Soil heavy metal remediation equipment

Abstract

The utility model discloses soil heavy metal remediation equipment, which relates to the technical field of soil remediation and comprises a liquefaction box, a cover plate mounted at the top end of the liquefaction box, an ultrasonic generator fixedly mounted in a guide rod, a chemical feeding pipe and a water conveying pipe arranged on the outer side of the liquefaction box, and a chemical feeding hole formed in the bottom of the chemical feeding pipe. A chemical adding pipe is arranged in the chemical box, a water conveying pipe is arranged in the chemical adding pipe, a water conveying hole is formed in the bottom of the water conveying pipe, a chemical adding pump is arranged at the end, away from the chemical adding hole, of the chemical adding pipe, cyclodextrin-biological enzyme is arranged in the chemical box, and a spraying mechanism is arranged in the liquefying box. The method comprises the steps that firstly, colloid is prepared, then an ultrasonic generator works to evenly mix the colloid and water, nanoscale colloid is generated, oxygen-containing groups of cyclodextrin and heavy metal ions in soil can form stable covalent bonds, heavy metal in the soil is effectively removed, and the method is easy to operate, low in cost, environmentally friendly and suitable for large-scale soil heavy metal remediation engineering.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, and specifically relates to a soil heavy metal remediation device. Background Technique

[0002] Since heavy metals cannot be decomposed by soil microorganisms and are prone to accumulate and transform into more toxic methyl compounds, and even some accumulate in the human body at harmful concentrations through the food chain, seriously endangering human health.

[0003] A soil heavy metal remediation device is a device used to perform relevant treatments on soil areas contaminated by heavy metals to prevent people from eating the planted crops carrying heavy metals in the soil area and causing damage to the bodies of consumers. It has been widely used in the field of environmental protection. However, the existing soil heavy metal remediation devices have a relatively high cost for soil remediation.

[0004] In order to solve the above problems, we made improvements and proposed a soil heavy metal remediation device. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a soil heavy metal remediation device, including a liquefaction tank. A cover plate is installed at the top end of the liquefaction tank. A guide rod is fixedly installed in the middle of the cover plate. An ultrasonic generator is fixedly installed inside the guide rod, and the bottom of the ultrasonic generator is arranged inside the liquefaction tank. A medicine adding pipe and a water conveying pipe are arranged on the outside of the liquefaction tank. A medicine adding hole is arranged at the bottom of the medicine adding pipe, and the medicine adding hole is arranged inside the liquefaction tank. A water conveying hole is arranged at the bottom of the water conveying pipe, and the water conveying hole is arranged inside the liquefaction tank. One end of the water conveying pipe far away from the water conveying hole is connected to a water source. A medicine adding pump is arranged at one end of the medicine adding pipe far away from the medicine adding hole. The medicine adding pump is arranged in a medicine box. Cyclodextrin-bioenzyme is arranged in the medicine box. A spraying mechanism is arranged inside the liquefaction tank.

[0007] As a preferred technical solution of the utility model, the spraying mechanism includes a transmission pipe, and the transmission pipe is arranged inside the liquefaction tank. A spray head is fixedly connected to the top end of the transmission pipe, and the spray head is arranged outside the cover plate. A water pump is arranged at the bottom of the transmission pipe.

[0008] As a preferred technical solution of the utility model, a plurality of chambers are opened at the bottom end of the cover plate, and fillers are arranged inside the chambers.

[0009] As a preferred technical solution of the utility model, an ultrasonic vibration plate is arranged on the outside of the part of the ultrasonic generator arranged in the liquefaction tank, and the material of the ultrasonic vibration plate is SS.

[0010] As a preferred technical solution of the present utility model, a plurality of rollers are fixedly installed at the bottom end of the liquefaction tank, and a spring shock absorption mechanism is arranged inside the rollers.

[0011] As a preferred technical solution of the present utility model, the filler is one of cotton or heat insulating cotton.

[0012] The beneficial effects of the present utility model are as follows: Cyclodextrin-bioenzyme and water are respectively injected into the interior of the liquefaction tank through a chemical addition pipe and a water delivery pipe, and then the ultrasonic generator works to mix the colloid and water evenly, and generate a colloid at the nanometer level, improving the surface area of the cyclodextrin-enzyme colloid, thereby enhancing its adsorption capacity for heavy metals in the soil. The oxygen-containing groups of cyclodextrin can form stable covalent bonds with heavy metal ions in the soil, effectively removing heavy metals in the soil. The technical operation of the present invention is simple, the cost is low, and it is environmentally friendly, and is applicable to large-scale soil heavy metal remediation projects. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic diagram of the present utility model;

[0015] In the figure: 1, liquefaction tank; 2, cover plate; 3, chamber; 4, filler; 5, ultrasonic generator; 6, guide rod; 7, ultrasonic vibration plate; 8, transfer pipe; 9, nozzle; 10, roller; 11, chemical addition pipe; 12, chemical addition hole; 13, water delivery pipe; 14, water delivery hole. Detailed Embodiments

[0016] The following describes the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0017] Embodiment: As Figure 1As shown in the figure, a soil heavy metal remediation device includes a liquefaction tank 1 made of SS304. A cover plate 2 is installed at the top of the liquefaction tank 1. A guide rod 6 is fixedly installed in the middle of the cover plate 2. An ultrasonic generator 5 is fixedly installed inside the guide rod 6, and the bottom of the ultrasonic generator 5 is arranged inside the liquefaction tank 1. An ultrasonic vibration plate 7 is arranged on the outside of the part of the ultrasonic generator 5 arranged in the liquefaction tank 1. The ultrasonic vibration plate 7 is made of SS304. A medicine adding pipe 11 and a water delivery pipe 13 are arranged on the outside of the liquefaction tank 1. A medicine adding hole 12 is arranged at the bottom of the medicine adding pipe 11, and the medicine adding hole 12 is arranged inside the liquefaction tank 1. A water delivery hole 14 is arranged at the bottom of the water delivery pipe 13, and the water delivery hole 14 is arranged inside the liquefaction tank 1. One end of the water delivery pipe 13 far away from the water delivery hole 14 is connected to a water source. A medicine adding pump is arranged at one end of the medicine adding pipe 11 far away from the medicine adding hole 12. The medicine adding pump is arranged in a medicine box, and cyclodextrin-bioenzyme is arranged in the medicine box. A spraying mechanism is arranged inside the liquefaction tank 1;

[0018] Cyclodextrin-bioenzyme and water are respectively injected into the liquefaction tank 1 through the medicine adding pipe 11 and the water delivery pipe 13. Then the ultrasonic generator 5 works to mix the colloid and water evenly and generate a nano-level colloid, improving the surface area of the cyclodextrin-enzyme colloid, thereby enhancing its adsorption capacity for soil heavy metals. The spraying mechanism sprays the evenly mixed cyclodextrin-enzyme colloid onto the heavy metal soil. The oxygen-containing groups of cyclodextrin can form stable covalent bonds with heavy metal ions in the soil, effectively removing heavy metals in the soil. The technical operation of the present invention is simple, the cost is low, and it is environmentally friendly, and is suitable for large-scale soil heavy metal remediation projects.

[0019] Specifically, as Figure 1 shown, the spraying mechanism includes a transmission pipe 8 arranged inside the liquefaction tank 1. The top of the transmission pipe 8 is fixedly connected with a spray head 9, and the spray head 9 is arranged outside the cover plate 2. A water pump is arranged at the bottom of the transmission pipe 8. The transmission pipe 8 is made of PPR. The water pump transfers the evenly mixed cyclodextrin-enzyme colloid to the spray head 9 through the transmission pipe 8, and the spray head 9 sprays the cyclodextrin-enzyme colloid solution.

[0020] Specifically, as Figure 1 shown, a plurality of chambers 3 are opened at the bottom end of the cover plate 2. Fillers 4 are arranged inside the chambers 3. The fillers 4 are one of cotton or heat insulation cotton, which insulates the reactor, and the top fillers 4 and the cover plate 2 are detachable.

[0021] Specifically, as Figure 1 shown, a plurality of rollers 10 are fixedly installed at the bottom end of the liquefaction tank 1, and a spring shock absorption mechanism is arranged inside the rollers 10. The device can be carried through the rollers 10 more labor-savingly, and the spring shock absorption mechanism plays a shock absorption effect to protect the device.

[0022] Working principle: Cyclodextrin-bioenzyme and water are respectively injected into the interior of the liquefaction tank 1 through the chemical dosing pipe 11 and the water delivery pipe 13. Then, the ultrasonic generator 5 works, and appropriate ultrasonic waves are emitted through the ultrasonic vibration plate 7 to uniformly mix the colloid and water, and generate nanoscale colloid, which improves the surface area of the cyclodextrin-enzyme colloid and increases the contact area with the soil, thereby enhancing its adsorption capacity for heavy metals in the soil. The water pump transfers the uniformly mixed cyclodextrin-enzyme colloid to the nozzle 9 through the transfer pipe 8, and the nozzle 9 sprays the cyclodextrin-enzyme colloid solution, spraying the uniformly mixed cyclodextrin-enzyme colloid onto the heavy metal soil. The oxygen-containing groups of cyclodextrin can form stable covalent bonds with heavy metal ions in the soil, effectively removing heavy metals from the soil. The technology of the present invention is simple to operate, low in cost, and environmentally friendly, and is suitable for large-scale soil heavy metal remediation projects.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A soil heavy metal remediation device, comprising a liquefaction tank (1), characterized in that: The top of the liquefied tank (1) is provided with a cover plate (2), the middle of the cover plate (2) is fixedly provided with a guide rod (6), the interior of the guide rod (6) is fixedly provided with an ultrasonic generator (5), and the bottom of the ultrasonic generator (5) is arranged inside the liquefied tank (1), the outside of the liquefied tank (1) is provided with a dosing pipe (11) and a water delivery pipe (13), the bottom of the dosing pipe (11) is provided with a dosing hole (12), and the dosing hole (12) is arranged at Inside the liquefied tank (1), a water delivery hole (14) is provided at the bottom of the water delivery pipe (13), and the water delivery hole (14) is provided inside the liquefied tank (1), one end of the water delivery pipe (13) away from the water delivery hole (14) is connected to a water source, one end of the dosing pipe (11) away from the dosing hole (12) is provided with a dosing pump, and the dosing pump is provided in the medicine box, and cyclodextrin-biological enzyme is provided in the medicine box, and a spraying mechanism is provided inside the liquefied tank (1).

2. A soil heavy metal remediation device according to claim 1, characterized in that: The spraying mechanism comprises a transmission pipe (8), and the transmission pipe (8) is arranged inside the liquefied tank (1), the top end of the transmission pipe (8) is fixedly connected to a nozzle (9), and the nozzle (9) is arranged on the outside of the cover plate (2), and a water pump is arranged at the bottom of the transmission pipe (8).

3. A soil heavy metal remediation device according to claim 1, characterized in that: A plurality of chambers (3) are provided at the bottom end of the cover plate (2), and fillers (4) are provided inside the chambers (3).

4. A soil heavy metal remediation device according to claim 1, characterized in that: An ultrasonic vibration plate (7) is arranged on the outside of the part of the ultrasonic generator (5) arranged on the liquefied tank (1), and the material of the ultrasonic vibration plate (7) is SS304.

5. The soil heavy metal remediation equipment according to claim 1, characterized in that: A plurality of rollers (10) are fixedly mounted on the bottom end of the liquefaction tank (1), and a spring shock absorbing mechanism is arranged inside the rollers (10).

6. The soil heavy metal remediation equipment according to claim 3, characterized in that: The filler (4) is one of cotton and heat-insulating cotton.

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