Tunnel construction wastewater purification equipment

Abstract

The utility model relates to the technical field of wastewater purification, in particular to tunnel construction wastewater purification equipment. The device comprises a purification box, a knocking assembly and a cleaning assembly, the top of the purification box communicates with a water inlet pipe, the side face of the purification box communicates with a blow-off pipe, a filter element assembly used for purifying wastewater is arranged in the purification box, and the knocking assembly is arranged on the inner side of the purification box and located above the filter element assembly and used for being matched with the water inlet pipe to knock and remove dirt on the filter element assembly. And a cleaning assembly is arranged in the purification box. The filter element assembly is arranged in the purification box to purify waste water, meanwhile, the knocking assembly and the cleaning assembly are arranged, the filter element assembly is knocked in the waste water leading-in process, so that impurities on the surface of the filter element assembly are knocked down, and when the water level of the cleaning assembly in the purification box is high, the floating plate is driven by the cleaning assembly to ascend, so that the impurities in the waste water are removed. Therefore, the flexible bristles on the floating plate are used for cleaning the outer side of the filter element assembly, the filtering effect of the filter element assembly is improved, and the service life of the filter element assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater purification, in particular to a wastewater purification device for tunnel construction. Background Technique

[0002] A large amount of tunnel water inrush and some construction wastewater are generated during tunnel construction. The main pollutants are stone powder, petroleum and ammonia nitrogen. After being treated by a purification device, a small amount of stone powder, trace petroleum and ammonia nitrogen still remain. After a large amount of wastewater generated during tunnel construction is treated by an integrated water purifier device, most of the suspended solids in the wastewater are effectively removed, but it still cannot meet the purposes of direct discharge up to standard and reuse. Therefore, a wastewater purification device is usually required to purify and treat it.

[0003] The existing wastewater purification device usually uses a filter element to purify wastewater. However, due to the large amount of stone powder impurities contained in the wastewater during tunnel construction, the filter element needs to be replaced frequently, increasing the overall use cost. Summary of the Utility Model

[0004] In view of the problems existing in the background technique, a wastewater purification device for tunnel construction is proposed. A filter element assembly is arranged in the purification tank to purify wastewater. At the same time, a knocking assembly and a cleaning assembly are arranged. During the process of introducing wastewater, the filter element assembly is knocked to knock down the impurities on its surface. When the water level in the purification tank is relatively high, it drives the floating plate to rise, so as to use the flexible bristles on the floating plate to clean the outside of the filter element assembly, improving its filtering effect and extending its service life.

[0005] The utility model provides a wastewater purification device for tunnel construction, including

[0006] A purification tank, the top of which is communicated with a water inlet pipe, the side of which is communicated with a sewage discharge pipe, and a filter element assembly for purifying wastewater is arranged inside it;

[0007] A knocking assembly, which is arranged inside the purification tank above the filter element assembly and is used to cooperate with the water inlet pipe to knock and remove dirt from the filter element assembly; and

[0008] A cleaning assembly, which is arranged in the purification tank and is used to cooperate with the knocking assembly to clean the filter element assembly.

[0009] Preferably, the filter element assembly includes a top plate, a bottom plate, a filter screen and a water outlet pipe. A connecting shaft is arranged at the bottom of the inner wall of the purification tank. The top plate is installed at the bottom of the connecting shaft. A bottom plate is arranged below the top plate. A filter screen is arranged between the bottom plate and the top plate. The bottom of the bottom plate is connected with a water outlet pipe passing through the bottom of the purification tank.

[0010] Preferably, the knocking component includes a rotating shaft, a self-rotating blade, a connecting ring and an elastic telescopic mechanism. Both ends of the rotating shaft are rotatably connected to both sides of the inner wall of the purification tank through bearings. A plurality of groups of self-rotating blades facing the water inlet pipe are circumferentially arranged on the outer side of one end of the rotating shaft. A connecting ring is arranged in the middle of the rotating shaft. An elastic telescopic mechanism for knocking the top plate is arranged on the connecting ring.

[0011] Preferably, the elastic telescopic mechanism includes a spring, a sliding plate and a knocking plate. A groove is formed on the outer side of the connecting ring. A sliding plate is slidably arranged in the groove. A spring is connected between one side of the sliding plate and the groove wall of the groove. The other side of the sliding plate is connected with a knocking plate extending to the outside of the connecting ring.

[0012] Preferably, the cleaning component includes a floating plate and a limiting member. The floating plate is movably arranged in the purification tank through the limiting member. A through hole is formed in the middle of the floating plate. Flexible bristles facing the filter screen are arranged on the inner wall of the through hole.

[0013] Preferably, the limiting member includes a limiting post and a ring sleeve. Limiting posts are vertically arranged at the four corners on the inner side of the purification tank. Ring sleeves are arranged at the four corners of the floating plate. The ring sleeves are correspondingly sleeved on the limiting posts.

[0014] Through the above technical solutions, that is, the wastewater purification equipment disclosed by the present utility model is provided with a filter element assembly in the purification tank to purify the wastewater. At the same time, a knocking component and a cleaning component are provided. During the process of introducing wastewater, through the cooperation of the rotating shaft, the self-rotating blade, the connecting ring and the elastic telescopic mechanism, the filter element assembly can be knocked, so as to knock down the impurities on its surface. When the water level in the purification tank is relatively high, the cleaning component will drive the floating plate to rise, so as to use the flexible bristles on the floating plate to clean the outside of the filter element assembly, improving its filtering effect and extending its service life.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a wastewater purification equipment for tunnel construction according to the present utility model;

[0017] Figure 2 is Figure 1 the side sectional structural diagram of;

[0018] Figure 3 is Figure 2 the side view structural diagram of;

[0019] Figure 4 is Figure 3 the partial enlarged structural diagram at A of.

[0020] Reference numerals: 1, purification tank; 2, water inlet pipe; 3, sewage discharge pipe; 4, top plate; 5, bottom plate; 6, filter screen; 7, water outlet pipe; 8, connecting shaft; 9, rotating shaft; 10, self-rotating blades; 11, connecting ring; 12, spring; 13, sliding plate; 14, knocking plate; 15, groove; 16, floating plate; 17, through hole; 18, flexible brush bristles; 19, limiting post; 20, ring sleeve. Detailed implementation manners

[0021] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for the purpose of illustration and explanation of the present disclosure, and are not intended to limit the present disclosure.

[0022] Embodiment 1

[0023] As Figures 1-4 shown, a tunnel construction wastewater purification device proposed by the present utility model includes a purification tank 1, a knocking assembly and a cleaning assembly. The top of the purification tank 1 is connected to a water inlet pipe 2, and its side is connected to a sewage discharge pipe 3. A filter element assembly for purifying wastewater is arranged inside it. The knocking assembly is arranged above the filter element assembly on the inner side of the purification tank 1, and is used to cooperate with the water inlet pipe 2 to knock and remove dirt from the filter element assembly. A cleaning assembly is arranged in the purification tank 1, and is used to cooperate with the knocking assembly to clean the filter element assembly.

[0024] As Figure 2 shown, the filter element assembly includes a top plate 4, a bottom plate 5, a filter screen 6 and a water outlet pipe 7. A connecting shaft 8 is arranged at the bottom of the inner wall of the purification tank 1, the top plate 4 is installed at the bottom of the connecting shaft 8, a bottom plate 5 is arranged below the top plate 4, a filter screen 6 is arranged between the bottom plate 5 and the top plate 4, and the bottom of the bottom plate 5 is connected to a water outlet pipe 7 passing through the bottom of the purification tank 1.

[0025] Valves are arranged on both the sewage discharge pipe 3 and the water outlet pipe 7.

[0026] The wastewater generated by tunnel construction is introduced into the purification tank through the water inlet pipe 2. As the water level in the purification tank rises, the wastewater filtered by the filter screen 6 enters the inner side of the filter element assembly and is finally discharged through the water outlet pipe 7.

[0027] As Figure 3 and Figure 4 shown, the knocking assembly includes a rotating shaft 9, self-rotating blades 10, a connecting ring 11 and an elastic telescopic mechanism. Both ends of the rotating shaft 9 are rotatably connected to both sides of the inner wall of the purification tank 1 through bearings. A plurality of groups of self-rotating blades 10 facing the water inlet pipe 2 are circumferentially arranged on the outer side of one end of the rotating shaft 9. A connecting ring 11 is arranged in the middle of the rotating shaft 9, and an elastic telescopic mechanism for knocking the top plate 4 is arranged on the connecting ring 11.

[0028] As Figure 4As shown in the figure, the elastic telescopic mechanism includes a spring 12, a sliding plate 13, and a knocking plate 14. A groove 15 is formed on the outer side of the connecting ring 11. The sliding plate 13 is slidably arranged in the groove 15. A spring 12 is connected between one side of the sliding plate 13 and the groove wall of the groove 15. The other side of the sliding plate 13 is connected with a knocking plate 14 extending to the outside of the connecting ring 11.

[0029] During the process of introducing wastewater into the inlet, the self-gravity of the wastewater drives the rotation of the rotating blades 10. During the rotation process, the connecting ring 11 is driven to rotate synchronously through the rotating shaft 9. When the connecting ring 11 rotates, the knocking plate 14 that elastically protrudes drives the top plate 4 to be knocked, so as to knock off the impurities outside the filter screen 6, avoiding them covering the filter screen 6. As the connecting ring 11 continues to rotate, when the knocking plate 14 is facing the top plate 4, it will receive a reverse force generated by the top plate 4, thereby driving the sliding plate 13 to squeeze the spring 12 so that the knocking plate 14 retracts into the groove 15 until it is misaligned with the top plate 4 during the rotation process, and then pops out again to knock the top plate 4.

[0030] Embodiment 2

[0031] As Figures 1-4 shown, a tunnel construction wastewater purification device proposed by the present utility model, on the basis of the above embodiment, this embodiment also details the specific components of the cleaning assembly and its cleaning method for the filter element assembly.

[0032] As Figure 2 shown, the cleaning assembly includes a floating plate 16 and a limiting member. The floating plate 16 is movably arranged in the purification tank 1 through the limiting member. A through hole 17 is formed in the middle of it, and flexible bristles 18 facing the filter screen 6 are arranged on the inner wall of the through hole 17.

[0033] As Figure 3 shown, the limiting member includes a limiting post 19 and a ring sleeve 20. Limiting posts 19 are vertically arranged at the four corners on the inner side of the purification tank 1. Ring sleeves 20 are arranged at the four corners of the floating plate 16, and the ring sleeves 20 are correspondingly sleeved on the limiting posts 19.

[0034] During the use process, as the water level in the water purification tank rises, the floating plate 16 is driven to vertically rise and move under the limitation of the limiting post 19. During the moving process, the flexible bristles 18 on the floating plate 16 clean the filter screen 6 from the outside.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the gist of the present utility model within the knowledge scope of those skilled in the technical field to which it belongs.

Claims

1. A tunnel construction wastewater purification device, characterized in that: include A purification box (1), the top of which is connected to a water inlet pipe (2), the side of which is connected to a sewage discharge pipe (3), and a filter element assembly for purifying wastewater is arranged inside the purification box; A knocking assembly is arranged inside the purification box (1) and above the filter element assembly, and is used to cooperate with the water inlet pipe (2) to knock the filter element assembly to remove dirt; and A cleaning component is arranged in the purification box (1) and is used to cooperate with the knocking component to clean the filter element component.

2. A tunnel construction wastewater purification equipment according to claim 1, characterized in that: The filter element assembly comprises a top plate (4), a bottom plate (5), a filter screen (6) and a water outlet pipe (7); a connecting shaft (8) is arranged at the bottom of the inner wall of the purification box (1); the top plate (4) is mounted on the bottom of the connecting shaft (8); a bottom plate (5) is arranged below the top plate (4); a filter screen (6) is arranged between the bottom plate (5) and the top plate (4); and a water outlet pipe (7) passing through the bottom of the purification box (1) is connected to the bottom of the bottom plate (5).

3. A tunnel construction wastewater purification equipment according to claim 1, characterized in that: The knocking assembly comprises a rotating shaft (9), self-rotating blades (10), a connecting ring (11) and an elastic telescopic mechanism. The two ends of the rotating shaft (9) are rotatably connected to the two sides of the inner wall of the purification box (1) through bearings. The outer circumference of one end of the rotating shaft is provided with a plurality of groups of self-rotating blades (10) facing the water inlet pipe (2). The middle part of the rotating shaft is provided with a connecting ring (11). The connecting ring (11) is provided with an elastic telescopic mechanism for knocking the top plate (4).

4. A tunnel construction wastewater purification equipment according to claim 3, characterized in that: The elastic telescopic mechanism comprises a spring (12), a slide plate (13) and a knocking plate (14); a groove (15) is provided on the outer side of the connecting ring (11); a slide plate (13) is slidably arranged in the groove (15); a spring (12) is connected between one side of the slide plate (13) and a groove wall of the groove (15); and a knocking plate (14) extending to the outer side of the connecting ring (11) is connected to the other side of the slide plate (13).

5. A tunnel construction wastewater purification equipment according to claim 1, characterized in that: The cleaning assembly comprises a floating plate (16) and a limiting member. The floating plate (16) is movably arranged in the purification box (1) through the limiting member. A through hole (17) is provided in the middle thereof. The inner wall of the through hole (17) is provided with flexible bristles (18) facing the filter screen (6).

6. A tunnel construction wastewater purification equipment according to claim 5, characterized in that: The limiting member comprises a limiting column (19) and a ring sleeve (20); the limiting columns (19) are vertically arranged at the four corners inside the purification box (1); the ring sleeves (20) are arranged at the four corners of the floating plate (16); and the ring sleeves (20) are correspondingly sleeved on the limiting columns (19).

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