Device for cleaning scum at tail end of water inlet canal of peripheral water inlet radial-flow sedimentation tank

Abstract

The utility model relates to the technical field of municipal sewage treatment, in particular to a peripheral water inlet radial-flow sedimentation tank water inlet canal tail end scum cleaning device which comprises a scum storage box, a water filtering plate is movably installed on the lower portion in the scum storage box, and edge strips are fixedly installed at the top ends of the two sides of the water filtering plate. The first electric push rod, the water filtering plate, the second electric push rod, the push plate and the slag discharging opening are used in cooperation, the first electric push rod lifts the water filtering plate to the level of the slag discharging opening, then the second electric push rod is started, and the push plate pushes scum on the water filtering plate to the position of the slag discharging opening from one end of the inner side of the slag storage box till the scum is discharged from the slag discharging opening. During daily scum removal, a collecting vessel can be arranged below the scum discharge port and used for collecting scum in a centralized mode, after scum removal, the water filtering plate is controlled to descend and return, and then the scum can be recycled, so that scum removal can be started, the labor intensity of workers is reduced, and a single person can operate the scum removal device.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal sewage treatment, in particular to a scum cleaning device at the end of the water inlet channel of a peripheral inlet radial flow sedimentation tank. Background Technique

[0002] The radial flow secondary sedimentation tank is applicable to medium and large sewage treatment plants. The peripheral inlet type is a common water distribution method for the radial flow secondary sedimentation tank. During the actual operation process, as the mixed liquid is distributed along the water distribution channel, a large amount of granular waste residue floats onto the water distribution channel and gradually accumulates at the end of the water distribution channel. If a large amount of scum is not cleaned and returns to the front end of the process through the weir gate, it will have an adverse impact on the equipment and structures in the entire process section, and the scum needs to be separated.

[0003] The existing treatment methods usually take measures for blocking, and then manually salvage and clean up later. When manually cleaning the scum, the method used is to fish out the scum with a long-handled iron tool. Usually, two people cooperate to operate, which is relatively inconvenient. Using the method of manual slag fishing has a large labor intensity, consumes a lot of time, cannot be operated by a single person, and the subsequent removal of the scum is also relatively troublesome. Content of the Utility Model

[0004] The purpose of the utility model is to provide a scum cleaning device at the end of the water inlet channel of a peripheral inlet radial flow sedimentation tank to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A scum cleaning device at the end of the water inlet channel of a peripheral inlet radial flow sedimentation tank, comprising:

[0007] A slag storage tank, inside which a water filtering plate is movably installed below, side strips are fixedly installed at the top ends on both sides of the water filtering plate, and first electric push rods are symmetrically arranged on both sides at the top of the slag storage tank. The output shafts of the two first electric push rods pass through the slag storage tank and are fixedly connected to the middle of the side strips;

[0008] A slag discharge port is arranged outside one side at the top of the slag storage tank. A push plate is movably installed above the inside of the slag storage tank. Second electric push rods are symmetrically arranged outside both ends of the side of the slag storage tank close to the slag discharge port. The output shafts of the two second electric push rods pass through the slag storage tank and are fixedly connected to both sides of the push plate.

[0009] Preferably, a machine box is further arranged on one side at the top of the slag storage tank. A centrifugal fan is fixedly installed inside the machine box. One end of the centrifugal fan communicates with the upper inside of the slag storage tank, and the other end of the centrifugal fan communicates with the outside of the machine box;

[0010] Preferably, a filter screen is provided directly below the air suction port of the centrifugal fan near the slag storage tank;

[0011] Preferably, the bottom end of the slag storage tank is of a conical structure and is connected with a check valve;

[0012] Preferably, an inlet is connected to the upper end of one side of the slag storage tank away from the slag discharge port, and the inlet is higher than the slag discharge port;

[0013] Preferably, the push plate is on the same horizontal line as the slag discharge port.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the floating slag cleaning device at the end of the water inlet channel of the peripheral water inlet radial flow sedimentation tank of the present utility model, through the coordinated use of the first electric push rod, the water filtering plate, the second electric push rod, the push plate and the slag discharge port, the first electric push rod raises the water filtering plate to be horizontal with the slag discharge port, and then the second electric push rod is started. The push plate pushes the floating slag on the water filtering plate from one end inside the slag storage tank to the position of the slag discharge port until the floating slag is discharged from the slag discharge port. During daily slag cleaning, a collection container can be arranged below the slag discharge port for centralized collection of floating slag. After the floating slag is cleaned, controlling the water filtering plate to descend and return to its original position can be recycled again. In this way, the floating slag can be cleaned, reducing the labor intensity and can be operated by a single person.

[0016] In the present utility model, through the coordinated use of the slag storage tank, the water filtering plate, the centrifugal fan and the check valve, the centrifugal fan can extract the air in the slag storage tank to form a negative pressure. Under the negative pressure state inside the slag storage tank, the check valve at the bottom will automatically close, closing the discharge port at the bottom end of the slag storage tank. The floating slag on the surface of the water distribution channel first enters the slag storage tank through the bell mouth and the hose for the collection of floating slag. After the collection of floating slag is completed once, the centrifugal fan is turned off and the check valve automatically opens. The floating slag can be collected automatically through negative pressure, improving the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall front view structural schematic diagram of the present utility model;

[0018] Figure 2 is the overall sectional view structural schematic diagram of the present utility model;

[0019] Figure 3 is the top view structural schematic diagram of the water filtering plate of the present utility model;

[0020] Figure 4 is the Figure 1 magnified schematic diagram at A in the present utility model.

[0021] In the figure: 1. slag storage tank; 2. water filter plate; 3. side strip; 4. first electric push rod; 5. slag discharge port; 6. push plate; 7. second electric push rod; 8. chassis; 9. centrifugal fan; 10. filter screen; 11. check valve; 12. inlet. Detailed implementation mode

[0022] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1-4 shown, a technical solution provided by the present invention:

[0024] A scum cleaning device at the end of the inlet channel of a peripheral water inlet radial flow sedimentation tank includes a slag storage tank 1. A water filter plate 2 is movably installed below the interior of the slag storage tank 1. Side strips 3 are fixedly installed at the top ends on both sides of the water filter plate 2. First electric push rods 4 are symmetrically arranged on both sides of the top end of the slag storage tank 1. The output shafts of the two first electric push rods 4 pass through the slag storage tank 1 and are fixedly connected to the middle of the side strip 3; a slag discharge port 5 is arranged outside one side of the top end of the slag storage tank 1. A push plate 6 is movably installed above the interior of the slag storage tank 1. Second electric push rods 7 are symmetrically arranged outside both ends of the side of the slag storage tank 1 close to the slag discharge port 5. The output shafts of the two second electric push rods 7 pass through the slag storage tank 1 and are fixedly connected to both sides of the push plate 6. The push plate 6 is on the same horizontal line as the slag discharge port 5. The bottom end of the slag storage tank 1 is of a conical structure and is connected to a check valve 11;

[0025] After the scum and sewage on the water filter plate 2 are separated and treated, the water in the scum is drained out through the check valve 11, while the scum remains on the water filter plate 2. At this time, the first electric push rod 4 is started, and the first electric push rod 4 lifts the water filter plate 2 to be horizontal with the slag discharge port 5. Then the second electric push rod 7 is started, and the push plate 6 pushes the scum on the water filter plate 2 from one end inside the slag storage tank 1 to the position of the slag discharge port 5 until the scum is discharged from the slag discharge port 5. During daily slag cleaning, a collection container can be set below the slag discharge port 5 for centralized collection of scum. After the scum is cleaned, controlling the water filter plate 2 to descend and return to its position can be recycled again. In this way, the scum can be cleaned, reducing the labor intensity of manual work, and can be operated by a single person.

[0026] As Figure 2 and Figure 4As shown in the figure, on one side of the top end of the slag storage tank 1, there is also a machine box 8. Inside the machine box 8, a centrifugal fan 9 is fixedly installed. One end of the centrifugal fan 9 communicates with the upper inner part of the slag storage tank 1, and the other end of the centrifugal fan 9 communicates with the outside of the machine box 8. Below the air suction port of the centrifugal fan 9 in the slag storage tank 1, there is a filter screen 10;

[0027] During operation, the centrifugal fan 9 can extract the air in the slag storage tank 1 to form a negative pressure. Under the negative pressure state inside the slag storage tank 1, the check valve 11 at the bottom will automatically close, closing the discharge port at the bottom end of the slag storage tank 1. The floating slag on the surface of the water distribution channel first enters the slag storage tank 1 through the bell mouth and the hose for the collection of floating slag. After the first collection of floating slag is completed, the centrifugal fan 9 is turned off, and the check valve 11 automatically opens. By automatically collecting floating slag through negative pressure, the collection efficiency can be improved.

[0028] As Figure 2 shown in the figure, on the upper side of one side of the slag storage tank 1 away from the slag discharge port 5, there is a connection port 12, and the connection port 12 is higher than the slag discharge port 5; the connection port 12 is higher than the slag discharge port 5, so that during the process of cleaning the floating slag, the floating slag is not likely to flow back from the connection port 12.

[0029] Working principle: When working, the centrifugal fan 9 is started. The centrifugal fan 9 extracts the air in the slag storage tank 1 to form a negative pressure. Under the negative pressure state inside the slag storage tank 1, the check valve 11 at the bottom will automatically close, closing the discharge port at the bottom end of the slag storage tank 1. The floating slag on the surface of the water distribution channel first enters the slag storage tank 1 through the bell mouth and the hose for the collection of floating slag. After the first collection of floating slag is completed, the centrifugal fan 9 is turned off, and the check valve 11 automatically opens. The floating slag and sewage on the water filtering plate 2 are separated and processed, the water in the floating slag is drained out and discharged from the check valve 11, while the floating slag remains on the water filtering plate 2. At this time, the first electric push rod 4 is started, and the first electric push rod 4 raises the water filtering plate 2 to be level with the slag discharge port 5. Then the second electric push rod 7 is started, and the push plate 6 pushes the floating slag on the water filtering plate 2 from one end inside the slag storage tank 1 towards the position of the slag discharge port 5 until the floating slag is discharged from the slag discharge port 5. During daily slag cleaning, a collection container can be set below the slag discharge port 5 for centralized collection of floating slag. After the floating slag is cleaned, controlling the water filtering plate 2 to descend and return to its original position can be used again in a cycle.

[0030] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank, characterized in that: include: A slag storage box (1), wherein a water filter plate (2) is movably installed at the lower part of the interior of the slag storage box (1), and side strips (3) are fixedly installed at the top ends of both sides of the water filter plate (2), and first electric push rods (4) are symmetrically arranged at both sides of the top end of the slag storage box (1), and the output shafts of the two first electric push rods (4) pass through the slag storage box (1) and are fixedly connected to the middle part of the side strip (3); A slag discharge port (5) is arranged outside one side of the top end of the slag storage box (1), a push plate (6) is movably installed on the upper part of the interior of the slag storage box (1), and second electric push rods (7) are symmetrically arranged on the outside at both ends of one side of the slag storage box (1) close to the slag discharge port (5), and the output shafts of the two second electric push rods (7) pass through the slag storage box (1) and are fixedly connected to the two sides of the push plate (6).

2. The scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank according to claim 1 is characterized by: A machine box (8) is also provided on one side of the top end of the slag storage box (1), and a centrifugal fan (9) is fixedly installed inside the machine box (8), one end of the centrifugal fan (9) is connected to the inside of the upper end of the slag storage box (1), and the other end of the centrifugal fan (9) is connected to the outside of the machine box (8).

3. The scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank according to claim 2 is characterized by: The slag storage box (1) is provided with a filter screen (10) just below the air outlet of the centrifugal fan (9).

4. The scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank according to claim 1 is characterized by: The bottom end of the slag storage box (1) is a conical structure and is connected to a check valve (11).

5. The scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank according to claim 1 is characterized by: An upper end of the slag storage box (1) on a side away from the slag discharge port (5) is connected to an inlet (12), and the inlet (12) is higher than the slag discharge port (5).

6. The scum cleaning device at the end of the water inlet channel of a peripheral water inlet radial flow sedimentation tank according to claim 1 is characterized by: The push plate (6) and the slag discharge port (5) are on the same horizontal line.

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