Automatic treatment device for tunnel sewage

Abstract

The utility model discloses an automatic tunnel sewage treatment device which comprises a dissolving tank and a stirring motor, the stirring motor is installed in the middle of the top end of the dissolving tank, a stirring rod is arranged at the output end of the stirring motor and inserted into the dissolving tank, an oxalic acid storage tank is installed at the top of the side face of the dissolving tank, and a liquid level sensor is arranged in the dissolving tank. A dosing pipe is arranged on one side of the dissolving box, the bottom end of the dosing pipe is connected with a metering pump, the water suction end of the metering pump is connected with the bottom end of the dissolving box and communicated with the interior of the dissolving box, a control box is arranged on the side face of the dissolving box, and the control box is electrically connected with the metering pump, a stirring motor, a liquid level sensor and an oxalic acid storage box. The control box is connected with a remote water pump, and the remote water pump is connected with the water inlet end of the dissolving box through a water pipe. An oxalic acid storage box is additionally mounted at the top of the solution box, a conveying screw is mounted at the bottom of the oxalic acid storage box, oxalic acid is added into the dissolving box through the conveying screw, and a liquid level sensor is arranged in the dissolving box.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an automatic treatment device for tunnel sewage. Background Art

[0002] During the construction of the tunnel, the sewage generated by the construction needs to be treated. The common treatment method now is to use a pump to pump the sewage into the sewage treatment equipment for centralized treatment. After the sewage is treated to the discharge standard, it can be directly discharged into the river.

[0003] Most of the existing equipment for tunnel sewage treatment will use automatic sewage treatment equipment. For example, the Chinese patent authorization announcement number CN210656307U discloses an automatic tunnel sewage treatment device, which is equipped with a medicine storage barrel for storing PAC solution; a submersible liquid level meter is arranged at the sewage discharge port, the submersible liquid level meter is connected to a liquid level transmitter, and the liquid level transmitter is connected to an intelligent light column measurement and control instrument; the intelligent light column measurement and control instrument is also connected to an adjustable flow pump, the inlet end of the adjustable flow pump is connected to a medicine suction tube placed in the medicine storage barrel, and the outlet end is connected to a medicine delivery tube placed in the sewage discharge port; the sewage discharge port, the tertiary sedimentation tank and the clean water discharge port are connected in sequence.

[0004] The automated sewage treatment device provided by the above patent is safe and reliable, has low energy consumption, and saves construction costs; it automatically adds drugs to achieve standard discharge after tunnel sewage treatment. The existing sewage treatment equipment of this structure has an automated PAC solution storage barrel, and the actual treatment of tunnel sewage requires pre-precipitation of the sewage first, and then transfer the sewage to the neutralization tank, and then transfer the sewage to the lifting tank after treatment in the neutralization tank, and finally transfer the sewage inside the lifting tank to the decentralized tunnel sewage treatment equipment for final treatment. The automated PAC solution storage barrel needs to be set between the lifting tank and the decentralized tunnel sewage treatment equipment; however, oxalic acid is often required to be added to the neutralization tank for tunnel sewage treatment, because tunnel sewage often contains a large amount of calcium and magnesium ions and heavy metal ions, and oxalic acid can be used to quickly and effectively neutralize the metal ions and calcium and magnesium ions in the tunnel sewage; however, the existing sewage treatment equipment does not have an automated oxalic acid solution preparation and addition equipment, resulting in the staff also needing to prepare oxalic acid solution separately, affecting the efficiency of sewage treatment, and easily causing a waste of human resources. Utility Model Content

[0005] The purpose of the utility model is to provide an automated tunnel sewage treatment device, aiming to improve the problem that the existing sewage treatment equipment does not have automated oxalic acid solution preparation and addition equipment, resulting in the staff needing to prepare oxalic acid solution separately, affecting the efficiency of sewage treatment and easily causing a waste of human resources.

[0006] The utility model is achieved in this way:

[0007] An automatic treatment device for tunnel sewage comprises a dissolution box and a stirring motor, wherein the stirring motor is installed in the middle of the top of the dissolution box, the output end of the stirring motor is provided with a stirring rod which is inserted into the dissolution box, an oxalic acid storage box is installed on the top of the side of the dissolution box, a liquid level sensor is provided inside the dissolution box, a dosing pipe is provided on one side of the dissolution box, a metering pump is connected to the bottom end of the dosing pipe, the water suction end of the metering pump is connected to the bottom end of the dissolution box and communicates with the inside of the dissolution box, a control box is provided on the side of the dissolution box, the control box is electrically connected to the metering pump, the stirring motor, the liquid level sensor and the oxalic acid storage box, the control box is connected to a remote water pump, and the remote water pump is connected to the water inlet end of the dissolution box through a water pipe.

[0008] Preferably, a feeding pipe is provided at the top of the side of the dissolution box, a first flange is provided at the end of the feeding pipe for connecting to the oxalic acid storage box, and a bearing is provided in the middle of the upper surface of the dissolution box for connecting to the output end of the stirring motor.

[0009] Preferably, a water supply pipe is provided on the upper surface of the dissolution box, a second flange is provided on the top of the water supply pipe, and a water suction elbow is provided on the bottom of the side of the dissolution box for connecting with the water suction end of the metering pump.

[0010] Preferably, a fixing plate is provided at one end of the stirring motor that is attached to the dissolution box, and a plurality of fixing holes are provided at the edge of the fixing plate. The fixing plate cooperates with the fixing holes to facilitate fixing the stirring motor by bolts, and a stirring blade is provided at the bottom end of the stirring rod.

[0011] Preferably, the oxalic acid storage box includes a box body, a conveying cylinder, a conveying screw and a feeding motor. A conveying cylinder is provided at the bottom end of the box body, and the conveying screw is installed inside the conveying cylinder and is rotatably connected to the conveying cylinder. The feeding motor is installed at one end of the conveying cylinder where no opening is provided, and the output end of the feeding motor is connected to the conveying screw.

[0012] Preferably, the feeding motor is connected to the control box, and a third flange is provided at one end of the conveying cylinder facing the dissolution box for connecting with the dissolution box, and a sealing cover is provided at the top opening of the box body for sealing the feeding port of the box body.

[0013] Preferably, a plurality of connecting feet are provided at one end of the metering pump that is attached to the dissolution box, and bolt holes are provided on the connecting feet. The connecting feet and the bolt holes are used to fix the metering pump by bolts. Two connecting pipes are symmetrically provided on the side of the metering pump, and connecting caps are provided at the ends of the connecting pipes. The two connecting pipes serve as the water suction end and the drainage end of the metering pump respectively.

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

[0015] 1. An oxalic acid storage box is installed on the top of the solution tank, and a conveying screw is installed at the bottom of the oxalic acid storage box. Oxalic acid is added to the dissolution box through the conveying screw, and a liquid level sensor is provided inside the dissolution box. When the liquid level is too low, the control box will be triggered to control the remote water pump to add water to the dissolution box. At the same time, the control box will also control the operation of the stirring motor and the feeding motor, so that oxalic acid can be smoothly added to the dissolution tank, and the stirring of the stirring motor can make the oxalic acid quickly and evenly dissolved in the water. The control box can also control the quantitative pump to add oxalic acid solution to the neutralization tank.

[0016] 2. The oxalic acid storage box is installed on the top of the solution tank to facilitate the addition of oxalic acid. The oxalic acid storage box is also easy to disassemble and assemble. There will be no blockage problem when adding oxalic acid into the solution tank by screw conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the dissolving box of the utility model at an oblique downward angle from the right front end;

[0019] Figure 3 It is a structural schematic diagram of the dissolving box of the utility model at an oblique downward angle from the left front end;

[0020] Figure 4 It is a structural schematic diagram of the stirring motor of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the oxalic acid storage box of the utility model at the front oblique downward angle;

[0022] Figure 6 It is a structural schematic diagram of the oxalic acid storage box of the utility model at an oblique upward viewing angle from the front end;

[0023] Figure 7 It is a structural schematic diagram of the utility model quantitative pump;

[0024] Figure 8 It is a structural block diagram of the control box connection device of the utility model.

[0025] In the figure: 1. dissolving box; 11. feeding pipe; 12. first flange; 13. bearing; 14. water feeding pipe; 15. second flange; 16. dosing pipe; 17. control box; 18. water suction elbow; 2. stirring motor; 21. fixing plate; 22. fixing hole; 23. stirring rod; 24. stirring blade; 3. oxalic acid storage box; 31. box body; 311. sealing cover; 32. conveying cylinder; 321. third flange; 33. feeding motor; 34. conveying screw; 4. metering pump; 41. connecting pipe; 42. connecting foot; 43. bolt hole; 44. connecting cap. DETAILED DESCRIPTION

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, an automatic treatment device for tunnel sewage includes a dissolution box 1 and a stirring motor 2. The stirring motor 2 is installed at the middle of the top of the dissolution box 1. The dissolution box 1 is convenient for dissolving oxalic acid and making oxalic acid solution. The output end of the stirring motor 2 is provided with a stirring rod 23 inserted into the dissolution box 1. The stirring motor 2 is convenient for quickly and evenly mixing water and oxalic acid to make a uniform oxalic acid solution. An oxalic acid storage box 3 is installed on the top of the side of the dissolution box 1. The oxalic acid storage box 3 is convenient for adding oxalic acid solution to the dissolution box 1. A liquid level sensor is provided inside the dissolution box 1. The liquid level sensor is convenient for sensing the content of the oxalic acid solution inside the dissolution box 1. A dosing pipe 16 is provided on one side of the dissolution box 1. The bottom end of the dosing pipe 16 is connected to a metering pump 4. The water suction end of the metering pump 4 is connected to the bottom end of the dissolution box 1 and communicates with the inside of the dissolution box 1. The dosing pipe 16 is convenient for cooperating with the metering pump 4 to add medicine to the neutralization tank, so that the sewage can enter the neutralization tank smoothly. A control box 17 is provided on the side of the dissolution tank 1. The control box 17 is electrically connected to the metering pump 4, the stirring motor 2, the liquid level sensor and the oxalic acid storage tank 3. The control box 17 is connected to a remote water pump, which is connected to the water inlet end of the dissolution tank 1 through a water pipe. The control box 17 is convenient for controlling the operation of the metering pump 4, the stirring motor 2 and the oxalic acid storage tank 3, and is also convenient for controlling the remote water pump to add water to the inside of the dissolution tank 1.

[0030] Working principle: When the liquid level sensor senses that the oxalic acid solution in the dissolution tank 1 is insufficient, it will feed back the signal to the control box 17, and then the control box 17 controls the remote water pump to add water to the dissolution tank 1. At the same time, the control box 17 also conveniently controls the oxalic acid storage tank 3 to add oxalic acid to the dissolution tank 1. When water and oxalic acid are injected into the dissolution tank 1, the stirring motor 2 is started so that the oxalic acid can be fully dissolved in the water. When the oxalic acid solution is configured, the remote water pump, the stirring motor 2 and the oxalic acid storage tank 3 are stopped. When it is necessary to add oxalic acid solution to the neutralization tank, it is only necessary to control the metering pump 4 to extract the oxalic acid solution. Compared with the prior art, the present application has an oxalic acid storage box 3 installed on the top of the solution box, and a conveying screw 34 installed at the bottom of the oxalic acid storage box 3. Oxalic acid is added to the dissolution box 1 through the conveying screw 34, and a liquid level sensor is provided inside the dissolution box 1. When the liquid level is too low, the control box will be triggered to control the remote water pump to add water to the dissolution box 1. At the same time, the control box 17 will also control the operation of the stirring motor 2 and the feeding motor 33, so that oxalic acid can be smoothly added to the dissolution box 1, and the stirring of the stirring motor 2 makes the oxalic acid quickly and evenly dissolved in the water, and the control box 17 can also control the metering pump 4 to add oxalic acid solution to the neutralization tank.

[0031] Example 2

[0032] like Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, an automatic treatment device for tunnel sewage includes a dissolution box 1 and a stirring motor 2. The stirring motor 2 is installed at the middle of the top of the dissolution box 1. The dissolution box 1 is convenient for dissolving oxalic acid and making oxalic acid solution. The output end of the stirring motor 2 is provided with a stirring rod 23 inserted into the dissolution box 1. The stirring motor 2 is convenient for quickly and evenly mixing water and oxalic acid to make a uniform oxalic acid solution. An oxalic acid storage box 3 is installed on the top of the side of the dissolution box 1. The oxalic acid storage box 3 is convenient for adding oxalic acid solution to the dissolution box 1. A liquid level sensor is provided inside the dissolution box 1. The liquid level sensor is convenient for sensing the content of the oxalic acid solution inside the dissolution box 1. A dosing pipe 16 is provided on one side of the dissolution box 1. The bottom end of the dosing pipe 16 is connected to a metering pump 4. The water suction end of the metering pump 4 is connected to the bottom end of the dissolution box 1 and communicates with the inside of the dissolution box 1. The dosing pipe 16 is convenient for cooperating with the metering pump 4 to add medicine to the neutralization tank, so that the sewage can enter the neutralization tank smoothly. A control box 17 is provided on the side of the dissolution tank 1. The control box 17 is electrically connected to the metering pump 4, the stirring motor 2, the liquid level sensor and the oxalic acid storage tank 3. The control box 17 is connected to a remote water pump, which is connected to the water inlet end of the dissolution tank 1 through a water pipe. The control box 17 is convenient for controlling the operation of the metering pump 4, the stirring motor 2 and the oxalic acid storage tank 3, and is also convenient for controlling the remote water pump to add water to the inside of the dissolution tank 1.

[0033] like Figure 2 and Figure 3As shown, a feeding pipe 11 is provided at the top of the side of the dissolution tank 1, and a first flange 12 is provided at the end of the feeding pipe 11 for connecting with the oxalic acid storage tank 3, and a bearing 13 is provided in the middle of the upper surface of the dissolution tank 1 for connecting with the output end of the stirring motor 2. A water adding pipe 14 is provided on the upper surface of the dissolution tank 1, and a second flange 15 is provided on the top of the water adding pipe 14. The water adding pipe 14 and the second flange 15 are convenient for matching with the water injection pipe, so that the water injection pipe is conveniently connected to the dissolution tank 1. A water suction elbow 18 is provided at the bottom of the side of the dissolution tank 1 for connecting with the water suction end of the metering pump 4.

[0034] like Figure 4 As shown, a fixing plate 21 is provided at one end of the stirring motor 2 which is attached to the dissolution box 1, and a plurality of fixing holes 22 are provided at the edge of the fixing plate 21. The fixing plate 21 cooperates with the fixing holes 22 to facilitate fixing the stirring motor 2 by bolts. A stirring blade 24 is provided at the bottom end of the stirring rod 23. The stirring blade 24 facilitates the rapid and uniform stirring of the mixture of oxalic acid and water.

[0035] like Figure 5 and Figure 6 As shown, the oxalic acid storage box 3 includes a box body 31, a conveying cylinder 32, a conveying screw 34 and a feeding motor 33. The bottom end of the box body 31 is provided with a conveying cylinder 32, and the conveying screw 34 is installed inside the conveying cylinder 32 and is rotatably connected to the conveying cylinder 32. The feeding motor 33 is installed at one end of the conveying cylinder 32 where no opening is provided, and the output end of the feeding motor 33 is connected to the conveying screw 34. This structure can drive the conveying screw 34 to rotate by the feeding motor 33 to transport the oxalic acid inside the box body 31 to the inside of the dissolving box 1 through the conveying cylinder 32, and the feeding will stop when the feeding motor 33 stops. The structure is simple and stable to operate, and there will be no clogging problem. The feeding motor 33 is connected to the control box 17, and the end of the conveying cylinder 32 facing the dissolving box 1 is provided with a third flange 321 for connecting with the dissolving box 1, and a cover 311 is provided at the top opening of the box body 31 for blocking the feeding port of the box body 31.

[0036] like Figure 7 As shown, one end of the metering pump 4 that is attached to the dissolution box 1 is provided with a plurality of connecting feet 42, and the connecting feet 42 are provided with bolt holes 43. The connecting feet 42 cooperate with the bolt holes 43 to facilitate fixing the metering pump 4 by bolts. Two connecting pipes 41 are symmetrically provided on the side of the metering pump 4, and connecting caps 44 are provided at the ends of the connecting pipes 41. The two connecting pipes 41 serve as the water suction end and the drainage end of the metering pump 4 respectively. The connecting pipes 41 and the connecting caps 44 are used to connect with the dosing pipe 16 and the water suction elbow 18.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic treatment device for tunnel sewage, comprising a dissolution tank (1) and a stirring motor (2), characterized in that: A stirring motor (2) is installed in the middle of the top of the dissolution box (1); a stirring rod (23) is provided at the output end of the stirring motor (2) and is inserted into the dissolution box (1); an oxalic acid storage box (3) is installed at the top of the side of the dissolution box (1); a liquid level sensor is provided inside the dissolution box (1); a dosing pipe (16) is provided on one side of the dissolution box (1); a metering pump (4) is connected to the bottom end of the dosing pipe (16); a water suction end of the metering pump (4) is connected to the bottom end of the dissolution box (1) and communicates with the inside of the dissolution box (1); a control box (17) is provided on the side of the dissolution box (1); the control box (17) is electrically connected to the metering pump (4), the stirring motor (2), the liquid level sensor and the oxalic acid storage box (3); the control box (17) is connected to a remote water pump; and the remote water pump is connected to the water inlet end of the dissolution box (1) through a water pipe.

2. The automatic tunnel sewage treatment device according to claim 1 is characterized in that: A feeding pipe (11) is provided at the top of the side of the dissolution box (1), and a first flange (12) is provided at the end of the feeding pipe (11) for connecting to the oxalic acid storage box (3), and a bearing (13) is provided in the middle of the upper surface of the dissolution box (1) for connecting to the output end of the stirring motor (2).

3. The automatic tunnel sewage treatment device according to claim 2 is characterized in that: The upper surface of the dissolution box (1) is provided with a water supply pipe (14), the top of the water supply pipe (14) is provided with a second flange (15), and the bottom of the side of the dissolution box (1) is provided with a water suction elbow (18) for connecting with the water suction end of the metering pump (4).

4. The automatic tunnel sewage treatment device according to claim 1 is characterized in that: A fixing plate (21) is provided at one end of the stirring motor (2) that is in contact with the dissolving box (1). A plurality of fixing holes (22) are provided at the edge of the fixing plate (21). The fixing plate (21) cooperates with the fixing holes (22) to facilitate fixing the stirring motor (2) by bolts. A stirring blade (24) is provided at the bottom end of the stirring rod (23).

5. The automatic tunnel sewage treatment device according to claim 1 is characterized in that: The oxalic acid storage box (3) comprises a box body (31), a conveying cylinder (32), a conveying screw (34) and a feeding motor (33); a conveying cylinder (32) is provided at the bottom end of the box body (31), and the conveying screw (34) is installed inside the conveying cylinder (32) and is rotatably connected to the conveying cylinder (32); the feeding motor (33) is installed at an end of the conveying cylinder (32) where no opening is provided, and the output end of the feeding motor (33) is connected to the conveying screw (34).

6. The automatic tunnel sewage treatment device according to claim 5 is characterized in that: The feeding motor (33) is connected to the control box (17), and a third flange (321) is provided at one end of the conveying cylinder (32) facing the dissolution box (1) for connecting with the dissolution box (1), and a sealing cover (311) is provided at the top opening of the box body (31) for sealing the feed inlet of the box body (31).

7. An automatic tunnel sewage treatment device according to any one of claims 1 to 6, characterized in that: The metering pump (4) is provided with a plurality of connecting feet (42) at one end thereof which is in contact with the dissolution box (1). The connecting feet (42) are provided with bolt holes (43). The connecting feet (42) cooperate with the bolt holes (43) to fix the metering pump (4) by means of bolts. Two connecting pipes (41) are symmetrically provided on the side of the metering pump (4). The ends of the connecting pipes (41) are provided with connecting caps (44). The two connecting pipes (41) serve as the water suction end and the water discharge end of the metering pump (4), respectively.

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