JPH10219736A - Soil treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of treatment by a method wherein soil having high viscosity in supplied excavating surplus soil is pierced to a projection and carried to a removing section, and removed from the projection in the removing section and discharged. SOLUTION: A soil supply section 1, in which an upper section is opened and from which soil is dropped to chains 52, and a soil discharging section 2, in which a lower section is opened and from which soil passed among the chains 52 is discharged to a lower section, are installed to a casing A, in which a plurality of the chains 52 mounted on a pair of gears 51 are juxtaposed at intervals. A large number of projections 53 are set up to the chains 52 and falling soil is pierced, and a driving device 54 is fitted and clay pierced to the projections 53 is carried to a removing section 4 on the conveyor terminal sides of the chains 52. A baffle plate 42 with a plurality of comb teeth is installed to the removing section 4 and clay is separated from the projections 53, and separated clay is recovered to a clay recovery section 6 and treated. A washing brush 43 is mounted and fine clay adhering on the projections 53 is removed. Accordingly, excellent soil having low clay content can be formed, and clay is sieved with superior workability and clay can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for treating soil, and more particularly, to an apparatus suitable for performing a process for reforming excavated soil.

[0002]

2. Description of the Related Art Conventionally, when excavated soil is generated during construction work of an underground building or underground piping, the excavated soil is discarded. In order to dispose of the surplus soil, methods such as ocean dumping and land reclamation are used, but there is no place for disposal every year,
At present, there is a need for a disposal method instead of waste disposal. In addition, after removing excavated soil by laying underground pipes, etc.
The amount of sediment that can be used at this time is decreasing year by year, and it is becoming difficult to obtain good quality soil, and the excavated soil is being reused for backfilling.

[0003]

However, when the excavated soil is used for backfilling, there is a problem that the excavated soil is easily reduced in volume after backfilling. When it was returned, the backfilled ground sank and formed an uneven shape, and although it passed over the backfilled, it sometimes became an obstacle. Therefore, it is considered necessary to improve the compaction performance (capacity maintenance performance when weight is applied to the excavated soil) by performing processing such as adjusting the particle size of the excavated soil (making it uniform). . Therefore, it is enforced that the excavated residual soil is subjected to a sieving process with a sieving device or the like, but the excavated residual soil sometimes includes a material having a high viscosity, and such an excavated residual soil is passed through a sieve. Not only is it difficult to adjust the particle size, but also the soil with high viscosity blocks the sieve, which may adversely affect the treatment of soil with no problem in viscosity. There is a problem that a great deal of labor has to be paid for the processing of

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for reusing an excavated soil, which is difficult to perform even if the excavated soil contains highly viscous soil which is likely to have an adverse effect. And to provide a technology for efficient processing.

[0005]

The features of a soil treatment apparatus according to the present invention for achieving this object will be described with reference to the drawings. A soil supply section 1 for supplying soil and a soil discharge section for discharging soil. A part 2 is provided, a piercing part 3 for piercing the projection 53 with the supplied soil is provided, and a removing part 4 for separating the soil piercing the projection 53 from the projection 53 is provided and removed from the piercing part 3. A soil removal mechanism 5 for transporting the soil stabbed to the projection 53 to the part 4 is provided. The soil removing the soil stabbed from the projection 53 is removed from the projection 53 at a position different from the soil discharge part 2. It is preferable that the removing section 4 is formed by providing a removing mechanism.

More specifically, a chain 52 rotatably mounted around a pair of gears 51 rotatable about a horizontal axis.
Are arranged in parallel at intervals in the direction of the rotation axis of the gear 51, and the soil supply unit 1 is formed so as to drop and supply the soil to the plurality of chains 52, and projects radially from the chain 52. A plurality of projections 53 are provided to form the piercing portion 3 so that the falling soil can be pierced and operated.
It is preferable to provide a driving device 54 for driving the rotation to form the transport removal mechanism, and to form the soil discharge portion 2 so that the soil passing between the chains 52 can be dropped and discharged downward. In the above configuration, it is more preferable that a baffle plate 42 having a plurality of comb teeth 41 is provided, and the comb teeth 41 of the baffle plate 42 are interposed between the chains 52 to form a soil removing mechanism.

[0007] As a different form, a conveying device 55 is provided which is configured to be able to convey soil in a mounted state, and a soil supply section 1 and a soil discharging section 2 are formed.
The protrusion 53 is provided so as to be capable of stabbing the upper soil, and the protrusion 53 is retracted from the transporting device 55 so that the protrusion 53 is stabbed into the soil. On the other hand, it is preferable that the piercing portion 3 is formed by providing the piercing device 30 for transferring the pierced state of the projection 53 from the transport path B of the transporting device 55 to the outside. A belt conveyor or a roller provided with a large number of projections
It is more preferable that the piercing device 30 is configured by being provided above the transport device 55 in a posture that allows the belt conveyor to move back and forth, and if the belt conveyor is provided in an inclined position with respect to the transport device 55, Further, it is desirable that the belt feeding direction of the belt conveyor and the soil transport direction of the transport device 55 be different from each other in plan view.

Further, in any of the above-described embodiments, it is preferable that a cleaning section 44 capable of cleaning the projection 53 is provided.

The drawings are merely used for reference, and the present invention is not limited to the drawings.

[Effects] That is, the soil supply unit for supplying the soil and the soil discharge unit for discharging the soil are provided, and the piercing unit for piercing the projection of the supplied soil is provided. The protrusion pierces the soil by supplying the soil from the part and operating the protrusion to pierce the soil. At this time, the fine particles of the soil are discharged to the soil discharge portion without being caught by the protrusions. In addition, among the large particles, those having a low viscosity are usually crushed and crushed while the projections are pierced, and are discharged into the soil discharging portion as small particles. However, the soil having a high viscosity (hereinafter, abbreviated as clay) among the soil pierces the projections and is captured as it is. Here, among the clays, the larger the size of the clay, the higher the probability of being caught by the protrusions, and the more the clay is more inconvenient in soil modification, the easier it is to be caught. In addition, a removal unit for separating the soil pierced into the projection from the projection is provided, and a transport removal mechanism for transporting the soil pierced to the projection from the piercing unit to the removal unit is provided. Can be collected separately from the soil conveyed from the piercing portion to the removing portion and discharged to the soil discharging portion. Furthermore, at this time, even if the captured clay is conveyed to the removal unit, it is difficult to separate from the protrusions,
It is conceivable that the collection may be difficult, but if the soil removal mechanism is provided at a position different from the soil discharge part to remove soil pierced into the projection from the projection, and the removal part is formed, The clay is forcibly recovered by the soil removing mechanism to the removing unit.

[0011] Therefore, clay is effectively removed from the soil,
Good quality soil with low clay content can be obtained, and when sieving is performed for the purpose of adjusting the particle size for reuse, good workability, smooth treatment and soil modification can be performed. As a result, soil that had been a problem because of its difficulty in being reused can now be easily re-used with little effort, not only reducing the cost of civil engineering work but also discarding conventional soil. The negative effects on the environment that had been occurring can now be eliminated.

More specifically, a plurality of chains rotatably mounted around a pair of gears rotatable about a horizontal axis are arranged side by side at intervals in the direction of the rotation axis of the gears. Is formed so as to drop and supply the soil to the plurality of chains, and a plurality of radially projecting protrusions are provided on the chain to pierce the falling soil so as to operably pierce the chain. By dropping and supplying the soil from, it is possible to configure the clay to pierce the protrusions only by the impact force due to the gravity drop of the soil, and to obtain the above-described operation with a simple configuration, The soil passed between the chains can be configured to be of high quality with the clay removed. At this time, hard and large soil components are placed between the chains and removed from the high-quality soil as they are placed. It is also possible to prevent the inconvenience that the large lumps hinder the sieving operation. Here, since the transport removing mechanism is formed by providing a driving device for rotationally driving the chain, the soil passing between the chains is configured to be able to freely drop and discharge to the soil discharging portion formed below, The clay stabbed in the projection is conveyed from the stab to the removal unit with the rotation of the chain, so that the clay can be collected separately from the high-quality soil. Further, at this time, if a baffle plate provided with a plurality of comb teeth is provided, and if the soil removal mechanism is formed by interposing the comb teeth of the baffle plate between the chains, the clay conveyed by the chain is: Although the chain collides with the baffle plate, the chain passes through the baffle plate and passes through the baffle plate, so that the protrusion provided integrally with the chain is provided with a pulling force that is pulled out from the clay. It is possible to provide a configuration in which even the clay which tends to remain pierced in the removing section can be easily removed and collected by the removing section.

Further, as a different form, there is provided a transport device configured to be able to transport the soil in a state of being placed thereon, and a soil supply portion and a soil discharge portion are formed so that the soil on the transport device can be stabbed freely. The projection is provided, and the projection is retracted with respect to the transport device, the projection is stabbed against the soil, and the projection stabbed against the soil is transported along the transport path of the transport device. If the piercing portion is formed by providing a piercing device for transferring from the outside to the outside, while the drop impact due to gravity was used as a force for piercing clay in the soil in the above configuration, the piercing device The projection pierces the soil conveyed in the shape of the transport device with the moving force of the projection to move back and forth with respect to the transport device, and captures and removes the clay by capturing the clay. Configuration and will, it is possible the position of and the projections and the soil Hisuru to the previous configuration to recover configured to be able to clay even in the upside-down relationship.

In the above construction, a belt conveyor or a roller provided with a large number of projections radially projecting therearound is provided above the transporting device in such a manner that the projections can move back and forth on the transporting path, and the piercing device is provided. If it is configured, the piercing operation can be easily performed, and if the belt conveyor is provided in an inclined posture with respect to the transport device, the protrusions approach while maintaining a predetermined angle with respect to the transport device. This is preferable because the piercing operation is easily performed and the piercing state is easily maintained when performing the piercing operation. Further, if the feeding direction of the belt of the belt conveyor is different from the soil transport direction of the transport device in plan view, the removing unit in the above configuration is formed so as to be displaced from above the transport device. And the clay can be removed and recovered more reliably.

Further, in any of the above-described embodiments, if a cleaning portion capable of cleaning the projections is provided, it is possible to prevent the fine clay from gradually accumulating on the projections and adversely affecting the projections.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a soil treatment apparatus according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 3, the soil treatment apparatus of the present invention is provided with a soil supply unit 1 for supplying soil and a soil discharge unit 2 for discharging soil, and pierces the supplied soil with a projection 53 to perform an operation. A piercing portion 3 is provided, and a removing portion 4 for separating the soil pierced into the projection 53 from the projection 53 is provided at a position different from the soil discharging portion 2 to remove the soil piercing the projection 53 from the projection 53. A removal mechanism is provided and formed, and a transport removal mechanism 5 that transports the soil pierced into the protrusion 53 from the piercing section 3 to the removing section 4 is provided.

Hereinafter, a more detailed example will be described in detail. <1> As shown in FIG. 1, a chain 52 rotatably mounted around a pair of gears 51 rotatable about a horizontal axis.
Are arranged side by side in the casing A at intervals in the direction of the rotation axis of the gear 51. The casing A is opened at the upper side, and formed so that the soil conveyed by a belt conveyor or the like is dropped and supplied to the plurality of chains 52, and the soil supply unit 1 is provided. The soil discharging portion 2 is formed so that the soil passing between the chains 52 can be freely dropped and discharged downward. The chain 52
A driving device 54 is provided with a plurality of projections 53 projecting radially to pierce the falling soil so as to operably pierce the soil and to drive the chain 52 to rotate.
The transport removing mechanism 5 for transporting the clay pierced into the projection 53 to the removing section 4 formed on the transport terminal side of the chain 52 is formed. FIG.
As shown in FIG. 3, a soil removing mechanism 40 comprising a baffle plate 42 provided with a plurality of comb teeth 41 is provided, and the comb teeth 41 of the baffle plate 42 are interposed between the chains 52 to transfer the clay to be conveyed. Are arranged so that they can be separated from the protrusion 53.
The removing section 4 is provided with a cleaning brush 43 for removing fine clay adhered to the projections 53 and a cleaning section 44 capable of cleaning the projections 53. The clay removed by the removal unit 4 is recovered by the clay recovery unit 6,
The soil is discharged separately from the soil discharged to the soil discharge unit 2.

<2> As shown in FIG. 3, a transport device 55 configured to be capable of transporting soil in a state of being placed thereon is provided, and a soil supply unit 1 is formed on the upstream side of the soil transport, and on the downstream side of the soil transport. The soil discharge part 2 is formed. A piercing device 30 is constructed by providing a belt conveyor having a large number of projections projecting radially around the conveying device 55 in an inclined position above the conveying device 55. The piercing device 30 is provided above the transport device 55 in a posture in which the protrusion 53 can move back and forth in the transport path B, and
5, the projection 53 is provided so as to be able to pierce the soil on the surface 5, and the projection 53 is retracted from the transporting device 55 so that the projection 53 is pierced into the soil. The projection 53 in a piercing state is disposed so as to be transferable to the removing unit 4 formed above the transport path B of the transport device 55, and the piercing device 30 and the transport device 55 in the transport path B are A piercing portion 3 is formed between them. The removing unit 4 is provided with a rotating brush 45 for removing the clay trapped by the projection 53 from the projection 53, and the rotating brush 45 is provided on the opposing surface between the transport device 55 and the rotating brush 45. The soil removing mechanism is configured so as to be rotatable so as to move in a direction opposite to the belt feeding direction of the belt conveyor. The clay removed here is collected by the clay recovery unit 6 and is processed separately from the soil discharged to the soil discharge unit 2.

The feed direction of the belt of the belt conveyor and the soil transfer direction of the transfer device 55 may be different from each other in a plan view, and a cleaning unit 44 capable of cleaning the projection 53 is provided. You may. Further, a roller may be used instead of the above-mentioned belt conveyor, and it is sufficient that the clay pierced into the protrusions is configured to be easily transported.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a soil treatment apparatus according to an embodiment <1>.

FIG. 2 is a perspective view of a main part of a soil treatment apparatus according to the embodiment <1>.

FIG. 3 is a schematic diagram of a soil treatment apparatus according to Embodiment <2>.

[Description of Signs] 1 soil supply unit 2 soil discharge unit 3 piercing unit 4 removal unit 5 transport removal mechanism 51 gear 52 chain 53 protrusion 41 comb tooth 42 baffle plate 43 cleaning brush 44 cleaning unit

Claims (9)

[Claims] 1. A soil supply unit for supplying soil and a soil discharge unit for discharging soil, a piercing unit for piercing and operating a projection with respect to the supplied soil, and the soil piercing the projection from the projection. A soil treatment apparatus provided with a removing unit for separating, and a transport removing mechanism for transporting soil pierced into the projection from the piercing unit to the removing unit. 2. The soil treatment apparatus according to claim 1, wherein a soil removal mechanism is provided at a position different from the soil discharge section to remove soil pierced into the projection from the projection, and the removal section is formed. . 3. A plurality of chains rotatably mounted around a pair of gears rotatable about a horizontal axis are arranged in parallel at intervals in the direction of the axis of rotation of the gears, and The chain is formed so as to drop and supply the soil, the chain is provided with a number of projections projecting radially, the falling soil is pierced to form a piercing portion, and a drive device for rotating and driving the chain is provided. The soil treatment device according to any one of claims 1 to 2, wherein the soil removal unit is formed by forming the transport removal mechanism so that soil passing between the chains can be freely dropped and discharged downward. 4. The soil treatment apparatus according to claim 3, wherein a baffle plate provided with a plurality of comb teeth is provided, and the comb teeth of the baffle plate are interposed between the chains to form a soil removal mechanism. 5. A transport device configured to be capable of transporting soil in a mounted state is provided, a soil supply unit and a soil discharge unit are formed, and the protrusion is provided to pierce the soil on the transport device so as to be freely operable. At the same time, the projection is moved back and forth with respect to the transport device, and the projection is stabbed against the soil, and the projection stabbed against the soil is transferred to the outside from a transport path of the transport device. The soil treatment device according to any one of claims 1 to 2, wherein a piercing device is provided to form the piercing portion. 6. A piercing device, wherein a belt conveyor or a roller provided with a large number of projections radially projecting therearound is provided above the transporting device in such a manner that the projections can move back and forth on the transporting path to constitute the piercing device. The soil treatment device according to claim 5, wherein 7. The soil treatment apparatus according to claim 5, wherein the belt conveyor is provided in an inclined posture with respect to the transport device. 8. The soil treatment apparatus according to claim 5, wherein a feed direction of the belt of the belt conveyor and a soil transfer direction of the transfer device are different in plan view. 9. The soil treatment apparatus according to claim 1, further comprising a washing unit capable of washing the projection.