Soil remediation device and soil remediation method

Abstract

The invention relates to the technical field of soil remediation, and discloses a soil remediation device and a soil remediation method.The key point of the technical scheme is that the soil remediation device comprises a remediation box body; the repairing platform is arranged in the repairing box body, a heating part used for generating heat is arranged at the bottom of the repairing platform, and the repairing platform conducts the heat; the feeding hole is formed in one side of the repairing box body and is connected with a feeding machine; the preheating box body is arranged in the repairing box body, and a plurality of crushing rollers are arranged in the preheating box body; the vibration frame body is arranged at the bottom of the preheating box body, and a plurality of release plates are arranged in the vibration frame body; according to the device, the problems of blockage and low efficiency when high-water-content or high-viscosity soil is treated in a traditional technology are solved by optimizing multiple functions of preheating, crushing, vibrating, releasing, paving and the like. The device is reasonable in structural design, efficient in treatment process and capable of being widely applied to pollution remediation of various complex soil environments.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation, and in particular to a soil remediation device and a soil remediation method. Background Art

[0002] With the rapid development of industrialization and urbanization, a large amount of industrial waste, agricultural chemicals and other pollutants generated by human activities have entered the soil environment, resulting in increasingly serious soil pollution problems. Pollutants in the soil not only destroy the ecological function of the soil, but also threaten human health and ecological security through the food chain, groundwater and other pathways. Therefore, soil remediation has become an important research direction in the field of environmental protection.

[0003] Thermal remediation technology is an effective method for soil pollution control, especially suitable for the removal of organic pollutants (such as petroleum hydrocarbons, pesticides, volatile organic compounds) and certain inorganic pollutants (such as mercury, lead, etc.). This technology separates, decomposes or volatilizes pollutants from the soil through high-temperature treatment, thereby achieving the purpose of soil purification.

[0004] However, for soils with strong viscosity, the heat conduction efficiency is low due to the compact particles, and the heating is uneven. This may lead to insufficient temperature in some areas, and the pollutants cannot be fully decomposed or volatilized, thus affecting the overall remediation efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a soil remediation device and a soil remediation method, aiming to alleviate the above problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A soil remediation device, comprising: Repair the box; A repair platform is arranged in the repair box, a heating part for generating heat is arranged at the bottom of the repair platform, and the repair platform conducts heat; A feed port is provided on one side of the repair box and is connected to a feeder; A preheating box body is arranged in the repair box body, and a plurality of crushing rollers are arranged in the preheating box body; A vibration frame body is arranged at the bottom of the preheating box body, and a plurality of release plates are arranged in the vibration frame body; A moving component disposed between the repair box and the preheating box, used for moving the preheating box along the repair box; A rotating component provided between the repair box and the preheating box, used to rotate the plurality of crushing rollers when the preheating box moves, and the rotating component can also vibrate the vibration frame up and down when the preheating box moves; When the preheating box moves to a preset position along the repair box, the plurality of release plates can rotate from right to left in sequence, opening the vibration frame to release the soil onto the repair platform.

[0007] Preferably, the heating part comprises two heat conducting plates arranged at the bottom of the repair platform, and a heating wire is arranged between the two heat conducting plates.

[0008] Preferably, a repair groove is provided on the top of the repair platform for receiving the soil released from the preheating box body, a plurality of heat conducting fins are provided on the top of the repair platform, and a plurality of heat transfer fins are provided on both sides of the preheating box body.

[0009] Preferably, the rotating component includes slide rails connected to both sides of the repair box, the preheating box is slidably connected to both sides of the repair box, the slide rails are connected to a rack a, and the crushing roller is connected to a gear a meshing with the rack a.

[0010] Preferably, the rotating component also includes a connecting plate connected to the middle crushing roller, a connecting rod is slidably connected to the preheating box body, a connecting ball is connected to the top of the connecting rod, an arc-shaped groove is opened on the connecting plate, the connecting ball is sleeved in the arc-shaped groove, and one end of the connecting rod is connected to the vibration frame.

[0011] Preferably, a rack b is connected to the bottom of the rack a, a connecting shaft is connected to one side of the release plate, the connecting shaft passes through the vibration frame and the preheating box body and is slidably connected to the preheating box body, and one end of the connecting shaft is connected to a gear b adapted to the rack b.

[0012] Preferably, a spring is connected between the gear b and the vibration frame, and a plurality of baffles are connected to the top of the vibration frame.

[0013] Preferably, the moving component includes a screw rotatably connected to the repair box, the preheating box is threadedly connected to the screw, and the repair box is provided with a motor, and the drive shaft of the motor is connected to the screw.

[0014] Preferably, a discharge port is provided on one side of the repair box, and a discharge frame is slidably connected to the repair groove.

[0015] A soil remediation method, applicable to any one of the soil remediation devices described above, comprises the following specific steps: Step 1: Feed the soil into the preheating box through the feed port, and move the preheating box. The crushing roller rotates and combines with the vibration of the vibration frame to crush and heat the soil, and initially volatilize the water and low-boiling point pollutants; Step 2: After the preheating box moves to the designated position, the release plates rotate in sequence to release the soil evenly onto the repair platform; Step 3: The heating unit transfers heat to the remediation platform through the heat conduction plate. The soil decomposes organic pollutants and volatilizes low-boiling-point pollutants at high temperatures. Step 4: After the repair is completed, the soil is discharged from the discharge port through the discharge frame.

[0016] In summary, the present invention mainly has the following beneficial effects: By setting up a heating unit and a preheating box, this device realizes efficient integrated operation from pretreatment to high-temperature remediation during the soil remediation process. The high-temperature heat provided by the heating unit, through the conduction of the remediation platform and the thermal field effect of the cavity in the remediation box, not only ensures the rapid decomposition and volatilization of organic pollutants in the soil, but also significantly improves the efficiency of thermal energy utilization. At the same time, the preheating box fully breaks, loosens and preheats the soil through the synergistic effect of the crushing roller and the vibration frame, creating ideal conditions for subsequent high-temperature remediation.

[0017] When the preheating box moves to the preset position, the release plate rotates in sequence to evenly spread the pretreated soil on the repair platform, avoiding the problem of soil accumulation or uneven distribution. This homogenization treatment not only effectively increases the contact area between the soil and the high-temperature platform, but also strengthens the uniform transfer of heat, ensuring that every part of the soil can be fully repaired.

[0018] In general, the device overcomes the blockage and inefficiency problems of traditional technologies in treating high-water content or high-viscosity soils by optimizing multiple functions such as preheating, crushing, vibration, release and paving. Its reasonable structural design and efficient treatment process can be widely used in pollution remediation of various complex soil environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the repair box structure of the present invention; Figure 3 is another schematic diagram of the repair box structure of the present invention; Figure 4 It is a schematic diagram of the heating part structure of the present invention; Figure 5 It is a schematic diagram of the structure of the preheating box body of the present invention; Figure 6 is another schematic diagram of the preheating box structure of the present invention; Figure 7 It is a schematic diagram of the vibration frame structure of the present invention; Figure 8 It is a schematic diagram of the connection disk structure of the present invention; Fig. 9 It is another schematic diagram of the connection plate structure of the present invention.

[0020] Reference numerals: 100, repair box; 101, repair platform; 102, heating part; 103, feed port; 104, preheating box; 105, crushing roller; 106, vibration frame; 107, release plate; 108, heat conduction plate; 109, heating wire; 200, repair groove; 201, heat conducting fin; 202, heat transfer fin; 300, slide rail; 301, rack a; 302, gear a; 303, connecting plate; 304, connecting rod; 305, connecting ball; 306, arc-shaped slide groove; 400, rack b; 401, connecting shaft; 402, gear b; 403, spring; 404, baffle; 500, lead screw; 501, motor; 502, discharge port; 503, discharge frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] refer to Figure 1-Figure 9 , a soil remediation device, comprising: Repair cabinet 100; A repair platform 101 is provided in the repair box 100, a heating portion 102 for generating heat is provided at the bottom of the repair platform 101, and the repair platform 101 conducts heat; A feed port 103 is provided on one side of the repair box 100 and is connected to a feeder; A preheating box 104 is disposed in the repair box 100, and a plurality of crushing rollers 105 are disposed in the preheating box 104; A vibration frame 106 is disposed at the bottom of the preheating box 104, and a plurality of release plates 107 are disposed in the vibration frame 106; A moving component disposed between the repair box 100 and the preheating box 104, used to move the preheating box 104 along the repair box 100; A rotating component disposed between the repair box 100 and the preheating box 104, used to rotate the plurality of crushing rollers 105 when the preheating box 104 moves, and the rotating component can also vibrate the vibration frame 106 up and down when the preheating box 104 moves; When the preheating box 104 moves to a preset position along the repair box 100, the plurality of release plates 107 can rotate from right to left in sequence, opening the vibration frame 106 to release the soil onto the repair platform 101; By providing the heating part 102, when in use, the heat generated by the operation of the heating part 102 can be conducted to the repair platform 101, so that the temperature of the repair platform 101 reaches a high temperature that can be used to decompose and volatilize organic pollutants. The temperature of the repair platform 101 can also be directed to the cavity in the repair box 100 and diffused in the repair box. Specifically, a feeder for releasing and pushing the soil to be repaired can be used to put the soil to be repaired into the preheating box 104 through the feed port 103. At this time, the position of the preheating box 104 can be moved by the moving parts. When the preheating box 104 moves, the rotating parts can rotate the multiple crushing rollers 105. The multiple crushing rollers 105 fully crush the soil and break down larger soil lumps into smaller particles. At the same time, the vibration frame 106 can vibrate up and down with the movement of the preheating box 104 to loosen the soil particles. This process can be used to preheat the soil in conjunction with the heat in the space of the repair box 100, so that the soil temperature gradually rises and some water and low-boiling point pollutants are initially volatilized. Through the combined action of the rotation of the crushing roller 105 and the vibration frame 106, the soil particles are not only effectively dispersed, but also fully contact the heat diffused in the repair box 100 to ensure uniform heat transfer. This multi-level preheating treatment method creates better physical and chemical conditions for subsequent high-temperature repair. When the preheating box 104 moves to the specified position, the multiple release plates 107 in the vibration frame 106 will rotate in sequence to evenly release the treated soil onto the repair platform 101. The heating part 102 at the bottom of the repair platform 101 has now conducted heat to the surface of the platform, causing it to reach a high temperature state. The high-temperature repair platform 101 can not only quickly decompose organic pollutants in the soil, but also effectively remove volatile and semi-volatile pollutants through volatilization and decomposition. At the same time, the heat released by the repair platform 101 will continue to be directed to the cavity in the repair box 100, forming an environment filled with high-temperature gas. This thermal field effect can further enhance the removal effect of pollutants in the soil. In addition, when the preheating box 104 moves to the preset position, the multiple release plates 107 set will rotate from right to left in sequence, and cooperate with the movement of the preheating box 104 to evenly release the treated soil and spread it on the repair platform 101. Such a design can not only avoid the problem of soil accumulation or uneven distribution, but also ensure that each part of the soil can fully contact the high-temperature surface of the repair platform 101, thereby achieving more efficient heating and pollutant decomposition. Through the sequential rotation and paving action of the release plate 107, the soil remains evenly dispersed during the release process, which is particularly critical for soils with high water content or strong viscosity. On the one hand, the dispersion effect during the release process further reduces the thermal inertia of the soil and improves the heat conduction efficiency; on the other hand, this paving design allows the high temperature effect of the repair platform 101 to fully cover each part of the soil, ensuring that the decomposition and volatilization of pollutants are more thorough.

[0023] As a further solution of the present invention, the heating part 102 includes two heat conducting plates 108 disposed at the bottom of the repair platform 101, and a heating wire 109 is disposed between the two heat conducting plates 108; By setting the heating part 102, the device uses two heat conducting plates 108 arranged at the bottom of the repair platform 101, and arranges the electric heating wire 109 between the heat conducting plates 108 to form an efficient heat conduction structure. When working, the electric heating wire 109 quickly generates high temperature after being energized, and the heat is evenly conducted to the surface of the repair platform 101 through the heat conducting plates 108, thereby providing stable and efficient heating conditions for repairing the soil.

[0024] As a further solution of the present invention, a repair groove 200 is provided on the top of the repair platform 101 for receiving the soil released by the preheating box 104, a plurality of heat transfer fins 201 are provided on the top of the repair platform 101, and a plurality of heat transfer fins 202 are provided on both sides of the preheating box 104; By providing the heat-conducting fins 201, the multiple heat-conducting fins 201 on the top of the repair platform 101 increase the surface area, accelerate the conduction of heat, and effectively improve the uniformity of heat distribution on the surface of the repair platform 101. The presence of the heat-conducting fins 201 enables the soil to quickly and evenly contact the repair platform 101, thereby ensuring that each part of the soil can fully absorb heat and improve the repair effect. At the same time, the multiple heat transfer fins 202 on both sides of the preheating box 104 further enhance the heat transfer. The heat transfer fins 202 enable the soil to more efficiently exchange heat with the surrounding heat sources during the preheating process, thereby preheating the soil in a short time.

[0025] As a further solution of the present invention, the rotating component includes a slide rail 300 connected to both sides of the repair box 100, the preheating box 104 is slidably connected to both sides of the repair box 100, the slide rail 300 is connected to a rack a301, and the crushing roller 105 is connected to a gear a302 meshing with the rack a301; By setting the slide rail 300, the slide rail 300 connects the preheating box 104 to both sides of the repair box 100 by sliding, so that the preheating box 104 can be smoothly moved to the preset position along the slide rail 300. During the movement of the preheating box 104, the meshing action of the rack a301 and the gear a302 can drive the rotation of the crushing roller 105, ensuring that the crushing roller 105 maintains continuous and stable operation during the soil treatment process. This design ensures that the crushing roller 105 can efficiently and fully crush the soil, decompose larger soil lumps, and refine the soil particles, thereby improving the contact effect between the soil and the repair platform 101, creating more ideal physical conditions for the subsequent repair process.

[0026] As a further solution of the present invention, the rotating component further includes a connecting plate 303 connected to a middle crushing roller 105, a connecting rod 304 is slidably connected to the preheating box body 104, a connecting ball 305 is connected to the top of the connecting rod 304, an arc-shaped chute 306 is provided on the connecting plate 303, the connecting ball 305 is sleeved in the arc-shaped chute 306, and one end of the connecting rod 304 is connected to the vibration frame 106; By setting the connection disk 303, the connection disk 303 can rotate along with the crushing roller 105 when it rotates, and the design of the arc chute 306 enables the connection ball 305 to slide along the track of the arc chute 306 when the connection disk 303 rotates, so that the connection ball 305, the connecting rod 304 and the vibration frame 106 can move up and down. The vibration frame 106 generates vibration as the preheating box 104 moves, and this vibration can loosen soil particles, increase the contact surface of the soil, make it easier to absorb heat and effectively process it. Thereby improving the heat transfer efficiency during the preheating process, and also helping to crush the soil.

[0027] As a further solution of the present invention, a rack b400 is connected to the bottom of the rack a301, a connecting shaft 401 is connected to one side of the release plate 107, the connecting shaft 401 passes through the vibration frame 106 and the preheating box body 104 and is slidably connected to the preheating box body 104, and one end of the connecting shaft 401 is connected to a gear b402 adapted to the rack b400; By setting the gear b402, when the preheating box body 104 moves to the preset position, the gear a302 is disengaged from the rack a301, and the rightmost gear b402 is engaged with the rack b400. As the preheating box body 104 continues to move, multiple gears b402 can rotate in sequence and release the soil in the preheating box body 104. The soil release process not only ensures the uniform distribution of the soil, but also avoids the accumulation or uneven distribution of the soil, so that each part of the soil can fully contact the high-temperature surface of the repair platform 101, thereby enhancing the soil's heat absorption capacity and processing efficiency, and optimizing the repair process.

[0028] As a further solution of the present invention, a spring 403 is connected between the gear b402 and the vibration frame 106, and a plurality of baffles 404 are connected to the top of the vibration frame 106; By setting the baffle 404, since the vibration frame 106 needs to slide on the preheating box 104, there will be a necessary sliding opening on the preheating box 104, and the baffle 404 can close the sliding opening to prevent the soil from accidentally leaking from the opening when the vibration frame 106 vibrates up and down. In addition, the spring 403 is set to limit the angle between the gear b402 and the release plate 107 to avoid the problem of accidental rotation of the release plate 107 due to the vibration of the vibration frame 106 during the unnecessary rotation of the release plate 107, thereby releasing the soil in advance. Ensure that each release of the soil can be accurately executed at the predetermined time. Through this design, the cooperation between the baffle 404 and the spring 403 effectively prevents the disorderly leakage or release of the soil during the treatment process, thereby improving the stability and controllability of the entire soil remediation process, and ensuring that the remediation work can proceed smoothly according to the established procedures.

[0029] As a further solution of the present invention, the moving part includes a lead screw 500 rotatably connected to the repair box 100, the preheating box 104 is threadedly connected to the lead screw 500, and the repair box 100 is provided with a motor 501, and the driving shaft of the motor 501 is connected to the lead screw 500; By providing a motor 501, the motor 501 drives the lead screw 500 to rotate, thereby driving the preheating box 104 to move smoothly along the sliding track in the repair box 100. This design can provide precise movement control, so that the preheating box 104 can be adjusted according to a predetermined path and position, ensuring the efficiency and consistency of the soil treatment process.

[0030] As a further solution of the present invention, a discharge port 502 is provided on one side of the repair box 100, and a discharge frame 503 is slidably connected to the repair groove 200; By setting the material discharge frame 503 , after the soil is laid in the repair groove 200 for a preset time and the repair work on the soil is completed, the material discharge frame 503 can be slid to push the soil out of the discharge port 502 for release.

[0031] A soil remediation method, applicable to any one of the soil remediation devices mentioned above, comprising the following specific steps: Step 1: Feed the soil into the preheating box 104 through the feed port 103, and move the preheating box 104, the crushing roller 105 rotates and combines with the vibration of the vibration frame 106 to crush and heat the soil, and initially volatilize the water and low-boiling point pollutants; Step 2: After the preheating box 104 moves to the designated position, the release plate 107 rotates in sequence to release the soil evenly onto the repair platform 101; Step 3: The heating unit 102 conducts heat to the repair platform 101 through the heat conducting plate 108, and the soil decomposes organic pollutants and volatilizes low boiling point pollutants at high temperature; Step 4: After the repair is completed, the soil is discharged from the discharge port 502 through the discharge frame 503 .

[0032] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil remediation device and a soil remediation method, characterized in that: include: Repair the box (100); A repair platform (101) is arranged in the repair box (100), a heating portion (102) for generating heat is arranged at the bottom of the repair platform (101), and the repair platform (101) conducts heat; A feed port (103) is provided on one side of the repair box (100) and is connected to a feed machine; A preheating box (104) is arranged in the repair box (100), wherein a plurality of crushing rollers (105) are arranged in the preheating box (104); A vibration frame (106) is arranged at the bottom of the preheating box (104), wherein a plurality of release plates (107) are arranged in the vibration frame (106); A moving component provided between the repair box (100) and the preheating box (104), used for moving the preheating box (104) along the repair box (100); a rotating component disposed between the repair box (100) and the preheating box (104), used to rotate the plurality of crushing rollers (105) when the preheating box (104) moves, and the rotating component can also vibrate the vibration frame (106) up and down when the preheating box (104) moves; When the preheating box (104) moves along the repair box (100) to a preset position, the plurality of release plates (107) can rotate in sequence from right to left to open the vibration frame (106) to release the soil onto the repair platform (101).

2. A soil remediation device and soil remediation method according to claim 1, characterized in that: The heating part (102) comprises two heat conducting plates (108) arranged at the bottom of the repair platform (101), and a heating wire (109) is arranged between the two heat conducting plates (108).

3. A soil remediation device and soil remediation method according to claim 1, characterized in that: A repair groove (200) is provided on the top of the repair platform (101) for receiving soil released by the preheating box (104); a plurality of heat conducting fins (201) are provided on the top of the repair platform (101); and a plurality of heat transfer fins (202) are provided on both sides of the preheating box (104).

4. A soil remediation device and soil remediation method according to claim 1, characterized in that: The rotating component comprises a slide rail (300) connected to two sides of the interior of the repair box (100); the preheating box (104) is slidably connected to two sides of the repair box (100); a rack a (301) is connected to the slide rail (300); and a gear a (302) meshing with the rack a (301) is connected to the crushing roller (105).

5. A soil remediation device and soil remediation method according to claim 1, characterized in that: The rotating component also includes a connecting plate (303) connected to the middle crushing roller (105); a connecting rod (304) is slidably connected to the preheating box (104); a connecting ball (305) is connected to the top of the connecting rod (304); an arc-shaped sliding groove (306) is formed on the connecting plate (303); the connecting ball (305) is sleeved in the arc-shaped sliding groove (306); and one end of the connecting rod (304) is connected to the vibration frame (106).

6. A soil remediation device and soil remediation method according to claim 4, characterized in that: The bottom of the rack a (301) is connected to a rack b (400), one side of the release plate (107) is connected to a connecting shaft (401), the connecting shaft (401) passes through the vibration frame (106) and the preheating box body (104) and is slidably connected to the preheating box body (104), and one end of the connecting shaft (401) is connected to a gear b (402) adapted to the rack b (400).

7. A soil remediation device and soil remediation method according to claim 6, characterized in that: A spring (403) is connected between the gear b (402) and the vibration frame (106), and a plurality of baffles (404) are connected to the top of the vibration frame (106).

8. A soil remediation device and soil remediation method according to claim 1, characterized in that: The moving component comprises a lead screw (500) rotatably connected to the repair box (100), the preheating box (104) is threadedly connected to the lead screw (500), and the repair box (100) is provided with a motor (501), and the drive shaft of the motor (501) is connected to the lead screw (500).

9. A soil remediation device and soil remediation method according to claim 3, characterized in that: A material discharge port (502) is provided on one side of the repair box (100), and a material discharge frame (503) is slidably connected to the repair groove (200).

10. A soil remediation method, applicable to a soil remediation device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: The soil is fed into the preheating box (104) through the feed port (103), and the preheating box (104) is moved, and the crushing roller (105) rotates and combines with the vibration of the vibration frame (106) to crush and heat the soil, and initially volatilize water and low-boiling-point pollutants; Step 2: After the preheating box (104) moves to the designated position, the release plate (107) rotates in sequence to release the soil evenly onto the repair platform (101); Step 3: The heating unit (102) conducts heat to the restoration platform (101) through the heat conducting plate (108), and the soil decomposes organic pollutants and volatilizes low boiling point pollutants at high temperature; Step 4: After the repair is completed, the soil is discharged from the discharge port (502) through the discharge frame (503).

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