Heavy metal contaminated soil in-situ remediation construction device

Abstract

The utility model discloses an in-situ remediation construction device for heavy metal contaminated soil, relates to the technical field of soil remediation, and aims to solve the technical problem that the device is time-consuming and labor-consuming to use due to inconvenience in feeding operation during in-situ remediation of the heavy metal contaminated soil at present. A reaction barrel is fixedly arranged at the top of the movable base, and a soil drilling assembly is fixedly arranged on the outer wall of the reaction barrel. Through the matched design of the soil drilling assembly and the reaction barrel, soil can be directly drilled into the reaction barrel at the position of heavy metal contaminated soil; and the stirring blade structure movably installed on the soil drilling assembly can stir the entering soil, so that the soil and the agent can be fully mixed, the step of collecting and putting the soil into the reaction barrel after the soil is drilled out can be omitted through the structural cooperation, and time and labor are saved. The device has the advantages that drilling and mixing reaction of soil can be performed synchronously, and the soil remediation time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, and more specifically to an in-situ remediation construction device for heavy metal polluted soil. Background Art

[0002] The in-situ remediation construction device for heavy metal contaminated soil is an efficient and environmentally friendly soil remediation technology, which is mainly used to treat soil contaminated by heavy metals to reduce or eliminate the bioavailability and mobility of heavy metals in the soil, and reduce its harm to the ecosystem and human health.

[0003] The existing in-situ remediation construction device for heavy metal contaminated soil usually takes out the contaminated soil and pours it into a reaction barrel to remove the mixed heavy metals through mixing with reagents. This method leads to many operating steps, and it is not convenient to place the extracted contaminated soil in the reaction barrel at one time, which makes the reaction remediation work time-consuming and labor-intensive, affecting the use effect. In view of this, we propose an in-situ remediation construction device for heavy metal contaminated soil. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a heavy metal contaminated soil in-situ remediation construction device to solve the technical problem that the current in-situ remediation of heavy metal contaminated soil is inconvenient to add materials, resulting in time-consuming and labor-intensive use of the device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a heavy metal contaminated soil in-situ remediation construction device, comprising a mobile base composed of a top plate and a retractable frame, a reaction barrel is fixedly arranged on the top of the mobile base, a soil drilling assembly is fixedly arranged on the outer wall of the reaction barrel, and the soil drilling assembly penetrates the reaction barrel, and a plurality of stirring assemblies are movably installed on the outer wall of the soil drilling assembly located inside the reaction barrel;

[0006] The reaction barrel comprises a barrel body and a barrel cover, a downwardly inclined flow guide surface is provided at the bottom of the inner cavity of the barrel body, and a material opening is provided downward in the middle of the flow guide surface, a position limiting tube corresponding to the material opening is fixedly provided at the bottom of the reaction barrel, and the position limiting tube passes through the top plate of the movable base;

[0007] The soil drilling assembly includes a lifting part and a soil drilling part, the soil drilling part includes a driving motor, the output end of the driving motor is equipped with a rotating rod penetrating the barrel cover, the lower end of the rotating rod is fixed with a spiral drill bit, and the lower end of the spiral drill bit is located in a limiting tube.

[0008] The utility model can directly drill the soil into the reaction barrel at the location of the heavy metal contaminated soil through the coordinated design of the soil drilling component and the reaction barrel, and can stir the entered soil with the stirring blade structure movably installed on the soil drilling component, so as to facilitate the full mixing of the soil and the reagent. Such structural coordination can save the step of collecting the soil after drilling it out and putting it into the reaction barrel, thus saving time and labor and improving the effect of the use of the structure.

[0009] Preferably, the stirring assembly comprises a support rod, a vertical plate is fixedly provided at one end of the support rod close to the inner wall of the barrel body, and a plurality of stirring blades are fixedly provided on one side of the vertical plate close to the spiral drill bit.

[0010] Preferably, fixed blocks are fixed at both ends of the vertical plate close to the inner wall of the barrel body, a round rod-shaped scraper rod is rotatably installed between the two fixed blocks, a plurality of arc-shaped convex strips are provided in an annular array outside the rod wall of the scraper rod, and the arc-shaped convex strips are in contact with the inner wall of the barrel body.

[0011] Preferably, a plurality of movable slots are provided on the rod wall of the rotating rod, and the two sides of the movable slots facing each other are beveled sides inclined in opposite directions, and the angles between the beveled sides and the connected sides are arc angles.

[0012] Preferably, a movable clamping block adapted to engage with the movable clamping slot is fixedly provided on the side end of the support rod, and the side surface of the movable clamping block in contact with the movable clamping slot is polished to a smooth surface.

[0013] Preferably, the lifting part includes a support plate connected to the barrel body, two electric push rods are fixedly provided on the top of the support plate, a mounting plate supporting the drive motor is fixedly connected between the telescopic ends of the two electric push rods, and the output end of the drive motor passes through the wall of the mounting plate.

[0014] Preferably, the support frame at the bottom of the movable base is a retractable frame, and the retracted length of the retractable frame is smaller than the length of the limiting tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can directly drill the soil into the reaction barrel at the location of the heavy metal contaminated soil through the coordinated design of the soil drilling component and the reaction barrel, and can stir the entered soil with the stirring blade structure movably installed on the soil drilling component, so as to facilitate the full mixing of the soil and the reagent. Such structural coordination can save the step of collecting the soil after drilling and putting it into the reaction barrel, saving time and labor, and improving the effect of the use of the structure.

[0017] 2. The utility model can also scrape off the soil adhering to the inner wall of the reaction barrel when stirring the soil by designing the cooperation of the fixed block, the scraper rod and the arc-shaped convex strip, further enhancing the uniformity of the mixing of the internal soil and the reagent and improving the effect of heavy metal treatment in the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the local structure of the soil drilling component in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the stirring blade in the utility model;

[0022] Figure 5 It is an enlarged schematic diagram of the structure of part A in the utility model;

[0023] Figure 6 It is an enlarged schematic diagram of the structure of part B in the utility model.

[0024] Explanation of the numbers in the figure: 1. Mobile base; 2. Reaction barrel; 201. Barrel body; 202. Barrel cover; 203. Guide surface; 204. Limiting pipe; 3. Soil drilling assembly; 301. Support plate; 302. Electric push rod; 303. Mounting plate; 304. Driving motor; 305. Rotating rod; 3051. Movable slot; 3052. Bevel; 3053. Arc angle; 306. Spiral drill bit; 4. Stirring assembly; 401. Support rod; 402. Vertical plate; 403. Stirring blade; 404. Fixed block; 405. Scraper rod; 406. Arc convex strip; 407. Movable block. DETAILED DESCRIPTION

[0025] like Figures 1 to 6 As shown, the utility model relates to an in-situ remediation construction device for heavy metal contaminated soil, comprising a mobile base 1 composed of a top plate and a retractable frame, a reaction barrel 2 is fixedly provided on the top of the mobile base 1, a soil drilling component 3 is fixedly provided on the outer wall of the reaction barrel 2, and the soil drilling component 3 penetrates the reaction barrel 2, and a plurality of stirring components 4 are movably installed on the outer wall of the soil drilling component 3 located inside the reaction barrel 2; the soil drilling component 3 can move downward from the inside of the reaction barrel 2 when working, and can drive the stirring component 4 to rotate when working.

[0026] The reaction barrel 2 includes a barrel body 201 and a barrel cover 202. A downwardly inclined guide surface 203 is provided at the bottom of the inner cavity of the barrel body 201, and a material port is provided downwardly in the middle of the guide surface 203. A limiting tube 204 corresponding to the material port is fixedly provided at the bottom of the reaction barrel 2, and the limiting tube 204 passes through the top plate of the movable base 1. By arranging the guide surface 203 in the reaction barrel 2, the soil can be easily gathered toward the material port position, which is convenient for material discharge. The setting of the limiting tube 204 can extend the depth of the material port.

[0027] The soil drilling component 3 includes a lifting part and a soil drilling part. The soil drilling part includes a driving motor 304. A rotating rod 305 that penetrates the barrel cover 202 is installed at the output end of the driving motor 304. A spiral drill bit 306 is fixedly provided at the lower end of the rotating rod 305, and the lower end of the spiral drill bit 306 is located in the limiting tube 204. The setting of the lifting part can drive the soil drilling part to move downward, so that the spiral drill bit 306 can be drilled into the soil by rotation. At the same time, the soil can be squeezed out with the cooperation of the spiral blades. The squeezed soil can remain in an upward state under the limitation of the limiting tube 204, so that it can enter the interior of the reaction barrel 2 through the material port, thereby achieving the effect of automatic collection.

[0028] In an embodiment of the utility model, the stirring assembly 4 includes a support rod 401, a vertical plate 402 is fixedly provided at one end of the support rod 401 close to the inner wall of the barrel body 201, and a plurality of stirring blades 403 are fixedly provided on the side of the vertical plate 402 close to the spiral drill bit 306; the setting of the plurality of stirring blades 403 can improve the stirring uniformity, and at the same time, the design of the horizontal and vertical sharp edges of the stirring blades 403 can play a cutting and crushing role when contacting with the soil, so that small particles of soil are more easily contacted with the agent, thereby improving the reaction effect.

[0029] In an embodiment of the utility model, fixed blocks 404 are fixed at both ends of the vertical plate 402 close to the inner wall of the barrel body 201, and a round rod-shaped scraper rod 405 is rotatably installed between the two fixed blocks 404. The scraper rod 405 has a plurality of arc-shaped convex strips 406 in an annular array outside the rod wall, and the arc-shaped convex strips 406 are in contact with the inner wall of the barrel body 201; the rotatably installed scraper rod 405 can reduce friction resistance when contacting the inner wall of the reaction barrel 2, and the design of a plurality of arc-shaped convex strips 406 can reduce the contact range, while also increasing the contact strength with the inner wall of the reaction barrel 2, further enhancing the effect of cleaning the soil adhering to the inner wall.

[0030] In an embodiment of the utility model, a plurality of movable slots 3051 are provided on the rod wall of the rotating rod 305, and the two opposite sides of the movable slots 3051 are beveled sides 3052 inclined in opposite directions, and the angles between the beveled sides 3052 and the connected sides are arc angles 3053; the beveled sides 3052 inclined in opposite directions can form an inner angle, and the inner angle is an arc angle 3053, which can expand the contact surface.

[0031] In an embodiment of the utility model, a movable block 407 which is adapted to be combined with the movable slot 3051 is fixedly provided on the side end of the support rod 401, and the side surface where the movable block 407 and the movable slot 3051 are in contact is polished to a smooth surface; the combination of the movable block 407 and the movable slot 3051 can achieve a locking effect, so that the rotating rod 305 can keep the position of the support rod 401 stable when moving downward.

[0032] In an embodiment of the utility model, the lifting part includes a support plate 301 connected to the barrel body 201, and two electric push rods 302 are fixedly provided on the top of the support plate 301. A mounting plate 303 supporting a drive motor 304 is fixedly connected between the telescopic ends of the two electric push rods 302, and the output end of the drive motor 304 passes through the wall of the mounting plate 303; the drilling part can be controlled to move up and down through the coordination, so as to adjust the drilling depth, and when the lifting part stops working, the drilling part can be made to rotate in situ, which is convenient for the internal stirring component 4 to stir the soil, and also convenient for material unloading.

[0033] In an embodiment of the utility model, the support frame at the bottom of the mobile base 1 is a retractable frame, and the retracted length of the retractable frame is less than the length of the limiting tube 204; through the liftable structure setting, the limiting tube 204 can be raised during normal movement, and the limiting tube 204 can be moved down to the ground position when drilling the soil without affecting the operation.

[0034] Working principle: This embodiment provides an in-situ remediation construction device for heavy metal contaminated soil. When in use, first move the entire device to the position where the soil needs to be remediated, then lower the entire device height by moving the telescopic frame structure on the base 1, so that the limit tube 204 at the bottom of the reaction barrel 2 contacts the soil surface, then start the soil drilling component 3, and the spiral drill bit 306 can be rotated and moved downward by the simultaneous operation of the lifting part and the soil drilling part, so that it can drill into the soil. While drilling, the drilled soil can be moved upward by the action of the spiral blades, and the soil can be spirally moved upward to the inside of the barrel body 201 by the limiting position of the limit tube 204. After entering, the agent can be added into the barrel through the position of the barrel cover 202, and the stirring components 4 can be rotated under the action of the rotation of the plurality of stirring components 4. The soil and the agent can be mixed and stirred. When the soil drilling position is reached, the lifting part can be stopped so that the spiral drill bit 306 keeps rotating, so that the internal stirring component 4 can continue to stir and mix the soil. After the heavy metals in the soil are treated, the soil drilling part can be controlled to flip so that the internal soil moves down along the spiral blades, so that it can fall into the drill hole from the lower end of the spiral drill bit 306, achieving the effect of returning to the original position. At the same time, the stirring component 4 can also scrape off the soil adhering to the inner wall of the reaction barrel 2 when reversing, so as to achieve the effect of cleaning. The coordination of the overall structure can facilitate the in-situ soil treatment and restoration work, eliminating the step of collecting and introducing into the reaction barrel 2, saving time and effort, and improving the effect of structural use.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A heavy metal contaminated soil in-situ remediation construction device, characterized in that: It comprises a mobile base (1) composed of a top plate and a retractable frame, a reaction barrel (2) is fixedly provided on the top of the mobile base (1), a soil drilling component (3) is fixedly provided on the outer wall of the reaction barrel (2), and the soil drilling component (3) penetrates the reaction barrel (2), and a plurality of stirring components (4) are movably installed on the outer wall of the soil drilling component (3) located inside the reaction barrel (2); The reaction barrel (2) comprises a barrel body (201) and a barrel cover (202); a downwardly inclined flow guide surface (203) is provided at the bottom of the inner cavity of the barrel body (201); a material opening is provided downwardly in the middle of the flow guide surface (203); a position limiting tube (204) corresponding to the material opening is fixedly provided at the bottom of the reaction barrel (2); and the position limiting tube (204) passes through the top plate of the movable base (1); The soil drilling assembly (3) comprises a lifting part and a soil drilling part, the soil drilling part comprises a driving motor (304), a rotating rod (305) penetrating the barrel cover (202) is installed at the output end of the driving motor (304), a spiral drill bit (306) is fixed at the lower end of the rotating rod (305), and the lower end of the spiral drill bit (306) is located in the limiting tube (204).

2. The heavy metal contaminated soil in-situ remediation construction device according to claim 1 is characterized in that: The stirring assembly (4) comprises a support rod (401), a vertical plate (402) being fixedly provided at one end of the support rod (401) close to the inner wall of the barrel body (201), and a plurality of stirring blades (403) being fixedly provided at one side of the vertical plate (402) close to the spiral drill bit (306).

3. The heavy metal contaminated soil in-situ remediation construction device according to claim 2 is characterized in that: Fixed blocks (404) are fixedly provided at both ends of the vertical plate (402) close to the inner wall of the barrel body (201), and a round rod-shaped scraper rod (405) is rotatably installed between the two fixed blocks (404). A plurality of arc-shaped convex strips (406) are provided in an annular array outside the rod wall of the scraper rod (405), and the arc-shaped convex strips (406) are in contact with the inner wall of the barrel body (201).

4. The heavy metal contaminated soil in-situ remediation construction device according to claim 2 is characterized in that: A plurality of movable slots (3051) are provided on the rod wall of the rotating rod (305), and the two sides of the movable slots (3051) facing each other are oblique edges (3052) inclined in opposite directions, and the angles between the oblique edges (3052) and the connected edges on both sides are arc angles (3053).

5. The heavy metal contaminated soil in-situ remediation construction device according to claim 4 is characterized in that: An active clamping block (407) adapted to be combined with the active clamping slot (3051) is fixedly provided at the side end of the support rod (401), and the side surface of the active clamping block (407) that is in contact with the active clamping slot (3051) is polished to a smooth surface.

6. The heavy metal contaminated soil in-situ remediation construction device according to claim 1 is characterized in that: The lifting part comprises a support plate (301) connected to the barrel body (201), two electric push rods (302) are fixedly provided on the top of the support plate (301), a mounting plate (303) supporting a driving motor (304) is fixedly connected between the telescopic ends of the two electric push rods (302), and the output end of the driving motor (304) passes through the wall of the mounting plate (303).

7. The heavy metal contaminated soil in-situ remediation construction device according to claim 1 is characterized in that: The support frame at the bottom of the mobile base (1) is a retractable frame, and the retracted length of the retractable frame is less than the length of the limiting tube (204).

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