CN112756391A

CN112756391A - Heavy metal contaminated soil treatment system and process

Info

Publication number: CN112756391A
Application number: CN202011427330.0A
Authority: CN
Inventors: 陶景聪; 方涛; 郑福山; 孙锋申; 吕红玲; 孙海身
Original assignee: Laiwu Vocational and Technical College
Current assignee: Laiwu Vocational and Technical College
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-05-07

Abstract

The invention discloses a heavy metal contaminated soil treatment system and a process, which belong to the technical field of soil remediation equipment and comprise a treatment box, wherein a soil inlet pipe is fixedly connected to one side wall of the treatment box through two fixing frames, a soil conveying auger a is rotatably connected to the soil inlet pipe, the bottom end of the soil conveying auger a is fixedly connected to one end of a soil conveying auger b through a universal coupling, the other end of the soil conveying auger b extends to the outside of the soil inlet pipe and is fixedly connected with a drill bit, a blanking pipe is fixedly connected to the outer side wall of the soil inlet pipe close to the top end, a feed inlet is formed in the position, corresponding to the blanking pipe, of the top of the treatment box, and a motor is installed on the outer side wall of the treatment box; the soil-filling machine can simultaneously carry out the work of advancing soil, crushing, screening separation, impurity removal and the like in a stepping mode, is compact in structure, easy to use and short in repair time, can achieve the repair effect in a short period, perfects the variety of soil repair, and can continuously repair the soil so as to be suitable for large-area soil repair.

Description

Heavy metal contaminated soil treatment system and process

Technical Field

The invention belongs to the technical field of soil remediation equipment, and particularly relates to a heavy metal contaminated soil treatment system and process.

Background

The soil remediation is a technical measure for restoring the normal function of polluted soil, the existing soil remediation technology reaches more than one hundred in the soil remediation industry, the common technology is more than ten, the technology can be roughly divided into three methods of physics, chemistry and biology, and a plurality of countries in the world, particularly developed countries, make and develop polluted soil treatment and remediation plans, so that a new soil remediation industry is formed.

At present, because of using mineral fertilizer and pesticide containing heavy metal in a large amount, lead to containing a large amount of heavy metal substance in the soil to remain, cause the soil pollution problem, current soil treatment mode is generally to be used for heavy metal restoration chemical agent directly to spray in polluting the soil through the mode of spraying, and the medicament is difficult to permeate into soil inside fast, thus lead to that the restoration time is long, can't reach the restoration effect in short term, refer to a heavy metal contaminated soil treatment system and process that patent number CN201910383816.X discloses at the same time, this patent adopts physical adsorption, electrolytic technology and chemical technology three step layer by layer heavy metal contaminated soil to handle, and then effectively improve the removal effect of heavy metal, but the mobility is limited, it is difficult to carry out the continuous repair work to large tracts of land pollution, there is the use drawback.

Disclosure of Invention

The invention aims to provide a heavy metal contaminated soil treatment system and a heavy metal contaminated soil treatment process, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heavy metal contaminated soil processing system, includes and handles the case, it has into native pipe through two mount rigid couplings on the lateral wall of processing case, and advances the intraductal rotation of soil and be connected with and send native auger a, send native auger a's bottom to pass through universal coupling and send native auger b's one end rigid coupling, send native auger b's the other end to extend to the outside and the rigid coupling of advancing native pipe and have the drill bit, it has the blanking pipe to advance the rigid coupling on the lateral wall that the native pipe is leaned on the top, handle the position department that the roof portion corresponds the blanking pipe and seted up the feed inlet, install the motor on the lateral wall of processing case, and the rigid coupling has gear a on the output shaft of motor, gear a meshes with gear b, gear b meshes with gear c mutually, gear b and gear c rigid coupling respectively extend one end of processing case at two crushing rollers, and two crushing rollers all rotate to be connected in processing case, the device comprises a gear c, a driven wheel a, a driven wheel b and a driven wheel c, wherein a driving wheel is fixedly connected to one side face of the gear c, the driving wheel is in transmission connection with the driven wheel a, the driven wheel b and the driven wheel c through three belts respectively, a fixing plate is arranged below the two crushing rollers, the fixing plate is fixedly connected in a treatment box, the cross section of the fixing plate is in a square root shape, a sieve plate is obliquely arranged on the inner side of the fixing plate, a through hole is formed in the position, corresponding to the sieve plate, of the bottom of the fixing plate, a vibration assembly is fixedly arranged at the bottom of the fixing plate and fixedly connected with the driven wheel c, a material guide plate is arranged below the fixing plate, the material guide plate is obliquely and fixedly connected in the treatment box, a soil falling pipe is fixedly connected to the bottom end of the material.

The scheme is as follows:

the motor is a common component in the prior art, and the adopted model and the like can be customized according to the actual use requirement.

The organic restoration liquid is organic acid, the organic acid can be combined with ions in heavy metals to carry out corresponding restoration, the restoration liquid of the organic acid can adsorb harmful substances in the organic acid, and can also carry out acidity adjustment with different concentrations according to different soil types to carry out better targeted absorption.

In a preferred embodiment, the driven wheel a is fixedly connected to one end of a rotating shaft, the rotating shaft is rotatably connected to the top of the treatment box through a supporting column a, a worm is fixedly connected to the other end of the rotating shaft, and the worm is meshed with the worm wheel.

As a preferred embodiment, the driven wheel b is fixedly connected to one end of the impurity removing packing auger, and the impurity removing packing auger is rotatably connected to the groove formed at the bottom end of the fixed plate.

As a preferred implementation mode, the outer side wall of the processing box is provided with a sundry discharging port corresponding to the position of the sundry discharging auger, and the outer side wall of the processing box is provided with a sundry collecting box corresponding to the position of the sundry discharging port.

As a preferred embodiment, the vibrations subassembly includes one end and the rotation axis of following driving wheel c rigid coupling, and the rotation axis passes through support column b rigid coupling in the below of fixed plate, and the rigid coupling has gear d on the other end of rotation axis, and gear d meshes with gear e mutually, gear e rigid coupling is on the lateral wall of connecting axle one end, and the both ends department of connecting axle rotates the below of connecting at the fixed plate through support column c, and equal rigid coupling has the rotation piece on the both ends of connecting axle, and the one end of rotating the piece is passed through the connecting rod and is articulated mutually with the fixed block, and the fixed block rigid coupling is on the bottom surface of.

As a preferred embodiment, two side walls of the sieve plate close to the top and the bottom are fixedly connected with limiting slide blocks, and the four limiting slide blocks are respectively connected in four limiting slide grooves formed in the inner side wall of the fixed plate in a sliding manner.

As a preferred embodiment, the spraying mechanism comprises a liquid medicine box installed on the outer side wall of the treatment box, organic repair liquid is placed in the liquid medicine box, a water pump is installed on one side wall of the liquid medicine box, the water inlet end of the water pump is connected with the bottom of the liquid medicine box, the water outlet end of the water pump is connected with one end of a liquid feeding pipe, the liquid feeding pipe extends into the treatment box and is connected with three spraying pipes, and a plurality of spraying heads are arranged on the three spraying pipes.

In a preferred embodiment, the four corners of the bottom of the treatment box are provided with movable wheels.

As a preferred embodiment, the heavy metal contaminated soil treatment process comprises the following steps:

s1, continuously feeding soil, namely driving the whole body to move forward by agricultural equipment, driving the soil feeding auger a to rotate, then driving the soil feeding auger b to rotate by the universal coupling, continuously feeding soil into the soil feeding pipe under the action of the drill bit, and continuously feeding the soil into the treatment box by the blanking pipe on the soil feeding pipe;

s2, a crushing procedure, namely, a motor is used for working and driving a gear a to rotate, and after the gear a rotates, the gear b and the gear c can synchronously drive two crushing rollers to rotate relatively under the meshing action, so that the soil entering the treatment box is crushed;

s3, a non-decomposable waste separation process; the crushed soil falls onto the sieve plate, the sieve plate screens out the undecomposed garbage in the soil and falls onto a groove at the bottom of the fixed plate, the undecomposed garbage can be separated and discharged after the impurity discharging auger rotates, and the sieve plate is rapidly vibrated in a reciprocating manner under the action of the vibrating component, so that the soil is prevented from blocking sieve pores on the sieve plate;

s4, heavy metal treatment spraying process; the soil after screening falls on the stock guide, utilizes water pump work to take out the liquid medicine of liquid medicine incasement portion to through the effect of liquid delivery pipe and shower, make the liquid medicine evenly spray to the soil on the sieve.

Compared with the prior art, the heavy metal contaminated soil treatment system and the process provided by the invention at least have the following beneficial effects:

(1) the driving wheel is rotated under the meshing action of the gear a, the gear b and the gear c through the operation of the motor, and the driving wheel drives the driven wheel a, the driven wheel b and the driven wheel c to rotate through three belts, so that the whole body is linked, the works of soil feeding, crushing, screening, separation, impurity removal and the like can be synchronously performed, the structure is compact, and the use is easy;

(2) the soil entering the treatment box is crushed, so that on one hand, the subsequent screening and separation work is facilitated, on the other hand, the caked soil can be crushed, the liquid medicine can be uniformly sprayed on the soil, the liquid medicine can quickly permeate into the soil, the repair time is short, and the repair effect can be achieved in a short time;

(3) the undecomposed garbage can be separated and discharged, and the sieve plate is rapidly vibrated in a reciprocating manner under the action of the vibration component, so that the sieve holes on the sieve plate are prevented from being blocked by soil, and the soil remediation diversity is improved;

(4) under the effect of removing the wheel, be convenient for wholly remove, it is intraductal sustainable to send into soil with soil to in handling the case is continuously sent into soil through advancing soil pipe blanking pipe, can last repair work to soil, use in order to be applicable to large tracts of land soil restoration.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic sectional view of the soil inlet pipe of the present invention;

FIG. 4 is a schematic view of the internal components of the treatment tank of the present invention;

FIG. 5 is a schematic view of the bottom of the fixing plate according to the present invention;

FIG. 6 is a schematic structural view of the upper portion of the fixing plate according to the present invention;

FIG. 7 is a schematic view of the spraying mechanism and the material guiding plate according to the present invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 5A according to the present invention.

In the figure: 1. a treatment tank; 2. a fixed mount; 3. a soil inlet pipe; 4. a soil conveying auger a; 5. a universal coupling; 6. b, conveying the soil auger; 7. a drill bit; 8. a blanking pipe; 9. a feed inlet; 10. a worm gear; 11. a motor; 12. a gear a; 13. a gear b; 14. a gear c; 15. a crushing roller; 16. a driving wheel; 17. a driven wheel a; 18. a driven wheel b; 19. a driven wheel c; 20. a rotating shaft; 21. a support pillar a; 22. a worm; 23. a trash discharging auger; 24. a fixing plate; 25. a sieve plate; 26. a limiting slide block; 27. a limiting chute; 28. a vibration assembly; 281. a rotating shaft; 2811. a support pillar b; 282. a gear d; 283. a gear e; 284. a connecting shaft; 2841. a support pillar c; 285. a rotating member; 286. a connecting rod; 287. a fixed block; 29. a through hole; 30. a material guide plate; 31. a soil falling pipe; 32. a spraying mechanism; 321. a liquid medicine box; 322. a water pump; 323. a liquid delivery pipe; 324. a shower pipe; 325. a shower head; 33. a trash discharge port; 34. collecting the sundries; 35. the wheel is moved.

Detailed Description

The invention is further described in connection with the following examples, which are set forth in the following figures.

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the examples may be further adjusted as shown in the figures according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.

Referring to fig. 1-8, the present invention provides a heavy metal contaminated soil treatment system, which comprises a treatment box 1, wherein a side wall of the treatment box 1 is fixedly connected with a soil inlet pipe 3 through two fixing frames 2, the soil inlet pipe 3 is rotatably connected with a soil feeding auger a4, the bottom end of the soil feeding auger a4 is fixedly connected with one end of a soil feeding auger b6 through a universal coupling 5, the other end of the soil feeding auger b6 extends to the outside of the soil inlet pipe 3 and is fixedly connected with a drill bit 7, the outer side wall of the top end of the soil inlet pipe 3 is fixedly connected with a blanking pipe 8, the top of the treatment box 1 is provided with a feeding port 9 corresponding to the blanking pipe 8, the outer side wall of the treatment box 1 is provided with a motor 11, the output shaft of the motor 11 is fixedly connected with a gear a12, the gear a12 is engaged with a gear b13, the gear b13 is engaged with a gear c14, the gear b13 and the gear c14 are respectively and fixedly connected with one, and two crushing rollers 15 are rotatably connected in the treatment box 1, one side surface of a gear c14 is fixedly connected with a driving wheel 16, and the driving wheel 16 is respectively in transmission connection with a driven wheel a17, a driven wheel b18 and a driven wheel c19 through three belts, and a fixing plate 24 is arranged below the two crushing rollers 15, the fixing plate 24 is fixedly connected in the treatment box 1, the cross section of the fixing plate 24 is in a square hook shape, the inner side of the fixing plate 24 is obliquely provided with a sieve plate 25, the bottom of the fixing plate 24 corresponding to the sieve plate 25 is provided with a through hole 29, the bottom of the fixing plate 24 is fixedly provided with a vibration component 28, the vibration component 28 is fixedly connected with the driven wheel c19, the material guide plate 30 is arranged below the fixed plate 24, the material guide plate 30 is fixedly connected in the treatment box 1 in an inclined way, and the bottom of the material guiding plate 30 is fixedly connected with a soil falling pipe 31, the bottom of the soil falling pipe 31 penetrates through the treatment box 1 and extends to the lower part of the bottom of the treatment box 1, and the side wall of the treatment box 1 is further provided with a spraying mechanism 32.

As further shown in fig. 1, 2 and 3, a driven wheel a17 is fixedly connected to one end of a rotating shaft 20, the rotating shaft 20 is rotatably connected to the top of the treatment box 1 through a supporting column a21, a worm 22 is fixedly connected to the other end of the rotating shaft 20, the worm 22 is meshed with the worm wheel 10, the driven wheel a17 rotates to drive the rotating shaft 20 to rotate, the rotating shaft 20 rotates to drive the worm 22 to rotate, the worm 22 rotates to drive the worm wheel 10 to rotate, and further the soil feeding auger a4 in the soil feeding pipe 3 rotates to perform continuous soil feeding operation.

As further shown in fig. 4 and 6, the driven wheel b18 is fixedly connected to one end of the impurity discharging auger 23, the impurity discharging auger 23 is rotatably connected in a groove formed at the bottom end of the fixing plate 24, the driven wheel b18 rotates to drive the impurity discharging auger 23 to rotate, and the impurity discharging auger 23 discharges the screened and separated non-decomposable garbage.

Further as shown in fig. 2, the outer side wall of the processing box 1 is provided with a trash discharging port 33 corresponding to the trash discharging auger 23, a trash collecting box 34 is installed on the outer side wall of the processing box 1 corresponding to the trash discharging port 33, and the undecomposed garbage discharged by the trash discharging auger 23 falls into the trash collecting box 34 through the trash discharging port 33, so that the garbage is convenient to collect and process.

As further shown in fig. 5 and 8, the vibration assembly 28 includes a rotating shaft 281 having one end fixedly connected to the driven wheel c19, the rotating shaft 281 is fixedly connected to the lower portion of the fixed plate 24 through a supporting pillar b2811, a gear d282 is fixedly connected to the other end of the rotating shaft 281, the gear d282 is engaged with a gear e283, the gear e283 is fixedly connected to an outer side wall of one end of the connecting shaft 284, two ends of the connecting shaft 284 are rotatably connected to the lower portion of the fixed plate 24 through a supporting pillar c2841, two ends of the connecting shaft 284 are respectively and fixedly connected to a rotating element 285, one end of the rotating element 285 is hinged to a fixed block 287 through a connecting rod 286, the fixed block 287 is fixedly connected to a bottom surface of the screen plate 25, the driven wheel c19 rotates the rotating shaft 281, the rotating shaft 281 rotates the connecting shaft 284 through the action of the gear d282 and the gear e283 after the rotating shaft 281 rotates, the connecting shaft 284, to avoid soil clogging the sieve holes on the sieve plate 25.

Further as shown in fig. 6, two side walls of the sieve plate 25 near the top and the bottom are fixedly connected with limiting sliding blocks 26, and the four limiting sliding blocks 26 are respectively slidably connected in four limiting sliding grooves 27 formed in the inner side wall of the fixing plate 24, so that the sieve plate 25 has more stability during up-and-down vibration movement through the limiting action of the limiting sliding blocks 26 and the limiting sliding grooves 27.

As further shown in fig. 1 and 7, the spraying mechanism 32 includes a liquid medicine tank 321 installed on the outer side wall of the treatment tank 1, organic repairing liquid is placed in the liquid medicine tank 321, a water pump 322 is installed on one side wall of the liquid medicine tank 321, a water inlet end of the water pump 322 is connected with the bottom of the liquid medicine tank 321, a water outlet end of the water pump 322 is connected with one end of a liquid sending pipe 323, the liquid sending pipe 323 extends into the treatment tank 1 and is connected with three spraying pipes 324, and a plurality of spraying heads 325 are installed on each of the three spraying pipes 324, so that the liquid medicine in the liquid medicine tank 321 is extracted by the operation of the water pump 322, and is uniformly sprayed onto the soil on the sieve plate 25 through the action of the liquid sending pipe 323 and the spraying pipes 324.

Further as shown in fig. 1 and 2, the four corners of the bottom of the treatment box 1 are provided with moving wheels 35, so that the overall mobility is improved.

Further, the heavy metal contaminated soil treatment process comprises the following steps:

s1, continuously feeding soil, namely driving the whole body to move forward by agricultural equipment, driving a soil feeding auger a4 to rotate and then driving a soil feeding auger b6 to rotate through a universal coupling 5, continuously feeding the soil into a soil feeding pipe 3 under the action of a drill bit 7, and continuously feeding the soil into a treatment box 1 through a blanking pipe 8 on the soil feeding pipe 3;

s2, a crushing process, wherein the motor 11 is used for working and driving the gear a12 to rotate, and the gear a12 rotates and then can synchronously drive the two crushing rollers 15 to rotate relatively through the meshing action of the gear b13 and the gear c14, so that the soil entering the treatment box 1 is crushed;

s3, a non-decomposable waste separation process; the crushed soil falls on the sieve plate 25, the sieve plate 25 screens out the undecomposed garbage in the soil and falls on the groove at the bottom of the fixed plate 24, the impurity discharging auger 23 can separate and discharge the undecomposed garbage after rotating, and the sieve plate 25 is rapidly vibrated in a reciprocating way under the action of the vibrating component 28, so that the soil is prevented from blocking sieve pores on the sieve plate 25;

s4, heavy metal treatment spraying process; the screened soil falls onto the material guide plate 30, the liquid medicine in the liquid medicine box 321 is pumped out by the water pump 322, and the liquid medicine is uniformly sprayed onto the soil on the sieve plate 25 under the action of the liquid sending pipe 323 and the spraying pipe 324.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a heavy metal contaminated soil processing system, is including handling case (1), its characterized in that: the soil treatment device is characterized in that a soil inlet pipe (3) is fixedly connected to one side wall of the treatment box (1) through two fixing frames (2), a soil conveying auger a (4) is rotatably connected to the soil inlet pipe (3), the bottom end of the soil conveying auger a (4) is fixedly connected with one end of a soil conveying auger b (6) through a universal coupling (5), the other end of the soil conveying auger b (6) extends to the outside of the soil inlet pipe (3) and is fixedly connected with a drill bit (7), a blanking pipe (8) is fixedly connected to the outer side wall of the top end of the soil inlet pipe (3), a feed inlet (9) is formed in the position of the top of the treatment box (1) corresponding to the blanking pipe (8), a motor (11) is installed on the outer side wall of the treatment box (1), a gear a (12) is fixedly connected to the output shaft of the motor (11), the gear a (12) is meshed with a gear b (13), and the gear b (13) is meshed with a gear c, the gear b (13) and the gear c (14) are respectively and fixedly connected to one end, extending out of the treatment box (1), of each of the two crushing rollers (15), the two crushing rollers (15) are rotatably connected in the treatment box (1), a driving wheel (16) is fixedly connected to one side face of the gear c (14), the driving wheel (16) is respectively in transmission connection with a driven wheel a (17), a driven wheel b (18) and a driven wheel c (19) through three belts, a fixing plate (24) is arranged below the two crushing rollers (15), the fixing plate (24) is fixedly connected in the treatment box (1), the cross section of the fixing plate (24) is in a square shape, a sieve plate (25) is obliquely arranged on the inner side of the fixing plate (24), a through hole (29) is formed in the position, corresponding to the sieve plate (25), of the bottom of the fixing plate (24), and a vibration assembly (28) is fixedly arranged at the bottom of the, and shake subassembly (28) and follow driving wheel c (19) rigid coupling, the below of fixed plate (24) is equipped with stock guide (30), stock guide (30) slope rigid coupling is in handling case (1), and the bottom department rigid coupling of stock guide (30) has a soil falling pipe (31), and the bottom of soil falling pipe (31) runs through and handles case (1) and extend to the below of handling case (1) bottom, still install sprinkling mechanism (32) on the lateral wall of handling case (1).

2. The heavy metal contaminated soil treatment system according to claim 1, wherein: the driven wheel a (17) is fixedly connected to one end of the rotating shaft (20), the rotating shaft (20) is rotatably connected to the upper portion of the top of the treatment box (1) through a supporting column a (21), the other end of the rotating shaft (20) is fixedly connected with a worm (22), and the worm (22) is meshed with the worm wheel (10).

3. The heavy metal contaminated soil treatment system according to claim 1, wherein: the driven wheel b (18) is fixedly connected to one end of the impurity removing packing auger (23), and the impurity removing packing auger (23) is rotatably connected into a groove formed in the bottom end of the fixing plate (24).

4. The heavy metal contaminated soil treatment system according to claim 3, wherein: the outer side wall of the processing box (1) is provided with a trash discharging port (33) corresponding to the position of the trash discharging auger (23), and the position of the outer side wall of the processing box (1) corresponding to the trash discharging port (33) is provided with a trash collecting box (34).

5. The heavy metal contaminated soil treatment system according to claim 1, wherein: the vibrating component (28) comprises a rotating shaft (281) with one end fixedly connected with a driven wheel c (19), the rotating shaft (281) is fixedly connected below the fixing plate (24) through a supporting column b (2811), a gear d (282) is fixedly connected to the other end of the rotating shaft (281), the gear d (282) is meshed with a gear e (283), the gear e (283) is fixedly connected to the outer side wall of one end of the connecting shaft (284), two ends of the connecting shaft (284) are rotatably connected below the fixing plate (24) through supporting columns c (2841), rotating pieces (285) are fixedly connected to two ends of the connecting shaft (284), one end of each rotating piece (285) is hinged to a fixing block (287) through a connecting rod (286), and the fixing block (287) is fixedly connected to the bottom surface of the sieve plate (25).

6. The heavy metal contaminated soil treatment system according to claim 1, wherein: the two side walls of the sieve plate (25) close to the top and the bottom are fixedly connected with limiting slide blocks (26), and the four limiting slide blocks (26) are respectively connected in four limiting slide grooves (27) formed in the inner side wall of the fixing plate (24) in a sliding mode.

7. The heavy metal contaminated soil treatment system according to claim 1, wherein: spray mechanism (32) including installing spray tank (321) on handling case (1) lateral wall, organic restoration liquid has been placed in spray tank (321), and a side wall mounting of spray tank (321) has water pump (322), the end of intaking of water pump (322) is connected with the bottom of spray tank (321), the play water end of water pump (322) is connected with the one end of liquid delivery pipe (323), liquid delivery pipe (323) extend to handle in case (1) and be connected with three shower (324), and all be equipped with a plurality of shower heads (325) on three shower (324).

8. The heavy metal contaminated soil treatment system according to claim 1, wherein: the four corners of the bottom of the treatment box (1) are provided with movable wheels (35).

9. The process for treating the soil polluted by the heavy metal according to any one of claims 1 to 8, which is characterized by comprising the following steps:

s1, continuously feeding soil, namely driving the whole body to move forward by agricultural equipment, driving a soil feeding auger a (4) to rotate, then driving a soil feeding auger b (6) to rotate through a universal coupling (5), continuously feeding the soil into a soil feeding pipe (3) under the action of a drill bit (7), and continuously feeding the soil into a treatment box (1) through a blanking pipe (8) on the soil feeding pipe (3);

s2, a crushing procedure, wherein the motor (11) is used for working and driving the gear a (12) to rotate, and after the gear a (12) rotates, the two crushing rollers (15) can be synchronously driven to rotate relatively through the meshing action of the gear b (13) and the gear c (14), so that the soil entering the treatment box (1) is crushed;

s3, a non-decomposable waste separation process; the crushed soil falls onto the sieve plate (25), the sieve plate (25) screens out the non-decomposable garbage in the soil and falls onto the groove at the bottom of the fixed plate (24), the impurity discharging auger (23) can separate and discharge the non-decomposable garbage after rotating, and under the action of the vibration component (28), the sieve plate (25) is rapidly vibrated in a reciprocating manner, so that the soil is prevented from blocking sieve pores on the sieve plate (25);

s4, heavy metal treatment spraying process; the screened soil falls on the material guide plate (30), the liquid medicine in the liquid medicine box (321) is pumped out by the work of the water pump (322), and the liquid medicine is uniformly sprayed on the soil on the sieve plate (25) under the action of the liquid sending pipe (323) and the spraying pipe (324).