquid delivery pipe 91 to generate a certain pressure and impact force, and thus rushes into the water outlet filter box 92. During the impact process, part of the water flow flows out of the water outlet filter box 92 through the impact screen plate 97, while the sewage with flocculants tumbles and falls to the bottom of the water outlet filter box 92 after hitting the impact screen plate 97. The flocculants that fall to the bottom of the water outlet filter box 92 are adsorbed by the bentonite on the right side of the adsorption net 99 and then deposited downward, preventing the flocculants from floating upward again. When most of the water flows out of the water outlet filter box 92 after filtration, the solenoid valve II 95 is opened, and the accumulated water and flocculants flow into the external slag discharge pipe 94 and then flow out through the docking pipe 96. After the water flow impact decreases, the oscillation plate 89 reciprocates left and right, driving the push rod 910 to slide left and right in the support shaft 911, and squeezing the impact screen plate 97 to move to the right. After the push rod 910 moves away from the impact screen plate 97, the spring drives the impact screen plate 97 to reset, so that after the water flow impact force decreases, the impact screen plate 97 keeps reciprocating and pushes the flocculants adhering to the periphery of the partition plate 93 into the bottom of the water outlet filter box 92, further improving the filtration quality.

[0022] The present invention provides a water circulation treatment device for a sand washer. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the prior art.

Claims

1. A water circulation treatment device for a sand washer, comprising a sand filtering barrel (1), characterized in that: The upper surface of the sand filter barrel (1) is fixedly connected to a water inlet pipe (2), the inner surfaces of both ends of the sand filter barrel (1) are rotatably connected to a main shaft (3), the left side of the inner wall of the sand filter barrel (1) is fixedly connected to an annular sleeve plate (4), the inner surface of the annular sleeve plate (4) is sleeved with a rotating filter screen cylinder (5), the circumferential surface of the main shaft (3) is fixedly connected to limiting rings (6), the interior of the sand filter barrel (1) is provided with a friction dredging device (8) for dredging the rotating filter screen cylinder (5), the interior of the sand filter barrel (1) is provided with an impact filter residue device (9) for accelerating the sedimentation of flocculants by impact, the circumferential surface of the movable sleeve shaft (7) is fixedly connected to a sliding sleeve (10), the circumferential surface of the sliding sleeve (10) is fixedly connected to a support plate (11), and the circumferential surface of the sliding sleeve (10) is fixedly connected to an agitating plate (12).

2. The water circulation treatment device for a sand washer according to claim 1, characterized in that: The left end of the main shaft (3) is fixedly connected to a motor, and the motor is fixedly connected to the left side of the sand filter barrel (1). The inner surfaces of both ends of the rotating filter cylinder (5) and the circumferential surface of the main shaft (3) are in contact with each other. The circumferential surface of the main shaft (3) located between the two limiting rings (6) is provided with a reciprocating spiral groove, and the reciprocating spiral groove and the inner surface of the movable sleeve (7) are movably connected. The end of the support plate (11) away from the sliding sleeve (10) is fixedly connected to the inner surface of the rotating filter cylinder (5), and the sliding sleeve (10) and the limiting ring (6) are sleeved on the circumferential surface.

3. The water circulation treatment device for a sand washer according to claim 2, wherein: The friction dredging device (8) comprises an arc-shaped fixed seat (81), the upper surface of the arc-shaped fixed seat (81) is fixedly connected to a dredging brush (82), the lower surface of the sand filter barrel (1) is fixedly connected to an inner slag discharge pipe (83), and the inner surface of the inner slag discharge pipe (83) is fixedly connected to an electromagnetic valve 1 (84).

4. The water circulation treatment device for a sand washer according to claim 3, characterized in that: The friction dredging device (8) further comprises a resistance plate (85), the right side surface of the resistance plate (85) being fixedly connected to an elastic telescopic rod (86), the lower surface of the inner wall of the sand filter barrel (1) being fixedly connected to a limiting plate (87), the left side surface of the resistance plate (85) being fixedly connected to a sliding rod (88), and the circumferential surface of the sliding rod (88) being fixedly connected to an oscillating plate (89).

5. The water circulation treatment device for a sand washer according to claim 4, characterized in that: The arc-shaped fixed seat (81) is fixedly connected to the lower surface of the inner wall of the sand filter barrel (1), the contact plate (85) is slidably connected to the lower surface of the inner wall of the sand filter barrel (1), the elastic telescopic rod (86) is fixedly connected to the right side of the inner wall of the sand filter barrel (1), the limit plate (87) and the contact plate (85) are in contact with each other at the front and rear sides, the limit plate (87) and the oscillation plate (89) are in contact with each other at the front and rear sides, the sliding rod (88) and the inner surface of the arc-shaped fixed seat (81) are in contact with each other, the oscillation plate (89) and the lower surface of the inner wall of the sand filter barrel (1) are slidably connected, and the dredging brush (82) and the circumferential surface of the rotating filter screen cylinder (5) are in contact with each other.

6. The water circulation treatment device for a sand washer according to claim 5, wherein: The impact slag filtering device (9) includes an infusion pipe (91). The right end of the infusion pipe (91) is fixedly connected to a water outlet filter box (92). The right side surface of the inner wall of the water outlet filter box (92) is fixedly connected to a partition plate (93). The lower surface of the water outlet filter box (92) is fixedly connected to an outer slag discharge pipe (94). The inner surface of the outer slag discharge pipe (94) is fixedly connected to a solenoid valve II (95). The lower surface of the outer slag discharge pipe (94) is fixedly connected to a docking pipe (96).

7. The water circulation treatment device for a sand washer according to claim 6, wherein: The impact slag filtering device (9) further includes an impact mesh plate (97). The front and rear sides of the inner wall of the water outlet filter box (92) are fixedly connected to side connection plates (98). The lower surface of the partition plate (93) is fixedly connected to an adsorption mesh (99). The right side surface of the contact plate (85) is fixedly connected to a push rod (910). The inner surface of the infusion pipe (91) is fixedly connected to a support shaft (911).

8. The water circulation treatment device for a sand washer according to claim 7, wherein: The infusion pipe (91) is fixedly connected to the right side surface of the filter sand bucket (1). The impact mesh plate (97) is slidably connected to the inner surface of the water outlet filter box (92). The upper surfaces of the impact mesh plate (97) and the partition plate (93) are in contact with each other. A spring is arranged between the left side surface of the impact mesh plate (97) and the right side surface of the side connection plate (98). The front and rear sides of the upper surfaces of the side connection plate (98) and the partition plate (93) are fixedly connected. The adsorption mesh (99) is fixedly connected to the inner surface of the water outlet filter box (92). Bentonite for adsorbing flocculants is arranged between the right side of the adsorption mesh (99) and the water outlet filter box (92). The push rod (910) is slidably connected to the inner surface of the support shaft (911). The right end of the push rod (910) is in contact with the left side surface of the impact mesh plate (97).

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