A mine heavy metal contaminated soil remediation device and a remediation method thereof

Abstract

The present application relates to the technical fields of contaminated soil remediation, and particularly relates to a mine heavy metal contaminated soil remediation device and a remediation method thereof, which comprises a platform plate, a spraying mechanism is installed on the top of the platform plate, the spraying mechanism comprises extrusion boxes, the extrusion boxes are fixedly installed on the top of the platform plate, the extrusion boxes are provided with two, a communication pipe is fixedly installed on the top of each of the two extrusion boxes, a liquid storage tank is fixedly installed on the top of the communication pipe, a top cover is formed in the top of the liquid storage tank, a first driven wheel is rotatably installed on the side of the liquid storage tank, and a double-shaft motor is fixedly installed on the top of the platform plate. Through the arrangement of the spraying mechanism, the soil remediation liquid can be stirred, the stirring can ensure that various components in the remediation liquid are fully mixed, the composition of the remediation liquid is uniform and consistent, the application effect is effectively improved, various components in the remediation liquid are uniformly dispersed, precipitation or separation is prevented, and the stability and durability of the remediation liquid are improved.

Description

Technical Field

[0001] This invention relates to the field of contaminated soil remediation technology, specifically to a device and method for remediating heavy metal contaminated soil in mines. Background Technology

[0002] Mineral resources are among the most fundamental resources for human production and daily life. Mines are rich in a wide variety of heavy metal resources, with extensive distribution and abundant reserves. While the development of heavy metal resources in mines has created enormous material wealth, unreasonable mining has led to a series of severe environmental pollution problems. Mining causes various types of heavy metal pollution; the mining, beneficiation, and smelting processes in metal mines all release heavy metal elements into the environment. For example, waste sulfides generated during the mining of primary sulfide deposits, through long-term natural oxidation and rainwater leaching, allow heavy metal elements to enter the mining area. In addition, the weathering of solid waste can also lead to the leaching of heavy metals into the rock, especially in lead-zinc mines. During the mining and utilization process, lead, zinc, arsenic, and associated components such as chromium, copper, etc., in the surrounding rocks and tailings enter the soil and accumulate under the leaching of rainwater.

[0003] Mixing heavy metal remediation agents with water to form a heavy metal remediation solution, and then applying the solution to the soil, is one of the commonly used methods for remediating heavy metal-contaminated mine soils. However, existing remediation devices have poor diffusion effects and a small spraying range when applying the heavy metal remediation solution. A small spraying range means that the device cannot cover all parts of the mine soil remediation area, resulting in an incomplete remediation effect and a small effective range of the heavy metal remediation solution, thus affecting the remediation effect. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a mine heavy metal contaminated soil remediation device and method that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a device and method for remediating heavy metal contaminated soil in mines, comprising a platform plate, on the top of which is installed a spraying mechanism, the spraying mechanism comprising:

[0007] An extrusion box is fixedly installed on the top of the platform plate. Two extrusion boxes are provided, and a connecting pipe is fixedly installed on the top of each of the two extrusion boxes.

[0008] A liquid storage tank is fixedly installed on the top of a connecting pipe. The top of the liquid storage tank is provided with a top cover, and a first driven wheel is rotatably installed on the side of the liquid storage tank.

[0009] A double-shaft motor is fixedly installed on the top of the platform plate, an output end of the double-shaft motor is fixedly installed with a first driving wheel, a side of the extrusion box is rotatably installed with a first double-groove pulley, and the first driving wheel and the first driven wheel are both connected with the first double-groove pulley through a belt.

[0010] A plurality of spray pipes are fixedly installed on the bottom of the platform plate, and the inside of each of the plurality of spray pipes is slidably installed with a piston plate.

[0011] In an embodiment of the present application, the inside of the liquid storage tank is rotatably installed with a first rotating shaft, the right first rotating shaft is fixedly connected with the first driven wheel, the surface of the two first rotating shafts is fixedly installed with a connecting rod, the connecting rod is provided with a plurality of connecting rods, the end of each of the plurality of connecting rods is fixedly installed with a stirring plate, the end of the two first rotating shafts is fixedly installed with a connecting terminal, the end of the left connecting terminal is provided with a clamping groove, the end of the right connecting terminal is fixedly installed with a clamping block, and the clamping groove is engaged with the clamping block.

[0012] In an embodiment of the present application, the surface of the connecting terminal is fixedly installed with a fixing rod, the fixing rod is provided with a plurality of fixing rods, the end of each of the plurality of fixing rods is fixedly installed with a gear ring, the inner cavity of the liquid storage tank is fixedly installed with a first sliding groove, the inside of the first sliding groove is slidably installed with an inner ring gear, the gear ring is engaged with the inner ring gear, and the two sides of the inner ring gear are fixedly installed with a plurality of scraping strips.

[0013] In an embodiment of the present application, the inside of each of the two extrusion boxes is installed with an extrusion mechanism, the extrusion mechanism comprises a second rotating shaft, the second rotating shaft is rotatably installed in the inside of the communication pipe, the second rotating shaft penetrates to the outside of the communication pipe, the surface of the second rotating shaft is fixedly installed with a fan blade, the end of the second rotating shaft is fixedly installed with a mounting disc, the side of the mounting disc is fixedly installed with a second double-groove pulley, the top of each of the two extrusion boxes is fixedly installed with a mounting seat, the mounting seat is provided with two mounting seats, the side of each of the two mounting seats is rotatably installed with a second driven wheel, and the second driven wheel is connected with the second double-groove pulley through a belt.

[0014] In an embodiment of the present application, eccentric rotating plates are installed on the eccentric of the second driven wheel, third connecting plates are installed on the side of the rotating plate, piston rods are installed on the end of the third connecting plate, the piston rod penetrates into the inside of the extrusion box and is in sliding connection with the extrusion box, the end of the piston rod is fixedly installed with an activity plate, a connecting column is fixedly installed on the bottom of the activity plate, a plurality of connecting columns are arranged, the end of the connecting column is fixedly connected with the piston plate, a limiting rod is fixedly installed on the top of the activity plate, the limiting rod penetrates into the top of the extrusion box and is in sliding connection with the extrusion box.

[0015] In an embodiment of the present application, a power mechanism is installed on the bottom of the platform plate, the power mechanism comprises side plates, the side plates are fixedly installed on the bottom of the platform plate, the side plates are provided with two, a shaft is rotatably installed between the two side plates, a third driven wheel is fixedly installed on the surface of the shaft, the other output end of the double-shaft motor is fixedly installed with a second driving wheel, the second driving wheel is connected with the third driven wheel through a belt, a power wheel is rotatably installed on the side of the two side plates, and the power wheel is fixedly connected with the shaft.

[0016] In an embodiment of the present application, mounting plates are fixedly installed on the side of the platform plate, the mounting plates are provided with two, a second sliding groove is formed on the surface of the two mounting plates, the second sliding groove is provided with two, a sliding block is slidably installed in the second sliding groove, a third rotating shaft is rotatably installed on the side of the front sliding block, a fourth driven wheel is fixedly installed on the surface of the third rotating shaft, a third driving wheel is fixedly installed on the surface of the shaft, the third driving wheel is connected with the fourth driven wheel through a belt, rotary ploughs are fixedly installed on the surface of the third rotating shaft.

[0017] In an embodiment of the present application, a battery pack is fixedly installed on the top of the platform plate, a second motor is fixedly installed on the top of the platform plate, a first bevel gear is fixedly installed on the end of the second motor, a bottom plate is fixedly installed on the side of the rear sliding block, a rotating column is rotatably installed on the top of the bottom plate, a protrusion is fixedly installed on the surface of the rotating column, a rotating cylinder is rotatably installed in the inside of the platform plate, a through groove is formed on the surface of the rotating cylinder, the protrusion is engaged with the through groove, a third double-groove belt pulley is fixedly installed on the surface of the rotating column, installation grooves are formed on the side of the bottom plate, the installation grooves are provided with two, saw plates are slidably installed in the installation grooves.

[0018] In one embodiment of the present application, the top of the bottom plate is rotatably mounted with a fifth driven wheel, the fifth driven wheel is provided with two, two third double-groove pulley connecting wheels are connected, the top of the two fifth driven wheels is fixedly mounted with a circular plate, the eccentric part of the circular plate is rotatably mounted with a first connecting plate, the bottom of the first connecting plate is rotatably mounted with a second connecting plate, the end of the second connecting plate is fixedly mounted with a support plate, the end of the two saw plates is fixedly mounted with a sliding shaft, the support plate is fixedly connected with the sliding shaft, the bottom of the platform plate is fixedly mounted with a damping rod, the bottom of the damping rod is fixedly mounted with an auxiliary wheel, the surface of the damping rod is sleeved with a spring, the spring is arranged between the auxiliary wheel and the platform plate, the top of the rotating cylinder is fixedly mounted with a second bevel gear, the bottom of the platform plate is rotatably mounted with a cleaning plate, the top of the platform plate is rotatably mounted with a fifth driving wheel, the bottom of the second bevel gear is fixedly mounted with a sixth driven wheel, the fifth driving wheel is connected with the sixth driven wheel through a belt, and the fifth driving wheel is fixedly connected with the cleaning plate.

[0019] A mine heavy metal contaminated soil remediation method is suitable for any one of the mine heavy metal contaminated soil remediation devices, and steps are as follows:

[0020] S1: First, the contaminated soil needs to be evaluated to determine the types, contents and distribution of heavy metals, and the degree of pollution. This can be realized by collecting samples for testing and analysis;

[0021] S2: The entire device is pushed to the ground that needs to be repaired, and the contaminated source is removed, which is the first step to repair the soil, which may include removing pollutants, waste and contaminated vegetation, etc.;

[0022] S3: The properties of the soil are improved by the soil remediation liquid to reduce the availability and bioavailability of heavy metals;

[0023] S4: Plants such as acacia and reduced sedge are planted in heavy metal contaminated soil, and the absorption and enrichment capacity of plants is used to reduce the content of heavy metals in the soil;

[0024] S5: The repair effect is monitored regularly to ensure the effectiveness of the repair measures, and the repair scheme is adjusted if necessary.

[0025] The mine heavy metal contaminated soil remediation device and the remediation method thereof have the following beneficial effects:

[0026] 1. Through the setting of the spraying mechanism, the soil remediation liquid can be stirred, the stirring can ensure that the various components in the remediation liquid are fully mixed, the composition of the remediation liquid is uniform and consistent, the application effect is effectively improved, the various components in the remediation liquid are uniformly dispersed, precipitation or separation is prevented, and the stability and durability of the remediation liquid are improved.

[0027] 2. Through the setting of the extrusion mechanism, the soil remediation liquid can be extruded, so that the spraying range of the soil remediation liquid is wider, the larger spraying range can cover more contaminated soil areas, improve the remediation efficiency, save time and cost, the larger spraying range can reduce the remediation cost to a certain extent, especially in large-area contaminated soil remediation projects, resources and expenses are saved.

[0028] 3. Through the setting of the power mechanism, the whole device can realize automatic walking and soil turning treatment on the ground, the soil turning can improve the air permeability of the soil, increase the soil porosity, be beneficial to the growth and activity of microorganisms in the soil, speed up the decomposition of organic matter and the transformation of heavy metals, the soil turning can scatter soil particles, reduce the soil compactness, be beneficial to the penetration and distribution of water and nutrients, and improve the soil fertility and adsorption. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0030] Figure 1 is the overall structure schematic diagram provided by the embodiments of the present application;

[0031] Figure 2 is the overall left view structure schematic diagram provided by the embodiments of the present application;

[0032] Figure 3 is the overall bottom view structure schematic diagram provided by the embodiments of the present application;

[0033] Figure 4 is the overall structure schematic diagram of the extrusion box provided by the embodiments of the present application;

[0034] Figure 5 is the front view cross-sectional structure schematic diagram of the extrusion box provided by the embodiments of the present application;

[0035] Figure 6 is the front view cross-sectional structure schematic diagram of the liquid storage tank provided by the embodiments of the present application;

[0036] Figure 7 is the internal structure schematic diagram of the liquid storage tank provided by the embodiments of the present application;

[0037] Figure 8 is the bottom structure schematic diagram of the platform plate provided by the embodiments of the present application.

[0038] In the figure: 1, platform plate; 2, spraying mechanism; 201, extrusion box; 202, communication pipe; 203, liquid storage tank; 204, top cover; 205, first driven wheel; 206, double-shaft motor; 207, first driving wheel; 208, first double-groove pulley; 209, spraying pipe; 210, piston plate; 211, first rotating shaft; 212, connecting rod; 213, stirring plate; 214, connecting terminal; 215, clamping groove; 216, clamping block; 217, fixing rod; 218, gear ring; 219, first sliding groove; 220, inner ring tooth; 221, scraping strip; 3, extrusion mechanism; 301, second rotating shaft; 302, fan blade; 303, mounting disc; 304, second double-groove pulley; 305, mounting seat; 306, second driven wheel; 307, rotating plate; 308, third connecting plate; 309, piston rod; 310, movable plate; 311, connecting column; 312, limiting rod; 4, power mechanism; 401, side plate; 402, axle; 403, third driven wheel; 404, second driving wheel; 405, mounting plate; 406, second sliding groove; 407, sliding block; 408, third rotating shaft; 409, fourth driven wheel; 410, third driving wheel; 411, rotary tiller; 412, battery pack; 413, second motor; 414, first bevel gear; 415, bottom plate; 416, rotating column; 417, protruding block; 418, rotating cylinder; 419, through groove; 420, third double-groove pulley; 421, mounting groove; 422, sawing plate; 423, fifth driven wheel; 424, circular plate; 425, first connecting plate; 426, second connecting plate; 427, support plate; 428, fifth driving wheel; 429, sixth driven wheel; 430, power wheel; 431, sliding shaft; 432, damping rod; 433, auxiliary wheel; 434, spring; 435, second bevel gear; 436, cleaning plate. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0040] REFERENCE Figures 1-8The technical scheme provides a mine heavy metal contaminated soil remediation device and a remediation method thereof, and specifically comprises a platform plate 1, a spraying mechanism 2 is installed on the top of the platform plate 1, the spraying mechanism 2 comprises an extrusion box 201, a liquid storage tank 203, a double-shaft motor 206 and a spraying pipe 209, the extrusion box 201 is fixedly installed on the top of the platform plate 1, the extrusion box 201 can extrude the soil remediation liquid, so that the pressure of the soil remediation liquid is increased, the soil remediation liquid spraying range is wider, the top of the two extrusion boxes 201 is fixedly installed with a communication pipe 202, the liquid storage tank 203 is fixedly installed on the top of the communication pipe 202, the soil remediation liquid in the liquid storage tank 203 can enter the inside of the extrusion box 201 through the communication pipe 202, the top of the liquid storage tank 203 is provided with a top cover 204, the soil remediation liquid can be put into the inside of the liquid storage tank 203 through the top cover 204, a first driven wheel 205 is rotatably installed on the side of the liquid storage tank 203, the double-shaft motor 206 is fixedly installed on the top of the platform plate 1, the output end of the double-shaft motor 206 is fixedly installed with a first driving wheel 207, a first double-groove belt pulley 208 is rotatably installed on the side of the extrusion box 201, the first driven wheel 205 and the first driving wheel 207 are connected with the first double-groove belt pulley 208 through a belt, the double-shaft motor 206 can drive the first driving wheel 207 to rotate, the rotating first driving wheel 207 can drive the first double-groove belt pulley 208 to rotate, and then the first driven wheel 205 can be driven to rotate, the spraying pipe 209 is fixedly installed on the bottom of the platform plate 1, a plurality of spraying pipes 209 are arranged, the spraying pipe 209 can spray the soil remediation liquid to the surface of the contaminated soil, a piston plate 210 is slidably installed in the plurality of spraying pipes 209, a first rotating shaft 211 is rotatably installed in the inside of the liquid storage tank 203, the first rotating shaft 211 is provided with two parts, the right part of the first rotating shaft 211 is fixedly connected with the first driven wheel 205, the surface of the two first rotating shafts 211 is fixedly installed with a connecting rod 212, the connecting rod 212 is provided with a plurality of parts, the end of the plurality of connecting rods 212 is fixedly installed with a stirring plate 213, the double-shaft motor 206 can drive the first driving wheel 207 to rotate, and then the first rotating shaft 211 can be driven to rotate, the rotation of the first rotating shaft 211 can drive the connecting rod 212 to rotate, the rotating connecting rod 212 can drive the stirring plate 213 to rotate, and then the soil remediation liquid can be stirred, the deposition phenomenon of the soil remediation liquid after long-time placement is prevented, the end of the two first rotating shafts 211 is fixedly installed with a connecting terminal 214, the end of the left connecting terminal 214 is provided with a clamping groove 215, the end of the right connecting terminal 214 is fixedly installed with a clamping block 216, the clamping groove 215 is engaged with the clamping block 216, through the arrangement of the clamping block 216 and the clamping groove 215, the left first rotating shaft 211 can drive the right first rotating shaft 211 to rotate, the surface of the connecting terminal 214 is fixedly installed with a fixing rod 217,The fixed rods 217 are provided with multiple, the end of multiple fixed rods 217 is fixedly installed with a gear ring 218, the inner cavity of the liquid storage tank 203 is fixedly installed with a first sliding groove 219, the inside of the first sliding groove 219 is slidably installed with an inner ring gear 220, the diameter of the inner ring gear 220 is same with the inner diameter of the liquid storage tank 203, the gear ring 218 is engaged with the inner ring gear 220, the both sides of the inner ring gear 220 are fixedly installed with a scraping strip 221, the scraping strip 221 is provided with multiple, the scraping strip 221 is closely attached to the inner wall of the liquid storage tank 203, when the two connecting terminals 214 rotate, the rotating connecting terminal 214 can drive the fixed rod 217 to rotate, the rotating fixed rod 217 can drive the gear ring 218 to rotate, the rotating gear ring 218 can drive the inner ring gear 220 to slide inside the first sliding groove 219, and further can drive the scraping strip 221 to rotate on the inside of the liquid storage tank 203, so as to scrape the soil repair liquid on the inner wall of the liquid storage tank 203, different contaminated soil needs different soil repair liquid, by scraping the soil repair liquid on the inner wall of the liquid storage tank 203, the influence of the soil repair liquid remaining on the inner wall of the liquid storage tank 203 on the next soil repair can be avoided.

[0041] With reference to Figures 1-8The embodiment also provides that the interiors of the two extrusion boxes 201 are respectively provided with extrusion mechanisms 3, the extrusion mechanism 3 comprises a second rotating shaft 301, the second rotating shaft 301 is rotatably arranged in the interior of the communicating pipe 202, the second rotating shaft 301 penetrates to the exterior of the communicating pipe 202, the surface of the second rotating shaft 301 is fixedly provided with a fan blade 302, when the soil remediation liquid falls through the communicating pipe 202, the impact force of the soil remediation liquid can impact the fan blade 302, so that the fan blade 302 rotates, the rotating fan blade 302 can drive the second rotating shaft 301 to rotate, the end of the second rotating shaft 301 is fixedly provided with a mounting disc 303, the side of the mounting disc 303 is fixedly provided with a second double-groove belt pulley 304, the rotation of the second rotating shaft 301 can drive the mounting disc 303 to rotate, the rotating mounting disc 303 can rotate, the rotating mounting disc 303 can drive the second double-groove belt pulley 304 to rotate, the top of each of the two extrusion boxes 201 is fixedly provided with a mounting seat 305, the mounting seat 305 is provided with two, the side of each of the two mounting seats 305 is rotatably provided with a second driven wheel 306, the two second driven wheels 306 are connected with the second double-groove belt pulley 304 through a belt, so that the two second driven wheels 306 can rotate through the second double-groove belt pulley 304, the eccentric position of the second driven wheel 306 is rotatably provided with a rotating plate 307, the side of the rotating plate 307 is rotatably provided with a third connecting plate 308, the end of the third connecting plate 308 is rotatably provided with a piston rod 309, the two rotating second driven wheels 306 can drive the rotating plate 307 to rotate, and further can drive the rotating plate 307 to eccentrically rotate, so as to drive the third connecting plate 308 to rotate, and the piston rod 309 is driven by the third connecting plate 308 to perform up-and-down piston movement, the piston rod 309 penetrates to the interior of the extrusion box 201 and is slidably connected with the extrusion box 201, the end of the piston rod 309 is fixedly provided with a movable plate 310, the bottom of the movable plate 310 is fixedly provided with a connecting column 311, the connecting column 311 is provided with multiple, the end of the connecting column 311 is fixedly connected with the piston plate 210, the up-and-down movement of the piston rod 309 can drive the movable plate 310 to perform piston movement in the interior of the extrusion box 201, and further can drive the connecting column 311 to perform piston movement in the interior of the extrusion box 201, and further can drive the piston plate 210 to perform piston movement in the interior of the spraying pipe 209, when the soil remediation liquid appears in the interior of the extrusion box 201, the soil remediation liquid falls into the interior of the spraying pipe 209, and then the second rotating shaft 301 is driven to rotate under the impact of the soil remediation liquid, and further can drive the piston plate 210 to move downwards, the downwardly moving piston plate 210 enters into the interior of the spraying pipe 209, and the soil remediation liquid in the interior of the spraying pipe 209 is extruded, under the extrusion of the piston plate 210, the pressure of the soil remediation liquid is increased, so that the spraying distance of the soil remediation liquid is farther, the top of the movable plate 310 is fixedly provided with a limiting rod 312,The limiting rod 312 penetrates to the top of the extrusion box 201 and is in sliding connection with the extrusion box 201.

[0042] With reference to Figures 1-8The embodiment also proposes that the bottom of the platform plate 1 is provided with a power mechanism 4. The power mechanism 4 comprises side plates 401 fixedly installed at the bottom of the platform plate 1. The side plates 401 are provided with two. The two side plates 401 are rotatably installed with an axle 402. The surface of the axle 402 is fixedly installed with a third driven wheel 403. The other output end of the double-shaft motor 206 is fixedly installed with a second driving wheel 404. The second driving wheel 404 is connected with the third driven wheel 403 through a belt. The double-shaft motor 206 can drive the second driving wheel 404 to rotate. The rotating second driving wheel 404 can drive the third driven wheel 403 to rotate. In turn, the axle 402 can be driven to rotate. The side portions of the two side plates 401 are rotatably installed with power wheels 430. The power wheels 430 are fixedly connected with the axle 402. In turn, the power wheels 430 can be driven to rotate. In this way, the whole device can automatically move. The automatic movement of the device can avoid the staff from pushing the whole repair device. The staff's physical strength is saved. Moreover, the staff's body can be protected from being contaminated by the chemical components in the soil repair liquid. The side portions of the platform plate 1 are fixedly installed with mounting plates 405. The mounting plates 405 are provided with two. The surfaces of the two mounting plates 405 are provided with second sliding grooves 406. The second sliding grooves 406 are provided with two. The interiors of the two second sliding grooves 406 are slidably installed with sliding blocks 407. The side portions of the front sliding blocks 407 are rotatably installed with third rotating shafts 408. The surfaces of the third rotating shafts 408 are fixedly installed with fourth driven wheels 409. The surface of the axle 402 is fixedly installed with a third driving wheel 410. The third driving wheel 410 is connected with the fourth driven wheel 409 through a belt. The surface of the third rotating shaft 408 is fixedly installed with rotary tillage knives 411. The rotary tillage knives 411 are provided with multiple. The rotation of the axle 402 can drive the fourth driven wheel 409 to rotate. In turn, the third rotating shaft 408 can be driven to rotate. The rotating third rotating shaft 408 can drive the rotary tillage knives 411 to rotate. The rotating rotary tillage knives 411 can perform soil turning treatment on the soil of the node plate. The soil repair liquid can completely penetrate into the interior of the soil. The soil repair effect is better. The top of the platform plate 1 is fixedly installed with a battery pack 412. The battery pack 412 can provide power for the whole device. The top of the platform plate 1 is fixedly installed with a second motor 413. The end portion of the second motor 413 is fixedly installed with a first bevel gear 414. The side portion of the rear sliding block 407 is fixedly installed with a bottom plate 415. The top of the bottom plate 415 is rotatably installed with a rotating column 416. The surface of the rotating column 416 is fixedly installed with a protruding block 417. The second motor 413 can drive the first bevel gear 414 to rotate. The interior of the platform plate 1 is rotatably installed with a rotating cylinder 418. The surface of the rotating cylinder 418 is provided with a through groove 419. The protruding block 417 is engaged with the through groove 419. The surface of the rotating column 416 is fixedly installed with a third double-groove belt pulley 420. The side portion of the bottom plate 415 is provided with mounting grooves 421. The mounting grooves 421 are provided with two.The inner part of the two installation grooves 421 is slidably installed with saw plates 422. When the rotating cylinder 418 rotates, the rotating cylinder 418 can drive the rotating column 416 to rotate under the action of the protruding block 417 and the through groove 419. The rotating rotating column 416 can drive the third double-groove belt pulley 420 to rotate.

[0043] With reference to Figures 1-8 The top of the bottom plate 415 is rotatably installed with fifth driven wheels 423. The fifth driven wheels 423 are provided in two. The two fifth driven wheels 423 are connected with the third double-groove belt pulley 420. The rotating third double-groove belt pulley 420 can drive the fifth driven wheels 423 to rotate. The top of each of the two fifth driven wheels 423 is fixedly installed with a circular plate 424. The eccentric part of the circular plate 424 is rotatably installed with a first connecting plate 425. The bottom of the first connecting plate 425 is rotatably installed with a second connecting plate 426. The end of the second connecting plate 426 is fixedly installed with a support plate 427. The rotation of the fifth driven wheels 423 can drive the circular plate 424 to rotate, so as to drive the support plate 427 to reciprocate left and right. The ends of the two saw plates 422 are fixedly installed with sliding shafts 431. The support plate 427 is fixedly connected with the sliding shafts 431. When the support plate 427 reciprocates, it can drive the two saw plates 422 to reciprocate in the inner part of the installation groove 421. In this way, the two saw plates 422 can be staggered with each other, so as to cut the weeds and branches on the ground. When the soil repair solution is sprayed, the grass leaves and tree leaves are avoided to be blocked, so that the soil cannot be completely covered by the soil repair solution. The bottom of the platform plate 1 is fixedly installed with a damping rod 432. The bottom of the damping rod 432 is fixedly installed with an auxiliary wheel 433. The surface of the damping rod 432 is sleeved with a spring 434. The spring 434 is arranged between the auxiliary wheel 433 and the platform plate 1. The auxiliary wheel 433 and the bottom plate 415 are fixedly connected through a fixed plate. When the auxiliary wheel 433 walks on the uneven ground, the bottom plate 415 can adjust the height of the whole according to the height of the ground, so that the auxiliary wheel 433 and the bottom plate 415 maintain a horizontal plane. The top of the rotating cylinder 418 is fixedly installed with a second bevel gear 435. The second bevel gear 435 is engaged with the first bevel gear 414. The bottom of the platform plate 1 is rotatably installed with a cleaning plate 436. The top of the platform plate 1 is rotatably installed with a fifth driving wheel 428. The bottom of the second bevel gear 435 is fixedly installed with a sixth driven wheel 429. The fifth driving wheel 428 is connected with the sixth driven wheel 429 through a belt. The fifth driving wheel 428 is fixedly connected with the cleaning plate 436. Through the arrangement of the cleaning plate 436, the weeds can be pushed down, so that the rear saw plate 422 can cut the weeds that have been laid flat. At the same time, the cleaning plate 436 can also clean the stones and other sundries, so that the walking path of the whole repair device is kept clean, and the soil repair solution can smoothly penetrate into the inside of the soil.

[0044] With reference toFigures 1-8 The embodiment also provides a mine heavy metal contaminated soil remediation method, which is suitable for the mine heavy metal contaminated soil remediation device and includes the following steps:

[0045] S1: First, the contaminated soil needs to be evaluated to determine the types, contents and distribution of heavy metals, and the degree of pollution. This can be achieved by collecting samples for testing and analysis;

[0046] S2: Push the entire device to the ground that needs to be repaired. Removing the pollution source is the first step in soil remediation, which may include removing pollutants, waste, and contaminated vegetation;

[0047] S3: Improve the properties of the soil by using soil remediation liquid to reduce the availability and bioavailability of heavy metals;

[0048] S4: Plant plants that can adapt to heavy metal contaminated soil, such as acacia and reduced moss, to reduce the content of heavy metals in the soil using the absorption and enrichment capacity of plants;

[0049] S5: Regularly monitor the remediation effect to ensure the effectiveness of the remediation measures and adjust the remediation plan if necessary.

[0050] Specifically, the working process or working principle of the mine heavy metal contaminated soil remediation device and the remediation method is as follows: first, the worker carries the entire device to the ground that needs to be repaired, and then starts the double-shaft motor 206 and the second motor 413. The double-shaft motor 206 can drive the first driving wheel 207 to rotate, the rotating first driving wheel 207 can drive the first double-groove pulley 208 to rotate, and in turn the first driving wheel 207 can drive the first driving wheel 205 to rotate, and in turn the first driving wheel 205 can drive the first rotating shaft 211 to rotate. The rotation of the first rotating shaft 211 can drive the connecting rod 212 to rotate, and the rotating connecting rod 212 can drive the stirring plate 213 to rotate, thereby preventing the soil remediation liquid from precipitating after being placed for a long time.

[0051] The clamping groove 215 is engaged with the clamping block 216. Through the arrangement of the clamping block 216 and the clamping groove 215, the left first rotating shaft 211 can drive the right first rotating shaft 211 to rotate. The rotating connecting terminal 214 can drive the fixed rod 217 to rotate, the rotating fixed rod 217 can drive the gear ring 218 to rotate, the rotating gear ring 218 can drive the inner ring teeth 220 to slide in the first sliding groove 219, and in turn the scraping strip 221 can rotate on the inner wall of the liquid storage tank 203 to scrape off the soil remediation liquid on the inner wall of the liquid storage tank 203.

[0052] When the soil remediation liquid falls through the communication pipe 202, the impact force of the soil remediation liquid can impact the fan blade 302, causing the fan blade 302 to rotate, and the rotating fan blade 302 can drive the second rotating shaft 301 to rotate, and the rotation of the second rotating shaft 301 can drive the mounting disc 303 to rotate, and the rotating mounting disc 303 can rotate, and the rotating mounting disc 303 can drive the second double-groove pulley 304 to rotate, and the two second driven wheels 306 can rotate through the second double-groove pulley 304, and the two rotating second driven wheels 306 can drive the rotating plate 307 to rotate, and further can drive the rotating plate 307 to eccentrically rotate, so as to drive the third connecting plate 308 to rotate, and the piston rod 309 is driven by the third connecting plate 308 to move up and down, and the up and down movement of the piston rod 309 can drive the movable plate 310 to move in the piston motion in the inside of the extrusion box 201, and further can drive the connecting column 311 to move in the piston motion in the inside of the extrusion box 201, and further can drive the piston plate 210 to move in the piston motion in the inside of the spray pipe 209, and the pressure of the soil remediation liquid is increased, so that the spraying distance of the soil remediation liquid is farther.

[0053] The double-shaft motor 206 can drive the second driving wheel 404 to rotate, the rotating second driving wheel 404 can drive the third driven wheel 403 to rotate, and further can drive the axle 402 to rotate, and further can drive the power wheel 430 to rotate, so that the whole device moves, the rotation of the axle 402 can drive the fourth driven wheel 409 to rotate, and further can drive the third rotating shaft 408 to rotate, the rotating third rotating shaft 408 can drive the rotary tiller 411 to rotate, and the rotating rotary tiller 411 can perform soil turning treatment on the soil of the knot plate, so that the soil remediation liquid can completely penetrate into the inside of the soil.

[0054] The second motor 413 can drive the first bevel gear 414 to rotate, the rotating first bevel gear 414 can drive the second bevel gear 435 to rotate, the rotating second bevel gear 435 can drive the rotating cylinder 418 to rotate, the rotating cylinder 418 can drive the rotating column 416 to rotate, the rotating column 416 can drive the third double-groove pulley 420 to rotate, the rotating third double-groove pulley 420 can drive the fifth driven wheel 423 to rotate, the rotating fifth driven wheel 423 can drive the circular plate 424 to rotate, so as to drive the supporting plate 427 to reciprocate left and right, when the supporting plate 427 reciprocates, the two saw plates 422 can reciprocate in the mounting groove 421, so that the two saw plates 422 can be staggered, so that the grass and branches on the ground can be cut, and the grass and leaves are prevented from being blocked when the soil repair liquid is sprayed, when the auxiliary wheel 433 walks on the uneven ground, the bottom plate 415 can adjust the height of the whole according to the height of the ground, so that the auxiliary wheel 433 and the bottom plate 415 remain a horizontal plane.

Claims

1. A device for remediating heavy metal contaminated soil in mines, comprising a platform plate (1), characterized in that, A spraying mechanism (2) is installed on the top of the platform plate (1), and the spraying mechanism (2) includes: An extrusion box (201) is fixedly installed on the top of the platform plate (1). There are two extrusion boxes (201), and a connecting pipe (202) is fixedly installed on the top of each of the two extrusion boxes (201). A liquid storage tank (203) is fixedly installed on the top of a connecting pipe (202). A top cover (204) is provided on the top of the liquid storage tank (203). A first driven wheel (205) is rotatably installed on the side of the liquid storage tank (203). A dual-axis motor (206) is fixedly installed on the top of the platform plate (1). A first drive wheel (207) is fixedly installed at the output end of the dual-axis motor (206). A first double-groove pulley (208) is rotatably installed on the side of the extrusion box (201). The first driven wheel (205) and the first drive wheel (207) are both connected to the first double-groove pulley (208) by belts. Spray pipe (209), the spray pipe (209) is fixedly installed at the bottom of the platform plate (1), and multiple spray pipes (209) are provided, and piston plates (210) are slidably installed inside the multiple spray pipes (209); The liquid storage tank (203) is internally rotatably mounted with a first rotating shaft (211). There are two first rotating shafts (211). The right first rotating shaft (211) is fixedly connected to the first driven wheel (205). The surfaces of the two first rotating shafts (211) are fixedly mounted with connecting rods (212). There are multiple connecting rods (212). The ends of the multiple connecting rods (212) are fixedly mounted with stirring plates (213). The ends of the two first rotating shafts (211) are fixedly mounted with connecting terminals (214). The end of the left connecting terminal (214) is provided with a slot (215). The end of the right connecting terminal (214) is fixedly mounted with a locking block (216). The slot (215) and the locking block (216) engage with each other. A fixing rod (217) is fixedly installed on the surface of the connecting terminal (214). Multiple fixing rods (217) are provided. A toothed ring (218) is fixedly installed at the end of each fixing rod (217). A first sliding groove (219) is fixedly installed in the inner cavity of the liquid storage tank (203). An inner ring tooth (220) is slidably installed inside the first sliding groove (219). The toothed ring (218) meshes with the inner ring tooth (220). A scraper (221) is fixedly installed on both sides of the inner ring tooth (220). Multiple scrapers (221) are provided. Both extrusion boxes (201) are equipped with an extrusion mechanism (3). The extrusion mechanism (3) includes a second rotating shaft (301). The second rotating shaft (301) is rotatably installed inside the connecting pipe (202) and extends through to the outside of the connecting pipe (202). A fan blade (302) is fixedly installed on the surface of the second rotating shaft (301). An installation plate (303) is fixedly installed at the end of the second rotating shaft (301). A second double-groove pulley (304) is fixedly installed on the side of the installation plate (303). An installation seat (305) is fixedly installed on the top of both extrusion boxes (201). There are two installation seats (305). A second driven wheel (306) is rotatably installed on the side of each of the two installation seats (305). The second driven wheel (306) is connected to the second double-groove pulley (304) by a belt. A rotating plate (307) is rotatably mounted on the eccentric part of the second driven wheel (306). A third connecting plate (308) is rotatably mounted on the side of the rotating plate (307). A piston rod (309) is rotatably mounted on the end of the third connecting plate (308). The piston rod (309) penetrates into the interior of the extrusion box (201) and is slidably connected to the extrusion box (201). A movable plate (310) is fixedly mounted on the end of the piston rod (309). A connecting column (311) is fixedly mounted on the bottom of the movable plate (310). Multiple connecting columns (311) are provided. The ends of the multiple connecting columns (311) are fixedly connected to the piston plate (210). A limit rod (312) is fixedly mounted on the top of the movable plate (310). The limit rod (312) penetrates into the top of the extrusion box (201) and is slidably connected to the extrusion box (201).

2. The device for remediating heavy metal contaminated soil in mines according to claim 1, characterized in that, A power mechanism (4) is installed at the bottom of the platform plate (1). The power mechanism (4) includes a side plate (401). The side plate (401) is fixedly installed at the bottom of the platform plate (1). There are two side plates (401). An axle (402) is rotatably installed between the two side plates (401). A third driven wheel (403) is fixedly installed on the surface of the axle (402). A second driving wheel (404) is fixedly installed at the other output end of the dual-axis motor (206). The second driving wheel (404) is connected to the third driven wheel (403) by a belt. A power wheel (430) is rotatably installed on the side of each of the two side plates (401). The power wheel (430) is fixedly connected to the axle (402).

3. The device for remediating heavy metal contaminated soil in mines according to claim 2, characterized in that, The platform plate (1) is fixedly mounted with an installation plate (405). There are two installation plates (405). The surfaces of the two installation plates (405) are provided with second sliding grooves (406). There are two second sliding grooves (406). A slider (407) is slidably mounted inside each of the two second sliding grooves (406). A third rotating shaft (408) is rotatably mounted on the side of the front slider (407). A fourth driven wheel (409) is fixedly mounted on the surface of the third rotating shaft (408). A third driving wheel (410) is fixedly mounted on the surface of the axle (402). The third driving wheel (410) is connected to the fourth driven wheel (409) by a belt. A rotary tiller (411) is fixedly mounted on the surface of the third rotating shaft (408). There are multiple rotary tillers (411).

4. The device for remediating heavy metal contaminated soil in mines according to claim 3, characterized in that, A battery pack (412) is fixedly installed on the top of the platform plate (1). A second motor (413) is fixedly installed on the top of the platform plate (1). A first bevel gear (414) is fixedly installed at the end of the second motor (413). A base plate (415) is fixedly installed on the side of the rear slider (407). A rotating column (416) is rotatably installed on the top of the base plate (415). A protrusion (417) is fixedly installed on the surface of the rotating column (416). (1) The rotating cylinder (418) is rotatably installed inside. The surface of the rotating cylinder (418) is provided with a through groove (419). The protrusion (417) meshes with the through groove (419). The surface of the rotating column (416) is fixedly installed with a third double groove pulley (420). The side of the bottom plate (415) is provided with an installation groove (421). There are two installation grooves (421). The saw blade (422) is slidably installed inside both installation grooves (421).

5. The device for remediating heavy metal contaminated soil in mines according to claim 4, characterized in that, A fifth driven wheel (423) is rotatably mounted on the top of the base plate (415). There are two fifth driven wheels (423), and the two fifth driven wheels (423) are connected to a third double-groove pulley (420). A circular plate (424) is fixedly mounted on the top of each of the two fifth driven wheels (423). A first connecting plate (425) is rotatably mounted on the eccentric part of the circular plate (424). A second connecting plate (426) is rotatably mounted on the bottom of the first connecting plate (425). A support plate (427) is fixedly mounted on the end of the second connecting plate (426). A sliding shaft (431) is fixedly mounted on the end of each of the two saw blades (422). The support plate (427) is fixedly connected to the sliding shaft (431). The bottom of the platform plate (1) is fixed. A damping rod (432) is installed, and an auxiliary wheel (433) is fixedly installed at the bottom of the damping rod (432). A spring (434) is sleeved on the surface of the damping rod (432). The spring (434) is located between the auxiliary wheel (433) and the platform plate (1). A second bevel gear (435) is fixedly installed at the top of the rotating cylinder (418). A cleaning plate (436) is rotatably installed at the bottom of the platform plate (1). A fifth driving wheel (428) is rotatably installed at the top of the platform plate (1). A sixth driven wheel (429) is fixedly installed at the bottom of the second bevel gear (435). The fifth driving wheel (428) is connected to the sixth driven wheel (429) via a belt. The fifth driving wheel (428) is fixedly connected to the cleaning plate (436).

6. A remediation method applicable to the mine heavy metal contaminated soil remediation device according to any one of claims 1-5, characterized in that, The steps are as follows: S1: First, it is necessary to assess the contaminated soil to determine the types, contents, and distribution of heavy metals, as well as the degree of pollution, by collecting samples for testing and analysis. S2: Push the mine heavy metal contaminated soil remediation device onto the ground that needs remediation. Removing the source of pollution is the first step in soil remediation, which includes removing pollutants, waste and contaminated vegetation. S3: Improve soil properties and reduce the availability and bioavailability of heavy metals through soil remediation solutions; S4: Plant plants that are adapted to soils contaminated with heavy metals, and use the plants’ absorption and accumulation capabilities to reduce the content of heavy metals in the soil. S5: Regularly monitor the repair results to ensure the effectiveness of the repair measures and adjust the repair plan accordingly.

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