JP2004250994A - Discharged earth treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the size of a discharged earth treatment apparatus by unitizing component devices. <P>SOLUTION: The discharged earth treatment apparatus is formed of: an apparatus main body 5; a negative pressure tank 7 arranged on the top of the main body, for sucking excavated earth, sand, etc.; a vacuum generating device 9 for decompressing the interior of the negative pressure tank 7. A continuous earth discharging pump 11 is arranged below the negative pressure tank 7, for continuously discharging the earth, sand, etc. in the negative pressure tank 7. An earth/sand separating device 13 is arranged below the continuous earth discharging pump 11, for separating the earth, sand, etc. discharged from the continuous earth discharging pump 11 into sand, slurry, water, etc. A storage tank 15 is arranged below the earth separating device 13, for storing the water etc. separated by the earth separating device 13. A slurry hardening and earth recycling device 17 is arranged adjacently to the earth separating device 13, for hardening the slurry from the earth separating device 13 and generating and discharging recycled earth. Thus the various devices mentioned as above are unitized and incorporated in the apparatus main body 5, to thereby make the whole apparatus compact. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earth removal apparatus for sucking earth and sand excavated by an excavator, discharging the earth while maintaining a negative pressure for the suction, and separating the earth so that it can be reused.
[0002]
[Prior art]
Conventionally, as an earth removal treatment device, earth and sand excavated by an excavator are sucked and carried via a hose into a negative pressure tank that has been made negative pressure by a vacuum generator such as a vacuum pump, and the negative pressure tank The sediment accumulated inside is separated into stones, sands, sludge (sludge), and water by an earth removal device. The separated stones and sand are carried on a transport vehicle such as a dump truck. On the other hand, the separated sludge is conveyed to a solidifying device by a belt conveyor, solidified by a solidifying device by a chemical such as a solidifying agent, and formed into reclaimed soil, and the reclaimed soil is reused for land reclamation and the like. Water is stored in a storage tank (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-11-303133 ([0011] to [0022], FIG. 1)
[0004]
[Problems to be solved by the invention]
By the way, in the conventional earth removal treatment device, the negative pressure tank, the earth separation device and the storage tank are almost integrated, but the negative pressure tank is large, and the vacuum generation device and the solidification device are installed independently. Have been. Accordingly, in addition to the above-described devices, it is necessary to install auxiliary equipment such as a conveyor device and a generator near the excavation work site.
[0005]
In addition, since each of the above devices is a heavy object, it is necessary to install the device with a crane or the like, and it takes time and effort to replace the device with a crane every time the work site moves, resulting in an increase in construction costs. there were.
[0006]
In addition, excavation work may be performed for a long period of time, in which case when the work is not performed such as at night or rainy weather, the above facilities are left at the site, for example, obstructing traffic etc. There was a problem. In addition, when sludge is left untreated, there is a problem that a bad smell drifts around the sludge.
[0007]
Further, in the above-described state, the appearance is not good and the problem of noise occurs due to the complicated site, and therefore, it is unpleasant for ordinary people, especially in the vicinity of residential areas.
[0008]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a soil removal treatment device in which various devices are unitized to be compact and the compacted device can be easily moved. It is in.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an earth removal apparatus according to the present invention according to claim 1 includes a negative pressure tank for sucking excavated earth and sand, a vacuum generating device for generating a negative pressure in the negative pressure tank, and the negative pressure tank. A continuous earth removal pump for continuously discharging earth and sand in a tank, a earth and sand separation device for separating earth and sand discharged from the continuous earth removal pump into sand, sludge and water, and this earth and sand separation device A storage tank for storing the water separated in the above, and a sludge solidified regenerated soil device for solidifying the sludge separated by the sediment separation device to generate and discharge regenerated soil, and integrally forming a unit with the device main body. It is characterized by comprising.
[0010]
Therefore, various devices are arranged in the device main body so as to be able to efficiently perform earth removal processing and are integrally unitized to be compact, so that it is possible to easily install or move the device at the excavation site. Therefore, the installation cost is low, and a large space is not required. Further, since the earth removal treatment device is compact, the surroundings can be covered by a soundproof wall or the like, and the problem of noise is also eliminated. Moreover, the work site is not cluttered.
[0011]
According to a second aspect of the present invention, in the first aspect of the present invention, the traveling body is provided with an apparatus main body in which the various devices are integrally united. Things.
[0012]
Therefore, since various devices are unitized in the device main body, the traveling vehicle equipped with the device main body only needs to move to the excavation site, and installation work by a crane or the like is eliminated.
[0013]
Further, even when the excavation work is performed for a long period of time, the time period during which the work is not performed can be stored in, for example, a garage. Moreover, since sludge and the like are not left untreated, the problem of bad smell around the work site is eliminated.
[0014]
According to a third aspect of the present invention, there is provided the earth removal treatment apparatus according to the first or second aspect, wherein a solidifying agent hopper for storing a solidifying agent is provided on an upper side of the sludge solidified regenerated soil device, and the sludge solidification is performed. A reclaimed soil transport device for discharging generated reclaimed soil is provided below the reclaimed soil device.
[0015]
Therefore, a predetermined amount of the solidifying agent is put into the sludge to be treated from the solidifying agent hopper, and the generated regenerated soil is efficiently discharged from the lower regenerated soil transport device.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
Referring to FIG. 1 to FIG. 3, the earth removal treatment device 1 according to this embodiment can be mounted on a truck 3 in order to make it compact so that it can be mounted on a truck 3 of, for example, a 4-ton truck as a traveling vehicle. The apparatus main body (frame) 5 having a large size has a negative pressure tank 7, a vacuum generator 9, a continuous earth removal pump 11, a sediment separator 13, a storage tank 15, a sludge solidification reclaimed soil device 17, and a reclaimed soil transport device. For example, various devices of the unloading auger 19 are arranged so that the unloading process can be performed efficiently.
[0018]
The negative pressure tank 7 sucks excavated earth and sand, and is disposed above the apparatus main body (frame) 5. In this embodiment, as shown in FIG. 3, the negative pressure tank 7 has a semi-circular cross section in which the upper wall is a flat plate 21 and the bottom plate 23 is both a side wall and a bottom wall. In other words, the tank has a structure in which the tank capacity is increased by using a substantially flat tank that is long in the lateral direction, and the inside is closed so as to be in a negative pressure state.
[0019]
1, two surfaces of a right side plate 25 and a partition plate 27 facing the right side plate 25 are tapered toward the bottom inside the negative pressure tank 7 in FIG. Is a sediment storage unit 29 for storing the soil. At the bottom of the sediment storage section 29, a square discharging port 31 is provided to discharge the accumulated sediment. In FIG. 1, the inside of the left side of the negative pressure tank 7 is provided with a partition chamber 35 partitioned by several partition plates 33, and the partition chamber 35 communicates with the above-mentioned sediment storage section 29. Therefore, the negative pressure in the sediment storage unit 29 does not suddenly change even if some outside air flows in when the sediment accumulated in the sediment storage unit 29 is discharged.
[0020]
Further, a sludge suction duct 37 having a sludge suction port is communicated with the right side plate 25 in the sediment storage part 29, and a sludge suction hose 39 for sucking excavated sediment is communicated with the sludge suction duct 37. Have been. Further, a vacuum suction duct 41 having a vacuum suction port is provided at the bottom of the above-mentioned negative pressure tank 7 on the left side in FIG. 1, and the vacuum suction duct 41 is connected to the vacuum generator 9 via a vacuum suction hose 43. Are in communication.
[0021]
The vacuum generating device 9 is for making the inside of the negative pressure tank 7 a negative pressure, for example, has a vacuum pump, and is arranged near the negative pressure tank 7. In this embodiment, it is arranged on the upper side in FIG.
[0022]
The continuous earth discharging pump 11 is for continuously discharging earth and sand in the negative pressure tank 7, and as shown in FIGS. 1, 4 and 5, the continuous earth discharging pump 11 Located at the bottom. The housing 45 includes a cylindrical housing 45, a seal liner 47 fitted in the housing 45, and formed of an elastic member such as rubber, and a rotor 49 that rotates in contact with the seal liner 47.
[0023]
An inlet 51 having a shape corresponding to the discharge port 31 of the negative pressure tank 7 is provided at an upper portion of the housing 45 and the seal liner 47, and an outlet 53 is provided at a lower portion. The inflow port 51 and the discharge port 31 of the negative pressure tank 7 are closedly communicated via the inflow pipe 55 so that the negative pressure state does not suddenly change.
[0024]
The rotor 49 has a main shaft 61 supported on a bearing plate 57 for closing the left and right ends of the housing 45 via a bearing 59 such as a bearing, and is radially welded to the peripheral surface of the main shaft 61 so as to be radially radial. A plurality of wing plates 63, a disk-shaped side plate 65 connecting the left and right ends of the wing plate 63 and the main shaft 61, and a peripheral surface seal 67 provided at the radial end of each wing plate 63. An end face seal 69 provided on the outer peripheral surface of the side plate 65 is provided. The main shaft 61 is driven to rotate by the motor M shown in FIG. In addition, as shown in FIG. 4, the blades 63 are radially arranged at six equally spaced positions in the circumferential direction.
[0025]
Therefore, when the rotor 49 is driven to rotate, the blade plate 63 and the housing 45 have a structure in which the seal liner 47, the peripheral seal 67, and the end seal 69 compress and deform by a predetermined amount so as to be in close contact with each other. .
[0026]
The earth and sand separating device 13 separates earth and sand discharged from the continuous earth discharging pump 11 into stones, sands, sludge, and water, and is disposed below the continuous earth discharging pump 11. The sediment separating device 13 includes a sieve portion including first and second sieve conveyors 71 and 73 arranged in two stages, a sieve vibrating portion 75 such as a vibration motor for vibrating the sieve portion, and a vibration of the sieve portion. It is constituted by a vibration absorbing portion 77 such as a spring for absorbing.
[0027]
The first-stage first sieve conveyor 71 is provided with a large number of passage holes for allowing sludge and water to pass therethrough on the conveying surface, and a sand discharge port 79 for discharging stones and sand is provided on the right side in FIG. Have been. The second-stage second sieve conveyor 73 is provided with a large number of passage holes for allowing water to pass through on the transport surface, and a sludge discharge port 81 for discharging sludge is provided on the right side in FIG.
[0028]
The storage tank 15 stores the water separated by the sediment separation device 13 and is disposed below the sediment separation device 13. In this embodiment, the storage tank 15 is partitioned into, for example, three primary, secondary, and tertiary sedimentation tanks 83A, 83B, and 83C. The sedimentation tanks 83A, 83B, and 83C are configured to sequentially flow into the tertiary sedimentation tanks 83A, 83B, and 83C so that the fine sand in the waters precipitates and is separated from the waters. The water in the tertiary sedimentation tank 83C is configured to be reused by a submersible pump (not shown).
[0029]
The sludge solidifying and regenerating soil device 17 solidifies the sludge separated by the above-mentioned sediment separating device 13 to generate regenerated soil, and is disposed adjacent to the sludge discharge port 81 of the sediment separating device 13. In this embodiment, the sediment separator 13 is adjacent to the right side in FIG.
[0030]
The above-mentioned sludge solidification and regeneration soil device 17 is provided with a sludge input tank 87 provided with a sludge input port 85 for inputting sludge discharged from a sludge discharge port 81, and is disposed below the sludge input tank 87 to solidify sludge. The sludge solidification and stirring tank 91 for stirring the agent by the stirring blade 89 to generate regenerated soil, the stirring motor 93 for rotating and driving the stirring blade 89, and the sludge charging tank 87 are arranged side by side in FIG. A solidifying agent hopper 95 that is disposed above the sludge solidifying and stirring tank 91 and stores a solidifying agent for solidifying the sludge; and the solidifying agent hopper 95 is interposed between the solidifying agent hopper 95 and the sludge solidifying and stirring tank 91. A solidifying agent charging duct 97 provided with a solidifying agent charging device 97A for charging a predetermined amount of the solidifying agent in the solidifying agent hopper 95 into the sludge solidifying and stirring tank 91; Communication between And a second slide shutter 101 provided at the bottom of the sludge solidification stirring tank 91 and provided at the bottom of the sludge solidification and stirring tank 91 so as to be openable and closable. ing.
[0031]
In the vicinity of the solidifying agent hopper 95, a scaffold 103, a ladder 105, and a handrail 107 are provided on the apparatus main body (frame) 5 for an operator to put the solidifying agent through the upper opening of the solidifying agent hopper 95. . Also, to the right of the sand discharge port 79 of the sediment separation device 13 in FIG. 1, sand and sand for discharging stones and sand discharged from the sand discharge port 79 to be loaded on a dump truck, for example. A shooter 109 is provided on the apparatus main body (frame) 5.
[0032]
The soil discharging auger 19 is a reclaimed soil transport device for discharging the regenerated soil generated by the sludge solidified regenerated soil device 17, and is disposed below the sludge solidified stirring tank 91 of the sludge solidified regenerated soil device 17. The upper part of the casing 111 having a substantially cylindrical shape communicates with the reclaimed soil discharge port at the bottom of the sludge solidification and stirring tank 91, and a screw 115 that is rotationally driven by a drive motor 113 is provided inside the casing 111. A discharging port 117 for discharging the reclaimed soil is provided at the right end of the casing 111 in FIG. Note that the casing 111 is configured so that the vertical inclination can be slightly changed with a support shaft 119 provided substantially at the center in the longitudinal direction as a fulcrum.
[0033]
With the above configuration, the pressure in the negative pressure tank 7 is reduced to a predetermined negative pressure by the vacuum pump as the vacuum generating device 9, so that the excavated earth and sand is discharged from the sludge suction duct 37 through the sludge suction hose 39. It will continuously and stably flow into the sediment storage section 29 in the negative pressure tank 7. This earth and sand includes earth and sand such as stone and soil, and water such as water and chemicals used for excavation. The earth and sand sucked in this way accumulate on the bottom of the earth and sand storage part 29 and flow into the continuous earth discharging pump 11 through the earth discharging port 31 and the inlet 51.
[0034]
As the rotor 49 continues to rotate in one direction, the continuous earth discharging pump 11 sequentially receives the earth and sand that have entered from the negative pressure tank 7 by gravity between the two blade plates 63 and then rotates to the outlet 53. Then, it drops from the outlet 53 onto the first sieve conveyor 71 of the first stage of the earth and sand separating device 13 below by the gravity. The sediment is again received at the inflow port 51 between the two empty blades 63 and moved to the outflow port 53. In this way, the sediment at the bottom of the sediment storage unit 29 is successively dropped onto the first sieve conveyor 71 of the sediment separator 13 one after another.
[0035]
In the sediment separating apparatus 13, since the sieve portion is vibrated by the sieve vibrating portion 75, while the sediment is conveyed rightward in FIG. 1 on the first sieve conveyor 71, sludge and water are sieved. It is dropped and falls on the second sieve conveyor 73 below. The stones and sand left on the first sieve conveyor 71 are conveyed rightward in FIG. 1, and are stacked on a sand truck, for example, via a sand discharge outlet 79 and a sand discharge chute 109, for example, on a dump truck.
[0036]
On the other hand, the sludge and water that have fallen on the second sieve conveyor 73 are conveyed rightward in FIG. 1 on the second sieve conveyor 73, where the water is sieved and the water in the lower storage tank 15 is removed. It falls into the primary sedimentation tank 83A. The sludge remaining on the second sieve conveyor 73 is conveyed rightward in FIG. 1 and is fed from the sludge discharge port 81 to the sludge input tank 87 via the sludge input port 85 of the sludge solidification and regeneration soil device 17.
[0037]
The water that has fallen into the primary sedimentation tank 83A of the storage tank 15 flows into the primary, secondary, and tertiary sedimentation tanks 83A, 83B, and 83C in order, and the fine sand contained in the water precipitates and becomes water. And the water in the tertiary sedimentation tank 83C is reused.
[0038]
In the sludge solidification / regeneration soil device 17, the first slide shutter 99 opens the communication port at the bottom of the sludge input tank 87, so that the sludge in the sludge input tank 87 falls to the sludge solidification stirring tank 91. Thereafter, when the first slide shutter 99 is closed, the sludge discharged from the sludge discharge port 81 later is deposited in the sludge input tank 87.
[0039]
The solidifying agent in the solidifying agent hopper 95 is injected into the sludge solidifying and stirring tank 91 by a predetermined amount through the solidifying agent introducing duct 97 by the solidifying agent hopper 95 with respect to the sludge introduced into the sludge solidifying and stirring tank 91. In the sludge solidification stirring tank 91, the sludge and the solidifying agent are sufficiently stirred by the stirring blades 89 rotationally driven by the stirring motor 93, and the sludge is solidified to generate regenerated soil.
[0040]
The generated reclaimed soil falls into the lower casing 111 of the auger 19 when the second slide shutter 101 opens the reclaimed soil discharge port at the bottom of the sludge solidification stirring tank 91. The soil is discharged outward from the discharge port 117 by a screw 115 that is rotated and driven by a drive motor 113. This reclaimed soil does not pose a problem like industrial waste and is reused for landfills.
[0041]
As described above, the earth removal treatment device 1 of the present invention is configured such that various devices are disposed on the device main body (frame) 5 so as to be capable of efficiently performing the earth removal treatment, and are integrally unitized to be compact. Since it can be easily installed or moved on the site, the installation work cost is low and a large space is not required. In particular, since the earth removal treatment device 1 of this embodiment is mounted on a traveling vehicle such as the truck 3, there is no need to install it on the site with a crane or the like.
[0042]
Furthermore, even if the excavation work is performed for a long period of time, when the work is not performed such as at night or in rainy weather, the work can be stored in, for example, a garage. Moreover, since sludge and the like are not left untreated, the problem of bad smell around the excavation work site is also solved.
[0043]
In addition, since the surroundings of the soil removal treatment device 1 mounted on the truck 3 can be covered by a soundproof wall or the like, the problem of noise is also eliminated. In addition, there is an effect that the work site is not cluttered.
[0044]
In the above-described embodiment, the description has been given by taking as an example the unloading treatment device 1 mounted on a traveling vehicle such as the truck 3. However, the unloading treatment device 1 simply unitized in the device main body (frame) 5. It does not matter. Even in this case, it can be easily installed on the excavation site, or can be easily moved, and the installation cost is low. It doesn't take up a lot of space, it doesn't get cluttered, and it looks good on the job site. Moreover, by covering the periphery of the earth removal treatment device 1 with a soundproof wall or the like, the problem of noise is also eliminated.
[0045]
The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.
[0046]
The sludge solidification regenerated soil device 17 including the solidifying agent hopper 95 shown by the two-dot chain line in FIGS. 1 and 2 can be arranged as shown in the figure. In this case, the sludge discharge port 81 of the sediment separation device 13 is adjacent to the sludge input port 85 of the sludge solidification and regeneration soil device 17, and the negative pressure tank 7, the continuous discharge pump 11, the sediment separation device 13, and the storage tank It becomes possible by arranging 15 various devices. Also in this case, the basic arrangement state for unitization is the same.
[0047]
【The invention's effect】
As can be understood from the above description of the embodiment of the invention, according to the invention of claim 1, various devices are arranged in the device main body so as to be able to efficiently perform the earth removal processing, and are integrally unitized to be compact. Because of this, it can be easily installed and moved to the excavation site, and the installation cost can be reduced. Also, a large space is not required. In addition, since it is made compact, the surroundings can be covered with a soundproof wall or the like, and the problem of noise can be eliminated. In addition, it does not become cluttered, and the appearance of the work site is improved.
[0048]
According to the invention of claim 2, since various devices are unitized in the device main body, the traveling vehicle equipped with the device main body only needs to move to the excavation site, and installation work by a crane or the like can be eliminated. . Further, even if the excavation work is performed for a long period of time, the time period during which the work is not performed can be stored in, for example, a garage, so that it does not hinder traffic. In addition, since sludge is not left untreated, the problem of bad smell around the work site can be solved.
[0049]
According to the third aspect of the present invention, a predetermined amount of the solidifying agent can be supplied to the sludge to be treated from the solidifying agent hopper. Further, the generated reclaimed soil can be efficiently discharged from the lower reclaimed soil transport device.
[Brief description of the drawings]
FIG. 1 is a front view of a state in which an earth removal device according to an embodiment of the present invention is mounted on a traveling vehicle.
FIG. 2 is a schematic plan view of FIG.
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a longitudinal sectional view of the continuous earth discharging pump.
FIG. 5 is a plan view of the continuous earth removal pump.
[Explanation of symbols]
1 Discharge treatment equipment 3 Truck (traveling vehicle)
5 Main unit (frame)
7 Negative pressure tank 9 Vacuum generator (vacuum pump)
11 Continuous earth removal pump 13 Sediment separation device 15 Storage tank 17 Sludge solidification regeneration soil device 19 Earth removal auger (regeneration soil transport device)
29 Sediment storage unit 49 Rotor 63 Blade plate 71 First sieve conveyor 73 Second sieve conveyor 79 Sands discharge port 81 Sludge discharge port 85 Sludge input port 87 Sludge input tank 91 Sludge solidification stirring tank 95 Solidifying hopper 99 First slide shutter 101 second slide shutter 109 sand taking-out shooter 117 discharging port

Claims (3)

A negative pressure tank for sucking excavated earth and sand, a vacuum generator for making the inside of the negative pressure tank a negative pressure, a continuous earth discharging pump for continuously discharging earth and sand in the negative pressure tank, A sediment separator that separates the sediment discharged from the earth removal pump into sand, sludge, and water, a storage tank that stores the water separated by the sediment separator, and the sediment separator separated by the sediment separator. And a sludge solidification reclaimed soil device for solidifying sludge to generate reclaimed soil and discharging the reclaimed soil, and a unit integrated with the device body to constitute a unit. 2. The apparatus according to claim 1, wherein a device main body in which the various devices are integrally united is provided in a traveling vehicle. 3. On the upper side of the sludge solidified regenerated soil device, a solidifying agent hopper for storing a solidifying agent is provided, and on the lower side of the sludge solidified regenerated soil device, a regenerated soil transport device for discharging the generated regenerated soil is provided. The earth removal treatment device according to claim 1 or 2, characterized in that:

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