Leaching equipment for remediation of soil pollution in tungsten mining area

Abstract

The invention relates to the field of soil remediation, in particular to leaching equipment for tungsten mine area soil pollution remediation. Comprising a moving vehicle, a material mixing barrel is arranged on the moving vehicle, a stirring mechanism used for stirring soil is arranged on the material mixing barrel, a liquid conveying mechanism is further arranged on the material mixing barrel, the liquid conveying mechanism is used for adding a solution into the material mixing barrel to be mixed with the soil, first springs are connected to the moving vehicle at intervals, and a separation frame is connected between the first springs; and a discharge hole is formed in the separation frame. The leaching equipment is mounted on the mobile vehicle, so that the mobility and the flexibility of the equipment are greatly improved, an operator can quickly move the equipment from one pollution point to another pollution point as required, the equipment is particularly suitable for treating a multi-point dispersed pollution area, the time and the labor cost are saved, the repair efficiency is improved, and the repair cost is reduced. And the design is compact, the integration degree is high, the occupied area is reduced, operation can be conveniently carried out in a limited space, and the device is suitable for various terrain and environmental conditions.

Description

Technical Field

[0001] The invention relates to the field of soil remediation, and in particular to a leaching device for remediating soil pollution in tungsten mining areas. Background Art

[0002] With the acceleration of the global industrialization process, mining activities, as one of the key factors to promote economic development, have become increasingly important; however, the mining and processing of mineral resources have also brought about environmental problems that cannot be ignored, especially heavy metal pollution; in tungsten mining areas, due to their unique geological conditions and specific mining methods, they have become a disaster area for heavy metal pollution. A large amount of harmful heavy metals have accumulated in the soil around the mining areas, including but not limited to tungsten, lead, cadmium, etc. These heavy metals not only seriously damage the natural environment, but may also enter the human body through the food chain, threatening human health. Therefore, it is particularly important to develop efficient and safe soil pollution remediation technologies.

[0003] At present, among many soil pollution remediation technologies, soil leaching has been widely recognized because of its simple operation and remarkable effect. Soil leaching technology is mainly divided into two types: in-situ leaching and ex-situ leaching. In-situ leaching is to inject leaching liquid directly into the soil at the pollution site to make it react with the pollutants in the soil to achieve the purpose of purification. However, this method requires highly precise control of the amount, speed and direction of the leaching agent. Once an error is made, it is easy to cause pollution to the deep soil. Therefore, ex-situ leaching technology is now mostly used. Ex-situ leaching is to dig out the contaminated soil, and then mix it with the leaching liquid in a special equipment. Heavy metals are separated from soil particles through physical or chemical action, and finally removed through solid-liquid separation technology. This leaching technology can effectively avoid contamination of deep soil. However, although ex situ leaching technology performs well in treating heavily contaminated soil, existing equipment has some obvious limitations. First, traditional ex situ leaching equipment is usually fixedly installed in a specific area, occupying a large area, and it is difficult to quickly respond to multiple dispersed contaminated areas; secondly, this fixed equipment has poor mobility and flexibility, and cannot be quickly transferred from one location to another, limiting its application efficiency in a wide area. Summary of the invention

[0004] In view of this, the present invention provides a leaching equipment for soil pollution remediation in tungsten mining areas, which can solve the shortcomings of existing ex situ soil leaching equipment, such as large footprint, difficulty in quickly responding to multi-point dispersed pollution areas, poor mobility and flexibility, and inability to be quickly transferred from one location to another.

[0005] The technical scheme of the present invention is: a leaching device for soil pollution remediation in tungsten mining areas, comprising a mobile vehicle, a mixing barrel is arranged on the mobile vehicle, a stirring mechanism for stirring soil is arranged on the mixing barrel, an infusion mechanism is also arranged on the mixing barrel, the infusion mechanism is used to add a solution into the mixing barrel and mix it with soil, first springs are connected to the mobile vehicle at intervals, a separation frame is connected between the first springs, a discharge port is provided on the separation frame, a sludge pump is installed on the mobile vehicle, a feeding end of the sludge pump is connected to the mixing barrel, a filter frame is arranged at the bottom of the separation frame, a hydraulic cylinder is arranged on the separation frame, a pressing block is slidingly arranged on the top of the separation frame, and the pressing block is connected to the mixing barrel. The telescopic rod of the hydraulic cylinder is connected, a feeding hole is opened on the pressing block, and the discharge end of the sludge pump is connected with the feeding hole through a transmission hose. The sludge pump is used to draw the mud in the mixing barrel into the separation frame, and the hydraulic cylinder is used to drive the pressing block to squeeze the mud in the separation frame. The filter frame is used to collect the liquid in the mud. The separation frame is provided with a shielding mechanism for shielding the discharge port. The mobile vehicle is provided with a drainage mechanism, which is used to discharge the liquid in the filter frame. A vibrator and a first discharge frame are installed on the separation frame. The vibrator is used to drive the separation frame to vibrate, and the first discharge frame is used to discharge the soil in the separation frame.

[0006] Furthermore, the stirring mechanism includes a servo motor, a hollow tube and a stirring frame. The servo motor is installed on the mixing barrel. A hollow tube is rotatably installed in the mixing barrel. The output shaft of the servo motor is connected to the hollow tube. A stirring frame for stirring soil is installed outside the hollow tube.

[0007] Furthermore, the infusion mechanism includes a first water pump, an annular nozzle and a connecting pipe. The first water pump is installed on the mobile vehicle, the annular nozzle is provided on the mixing barrel, and the water outlet end of the first water pump is connected to the annular nozzle through the connecting pipe.

[0008] Furthermore, the shielding mechanism includes a first electric push rod and a first baffle. The first electric push rod is installed on the side of the separation frame. The first baffle is slidably arranged on the inner side of the separation frame. The first baffle is used to shield the discharge port. The telescopic rod of the first electric push rod is connected to the first baffle. The first baffle is provided with a material passage hole of the same size as the discharge port.

[0009] Furthermore, the drainage mechanism includes a second water pump and a drainage hose. The second water pump is installed on the mobile vehicle, and the water inlet end of the second water pump is connected to the filter frame through the drainage hose.

[0010] Furthermore, it also includes a closing mechanism, which includes a perforated support plate, a movable rod, a second baffle and a second spring. A perforated support plate is arranged in the feeding hole of the pressure block, and a movable rod is slidably arranged on the perforated support plate. The bottom end of the movable rod is connected to the second baffle, and the second baffle is used to cover the feeding hole. A second spring is connected between the bottom of the perforated support plate and the second baffle.

[0011] Furthermore, it also includes a filtering mechanism, which includes a filter bucket, a second electric push rod, an annular baffle and a second discharge frame. A filter bucket for filtering mud is installed on the inner side of the mixing barrel, through holes are arranged at intervals on the side of the hollow tube, a second electric push rod is installed on the top of the hollow tube, the telescopic rod of the second electric push rod is connected to the annular baffle, the annular baffle is located on the inner side of the hollow tube, the annular baffle is used to cover the through hole, and the second discharge frame is installed on the mobile vehicle.

[0012] Furthermore, it also includes a feeding mechanism, which includes a support frame, a feeding frame, a driving motor, a winding wheel, a guide wheel and a connecting rope. The support frame is symmetrically installed on the mobile vehicle, and the feeding frame is rotatably installed between the two support frames. The support frame is provided with a driving motor, and the winding wheel is connected to the output shaft of the driving motor. The feeding frame is symmetrically rotatably provided with a guide wheel, and a connecting rope is wound around the winding wheel. One end of the connecting rope is connected to the winding wheel, and the other end of the connecting rope is connected to the support frame after passing around the guide wheel.

[0013] Furthermore, it also includes a screening mechanism, which includes a screening net, a rotating plate and a third discharge frame. The feeding frame is provided with a screening net for screening soil, the feeding frame is rotatably provided with a rotating plate, and the feeding frame is provided with a third discharge frame.

[0014] The beneficial effects are: 1. The present invention greatly improves the mobility and flexibility of the equipment by installing the rinsing equipment on a mobile vehicle. The operator can quickly move the equipment from one pollution point to another pollution point as needed. It is particularly suitable for treating multi-point dispersed pollution areas, which not only saves time and labor costs, but also improves the repair efficiency. Moreover, the present invention has a compact design, high integration, reduced floor space, and is convenient for operation in a limited space. It is suitable for various terrains and environmental conditions.

[0015] 2. The present invention can effectively remove impurities such as stones and branches in the soil by setting up filtering mechanisms and screening mechanisms, preventing these impurities from entering the interior of the equipment and causing blockage or damage. This not only improves the service life of the equipment, but also ensures the stability of the repair effect.

[0016] 3. The present invention provides a feeding mechanism, so the operator only needs to shovel the contaminated soil into the bottom of the feeding frame, and then the contaminated soil can be poured into the mixing barrel by rotating the feeding frame. This not only makes it convenient for the operator to shovel the contaminated soil into the mixing barrel, but also saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the stirring mechanism and the infusion mechanism of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the stirring mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the infusion mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the liquid discharge mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the sludge pump, transmission hose and material delivery hole of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the sludge pump, the transmission hose and the support plate with holes of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the mobile vehicle, the filter bucket and the second discharge frame of the present invention.

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the filtering mechanism of the present invention.

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention.

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the screening mechanism of the present invention.

[0030] In the accompanying drawings: 1-mobile vehicle, 2-mixing barrel, 301-servo motor, 302-hollow pipe, 303-stirring frame, 401-first water pump, 402-annular nozzle, 403-connecting pipe, 5-first spring, 6-separation frame, 601-discharge port, 7-sludge pump, 8-transmission hose, 9-filter frame, 10-hydraulic cylinder, 11-pressing block, 1101-feeding hole, 1201-first electric push rod, 1202-first baffle, 1221-feeding hole, 13 01-the second water pump, 1302-drain hose, 14-vibrator, 15-the first discharging frame, 16-perforated support plate, 17-movable rod, 18-the second baffle, 19-the second spring, 20-filter bucket, 21-the second electric push rod, 22-annular baffle, 23-the second discharging frame, 24-support frame, 25-loading frame, 26-driving motor, 27-winding wheel, 28-guide wheel, 29-connecting rope, 30-screening net, 31-rotating plate, 32-the third discharging frame. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] Example: A leaching device for soil pollution remediation in tungsten mining areas, see Figure 1-Figure 7 As shown, it includes a mobile vehicle 1; it also includes a mixing barrel 2, a first spring 5, a separation frame 6, a sludge pump 7, a transmission hose 8, a filter frame 9, a hydraulic cylinder 10, a pressing block 11, a vibrator 14, a first discharging frame 15, a stirring mechanism, an infusion mechanism, a shielding mechanism and a discharge mechanism; the mobile vehicle 1 is provided with a mixing barrel 2; the mixing barrel 2 is provided with a stirring mechanism for stirring soil; the mixing barrel 2 is also provided with an infusion mechanism, which is used to add a solution into the mixing barrel 2 and mix with the soil Mix so that the solution and the soil are mixed to form mud; four first springs 5 ​​are connected to the mobile vehicle 1 at intervals, and a separation frame 6 is connected between the upper ends of the first springs 5, and a discharge port 601 is opened at the lower front side of the separation frame 6; a sludge pump 7 is installed on the mobile vehicle 1, and the feed end of the sludge pump 7 is connected to the mixing barrel 2; a filter frame 9 is arranged at the bottom of the separation frame 6, and the top surface of the filter frame 9 is inclined; hydraulic cylinders 10 are arranged on both the front and rear sides of the top of the separation frame 6; a pressure block 1 is slidingly arranged at the top of the separation frame 6 1, the bottom surface of the pressing block 11 is an inclined surface adapted to the top surface of the filter frame 9, the telescopic rods of the two hydraulic cylinders 10 are connected to the top of the pressing block 11, and a feeding hole 1101 is opened on the pressing block 11. The discharge end of the sludge pump 7 is connected to the feeding hole 1101 through a transmission hose 8. The sludge pump 7 is used to pump the sludge in the mixing barrel 2 into the separation frame 6, and the hydraulic cylinder 10 is used to drive the pressing block 11 to squeeze the sludge in the separation frame 6. The filter frame 9 is used to collect the liquid in the sludge, and the mud It stays on the top of the filter frame 9; a shielding mechanism for shielding the discharge port 601 is provided on the separation frame 6; a drainage mechanism is provided on the mobile vehicle 1, and the drainage mechanism is used to discharge the liquid in the filter frame 9; a vibrator 14 is installed in the middle of the top of the separation frame 6; a first discharge frame 15 is installed at the lower front part of the separation frame 6, and the separation frame 6 and the soil therein are vibrated by the vibrator 14, so that the soil in the separation frame 6 can be discharged from the discharge port 601 and the first discharge frame 15.

[0033] See also Figure 2 and Figure 3 As shown, the stirring mechanism includes a servo motor 301, a hollow tube 302 and a stirring frame 303; the servo motor 301 is installed in the middle of the top of the mixing barrel 2; a hollow tube 302 is rotatably installed in the middle of the inner side of the mixing barrel 2, and the output shaft of the servo motor 301 is connected to the top of the hollow tube 302; stirring frames 303 for stirring soil are installed on the upper and lower sides of the outer side of the hollow tube 302.

[0034] See also Figure 2 and Figure 4As shown, the infusion mechanism includes a first water pump 401, an annular nozzle 402 and a connecting pipe 403; the first water pump 401 is installed on the mobile vehicle 1; an annular nozzle 402 is provided on the upper inner side of the mixing barrel 2, and the water outlet end of the first water pump 401 is connected to the annular nozzle 402 through the connecting pipe 403.

[0035] See also Figure 6 As shown, the shielding mechanism includes a first electric push rod 1201 and a first baffle 1202; the first electric push rod 1201 is installed on the upper front side of the separation frame 6; the first baffle 1202 is slidably arranged on the front side of the separation frame 6, and the first baffle 1202 shields the discharge port 601; the telescopic rod of the first electric push rod 1201 is connected to the first baffle 1202, and a through hole 1221 of the same size as the discharge port 601 is opened on the lower side of the first baffle 1202.

[0036] See also Figure 5 and Figure 6 As shown, the drainage mechanism includes a second water pump 1301 and a drainage hose 1302 ; the second water pump 1301 is installed on the mobile vehicle 1 ; the water inlet end of the second water pump 1301 is connected to the filter frame 9 through the drainage hose 1302 .

[0037] When in use, the staff controls the mobile vehicle 1 to move to the designated position, and then shovels the contaminated soil at the position into the mixing barrel 2, until the mixing barrel 2 is filled with a proper amount of contaminated soil, and then connects the tank containing the solution with the water inlet end of the first water pump 401, and then uses the first water pump 401 to draw the solution in the tank into the connecting pipe 403 and the annular nozzle 402, so that the annular nozzle 402 sprays the solution in the mixing barrel 2 to mix with the soil, and at the same time drives the hollow tube 302 and the stirring frame 303 to rotate through the servo motor 301, so that the stirring frame 303 stirs the soil and solution in the mixing barrel 2, so that the soil and the solution are evenly mixed, so that the solution rinses the soil, and then the soil is washed. The heavy metal substances in the soil are removed to repair the contaminated soil. After the soil and solution in the mixing barrel 2 are mixed to form mud, the sludge pump 7 is used to pump the mud in the mixing barrel 2 into the separation frame 6 through the transmission hose 8 and the feed hole 1101, so that the mud is accumulated on the top of the filter frame 9, and then the water outlet of the second water pump 1301 is connected to the pipeline for collecting the solution. After that, when the mud in the mixing barrel 2 is completely pumped into the separation frame 6, the hydraulic cylinder 10 drives the pressing block 11 to move downward, so that the pressing block 11 squeezes the mud in the separation frame 6. After the mud is squeezed, the liquid in the mud will flow downward into the filter frame 9 for collection, and the solid (soil) in the mud will remain on the top of the filter frame 9 , so as to separate the solid and liquid of the mud, and at the same time use the second water pump 1301 to pump the liquid in the filter frame 9 into the pipeline for collecting the solution through the drainage hose 1302, so as to recycle the liquid. After the solid-liquid separation of the mud is completed, the hydraulic cylinder 10 drives the pressing block 11 to move upward and reset, and at the same time, the first baffle 1202 is driven to move upward by the first electric push rod 1201, so that the first baffle 1202 does not block the discharge port 601, and the through hole 1221 on the first baffle 1202 is aligned with the discharge port 601, so that the mud on the top of the filter frame 9 can slide forward to the discharge port 601 and the first discharge frame 15 for discharge, and at the same time, the vibrator 14 is started to drive the separation frame 6, the filter frame 9 and the pressing block 11 vibrates, and the first spring 5 undergoes adaptive deformation, so as to shake off the soil adhered to the separation frame 6, the filter frame 9 and the pressing block 11. After the soil in the separation frame 6 is discharged, the vibrator 14 is turned off, and the first baffle 1202 is driven by the first electric push rod 1201 to move downward and reset, so that the first baffle 1202 blocks the discharge port 601 again, and then repeat the above operation, the contaminated soil can be repeatedly repaired and discharged. After the contaminated soil at this location is repaired, the tank containing the solution is disconnected from the water inlet end of the first water pump 401, and the water outlet end of the second water pump 1301 is disconnected from the pipeline for collecting the solution, and then the soil at the next location can be repaired.

[0038] See also Figure 8 and Fig. 9As shown, it also includes a closing mechanism, which includes a perforated support plate 16, a movable rod 17, a second baffle 18 and a second spring 19; a perforated support plate 16 is arranged in the feeding hole 1101 of the pressing block 11, and circular holes are arranged at intervals on the perforated support plate 16; a movable rod 17 is slidably arranged in the middle of the perforated support plate 16; the bottom end of the movable rod 17 is connected to the second baffle 18, and the second baffle 18 is used to cover the feeding hole 1101; a second spring 19 is connected between the bottom of the perforated support plate 16 and the top of the second baffle 18.

[0039] When the mud is discharged into the separation frame 6 through the feed hole 1101, the mud will squeeze the movable rod 17 and the second baffle 18 to move downward, and the second spring 19 will be stretched so that the second baffle 18 will not block the feed hole 1101. At the same time, the mud will pass through the circular hole on the perforated support plate 16; when the mud is completely discharged into the separation frame 6, the second spring 19 returns to its original state, and the second spring 19 drives the movable rod 17 and the second baffle 18 to move upward and reset, so that the second baffle 18 blocks the feed hole 1101 again; thereafter, when the pressing block 11 squeezes the mud downward, the feed hole 1101 is blocked by the second baffle 18, which can prevent the mud from entering the feed hole 1101 after being compressed, and avoid a large amount of mud from remaining in the feed hole 1101.

[0040] See also Fig.10 and Fig.11 As shown, it also includes a filtering mechanism, which includes a filter bucket 20, a second electric push rod 21, an annular baffle 22 and a second discharge frame 23; a filter bucket 20 for filtering mud is installed on the upper inner side of the mixing barrel 2; through holes are spaced apart on the side of the middle part of the hollow tube 302, and the through holes are located on the inner side of the filter bucket 20; a second electric push rod 21 is installed on the top of the hollow tube 302; the telescopic rod of the second electric push rod 21 is connected to the annular baffle 22, the annular baffle 22 is located on the inner side of the hollow tube 302, and the annular baffle 22 blocks the through hole; a second discharge frame 23 is installed on the mobile vehicle 1.

[0041] When the operator shovels the contaminated soil into the mixing barrel 2, the contaminated soil will fall on the filter bucket 20, and then the filter bucket 20 will filter the soil, thereby filtering the stones in the soil into the filter bucket 20 to prevent the stones from being drawn into the sludge pump 7 and the transmission hose 8 to cause blockage. Then, when the solution is sprayed into the mixing barrel 2, the solution will not only remove the heavy metals in the soil, but also remove the heavy metals on the stones. After the mud in the mixing barrel 2 is completely pumped away, the second electric push rod 21 drives the annular baffle 22 to move upward, so that the annular baffle 22 no longer blocks the through hole on the middle side of the hollow tube 302, so that the stones in the filter bucket 20 roll into the hollow tube 302 through the through hole, until the stones enter the hollow tube 302 and fall down into the second discharging frame 23 for discharge. After the stones in the filter bucket 20 are completely discharged, the annular baffle 22 is driven by the second electric push rod 21 to move downward and reset, so that the annular baffle 22 blocks the through hole on the middle side of the hollow tube 302 again.

[0042] See also Fig.12 As shown, it also includes a feeding mechanism, which includes a support frame 24, a feeding frame 25, a driving motor 26, a winding wheel 27, a guide wheel 28 and a connecting rope 29; the support frame 24 is symmetrically installed on the mobile vehicle 1; the feeding frame 25 is rotatably installed between the upper sides of the two support frames 24; the driving motor 26 is arranged on the upper side of the support frame 24; the winding wheel 27 is connected to the output shaft of the driving motor 26; the feeding frame 25 is symmetrically rotatably arranged on the front and back guide wheel 28; a connecting rope 29 is wound around the winding wheel 27, one end of the connecting rope 29 is connected to the winding wheel 27, and the other end of the connecting rope 29 is connected to the support frame 24 after passing around the guide wheel 28.

[0043] See also Fig.12 and Fig.13 As shown, it also includes a screening mechanism, which includes a screening net 30, a rotating plate 31 and a third discharge frame 32; a screening net 30 for screening soil is arranged inside the loading frame 25; a rotating plate 31 is rotatably arranged in the middle of the right side of the loading frame 25; and a third discharge frame 32 is arranged at the lower side of the loading frame 25.

[0044] When the operator needs to shovel the contaminated soil into the mixing barrel 2, the contaminated soil can be shoveled into the bottom of the feeding frame 25. After a proper amount of soil is loaded into the bottom of the feeding frame 25, the driving motor 26 drives the winding wheel 27 to rotate, so that the winding wheel 27 reels the connecting rope 29, so that the connecting rope 29 pulls the feeding frame 25 to rotate counterclockwise through the guide wheel 28. As the feeding frame 25 gradually rotates counterclockwise, the soil therein will gradually fall to the lower left into the mixing barrel 2 due to gravity. In this way, it is convenient for the operator to shovel the contaminated soil into the mixing barrel 2. At the same time, when the soil in the feeding frame 25 passes through the screening net 30, the screening net 30 will screen the soil in the feeding frame 25, thereby screening out rod-shaped objects such as branches in the soil to prevent rod-shaped objects such as branches from entering the mixing barrel 2 and affecting the mixing of the soil. When the soil in the feeding frame 25 hits the rotating plate 31 under the influence of gravity, the soil in the feeding frame 25 will also squeeze the rotating plate 31 to rotate, so that the rotating plate 31 does not block the soil from falling, and the rotating plate 31 is separated from the screening net 30. When the soil in the feeding frame 25 all falls into the mixing barrel 2, the rotating plate 31 will be reversed and reset by gravity, so that the rotating plate 31 contacts the screening net 30 again, and then the winding wheel 27 is driven by the driving motor 26 to reverse and reset, so that the winding wheel 27 unwinds the connecting rope 29, so that the feeding frame 25 is affected by gravity to rotate and reset clockwise. As the feeding frame 25 rotates and resets clockwise, the rod-shaped objects such as branches screened out in the screening net 30 will gradually fall down under the influence of gravity. When the rod-shaped objects such as branches fall down and contact with the rotating plate 31, the rod-shaped objects such as branches will slide through the rotating plate 31 to the third discharging frame 32 for discharging.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A washing device for soil pollution remediation in tungsten mining areas, comprising a mobile vehicle (1), characterized in that: The mobile vehicle (1) is provided with a mixing barrel (2), the mixing barrel (2) is provided with a stirring mechanism for stirring soil, the mixing barrel (2) is also provided with an infusion mechanism, the infusion mechanism is used to add a solution into the mixing barrel (2) and mix it with soil, the mobile vehicle (1) is connected with first springs (5) at intervals, a separation frame (6) is connected between the first springs (5), a discharge port (601) is provided on the separation frame (6), a sludge pump (7) is installed on the mobile vehicle (1), the feed end of the sludge pump (7) is connected to the mixing barrel (2), a filter frame (9) is provided at the bottom of the separation frame (6), a hydraulic cylinder (10) is provided on the separation frame (6), a pressing block (11) is slidably provided at the top of the separation frame (6), the pressing block (11) is connected to the telescopic rod of the hydraulic cylinder (10), and a material delivery port (601) is provided on the pressing block (11). The sludge pump (7) is connected to the feeding hole (1101) through a transmission hose (8). The sludge pump (7) is used to pump the sludge in the mixing barrel (2) into the separation frame (6). The hydraulic cylinder (10) is used to drive the pressing block (11) to squeeze the sludge in the separation frame (6). The filter frame (9) is used to collect liquid in the sludge. The separation frame (6) is provided with a shielding mechanism for shielding the discharge port (601). The mobile vehicle (1) is provided with a liquid discharge mechanism for discharging the liquid in the filter frame (9). The separation frame (6) is provided with a vibrator (14) and a first discharge frame (15). The vibrator (14) is used to drive the separation frame (6) to vibrate, and the first discharge frame (15) is used to discharge the soil in the separation frame (6).

2. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 1 is characterized in that: The stirring mechanism comprises a servo motor (301), a hollow tube (302) and a stirring frame (303); the servo motor (301) is mounted on the mixing barrel (2); a hollow tube (302) is rotatably mounted in the mixing barrel (2); an output shaft of the servo motor (301) is connected to the hollow tube (302); and a stirring frame (303) for stirring soil is mounted outside the hollow tube (302).

3. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 2 is characterized in that: The infusion mechanism comprises a first water pump (401), an annular nozzle (402) and a connecting pipe (403); the first water pump (401) is installed on the mobile vehicle (1); the annular nozzle (402) is provided on the mixing barrel (2); and the water outlet end of the first water pump (401) is connected to the annular nozzle (402) via the connecting pipe (403).

4. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 3 is characterized in that: The shielding mechanism comprises a first electric push rod (1201) and a first baffle (1202); the first electric push rod (1201) is mounted on the side of the separation frame (6); the first baffle (1202) is slidably arranged inside the separation frame (6); the first baffle (1202) is used to shield the discharge port (601); the telescopic rod of the first electric push rod (1201) is connected to the first baffle (1202); and the first baffle (1202) is provided with a material through hole (1221) having the same size as the discharge port (601).

5. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 4 is characterized in that: The liquid discharge mechanism comprises a second water pump (1301) and a drainage hose (1302); the second water pump (1301) is installed on the mobile vehicle (1); and the water inlet end of the second water pump (1301) is connected to the filter frame (9) via the drainage hose (1302).

6. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 5 is characterized in that: The invention also comprises a closing mechanism, which comprises a perforated support plate (16), a movable rod (17), a second baffle plate (18) and a second spring (19); a perforated support plate (16) is arranged in the feeding hole (1101) of the pressing block (11); a movable rod (17) is slidably arranged on the perforated support plate (16); the bottom end of the movable rod (17) is connected to the second baffle plate (18); the second baffle plate (18) is used to cover the feeding hole (1101); and a second spring (19) is connected between the bottom of the perforated support plate (16) and the second baffle plate (18).

7. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 6 is characterized in that: The invention also comprises a filtering mechanism, which comprises a filter bucket (20), a second electric push rod (21), an annular baffle (22) and a second discharging frame (23); a filter bucket (20) for filtering mud is installed inside the mixing barrel (2); through holes are arranged at intervals on the side of the hollow tube (302); a second electric push rod (21) is installed at the top of the hollow tube (302); a telescopic rod of the second electric push rod (21) is connected to the annular baffle (22); the annular baffle (22) is located inside the hollow tube (302); the annular baffle (22) is used to cover the through hole; and a second discharging frame (23) is installed on the mobile vehicle (1).

8. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 7 is characterized in that: The invention also comprises a feeding mechanism, which comprises a support frame (24), a feeding frame (25), a driving motor (26), a winding wheel (27), a guide wheel (28) and a connecting rope (29). The mobile vehicle (1) is symmetrically mounted with the support frame (24), the feeding frame (25) is rotatably mounted between the two support frames (24), the support frame (24) is provided with a driving motor (26), the winding wheel (27) is connected to the output shaft of the driving motor (26), the feeding frame (25) is symmetrically rotatably provided with a guide wheel (28), the winding wheel (27) is wound with a connecting rope (29), one end of the connecting rope (29) is connected to the winding wheel (27), and the other end of the connecting rope (29) is connected to the support frame (24) after passing through the guide wheel (28).

9. The leaching equipment for soil pollution remediation in tungsten mining areas according to claim 8, characterized in that: The invention also comprises a screening mechanism, which comprises a screening net (30), a rotating plate (31) and a third discharge frame (32); a screening net (30) for screening soil is arranged in the feeding frame (25); a rotating plate (31) is rotatably arranged on the feeding frame (25); and a third discharge frame (32) is arranged on the feeding frame (25).

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