Equipment for repairing heavy metal cadmium polluted cultivated land soil

Abstract

The utility model relates to the technical field of soil remediation, in particular to equipment for remediation of heavy metal cadmium polluted cultivated land soil. The technical problem is that after heavy metal cadmium in soil is repaired by traditional soil repairing equipment, part of heavy metal components still remain in the soil; according to the technical scheme, the equipment for repairing the heavy metal cadmium polluted cultivated land soil comprises a treatment box, an adjusting assembly, a repairing assembly, a material guiding assembly, a precipitation assembly, a material discharging assembly and a supporting assembly; compared with a traditional soil remediation device which can still remain part of heavy metal components in the soil after heavy metal cadmium in the soil is remediated, the device enables the heavy metal components to form granular compounds through electrochemical reaction, the metal compounds are filtered out, meanwhile, useful soil particles are reserved so as to be reused, and the device has the advantages that the device is simple in structure and convenient to use. And the liquid can be used as a regenerated water source after heavy metal ions are removed, so that the heavy metal and the liquid are separated and recycled to reduce further pollution to the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, in particular to a device for remediating cadmium-polluted arable land soil. Background Art

[0002] A soil remediation device is a tool used to improve the quality of polluted or degraded soil. These devices can remediate soil through different methods, including physical and chemical remediation. In terms of physical remediation, the device can be used to remove pollutants or change the soil structure to improve soil aeration and water retention capacity. In chemical remediation, the device can spray special chemicals to neutralize pollutants or promote their decomposition. However, during the use of traditional soil remediation devices, when remediating heavy metal cadmium in the soil, cadmium pollution deposits inside the soil, and after decomposing it with drugs, there will still be some heavy metal components remaining in the soil, causing pollution to the soil. Content of the Utility Model

[0003] In order to overcome the problem that during the operation of traditional soil remediation devices in daily use, when remediating heavy metal cadmium in the soil, cadmium pollution deposits inside the soil, and after decomposing it with drugs, there will still be some heavy metal components remaining in the soil, causing pollution to the soil.

[0004] The technical solution of the utility model is: a device for remediating cadmium-polluted arable land soil, including a treatment tank, an adjustment component, a remediation component, a feeding component, a precipitation component, a discharging component, and a support component; an adjustment component with an adjustment function is arranged on one side of the treatment tank, a remediation component with a remediation function is arranged above the adjustment component, a feeding component with a feeding function is arranged inside the treatment tank, a precipitation component with a precipitation function is arranged below the treatment tank, a discharging component with a discharging function is arranged above the precipitation component, and a support component with a support function is arranged below the precipitation component.

[0005] Preferably, the soil to be remediated is stored and treated in the treatment tank, the adjustment component is started to drive the remediation component to move up and down, the electrolyte solution is introduced into the treatment tank through the feeding component, the remediation component is started to form granular complexes of heavy metal ions and the feeding component is introduced into the precipitation component, the precipitation component makes the heavy metal granular complexes form flocs and conducts precipitation treatment, the liquid is discharged through the discharging component, and the support component supports and dampens the device.

[0006] Preferably, the adjustment assembly includes a motor, a threaded rod, and a connecting plate; a motor is provided on one side of the processing box, the output end of the motor is provided with a threaded rod, the outer side of the threaded rod is provided with a connecting plate, and the connecting plate is threadedly connected to the threaded rod. During use, the motor is started to drive the threaded rod to rotate, and the rotation of the threaded rod drives the connecting plate to move up and down.

[0007] Preferably, the repair assembly includes a power supply, a wire, and an electrode plate; a power supply is provided above the connecting plate, a wire is provided on one side of the power supply, and one end of the wire is provided with an electrode plate. During use, the power supply is started to energize the electrode plate through the wire.

[0008] Preferably, the material guiding assembly includes a filter rack, a discharge pipe, and a feed pipe; a filter rack is provided inside the processing box, a discharge pipe is provided below the filter rack, the discharge pipe is controlled by an electromagnetic valve, and a feed pipe is provided above the processing box. During use, the electrolyte solution is injected into the soil inside the processing box through the feed pipe. After the electrolyte solution is injected, an electrochemical reaction area is formed around the electrode plate, current is generated between the electrode plates, thereby starting the electrochemical reaction in the solution. The ions generated by the electrochemical reaction will undergo an electrochemical reaction with the heavy metal ions in the soil, and the heavy metal ions form granular complexes around the electrode plate through the filter rack.

[0009] Preferably, the precipitation assembly includes a sedimentation tank and a support; a sedimentation tank is provided below the processing box, and a first support is provided below the processing box. There are multiple groups of the first supports. During use, the processing box is supported by the supports, and the liquid containing heavy metal granular complexes is introduced into the sedimentation tank through the discharge pipe. By adding caustic soda and polyaluminum chloride into the sedimentation tank, the heavy metal granular complexes are flocculated and precipitated inside the sedimentation tank to form immobile sludge, so as to separate free water.

[0010] Preferably, the discharging assembly includes a fixing frame and a discharge pipe; a fixing frame is provided above the sedimentation tank, and a discharge pipe is provided inside the fixing frame. During use, the position of the discharge pipe is fixed by the fixing frame, and the free water separated in the sedimentation tank can be discharged through the discharge pipe and used as a recycled water resource for reuse, thereby separating and recovering heavy metals and liquids to reduce further pollution to the environment.

[0011] Preferably, the support assembly includes a second support and a shock pad; a second support is provided below the sedimentation tank, there are multiple groups of the second supports, and a shock pad is provided below the second support. During use, the sedimentation tank is supported by the second supports, thereby supporting the repair equipment. The second supports are shock-absorbed by the shock pads, thereby improving the stability of the repair equipment during use.

[0012] Advantages of the present utility model:

[0013] 1. Compared with traditional soil remediation equipment that improves soil aeration and water retention capacity by removing pollutants or changing soil structure and neutralizes or promotes the decomposition of pollutants by spraying special chemicals, when traditional soil remediation equipment remediates heavy metal cadmium in soil, cadmium pollution deposits inside the soil. After using drugs to decompose it, some heavy metal components still remain in the soil, causing pollution to the soil. This device forms granular complexes of heavy metal components through electrochemical reactions, filters out the metal complexes, and retains useful soil particles for reuse. After the liquid removes heavy metal ions, it can be used as a renewable water source, realizing the separation and recovery of heavy metals and liquids to reduce further environmental pollution;

[0014] 2. The power supply is turned on to energize the electrode plates through wires. The electrolyte solution is injected into the soil inside the treatment tank through the feed pipe. After the injection of the electrolyte solution, an electrochemical reaction area is formed around the electrode plates. An electric current is generated between the electrode plates, thus initiating the electrochemical reaction in the solution. The ions generated by the electrochemical reaction will react electrochemically with the heavy metal ions in the soil. The heavy metal ions form granular complexes around the electrode plates through the filter rack. The liquid containing the heavy metal granular complexes is introduced into the sedimentation tank through the discharge pipe. By adding caustic soda and polyaluminum chloride inside the sedimentation tank, the heavy metal granular complexes form flocs and are precipitated inside the sedimentation tank, forming immobile sludge to separate free water. The free water separated from the sedimentation tank can be discharged through the discharge pipe and used as a renewable water resource for reuse, thus separating and recovering heavy metals and liquids to reduce further environmental pollution;

[0015] 3. The sedimentation tank is supported by the second bracket, thus supporting the remediation equipment. The second bracket is shock-absorbed by the shock-absorbing pads, thus shock-absorbing the second bracket and improving the stability of the remediation equipment during use. Description of the Drawings

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of the equipment for remediating heavy metal cadmium-polluted arable land soil of the present utility model;

[0017] Figure 2 Shown is a partial three-dimensional structural schematic diagram of the equipment for remediating heavy metal cadmium-polluted arable land soil of the present utility model;

[0018] Figure 3 Shown is a first cross-sectional structural schematic diagram of the equipment for remediating heavy metal cadmium-polluted arable land soil of the present utility model;

[0019] Figure 4The second sectional structure schematic diagram of the device for heavy metal cadmium contaminated cultivated land soil remediation of the present utility model is shown;

[0020] Description of reference numerals: 1, treatment tank; 2, adjustment assembly; 201, motor; 202, threaded rod; 203, connecting plate; 3, remediation assembly; 301, power supply; 302, wire; 303, electrode plate; 4, feeding assembly; 401, filter rack; 402, discharge pipe; 403, feeding pipe; 5, precipitation assembly; 501, sedimentation tank; 502, first support; 6, discharging assembly; 601, fixing frame; 602, discharge pipe; 7, support assembly; 701, second support; 702, shock pad. Specific embodiments

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to Figure 1 , the present utility model provides an embodiment: a device for heavy metal cadmium contaminated cultivated land soil remediation, comprising a treatment tank 1, an adjustment assembly 2, a remediation assembly 3, a feeding assembly 4, a precipitation assembly 5, a discharging assembly 6 and a support assembly 7; an adjustment assembly 2 with an adjustment function is arranged on one side of the treatment tank 1, a remediation assembly 3 with a remediation function is arranged above the adjustment assembly 2, a feeding assembly 4 with a feeding function is arranged inside the treatment tank 1, a precipitation assembly 5 with a precipitation function is arranged below the treatment tank 1, a discharging assembly 6 with a discharging function is arranged above the precipitation assembly 5, and a support assembly 7 with a support function is arranged below the precipitation assembly 5.

[0023] Please refer to Figures 2 - 4, in this embodiment, the adjusting component 2 includes a motor 201, a threaded rod 202 and a connecting plate 203; a motor 201 is provided on one side of the processing box 1, the output end of the motor 201 is provided with a threaded rod 202, and a connecting plate 203 is provided on the outer side of the threaded rod 202. The connecting plate 203 is threadedly connected to the threaded rod 202. During use, the motor 201 is started to drive the threaded rod 202 to rotate, and the connecting plate 203 is driven to move up and down by the rotation of the threaded rod 202. The repair component 3 includes a power supply 301, a wire 302 and an electrode plate 303; a power supply 301 is provided above the connecting plate 203, a wire 302 is provided on one side of the power supply 301, and an electrode plate 303 is provided at one end of the wire 302. During use, the power supply 301 is started to energize the electrode plate 303 through the wire 302. The material guiding component 4 includes a filter rack 401, a discharge pipe 402 and a feed pipe 403; a filter rack 401 is provided inside the processing box 1, a discharge pipe 402 is provided below the filter rack 401, and the discharge pipe 402 is controlled by an electromagnetic valve. A feed pipe 403 is provided above the processing box 1. During use, the electrolyte solution is injected into the soil inside the processing box 1 through the feed pipe 403. After the electrolyte solution is injected, an electrochemical reaction area is formed around the electrode plate 303, and an electric current is generated between the electrode plates 303, thereby starting the electrochemical reaction in the solution. The ions generated by the electrochemical reaction will react electrochemically with the heavy metal ions in the soil, and the heavy metal ions form granular complexes around the electrode plate 303 through the filter rack 401.

[0024] The precipitation assembly 5 includes a sedimentation tank 501 and a support; a sedimentation tank 501 is provided below the treatment tank 1, and a first support 502 is provided below the treatment tank 1. There are multiple groups of the first supports 502. During use, the treatment tank 1 is supported by the support, and the liquid containing heavy metal granular complexes is introduced into the sedimentation tank 501 through the discharge pipe 402. By adding caustic soda and polyaluminum chloride into the sedimentation tank 501, the heavy metal granular complexes form flocs and are precipitated inside the sedimentation tank 501 to form non-flowing sludge, so as to separate free water. The discharging assembly 6 includes a fixing frame 601 and a discharging pipe 602; a fixing frame 601 is provided above the sedimentation tank 501, and a discharging pipe 602 is provided inside the fixing frame 601. During use, the position of the discharging pipe 602 is fixed by the fixing frame 601, and the free water separated in the sedimentation tank 501 can be discharged through the discharging pipe 602 and used as a recycled water resource for reuse, so as to separate and recover heavy metals and liquids to reduce further pollution to the environment. The supporting assembly 7 includes a second support 701 and a shock pad 702; a second support 701 is provided below the sedimentation tank 501. There are multiple groups of the second supports 701, and a shock pad 702 is provided below the second support 701. During use, the sedimentation tank 501 is supported by the second support 701, so as to support the repair equipment. The second support 701 is shock-absorbed by the shock pad 702, so as to shock-absorb the second support 701 and improve the stability of the repair equipment during use.

[0025] During operation, first, the sedimentation tank 501 is supported by the second support 701, so as to support the repair equipment. The second support 701 is shock-absorbed by the shock pad 702, so as to shock-absorb the second support 701.

[0026] After the device is installed and fixed, the power supply 301 is started to energize the electrode plate 303 through the wire 302. The electrolyte solution is injected into the soil inside the treatment tank 1 through the feed pipe 403. After the electrolyte solution is injected, an electrochemical reaction area is formed around the electrode plate 303, and an electric current is generated between the electrode plates 303, thereby starting the electrochemical reaction in the solution. The ions generated by the electrochemical reaction will react electrochemically with the heavy metal ions in the soil, and the heavy metal ions form granular complexes around the electrode plate 303 through the filter rack 401;

[0027] After the electrochemical reaction is completed, the liquid containing the heavy metal granular complex is introduced into the sedimentation tank 501 through the discharge pipe 402. By adding caustic soda and polyaluminum chloride inside the sedimentation tank 501, the heavy metal granular complex forms flocs and undergoes sedimentation treatment inside the sedimentation tank 501 to form immobile sludge, so as to separate free water. The free water separated in the sedimentation tank 501 can be discharged through the discharge pipe 602 and used as a regenerated water resource for reuse.

[0028] Through the above steps, the treatment tank 1 is used to store and treat the soil to be repaired, the start adjustment component 2 is used to drive the repair component 3 to move up and down, the feeding component 4 is used to introduce the electrolyte solution into the treatment tank 1, the start repair component 3 is used to form the heavy metal ions into granular complexes and introduce the feeding component 4 into the precipitation component 5, the precipitation component 5 is used to make the heavy metal granular complexes form flocs and undergo sedimentation treatment, the discharging component 6 is used to discharge the liquid, and the support component 7 is used to support and shock-absorb the device.

[0029] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A device for remediating cultivated soil contaminated by heavy metal cadmium, comprising a treatment box (1); characterized in that: The invention also comprises an adjusting component (2), a repairing component (3), a material guiding component (4), a settling component (5), a material discharging component (6) and a supporting component (7); an adjusting component (2) having an adjusting function is arranged on one side of the processing box (1); a repairing component (3) having a repairing function is arranged above the adjusting component (2); a material guiding component (4) having a material guiding function is arranged on the inner side of the processing box (1); a settling component (5) having a settling function is arranged below the processing box (1); a material discharging component (6) having a material discharging function is arranged above the settling component (5); and a supporting component (7) having a supporting function is arranged below the settling component (5).

2. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 1, characterized in that: The adjustment component (2) comprises a motor (201), a threaded rod (202) and a connecting plate (203); the motor (201) is arranged on one side of the processing box (1), the threaded rod (202) is arranged at the output end of the motor (201), the connecting plate (203) is arranged on the outer side of the threaded rod (202), and the connecting plate (203) and the threaded rod (202) are threadedly connected.

3. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 2, characterized in that: The repair component (3) comprises a power source (301), a wire (302) and an electrode plate (303); the power source (301) is arranged above the connecting plate (203), the wire (302) is arranged on one side of the power source (301), and the electrode plate (303) is arranged at one end of the wire (302).

4. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 1, characterized in that: The material guide assembly (4) comprises a filter frame (401), a discharge pipe (402) and a feed pipe (403); the filter frame (401) is arranged on the inner side of the processing box (1), a discharge pipe (402) is arranged below the filter frame (401), the discharge pipe (402) is controlled by an electromagnetic valve, and a feed pipe (403) is arranged above the processing box (1).

5. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 1, characterized in that: The sedimentation assembly (5) comprises a sedimentation tank (501) and a bracket; the sedimentation tank (501) is arranged below the processing box (1), and a first bracket (502) is arranged below the processing box (1), and the first bracket (502) is arranged in multiple groups.

6. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 5, characterized in that: The discharge assembly (6) comprises a fixing frame (601) and a discharge pipe (602); the fixing frame (601) is arranged above the sedimentation tank (501), and the discharge pipe (602) is arranged inside the fixing frame (601).

7. The device for remediating cultivated land soil contaminated by heavy metal cadmium according to claim 5, characterized in that: The support assembly (7) comprises a second bracket (701) and a shock-absorbing pad (702); the second bracket (701) is arranged below the sedimentation tank (501), the second bracket (701) is arranged in multiple groups, and the shock-absorbing pad (702) is arranged below the second bracket (701).

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