Heavy metal contaminated soil automatic circulation remediation device capable of avoiding accumulation

Abstract

A rack is arranged at the bottom of a screening cylinder, a feeding port is formed in one side of the screening cylinder, a circular filter plate I is movably mounted in the screening cylinder, and an outer gear ring arranged on one side of the circular filter plate I is in meshed connection with a gear arranged at the output end of a motor II; a circular filter plate II is arranged in the circular filter plate I, a plurality of guide strips are arranged on the outer side of the circular filter plate II, the guide strips and the circular filter plate I are movably mounted in an engaged manner, one end of the circular filter plate II is fixedly connected with one end of an electric telescopic rod III, and the other end of the electric telescopic rod III is fixedly mounted on the circular filter plate I; and the filter holes in the circular filter plate I and the circular filter plate II are correspondingly arranged. According to the device, primary mixing can be conducted in the mixing and adjusting cylinder while automatic adding of a treatment agent is achieved, meanwhile, a bulldozing head is arranged in the stirring box, dispersion of accumulated soil is achieved, and a cleaning plate is arranged on the outer side of a mounting shaft so that soil adhering to stirring blades II can be treated.

Description

Technical Field

[0001] This invention belongs to the field of heavy metal soil remediation technology, and specifically relates to an automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation. Background Technology

[0002] In the process of heavy metal soil remediation, the diffusion of heavy metals and the generation of secondary pollutants should be minimized. Existing heavy metal soil remediation devices have the following problems during use: 1) Existing soil rinsing methods produce wastewater containing heavy metals, generating secondary pollutants, while thermal treatment methods produce waste gas containing heavy metals that floats in the atmosphere. These methods have high requirements for subsequent treatment and are prone to secondary pollution, affecting the surrounding environment; 2) Existing chemical treatment and remediation devices cannot effectively remove soil adhering to stones and weed roots during soil screening, resulting in some heavy metal-contaminated soil being discharged with the screened material without being treated; 3) During the mixing process, moist soil easily adheres to the mixing rod, affecting the mixing effect and causing uneven mixing of contaminated soil and treatment agents.

[0003] A search revealed that prior art CN116213446A discloses a soil heavy metal pollution remediation technology, comprising the following steps: S1, collecting heavy metal contaminated soil and storing it in a soil-holding box at the top of the base, then spraying water into the soil-holding frame inside the soil-holding box through a spray box and spray pipe; S2, using a rotary motor and drive screw to push a moving plate to slide back and forth inside the mounting groove, driving a rotating rod and drive gear to move, and using a rack and pinion mechanism to force the drive gear and rotating rod to rotate, thus mixing; S3, applying a DC voltage to both sides of the contaminated soil using electrode plates inside the electrode cavity to form an electric field gradient, causing the heavy metal pollutants in the soil to undergo electromigration in the electric field; S4, sending the accumulated pollutants and water into the mixing drum through a discharge pipe; S5, in the contaminated soil... After soil remediation is completed, a hydraulic jack lowers the pad and soil storage frame, and with the cooperation of support rollers and wheels, pushes the support plate, pad, and soil storage frame to the bottom of the extrusion plate. Then, the hydraulic jack pushes the pad and soil storage frame upward to extrude the soil, expelling and collecting the residual water. The above technical solution pre-treats heavy metal soil through leaching, and after the migration of heavy metals is completed by forming an electric field gradient through electrodes, subsequent treatment is carried out. However, the above technical solution has the following problems in use: 1) If the soil is not screened, it is easy for stones to get stuck on the mixing blades during the mixing process, and it is also easy for weeds to entangle it, affecting the mixing effect; 2) Moist soil is very easy to stick to the mixing device. If there is no cleaning device, it will greatly affect the mixing effect and the treatment agent will not mix evenly with the soil. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automated circulating remediation device for heavy metal contaminated soil that can avoid accumulation. It can automatically add treatment agents while performing preliminary mixing in the mixing regulating cylinder. At the same time, a bulldozer is set in the mixing tank to disperse the accumulated soil. A cleaning plate is set on the outside of the mounting shaft to deal with the sticky soil on the mixing blade II.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automated cyclic remediation device for heavy metal contaminated soil that can prevent accumulation includes a frame, a screening cylinder, a feed inlet, circular filter plate I, circular filter plate II, motor I, motor II, a pusher frame, discharge port I, a chemical tank, a chemical delivery channel, discharge port II, a connecting pipe, a collection box, a mixing channel, a spray pipe, an electric telescopic rod II, an adjusting rack, a mixing regulating cylinder, and a mixing tank. The frame is located at the bottom of the screening cylinder, and the feed inlet is located on one side of the screening cylinder. Circular filter plate I is movably installed inside the screening cylinder, and an external... The gear ring meshes with the gear at the output end of motor II. Circular filter plate I contains circular filter plate II. Several guide strips are located on the outer side of circular filter plate II, engaging and movably installing with circular filter plate I. One end of circular filter plate II is fixedly connected to one end of electric telescopic rod III, and the other end of electric telescopic rod III is fixedly installed on circular filter plate I. The filter holes on circular filter plate I and circular filter plate II are correspondingly arranged. When electric telescopic rod III moves circular filter plate II to extend or retract, the filter holes will misalign, thereby changing the filter diameter, suitable for different applications. The filtration effect under the environment: The circular filter plate II has several fixed baffles inside and fixed frames on both sides. Fixed plates are movably installed on the fixed frames, and stirring rods are installed on the corresponding fixed plates. The gear on one side of the central shaft of the fixed plate meshes with the gear on the output end of motor I. Motor I is fixedly installed on the fixed frame. The bottom of the screening cylinder is fixedly connected to the discharge port I and the discharge port II. The other end of the discharge port I is connected to the mixing channel. The other end of the discharge port II is connected to the collection box through the connecting pipe. The two sides of the discharge port I are provided with drug delivery channels. One end of the drug delivery channel is fixedly connected to the medicine box, and the other end is fixedly connected to the side wall of the discharge port I. The mixing channel is provided below the discharge port I. The spray pipe is movably installed in the mixing channel. The spray pipe is provided with several spray heads. One end of the spray pipe is connected to the water inlet pipe through a rotary joint. The gear on the spray pipe meshes with the adjusting rack. One end of the adjusting rack is fixedly connected to one end of the electric telescopic rod II. The other end of the electric telescopic rod II is fixedly installed on the outer wall of the mixing channel. The mixing regulating cylinder is movably installed at the bottom of the mixing channel. The mixing box is provided below the mixing regulating cylinder.

[0007] The drug delivery channel is equipped with a protective cover on one side, and sliding grooves are provided on both sides of the protective cover. Adjusting rollers are movably installed in the sliding grooves, and the two sides of the adjusting rollers are movably installed on the adjusting plates. The output end of motor III is fixedly connected to one side of the central shaft of the adjusting rollers, and one end of electric telescopic rod I is fixedly connected to one side of the adjusting plate. The other end of electric telescopic rod I is fixedly installed on the protective cover. A stirring shaft is movably installed inside the drug delivery channel near the discharge port I. One end of the stirring shaft is fixedly connected to the output end of motor IV. The stirring shaft is provided with several spirally distributed material blades, and several crushing grooves of different lengths are provided on the material blades.

[0008] A pusher frame is provided inside the screening cylinder on one side of the circular filter plate II. The pusher frame is movably mounted on a telescopic disc, which is movably mounted inside the screening cylinder. One end of an electric telescopic rod IV is fixedly connected to one side of the telescopic disc, and the other end of the electric telescopic rod IV is fixedly mounted inside the screening cylinder. The pusher frame is provided with several equidistantly distributed limiting guide plates. A telescopic sleeve is movably mounted inside the limiting guide plates. One end of an electric telescopic rod V is fixedly connected to one side of the telescopic sleeve, and the other end of the electric telescopic rod V is fixedly mounted on the pusher frame. A baffle plate is fixedly mounted on the inner ring of the pusher frame.

[0009] An opening is provided on the side wall of the mixing regulating cylinder. An external gear ring on one side of the mixing regulating cylinder meshes with a gear on the output end of motor V. Motor VI is provided on one side of the mixing regulating cylinder. The output end of motor VI passes through a through hole and is fixedly connected to a connecting plate. Two sets of connecting shafts are movably installed on the connecting plate. A gear on one end of the connecting shaft meshes with an internal gear ring on the inner side wall of the mixing regulating cylinder. A spiral stirring rod is wound around the connecting shaft. A spring is wound around the spiral stirring rod. One end of the spring is fixedly installed on the spiral stirring rod, and the other end is fixedly connected to a sliding seat. Several stirring blades I are fixedly installed on the sliding seat.

[0010] The mixing tank is equipped with movable doors on both sides. One end of an electric telescopic rod VI is fixedly connected to one side of the movable door, and the other end of the electric telescopic rod VI is fixedly installed on the side wall of the mixing tank. A C-shaped guide rod is provided above the mixing tank, and a screw I is movably installed inside the C-shaped guide rod. One end of the screw I is fixedly connected to the output end of motor VII, and a movable frame is movably installed on the screw I. Limiting sleeves are provided on both sides of the mixing tank, and a bulldozer head is movably installed inside the limiting sleeves.

[0011] The movable frame is movably mounted at both ends inside C-shaped guide rods and engages with screw I. An adjusting frame is movably mounted on one side of the movable frame, and one end of an electric telescopic rod VII is movably connected to the adjusting frame. The other end of the electric telescopic rod VII is movably connected to the movable frame. A movable slot is provided on the adjusting frame, and a movable base is movably mounted within the slot. A motor X is mounted on the movable base. One side of the motor X is fixedly mounted to the movable base via a fixing plate. Screws IV are engaged on both sides of the fixing plate and are fixedly mounted on a rotating shaft. The two ends of the screws IV on the same rotating shaft have opposite thread directions. A worm gear is mounted on the rotating shaft and engages with a worm wheel at the output end of the adjusting motor. A mounting shaft is fixedly connected to the output end of motor X. Several stirring blades II are mounted on the mounting shaft, and a cleaning plate is movably fitted onto each stirring blade II. One end of the electric telescopic rod Ⅷ is fixedly connected to the inner side of the plate, and the other end of the electric telescopic rod Ⅷ is fixedly installed in the mounting shaft. The movable frame moves back and forth in the C-shaped guide rod. At the same time, the angle of the adjustable frame can be controlled by the extension and retraction of the electric telescopic rod Ⅶ. During the adjustment process, the motor Ⅹ drives the mixing blades Ⅱ on the mounting shaft to rotate, and performs secondary mixing of the treated soil. During the mixing process, the extension and retraction of the electric telescopic rod Ⅷ can be controlled according to the adhesion on the mixing blades Ⅱ, which drives the cleaning plate to move, thereby scraping off the soil adhering to the mixing blades Ⅱ. During the rotation of the mounting shaft, the worm gear can be rotated by adjusting the motor, which meshes with the worm to drive the rotating shaft to rotate. This causes the screws Ⅳ with opposite thread directions at both ends of the rotating shaft to drive the movable base to move back and forth in the movable groove to adjust the spacing, further improving the mixing effect.

[0012] One end of the bulldozer head has an umbrella-shaped structure, and the other end is movably engaged with screw II. One end of screw II is movably mounted on the side wall of the mixing tank, and the other end is movably mounted on the limiting sleeve. One end of screw II is fixedly connected to the output end of motor VIII. Motor IX is installed inside the bulldozer head. Screw III is fixedly connected to the output end of motor IX. The other end of screw III is movably mounted on the inner side wall of the bulldozer head. Guide rods are provided on both sides of screw III. Lifting plates are movably mounted on the guide rods and screw III. Connecting rods are movably connected to both sides of the lifting plates. The other ends of the connecting rods are movably connected to bulldozer plate I and bulldozer plate II, respectively.

[0013] The advantages of this invention compared to existing technologies are as follows:

[0014] 1) During the rotation of the circular filter plate II, the internal material will be lifted to a certain height and fall down after being blocked by the fixed baffle. At this time, the output end of motor I drives several fixed discs to rotate through gear transmission, thereby driving several stirring rods to rotate at high speed, which will stir and disperse the material falling on the fixed baffle, avoid soil clumping and affect subsequent mixing treatment, and at the same time can quickly distinguish soil from stones, branches and other debris, greatly improving screening efficiency.

[0015] 2) By controlling the extension and retraction of the electric telescopic rod I, the adjusting plate drives the adjusting roller to move along the sliding grooves on both sides of the protective cover, thereby controlling the size of the delivery channel and the flow rate of the treatment agent. When the treatment agent reaches the bottom of the delivery channel, the motor IV drives the dispersing blades on the stirring shaft to rotate rapidly, quickly and evenly throwing out the treatment agent, which collides with the falling soil to mix it evenly. The irregular crushing grooves on the dispersing blades can crush the treatment agent, avoiding clumping that affects the normal use of the treatment agent and improving the mixing effect of the treatment agent and the soil.

[0016] 3) The electric telescopic rod IV drives the telescopic disc to reciprocate inside the screening cylinder. When the screened material still contains a large amount of soil, the electric telescopic rod IV drives the telescopic disc to approach one end of the circular filter plate II and makes the pusher frame mesh with one end of the circular filter plate II, so that the pusher frame rotates. During the rotation, the telescopic sleeve at the bottom will be pushed out along the pusher frame under the drive of the electric telescopic rod V, pushing the screened material to one side of the filter hole for secondary stirring and screening. This improves screening efficiency while avoiding soil contamination of the surrounding environment by stones or weeds, ensuring the safety of the treatment and avoiding secondary pollution.

[0017] 4) Motor V drives the mixing regulating cylinder to rotate at the bottom of the mixing channel. During the rotation, when the opening on the side wall of the mixing regulating cylinder corresponds to the opening at the bottom of the mixing channel, the soil inside falls into the mixing box. When the two openings are misaligned, the soil remains inside the mixing regulating cylinder. When the opening on the side wall of the mixing regulating cylinder corresponds to the discharge port I, the pre-treated soil will fall into the mixing regulating cylinder through the opening. Motor VI on one side of the mixing regulating cylinder drives the connecting plate to rotate quickly, thereby driving the spiral stirring rod on the connecting shaft to rotate quickly. During the rotation of the connecting shaft following the connecting plate, the gear fixed at one end of the connecting shaft meshes with the internal gear ring, thereby enabling the connecting shaft to drive the spiral stirring rod to rotate, which can improve the mixing effect. At the same time, the sliding seat installed on the spiral stirring rod will move randomly under the action of the spring, thereby causing the stirring blade I to stir and break the soil again, which can greatly improve the mixing efficiency, enhance the mixing effect, and repeatedly repair the soil.

[0018] 5) Motor X drives the mixing blades II on the mounting shaft to rotate, and performs secondary mixing on the treated soil. During the mixing process, depending on the adhesion on the mixing blades II, the extension and retraction of the electric telescopic rod VIII can be controlled to move the cleaning plate, thereby scraping off the soil adhering to the mixing blades II, so that the mixing blades II always have a strong mixing capacity. With the adjustment of the angle and the movement of the position, the soil in the mixing box is fully mixed, so that it is evenly mixed with the treatment agent, ensuring the remediation effect.

[0019] 6) Motor VIII drives screw II to rotate, thereby pushing the bulldozer head out along the limiting sleeve and pushing aside the soil accumulated in the mixing tank. Then, motor IX drives screw III to rotate, which moves the lifting plate along the guide rod. This pushes the bulldozer plate I and bulldozer plate II inside the bulldozer head out on both sides through the connecting rod, leveling the accumulated soil and preventing the accumulated soil from jamming the mixing device, thus improving the mixing efficiency. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the structure of an automated recycling remediation device for heavy metal contaminated soil that can avoid the accumulation of heavy metals according to the present invention.

[0021] Appendix Figure 2 This is a side view of the automated cyclic remediation device for heavy metal contaminated soil that can avoid the accumulation of soil, according to the present invention.

[0022] Appendix Figure 3 This is a schematic diagram of the internal structure of the screening cylinder;

[0023] Appendix Figure 4 This is a schematic diagram of the circular filter plate II structure;

[0024] Appendix Figure 5 This is a schematic diagram of the internal structure of the circular filter plate II;

[0025] Appendix Figure 6 This is a schematic diagram of the pusher frame structure;

[0026] Appendix Figure 7 This is a schematic diagram illustrating the installation effect of the telescopic sleeve;

[0027] Appendix Figure 8 This is a schematic diagram of the baffle plate structure;

[0028] Appendix Figure 9 This is a schematic diagram of the medicine box structure;

[0029] Appendix Figure 10 This is a schematic diagram of the internal structure of the drug delivery channel;

[0030] Appendix Figure 11 This is a schematic diagram of the internal structure of the mixing channel;

[0031] Appendix Figure 12 This is a schematic diagram showing the installation effect of the mixing regulating cylinder;

[0032] Appendix Figure 13 This is a schematic diagram of the internal structure of the mixing regulating cylinder;

[0033] Appendix Figure 14 This is a schematic diagram of the mixing tank structure;

[0034] Appendix Figure 15 This is a schematic diagram of the movable frame structure;

[0035] Appendix Figure 16 This is a schematic diagram of the adjustment frame structure;

[0036] Appendix Figure 17 This is a schematic diagram of the internal structure of the mounting shaft;

[0037] Appendix Figure 18 This is a schematic diagram of a bulldozer head structure;

[0038] Appendix Figure 19 This is a schematic diagram of the internal structure of a bulldozer head;

[0039] Appendix Figure 20 This is a schematic diagram of the lifting platform structure;

[0040] In the diagram: 10. Frame; 11. Screening cylinder; 12. Feed inlet; 13. Circular filter plate I; 14. Circular filter plate II; 15. Motor I; 16. Motor II; 17. Pusher frame; 18. Discharge port I; 19. Medicine box; 20. Medicine conveying channel; 21. Protective cover; 22. Electric telescopic rod I; 23. Adjusting plate; 24. Motor III; 25. Adjusting roller; 26. Stirring shaft; 27. Discharge port II; 28. Connecting pipe; 29. ​​Collection box; 30. Mixing channel; 31. Spray pipe; 32. 1. Electric telescopic rod II; 33. Adjusting rack; 34. Mixing regulating cylinder; 35. Mixing tank; 36. Movable frame; 37. Bulldozer head; 38. Movable base; 141. Guide bar; 142. Electric telescopic rod III; 143. Fixed baffle; 151. Fixed frame; 152. Fixed disc; 153. Mixing rod; 171. Telescopic disc; 172. Electric telescopic rod IV; 173. Limiting guide plate; 174. Material baffle; 175. Telescopic sleeve; 176. Electric telescopic rod V; 261. Motor IV; 262. Bulk material blades; 263. Crushing trough; 341. Motor V; 342. Motor VI; 343. Internal gear ring; 344. Connecting plate; 345. Connecting shaft; 346. Spiral stirring rod; 347. Spring; 348. Sliding seat; 349. Stirring blade I; 351. Movable door; 352. Electric telescopic rod VI; 353. C-shaped guide rod; 354. Motor VII; 355. Screw I; 356. Limiting sleeve; 361. Electric telescopic rod VII; 362. Adjusting frame; 363. 371. Movable groove; 372. Motor VIII; 373. Screw II; 374. Motor IX; 375. Screw III; 376. Lifting plate; 377. Guide rod; 378. Connecting rod; 379. Bulldozer blade I; 380. Bulldozer blade II; 381. Motor X; 382. Fixing plate; 383. Mounting shaft; 384. Mixing blade II; 385. Cleaning plate; 386. Electric telescopic rod VIII; 387. Adjusting motor; 388. Worm gear; 389. Rotating shaft; 3891. Worm; 3892. Screw IV. Detailed Implementation

[0041] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-20 The technical solution of the present invention will be further described in detail below.

[0042] An automated recycling remediation device for heavy metal contaminated soil that can prevent accumulation includes a frame 10, a screening cylinder 11, a feed inlet 12, circular filter plate I 13, circular filter plate II 14, motor I 15, motor II 16, a pusher frame 17, a discharge outlet I 18, a medicine tank 19, a medicine delivery channel 20, a discharge outlet II 27, a connecting pipe 28, a collection box 29, a mixing channel 30, a spray pipe 31, an electric telescopic rod II 32, an adjusting rack 33, a mixing regulating cylinder 34, and a mixing tank 35. The frame 10 is located at the bottom of the screening cylinder 11. A feed inlet 12 is provided on one side of the screening cylinder 11. A circular filter plate I 13 is movably installed inside the screening cylinder 11. An external gear ring on one side of the circular filter plate I 13 meshes with a gear on the output end of the motor II 16. A circular filter plate II 14 is provided inside the circular filter plate I 13. Several guide strips 141 are provided on the outer side of the circular filter plate II 14. The guide strips 141 are movably installed and mesh with the circular filter plate I 13. One end of the circular filter plate II 14 is fixedly connected to one end of the electric telescopic rod III 142. The other end of the electric telescopic rod III 142 is fixedly installed on the circular filter plate I 13. On filter plate I 13, the filter holes on circular filter plate I 13 and circular filter plate II 14 are correspondingly arranged. When the electric telescopic rod III 142 drives the circular filter plate II 14 to extend and retract, the filter holes will be misaligned, thereby changing the filter diameter and adapting to different filtration effects in different environments. The circular filter plate II 14 has several fixed baffles 143 inside, and fixed frames 151 on both sides. Fixed plates 152 are movably mounted on the fixed frames 151, and stirring rods 153 are correspondingly mounted on the fixed plates 152. Gears on one side of the central shaft of the fixed plates 152... The output end of motor I15 is connected by a gear meshing. Motor I15 is fixedly mounted on the fixed frame 151. During the rotation of the circular filter plate II14, the internal material will be lifted to a certain height and fall down under the obstruction of the fixed baffle 143. At this time, the output end of motor I15 drives several fixed discs 152 to rotate through gear transmission, thereby driving several stirring rods 153 to rotate at high speed. This stirs and disperses the material falling on the fixed baffle 143, preventing soil from clumping and affecting the treatment. At the same time, it can quickly distinguish soil from stones, branches and other debris.The bottom of the screening cylinder 11 is fixedly connected to discharge port I 18 and discharge port II 27. The other end of discharge port I 18 is connected to a mixing channel 30. The other end of discharge port II 27 is connected to a collection box 29 via a connecting pipe 28. Drug delivery channels 20 are provided on both sides of the outside of discharge port I 18. One end of each drug delivery channel 20 is fixedly connected to a medicine box 19, and the other end is fixedly connected to the side wall of discharge port I 18. Below discharge port I 18, a mixing channel 30 is provided. A spray pipe 31 is movably installed inside the mixing channel 30. Several spray heads are provided on the spray pipe 31. One end of the spray pipe 31 is connected to a water inlet pipe via a rotary joint. A gear on the spray pipe 31 meshes with an adjusting rack 33. One end of the adjusting rack 33 is fixedly connected to one end of an electric telescopic rod II 32. The other end of the electric telescopic rod II 32 is fixedly installed on the outer wall of the mixing channel 30. A mixing regulating cylinder 34 is movably installed at the bottom of the mixing channel 30. A stirring box 35 is located below the mixing regulating cylinder 34.

[0043] The drug delivery channel 20 is mounted on a protective cover 21 on one side. The protective cover 21 has grooves on both sides, and an adjusting roller 25 is movably installed within each groove. The adjusting roller 25 is movably mounted on an adjusting plate 23 on both sides. A motor III 24 output is fixedly connected to one side of the central shaft of the adjusting roller 25. An electric telescopic rod I 22 is fixedly connected to one side of the adjusting plate 23, and the other end of the electric telescopic rod I 22 is fixedly installed on the protective cover 21. A stirring shaft 26 is movably installed inside the drug delivery channel 20 near the discharge port I 18. One end of the stirring shaft 26 is fixedly connected to the output of a motor IV 261. The stirring shaft 26 has several spirally distributed material-distributing blades 262. The blade 262 has several crushing grooves 263 of varying lengths. By controlling the extension and retraction of the electric telescopic rod I 22, the adjusting plate 23 drives the adjusting roller 25 to move along the sliding grooves on both sides of the protective cover 21, thereby controlling the size of the drug delivery channel 20 and the flow rate of the treatment agent. When the treatment agent reaches the bottom of the drug delivery channel 20, the motor IV 261 drives the dispersing blades 262 on the stirring shaft 26 to rotate rapidly, quickly and evenly scattering the treatment agent and colliding with the falling soil to mix it evenly. The irregular crushing grooves 263 on the dispersing blades 262 can crush the treatment agent and prevent clumping, which would affect the use of the treatment agent.

[0044] A pusher frame 17 is provided inside the screening cylinder 11 on one side of the circular filter plate II 14. The pusher frame 17 is movably mounted on the telescopic disc 171, which is movably mounted inside the screening cylinder 11. One end of an electric telescopic rod IV 172 is fixedly connected to one side of the telescopic disc 171, and the other end of the electric telescopic rod IV 172 is fixedly mounted inside the screening cylinder 11. The pusher frame 17 is provided with several equidistantly distributed limiting guide plates 173. A telescopic sleeve 175 is movably mounted inside the limiting guide plates 173. One end of an electric telescopic rod V 176 is fixedly connected to one side of the telescopic sleeve 175, and the other end of the electric telescopic rod V 176 is fixedly mounted on the pusher frame 17. A baffle plate 174 is fixedly mounted on the inner ring of the pusher frame 17. The telescopic disc is driven by the electric telescopic rod IV 172. 171 reciprocates inside the screening cylinder 11. When the screened material still contains a large amount of mud, the electric telescopic rod IV 172 drives the telescopic disc 171 to approach one end of the circular filter plate II 14 and makes the pusher frame 17 engage with one end of the circular filter plate II 14, causing the pusher frame 17 to rotate. During the rotation, the telescopic sleeve 175 at the bottom will be pushed out along the pusher frame 17 under the drive of the electric telescopic rod V 176, pushing the screened material to one side of the filter hole for secondary processing. When there is no need to perform secondary processing on the screened material, the electric telescopic rod IV 172 drives the telescopic disc 171 to move, causing the pusher frame 17 to disengage from the circular filter plate II 14, and the screened material can enter the collection box 29 through the discharge port II 27 along the connecting pipe 28.

[0045] An opening is provided on the side wall of the mixing regulating cylinder 34. An external gear ring on one side of the mixing regulating cylinder 34 meshes with a gear on the output end of motor V 341. A motor VI 342 is provided on one side of the mixing regulating cylinder 34. The output end of motor VI 342 passes through a through hole and is fixedly connected to a connecting plate 344. Two sets of connecting shafts 345 are movably mounted on the connecting plate 344. A gear on one end of the connecting shaft 345 meshes with an internal gear ring 343 on the inner side wall of the mixing regulating cylinder 34. A spiral stirring rod 346 is wound around the connecting shaft 345. A spring 347 is wound around the spiral stirring rod 346. One end of the spring 347 is fixedly mounted on the spiral stirring rod 346, and the other end is fixedly connected to a sliding seat 348. Several stirring blades I 349 are fixedly mounted on the sliding seat 348. Motor V 341 drives the mixing regulating cylinder 34 to rotate at the bottom of the mixing channel 30. During the rotation, the opening on the side wall of the mixing regulating cylinder 34 and the mixing channel... When the bottom opening of the mixing tank 30 corresponds to the soil falling into the mixing tank 35, and the openings of the two are misaligned, the soil remains in the mixing regulating cylinder 34. When the opening on the side wall of the mixing regulating cylinder 34 corresponds to the discharge port I18, the pre-treated soil will fall into the mixing regulating cylinder 34 through the opening. The motor VI 342 on one side of the mixing regulating cylinder 34 drives the connecting plate 344 to rotate rapidly, thereby driving the spiral stirring rod 346 on the connecting shaft 345 to rotate rapidly. During the process of the connecting shaft 345 rotating with the connecting plate 344, the gear fixed at one end of the connecting shaft 345 meshes with the internal gear ring 343, thereby enabling the connecting shaft 345 to drive the spiral stirring rod 346 to rotate, which can improve the mixing effect. At the same time, the sliding seat 348 movably installed on the spiral stirring rod 346 will move randomly under the action of the spring 347, thereby causing the stirring blade I349 to further stir and break up the soil, improving the mixing effect.

[0046] The mixing tank 35 is provided with movable doors 351 on both sides. One end of an electric telescopic rod VI 352 is fixedly connected to one side of the movable door 351, and the other end of the electric telescopic rod VI 352 is fixedly installed on the side wall of the mixing tank 35. A C-shaped guide rod 353 is provided above the mixing tank 35. A screw I 355 is movably installed inside the C-shaped guide rod 353. One end of the screw I 355 is fixedly connected to the output end of the motor VII 354. A movable frame 36 is movably installed on the screw I 355. Limiting sleeves 356 are provided on both sides of the mixing tank 35. A bulldozer head 37 is movably installed inside the limiting sleeves 356.

[0047] The movable frame 36 is movably mounted at both ends within the C-shaped guide rod 353 and engages with the screw I 355. An adjusting frame 362 is movably mounted on one side of the movable frame 36. One end of an electric telescopic rod VII 361 is movably connected to one side of the adjusting frame 362, and the other end of the electric telescopic rod VII 361 is movably connected to the movable frame 36. A movable groove 363 is provided on the adjusting frame 362, and a movable base 38 is movably mounted within the movable groove 363. A motor X 381 is mounted on the movable base 38, and a fixing plate 38 is connected to one side of the motor X 381. 2. Fixedly installed with the movable base 38, the fixed plate 382 has screws IV 3892 meshing on both sides, the screws IV 3892 are fixedly installed on the rotating shaft 389, the screws IV 3892 at both ends of the same rotating shaft 389 have opposite thread directions, the rotating shaft 389 is provided with a worm gear 3891, the worm gear 3891 is meshed with the worm wheel 388 provided at the output end of the adjusting motor 387, the output end of the motor X 381 is fixedly connected to the mounting shaft 383, the mounting shaft 383 is provided with several stirring blades II 384, the stirring blades II 384 4. A cleaning plate 385 is movably mounted on the upper sleeve. One end of an electric telescopic rod VIII 386 is fixedly connected to the inner side of the cleaning plate 385, and the other end of the electric telescopic rod VIII 386 is fixedly installed inside the mounting shaft 383. The movable frame 36 reciprocates within the C-shaped guide rod 353. Simultaneously, the angle of the adjusting frame 362 can be controlled by the extension and retraction of the electric telescopic rod VII 361. During the adjustment process, the motor X 381 drives the mixing blades II 384 on the mounting shaft 383 to rotate, performing secondary mixing of the treated soil. During the mixing process, according to the mixing... Regarding the adhesion on blade II 384, the extension and retraction of the electric telescopic rod VIII 386 can be controlled to move the cleaning plate 385, thereby scraping off the mud adhering to the mixing blade II 384. During the rotation of the mounting shaft 383, the worm gear 388 can be rotated by adjusting the motor 387, which meshes with the worm 3891 to drive the rotating shaft 389 to rotate. This causes the screws IV 3892 with opposite thread directions at both ends of the rotating shaft 389 to drive the movable base 38 to reciprocate within the movable groove 363 to adjust the spacing, further improving the mixing effect.

[0048] The bulldozer head 37 has an umbrella-shaped structure at one end and is movably engaged with a screw II 372 at the other end. One end of the screw II 372 is movably mounted on the side wall of the mixing tank 35, and the other end is movably mounted on a limiting sleeve 356. One end of the screw II 372 is fixedly connected to the output end of motor VIII 371. A motor IX 373 is installed inside the bulldozer head 37. A screw III 374 is fixedly connected to the output end of motor IX 373. The other end of the screw III 374 is movably mounted on the inner side wall of the bulldozer head 37. Guide rods 376 are provided on both sides of the screw III 374. A lifting plate 375 is movably mounted on the guide rods 376 and screw III 374. A connecting rod 377 is movably connected to the other end of the connecting rod 377, and bulldozer plate I 378 and bulldozer plate II 379 are movably connected to the other end of the connecting rod 377. The screw II 372 is rotated by motor VIII 371, which pushes the bulldozer head 37 out along the limiting sleeve 356, pushing aside the soil accumulated in the mixing tank 35. Then, the screw III 374 is rotated by motor IX 373, which moves the lifting plate 375 along the guide rod 376. Thus, the bulldozer plate I 378 and bulldozer plate II 379 in the bulldozer head 37 are pushed out on both sides through the connecting rod 377 to level the accumulated soil. After leveling, the bulldozer plates are reset and the bulldozer head 37 is retracted into the limiting sleeve 356.

[0049] An automated recycling remediation device for heavy metal contaminated soil that avoids accumulation operates as follows: Soil to be remediated is poured into a screening cylinder 11 through an inlet 12 using a conveyor belt or construction machinery. Then, a motor 16 drives circular filter plates 13 and 14 to rotate synchronously. Depending on the soil conditions, an electric telescopic rod 142 is adjusted to extend or retract the circular filter plate 14, causing the filter holes on plates 13 and 14 to misalign, thus changing the filter diameter and adapting to different filtration environments. During the rotation of the circular filter plate 14, the internal material is lifted to a certain height by a fixed baffle 143 before falling. At this time, the output of motor 15 drives several fixed discs 152 to rotate via gear transmission, which in turn drives several stirring rods 153 to rotate at high speed, stirring and breaking up the material falling from the fixed baffle 143, preventing soil clumping and ensuring rapid separation of soil from stones, branches, and other debris. The screened soil is then... The remaining stones, branches, weeds, and other debris will fall at discharge port I 18 and enter the collection box 29 through the connecting pipe 28 at discharge port II 27. If a lot of soil still adheres to the stones and weeds after one screening, the telescopic disc 171 can be driven to reciprocate inside the screening cylinder 11 by the electric telescopic rod IV 172. When the screened material still contains a lot of soil, the electric telescopic rod IV 172 drives the telescopic disc 171 to move closer to one end of the circular filter plate II 14 and makes the pusher frame 17 and the circular filter plate II 14... One end engages, causing the pusher frame 17 to rotate. During the rotation, the telescopic sleeve 175 at the bottom will be pushed out along the pusher frame 17 by the electric telescopic rod V176, pushing the screened material to one side of the filter hole for secondary processing. When the screened material does not need to be processed, the telescopic disc 171 is moved by the electric telescopic rod IV172, causing the pusher frame 17 to disengage from the circular filter plate II14, and the screened material can enter the collection box 29 through the discharge port II27 along the connecting pipe 28.

[0050] During the dosing process, the size of the delivery channel 20 and the flow rate of the treatment agent are controlled by adjusting the extension and retraction of the electric telescopic rod I22 and adjusting the adjusting roller 25 along the sliding grooves on both sides of the protective cover 21 via the adjusting plate 23. When the treatment agent reaches the bottom of the delivery channel 20, the motor IV261 drives the dispersing blades 262 on the stirring shaft 26 to rotate rapidly, quickly and evenly scattering the treatment agent and colliding with the soil falling from the discharge port I18 to mix it evenly. The soil is mixed and repaired during the rotation process. The irregular crushing grooves 263 on the dispersing blades 262 can crush the treatment agent to avoid clumping and affect the use of the treatment agent.

[0051] After the soil is mixed with the added chemicals, it enters the mixing channel 30 and is humidified by the spray pipe 31. Then it enters the mixing regulating cylinder 34 for stirring and mixing. After stirring and mixing, the soil falls into the mixing box 35 for final mixing and stirring. The soil is thoroughly mixed and evenly repaired. After completion, the soil is transferred at the movable door 351.

[0052] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An automated recycling remediation device for heavy metal contaminated soil that avoids accumulation, comprising a frame, a screening cylinder, a feed inlet, circular filter plate I, circular filter plate II, motor I, motor II, a pusher frame, discharge port I, a chemical tank, a chemical delivery channel, discharge port II, a connecting pipe, a collection box, a mixing channel, a spray pipe, an electric telescopic rod II, an adjusting rack, a mixing regulating cylinder, and a mixing tank, characterized in that... The screening cylinder has a frame at its bottom and a feed inlet on one side. A circular filter plate I is movably installed inside the screening cylinder. An external gear ring on one side of the circular filter plate I meshes with a gear at the output end of motor II. A circular filter plate II is installed inside the circular filter plate I. Several guide strips are provided on the outer side of the circular filter plate II, meshing with and movably installing with the circular filter plate I. One end of the circular filter plate II is fixedly connected to one end of an electric telescopic rod III, and the other end of the electric telescopic rod III is fixedly installed on the circular filter plate I. The filter holes on the circular filter plate I and circular filter plate II are correspondingly arranged. Several fixed baffles are provided inside the circular filter plate II, and fixed frames are provided on both sides. Fixed discs are movably installed on the fixed frames, and stirring rods are provided on the corresponding fixed discs. A gear on one side of the central shaft of the fixed disc meshes with a gear at the output end of motor I. The connection is as follows: Motor I is fixedly mounted on a fixed frame; the bottom of the screening cylinder is fixedly connected to outlet I and outlet II; the other end of outlet I is connected to a mixing channel; the other end of outlet II is connected to a collection box through a connecting pipe; medicine delivery channels are provided on both sides of the outside of outlet I; one end of the medicine delivery channel is fixedly connected to a medicine box; the other end is fixedly connected to the side wall of outlet I; a mixing channel is provided below outlet I; a spray pipe is movably installed in the mixing channel; the spray pipe is provided with several spray heads; one end of the spray pipe is connected to a water inlet pipe through a rotary joint; the gear on the spray pipe is meshed with an adjusting rack; one end of the adjusting rack is fixedly connected to one end of an electric telescopic rod II; the other end of the electric telescopic rod II is fixedly installed on the outer wall of the mixing channel; a mixing regulating cylinder is movably installed at the bottom of the mixing channel; and a stirring box is provided below the mixing regulating cylinder.

2. The automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation according to claim 1, characterized in that... The drug delivery channel is equipped with a protective cover on one side, and sliding grooves are provided on both sides of the protective cover. Adjusting rollers are movably installed in the sliding grooves, and the two sides of the adjusting rollers are movably installed on the adjusting plates. The output end of motor III is fixedly connected to one side of the central shaft of the adjusting rollers, and one end of electric telescopic rod I is fixedly connected to one side of the adjusting plate. The other end of electric telescopic rod I is fixedly installed on the protective cover. A stirring shaft is movably installed inside the drug delivery channel near the discharge port I. One end of the stirring shaft is fixedly connected to the output end of motor IV. The stirring shaft is provided with several spirally distributed material blades, and several crushing grooves of different lengths are provided on the material blades.

3. The automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation according to claim 1, characterized in that... A pusher frame is provided inside the screening cylinder on one side of the circular filter plate II. The pusher frame is movably mounted on a telescopic disc, which is movably mounted inside the screening cylinder. One end of an electric telescopic rod IV is fixedly connected to one side of the telescopic disc, and the other end of the electric telescopic rod IV is fixedly mounted inside the screening cylinder. The pusher frame is provided with several equidistantly distributed limiting guide plates. A telescopic sleeve is movably mounted inside the limiting guide plates. One end of an electric telescopic rod V is fixedly connected to one side of the telescopic sleeve, and the other end of the electric telescopic rod V is fixedly mounted on the pusher frame. A baffle plate is fixedly mounted on the inner ring of the pusher frame.

4. The automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation according to claim 1, characterized in that... An opening is provided on the side wall of the mixing regulating cylinder. An external gear ring on one side of the mixing regulating cylinder meshes with a gear on the output end of motor V. Motor VI is provided on one side of the mixing regulating cylinder. The output end of motor VI passes through a through hole and is fixedly connected to a connecting plate. Two sets of connecting shafts are movably installed on the connecting plate. A gear on one end of the connecting shaft meshes with an internal gear ring on the inner side wall of the mixing regulating cylinder. A spiral stirring rod is wound around the connecting shaft. A spring is wound around the spiral stirring rod. One end of the spring is fixedly installed on the spiral stirring rod, and the other end is fixedly connected to a sliding seat. Several stirring blades I are fixedly installed on the sliding seat.

5. The automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation according to claim 1, characterized in that... The mixing tank is equipped with movable doors on both sides. One end of an electric telescopic rod VI is fixedly connected to one side of the movable door, and the other end of the electric telescopic rod VI is fixedly installed on the side wall of the mixing tank. A C-shaped guide rod is provided above the mixing tank, and a screw I is movably installed inside the C-shaped guide rod. One end of the screw I is fixedly connected to the output end of motor VII, and a movable frame is movably installed on the screw I. Limiting sleeves are provided on both sides of the mixing tank, and a bulldozer head is movably installed inside the limiting sleeves.

6. The automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation according to claim 5, characterized in that... The movable frame is movably installed at both ends inside the C-shaped guide rod and engaged with screw I. An adjustment frame is movably installed on one side of the movable frame, and one end of the electric telescopic rod VII is movably connected to one side of the adjustment frame. The other end of the electric telescopic rod VII is movably connected to the movable frame. The adjustment frame has a movable groove, and a movable base is movably installed in the movable groove. A motor X is installed on the movable base. One side of the motor X is fixedly installed to the movable base through a fixing plate. Screws IV are engaged on both sides of the fixing plate and are fixedly installed on a rotating shaft. The two ends of the screws IV on the same rotating shaft have opposite thread directions. A worm is installed on the rotating shaft and is engaged with a worm wheel at the output end of the adjustment motor. The output end of the motor X is fixedly connected to a mounting shaft. Several stirring blades II are installed on the mounting shaft. A cleaning plate is movably sleeved on the stirring blades II. One end of the electric telescopic rod VIII is fixedly connected to the inner side of the cleaning plate, and the other end of the electric telescopic rod VIII is fixedly installed inside the mounting shaft.

7. An automated cyclic remediation device for heavy metal contaminated soil that can avoid accumulation, as described in claim 5, is characterized in that... One end of the bulldozer head has an umbrella-shaped structure, and the other end is movably engaged with screw II. One end of screw II is movably mounted on the side wall of the mixing tank, and the other end is movably mounted on the limiting sleeve. One end of screw II is fixedly connected to the output end of motor VIII. Motor IX is installed inside the bulldozer head. Screw III is fixedly connected to the output end of motor IX. The other end of screw III is movably mounted on the inner side wall of the bulldozer head. Guide rods are provided on both sides of screw III. Lifting plates are movably mounted on the guide rods and screw III. Connecting rods are movably connected to both sides of the lifting plates. The other ends of the connecting rods are movably connected to bulldozer plate I and bulldozer plate II, respectively.

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