Filtering sedimentation tank surface cleaning device and cleaning method thereof

Abstract

The application provides a filtering sedimentation tank surface floating object cleaning device and a cleaning method thereof. The bottom of a slag collecting cylinder is an open structure, the top of the slag collecting cylinder is a closed structure, one side of the slag collecting cylinder is provided with a slag collecting opening, the slag collecting opening is connected with a slag collecting hopper, a propeller is arranged in the slag collecting cylinder, a driving motor is arranged on the top of the slag collecting cylinder, the driving motor is connected with the propeller, a slag collecting net is sleeved on the opening below the slag collecting cylinder, and the one side of the slag collecting cylinder is arranged on a floating slag baffle. The separating device walks with the aid of the floating slag baffle, and the floating objects on the surface of the tank are collected through the slag collecting hopper. Under the action of the upward pushing force generated by the high-speed rotation of the propeller, the pressure of the upper part of the slag collecting cylinder rapidly decreases, the slag-water mixture of the slag collecting hopper is sucked into the slag collecting cylinder from the slag collecting opening under the action of the atmospheric pressure, and is pushed into the slag collecting net. Water is squeezed out from the mesh, and the sludge stays in the net and is cleaned during the patrol and maintenance.

Description

Technical Field

[0001] This invention relates to the field of pool surface cleaning, and in particular to a device and method for cleaning the surface of a filtration sedimentation tank. Background Technology

[0002] Existing scum collection systems in secondary sedimentation tanks mainly consist of scum baffles, scum hoppers, and scum pipes. By rotating the scum baffles, floating debris is pushed to the top of the scum hopper and then discharged out of the tank through the scum pipe connected to the hopper. However, this system has several drawbacks: after long-term operation in wastewater treatment plants, the efficiency of scum and oil removal in the upstream facilities decreases, resulting in excessive scum and sludge in the secondary sedimentation tank. The scum and sludge follow the rotation of the scum baffles, making it difficult or only partially collected into the scum hopper, resulting in a large amount of scum and sludge remaining on the surface for extended periods. Manual removal is difficult and visually unappealing. Some plants use devices consisting of spray structures and pressurized water systems to simulate "artificial rain" to disperse and settle the scum and sludge on the surface, thus aiding in collection. However, this only disperses the scum and sludge; when the amount is too large, problems arise such as re-floating, incomplete collection, and impact on effluent quality, failing to achieve the desired effect. Summary of the Invention

[0003] The main objective of this invention is to provide a surface cleaning device and cleaning method for a filtration sedimentation tank, which solves the problems of excessive scum and mud causing them to float again, incomplete collection, and affecting the quality of the effluent, thus failing to achieve the desired effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a surface cleaning device for a filtration sedimentation tank, wherein the bottom of the slag collection cylinder is an open structure and the top is a closed structure, a slag collection port is provided on one side of the slag collection cylinder and the slag collection port is connected to the slag collection hopper, a propeller is provided inside the slag collection cylinder, a drive motor is provided at the top of the slag collection cylinder and the drive motor is connected to the propeller, a slag collection net is fitted on the bottom opening of the slag collection cylinder, and a slag baffle is set on one side of the slag collection cylinder.

[0005] In the preferred embodiment, the slag collection hopper has a fan-shaped structure, and the constricted end of the slag collection hopper is engaged with the outer ring of the slag collection port.

[0006] In the preferred embodiment, the outer ring of the constricted end of the slag collection hopper is provided with a protruding retaining edge, and the outer ring of the slag collection opening is provided with a retaining groove that matches the retaining edge, with the retaining edge being engaged inside the retaining groove.

[0007] In the preferred embodiment, auxiliary floats are provided on both sides of the slag collection hopper, and mounting rings are also provided on both sides of the slag collection hopper, with the auxiliary floats mounted on the mounting rings.

[0008] In the preferred embodiment, multiple hooks are provided on the outer ring below the slag collection cylinder, and a ring-shaped slag collection net hanging rope is provided on the outer ring above the opening of the slag collection net, with the slag collection net hanging rope set on the hooks.

[0009] In the preferred embodiment, a limiting ring protruding outward is provided at the lower opening of the slag collection cylinder, and a magnetic strip is also provided. The magnetic strip is sleeved on the outside of the slag collection net and is attracted to the slag collection cylinder. The lower end of the magnetic strip abuts against the limiting ring.

[0010] In the preferred embodiment, a tensioning belt is also interspersed on the slag collection net, with both ends of the tensioning belt connected to the slag collection rope, and the end of the slag collection rope is set on the lifting lug on the slag collection cylinder.

[0011] In the preferred embodiment, a fixed support is provided on one side of the slag collection cylinder, and the end of the fixed support is connected to the slag baffle.

[0012] In the preferred embodiment, the end of the fixed bracket is fitted with a U-shaped claw, which is engaged with the scum baffle. A locking plate is provided at the opening of the claw, and the locking plate and the claw cooperate to lock the scum baffle.

[0013] The method includes:

[0014] S1. The slag collection cylinder is connected to the fixed bracket and fixed to the original slag baffle of the filter sedimentation tank by the movable claw. When the slag baffle moves normally, it drives the slag collection cylinder to move on the surface of the tank.

[0015] S2. During the movement of the slag collection cylinder, the drive motor is turned on to drive the propeller to rotate, sucking the floating slag and mud from the slag collection hopper into the slag collection cylinder. Water flows out from the mesh of the slag collection net, and the floating slag and mud are intercepted in the slag collection net.

[0016] S3. When a certain amount of mud and sludge has been collected, move the cleaning device to a position that is easy to operate, turn off the drive motor, and the propeller stops working.

[0017] S4. Loosen the hanging rope of the slag collection net, tighten the slag collection rope to form a narrow opening at the top of the slag collection net, lift the slag collection net, pour out the sludge and transfer it to the garbage dump, hang the hanging rope of the slag collection net and tie it tightly, adjust the magnetic strip of the slag collection net to the appropriate position, and fix the slag collection rope in place.

[0018] S5. Adjust the magnetic strip to the appropriate position to ensure tight contact between the slag collection screen and the slag collection cylinder;

[0019] The length of the hanging rope for the slag collection net is adjustable, making it easy to disassemble and install the slag collection net;

[0020] When installing the slag collection hopper, be sure to press the slag collection screen near the slag collection port tightly to prevent blockage.

[0021] This invention provides a surface cleaning device and method for a filtration sedimentation tank. The separation device moves with the aid of a scum baffle, and floating debris on the tank surface is collected through a scum collection hopper. Utilizing the high-speed rotation of a propeller to generate downward thrust, the pressure at the top of the scum collection cylinder rapidly decreases. The scum-water mixture in the scum collection hopper is drawn into the scum collection cylinder through the scum collection port under atmospheric pressure and pushed into the scum collection net. Water is squeezed out of the net, while sludge remains inside, to be cleaned during inspection and maintenance.

[0022] High cleaning efficiency. It uses power to forcibly separate floating mud and slag, ensuring thorough cleaning of floating debris. It is highly efficient, easy to operate, has a simple structure, saves manual labor, does not affect the effluent quality of the sedimentation tank, and significantly improves the appearance of the sedimentation tank. Simple operation. After installation, the device moves automatically with the scum baffle and can be manually started and stopped with a single button or automatically started and stopped at set times. The scum collection screen and hopper are easy to disassemble during routine inspections, allowing for quick cleaning. The installation position is adjustable, making it versatile. It can be used for routine cleaning of the sedimentation tank surface or for emergency response in case of unforeseen circumstances. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a general appearance and structural diagram of the present invention;

[0025] Figure 2 This is a cross-sectional view of the internal structure of the slag collection cylinder of the present invention;

[0026] Figure 3 This is a structural diagram of the disassembly and installation of the slag collection hopper of the present invention;

[0027] Figure 4 This is a diagram of the slot installation structure of the slag collection cylinder of the present invention;

[0028] Figure 5 This is a structural diagram of the fixed support of the present invention.

[0029] In the diagram: 1. Scum baffle; 2. Fixed bracket; 201. Claw; 202. Locking plate; 3. Drive motor; 4. Scum collection cylinder; 401. Lifting lug; 402. Slot; 403. Limiting ring; 5. Hook; 6. Scum collection net hanging rope; 7. Scum collection hopper; 701. Installation ring; 702. Magnetic strip; 8. Scum collection rope; 9. Tightening belt; 901. Scum collection net; 10. Auxiliary float; 11. Scum collection port; 12. Propeller; 13. Detailed Implementation

[0030] Example 1

[0031] like Figures 1-5As shown, a surface cleaning device for a filtration sedimentation tank includes a slag collection cylinder 4 with an open bottom and a closed top. A slag collection port 12 is located on one side of the slag collection cylinder 4, connected to a slag collection hopper 7. A propeller 13 is installed inside the slag collection cylinder 4, and a drive motor 3 is located at the top of the slag collection cylinder 4, connected to the propeller 13. A slag collection net 10 is fitted over the opening at the bottom of the slag collection cylinder 4, and one side of the slag collection cylinder 4 is mounted on a scum baffle 1. The device includes a slag collection hopper 7, a slag collection cylinder 4, a fixed support 2, and a drive motor 3, propeller 13, slag collection net 10, and hook 5 mounted on the slag collection cylinder 4. The slag collection cylinder 4 is connected to the fixed support 2 and fixed to the existing scum baffle 8 in the secondary sedimentation tank. This fixing method can use movable clips and tracks, allowing the slag collection device to move within a certain range and expand the collection area. The slag collection hopper 7 is fixed to the slag collection cylinder 4 using a detachable insert clip. An auxiliary float is installed at the bottom or side of the slag collection hopper 7 to maintain the device's balance on the water surface. The slag collection net 10 is fixed to the slag collection cylinder 4 by hooks 5. A magnetic strip 8 is provided near the opening of the slag collection net 10 to maintain the tightness between the slag collection net and the slag collection cylinder. A slag collection rope 9 is provided in the upper middle part of the slag collection net to tighten the net opening during slag cleaning to prevent garbage from falling, and also serves as a leverage point for lifting the slag collection net 10.

[0032] The separation device moves with the aid of a scum baffle, and floating debris on the pool surface is collected through a scum hopper. Utilizing the high-speed rotation of the propeller to generate downward thrust, the pressure at the top of the scum collection cylinder rapidly decreases. The scum-water mixture in the scum hopper is then drawn into the scum collection cylinder through the scum collection port under atmospheric pressure and pushed into the scum collection screen. Water is squeezed out of the mesh, while scum remains inside the screen and is cleaned during inspection and maintenance.

[0033] In the preferred embodiment, the slag collection hopper 7 has a fan-shaped structure, and the constricted end of the slag collection hopper 7 is engaged with the outer ring of the slag collection port 12. For example... Figure 1-3 As shown in the diagram, the fan-shaped structure can enhance the collection effect.

[0034] In the preferred embodiment, the outer ring of the constricted end of the slag collection hopper 7 is provided with a protruding retaining edge 702, and the outer ring of the slag collection opening 12 is provided with a retaining groove 402 that matches the retaining edge 702, with the retaining edge 702 being engaged inside the retaining groove 402. Figure 3-4 As shown in the structure, the retaining edge 702 is provided on both sides and the bottom, and the retaining edge 702 and the retaining groove 402 have a better engagement effect.

[0035] In the preferred embodiment, auxiliary floats 11 are provided on both sides of the slag collection hopper 7, and mounting rings 701 are also provided on both sides of the slag collection hopper 7. The auxiliary floats 11 are mounted on the mounting rings 701. The auxiliary floats 11 are installed on the bottom or side of the slag collection hopper 7 to keep the device balanced on the water surface.

[0036] In the preferred embodiment, the outer ring below the slag collection cylinder 4 is provided with multiple hooks 5, and the outer ring above the opening of the slag collection net 10 is provided with an annular slag collection net hanging rope 6, which is set on the hooks 5.

[0037] In the preferred embodiment, a protruding limiting ring 403 is provided at the lower opening of the slag collection cylinder 4, along with a magnetic strip 8. The magnetic strip 8 is fitted around the outside of the slag collection net 10 and is attracted to the slag collection cylinder 4, with its lower end abutting against the limiting ring 403. A tightening strap 901 is also inserted into the slag collection net 10, with both ends connected to a slag collection rope 9. The end of the slag collection rope 9 is attached to a lifting lug 401 on the slag collection cylinder 4. The slag collection net 10 is fixed to the slag collection cylinder 4 by a hook 5. The magnetic strip 8 is provided near the opening of the slag collection net 10 to maintain the tightness between the slag collection net and the slag collection cylinder. The slag collection rope 9 is provided in the upper part of the slag collection net to tighten the net opening during slag cleaning, preventing debris from falling, and also serves as a leverage point for lifting the slag collection net 10.

[0038] In the preferred embodiment, a fixed support 2 is provided on one side of the scum collection cylinder 4, and the end of the fixed support 2 is connected to the scum baffle 1. The scum collection cylinder 4 is connected to the fixed support 2 and fixed to the original scum baffle 1 in the secondary sedimentation tank by a movable clamp. When the scum baffle 1 moves normally, it drives the cleaning device to move on the surface of the tank.

[0039] In the preferred embodiment, the end of the fixed bracket 2 is connected to a U-shaped claw 201, which engages with the scum baffle 1. A locking plate 202 is provided at the opening of the claw 201, and the locking plate 202 and the claw 201 cooperate to lock the bracket onto the scum baffle 1. Figure 5 As shown in the diagram, the U-shaped claw 201 is installed upside down on the scum baffle 1 and is fixed to the scum baffle 1 by the locking plate 202.

[0040] Example 2

[0041] Further explanation in conjunction with Example 1, such as Figure 1-5 As shown in the structure, the slag collection cylinder 4 is connected to the fixed bracket 2 and fixed to the original slag baffle 1 of the filtration sedimentation tank by the movable claw 201. When the slag baffle 1 moves normally, it drives the slag collection cylinder 4 to move on the surface of the tank.

[0042] As the floating device moves along the slag collection cylinder 4, the drive motor 3 is turned on to drive the propeller 13 to rotate, sucking the floating slag and mud from the slag collection hopper 7 into the slag collection cylinder 4. Water flows out from the mesh of the slag collection net 10, and the floating slag and mud are intercepted in the slag collection net 10.

[0043] Once a certain amount of mud and sludge has been collected, move the cleaning device to a convenient operating position, turn off the drive motor 3, and stop the propeller 13 from working.

[0044] Loosen the hanging rope 6 of the slag collection net, tighten the shrinkage band 901 by the slag collection rope 9 to form a narrow opening at the upper end of the slag collection net 10, lift out the slag collection net 10, pour out the sludge and transfer it to the garbage dumping point, hang the hanging rope 6 of the slag collection net and tie it tightly, adjust the magnetic strip 8 of the slag collection net 10 to a suitable position, and fix the slag collection rope 9 in a secure position.

[0045] Adjust the magnetic strip 8 to a suitable position to ensure that the slag collection net 10 and the slag collection cylinder 4 are in tight contact.

[0046] The length of the hanging rope for the slag collection net is adjustable, making it easy to disassemble and install the slag collection net.

[0047] When installing the slag collection hopper 7, be sure to press the slag collection screen 10 near the slag collection port tightly to prevent clogging of the slag collection port.

[0048] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A surface cleaning device for a filtration sedimentation tank, characterized in that: The slag collection cylinder (4) has an open structure at the bottom and a closed structure at the top. A slag collection port (12) is provided on one side of the slag collection cylinder (4), and the slag collection port (12) is connected to the slag collection hopper (7). A propeller (13) is provided inside the slag collection cylinder (4), and a drive motor (3) is provided at the top of the slag collection cylinder (4). The drive motor (3) is connected to the propeller (13). A slag collection net (10) is fitted on the opening at the bottom of the slag collection cylinder (4). The slag collection cylinder (4) is set on one side of the original slag baffle (1) of the filter sedimentation tank. When the slag baffle (1) moves normally, it can drive the slag collection cylinder (4) to move on the surface of the tank. The drive motor (3) can drive the propeller (13) to rotate, sucking the scum and mud from the scum collection hopper (7) into the scum collection cylinder (4), and water flows out from the mesh of the scum collection net (10), while the scum and mud are intercepted in the scum collection net (10); Multiple hooks (5) are provided on the outer ring below the slag collection cylinder (4), and a ring-shaped slag collection net hanging rope (6) is provided on the outer ring above the opening of the slag collection net (10). The slag collection net hanging rope (6) is set on the hooks (5). The slag collection cylinder (4) has an outwardly protruding limiting ring (403) at the lower opening position, and also has a magnetic strip (8). The magnetic strip (8) is sleeved on the outside of the slag collection net (10), and the magnetic strip (8) is attracted to the slag collection cylinder (4). The lower end of the magnetic strip (8) abuts against the limiting ring (403).

2. The surface cleaning device for a filtration sedimentation tank according to claim 1, characterized in that: The slag collection hopper (7) has a fan-shaped structure, and the constricted end of the slag collection hopper (7) is engaged with the outer ring of the slag collection port (12).

3. The surface cleaning device for a filtration sedimentation tank according to claim 2, characterized in that: The outer ring of the constricted end of the slag collection hopper (7) is provided with a protruding retaining edge (702), and the outer ring of the slag collection port (12) is provided with a groove (402) matching the retaining edge (702), and the retaining edge (702) is fitted inside the groove (402).

4. The surface cleaning device for a filtration sedimentation tank according to claim 2, characterized in that: The slag collection bucket (7) is provided with auxiliary floats (11) on both sides, and the slag collection bucket (7) is also provided with mounting rings (701) on both sides. The auxiliary floats (11) are set on the mounting rings (701).

5. The surface cleaning device for a filtration sedimentation tank according to claim 1, characterized in that: A tightening belt (901) is also inserted on the slag collection net (10). The two ends of the tightening belt (901) are connected to the slag collection rope (9). The end of the slag collection rope (9) is set on the lifting lug (401) on the slag collection cylinder (4).

6. The surface cleaning device for a filtration sedimentation tank according to claim 1, characterized in that: A fixed bracket (2) is provided on one side of the slag collection cylinder (4), and the end of the fixed bracket (2) is connected to the slag baffle (1).

7. The surface cleaning device for a filtration sedimentation tank according to claim 6, characterized in that: The fixed bracket (2) has a U-shaped claw (201) at its end. The claw (201) is locked on the scum baffle (1). The opening of the claw (201) is provided with a locking plate (202). The locking plate (202) and the claw (201) are locked together on the scum baffle (1).

8. The cleaning method of the surface cleaning device for a filtration sedimentation tank according to any one of claims 1-7, characterized in that: The method includes: S1. The slag collection cylinder (4) is connected to the fixed bracket (2) and fixed to the original slag baffle (1) of the filter sedimentation tank by the movable claw (201). When the slag baffle (1) moves normally, it drives the slag collection cylinder (4) to move on the surface of the tank. S2. During the movement of the slag collection cylinder (4), the drive motor (3) is turned on to drive the propeller (13) to rotate, and the floating slag and mud are sucked into the slag collection cylinder (4) from the slag collection bucket (7). Water flows out from the mesh of the slag collection net (10), and the floating slag and mud are intercepted in the slag collection net (10). S3. When a certain amount of mud and sludge has been collected, move the cleaning device to a position that is easy to operate, turn off the drive motor (3), and the propeller (13) stops working. S4. Loosen the hanging rope (6) of the slag collection net, tighten the shrinking band (901) by the slag collection rope (9) to form a narrow opening at the top of the slag collection net (10), lift out the slag collection net (10), pour out the sludge and transfer it to the garbage dumping point, hang up the hanging rope (6) of the slag collection net and tie it tightly, adjust the magnetic strip (8) of the slag collection net (10) to the appropriate position, and fix the slag collection rope (9) in place. S5. Adjust the magnetic strip (8) to a suitable position to ensure that the slag collection net (10) and the slag collection cylinder (4) are in tight contact; The length of the hanging rope (6) for the slag collection net is adjustable, making it convenient to disassemble and install the slag collection net; When installing the slag collection hopper (7), pay attention to pressing the slag collection net (10) near the slag collection port tightly to avoid clogging the slag collection port.

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