CN111069259A - Surface layer contaminated soil in-situ remediation equipment - Google Patents

Abstract

The invention discloses surface layer contaminated soil in-situ remediation equipment which comprises a walking vehicle body, a soil remediation device and a soil returning device, wherein the soil remediation device is used for digging up surface layer contaminated soil for remediation and discharging the remediated soil, the soil returning device is used for returning the soil discharged by the soil remediation device to a site, the soil remediation device and the soil returning device are both arranged on the walking vehicle body, the soil returning device comprises a discharge port, a soil conveying mechanism and a soil dispersing mechanism, the soil dispersing mechanism is arranged at an outlet of the soil remediation device, one end of the soil conveying mechanism is connected with the soil dispersing mechanism, and the other end of the soil conveying mechanism is connected with the discharge port. The surface contaminated soil in-situ remediation equipment disclosed by the invention can be used for continuously and automatically remedying the surface contaminated soil, and can be used for leveling and uniformly returning the soil to the original position, so that the flatness of the remediated site is ensured.

Description

Surface layer contaminated soil in-situ remediation equipment

Technical Field

The invention relates to the technical field of soil remediation, in particular to surface layer contaminated soil in-situ remediation equipment.

Background

China has serious soil pollution, people gradually realize the severe degree of the pollution in recent years, people carry out a series of researches to solve the problem of the soil pollution, and the soil remediation technology is developed vigorously under the common efforts of the scientific community and the industrial community. At present, the mainstream soil remediation technologies mainly comprise a solidification/stabilization technology, a leaching technology, a thermal desorption technology, an advanced oxidation technology and the like. The curing/stabilizing technology, the advanced oxidation technology and the like all need to add medicaments, the medicaments and the polluted soil are uniformly stirred, and the influence of the soil on the surrounding environment is reduced by changing the activity state of pollutants in the soil or reducing the content of the pollutants, so that the aim of soil remediation is fulfilled.

Currently, the curing/stabilizing technology, advanced oxidation technology, etc. can be divided into two major categories, namely in-situ repair technology and ex-situ repair technology. The ectopic remediation technology is characterized in that polluted soil is excavated and transported to a remediation workshop, and the remedied soil is transported to a soil digestion place or an original place after the remediation workshop is subjected to the working procedures of crushing, screening, mixing with a medicament, maintaining and the like. The ex-situ remediation technology is complex in process, needs a large amount of manpower and mechanical equipment to be matched with the ex-situ remediation technology, and is difficult to realize full automation of contaminated soil remediation.

At present, the in-situ remediation technology mainly utilizes civil engineering equipment and technologies (such as stirring piles and the like) to inject a medicament into soil, so as to realize the mixing of the soil and the medicament. However, this method is expensive, cannot be operated continuously and automatically, and the uniformity of the mixing of the soil and the chemical is difficult to ensure.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provides the surface layer contaminated soil in-situ remediation equipment capable of carrying out continuous and automatic in-situ remediation operation on the surface layer contaminated soil.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a top layer pollutes soil normal position repair equipment, includes the walking automobile body, is used for polluting soil on the top layer and digs up the soil prosthetic devices that restores and will restore the soil exhaust soil prosthetic devices and be used for with the device is returned to the soil in place to soil prosthetic devices exhaust soil, soil prosthetic devices and soil are returned the device and are all located on the walking automobile body, soil is returned the device and is included discharge gate, soil conveying mechanism and soil dispersion mechanism, soil dispersion mechanism locates soil prosthetic devices ' exit, soil conveying mechanism's one end links to each other with soil dispersion mechanism, and soil conveying mechanism's the other end links to each other with the discharge gate.

Foretell top layer pollutes soil normal position repair equipment, it is preferred, soil dispersion mechanism includes end baffle and the vibration bottom plate that is in the vibration state, the both ends of vibration bottom plate are located to the end baffle, the both sides of vibration bottom plate with soil conveying mechanism links to each other, and the setting height of vibration bottom plate is greater than soil conveying mechanism, and the direction downward sloping setting of vibration bottom plate towards soil conveying mechanism.

Foretell surface layer pollutes soil normal position repair equipment, it is preferred, the discharge gate includes feed end and discharge end, the width of feed end with the width of soil conveying mechanism output equals, the width of discharge end with soil prosthetic devices's width equals, the both sides of discharge gate still are equipped with the side shield.

Foretell surface layer pollutes soil normal position repair equipment, it is preferred, soil conveying mechanism parallel is equipped with two, and two soil conveying mechanism symmetries are located soil prosthetic devices's both sides, the shape that high, both sides are low in the middle of the vibrating plate is, and the axis m symmetry setting about soil prosthetic devices.

The in-situ remediation equipment for the surface contaminated soil is preferred, the soil remediation device comprises a chemical feeding pipe, a turning device and a crushing and screening device, the turning device is used for digging and throwing the soil, the crushing and screening device is used for receiving the soil thrown by the turning device, crushing and screening the soil and uniformly mixing the soil with the chemical, and then discharging the soil, the crushing and screening device is arranged at a falling point position where the soil is thrown by the turning device, and an output end of the chemical feeding pipe is connected with the crushing and screening device.

Foretell surface layer pollutes soil normal position repair equipment, it is preferred, broken screening plant with be equipped with first link arm between the walking automobile body, the one end and the broken screening plant of first link arm are connected, and the other end of first link arm is articulated through first hinge and walking automobile body, be equipped with on the first hinge and be used for restricting first link arm pivoted locking mechanism.

Preferably, the turning device comprises a power mechanism, a transmission wheel and a plurality of soil turning hoppers, the power mechanism is connected with the transmission wheel, the plurality of soil turning hoppers are uniformly arranged on the circular wheel surface of the transmission wheel, and the mounting directions of the soil turning hoppers are the same. The number of the soil turning buckets is more than 3, and generally is not more than 10.

Preferably, the rotation direction of the driving wheel is the same as the rotation direction of the running mechanism which drives the running vehicle body to run. Specifically, running gear is the part that drives the walking automobile body walking, can be track or wheel, and when running gear along clockwise rotation, the drive wheel also along clockwise rotation rather than the same, when drive wheel and running gear's direction of rotation is the same, the resistance that the throwing device excavated is little, and the excavation of surface layer contaminated soil is more abundant and even, makes the prosthetic effect of soil better.

The above surface-contaminated soil in-situ remediation equipment is preferred, the soil turning and throwing bucket comprises a bucket body, bucket teeth and a connecting piece, wherein the connecting piece is used for being connected with the transmission wheel, the bucket body is in an inwards concave arc shape, the bucket teeth are arranged at one end of the bucket body, and the connecting piece is arranged at the other end of the bucket body.

In the in-situ remediation equipment for the surface contaminated soil, preferably, the connecting piece is a turning bucket hinge, the soil turning bucket is hinged to the driving wheel through the turning bucket hinge, and a locking mechanism for limiting the rotation of the soil turning bucket is arranged on the turning bucket hinge.

According to the surface contaminated soil in-situ remediation equipment, preferably, the maximum depth of the bucket body is h, the opening length of the bucket body is l, and the ratio of the maximum depth of the bucket body to the opening length is h: l is 1: 3-1: 5.

foretell surface layer pollutes soil normal position repair equipment, it is preferred, the walking automobile body includes medicament feed carriage, walking track and is used for providing power and the power drive mechanism of controlgear work, medicament feed carriage and power drive mechanism locate on the walking track, the medicament is filled in the medicament feed carriage, the input and the medicament feed carriage intercommunication of dosing pipe, power drive mechanism links to each other with the walking track, and the walking track is located the both sides of device are returned to soil.

Compared with the prior art, the invention has the advantages that:

according to the in-situ remediation equipment for the surface layer contaminated soil, the soil remediation device is used for digging up the surface layer contaminated soil and remedying the surface layer contaminated soil in the walking process of the walking vehicle body, then the remediated soil is discharged and falls onto the soil dispersion mechanism, the soil is conveyed to the soil conveying mechanism through the soil dispersion mechanism and finally discharged from the discharge port, and the automatic continuous in-situ remediation of the surface layer contaminated soil is realized. This equipment loops through soil dispersion mechanism with the soil after restoreing, soil conveying mechanism and discharge gate discharge, can be under the condition of walking car body past continuous operation, return the normal position to the soil after restoreing, can realize the excavation of soil, restore, the full-automatic process of normal position backfill, can effectively avoid soil prosthetic devices to excavate to prosthetic soil, thereby equipment work efficiency has been improved, and can guarantee that the soil that will excavate evenly returns to the normal position, place hole uneven unevenness after having avoided handling, the roughness in place after having guaranteed to restore.

Drawings

Fig. 1 is a schematic front view of the surface contaminated soil in-situ remediation device of the embodiment.

FIG. 2 is a sectional view of the surface contaminated soil in-situ remediation device of an embodiment.

Fig. 3 is a sectional view taken along a-a in fig. 1.

Fig. 4 is a schematic perspective view of the soil dispersing mechanism in the embodiment.

Fig. 5 is a schematic structural diagram of the turning device in the embodiment.

Fig. 6 is a schematic structural diagram of the soil turning bucket in the embodiment.

Figure 7 is a schematic top view of a crushing and screening device in an embodiment.

Fig. 8 is a sectional view taken in the direction B-B in fig. 7.

Illustration of the drawings:

1. a traveling vehicle body; 11. a medicament feeding compartment; 12. a walking crawler belt; 13. a powered traction mechanism; 2. a turning device; 22. a driving wheel; 23. a soil turning bucket; 231. a bucket body; 232. a bucket tooth; 233. a turning bucket hinge; 3. a crushing and screening device; 31. a first connecting arm; 311. a first hinge; 32. a box body; 33. a soil inlet; 34. a soil outlet; 35. a connecting beam; 36. crushing and screening roller shafts; 4. a medicine feeding pipe; 5. a soil return device; 51. a discharge port; 511. a feeding end; 512. a discharge end; 513. a side dam; 52. a soil conveying mechanism; 53. a soil dispersing mechanism; 531. an end baffle; 532. vibrating the base plate; 6. a mechanically integrated housing; m, the axis of the soil remediation device.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

As shown in fig. 1 to 3, the surface layer contaminated soil in-situ remediation device of the present embodiment includes a walking vehicle body 1, a soil remediation device for digging up the surface layer contaminated soil to perform remediation and returning the soil that is discharged from the remediated soil to a site, and a soil return device 5 for returning the soil that is discharged from the soil remediation device to the site, wherein the soil remediation device and the soil return device 5 are both disposed on the walking vehicle body 1, the soil return device 5 includes a discharge port 51, a soil conveying mechanism 52 and a soil dispersing mechanism 53, the soil dispersing mechanism 53 is disposed at an outlet of the soil remediation device, one end of the soil conveying mechanism 52 is connected to the soil dispersing mechanism 53, and the other end of the soil conveying mechanism 52 is connected to the discharge port 51. Specifically, the soil returning device 5 is connected with the mechanical integrated cover 6 at the bottom of the walking vehicle body 1 through a connecting rod, and the soil conveying mechanism 52 is a belt conveyor.

As shown in fig. 4, in the present embodiment, the soil dispersing mechanism 53 includes an end baffle 531 and a vibration base plate 532 in a vibration state, the end baffle 531 is disposed at both ends of the vibration base plate 532, both sides of the vibration base plate 532 are connected to the soil conveying mechanism 52, the height of the vibration base plate 532 is greater than that of the soil conveying mechanism 52, and the vibration base plate 532 is disposed to be inclined downward toward the soil conveying mechanism 52. Specifically, the vibrating bottom plate 532 is an inclined plate inclined towards the soil conveying mechanism 52, the power traction mechanism 13 provides power to enable the vibrating bottom plate 532 to be in a vibrating state, so that the soil falling into the soil dispersing mechanism 53 slides into the soil conveying mechanism 52 along the inclined vibrating bottom plate 532 under the vibrating action, end baffles 531 are arranged at two ends to prevent the repaired soil from sliding down from the two ends, and meanwhile, the power traction mechanism 13 also provides power for the work of the soil conveying mechanism 52.

In this embodiment, the discharging hole 51 includes a feeding end 511 and a discharging end 512, the width of the feeding end 511 is equal to the width of the output end of the soil conveying mechanism 52, the width of the discharging end 512 is equal to the width of the soil remediation device, and side baffles 513 are further disposed on two sides of the discharging hole 51. The discharge port 51 is arranged at the tail part of the soil conveying mechanism 52, the setting height of the discharge port 51 is smaller than that of the output end of the soil conveying mechanism 52, the width of the feeding end 511 is wide, the width of the discharging end 512 is narrow, the axis of the discharge port 51 is coincided with the axis m of the soil remediation device, and the side baffles 513 are symmetrically arranged at two sides of the axis of the discharge port 51. Further, the discharging hole 51 is provided to be inclined downward from the feeding end 511 toward the discharging end 512 so that the soil is smoothly discharged. The width of the feed end 511 is equal to that of the output end of the soil conveying mechanism 52 so as to completely recover the repaired soil, and the width of the discharge end 512 is equal to that of the soil repairing device so as to accurately return and backfill the soil to the excavated area, so that the repaired soil is prevented from scattering around, and efficient soil in-situ repair is realized.

In this embodiment, two soil conveying mechanisms 52 are arranged in parallel, the two soil conveying mechanisms 52 are symmetrically arranged on two sides of the soil remediation device, and the vibration bottom plate 532 is in a shape with a high middle part and two low sides and is symmetrically arranged about the axis m of the soil remediation device. Specifically, the soil remediation device and the soil returning device 5 are both arranged at the bottom of the medicament feeding carriage 11, the two soil conveying mechanisms 52 are arranged in parallel at intervals and symmetrically about the axis m of the soil remediation device, and the turning device 2 and the crushing and screening device 3 are arranged in the interval between the two soil conveying mechanisms 52. The treated soil is dispersed and transported from two sides simultaneously, so that the soil is prevented from being accumulated and difficult to discharge.

In this embodiment, the soil remediation device includes the chemical feeding pipe 4, the turning device 2 for digging up and throwing out the soil, and the crushing and screening device 3 for receiving the soil thrown out by the turning device 2, crushing and screening the soil, mixing the soil with the chemical uniformly and then discharging the mixture, wherein the crushing and screening device 3 is arranged at the position of the drop point of the soil thrown out by the turning device 2, and the output end of the chemical feeding pipe 4 is connected with the crushing and screening device 3. Specifically, the width of the turning device 2 and the crushing and screening device 3 is equal, the turning device 2 can dig up surface soil and turn and throw the soil towards the crushing and screening device 3 (towards the right), the inlet of the crushing and screening device 3 is over against the dropping point of the soil thrown out by the turning device 2 so as to accurately catch and treat the polluted soil, and the chemical feeding pipe 4 can send the chemical to the crushing and screening device 3 so that the chemical is fully mixed with the soil in the crushing and screening process. The surface layer pollutes soil normal position repair equipment of this embodiment is at the walking in-process, the continuous restoration and the discharge of soil can be accomplished in real time in the cooperation of turning over device 2, crushing and screening device 3 and chemical feeding pipe 4, turning over device 2 directly plays the throwing out with top soil, need not pause, the transportation process, the transit time of soil has been saved, high working efficiency, the repair effect is good, crushing and screening device 3 can break the soil screening and make it and medicament intensive mixing, and can in time return to the original place to the soil after handling, the continuous of surface layer pollution soil, automatic normal position restoration operation has been realized.

In this embodiment, the connecting shaft of the turning device 2 can be adjusted according to actual requirements, so that the soil depth of the turning device 2 and the distance between the turning device and the crushing and screening device 3 can be adjusted during operation.

In this embodiment, a first connecting arm 31 is arranged between the crushing and screening device 3 and the traveling vehicle body 1, one end of the first connecting arm 31 is connected with the crushing and screening device 3, the other end of the first connecting arm 31 is hinged to the traveling vehicle body 1 through a first hinge 311, and a locking mechanism for limiting the rotation of the first connecting arm 31 is arranged on the first hinge 311. Specifically, the first hinge 311 with adjustable angle is the prior art, and the hinge capable of rotating to adjust the angle and locking in a certain position according to the requirement can be applied to the present embodiment. The position and the angle of the crushing and screening device 3 can be controlled by adjusting the first connecting arm 31 in a rotating mode, the crushing and screening device can be matched with the turning and throwing device 2 to accurately catch the thrown soil, and the locking mechanism plays a role in locking, so that the crushing and screening device 3 is fixed at the position of a falling point of the turned and thrown soil.

As shown in fig. 5 and fig. 6, in the present embodiment, the turning device 2 includes a power mechanism, a transmission wheel 22 and a plurality of soil turning hoppers 23, the power mechanism is connected to the transmission wheel 22, the plurality of soil turning hoppers 23 are uniformly arranged on the circular wheel surface of the transmission wheel 22, and the installation directions of the soil turning hoppers 23 are the same. Specifically, a power mechanism of the turning and throwing device 2 is arranged in the power traction mechanism 13, 3 soil turning and throwing buckets 23 are uniformly arranged on a circular wheel surface of a driving wheel 22, included angles among the three soil turning and throwing buckets 23 are 120 degrees, the installation directions of the 3 soil turning and throwing buckets 23 are the same, and when the power mechanism drives the driving wheel 22 to rotate, the soil turning and throwing buckets 23 on the driving wheel 22 rotate clockwise along with the rotation, and soil polluted on the surface layer is dug up and thrown out rightwards.

In this embodiment, the rotation direction of the transmission wheel 22 is the same as the rotation direction of the running mechanism driving the running vehicle body 1 to run. In the embodiment, the walking crawler 12 is arranged, specifically, the triangular crawler wheel drives the walking vehicle body 1 to walk, the walking vehicle body 1 walks rightwards during normal work, the triangular crawler wheel rotates clockwise, meanwhile, the driving wheel 22 also rotates clockwise to dig up surface-layer contaminated soil and throw the surface-layer contaminated soil rightwards, the two rotating directions are the same, so that the force generated in the moving process of the walking vehicle body 1 is fully utilized when the soil turning and throwing bucket 23 digs the soil, the soil digging is more sufficient and uniform, and the problems that the resistance is large and the digging effect is poor when the driving wheel 22 and the triangular crawler wheel rotate in opposite directions are avoided.

In this embodiment, the soil turning and throwing bucket 23 includes a bucket body 231, a bucket tooth 232 and a connecting member for connecting with the transmission wheel 22, the bucket body 231 is in an inwardly concave arc shape, the bucket tooth 232 is disposed at one end of the bucket body 231, and the connecting member is disposed at the other end of the bucket body 231. Specifically, the bucket teeth 232 are integrally thin so as to cut soil, the soil cut by the bucket teeth 232 is stored in the soil turning bucket 23 in the shape of an inward concave circular arc, and after the soil is rotated to a certain angle, the soil in the soil turning bucket 23 is thrown into the crushing and screening device 3 under the action of centrifugal force for treatment.

In this embodiment, the connecting member is a turning bucket hinge 233, the soil turning bucket 23 is hinged to the driving wheel 22 through the turning bucket hinge 233, and the turning bucket hinge 233 is provided with a locking mechanism for limiting the rotation of the soil turning bucket 23. Specifically, the angle-adjustable turning bucket hinge 233 is a conventional hinge, and a hinge that can be rotated to adjust an angle and locked at a certain position as needed can be applied to the present embodiment. The connection angle of the soil turning bucket 23 can be adjusted through the hinge of the turning bucket 233 so as to control the movement track and the falling point of the soil turning bucket, and the soil turning bucket is locked by a locking mechanism after the proper angle is adjusted so as to normally work.

In this embodiment, the maximum depth of the bucket 231 is h, the opening length of the bucket 231 is l, and the ratio h of the maximum depth of the bucket 231 to the opening length: l is 1: 4. the height-span ratio (h: l) of the soil turning bucket 23 can be properly adjusted according to actual requirements. The soil excavation amount of the soil turning bucket 23 is moderate by adjusting the high span ratio, and the soil in the soil turning bucket 23 is completely turned into the crushing and screening device 3 by matching with the centrifugal force generated by rotation.

As shown in fig. 7 and 8, in the present embodiment, the crushing and screening device 3 includes a box 32, a soil inlet 33 and a soil outlet 34 are provided on the box 32, a connecting beam 35 crossing the soil inlet 33 is provided at the soil inlet 33, a crushing and screening roller 36 is provided in the box 32, and a plurality of crushing and screening rods are provided on the crushing and screening roller 36. Specifically, tie-beam 35 is located the central axis position of soil inlet 33, be equipped with the tie point of being connected with first tie-arm 31 on the tie-beam 35, first tie-arm 31 is connected with crushing and screening device 3 through this tie point, crushing and screening roller 36 is equipped with 3 altogether, equidistant setting on the same horizontal plane in box 32, a plurality of crushing and screening poles evenly lay on crushing and screening roller 36, and rotate along with the rotation of crushing and screening roller 36, the mutual dislocation set of crushing and screening pole on the adjacent crushing and screening roller 36. Soil thrown out by the turning device 2 enters the crushing and screening device 3 from the soil inlet 33, soil blocks are crushed, screened and refined under the action of the crushing and screening rods on the crushing and screening roller 36, and are fully and uniformly mixed with the medicament discharged from the chemical feeding pipe 4 in the period, meanwhile, in order to avoid splashing everywhere when the crushing and screening rods are directly discharged after being crushed and screened, the soil returning device 5 is arranged at the bottom of the soil outlet 34 to return the repaired soil to the original position, and the condition that the repair surface is uneven and the repair efficiency is influenced due to the fact that part of soil is splashed to other positions when the soil is directly discharged from the soil outlet 34 is avoided.

In this embodiment, the walking vehicle body 1 includes a drug feeding compartment 11, a walking track 12 and a power traction mechanism 13 for providing power and controlling the operation of the device, the drug feeding compartment 11 and the power traction mechanism 13 are disposed on the walking track 12, the drug feeding compartment 11 is filled with a drug, the input end of the drug feeding tube 4 is communicated with the drug feeding compartment 11, the power traction mechanism 13 is connected with the walking track 12, and the walking track 12 is disposed on two sides of the soil returning device 5. Specifically, the walking crawler 12 is a triangular crawler wheel, the four triangular crawler wheels are respectively arranged at four corners of the bottom of the walking vehicle body 1 to drive the whole device to walk in a field needing to be repaired, the bottom of the medicament feeding carriage 11 is provided with a mechanical integrated cover 6, the turning and throwing device 2 and the crushing and screening device 3 are arranged in the mechanical integrated cover 6 and are located at the middle of the bottom of the medicament feeding carriage 11 in the width direction, and the soil conveying mechanism 52 and the walking crawler 12 are sequentially arranged from the middle to two sides. The power traction mechanism 13 of the present embodiment is a power traction vehicle head, which is a power integration area of the equipment. And a quantitative dosing device is arranged in the medicament feeding carriage 11, and the quantitative dosing device quantitatively feeds the medicament in the medicament feeding carriage 11 into the crushing and screening device 3 through the medicament feeding pipe 4 so as to be fully mixed with the soil.

The method for automatically repairing the surface contaminated soil in situ by adopting the surface contaminated soil in situ repair equipment comprises the following steps:

s1: in-situ remediation equipment for the surface contaminated soil is in place, and the turning and throwing device 2, the crushing and screening device 3 and the soil turning and throwing hopper 23 are adjusted to appropriate positions and angles;

s2: starting the surface contaminated soil in-situ remediation equipment, enabling the equipment to start to walk forwards in the site to be remedied, and enabling the turning and throwing device 2 to start to rotate clockwise and excavate the surface soil;

s3: the equipment continues to advance, the turning and throwing device 2 continuously excavates the surface soil, and the excavated soil is thrown into the crushing and screening device 3 through centrifugal force;

s4: the agent feeding carriage 11 quantitatively feeds the agent into the crushing and screening device 3 through the agent feeding pipe 4, so that the agent and the soil are fully mixed in the crushing and screening processes;

s5: the soil mixed and stirred uniformly by the crushing and screening device 3 falls into the soil dispersing mechanism 53 in a vibration state;

s6: the soil dispersing mechanism 53 sends the soil which is uniformly mixed and stirred to the soil conveying mechanism 52 in a vibration mode;

s7: the soil conveying mechanism 52 conveys the soil which is uniformly mixed and stirred to the discharge hole 51;

s8: the soil mixed and stirred uniformly is discharged from a discharge end 512 of the discharge hole 51, falls into the field thrown by the throwing device 2 and fills the gap after digging;

s9: and continuously operating the surface layer contaminated soil in-situ remediation equipment according to the steps S2-S8 to realize automatic continuous in-situ remediation of the surface layer contaminated soil.

When the turning device 2 rotates, the in-situ remediation equipment for the surface contaminated soil of the embodiment continuously excavates the surface contaminated soil into the soil turning hopper 23, and the polluted soil in the soil turning hopper 23 is thrown into the crushing and screening device 3 by utilizing the centrifugal force generated in the rotation process of the turning device 2, the medicament is quantitatively thrown into the crushing and screening device 3 by utilizing the medicament feeding carriage 11, the quantitative medicament feeding device, the medicament feeding pipe 4 and other equipment, so that the polluted soil and the medicament are fully mixed, then falls into a soil dispersing mechanism 53, and is discharged from the tail part of the device through a soil conveying mechanism 52 and a discharge hole 51 in sequence, thereby accurately and completely cover the place excavated by the turning and throwing device 2, realize the automatic continuous in-situ remediation of the surface layer contaminated soil, and effectively overcome the defects that the traditional soil remediation equipment cannot continuously and automatically operate, and the uniformity of the soil and the medicament mixture is difficult to ensure, and the like.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims (10)

1. The utility model provides a surface contamination soil normal position repair equipment which characterized in that: including walking automobile body (1), be used for digging up the top layer contaminated soil and repair and will restore the soil exhaust soil prosthetic devices and be used for with soil prosthetic devices exhaust soil returns to the soil in place and returns device (5), soil prosthetic devices and soil return device (5) and all locate walking on the automobile body (1), soil returns device (5) including discharge gate (51), soil conveying mechanism (52) and soil dispersion mechanism (53), soil dispersion mechanism (53) locate soil prosthetic devices's exit, the one end of soil conveying mechanism (52) links to each other with soil dispersion mechanism (53), and the other end of soil conveying mechanism (52) links to each other with discharge gate (51).

2. The surface contaminated soil in-situ remediation device of claim 1, wherein: soil dispersion mechanism (53) are including end baffle (531) and vibration bottom plate (532) that are in the vibration state, the both ends of vibration bottom plate (532) are located to end baffle (531), the both sides of vibration bottom plate (532) with soil conveying mechanism (52) link to each other, and the setting height of vibration bottom plate (532) is greater than soil conveying mechanism (52), and vibration bottom plate (532) towards the direction downward sloping setting of soil conveying mechanism (52).

3. The surface contaminated soil in-situ remediation device of claim 1, wherein: discharge gate (51) include feed end (511) and discharge end (512), the width of feed end (511) with the width of soil conveying mechanism (52) output equals, the width of discharge end (512) with soil prosthetic devices's width equals, the both sides of discharge gate (51) still are equipped with side shield (513).

4. The surface contaminated soil in-situ remediation device of claim 2, wherein: soil conveying mechanism (52) parallel is equipped with two, and two soil conveying mechanism (52) symmetries are located soil prosthetic devices's both sides, vibration bottom plate (532) are the shape that middle height, both sides are low, and just set up about soil prosthetic devices's axis m symmetry.

5. The surface contaminated soil in-situ remediation device of any one of claims 1 to 4, wherein: soil prosthetic devices including adding pencil (4), be used for digging soil and throw turn over throwing device (2) and be used for receiving turn over the soil that throwing device (2) was thrown and with soil crushing screening and with agent misce bene discharge after broken screening plant (3), broken screening plant (3) are located turn over the dropping point position that throwing device (2) thrown out soil, the output that adds pencil (4) links to each other with broken screening plant (3).

6. The surface contaminated soil in-situ remediation device of claim 5, wherein: crushing and screening device (3) with be equipped with first connecting arm (31) between walking automobile body (1), the one end and the crushing and screening device (3) of first connecting arm (31) are connected, and the other end of first connecting arm (31) is articulated through first hinge (311) and walking automobile body (1), be equipped with on first hinge (311) and be used for restricting first connecting arm (31) pivoted locking mechanism.

7. The surface contaminated soil in-situ remediation device of claim 5, wherein: the turning and throwing device (2) comprises a power mechanism, a transmission wheel (22) and a plurality of soil turning and throwing buckets (23), wherein the power mechanism is connected with the transmission wheel (22), the soil turning and throwing buckets (23) are uniformly arranged on the circular wheel surface of the transmission wheel (22), and the installation directions of the soil turning and throwing buckets (23) are the same.

8. The surface contaminated soil in-situ remediation device of claim 7, wherein: the rotating direction of the driving wheel (22) is the same as the rotating direction of a traveling mechanism which drives the traveling vehicle body (1) to travel.

9. The surface contaminated soil in-situ remediation device of claim 7, wherein: soil turns over throwing fill (23) including bucket body (231), bucket tooth (232) and be used for with the connecting piece that drive wheel (22) are connected, bucket body (231) are the convex arc of indent, bucket tooth (232) are located the one end of bucket body (231), the other end of bucket body (231) is located to the connecting piece.

10. The surface contaminated soil in-situ remediation device of claim 5, wherein: walking automobile body (1) includes medicament feed carriage (11), walking track (12) and is used for providing power and the power drive mechanism (13) of controlgear work, medicament feed carriage (11) and power drive mechanism (13) are located on walking track (12), the medicament is equipped with in medicament feed carriage (11), the input and the medicament feed carriage (11) intercommunication of dosing pipe (4), power drive mechanism (13) link to each other with walking track (12), and walking track (12) are located the both sides of device (5) are returned to soil.

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