CN110665953A - Heavy metal contaminated soil is with normal position mixed prosthetic devices that digs - Google Patents
Heavy metal contaminated soil is with normal position mixed prosthetic devices that digs Download PDFInfo
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- CN110665953A CN110665953A CN201810727054.6A CN201810727054A CN110665953A CN 110665953 A CN110665953 A CN 110665953A CN 201810727054 A CN201810727054 A CN 201810727054A CN 110665953 A CN110665953 A CN 110665953A
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- soil
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- shell
- vehicle body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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Abstract
The invention discloses an in-situ soil-turning mixed restoration device for heavy metal contaminated soil, which comprises: the vehicle body is provided with a shell; the vegetation collecting and crushing assembly is arranged at the front end close to the shell and comprises a collecting part and a crushing part which are mutually connected, and an inclined material conveying channel is formed from the collecting part to the crushing part; the soil taking assembly is obliquely arranged close to the bottom of the shell; the soil taking assembly comprises a soil taking body and a spiral conveying body which are connected end to end; the mixing barrel is arranged in the shell, and a discharge port I at the upper end of the crushing part, a soil outlet II at the upper end of the spiral conveying body and a discharge port I of the feeding barrel extend to an opening of the mixing barrel; the earthing bin runs through the rear end of the shell and is communicated to the bottom of the mixing barrel. The soil repairing agent and the ground vegetation debris can be doped after soil is taken on site, and the mixed soil is uniformly covered on the ground surface after soil is taken, so that the uniformity of the soil repairing agent in the soil is improved, and the mixed repairing efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of soil improvement machinery, in particular to an in-situ soil-turning mixed restoration device for heavy metal contaminated soil.
Background
Heavy metal pollution is one of the most extensive and most harmful environmental problems in current soil pollution. The soil heavy metal pollution source mainly comprises the discharge of three wastes generated in the industries of chemical industry, electroplating, electronics, leather making and the like, the mining and smelting of mines, the application of chemical fertilizers and pesticides, the discharge of municipal domestic garbage, sewage irrigation, sludge agriculture and the like. Heavy metals cannot be degraded by microorganisms, are long-term and potential pollutants of the environment, are easy to influence the ecological structure and functional stability of soil, and can cause certain harm to plants and human health. At present, the treatment of heavy metal pollution mostly adopts the steps of spraying a chemical repairing agent on the surface of a land to be repaired or removing heavy metal polluted soil on the surface layer, the effect is quick, but secondary pollution is easily caused; moreover, when the chemical repairing agent is used for repairing heavy metal soil, as no special machine is used for on-site soil taking and mixing and then earthing, the chemical repairing agent can only be scattered on the ground surface and then turned over, so that on one hand, the chemical repairing agent cannot be uniformly mixed into the soil layer, and the repairing effect is influenced; on the other hand, the process is relatively complicated, and the cost of manpower and material resources is increased invisibly.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide an in-situ soil-turning mixed repairing device for environment-friendly heavy metal contaminated soil, which has the function of uniformly doping a soil repairing agent and ground vegetation debris after in-situ soil taking, and simultaneously, the mixed soil is synchronously and uniformly covered on the ground surface after soil taking, so that the mixing uniformity of the soil repairing agent in the soil is improved, the soil repairing is facilitated, the working efficiency of mixed repairing is greatly improved, and the cost of manpower and material resources is reduced.
To achieve these objects and other advantages in accordance with the present invention, there is provided an in situ soil-turning hybrid restoration device for heavy metal contaminated soil, comprising:
the tractor comprises a tractor body, a traction vehicle;
the vegetation collects rubbing crusher spare, its setting is being close to the first lateral wall department of the front end of casing, just the vegetation collects rubbing crusher spare and collects portion and the crushing portion of collecting including linking up the setting each other, the articulated setting of rear end of collecting the portion is in the outside of first lateral wall, collect the portion and collect the body including the first body and the second of collecting of arranging from top to bottom, the front end that the body was collected to the second is fan-shaped fork structure who expandes on the horizontal direction, collect the portion and use the pin joint as the setting of reciprocating motion from top to bottom in certain angle as the centre of a circle through first telescopic link, so that the front end portion that the body was collected to the second inserts the automobile body advancing direction in the soil layer in automobile body the place ahead, the first body that collects the nadir be higher than the upper surface on the soil layer in automobile body advancing direction the place ahead: the first collecting body is transversely arranged on the second collecting body, the front ends of the first collecting body and the second collecting body are arranged in parallel and nearly, and the vertical distance between the first collecting body and the second collecting body is not more than 20 cm; the first collecting body harvester roller comprises a plurality of harvester rollers which are mutually parallel and rotate in the same direction, the harvester rollers are synchronously and rotatably arranged from the tail end of the second collecting body to the extending direction of the front end of the second collecting body, and the lengths of the harvester rollers are gradually reduced along with the gradual reduction of the width of the first collecting body; the crushing part is obliquely arranged in the shell and is a spiral crusher, and the joint of the crushing part and the collecting part is arranged by penetrating through the first side wall so as to form an oblique material conveying channel from the collecting part to the crushing part; the baffle is arranged above the collecting part, one end of the baffle is fixed on the first side wall, the other end of the baffle extends above the second collecting body, and the vertical distance between the lower surface of the baffle and the upper surface of the second collecting body is at least 20 cm; the length of the baffle is adapted to that of the first collecting body in the direction perpendicular to the travelling direction of the vehicle body;
the soil taking assembly is obliquely arranged close to the bottom of the shell, and is positioned at the rear side of the vegetation crushing assembly in the advancing direction of the vehicle body; the soil taking assembly comprises a soil taking body and a spiral conveying body which are connected end to end, the soil taking body is an accommodating groove with a triangular bottom surface and an upward opening, the relatively smaller end of the soil taking body connected with the spiral conveying body is hinged to the lower surface of the bottom of the shell through a second telescopic rod, the relatively larger end of the soil taking body extends towards the advancing direction of the vehicle body, and the soil taking body can reciprocate up and down within a certain angle by taking a hinge point as a circle center, so that the front end part of the accommodating groove is inserted into a soil layer at the bottom of the vehicle body in the advancing direction of the vehicle body; the spiral conveying body is obliquely arranged in the shell, and the lower end of the spiral conveying body penetrates through the bottom of the shell and extends to the relatively smaller end of the soil taking body so as to form a through soil conveying channel from the soil taking body into the spiral conveying body;
the mixing barrel is a barrel body with an upward opening, the mixing barrel is arranged in the shell, and a discharge port I at the upper end of the crushing part and a soil outlet II at the upper end of the spiral conveying body extend into the opening of the mixing barrel; a stirrer disposed inside the mixing tub;
the feeding barrel is internally provided with a heavy metal curing agent, a discharge port III of the feeding barrel extends to an opening of the mixing barrel, and the heavy metal curing agent is quantitatively added into the mixing barrel;
the soil covering bin is of a flattened funnel structure, a small opening of the flattened funnel structure penetrates through the side wall of the rear end of the shell and is communicated to the bottom of the mixing barrel, a large opening of the flattened funnel structure faces the soil layer behind the vehicle body, and the long diameter of the large opening of the flattened funnel structure is parallel to the ground; and
the driving part is used for respectively driving the vehicle body, the vegetation harvesting and smashing assembly, the soil taking assembly, the stirrer and the feeding barrel.
Preferably, the depth of the front end portion of the second collecting body inserted into the soil layer in front of the vehicle body in the traveling direction is 10 to 15 cm;
the depth of the front end part of the accommodating groove inserted into the soil layer at the bottom of the vehicle body in the advancing direction of the vehicle body is 10-20 cm.
Preferably, the depth of insertion of the front end portion of the second collection body into the soil layer ahead of the vehicle body in the traveling direction is 10 cm;
the depth of the front end portion of the accommodating groove inserted into the soil layer at the bottom of the vehicle body in the vehicle body advancing direction is 15 cm.
Preferably, the method further comprises the following steps: one end of each support frame is pivoted on the first side wall, and the other end of each support frame extends towards two sides of the first collecting body; two ends of the rotating shafts of at least two harvester rollers of the first collecting body are penetratingly and rotatably and vertically arranged on the pair of supporting frames; a first driving motor, a driving shaft of which is provided with a driving gear, and the driving gear is respectively meshed with driven gears on any end of the rotating shafts of at least two harvester drums and drives the driven gears; and the two ends of the supporting rod are respectively hinged to the two sides of the pair of supporting frames and the second collecting body.
Preferably, the method further comprises the following steps: the collecting groove is a long groove with an opening at the upper end, the collecting groove is arranged at the first side wall of the shell in a penetrating manner, and the collecting groove is positioned at the joint of the spiral crusher and the collecting part; the width of the cross section of the concentration groove is adapted to the width of the cross section of the rear end of the spiral crusher or the harvesting part; and
a plurality of barbs extending from the inner bottom surface of the concentration groove toward the first collection body, wherein the distance between the tip of each barb and the closest harvester roller of the first collection body is not more than 4 cm.
Preferably, the axis of the soil covering bin, the axis of the soil body taking body and the axis of the second collecting body are in the same plane, and the plane is vertical to the bottom surface of the vehicle body;
and the soil covering width of the soil covering bin, the soil taking width of the soil taking body and the vegetation collecting width of the second collecting body are matched.
Preferably, the width of the cross-section of the second harvesting body is gradually reduced from the front end of the second harvesting body to the rear end thereof;
a plurality of inserting rods are arranged on the fork-shaped structure at the front end of the second collecting body at intervals, and the distance between every two adjacent inserting rods is not more than 5 cm.
Preferably, the method further comprises the following steps:
the pair of elastic separation blades are vertically and fixedly arranged at two ends of the first collecting body, a first upper edge of any one of the elastic separation blades is connected to the baffle, a first lower edge corresponding to the first upper edge is connected to the second collecting body, so that an accommodating space with two open ends is formed among the baffle, the pair of elastic separation blades and the tail end of the second collecting body, and at least one harvester roller is accommodated in the accommodating space.
Preferably, the ratio of the cross-sectional diameter of the crushing section to the cross-sectional diameter of the screw conveyor is 1 to 2: 4.
preferably, the stirrer comprises a stirring shaft vertically arranged in the mixing barrel; and the stirring blade is arranged on the stirring shaft and is a spiral stirring blade or a hinge stirring blade.
The invention at least comprises the following beneficial effects:
the vehicle body is used for supporting, fixing and drawing the shell and other devices so as to synchronously finish the operations of borrowing soil, fetching vegetation, smashing vegetation, mixing and the like; the vehicle body generally comprises at least two groups of wheels, and a traction vehicle head with an engine can be arranged at the front end of the vehicle body, such as: a farm tractor head; or a push cab with an engine is provided at the rear end of the vehicle body, such as a cab of an excavator, to be connected to the rear end of the vehicle body by a push rod or the like; when the first telescopic rod is contracted to a certain length, the collecting part is driven to wholly descend to a certain height, the second collecting body can be inserted into soil to a certain depth, the second collecting body is inserted into the soil along with the advancing of the vehicle body, the vegetation can be pulled up with roots through the forked structure which is spread in a fan shape, then the vegetation is rotationally conveyed into the smashing part through the first collecting body to be smashed, the smashing part is a spiral crusher, and smashed vegetation scraps are conveyed into the mixing barrel while smashing; the distance between the harvester roller close to the joint and the bottom of the accommodating tank or the spiral crusher cannot exceed 30cm, so that the vegetation is guaranteed to be smoothly unloaded; the second telescopic rod is an electric telescopic rod or a hydraulic telescopic rod and is arranged below the soil sampling body, a base of the second telescopic rod, a driving motor or a hydraulic cylinder are fixed on the outer side of the first side wall or the front end of the vehicle body, the front end of the second telescopic rod is hinged to the lower surface of the soil sampling body, and when the second telescopic rod is stretched, the front end of the soil sampling body is driven to lift so as to realize smooth soil sampling; the stirrer is arranged in the mixing barrel, can be a stirring rod with a stainless steel stirring blade or a spiral stirring blade and is driven by a motor; the charging bucket can be the reinforced material of stainless steel, plastics material etc. and the bottom of charging bucket is provided with the filling tube, is provided with hand switch or electric switch on the filling tube for the flow of control heavy metal fixative.
In conclusion, the in-situ soil-turning mixed restoration device for the environment-friendly heavy metal contaminated soil has the function of uniformly doping the soil restoration agent and the ground vegetation debris after soil is taken in situ, and simultaneously, the mixed soil is synchronously and uniformly covered on the ground surface after the soil is taken, so that the mixing uniformity of the soil restoration agent in the soil is improved, the soil restoration is facilitated, the working efficiency of the mixed restoration is greatly improved, and the cost of manpower and material resources is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating an in-situ soil-turning hybrid remediation device for heavy metal contaminated soil according to an embodiment of the present invention;
fig. 2 is a schematic top view of the first receiving portion according to an embodiment of the present invention;
FIG. 3 is a schematic top view of the crushing section according to an embodiment of the present invention;
fig. 4 is a schematic longitudinal sectional view of the accommodating space under the baffle plate according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, 2 and 3, an in-situ soil-turning mixed remediation device for heavy metal contaminated soil comprises:
the tractor comprises a vehicle body 10, a traction vehicle head and a propelling vehicle, wherein a shell 20 is arranged on the vehicle body, an accommodating cavity is formed in the shell, at least two groups of wheel bodies are arranged on two sides of the vehicle body, and the traction vehicle head is arranged in front of the vehicle body or the propelling vehicle is arranged behind the vehicle body; collecting and smashing assembly 30 for vegetation, it sets up and is being close to first lateral wall 201 department of the front end of casing, just collecting and smashing assembly 301 and the crushing portion 302 that collect that the vegetation is linking up the setting each other, the articulated setting of rear end of collecting the portion is in the outside of first lateral wall, collect the portion and collect the body 3012 including first collection body 3011 and the second of arranging from top to bottom, the front end that the body was collected to the second is fan-shaped fork structure who expandes on the horizontal direction, collect the portion and use the pin joint as the setting that reciprocating motion can be from top to bottom in certain angle as the centre of a circle through first telescopic link, so that the front end portion that the body was collected to the second inserts the automobile body advancing direction in the soil layer in automobile body the place ahead, the lowest point of first collection body be higher than the upper surface in soil layer in the place ahead of automobile body advancing direction: the first collecting body is transversely arranged on the second collecting body, the front ends of the first collecting body and the second collecting body are arranged in parallel and nearly, and the vertical distance between the first collecting body and the second collecting body is not more than 20 cm; the first collecting body comprises a plurality of harvester rollers which are mutually parallel and rotate in the same direction, the harvester rollers rotate synchronously from the tail end of the second collecting body to the extending direction of the front end of the second collecting body, and the length of the harvester rollers is gradually reduced along with the gradual reduction of the width of the first collecting body; the crushing part is obliquely arranged in the shell and is a spiral crusher, and the joint of the crushing part and the collecting part is arranged by penetrating through the first side wall so as to form an oblique material conveying channel from the collecting part to the crushing part; a baffle 305 disposed above the collecting part, wherein one end of the baffle is fixed on the first sidewall, the other end of the baffle extends above the first collecting body, and the vertical distance between the lower surface of the baffle and the upper surface of the first collecting body is at least 20 cm; the length of the baffle is adapted to that of the first collecting body in the direction perpendicular to the travelling direction of the vehicle body; the spiral crusher can be a single-spiral crusher or a double-spiral crusher, and conveys crushed Chinese arborvitae seedlings while crushing; an earth-borrowing assembly 40 which is obliquely arranged near the bottom of the housing and is positioned at the rear side of the vegetation crushing assembly in the advancing direction of the vehicle body; the soil taking assembly comprises a soil taking body 401 and a spiral conveying body 402 which are connected end to end, the soil taking body is an accommodating groove with a triangular bottom surface and an upward opening, the relatively smaller end of the soil taking body connected with the spiral conveying body is hinged to the lower surface of the bottom of the shell through a second telescopic rod 403, the relatively larger end of the soil taking body extends towards the advancing direction of the vehicle body, and the soil taking body can reciprocate up and down within a certain angle by taking a hinge point as a circle center, so that the front end part of the accommodating groove is inserted into a soil layer at the bottom of the vehicle body in the advancing direction of the vehicle body; the spiral conveying body is obliquely arranged in the shell, and the lower end of the spiral conveying body penetrates through the bottom of the shell and extends to the relatively smaller end of the soil taking body so as to form a through soil conveying channel from the soil taking body into the spiral conveying body; in order to facilitate soil taking at the lower end of the spiral conveying body, a barrel body 404 can be arranged at the lower end of the spiral conveying body, and the bottom of the barrel body is slightly lower than the upper end of the accommodating groove, so that a U-shaped buffer area is formed at the joint of the accommodating groove and the spiral conveying body, soil is firstly concentrated in the barrel body under the action of gravity, and then is conveyed upwards after soil taking through the spiral conveying body; the mixing barrel 50 is a barrel body with an upward opening, the mixing barrel is arranged in the shell, and a discharge port I at the upper end of the crushing part and a soil outlet II at the upper end of the spiral conveying body extend into the opening of the mixing barrel; a stirrer 501 provided in the mixing tub; the feeding barrel 60 is internally provided with a heavy metal curing agent, a discharge port III of the feeding barrel extends to the opening of the mixing barrel, and the heavy metal curing agent is quantitatively added into the mixing barrel; the soil covering bin 70 is of a flattened funnel structure, a small opening of the flattened funnel structure penetrates through the side wall of the rear end of the shell and is communicated to the bottom of the mixing barrel, a large opening of the flattened funnel structure faces a soil layer behind the vehicle body, and the long diameter of the large opening of the flattened funnel structure is parallel to the ground; and the driving part is used for respectively driving the vehicle body, the vegetation harvesting and smashing component, the soil taking component, the stirrer and the charging barrel.
In the scheme, the vehicle body is used for supporting, fixing and drawing the shell and other devices so as to synchronously finish the operations of soil taking, vegetation smashing, mixing and the like; the vehicle body generally comprises at least two groups of wheels, and a traction vehicle head with an engine can be arranged at the front end of the vehicle body, such as: a farm tractor head; or a push cab with an engine is provided at the rear end of the vehicle body, such as a cab of an excavator, to be connected to the rear end of the vehicle body by a push rod or the like; the first telescopic rod and the second telescopic rod are electric telescopic rods or pneumatic telescopic rods; when the first telescopic rod is contracted to a certain length, the collecting part is driven to wholly descend to a certain height, the second collecting body can be inserted into soil to a certain depth, the second collecting body is inserted into the soil along with the advancing of the vehicle body, the vegetation can be pulled up with roots through the forked structure which is spread in a fan shape, then the vegetation is rotationally conveyed into the smashing part through the first collecting body to be smashed, the smashing part is a spiral crusher, and smashed vegetation scraps are conveyed into the mixing barrel while smashing; the distance between the harvester roller close to the joint and the bottom of the accommodating tank or the spiral crusher cannot exceed 30cm, so that the vegetation is guaranteed to be smoothly unloaded; the second telescopic rod is an electric telescopic rod or a hydraulic telescopic rod and is arranged below the soil sampling body, a base of the second telescopic rod, a driving motor or a hydraulic cylinder are fixed on the lower surface of the bottom of the vehicle body, the front end of the second telescopic rod is hinged to the lower surface of the soil sampling body, and when the second telescopic rod is telescopic, the front end of the soil sampling body is driven to lift so as to realize smooth soil sampling; the stirrer is arranged in the mixing barrel, can be a stirring rod with a stainless steel stirring blade or a spiral stirring blade and is driven by a motor; the charging bucket can be the reinforced material of stainless steel, plastics material etc. and the bottom of charging bucket is provided with the filling tube, is provided with hand switch or electric switch on the filling tube for the flow of control heavy metal fixative.
As shown in fig. 1, in the in-situ soil-turning mixed remediation device for heavy metal contaminated soil, the depth of the front end part of the second harvesting body inserted into the soil layer in front of the vehicle body in the advancing direction is 10-15 cm; specifically, it may be 10cm, 12cm, 14cm, 15cm or the like.
As shown in fig. 1, the depth of the front end portion of the housing groove inserted into the soil layer at the bottom of the vehicle body in the traveling direction of the vehicle body is 10 to 20 cm. Specifically, it may be 10cm, 12cm, 14cm, 16cm, 17cm, 19cm, 20cm or the like.
As shown in fig. 1, in the in-situ soil-turning mixed remediation device for heavy metal contaminated soil, the depth of the front end portion of the second harvesting body inserted into the soil layer in front of the vehicle body in the traveling direction is 10 cm;
the depth of the front end portion of the accommodating groove inserted into the soil layer at the bottom of the vehicle body in the vehicle body advancing direction is 15 cm.
As shown in fig. 4, the in-situ soil-turning mixed remediation device for heavy metal contaminated soil further comprises: one end of each support frame is pivoted on the first side wall, and the other end of each support frame extends towards two sides of the first collecting body; two ends of the rotating shafts of at least two harvester rollers of the first collecting body are penetratingly and rotatably and vertically arranged on the pair of supporting frames; a first driving motor, a driving shaft of which is provided with a driving gear, and the driving gear is respectively meshed with driven gears on any end of the rotating shafts of at least two harvester drums and drives the driven gears; and the two ends of the supporting rod are respectively hinged to the two sides of the pair of supporting frames and the second collecting body. In this scheme, a pair of support frame can be the rectangle structure, can be the triangle-shaped structure of invering, and is fixed in the support.
As shown in fig. 1 and 3, the in-situ soil-turning mixed remediation device for heavy metal contaminated soil further comprises: the concentration groove 304 is an elongated groove with an open upper end, the concentration groove is arranged at the first side wall of the shell in a penetrating manner, and the concentration groove is positioned at the joint of the spiral crusher and the collecting part; the width of the cross section of the concentration groove is adapted to the width of the cross section of the rear end of the spiral crusher or the harvesting part; and a plurality of barbs extending from the inner bottom of the concentration groove to the direction of the first collecting body, wherein the distance between the tip of the plurality of barbs and the closest harvester roller of the first collecting body is not more than 4cm, such as: it may be 2cm, 3cm or 4 cm. In the scheme, the concentration groove is used for conveniently and quickly concentrating the vegetation conveyed by the first collecting body for crushing treatment of the crushing part, and the concentration groove is provided with a plurality of barbs so as to quickly unload the vegetation from the rotating harvester roller, crush and transmit the vegetation; to avoid the plurality of barbs affecting the vegetation entering the grating portion, the length of the plurality of barbs may be set to 3cm, 5cm or 7cm, preferably not more than 7 cm.
As shown in fig. 1, in the in-situ soil-turning mixed remediation device for heavy metal contaminated soil, the axis of the soil covering bin, the axis of the soil taking body and the axis of the second collecting body are located on the same plane, and the plane is perpendicular to the bottom surface of the vehicle body;
and the soil covering width of the soil covering bin, the soil taking width of the soil taking body and the vegetation collecting width of the second collecting body are matched. And then can collect and smash vegetation and soil horizon in the same earth surface scope neatly, later again lay mixed soil on the plot in the same earth surface scope through covering the soil storehouse again, and make the seamless butt joint of plot after handling, not repeated the same plot of handling, guarantee that the volume of soil remediation agent is doped more accurately, even.
As shown in fig. 2 and 3, in the in-situ soil-turning mixing repair device for heavy metal contaminated soil, the width of the cross section of the second harvesting body gradually decreases from the front end of the second harvesting body to the rear end thereof; a plurality of inserting rods are arranged on the fork-shaped structure at the front end of the second collecting body at intervals, and the distance between every two adjacent inserting rods is not more than 5 cm. In order to guarantee that the vegetation can be collected the body by the second and link the root in the soil horizon and pull up, later collect the body through first again and transmit to crushing portion, for example: the distance between two adjacent inserted rods can be 2cm, 3cm or 4 cm.
As shown in fig. 4, the in-situ soil-turning mixed remediation device for heavy metal contaminated soil further comprises:
a pair of elastic blocking sheets 307 vertically and fixedly arranged at two ends of the first collecting body, wherein a first upper edge of any one of the elastic blocking sheets is connected to the baffle, and a first lower edge corresponding to the first upper edge is connected to the second collecting body, so that an accommodating space with two open ends is formed among the baffle, the pair of elastic blocking sheets and the tail end of the second collecting body, wherein at least one harvester roller is accommodated in the accommodating space. The pair of elastic blocking pieces can be made of rubber materials and have certain flexibility, and when the collecting part moves up and down in a reciprocating mode relative to the front end of the shell, the baffle does not displace along with the collecting part, and the using requirements can be met.
In the in-situ soil-turning mixed remediation device for heavy metal contaminated soil, the ratio of the cross section diameter of the crushing part to the cross section diameter of the spiral conveying body is 1-2: 4. Before taking out the soil mixed soil remediation agent, firstly, cleaning vegetation on a plot to be remedied and loosening soil locally so as to effectively avoid the problem of unsmooth soil taking; the heavy metal contaminated soil generally has little or no vegetation, so the cross-section diameter of the crushing part does not need to be too large, and can be properly reduced by a certain ratio relative to the cross-section diameter of the spiral conveying body, for example, the ratio of the two is 1: 4, 1: 3 or 1: 4, and the like.
As shown in fig. 1, in the in-situ soil-turning mixing repairing device for heavy metal contaminated soil, the stirrer comprises a stirring shaft which is vertically arranged in the mixing barrel; and the stirring blade is arranged on the stirring shaft and is a spiral stirring blade or a hinge stirring blade.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a heavy metal contaminated soil is with mixed prosthetic devices of normal position soil turning over which characterized in that includes:
the tractor comprises a tractor body, a traction vehicle;
the vegetation collects rubbing crusher spare, its setting is being close to the first lateral wall department of the front end of casing, just the vegetation collects rubbing crusher spare and collects portion and the crushing portion of collecting including linking up the setting each other, the articulated setting of rear end of collecting the portion is in the outside of first lateral wall, collect the portion and collect the body including the first body and the second of collecting of arranging from top to bottom, the front end that the body was collected to the second is fan-shaped fork structure who expandes on the horizontal direction, collect the portion and use the pin joint as the setting of reciprocating motion from top to bottom in certain angle as the centre of a circle through first telescopic link, so that the front end portion that the body was collected to the second inserts the automobile body advancing direction in the soil layer in automobile body the place ahead, the first body that collects the nadir be higher than the upper surface on the soil layer in automobile body advancing direction the place ahead: the first collecting body is transversely arranged on the second collecting body, the front ends of the first collecting body and the second collecting body are arranged in parallel and nearly, and the vertical distance between the first collecting body and the second collecting body is not more than 20 cm; the first collecting body comprises a plurality of harvester rollers which are mutually parallel and rotate in the same direction, the harvester rollers rotate synchronously from the tail end of the second collecting body to the extending direction of the front end of the second collecting body, and the length of the harvester rollers is gradually reduced along with the gradual reduction of the width of the first collecting body; the crushing part is obliquely arranged in the shell and is a spiral crusher, and the joint of the crushing part and the collecting part is arranged by penetrating through the first side wall so as to form an oblique material conveying channel from the collecting part to the crushing part; the baffle is arranged above the collecting part, one end of the baffle is fixed on the first side wall, the other end of the baffle extends above the second collecting body, and the vertical distance between the lower surface of the baffle and the upper surface of the second collecting body is at least 20 cm; the length of the baffle is adapted to that of the first collecting body in the direction perpendicular to the travelling direction of the vehicle body;
the soil taking assembly is obliquely arranged close to the bottom of the shell, and is positioned at the rear side of the vegetation crushing assembly in the advancing direction of the vehicle body; the soil taking assembly comprises a soil taking body and a spiral conveying body which are connected end to end, the soil taking body is an accommodating groove with a triangular bottom surface and an upward opening, the relatively smaller end of the soil taking body connected with the spiral conveying body is hinged to the lower surface of the bottom of the shell through a second telescopic rod, the relatively larger end of the soil taking body extends towards the advancing direction of the vehicle body, and the soil taking body can reciprocate up and down within a certain angle by taking a hinge point as a circle center, so that the front end part of the accommodating groove is inserted into a soil layer at the bottom of the vehicle body in the advancing direction of the vehicle body; the spiral conveying body is obliquely arranged in the shell, and the lower end of the spiral conveying body penetrates through the bottom of the shell and extends to the relatively smaller end of the soil taking body so as to form a through soil conveying channel from the soil taking body into the spiral conveying body;
the mixing barrel is a barrel body with an upward opening, the mixing barrel is arranged in the shell, and a discharge port I at the upper end of the crushing part and a soil outlet II at the upper end of the spiral conveying body extend into the opening of the mixing barrel; a stirrer disposed inside the mixing tub;
the feeding barrel is internally provided with a heavy metal curing agent, a discharge port III of the feeding barrel extends to an opening of the mixing barrel, and the heavy metal curing agent is quantitatively added into the mixing barrel;
the soil covering bin is of a flattened funnel structure, a small opening of the flattened funnel structure penetrates through the side wall of the rear end of the shell and is communicated to the bottom of the mixing barrel, a large opening of the flattened funnel structure faces the soil layer behind the vehicle body, and the long diameter of the large opening of the flattened funnel structure is parallel to the ground; and
the driving part is used for respectively driving the vehicle body, the vegetation harvesting and smashing assembly, the soil taking assembly, the stirrer and the feeding barrel.
2. The in-situ soil-turning mixing remediation device for heavy metal contaminated soil according to claim 1, wherein the depth of insertion of the front end portion of the second harvesting body into the soil layer ahead of the vehicle body in the traveling direction is 10-15 cm;
the depth of the front end part of the accommodating groove inserted into the soil layer at the bottom of the vehicle body in the advancing direction of the vehicle body is 10-20 cm.
3. The in-situ soil-turning mixing remediation device for heavy metal contaminated soil according to claim 1, wherein the depth of insertion of the front end portion of the second harvest body into the soil layer ahead of the vehicle body in the traveling direction is 10 cm;
the depth of the front end portion of the accommodating groove inserted into the soil layer at the bottom of the vehicle body in the vehicle body advancing direction is 15 cm.
4. The in-situ soil-turning hybrid restoration device for heavy metal contaminated soil according to claim 1, further comprising:
one end of each support frame is pivoted on the first side wall, and the other end of each support frame extends towards two sides of the first collecting body; two ends of the rotating shafts of at least two harvester rollers of the first collecting body are penetratingly and rotatably and vertically arranged on the pair of supporting frames; a first driving motor, a driving shaft of which is provided with a driving gear, and the driving gear is respectively meshed with driven gears on any end of the rotating shafts of at least two harvester drums and drives the driven gears; and the two ends of the supporting rod are respectively hinged to the two sides of the pair of supporting frames and the second collecting body.
5. The in-situ soil-turning hybrid restoration device for heavy metal contaminated soil according to claim 1, further comprising:
the collecting groove is a long groove with an opening at the upper end, the collecting groove is arranged at the first side wall of the shell in a penetrating manner, and the collecting groove is positioned at the joint of the spiral crusher and the collecting part; the width of the cross section of the concentration groove is adapted to the width of the cross section of the rear end of the spiral crusher or the harvesting part; and
a plurality of barbs extending from the inner bottom surface of the concentration groove toward the first collection body, wherein the distance between the tip of each barb and the closest harvester roller of the first collection body is not more than 4 cm.
6. The in-situ soil-turning mixing remediation device for heavy metal contaminated soil as claimed in claim 1, wherein the axis of the soil-covering bin, the axis of the soil-taking body and the axis of the second collecting body are in the same plane, and the plane is perpendicular to the bottom surface of the vehicle body;
and the soil covering width of the soil covering bin, the soil taking width of the soil taking body and the vegetation collecting width of the second collecting body are matched.
7. The in-situ soil-turning mixing remediation device for heavy metal contaminated soil according to claim 1, wherein the width of the cross section of the second harvesting body gradually decreases from the front end of the second harvesting body to the rear end thereof;
a plurality of inserting rods are arranged on the fork-shaped structure at the front end of the second collecting body at intervals, and the distance between every two adjacent inserting rods is not more than 5 cm.
8. The in-situ soil-turning hybrid restoration device for heavy metal contaminated soil according to claim 1, further comprising:
the pair of elastic separation blades are vertically and fixedly arranged at two ends of the first collecting body, a first upper edge of any one of the elastic separation blades is connected to the baffle, a first lower edge corresponding to the first upper edge is connected to the second collecting body, so that an accommodating space with two open ends is formed among the baffle, the pair of elastic separation blades and the tail end of the second collecting body, and at least one harvester roller is accommodated in the accommodating space.
9. The in-situ soil-turning mixing remediation device for heavy metal contaminated soil according to claim 1, wherein the ratio of the cross-sectional diameter of the crushing section to the cross-sectional diameter of the screw conveyor is 1-2: 4.
10. The in-situ soil turning, mixing and repairing device for heavy metal contaminated soil according to claim 1, wherein the stirrer comprises a stirring shaft which is vertically arranged in the mixing barrel; and the stirring blade is arranged on the stirring shaft and is a spiral stirring blade or a hinge stirring blade.
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| CN201810727054.6A CN110665953B (en) | 2018-07-03 | 2018-07-03 | Heavy metal contaminated soil is with normal position mixed prosthetic devices that digs |
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| CN114097332A (en) * | 2021-11-23 | 2022-03-01 | 李甲 | Device and method for rapidly treating soil pollution of refined farmland |
| CN114798709A (en) * | 2022-05-20 | 2022-07-29 | 河南省燎原勘测规划设计有限公司 | Ecological restoration equipment for mine wasteland |
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