Device for repairing soil using highly efficient activated carbon

Abstract

The present invention discloses a device for repairing soil using high-efficiency activated carbon, including: a walking mechanism, on which a device body is provided; a mixing structure, which includes: a tank body, on which a first feed channel, a second feed channel, and a discharge port are provided, and a valve is provided on the discharge port; a rotary driver, whose output shaft is vertically arranged and coaxially provided with a rotating shaft, the rotating shaft is rotatably arranged on the tank body, and a plurality of stirring blades are provided; a charcoal canister, on which activated carbon particles are contained, and a particle outlet connected to the first feed channel is provided on the charcoal canister; a soil conveying structure, which is used to scoop up and convey soil, and the output end is located above the inlet end of the second feed channel. The present invention realizes scooping up and conveying soil to the tank body while walking in the field through the arrangement of the walking mechanism, the soil conveying structure, and the mixing structure, and outputting after mixing with the activated carbon particles, and statically adsorbing in the field, without occupying the use of the mixing structure, thereby reducing the soil repair time in the entire environment.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation, and more specifically, to a device for remediating soil using high-efficiency activated carbon. Background Art

[0002] Polycyclic aromatic hydrocarbons (PAHs) are hydrophobic organic pollutants that are often distributed in the soil surface environment within a depth of 100 cm. PAHs in the environment mainly come from the combustion of coal and oil, as well as refineries, gas plants and asphalt processing plants. They are toxic and carcinogenic, and are extremely harmful to the human body.

[0003] Common methods such as plant restoration, chemical treatment and microbial degradation are used to treat polycyclic aromatic hydrocarbon organic pollutants, but the plant restoration treatment cycle is long, and the repair of organic pollutants requires high conditions for plant growth. Chemical treatment methods are prone to secondary pollution to the environment, and microbial degradation has strict requirements on the soil and water environment, and the degradation efficiency is low. In the prior art, the soil is passed from a soil feeding device through a conveyor belt and a feeder to a biochar adsorption tower device, and is fully contacted and mixed with activated carbon. The polycyclic aromatic hydrocarbon pollutants in the soil are adsorbed and removed by activated carbon, and then a centrifugal tower device is used to separate the activated carbon from the soil. However, the time for the soil and activated carbon to be fully adsorbed by this type of device occupies the use of the biochar adsorption tower device, prolonging the soil restoration time in the entire environment, and two devices, a biochar adsorption tower device and a centrifugal tower device, are required to complete the full contact and separation steps.

[0004] Therefore, it is worth considering how to design the structure of a device for remediating soil using high-efficiency activated carbon to solve the above technical problems. Summary of the invention

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0006] In order to achieve these purposes and other advantages according to the present invention, a device for remediating soil using high-efficiency activated carbon is provided, comprising:

[0007] A walking mechanism, on which a device body is provided, wherein the device body is provided with a first soil inlet and a first soil outlet;

[0008] A mixing structure comprising:

[0009] A tank body, which is arranged on the device body, and is provided with a first feed channel, a second feed channel, and a discharge port connected to the first soil outlet, and a valve is provided on the discharge port;

[0010] A rotary driver, whose output shaft is vertically arranged and coaxially provided with a rotary shaft, the rotary shaft rotatably penetrates the tank body, and the rotary shaft is provided with a plurality of stirring blades;

[0011] A carbon canister, which is arranged on the device body, contains activated carbon particles, and is provided with a particle outlet connected to the inlet end of the first feed channel;

[0012] A soil conveying structure is arranged on the device body and is used for scooping up and conveying soil. The output end of the soil conveying structure is penetrated through the first soil inlet and is located directly above the inlet end of the second feed channel.

[0013] Preferably, it further comprises a crushing structure, which comprises:

[0014] A crushing tank, the top and bottom of which are respectively provided with a second soil inlet and a second soil outlet, the second soil inlet is located directly below the output end of the soil conveying structure, and the second soil outlet is communicated with the first feeding channel;

[0015] A first rotary driver, which is arranged on the crushing tank, wherein the output shaft of the first rotary driver is arranged horizontally;

[0016] A shaft rod is coaxially arranged on the output shaft of the first rotary driver, and a plurality of crushing cutter heads are arranged on the shaft rod.

[0017] Preferably, the first soil outlet is located at the bottom of the device body, an annular base is suspended on the device body, the tank body is rotatably arranged on the annular base, the first feeding channel and the second feeding channel are connected and slidably arranged on the top of the tank body with the rotating shaft as the central axis, a plurality of through holes with a diameter smaller than that of the activated carbon particles are opened on the tank body, and the through holes are connected with the first soil outlet;

[0018] It also includes a magnetic connector, which includes a fixed sleeve block and a limiting sleeve block, wherein the fixed sleeve block is fixed to the top of the tank body and movably sleeved on the rotating shaft, and the limiting sleeve block is fixedly sleeved on the rotating shaft, and the bottom of the limiting sleeve block and the top of the fixed sleeve block are both smooth and in contact with each other;

[0019] Wherein, when the fixed sleeve is powered on, the limit sleeve is adsorbed on the fixed sleeve, and when the rotating shaft rotates, the tank body rotates;

[0020] When the fixed sleeve block is powered off and the limiting sleeve block is in contact with the fixed sleeve block, the tank body does not rotate.

[0021] Preferably, a depression is provided at the bottom of the device body, and the first soil outlet is provided on the depression.

[0022] Preferably, the outer side of the through hole is arranged to be inclined downward.

[0023] Preferably, the traveling mechanism is a crawler traveling mechanism.

[0024] Preferably, the discharge port is provided at the bottom of the tank body, and the flow rate of the discharge port is greater than the sum of the flow rates of the first feed channel and the second feed channel.

[0025] Preferably, the soil conveying structure comprises:

[0026] a soil transport channel, the upper end of which is arranged on the device body and communicated with the first soil inlet;

[0027] A second rotary driver, a fixed end of which is arranged at the bottom of the soil transport channel, and an output shaft of the second rotary driver is arranged horizontally and perpendicular to the walking direction of the walking mechanism;

[0028] A rotating drum, which is coaxially arranged on the output shaft of the second rotary driver, and a plurality of scrapers are arranged on the surface of the rotating drum;

[0029] A conveyor belt is arranged on the soil transport channel, the input end of the conveyor belt is located below the output end of the shovel, the output end of the conveyor belt passes through the first soil inlet and is located directly above the second soil inlet, and a plurality of retaining plates are arranged on the conveyor belt at intervals along the conveying direction thereof.

[0030] Preferably, the activated carbon particles are made of coconut shell activated carbon with a specific surface area of ​​1000-2000 m² / g.

[0031] The present invention has at least the following beneficial effects:

[0032] First, the present invention realizes scooping up the soil while walking in the field and conveying it to the tank body through the setting of the walking mechanism, the soil conveying structure and the mixing structure, mixing it with the activated carbon particles, and then outputting it, and adsorbing it statically in the field, which does not occupy the mixing use of the mixing structure, thereby reducing the soil restoration time in the entire environment.

[0033] Second, the present invention realizes the beneficial effects of stirring and separating by using one tank body through the arrangement of a magnetic connector composed of a fixed sleeve block and a limiting sleeve fast, by means of power on and power off.

[0034] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A side sectional view of the device according to one of the technical solutions of the present invention;

[0036] Figure 2A side cross-sectional view of the crushing structure according to one of the technical solutions of the present invention;

[0037] Figure 3 A side sectional view of the device body according to one of the technical solutions of the present invention;

[0038] Figure 4 A side view of the mixing structure according to one of the technical solutions of the present invention;

[0039] Figure 5 This is a side view of the soil conveying structure according to one of the technical solutions of the present invention.

[0040] The symbols in the drawings are as follows:

[0041] Walking mechanism 1, device body 2, soil conveying structure 3, crushing structure 4, charcoal canister 5, mixing structure 6, second feeding channel 7, tank body 61, rotary driver 62, rotating shaft 63, stirring blade 64, annular base 65, through hole 66, crushing tank 41, first rotating driver 42, shaft 43, crushing cutter head 44, magnetic connector 8, fixed sleeve block 81, limiting sleeve block 82, low-lying part 21, soil conveying channel 31, rotating drum 32, shovel blade 33, conveyor belt 34, retaining plate 35. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0043] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] like Figures 1 to 5 As shown, the present invention provides a device for repairing soil using high-efficiency activated carbon, comprising:

[0045] A walking mechanism 1, on which a device body 2 is provided, and a first soil inlet and a first soil outlet are provided on the device body 2; specifically, the walking mechanism 1 can be a crawler walking mechanism 1, a wheeled walking mechanism 1, a semi-crawler walking mechanism 1 or other walking mechanism, and the walking mechanism 1 moves forward to drive the device body 2 forward;

[0046] The mixing structure 6 comprises:

[0047] A tank body 61 is provided on the device body 2, and is provided with a first feed channel, a second feed channel 7, and a discharge port connected to the first soil outlet, and a valve is provided on the discharge port; specifically, the tank body 61 may be cylindrical or rectangular, the first feed channel is used to add activated carbon particles, the second feed channel 7 is used to add soil, and the discharge port is used to discharge the mixture of activated carbon particles and soil to the first soil outlet, and then discharged from the device body 2;

[0048] A rotary driver 62, whose output shaft is vertically arranged and coaxially provided with a rotary shaft 63, wherein the rotary shaft 63 is rotatably arranged on the tank body 61, and a plurality of stirring blades 64 are arranged on the rotary shaft 63; specifically, the rotary driver 62 can be a mechanism that can generate a rotational driving force, such as a rotary motor, a rotary cylinder or a rotary oil cylinder, and the fixed end of the rotary driver 62 can be fixed on the inner top of the device body 2 by welding or screwing, and the rotary driver 62 drives its output shaft to rotate, driving the coaxial rotary shaft 63 to rotate, so as to drive the plurality of stirring blades 64 to rotate, so as to realize uniform mixing of the activated carbon particles and the soil added to the tank body 61, and obtain a mixture wherein the plurality of stirring blades 64 are uniformly arranged along the axial direction of the rotary shaft 63, and the plurality of stirring blades 64 of each group are uniformly arranged along the circumferential direction of the rotary shaft 63, so as to facilitate faster uniform stirring;

[0049] A carbon canister 5 is disposed on the device body 2, containing activated carbon particles, and is provided with a particle outlet connected to the inlet end of the first feed channel; specifically, the carbon canister 5 can be disposed in or on the top of the device body 2 by welding or screwing, and the activated carbon particles in the carbon canister 5 are added to the tank body 61 through the particle outlet and the first feed channel, and a valve is provided on the particle outlet to control the addition and stop of the activated carbon particles;

[0050] A soil conveying structure 3 is arranged on the device body 2, and is used to scoop up and convey soil. The output end of the soil conveying structure 3 is penetrated on the first soil inlet and is located directly above the inlet end of the second feed channel 7; specifically, the soil conveying structure 3 includes a soil conveying channel, a shoveling structure (a second rotating drive, a rotating drum, a shovel blade) arranged on the soil conveying channel, and a conveyor belt (with a retaining plate) arranged on the soil conveying channel. It can also be a belt shovel and thrower. The belt shovel and thrower is a device in the prior art that can scoop up and convey soil. After the soil conveying structure 3 scoops up the soil and conveys it to the output end, it then falls into the inlet end of the second feed channel 7, and then enters the tank body 61 for mixing.

[0051] In the above technical solution, the device body 2 is driven by the walking mechanism 1 to move forward, and the soil conveying structure 3 is started. Under the movement of the walking mechanism 1, the soil conveying structure 3 continuously scoops up the soil and conveys it to the device body 2, and enters the tank body 61 through the second feeding channel 7, and then the activated carbon particles in the carbon canister 5 are added to the tank body 61 through the first feeding channel, and the rotary driver 62 is started, and its output shaft rotates to drive the rotating shaft 63 to rotate, and then drives the stirring blade 64 to rotate, so as to stir the soil added to the tank body 61. and activated carbon particles to obtain a uniform mixture, which is then discharged from the tank body 61 through the discharge port, and then discharged from the device body 2 through the first soil outlet and falls back to the field, where the activated carbon statically adsorbs polycyclic aromatic hydrocarbon organic pollutants in the soil. The device scoops up the soil while walking in the field through the walking mechanism 1, the soil conveying structure 3, and the mixing structure 6, and conveys it to the tank body 61, mixes it with the activated carbon particles, and then outputs it for static adsorption in the field, which does not occupy the mixing use of the mixing structure 6, thereby reducing the soil remediation time in the entire environment.

[0052] In another technical solution, a crushing structure 4 is also included, which includes:

[0053] The crushing tank 41 has a second soil inlet and a second soil outlet respectively formed on the top and bottom thereof, wherein the second soil inlet is located directly below the output end of the soil conveying structure 3, and the second soil outlet is connected to the first feeding channel;

[0054] A first rotary driver 42 is provided on the crushing tank 41, and an output shaft of the first rotary driver 42 is provided horizontally; specifically, the first rotary driver 42 may be a mechanism capable of generating a rotary driving force, such as a rotary motor, a rotary cylinder or a rotary oil cylinder, and the fixed end of the first rotary driver 42 may be fixedly provided on the inner wall of the crushing tank 41 by welding or screwing, and the first rotary driver 42 drives its output shaft to rotate. The first rotary driver 42 may also be provided on the inner wall of the device body 2, and at this time, the output shaft of the first rotary driver 42 horizontally passes through one side of the crushing tank 41;

[0055] The shaft rod 43 is coaxially arranged on the output shaft of the first rotation driver 42, and a plurality of crushing cutter heads 44 are arranged on the shaft rod 43; specifically, the shaft rod 43 can be coaxially arranged on the output shaft of the first rotation driver 42 by welding or screwing, and the shaft rod 43 rotates driven by the output shaft of the first rotation driver 42, and a plurality of crushing cutter heads 44 can be evenly arranged on the shaft rod 43 (evenly arranged along the axial and circumferential directions of the shaft rod 43), and the circumferential sides of the crushing cutter heads 44 can all have blades, which can generate greater shear force and tearing force under the rotation of the shaft rod 43, crushing the soil to be repaired to obtain soil particles of different particle sizes.

[0056] In the above technical solution, the second soil inlet of the crushing tank 41 is located directly below the output end of the soil conveying structure 3, so that the soil conveyed by the soil conveying structure 3 falls into the crushing tank 41. The second soil inlet of the crushing tank 41 is also provided with a funnel tube with an upper end diameter larger than a lower end diameter, so that the soil can enter the crushing tank 41 more easily, which can reduce the soil from leaking out of the crushing tank 41 during the falling process and cannot be crushed and repaired. After the soil conveyed by the soil conveying structure 3 enters the crushing tank 41, the first soil conveying structure 3 is used to transport the soil to the crushing tank 41. The dynamic driver 42 drives its output shaft to rotate, thereby driving the coaxial shaft 43 to rotate, thereby driving the multiple crushing heads 44 located on the shaft 43 to rotate, cutting and crushing the soil blocks to obtain soil particles with different particle sizes (the specific particle size is determined by the distribution and rotation time of the crushing heads 44, and the particle size of the soil particles is preferably smaller than that of the activated carbon particles). The crushed soil particles enter the tank body 61 and are mixed with the activated carbon particles, which can increase the contact area of ​​the activated carbon particles and accelerate the adsorption of polycyclic aromatic hydrocarbons in the soil.

[0057] In another technical solution, the first soil outlet is located at the bottom of the device body 2, and an annular base 65 is suspended on the device body 2, and the tank body 61 is rotatably arranged on the annular base 65. The first feeding channel and the second feeding channel 7 are connected and slidably arranged on the top of the tank body 61 with the rotating shaft 63 as the central axis. The tank body 61 is provided with a plurality of through holes 66 with a diameter smaller than the diameter of the activated carbon particles, and the through holes 66 are connected with the first soil outlet; specifically, the annular base 65 can be suspended on the device body 2 by a plurality of rods with one end horizontally connected to the device body 2, and the inner wall of the annular base 65 can be provided with a bearing to realize the rotation setting with the tank body 61, and the top of the tank body 61 is provided with a through hole 66 connected to the rotating shaft 63. An annular slide groove coaxial with the axis 63, annular slide rails are provided on both sides of the annular slide groove, two sliders are slidably provided on the slide rails, and the two pairs of sliders are fixedly connected to the side walls of the first feed channel and the second feed channel 7 respectively. The setting of the annular slide groove, the slide rails and the sliders realizes the sliding connection between the tank body 61 and the first feed channel and the second feed channel 7 with the rotating shaft 63 as the central axis, so that when the tank body 61 rotates, the first feed channel and the second feed channel 7 do not rotate, are not rigidly connected to the tank body 61, and do not hinder the rotation of the tank body 61. The setting of the diameter of the through hole 66 is convenient for when the tank body 61 rotates, only soil particles with a particle size smaller than the diameter of the through hole 66 are discharged from the tank body 61, thereby realizing the separation of soil particles and activated carbon particles;

[0058] It also includes a magnetic connector 8, which includes a fixed sleeve 81 and a limiting sleeve 82. The fixed sleeve 81 is fixed to the top of the tank body 61 and movably sleeved on the rotating shaft 63. The limiting sleeve 82 is fixedly sleeved on the rotating shaft 63, and the bottom of the limiting sleeve 82 and the top of the fixed sleeve 81 are both smooth and in contact.

[0059] When the fixing sleeve 81 is powered, the limiting sleeve 82 is adsorbed on the fixing sleeve 81, and when the rotating shaft 63 rotates, the tank body 61 rotates;

[0060] When the fixed sleeve block 81 is powered off and the limiting sleeve block 82 is in contact with the fixed sleeve block 81 , the tank body 61 does not rotate.

[0061] Specifically, the fixed sleeve 81 can be fixed on the top of the tank body 61 by welding or screwing, and can be movably sleeved on the rotating shaft 63 by a bearing. When the fixed sleeve 81 is powered off, the fixed sleeve 81 loses its magnetism, and the limiting sleeve 82 is arranged in contact with the fixed sleeve 81. At this time, the rotating shaft 63 is separated from the tank body 61. Even if the rotating shaft 63 is driven to rotate by the rotating driver 62, the tank body 61 will not rotate. The rotating shaft 63 can only drive the stirring blade 64 to rotate to realize its stirring function, so as to mix the soil to be repaired and the activated carbon. After the mixture is stationary and adsorbed in the field for a period of time, the walking mechanism 1 and the activated carbon are used to mix the soil to be repaired. When the soil conveying mechanism conveys the mixture in the field into the tank body 61 (the crushing structure 4 does not operate during this process to prevent the activated carbon particles from being crushed), the fixed sleeve block 81 is energized, and the fixed sleeve block 81 is magnetic, and the limiting sleeve block 82 is adsorbed on the fixed sleeve block 81. At this time, the rotating shaft 63 is fixedly connected to the tank body 61. When the rotating shaft 63 is driven to rotate by the rotating driver 62, the rotating shaft 63 rotates, driving the tank body 61 to rotate on the annular base 65, thereby causing the soil particles in the tank body 61 to generate centrifugal force and be discharged from the tank body 61 through the through hole 66, thereby realizing the separation of soil and activated carbon particles.

[0062] In another technical solution, a depression 21 is provided at the bottom of the device body 2, and the first soil outlet is opened on the depression 21; specifically, the setting of the depression 21 and the first soil outlet makes it easier for the soil to be discharged from the device body 2 and fall back into the field after being mixed or separated with the activated carbon particles and discharged from the discharge port or the through hole 66.

[0063] In another technical solution, the outer side of the through hole 66 is tilted downward; specifically, the setting of the through hole 66 facilitates the soil to be discharged from the through hole 66 when the tank body 61 rotates, and falls to the bottom of the device body 2 more quickly and is discharged from the first soil outlet. The side wall of the device body 2 may also be provided with an upwardly tilted dust baffle, and the upper end of the dust baffle is higher than the through hole 66 located at the top layer, so as to reduce the dust from floating upward when the soil dust is discharged from the through hole 66, so as to prevent the dust from accumulating on the device body 2.

[0064] In another technical solution, the traveling mechanism 1 is a crawler traveling mechanism 1; specifically, the crawler traveling mechanism 1 makes it easier for the device body 2 to travel in the field.

[0065] In another technical solution, the discharge port is provided at the bottom of the tank body 61, and the flow rate of the discharge port is greater than the sum of the flow rates of the first feed channel and the second feed channel 7; specifically, the discharge port is provided at the bottom of the tank body 61, so as to discharge the evenly stirred mixture of soil and activated carbon particles from the tank body 61 when the tank body 61 is not rotating, wherein the flow rate of the discharge port is greater than the sum of the flow rates of the first feed channel and the second feed channel 7, so that the stirring blades 64 stir the soil and activated carbon particles evenly after adding them, and then quickly discharge them from the tank body 61, without accumulating on the tank body 61, causing the soil to be discharged from the through hole 66, thereby affecting the adsorption effect of the activated carbon particles.

[0066] In another technical solution, the soil conveying structure 3 includes:

[0067] A soil conveying channel 31, the upper end of which is arranged on the device body 2 and is connected to the first soil inlet; specifically, the soil conveying channel 31 can be made of stainless steel, carbon steel or a hard material, and is a shell with upper and lower openings. The upper end of the soil conveying channel 31 is connected to the first soil inlet, so that the conveyor belt 34 described below can convey the soil from the lower end of the soil conveying channel 31 and pass through the first soil inlet into the crushing structure 4;

[0068] A second rotary driver, whose fixed end is arranged at the bottom of the soil transport channel 31, and the output shaft of the second rotary driver is arranged horizontally and perpendicular to the travel direction of the walking mechanism 1; specifically, the second rotary driver can be a rotary motor, a rotary cylinder or a rotary oil cylinder, and the fixed end of the second rotary driver is fixed to the bottom of the soil transport channel 31 by welding or screwing;

[0069] The rotary drum 32 is coaxially arranged on the output shaft of the second rotary drive, and a plurality of scrapers 33 are arranged on the surface of the rotary drum 32; specifically, when the second rotary drive is started, the output shaft thereof rotates, driving the rotary drum 32 to rotate, and the plurality of scrapers 33 on the rotary drum 32 rotate, and the soil is scraped up by the rotation of the scrapers 33;

[0070] A conveyor belt 34 is arranged on the soil transport channel 31, and the input end of the conveyor belt 34 is located below the output end of the shovel blade 33, and the output end of the conveyor belt passes through the first soil inlet and is located directly above the second soil inlet. A plurality of retaining plates 35 are arranged on the conveyor belt 34 at intervals along the conveying direction thereof; specifically, the conveyor belt 34 can be a belt conveyor or a plate conveyor generally including a traction member, a load-bearing member, a driving device, a tensioning device, a redirecting device and a supporting member, which can be installed on the side wall of the soil transport channel 31, and the input end of the conveyor belt 34 receives the soil shoveled by the shovel blade 33 and transports it from bottom to top to its output end to enter the second soil inlet for crushing, wherein the setting of the retaining plates 35 facilitates better soil transportation without causing the soil to slip on the conveyor belt 34.

[0071] In the above technical solution, when the walking mechanism 1 moves forward and drives the device body 2 forward, the second rotary drive is started, the output shaft of the second rotary drive rotates, drives the rotating drum 32 to rotate, and then drives the multiple shovel blades 33 arranged on the rotating drum 32 to rotate. The shovel blades 33 rotate to scoop up the soil on the field surface and drive the rotation to input to the input end of the conveyor belt 34 (the depth of the scooped soil is set according to the depth of the shovel blades 33 inserted into the soil, preferably 100 cm), start the conveyor belt 34 with the retaining plate 35, the conveyor belt 34 and the retaining plate 35 transport the soil from bottom to top to its output end, and enter the second soil inlet of the crushing structure 4, and then enter the tank body 61, the soil conveying structure 3 scoops up the soil in the field and transports it to the crushing structure 4 and the mixing structure 6 through the setting of the rotating drum 32, the shovel 33 and the conveyor belt 34. Similarly, the mixture of soil and activated carbon particles is transported to the mixing structure 6 through the soil conveying structure 3 to separate the soil and activated carbon particles.

[0072] In another technical solution, the material of the activated carbon particles is coconut shell activated carbon with a specific surface area of ​​1000-2000 m² / g; specifically, coconut shell activated carbon has more adsorption sites and can more effectively adsorb hydrophobic organic pollutants such as polycyclic aromatic hydrocarbons in the soil, and coconut shell activated carbon has a highly developed pore structure, including micropores and mesopores. These pores provide a large amount of internal surface area, so that the activated carbon particles have a specific surface area of ​​up to 1000-2000 m² / g, which makes it adsorb polycyclic aromatic hydrocarbons at a faster rate, which means that the activated carbon particles can capture and fix more organic pollutants such as polycyclic aromatic hydrocarbons in a short time when fully mixed with the soil to be repaired.

[0073] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for soil remediation using high-efficiency activated carbon, characterized in that: include: A walking mechanism, on which a device body is provided, wherein the device body is provided with a first soil inlet and a first soil outlet; A mixing structure comprising: A tank body, which is arranged on the device body, and is provided with a first feed channel, a second feed channel, and a discharge port connected to the first soil outlet, and a valve is provided on the discharge port; A rotary driver, whose output shaft is vertically arranged and coaxially provided with a rotary shaft, the rotary shaft rotatably penetrates the tank body, and the rotary shaft is provided with a plurality of stirring blades; A carbon canister, which is arranged on the device body, contains activated carbon particles, and is provided with a particle outlet connected to the inlet end of the first feed channel; A soil conveying structure, which is arranged on the device body and is used to scoop up and convey soil, wherein the output end of the soil conveying structure is penetrated through the first soil inlet and is located directly above the inlet end of the second feeding channel; The first soil outlet is located at the bottom of the device body, an annular base is suspended on the device body, the tank body is rotatably arranged on the annular base, the first feed channel and the second feed channel are connected and slidably arranged on the top of the tank body with the rotating shaft as the central axis, a plurality of through holes with a diameter smaller than that of the activated carbon particles are opened on the tank body, and the through holes are connected to the first soil outlet; It also includes a magnetic connector, which includes a fixed sleeve block and a limiting sleeve block, wherein the fixed sleeve block is fixed to the top of the tank body and movably sleeved on the rotating shaft, and the limiting sleeve block is fixedly sleeved on the rotating shaft, and the bottom of the limiting sleeve block and the top of the fixed sleeve block are both smooth and in contact with each other; Wherein, when the fixed sleeve is powered on, the limit sleeve is adsorbed on the fixed sleeve, and when the rotating shaft rotates, the tank body rotates; When the fixed sleeve block is powered off and the limiting sleeve block is in contact with the fixed sleeve block, the tank body does not rotate.

2. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: Also included is a crushing structure, which includes: A crushing tank, the top and bottom of which are respectively provided with a second soil inlet and a second soil outlet, the second soil inlet is located directly below the output end of the soil conveying structure, and the second soil outlet is communicated with the first feeding channel; A first rotary driver, which is arranged on the crushing tank, wherein the output shaft of the first rotary driver is arranged horizontally; A shaft rod is coaxially arranged on the output shaft of the first rotary driver, and a plurality of crushing cutter heads are arranged on the shaft rod.

3. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: A depression is provided at the bottom of the device body, and the first soil outlet is opened on the depression.

4. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: The outer side of the through hole is tilted downward.

5. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: The traveling mechanism is a crawler traveling mechanism.

6. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: The discharge port is provided at the bottom of the tank body, and the flow rate of the discharge port is greater than the sum of the flow rates of the first feed channel and the second feed channel.

7. The device for remediating soil using high-efficiency activated carbon as claimed in claim 2, characterized in that: The soil conveying structure comprises: a soil transport channel, the upper end of which is arranged on the device body and communicated with the first soil inlet; A second rotary driver, a fixed end of which is arranged at the bottom of the soil transport channel, and an output shaft of the second rotary driver is arranged horizontally and perpendicular to the walking direction of the walking mechanism; A rotating drum, which is coaxially arranged on the output shaft of the second rotary driver, and a plurality of scrapers are arranged on the surface of the rotating drum; A conveyor belt is arranged on the soil transport channel, the input end of the conveyor belt is located below the output end of the shovel, the output end of the conveyor belt passes through the first soil inlet and is located directly above the second soil inlet, and a plurality of retaining plates are arranged on the conveyor belt at intervals along the conveying direction thereof.

8. The device for remediating soil using high-efficiency activated carbon according to claim 1, characterized in that: The material of the activated carbon particles is coconut shell activated carbon with a specific surface area of ​​1000-2000 m2 / g.

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