Soil remediation treatment equipment for solid waste treatment plant

Abstract

The invention relates to the technical field of soil remediation for solid waste treatment, and particularly discloses soil remediation treatment equipment for a solid waste disposal plant, the soil remediation treatment equipment comprises a rack and a treatment bin arranged on the rack, a drilling depth remediation mechanism is arranged at the bottom of the treatment bin, and the drilling depth remediation mechanism comprises a drill rod and a drill bit arranged at the bottom end of the drill rod; the outer part of the drill rod is also coaxially sleeved with an outer cylinder; a plurality of repairing areas are arranged on the outer wall of the outer cylinder from top to bottom, each repairing area comprises a plurality of grooves annularly formed in the outer wall of the outer cylinder, protective plates are installed in the grooves in a matched mode, pushing mechanisms are installed on the side faces, facing the grooves, of the protective plates, and a plurality of telescopic conical pipes are further arranged on the surfaces of the protective plates. One end of the telescopic conical pipe communicates with a storage box arranged on the side face of the top end of the outer barrel through a flexible conveying pipeline arranged in the outer barrel in a penetrating mode, a first repairing agent is stored in the storage box, and an annular channel is formed between the outer barrel and the drill rod. The equipment effectively deals with combined pollution existing in the soil, and the remediation effect of the equipment on the soil is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation for solid waste treatment, and in particular discloses soil remediation treatment equipment for solid waste treatment sites. Background Art

[0002] Solid waste treatment sites (such as landfills, storage sites, disposal areas, etc.) receive various types of waste such as industrial solid waste, domestic waste, hazardous waste, etc. for a long time. These wastes will release a large amount of pollutants during the stacking, degradation or leakage process, thereby polluting the soil and threatening the surrounding ecology and human health. Therefore, it is urgent to repair the contaminated soil through remediation measures.

[0003] Currently, there are two main types of traditional remediation methods for treating contaminated soil in solid waste disposal sites. One is the remediation method centered on "in situ injection," which involves injecting a single type of remediation agent (such as a curing agent for heavy metal stabilization or an oxidant for organic matter degradation) into the soil through a drill pipe, relying on the natural diffusion of the agent to achieve remediation. The other is the remediation method centered on "ex situ treatment," which involves excavating the contaminated soil and transporting it to specialized equipment (such as a leaching machine or thermal desorption furnace) for remediation.

[0004] The prior art (e.g., Patent No. 202411075709.8) discloses an ecological tea garden restoration device that can process clay soil containing gravel by screening, leaching, etc. However, it still has the following defects in practical application:

[0005] The remediation means are single, and it is difficult to coordinate with in-situ remediation technology to directly remediate complex pollution in different layers of soil, and it is difficult to achieve direct remediation of deep soil. The remediation agent can only be mixed with the soil in the leaching tank, and it is difficult to accurately deliver it according to the depth of soil pollution, resulting in poor remediation effect and low remediation efficiency. Summary of the Invention

[0006] The object of the present invention is to provide a soil remediation treatment device for solid waste disposal sites to solve one of the above-mentioned technical problems existing in the prior art.

[0007] Specifically, the present invention is achieved through the following technical solutions:

[0008] A soil remediation treatment device for a solid waste disposal site includes a frame and a treatment chamber disposed on the frame. A deep drilling repair mechanism is provided at the bottom of the treatment chamber. The deep drilling repair mechanism includes a drill rod and a drill bit disposed at the bottom end of the drill rod. The top end of the drill rod is connected to a hydraulic motor at the bottom of the frame. An axial propulsion cylinder is provided between the hydraulic motor and the frame. The output end of the axial propulsion cylinder is connected to the hydraulic motor via a mounting plate. An outer cylinder is also coaxially sleeved on the outside of the drill rod.

[0009] The outer wall of the outer cylinder is provided with a plurality of repair areas from top to bottom, each of the repair areas includes a plurality of annular grooves opened on the outer wall of the outer cylinder, a guard plate is installed in the interior of the groove, a pushing mechanism is installed on the side of the guard plate facing the groove, and a plurality of retractable conical tubes are further provided on the surface of the guard plate, one end of the retractable conical tube is connected to a storage box provided on the side of the top end of the outer cylinder through a flexible delivery pipe passing through the outer cylinder, and the storage box stores a first repair agent;

[0010] An annular channel is formed between the outer cylinder and the drill rod, and a flow guide port connected to the annular channel is formed between the bottom end of the outer cylinder and the drill bit.

[0011] Based on the above scheme, the present application coaxially sleeves an outer cylinder on the outside of the drill pipe to form an annular channel between the outer cylinder and the drill pipe, and forms a diversion port between the bottom end of the outer cylinder and the drill bit, so that the deep soil debris loosened by the drill bit is introduced into the annular channel and transported to the treatment chamber, providing raw materials for the ex situ remediation of the soil. At the same time, the first remediation agent is injected in situ into the remediation area of ​​the outer wall of the outer cylinder, forming a synergistic mechanism of "in situ remediation of deep pollution + ex situ treatment of drilled soil", realizing the synergy of in situ remediation and ex situ remediation, and can simultaneously deal with the remediation of complex pollution in the soil, overcoming the defects of the traditional technology of separation of in situ and ex situ remediation means and difficulty in coordinating the treatment of complex pollution;

[0012] Specifically, for in-situ remediation, the present application is implemented by setting up a deep drilling remediation mechanism: the deep drilling remediation mechanism includes a drill rod and a drill bit, the axial propulsion cylinder pushes the hydraulic motor to drive the drill rod to drive the drill bit to drill down into the contaminated soil at different depths, and multiple remediation areas are set on the outer wall of the outer cylinder. A protective plate is installed in the groove of each remediation area through a pushing mechanism. When the equipment drills to a certain depth, the pushing mechanism can correspondingly push out the protective plate so that it fits the inner wall of the soil at that depth to form an "independent remediation space". At this time, the retractable conical tube on the surface of the protective plate extends and inserts into the soil. At the same time, the storage box transports the first remediation agent into the retractable conical tube through a flexible conveying pipe, so as to accurately inject the first remediation agent adapted to the deep pollution type into the soil at the corresponding depth, realize dynamic layered and precise delivery of the first remediation agent, and directly repair the deep soil, overcoming the defect of uneven natural diffusion of a single remediation agent in traditional in-situ injection remediation. Moreover, by adjusting the action sequence and agent ratio of the remediation zones at different heights of the outer cylinder, differentiated remediation can be implemented for pollutants of different depths and types at the same time, and the remediation efficiency is higher.

[0013] For ex situ remediation, this application is achieved through the cooperation of an annular channel and a processing chamber: the annular channel formed by the outer tube and the drill rod cooperates with the guide port between the bottom end of the outer tube and the drill bit to guide the deep soil debris loosened by the drill bit into the annular channel and transport it to the processing chamber, providing a basis for ex situ soil remediation treatment, overcoming the defect that traditional ex situ treatment cannot directly act on deep soil, and making it work in conjunction with the in situ remediation mode to further improve the equipment remediation treatment effect.

[0014] Compared with the prior art, the present invention has at least the following advantages and beneficial effects:

[0015] (1) The present invention forms a closed-loop mechanism for in-situ remediation of deep pollution and ex-situ treatment of drilled soil by setting up a deep drilling remediation mechanism and cooperating with the treatment chamber, thereby overcoming the defect of the traditional separation of in-situ and ex-situ remediation methods, and can simultaneously deal with complex soil pollution, enhance the comprehensiveness of the equipment's soil remediation, and greatly improve the equipment's soil remediation effect.

[0016] (2) The present invention forms a synergistic repair chain of liquid repair chelation and solid repair sedimentation through the progressive combination of the first repair agent and the second repair agent, which not only solves the problem of uneven diffusion of in-situ repair of deep soil, but also avoids the loss of activity of the repair agent, thereby improving the repair efficiency and stability of the equipment.

[0017] (3) The present invention ensures stable transportation of deep soil debris and avoids blockage through the design of the reverse rotation of the outer cylinder and the drill pipe, the annular channel shearing and pushing assembly, and the sealing ring disk. At the same time, it achieves dense backfilling of the repaired soil, ensuring the continuous operation efficiency of the equipment and the stability of the soil structure after repair.

[0018] (4) The present invention achieves uniform mixing of soil pretreatment and the second remediation agent through graded treatment of the filtering chamber and the mixing chamber of the processing bin, in conjunction with the synchronous shearing and feeding of the feeding piece and the stirring blade, thereby avoiding interference from impurities, improving the ex situ remediation effect, and forming an integrated process of drilling-screening-remediation-backfilling, which does not require additional equipment and reduces the cost of soil remediation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the repair area of ​​the present invention;

[0022] Figure 3 It is a partial structural diagram of the transmission gear set of the present invention;

[0023] Figure 4 For the present invention Figure 1 The partially enlarged structural diagram at A in the figure is intended to show the feeding port;

[0024] Figure 5 This is a schematic diagram of the sealing ring disc structure between the drill rod and the outer cylinder of the present invention;

[0025] Figure 6 It is a schematic diagram of the state of the sealing ring disk and the transmission gear set of the present invention.

[0026] In the above drawings, the reference numerals represent: 1. drilling depth repair mechanism; 11. drill rod; 12. drill bit; 13. outer cylinder; 14. repair area; 141. groove; 142. guard plate; 143. pushing mechanism; 144. telescopic tapered tube; 145. flexible conveying pipeline; 146. storage box; 15. transmission gear set; 151. driving gear; 152. driven gear; 153. gear ring; 16. annular channel; 161. guide port; 171. spiral blade; 172. spiral ridge; 18. sealing ring disk; 181. first through hole; 182. second through hole; 2. processing chamber; 21. filter chamber; 211. vibrating screen; 22. mixing chamber; 221. stirring shaft; 222. stirring blade; 231. pressure conveying pipe; 232. feeding port; 3. frame; 31. axial propulsion cylinder; 32. hydraulic motor DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. The examples described below are part of the present invention, not all of the examples. Based on the examples in the present invention, all other examples obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details do not have to be employed to practice the present invention. In other embodiments, in order to avoid confusing the present invention, known structures, materials, or methods are not specifically described. The materials, instruments, and reagents used in the following examples, unless otherwise specified, are commercially available. The technical means used in the examples, unless otherwise specified, are conventional means well known to those skilled in the art.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0030] Example:

[0031] Please also refer to Figures 1 to 6 As shown, this embodiment discloses a soil remediation treatment device for a solid waste treatment site, comprising a frame 3 and a treatment chamber 2 disposed on the frame 3. A deep drilling repair mechanism 1 is provided at the bottom of the treatment chamber 2. The deep drilling repair mechanism 1 comprises a drill rod 11 and a drill bit 12 disposed at the bottom end of the drill rod 11. The top end of the drill rod 11 is connected to a hydraulic motor 32 at the bottom of the frame 3, and an axial propulsion cylinder 31 is provided between the hydraulic motor 32 and the frame 3. The output end of the axial propulsion cylinder 31 is connected to the hydraulic motor 32 via a mounting plate. An outer cylinder 13 is also coaxially sleeved on the outside of the drill rod 11.

[0032] The outer wall of the outer cylinder 13 is provided with a plurality of repair areas 14 from top to bottom. Each of the repair areas 14 includes a plurality of annular grooves 141 formed on the outer wall of the outer cylinder 13. A guard plate 142 is installed in cooperation with the inner part of the groove 141. A pushing mechanism 143 is installed on the side of the guard plate 142 facing the groove 141. A plurality of retractable tapered tubes 144 are also provided on the surface of the guard plate. One end of the retractable tapered tube 144 is connected to a storage box 146 provided on the side of the top end of the outer cylinder 13 through a flexible delivery pipe 145 passing through the outer cylinder 13. The storage box 146 stores a first repair agent.

[0033] An annular channel 16 is formed between the outer cylinder 13 and the drill rod 11 , and a guide port 161 communicating with the annular channel 16 is formed between the bottom end of the outer cylinder 13 and the drill bit 12 .

[0034] Based on the above embodiment, the present application coaxially sleeves an outer cylinder 13 on the outside of the drill rod 11, so that the outer cylinder 13 and the drill rod 11 form an annular channel 16, and a guide port 161 is formed between the bottom end of the outer cylinder 13 and the drill bit 12, so that the deep soil debris loosened by the drill bit 12 is introduced into the annular channel 16 and transported to the processing chamber 2, providing raw materials for the ex situ remediation of the soil. At the same time, the outer wall remediation area 14 of the outer cylinder 13 is used to inject the first remediation agent in situ, forming a synergistic mechanism of "in situ remediation of deep pollution + ex situ treatment of drilled soil", realizing the synergy of in situ remediation and ex situ remediation, and can simultaneously deal with the remediation of complex pollution in the soil, overcoming the defects of the traditional technology that the in situ and ex situ remediation means are separated and difficult to coordinate the treatment of complex pollution;

[0035] Specifically, for in-situ repair, the present application is implemented by setting up a deep drilling repair mechanism 1: the deep drilling repair mechanism 1 includes a drill rod 11 and a drill bit 12, the axial propulsion cylinder 31 pushes the hydraulic motor 32 to drive the drill rod 11 to drive the drill bit 12 to drill down into the contaminated soil at different depths, and a plurality of repair areas 14 are set on the outer wall of the outer cylinder 13. A protective plate 142 is installed in the groove 141 of each repair area 14 through a pushing mechanism 143. When the equipment drills to a certain depth, the pushing mechanism 143 can correspondingly push out the protective plate 142 to make it fit the inner wall of the soil at that depth to form an "independent repair space". At this time, the surface of the protective plate 142 The retractable conical tube 144 is extended and inserted into the soil, and at the same time, the storage box conveys the first repair agent into the retractable conical tube 144 through the flexible conveying pipe 145, so as to accurately inject the first repair agent adapted to the deep pollution type into the soil of the corresponding depth, thereby realizing dynamic layered and precise delivery of the first repair agent, and directly repairing the deep soil, overcoming the defect of uneven natural diffusion of a single repair agent in traditional in-situ injection repair. Moreover, by adjusting the action sequence and agent ratio of the repair areas 14 at different heights of the outer cylinder 13, differentiated repair can be implemented for pollutants of different depths and types at the same time, and the repair efficiency is higher.

[0036] For ex situ remediation, the present application is achieved through the cooperation of the annular channel 16 and the processing chamber 2: the annular channel 16 formed by the outer cylinder 13 and the drill rod 11, and the guide port 161 between the bottom end of the outer cylinder 13 and the drill bit 12, are used to guide the deep soil debris loosened by the drill bit 12 into the annular channel 16 and transport it to the processing chamber 2, providing a basis for ex situ soil remediation treatment, overcoming the defect that traditional ex situ treatment cannot directly act on deep soil, and making it work in conjunction with the in situ remediation mode to further improve the equipment remediation treatment effect.

[0037] It should be understandable, such as Figure 2 As shown, the pushing mechanism 143 may be an electric push rod. The retractable conical tube 144 may be a three-section nested sleeve structure, specifically including a fixed section, a retractable section, and an injection section.

[0038] The fixed section is a hollow circular tube, fixed to a mounting hole pre-set on the surface of the guard plate 142 via a flange, and connected to the flexible delivery pipe 145 in the outer tube 13 via a connecting pipe. The telescopic section and the fixed section are slidably embedded. The injection section is a pointed conical structure, connected to the telescopic section at its bottom end, and multiple oblique injection holes are evenly distributed on its top tip. The telescopic section's telescopic movement is driven by a micro-hydraulic pump in the mounting hole. It should be noted that the specific structure and transmission method of the above-mentioned electric push rod and telescopic push rod are all prior art and are not specifically limited or further described in this application. Technicians can obtain relevant technical details through public channels. The above is only an example.

[0039] During specific implementation, when the deep drilling repair mechanism 1 is repairing, the pushing mechanism 143 pushes out the protective plate 142 and fits the inner wall of the soil, and the micro hydraulic pump is started to push the telescopic section to slide out from the fixed section, and the injection section extends with the telescopic section and penetrates into the soil. At this time, the first repair agent in the storage tank is injected into the soil from the injection hole through the main pipeline, the fixed section, and the spiral guide pattern of the telescopic section (to avoid turbulence). After the injection of the first repair agent is completed, the pushing mechanism 143 drives the protective plate 142 to shrink into the groove 141. At this time, the micro hydraulic pump reverses the oil pumping, so that the telescopic section is retracted under the suction action, so that the injection section is retreated to the preset installation hole on the surface of the protective plate 142.

[0040] Preferably, the first repair agent is a liquid preparation, specifically a liquid heavy metal chelate liquid, which, after being injected through the telescopic conical tube 144, can quickly form soluble chelates with heavy metal ions such as lead and copper in deep soil to reduce the resistance to heavy metal migration.

[0041] In some preferred embodiments, as shown in FIG3 , the top end of the outer cylinder 13 is connected to the hydraulic motor 32 via a transmission gear set 15 , and the output end of the hydraulic motor 32 is connected to the top end of the drill rod 11 via a rotating shaft.

[0042] It should be added that the transmission gear set 15 includes a driving gear 151 keyed to the outside of the rotating shaft, a driven gear 152 meshingly arranged around the driving gear 151 and installed with the connecting plate, and a ring gear 153 meshingly sleeved around the driven gear 152 and fixedly connected to the outer cylinder 13. That is, the driving gear 151, the driven gear 152 and the ring gear 153 constitute a planetary gear set, and the outer cylinder 13 rotates in the opposite direction to the drill rod 11 through the planetary gear set.

[0043] Based on the above embodiment, a transmission gear set 15 is provided between the outer cylinder 13 and the hydraulic motor 32, and the transmission gear set 15 is a planetary gear set, so that when the hydraulic motor 32 drives the drill rod 11 to rotate, the outer cylinder 13 is synchronously driven to rotate in the opposite direction, that is, the outer cylinder 13 and the drill rod 11 are rotated in the opposite direction to cooperate with each other, so that when the drill bit 12 drills into the deep soil for ectopic repair treatment, the reverse rotation of the outer cylinder 13 and the drill rod 11 can make the broken soil debris particles more easily enter the guide port 161 and the annular channel 16 and flow quickly. The rotation of the outer cylinder 13 can form a shear force field through the friction between the guard plate 142 and the inner wall of the soil, so that the broken soil particles enter the annular channel 16 under the push of the shear force field, and enter the annular channel 16. The soil debris particles in the annular channel 16 rub against each other after being subjected to the reverse rotation of the inner wall of the outer cylinder 13 and the outer wall of the drill rod 11, so as to generate an axial force along the annular channel 16, thereby facilitating the rapid flow of the soil debris particles in the annular channel 16 to avoid the adhesion of soil particles and the clogging of the annular channel 16. At the same time, when the first repair agent performs in-situ deep drilling repair, the reverse rotation of the outer cylinder 13 will drive the guard plate 142 of the repair area 14 to rotate synchronously, so that the first repair agent injected by the telescopic conical tube 144 forms a spiral diffusion path in the soil (forming a similar "stirring paddle" effect), thereby facilitating it to break the pore structure inside the deep soil agglomerates and promote the penetration and diffusion of the curing agent and repair agent, so as to further improve the soil repair effect.

[0044] In a further embodiment, a shearing and pushing assembly is provided in the annular channel 16, and the shearing and pushing assembly includes a spiral blade 171 and a spiral ridge 172. The spiral blade 171 is fixed to the outer wall of the drill pipe 11 and is distributed in a clockwise direction. The spiral ridge 172 is fixed to the inner wall of the outer cylinder 13 and is distributed in a counterclockwise direction.

[0045] Based on the above embodiment, the shearing and pushing assembly in the annular channel 16 can quickly break up and push the block polymers in the soil debris particles entering therein to reduce adhesion and blockage, thereby facilitating the rapid passage of the soil debris particles through the annular channel 16 and improving the equipment repair and processing efficiency.

[0046] In some preferred embodiments, Figure 1 As shown, the processing chamber 2 is connected to the annular channel 16 through a circulation pipe, and the circulation pipe is used to extract the mud blocks and slag in the annular channel 16 into the processing chamber 2, and after being repaired by the processing chamber 2, it is transported to the annular channel 16 through the circulation pipe.

[0047] It should be further explained here that the annular channel 16 in the above embodiment is not only a soil debris conveying passage when the drill rod 11 drills deep for repair, but also serves as a soil debris return passage after being processed by the treatment chamber 2. That is to say, in the present application, the two-way passage formed by the treatment chamber 2 and the annular channel 16 through the circulation pipeline realizes the closed-loop treatment process of ex-situ repair treatment of drilled soil and backfilling of deep soil after repair treatment, so that the repair treatment equipment can realize the backfilling work of deep soil after repair treatment without other additional backfilling equipment, further improving the use effect of the equipment, and ensuring the integrity of deep soil repair, while also restoring the physical structure stability of the original soil.

[0048] Specifically, when the annular channel 16 extracts the drilled soil blocks and slag through the circulation pipeline to the processing chamber 2, and after the ex-situ repair treatment, the repaired qualified soil needs to be returned to the deep original drill hole, the equipment is in the withdrawal process of the drill bit 12 and the drill rod 11 (not drilling, that is, the axial propulsion cylinder 31 drives the hydraulic motor 32 to move upward), and the drill rod 11 rotates and withdraws in the opposite direction of the initial drilling (when drilling, the drill rod 11 rotates forward, and the spiral blade 171 pushes the soil upward to the processing chamber 2, and rotates in the opposite direction when withdrawing), thereby making the clockwise rotation of the drill bit 12 and the drill rod 11 rotate in the opposite direction of the initial drilling. The needle spiral blade 171 forms a downward pushing force due to the reverse rotation, and cooperates with the reverse rotation of the counterclockwise spiral ridge 172 on the inner wall of the outer cylinder 13. The force fields of the two are superimposed, and the treated soil is pushed directionally along the annular channel 16 to the deep drill hole. The reverse rotating spiral blade 171 presses down on the soil during backfilling to make the soil densely backfilled, avoid stratification or gaps during soil backfilling, reduce the risk of secondary pollution caused by loose structure of the repaired soil, and at the same time ensure the integrity of deep soil repair and restore the physical structure stability of the original soil.

[0049] In some preferred embodiments, Figure 1 As shown in the figure, the interior of the processing chamber 2 is divided into a filter chamber 21 and a mixing chamber 22 from top to bottom. The bottom of the filter chamber 21 is separated from the mixing chamber 22 by a vibrating screen 211. The mixing chamber 22 is provided with a stirring mechanism and a feeding piece. The stirring mechanism includes a stirring shaft 221 and stirring blades 222. The stirring shaft 221 is rotatably arranged inside the mixing chamber 22, and the stirring blades 222 are spirally staggered outside the stirring shaft 221. The feeding piece is used to synchronously feed the second repair agent when the stirring shaft 221 drives the stirring blades 222 to rotate and stir.

[0050] It should be understood that the mesh body of the vibrating screen 211 can be made of a stainless steel woven mesh, the edge of which is connected to the inner wall of the processing chamber 2 through a spring shock absorber, and a vibration motor is provided at the bottom of the screen. When the soil debris transported by the annular channel 16 enters the filter chamber 21, the vibration motor starts, driving the screen to generate high-frequency vibrations, so that the solid pollutants in the soil are filtered and retained in the filter chamber 21, while the soil particles that meet the particle size requirements fall into the mixing chamber 22 through the mesh. The rotation of the stirring shaft 221 is driven by the stirring motor, and the stirring motor is correspondingly installed on the frame 3. Its output shaft is connected to the stirring shaft 221 through a transmission belt to the bottom end of the lower part of the frame 3. When the filtered soil enters the mixing chamber 22, the stirring motor starts to work and drives the stirring shaft 221 to rotate through the transmission drive of the output shaft to stir the soil in the mixing chamber 22. It should be noted that the structure and vibration mode of the above-mentioned vibrating screen 211 and the structure and transmission mode of the stirring motor are all existing technologies. This application does not specifically limit or further elaborate on them. Technicians can obtain relevant technical details through public channels.

[0051] In this embodiment, a filter chamber 21 and a mixing chamber 22 are provided in the processing chamber 2, and the filter chamber 21 and the mixing chamber 22 are separated by a vibrating screen 211. This can pre-screen and filter some solid contaminants in the soil debris entering the processing chamber 2 (in the contaminated soil of the solid waste treatment site, large-sized solid pollutants such as construction waste fragments and industrial waste residues are often mixed) to ensure that the soil particles entering the processing chamber 2 meet the remediation requirements, thereby preventing solid contaminants from following the soil particles into the mixing chamber 22 and affecting the soil remediation effect. At the same time, a stirring mechanism and a feeding piece are provided in the mixing chamber 22, so that when the filtered soil debris particles are repaired, a dynamic remediation process of stirring and mixing is formed, thereby achieving uniform dispersion of the second remediation agent and soil particles, avoiding the occurrence of remediation dead corners during soil remediation, and improving the equipment remediation treatment effect.

[0052] In addition, a waste pipe is provided on the side of the filter chamber 21 , through which the solid pollutants filtered by the vibrating screen 211 in the filter chamber 21 are discharged.

[0053] In some preferred embodiments, the second remediation agent is a solid formulation encapsulated in microcapsules. This not only resists the destruction of the active ingredients by stirring and shearing forces, but also allows for gradual release through the stirring of the microcapsule walls in the soil, precisely matching the mixing reaction cycle with the soil in the treatment chamber 2. This allows for synergy with the first remediation agent of the deep drilling remediation mechanism 1 to thoroughly remediate the contaminated soil. For example, the second remediation agent is specifically hydroxyapatite microcapsules encapsulated in a modified gelatin-sodium alginate composite membrane. After being released through stirring and shearing in the treatment chamber 2, it undergoes a co-precipitation reaction with the chelated heavy metals to form stable metal phosphates, resulting in progressive remediation.

[0054] This can avoid the problem that the directly added second repair agent is prone to molecular chain breakage or bacterial rupture due to the strong shear force generated by the high-speed rotation of the stirring blade 222 due to the lack of corresponding protective structure, resulting in loss of activity and unstable repair effect. At the same time, it can further improve the equipment's repair efficiency and stability of the soil, ensuring better soil repair effect.

[0055] In a further preferred embodiment, Figure 1 and Figure 4 As shown, the feeding part includes a pressure delivery pipe 231 and a feeding port 232. The pressure delivery pipe 231 is passed through the stirring shaft 221, and one end of the pressure delivery pipe 231 extends to the bottom end of the stirring shaft 221 to form a feeding port. The feeding port is used to add the second repair agent and pressurize it to the feeding port 232 through the pressure delivery pipe 231. The feeding port 232 is correspondingly arranged at the edge of the stirring blade 222.

[0056] It should be understood that the pressure delivery pipe 231 can be connected to an external pressurizing device (such as a pressure delivery pump) in order to deliver the second repair agent from the feeding port at the bottom end of the stirring shaft 221 to the feeding port 232 at the edge of the stirring blade 222 by increasing the pressure.

[0057] During specific implementation, the pressure delivery pipe 231 delivers the second repair agent (in the form of microcapsules) from the feeding port to the pipe passing through the stirring shaft 221, and finally sprays it out through the feeding port 232 corresponding to the edge of the stirring blade 222. At this time, the edge of the high-speed rotating stirring blade 222 forms a strong shear force field, so that the sprayed microcapsules are sheared at their edges, thereby completing initial rupture and releasing repair components at the moment of contact with soil particles. At the same time, the second repair agent in the form of microcapsules is thrown into the gaps between soil particles through the centrifugal action of the stirring blade 222, and follows the three-dimensional stirring action of the soil particles to achieve uniform dispersion.

[0058] In a further preferred embodiment, a sealing ring disk 18 is further provided at the top position of the annular channel 16 , the inner wall of the sealing ring disk 18 is rotationally sealed with the drill pipe 11 , and the outer wall of the sealing ring disk 18 is rotationally sealed with the outer cylinder 13 .

[0059] In the above embodiment, the sealing ring disc 18 is used to ensure that the outer cylinder 13 and the drill rod 11 always rotate coaxially during the process of relative counter-rotation, thereby avoiding radial displacement between the two, which would lead to uneven gaps in the annular channel 16 (such as local gaps that are too small causing jamming and too large causing soil leakage), affecting the stable transportation of soil debris, and effectively preventing soil debris from overflowing from the top of the annular channel 16.

[0060] In a further embodiment, Figure 5As shown, a first through hole 181 and a second through hole 182 are respectively opened on both sides of the upper portion of the sealing ring disk 18 . The first through hole 181 is connected to the filter chamber 21 , and the second through hole 182 is connected to the mixing chamber 22 .

[0061] The first through holes 181 on both sides of the upper part of the sealing ring disk 18 are connected to the filter chamber 21, and the second through holes 182 are connected to the mixing chamber 22. The core of the through holes 181 is to form a directional and separated material flow path between the annular channel 16 and the filter chamber 21 and the mixing chamber 22 of the processing chamber 2 to adapt to the "screening-repair treatment-backfilling" ex situ repair process. Specifically, when the annular channel 16 transports deep soil debris drilled by the drill bit 12, the soil debris is accurately introduced into the filter chamber 21 through the first through hole 181. After being screened and removed from large impurities by the vibrating screen 211, the filtered soil particles enter the mixing chamber 22 again. The soil in the mixing chamber 22 that has been repaired can flow back to the annular channel 16 through the second through hole 182, so that it can be transported to the deep soil through reverse rotation when the drill rod 11 withdraws to complete rapid backfilling, thereby improving the equipment repair and treatment efficiency.

[0062] In a further specific embodiment, the circulation pipe includes a first branch pipe and a second branch pipe, one end of the first branch pipe is connected to the first through hole 181 through an electronic valve, and the other end is connected to the filter chamber 21, one end of the second branch pipe is connected to the second through hole 182 through an electronic valve, and the other end is connected to the mixing chamber 22.

[0063] Further Figure 6 As shown, the first branch pipe and the second branch pipe both pass through the gap between the transmission gear set 15 and communicate with the processing chamber 2.

[0064] Based on the above embodiment, the circulation pipeline includes a first branch pipe and a second branch pipe, which realizes the unidirectional flow of soil particles between the annular channel 16 and the treatment chamber 2. Specifically, the first branch pipe serves as a conveying passage for the soil to be treated, so that the loosened soil particles can be conveyed to the filter chamber 21 during in-situ deep drilling and repair. The second branch pipe serves as a backfill passage for the repaired soil. After the repair treatment is completed, the drill rod 11 withdraws and the soil mixed and dispersed evenly with the second repair agent in the mixing chamber 22 flows unidirectionally into the annular channel 16 and is backfilled to prevent the untreated soil from mixing with the repaired soil, thereby improving the reliability of the equipment operation, and seamlessly connecting the two processes of in-situ deep drilling and transportation and ex-situ repair and backfilling, thereby greatly shortening the repair cycle and improving the repair treatment efficiency.

[0065] It should be noted that the processing device of the present application is connected to the mains power through the wires outside the device when in use, and in the present application, the rotating, sliding, meshing and other moving parts are well lubricated, and their outsides are provided with corresponding protective shells. However, in the drawings of the present application, in order to clearly indicate the connection status of each moving part, it is not shown. It can also be understood that each component in the present application is made of metal or plastic material with adaptable strength in the field to which it belongs to ensure that its structural rigidity meets actual needs.

[0066] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are schematic diagrams, which serve only to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0067] At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A soil remediation treatment device for a solid waste treatment site, comprising a frame (3) and a treatment chamber (2) arranged on the frame (3), wherein a deep drilling repair mechanism (1) is provided at the bottom of the treatment chamber (2), characterized in that: The drilling depth repair mechanism (1) comprises a drill rod (11) and a drill bit (12) arranged at the bottom end of the drill rod (11); the top end of the drill rod (11) is connected to a hydraulic motor (32) at the bottom of a frame (3); an axial propulsion oil cylinder (31) is provided between the hydraulic motor (32) and the frame (3); the output end of the axial propulsion oil cylinder (31) is connected to the hydraulic motor (32) via a mounting plate; an outer cylinder (13) is also coaxially sleeved on the outside of the drill rod (11); The outer wall of the outer cylinder (13) is provided with a plurality of repair areas (14) from top to bottom, each of the repair areas (14) includes a plurality of grooves (141) annularly opened on the outer wall of the outer cylinder (13), a guard plate (142) is installed in the interior of the groove (141), a pushing mechanism (143) is installed on the side of the guard plate (142) facing the groove (141), and a plurality of retractable conical tubes (144) are further provided on the surface of the guard plate (142), one end of the retractable conical tube (144) is connected to a storage box (146) provided on the top side of the outer cylinder (13) through a flexible delivery pipe (145) passing through the outer cylinder (13), and a first repair agent is stored in the storage box (146); An annular channel (16) is formed between the outer cylinder (13) and the drill rod (11), and a flow guide port (161) communicating with the annular channel (16) is formed between the bottom end of the outer cylinder (13) and the drill bit (12).

2. The soil remediation equipment for solid waste disposal sites according to claim 1, characterized in that: The top end of the outer cylinder (13) is connected to the hydraulic motor (32) via a transmission gear set (15), and the output end of the hydraulic motor (32) is connected to the top end of the drill rod (11) via a rotating shaft.

3. The soil remediation equipment for solid waste disposal sites according to claim 2, characterized in that: A shearing and pushing assembly is provided in the annular channel (16), and the shearing and pushing assembly includes a spiral blade (171) and a spiral ridge (172). The spiral blade (171) is fixed to the outer wall of the drill rod (11) and is distributed in a clockwise direction, and the spiral ridge (172) is fixed to the inner wall of the outer cylinder (13) and is distributed in a counterclockwise direction.

4. The soil remediation equipment for solid waste disposal sites according to claim 1, characterized in that: The processing chamber (2) and the annular channel (16) are connected via a circulation pipeline, and the circulation pipeline is used to extract the mud slag in the annular channel (16) into the processing chamber (2), and after being repaired and treated in the processing chamber (2), the mud slag is transported to the annular channel (16) via the circulation pipeline.

5. The soil remediation equipment for solid waste disposal sites according to claim 4, characterized in that: The interior of the processing chamber (2) is divided into a filter chamber (21) and a mixing chamber (22) from top to bottom. The bottom of the filter chamber (21) is separated from the mixing chamber (22) by a vibrating screen (211). A stirring mechanism and a feeding piece are arranged in the mixing chamber (22). The stirring mechanism comprises a stirring shaft (221) and stirring blades (222). The stirring shaft (221) is rotatably arranged in the interior of the mixing chamber (22), and the stirring blades (222) are spirally staggered and arranged outside the stirring shaft (221). The feeding piece is used to synchronously feed a second repairing agent when the stirring shaft (221) drives the stirring blades (222) to rotate and stir.

6. The soil remediation equipment for solid waste disposal sites according to claim 5, characterized in that: The feeding member comprises a pressure delivery pipe (231) and a feeding port (232). The pressure delivery pipe (231) is arranged inside the stirring shaft (221), and one end of the pressure delivery pipe extends to the bottom end of the stirring shaft (221) to form a feeding port. The feeding port is used to add a second repairing agent and to deliver the second repairing agent to the feeding port (232) under pressure through the pressure delivery pipe (231). The feeding port (232) is correspondingly arranged at the edge of the stirring blade (222).

7. The soil remediation equipment for solid waste disposal sites according to claim 5, characterized in that: A sealing ring disc (18) is also provided at the top end of the annular channel (16). The inner wall of the sealing ring disc (18) is rotationally sealed with the drill rod (11), and the outer wall of the sealing ring disc (18) is rotationally sealed with the outer cylinder (13).

8. The soil remediation equipment for solid waste disposal sites according to claim 7, characterized in that: A first through hole (181) and a second through hole (182) are respectively provided on both sides of the upper portion of the sealing ring disc (18); the first through hole (181) is connected to the filter chamber (21); and the second through hole (182) is connected to the mixing chamber (22).

9. The soil remediation equipment for solid waste disposal sites according to claim 8, characterized in that: The circulation pipeline comprises a first branch pipe and a second branch pipe, one end of the first branch pipe is connected to the first through hole (181) through an electronic valve, and the other end is connected to the filter chamber (21), and one end of the second branch pipe is connected to the second through hole (182) through an electronic valve, and the other end is connected to the mixing chamber (22).

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