Split-type contaminated soil treatment apparatus

Abstract

The application discloses a split type contaminated soil treatment equipment, which comprises a first vehicle body and a second vehicle body, a first support is fixedly installed on the upper side of the first vehicle body, an air compressor is installed on the first vehicle body, an air inlet pipe is arranged on the air compressor, the air outlet end of the air compressor is connected with a ventilation pipe, gas injection seats are uniformly arranged on the ventilation pipe, air columns are slidably inserted into the gas injection seats, a driving mechanism and an exhaust mechanism are installed on the first support, and a film burying device is arranged on the second vehicle body.

Description

Technical Field

[0001] The present invention relates to the technical field of gas phase extraction, in particular to split-type contaminated soil treatment equipment. Background Art

[0002] Gas phase extraction technology has the advantages of low treatment cost, strong operability and high treatment efficiency, and is widely used in the treatment of volatile organic compound contaminated soil. In the application process of gas phase extraction technology, gas columns are generally evenly fixed and installed at various locations on the site to repair the contaminated soil at one time, which brings a large workload to the daily operation and management of the entire device. Especially in some larger remediation sites, although the contaminated soil can be repaired, the installation and disassembly of the gas columns are particularly difficult. Entering from one remediation site to another is not only time-consuming and labor-intensive, but also prone to damage. In addition, the extracted gas is not well shielded, causing the extracted gas to drift everywhere, thereby causing secondary pollution. Therefore, a split-type contaminated soil treatment equipment is proposed. Summary of the Invention

[0003] The object of the present invention is to provide a split-type contaminated soil treatment device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a split-type contaminated soil treatment equipment, comprising a first body and a second body that are movable on the upper surface of the contaminated soil, a first bracket being fixedly mounted on the upper side surface of the first body, a ventilation pipe being fixedly mounted on the upper side surface of the first body, an air compressor for blowing gas into the ventilation pipe being fixedly mounted on the first body, gas injection seats being evenly arranged on the ventilation pipe, gas injection seats being slidably plugged with gas columns, the lower ends of the gas columns being pluggable with the contaminated soil, a driving mechanism for driving the gas columns to move up and down and an exhaust mechanism for collecting and purifying the gas discharged from the contaminated soil being mounted on the first bracket, and a film embedding device for embedding a degradable plastic film into the contaminated soil being provided on the second body.

[0005] Preferably, the driving mechanism includes a first screw, which is rotatably connected to the first bracket through a first motor, and a lifting plate is engaged and sleeved on the first screw, and a second motor is fixedly mounted on the side wall of the lifting plate, and the output shaft of the second motor is connected to the upper end of the air column.

[0006] Preferably, the upper end of the gas column is fixedly connected to a cover plate for movably sealing the gas injection seat, a through hole is opened between the gas column and the cover plate for connecting the gas injection seat and the gas column, and a plurality of gas outlet holes are evenly opened on the side wall of the gas column.

[0007] Preferably, spiral blades are provided on the outer side wall of the air column to facilitate the air column to drill into the contaminated soil.

[0008] Preferably, the exhaust mechanism includes a sliding frame slidably connected to the side wall of the first bracket, the side wall of the first bracket is connected to the second screw by a third motor, the side wall of the sliding frame is meshed and sleeved on the second screw, and a plurality of keels are evenly connected to the side wall of the sliding frame, and a first cover cloth for covering the upper side of the contaminated soil is provided between adjacent keels, and the lower side of the keels located at the four corners of the first bracket is rotatably connected to a reinforcing rod, and the lower end of the reinforcing rod is rotatably connected to the side wall of the first bracket, and a gas treatment device is fixedly installed on the upper side surface of the first bracket, and an intake pipe and an exhaust pipe are provided on the gas treatment device, and the intake pipe is inserted into the interior of the first bracket, and an air pump is provided at the connection between the gas treatment device and the exhaust pipe.

[0009] Preferably, the four sides of the first bracket are respectively fixedly connected with a winding device, the winding device includes two fixed seats, a winding shaft is provided between the two fixed seats, the connection between the winding shaft and the fixed seat is connected by a spring, a second cover cloth is wound on the winding shaft, and the outer end of the second cover cloth is fixedly connected to the side wall of the sliding frame.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention uses a driving mechanism to cause the lifting plate to slide downward, and a second motor to drive the air column to rotate, so that the air column is automatically inserted into the contaminated soil. After the air column is inserted into the contaminated soil, the air column, the air injection seat, and the vent pipe are connected, so that the air compressor can inject gas into the contaminated soil through the air column, the air injection seat, and the vent pipe, making the installation and operation of the air column more convenient and the work efficiency high;

[0012] 2. The present invention can bury the plastic film in the contaminated soil through the film embedding device on the second vehicle body, so that the contaminated soil can be divided into multiple small-area unit blocks by the plastic film, and then the first cover and the second cover are opened through the keel and the sliding frame, so that the first cover and the second cover cover the upper side of the contaminated soil, thereby blocking the polluted gas and causing the extracted gas to gather in the first cover and the second cover, and then the extracted gas is purified and filtered by the gas treatment device, thereby avoiding secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the overall structure of the present invention I;

[0014] Figure 2 Schematic diagram II of the overall structure of the present invention;

[0015] Figure 3 Schematic diagram I of the structure of the first vehicle body, the first bracket, the first cover and the second cover of the present invention;

[0016] Figure 4 Schematic diagram II of the structure of the first vehicle body, the first bracket, the first cover and the second cover of the present invention;

[0017] Figure 5 It is a structural schematic diagram of the first vehicle body, the first bracket, the sliding frame, the second screw rod and the second cover cloth of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the first vehicle body, the first bracket, the air column and the lifting plate of the present invention;

[0019] Figure 7 This is a schematic structural diagram of the vent pipe, air compressor, lifting plate, gas injection seat and gas column of the present invention;

[0020] Figure 8 A cross-sectional view of the vent pipe, air compressor, lifting plate, gas injection seat and gas column of the present invention;

[0021] Figure 9 It is a cross-sectional view of the vent pipe, gas injection seat and gas column of the present invention;

[0022] Figure 10 An exploded view of the sliding frame, fixing seat, spring and second cover cloth of the present invention;

[0023] Figure 11 It is a structural schematic diagram of the second vehicle body, the second bracket, the saw blade and the fifth motor of the present invention;

[0024] Figure 12 It is a structural schematic diagram of the second vehicle body, the second bracket, the plastic film and the saw blade of the present invention;

[0025] Figure 13 This is a structural diagram of the second bracket, plastic film, machine base, sealing cover and saw blade of the present invention;

[0026] Figure 14 It is a cross-sectional view of the installation box of the present invention.

[0027] In the figure: 1. Contaminated soil, 2. First vehicle body, 3. First bracket, 4. Ventilation pipe, 5. Air compressor, 501. Inlet pipe, 6. Gas injection seat, 7. Gas column, 701. Cover plate, 702. Through hole, 8. Driving mechanism, 801. First screw, 802. First motor, 803. Lifting plate, 804. Second motor, 9. Exhaust mechanism, 901. Sliding frame, 902. Third motor, 903. Second screw, 904. Keel, 905. First cover cloth, 906. Reinforcement rod, 907. Gas treatment device, 908. Intake pipe, 909. Exhaust pipe, 9010. Vacuum pump, 10. Winding device, 1001. Fixing seat, 1002. Winding shaft, 1003. Spring, 11. Second cover cloth, 12. Second vehicle body, 13. Plastic film, 14. Film embedding device, 1401. Second bracket, 1402. Third screw, 1403. Fourth motor, 1404. Machine base, 1405. Saw blade, 1406. Fifth motor, 1407. Mounting box, 1408. Sealing cover, 1409. Press bolt, 15. Prod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-14 The present invention provides a technical solution: a split-type contaminated soil treatment equipment, comprising a first vehicle body 2 and a second vehicle body 12 that can be moved on the upper surface of the contaminated soil 1, a first bracket 3 is fixedly installed on the upper side of the first vehicle body 2, a ventilation pipe 4 is fixedly installed on the upper side of the first vehicle body 2, an air compressor 5 for blowing gas into the ventilation pipe 4 is fixedly installed on the first vehicle body 2, an air inlet pipe 501 is provided on the air compressor 5, and the air outlet end of the air compressor 5 is connected to the ventilation pipe 4. After the air compressor 5 is started, the air compressor 5 absorbs the external gas through the air inlet pipe 501. After entering, it is then input into the interior of the ventilation pipe 4 from the outlet end. The ventilation pipe 4 is evenly provided with gas injection seats 6, and the gas injection seats 6 are slidably plugged with gas columns 7. The lower end of the gas column 7 is pluggable connected to the contaminated soil 1. The first bracket 3 is equipped with a driving mechanism 8 for driving the gas column 7 to move up and down, and an exhaust mechanism 9 for collecting and purifying the gas discharged from the contaminated soil 1. The second body 12 is provided with a film embedding device 14 for embedding a degradable plastic film 13 into the contaminated soil 1, so that the contaminated soil 1 is divided into multiple small-area unit blocks by the plastic film 13.

[0030] like Figure 1 、 11 -As shown in Figure 13, in order to insert the plastic film 13 into the contaminated soil 1 so as to divide the contaminated soil 1 into a plurality of small unit blocks so as to treat the contaminated soil 1 in batches, the film embedding device 14 includes a second bracket 1401, and the second bracket 1401 is internally rotatably connected to a third screw 1402, and the third screw 1402 is driven to rotate by a fourth motor 1403. The third screw 1402 is engaged with a base 1404, and the fourth motor 1403 is fixedly mounted on the side wall of the second bracket 1401, and the output shaft of the fourth motor 1403 is connected to the upper end of the third screw 1402. When the fourth motor 1403 is started, the output shaft of the fourth motor 1403 drives the third screw 1402 to rotate. When the third screw 1402 is driven to rotate, the fourth motor 1403 is driven to rotate. After the rod 1402 rotates, the machine base 1404 moves upward or downward, and the lower end of the machine base 1404 is rotatably connected to a saw blade 1405 for cutting the contaminated soil 1, and the saw blade 1405 is driven to rotate by the fifth motor 1406. The fifth motor 1406 is fixedly mounted on the side wall of the machine base 1404, and the output shaft of the fifth motor 1406 is connected to the rotating shaft of the saw blade 1405. When the fifth motor 1406 is started, the output shaft of the fifth motor 1406 will drive the saw blade 1405 to rotate, and the rear side wall of the machine base 1404 is fixedly connected to an installation box 1407 for placing a reel of plastic film 13, and the rear side wall of the installation box 1407 is rotatably connected to a sealing cover 1408, and the outer end of the plastic film 13 is pulled out from one side of the sealing cover 1408, as shown in FIG. Figure 14 As shown, a pressing bolt 1409 is engaged with the mounting box 1407. The lower end of the pressing bolt 1409 is hollow and fits with the center roller of the plastic film 13. The plastic film 13 can be installed and removed by rotating the pressing bolt 1409.

[0031] like Figure 1As shown, the first vehicle body 2 is placed on the contaminated soil 1, and then the second vehicle body 12 is moved onto the contaminated soil 1, and the fourth motor 1403 is started, causing the third screw 1402 to rotate and drive the machine base 1404 to slide downward, and at the same time the fifth motor 1406 is started, causing the fifth motor 1406 to drive the saw blade 1405 to rotate, and by moving the second vehicle body 12, the saw blade 1405 cuts the contaminated soil 1, and at the same time the plastic film 13 inside the mounting box 1407 is unfolded into the sawed groove as the second vehicle body 12 moves, thereby cutting the contaminated soil 1 through the plastic film. The film 13 separates the contaminated soil 1 at the first vehicle body 2 (after the plastic film 13 is unfolded and laid in the groove, it does not need to be taken out and can degrade in the soil by itself). At the same time, in order to smoothly unfold the plastic film 13, a thorn rod 15 is wrapped around the outer end of the plastic film 13. The thorn rod 15 can fix the outer end of the plastic film 13, and then the lower end of the thorn rod 15 is inserted into the contaminated soil 1, so that the end of the plastic film 13 can be fixed. At this time, after the plastic film 13 moves with the second vehicle body 12, the plastic film 13 will be smoothly unfolded.

[0032] like Figure 5 As shown, in order to drive the air column 7 to slide up and down so that the air column 7 can be inserted into or extracted from the contaminated soil 1, specifically, the driving mechanism 8 includes a first screw 801, which is rotatably connected to the first bracket 3 through a first motor 802, and a lifting plate 803 is meshed and sleeved on the first screw 801. The four corners of the lifting plate 803 are slidably sleeved with guide rods, which can ensure that the lifting plate 803 slides up and down smoothly. A second motor 804 is fixedly installed on the side wall of the lifting plate 803, and the output shaft of the second motor 804 is connected to the upper end of the air column 7. The second motor 804 is fixedly installed on the side wall of the lifting plate 803, and the output shaft of the second motor 804 is fixedly connected to the upper end of the air column 7. When the second motor 804 is started, the second motor 804 will drive the air column 7 to rotate.

[0033] like Figure 8-9 As shown, in order to inject gas into the contaminated soil 1, specifically, the upper end of the gas column 7 is fixedly connected to a cover plate 701 for movable sealing of the gas injection seat 6, as shown in FIG. Figure 9 As shown, a sealing ring is provided on the upper side of the gas injection seat 6. When the cover plate 701 is covered on the gas injection seat 6, the sealing ring seals the connection between the cover plate 701 and the gas injection seat 6 to prevent gas leakage at the connection between the cover plate 701 and the gas injection seat 6. A through hole 702 is opened between the gas column 7 and the cover plate 701 for connecting the gas injection seat 6 and the gas column 7. A plurality of gas outlet holes are evenly opened on the side wall of the gas column 7.

[0034] When the air column 7 is inserted into the contaminated soil 1 (as Figure 9As shown, when the air column 7 slides downward to the lowest state), the cover plate 701 will cover the upper end of the air injection seat 6. In this way, after the gas inside the vent pipe 4 enters the air injection seat 6, the gas will enter the interior of the air column 7 through the through hole 702. The gas entering the interior of the air column 7 will be injected into the interior of the contaminated soil 1 from the air outlet. When the gas flows through the contaminated soil 1, it desorbs and entrains volatile and semi-volatile organic pollutants in the soil pores, and the gas takes them away, thereby achieving the purpose of treating and purifying the soil.

[0035] like Figure 7 As shown, in order to facilitate the drilling of the air column 7 into the contaminated soil 1 , specifically, spiral blades are provided on the outer wall of the air column 7 to facilitate the drilling of the air column 7 into the contaminated soil 1 .

[0036] like Figure 2-3As shown, in order to cover the upper side of the contaminated soil 1 and prevent the extracted gas in the contaminated soil 1 from escaping from the upper side, specifically, the exhaust mechanism 9 includes a sliding frame 901 slidably connected to the side wall of the first bracket 3, and the side wall of the first bracket 3 is connected to the second screw 903 through the rotation of the third motor 902. The third motor 902 is fixedly mounted on the side wall of the first bracket 3, and the output shaft of the third motor 902 is connected to one end of the second screw 903. When the third motor 902 is started, the output shaft of the third motor 902 will carry the second screw The rod 903 rotates, and the side wall of the sliding frame 901 is engaged and sleeved on the second screw rod 903. A plurality of keels 904 are evenly rotated and connected on the side wall of the sliding frame 901. A first cover cloth 905 for covering the upper side of the contaminated soil 1 is provided between adjacent keels 904. The first cover cloth 905 can be folded and opened along with the keels 904. After opening, the first cover cloth 905 covers the contaminated soil 1. The gas extracted from the inside of the contaminated soil 1 will be concentrated under the first cover cloth 905 to prevent the extracted gas from floating around. The lower side of the keel 904 at the four corners of the frame 3 is rotatably connected to a reinforcing rod 906, and the lower end of the reinforcing rod 906 is rotatably connected to the side wall of the first bracket 3. The reinforcing rod 906 supports the keel 904, so that the keel 904 can better support the first cover 905. A gas treatment device 907 is fixedly installed on the upper side of the first bracket 3. The gas treatment device 907 is provided with an intake pipe 908 and an exhaust pipe 909. The intake pipe 908 is inserted into the interior of the first bracket 3. The gas treatment device 907 An exhaust pump 9010 is provided at the connection with the exhaust pipe 909, and the interior of the gas treatment device 907 can be filled with activated carbon. When the exhaust pump 9010 is started, the suction pipe 908 draws the gas extracted from the contaminated soil 1 into the interior of the gas treatment device 907, and the activated carbon adsorbs the harmful organic matter in the gas. The treated gas is then discharged from the exhaust pump 9010 into the air (or collected by external equipment). The activated carbon in the gas treatment device 907 is replaced according to actual usage to ensure that the treated gas meets the emission standards.

[0037] like Figure 5 、 10As shown, in order to further cover the upper side of the contaminated soil 1, specifically, the four sides of the first bracket 3 are respectively fixedly connected with a winding device 10, and the winding device 10 includes two fixing seats 1001. A winding shaft 1002 is provided between the two fixing seats 1001. The connection between the winding shaft 1002 and the fixing seats 1001 is connected by a spring 1003. One end of the spring 1003 is fixedly connected to the side wall of the fixing seat 1001, and the other end of the spring 1003 is fixedly connected to the side wall of the winding shaft 1002. A second cover cloth 11 is wound around the winding shaft 1002, and the outer end of the second cover cloth 11 is fixedly connected to the side wall of the sliding frame 901.

[0038] like Figure 4 As shown, when the sliding frame 901 is at the uppermost side of the first bracket 3, the second cover cloth 11 is completely rolled up on the winding shaft 1002. When the sliding frame 901 slides downward, the sliding frame 901 pulls the end of the second cover cloth 11, causing the second cover cloth 11 to unfold, and then cover the side of the first bracket 3 (as shown in FIG. Figure 5 As shown), when the sliding frame 901 slides to the lowermost side of the first bracket 3, the second cover cloth 11 is fully unfolded (as shown in FIG. Figure 3 As shown), the side of the first bracket 3 can be covered, so that the extracted gas is gathered in the first cover cloth 905 and the second cover cloth 11, preventing the extracted gas from floating around, and when the second cover cloth 11 is unfolded, the winding shaft 1002 rotates to obtain the spring 1003 to twist. When the sliding frame 901 slides upward, the torsion of the spring 1003 causes the winding shaft 1002 to rotate in the opposite direction and roll up the second cover cloth 11.

[0039] Working principle: When in use, the first vehicle body 2 and the second vehicle body 12 are placed on the contaminated soil 1, and then the fourth motor 1403 is started, causing the third screw 1402 to rotate and drive the machine base 1404 to slide downward, and at the same time the fifth motor 1406 is started, causing the fifth motor 1406 to drive the saw blade 1405 to rotate, prompting the saw blade 1405 to be inserted downward into the contaminated soil 1, and then the second vehicle body 12 is moved, causing the saw blade 1405 to saw the contaminated soil 1, and at the same time the plastic film 13 inside the mounting box 1407 is unfolded into the sawed groove as the second vehicle body 12 moves, so that the contaminated soil 1 at the first vehicle body 2 is separated by the plastic film 13 (such as Figure 1 As shown), the air column 7 is then inserted into the contaminated soil 1 through the driving mechanism 8, and the third motor 902 is started to rotate the second screw 903, thereby driving the sliding frame 901 to slide downward, causing the first cover 905 and the second cover 11 to unfold (as shown). Figure 2As shown), the upper side of the contaminated soil 1 is covered. After the air compressor 5 is started, the air compressor 5 injects gas into the contaminated soil 1. The gas entering the contaminated soil 1 will desorb and entrain volatile and semi-volatile organic pollutants in the pores of the contaminated soil 1, and the gas will carry them away to the first cover cloth 905 and the second cover cloth 11. By starting the vacuum pump 9010, the gas in the first cover cloth 905 and the second cover cloth 11 is sucked into the interior of the gas treatment device 907 through the suction pipe 908. The gas is processed by the gas treatment device 907 and then discharged through the exhaust pipe 909, thereby achieving the purpose of soil treatment and purification.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A split-type contaminated soil treatment device, comprising a first vehicle body (2) and a second vehicle body (12), characterized in that: A first bracket (3) is fixedly mounted on the upper side of the first vehicle body (2), an air compressor (5) is mounted on the first vehicle body (2), an air inlet pipe (501) is provided on the air compressor (5), and an air outlet end of the air compressor (5) is connected to the vent pipe (4), after the air compressor (5) is started, the air compressor (5) sucks in external air through the air inlet pipe (501), and then inputs the external air into the vent pipe (4) from the air outlet end, the vent pipe (4) is evenly provided with air injection seats (6), an air column (7) is slidably plugged into the air injection seat (6), and a driving mechanism for driving the air column (7) to move up and down is mounted on the first bracket (3). The invention relates to a vehicle body (12) comprising a driving mechanism (8) and an exhaust mechanism (9), wherein a film embedding device (14) is provided on the second vehicle body (12) for embedding a degradable plastic film (13) into the contaminated soil (1), so as to divide the contaminated soil (1) into a plurality of unit blocks of small area so as to treat the contaminated soil (1) in batches, wherein the film embedding device (14) comprises a second bracket (1401), wherein a third screw (1402) is rotatably connected to the inside of the second bracket (1401), wherein the third screw (1402) is engaged with a base (1404), and an output shaft of a fourth motor (1403) is connected to the upper end of the third screw (1402). When the first bracket (1401) is started, the third screw (1402) is engaged with the base (1404). After the four motors (1403) are turned on, the output shaft of the fourth motor (1403) drives the third screw (1402) to rotate. When the third screw (1402) rotates, the machine base (1404) moves upward or downward. The lower end of the machine base (1404) is rotatably connected to a saw blade (1405) for cutting contaminated soil (1). The saw blade (1405) is driven to rotate by the fifth motor (1406). A mounting box (1407) for placing a plastic film (13) reel is fixedly connected to the rear side wall of the machine base (1404). A sealing cover (1408) is rotatably connected to the rear side wall of the mounting box (1407). The outer end of the plastic film (13) is pulled out from one side of the sealing cover (1408), and a pressing bolt (1409) is engaged and connected on the installation box (1407). The lower end of the pressing bolt (1409) is hollow and matches the central roller of the plastic film (13). The installation and removal of the plastic film (13) are completed by rotating the pressing bolt (1409). The driving mechanism (8) includes a first screw (801), and a lifting plate (803) is engaged and sleeved on the first screw (801). A second motor (804) is fixedly installed on the side wall of the lifting plate (803). The second motor (804) drives the air column (7) to rotate. A gas processing device (907) is fixedly mounted on the upper side of the first bracket (3), and an air intake pipe (908) and an air exhaust pipe (909) are provided on the gas processing device (907). The air intake pipe (908) is inserted into the interior of the first bracket (3), and an air pump (9010) is provided at the connection between the gas processing device (907) and the air exhaust pipe (909). The air exhaust mechanism (9) comprises a sliding frame (901) slidably connected to the side wall of the first bracket (3). The side wall of the first bracket (3) is connected to the side wall of the first bracket (3) by a third motor ( 902) is rotatably connected to a second screw rod (903), the side wall of the sliding frame (901) is meshed and sleeved on the second screw rod (903), a plurality of keels (904) are evenly rotatably connected to the side wall of the sliding frame (901), a first covering cloth (905) for covering the upper side of the contaminated soil (1) is provided between adjacent keels (904), and the lower side of the keels (904) located at the four corners of the first bracket (3) is rotatably connected to a reinforcing rod (906), and the lower end of the reinforcing rod (906) is rotatably connected to the side wall of the first bracket (3); The first vehicle body (2) is placed on the contaminated soil (1), and then the second vehicle body (12) is moved onto the contaminated soil (1), and the fourth motor (1403) is started, causing the third screw (1402) to rotate and then drive the machine base (1404) to slide downward, and at the same time, the fifth motor (1406) is started, causing the fifth motor (1406) to drive the saw blade (1405) to rotate, and by moving the second vehicle body (12), the saw blade (1405) will move the contaminated soil (1) The plastic film (13) inside the mounting box (1407) is sawn open, and at the same time, the plastic film (13) inside the mounting box (1407) is unfolded into the sawn groove as the second vehicle body (12) moves, thereby separating the contaminated soil (1) at the first vehicle body (2) through the plastic film (13). The four corners of the lifting plate (803) are slidably sleeved with guide rods, and the outer end of the plastic film (13) is wrapped with a thorn rod (15), which can fix the outer end of the plastic film (13). The upper end of the air column (7) A fixedly connected cover plate (701) is provided on the upper side of the gas injection seat (6). When the cover plate (701) is covered on the gas injection seat (6), the sealing ring seals the connection between the cover plate (701) and the gas injection seat (6). A through hole (702) is provided between the gas column (7) and the cover plate (701) for connecting the gas injection seat (6) and the gas column (7). A plurality of gas outlet holes are evenly provided on the side wall of the gas column (7). The four sides of the first bracket (3) are provided with a plurality of gas outlet holes. A winding device (10) is fixedly connected to each of the two fixing seats (1001), wherein the winding device (10) comprises two fixing seats (1001), a winding shaft (1002) is provided between the two fixing seats (1001), the connection between the winding shaft (1002) and the fixing seats (1001) is connected via a spring (1003), a second cover cloth (11) is wound around the winding shaft (1002), and the outer end of the second cover cloth (11) is fixedly connected to the side wall of the sliding frame (901).

Images