Sludge discharge device for sewage treatment

Abstract

The utility model discloses a sludge discharge device for sewage treatment. The sludge discharge device comprises a sedimentation tank, a suction pipe, a plug, a vacuum pump, a vacuum tank, a sliding shaft, an electromagnet, a spring, a ferromagnetic metal plate and a basin, the bottom of the sedimentation tank is funnel-shaped; one end of the suction pipe is positioned at the lowest point of the bottom of the sedimentation tank; a feeding hole is formed in the outer surface of the vacuum tank, and the edge of a port at the other end of the suction pipe is hermetically connected with the edge of the feeding hole; the lower end of the vacuum tank is open, and springs for resetting are arranged on the outer surfaces of the ferromagnetic metal plate and the vacuum tank; and the lower end opening of the vacuum tank is in contact with the connecting basin. Continuous sludge discharge can be achieved, sludge suction is quicker and more tight in a vacuum negative pressure mode, the structure is simple, the part located below sewage does not need to be maintained regularly, and cost is saved; the underwater part is also a suction pipe, so that the structure is simple, the replacement is convenient, and the maintenance and replacement can be realized without emptying the sedimentation tank.

Description

Technical Field

[0001] This utility model relates to a sludge discharge device, specifically a sludge discharge device for sewage treatment. Background Technology

[0002] Wastewater sedimentation tanks play a crucial role in the entire wastewater treatment process. Current sludge removal mechanisms are all set up with suction or lifting mechanisms inside the sedimentation tank. The current sludge removal mechanism also has a relatively complex structure at the bottom of the tank, requiring regular maintenance and replacement of corroded parts. The main problem is that the underwater part is more troublesome to maintain and repair, requiring the sedimentation tank to be emptied for maintenance and repair. Utility Model Content

[0003] The purpose of this invention is to provide a sludge removal device for wastewater treatment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sludge removal device for wastewater treatment includes a sedimentation tank, a suction pipe, a plug, a vacuum pump, a vacuum tank, a sliding shaft, an electromagnet, a spring, a ferromagnetic metal plate, and a basin. The bottom of the sedimentation tank is funnel-shaped, and one end of the suction pipe is located at the lowest point of the sedimentation tank. An inlet is opened on the outer surface of the vacuum tank, and the other end of the suction pipe is sealed to the edge of the inlet. The lower end of the vacuum tank is open, and an air extraction hole is opened at the upper end of the vacuum tank, connected to the air extraction port of the vacuum pump. A plug is inserted at the inlet of the vacuum tank, and the plug is connected to one end of the sliding shaft. The other end of the sliding shaft passes through a groove on the surface of the vacuum tank and connects to the ferromagnetic metal plate located outside the vacuum tank. Simultaneously, an electromagnet is fixedly connected to the outer surface of the vacuum tank, with the electromagnet's adsorption end facing the ferromagnetic metal plate. Springs for resetting are provided on the ferromagnetic metal plate and the outer surface of the vacuum tank. The lower opening of the vacuum tank contacts and connects to the basin.

[0006] As a further embodiment of this utility model: when the electromagnet is energized, it attracts and connects to the ferromagnetic metal plate, and the plug is sealed and connected to the feed inlet by the sliding shaft; when the electromagnet is de-energized, it separates from the ferromagnetic metal plate under the action of the spring reset force, at which time the plug separates from the feed inlet and a space for material to flow out is created between the two.

[0007] As a further embodiment of this invention: a permanent magnet is embedded at the edge of the lower opening of the vacuum tank, and the permanent magnet is used to attract the edge of the basin.

[0008] As a further embodiment of this invention: the basin is made of ferromagnetic metal and its surface is coated with Teflon.

[0009] As a further embodiment of this utility model: multiple basins are provided, and the surface of each basin is rotatably connected to one end of a corresponding bracket via a pin. The other end of the bracket is connected to the surface of a turntable, and the rotation center of the turntable is connected to the output end of the indexing turntable. The surface of the basin is rotatably connected to one end of a telescopic rod, and the other end of the telescopic rod is rotatably connected to the bottom of the turntable. When the telescopic rod extends, it pushes the basin to rotate around the pin until it is upright.

[0010] Compared with the prior art, the beneficial effects of this utility model are: this utility model can achieve continuous sludge discharge, the vacuum negative pressure method can suck up sludge faster and more quickly, the structure is simple, the part located below the sewage does not need regular maintenance, saving costs; the underwater part is also a suction pipe, the structure is simple, and it is easy to replace, and maintenance and replacement can be achieved without emptying the sedimentation tank. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a sludge removal device for wastewater treatment.

[0012] Figure 2 This is a schematic diagram of the structure of multiple basins in a sludge removal device for wastewater treatment. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-2 In this embodiment of the utility model, a sludge removal device for sewage treatment includes a sedimentation tank 1, a suction pipe 2, a plug 3, a vacuum pump 4, a vacuum tank 5, a sliding shaft 6, an electromagnet 7, a spring 8, a ferromagnetic metal plate 9, a turntable 10, a telescopic rod 11, a bracket 12, a basin 13, an indexing turntable 14, and a permanent magnet 15.

[0015] The bottom of the sedimentation tank 1 is funnel-shaped, and one end of the suction pipe 2 is located at the lowest point of the bottom of the sedimentation tank 1. The outer surface of the vacuum tank 5 has a feed inlet, and the other end of the suction pipe 2 is sealed to the edge of the feed inlet. The vacuum tank 5 is fixed to the edge of the sedimentation tank 1 by a frame. The lower end of the vacuum tank 5 is open, and the upper end of the vacuum tank 5 has an air extraction hole connected to the air extraction port of the vacuum pump 4. The vacuum pump 4 is directly fixed to the upper end face of the vacuum tank 5.

[0016] A permanent magnet 15 is embedded at the edge of the lower opening of the vacuum tank 5, and the permanent magnet 15 is used to adsorb the edge of the basin 13.

[0017] A plug 3 is inserted into the feed inlet of the vacuum tank 5. One end of the plug 3 is connected to a sliding shaft 6, and the other end of the sliding shaft 6 passes through a groove on the surface of the vacuum tank 5 and is connected to a ferromagnetic metal plate 9 located outside the vacuum tank 5. At the same time, an electromagnet 7 is fixedly connected to the outer surface of the vacuum tank 5, with the adsorption end of the electromagnet 7 facing the ferromagnetic metal plate 9. A spring 8 for resetting is provided on the ferromagnetic metal plate 9 and the outer surface of the vacuum tank 5. When the electromagnet 7 is energized, it adsorbs and connects to the ferromagnetic metal plate 9, and the plug 3 is sealed to the feed inlet through the sliding shaft 6. When the electromagnet 7 is de-energized, it separates from the ferromagnetic metal plate 9 under the action of the resetting force of the spring 8. At this time, the plug 3 separates from the feed inlet, and a space for material to flow out is created between the two.

[0018] Specifically, the electromagnet is connected to a power source via a switch; the switch controls the on / off state to achieve attraction and release.

[0019] Specifically, the sliding shaft 6 and the through groove on the surface of the vacuum tank 5 are connected by a linear bearing, and sealing rings are provided at both ends of the linear bearing. The sealing rings are sealed to the inner wall of the through groove to ensure the mechanical seal. The mechanical seal can be installed and debugged using common knowledge known to those skilled in the art.

[0020] The lower opening of the vacuum tank 5 contacts the connecting basin 13. The edge of the opening of the basin 13 contacts the edge of the lower opening of the vacuum tank 5 and forms a relatively sealed container. The vacuum pump draws air to create negative pressure inside the container, which strengthens the connection between the basin 13 and the vacuum tank 5.

[0021] The basin 13 is made of ferromagnetic metal and has a Teflon coating on its surface.

[0022] In actual use, the feed inlet is blocked by an electromagnet controlled manually, and then the vacuum pump is controlled manually to create negative pressure inside the container. When the pressure reaches the critical value, the electromagnet is de-energized, and the feed inlet is opened under the action of the spring and the negative pressure. Under the action of the negative pressure inside the container, the suction tube generates suction force, which sucks the sludge accumulated at the lowest point upward. Depending on the capacity of the connecting basin 13, the negative pressure suction can be repeated many times to achieve the maximum continuous sludge suction.

[0023] Multiple basins 13 can be set, and the surface of each basin 13 is rotatably connected to one end of the corresponding bracket 12 by a pin. The other end of the bracket 12 is connected to the surface of the turntable 10. The rotation center of the turntable 10 is connected to the output end of the indexing turntable 14, which can realize the continuous mud removal during long-term basin changing.

[0024] One end of the telescopic rod 11 is rotatably connected to the surface of the basin 13, and the other end of the telescopic rod 11 is rotatably connected to the bottom of the turntable 10. The telescopic rod 11 is an electric telescopic rod or a hydraulic telescopic rod. When the telescopic rod 11 extends, it pushes the basin 13 to rotate around the pin to stand upright, so that the mud is poured out.

[0025] The rotation of turntable 10 enables the sludge receiving and discharging cycle, allowing the sludge discharge process in the sewage sedimentation tank to continue continuously.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sludge discharging device for sewage treatment, comprising a sedimentation tank (1), a suction pipe (2), a plug (3), a vacuum pump (4), a vacuum tank (5), a sliding shaft (6), an electromagnet (7), a spring (8), a ferromagnetic metal plate (9), and a basin (13), characterized in that; The bottom of the sedimentation tank (1) is funnel-shaped, one end of the suction tube (2) is located at the lowest point of the bottom of the sedimentation tank (1); the outer surface of the vacuum tank (5) is provided with a feed inlet, and the other end of the suction tube (2) is sealingly connected to the edge of the feed inlet; the lower end of the vacuum tank (5) is open, the upper end of the vacuum tank (5) is provided with an air extraction hole, and the air extraction hole is connected to the air extraction port of the vacuum pump (4); the feed inlet of the vacuum tank (5) is plugged with a plug (3), one end of the plug (3) is connected to the slide shaft (6), the other end of the slide shaft (6) passes through the through slot formed on the surface of the vacuum tank (5) and is connected to the ferromagnetic metal plate (9) outside the vacuum tank (5), and the outer surface of the vacuum tank (5) is fixedly connected to the electromagnet (7), and the adsorption end of the electromagnet (7) faces the ferromagnetic metal plate (9); the ferromagnetic metal plate (9) and the outer surface of the vacuum tank (5) are provided with springs (8) for resetting; the lower end opening of the vacuum tank (5) is in contact with the basin (13).

2. The sludge discharging apparatus for sewage treatment according to claim 1, characterized by When the electromagnet (7) is energized, the ferromagnetic metal plate (9) is adsorbed and connected, and the plug (3) is sealingly connected at the feed inlet through the slide shaft (6); when the electromagnet (7) is de-energized and separated from the ferromagnetic metal plate (9) under the action of the resetting force of the spring (8), the plug (3) is separated from the feed inlet and a space is formed between them for the material to flow out.

3. The sludge discharging apparatus for sewage treatment according to claim 1 or 2, characterized by The edge of the lower end opening of the vacuum tank (5) is inlaid with a permanent magnet (15), which is used to adsorb the edge of the basin (13).

4. The sludge discharging apparatus for sewage treatment according to claim 3, characterized by The material of the basin (13) is ferromagnetic metal and the surface is sprayed with a Teflon coating.

5. The sludge discharging apparatus for sewage treatment according to claim 4, characterized by A plurality of basins (13) are provided, and the surface of each basin (13) is rotatably connected to one end of the corresponding support (12) through a pin shaft, the other end of the support (12) is connected to the surface of the turntable (10), and the rotation center of the turntable (10) is connected to the output end of the protractor disc turntable (14); the surface of the basin (13) is rotatably connected to one end of the telescopic rod (11), and the other end of the telescopic rod (11) is rotatably connected below the turntable (10), when the telescopic rod (11) is elongated, the basin (13) is pushed to rotate around the pin shaft to stand up.

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