JP2006326415A - Soil insolubilization treatment vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact soil insolubilization treatment vehicle capable of performing efficient and economical insolubilization treatment. <P>SOLUTION: The soil insolubilization treatment vehicle is provided with a soil and stone separator D for separating soil and stones, a soil crusher E for finely crushing the soil separated by the soil and stone separator D, and a spraying machine F for spraying an insolubilizer for insolubilizing contaminants contained in the soil to the crushed soil. The soil and stone separator D separates the soil and the stones while carrying the soil and the stones from the rear side of the vehicle to the front side, the separated soil is carried from the left side of the vehicle to the right side or from the right side to the left side and fed to the soil crusher E, and the soil crusher E carries the soil from the front side of the vehicle to the rear side. The insolubilizer is sprayed to the soil crushed by the soil crusher E by the spraying machine F, and the insolubilized soil is discharged from the rear end of the vehicle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a soil insolubilized vehicle.

  Conventionally, soil treatment such as insolubilization to prevent pollutants such as heavy metals from leaching out by mixing adsorbents into contaminated soil, soil improvement, etc. has been performed in large plants, away from urban areas Since it is necessary to transport excavated soil to a large plant, it is inefficient to process small-scale excavated soil.

  On the other hand, in recent years, in order to cope with small-scale construction for processing a relatively small amount of excavated soil in urban areas, proposals have been made for movable processing vehicles. Is a roll screen that screens excavated soil into soil and stone, a mixer that mixes chemicals and the like into the soil, a belt conveyor that transports the soil that has passed through the roll screen to the mixer, and a soil that is transported by the belt conveyor. A truck that is equipped with a feeder that supplies lime powder to the truck bed, a mixture screen that re-sieves the treated soil discharged from the mixer, and another machine that transports the screen below the mixer screen to the ground A belt conveyor is loaded on the truck bed.

  And this processing vehicle performs the above-mentioned process by unloading a mixer screen and a belt conveyor from a truck bed and developing them at a construction site (see Patent Document 1).

In addition, other processing vehicles include a crusher that crushes stones and the like contained in excavated soil, a belt conveyor that conveys the crushed stones and soil to the mixer, a chemical provided above the mixer, etc. There is also a tank equipped with a tank for charging the inside of the mixer (see Patent Document 2).
Japanese Patent Laid-Open No. 11-140904 (Embodiment of the Invention, FIG. 2) Japanese Utility Model Publication No. 4-1266953 (Embodiment of the Invention, FIG. 1)

  Now, in the above-mentioned processing vehicles, there are the following problems.

  First, in the processing vehicle of Patent Document 1, the excavated soil is screened with a roll screen, and only the excavated soil is conveyed to the mixer. It cannot pass through the roll screen and is returned to the ground without being sent to the mixer in the same way as a stone.

  If it does so, the soil which needs a process cannot be processed reliably, but there exists a malfunction which cannot perform an efficient soil process.

  Also, since the stone that has passed through the roll screen is sent to the mixer and crushed, the mixer becomes large, resulting in an increase in the size of the processing vehicle and the small-scale excavated soil. There is a possibility that the request to process in a small land cannot be satisfied.

  And even if it exists in the processing vehicle of patent document 2, since the crusher which grind | pulverizes the stone mixed in excavated soil is provided, the whole apparatus is large and invites the enlargement of a processing vehicle like patent document 1. Therefore, there is a possibility that the demand for processing a small excavated soil in a small land cannot be satisfied.

  Furthermore, in the processing vehicle of this patent document 2, stones contained in excavated soil are crushed in advance, and all of the crushed stone and soil are sent to the mixer, and the soil is put into the mixer. Since stones that do not require soil treatment are mixed in, the soil alone cannot be efficiently insolubilized, and there is a risk that it may become uneconomical due to the extra addition of chemicals and the like.

  Therefore, the present invention was devised to improve the above-mentioned problems, and the object of the present invention is to provide an efficient and economical contaminated soil insolubilization treatment and a compact soil insolubilization treatment vehicle. It is to be.

  In order to achieve the above object, the present invention provides a debris separator that separates debris, a soil crusher that finely pulverizes the soil separated by the debris separator, and an insolubilization that insolubilizes contaminants contained in the soil. In a soil insolubilized vehicle equipped with a spreader that spreads the agent on the crushed soil, the debris separator separates the debris while conveying the debris from the rear side to the front side of the vehicle, and the separated soil is separated from the vehicle It is transported from the left side to the right side or from the right side to the left side and thrown into the soil crusher. The soil crusher transports the soil from the front side to the rear side of the vehicle, and crushes with this soil crusher. The insolubilizing agent is sprayed on the ground soil with a spreader, and the insolubilized soil is discharged from the rear end of the vehicle.

  The soil insolubilized vehicle of the present invention is not equipped with a mixer for crushing stones, so that each unit used for insolubilization can be reduced in size, and excavated soil can be separated into debris. The soil is transported from the rear side to the front side of the vehicle by the machine, and the soil transported to the front side of the vehicle by the soil crusher is transported to the rear side, that is, the soil is transported along the U-shaped transport path. Therefore, the mounting space of the vehicle can be used efficiently, thereby making the soil insolubilized vehicle compact.

  Therefore, soil insolubilization treatment can be performed in narrow land, and soil input and discharge are both concentrated on the rear end side of the vehicle, so soil transfer after soil input and discharge is performed on the spot. Insolubilization can be performed with a small number of personnel.

  And the soil and stone are separated efficiently while the excavated soil is transported by the debris separator, and only the soil with less stone contamination is crushed by the soil grinder and the insolubilizer is sprayed, so the soil is efficiently Insolubilization treatment can be performed.

  Furthermore, the debris separator can efficiently separate the soil and stone without installing a crusher that crushes the stone mixed in the excavated soil, and the earth crusher crushes only the soil. It does not require a large power to be crushed, so the cost is low and the soil insolubilization treatment can be performed economically.

  The present invention will be described below based on the illustrated embodiments. FIG. 1 is a plan view of a soil insolubilized vehicle. FIG. 2 is a side view of the soil insolubilized vehicle. FIG. 3 is a perspective view of the debris separator. FIG. 4 is a perspective view showing a part of the screen strip. FIG. 5 is a perspective view showing a part of the crushing belt. FIG. 6 is a diagram illustrating a state in which excavated soil is conveyed by the debris separator. FIG. 7 is a schematic view of a soil grinder. FIG. 8 is a plan view of the soil grinder. FIG. 9A is an enlarged view showing a part of the crushing belt. FIG. 9B is an arrow view seen from the A direction of the crushing belt.

  As shown in FIG. 1, a soil insolubilization vehicle C in one embodiment includes a debris separator D that separates debris, a soil crusher E that finely pulverizes the soil separated by the debris separator D, And a spreader F for spraying an insolubilizing agent for insolubilizing the pollutant contained in the crushed soil to a loading platform of a truck T that is a vehicle.

  Hereinafter, each part will be described in detail. As shown in FIGS. 1 to 3, the debris separator D is front and rear with respect to the conveyor 2 including the screen belt 1 for conveying debris and the conveying direction of the conveyor 2. A crushing belt 3 for crushing soil that is supported at both ends and suspended above the conveyor 2 and conveyed by the screen belt 1, and a belt conveyor 4 that conveys the soil falling from the conveyor 2, and includes a track T It is mounted to the right with respect to the traveling direction of the cargo bed so that the soil conveying direction is inclined from the vehicle rear side to the front side.

  The debris separator D separates debris and conveys the separated soil to the belt conveyor 100 mounted on the loading platform of the truck T so as to be substantially perpendicular to the traveling direction.

  The conveyor 2 includes a pair of opposing frames 2a and 2b, rotary shafts 2c and 2d pivotally attached to both ends of the frames 2a and 2b, sprockets 2e provided on both ends of the rotary shafts 2c and 2d, and a rotary shaft, respectively. The screen belt 1 is wound around 2c and 2d, and is mounted on the loading platform of the track T at an angle with a predetermined angle. The rotary shaft 2d is driven to rotate by a drive source such as an electric motor (not shown). In this case, each sprocket 2e provided on the rotary shaft 2d moves the screen belt 1 counterclockwise in FIG. The drive sprocket is rotated in the conveyance direction.

  As shown in FIG. 4, the screen belt 1 includes a chain belt 1a wound around each sprocket 2e on the frame 2a side, a chain belt 1b wound around each sprocket 2e on the frame 2b side, and each chain belt 1a. , 1b and a plurality of connecting shafts 1c spanned with a predetermined interval L in the conveying direction of the screen band 1 between the axes of the links a.

  In addition, a hopper 2f for placing excavated soil on the screen band 1 of the conveyor 2 is installed above the base end side of the frames 2a and 2b on the rear side with respect to the conveying direction of the screen band 1 of the conveyor 2. The excavated soil put into the hopper 2f is conveyed upward in FIG. 2 by rotating the screen belt 1 in the conveying direction. The large size soil passes through the screen belt 1 and falls downward.

  And, above the screen band 1 of the conveyor 2, support members 3a and 3b for supporting the both ends of the crushing belt 3 slidably at positions that are front and rear in the conveying direction of the conveyor 2 are provided, Specifically, the support member 3a disposed at the upper side in FIG. 3 is provided on the frames 2a and 2b, and the support member 3b disposed at the lower side in FIG. 3 is provided at the end of the hopper 2f.

  As shown in FIG. 5, the crushing belt 3 includes a pair of chain belts 3c and a plurality of connecting shafts 3d spanned between the shafts of the links b in the chain belts 3c. The distance between the connecting shafts 3d is as follows. The screen band 1 is set to be shorter than the distance L between the connecting shafts 1c.

  The both ends of the crushing belt 3 are supported by the support members 3a and 3b so that the crushing belt 3 can swing. The crushing belt 3 is suspended above the conveyor 2 with a predetermined gap above the screen band 1 with respect to the screen band 1. While being lowered, the middle part of the crushing belt 3 is slackened and is in contact with the upper surface of the screen belt 1.

  The support member 3a described above is movable on the frames 2a and 2b so that the slackness of the crushing belt 3 can be adjusted, whereby the upper surface of the screen belt 1 is adjusted. It is also possible to form a gap between the belt and the lower surface of the crushing belt 3.

  Then, as shown in FIG. 6, when the excavated soil W mixed with the debris put into the hopper 2f is transported upward in FIG. 1 by the screen belt 1, the excavated soil W is separated from the crushing belt 3 and the screen in the middle thereof. It falls between the belt 1 and is sandwiched between the crushing belt 3 and the screen belt 1, and the earth lump in the excavated soil W is crushed and falls downward when the size becomes equal to or smaller than the interval L of the screen belt 1. It will be.

  On the other hand, since the stone S in the excavated soil is not crushed just by being sandwiched between the crushing belt 3 and the screen belt 1, the stone having a size larger than the interval L remains on the screen belt 1 as it is. Eventually, it will drop downward from the leading edge of the conveyor 2.

  Here, since the crushing belt 3 has the above-described configuration, each link b can change the posture in accordance with the shape of the stone S that is not crushed, so that the crushing of the clot cannot be performed by the stone S that is not crushed. Is prevented.

  In addition, since both ends of the crushing belt 3 are supported so as to leave a predetermined gap with respect to the screen belt 1, the excavated soil does not run above the crushing belt 3, and the intermediate portion is loosened. Therefore, the space between the crushing belt 3 and the screen belt 1 is gradually narrowed, and the excavated soil can be smoothly guided between the crushing belt 3 and the screen belt 1 to crush the soil mass finely.

  In addition, as shown in FIGS. 9 (A) and 9 (B), a projection 3e protruding toward the screen band 1 may be attached to the connecting shaft 3d of the crushing belt 3 so that the clot can be efficiently crushed.

  The protrusion 3e is formed in a substantially triangular shape on the tip side that protrudes toward the screen band 1, and is formed with a recess 3f that opens from the other end side and into which the connecting shaft 3d is inserted. The connecting shaft 3d is loosely fitted between the concave portion 3f and the U-shaped plate 3g which is attached to the other end of the projection 3e and closes the opening of the concave portion 3f, whereby the projection 3e is fixed to the connecting shaft 3d. Is done. A plurality of protrusions 3e are arranged in the axial direction on the connecting shaft 3d, and the protrusions 3e adjacent in the axial direction of the connecting shaft 3d are connected by the plate 3g.

  Further, the plurality of protrusions 3e are provided on the connecting shaft 3d in every other direction with respect to the moving direction of the screen band 1, and the protrusions 3e adjacent to the moving direction of the screen band 1 are connected to the connecting shaft 3d. It is attached to the connecting shaft 3d so as to be displaced in the axial direction. In addition, as shown in FIG. 6, every other attachment shaft 3d in the range Z close to the screen belt 1 of the crushing belt 3 is attached.

  Therefore, even if a clot transported by the screen belt 1 passes through between the projections 3e attached to one connecting shaft 3d, the clot can be crushed by the projection 3e attached to the next connecting shaft 3d. It is possible to avoid crushing the soil mass evenly.

  Incidentally, the shape of the protrusion 3e may be arbitrarily set. However, since the illustrated protrusion 3e has a substantially triangular shape and has a sharpened tip, the protrusion 3e is formed between the crushing belt 3 and the screen belt 1. The entering soil mass can be efficiently crushed, and further, the connecting shaft 1c of the screen band 1 is prevented from being caught by the protrusion 3e, and the progress of the screen band 1 is not hindered.

  Thus, the crushed soil blocks and soil pass through the connecting shafts 1c of the screen belt 1 and fall downward. These soils M are arranged along the conveyor 2 so as to overlap with each other. It falls on the belt 4a of a certain belt conveyor 4.

  More specifically, the frames 4b and 4c on both sides of the belt conveyor 4 are connected to the lower ends of the frames 2a and 2b of the conveyor 2, and the frames 4b and 4c of the belt conveyor 4 are fixed to the loading platform of the truck T. Are fixed to the upper ends of the support legs 51, 52, 53, 54 having different lengths, so that the debris separator D is obliquely mounted on the loading platform of the truck T.

  The belt conveyor 4 has a shorter conveying distance than the conveyor 2, and specifically, the end that is the front end of the belt conveyor 4 is disposed at a position on the near side of the front end of the conveyor 2. The end portion of the belt conveyor 100 is disposed immediately below the front end of the belt conveyor 4.

  Accordingly, the soil that has fallen on the belt conveyor 4 is conveyed to the belt conveyor 100 by the belt conveyor 4, and further conveyed to the inlet of the soil crusher E by the belt conveyor 100.

  In addition, the belt conveyor 100 is mounted on the loading platform in an inclined posture with the end portion disposed on the right side with respect to the traveling direction of the track T being lowered below the end portion disposed on the left side. The soil can be transported into a hopper 10b which is an inlet of a soil grinder E shown in FIG.

  On the other hand, the end of the stone discharge conveyor 101 installed on the ground is arranged below the most distal end of the conveyor 2, and the stone remaining on the screen belt 1 is eventually put on the ground by the stone discharge conveyor 101. Returned.

  As described above, since the conveyance end of the belt conveyor 4 disposed below is closer to the conveyance direction than the conveyance end of the conveyor 2, the stone is efficiently discharged to the ground, and the soil is removed. It is possible to put into the soil crusher E.

  Moreover, as above-mentioned, since excavated soil is crushed with the crushing belt 3 and the screen belt | band | zone 1 while conveying excavated soil with the conveyor 2, soil can be efficiently isolate | separated into a stone.

  Therefore, since the soil can be efficiently put into the soil crusher E, the soil insolubilization processing work is also very efficient.

  Furthermore, since the soil and stone can be efficiently separated during the excavation soil transport without the need for a large stone crusher, the stone separation machine D is small and light and can be easily mounted on the loading platform of the truck T. Suitable for its installation.

  As described above, since the debris separator D is tilted and mounted on the loading platform of the truck T, the inlet of the hopper 2f can be lowered, so that excavated soil can be input even with a small excavator. It becomes.

  Subsequently, as shown in FIGS. 7 and 8, the soil crusher E is basically arranged in the crushing tank 10, the belt conveyor 11 provided at the bottom of the crushing tank 10, and the conveying direction of the belt conveyor 11. As shown in FIG. 1, as shown in FIG. 1, the soil is transported leftward with respect to the traveling direction on the loading platform of the truck T, and the soil conveying direction is from the vehicle front side to the rear side. It is mounted on. That is, the debris separator D and the soil crusher E are arranged so that the conveying direction is along the front and rear of the vehicle and the conveying direction is parallel.

  Hereinafter, each part of the earth crusher E will be described. The crushing tank 10 is formed in a substantially rectangular parallelepiped shape, and an opening 10a communicating with the inside and outside of the crushing tank 10 is formed above the left end in FIG. The opening 10a is provided with a hopper 10b that is an inlet for facilitating the introduction of soil.

  And the other end side of the crushing tank 10 is inclined so that the upper part is inclined downward to form an inclined surface 10c, and the other end portion is opened to form a discharge port 10d for discharging soil. Has been.

  Further, a belt conveyor 11 is installed at the bottom of the crushing tank 10, and the belt conveyor 11 is a driving belt 11b, a driven rotor 11a, and a transport belt wound around the driving rotor 11b and the driven rotor 11a. 11c, and the conveyance distance is set to be longer than the left and right lengths in FIG.

  And the right end in FIG. 7 of the belt conveyor 11 is made to protrude from the discharge port 10d, and the soil thrown in from the hopper 10b can be conveyed out of the discharge port 10d.

  On the other hand, the crushing rotor 12 includes a shaft 12 a rotatably attached to the crushing tank 10 and a plurality of crushing blades 12 b attached to the shaft 12 a, and a plurality of crushing rotors 12 are provided side by side in the conveying direction of the belt conveyor 11. . As shown in FIG. 8, a plurality of pulverization blades 12b are provided side by side in the axial direction of the shaft 12a. In the figure, four crushing rotors 12 are provided, but two or more crushing rotors may be used.

  In addition, a predetermined interval is provided so that the arc drawn when the tip of the grinding blade 12b serving as the outer periphery of the grinding rotor 12 rotates and the upper surface of the transport belt 11c of the belt conveyor 11 do not interfere with each other.

  The shape of the pulverization blade 12b may be any shape as long as it is suitable for pulverizing the soil. Specifically, for example, the illustrated pedal shape or fin shape may be used. Is possible.

  Further, the distance between the shafts 12a is set so as to be suitable for soil crushing, but when the shafts 12a are arranged in a positional relationship such that the trajectories of the tips of the crushing blades 12b intersect, adjacent shafts 12a so that each crushing blade 12b provided on one shaft 12a is inserted between each crushing blade 12b provided on the other shaft 12a, that is, each crushing blade 12b between adjacent shafts 12a is nested. The crushing blades 12b may be prevented from interfering with each other.

  Each shaft 12a of the crushing rotor 12 is rotationally driven in the direction of the arrow in FIG. 7 by each drive source 12c such as a hydraulic motor provided on the side of the crushing tank 10, and The rotational speeds are set to be different from each other, and the rotational speed of the crushing rotor 12 located on the discharge port 10d side is set to be higher than the rotational speed of the crushing rotor 12 located on the hopper 10b side that is the charging port side. Has been.

  That is, the rotational speed of the grinding rotor 12 increases as it goes from the hopper 10b side to the discharge port 10d side. Further, the conveying speed of the belt 11c of the belt conveyor 11 is lower than the circumferential speed at the outermost periphery of the grinding rotor 12 near the hopper 10b rotating at the lowest rotational speed, that is, the circumferential speed at the tip of the grinding blade 12b. Is set to

  When each drive source 12c is a hydraulic motor, it may be driven by receiving hydraulic pressure from a hydraulic pump driven by the output of the traveling engine of the truck T using power take-off, By doing so, it is possible to suppress the increase in the weight of the soil insolubilized vehicle without requiring the installation of a dedicated prime mover.

  Moreover, each drive source 12c is attached to the crush tank 10 so that it may become the center side of the track | truck T, and it is considered so that the right-and-left weight distribution of a soil insolubilization processing vehicle may not be biased as much as possible.

  Further, in this earth crusher E, in addition to the crushing rotor 12 described above, a feeder 13 provided with a plurality of blades that are rotationally driven is provided in the vicinity of the discharge port 10d. Is a leveling means for leveling the height of the soil crushed by the plurality of pulverizing rotors 12 and conveyed to the discharge port 10d by the belt conveyor 11 to a predetermined height.

  An inclined surface 10c and a discharge port 10d are provided at the other end of the crushing tank 10, and the soil can be leveled at a certain height by the inclined surface 10c and the discharge port 10d. However, it is possible to use only the inclined surface 10c and the discharge port 10d as a leveling means, but it is better to provide a feeder 13 that is actively driven and to level the soil with the feeder 13 in the vicinity of the discharge port 10d. There is an advantage that it is possible to prevent the soil from staying there.

  In addition, a spraying means is provided above the portion of the belt conveyor 11 that protrudes from the discharge port 10d. In this case, specifically, the spraying means is the spray nozzle 14.

  The spray nozzle 14 sprays an insolubilizer containing minerals adsorbing contaminants supplied from the tank R storing the insolubilizer shown in FIG. 1 onto the soil on the transport zone 11c. The machine F includes the tank R and the spray nozzle 14.

  In addition, although the said insolubilizing agent is made into the slurry form so that it may be easy to spread with the spray nozzle 14, when spraying a granular insolubilizing agent, a spraying means shall be made easy to spray a granular insolubilizing agent. Also good. The tank R described above is installed on the bed of the truck T and between the debris separator D and the earth crusher E.

  Next, the operation of the soil pulverizer configured as described above will be described. The soil charged into the hopper 10b is transported toward the discharge port 10d by the belt conveyor 11, and each pulverizing rotor is transported in the middle of the transport. 12 to grind.

  At this time, since the rotational speeds of the respective grinding rotors 12 are different, the positions at which the grinding blades 12b of the neighboring grinding rotors 12 pass each other can be periodically made different and the number of times of passing can be increased, whereby It can be pulverized evenly.

  As described above, in the soil pulverizer E, the soil can be pulverized without unevenness, so that the subsequent mixing work of the insolubilizing agent and the like is facilitated.

  The rotational speed of each crushing rotor 12 is set so as to increase toward the discharge port 10d, thereby increasing the speed of movement of the soil on the discharge port 10d side in the crushing tank 10 to increase the speed on the hopper 10b side. The amount of soil on the discharge port 10d side can be reduced from the amount of soil, and the soil is conveyed by the belt conveyor 11, so that the soil does not stay near the discharge port 10d and the discharge port 10d is not clogged.

  Furthermore, since the conveying speed of the belt conveyor 11 is set lower than the peripheral speed of the crushing rotor 12 directly below the charging port that rotates at the lowest speed, the crushing blades 12b of the crushing rotor 12 have a moving speed of the soil conveyed by the belt conveyor 11. The amount of soil that is discharged without being caught up by the crushing blades 12b without being caught up can be reduced, whereby the soil can be finely crushed.

  In this way, the soil conveyed to the vicinity of the discharge port 10d by the belt conveyor 11 is finely pulverized by each of the pulverization rotors 12 described above, but the soil that has been pulverized and deposited on the belt conveyor 11 is discharged from the discharge port 10d. The feeder 13 which is a leveling means provided in the vicinity levels the soil accumulation height to a predetermined height and discharges it from the discharge port 10d.

  Subsequently, as shown in FIGS. 1 and 2, the soil discharged from the discharge port 10 d is directly conveyed by the belt conveyor 11 and supplied with the insolubilizing agent from the spray nozzle 14. Then, after spraying the insolubilizing agent, the soil is conveyed to the rear end of the track T by the belt conveyor 11 and falls from the rear end of the track T to the ground. By being performed, the insolubilizer is laminated on the soil and mixed with the soil.

  Therefore, in this soil pulverizer E, it is possible to spray the insolubilizing agent on the moving soil in the transport belt 11c, and the soil and the insolubilizing agent can be mixed without providing a mixer or the like. it can.

  Further, in particular, by leveling the soil to a predetermined height by leveling means, the ratio of the insolubilizing agent to the soil can be made uniform, and when the level of the soil is leveled low, It is possible to mix the soil and the insolubilizing agent evenly.

  Incidentally, as described above, since the inclined surface 10c and the discharge port 10d also have a soil leveling function, even if an abnormality occurs in the feeder 13, the soil is leveled by the inclined surface 10c and the discharge port 10d. A situation in which mixing with the insolubilizer becomes impossible can be avoided.

  As described above, the soil pulverizer E has many advantages described above. However, as long as it is possible to transport the soil from the front side to the rear side while pulverizing the soil, other than the soil pulverizer E described above. It is also possible to use a soil grinder, and it is also possible to use a soil grinder with only one grinding rotor.

  In the soil insolubilized vehicle configured as described above, when the excavated soil is first put into the hopper 2f of the debris separator D, the excavated soil is separated into soil and stone, and the truck T, which is a vehicle. It is conveyed from the rear side to the front side. Then, the separated soil is conveyed to the belt conveyor 100 and put into the hopper 10 b of the soil crusher E, while the stone is returned to the ground via the stone discharge conveyor 101.

  The soil thrown into the soil pulverizer E is transported from the front side to the rear side of the truck T, which is a vehicle, while being finely crushed, and is sprayed with the insolubilizing agent from the spray nozzle 14 from the rear end of the truck T. Will be discharged.

  Therefore, since this soil insolubilization vehicle is not equipped with a mixer for crushing stones, the individual devices used for insolubilization treatment can be reduced in size, and excavated soil can be separated into debris. Is transported from the rear side to the front side of the vehicle by the machine D, and is transported to the rear side of the vehicle by the soil crusher E. That is, the soil is transported along a U-shaped transport path, so that the truck T This makes it possible to efficiently use the space of the cargo bed, thereby making the soil insolubilized vehicle compact.

  In addition, it is possible to perform soil insolubilization treatment in a narrow land, and since both soil input and discharge are concentrated on the rear end side of the vehicle, soil transfer after soil input and discharge is performed on the spot. Insolubilization can be performed with a small number of personnel.

  Furthermore, the debris separator D and the soil crusher E are arranged so that the transport direction is parallel to the front and rear of the vehicle and the transport direction is parallel, so that the debris separator D and the soil crusher E travel the track T. The layout is arranged to the left and right with respect to the direction, the soil transport path can be as described above, and the right and left weight distribution of the soil insolubilized vehicle of the device for insolubilization treatment can be optimized, and the vehicle body posture Can be stabilized.

  In the above-described embodiment, the debris separator D is mounted on the right side with respect to the traveling direction of the vehicle, and the earth crusher E is mounted on the left side with respect to the traveling direction of the vehicle. The arrangement of the debris separator D and the earth crusher E may be reversed with the conveying direction and the inclination reversed.

  And, since the soil and stone are separated efficiently while the excavated soil is transported by the debris separator D, only the soil with less stone contamination is crushed by the soil pulverizer E and the insolubilizer is sprayed. The soil can be insolubilized.

  In addition, when the spreader F is installed between the debris separator D and the soil crusher E, the right and left weight distribution of the soil insolubilized vehicle is not different before and after the spraying of the insolubilizing agent. It becomes possible to stabilize the vehicle body posture.

  Furthermore, the debris separator D can efficiently separate the soil and the stone without mounting a crusher for crushing the stone mixed in the excavated soil, and the earth crusher E pulverizes only the soil. It does not require large power for crushing stones, so the cost is low and the soil insolubilization treatment can be performed economically.

  Moreover, the debris separator D is mounted on the vehicle in an inclined posture so that the rear side is lower than the front side of the vehicle so that the soil is conveyed from the lower side to the upper side. As a result, soil insolubilization treatment can be reliably realized in narrow land.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

It is a top view of a soil insolubilization processing vehicle. It is a side view of a soil insolubilization processing vehicle. It is a perspective view of a debris separator. It is a perspective view which shows a part of screen strip. It is a perspective view which shows a part of crushing belt. It is a figure which shows the state which is excavating soil with the debris separator. It is the schematic of a soil grinder. It is a top view of a soil grinder. (A) It is an enlarged view which shows a part of crushing belt. (B) It is the arrow view seen from the A direction of the crushing belt.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screen belt 2 Conveyor 3 Crushing belts 4, 11, 100 Belt conveyor 10 Crushing tank 12 Crushing rotor 13 Feeder 14 serving as leveling means Spray nozzle serving as spraying means C Soil insolubilized processing vehicle D Debris separator E Soil grinder F Spraying Machine R Tank T Vehicle truck

Claims (12)

A debris separator that separates debris, a soil crusher that finely pulverizes the soil separated by the debris separator, and a spreader that sprays an insolubilizer that insolubilizes contaminants contained in the soil to the crushed soil. In the soil insolubilization vehicle provided, the debris separator separates debris while conveying debris from the rear side of the vehicle to the front side, and the separated soil is from the left side of the vehicle to the right side or from the right side. It is transported to the left side and thrown into the soil pulverizer, the soil pulverizer transports the soil from the front side to the rear side of the vehicle, and the insolubilizer is sprayed on the soil crushed by this soil pulverizer with a spreader. A soil insolubilized vehicle characterized by discharging insolubilized soil from the rear end of a vehicle. 2. The soil insolubilized vehicle according to claim 1, wherein the debris separator and the soil crusher are arranged so that the conveying direction is along the front and rear of the vehicle and the conveying direction is parallel. The spreader includes a tank for storing the insolubilizing agent and a spraying means connected to the tank for supplying the insolubilizing agent to the soil, and the tank is installed between the debris separator and the soil crusher. The soil insolubilized vehicle according to claim 1 or 2. The debris separator is a conveyor equipped with a screen strip for transporting debris, and crushing the soil transported by the screen strip suspended at the top of the conveyor, supported at the front and rear ends with respect to the transport direction of the conveyor The soil insolubilized vehicle according to any one of claims 1 to 3, further comprising a belt and a belt conveyor that conveys soil falling from the conveyor. 5. The soil insolubilized vehicle according to claim 1, wherein the debris separator is mounted on the vehicle in an inclined posture and conveys the debris from below to above. Both ends before and after the crushing belt are supported with a predetermined gap above the screen band with respect to the screen band of the conveyor, and at least a part of the middle part of the crushing belt is slack. The soil insolubilized vehicle according to claim 4 or 5. The soil insolubilized vehicle according to any one of claims 1 to 4, wherein the crushing belt is provided with a plurality of protrusions protruding toward the screen belt. The soil pulverizer includes a belt conveyor that conveys soil introduced from an input port provided on one end side to a discharge port on the other end side, and a plurality of pulverization rotors provided above the belt conveyor and arranged in the conveying direction. The rotation speed of each crushing rotor is different, and the rotation speed of the crushing rotor located on the discharge port side is higher than the rotation speed of the crushing rotor located on the input port side. The described soil insolubilized vehicle. 9. The soil insolubilized vehicle according to claim 8, wherein the conveying speed of the belt conveyor in the soil pulverizer is at least lower than the peripheral speed of the outermost periphery of the pulverizing rotor rotating at the slowest rotational speed. 10. The soil insolubilized vehicle according to claim 8, wherein an end portion of a belt conveyor in the soil pulverizer is protruded from a discharge port, and spraying means is provided above a portion protruding from the discharge port. The soil insolubilized vehicle according to any one of claims 8 to 10, further comprising a leveling means for leveling the height of the soil conveyed outside the discharge port to a predetermined height. The soil insolubilized vehicle according to any one of claims 1 to 11, wherein the debris separator, the soil grinder, and the spreader are detachably mounted on the vehicle.

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