CN112893450A - Heavy metal contaminated soil microorganism repair equipment - Google Patents

Abstract

The invention discloses a heavy metal contaminated soil microorganism remediation device, which belongs to the technical field of soil remediation devices and comprises a support main body, a front arm device, a rear arm device, a walking device and a spraying device, wherein the spraying device is installed at the upper end of the support main body, the walking device is installed at the lower end of the support main body, the front arm device is installed at the front end of the support main body, and the rear arm device is installed at the rear end of the support main body. The microbial remediation of the heavy metal contaminated soil can be realized rapidly, at low cost and in a large area by adopting mechanical operation; realize the soil turning in step, spray and lay the area body, wherein, utilize the soil plough to spray nutrients and microorganism once again to soil after turning over soil, the rear arm device lays the enrichment area body on soil surface afterwards, and the most advanced on the enrichment area body inserts soil, and the enrichment is at most advanced behind the microorganism adsorbs the heavy metal of soil, takes off the heavy metal that can get rid of in the soil behind the enrichment area body, restores soil.

Description

Heavy metal contaminated soil microorganism repair equipment

Technical Field

The invention relates to the technical field of soil remediation equipment, in particular to microorganism remediation equipment for heavy metal contaminated soil.

Background

Heavy metals accumulate in the soil and are harmful to the environment and human health. The microbe repairing method is to reduce the content of heavy metal matter in soil by means of the oxidation, reduction, adsorption and other effect of microbe on heavy metal. Among various methods for remedying the heavy metal contaminated soil, the microbial remediation method has the advantages of good effect, no side effect, low cost and easy implementation.

Patent No. CN201821357992.3 discloses a portable soil pollution is prosthetic devices on spot, including the main part case, the left side fixedly connected with agitator tank at main part roof portion, the bottom fixedly connected with amortization cover of main part incasement wall, and the bottom fixedly connected with first motor of amortization cover inner wall, first motor output shaft fixedly connected with movable rod, the one end that the movable rod kept away from first motor runs through the amortization cover and extends to the outside of amortization cover, the fixed surface that the movable rod is located the outside one end of amortization cover is connected with the master gear, and the surface meshing of master gear has the slave gear, has solved some current soil pollution prosthetic devices, and complicated structure, complex operation, has the mobility poor, and is not flexible enough, and the soil prosthetic effect is more general, and is not thorough enough to harmful processing to the problem that can only single drip washing can be carried out to soil, the whole device is simple and reasonable in structural design, convenient and fast to operate when used, and high in practicability.

The water pump utilizes power to adsorb water in the water tank through a water suction pipe, and the water is conveyed to a spraying head through a drain pipe to spray harmful media in soil through a drain pipe; this leaching method does not remove heavy metals from the soil.

In addition, the current microbial remediation method mainly adopts a mode of spraying microorganisms and nutrients to soil, culturing microorganisms to grow in the soil and act on heavy metals, changing the chemical form of the heavy metal substances and reducing the harm of the heavy metal substances. However, heavy metals cannot be removed from the soil, and the content of heavy metals in the soil is not reduced, so that the heavy metals are easily diffused into the soil again. In other methods, microorganisms containing magnetic substances in bodies are adopted, and after the microorganisms are cultured in soil, the microorganisms and heavy metals adsorbed by the microorganisms are removed by magnetic adsorption, but the magnetic adsorption effect is poor, the operation is complex, and the cost is higher. In addition, the above means are generally manual operation of workers, the efficiency is low, and the method is difficult to adapt to large-area soil remediation work.

Disclosure of Invention

The invention aims to provide the microbial remediation equipment for the heavy metal contaminated soil, which adopts mechanized operation and can rapidly realize the microbial remediation of the heavy metal contaminated soil in a large area at low cost; realize the soil turning in step, spray and lay the area body, wherein, utilize the soil plough to spray nutrients and microorganism once again to soil after turning over soil, the rear arm device lays the enrichment area body on soil surface afterwards, and the most advanced on the enrichment area body inserts soil, and the enrichment is at most advanced behind the microorganism adsorbs the heavy metal of soil, takes off the heavy metal that can get rid of in the soil behind the enrichment area body, restores soil to solve the problem that proposes in the above-mentioned background art.

In order to achieve the purpose, the invention provides the following technical scheme: the microbial remediation equipment for the heavy metal contaminated soil comprises a support main body, a front arm device, a rear arm device, a walking device and a spraying device, wherein the spraying device is installed at the upper end of the support main body, the walking device is installed at the lower end of the support main body, the front arm device is installed at the front end of the support main body, and the rear arm device is installed at the rear end of the support main body;

the bracket main body comprises a bracket plate and side lugs, and the four corners of the bracket plate are provided with the side lugs bent downwards;

the spraying device comprises a liquid storage bin, a nozzle, a water pump, a valve and a water pipe, the liquid storage bin is fixedly connected to the upper surface of the support plate, the nozzle with a downward opening is fixedly connected to the lower end face of the support plate, the nozzle is communicated with the liquid storage bin through the water pipe, and the water pump and the valve are connected to the water pipe;

the front arm device comprises a front side plate, a front swing arm, a soil turning plough and a front arm driving motor, wherein the upper end of the front side plate is rotatably connected with the front swing arm through a bearing, the front swing arm is connected with the front arm driving motor, and the lower end of the front side plate is rotatably connected with the soil turning plough through a bearing;

the rear arm device includes rear side board, back swing arm, area storehouse, the enrichment area body, presses belt clamp, disjunctor, the area body storage reel and pass the set of band spare, the rear end both ends department of support main part is through bolt fixedly connected with rear side board, two be connected with back swing arm between the rear side board, back swing arm fixedly connected with takes the storehouse, the middle part in area storehouse is provided with the area body and takes in the reel and pass the set of band spare, the both ends that the reel was taken in to the area body pass through bearing swivelling joint on taking the storehouse inner wall, the winding has the enrichment area body on the area body storage reel, the lower extreme in area storehouse is provided with presses belt clamp and disjunctor, the disjunctor is located the front end of pressing the belt.

Further, running gear includes track, track drive motor and track transmission shaft, the track is total two, and the both ends of every track all are provided with the gear, fixedly connected with chain on the inner wall of track, gear and chain intermeshing drive track through gear revolve and rotate, are connected with the track transmission shaft between the gear of two tracks, and the track transmission shaft is total two, and one of them track transmission shaft is connected with track drive motor.

Furthermore, the front swing arm comprises two front swing arm plates, a front arm main shaft and a front arm auxiliary shaft, the two front swing arm plates are connected with each other through the front arm main shaft and the front arm auxiliary shaft, the front arm main shaft is located at the upper end of the front swing arm plate, and the front arm auxiliary shaft is located at the lower end of the front swing arm plate.

Further, the plough includes digging driving motor, axle sleeve and plough leaf, the axle sleeve has been cup jointed to the outside of forearm countershaft, fixed connection between axle sleeve and the forearm countershaft is provided with the multi-disc plough leaf that is the annular and distributes on the outer wall of axle sleeve, forearm countershaft and digging driving motor interconnect, digging driving motor installs on preceding swing armplate.

Further, the rear swing arm comprises a rear arm main shaft, a rear swing arm plate and a rear arm driving motor, the rear arm main shaft is connected between the rear side plates through bearings in a rotating mode, the rear swing arm plate is fixedly connected to the two ends of the rear arm main shaft, the rear arm main shaft is fixedly connected with a belt bin through the rear swing arm plate, the rear arm driving motor is connected to one end of the rear arm main shaft, and the rear arm driving motor is installed on the rear side plates.

Furthermore, the belt cabin is a cylinder with an opening at the front end and a sealed rear end.

Further, the belt pressing device comprises a pressing plate and a belt pressing lifting cylinder, and the pressing plate and the belt cabin are connected with each other through the belt pressing lifting cylinder.

Further, the cutter includes blade and cutter lift cylinder, the blade is located the upper end of the enrichment area body, and passes through cutter lift cylinder interconnect between blade and the area storehouse.

Further, pass the area subassembly including passing the band motor and passing the band axle, pass the band axle through bearing swivelling joint in the front end opening part of taking the storehouse, pass the one end of taking the axle and be connected with and pass the band motor, pass the band motor and install on the outer wall of taking the storehouse.

Further, be provided with inside hollow pointed end on the lower surface of enrichment area body, the pointed end is provided with decurrent opening, and the inside packing of pointed end has porous filler.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the microbial remediation equipment for the heavy metal contaminated soil, the soil turning driving motor, the front arm driving motor, the rear arm driving motor, the belt pressing lifting cylinder, the cutter lifting cylinder, the belt transferring motor, the crawler belt driving motor and the water pump are adopted to drive the equipment to operate together, the mechanical operation is realized, and the microbial remediation for the heavy metal contaminated soil can be realized rapidly, at low cost and in a large area.

2. The microorganism remediation equipment for the soil polluted by the heavy metal operates on the soil, and synchronously realizes soil turning, spraying and belt body laying, wherein soil is turned by using the soil turning plough and then nutrient and microorganisms are sprayed to the soil once, the rear arm device lays an enrichment belt body on the soil surface, the tip on the enrichment belt body is inserted into the soil, the microorganisms adsorb the heavy metal in the soil and then enrich the soil at the tip, and the heavy metal in the soil can be removed after the enrichment belt body is uncovered, so that the soil is remedied.

Drawings

FIG. 1 is an overall structural view of a microorganism remediation apparatus for heavy metal contaminated soil according to the present invention;

FIG. 2 is a main structure diagram of a bracket of the microorganism remediation equipment for heavy metal contaminated soil according to the invention;

FIG. 3 is a structural diagram of a spraying device of the microorganism remediation equipment for heavy metal contaminated soil according to the invention;

FIG. 4 is a structural diagram of a walking device of the microorganism remediation equipment for heavy metal contaminated soil according to the invention;

FIG. 5 is a structural diagram of a forearm device of the microorganism remediation equipment for heavy metal contaminated soil according to the invention;

FIG. 6 is a structure view of a plough of the microorganism remediation equipment for heavy metal contaminated soil according to the present invention;

FIG. 7 is a structural diagram of a rear arm device of the microorganism remediation equipment for heavy metal contaminated soil according to the invention;

FIG. 8 is an enlarged view of a portion of the invention at A in FIG. 7;

FIG. 9 is a structural view of an enrichment belt body of the microorganism remediation equipment for heavy metal contaminated soil according to the present invention;

fig. 10 is a partial enlarged view of the invention at B in fig. 9.

In the figure: 1. a stent body; 11. a mounting plate; 12. a lateral ear; 2. a forearm device; 21. a front side plate; 22. a front swing arm; 221. a front swing arm plate; 222. a forearm spindle; 223. a forearm countershaft; 23. a soil turning plow; 231. a soil turning drive motor; 232. a shaft sleeve; 233. plowing the leaves; 24. a forearm drive motor; 3. a rear arm device; 31. a rear side plate; 32. a rear swing arm; 321. a rear arm spindle; 322. a rear swing arm plate; 323. a rear arm drive motor; 33. a belt bin; 34. enriching the belt body; 341. a tip; 35. a belt press; 351. pressing a plate; 352. a belt pressing lifting cylinder; 36. a cutter; 361. a blade; 362. a cutter lifting cylinder; 37. a belt body storage reel; 38. a belt transfer assembly; 381. a charging motor; 382. a belt transferring shaft; 4. a traveling device; 41. a crawler belt; 42. a track drive motor; 43. a track drive shaft; 5. a spraying device; 51. a liquid storage bin; 52. a spout; 53. a water pump; 54. a valve; 55. a water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the microbial remediation equipment for heavy metal contaminated soil comprises a support main body 1, a front arm device 2, a rear arm device 3, a walking device 4 and a spraying device 5, wherein the spraying device 5 is installed at the upper end of the support main body 1, the walking device 4 is installed at the lower end of the support main body 1, the front arm device 2 is installed at the front end of the support main body 1, and the rear arm device 3 is installed at the rear end of the support main body 1; the bracket main body 1 comprises a bracket plate 11 and side lugs 12, wherein the four corners of the bracket plate 11 are provided with the side lugs 12 which are bent downwards; the spraying device 5 comprises a liquid storage bin 51, a nozzle 52, a water pump 53, a valve 54 and a water pipe 55, the liquid storage bin 51 is fixedly connected to the upper surface of the support plate 11, the nozzle 52 with a downward opening is fixedly connected to the lower end surface of the support plate 11, the nozzle 52 is communicated with the liquid storage bin 51 through the water pipe 55, and the water pump 53 and the valve 54 are connected to the water pipe 55; the water pump 53 drives the microorganisms and the liquid nutrients stored in the liquid storage bin 51 to be sprayed out from the nozzle 52, wherein the valve 54 is used for controlling flow, the water pipe 55 is used for conveying, the microorganisms and the liquid nutrients in the culture solution stored in the liquid storage bin 51 are respectively sprayed to the turned soil by using the nozzle 52; so that the microorganism can survive in the soil under the nutrition of the nutrient and realize the oxidation, reduction and adsorption of the heavy metals in the soil; running gear 4 includes track 41, track drive motor 42 and track transmission shaft 43, track 41 is total two, the both ends of every track 41 all are provided with the gear, fixedly connected with chain on the inner wall of track 41, gear and chain intermeshing, it rotates to drive track 41 through gear revolve, be connected with track transmission shaft 43 between the gear of two track 41, track transmission shaft 43 is total two, one of them track transmission shaft 43 is connected with track drive motor 42, it rotates to drive gear and track transmission shaft 43 through track drive motor 42, and then drive chain and track 41 and rotate, be provided with rectangular form plate body between the gear at track 41 both ends, the gear passes through bearing swivelling joint in the both ends of this plate body, a shape for stabilizing track 41.

Referring to fig. 5 to 6, the front arm device 2 includes a front side plate 21, a front swing arm 22, a turning plow 23 and a front arm driving motor 24, the upper end of the front side plate 21 is rotatably connected with the front swing arm 22 through a bearing, the front swing arm 22 is connected with the front arm driving motor 24, the front arm driving motor 24 can rotate to drive the front swing arm 22 to lift, so as to drive the turning plow 23 at the tail end of the front swing arm 22, the turning plow 23 can be driven to rotate by the turning driving motor 231, and can roll and turn soil along with the movement of the equipment, and the lower end of the front side plate 21 is rotatably connected with the turning plow 23 through a bearing; the front swing arm 22 comprises two front swing arm plates 221, a front arm main shaft 222 and a front arm auxiliary shaft 223, the two front swing arm plates 221 are connected with each other through the front arm main shaft 222 and the front arm auxiliary shaft 223, wherein the front arm main shaft 222 is positioned at the upper end of the front swing arm plate 221, and the front arm auxiliary shaft 223 is positioned at the lower end of the front swing arm plate 221; the turning plow 23 comprises a turning driving motor 231, a shaft sleeve 232 and plow blades 233, the shaft sleeve 232 is sleeved outside a front arm auxiliary shaft 223, the shaft sleeve 232 is fixedly connected with the front arm auxiliary shaft 223, a plurality of plow blades 233 which are distributed annularly are arranged on the outer wall of the shaft sleeve 232, the front arm auxiliary shaft 223 is mutually connected with the turning driving motor 231, and the turning driving motor 231 is arranged on a front swing arm plate 221.

Referring to fig. 7 to 10, the rear arm device 3 includes rear side plates 31, rear swing arms 32, belt bins 33, enriched belts 34, belt presses 35, cutters 36, belt storage reels 37 and belt transfer assemblies 38, the rear side plates 31 are fixedly connected to two corners of the rear end of the bracket body 1 through bolts, the rear swing arms 32 are connected between the two rear side plates 31, the rear swing arms 32 are fixedly connected to the belt bins 33, the belt storage reels 37 and the belt transfer assemblies 38 are disposed in the middle of the belt bins 33, two ends of the belt storage reels 37 are rotatably connected to the inner walls of the belt bins 33 through bearings, the enriched belts 34 are wound on the belt storage reels 37, the lower ends of the belt bins 33 are provided with belt presses 35 and cutter belts 36, the cutters 36 are disposed at the front ends of the belt presses 35, the enriched belts 34 are released from the belt bins 33 along with the movement of the apparatus and laid on the soil surface, the belt presses 35 are pressed downward to press the tips 341 of the enriched belts 34 into the soil, the enrichment belt body 34 can be cut off after the end of the ridge is reached; turning around the equipment, and turning over, spraying and laying the soil on the next ridge; the equipment runs on the land to synchronously realize soil turning, spraying and belt body laying; then the mixture is placed for one to two weeks, and the equipment can be used for spraying the nutrients for one more time; after adsorbing heavy metals in the soil, the microorganisms gradually enrich the surface of the tip 341 of the enrichment band body 34; after two weeks, the enrichment belt body 34 is uncovered from the soil and taken away, and the enriched microorganisms and the heavy metals adsorbed by the microorganisms are thoroughly removed from the soil; the rear swing arm 32 comprises a rear arm main shaft 321, a rear swing arm plate 322 and a rear arm driving motor 323, the rear arm main shaft 321 is rotatably connected between the two rear side plates 31 through a bearing, the rear swing arm plate 322 is fixedly connected at two ends of the rear arm main shaft 321, the rear arm main shaft 321 is fixedly connected with the belt bin 33 through the rear swing arm plate 322, one end of the rear arm main shaft 321 is connected with the rear arm driving motor 323, the rear arm driving motor 323 is installed on the rear side plates 31, the rear end of the equipment drives the rear swing arm 32 to rotate and lift to drive the belt bin 33 by using the rear arm driving motor 323, the belt bin 33 is wound with the enrichment belt body 34, the lower surface of the enrichment belt body 34 is provided with a hollow tip 341, porous filler is filled in the tip 341, and the porous filler is filled in the tip 341 after being soaked with nutrients; the belt cabin 33 is a cylinder with an opening at the front end and a sealed rear end; the belt pressing device 35 comprises a pressing plate 351 and a belt pressing lifting cylinder 352, and the pressing plate 351 and the belt bin 33 are connected with each other through the belt pressing lifting cylinder 352; the cutter 36 comprises a blade 361 and a cutter lifting cylinder 362, the blade 361 is positioned at the upper end of the enrichment belt body 34, the blade 361 and the belt bin 33 are connected with each other through the cutter lifting cylinder 362, and the cutter lifting cylinder 362 drives the blade 361 to descend to cut off the enrichment belt body 34; the belt transferring assembly 38 comprises a belt transferring motor 381 and a belt transferring shaft 382, the belt transferring shaft 382 is rotatably connected to an opening at the front end of the belt bin 33 through a bearing, one end of the belt transferring shaft 382 is connected with the belt transferring motor 381, the belt transferring motor 381 is installed on the outer wall of the belt bin 33, one end of the enrichment belt body 34 extends to the opening of the belt bin 33 after passing through the upper surface of the belt transferring shaft 382, and extends downwards after passing through the opening of the belt bin 33, then one surface with a tip 341 clings to the ground, and the belt transferring motor 381 rotates to drive the enrichment belt body 34 to extend outwards along the opening direction of the belt bin 33; a tip 341 having a hollow inside is provided on the lower surface of the enrichment tape body 34, the tip 341 is provided with a downward opening, and the inside of the tip 341 is filled with a porous packing.

The working principle is as follows: the equipment is borne by a walking device 4 and a bracket thereof, adapts to field actions, and is characterized in that a soil turning driving motor 231, a front arm driving motor 24, a rear arm driving motor 323, a pressing belt lifting cylinder 352, a cutter lifting cylinder 362, a belt transferring motor 381, a crawler belt transmission motor 42 and a water pump 53 are connected with a remote controller through wireless signals, so that the equipment can be remotely controlled or automatically driven by artificial intelligence; the front arm driving motor 24 can rotate to drive the front swing arm 22 to lift and further drive the turning plow 23 at the tail end of the front swing arm 22, the turning plow 23 can be driven to rotate by the turning driving motor 231, and the turning plow 23 can roll and turn soil along with the movement of the equipment; microorganisms and liquid nutrients in the culture solution are stored in the liquid storage bin 51 and are respectively sprayed to the turned-up soil by using the nozzles 52; so that the microorganism can survive in the soil under the nutrition of the nutrient and realize the oxidation, reduction and adsorption of the heavy metals in the soil; the rear end of the equipment drives the rear swing arm 32 to rotate and lift by using the rear arm driving motor 323 to drive the belt bin 33, the enrichment belt body 34 is coiled in the belt bin 33, the lower surface of the enrichment belt body 34 is provided with a hollow tip 341, porous filler is filled in the tip 341, and the porous filler is filled in the tip 341 after being soaked in nutrient substances; along with the action of the equipment, the enrichment strip body 34 is released from the strip bin 33 and is laid on the soil surface, then the strip press 35 is pressed downwards to press the tip 341 of the enrichment strip body 34 into the soil, and the enrichment strip body 34 can be cut off after the end of the ridge is reached; turning around the equipment, and turning over, spraying and laying the soil on the next ridge; the equipment runs on the land to synchronously realize soil turning, spraying and belt body laying; then the mixture is placed for one to two weeks, and the equipment can be used for spraying the nutrients for one more time; after adsorbing heavy metals in the soil, the microorganisms gradually enrich the surface of the tip 341 of the enrichment band body 34; after two weeks, the enrichment strip 34 is uncovered from the soil and the enriched microorganisms and their adsorbed heavy metals are completely removed from the soil.

In summary, the following steps: according to the microbial remediation equipment for the soil polluted by the heavy metal, the enrichment belt body 34 is adopted to enrich microbes, the aim of reducing the content of the heavy metal in the soil is fulfilled after the microbes adsorbing the heavy metal are removed, the microbial remediation equipment runs on the soil, and the soil turning, spraying and belt body laying can be synchronously realized; and the microbial remediation of the heavy metal contaminated soil can be realized rapidly at low cost and in a large area by adopting mechanical operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (10)

1. The microbial remediation equipment for the heavy metal contaminated soil is characterized by comprising a support main body (1), a front arm device (2), a rear arm device (3), a walking device (4) and a spraying device (5), wherein the spraying device (5) is installed at the upper end of the support main body (1), the walking device (4) is installed at the lower end of the support main body (1), the front arm device (2) is installed at the front end of the support main body (1), and the rear arm device (3) is installed at the rear end of the support main body (1);

the bracket main body (1) comprises a bracket plate (11) and side lugs (12), wherein the four corners of the bracket plate (11) are provided with the side lugs (12) which are bent downwards;

the spraying device (5) comprises a liquid storage bin (51), a nozzle (52), a water pump (53), a valve (54) and a water pipe (55), the liquid storage bin (51) is fixedly connected to the upper surface of the support plate (11), the nozzle (52) with a downward opening is fixedly connected to the lower end face of the support plate (11), the nozzle (52) is communicated with the liquid storage bin (51) through the water pipe (55), and the water pump (53) and the valve (54) are connected to the water pipe (55);

the front arm device (2) comprises a front side plate (21), a front swing arm (22), a soil turning plough (23) and a front arm driving motor (24), wherein the upper end of the front side plate (21) is rotatably connected with the front swing arm (22) through a bearing, the front swing arm (22) is connected with the front arm driving motor (24), and the lower end of the front side plate (21) is rotatably connected with the soil turning plough (23) through a bearing;

the rear arm device (3) comprises a rear side plate (31), a rear swing arm (32), a belt bin (33), an enrichment belt body (34), a belt pressing device (35), a cutter (36), a belt body storage reel (37) and a belt passing assembly (38), wherein the two corners of the rear end of the support main body (1) are fixedly connected with the rear side plate (31) through bolts, the rear swing arm (32) is connected between the rear side plates (31), the rear swing arm (32) is fixedly connected with the belt bin (33), the belt body storage reel (37) and the belt passing assembly (38) are arranged in the middle of the belt bin (33), the two ends of the belt body storage reel (37) are rotatably connected onto the inner wall of the belt bin (33) through bearings, the enrichment belt body (34) is wound on the belt body storage reel (37), the belt pressing device (35) and the cutter (36) are arranged at the lower end of the belt bin (33), the cutter (36) is positioned at the front end of the belt pressing device (35).

2. The microbial remediation equipment for soil contaminated by heavy metals as claimed in claim 1, wherein the traveling device (4) comprises two crawler belts (41), two crawler belt transmission motors (42) and two crawler belt transmission shafts (43), gears are arranged at two ends of each crawler belt (41), a chain is fixedly connected to the inner wall of each crawler belt (41), the gears are meshed with the chains, the crawler belts (41) are driven to rotate through rotation of the gears, the crawler belt transmission shafts (43) are connected between the gears of the two crawler belts (41), the number of the crawler belt transmission shafts (43) is two, and one crawler belt transmission shaft (43) is connected with the crawler belt transmission motor (42).

3. The microbial remediation device for heavy metal contaminated soil according to claim 1, wherein the front swing arm (22) comprises two front swing arm plates (221), a front arm main shaft (222) and a front arm auxiliary shaft (223), the two front swing arm plates (221) are connected with each other through the front arm main shaft (222) and the front arm auxiliary shaft (223), the front arm main shaft (222) is located at the upper end of the front swing arm plate (221), and the front arm auxiliary shaft (223) is located at the lower end of the front swing arm plate (221).

4. The microbial remediation device for heavy metal contaminated soil according to claim 3, wherein the soil turning plow (23) comprises a soil turning driving motor (231), a shaft sleeve (232) and plow blades (233), the shaft sleeve (232) is sleeved outside the front arm auxiliary shaft (223), the shaft sleeve (232) is fixedly connected with the front arm auxiliary shaft (223), a plurality of plow blades (233) are annularly distributed on the outer wall of the shaft sleeve (232), the front arm auxiliary shaft (223) is connected with the soil turning driving motor (231), and the soil turning driving motor (231) is mounted on the front swing arm plate (221).

5. The microbial remediation device for heavy metal contaminated soil according to claim 1, wherein the rear swing arm (32) comprises a rear arm main shaft (321), a rear swing arm plate (322) and a rear arm driving motor (323), the rear arm main shaft (321) is rotatably connected between the two rear side plates (31) through a bearing, the rear swing arm plate (322) is fixedly connected to two ends of the rear arm main shaft (321), the belt bin (33) is fixedly connected to the rear arm main shaft (321) through the rear swing arm plate (322), the rear arm driving motor (323) is connected to one end of the rear arm main shaft (321), and the rear arm driving motor (323) is installed on the rear side plates (31).

6. The microbial remediation device for heavy metal contaminated soil as claimed in claim 1, wherein the belt chamber (33) is a cylinder with an open front end and a sealed rear end.

7. The microbial remediation equipment for heavy metal contaminated soil according to claim 1, wherein the belt press (35) comprises a pressing plate (351) and a belt pressing lifting cylinder (352), and the pressing plate (351) and the belt chamber (33) are connected with each other through the belt pressing lifting cylinder (352).

8. The microbial remediation equipment for heavy metal contaminated soil according to claim 1, wherein the cutter (36) comprises a blade (361) and a cutter lifting cylinder (362), the blade (361) is located at the upper end of the enrichment belt body (34), and the blade (361) and the belt bin (33) are connected with each other through the cutter lifting cylinder (362).

9. The microbial remediation device for heavy metal contaminated soil according to claim 1, wherein the belt transfer component (38) comprises a belt transfer motor (381) and a belt transfer shaft (382), the belt transfer shaft (382) is rotatably connected to the opening at the front end of the belt chamber (33) through a bearing, the belt transfer motor (381) is connected to one end of the belt transfer shaft (382), and the belt transfer motor (381) is installed on the outer wall of the belt chamber (33).

10. The microbial remediation device for heavy metal contaminated soil according to claim 1, wherein the enrichment strip body (34) is provided with a hollow tip (341) on the lower surface, the tip (341) is provided with a downward opening, and the inside of the tip (341) is filled with the porous filler.

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