Honeycomb filler cleaning device for inclined plate sedimentation tank

Abstract

The utility model discloses a honeycomb filler cleaning device for an inclined plate sedimentation tank and belongs to the technical field of sewage treatment. The device comprises a cleaning water tank, a cleaning water pump, an inclined plate sedimentation tank and an inclined plate cleaning mechanism, the inclined plate cleaning mechanism comprises a first cleaning pipe and a second cleaning pipe, a pipe end connecting block at the end is connected with a mud suction vehicle, and the cleaning mechanism is driven by the mud suction vehicle to move to clean an inclined plate; the supporting rigidity between the two pipes is improved through the arrangement of the supporting frame between the pipes. The cleaning pipe is divided into an upper-layer spray pipe and a lower-layer spray pipe through a lower-layer cleaning valve; under the condition of the same water treatment amount, the larger the sedimentation area is, the higher the efficiency of the sedimentation tank is. A group of inclined plates are additionally arranged in the sedimentation tank, so that the sedimentation area is increased, the sedimentation time is shortened, meanwhile, water flow between the plates is changed into laminar flow from turbulent flow, and the sedimentation efficiency is also improved. The device is simple in structure, convenient to operate and short in cleaning time, the inclined plate filler blocked by dirt can be quickly recovered, and the blockage of the suction dredger can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a honeycomb filler cleaning device for a sewage inclined plate sedimentation tank. Background Art

[0002] There is a shallow sedimentation area between every two parallel inclined plates of the inclined plate sedimentation tank, so that the treated water (or wastewater) and the settled sludge move and separate in the shallow sedimentation layer. According to the force of their mutual movement, there are three different separation methods: co-current flow, counter-current flow and lateral flow. The inclined plate sedimentation tank uses the principle of "shallow sedimentation" to shorten the particle sedimentation distance, thereby shortening the sedimentation time, and increasing the sedimentation area of ​​the sedimentation tank, thereby improving the treatment efficiency.

[0003] Inclined plate sedimentation tanks generally use mechanical sludge discharge, which easily forms dead corners at the edge and end of the sedimentation tank. There is a lot of sludge in the honeycomb filler in this part. At the same time, the inlet water of some inclined plate sedimentation tanks is a mixed solution of aeration tanks with a certain concentration. The microorganisms rich in activated sludge will gradually attach and grow on the inner wall of the honeycomb inclined plate, thus forming a biofilm of varying thickness, which will cause the inclined plate to be blocked over time. In actual operation, if the sludge on the top and inner wall of the inclined plate honeycomb filler and the mud columns floating on the pool surface are not cleaned in time, they will accumulate thicker and thicker, and the "short flow" phenomenon will occur locally. The flow rate increases when the water volume remains unchanged, causing the sludge originally deposited on the inclined plate to rise again, and the stability of the flocs is affected, resulting in the flocs that have been formed in the early stage being easily broken into small flocs again. At the same time, the water quality of the inclined plate effluent deteriorates, causing the sludge suction vehicle to jam or stop, and in severe cases, the inclined tube filler may be deformed or partially collapsed. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage inclined plate sedimentation tank honeycomb filler cleaning device to solve the current inclined plate sedimentation tank filler clogging problem mentioned in the above background technology. The device has a simple structure and low manufacturing cost, which can not only extend the service life of the inclined plate sedimentation tank filler, but also reduce operating costs and workload.

[0005] To achieve the above object, the utility model provides the following technical solutions: a device for cleaning honeycomb filler in an inclined plate sedimentation tank, the device comprising a cleaning water tank, a cleaning water pump and an inclined plate sedimentation tank, characterized in that an upper honeycomb filler inclined plate and a lower honeycomb filler inclined plate are arranged in the inclined plate sedimentation tank, the cleaning water tank is connected to the inclined plate cleaning mechanism through a water tank outlet pipe via a cleaning water pump;

[0006] The inclined plate cleaning mechanism includes a first cleaning pipe and a second cleaning pipe, the upper ends of the first cleaning pipe and the second cleaning pipe are connected by a pipe end connecting block, and the middle of the first cleaning pipe and the second cleaning pipe is supported by an inter-pipe support frame; the cleaning pipe is divided into an upper nozzle and a lower nozzle by a lower cleaning valve, an upper nozzle is arranged on the upper nozzle, and a lower nozzle is arranged on the lower nozzle.

[0007] The first cleaning pipe is provided with a first cleaning valve, and the second cleaning pipe is provided with a second cleaning valve.

[0008] A water inlet is arranged at the bottom of one side of the inclined plate sedimentation tank, and a water outlet is arranged at the top of the other side.

[0009] The upper honeycomb filler inclined plate and the lower honeycomb filler inclined plate form an angle of 45 to 60 degrees with the horizontal plane.

[0010] The first cleaning pipe, the second cleaning pipe, the upper honeycomb filler inclined plate, and the lower honeycomb filler inclined plate have the same inclination angle.

[0011] A pressure gauge is arranged on the water outlet pipe of the water tank, and the pressure gauge, the cleaning water pump and the controller are electrically connected.

[0012] The pipe end connection block is connected to a mud suction vehicle of the inclined plate sedimentation tank, and the mud suction vehicle drives the inclined plate cleaning mechanism to move.

[0013] The beneficial effects of the utility model are as follows: the device comprises a cleaning water tank, a cleaning water pump, an inclined plate sedimentation tank and an inclined plate cleaning mechanism, the inclined plate cleaning mechanism comprises a first cleaning pipe and a second cleaning pipe, the pipe end connection block at the end is connected to a sludge suction vehicle, and the cleaning mechanism is driven to move by the sludge suction vehicle to clean the inclined plate; the setting of the inter-pipe support frame increases the support stiffness between the two pipes. The cleaning pipe is divided into an upper and lower layer nozzle through the lower cleaning valve, and a nozzle is arranged on the nozzle; the switch of the lower cleaning valve controls whether to perform single-layer cleaning, and the switch of the cleaning valve on different cleaning pipes controls whether to perform single-tube cleaning, and the switch combination of different valves realizes a variety of cleaning schemes. Under the same water treatment conditions, the larger the sedimentation area of ​​the sedimentation tank, the higher the efficiency of the sedimentation tank. Adding a group of inclined plates in the sedimentation tank not only increases the sedimentation area, but also shortens the sedimentation time. At the same time, the water flow between the plates is also changed from turbulent flow to laminar flow, which also improves the sedimentation efficiency. The inclined plate is installed at 45 to 60 degrees with the horizontal plane to facilitate timely mud discharge.

[0014] The device is welded on the sludge suction truck. The upper and lower nozzles correspond to each other and are consistent with the installation angle of the inclined plate. Through the reciprocating motion of the sludge suction truck, the device is driven to repeatedly flush the sludge-clogged area in the honeycomb filler. At the same time, the upper and lower nozzles can clean the same inclined pipe in both directions, shake off the impurities in the honeycomb filler, increase the sewage retention time, improve the sedimentation efficiency of the inclined plate sedimentation tank, and greatly improve the water quality of the inclined plate sedimentation tank. The device monitors the cleaning pressure through a pressure gauge and realizes automatic start and stop or frequency conversion of the water pump to prevent excessive pressure from damaging the inclined plate and cleaning pipeline. At the same time, the design of the water pump outlet hose can make the cleaning of severely clogged honeycomb fillers more flexible. The device has a simple structure, is easy to operate, and has a short cleaning time. It can quickly restore the clogged inclined plate filler and reduce the jamming of the sludge suction truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a structural schematic diagram of a honeycomb filler cleaning device for an inclined plate sedimentation tank.

[0016] In the figure: 1. cleaning water tank, 2. cleaning water pump, 3. inclined plate sedimentation tank, 3a. water inlet, 3b. water outlet, 3c. upper honeycomb filler inclined plate, 3d. lower honeycomb filler inclined plate, 4. inclined plate cleaning mechanism, 4a. first cleaning pipe, 4b. second cleaning pipe, 4c. pipe end connecting block, 4d. inter-pipe support frame, 41. upper spray pipe, 42. upper nozzle, 43. lower cleaning valve, 44. lower spray pipe, 45. lower nozzle, 5. pressure gauge, 6. controller, 7. water tank outlet pipe. DETAILED DESCRIPTION

[0017] The present invention is described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 A device for cleaning honeycomb filler in an inclined plate sedimentation tank is shown, the device comprising a cleaning water tank 1, a cleaning water pump 2 and an inclined plate sedimentation tank 3, a water inlet 3a is arranged at the bottom of one side of the inclined plate sedimentation tank 3, and a water outlet 3b is arranged at the top of the other side. An upper honeycomb filler inclined plate 3c and a lower honeycomb filler inclined plate 3d are arranged in the inclined plate sedimentation tank 3, and the upper honeycomb filler inclined plate 3c and the lower honeycomb filler inclined plate 3d are at an angle of 45 to 60 degrees to the horizontal plane.

[0019] The cleaning water tank 1 is connected to the inclined plate cleaning mechanism 4 by the water tank outlet pipe 7 through the cleaning water pump 2. The inclined plate cleaning mechanism 4 includes a first cleaning pipe 4a and a second cleaning pipe 4b. The first cleaning pipe 4a and the second cleaning pipe 4b have the same inclination angle as the upper honeycomb filler inclined plate 3c and the lower honeycomb filler inclined plate 3d. The nozzle with an inclination angle should be consistent with the installation inclination angle of the honeycomb filler, and the upper and lower layers are one-to-one corresponding. The first cleaning pipe 4a is provided with a first cleaning valve 4e, and the second cleaning pipe 4b is provided with a second cleaning valve 4f.

[0020] The upper ends of the first cleaning pipe 4a and the second cleaning pipe 4b are connected by a pipe end connection block 4c, and the pipe end connection block 4c is connected to the mud suction vehicle of the inclined plate sedimentation tank 3, and the mud suction vehicle drives the inclined plate cleaning mechanism 4 to move. The middle of the first cleaning pipe 4a and the second cleaning pipe 4b is supported by an inter-pipe support frame 4d; the cleaning pipe is divided into an upper layer spray pipe 41 and a lower layer spray pipe 44 through a lower layer cleaning valve 43, and the upper layer spray pipe 41 is provided with an upper layer nozzle 42, and the lower layer spray pipe 44 is provided with a lower layer nozzle 45.

[0021] A pressure gauge 5 is provided on the water tank outlet pipe 7, and the pressure gauge 5, the cleaning water pump 2 and the controller 6 are electrically connected. The pressure gauge 5 adopts an electric contact pressure gauge.

[0022] The cleaning process when the above technical solution is used is as follows: fill the cleaning water tank 1 with cleaning water, start the cleaning water pump 2, open the first cleaning valve 4e and the second cleaning valve 4f, close the lower cleaning valve 43, and the cleaning water flows into the water tank outlet pipe 7 through the cleaning water pump 2, and then enters the upper nozzle 41 to clean the upper honeycomb filler inclined plate 3c by the upper nozzle 42, and the cleaned sewage flows into the coarse grid through the sewage pipe of the inclined plate sedimentation tank. The cleaning water flows from the upper layer to the lower layer, and at the same time, the lower cleaning valve 43 is opened, and the water enters the lower nozzle 44 to clean the lower honeycomb filler inclined plate 3d by the lower nozzle 45, and the cleaned sewage flows into the coarse grid through the sewage pipe of the inclined plate sedimentation tank.

[0023] The pressure gauge 5 on the water tank outlet pipe 7 is linked to the cleaning water pump 2 through the controller 6. When cleaning the honeycomb filler, if the outlet pressure of the cleaning water pump 2 exceeds the safety pressure threshold, the cleaning water pump 2 is controlled to stop for protection or automatically reduce the frequency through the controller 6. The controller 6 detects whether the safety pressure threshold is exceeded and controls the cleaning water pump to stop or reduce the frequency, which are all existing technologies and no improvement has been made.

[0024] In practical applications, the upper layer can be cleaned or the upper and lower layers can be cleaned simultaneously by controlling the switch of the lower cleaning valve 43; the switch of the first cleaning valve 4e and the second cleaning valve 4f can clean a single layer of inclined plates or two layers of inclined plates. The water tank outlet pipe 7 is a hose for easy installation and connection. The cleaning frequency is determined according to the blockage of the honeycomb filler and the operation of the sludge suction truck.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for cleaning honeycomb fillers in an inclined plate sedimentation tank, the device comprising a cleaning water tank (1), a cleaning water pump (2) and an inclined plate sedimentation tank (3), characterized in that: An upper honeycomb filler inclined plate (3c) and a lower honeycomb filler inclined plate (3d) are provided in the inclined plate sedimentation tank (3); the cleaning water tank (1) is connected to the inclined plate cleaning mechanism (4) through a cleaning water pump (2) and a water tank outlet pipe (7); The inclined plate cleaning mechanism (4) comprises a first cleaning pipe (4a) and a second cleaning pipe (4b); the upper ends of the first cleaning pipe (4a) and the second cleaning pipe (4b) are connected via a pipe end connecting block (4c); the middle of the first cleaning pipe (4a) and the second cleaning pipe (4b) are supported by an inter-pipe support frame (4d); the cleaning pipes are divided into an upper layer spray pipe (41) and a lower layer spray pipe (44) via a lower layer cleaning valve (43); an upper layer nozzle (42) is provided on the upper layer spray pipe (41), and a lower layer nozzle (45) is provided on the lower layer spray pipe (44).

2. The honeycomb filler cleaning device for an inclined plate sedimentation tank according to claim 1, characterized in that: A first cleaning valve (4e) is provided on the first cleaning pipe (4a), and a second cleaning valve (4f) is provided on the second cleaning pipe (4b).

3. The honeycomb filler cleaning device for inclined plate sedimentation tank according to claim 1, characterized in that: A water inlet (3a) is arranged at the bottom of one side of the inclined plate sedimentation tank (3), and a water outlet (3b) is arranged at the top of the other side.

4. The honeycomb filler cleaning device for an inclined plate sedimentation tank according to claim 1, characterized in that: The upper honeycomb filler inclined plate (3c) and the lower honeycomb filler inclined plate (3d) form an angle of 45 to 60 degrees with the horizontal plane.

5. The honeycomb filler cleaning device for an inclined plate sedimentation tank according to claim 1, characterized in that: The first cleaning pipe (4a), the second cleaning pipe (4b), the upper honeycomb filler inclined plate (3c), and the lower honeycomb filler inclined plate (3d) have the same inclination angle.

6. The honeycomb filler cleaning device for inclined plate sedimentation tank according to claim 1, characterized in that: A pressure gauge (5) is provided on the water tank outlet pipe (7), and the pressure gauge (5), the cleaning water pump (2) and the controller (6) are electrically connected.

7. The device for cleaning honeycomb filler in an inclined plate sedimentation tank according to claim 1, characterized in that: The pipe end connection block (4c) is connected to a sludge suction vehicle of the inclined plate sedimentation tank (3), and the sludge suction vehicle drives the inclined plate cleaning mechanism (4) to move.

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