Slurry shield tunnel sewage recycling device

Abstract

The utility model discloses a slurry shield tunnel sewage recycling device which comprises a sewage filtering barrel, an outer filtering ring, a middle filtering ring and an inner filtering ring are arranged in the sewage filtering barrel, and filtering holes are formed in the middle of the outer filtering ring, the middle of the middle filtering ring and the middle of the inner filtering ring. A support is further fixed to the sewage filtering barrel, a rotary drum is inserted in the center of the support, a motor and a water pump are further fixed to the support, belt pulleys are fixedly arranged on an output shaft of the motor and the rotary drum in a sleeving mode, and a belt is tightly arranged between the two belt pulleys in a sleeving mode; a water suction pipe is further inserted into the opening in the top of the rotary drum, the other end of the water suction pipe is connected to the water inlet end of the water pump, a swing rod is further fixed to the rotary drum, and a plurality of scrapers are fixed to the bottom of the swing rod. The slurry shield tunnel sewage recycling device is simple in structure, easy and convenient to operate and comprehensive in function, and the requirement for simultaneous recycling of water and disintegrating slag can be met.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment in tunnel construction, specifically a sewage recycling device for slurry shield tunnels. Background Technology

[0002] A slurry shield tunnel is a type of tunnel constructed using slurry pressure shield technology. Slurry pressure shield tunneling (also known as slurry shield tunneling or mud shield tunneling) is a special shield tunneling technology that creates a closed working environment by injecting slurry into the excavated soil during its advance. During the construction of slurry shield tunnels, a large amount of wastewater is generated. This wastewater contains gravel particles, sand, etc. Direct discharge would waste a lot of water resources. Therefore, this wastewater needs to be filtered and treated to meet the standards for recycling. Traditional wastewater recycling devices for slurry shield tunnels have complex structures and single functions. The filtered debris cannot be classified according to size, which is not conducive to the secondary use of debris and cannot meet the requirement of simultaneous recycling of water and debris.

[0003] To address the aforementioned issues, we propose a wastewater recycling device for slurry shield tunnels, which improves upon the shortcomings of existing technologies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a wastewater recycling device for slurry shield tunnels. In order to solve the above-mentioned technical problem, this utility model provides the following technical solution:

[0005] This utility model discloses a wastewater recycling device for slurry shield tunnels, comprising a wastewater filter tank. The wastewater filter tank contains an outer filter ring, a middle filter ring, and an inner filter ring. Each of the outer, middle, and inner filter rings has filter holes in its middle section, and the diameter of the filter holes gradually decreases from one to the other. A support is fixed to the wastewater filter tank, and a rotating cylinder is inserted at the center of the support. A motor and a water pump are also fixed to the support. A pulley is fitted and fixed to the output shaft of the motor and the rotating cylinder, and a belt is tightly fitted between the two pulleys. A suction pipe is inserted into the opening at the top of the rotating cylinder, and the other end of the suction pipe is connected to the inlet of the water pump. A swing rod is also fixed to the rotating cylinder, and multiple scrapers are fixed to the bottom of the swing rod.

[0006] Preferably, a bearing is provided at the connection between the rotating drum and the support, and the bottom end of the rotating drum extends to the center of the sewage filter bucket.

[0007] Preferably, the outlet end of the water pump is connected to a drain pipe.

[0008] Preferably, the scraper is attached to the outer side of the outer filter ring, the middle filter ring, and the inner filter ring, respectively.

[0009] Preferably, a sewage inlet pipe is inserted into and fixed on the sewage filter bucket.

[0010] Preferably, the bottom of the wastewater filter tank has multiple sets of slag discharge ports, and the bottom of each slag discharge port is provided with an openable cover.

[0011] Preferably, the bracket is also equipped with a controller, and the controller is electrically connected to the motor and the water pump.

[0012] Preferably, the water suction pipe is fixed to the bracket by a support rod, and a sealing ring is fitted and fixed on the connection end between the water suction pipe and the rotating drum.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] This wastewater recycling device for slurry shield tunnels features an external, middle, and internal filter ring within a wastewater filtration tank. A rotating drum, motor, and water pump assembly are mounted on a support frame. A swing arm and scraper assembly are also installed on the rotating drum. The external, middle, and internal filter rings filter particles of different sizes from the wastewater, allowing for their classification and reuse. The scraper moves along the outside of the filter rings to prevent clogging of the filter holes. The water pump and rotating drum assembly remove the filtered water. This design makes the device simple to operate, easy to use, and fully functional, enabling the simultaneous recycling of water and wastewater. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a front view structural schematic diagram of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the external filter barrel in this utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the sewage filter bucket in this utility model.

[0020] In the diagram: 1. Wastewater filter tank; 2. External filter ring; 3. Middle filter ring; 4. Internal filter ring; 5. Filter holes; 6. Support; 7. Rotating drum; 8. Motor; 9. Water pump; 10. Suction pipe; 11. Drain pipe; 12. Swing rod; 13. Scraper; 14. Wastewater inlet pipe; 15. Cover plate; 16. Controller; 17. Support rod; 18. Sludge discharge port. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example

[0023] like Figure 1-4 As shown, a wastewater recycling device for slurry shield tunnels includes a wastewater filter tank 1. The wastewater filter tank 1 is equipped with an outer filter ring 2, a middle filter ring 3, and an inner filter ring 4. Filter holes 5 are formed in the middle of each of the outer filter ring 2, the middle filter ring 3, and the inner filter ring 4, with the diameter of the filter holes 5 gradually decreasing from one to the other. A support 6 is also fixed to the wastewater filter tank 1, with a rotating cylinder 7 inserted at the center of the support 6. A motor 8 and a water supply unit are also fixed to the support 6. A pulley is fitted and fixed on the output shaft of the pump 9 and motor 8 and the rotating drum 7, and a belt is tightly fitted between the two pulleys. A suction pipe 10 is inserted into the opening at the top of the rotating drum 7, and the other end of the suction pipe 10 is connected to the water inlet of the pump 9. A swing rod 12 is also fixed on the rotating drum 7, and multiple scrapers 13 are fixed at the bottom of the swing rod 12. The whole structure is a slurry shield tunnel sewage recycling device. Its structure is simple, easy to operate, and has comprehensive functions, which can meet the needs of simultaneous recycling of water and slag.

[0024] In this embodiment, a bearing is provided at the connection between the rotating drum 7 and the support 6, which can limit the rotation of the rotating drum 7, and the bottom end of the rotating drum 7 extends to the center of the sewage filter bucket 1, making it convenient to extract the filtered water.

[0025] In this embodiment, the outlet end of the water pump 9 is connected to a drain pipe 11 for discharging filtered water for reuse.

[0026] In this embodiment, the scraper 13 is attached to the outer side of the outer filter ring 2, the middle filter ring 3 and the inner filter ring 4 respectively, to scrape off the debris clogging the filter rings, avoid clogging the filter holes 5 and help with continuous filtration.

[0027] In this embodiment, a sewage inlet pipe 14 is inserted and fixed on the sewage filter bucket 1 to facilitate the introduction of sewage from the slurry shield tunnel into the sewage filter bucket 1 for filtration.

[0028] In this embodiment, the bottom of the sewage filter tank 1 has multiple sets of slag discharge ports 18, and the bottom of the slag discharge ports 18 is provided with an openable cover plate 15 for discharging slag of different particle sizes, so that the slag can be classified and utilized according to its size.

[0029] In this embodiment, a controller 16 is also provided on the bracket 6, and the controller 16 is electrically connected to the motor 8 and the water pump 9 for controlling the operation of the device.

[0030] In this embodiment, the suction pipe 10 is fixed to the bracket 6 by the support rod 17 to prevent the suction pipe 10 from shaking when the rotating drum 7 rotates. A sealing ring is sleeved and fixed on the connection end between the suction pipe 10 and the rotating drum 7 to increase the sealing performance and help with high-pressure water suction.

[0031] The principle and advantages of this utility model: The controller 16 is connected to a power source, and the motor 8 and water pump 9 are turned on. Wastewater is discharged into the wastewater filter tank 1 through the wastewater inlet pipe 14. Larger particles are first filtered out by the filter holes 5 on the outer filter ring 2, then smaller particles are filtered out by the filter holes 5 on the middle filter ring 3, and finally, even smaller particles are filtered out by the filter holes 5 on the inner filter ring 4. After multiple filtrations, the wastewater enters the center of the wastewater filter tank 1. The motor 8 rotates the swing arm 12 on the rotating drum 7, and the scraper 13 on the swing arm 12 scrapes against the outer side of the filter ring, removing the blockages... The debris on the filter holes 5 is scraped off to prevent clogging and to facilitate continuous filtration. At the same time, the scraper 13 can also agitate the sewage and increase the filtration speed. The water pump 9 extracts the filtered sewage for reuse. After the sewage filtration is completed, the cover plate 15 is opened at the bottom of the sewage filter tank 1, and the filtered debris is manually scraped to the slag discharge port 18 to discharge the filtered debris. These debris of different sizes can be reused according to the needs of use. The slurry shield tunnel sewage recycling device with this structural design is simple in structure, easy to operate, and has comprehensive functions, which can meet the needs of simultaneous recycling of water and debris.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A wastewater recycling device for slurry shield tunnels, comprising a wastewater filter tank (1), characterized in that: The wastewater filter tank (1) is equipped with an outer filter ring (2), a middle filter ring (3), and an inner filter ring (4). Filter holes (5) are opened in the middle of the outer filter ring (2), the middle filter ring (3), and the inner filter ring (4). The diameter of the filter holes (5) on the outer filter ring (2), the middle filter ring (3), and the inner filter ring (4) gradually decreases. A bracket (6) is also fixed on the wastewater filter tank (1). A rotating cylinder (7) is inserted at the center of the bracket (6). The bracket (6) is also fixed with a motor (8) and a water pump (9). The output shaft of the motor (8) and the drum (7) are fitted with and fixed with pulleys, and a belt is tightly fitted between the two pulleys. A suction pipe (10) is inserted into the opening at the top of the drum (7), and the other end of the suction pipe (10) is connected to the water inlet of the water pump (9). A swing rod (12) is also fixed on the drum (7), and multiple scrapers (13) are fixed at the bottom of the swing rod (12).

2. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: A bearing is provided at the connection between the rotating drum (7) and the support (6), and the bottom end of the rotating drum (7) extends to the center of the sewage filter bucket (1).

3. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: The outlet end of the water pump (9) is connected to a drain pipe (11).

4. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: The scraper (13) is attached to the outside of the outer filter ring (2), the middle filter ring (3) and the inner filter ring (4).

5. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: A sewage inlet pipe (14) is inserted and fixed on the sewage filter bucket (1).

6. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: The bottom of the wastewater filter tank (1) has multiple sets of slag discharge ports (18), and the bottom of the slag discharge ports (18) is provided with an openable cover plate (15).

7. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: The bracket (6) is also equipped with a controller (16), and the controller (16) is electrically connected to the motor (8) and the water pump (9).

8. The slurry shield tunnel wastewater recycling device as described in claim 1, characterized in that: The water suction pipe (10) is fixed to the bracket (6) by the support rod (17), and a sealing ring is fitted and fixed on the connection end of the water suction pipe (10) and the rotating drum (7).

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