JPH09192537A - Scrap iron removing device at concrete waste recycling plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently remove a scrap iron and thereby achieve an outstanding practical effect by providing a transport member which attracts the scrap iron from the surface of a conveyor for transporting a crushed material with the help of an attractive force by an electromagnet for attracting the scrap iron and dropping the scrap iron to a scrap iron recovery part remote from the magnet. SOLUTION: An electromagnet 19 for attracting a scrap iron is fixed on a rectangular suspension frame 12 in such a manner that the scrap iron is attracted to the lower surface on the lower lateral side 20 of a belt 17 by a magnetic force, and the attracted scrap iron is demagnetized and dropped at a remote place from an electromagnet 19. Next, a conveyor 18 having the electromagnet 19 for transporting the scrap iron is arranged below a bolt 7 for suspension located on the front left, front right and the rear left, rear right of the conveyor 18. In addition, the parts at the front left, front right and the rear left, rear right of the rectangular suspension frame 12 are respectively suspended on the hanging rings 6 of the bolts 7 for suspension respectively by chains 21. Thus, the scrap iron is attracted from a crushed material transferred by a conveyor 1 for transporting the crushed material and is demagnetized and dropped to a chute 22 for discharging the scrap iron alongside the conveyor 1 and remote from the electromagnet 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standard size which can be reused by crushing iron waste scrap mixed concrete waste material obtained by dismantling a reinforced concrete structure or the like into pebbles or boulders smaller than a predetermined size. The present invention relates to a magnet device for removing iron scraps, which is incorporated into a concrete waste material recycling plant for obtaining internally crushed stones and used for removing iron scraps by suction.

[0002]

2. Description of the Related Art Previously, the inventor of the present invention registered the utility model No. 30
As disclosed in Japanese Patent No. 18340, an iron scrap removing magnet device for sucking and removing iron scraps, that is, an electromagnet is fixed in a space surrounded by a driving wheel, a driven wheel and a belt via a gate-shaped frame. By the magnetic force of this electromagnet, iron scraps are adsorbed from the crushed material moving by the crushed material feed conveyor to the lower surface of the lower side of the belt, and the iron scraps are released at the place where this adsorption point retreats from the electromagnet. Provided is an apparatus for removing iron scraps on a chute for discharging iron scraps.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The apparatus for removing iron scraps described in the above-mentioned prior art includes a crushed material feed conveyor for transporting crushed materials containing iron scraps, and a crushed material feed conveyor for the crushed material feed conveyor. It is provided in a fixed state in parallel at a predetermined interval, the crushed material conveyed by the crushed material feeding conveyor is large, or the crushed material to be sent is gathered to one side and the height of its swelling is high. Is getting higher,
When the tip of the rebar scraps jumps out high, a haphazard accident is often caused, and the recovery work to resolve this accident may be interrupted and extra work is required. Although it is advantageous that the distance between the moving iron scrap and the electromagnet is close, it is irrational that it cannot be changed according to the amount of crushed material to be transported. , It is advantageous and rational for the lower surface on which iron scraps are adsorbed to slope the state where the entering side is high and the exit side is low, in order to eliminate or reduce the above-mentioned quiet accidents. There was a problem such as inconvenience that it could not be adjusted.

An object of the present invention is to provide a novel iron scrap removal device in a concrete waste material recycling plant, which has been devised to eliminate the above-mentioned defects and problems.

[0005]

Means for Solving the Problems In order to achieve the above object, an iron scraps removing apparatus in a concrete waste material recycling plant according to the present invention is provided with a crushed material feed conveyor for transferring crushed materials containing iron scraps. Front left, front right, rear left, rear right suspension members with a length adjustment section arranged via a frame above, and front left, front right, rear left, rear right locations for these suspension members A hanging frame, and a magnet for iron scraps provided as an arrangement close to the upper surface of the crushed material feeding conveyor in the hanging frame, and provided in the hanging frame as a state of moving around the magnet. It is composed of a conveying member for adsorbing iron scraps on the lower surface from the crushed material feed conveyor by the attraction force of the magnet and for dropping the adsorbed iron scraps to the iron scrap collecting portion at a position apart from the magnet.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in the figure, the lower part of a crushed material feed conveyor 1 for conveying crushed material mixed with iron scraps produced by dismantling a reinforced concrete structure, etc., obliquely upward from below. A gate-shaped frame 2 is erected upright over the same portion, and a pair of left and right beams 3, which are parallel to the feeding direction, are located above both sides of the crushed material feeding conveyor 1 in this frame 2. 4 are provided in a crossing manner, and at the front and rear portions of each of the left and right beams 3 and 4, a height-adjustable hanging bolt 7 with a hanging ring 6 is provided by twisting a nut 5. Also, separately from this, the rectangular suspension frame 12
A driving wheel (drive source is not shown) 13, a driven wheel 14, and a pair of guide rollers 15 and 16 are supported by a belt 17 with fins 11 around them, and a conveyor 18 for feeding iron scraps is provided. And a driving wheel 13, a driven wheel 14, and a belt 1 in the iron scrap feeding conveyor 18.
An electromagnet (electric wiring is not shown) 19 is inserted into the space surrounded by 7, and the electromagnet 19 is attached to the rectangular suspension frame 12 by the magnetic force of the electromagnet 19 and the lower side 20 of the belt 17 The iron dust is adsorbed on the lower surface of and the iron dust is adsorbed on the lower surface of the electromagnet 19 and released. Next, the iron scrap feeding conveyor 18 with the electromagnet 19 is arranged below the hanging bolts 7 on the front left, front right, rear left and rear right, and the front left, front right and rear of the rectangular suspension frame 12 are arranged. The left and right rear parts are hung by the chains 21 on the suspension rings 6 of the respective hanging bolts 7, so that iron scraps are adsorbed from the crushed material moving by the crushed material feeding conveyor 1 and the adsorption points are electromagnets. The iron scraps are released at a place where the user retreats from 19, and the iron scraps are dropped onto the iron scrap discharge chute 22 provided on the side of the crushed material feed conveyor 1.

The present invention may be carried out in a configuration in which the magnet is a permanent magnet and the conveying member is a rotating drum provided on the suspension frame.

[0008]

As described above, the device for removing iron scraps in the concrete waste material recycling plant according to the present invention is arranged via the frame on the crushed material feed conveyor for transferring the crushed material in which the iron scraps are mixed. Front left, front right, rear left, rear right suspension members with length adjustment parts installed, and suspension frames that suspend front left, front right, rear left, rear right parts on these suspension members. , The iron scraps suction magnet provided in the suspension frame as an arrangement close to the upper surface of the crushed material feed conveyor, and the suspension frame provided in the suspension frame in a state of moving around the magnet, to the lower surface by the attraction force of the magnet The crushed material feeding conveyor is characterized by comprising a conveying member for adsorbing iron debris from the crushed material feeding conveyor and dropping the adsorbed iron debris to the iron debris collecting section at a location apart from the magnet. Present in the crushed material during transportation by Although there is a remarkable effect that debris can be removed efficiently by utilizing the suction force of the magnet is, of course, particularly the front left,
By individually adjusting the length of the front right / rear left / rear right suspension members, the direction of the surface on which the iron scraps are adsorbed can be arbitrarily adjusted to the forward rising state, the backward rising state, the upper left state or the upper right side. It is possible to make it into a state, the crushed material conveyed by the crushed material feeding conveyor is large, the crushed materials sent are gathered in one direction and the height of the rise is high, the tip of the iron scraps It is possible to secure the optimum orientation according to the situation where the object is popping out high, that is, the orientation that reliably or sufficiently fulfills the iron scrap removal function in a state where a barking accident does not occur or is difficult to occur. It has an excellent practical effect of sufficiently achieving the intended purpose.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a partially cut-away side view.

[Explanation of symbols]

 1 crushed material feeding conveyor 2 frame 3, 4 beam 5 nut 6 hanging ring 7 hanging bolt 11 fin 12 hanging frame 13 driving wheel 14 driven wheel 15, 16 guide roller 17 belt 18 iron scrap feeding conveyor 19 electromagnet 20 lower side Side 21 Chain 22 Choke for discharging iron scraps

Claims (1)

[Claims] 1. A crushed stone within a standard size that can be reused by crushing iron waste scrap-mixed concrete waste material obtained by dismantling a reinforced concrete structure, etc. into pebbles or boulders smaller than a predetermined size Used for being incorporated into a concrete waste material recycling plant of No. 1 with a length adjustment unit installed via a frame on a crushed material feed conveyor that conveys crushed material containing iron scraps・ Front right / rear left / rear right suspension members, and suspension frames with front left / front right / rear left / rear right portions suspended on these suspension members, and the above-mentioned crushed material feed to this suspension frame A magnet for iron scraps provided as an arrangement close to the upper surface of the conveyor for
Iron scraps are adsorbed on the lower surface from the crushed material feed conveyor by the suction force of the magnets provided on the suspension frame so as to move around the magnets, and the adsorbed iron scraps are separated from the magnets. An iron scrap removal device in a concrete waste material recycling plant, characterized in that it comprises a conveying member for dropping it to a recovery section.