Soil remediation equipment for solid waste treatment

Abstract

The invention relates to the technical field of waste treatment, and discloses soil remediation equipment for solid waste treatment, which comprises a working bin consisting of an upper mixing bin and a lower mixing bin, a feeding hole is formed in the front end of the lower mixing bin, material passing holes are formed in the upper end and the lower end of the upper mixing bin, and crushing rollers are symmetrically arranged in the upper mixing bin left and right; a filter cartridge is further arranged in the upper side mixing bin, and the front end and the rear end of the filter cartridge are rotationally connected to the inner wall of the working bin through gear rings. The soil remediation equipment for solid waste treatment can effectively solve the problems that in the prior art, when a remediation agent is stirred and mixed, active agents are mixed unevenly, consequently, the pollutant removal rate fluctuation is large, the effect is unstable, the local agent concentration is too high, soil property deterioration is induced, or secondary aggregates are formed due to uneven mixing, and the remediation effect is poor. The reutilization performance of the repaired soil is influenced; due to the fact that the density exists between the repairing agent and the soil, the uniform mixing effect is not easy to achieve in a conventional repairing agent adding and mixing mode.

Description

Technical Field

[0001] This invention relates to the field of waste management technology, and more specifically to a soil remediation device that utilizes solid waste management. Background Technology

[0002] With the acceleration of industrialization and urbanization, the output of solid waste has surged. The improper disposal and landfilling of solid waste, leading to the migration and diffusion of heavy metals and persistent organic pollutants into the surrounding soil environment, has become a serious problem threatening ecosystem security and human health. Using specially treated solid waste as a remediation agent to treat contaminated soil is a viable option due to its ability to achieve "waste-to-waste" treatment, resource recycling, and cost control. In this technical approach, the thorough and uniform mixing of the remediation agent with the contaminated soil is the core step determining the pollutant fixation / degradation efficiency and long-term stability. The mainstream mixing process typically includes steps such as soil breaking, remediation agent addition, initial mixing, deep mixing, and homogenization stabilization.

[0003] In response to this, this application designs a soil remediation device that utilizes solid waste treatment. Existing soil remediation equipment often requires the use of a remediation agent formed by mixing solid waste with a liquid activator. This process can result in uneven particle size of the solid waste, leading to uneven mixing of the sprayed active agent. Inconsistent agent concentrations hinder the full utilization of the remediation agent's activity, cause large fluctuations in pollutant removal rates and unstable effects, and may induce soil deterioration due to excessively high local agent concentrations or form secondary aggregates due to uneven mixing, affecting the reuse performance of the remediated soil. Furthermore, due to the significant density difference, viscosity, and agglomeration effect between the remediation agent and the soil, conventional methods of adding and mixing remediation agents are not easy to achieve a uniform mixing effect. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a soil remediation device utilizing solid waste treatment. This device effectively solves the problems in existing technologies, such as uneven mixing of active agents during the mixing of remediation agents, leading to large fluctuations in pollutant removal rates and unstable effects; excessively high local agent concentrations inducing soil deterioration; and the formation of secondary aggregates due to uneven mixing, affecting the reusability of the remediated soil. Furthermore, due to the density difference between the remediation agent and the soil, conventional remediation agent mixing methods often fail to achieve uniform mixing.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a soil remediation device utilizing solid waste treatment, comprising:

[0007] The working chamber consists of two mixing chambers, an inlet at the front of the lower mixing chamber and a discharge port at both the top and bottom of the upper mixing chamber. Crushing rollers are symmetrically arranged inside the upper mixing chamber, and a filter cylinder is also installed inside the upper mixing chamber. The front and rear ends of the filter cylinder are rotatably connected to the inner wall of the working chamber through a toothed ring. The filter cylinder is equipped with a crushing part. Both the upper and lower mixing chambers are equipped with mixing parts, and both the upper and lower mixing chambers are equipped with a distribution part.

[0008] The crushing section includes filter panels located inside the filter cylinder, which are symmetrically arranged with corresponding upper and lower notches. Each filter panel on the left and right sides has a side plate at its opposite end. Hollow shafts are installed on the opposite ends of the front and rear toothed rings corresponding to multiple filter panels. Each corresponding filter panel, side plate, and hollow shaft is provided with an opening and closing assembly.

[0009] The mixing section includes a mixing seat installed on the inner wall of the working chamber. Paddle-type stirring shafts are symmetrically arranged on the upper side of the mixing seat. A screw rod is arranged on the lower side of the middle of the paddle-type stirring shafts on both sides. A feeding group is arranged on the working chamber.

[0010] The distribution section includes a second spiral rod located on the upper side of the working chamber and the lower side of the mixing chamber.

[0011] Furthermore, the opening and closing assembly includes a rotating shaft installed at the opposite ends of the left and right filter panels. Multiple bushings are evenly installed on the side plate near the filter panel and rotated on the rotating shaft. Limiting holes are opened on the outer walls of the bushings and the hollow shaft, and limiting plates are movably fitted on the inner walls of the limiting holes by tension springs. The limiting plates are fixedly connected to the rotating shaft.

[0012] Furthermore, the opening and closing assembly also includes magnetic baffles that are symmetrically installed on the inner wall of the filter cartridge corresponding to the left and right filter panels. The opposite ends of the left and right filter panels are slidably fitted with magnetic sleeves by compression springs. Vertical plates are symmetrically installed on the inner wall of the filter cartridge corresponding to the left and right filter panels. Electromagnets are embedded on the vertical plates corresponding to the magnetic sleeves.

[0013] Furthermore, both ends of the paddle-type stirring shaft rotatably pass through the working chamber and are rotatably fitted with mounting seats fixedly connected to the outer wall of the working chamber. Both ends of the spiral rod rotatably pass through the working chamber. A rotary joint is also rotatably fitted at the front end of the paddle-type stirring shaft. A docking groove is opened on the outer wall of the paddle-type stirring shaft corresponding to the rotary joint. Multiple flow channels are evenly distributed in a circle on the inner wall of the rear end of the docking groove. Multiple microholes are also evenly distributed in a circle on the outer wall of the paddle-type stirring shaft, and the multiple microholes are respectively connected to the corresponding flow channels.

[0014] Furthermore, the feeding assembly includes a sliding hole located at the rear end of the mixing chamber. A blocking slide is slidably installed on the inner wall of the sliding hole and slidably sleeved on the outer wall of the screw rod. Extension plates are symmetrically installed on the outer wall of the blocking slide. The extension plates on both sides are connected to the outer wall of the working chamber by tension springs. The bottom of the mixing chamber and the mixing seat are provided with a feeding port corresponding to the blocking slide.

[0015] Furthermore, the distribution section also includes a cover plate installed on the inner walls of the front and rear ends of the working chamber. The upper end of the cover plate is fixedly connected to the upper mixing chamber, and multiple sets of material dropping holes are evenly distributed in a circle on the outer wall of the cover plate. Guide plates are symmetrically installed on the left and right sides of the outer wall of the cover plate, and multiple sets of material dropping holes are also evenly distributed from left to right on the upper end of the guide plates.

[0016] Furthermore, side baffles are provided at the opposite ends of the left and right crushing rollers. The left crushing roller and the side baffle are rotatably inserted through the working chamber at both ends. The working chamber has waist-shaped holes at both ends. The right crushing roller and the side baffle are slidably connected to the inner wall of the waist-shaped holes at both ends. An adjusting plate is fixedly sleeved on the right crushing roller. A guide rod that slides through the adjusting plate is installed on the outer wall of the working chamber.

[0017] Furthermore, symmetrical through holes are provided on the outer wall of the working chamber. A drive shaft is rotatably mounted on the outer wall of the working chamber via a mounting base. Drive gears are installed in the corresponding through holes at both ends of the drive shaft. The drive gears on the front and rear sides mesh with the corresponding toothed rings on the filter cartridge.

[0018] The technical solution provided by this invention has the following advantages compared with the prior art:

[0019] This invention provides a soil remediation device utilizing solid waste treatment. During the preparation of the remediation agent, two rotating joints on the upper left and right sides rotate in opposite directions to uniformly tumble the powder. A spiral rod on the upper side also stirs the powder at the bottom, further enhancing the stirring effect. This avoids the problem of inconsistent agent concentrations due to uneven powder particle size and the difficulty in uniform mixing with conventional sprayed active agents, which hinders the full activity of the remediation agent. Furthermore, excessively high local agent concentrations can induce soil degradation and form secondary agglomerates, affecting the reuse performance of the remediated soil. The active agent is input into the corresponding docking groove through the rotating joints and sprayed out through multiple micro-holes corresponding to multiple flow channels. This achieves the effect of uniformly adding the active agent while stirring the powder, ensuring a more thorough and uniform mixing until the powder and active agent are fully mixed to form the remediation agent.

[0020] When the remediation agent is discharged, one of the paddle-type stirring shafts is reversed by external drive control. At this time, the remediation agent will gradually move upward to the blockage slide and apply extrusion pressure as the first screw and the two left and right paddle-type stirring shafts rotate. Until the remediation agent squeezes the blockage slide to the outside of the working chamber, the remediation agent can then fall intermittently into the cover plate from the discharge port. At this time, the second screw will drive the remediation agent to move slowly forward, thereby realizing the remediation agent being put into the mixing seat in a multi-point uniform distribution manner. This avoids the problem that it is not easy to achieve uniform mixing due to the significant density difference, viscosity and agglomeration effect between the remediation agent and the soil. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of a partial three-dimensional cross-section in an embodiment of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the crushing roller, side baffle, and adjusting plate in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional separation of the filter cartridge and the opening / closing assembly in an embodiment of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the filter panel, side panel, and opening / closing assembly in an embodiment of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of point X in the middle;

[0028] Figure 7 For the present invention Figure 5 Enlarged view of point Y in the middle;

[0029] Figure 8 This is a schematic diagram of a partial three-dimensional cross-section of the working chamber in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the three-dimensional separation structure of the mixing section in an embodiment of the present invention;

[0031] Figure 10This is a schematic cross-sectional view of the three-dimensional separation of the paddle-type stirring shaft and the rotary joint in an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the three-dimensional working state transformation structure of the filter cartridge and the opening / closing assembly in an embodiment of the present invention.

[0033] The labels in the diagram represent: 1. Working chamber; 2. Crushing roller; 21. Side baffle; 22. Adjusting plate; 23. Guide rod; 3. Filter cartridge; 4. Crushing section; 41. Filter panel; 42. Side plate; 43. Hollow shaft; 44. Opening and closing assembly; 441. Bushing; 442. Limiting plate; 443. Magnetic baffle; 444. Magnetic sleeve plate; 445. Vertical plate; 446. Electromagnet; 5. Mixing section; 51. Mixing seat; 52. Paddle-type stirring shaft; 521. Rotary joint; 53. Spiral rod one; 54. Discharge assembly; 541. Blocking slide; 542. Extension plate; 6. Distribution section; 61. Spiral rod two; 62. Cover plate; 63. Guide plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to embodiments.

[0036] Example:

[0037] Please see Figures 1-11 This invention provides a technical solution: a soil remediation device utilizing solid waste treatment, comprising:

[0038] The working chamber 1 consists of two mixing chambers, an upper and a lower one. The lower mixing chamber has a feed inlet at the front end, and the upper mixing chamber has a feed outlet at both the upper and lower ends. Crushing rollers 2 are symmetrically arranged inside the upper mixing chamber. A filter cylinder 3 is also arranged inside the upper mixing chamber. The front and rear ends of the filter cylinder 3 are rotatably connected to the inner wall of the working chamber 1 through a toothed ring. A crushing part 4 is arranged on the filter cylinder 3. A mixing part 5 is arranged in both the upper and lower mixing chambers. A distribution part 6 is arranged on both the upper and lower mixing chambers.

[0039] The crushing section 4 includes filter panels 41 located inside the filter cylinder 3, which are symmetrically arranged on the left and right sides corresponding to the upper and lower notches. Each filter panel 41 on the left and right sides is provided with a side plate 42 at the opposite ends. Hollow shafts 43 are installed on the opposite ends of the front and rear toothed rings corresponding to multiple filter panels 41. An opening and closing assembly 44 is provided on each corresponding filter panel 41, side plate 42 and hollow shaft 43.

[0040] The mixing unit 5 includes a mixing seat 51 installed on the inner wall of the working chamber 1. The mixing seat 51 is symmetrically provided with paddle-type stirring shafts 52 on the upper side. The paddle-type stirring shafts 52 on the left and right sides are provided with a spiral rod 53 on the lower side of the middle part of the paddle-type stirring shafts 52 on the left and right sides. The working chamber 1 is provided with a feeding group 54.

[0041] The distribution section 6 includes a second screw rod 61 located on the lower side of the mixing chamber above the working chamber 1. The second screw rod 61 and the upper screw rod 53 are connected by a synchronous belt.

[0042] The opening and closing assembly 44 includes a rotating shaft installed at the opposite ends of the left and right filter panels 41. A plurality of bushings 441 are evenly installed on the side plate 42 near the filter panel 41 and are rotatably sleeved on the rotating shaft. Limiting holes are respectively opened on the outer walls of the bushings 441 and the hollow shaft 43. Limiting plates 442 are movably fitted on the inner walls of the limiting holes by tension springs. The limiting plates 442 are fixedly connected to the rotating shaft. The opening angles of the limiting holes on the bushings 441 and the hollow shaft 43 are different, and the corresponding installation angles of the limiting plates 442 are also different.

[0043] The opening and closing assembly 44 also includes magnetic baffles 443 symmetrically installed on the inner wall of the filter cartridge 3, corresponding to the left and right filter panels 41. The left and right side plates 42 are magnetically connected to the corresponding magnetic baffles 443 at their respective ends near the filter cartridge 3. The opposite ends of the left and right filter panels 41 are slidably fitted with magnetic sleeves 444 by compression springs (not shown in the figure). Vertical plates 445 are symmetrically installed on the inner wall of the filter cartridge 3, corresponding to the left and right filter panels 41. Electromagnets 446 are embedded on the vertical plates 445 corresponding to the magnetic sleeves 444. The front and rear ends of the left and right magnetic sleeves 444 are magnetically connected to the corresponding electromagnets 446.

[0044] The paddle-type stirring shaft 52 is rotatably inserted through the working chamber 1 at both ends, and is rotatably fitted with a mounting seat fixedly connected to the outer wall of the working chamber 1. The spiral rod 53 is rotatably inserted through the working chamber 1 at both ends. The front end of the paddle-type stirring shaft 52 is also rotatably fitted with a rotary joint 521. A docking groove is opened on the outer wall of the paddle-type stirring shaft 52 corresponding to the rotary joint 521. Multiple flow channels are evenly distributed in a circle on the inner wall of the rear end of the docking groove. Multiple microholes are also evenly distributed in a circle on the outer wall of the paddle-type stirring shaft 52, and the multiple microholes are respectively connected to the corresponding flow channels.

[0045] The feeding assembly 54 includes a sliding hole at the rear end of the mixing chamber. A blocking slide 541 is slidably installed on the inner wall of the sliding hole and slidably sleeved on the outer wall of the screw rod 53. Extension plates 542 are symmetrically installed on the outer wall of the blocking slide 541. The extension plates 542 on both sides are connected to the outer wall of the working chamber 1 by tension springs. The bottom of the mixing chamber and the mixing seat 51 are provided with a feeding port corresponding to the blocking slide 541.

[0046] The distribution section 6 also includes a cover plate 62 installed on the inner walls of the front and rear ends of the working chamber 1. The upper end of the cover plate 62 is fixedly connected to the upper mixing chamber, and multiple sets of material dropping holes are evenly distributed in a circle on the outer wall of the cover plate 62. Guide plates 63 are symmetrically installed on the left and right sides of the outer wall of the cover plate 62, and multiple sets of material dropping holes are also evenly distributed from left to right on the upper end of the guide plates 63.

[0047] Side baffles 21 are provided at the opposite ends of the left and right crushing rollers 2. The left crushing roller 2 and the side baffle 21 are rotatably connected to the working chamber 1 at both ends. The working chamber 1 has waist-shaped holes at both ends. The right crushing roller 2 and the side baffle 21 are slidably connected to the inner wall of the waist-shaped holes at both ends. An adjusting plate 22 is fixedly sleeved on the right crushing roller 2. A guide rod 23 is installed on the outer wall of the working chamber 1 and slides through the adjusting plate 22.

[0048] The outer wall of the working chamber 1 has symmetrical through holes at the front and back. A drive shaft is rotatably mounted on the outer wall of the working chamber 1 via a mounting base. Drive gears are installed in the corresponding through holes at both ends of the drive shaft. The drive gears on the front and back sides mesh with the corresponding toothed rings on the filter cartridge 3.

[0049] In practice:

[0050] First, the crushing section 4, mixing section 5 and distributing section 6 in this application work together to achieve the cyclic crushing of solid waste to a specified particle size. After adding active agents and mixing, a remediation agent can be obtained. The remediation agent is then evenly added to the soil to be remediated and uniformly mixed for remediation.

[0051] It should be noted that the upper and lower notches of the filter cartridge 3 initially correspond to the upper and lower feed inlets, respectively. The filter panels 41, side plates 42, and vertical plates 445 on the upper and lower sides respectively form the upper and lower storage chambers. Under the action of the tension spring, the left and right side plates 42 on the upper and lower sides are initially magnetically connected to the corresponding magnetic baffles 443. The two electromagnets 446 on the upper side initially stop working. At this time, the two filter panels 41 on the upper side are closed by the cooperation of the tension spring and the magnetic sleeves 444, relying only on the mutual magnetic attraction of the two magnetic sleeves 444. The two electromagnets 446 on the lower side initially start working. At this time, the two filter panels 41 on the lower side are in a closed state. With the combined action of the tension spring and the magnetic sleeve 444, not only are the two magnetic sleeves 444 magnetically attracted to each other to be in the closed state, but the two electromagnets 446 on the lower front and rear sides will also be magnetically connected to the corresponding magnetic sleeves 444 respectively, further strengthening the magnetic attraction of the two magnetic sleeves 444 on the lower left and right sides, and preventing them from being squeezed by the subsequently falling powder and changing from the closed state to the open state. It should also be noted that, due to the different properties of the soil to be repaired, different repair agents need to be selected, such as lime, steel slag and biochar, etc. The specified particle size required for various repair agents is also different. According to the use environment of the soil after repair, the particle size of the repair agent is mostly divided into ≤5mm for farmland or ≤20mm for engineering landfill.

[0052] When solid waste is fed in, the external feeding device first feeds the solid waste into the feed inlet on the upper side of the working chamber 1. The solid waste will fall into the upper storage chamber. Under the cumulative gravity of the solid waste, the two upper left and right filter panels 41 will change from the closed state to the open state, allowing the solid waste to fall smoothly downwards between the two left and right crushing rollers 2 for crushing. After the solid waste has fallen, under the action of the tension spring, the two upper left and right filter panels 41 will change from the open state to the closed state, and the corresponding left and right magnetic suction sleeves 444 will also be squeezed in. After the avoidance, the magnetic connection is restored by popping out again. During this process, the two magnetic sleeves 444 on the upper left and right sides will squeeze the corresponding compression springs and move away from each other to disconnect the magnetic connection. This avoids the two magnetic sleeves 444 on the left and right sides from always sticking together tightly, which would restrict the opening of the two filter panels 41 on the left and right sides. The two filter panels 41 on the upper left and right sides will drive the corresponding limit plates 442 to rotate along the limit holes through the corresponding rotating shafts. At this time, the position angle of the multiple bushings 441 on the upper side does not change, and the corresponding limit plates 442 can follow the rotating shaft to rotate along the limit holes for compensation.

[0053] Next, the external drive controls the two crushing rollers 2 to rotate in opposite directions to crush the falling solid waste. It should be noted that the initial distance between the two crushing rollers 2 is the minimum distance. The front and rear ends of the right crushing roller 2 are initially located on the left side of the waist-shaped hole. The crushed powder corresponds to a particle size of ≤5mm for farmland use. If it is necessary to change to a particle size of ≤20mm for landfill use, the external drive controls the adjusting plate 22 to slide along the guide rod 23 until the right crushing roller 2 slides from the left side to the right side of the waist-shaped hole to a suitable position. Then, the filter cartridge 3 with a different pore size can be replaced. Adjusting the distance between the two crushing rollers 2 and replacing the filter cartridge 3 with a different pore size are existing technologies and will not be described in detail here.

[0054] After solid waste is crushed, it will contain powder that meets standards but has a large particle size. The small particle size powder can be screened out by the filter cylinder 3 and the filter holes of the two filter panels 41 on the lower left and right sides, and falls onto the mixing seat 51 on the upper side. During this process, the external drive control transmission shaft can drive the front and rear gears to rotate back and forth. Through the meshing of the gears and gear rings, the filter cylinder 3 can rotate back and forth at a small angle, thereby making the powder at the bottom of the filter cylinder 3 better screened. The large particle size powder will fall onto the inner wall of the filter cylinder 3 and be filtered out. The cylinder 3 reciprocates at a small angle, causing large-diameter powder particles to press against the side plates 42 on the same side. This causes the plates to first disconnect from the magnetic baffles 443, then flip into the storage cavity, changing from a closed to an open state. After the powder enters the storage cavity, under the action of the tension spring, it returns to its original position and magnetically connects to the corresponding magnetic baffles 443, changing from an open to a closed state. This effectively prevents large-diameter powder particles from detaching from the storage cavity again. This process is repeated until the powder enters the lower storage cavity. After storing a sufficient amount of large-diameter powder, the external drive control shaft drives the front and rear gears to rotate, causing the filter cylinder 3 to rotate 180 degrees in one direction until the stored powder in the lower storage chamber flips to the upper side. At this time, the front and rear electromagnets 446 on the upper side stop working, while the front and rear electromagnets 446 on the lower side start working. At this time, the two filter panels 41 on the upper side will change from the closed state to the open state under the action of the powder gravity, so that the large-diameter powder falls back into the left and right crushing rollers 2. By storing large-diameter powder and driving it to flip, the problem of large-diameter powder leakage and affecting crushing efficiency is avoided, thereby achieving the effect of circulating crushing of large-diameter powder in the filter cylinder 3. The front and rear electromagnets 446 on the lower side will be magnetically connected to the corresponding magnetic sleeves 444, further strengthening the magnetic attraction of the left and right magnetic sleeves 444 on the lower side, preventing them from being squeezed by the subsequently falling powder and changing from the closed state to the open state.

[0055] It should be noted that in both the upper and lower mixing sections 5, one of the paddle-type stirring shafts 52 can be driven and controlled by an external device to rotate. This paddle-type stirring shaft 52 drives the other paddle-type stirring shaft 52 to rotate in the opposite direction through an external gear transmission, and drives the screw rod 53 to rotate synchronously through a synchronous belt. The rotary joints 521 on the upper left and right paddle-type stirring shafts 52 are connected to the external active agent storage tank and plunger pump, and the rotary joints 521 on the lower left and right paddle-type stirring shafts 52 are connected to the external air compressor.

[0056] During the preparation of the remediation agent, after the small-diameter powder falls onto the upper mixing seat 51, the two rotary joints 521 on the upper left and right sides will rotate in opposite directions to evenly tumble the powder. At the same time, the upper screw rod 53 will also stir the powder at the bottom, further enhancing the stirring effect. This avoids the problem of inconsistent agent concentration due to uneven powder particle size and the difficulty in uniform mixing of conventional sprayed active agents, which hinders the full activity of the remediation agent. Furthermore, excessively high local agent concentrations can induce soil property deterioration and the formation of secondary agglomerates, affecting the reuse performance of the remediated soil. During this process, an external plunger pump will pump the active agent from the storage tank. The active agents are fed into the corresponding rotary joints 521, and then into the corresponding docking grooves. The active agents are sprayed out through the multiple micro-holes corresponding to the multiple flow channels, thereby achieving the effect of uniformly adding active agents while stirring the powder, making the powder more fully and evenly mixed until the powder and active agents are fully mixed into a repair agent. It should be noted that during mixing, the stirring direction of the two paddle-type stirring shafts 52 is from bottom to top to tumble the repair agent, and the rotation direction of the screw rod 53 will also drive the repair agent to move from back to front. Neither of these will cause the repair agent to exert pressure on the upper blocking slide 541.

[0057] When the repair agent is discharged, one of the paddle-type stirring shafts 52 is reversed via an external drive. At this time, the stirring direction of the two paddle-type stirring shafts 52 is from top to bottom, tumbling the repair agent. The rotation direction of the first screw rod 53 will also drive the repair agent to move from front to back. As the first screw rod 53 and the two paddle-type stirring shafts 52 rotate, the repair agent gradually moves upwards towards the blocking slide 541 and applies pressure until it squeezes the blocking slide 541 out of the working chamber 1. The repair agent can then intermittently fall into the cover plate 62 from the discharge port. Simultaneously, because the first screw rod 53 and the second screw rod 61 are connected by a synchronous belt, the second screw rod 61 will also rotate synchronously. It should be noted that, in order to move the remediation agent from the rear side to the front side inside the cover plate 62, the spiral blades of the second spiral rod 61 rotate in the opposite direction to the spiral blades of the first spiral rod 53 on the upper side. At this time, the second spiral rod 61 will drive the remediation agent to move slowly forward. During this period, the remediation agent will fall into the lower mixing seat 51 through multiple drop holes on the cover plate 62 and the guide plate 63 in sequence. This will enable the remediation agent to be evenly distributed into the mixing seat 51 at multiple points, avoiding the problem that it is not easy to achieve uniform mixing due to the significant density difference, viscosity and agglomeration effect between the remediation agent and the soil. In addition, to ensure that the multiple drop holes are not blocked, the hole diameter can be appropriately increased, and a high-pressure air hammer can be installed externally for intermittent unblocking.

[0058] During soil remediation, the soil to be remediated is first fed into the lower mixing seat 51 through the inlet using an external feeding device. At this time, the two rotary joints 521 on the upper left and right sides rotate in opposite directions to evenly flip the soil and remediation agent. Simultaneously, the upper spiral rod 53 also stirs the soil and remediation agent at the bottom, further enhancing the stirring effect. While ensuring uniform mixing, it efficiently achieves effective contact between the remediation agent and the pollutants. During this process, an external air compressor inputs compressed air into the corresponding rotary joint 521. The compressed air is then fed into the docking groove through the rotary joint 521 and sprayed out through multiple micro-holes corresponding to multiple flow channels. This achieves the uniform spraying of compressed air while stirring the soil and remediation agent, breaking up the aggregated soil and remediation agent from the inside out. This avoids the problem of the soil clumps having an encapsulation effect, which would prevent the remediation agent from effectively penetrating into the core area to contact the pollutants and creating a reaction blind zone.

[0059] When discharging the soil, repeat the above steps for discharging the remediation agent. Similarly, control the two paddle-type stirring shafts 52 and the screw rod 53 on the lower left and right sides to rotate in opposite directions. The rotation direction of the screw rod 53 will also drive the remediation agent to move from front to back. At this time, the mixed soil will gradually move to the upper blocking slide 541 and apply extrusion pressure as the screw rod 53 and the two paddle-type stirring shafts 52 rotate. Until the mixed soil squeezes the blocking slide 541 out to the outside of the working chamber 1, the mixed soil can be intermittently discharged from the discharge port and wait for centralized treatment.

[0060] In summary, this application has the following advantages:

[0061] Firstly, when solid waste is fed in, the external feeding device first feeds the solid waste into the upper storage chamber. The two upper left and right filter panels 41 will change from the closed state to the open state, allowing the solid waste to fall smoothly down between the two left and right crushing rollers 2 for crushing. After the solid waste has fallen, the two upper left and right filter panels 41 will change from the open state to the closed state. The corresponding left and right magnetic suction sleeves 444 will also be squeezed to avoid being squeezed, and then pop out to restore the magnetic attraction connection. During this period, the two upper left and right magnetic suction sleeves 444 will squeeze the corresponding compression springs and move away from each other to disconnect the magnetic attraction connection, avoiding the problem that the two left and right magnetic suction sleeves 444 are always sticking together tightly, which would restrict the opening of the two left and right filter panels 41.

[0062] Secondly, the external drive control shaft drives the front and rear gears to rotate reciprocally. Through the meshing of the gears and the gear ring, the filter cylinder 3 rotates reciprocally at small angles, which allows the powder at the bottom of the filter cylinder 3 to be better screened. Large-diameter powder will fall onto the inner wall of the filter cylinder 3. As the filter cylinder 3 rotates reciprocally at small angles, the large-diameter powder will squeeze the side plate 42 on the same side, causing it to first disconnect from the magnetic connection with the corresponding magnetic baffle 443, and then flip into the storage cavity from the closed state to the open state. After the powder enters the storage cavity, under the action of the tension spring, it returns to its original position and is magnetically connected to the corresponding magnetic baffle 443, changing from the open state to the closed state. This effectively prevents the large-diameter powder from falling out of the storage cavity again.

[0063] Thirdly, the external drive control shaft rotates the front and rear gears, causing the filter cylinder 3 to rotate 180 degrees in one direction until the stored powder in the lower storage chamber flips to the upper side. At this point, the two electromagnets 446 on the upper side stop working, while the two electromagnets 446 on the lower side start working, causing the large-diameter powder to fall back between the two crushing rollers 2. By storing the large-diameter powder and causing it to flip, the problem of large-diameter powder being missed and affecting the crushing efficiency is avoided. This achieves the effect of circulating and crushing the large-diameter powder in the filter cylinder 3. The two electromagnets 446 on the lower side are magnetically connected to the corresponding magnetic sleeves 444, further strengthening the magnetic attraction of the two magnetic sleeves 444 on the lower side and preventing them from being squeezed by the subsequently falling powder and changing from the closed state to the open state.

[0064] Fourthly, during the preparation of the remediation agent, the two rotary joints 521 on the upper left and right sides will rotate in opposite directions to evenly tumble the powder, while the upper spiral rod 53 will also stir the powder at the bottom, further enhancing the stirring effect of the powder. This avoids the problem that uneven powder particle size and the difficulty in evenly mixing the active agent due to conventional spraying can lead to inconsistent agent concentrations, hindering the full activity of the remediation agent. Furthermore, excessively high local agent concentrations can induce soil degradation and the formation of secondary agglomerates, affecting the reuse performance of the soil after remediation. The active agent will be input into the corresponding docking groove through the rotary joints 521 and sprayed out through multiple microholes corresponding to multiple flow channels. This achieves the effect of evenly adding the active agent while stirring the powder, making it more fully and evenly mixed with the powder until the powder and active agent are fully mixed into the remediation agent.

[0065] Fifthly, when discharging the remediation agent, one of the paddle-type stirring shafts 52 is rotated in the opposite direction by external drive control. At this time, the remediation agent will gradually move upward to the blocking slide 541 and apply extrusion pressure as the screw rod 53 and the two paddle-type stirring shafts 52 rotate. The remediation agent will then squeeze the blocking slide 541 out to the outside of the working chamber 1. The remediation agent can then fall intermittently into the cover plate 62 from the discharge port. At this time, the screw rod 61 will drive the remediation agent to move slowly forward, thereby realizing the remediation agent being evenly distributed into the mixing seat 51 in a multi-point manner. This avoids the problem of difficulty in achieving uniform mixing due to the significant density difference, viscosity and agglomeration effect between the remediation agent and the soil.

[0066] Advantage six: During soil remediation, the two rotary joints 521 on the upper left and right sides will rotate in opposite directions to evenly flip the soil and remediation agent. The upper spiral rod 53 will also stir the soil and remediation agent at the bottom, further enhancing the stirring effect. While ensuring the uniformity of mixing, it can efficiently achieve effective contact between the remediation agent and the pollutants. During this process, compressed air will be input into the docking groove through the rotary joints 521 and sprayed out through multiple micro-holes corresponding to multiple flow channels. This achieves the uniform spraying of compressed air while stirring the soil and remediation agent, breaking up the aggregated soil and remediation agent from the inside out. This avoids the problem of the soil clumps having an encapsulation effect, which makes it difficult for the remediation agent to effectively penetrate into its core area to contact the pollutants, thus creating a reaction blind zone.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soil remediation device utilizing solid waste treatment, characterized in that, include: The working chamber (1) consists of two mixing chambers, an inlet at the front end of the lower mixing chamber and a passage at both the upper and lower ends of the upper mixing chamber. Crushing rollers (2) are symmetrically arranged in the upper mixing chamber. A filter cylinder (3) is also arranged in the upper mixing chamber. The front and rear ends of the filter cylinder (3) are rotatably connected to the inner wall of the working chamber (1) through a toothed ring. A crushing part (4) is arranged on the filter cylinder (3). A mixing part (5) is arranged in both the upper and lower mixing chambers. A distribution part (6) is arranged on both the upper and lower mixing chambers. The crushing part (4) includes filter panels (41) located inside the filter cylinder (3) and symmetrically arranged on the left and right sides corresponding to the upper and lower notches. Each filter panel (41) on the left and right sides is provided with a side plate (42) at the opposite ends. Hollow shafts (43) are installed on the opposite ends of the front and rear toothed rings corresponding to multiple filter panels (41). Each corresponding filter panel (41), side plate (42) and hollow shaft (43) is provided with an opening and closing assembly (44). The mixing section (5) includes a mixing seat (51) installed on the inner wall of the working chamber (1). Paddle-type stirring shafts (52) are symmetrically arranged on the upper side of the mixing seat (51). A screw rod (53) is arranged on the lower side of the middle of the paddle-type stirring shafts (52) on both sides. A feeding group (54) is arranged on the working chamber (1). The distribution section (6) includes a second spiral rod (61) located on the upper side of the mixing chamber and the lower side of the working chamber (1).

2. The soil remediation equipment for treating solid waste according to claim 1, characterized in that: The opening and closing assembly (44) includes a rotating shaft installed at opposite ends of the left and right filter panels (41). A plurality of bushings (441) are evenly installed on the side plate (42) near the filter panel (41) and rotated on the rotating shaft. Limiting holes are respectively opened on the outer walls of the bushings (441) and the hollow shaft (43). Limiting plates (442) are movably fitted on the inner walls of the limiting holes by tension springs. The limiting plates (442) are fixedly connected to the rotating shaft.

3. The soil remediation equipment for treating solid waste according to claim 2, characterized in that: The opening and closing assembly (44) also includes magnetic baffles (443) that are symmetrically installed on the inner wall of the filter cylinder (3) corresponding to the left and right filter panels (41). The opposite ends of the left and right filter panels (41) are slidably fitted with magnetic sleeves (444) by compression springs. Vertical plates (445) are symmetrically installed on the inner wall of the filter cylinder (3) corresponding to the left and right filter panels (41). Electromagnets (446) are embedded on the vertical plates (445) corresponding to the magnetic sleeves (444).

4. The soil remediation equipment for treating solid waste according to claim 1, characterized in that: The paddle-type stirring shaft (52) is rotatably inserted through the working chamber (1) at both ends, and is rotatably fitted with a mounting seat fixedly connected to the outer wall of the working chamber (1). The spiral rod (53) is rotatably inserted through the working chamber (1) at both ends. The front end of the paddle-type stirring shaft (52) is also rotatably fitted with a rotary joint (521). A docking groove is opened on the outer wall of the paddle-type stirring shaft (52) corresponding to the rotary joint (521). Multiple flow channels are evenly distributed in a circle on the inner wall of the rear end of the docking groove. Multiple microholes are evenly distributed in a circle on the outer wall of the paddle-type stirring shaft (52). The multiple microholes are respectively connected to the corresponding flow channels.

5. The soil remediation equipment for treating solid waste according to claim 1, characterized in that: The feeding assembly (54) includes a sliding hole at the rear end of the mixing chamber. A blocking slide (541) is slidably installed on the inner wall of the sliding hole and slidably sleeved on the outer wall of the screw rod (53). Extension plates (542) are symmetrically installed on the outer wall of the blocking slide (541). The extension plates (542) on both the left and right sides are connected to the outer wall of the working chamber (1) by tension springs. The bottom of the mixing chamber and the mixing seat (51) are provided with a feeding port corresponding to the blocking slide (541).

6. The soil remediation equipment for treating solid waste according to claim 1, characterized in that: The distribution section (6) also includes a cover plate (62) installed on the inner walls of the front and rear ends of the working chamber (1). The upper end of the cover plate (62) is fixedly connected to the upper mixing chamber, and multiple sets of material dropping holes are evenly distributed in a circle on the outer wall of the cover plate (62). Guide plates (63) are symmetrically installed on the left and right sides of the outer wall of the cover plate (62), and multiple sets of material dropping holes are also evenly distributed from left to right on the upper end of the guide plates (63).

7. A soil remediation device for treating solid waste according to claim 1, characterized in that: Side baffles (21) are provided at the opposite ends of the two crushing rollers (2) on the left and right sides. The crushing roller (2) on the left side and the side baffle (21) are rotatably connected to the working chamber (1) at both ends. The working chamber (1) is provided with waist-shaped holes at both ends. The crushing roller (2) on the right side and the side baffle (21) are slidably connected to the inner wall of the waist-shaped holes at both ends. An adjusting plate (22) is fixedly sleeved on the crushing roller (2) on the right side. A guide rod (23) is installed on the outer wall of the working chamber (1) and slides through the adjusting plate (22).

8. A soil remediation device for treating solid waste according to claim 7, characterized in that: The working chamber (1) has symmetrical through holes on its outer wall. A drive shaft is rotatably mounted on the outer wall of the working chamber (1) via a mounting base. Drive gears are installed in the corresponding through holes at both ends of the drive shaft. The drive gears on the front and rear sides mesh with the corresponding toothed rings on the filter cylinder (3).

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