JP2002066529A - Recycling device for waste concrete utility pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the recycling device of a concrete utility pole, in which the recycling processes of the concrete utility pole can be integrated and simplified, the number of components can be reduced, facility cost can be reduced, operation is facilitated, operability is improved, environmental countermeasures such as sound proof and dust proof can easily be taken, and which can be operated without being affected by weather and the like can be installed in a building. SOLUTION: The recycling device is provided with a rack 1 storing a plurality of waste concrete utility poles P in an assembled state, a transportation means 2 transporting the utility poles P carried out from the rack 1 in stored posture in the length direction, a cutting/crushing means 3 cutting the carried utility poles P containg reinforcing bars into appropriate lengths and crushing them, a secondary crushing means 6 which successively crushes the individual utility pole pieces which are cut and crushed and selection means 8 and 9 removing reinforced concrete while sorting the crushed stones and sand, which are secondarily crushed. Then, the crushed stones, sand and reinforcing bars are sorted and collected by cutting the waste concrete utility poles P by a specified unit length and crushing them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for recycling used concrete electric poles (also referred to as "waste concrete electric poles", hereinafter abbreviated as "cone poles" in the present specification).

[0002]

2. Description of the Related Art In general, a con pillar has a length of about 12 to 16 m,
It has a maximum diameter of about 550 mm, and is widely used as a support for electric wires, telephone lines, broadcast lines (cable TV, etc.), and also for various supports.

[0003] When the above-mentioned con pillar is used due to aging or rearrangement, it is usually a long object, so that the internal rebar is also cut short together, and is usually landfilled together with concrete waste generated at the time of cutting. It is.

However, the number of places for landfill processing has been reduced, and new processing forms have been sought, and recycling has been attempted as one of them. Since the pillars are made of iron, sand, gravel, and cement, such as reinforced concrete and some scaffolding hardware,
This is because crushed stone, sand, and reinforcing steel (steel scrap) can be completely recycled, and all collected items can be reused as useful materials. In particular, sand is considered to be heavily used.

[0005] In view of the above, the following is a conventional method of recycling the column. First, (b) as a preliminary crush, the end of the con column is crushed with a hydraulic press type beak-shaped crusher to expose the reinforcing bar at the end of the con column, (b)
The conveyer conveys it to a press for primary crushing, where it is crushed at the time of feed stop while intermittently feeding the conveyer column in its longitudinal direction, and the concrete mass and sand are dropped under the press. ) When the primary column has been crushed by the primary press over the entire length of the con pillar, the concrete mass, sand and reinforcing bars are sent to the secondary crusher jaw crusher on the conveyor, and crushed by this jaw crusher so that the crushed stones are less than the standard size. (D) If the reinforcing bar is not completely exposed even with the crusher of (c), the reinforcing bar is completely exposed through a roller crusher, and (e) the reinforcing bar is sent to a reinforcing bar cutting machine for cutting, while (f) the above The crushed stone that has fallen below each press is sifted through a vibrating sieve to separate it into sand and crushed stone of the standard size.

[0006] In addition to the above, a technique of crushing the entire length of a concrete column at once by using a powerful roller crusher as a primary crusher and omitting the rebar exposing process at the end of the concrete column without performing preliminary crushing has also been performed. However, each of these treatment methods is a type of processing a whole con column, so it is necessary to install a crusher in a size corresponding to the length of the con column, and the entire recycling apparatus becomes large. There are difficulties.

[0007] In the former method, the former is sent one by one along the longitudinal direction of the column in order to pre-crush the tip of the column. Is also one by one in the same transport form as above,
In addition to the problem that the arrangement of the equipment that forms each processing step becomes long, the processing is performed with the column at the original length. However, there is also a problem that when the rebar is left for the entire length, concrete pieces tend to remain on the rebar, and it takes time to process (crush) the rebar.

Further, in the above-mentioned recycling system, since a large number of devices are used, not only each operation or connection operation becomes complicated, but also the equipment cost is easily increased, and the arrangement length of the entire system is increased. It is practically impossible to store this recycling system in a building because of its large size. Therefore, not only is it impossible to work in rainy weather and snowfall, but it is difficult to take protective measures against noise, dust, etc. outdoors. There are also incidental problems.

[0009]

SUMMARY OF THE INVENTION Therefore, the present invention consolidates and simplifies the recycle process of a column, reduces the number of devices used, reduces equipment costs, facilitates handling during operation, and improves operability. It is another object of the present invention to provide a recycle apparatus for a con-column which is easy to take environmental measures such as soundproofing and dustproofing, and is capable of building equipment which can be operated without being affected by weather or the like.

[0010]

SUMMARY OF THE INVENTION An object of the present invention, which has been made to solve the above-mentioned problems, is to provide a column-recycling apparatus according to the present invention, which comprises a stand for storing a plurality of waste concrete electric poles in an assembled state, and a storage posture from the stand. Transport means for transporting the electric pole drawn out as it is in its length direction, cutting and crushing means for cutting the incoming electric pole together with its rebar into appropriate lengths and crushing, and individual cut and crushed electric pole pieces Secondary crushing means for crushing waste concrete, and sorting means for removing secondary crushed stone and sand while removing the cutting rebar. By doing so, crushed stone, sand, and reinforcing bars are separated and collected.

[0011] The recycling apparatus of the present invention, in the above configuration, except for the gantry and a part of the transport means, by arranging the remaining equipment in the building, enables processing in all weather, and By implementing soundproofing and dustproofing measures for each building, it is possible to realize easily and effectively.

[0012] In the above structure, a water spraying means for dust prevention may be arranged at a required place such as around the conveyor, and may be attached and detached above the conveyor after the secondary crushing means as a means for separating and collecting cut rebars and the like. In some cases, a flexible magnet is arranged. Further, when it is desired to collect a large amount of sand, the sorting means may be arranged in two or more stages.

As measures against noise and vibration in the above, while improving the hermeticity of the building, anti-vibration measures are taken on the installation base of the equipment. As a measure against dust, it is preferable to provide a water spray shower at a location where dust easily occurs, such as an entrance and an entrance of a crusher, and an entrance and exit of a sorting machine, and to provide a ventilation means. In this case, if the water in the shower is circulated and used through an appropriate filtration means, no drainage problem occurs.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a recycling apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram for explaining the structure of the apparatus of the present invention, and FIG. 2 is a perspective view for explaining the structure of a primary crusher.

In FIG. 1, reference numeral 1 denotes a stand for accumulating a large number of conveyor pillars P, which is formed at a height capable of storing the conveyor pillars in accordance with the height of a conveyor 2 described later. Reference numeral 2 denotes a roller conveyor arranged as an example of a conveying means for feeding the conveyor columns P accumulated on the gantry 1 along the length direction of the conveyor columns P. It is positioned inside the building to be connected to the cutting and crushing means (described later) in the next step. The rollers 2a located inside the building of the conveyor 2 are provided with a feed driving force.
Further, a gate-shaped press guide 2b for regulating the conveyor column P from above is provided on the front end side of the conveyor 2.

Reference numeral 3 denotes a press machine as cutting and crushing means for cutting the con column P sent by the conveyor 2 to an appropriate length together with the internal rebar and sequentially crushing the cut con column pieces. The one illustrated in FIG. 2 is used.

In FIG. 2, the press 3 is arranged in a direction perpendicular to the feed direction of the column P, and the frame F
A cutting crush table portion 3a also serving as a fixed blade and a crush table integrally formed with the cutting blade 3a, and a cutting crush operation portion 3b formed by a cutting blade and a crush block provided in a beak shape with respect to the table 3a so as to move up and down. The drive cylinder 3c of the part 3b, the extrusion block 3d for pushing forward the cut and crushed object and the drive cylinder 3e thereof,
The guide portion 4 receives the cut and crushed concrete piece and the reinforcing bar piece and supplies the piece to the first belt conveyor 5 disposed below.

In the above description, the guide portion 4 has a drop hole 4a formed at the bottom of the cutting and crushing pedestal portion 3a and a slit-shaped drop hole 4b disposed outside the base portion 3a (outside the forward end of the extrusion block 3d). And an openable / closable wall 4c surrounding the saucer portion 4b. The concrete power pole is cut and crushed by the cutting and crushing base portion 3a, and is extruded. The concrete piece and the rebar piece extruded forward by the block 3d are inserted into the pit 4a.
And 4b are dropped and supplied to the first conveyor 5 arranged below. In addition, most of the cutting rebar is extruded block 3d
It is pushed out and passes through the above-mentioned pit 4a and accumulates in the slit-shaped pit 4b, so that the wall 4c of the guide part 4 is opened and taken out at any time. (Not shown) may be arranged.

A jaw crusher type secondary press machine 6 as secondary crushing means is provided at the tip end side of the belt conveyor 5.
Is arranged. The secondary press 6 uses an off-the-shelf product having a crank press type chewing function. Therefore, it is optional to use a press of another type and structure as the secondary press 6. In the secondary press 6, the concrete pieces and the reinforcing steel pieces cut and crushed by the primary press 3 are further finely crushed and crushed, and the size of the crushed concrete pieces becomes the standard size of crushed stone, for example, about 40 mm. To do. By passing through the press machine 6, the crushed pieces of the con columns P cut and crushed by the primary press machine 3 are almost completely separated into crushed stone, sand and cut rebar pieces.

Therefore, in the present invention, the above-mentioned crushed pieces are conveyed to the sieving means 8 by the second conveyor 7 while keeping them together. As the sieving means 8, a vibrating sieving machine having a two-stage sieving mechanism having different mesh sizes is used. Further, on a second conveyor 7 for transporting the crushed pieces to the sieving means 8, in a state of being floated from the transporting surface, a rebar and iron dust suction mechanism 9 in which magnets are arranged on the lower surface of a retractable plate is provided. Before the crushed pieces are supplied to the sieving means 8, the cut rebars and mixed iron chips are adsorbed and removed.

In the sieving means 8, a crushed stone conveyor 10 and a sand conveyor 11 are arranged under respective sieve nets, and the crushed stone and sand sieved by the sieving means 8 are stored in respective storage locations. Transport to Further, reinforced scraps and the like adsorbed by the adsorption mechanism 9 are:
When the mechanism 9 is retracted from the conveyor, the mechanism 9 is removed from the magnet and transported to a storage dedicated to iron chips. If you want to collect more sand, after the crushed stone conveyor 10,
Another stage may be provided with a sieve means (not shown).

Through the above steps, the concrete pillar P, that is, the waste concrete electric pole, can be almost completely separated into crushed stone, sand and reinforcing steel scrap.

In the recycling apparatus of the present invention, the following method is introduced as an environmental measure such as soundproofing, dustproofing, or vibrationproofing in each of the above steps. This will be described below. First, the primary and secondary presses 3 and 6 or the sieving means 8 generate a considerable processing noise because the processing operation target is a large solid object such as a cut piece of a concrete utility pole. Also, the machine vibration is large. Therefore, in the present invention, first, the devices from the press 6 to the sieving mechanism 8 are installed in a building (not shown).

As a result, most of the noise and dust can be kept indoors. In order to further enhance the effect, the bases of the presses 3 and 6 are provided with anti-vibration measures.
In addition, dust is prevented from floating by spraying water on the part where the dust is flying, and a local ventilation device is attached, and fine dust is removed by a bag filter or the like.

[0025]

As described above, the present invention contributes to the reduction of equipment costs by reducing the number of used equipment and consolidating and simplifying the entire apparatus. Recycling of concrete utility poles can be performed at any time regardless of the weather and season by forming most of the equipment so that it can be installed indoors, and the noise and dust scattering associated with the processing can be significantly reduced. This is very useful in industry.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram for explaining an example of an arrangement configuration of a recycling apparatus of the present invention.

FIG. 2 is a perspective view of a main part for describing a structure of a primary crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 2 Conveying means 3 Primary press machine 4 Guide part 5 First conveyor 6 Secondary press machine 7 Second conveyor 8 Sieving means 9 Adsorption means 10 Conveyor for crushed stones 11 Conveyor for sand

Claims (3)

[Claims] 1. A gantry for storing a plurality of waste concrete electric poles in an aggregated state, a conveying means for conveying the electric poles drawn out of the gantry in a storage posture in a longitudinal direction thereof, and Cutting and crushing means for cutting and crushing the rebar in an appropriate length, secondary crushing means for sequentially crushing each of the cut and crushed telephone pole pieces, crushed stone for secondary crushing,
It is equipped with a sorting means to remove the cutting rebar while sorting the sand, and to separate and collect the crushed stone, sand and rebar by cutting the waste concrete power pole to the required unit length and then crushing it. Characteristic recycling equipment for waste concrete utility poles. 2. The waste concrete utility pole recycling apparatus according to claim 1, wherein equipment disposed after the transport means connected to the gantry is installed in the building. 3. The recycling apparatus for waste concrete electric poles according to claim 1, wherein the cut rebar is adsorbed and removed by a detachable magnet provided above a conveyor connected to the secondary crushing means.