Integrated small sewage treatment device for construction cavern

Abstract

The utility model provides an integrated small-sized sewage treatment device for construction cavern, which comprises a bottom plate, brake universal wheels are arranged at four corners of the bottom end of the bottom plate, a main filter box and an auxiliary filter box are transversely arranged on the bottom plate in parallel, a first water inlet pipe is arranged at the top of the main filter box, the main filter box is provided with a self-cleaning component, and a second water inlet pipe is arranged at the bottom of the auxiliary filter box. The self-cleaning assembly is in linkage with a grating filter screen in the main filter box, the main filter box and the auxiliary filter box are connected through a second water inlet pipe, a drainage pipe with a valve is arranged at the bottom of the side wall of the end, away from the main filter box, of the auxiliary filter box, and a handle is arranged on the side wall of the end, away from the auxiliary filter box, of the main filter box. The sewage treatment device has the advantages of simple structure, small size, high filtering efficiency, easiness in operation and maintenance and the like, and is particularly suitable for temporary sewage treatment or limited-space sewage treatment requirements of construction caverns and the like.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment technology for tunnel construction, specifically an integrated small sewage treatment device for tunnel construction. Background Technology

[0002] In water conservancy and hydropower projects, the treatment and discharge of wastewater from construction caverns is of paramount importance. It is not only a core aspect of environmental impact assessment but also a key measure for protecting the water environment. However, the current situation is far from satisfactory. Traditional wastewater treatment systems rely on a large number of large-scale equipment, occupying a vast area. In the confined space of construction caverns, they are simply impossible to arrange rationally, and installation and operation are even more challenging.

[0003] Currently, wastewater from tunnel construction is typically treated by discharging it outside the tunnel. However, tunnels are usually quite long, and the volume of wastewater generated during construction is enormous, significantly increasing drainage costs and reducing economic efficiency. Furthermore, the extensive drainage work occupies limited drainage space within the tunnel and consumes already strained power resources, causing numerous inconveniences to construction. In addition, existing wastewater treatment facilities are generally bulky and difficult to move, making them challenging to deploy flexibly within the limited space of construction tunnels. Moreover, their treatment efficiency is low, failing to quickly and effectively purify wastewater and thus failing to meet the actual needs of wastewater treatment in construction tunnels.

[0004] Therefore, there is an urgent need for an integrated small-scale sewage treatment device for construction caverns to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing sewage treatment devices, which are mostly bulky, inconvenient to move, and have low treatment efficiency, especially in construction caverns with limited space, where traditional sewage treatment equipment often fails to meet actual needs. This invention provides an integrated small sewage treatment device for construction caverns to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an integrated small-scale sewage treatment device for construction caverns, comprising a base plate, with brake casters installed at the four corners of the bottom of the base plate, a main filter box and a secondary filter box arranged horizontally side by side on the base plate, a first inlet pipe at the top of the main filter box, a self-cleaning component in the main filter box, the self-cleaning component being linked with the grid filter inside the main filter box, the main filter box and the secondary filter box being connected by a second inlet pipe, a drain pipe with a valve at the bottom of the side wall away from the main filter box, and a handle at the side wall away from the secondary filter box.

[0007] Preferably, a grid filter is provided laterally in the middle of the inner cavity of the main filter box, and one side of the grid filter is hinged to the inner wall of the main filter box.

[0008] Preferably, the self-cleaning component includes a U-shaped frame, a pushing mechanism, a discharge frame, and a tilting port. The tilting port is opened on the side wall of the main filter box and hinged to the grid filter. The U-shaped frame is slidably disposed inside the main filter box. The discharge frame is disposed on the outer surface of the side wall of the main filter box and communicates with the tilting port. The pushing mechanism is disposed at the end away from the tilting port.

[0009] Preferably, the pushing mechanism includes an L-shaped fixing plate fixed to the outer wall of the main filter box, a linear drive motor fixed to the inner side of the side wall of the L-shaped fixing plate, the driving end of the linear drive motor being connected to the push rod, and the top end of the push rod being connected to the bottom end of the push handle.

[0010] Preferably, two connecting rods are fixed to the side end of the U-shaped frame. The connecting rods penetrate the side wall of the main filter box. A connecting plate is fixedly installed on the outer end of the main filter box. A connecting groove is opened in the middle of the connecting plate, and a push handle is sleeved in the middle of the connecting groove.

[0011] Preferably, the return frame has L-shaped push plates at both ends on one side of the inlet, the L-shaped push plates are located in the discharge frame, the discharge frame has a rotating cover plate on the outside, and the inner side wall of the rotating cover plate is surrounded by a sealing strip.

[0012] Preferably, trapezoidal plates are provided on the inner walls of both sides of the main filter box, and a U-shaped frame is slidably provided at the top of the trapezoidal plate, with a grid filter screen at the top of the U-shaped frame.

[0013] Preferably, the lower ends of both sides of the grid filter are provided with first pulleys, and the first pulleys are in contact with one side of the trapezoidal slope of the trapezoidal plate through the first limiting grooves opened on both sides of the U-shaped frame.

[0014] Preferably, an activated carbon filter screen is provided laterally in the middle of the inner cavity of the secondary filter box, and the drain pipe is provided on the lower side wall of the activated carbon filter screen.

[0015] Preferably, the inlet end of the second water inlet pipe is located at the bottom end of the side wall of the main filter box near the secondary filter box, the outlet end of the second water inlet pipe is located at the center of the top plate of the secondary filter box, and a water pump is provided at the inlet end of the second water inlet pipe.

[0016] The present invention has the following beneficial effects:

[0017] 1. This utility model integrates the sewage treatment equipment into a compact and small-sized structure, making it easy to move and install, and is particularly suitable for environments with limited space, such as construction caverns;

[0018] 2. This utility model effectively removes impurities and harmful substances from sewage through dual filtration of a bar screen and an activated carbon screen, improving treatment efficiency. The cleaning component can automatically clean the bar screen, preventing blockage by impurities, extending service life, and reducing maintenance costs.

[0019] 3. This utility model has the advantages of simple structure, high filtration efficiency, easy operation and maintenance, and is particularly suitable for temporary or space-limited sewage treatment needs such as construction caverns. Attached Figure Description

[0020] Figure 1 This is a front perspective view of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a partial cross-sectional view of the present invention;

[0023] Figure 4 This is a partial perspective view of the present invention.

[0024] In the diagram: 1. Base plate; 2. Main filter box; 3. Secondary filter box; 4. First inlet pipe; 5. Second inlet pipe; 6. Water pump; 7. Drain pipe; 8. Discharge frame; 9. Cover plate; 10. Activated carbon filter screen; 11. Trapezoidal plate; 12. U-shaped frame; 13. Grille filter screen; 14. First pulley; 15. L-shaped push plate; 16. Connecting rod; 17. Linear drive motor; 18. L-shaped fixing plate; 19. Push rod; 20. Connecting plate; 21. Connecting groove; 22. Push handle; 23. First limiting groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] See Figures 1 to 4 An integrated small-scale sewage treatment device for construction caverns includes a base plate 1. Braked casters are installed at the four corners of the base plate 1. A main filter box 2 and a secondary filter box 3 are arranged horizontally side-by-side on the base plate 1. A first inlet pipe 4 is provided at the top of the main filter box 2. The main filter box 2 is equipped with a self-cleaning component, which is linked to a grid filter screen 13 inside the main filter box 2. The main filter box 2 and the secondary filter box 3 are connected by a second inlet pipe 5. A drain pipe 7 with a valve is provided at the bottom of the side wall of the secondary filter box 3 away from the main filter box 2. A handle is provided on the side wall of the main filter box 2 away from the secondary filter box 3. The brake casters at the four corners of the base plate 1 allow for easy movement and positioning of the device. The grid filter screen 13 inside the main filter box 2 is used for preliminary filtration of sewage.

[0027] Preferably, a grid filter 13 is provided laterally in the middle of the inner cavity of the main filter box 2, and one side of the grid filter 13 is hinged to the inner wall of the main filter box 2.

[0028] Preferably, the self-cleaning component includes a U-shaped frame 12, a pushing mechanism, a discharge frame 8, and a tilting port. The tilting port is opened on the side wall of the grid filter 13, which is hinged to the main filter box 2. The U-shaped frame 12 is slidably disposed inside the main filter box 2. The discharge frame 8 is disposed on the outer surface of the side wall of the main filter box 2 and is connected to the tilting port. The pushing mechanism is disposed at the end away from the tilting port.

[0029] Preferably, the pushing mechanism includes an L-shaped fixing plate 18 fixed to the outer wall of the main filter box 2. A linear drive motor 17 is fixed to the inner side of the side wall of the L-shaped fixing plate 18. The driving end of the linear drive motor 17 is connected to the push rod 19, and the top end of the push rod 19 is connected to the bottom end of the push handle 22. The linear drive motor 17 drives the push rod 19 through telescopic reciprocating motion, and the push rod 19 pushes the push handle 22 to reciprocate.

[0030] Preferably, two connecting rods 16 are fixed to the side end of the U-shaped frame 12. The connecting rods 16 penetrate the side wall of the main filter box 2. A connecting plate 20 is fixedly installed on the outer end of the connecting rods 16 of the main filter box 2. A connecting groove 21 is opened in the middle of the connecting plate 20, and a push handle 22 is sleeved in the middle of the connecting groove 21. When the linear drive motor 17 is working, the push rod 19 and the push handle 22 drive the connecting plate 20 and the U-shaped frame 12 to move back and forth, thereby cleaning the grid filter screen 13.

[0031] Preferably, the U-shaped frame 12 has L-shaped push plates 15 at both ends on one side of the discharge port. The L-shaped push plates 15 are located in the discharge frame 8. The discharge frame 8 has a rotating cover plate 9 on its outer side, and a sealing strip is provided around the inner side wall of the rotating cover plate 9. The sealing strip improves the sealing effect. Two L-shaped push plates 15 are fixed to the side end of the U-shaped frame 12. When the U-shaped frame 12 moves to the discharge position, the L-shaped push plates 15 and the side end of the rotating cover plate 9 press against each other, pushing the rotating cover plate 9 to rotate and open, realizing the automatic discharge of debris.

[0032] Preferably, trapezoidal plates 11 are provided on the inner walls of both sides of the main filter box 2, and a spiral frame 12 is slidably provided at the top of the trapezoidal plate 11, with a grid filter screen 13 at the top of the spiral frame 12.

[0033] Preferably, the lower ends of both sides of the grid filter 13 are respectively provided with first pulleys 14. The first pulleys 14 are in contact with one side of the trapezoidal slope of the trapezoidal plate 11 through the first limiting grooves 23 opened on both sides of the U-shaped frame 12. When the U-shaped frame 12 moves, the first pulleys 14 rise under the action of the slope of the trapezoidal plate 11. The change in the height of the first pulleys 14 will cause the height of the grid filter 13 to change. Since the grid filter 13 is hinged to the inner wall of the main filter box 2 at the end near the discharge port, the grid filter 13 will rotate at a certain angle along the hinge point to form an inclined slope, which discharges the debris on the grid filter 13 to the discharge port, improving the cleaning effect.

[0034] Preferably, an activated carbon filter screen 10 is provided laterally in the middle of the inner cavity of the secondary filter box 3, and the drain pipe 7 is provided on the lower side wall of the activated carbon filter screen 10.

[0035] Preferably, the water inlet end of the second water inlet pipe 5 is located at the bottom end of the side wall of the main filter box 2 near the secondary filter box 3, the water outlet end of the second water inlet pipe 5 is located at the center of the top plate of the secondary filter box 3, and a water pump 6 is provided at the water inlet end of the second water inlet pipe 5.

[0036] The working principle of this embodiment is as follows:

[0037] When using this invention, wastewater is first introduced into the main filter box 2 through the first inlet pipe 4. Larger debris is trapped on the grid filter 13. After preliminary filtration, the wastewater is introduced into the secondary filter box 3 through the second inlet pipe 5, aided by the water pump 6. The wastewater undergoes a second filtration through the activated carbon filter 10. After filtration, the valve on the drain pipe 7 is opened, and the filtered wastewater is discharged to a designated location through the drain pipe 7. During operation, the self-cleaning component continuously cleans debris from the grid filter 13, and the pushing mechanism moves the return frame 12 towards the discharge port. When pushed, the first pulley 14 slides upward along the slope of the trapezoidal plate 11, and the grid filter 13 rises around the hinge point under the pushing force of the first pulley 14. The entire grid filter 13 tilts towards the discharge port, and the impurities move towards the discharge port and enter the discharge frame 8. At the same time, the L-shaped push plate 15 tilts under the action of the return frame 12, pushing the rotating cover plate 9 to discharge the impurities in the discharge frame 8. The pushing mechanism retracts, driving the return frame 12 to move back, the rotating cover plate 9 falls down, and the grid filter 13 returns to a flat position. This process is repeated to ensure the filtration effect of the grid filter 13.

[0038] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An integrated small-scale sewage treatment device for construction caverns, comprising a base plate (1), wherein brake casters are installed at the four corners of the bottom end of the base plate (1), characterized in that: The base plate (1) is provided with a main filter box (2) and a secondary filter box (3) arranged horizontally side by side. The main filter box (2) is provided with a first water inlet pipe (4) at the top. The main filter box (2) is provided with a self-cleaning component. The self-cleaning component is linked with the grid filter (13) inside the main filter box (2). The main filter box (2) and the secondary filter box (3) are connected by a second water inlet pipe (5). The side wall of the secondary filter box (3) away from the main filter box (2) is provided with a drain pipe (7) with a valve at the bottom. The side wall of the main filter box (2) away from the secondary filter box (3) is provided with a handle.

2. The integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The main filter box (2) has a grid filter (13) arranged horizontally in the middle of its inner cavity. One side of the grid filter (13) is hinged to the inner wall of the main filter box (2).

3. The integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The self-cleaning component includes a U-shaped frame (12), a pushing mechanism, a discharge frame (8), and a pouring port. The pouring port is opened on the side wall of the grid filter (13) hinged to the main filter box (2). The U-shaped frame (12) is slidably disposed inside the main filter box (2). The discharge frame (8) is disposed on the outer surface of the side wall of the main filter box (2) and is connected to the pouring port. The pushing mechanism is disposed at the end away from the pouring port.

4. The integrated small-scale sewage treatment device for construction caverns according to claim 3, characterized in that: The pushing mechanism includes an L-shaped fixing plate (18) fixed on the outer wall of the main filter box (2). A linear drive motor (17) is fixed on the inner side of the side wall of the L-shaped fixing plate (18). The driving end of the linear drive motor (17) is connected to the push rod (19). The top end of the push rod (19) is connected to the bottom end of the push handle (22).

5. The integrated small-scale sewage treatment device for construction caverns according to claim 3, characterized in that: Two connecting rods (16) are fixed to the side end of the U-shaped frame (12). The connecting rods (16) penetrate the side wall of the main filter box (2). A connecting plate (20) is fixedly installed on the outer end of the connecting rods (16). A connecting groove (21) is opened in the middle of the connecting plate (20). A push handle (22) is sleeved in the middle of the connecting plate (21).

6. An integrated small-scale sewage treatment device for construction caverns according to claim 3, characterized in that: The return frame (12) is provided with L-shaped push plates (15) at both ends on one side of the discharge port. The L-shaped push plates (15) are located in the discharge frame (8). The discharge frame (8) is provided with a rotating cover plate (9) on the outside. A sealing strip is provided around the inner side wall of the rotating cover plate (9).

7. The integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The inner walls on both sides of the main filter box (2) are respectively provided with trapezoidal plates (11), and a spiral frame (12) is slidably provided at the top of the trapezoidal plate (11), and the top of the spiral frame (12) is a grid filter (13).

8. The integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The lower ends of the grid filter (13) are respectively provided with first pulleys (14), and the first pulleys (14) are in contact with one side of the trapezoidal slope of the trapezoidal plate (11) through the first limiting groove (23) opened on both sides of the loop frame (12).

9. An integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The inner cavity of the secondary filter box (3) is provided with an activated carbon filter screen (10) in the middle, and the drain pipe (7) is provided on the lower side wall of the activated carbon filter screen (10).

10. An integrated small-scale sewage treatment device for construction caverns according to claim 1, characterized in that: The water inlet end of the second water inlet pipe (5) is located at the bottom of the side wall of the main filter box (2) near the auxiliary filter box (3). The water outlet end of the second water inlet pipe (5) is located at the center of the top plate of the auxiliary filter box (3). A water pump (6) is provided at the water inlet end of the second water inlet pipe (5).

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