A sedimentation tank sludge cleaning device and cleaning method

Abstract

The present invention relates to the technical field of pollution removal devices, and provides a sedimentation tank sludge cleaning device and cleaning method, including a tank bottom, a wall arranged around the edge of the tank bottom, including a vortex groove opened on the tank bottom, a base arranged at the center of the tank bottom, a support column arranged on the base, a sleeve sleeved on the outer wall of the support column, a driving device for driving the sleeve to rotate, a pollution removal device slidably arranged in the vortex groove, and a first connecting rod for connecting the sleeve and the pollution removal device; the vortex groove is a vortex line structure with the axis of the base as the center of the circle; the pollution removal device includes a pair of enclosures clamped in the vortex groove, a connecting pipe for connecting a pair of enclosures, a water spray pipe arranged in a pair of enclosures, and a water suction pipe arranged in a pair of enclosures; the first connecting rod is slidably arranged in the connecting pipe. The sedimentation tank sludge cleaning device and cleaning method of the present invention can efficiently and automatically clean the sludge at the bottom of the sedimentation tank.

Description

Technical Field

[0001] The present invention relates to the technical field of pollution removal devices, and in particular to a sedimentation tank sludge cleaning device and a cleaning method. Background Art

[0002] In sewage and wastewater treatment processes, sedimentation is usually near the end of the treatment process. The sedimentation process usually occurs in a sedimentation tank. A sedimentation tank is a structure that uses sedimentation to remove suspended matter in water. It is a water purification device that uses the natural sedimentation or coagulation sedimentation of water to remove suspended matter in water.

[0003] In the sedimentation tank, particulate impurities gradually sink to the bottom of the tank, and the clean water above the water body is slowly discharged. The discharge of wastewater and the discharge of purified water are both continuous. Impurities will gradually settle at the bottom of the tank, and a thick sludge layer will be formed after a certain period of time, which needs to be cleaned before sedimentation. Due to the large volume and floor space of the sedimentation tank, it is difficult to use automated equipment for cleaning, and most of the cleaning is done by manually operated equipment. And because the sludge is thick, hard and has a high consistency, it is usually first impacted with high-pressure water to disperse it in the water, and then quickly sucked away with a suction pipe, which is cumbersome for manual operation. And a large area of ​​the tank is also very labor-intensive. Therefore, it is necessary to design a more efficient and automated dredging device. Summary of the invention

[0004] The object of the present invention is to provide a sedimentation tank sludge cleaning device and a cleaning method, which can efficiently and automatically clean the sludge at the bottom of the sedimentation tank.

[0005] The present invention is realized by the following technical scheme: the sludge cleaning device of the sedimentation tank of the present invention comprises a tank bottom, a wall arranged around the edge of the tank bottom, comprising a vortex groove opened on the tank bottom, a base arranged at the center of the tank bottom, a support column arranged on the base, a sleeve sleeved on the outer wall of the support column, a driving device for driving the sleeve to rotate, a dirt removal device slidably arranged in the vortex groove, and a first connecting rod for connecting the sleeve with the dirt removal device; the vortex groove is a vortex line structure with the axis of the base as the center of the circle; the dirt removal device comprises a pair of enclosures clamped in the vortex groove, a connecting pipe for connecting a pair of the enclosures, a water spray pipe arranged in the pair of the enclosures, and a water suction pipe arranged in the pair of the enclosures; the first connecting rod is slidably arranged in the connecting pipe; the enclosure is made of elastic metal material, and a pair of the enclosures are arranged in adjacent vortex grooves; the water spray pipe is connected to a water pump, and the water suction pipe is connected to a negative pressure machine; the water spray pipe and the water suction pipe are both connected to the side wall of the connecting pipe.

[0006] Furthermore, both ends of a pair of the enclosures are connected by a first filter cloth, and the first filter cloth is made of an elastic material; there is a gap between the first filter cloth and the pool bottom.

[0007] Furthermore, the upper ends of a pair of the enclosures are connected by a second filter cloth, and the second filter cloth is made of an elastic material; the water spray pipe and the water suction pipe are both arranged through the second filter cloth.

[0008] Furthermore, a second connecting rod parallel to each other is provided directly above the first connecting rod, and the water spray pipe and the water suction pipe are fixedly connected via a connecting block; one end of the second connecting rod is fixedly connected to the side wall of the sleeve, and the other end is slidably connected to the connecting block.

[0009] Furthermore, the driving device includes a bracket plate horizontally mounted on the upper end of the wall, a motor arranged on the bracket plate, and an inverted U-shaped driving plate connected to the output shaft of the motor; both ends of the driving plate are fixedly connected to the upper end of the sleeve, and the support column is arranged in the driving plate.

[0010] Furthermore, a vertically arranged pull rod is provided on the upper side of the connecting block, and the pull rod is connected to a pull rope; the circumference of the outer wall of the support column is equal to the pitch of the vortex groove; and one end of the pull rope away from the pull rod is wound around the support column.

[0011] Furthermore, a through hole is provided on the driving plate, and the pull rope is passed through the through hole.

[0012] Furthermore, the outer wall of the support column is provided with threads, and the sleeve is threadedly connected to the support column.

[0013] The present invention also provides a cleaning method based on the above-mentioned sedimentation tank sludge cleaning device, comprising the following operating steps:

[0014] (1) Install the decontamination device in the vortex groove close to the wall;

[0015] (2) Manually measure the sludge thickness at the bottom of the pool. When the sludge thickness reaches the standard that needs to be cleaned, connect the water spray pipe to the water pump, connect the water suction pipe to the negative pressure machine, and start the driving device so that the decontamination device moves in a progressive circular motion along the vortex around the base;

[0016] (3) The decontamination device moves to a position close to the base and stops running. Then the sludge at the bottom of the pool is manually inspected to see if it meets the cleaning standards and whether secondary cleaning is required.

[0017] (4) In step (3), if secondary cleaning is required, the water pump and the negative pressure machine are started again, and the driving device is operated in reverse, so that the decontamination device moves in a circular motion and moves to a position close to the wall, and then the driving device is stopped and the water pump and the negative pressure machine are removed;

[0018] (5) In step (3), if secondary cleaning is not required, stop the decontamination device next to the base and remove the water pump and negative pressure machine.

[0019] The technical solution of the present invention has at least the following advantages and beneficial effects: the sedimentation tank sludge cleaning device and cleaning method of the present invention clamp the enclosure in the decontamination device in the vortex groove of the spiral line structure. When the driving device pushes the enclosure to make a circular motion through the first connecting rod, the enclosure will also move radially due to the existence of the vortex groove. During the movement, the flushing pipe can flush the sludge on the bottom of the pool to disperse it in the water body, and the suction pipe can suck away the sewage in time. The area enclosed by a pair of enclosures can pass through almost all areas of the pool bottom surface, and can clean the sludge on the bottom of the pool very efficiently and thoroughly, and there is no need for manual entry into the pool bottom to operate, and no omissions will occur. The whole process is more efficient and saves labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a sedimentation tank sludge cleaning device from one perspective provided in Example 1 of the present invention;

[0021] Figure 2 A schematic structural diagram of a sedimentation tank sludge cleaning device from two perspectives provided in Example 1 of the present invention;

[0022] Figure 3 A schematic diagram of the structure of the demisting device provided in Example 1 of the present invention;

[0023] Figure 4 A schematic diagram of the structure of the enclosure part provided in Example 1 of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure inside the enclosure provided in Example 1 of the present invention.

[0025] Icons: 11- pool bottom, 12- wall, 13- vortex, 14- base, 15- support column, 16- casing, 17- first connecting rod, 20- dirt removal device, 21- enclosure, 22- connecting pipe, 23- water suction pipe, 24- flushing pipe, 25- first filter cloth, 26- second filter cloth, 27- connecting block, 28- second connecting rod, 29- pull rod, 210- pull rope, 31- bracket plate, 32- motor, 33- drive plate. DETAILED DESCRIPTION

[0026] Example 1

[0027] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 5 As shown, the sedimentation tank sludge cleaning device of this embodiment includes a tank bottom 11, a wall 12 surrounding the edge of the tank bottom 11, including a vortex groove 13 opened on the tank bottom 11, a base 14 arranged at the center of the tank bottom 11, a support column 15 arranged on the base 14, a sleeve 16 sleeved on the outer wall of the support column 15, a driving device for driving the sleeve 16 to rotate, a dirt removal device 20 slidably arranged in the vortex groove 13, and a first connecting rod 17 for connecting the sleeve 16 and the dirt removal device 20; the vortex groove 13 is a circle with the axis of the base 14 as a circle. The decontamination device 20 comprises a pair of enclosures 21 which are clamped in the vortex groove 13, a connecting pipe 22 for connecting the pair of enclosures 21, a water spraying pipe arranged in the pair of enclosures 21, and a water suction pipe 23 arranged in the pair of enclosures 21; the first connecting rod 17 is slidably arranged in the connecting pipe 22; the enclosure 21 is made of elastic metal material, and a pair of enclosures 21 are arranged in adjacent vortex grooves 13; the water spraying pipe is connected to a water pump, and the water suction pipe 23 is connected to a negative pressure machine; the water spraying pipe and the water suction pipe 23 are both connected to the side wall of the connecting pipe 22. Specifically, the enclosure 21 in the dirt removal device 20 is stuck in the vortex groove 13 with a spiral line structure. When the driving device pushes the enclosure 21 to make a circular motion through the first connecting rod 17, due to the existence of the vortex groove 13, the enclosure 21 will also move radially. During the movement, the flushing pipe 24 can flush the sludge on the pool bottom 11 to disperse it in the water body, and the suction pipe 23 can suck away the sewage in time. The area surrounded by a pair of enclosures 21 can pass through almost all areas of the surface of the pool bottom 11, and can clean the sludge on the pool bottom 11 very efficiently and thoroughly, and there is no need for manual entry into the pool bottom 11 for operation, and no omissions will occur. The whole process is more efficient and saves labor.

[0028] The two ends of a pair of enclosures 21 in this embodiment are connected by a first filter cloth 25, which is made of an elastic material; there is a gap between the first filter cloth 25 and the pool bottom 11. The upper ends of a pair of enclosures 21 are connected by a second filter cloth 26, which is made of an elastic material; the water spray pipe and the water suction pipe 23 are both set through the second filter cloth 26. Specifically, the enclosure 21 can be surrounded by the first filter cloth 25 and the second filter cloth 26, so that when the sludge is impacted, the sludge dispersed in the water can be kept between the enclosure 21, the first filter cloth 25 and the second filter cloth 26 as much as possible, and because the curvature of the vortex 13 is constantly changing during the movement of the enclosure 21, the enclosure 21 will also be deformed accordingly, so the first filter cloth 25 and the second filter cloth 26 need to be made of elastic materials, so that they can cope with the deformation of the enclosure 21.

[0029] In this embodiment, a second connecting rod 28 parallel to each other is arranged just above the first connecting rod 17, and the water spray pipe and the water suction pipe 23 are fixedly connected by the connecting block 27; one end of the second connecting rod 28 is fixedly connected to the side wall of the sleeve 16, and the other end is slidably connected to the connecting block 27. Specifically, the enclosure 21 can keep moving in a vortex shape under the action of the vortex groove 13 and the first connecting rod 17, but the water spray pipe and the water suction pipe 23 may cause certain obstacles to the movement of the enclosure 21, so the connection between the water spray pipe and the water suction pipe 23 and the connecting pipe 22 can be supported by the connecting block 27 and the second connecting rod 28. This makes the movement of the enclosure 21 as little affected by the water spray pipe and the water suction pipe 23 as possible.

[0030] The driving device in this embodiment includes a bracket plate 31 horizontally mounted on the upper end of the wall 12, a motor 32 disposed on the bracket plate 31, and an inverted U-shaped driving plate 33 connected to the output shaft of the motor 32; both ends of the driving plate 33 are fixedly connected to the upper end of the sleeve 16, and the support column 15 is disposed in the driving plate 33. Specifically, the motor 32 drives the sleeve 16 to rotate through the driving plate 33, thereby driving the first connecting rod 17 and the dirt removal device 20 to perform circular motion.

[0031] In this embodiment, a vertically arranged pull rod 29 is provided on the upper side of the connection block 27, and a pull rope 210 is connected to the pull rod 29; the circumference of the outer wall of the support column 15 is equal to the pitch of the vortex groove 13; the end of the pull rope 210 away from the pull rod 29 is wound around the support column 15. A through hole is provided on the drive plate 33, and the pull rope 210 is arranged through the through hole. Specifically, during the rotation of the dirt removal device 20, each rotation will approach (or move away from) the base 14 by a pitch length, so during the rotation process, the pull rope 210 will continuously wrap around the support column 15 and always keep pulling the connection block 27, so that the water spray pipe and the water suction pipe 23 have less influence on the enclosure 21.

[0032] The outer wall of the support column 15 in this embodiment is provided with threads, and the sleeve 16 is threadedly connected to the support column 15. Specifically, for a pool with a center of a circle, sewage is usually poured into the central part of the pool, so that the sewage can be more evenly distributed in the pool, so the sludge thickness of the pool bottom 11 close to the base 14 is the last and shows a trend of gradual change, so in the process of the decontamination device 20 moving closer to the base 14, the height of the enclosure 21 also needs to be gradually increased, which is mainly achieved by the threaded connection of the sleeve 16 and the support column 15. As the sleeve 16 rotates on the support column 15, the height of the sleeve 16 will gradually increase, which will also drive the first connecting rod 17, the second connecting rod 28 and the height of the decontamination device 20 to increase.

[0033] Example 2

[0034] This embodiment provides a cleaning method of the sedimentation tank sludge cleaning device based on embodiment 1, comprising the following steps:

[0035] (1) Install the decontamination device in the vortex groove close to the wall;

[0036] (2) Manually measure the sludge thickness at the bottom of the pool. When the sludge thickness reaches the standard that needs to be cleaned, connect the water spray pipe to the water pump, connect the water suction pipe to the negative pressure machine, and start the driving device so that the decontamination device moves in a progressive circular motion along the vortex around the base;

[0037] (3) The decontamination device moves to a position close to the base and stops running. Then the sludge at the bottom of the pool is manually inspected to see if it meets the cleaning standards and whether secondary cleaning is required.

[0038] (4) In step (3), if secondary cleaning is required, the water pump and the negative pressure machine are started again, and the driving device is operated in reverse, so that the decontamination device moves in a circular motion and moves to a position close to the wall, and then the driving device is stopped and the water pump and the negative pressure machine are removed;

[0039] (5) In step (3), if secondary cleaning is not required, stop the decontamination device next to the base and remove the water pump and negative pressure machine.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sedimentation tank sludge cleaning device, comprising a tank bottom (11), and a wall (12) arranged around the edge of the tank bottom (11), characterized in that: The invention comprises a vortex groove (13) provided on the pool bottom (11), a base (14) provided at the center of the pool bottom (11), a support column (15) provided on the base (14), a sleeve (16) sleeved on the outer wall of the support column (15), a driving device for driving the sleeve (16) to rotate, a decontamination device (20) slidably provided in the vortex groove (13), and a first connecting rod (17) for connecting the sleeve (16) and the decontamination device (20); The vortex groove (13) is a vortex line structure with the axis of the base (14) as the center; the decontamination device (20) comprises a pair of enclosures (21) clamped in the vortex groove (13), used to connect a pair of connecting pipes (22) of the enclosures (21), a water spray pipe arranged in the pair of enclosures (21), and a water suction pipe (23) arranged in the pair of enclosures (21); the first connecting rod (17) is slidably arranged in the connecting pipe (22); the enclosure (21) is made of an elastic metal material, and a pair of enclosures (21) are arranged in adjacent vortex grooves (13); the water spray pipe is connected to a water pump, and the water suction pipe (23) is connected to a negative pressure machine; the water spray pipe and the water suction pipe (23) are both connected to the side wall of the connecting pipe (22); Both ends of the pair of enclosures (21) are connected by a first filter cloth (25), and the first filter cloth (25) is made of an elastic material; there is a gap between the first filter cloth (25) and the pool bottom (11); The upper ends of a pair of the enclosure plates (21) are connected by a second filter cloth (26), and the second filter cloth (26) is made of an elastic material; the water spray pipe and the water suction pipe (23) are both arranged through the second filter cloth (26).

2. The sedimentation tank sludge cleaning device according to claim 1 is characterized in that: A second connecting rod (28) parallel to each other is provided directly above the first connecting rod (17); the water spray pipe and the water suction pipe (23) are fixedly connected via a connecting block (27); one end of the second connecting rod (28) is fixedly connected to the side wall of the sleeve (16), and the other end is slidably connected to the connecting block (27).

3. The sedimentation tank sludge cleaning device according to claim 2 is characterized in that: The driving device comprises a support plate (31) horizontally mounted on the upper end of the wall (12), a motor (32) mounted on the support plate (31), and an inverted U-shaped driving plate (33) connected to the output shaft of the motor (32); Both ends of the driving plate (33) are fixedly connected to the upper end of the sleeve (16), and the support column (15) is arranged in the driving plate (33).

4. The sedimentation tank sludge cleaning device according to claim 3 is characterized in that: A vertically arranged pull rod (29) is provided on the upper side of the connecting block (27), and the pull rod (29) is connected to a pull rope (210); The circumference of the outer wall of the support column (15) is equal to the pitch of the vortex groove (13); and one end of the pull rope (210) away from the pull rod (29) is wound around the support column (15).

5. The sedimentation tank sludge cleaning device according to claim 4 is characterized in that: The driving plate (33) is provided with a through hole, and the pull rope (210) is arranged through the through hole.

6. The sedimentation tank sludge cleaning device according to claim 1 is characterized in that: The outer wall of the support column (15) is provided with threads, and the sleeve (16) is threadedly connected to the support column (15).

7. A cleaning method for the sedimentation tank sludge cleaning device according to any one of claims 1 to 6, characterized in that: The following steps are included: (1) Installing the decontamination device (20) in the vortex groove (13) close to the wall (12); (2) Manually measure the sludge thickness at the bottom of the pool (11). When the sludge thickness reaches the standard required for cleaning, connect the water spray pipe to the water pump, connect the water suction pipe (23) to the negative pressure machine, and start the driving device so that the decontamination device (20) moves in a progressive circular motion along the vortex groove (13) around the base (14); (3) The decontamination device (20) moves to a position close to the base (14) and stops running, and then manually checks whether the sludge on the bottom of the pool (11) meets the cleaning standard and determines whether secondary cleaning is required; (4) In step (3), if a second cleaning is required, the water pump and the negative pressure machine are started again, and the driving device is operated in reverse, so that the decontamination device (20) moves in a circular motion and moves to a position close to the wall (12), and then the driving device is stopped and the water pump and the negative pressure machine are removed; (5) In step (3), if secondary cleaning is not required, the decontamination device (20) is stopped next to the base (14) and the water pump and the negative pressure machine are removed.

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