CN111729927B

CN111729927B - Efficient soil remediation device and remediation method thereof

Info

Publication number: CN111729927B
Application number: CN202010545787.5A
Authority: CN
Inventors: 李霞; 殷志强; 万利勤; 安永龙; 李文娟
Original assignee: CHINA GEOLOGICAL ENVIRONMENTAL MONITORING INSTITUTE
Current assignee: CHINA GEOLOGICAL ENVIRONMENTAL MONITORING INSTITUTE
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2022-01-28
Anticipated expiration: 2040-06-16
Also published as: CN111729927A

Abstract

The invention provides an efficient soil remediation device, which comprises: a vehicle body; the conveying device comprises a flat inclined shovel arranged on the front side of the vehicle body, a rotary poking wheel arranged in the flat inclined shovel and a conveying belt arranged in the vehicle body; the spraying device is arranged in the vehicle body; the excavating device comprises an excavating cylinder, a shovel opening, a driving device and a soil discharging opening, wherein the excavating cylinder is arranged on the front side of the vehicle body and is arranged above the flat inclined shovel; an operation device provided in the vehicle body; and the traveling device is arranged below the vehicle body. The invention has the beneficial effects that: highly integrated, independent and complete soil remediation equipment is formed, and no additional working procedure is needed from the soil to be remediated to the completion of treatment; can reach the place that needs at any time, can regard as emergency treatment equipment, simple structure, convenient operation, area is few, and work efficiency and security are high, and absorption effect is good, and the normal position is directly backfilled to prosthetic soil, is favorable to realizing continuous high-efficient restoration operation.

Description

Efficient soil remediation device and remediation method thereof

Technical Field

The invention relates to the field of soil remediation, in particular to a high-efficiency soil remediation device and a remediation method thereof.

Background

The soil not only provides mechanical support capability for plant growth, but also provides fertility factors such as water, fertilizer, gas, heat and the like required by the growth and development of the plant. In recent years, due to the rapid increase of population, the continuous acceleration of industrialization process, the unreasonable exploitation and smelting discharge of mineral resources, the long-term sewage irrigation and sludge application, the application of chemical fertilizers and pesticides and other reasons to soil, solid wastes are continuously stacked and dumped on the surface of soil, harmful wastewater continuously permeates into the soil, harmful gas and floating dust in the atmosphere continuously fall into the soil along with rainwater, and the problem of more and more serious soil pollution is caused.

Pollution in the soil influences people's health very greatly, the soil pollution problem has also received attention gradually, but present farmland soil restoration is exactly directly spills repair liquid to the farmland in general, not only soil absorbs slowly, it is consuming time long, cause repair liquid evaporation easily, and because soil is the monolithic form mostly, be difficult for absorbing repair liquid, it sprays too much to appear top layer repair liquid, the too few phenomenon of bottom layer repair liquid, soil repair effect is not obvious, and if solve through increaseing repair liquid spraying amount, also can increase the restoration cost.

In addition, when the existing efficient soil remediation device is used for soil treatment, equipment needs to be installed and matched on site, and if a field without power is encountered, power equipment needs to be additionally matched, so that the labor intensity is high, and the cost is high. Meanwhile, most of the existing soil treatment equipment cannot be moved, the places cannot be replaced in time according to the requirements of different places, the working efficiency is reduced, and meanwhile, the sudden soil pollution accidents cannot be subjected to rapid emergency treatment.

Disclosure of Invention

The invention provides an efficient soil remediation device and a remediation method thereof, and solves the problems in the prior art.

The technical scheme of the invention is realized as follows:

an efficient soil remediation device comprising:

a vehicle body;

the conveying device comprises a flat inclined shovel, a rotary poking wheel and a conveying belt, wherein the flat inclined shovel is arranged on the front side of the vehicle body, the rotary poking wheel is arranged in the flat inclined shovel, and the conveying belt is arranged in the vehicle body;

the spraying device is arranged in the vehicle body and matched with the conveying belt;

the excavating device comprises an excavating cylinder, a soil shoveling opening, a transmission device and a soil discharging opening, the excavating cylinder is arranged on the front side of the vehicle body and is arranged above the flat inclined shovel, the soil shoveling opening is arranged on the excavating cylinder, the transmission device is connected with the excavating cylinder, and the soil discharging opening is arranged on the bottom surface of the excavating cylinder;

an operation device provided in the vehicle body;

and the traveling device is arranged below the vehicle body.

Further, the flat inclined blade includes:

the shovel body is arranged on the front side of the vehicle body;

the front inclined plate comprises a first front inclined plate arranged on one side of the shovel body and a second front inclined plate arranged on the other side of the shovel body;

the rear inclined plate comprises a first rear inclined plate and a second rear inclined plate which are arranged on the rear side of the shovel body;

the first front inclined plate, the second front inclined plate, the first rear inclined plate and the second rear inclined plate surround to form a soil inlet and a soil outlet, and the width of the soil inlet is greater than that of the soil outlet.

Further, the spinning wheel includes:

the wheel body is connected with the flat inclined shovel;

the rotary dialing motor is arranged in the wheel body;

the wheel plate is connected with the wheel body and is an L-shaped wheel plate.

Further, the conveying device further comprises:

unearthed angle adjusting device, including swivel back shaft, alignment jig, slide opening, locking shaft and locking wheel, the swivel back shaft with vehicle body connection, alignment jig one end set up in on the swivel back shaft, be equipped with the slide opening on the alignment jig, the alignment jig other end set up in on the locking shaft, the locking shaft both ends are provided with the locking wheel.

Further, the spraying device comprises:

the liquid storage tank is arranged in the vehicle body;

the conveying pipe is arranged in the vehicle body and is connected with the liquid storage tank;

and the spraying head is arranged on the conveying pipe and matched with the conveying belt.

Further, the excavating cylinder comprises a first excavating cylinder and a second excavating cylinder, the opening directions of the shovel openings on the first excavating cylinder and the second excavating cylinder are mirror symmetry, and the rotation direction of the first excavating cylinder is opposite to that of the second excavating cylinder.

Further, the operation device includes:

the transparent protective shell is connected with the vehicle body and encloses to form an operation space;

a seat disposed within the operating space;

an operation table disposed in front of the seat;

the operating rod is arranged on the operating table;

and the display screen is arranged on the operating platform.

Preferably, the running gear is a crawler running gear.

Further, the efficient soil remediation device of the present invention further comprises:

the soil unloading opening is arranged on the vehicle body;

and the soil unloading plate is arranged on the vehicle body and is matched with the soil unloading opening.

A method for repairing a high efficiency soil remediation device as claimed in any one of the preceding claims, comprising the steps of:

covering the ground straw mixture on the soil to be repaired;

starting a rotary poking wheel, a conveying belt and an excavating cylinder, and enabling the flat inclined shovel to be obliquely inserted into the soil to be repaired, wherein the soil to be repaired, which is shoveled by the flat inclined shovel, and the soil to be repaired, which is rotationally excavated by the excavating cylinder, enter the flat inclined shovel, and the rotary poking wheel pokes the soil to be repaired, which enters the flat inclined shovel, onto the conveying belt;

starting the spraying device, and spraying a preset soil remediation liquid into the soil to be remediated on the conveyor belt by the spraying device;

and the conveying belt discharges the soil to be repaired after being mixed with the soil repairing liquid.

The invention has the beneficial effects that:

the efficient soil remediation device comprises a conveying device, a spraying device, an excavating device, an operating device and a traveling device, and is organically combined with a vehicle body to form a set of highly integrated, independent and complete soil remediation equipment, and the whole process from the soil to be remediated to the completion of the treatment does not need to add additional working procedures, so that the existing treatment working procedures are greatly simplified; the structure of the excavating device is beneficial to excavating the soil to be repaired, and the excavating device also has a crushing function and can effectively reduce dust; the repairing liquid can be fully mixed with the crushed soil, so that the repairing effect and quality of the soil are improved; the device can be sent to a place needing soil remediation at any time according to requirements, and can be used as emergency treatment equipment for major environmental pollution accidents; the efficient soil remediation device and the remediation method thereof have the advantages of simple structure and steps, convenience in use and operation, small occupied area, improvement in working efficiency and safety, improvement in absorption rate and absorption effect, direct backfilling of the remediated soil in situ, and contribution to realizing continuous and efficient remediation operation of the soil.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an efficient soil remediation device according to the present invention;

FIG. 2 is another schematic diagram of an efficient soil remediation device according to the present invention;

FIG. 3 is a schematic structural view of an excavating cylinder of an efficient soil remediation device of the present invention;

FIG. 4 is a cross-sectional view of an excavation cartridge of a high efficiency soil remediation device of the present invention;

FIG. 5 is a schematic structural view of a soil-discharging angle adjusting device of an efficient soil remediation device according to the present invention;

FIG. 6 is another schematic structural view of the soil-discharging angle adjusting device of the efficient soil remediation device of the present invention;

FIG. 7 is another schematic diagram of an efficient soil remediation device according to the present invention;

FIG. 8 is another schematic diagram of an efficient soil remediation device according to the present invention;

FIG. 9 is a schematic view of a conveyor belt of an efficient soil remediation device according to the present invention;

FIG. 10 is another schematic view of an efficient soil remediation device according to the present invention;

FIG. 11 is another schematic view of an efficient soil remediation device according to the present invention;

FIG. 12 is another schematic diagram of the conveyor belt of an efficient soil remediation device according to the present invention;

figure 13 is another cross-sectional view of the excavation cartridge of a highly efficient soil remediation device of the present invention.

In the figure:

1. a vehicle body; 2. leveling an inclined shovel; 3. a rotary dial wheel; 4. a conveyor belt; 5. excavating a barrel; 6. a soil shoveling port; 7. a transmission device; 8. a soil discharge port; 9. a traveling device; 10. a shovel body; 11. a first front swash plate; 12. a second front swash plate; 13. a first rear sloping plate; 14. a second rear sloping plate; 15. a soil inlet; 16. a soil outlet; 17. a wheel body; 18. a wheel plate; 19. a soil-discharging angle adjusting device; 20. rotating the support shaft; 21. an adjusting bracket; 22. a slide hole; 23. a locking wheel; 24. a delivery pipe; 25. a sprinkler head; 26. a first excavating cylinder; 27. a second digging barrel; 28. a transparent protective shell; 29. a seat; 30. an operation table; 31. an operating lever; 32. a display screen; 33. a soil unloading port; 34. unloading the soil plate; 35. a first conveyor belt; 36. a second conveyor belt; 37. a third conveyor belt; 38. a soil unloading rotating shaft; 39. supporting the telescopic rod; 40. a scraper plate; 41. a liquid discharge port; 42. a drive shaft; 43. a first drive belt; 44. a second belt; 45. a first bearing; 46. a second bearing; 47. a shaft sleeve; 48. a support frame.

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.

As shown in fig. 1 to 13, a high efficiency soil remediation device according to the present invention includes:

a vehicle body 1;

the conveying device comprises a flat inclined shovel 2, a rotary poking wheel 3 and a conveying belt 4, wherein the flat inclined shovel 2 is arranged on the front side of the vehicle body 1, the rotary poking wheel 3 is arranged in the flat inclined shovel 2, and the conveying belt 4 is arranged in the vehicle body 1;

the spraying device is arranged in the vehicle body 1 and matched with the conveying belt 4;

the excavating device comprises an excavating cylinder 5, a soil shoveling port 6, a transmission device 7 and a soil discharging port 8, wherein the excavating cylinder 5 is arranged on the front side of the vehicle body 1 and above the flat inclined shovel 2, the soil shoveling port 6 is arranged on the excavating cylinder 5, the transmission device 7 is connected with the excavating cylinder 5, and the soil discharging port 8 is arranged on the bottom surface of the excavating cylinder 5;

an operation device provided in the vehicle body 1;

the traveling device 9 is provided below the vehicle body 1.

Specifically, the front part of the flat inclined shovel 2 is straight, the rear part of the flat inclined shovel is inclined, and the rotary dial wheel 3 is arranged in an inclined area at the rear part of the flat inclined shovel 2; the digging cylinder 5 can be arranged on a support frame 48, and the support frame 48 is connected with the vehicle body 1; the soil discharge port 8 may be a circular hole or a hole of another shape, the number of the soil discharge ports 8 may be one, two or more, and as long as the soil discharge ports 8 can smoothly discharge the soil to be restored, which enters the excavating cylinder 5 from the soil shoveling port 6, onto the flat inclined blade 2, the invention is not limited to the diameter of the circular hole or the shape of the soil discharge port 8.

The efficient soil remediation device comprises a conveying device, a spraying device, an excavating device, an operating device and a traveling device 9, and is organically combined with a vehicle body 1 to form a set of highly integrated, independent and complete soil remediation equipment, and the whole process is free from additional processes from the completion of the treatment of the soil to be remediated, so that the existing treatment processes are greatly simplified; the structure of the excavating device is beneficial to excavating the soil to be repaired, and the excavating device also has a crushing function and can effectively reduce dust; the repairing liquid can be fully mixed with the ground soil to be repaired, so that the repairing effect and quality of the soil are improved; the device can be sent to a place needing soil remediation at any time according to requirements, and can be used as emergency treatment equipment for major environmental pollution accidents; simple structure, convenient to use, area is few, has improved work efficiency and security, has improved absorptivity and absorption effect, and the normal position can directly be backfilled to the soil after the restoration, is favorable to realizing the continuous high-efficient restoration operation of soil.

The efficient soil remediation device provided by the invention can further comprise:

a chassis connected with the traveling device 9;

the vehicle body 1 is rotatably provided on the chassis by a rotating device.

According to the efficient soil remediation device, the vehicle body 1 can rotate relative to the chassis by arranging the rotating device, so that the excavating cylinder 5 can have a wider working range.

Wherein the transmission means 7 may comprise:

the transmission shaft 42 is arranged in the excavating cylinder 5, one end of the transmission shaft 42 is connected with the top surface of the excavating cylinder 5, and the other end of the transmission shaft 42 is connected with the bottom surface of the excavating cylinder 5;

and the transmission belt comprises a first transmission belt 43 connected with one end of the transmission shaft 42 and a second transmission belt 44 connected with the other end of the transmission shaft 42.

According to the efficient soil remediation device, the first transmission belt 43 and the second transmission belt 44 drive the transmission shaft 42 to rotate, the transmission shaft 42 drives the excavating cylinder 5 to rotate, the first transmission belt 43 and the second transmission belt 44 can be arranged in the support frame 48, the other end of the first transmission belt 43 and the other end of the second transmission belt 44 can be connected with the driving motor in the vehicle body 1, and the connection of the transmission belts and the motor belongs to a conventional technical means, so that the efficient soil remediation device can be realized without creative labor of a person skilled in the art, and therefore, the efficient soil remediation device is not repeated herein.

Wherein, the transmission device 7 may further include:

a first bearing 45, wherein the first bearing 45 is connected with one end of the transmission shaft 42;

and a second bearing 46, wherein the second bearing 46 is connected with the other end of the transmission shaft 42.

According to the efficient soil remediation device, the transmission shaft 42 can run more efficiently and stably by arranging the first bearing 45 and the second bearing 46.

Wherein, the transmission device 7 may further include:

and a sleeve 47 disposed outside the transmission shaft.

According to the efficient soil remediation device, the shaft sleeve 47 is arranged, so that the sealing performance can be improved, the maintenance frequency can be reduced, and the service life can be prolonged.

Wherein the flat blade 2 may include:

a shovel body 10 provided on the front side of the vehicle body 1;

the front inclined plate comprises a first front inclined plate 11 arranged on one side of the shovel body 10 and a second front inclined plate 12 arranged on the other side of the shovel body 10;

a rear swash plate including a first rear swash plate 13 and a second rear swash plate 14 provided at the rear side of the shovel body 10;

the first front inclined plate 11, the second front inclined plate 12, the first rear inclined plate 13 and the second rear inclined plate 14 enclose to form a soil inlet 15 and a soil outlet 16, and the width of the soil inlet 15 is greater than that of the soil outlet 16.

According to the efficient soil remediation device, the first front inclined plate 11, the second front inclined plate 12, the first rear inclined plate 13 and the second rear inclined plate 14 are enclosed to form the soil inlet 15 and the soil outlet 16, the width of the soil inlet 15 is larger than that of the soil outlet 16, so that soil to be remediated can be collected on the conveying belt 4, meanwhile, the front inclined plate and the rear inclined plate are obliquely arranged, so that the soil to be remediated falling from a high position can be collected, and the working efficiency is further improved.

Wherein, the dial wheel 3 may include:

the wheel body 17 is connected with the flat inclined shovel 2;

the rotary dialing motor is arranged in the wheel body 17;

and a wheel plate 18 connected with the wheel body 17, wherein the wheel plate 18 is an L-shaped wheel plate.

Specifically, the rotary shifting motor is arranged in the wheel body 17, and can obtain electric energy through a lead which can penetrate through the flat inclined shovel 2 to be connected with the vehicle body 1; wheel plate 18 is L type wheel plate, it is the L type to indicate wheel plate 18's cross section, specifically, wheel plate 18 includes a diaphragm and a riser, diaphragm and flat inclined blade 2 parallel and level, the riser can set up perpendicularly with the diaphragm, also can the slope sets up, the marginal part of diaphragm and riser can be thinner, so that insert and stir the soil of waiting to restore that gets into flat inclined blade 2, all the other parts are thicker, with the gaining in strength, and by thin to thick transition gradually, can form the inclined plane, can promote the efficiency of stirring soil, and simultaneously, wheel plate 18 has the radian, further gaining in strength, and do benefit to and stir more soil.

Wherein the conveying device may further include:

unearthed angle adjusting device 19, including swivel support shaft 20, alignment jig 21, slide opening 22, locking shaft and locking wheel 23, swivel support shaft 20 is connected with automobile body 1, and alignment jig 21 one end sets up on swivel support shaft 20, is equipped with slide opening 22 on the alignment jig 21, and the alignment jig 21 other end sets up on locking shaft, and the locking shaft both ends are provided with locking wheel 23.

When the soil unloading device is used, the locking wheel 23 can be loosened, the locking wheel 23 is moved, and the locking wheel 23 drives the locking shaft to move along the sliding hole 22, so that the inclined angle of the conveying belt 4 arranged on the rotating support shaft 20 and the locking shaft is changed, and the soil unloading angle is finally realized.

Wherein the spraying device may include:

the liquid storage tank is arranged in the vehicle body 1;

a delivery pipe 24 disposed in the vehicle body 1 and connected to the liquid storage tank;

and a sprinkler 25 disposed on the conveying pipe 24 to match the conveying belt 4.

The excavating cylinder 5 includes a first excavating cylinder 26 and a second excavating cylinder 27, the opening directions of the shovel ports 6 in the first excavating cylinder 26 and the second excavating cylinder 27 are mirror-symmetrical, and the rotation direction of the first excavating cylinder 26 is opposite to the rotation direction of the second excavating cylinder 27.

Wherein, preferably, the sum of the widths of the first digging cylinder 26 and the second digging cylinder 27 is greater than or equal to the width of the vehicle body 1.

Specifically, the opening directions of the shovel openings 6 on the first excavating cylinder 26 and the second excavating cylinder 27 are mirror-symmetrical, which means that the shovel openings 6 on the first excavating cylinder 26 and the shovel openings 6 on the second excavating cylinder 27 are both facing the central axis of the vehicle body 1 or both facing the two sides of the vehicle body 1; the rotation direction of the first excavating cylinder 26 is opposite to the rotation direction of the second excavating cylinder 27, which means that when the rotation direction of the first excavating cylinder 26 is clockwise, the rotation direction of the second excavating cylinder 27 is counterclockwise or opposite; in addition, the support bracket 48 can be moved and locked relative to the vehicle body 1, so that the distance between the first excavating cylinder 26 and the second excavating cylinder 27 can be adjusted.

According to the efficient soil remediation device, the excavating cylinder 5 comprises the first excavating cylinder 26 and the second excavating cylinder 27, the opening directions of the soil shoveling openings 6 on the first excavating cylinder 26 and the second excavating cylinder 27 are mirror-symmetrical, and the rotating direction of the first excavating cylinder 26 is opposite to that of the second excavating cylinder 27, so that stable operation can be ensured, and the working efficiency can be improved.

Wherein the operating means may include:

a transparent protective shell 28 connected with the vehicle body 1 and enclosing to form an operation space;

a seat 29 provided in the operation space;

an operation table 30 provided in front of the seat 29;

an operation lever 31 provided on the operation table 30;

and a display screen 32 provided on the console 30.

According to the efficient soil remediation device, the transparent protective shell 28 can be set to be different shapes according to actual requirements; a hand support is arranged on the seat 29 so as to support the arm of a worker when the worker operates the operating rod 31, and the labor intensity is reduced; the display screen 32 may display the overall work situation, work goals, etc.

Preferably, the traveling device 9 is a crawler traveling device to avoid being trapped in soft soil below the body 1 after excavation.

The efficient soil remediation device is characterized by further comprising:

a soil discharge port 33 provided in the vehicle body 1;

and the soil unloading plate 34 is arranged on the vehicle body 1 and matched with the soil unloading opening 33.

Specifically, the specific positions and structures of the soil discharging opening 33 and the soil discharging plate 34 have two modes:

1. the soil discharge port 33 is arranged at the upper side and the rear side of the vehicle body 1, the conveyor belt 4 comprises a first conveyor belt 35, the first conveyor belt 35 is obliquely arranged in the vehicle body 1, the soil discharge plate 34 is adjustably arranged at the upper side of the vehicle body 1 to adjust the falling angle of the soil to be repaired when the soil flies out of the soil discharge port 33, and the soil discharge plate 34 can be rotatably connected with the vehicle body 1 through a supporting telescopic rod;

2. the soil unloading opening 33 is arranged at the rear side of the vehicle body 1, the conveying belt 4 comprises a first conveying belt 35, a second conveying belt 36 and a third conveying belt 37, the soil to be repaired can be fully mixed with the soil repairing liquid by arranging a plurality of sections and a plurality of layers of conveying belts, the soil unloading plate 34 is adjustably arranged at the rear side of the vehicle body 1 to adjust the falling angle of the soil to be repaired when the soil flies out from the soil unloading opening 33, the upper end of the soil unloading plate 34 can be rotationally connected with the vehicle body 1 through a soil unloading rotating shaft 38, of course, the upper end of the soil unloading plate can also be rotationally connected with the vehicle body 1 through a supporting telescopic rod, and the lower end of the soil unloading plate 34 can be rotationally connected with the vehicle body 1 through a supporting telescopic rod 39.

The supporting telescopic rod can be a pneumatic telescopic rod or a hydraulic telescopic rod; the invention does not limit the concrete position and structure of the soil discharging port 33 and the soil discharging plate 34, as long as the efficient and accurate soil discharging can be realized.

Wherein, the excavating device may further include:

and a scraper 40 provided in the excavation cylinder 5.

Specifically, the scraper 40 may be connected to the shaft sleeve 47, or may be connected to other components, which is not limited in the present invention, as long as the scraper 40 can realize a relative motion with the excavating cylinder 5 to scrape the soil to be restored into the soil discharge opening 8.

According to the efficient soil remediation device, the soil scraping plate 40 is arranged, so that the soil to be remediated can be prevented from blocking the soil discharge port 8, the soil to be remediated can be discharged from the soil discharge port 8 more quickly, and the working efficiency is improved.

the drain port 41 is provided below the vehicle body 1.

The efficient soil remediation device can spray the soil remediation liquid which permeates into the soil to be remediated on the conveyor belt 4 or is redundant to the soil, and the soil is sprayed onto the soil below the vehicle body 1 through the liquid outlet 41, so that the remediation effect is further ensured, and meanwhile, the soil to be remediated, which falls from the conveyor belt 4, can be prevented from being accumulated in the vehicle body 1.

A method for repairing a high efficiency soil remediation device as described above, comprising the steps of:

covering the ground straw mixture on the soil to be repaired;

starting a rotary poking wheel 3, a conveying belt 4 and an excavating cylinder 5, enabling a flat inclined shovel 2 to be inserted into soil to be restored obliquely downwards, enabling the soil to be restored, which is shoveled by the flat inclined shovel 2, and the soil to be restored, which is rotationally excavated by the excavating cylinder 5, to enter the flat inclined shovel 2, and poking the soil to be restored, which enters the flat inclined shovel 2, onto the conveying belt 4 by the rotary poking wheel 3;

starting a spraying device, and spraying a preset soil remediation liquid into the soil to be remediated on the conveyor belt 4 by the spraying device;

the conveyer belt 4 discharges the soil to be restored after being mixed with the soil restoration liquid.

Wherein, the step of covering the straw crushing mixture on the soil to be repaired specifically comprises the following steps:

cleaning crop straws, and then drying at high temperature;

crushing crop straws in a closed space, wherein the grains of the crop straws are 0.5-1.5 cm during crushing so as to reduce the waste of floating dust and raw materials;

adding 0.8 per mill of composite microbial inoculum and 1.1 per mill of leaven into the crushed crop straws, uniformly mixing, and stacking and fermenting at normal temperature for 6-8 days;

mixing fermented crop straws, nitrogen phosphorus potassium particles and fly ash according to a weight ratio of 10: 1: 1, stirring and mixing in a stirrer to uniformly disperse the NPK particles and the fly ash in crop straws, and judging whether the NPK particles and the fly ash are uniformly mixed or not by observing the specific forms of the NPK particles and the fly ash during mixing;

the composite microbial inoculum comprises the following components in percentage by weight: 40% pseudomonas, 30% bacillus megaterium, 30% trichoderma; the content of the viable microorganism of the composite microbial inoculum is more than or equal to 3 hundred million/ml.

The pseudomonas has obvious effect on repairing soil polluted by organic matters such as polycyclic aromatic hydrocarbon and the like; the bacillus megaterium can be used for decomposing phosphorus and solid potassium fertilizer and has good effect of degrading organic phosphorus in soil; the trichoderma can generate various bioactive substances with antagonistic action on plant pathogenic fungi, bacteria and insects, and can improve the stress resistance of crops, promote the growth of plants and improve the yield of agricultural products; the composite microbial inoculum can be rapidly propagated into dominant flora in soil to form soil mainly containing beneficial bacteria and a benign micro-ecological environment of rhizosphere, so that crops have high yield and high quality, and the soil can be continuously and efficiently cultivated.

The leavening agent comprises the following components in parts by weight: 2.5 parts of humic acid, 0.1 part of zinc sulfate, 0.05 part of ferrous sulfate, 0.2 part of magnesium silicate, 0.04 part of zinc oxide, 1.5 parts of calcium oxide, 2 parts of attapulgite and 0.1 part of polyacrylamide.

The attapulgite has the characteristics of large specific surface area, high porosity and high activity and adsorption performance, can effectively reduce the proportion of soluble heavy metal in soil, achieves the effect of passivating the heavy metal in the soil and repairs the heavy metal pollution of the soil; after the polyacrylamide is applied to soil, heavy metal ions can be adsorbed, the toxic action of heavy metals on plants is reduced, the physical and chemical properties of the soil are improved, and meanwhile, the biological effectiveness of the heavy metals can be inhibited through the adsorption, chelation, complexation and other actions, so that the growth conditions of the restored plants are improved.

The method comprises the steps of regularly detecting the content of heavy metals in soil and the changes of nitrogen, phosphorus, potassium and organic matters in the soil in the repairing process, and accounting the crop yield, wherein the whole repairing period is 6 months, the soil fertilization balancing period is 1 month, the crop planting period is 6 months, and the dry land soil and the crop yield and quality change before and after repairing is as follows:

index (I)	Before repair (mg/kg)	After repair (mg/kg)
			PH	7.9～8.3	7.2
Copper (Cu)	108	91
			Lead (II)	246	1.1
Cadmium (Cd)	0.5	0.3
			Total nitrogen	752	826
All-phosphorus	513	605
			Total potassium	750	880
Organic matter	15000	17000

The efficient soil remediation device remediation method is non-toxic, does not generate secondary pollution, can be used for remediating various pollutants, is simple in process and low in cost, can be used for remediating polluted farmland soil efficiently, can realize resource utilization of agricultural wastes, and has great development potential in farmland soil improvement application.

The above illustrates the main innovative points of the present invention, and the non-mentioned parts are the conventional techniques in the art, and can be implemented by those skilled in the art without inventive efforts. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An efficient soil remediation device, comprising:

a vehicle body (1);

the conveying device comprises a flat inclined shovel (2), a rotary poking wheel (3) and a conveying belt (4), wherein the flat inclined shovel (2) is arranged on the front side of the vehicle body (1), the rotary poking wheel (3) is arranged in the flat inclined shovel (2), and the conveying belt (4) is arranged in the vehicle body (1);

the spraying device is arranged in the vehicle body (1) and matched with the conveying belt (4);

the excavating device comprises an excavating cylinder (5), a soil shoveling opening (6), a transmission device (7) and a soil discharging opening (8), wherein the excavating cylinder (5) is arranged on the front side of the vehicle body (1) and above the flat inclined shovel (2), the soil shoveling opening (6) is arranged on the excavating cylinder (5), the transmission device (7) is connected with the excavating cylinder (5), and the soil discharging opening (8) is arranged on the bottom surface of the excavating cylinder (5);

an operation device provided in the vehicle body (1);

a traveling device (9) provided below the vehicle body (1);

wherein the spinning wheel (3) comprises:

the wheel body (17) is connected with the flat inclined shovel (2);

the rotary dialing motor is arranged in the wheel body (17);

the wheel plate (18) is connected with the wheel body (17), and the wheel plate (18) is an L-shaped wheel plate;

the conveying device further comprises:

the soil-discharging angle adjusting device (19) comprises a rotary supporting shaft (20), an adjusting frame (21), a sliding hole (22), a locking shaft and locking wheels (23), wherein the rotary supporting shaft (20) is connected with the vehicle body (1), one end of the adjusting frame (21) is arranged on the rotary supporting shaft (20), the sliding hole (22) is formed in the adjusting frame (21), the other end of the adjusting frame (21) is arranged on the locking shaft, and the locking wheels (23) are arranged at two ends of the locking shaft;

the excavating cylinder (5) comprises a first excavating cylinder (26) and a second excavating cylinder (27), the opening directions of the shovel openings (6) on the first excavating cylinder (26) and the second excavating cylinder (27) are mirror-symmetrical, and the rotating direction of the first excavating cylinder (26) is opposite to the rotating direction of the second excavating cylinder (27).

2. The efficient soil remediation device of claim 1, wherein said flatwise shovel (2) comprises:

a shovel body (10) provided on the front side of the vehicle body (1);

the front inclined plate comprises a first front inclined plate (11) arranged on one side of the shovel body (10) and a second front inclined plate (12) arranged on the other side of the shovel body (10);

a rear inclined plate comprising a first rear inclined plate (13) and a second rear inclined plate (14) which are arranged at the rear side of the shovel body (10);

the first front inclined plate (11), the second front inclined plate (12), the first rear inclined plate (13) and the second rear inclined plate (14) are enclosed to form a soil inlet (15) and a soil outlet (16), and the width of the soil inlet (15) is greater than that of the soil outlet (16).

3. The efficient soil remediation device of claim 1, wherein said spray device comprises:

the liquid storage tank is arranged in the vehicle body (1);

the conveying pipe (24) is arranged in the vehicle body (1) and is connected with the liquid storage tank;

and the spraying head (25) is arranged on the conveying pipe (24) and matched with the conveying belt (4).

4. The efficient soil remediation device of claim 1, wherein said operation device comprises:

the transparent protective shell (28) is connected with the vehicle body (1) and encloses to form an operation space;

a seat (29) disposed within the operating space;

an operation table (30) provided in front of the seat (29);

an operation lever (31) provided on the operation table (30);

and the display screen (32) is arranged on the operating table (30).

5. The efficient soil remediation device of claim 1, wherein the running gear (9) is a crawler running gear.

6. The high efficiency soil remediation device of claim 1 further comprising:

a soil discharge opening (33) provided in the vehicle body (1);

and the soil unloading plate (34) is arranged on the vehicle body (1) and is matched with the soil unloading opening (33).

7. A method for repairing a high efficiency soil remediation device as claimed in any one of claims 1 to 6 including the steps of:

covering the ground straw mixture on the soil to be repaired;

starting a rotary stirring wheel (3), a conveying belt (4) and an excavating cylinder (5), inserting the flat inclined shovel (2) into the soil to be repaired in an inclined mode, enabling the soil to be repaired, which is shoveled by the flat inclined shovel (2), and the soil to be repaired, which is rotationally excavated by the excavating cylinder (5), to enter the flat inclined shovel (2), and stirring the soil to be repaired, which enters the flat inclined shovel (2), onto the conveying belt (4) by the rotary stirring wheel (3);

starting the spraying device, and spraying a preset soil remediation liquid into the soil to be remediated on the conveyor belt (4);

and the conveying belt (4) discharges the soil to be repaired after being mixed with the soil repairing liquid.