JP3639503B2 - Sediment modifier supply equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention excavates by excavation such as excavation earth and sand when excavating the road surface for embedding or repairing pipes such as water and sewage and gas, electricity and telephone, etc., and excavation earth and sand during tunnel construction. Sediment modifiers for landslide reformers that add lime, cement, or other sediment modifiers to the excavated sediments, stir them to modify the excavated sediments, and produce improved soil for use as backfill materials again The present invention relates to an earth and sand modifier supply device provided with a cone-shaped bag opening on the upper surface of a screen provided in the supply device.
[0002]
[Prior art]
Excavation earth and sand, etc. that come out when excavating road surfaces etc. for embedding or repairing pipes such as water and sewage, gas, etc., which are conventionally called construction residual soil, etc. A large amount of construction waste is generated. Conventionally, these construction surplus soils have been processed by being transported and buried in mountainous areas near the work site or relatively close seaside.
[0003]
However, it has become difficult in recent years to secure a suitable site for landfill, and the cost required to transport the construction surplus soil to a distant place also requires a large amount of money. However, due to environmental restrictions on landfills, it is difficult to simply transport the construction surplus soil to the mountains and the seaside as before.
[0004]
It is only necessary that the construction surplus soil can be landfilled on-site at the excavation work site, but once construction has been excavated, gravel, sludge, asphalt fragments, rock fragments, concrete fragments, etc. are mixed, In addition, when used as a backfill material, the particle size of the soil is uneven and the cohesion between the soil particles is degraded, and even if this is reused as the reclaimed soil for excavation grooves in the roadbed, It is difficult to obtain the necessary support force.
[0005]
For this reason, the excavated sediment generated at the work site cannot be used as it is for the landfill, so new high-quality soil required for landfill is purchased and transported to the work site to be landfilled. doing. However, if the excavated sediment generated as excavated construction soil once is excavated as such, it is merely a waste. However, since it is effectively used again as a material by reforming it, the excavated sediment is used. 2. Description of the Related Art There are various known excavation and sediment reforming apparatuses for modifying excavated sediment by adding sediment modifiers such as lime and cement to the soil.
[0006]
As shown in FIG. 1, the excavated earth and sand reforming apparatus includes an excavated earth and sand crushing apparatus 1, an earth and sand modifying material supply apparatus 4, and a mixing and agitating apparatus 3. Further, under the excavated earth crushing device 1 and the upper part of the mixing and agitating device 3, the excavated earth and sand under the sieve which has been crushed by the crushing device of the excavated earth and sand crushing device 1 and reduced to a certain size or less by the sieving device are mixed and stirred. A belt conveyor 2 for transporting and supplying to the apparatus 3 is arranged, and an upper part of the mixing and stirring apparatus 3 is provided with an earth and sand modifier supply apparatus 4 for supplying and supplying an earth and sand modifier such as lime and cement. Yes. In the lower part of the mixing and agitating device 3, the modified soil discharged again as a material after mixing and stirring the excavated sediment and the sediment modifying material is discharged onto the belt conveyor 5 and conveyed to the stock yard 6. It is used as landfill for reclaimed land that has been reformed and regenerated.
[0007]
As shown in FIGS. 6 and 7, the earth and sand modifier supply device 4 that supplies and supplies the earth and sand modifier to the mixing and agitating device 3 of the conventional excavated earth and sand reformer has a planar shape that is circular or square. A certain sandy wall part 7 and a sand and sand modifier discharge chute 10 are provided at the bottom part 8 following the sandy wall part 7, and a sand and sand modifier material inlet 9 through which the sand and sand modifier is carried is provided at the top of the peripheral wall part 7. ing. Near the bottom 8 inside the earth-and-sand modifying material supply device 4, a grid-like or ami-like screen 11 is provided, and an earth-and-sand modifying material discharge chute 10 having a shutter device is provided below it. By opening and closing the apparatus, the earth and sand modifier is sent from the earth and sand modifier discharge chute 10 to the mixing and stirring device 3.
[0008]
In addition, when the earth and sand modifying material such as lime and cement is introduced into the earth and sand modifying material supply device 4, a cloth bag called a flexible container bag (commonly referred to as a ton bag) containing about 1 ton of earth and sand modifying material. The body 14 is lifted by hanging a suspension hook 15 of a suspension rope of a conveying means such as a crane on a lifting rope 16 attached to a bag body 14 made of a soil and sand modifier supply cloth, and the earth and sand above the soil and sand modifier supply device 4 The material is loaded up to the reformer entrance 9, and the worker on the side cuts the bottom of the bag 14 made of the soil-and-sand-modified material for supplying the soil-and-sand modified material with a blade or the like. The earth and sand modifier is dropped from the bag body 14 into the earth and sand modifier supply device 4 and put in.
[0009]
In order to open the bottom of the bag 14 made of cloth, the apex 13 of the blade body is pointed upward on the screen 11 provided near the bottom portion 8 inside the earth and sand modifier supply device 4, and the lower portion thereof is radially formed. Four spreading blade bodies 12 are provided, and the cloth bag 14 is placed inside the earth and sand modifier supply device 4 from the earth and sand modifier inlet 9 at the upper part of the earth and sand modifier supply device 4 by a conveying means such as a crane. The cloth bag body 14 is suspended and brought into contact with the top of the blade body 12 by pressing the bottom of the cloth bag body 14. 4 or the like, the earth and sand modifier is introduced from the bottom of the bag 14 made of cloth.
[0010]
[Problems to be solved by the invention]
However, when carrying the sediment modifier into the sediment modifier feed port 9 at the top of the conventional sediment modifier supply device 4 and introducing the sediment modifier into the sediment modifier supply device 4, the sediment modifier is introduced. When an operator on the side of the bottom of the soil bag 14 for supplying the soil and sand improvement material containing the material is cut open with a blade or the like, the fabric bag 14 is placed inside the soil and sand modifier supply device 4. Since the bottom of the cloth bag body 14 is cut with a blade in a state where the cloth bag body 14 has not yet been completely inserted, the powdery soil-and-sand modifiers contained in the cloth bag body 14 are cut at once by this cutting. Since the whole amount falls, it may scatter around the earth and sand modifier supply device 4, which may temporarily deteriorate the surrounding environment, and there is a risk that a worker working nearby may inhale. .
[0011]
Also, the cloth carried into the earth and sand modifier supply device 4 at the apexes 13 of the four blade bodies 12 that spread radially on the screen 11 provided near the bottom 8 inside the earth and sand modifier supply apparatus 4. The bottom part of the bag 17 is pressed to open the bottom part of the cloth bag 17, and the earth and sand modifier stored in the cloth bag 17 is put into the earth and sand modifier supply device 4. Then, although the cloth bag body 17 is completely accommodated in the earth and sand modifier supply device 4, the cloth bag body 17 can be easily carried into the earth and sand modifier material supply apparatus 4. Since the diameter of the cloth bag body 14 is smaller than the opening width of the earth and sand modifier supply device 4, the peripheral wall portion 7 of the earth and sand modifier supply device 4 and the side surface of the cloth bag body 14 There is a gap 18 between them. There is a possibility that scattered around the device 4.
[0012]
Accordingly, the present invention has been made in accordance with the above-described problem, and the bag body carried into the inside of the earth and sand modifier supply device on the upper surface of the screen provided inside the earth and sand modifier supply device defined by the peripheral wall portion. A cone-shaped bag-opening body having a peripheral surface that pushes the bottom portion of the bag body against the inner peripheral surface of the peripheral wall portion, and the cloth-made bag is provided on the conical-shaped bag-opening body having the peripheral surface. The soil and sand modifier flows out from the bottom of the cloth bag body cut by pressing the bottom of the body so as to form the foot of Mt. Fuji along the circumferential surface of the cone-shaped bag opening body. And since this earth-and-sand reforming material which flows out presses the lower part opened of this cloth bag body against the peripheral wall part side of the earth-and-sand reforming material supply device, and makes it adhere, the peripheral wall side of the earth-and-sand reforming material supply device side The lower portion of the cloth bag body that is always pressed and adhered to the cloth serves as a lid that prevents the earth and sand modifier from scattering even if the cloth bag body is lifted in this state, It is an object of the present invention to provide a soil and sand modifier supply device that eliminates a gap in which the powdery soil and sand modifier is scattered between the cloth bag and the peripheral wall portion of the soil and sand modifier supply device.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention is provided in the sediment modifier supply device of the sediment reformer, provided in the sediment modifier supply device defined by the peripheral wall portion . On the upper surface of the screen, a cone-shaped bag opening body having a peripheral surface that breaks through the bag body carried into the inside of the earth and sand modifier supply device and presses the lower portion of the bag body against the inner peripheral surface of the peripheral wall portion is provided. It is characterized by this.
[0014]
In order to achieve the above object, the invention according to claim 2 of the present invention is characterized in that the cone-shaped bag-opening body has a shape corresponding to the planar shape of the earth and sand modifier supply device. Is. In order to achieve the above object, according to the third and fourth aspects of the present invention, the planar shape of the earth and sand modifier supply device is a circle or a quadrangle, and the cone shape has the peripheral surface. The bag opening body is a cone or a quadrangular pyramid.
[0015]
In order to achieve the above object, the invention according to claim 5 of the present invention is such that the inner diameter or inner width of the earth and sand modifier supply device is substantially the same as the outer dimension of the introduced earth and sand modifier bag. It is characterized in that it is formed 10% larger than the above.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a sediment modifier supply device for excavated sediment modifier of the present invention will be described below with reference to the drawings. FIG. 1 is an overall layout diagram of an excavated earth and sand reforming apparatus, FIG. 2 is a longitudinal sectional view of an earth and sand modifying material supply apparatus using a conical bag opening body having a peripheral surface of the present invention, and FIG. 4 is a schematic plan view in which a cone-shaped bag opening body having a surface is provided on the upper surface of the screen, FIG. 4 is a flow state diagram of the earth and sand modifier, and FIG. 5 is a square pyramid opening bag having a peripheral surface. It is the schematic plan view provided in.
[0017]
Explaining the overall layout of the excavated earth and sand reforming apparatus of the present invention, the excavated earth and sand crushing apparatus 1 and the earth and sand modifying material supply apparatus 4 as described above with reference to FIG. It consists of a mixing and stirring device 3. Further, under the excavated earth crushing device 1 and the upper part of the mixing and agitating device 3, the excavated earth and sand under the sieve which has been crushed by the crushing device of the excavated earth and sand crushing device 1 and reduced to a certain size or less by the sieving device are mixed. A belt conveyor 2 for conveying and supplying to the stirring device 3 is disposed, and at the lower part of the mixing and stirring device 3, the modified excavated sediment and the earth and sand modifying material mixed and stirred are discharged as materials again. The soil is discharged onto the belt conveyor 5, transported and accumulated in the stock yard 6, and reused as reclaimed reclaimed soil such as modified and reclaimed excavation grooves such as a roadbed.
[0018]
Next, the earth and sand modifier supply device of the excavated earth and sand reforming apparatus of the present invention will be described with reference to FIGS. Reference numeral 4 denotes an earth and sand modifier supply device, and FIGS. 2, 3 and 4 show an embodiment in which the horizontal cross-sectional shape is circular. FIG. 5 shows an embodiment in which the earth and sand modifier supply device 4 has a quadrangular horizontal cross-sectional shape.
[0019]
A sediment modifier inlet 9 is provided at the top of the peripheral wall portion 7 of the sediment modifier 4 to which the sediment modifier is introduced. Then, the lower part of the peripheral wall portion 7 of the earth and sand modifier supply device 4 includes a bottom part 8 following this and a earth and sand modifier discharge chute 10 for discharging the earth and sand modifier having a shutter device following the bottom part 8. A lattice-shaped screen 11 is provided at a connection portion between the peripheral wall portion 7 and the bottom portion 8 that follows, and a conical bag opening body 19 having a peripheral surface is formed on the upper surface of the central portion of the screen 11. Is provided. The screen 11 is not necessarily limited to the connection portion between the peripheral wall portion 7 and the bottom portion 8, and may be provided below the peripheral wall portion 7 or above the bottom portion 8. Further, the screen 11 is not necessarily limited to a lattice-shaped screen, and may be a screen or a type in which rods are arranged in parallel.
[0020]
Next, as described above, the earth and sand modifier is supplied to the earth and sand modifier supply apparatus 4 provided with the cone 19 having a circumferential surface at the center of the upper surface of the lattice-shaped screen 11 having a circular horizontal cross section as described above. A case will be described in which the earth and sand modifier is introduced through the stored bag 14 made of the earth and sand modifier supply cloth.
[0021]
The bag 14 made of cloth for supplying the soil and sand modifier is carried into the interior of the soil and sand modifier supply device 4 from the earth and sand modifier inlet port 9 at the top of the soil and sand modifier supply device 4 by a conveying means such as a crane. The There is a gap 18 between the inner peripheral surface of the peripheral wall portion 7 of the earth and sand modifier supply device 4 and the outside of the bag 17 made of the earth and sand modifier supply cloth carried into the earth and sand modifier supply apparatus 4. The bottom of the bag body 17 is suspended until it presses against the apex 20 of the cone 19 provided on the upper surface of the screen 11 inside the earth and sand modifier supply device 4.
[0022]
Since the apex 20 of the cone 19 is pointed, the apex 20 of the cone 19 breaks through the bottom of the bag body 17 carried into the earth and sand modifier supply device 4 to open an opening hole. The bottom of the bag body 17 is lowered to the upper surface of the screen 11 while sliding on the circumferential surface of the cone body 19 while further opening an opening hole formed in the bag body 17 by the cone body 19.
[0023]
Then, the earth and sand modifying material stored in the bag body 17 has a downward force due to its own weight, and slides down along the circumferential surface of the cone 19 so that the inside of the peripheral wall portion 7 of the earth and sand modifying material supply device 4 is reduced. A side force toward the circumferential surface is generated. It flows out just to form the foot of Mt. Fuji. Then, the outflowing earth and sand modifying material presses the lower part of the cloth bag body pressed against the peripheral wall portion side of the earth and sand modifying material supply device, and causes the bag body 17 to be in close contact with the side force. Is pressed against the inner peripheral surface of the peripheral wall portion 7, so that the inner peripheral surface of the peripheral wall portion 7 of the earth and sand modifier supplying device 4 and the lower portion of the bag body 17 are in close contact with each other. The gap 18 between the peripheral wall 7 of the four and the bag body 17 is closed.
[0024]
When the bag body 17 in such a state is lifted upward by a conveying means such as a crane, the bottom of the bag body 17 is perforated by the apex 20 of the cone 19 so that the opening is opened. The sediment modifier is unloaded from the bottom of the bag body 17 into the sediment modifier supply device 4. The lower portion of the cloth bag body 17 that is always pressed and adhered to the peripheral wall portion 7 side of the earth and sand reforming material supply device 4 is not changed even if the cloth bag body 17 is lifted in this state. The peripheral wall of the earth and sand modifier supply device 4 that acts as a lid to prevent the scattering of the material and always acts by the lateral force of the earth and sand modifier when sliding down along the circumferential surface of the cone 19 of the earth and sand modifier. Since it is pressed against the inner peripheral surface of the portion 7, the gap 18 formed between the bag body 17 and the inner peripheral surface of the peripheral wall portion 7 is closed and put into the earth and sand modifier supply device 4. The formed powdery earth and sand modifying material is lifted without generating a gap for scattering into the atmosphere.
[0025]
For this reason, as usual, four blades that radiate are provided on the screen provided inside the earth and sand modifier supply device, and the earth and sand put into the earth and sand modifier supply device by the four blade bodies. The bottom of the bag body made of the cloth for modifying material supply is opened, and the earth and sand modifying material is introduced into the earth and sand property modifying material supply apparatus from the bottom. The earth and sand modifier does not scatter into the atmosphere from the earth and sand modifier inlet of the upper part of the earth and sand modifier supply device through the gap between the two sides.
[0026]
The earth and sand modifier supplied to the inside of the earth and sand modifier supply device is unloaded and deposited on the bottom portion 8 of the earth and sand modifier supply device 4 through the grids of the lattice-shaped screen 11. Then, the mixture is fed into the mixing and agitating device 3 by opening and closing the sediment modifier discharging chute 10 for discharging the sediment modifier having a shutter device.
[0027]
Further, in the above description, the case where the horizontal cross-sectional shape of the earth and sand modifier supply device is circular and a cone having a peripheral surface is provided on the upper surface of a lattice-like screen provided therein, as shown in FIG. The same effect can also be achieved when the earth and sand modifier supply device has a quadrangular horizontal cross-sectional shape and a square pyramid 21 having a peripheral surface on the inner screen upper surface.
[0028]
In other words, the bottom of the bag 17 made of cloth for supplying earth and sand modifier suspended and carried inside the earth and sand modifier supplying device 4 is formed by the apex 22 of the quadrangular pyramid 21 provided on the upper surface of the screen 11 and having a peripheral surface. When the soil-and-sand modifying material opened in the hole and slid down along the four circumferential surfaces of the quadrangular pyramid 21 gives a lateral force to the lower part of the bag 17. Since it always presses against the inner peripheral surface of the peripheral wall portion 7 of the earth and sand modifier supply device 4, the earth and sand modifier introduced into the space between the bag body 17 and the inner peripheral surface of the peripheral wall portion 7 is It is lifted without creating a gap for scattering in the atmosphere.
[0029]
As described above, the earth and sand modifier supply device of the present invention has the bottom of the bag body made of the earth and sand modifier supply cloth storing the earth and sand modifier on the upper surface of the screen provided inside the earth and sand modifier supply apparatus. By providing a cone-shaped bag opening body having a peripheral surface for opening,
Sediment modifiers are applied to the peripheral surface of the cone-shaped bag opening body by pressing the bottom of the cloth bag body against the peripheral surface of the cone-shaped bag opening body from the bottom of the cloth bag body. Along the way, it will flow out just to form the foot of Mt. Fuji.
[0030]
Moreover, since the dimensional ratio between the inner diameter or inner width of the earth and sand modifier supply device and the outer dimension of the introduced earth and sand modifier bag is set to about 1: 1 or 1.1: 1, the earth and sand whose bottom is cut open The lower portion of the reformer bag body is pressed and adhered to the peripheral wall portion side of the earth and sand modifier supply device by the earth and sand modifier that flows out. The lower portion of the cloth bag body that is always pressed and adhered to the peripheral wall portion side of the earth and sand modifier supply device prevents the earth and sand modifier from scattering even if the cloth bag body is lifted in this state. Acts like a lid, eliminates the gap between the cloth bag body and the peripheral wall of the earth and sand modifier supply device, and disperses the powdery earth and sand modifier into the interior of the earth and sand modifier supply apparatus. When the earth and sand modifier is fed by the bag body made of the earth and sand modifier supply material containing the earth and sand modifier, the peripheral wall portion of the earth and sand modifier supply device and the bag body made of the earth and sand modifier supply cloth Prevents the sediment modifier from scattering from the gaps formed between them.
[0031]
【The invention's effect】
As described above, the earth and sand modifier supply device of the present invention is carried into the earth and sand modifier supply device on the upper surface of the screen provided in the earth and sand modifier supply device defined by the peripheral wall portion. By providing a cone-shaped bag opening body having a peripheral surface that breaks through the bottom of the bag body and presses the lower portion of the bag body against the inner peripheral surface of the peripheral wall portion, the peripheral surface of the cone-shaped bag opening body is provided. Along with pushing the earth and sand modifier in the bag body of the earth and sand modifier supply cloth to the peripheral wall side of the earth and sand modifier supply apparatus, the bag body made of the earth and sand modifier supply cloth is pushed Since there is no gap for the powdery soil modifier to scatter from the soil modifier supply device when opening the bag, the soil modifier is stored inside the soil modifier supply device. When the earth and sand modifier is introduced by the cloth bag for the earth and sand modifier supplied, From the gap generated between the parts and sediment modifier supply cloth bag can be prevented from scattering sediment modifier.
[Brief description of the drawings]
FIG. 1 is an overall layout of an excavation and sediment improvement device,
FIG. 2 is a longitudinal sectional view of an earth and sand modifier supply device using a conical bag-opening body having a circumferential surface according to the present invention;
FIG. 3 is a schematic plan view in which a conical bag opening body having a peripheral surface is provided on the upper surface of the screen;
[Fig. 4] Flow diagram of sediment modifier
FIG. 5 is a schematic plan view in which a quadrangular pyramid opening body having a peripheral surface is provided on the upper surface of the screen;
FIG. 6 is a longitudinal sectional view of a conventional earth and sand modifier supply device using a blade opening body of a blade,
FIG. 7 is a schematic plan view in which an opening body of a blade body is provided on the upper surface of a screen.
[Explanation of symbols]
1 excavation earth and sand crushing device, 2 belt conveyor, 3 mixing and stirring device,
4 Sediment modifier supply device, 5 belt conveyor, 6 stockyard,
7 peripheral wall part, 8 bottom part, 9 earth and sand modifier inlet,
10 earth and sand modifier discharge chute, 11 screen, 12 blades,
13 Top of blade body, 14 Bag body for supplying earth and sand modifier, 15 Lifting hook,
16 Lifting rope,
17 Sediment modifier supply bag carried into the sediment modifier supply device,
18 Crevice, 19 Opening body of cone having circumferential surface,
20 apex of a cone opening body, 21 a pyramid opening body having a circumferential surface,
22 The apex of the open body of the quadrangular pyramid.

Claims (5)

In the earth and sand modifier supply apparatus of the earth and sand reformer, the bag carried into the earth and sand modifier supply apparatus is broken through the upper surface of the screen provided in the earth and sand modifier supply apparatus defined by the peripheral wall portion. In addition, a sediment improvement material supply device for a sediment improvement device, comprising a cone-shaped bag opening body having a peripheral surface that presses a lower portion of the bag body against an inner peripheral surface of the peripheral wall portion . 2. The earth and sand modifier supply device of the earth and sand reformer according to claim 1, wherein the cone-shaped bag opening body having the peripheral surface has a shape corresponding to a planar shape of the earth and sand modifier supply device. . The earth and sand of the earth and sand reforming apparatus according to claim 2, wherein the earth and sand reforming material supply device has a circular planar shape, and the cone-shaped bag-opening body having the peripheral surface is a cone. Reformer supply device. 3. The earth and sand reformer according to claim 2, wherein a planar shape of the earth and sand modifier supply device is a quadrangle, and the cone-shaped bag-opening body having the peripheral surface is a quadrangular pyramid. Sediment modifier supply equipment. 5. The inner diameter or inner width of the earth and sand modifier supply device is formed to be approximately 10% larger than the outer dimension of the earth and sand modifier bag to be charged. The earth and sand modifier supply device of the earth and sand reformer described.

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