Heavy metal polluted underground water remediation and purification equipment

Abstract

The utility model discloses heavy metal polluted groundwater remediation and purification equipment, and relates to the technical field of groundwater remediation. The device comprises a dosing unit and a repairing unit, wherein the dosing unit comprises a medicament tank and a hose; according to the device, a medicine storage tank and a medicine discharging pipe in the medicine feeding mechanism are driven to rotate, a curing agent and a stabilizing agent are rapidly discharged through medicine discharging holes in the rotating process of the medicine discharging pipe, and meanwhile the curing agent and the stabilizing agent make full contact with soil on the wall of a repairing well under the action of centrifugal force; and a mooring rope in the winding and unwinding mechanism is driven to be unwound, the mooring rope enables an equipment sleeve, a chemical storage tank and a chemical discharging pipe to vertically descend in a repairing pipeline through connecting lugs, a curing agent and a stabilizing agent are conveyed to different heights of a repairing well, and the underground water purifying and repairing effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of groundwater remediation technology, specifically to a remediation and purification device for heavy metal-contaminated groundwater. Background Technology

[0002] There are three definitions of groundwater: First, all water buried in the ground that is significantly different from surface water, specifically the water in the saturated zone of an aquifer; second, water that flows downward or seeps in, saturating the soil and rocks and replenishing springs and wells; and third, water stored in underground rock cavities and in the gaps that make up the earth's crust.

[0003] When remediating and purifying groundwater contaminated with heavy metals, a solidifying agent / stabilizing agent is added to the contaminated medium (soil) in situ using a certain amount of mechanical force. After thorough mixing, the solidifying agent reacts with the contaminated medium and pollutants in a physical and chemical manner, thereby solidifying the contaminated soil into a solid body with a complete structure and low permeability coefficient, or transforming the pollutants into a chemically inert form, thereby reducing the migration and diffusion of pollutants in the environment.

[0004] However, existing technologies still have some drawbacks in the process of adding curing agents / stabilizers:

[0005] In the remediation and purification process, existing technologies involve excavating wells in the contaminated soil and delivering chemicals into the wells during the drilling operation. However, due to the excavation process, the delivered chemicals cannot fully contact the soil on the well wall, thus preventing them from contacting the groundwater in the soil and affecting the remediation and purification effect on the groundwater. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide a remediation and purification device for groundwater contaminated with heavy metals.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a groundwater remediation and purification device for heavy metal pollution, the remediation and purification device including a dosing unit and a remediation unit, the dosing unit including a chemical tank and a hose, one end of the hose being connected to a delivery pump on the bottom wall of the chemical tank, the remediation unit including an equipment box, a remediation pipeline and several drainage tanks, the remediation pipeline being fixedly installed on the lower end face of the equipment box, and several drainage tanks being arranged in a ring array on the remediation pipeline;

[0008] The repair pipeline is equipped with a drug delivery mechanism, and the equipment box is equipped with a take-up and release mechanism.

[0009] The drug delivery mechanism includes a sleeve that is slidably disposed inside the repair pipe. A drug storage tank is located inside the sleeve. An inlet pipe is fixedly installed at the top of the sleeve, and the other end of a flexible tube is fixedly connected to one end of the inlet pipe. A discharge pipe is fixedly installed at the bottom of the drug storage tank, and several discharge holes are provided at the bottom of the discharge pipe. A first motor is fixedly installed on the top wall of the sleeve, and a rotating rod is fixedly installed at the drive output end of the first motor. A connecting frame is fixedly installed at one end of the rotating rod, and the connecting frame is fixedly connected to the top of the drug storage tank.

[0010] Preferably, the take-up and release mechanism includes a winding roller, which is disposed inside the equipment box. A cable is wound and connected on the winding roller. A connecting ear is fixedly installed at the top of the equipment sleeve, and one end of the cable is fixedly connected to the connecting ear.

[0011] Preferably, a second motor is fixedly installed on one side of the equipment box, and a rotating shaft is fixedly installed on the drive output end of the second motor. The rotating shaft is rotatably connected to the equipment box, and the winding roller is fixedly installed on the outer wall of the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, by driving the storage tank and discharge pipe in the drug delivery mechanism to rotate, the discharge pipe allows the curing agent and stabilizer to be quickly discharged through the discharge hole during the rotation process. At the same time, under the action of centrifugal force, the curing agent and stabilizer are in full contact with the soil of the well wall of the repair well, thereby effectively improving the remediation and purification effect of groundwater.

[0014] 2. In this utility model, by driving the cable in the winding mechanism to unwind, the cable, through the connecting ear, causes the equipment sleeve, storage tank and discharge pipe to descend vertically in the repair pipeline, delivering the curing agent and stabilizer to different heights in the repair well, thereby further improving the purification and repair effect of groundwater. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a groundwater remediation and purification device for heavy metal pollution according to this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the repair unit of this utility model.

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of part A in the diagram.

[0019] Figure 4 This is a cross-sectional structural diagram of the equipment box and repair pipe of this utility model.

[0020] Figure 5 This utility model Figure 4 Enlarged schematic diagram of part B in the diagram.

[0021] Figure 6 This is a schematic diagram of the connection structure of the drug delivery mechanism and the receiving mechanism of this utility model.

[0022] Figure 7 This utility model Figure 6 Enlarged schematic diagram of part C in the diagram.

[0023] In the diagram: 1. Dosing unit; 2. Repair unit; 11. Chemical tank; 12. Hoist; 21. Equipment box; 22. Lifting lug; 23. Repair pipeline; 24. Drainage trough; 3. Drug delivery mechanism; 31. Equipment sleeve; 32. Drug storage tank; 33. Inlet pipe; 34. First motor; 35. Rotating rod; 36. Connecting frame; 37. Circular guide rail; 38. Arc-shaped slider; 39. Discharge pipe; 4. Discharge hole; 41. Conical seat; 5. Retraction mechanism; 51. Winding roller; 52. Cable; 521. Guide sleeve; 53. Connecting lug; 54. Guide block; 55. Second motor; 56. Rotating shaft. Detailed Implementation

[0024] 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.

[0025] Example: Figure 1-7As shown, this utility model provides a remediation and purification device for heavy metal-contaminated groundwater. The remediation and purification device includes a dosing unit 1 and a remediation unit 2. The dosing unit 1 includes a chemical tank 11 and a hose 12. One end of the hose 12 is connected to a delivery pump on the bottom wall of the chemical tank 11. The remediation unit 2 includes an equipment box 21, lifting lugs 22, a remediation pipe 23, and several drainage tanks 24. The lifting lugs 22 are fixedly installed on the upper end face of the equipment box 21, and the remediation pipe 23 is fixedly installed on the lower end face of the equipment box 21. The several drainage tanks 24 are arranged in a ring array. When repairing groundwater contaminated with heavy metals, the repair pipe 23 is hoisted into the repair well by a crane. The repair well is a pre-excavated underground well. By setting up the hoisting lugs 22, it is easy to assemble the equipment box 21 and the repair pipe 23 onto the crane boom. After the repair pipe 23 enters the interior of the repair well, the curing agent and stabilizer in the chemical tank 11 enter the repair pipe 23 and are discharged outward through the drainage tank 24. The curing agent and stabilizer enter the soil through the well wall to repair and purify the groundwater in the soil.

[0026] The repair pipeline 23 is equipped with a drug delivery mechanism 3, and the equipment box 21 is equipped with a take-up and release mechanism 5. By setting up the drug delivery mechanism 3 and the take-up and release mechanism 5, the take-up and release mechanism 5 can make the drug delivery mechanism 3 vertically rise and fall in the repair pipeline 23. When the drug delivery mechanism 3 descends in the repair pipeline 23, the drug delivery mechanism 3 can deliver the curing agent and stabilizer to different heights in the repair well, so that the curing agent and stabilizer can fully contact the soil on the well wall and improve the purification and repair effect of groundwater.

[0027] The drug delivery mechanism 3 includes a sleeve 31, which is slidably installed inside the repair pipe 23. A drug storage tank 32 is located inside the sleeve 31. An inlet pipe 33 is fixedly installed at the top of the sleeve 31, and the other end of the hose 12 is fixedly connected to one end of the inlet pipe 33. A discharge pipe 39 is fixedly installed at the bottom of the drug storage tank 32, and several discharge holes 4 are opened at the bottom of the discharge pipe 39. A conical seat 41 is fixedly installed at the bottom of the discharge pipe 39. A first motor 34 is fixedly installed on the top wall of the sleeve 31. A rotating rod 35 is fixedly installed at the drive output end of the first motor 34. A connecting frame 36 is fixedly installed at one end of the rotating rod 35, and the connecting frame 36 is fixedly connected to the top of the drug storage tank 32. A circular guide rail 37 is fixedly installed on the inner wall of the sleeve 31, and two... Two arc-shaped sliders 38 are slidably mounted on a circular guide rail 37. By setting up a storage tank 32 and an inlet pipe 33, the curing agent and stabilizer in the agent tank 11 can enter the storage tank 32 through the hose 12. By turning on the first motor 34, the drive shaft of the first motor 34 can rotate the storage tank 32 and the discharge pipe 39 through the rotating rod 35 and the connecting frame 36. The curing agent and stabilizer are discharged through the discharge hole 4. At the same time, under the action of centrifugal force, the curing agent and stabilizer fully contact the soil of the well wall. By setting up a conical seat 41, the conical seat 41 can guide part of the curing agent and stabilizer, so that part of the curing agent and stabilizer is discharged along the conical surface of the conical seat 41 to the periphery of the discharge trough 24. Part of the curing agent and stabilizer contacts the soil of the well wall along the discharge trough 24.

[0028] The take-up and take-down mechanism 5 includes a winding roller 51, which is disposed inside the equipment housing 21. A cable 52 is wound and connected to the winding roller 51. A connecting ear 53 is fixedly installed at the top of the equipment sleeve 31. One end of the cable 52 is fixedly connected to the connecting ear 53. A guide sleeve 521 is fixedly installed on the lower end face of the equipment housing 21. The cable 52 passes through the guide sleeve 521 and makes movable contact with the inner wall of the guide sleeve 521. Two guide blocks 54 are fixedly installed on the outer wall of the equipment sleeve 31. The two guide blocks 54 are slidably installed inside the repair pipe 23. A second motor 55 is fixedly installed on one side of the equipment housing 21. A rotating shaft 56 is fixedly installed at the drive output end of the second motor 55. The rotating shaft 56 and the equipment housing are connected. 21 Rotary connection, the winding roller 51 is fixedly installed on the outer wall of the rotating shaft 56. By driving the winding roller 51 to rotate, the winding roller 51 can wind and unwind the cable 52. The cable 52 can vertically raise and lower the equipment sleeve 31 and the medicine storage tank 32 through the connecting ear 53. By setting the guide sleeve 521, the guide sleeve 521 can guide the cable 52 so that the bottom end of the cable 52 remains vertically lowered. By setting the guide block 54, the guide block 54 can vertically guide the equipment sleeve 31 so that the equipment sleeve 31 remains vertically raised and lowered in the repair pipe 23. By turning on the second motor 55, the drive shaft of the second motor 55 can rotate the winding roller 51 through the rotating shaft 56.

[0029] Working principle: When it is necessary to remediate and purify groundwater contaminated with heavy metals, the workers first excavate a remediation well in the soil using excavation equipment, and then use hoisting equipment to hoist the remediation pipe 23 into the remediation well;

[0030] Subsequently, the operator turned on the delivery pump in the chemical tank 11. The curing agent and stabilizer in the chemical tank 11 entered the storage tank 32 through the hose 12 and the liquid inlet pipe 33. The chemical at the bottom of the storage tank 32 entered the discharge pipe 39.

[0031] At this time, the operator simultaneously starts the first motor 34 and the second motor 55. The drive shaft of the second motor 55 rotates the winding roller 51 through the rotating shaft 56. The winding roller 51 unwinds the cable 52. The cable 52 lowers the equipment sleeve 31 and the medicine storage tank 32 vertically inside the repair pipe 23 through the connecting ear 53.

[0032] The drive shaft of the first motor 34 rotates the storage tank 32 and the discharge pipe 39 via the rotating rod 35 and the connecting frame 36. During the rotation of the discharge pipe 39, the curing agent and stabilizer are quickly discharged through multiple discharge holes 4. At the same time, under the action of centrifugal force, the curing agent and stabilizer are in full contact with the soil of the well wall of the repair well, and the curing agent and stabilizer are delivered to different heights of the repair well, thereby improving the purification and repair effect of groundwater.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A remediation and purification device for heavy metal-contaminated groundwater, characterized in that, The repair and purification equipment includes a dosing unit (1) and a repair unit (2). The dosing unit (1) includes a chemical tank (11) and a hose (12). One end of the hose (12) is connected to a delivery pump on the bottom wall of the chemical tank (11). The repair unit (2) includes an equipment box (21), a repair pipe (23), and several drainage tanks (24). The repair pipe (23) is fixedly installed on the lower end face of the equipment box (21). Several drainage tanks (24) are arranged in a ring array on the repair pipe (23). The repair pipeline (23) is equipped with a drug delivery mechanism (3), and the equipment box (21) is equipped with a take-up and release mechanism (5). The drug delivery mechanism (3) includes a device sleeve (31), which is slidably disposed inside the repair pipe (23). The inside of the device sleeve (31) is a drug storage tank (32). An inlet pipe (33) is fixedly installed at the top of the device sleeve (31). The other end of the hose (12) is fixedly connected to one end of the inlet pipe (33). A discharge pipe (39) is fixedly installed at the bottom of the drug storage tank (32). Several discharge holes (4) are opened at the bottom of the discharge pipe (39). A first motor (34) is fixedly installed on the top wall of the device sleeve (31). A rotating rod (35) is fixedly installed at the drive output end of the first motor (34). A connecting frame (36) is fixedly installed at one end of the rotating rod (35). The connecting frame (36) is fixedly connected to the top of the drug storage tank (32).

2. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 1, characterized in that, The repair unit (2) also includes a lifting lug (22), which is fixedly installed on the upper surface of the equipment box (21).

3. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 1, characterized in that, A conical seat (41) is fixedly installed at the bottom end of the discharge pipe (39).

4. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 1, characterized in that, The inner wall of the equipment sleeve (31) is fixedly installed with a circular guide rail (37), and the outer wall of the medicine storage tank (32) is fixedly installed with two arc-shaped sliders (38), which are slidably mounted on the circular guide rail (37).

5. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 1, characterized in that, The take-up and take-down mechanism (5) includes a winding roller (51), which is set inside the equipment box (21). A cable (52) is wound and connected on the winding roller (51). A connecting ear (53) is fixedly installed on the top end of the equipment sleeve (31). One end of the cable (52) is fixedly connected to the connecting ear (53).

6. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 5, characterized in that, A second motor (55) is fixedly installed on one side of the equipment box (21). A rotating shaft (56) is fixedly installed at the drive output end of the second motor (55). The rotating shaft (56) is rotatably connected to the equipment box (21). The winding roller (51) is fixedly installed on the outer wall of the rotating shaft (56).

7. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 5, characterized in that, A guide sleeve (521) is fixedly installed on the lower end face of the equipment box (21), and the cable (52) passes through the guide sleeve (521) and makes contact with the inner wall of the guide sleeve (521).

8. The heavy metal contaminated groundwater remediation and purification equipment as described in claim 5, characterized in that, Two guide blocks (54) are fixedly installed on the outer wall of the equipment sleeve (31), and the two guide blocks (54) are slidably installed inside the repair pipe (23).

Images