JPH0975772A - Method for classifying roof tile splinter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a classification method capable of exactly executing classification work for wooden pieces, etc., intruded into roof tile splinters with a simple device and easy operation and suppressing the amts. of the wooden pieces, etc., included into treating materials to the line of the permissible amt. at which the sufficient utilization as reclamation materials for forming land is possible. SOLUTION: This device has a water tank 1 into which the roof tile splinters are charged, a screw conveyor 3 which is installed in the bottom 2 of the water tank 1 and a water receiving tank 12 and circulating pump 13 for replenishing the water tank 1 with the water and circulating the water to the water tank. The settled objects 7 in the separated roof tile splinters charged into the water tank 1 are pushed up to one side of the water tank 1 and are taken out by the screw conveyor 3, by which the floating objects 8 in the roof tile splinters are allowed to flow over together with the replenishing water from the top edge of the water tank 1 to the other side and are taken out. The roof tile splinters are thereby classified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a debris sorting method and apparatus.

In this specification, particularly, rubble refers to an aggregate of so-called debris, stones, wood chips, etc., which are generated from a damaged site of a building in an ordinary urban block due to an earthquake or the like. Therefore, the molecules that make up the rubble are a mixture of all waste materials, including concrete materials, metal materials, wood, textile products, or chemical products, and the separation work of these is a mode of disposal or utilization of the rubble after the fact. Have a close relationship with. This invention is premised on a method of disposing rubble, in particular, in a state where the separated rubble can be used as a landfill material for land preparation, and for example, rubble suitable for use as a landfill material can be selected. The present invention relates to a sorting method and a device.

[0003]

2. Description of the Related Art A conventional method for separating debris focuses on the particle size of the aggregate such as the above-mentioned debris, stones, or wood chips, that is, the average size of the particles.
The material of the material forming the aggregate was rarely a problem. The reason for this is that most of the materials that make up the aggregates that have been treated so far are mostly occupied by inorganic rigid bodies, so that, for example, using this aggregate to create land If you do landfill work,
Even if a certain organic matter contained in the material happens to be corroded and decomposed, the volume thereof may change, but the amount of the corrosive material is almost insignificant in view of the total volume. It is only the amount, which did not adversely affect the land development work results.

As described above, in the conventional method for separating debris,
The emphasis is placed on keeping the size of the particles that make up the rubble constant, that is, by aligning the particles of the so-called particles, and as a means of separation, therefore, the method of separating the size by using a sieve is the mainstream. Had occupied. Fig. 4 shows an example of this, in which a crusher is installed in the middle of the flow of debris that has been thrown in to average the sizes of those that exceed the size of the sieve, and use multiple sieves to sort by size. It is shown as a plan view of the sorting device for performing. In the figure, the rubble carried into the receiving feeder A is crushed by the crusher B, the conveyor C, the magnetic separator D
Through the sieving machine E and the conveyor K according to the sorting particle size.
1, K2, K3, storage space M1, M2 for each size
The procedure for sorting and collecting in M3 is shown. In this case, an example is shown in which the size of the yard M1 is 20 or less, the size of the yard M2 is 20 to 40, and the size of the yard M3 is 40 to 80.

[0005]

When the above-mentioned conventional sorting method is carried out, when most of the material constituting the rubble is a rigid body made of an inorganic substance, as described above, this aggregate is used to land. Even if land reclamation work is carried out for land reclamation, there will be no adverse effect on the land reclamation work results. However, as a technical field to which the invention belongs, the debris targeted as described above is an aggregate of so-called rattles, stones, or pieces of wood generated from a ruin of a building in a normal urban block caused by an earthquake or the like. Therefore, when it comes to the fact that a large amount of wood chips, which are organic-based coarse materials, whose volume is greatly reduced by corrosion / decomposition is included in the constituent molecules, use this as landfill material for land reclamation. Will be impossible, and the effective use of debris will be blocked.

[0006] The apparatus of Fig. 4 includes an experiment for expecting some clue as to whether or not there is a relationship between the particle size of sieving and the mixing rate of wood chips with respect to the debris generated from the earthquake disaster. However, it was found from this experiment that the wood chip mixing rate tends to increase more markedly as the sieving particle size increases. In addition, as a expedient for rejecting the mixing of wood chips, air is blown from the side surface against the debris at the exit where the conveyor end is about to fall and toward the sieving yard. Although it was attempted to blow it off the point, it was extremely inefficient work unless there was a means to stop the wood itself from being carried on the same conveyor line in front of the conveyor. We were not able to achieve the expected results, and the conventional method of sorting based only on granularity was a form where the path of progress was blocked here.

The present invention has been made in view of the disadvantages of the above-mentioned conventional method, and the debris to be sorted is made of an aggregate of so-called debris, stones, or wood chips generated by an earthquake or the like. In particular, for debris in which a large amount of wood, etc. is contained in the constituent molecules, the volume of which greatly decreases due to corrosion / decomposition, the separation work of the wood etc. is extremely accurate with a simple device and easy operation. The object of the present invention is to provide a method and apparatus for separating rubble that can be used as a landfill material for land reclamation.

[0008]

[Means for Solving the Problems] As means for solving the above-mentioned problems, in the method for separating debris according to the present invention, a) debris in which a settling object and a floating object are mixed in a water tank filled with water Along with charging, the water in the water tank is poured to overflow the water in the water tank to agitate the debris in the water tank, and b) a sedimentation object that constitutes the debris and a floating object that precipitates at the bottom. , The bottom of the aquarium is moved uphill along the bottom surface of the aquarium by the rotation of a screw conveyor diagonally installed with height differences at both ends, and discharged outside the aquarium, c) By guiding the floating object to the water injected into the water tank and discharging it over the upper edge of the water tank and out of the water tank together with the water, the debris is separated into a settling object and a floating object, and each is taken out of the water tank. − Those who say It is.

According to a second aspect of the present invention, in the method for separating debris, a water receiving tank is provided and water stored therein is poured into the water tank by a circulation pump, and the floating object is carried over the water tank. It is preferable that the water overflowing beyond the edge is separated from the floating body and is returned to the water receiving tank.

A debris separating apparatus according to the present invention is installed diagonally with a height difference between A) a water tank for throwing in debris and B) a bottom portion of the water tank. A screw conveyor that gradually moves the settling material generated from the debris thrown in by operating in the uphill direction along the bottom of the water tank, and drains the settling object out of the water tank after draining,
C) Continuously supplying water to the water tank, water overflowing beyond the water tank upper edge together with the floating object, a tank for collecting the water separated from the floating object by guiding it onto the sieve, It has

According to a fourth aspect of the present invention, in the debris separating device, the separating device has a water receiving tank for storing water for circulation and a circulation pipe for feeding the water in the tank to the water tank. It is preferable to provide a pump.

According to the debris sorting method or apparatus of the present invention having the above-mentioned structure, the debris thrown into the water tank is
The debris is agitated in the water tank by the water flow generated by pouring water into the water tank and overflowing the water in the water tank to separate it into settling objects and floating objects, and by rotating the screw conveyor diagonally installed at the bottom of the tank. The settling material that has settled at the bottom of the water tank is discharged to the outside of the water tank. On the other hand, the levitating object is
The water injected into the water tank is guided and the water is discharged from the water tank over the upper edge of the water tank together with the water. When separated in this way, wood chips, etc. are definitely separated on the side of the floating object, and it is unlikely that they will be mixed on the side of the settling object, so reliable separation is performed, and as a result, this can be done, for example, in land development. Even when it is used as a landfill material, it can be applied to the application with confidence.

The sorting method according to claim 2 or claim 4
According to the sorting apparatus described, after the water in the water tank used for separating the rubble, especially the floating object, is collected in the tank and then circulated by circulating from the tank to the water tank, the amount of water to be supplied at the time of separation is small. Tesumi is economical.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the method and apparatus for separating debris according to the present invention will be described below with reference to the drawings.

FIG. 1 is an overall view showing an embodiment of a sorting apparatus according to the present invention, FIG. 2 is a plan view of a main portion of FIG. 1, and FIG. 3 is FIG.
It is a cross-sectional view taken along the line III-III.

As shown in FIGS. 1 to 3, a water tank 1 filled with water accommodates a screw conveyor 3 rotatably in an inclined bottom portion 2. The screw conveyor 3 is installed diagonally with a height difference between the positions of both ends, and is rotationally driven by a motor 4. Debris 6 thrown into the water tank 1 from the conveyor 5
Is stirred by a water flow generated in the water tank 1 (generated when water is poured into the water tank 1 from the outside and water in the water tank 1 overflows), and this is separated into a settling object 7 and a floating object 8. The separated sedimented body 7 gradually becomes the bottom 2 of the water tank.
Are settled and accumulated on the bottom surface, and are moved upward along the bottom surface by the pushing action of the screw blades of the screw conveyor 3. Then, after being pushed up to the upper part of the water surface and draining water, the settling object 7 taken out from the take-out port 9 is received by the conveyor 10 and accumulated in the incombustible material storage area 11. The settling object 7 can be further classified in stages according to the size (particle diameter) by using a conventional classification device (FIG. 4).

A water receiving tank 12 stores the circulating water to be supplied to the water tank 1, and the circulation pump 13 and the supply pipe 1 are provided.
4 continuously supplies water to the aquarium 1. 1
Reference numeral 5 denotes an overflow outlet, and the excess water in the water tank 1 supplied by the water flows together with the floating object 8 floating on the water surface and flows out from the overflow outlet 15 onto a sieve frame plate 16 provided outside. Here, the water is collected in the lower water receiving tank 12, and the drained floating object 8 is guided to the sieving frame plate 16 and the combustible material storage area 1
Collected in 7. The enclosure plate 18 is provided at a height across the water level in the water tank 1 so that the floating object 8 can be moved by the screw conveyor 3
It acts as a baffle to protect the exposed parts of the water from drifting.

In order to separate the rubble into a sedimented object and a levitated object by the rubble separating apparatus constructed as described above, the rubble 6 which has been selected to have an appropriate particle size by removing a non-standard size in advance is used. Water tank 1 filled with water by conveyor 5
Put into the water from the top of the. The water in the water tank is driven by the rotation of the screw conveyor 3 or the water receiving tank 1
Since the circulating water system belonging to No. 2 is continuously flowing, the injected debris is immediately and automatically separated by the specific gravity of the components, and the settling object 7 is formed at the bottom 2 of the water tank 1 and screwed. The floating object 8 floats above the water surface as the sorting progresses, as it sinks toward the groove that encloses the conveyor 3. The settling object 7 settling in the groove in this state is gradually moved in the uphill direction along the bottom surface of the water tank by the rotational driving of the screw conveyor 3, and is discharged to the outside of the take-out port 9 after draining the water and is discharged to the upper surface of the conveyor 10. Can be posted. The conveyor 10 carries this to the incombustible material storage area 11 and deposits it. On the other hand, the floating object 8 that floats above the water surface is restrained in the direction of movement by the enclosure plate 18, while riding on the flow of running water that continuously overflows from the overflow outlet 15 by replenishing circulating water, and leans diagonally to the outside. It is placed on the sieve frame plate 16 that has been removed, where the water is drained and the water drops into the water receiving tank 12 below,
The floating object 8 passes over the sieve frame plate 16 and passes through the combustible material storage area 17
Accumulated in. During this time, the water in the water receiving tank 12 forms a circulating water system with the water tank 1 by the operation of the circulation pump 13, and performs the function of taking out the floating object 8 from the water tank and the function of accumulating the floating object 8 at a predetermined position. To do.

With respect to the composition of rubble treated here, it is not a big mistake to assume that the material that floats in water is mostly wood chips, and the material that sinks in water is mostly rattle or stone. I think that the. One of the effective treatment methods for rubble and one of its useful uses is the best way to use it as a landfill material for land reclamation. It is essential to maintain the state below the maximum allowable rate. According to the debris sorting method and apparatus of the present invention, it is possible to extremely easily and easily maintain a low wood contamination rate, and it is possible to contribute to an increase in efficiency regarding the treatment of debris.

[0020]

As is apparent from the above description,
INDUSTRIAL APPLICABILITY The debris separating method and apparatus of the present invention have the following excellent effects.

(1) With respect to debris containing a large amount of wood and the like, the separation work including the removal of the wood and the like can be performed extremely accurately by a simple device and easy operation, and as a result, the land It is possible to obtain a material that can be sufficiently used as a landfill material for construction. (2) The storage places for the different materials taken out by separating the rubble are separated from each other, which is convenient because it is possible to avoid intermingling during the processing and handling of the materials.

(3) In the sorting method according to claim 2 and the sorting device according to claim 4, after the water in the water tank used for separating the debris, particularly the floating object, is collected in the tank, and then the water is transferred from the tank to the water tank. Since it is recirculated and circulated, the amount of water to be replenished at the time of separation work can be small, and the running cost can be reduced.

[Brief description of drawings]

FIG. 1 is an overall schematic front view showing an embodiment of a sorting apparatus of the present invention, a part of which is shown in section.

FIG. 2 is a plan view of a main part of FIG.

3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a plan view showing an overall outline of a conventional general sorting apparatus.

[Explanation of symbols]

 1 Water Tank 2 Bottom 3 Screw Conveyor 6 Rubble 7 Settling Object 8 Levitating Object 12 Water Receiving Tank 13 Circulation Pump 14 Supply Pipe 16 Sieve Frame Plate

Claims (4)

[Claims] 1. A rubble in which a sedimentation object and a floating object are mixed is put into a water tank filled with water, and the water in the water tank is overflowed by pouring water into the water tank to agitate the rubble in the water tank. Then, of the settling objects and floating objects that make up the rubble, the settling object settling at the bottom of the water tank is rotated by a screw conveyor that is installed diagonally at the bottom of the water tank with a height difference at both end positions. By moving uphill along the bottom surface and discharging it out of the aquarium, the floating object is guided to the water injected into the aquarium and discharged outside the aquarium together with water beyond the upper edge of the aquarium. A method for separating rubble, characterized in that the rubble is separated into a settling object and a floating object and each is taken out of a water tank. 2. The method for separating debris according to claim 1, wherein a water receiving tank is provided and water stored therein is poured into the water tank by a circulation pump and overflows beyond the upper edge of the water tank together with the floating object. The method for separating debris according to claim 1, wherein the separated water is separated from the floating object and is recirculated to the water receiving tank. 3. A water tank into which debris is put, and a settling object generated from the debris put in by operating in water, which is installed diagonally with a height difference between the positions of both ends at the bottom of the water tank. Is gradually moved uphill along the bottom surface of the water tank, and a screw conveyor for draining the sedimented object out of the water tank after draining water, continuously supplying water to the water tank, and the water tank together with the floating object. A debris separation device, characterized in that it is provided with a tank for collecting the water that has overflowed beyond the upper edge and is guided to the top of the sieve to separate it from the floating object. 4. The debris separating apparatus according to claim 3, wherein the debris separating device comprises a water receiving tank for storing water for circulation and a circulation pump having a pipe for feeding the water in the tank to the water tank. Sorting device.