Reclaimed water flushing dredging device for sludge discharge pipe of secondary sedimentation tank

Abstract

The utility model discloses a reclaimed water flushing and dredging device for a sludge discharge pipe of a secondary sedimentation tank, and relates to the technical field of water treatment. Comprising a sludge channel, a pipeline flushing device and a sludge hopper arranged at the bottom of a secondary sedimentation tank, a sludge discharge pipe is inserted into the top in the sludge hopper, the middle of the sludge discharge pipe is fixedly communicated with a sludge discharge outlet pipe, the sludge discharge outlet pipe is communicated with the sludge channel, and a sludge discharge pipe port is formed in the top of the sludge discharge pipe and penetrates through a top frame of the secondary sedimentation tank. The pipeline flushing device is inserted into the sludge discharge pipe through the sludge discharge pipe port; the sludge discharging pipe and the sludge hopper are flushed regularly through the pipeline flushing device, the problems of blockage of the sludge discharging pipe and sludge hardening of the sludge hopper are solved, a sludge backflow channel is unblocked, the device can be installed and used without damaging an original pipeline, the device is convenient to dismantle and restore to the original shape for other refitting modes, a factory reuse water pipeline is used for water delivery, and extra cost does not need to be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field especially relates to the mud pipe of secondary sedimentation tank flushing dredging device. BACKGROUND

[0002] Secondary sedimentation tank, namely secondary sedimentation tank, is an important component in sewage treatment process, mainly used for mud water separation, makes mixed liquid clear, thickens sludge and returns separated sludge to biological treatment section. In the long-term mud water separation process of secondary sedimentation tank, in order to maintain the normal work of secondary sedimentation tank, sludge needs to be discharged regularly.

[0003] The existing sludge discharge of secondary sedimentation tank adopts hydraulic pressure difference regular sludge discharge, in the secondary sedimentation tank, the sludge in sludge hopper deposits due to gravity. When sludge needs to be discharged, by adjusting the water inflow of distribution channel and the opening of valve, the liquid level difference in secondary sedimentation tank can be increased, along with the increase of liquid level difference, the hydraulic pressure in sludge discharge pipe also increases accordingly, thereby pushing the sludge in sludge hopper to enter sludge channel through sludge discharge pipe and discharge.

[0004] However, in the long-term sludge discharge process of sludge discharge pipe, due to the slow flow rate of sludge discharge, the sludge in sludge hopper is prone to hardening, the sludge discharge pipe is prone to blockage, and the normal sludge return is affected.

[0005] Therefore, it is necessary to design a secondary sedimentation tank sludge discharge pipe flushing dredging device to flush and dredge the sludge discharge pipe and sludge hopper. CONTENT OF UTILITY MODEL

[0006] The utility model provides secondary sedimentation tank sludge discharge pipe flushing dredging device, solves the technical problem proposed above.

[0007] In order to solve the above technical problem, the secondary sedimentation tank sludge discharge pipe flushing dredging device provided by the utility model, including sludge channel, pipeline flushing device and the sludge hopper arranged at the bottom of secondary sedimentation tank, the sludge hopper is inserted with sludge discharge pipe at the top, sludge discharge outlet pipe is fixedly connected in the middle of sludge discharge pipe, and the sludge discharge outlet pipe is communicated with the sludge channel, the sludge discharge pipe port is arranged at the top of sludge discharge pipe and penetrates the top frame of secondary sedimentation tank, and the pipeline flushing device is inserted into the sludge discharge pipe through the sludge discharge pipe port;The pipeline flushing device includes the support limiting device installed on the top frame of secondary sedimentation tank, and the flushing water pipe is inserted into the sludge discharge pipe through the sludge discharge pipe port, and the support limiting device is fixedly installed with manual ball valve and electromagnetic valve on the upper part respectively, and the external connector is fixedly screwed on the top of support limiting device.

[0008] Preferably, the flushing water pipe is connected with the water conveying pipeline in the external factory area water system through the external connector.

[0009] Preferably, the electromagnetic valve is electrically connected with the external PLC control system.

[0010] Preferably, the support limiting device is made of PPR material and can be elastically bent and inserted into the sludge hopper in the sludge discharge pipe.

[0011] Preferably, the support limiting device comprises two right-angle support frames arranged on the top frame of the secondary sedimentation tank, the two right-angle support frames are symmetrically arranged, and a connecting cylinder is rotationally connected to the upper portions of the two right-angle support frames through fixed connecting shafts, arc-shaped clamping plates are arranged in the connecting cylinders, guide shafts are fixed to the upper and lower portions of the arc-shaped clamping plates, the two guide shafts are movably penetrated through the connecting cylinders, and adjusting bolts are rotationally connected to the middle portions of the arc-shaped clamping plates and extend out of the connecting cylinders through the connecting cylinders.

[0012] Preferably, the flushing water pipe penetrates through the connecting cylinder, the arc-shaped clamping plate abuts against the flushing water pipe, and the contact surface between the arc-shaped clamping plate and the flushing water pipe is provided with concave-convex textures.

[0013] Preferably, the flushing water pipe can be connected to a gas conveying pipeline through the external joint, and the gas conveying pipeline is connected to an external gas pump to convey gas.

[0014] Compared with the related art, the water flushing dredging device in the sludge discharge pipe of the secondary sedimentation tank has the following beneficial effects:

[0015] According to the water flushing dredging device, the flushing water pipe can be inserted into the sludge hopper through the support limiting device, the flushing water pipe can enter the sludge discharge pipe and then be inserted into the sludge hopper along the sludge discharge pipe, the insertion depth can be determined by the scale on the outer surface, when the sludge discharge pipe needs to be cleaned, the PLC control system controls the electromagnetic valve to be opened, so that the water in the water conveying pipeline in the external plant area flows into the flushing pipeline, and the high-pressure water is sprayed out of the flushing water pipe to flush the sludge discharge pipe and the sludge hopper, the sludge discharge pipe blockage and the sludge hardening of the sludge hopper are solved, and the sludge backflow channel is unblocked.

[0016] According to the water flushing dredging device, the device can be installed and used without damaging the original pipeline, the device can be easily removed and restored to the original state for other mode modification, the water conveying pipeline uses the plant reuse pipeline, and no additional cost is needed.

[0017] According to the water flushing dredging device, the flushing pipe is inserted to a specified depth by the support limiting device, the scale is used to determine the insertion depth, and then the adjusting bolt is gripped and rotated to drive the arc-shaped clamping plate to move in the connecting cylinder and abut against the flushing water pipe to limit the flushing water pipe, so that manual support is not needed, the flushing water pipe can be conveniently moved, and the flushing of the sludge hopper and the positioning flushing of the sludge discharge pipe at any position are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 FIG. 1 is a schematic view of the water flushing dredging device in the sludge discharge pipe of the secondary sedimentation tank according to the present application;

[0019] Fig. 2 It is a schematic view of the pipeline flushing device of the utility model;

[0020] Fig. 3 It is a schematic view of the support limiting device of the utility model.

[0021] In the drawing, 1 is a sludge channel, 2 is a sludge discharge pipe, 21 is a sludge discharge pipe port, 22 is a sludge discharge outlet pipe, 3 is a sludge hopper, 4 is a pipeline flushing device, 41 is a flushing water pipe, 42 is a support limiting device, 43 is a manual ball valve, 44 is an electromagnetic valve, 45 is an external joint, 421 is a right-angle support frame, 422 is a connecting shaft, 423 is a connecting cylinder, 424 is an arc-shaped clamping plate, 425 is an adjusting bolt, and 426 is a guide shaft. DETAILED DESCRIPTION

[0022] In the embodiment, the water flushing dredging device in the sludge discharge pipe of the secondary sedimentation tank is provided, which comprises a sludge channel 1, a pipeline flushing device 4 and a sludge hopper 3 arranged at the bottom of the secondary sedimentation tank. Figs. 1-3 The sludge hopper 3 is provided with the sludge discharge pipe 2 inserted into the top, and the sludge discharge pipe 2 is fixedly connected with the sludge discharge outlet pipe 22 in the middle, and the sludge discharge outlet pipe 22 is communicated with the sludge channel 1. The sludge discharge pipe 2 is provided with the sludge discharge pipe port 21 penetrating through the top frame of the secondary sedimentation tank, and the pipeline flushing device 4 is inserted into the sludge discharge pipe 2 through the sludge discharge pipe port 21. The pipeline flushing device 4 comprises a support limiting device 42 mounted on the top frame of the secondary sedimentation tank, and the support limiting device 42 is provided with the flushing water pipe 41 penetratingly inserted into the inside. The flushing water pipe 41 is inserted into the sludge discharge pipe 2 through the sludge discharge pipe port 21, and the support limiting device 42 is respectively fixedly provided with the manual ball valve 43 and the electromagnetic valve 44 on the upper part. The external joint 45 is threadedly fixed on the top of the support limiting device 42.

[0023] Specifically, the support limiting device 42 is arranged on the top frame of the secondary sedimentation tank at the position of the sludge discharge pipe port 21. The flushing water pipe 41 is inserted into the sludge discharge pipe port 21 through the support limiting device 42 by manually holding the flushing water pipe 41. The flushing water pipe 41 enters the sludge discharge pipe 2 and can be inserted into the sludge hopper 3 along the sludge discharge pipe 2. The insertion depth is determined by the scale on the outer surface, so that the position of the bottom of the flushing water pipe 41 in the sludge discharge pipe 2 or the sludge hopper 3 is determined. The electromagnetic valve 44 is controlled by the PLC control system and can be opened and closed at a fixed time. When the sludge discharge pipe 2 needs to be cleaned, the PLC control system controls the electromagnetic valve 44 to be opened, so that the water in the water conveying pipeline in the external factory area flows into the flushing pipeline. The high-pressure water is sprayed from the flushing water pipe 41 to flush the sludge discharge pipe 2 and the sludge hopper 3. The sludge discharge pipe 2 and the sludge hopper 3 are solved from the blockage and the sludge hardening, and the sludge return channel is smooth. The device is installed and used without damaging the original pipeline. The device is convenient to remove and restore to the original state for other modification. The water conveying uses the factory area recycling water pipeline without additional cost.

[0024] The flushing water pipe 41 is connected with the water conveying pipe of the external factory reclaimed water system through the external joint 45, and the reclaimed water system provides stable pressure and flow for 24 hours.

[0025] The flushing water pipe 41 is printed with a scale table on the surface, and when the sludge pipe 2 is manually inserted, the insertion depth can be determined through the scale table on the surface, so as to determine the position of the bottom of the flushing water pipe 41 in the sludge pipe 2 or the sludge hopper 3.

[0026] The electromagnetic valve 44 is electrically connected with the external PLC control system, and the electromagnetic valve 44 is controlled by the PLC to be opened and closed at a fixed time, so as to realize the automatic flushing function.

[0027] The support limiting device 42 is made of PPR material, which can be elastically bent in the sludge pipe 2 and inserted into the sludge hopper 3, and the PPR water pipe is used, so that the processing and installation are convenient.

[0028] In the embodiment, the support limiting device 42 includes two right-angle support frames 421 arranged on the top frame of the secondary sedimentation tank, the two right-angle support frames 421 are symmetrically arranged, and the upper part is rotatably connected with a connecting cylinder 423 through a fixed connecting shaft 422, the connecting cylinder 423 is internally provided with an arc-shaped clamping plate 424, the arc-shaped clamping plate 424 is fixed with guide shafts 426 at the upper and lower parts, the two guide shafts 426 are movably penetrated through the connecting cylinder 423, and the arc-shaped clamping plate 424 is rotatably connected with an adjusting bolt 425 at the middle part, and the adjusting bolt 425 is threadedly penetrated through the connecting cylinder 423 and extends out.

[0029] Specifically, the two right-angle support frames 421 support the connecting cylinder 423, the flushing water pipe 41 passes through the connecting cylinder 423 and enters the sludge pipe, when it is needed to flush the sludge pipe or the sludge hopper 3 at a certain position regularly, the flushing pipe can be inserted to a specified depth, the scale table is determined, then the adjusting bolt 425 is gripped and rotated, the arc-shaped clamping plate 424 is driven to move in the connecting cylinder 423 and abuts against the flushing water pipe 41, so that manual support is not needed, and therefore the flushing water pipe 41 can be conveniently moved, and the sludge hopper 3 and the sludge pipe 2 are positioned and flushed at any position.

[0030] The flushing water pipe 41 passes through the connecting cylinder 423, the arc-shaped clamping plate 424 abuts against the flushing water pipe 41, and the contact surface between the arc-shaped clamping plate 424 and the flushing water pipe 41 is provided with concave-convex textures, the concave-convex textures of the arc-shaped clamping plate 424 have a large frictional force with the flushing water pipe 41, so that the flushing water pipe 41 is not easy to displace.

[0031] In the embodiment, the flushing water pipe 41 can be connected with the gas conveying pipe through the external joint 45, and the gas conveying pipe is connected with the external gas pump to convey gas, in the working process, high-pressure gas is conveyed into the flushing water pipe 41 by the gas pump, the high-pressure gas is sprayed out to clean the sludge pipe 2 or the sludge hopper 3, so that the blocked part is dredged and the caked sludge is removed.

[0032] Working principle:

[0033] In use, the support limiting device 42 is placed on the top frame of the secondary sedimentation tank at the position of the sludge discharge pipe port 21, the flushing water pipe 41 is manually held and inserted into the sludge discharge pipe port 21 through the support limiting device 42, the flushing water pipe 41 enters the sludge discharge pipe 2 and can be inserted into the sludge hopper 3 along the sludge discharge pipe 2, the insertion depth is determined by the scale on the outer surface, so as to determine the position of the bottom of the flushing water pipe 41 in the sludge discharge pipe 2 or the sludge hopper 3, the electromagnetic valve 44 is controlled by the PLC control system and can be opened and closed at a fixed time, when it is necessary to clean the sludge discharge pipe 2, the PLC control system controls the electromagnetic valve 44 to be opened, so that the water in the water conveying pipeline in the external plant area flows into the flushing pipeline, the high-pressure water is sprayed from the flushing water pipe 41 to flush the sludge discharge pipe 2, and the sludge hopper 3 can also be flushed, the sludge discharge pipe 2 is unblocked and the sludge hopper 3 is unblocked, and the sludge return channel is unblocked, the device does not need to damage the original pipeline during installation and use, and is convenient to remove and restore to the original state for other ways of modification, and the water conveying uses the plant reuse water pipeline, without additional cost

[0034] Two right-angle support frames 421 support the connecting cylinder 423, the flushing water pipe 41 passes through the connecting cylinder 423 and enters the sludge pipe, when it is necessary to flush the sludge pipe or the sludge hopper 3 at a certain position by the flushing water pipe 41, the flushing pipe can be inserted to a specified depth, the scale is determined, then the adjusting bolt 425 is held and rotated to drive the arc-shaped clamping plate 424 to move in the connecting cylinder 423 and abut against the flushing water pipe 41 for limiting, so that manual support is not needed, therefore the flushing water pipe 41 can be conveniently moved, and the positioning flushing of the sludge hopper 3 and the sludge discharge pipe 2 at any position is realized.

Claims

1. A sludge flushing and unblocking device for a secondary sedimentation tank sludge discharge pipe, comprising a sludge channel (1), a pipe flushing device (4), and a sludge hopper (3) disposed at the bottom of the secondary sedimentation tank, wherein a sludge discharge pipe (2) is inserted into the top of the sludge hopper (3), and a sludge discharge outlet pipe (22) is fixedly connected to the middle of the sludge discharge pipe (2), and the sludge discharge outlet pipe (22) is connected to the sludge channel (1), characterized in that: The sludge discharge pipe (2) is provided with a sludge discharge pipe port (21) penetrating through the top frame of the secondary sedimentation tank, and the pipe flushing device (4) is inserted into the sludge discharge pipe (2) through the sludge discharge pipe port (21); the pipe flushing device (4) comprises a supporting and limiting device (42) mounted on the top frame of the secondary sedimentation tank, a flushing water pipe (41) penetratingly inserted into the supporting and limiting device (42), the flushing water pipe (41) being inserted into the sludge discharge pipe (2) through the sludge discharge pipe port (21), and a manual ball valve (43) and an electromagnetic valve (44) being fixedly installed on the supporting and limiting device (42), and an external connector (45) being threadedly fixed on the top of the supporting and limiting device (42).

2. The device according to claim 1, wherein The flushing water pipe (41) is connected with a water conveying pipe in the external factory area water system through the external connector (45).

3. The device according to claim 1, wherein The electromagnetic valve (44) is electrically connected with an external PLC control system.

4. The device according to claim 1, wherein The supporting and limiting device (42) is made of PPR material and can be elastically bent in the sludge discharge pipe (2) and inserted into the sludge hopper (3).

5. The device according to claim 1, wherein The supporting and limiting device (42) comprises two right-angle supporting frames (421) arranged on the top frame of the secondary sedimentation tank, the two right-angle supporting frames (421) being symmetrically arranged and being rotatably connected with a connecting cylinder (423) through a fixed connecting shaft (422) at the upper portion, an arc-shaped clamping plate (424) being arranged in the connecting cylinder (423), guide shafts (426) being fixedly arranged on the arc-shaped clamping plate (424), the two guide shafts (426) movably penetrating through the connecting cylinder (423), and an adjusting bolt (425) being rotatably connected with the arc-shaped clamping plate (424) at the middle portion and extending out of the connecting cylinder (423) in a threaded manner.

6. The device according to claim 1, wherein The flushing water pipe (41) penetrates through the connecting cylinder (423) and abuts against the arc-shaped clamping plate (424), and the contact surface between the arc-shaped clamping plate (424) and the flushing water pipe (41) is provided with concave-convex textures.

7. The device according to claim 6, characterized in that, The flushing water pipe (41) can be connected with a gas conveying pipe through the external connector (45), and the gas conveying pipe is connected with an external gas pump for gas conveying.

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