JP2002086007A - Crushing system, sorting and feeding apparatus and moving sorting and feeding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crushing system reducing an installation area by reducing the number of parts of conveyors and a moving and feeding apparatus. SOLUTION: The crushed matter manufacturing system is provided with a self-propelling crusher 100 crushing a material to be crushed and having a main conveyor 6 for feeding the crushed material out of a crusher main body 4, a sieve device 201 for sorting the crushed material fed out by the main conveyor 6 while feeding the same to feed the crushed material with a set particle size or more to one side and a sorting feed apparatus 200 equipped with a conveyor 202 for feeding the crushed material with a particle size below the set particle size, sorted by the sieve device 201, to the other side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushed material production system provided with a self-propelled crusher, and more particularly, to a crushed material having a particle size smaller than a predetermined particle size (crushed product). TECHNICAL FIELD The present invention relates to a crushed material production system that is loaded separately from non-products, a sorting / conveying device used for the system, and a self-propelled sorting / conveying device.

[0002]

2. Description of the Related Art In recent years, self-propelled crushers and other self-propelled recycle product production machines have been promoted under the background of the promotion of waste recycling such as the enforcement of the Recycling Resources Promotion Law (so-called Recycling Law) (October 1991). The place of success is expanding.

[0003] Self-propelled crushers are various types of large and small rocks, construction waste materials, industrial wastes, etc. generated at construction sites such as concrete lump taken out when dismantling buildings and asphalt lump discharged during road repair. Crushed material) as a recycled material, a traveling means, a hopper as a receiving means for receiving the crushed material, a crushing device for crushing the received crushed material, and a crushed material received by the hopper. A crusher main body having a feeder to be conveyed to the crusher, a conveyor for carrying out the crushed material crushed by the crusher to the outside of the crusher main body, and a crusher provided above the conveyor and being conveyed on the conveyor. It has a magnetic separator and the like for magnetically attracting and removing magnetic substances contained in the objects.

[0004] Japanese Patent Application Laid-Open No. Hei 9 (1998) -94 discloses a sorter for sorting crushed materials crushed by the above-mentioned self-propelled crusher according to particle size.
There is one described in -155224. In this prior art, a self-propelled crusher that crushes a crushed object by a crushing device and carries out the crushed material outside the main body by a primary conveyor, and receives the crushed material carried out by the primary conveyor. A vibrating sieve that sorts according to the particle size, a secondary conveyor that conveys the crushed material having a size equal to or smaller than the set particle size in the primary conveyor unloading extension direction, and a crushed material that is larger than the set particle size that is sorted by the vibrating sieve. A self-propelled sorter having a tertiary conveyor that discharges in substantially the opposite direction is disclosed.

[0005] According to the above-mentioned prior art, according to the particle size, the crushed material having a size smaller than the set particle size (crushed product) can be clearly separated and loaded from the crushed material having a size larger than the set particle size (non-product). .

[0006]

However, the above prior art has the following problems. Since the 1990s, the amount of construction waste and industrial waste generated has been increasing year by year. However, with the encouragement of recycling such as the enforcement of the cycle law mentioned above, even at smaller construction sites in urban areas, There is an active movement to actively introduce self-propelled crushers and crush rocks, construction waste materials, industrial wastes, and the like at the site. Under such a tendency, when crushing work is performed in a narrow operating place such as a building demolishing site in an urban area, for example, a self-propelled crusher and a crushed material crushed by the self-propelled crusher according to the particle size. In many cases, it is not always possible to sufficiently secure the area for installing a crushed material production system including a sorting machine for sorting, and it is required to reduce the installation area of the crushed material production system. However, in the above-described conventional technology, two conveyors, the secondary conveyor and the tertiary conveyor, are required in addition to the primary conveyor provided in the self-propelled crusher. A long installation space is required, and as a result, it becomes difficult to reduce the installation area of the crushed material production system. The present invention
The present invention has been made in view of the above-described problems of the related art, and has as its object to reduce the number of conveyors to reduce the installation area, a crushed material production system, a sorting and conveying device used therefor, and a self-propelled sorting and conveying device. It is to provide a device.

[0007]

Means for Solving the Problems (1) In order to achieve the above object, a crushed material production system of the present invention crushes a crushed material, and carries out the crushed crushed material outside the crusher main body. A self-propelled crusher having one conveyor, a sorting device with a transport function for sorting the crushed material carried out by the first conveyor while transporting the crushed material having a set particle size or more to one side, and A sorting / conveying device including a second conveyor for conveying the crushed material having a particle size smaller than the set particle size selected by the sorting means to the other side.

For example, a crushed object put into a self-propelled crusher by a hydraulic shovel or the like is crushed by a crushing device after being received by, for example, a hopper, and crushed by a first conveyor. It is carried out of the machine body. However, at this time, since the degree of crushing varies depending on the hardness and type of the crushed material, crushed materials having a particle size larger than the target particle size may partially exist. In the crushed material production system of the present invention, a sorting and conveying device is provided separately from the self-propelled crusher, and the crushed material carried out by the first conveyor is introduced into the sorting means of the sorting and conveying device. The sorting means also has a transport function, for example, by a sieve extended with an inclination, while sorting the introduced crushed material to one side while sorting the crushed material of a set particle size or more and a crushed material of less than a set particle size, The crushed material having the set particle size or more is conveyed to the one side. At this time, the crushed material having a particle size smaller than the set particle size is introduced into the second conveyor from the sorting means with the transport function, and is transported to the other side by the second conveyor. In this way, the crushed material can be separated and loaded on one side and the other side according to the particle size, so that the crushed material (crushed product) having a size larger than the set particle size (target particle size) is smaller than the set particle size. It can be clearly separated from things (non-products) and high quality can be achieved. Here, each of the conveyors requires a relatively long installation space, but in the present invention, since the sorting means also has a transport function as described above, the number of the self-propelled crusher can be increased. In addition to the first conveyor of the sorting and conveying device, a new conveyor that is newly required separately from the first conveyor is sufficient, and compared with the conventional structure that requires two conveyors separately from the first conveyor of the self-propelled crusher. Can be reduced. Therefore, the area required for installing the conveyor can be reduced, and as a result, the installation area of the entire crushed material production system can be reduced.

(2) In the above (1), preferably,
The sorting means includes a sieve disposed at an upper portion of the second conveyor with an inclination.

In general, when a sieve is used as a screening means, its screening function (sieving efficiency) tends to increase as the screen (so-called screen portion) is longer. In the present invention, the sieve is provided with an inclination on the upper part of the second conveyor (for example, extends in the transport direction of the second conveyor (that is, in the longitudinal direction of the conveyor)), so that the sieve distance is sufficiently long. Therefore, even if the sieve is not vibrated using the driving force (= so-called fixed sieve), a sufficient sorting function can be ensured. Therefore, for example, since the required power can be reduced as compared with the case of using a vibrating sieve, for example, when the vibrating sieve obtains power from the self-propelled crusher side, it is not necessary to apply power to the vibrating sieve. The power source mounted on the self-propelled crusher can be downsized. As a result, it is possible to reduce the size of the entire self-propelled crusher, which can also reduce the installation area of the entire crushed material production system.

(3) In the above (2), more preferably, the sorting and conveying device is arranged such that the sieve is inclined downward in a direction away from the tip of the first conveyor.

(4) In the above (3), more preferably, the sieve conveys the one crushed material with a downward inclination from an intermediate portion in the longitudinal direction of the sorting and conveying device to one end in the longitudinal direction. The second conveyor is extended along the conveying direction of the second conveyor, and the second conveyor removes the other crushed material by ascending from the one end in the longitudinal direction to the other end in the longitudinal direction. It is extended to carry.

(5) In the above (1) to (4), preferably, the crushed material having the set particle size or more conveyed to the one side by the sorting means is introduced into the self-propelled crusher. It further has a third conveyor for conveying to the hopper.

[0014] Thereby, for example, a crushed material which is larger than a set particle size and cannot be turned into a crushed product as it is can be again fed into the self-propelled crusher via the third conveyor and crushed again, thereby improving the recycling rate. be able to. Further, by repeating such a circulating of the crushed material, all of the crushed material initially put into the hopper can be reduced to a particle size smaller than a set particle size to obtain a crushed product, thereby achieving a recycling rate of 100%.

(6) In the above (1) to (4), preferably, the self-propelled crusher includes a hopper on one side in a longitudinal direction of the main body frame, and the first conveyor conveys the main body frame. The crushed material is discharged to the other side in the longitudinal direction.

(7) In order to achieve the above object, the sorting and conveying device of the present invention is a sorting means with a conveying function for sorting while receiving the crushed material and conveying the crushed material having a set particle size or more to one side. And a conveyor that conveys the crushed material having a particle size smaller than the set particle size selected by the sorting means to the other side.

(8) In order to achieve the above-mentioned object, the self-propelled sorting and conveying apparatus of the present invention comprises a traveling means and a sorting device which conveys the received crushed material while conveying the crushed material having a set particle size or more to one side. And a conveyor for transporting the crushed material having a particle size smaller than a set particle size selected by the sorting device to the other side.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a top view showing the overall arrangement of a crushed material production system according to an embodiment of the present invention.
1 is a side view showing the overall arrangement of an embodiment of a crushed material production system according to the present invention, as viewed from a direction A in FIG. 1. In FIG. 1, a hydraulic excavator (described later) for charging the crushed object is also illustrated so that the actual operation status can be easily understood.

1 and 2, the crushed material production system according to the present embodiment includes a self-propelled crusher 100 and a sorting and conveying device 200.

The self-propelled crusher 100 can be crushed by a working tool such as a bucket 401 of a hydraulic shovel 400 (= crushed material, for example, a concrete lump carried out when dismantling a building or asphalt discharged when repairing a road. Various large and small construction waste materials and industrial waste generated at construction sites such as lump, or rocks and natural stones mined at rock mining sites and face) are input to hopper 1 and hopper 1 that accept the crushed material. A crushing device (eg, a jaw crusher) 2 that crushes the received crushed material to a predetermined size and discharges the crushed material downward, and a crusher equipped with a feeder 3 that transports and guides the crushed material received in the hopper 1 to the crushing device 2. Machine body 4
A traveling body 5 provided below the crusher body 4;
A main conveyor 6 for receiving the crushed material crushed by the crushing device 2 and discharged downward, transporting the crushed material to the outside of the crusher main body 4 on the rear side of the self-propelled crusher (left side in FIGS. 1 and 2), and carrying out the main conveyor 6; A magnetic separator 7 is provided above the main conveyor 6 and magnetically sucks and removes a magnetic substance (rebar or the like) contained in the crushed material being transported on the main conveyor 6.

The running body 5 includes a main body frame 8 and left and right endless track tracks 9 as running means. The main body frame 8 is formed of, for example, a substantially rectangular frame, and has a crusher mounting portion 8A on which the crushing device 2, the hopper 1, and a power unit 34 described later are mounted, and the crusher mounting portion 8A and the left side. And a track frame section 8B for connecting the right crawler track 9 to the track. The crawler track 9 extends between a drive wheel 10 and an idler 11 rotatably supported by the track frame portion 8B, and a left and right traveling hydraulic motor 12 provided on the drive wheel 10 side. The self-propelled crusher is run by applying a driving force to the crusher.

The hopper 1, together with the feeder 3, is provided on one side in the longitudinal direction (the left-right direction in FIGS. 1 and 2) of the main body frame crusher mounting portion 8A (the front side of the self-propelled crusher, ie, FIGS. 1 and 2). 2 (right side in FIG. 2), and is mounted above the end portion, and is located almost directly above the feeder 3.

The crushing device 2 is located on the rear side (left side in FIGS. 1 and 2) of the crusher with respect to the hopper 1 and the feeder 3, and as shown in FIG. 8A is mounted on a substantially middle portion in the longitudinal direction. At this time, the driving force generated by the crushing hydraulic motor (not shown) is transmitted to a flywheel (not shown) via a belt (not shown), and the driving force transmitted to the flywheel is further known. The conversion mechanism converts the oscillating motion of a moving tooth (not shown) into a oscillating motion, and oscillates the moving tooth back and forth with respect to a fixed tooth (not shown). Is crushed to a predetermined size.

The feeder 3 is a so-called grizzly feeder.
The plurality of (two in this example) saw-tooth plates 3 on which the material to be crushed from the hopper 1 is placed by the driving force generated in
The bottom plate portion including a is vibrated. With such a structure, the objects to be crushed introduced into the hopper 1 are sequentially conveyed and supplied to the crushing device 2, and fine particles, fine earth and sand, etc. contained in the objects to be crushed during the conveyance are sawtoothed on the sawtooth plate 3a. Is dropped downward through a chute (not shown) through the gap, and is introduced onto the main conveyor 6. That is, the crushed material having a particle size smaller than the size of the gap between the saw teeth of the sawtooth plate 3a (a set particle size to be described later) is sieved to select the crushed material having a particle size larger than the size of the gap. In addition, the fine granules
Instead of introducing fine earth and sand into the main conveyor 6,
A side conveyor may be separately provided below the chute, and the chute may be discharged to the side of the self-propelled crusher. The main conveyor 6 circulates and drives the belt 6a by the hydraulic motor 20 for the main conveyor, thereby transporting the crushed material dropped onto the belt 6a from the crushing device 2 to the outside of the crusher main body 4. . Further, the main conveyor 6 has an arm member 1 whose transport side (in other words, the rear side of the crusher, the left side in FIGS. 1 and 2) is attached to a power unit 34 (details will be described later) via a support member 18.
9 and is suspended and supported. The portion on the non-transport side (the front side of the crusher, the right side in FIGS. 1 and 2) is located below the main frame crusher mounting portion 8A, and is supported via a support member (not shown) such as a bracket. It is supported so as to be hung from the body frame crusher mounting portion 8A. As a result, as shown in FIG. 2, the main conveyor 6 is disposed so as to rise obliquely in the carry-out direction (leftward in FIG. 2) in the space below the outer edge (rear end) 34a of the power unit 34. .

The magnetic separator 7 is suspended from and supported by the arm member 19 via a support member 21, and is disposed above the main conveyor belt 6a so as to be substantially orthogonal to the main conveyor belt 6a. Machine belt 7a
Is driven around the magnetic force generating means (not shown) by the magnetic separator hydraulic motor 22 so that the magnetic force from the magnetic force generating means acts through the magnetic separator belt 7a to attract the magnetic material to the magnetic separator belt 7a. After that, it is transported in a direction substantially perpendicular to the main conveyor belt 6a and dropped to the side of the main conveyor belt 6a.

FIGS. 3A and 3B are a top view and a side view showing a detailed structure of the sorting and conveying apparatus 200. FIG. 3 (a) and 3 (b), the sorting / conveying device 200 receives a crushed material carried out by the main conveyor 6 of the self-propelled crusher, and sorts the crushed material according to the particle size. And a conveyor 202 provided below the sieving apparatus 201, and as shown in FIG.
The conveyor 202 is arranged so that the conveying direction thereof projects in a direction perpendicular to the unloading direction of the main conveyor 6 of the self-propelled crusher 100.

The sieving apparatus 201 is provided so as to cover most of the upper part of the conveyor 202 as shown in FIG. The sieving apparatus 201 includes a pair of left and right screen frames 203, 203, a screen (sieving) 204 extended in the screen frames 203, 203 along the unloading direction of the conveyor 202, and a frame 207 of the conveyor 202. , 207 (described later) and supporting mechanisms 205a and 205b for supporting the screen frame 203, and a lead-out unit (chute unit) 206 for introducing, collecting, and leading out the crushed material flowing on the screen 204. ing.

At this time, the screen 204 has, for example, a lattice-like or net-like structure, and
00 in the direction away from the tip of the main conveyor 6 (upward in FIG. 1) from the middle portion in the longitudinal direction to one end in the longitudinal direction (upper end in FIG. 1, lower right end in FIG. 3A). The conveyor 202 is disposed so as to be inclined and extends along the conveying direction of the conveyor 202. Also this screen 20
4, based on the size of a gap (not shown) between the lattice-like or net-like structures, while transporting the crushed material crushed by the crushing device 2 of the self-propelled crusher 100 upward in FIG. It is classified into those that are smaller than the set particle size and those that are larger than the set particle size,
Those having a particle size smaller than the set particle size are dropped from the gap and guided to the conveyor 202, and those having a particle size larger than the set particle size are conveyed to the upper side in FIG. 1 and discharged. Here, the screening function (sieving efficiency) of the screen 204 has a property of increasing as the length thereof increases.
Is extended above the conveyor 202 in the transport direction (that is, in the longitudinal direction of the conveyor) and the sieving distance is sufficiently long, so that a sufficient screening function can be ensured even if the sieving is not vibrated using a driving force and the sieving is a fixed sieve. It has become. Also,
When the clogging of the screen 204 is removed and the net is replaced, the screen 204 itself can be easily attached / detached, thereby improving the maintainability.

The screen 204 may be replaced by a single (or a plurality of stacked) saw-tooth plates accommodated in the screen frame 203. In this case, while setting the gap size between the saw teeth as described above,
What is necessary is just to arrange | position so that the front-end | tip side of a sawtooth may be the return conveyor 300 side, and the root side may be the main conveyor 6 side.

Further, of the support mechanisms 205a and 205b, one of the support mechanisms 205a is provided with a telescopic member (for example, turnbuckle) 205aA, and the other support mechanism 205b rotates the screen frame 203 via pins 205bA. It is movably supported. That is, the screen frame 203 is rotated around the pin 205bA by expanding and contracting the elastic member 205aA, thereby swinging the sieving device 201 and tilting the screen device 201 (angle with the horizontal plane).
θ (see FIG. 3B) can be changed.
Thereby, the sieving apparatus 201 can adjust the inclination angle θ to a size suitable for the raw material to be charged,
For example, if θ is small, it is possible to sort out easily rolling boulders, etc., and if θ is large, it is possible to improve the sieving efficiency (sieving efficiency) and prevent clogging while ensuring the raw material containing mud. Can be sorted. As described above, the sieving apparatus 201 can be applied to various relatively wide crushed materials and raw materials.

The conveyor 202 is provided with the sorting and conveying device 20
0 and extends from the one end in the longitudinal direction (upper end in FIG. 1) to the other end in the longitudinal direction (lower end in FIG. 1). The conveyor 202 includes a pair of left and right conveyor frames 207, 207, and
Drive pulley 20 rotatably provided between 07 and 207
8 and the driven pulley 209, and the belt 210 wound between the driving pulley 208 and the driven pulley 209.
And a conveyor hydraulic motor 2 attached to the conveyor frame 207 and directly driving the drive pulley 208
11, a well-known belt tension adjusting mechanism 212 provided on the driven pulley 209 side, and support members 213 and 214 provided below the conveyor frame 207, and crushed from the gap of the screen 204. The object is conveyed downward in FIG. 1 and discharged.

The supply of pressurized oil to the hydraulic motor 211 for conveyor of the sorting and conveying device 200 is performed, for example, from the power unit 34 of the self-propelled crusher 100 via a hydraulic pipe (not shown). The hydraulic circuit in this case is, for example, the hydraulic motor 211 for the conveyor is a self-propelled crusher 100.
It suffices to connect the hydraulic oil supply system to the main conveyor hydraulic motor 20 in series with the above. It is needless to say that a drive source may be provided independently of the power unit 34 independently of the above.

In the above description, the longitudinal direction of the main body frame crusher mounting portion 8A of the self-propelled crusher 100 corresponds to the longitudinal direction of the main body frame described in the claims, and one side of the main frame crusher mounting portion 8A in the longitudinal direction. 1 and 2)
Corresponds to one side in the longitudinal direction of the main body frame, and the other side in the longitudinal direction of the main body frame crusher mounting portion 8A (FIGS. 1 and 2).
(Middle left side) corresponds to the other longitudinal side of the main body frame.
Further, the main conveyor 6 constitutes a first conveyor for carrying out the crushed material outside the crusher main body. Further sorting and conveying device 2
1, the upper side in FIG. 1 corresponds to one side, and the lower side in FIG. 1 corresponds to the other side. Further, the sieving apparatus 201 constitutes a sorting means with a transport function for sorting and transporting the crushed material having a set particle size or more to one side while transporting the crushed material carried out by the first conveyor, and the conveyor 202 includes A second conveyer that conveys the crushed material having a particle size smaller than a set particle size selected by the screening means to the other side is formed, and a screen 204 forms a sieve disposed at an upper portion of the second conveyor with an inclination.

Next, the operation of the crushed material production system according to this embodiment will be described below.

In FIG. 1, when a crushed object (not shown) is thrown into the hopper 1 by the bucket 401 of the excavator 400, the thrown crushed object is guided to the crushing device 2 by the feeder 3 and crushed. Crushed to a predetermined size by the device 2. The crushed material falls from the space below the crushing device 2 onto the main conveyor 6 and is conveyed. During the conveyance, the magnetic material mixed into the crushed material by the magnetic separator 7 (for example, a reinforcing steel piece mixed in concrete construction waste material). Etc.) are removed, and finally, they are carried out from the rear part of the self-propelled crusher 100 after being sized to some extent. However, at this time, the degree of crushing varies depending on the hardness, type, etc. of the material to be crushed,
In some cases, crushed materials having a particle size larger than the target particle size (set particle size) may be mixed. Therefore, in the present embodiment, the sorting and conveying device 2 provided separately from the self-propelled crusher 100
The crushed material conveyed from the main conveyor 6 is introduced into the sieve 201 of No. 00. In the sieving apparatus 201, the crushed material is introduced onto the screen 204 and caused to flow down. Thereby, the crushed material having a particle size smaller than the set particle size falls to the conveyor 202 below the screen 204, and is conveyed to the right side (the lower side in FIG. 1) of the main conveyor 6 by the conveyor 202, and It is loaded as a product P. on the other hand,
Among the crushed materials introduced on the screen 204, those having a particle size equal to or greater than the set particle size are conveyed down the screen 204 to the upper side in FIG. 1 and are loaded as oversized crushed materials Q. At this time, the crushed material Q is
00 may be re-input to the hopper 1. That is, as shown in FIG. 1, the excavator 400 is disposed at a position where the loading position of the crushed material Q having a set particle size or more and the hopper 1 are within the turning radius, and as shown by a one-dot chain line in FIG. 1. By turning, the crushed material Q having a particle size equal to or larger than the set particle size discharged from the sieving device 201 is re-introduced into the hopper 1 by the hydraulic shovel 400 (in this case, the hydraulic shovel 40
0 performs both the work of charging the crushed material and the work of recharging the crushed material Q). The re-input crushed material Q is crushed again by the crushing device 2 as described above. The re-crushed crushed material is carried out by the main conveyor 6 and then re-introduced into the sieving apparatus 201. If the crushed product is smaller than the set particle size, the crushed product is loaded as a crushed product P. The object Q is re-introduced into the hopper 1 by the excavator 400, and the same procedure is repeated thereafter.

According to the crushed material production system of the present embodiment as described above, the following operational effects can be obtained.

(1) Improvement of quality of crushed product In one embodiment of the present invention, the self-propelled crusher 1
The crushed material carried out from 00 is put into the sorting and conveying device 200, and the crushed material having a particle size smaller than the set particle size (crushed product product) in the sorting and conveying device 200 is clarified from those having the set particle size or more (non-product). Therefore, the quality of the crushed product can be improved as compared with the case where they are separated and mixed.

(2) Reduction of System Installation Area In general, each conveyor requires a relatively long installation space. However, in the above-described crushed material production system according to the embodiment of the present invention, as described above, Screen 20
Since the sieving apparatus 201 provided with the sieve 4 also has a conveying function, a new necessary conveyor separately from the main conveyor 6 of the self-propelled crushing machine 100 is sufficient for one of the conveyors 202 of the sorting / conveying apparatus 200. The number of conveyors can be reduced by one as compared with the case where two conveyors are required separately from the conveyor of the traveling crusher. Therefore, the area required for installing the conveyor can be reduced, and as a result, the installation area of the entire crushed material production system can be reduced. Therefore, since the degree of freedom of layout at the operation site can be improved, when crushing work is performed in a relatively narrow place such as a building demolishing site in an urban area, the area for installing the crushed material production system is not necessarily sufficient. Even when it cannot be secured, it can be easily operated. Further, for example, assuming that the omitted conveyor receives power from the self-propelled crusher side, the power source ( In the present embodiment, the size of the engine, the hydraulic pump, and the like in the power unit 34 can be reduced. As a result, the size of the entire self-propelled crusher can be reduced, and the area required for the installation of the self-propelled crusher can be reduced. Can be planned.

(3) Improvement of Recycling Rate In one embodiment of the present invention, the sorting and conveying device 2
At 00, a product that is separated from the crushed product that cannot be converted into a crushed product as it is with a set particle size or more can be introduced into the self-propelled crusher 100 by the hydraulic excavator 400 and re-crushed. Therefore, by repeating this circulation path, non-products having a particle size equal to or larger than the set particle size can be reduced, and crushed products having a particle size smaller than the set particle size can be increased, whereby the recycling rate can be improved. In addition, by repeating the process until all of the crushed materials finally become crushed product P having a particle size smaller than the set particle size, a recycling rate of 100% can be achieved. (4) Effect of Screen Not Powered (Fixed Sieve) In the embodiment of the present invention, as described above,
By extending the screen 204 above the conveyor 202 in the transport direction (that is, the longitudinal direction of the conveyor) and setting a sufficiently long sieving distance, a sufficient sorting function can be achieved even if the sieving is not vibrated using a driving force and the screen is fixed. It can be secured. This makes it possible to reduce the required power as compared with, for example, the case of using a vibrating sieve.If the vibrating sieve obtains power from the self-propelled crusher side, there is no need to apply power to the vibrating sieve. As a result, the power source mounted on the self-propelled crusher can be reduced in size, and the overall size of the self-propelled crusher can be reduced, thereby reducing the installation area of the entire crushed material production system. Can be. In the embodiment of the present invention, the sorting and conveying device 200
Are arranged so that the conveying direction of the conveyor 202 projects in a direction perpendicular to the unloading direction of the main conveyor 6 of the self-propelled crusher (to the side of the self-propelled crusher 100), but is not limited thereto. As shown in FIG. 4, the conveying direction of the conveyor 202 projects obliquely from the unloading direction of the main conveyor 6 of the self-propelled crusher (= the loading position of the crushed material Q having a set particle size or more is set to the hopper 1). (To approach). In this case, the reloading operation of the crushed material Q by the excavator 400 is further facilitated. In one embodiment of the present invention, as shown in FIG.
The crushed material Q having a particle size equal to or larger than the set particle size discharged from the hopper 01 is re-introduced into the hopper 1 by the hydraulic shovel 400. However, the crushed material flowing down on the screen 204 is self-propelled crushed using a return conveyor. The crusher may be re-charged into the hopper 1 of the machine 100 to be re-crushed. Such a modification will be described with reference to FIGS. FIG. 5 is a top view showing the overall arrangement of a modification in which a return conveyor 300 is provided instead of the hydraulic excavator 400, and FIG. 6 is a side view as viewed from the direction B in FIG. 5 and 6, a return conveyor 300 is provided at the position of the excavator 400 shown in FIG. The return conveyor 300 extends upward from the one end (the upper end in FIG. 5) of the sorting / conveying device 200 to the hopper 1 of the self-propelled crusher 100. , 301 and an introduction section 302 provided at the upstream end of the frame 301 in the transport direction to introduce crushed material from the outlet section 206 of the sorting and transporting apparatus 200.
A driving pulley (not shown) and a driven pulley (not shown) rotatably provided between the frames 301 and 301, and a belt 303 wound between the driving pulley and the driven pulley. A hydraulic motor (not shown) for driving the drive pulley, a well-known belt tension adjusting mechanism (not shown) provided on the driven pulley side, and a hopper for introducing and collecting the conveyed crushed material. And a lead-out section (chute section) 304 leading to the first position. Then, the screen 204 of the sieving apparatus 201 conveys the crushed material having a set particle size or more among the crushed materials introduced from the main conveyor 6 to the upper side in FIG. The crushed material introduced by the introduction unit 302 is conveyed to the hopper 1 and re-entered, and collected by the crushing device 2 as described above. Crushed. The supply of pressure oil to the hydraulic motor of the return conveyor 300 is performed by the hydraulic motor 211 for the conveyor.
In the same manner as described above, for example, this is performed from the power unit 34 of the self-propelled crusher 100 via a hydraulic pipe (not shown). At this time, the hydraulic circuit of the return conveyor 300 is a hydraulic motor for the magnetic separator 2 of the self-propelled crusher 100.
It suffices if it is connected serially with the pressure oil supply system to 2. In the above, the return conveyor 300 constitutes a third conveyor that introduces the crushed material having the set particle size or more conveyed to the one side by the sorting unit and conveys the crushed material to the hopper of the self-propelled crusher. In this modified example, the following effects are obtained in addition to the effects similar to the above-described embodiment of the present invention.

Reduction of Installation Area Size and Improvement of Mobility This effect will be described with reference to comparative examples shown in FIGS. FIG. 7 is a top view showing the entire arrangement of the crushed material production system according to the comparative example, and FIG. 8 is a side view seen from the direction C in FIG. FIG. 7 is a diagram corresponding to FIGS. 5 and 6. 5 and 6 are denoted by the same reference numerals, and description thereof is omitted.

7 and 8, in the crushed material production system according to the comparative example, the sorting and conveying device 200 in the modified crushed material production system shown in FIGS. 5 and 6 is omitted. Self-propelled crusher 10
A known vibrating sieving apparatus 700 that receives the crushed material carried out by the main conveyor 6 and sorts the crushed material according to the particle size.
(See Fig. 8) and one of the sorted crushed materials (on the sieve)
Conveyor (tertiary conveyor) 800 for discharging the crushed material in a direction perpendicular to the discharge direction of the main conveyor 6 (upward in FIG. 7), and the other crushed material (under the sieve) sorted by the vibrating sieve 700. A known conveyor (secondary conveyor) 900 that conveys the main conveyor 6 in the unloading extension direction (left side in FIG. 7) is provided.

In the above configuration, the crushed material carried out from the main conveyor 6 of the self-propelled crusher 100 is introduced into the vibrating sieving device 700, and the crushed material having a particle size smaller than the set particle size is removed. Then, it is dropped from a gap of a screen (not shown), introduced into the conveyor 900, conveyed by the conveyor 900 in the unloading extension direction of the main conveyor 6 (left side in FIG. 7), and loaded as a crushed product P. On the other hand, among the crushed materials introduced into the vibrating sieve 700, those having a particle size equal to or larger than the set particle size are screened.
It flows down, is introduced into the conveyor 800, and projects at right angles from the unloading direction of the main conveyor 6 (upward in FIG. 7).
And is introduced into the return conveyor 300.
The crushed material introduced into the return conveyor 300 is re-introduced into the hopper 1, is crushed again by the crushing device 2 as described above, is carried out by the main conveyor 6, and is again introduced into the vibration sieving device 700. Those having a particle size smaller than the set particle size are loaded as crushed product P, and those having a particle size larger than the set particle size are again introduced into the return conveyor 300, and thereafter, the same procedure is repeated. In such a comparative example, as a result of using the conveyor 900 to carry out the crushed product, the dimension L1 'in the front-rear direction of the self-propelled crusher 100 in the area necessary for installing the entire system becomes very large. . Also, a conveyor 800 is used to introduce non-products into the return conveyor 300, and one end (upstream end, lower end in FIG. 7) of the conveyor 800 is located near the vibrating screen device 700 and the other end ( The downstream end (the upper end in FIG. 7) is disposed near the return conveyor 300. Therefore, the upstream end 300a of the return conveyor 300 is separated from the main conveyor 6 of the self-propelled crusher 100 by the entire length of the conveyer 800.
As a result, the size L2 'of the entire system in the left-right direction of the self-propelled crusher 100 becomes extremely large. As a result, the dimensions L1 'and L2' are increased, so that the degree of freedom in layout at the operation site is limited. In addition, self-propelled crusher 1
00, the vibration sieving apparatus 700, the conveyor 800, the conveyor 900, and the return conveyor 300 are required as four stationary apparatuses separate from each other, and each time the self-propelled crusher 100 is moved for each of them. (Or every time it is transported to the operation site), it is necessary to re-install the equipment with a heavy machine such as a crane, which greatly impairs mobility. On the other hand, in the crushed material production system of the modified example shown in FIGS. 5 and 6, there is no device that protrudes in the carry-out extension direction of the main conveyor 6 like the conveyor 900 of the comparative example. Of the self-propelled crusher 100 in the front-rear direction L1 (see FIG. 5)
Can be reduced as compared with the above L1 '. Further, a sieving apparatus 201 is used to introduce non-products into the return conveyor 300. The sieving apparatus 201 does not cover the entire length of the conveyor 202, and the upstream end of the sieving apparatus 201 is connected to the conveyor 202 as described above. It is arranged so as to be located in the middle part in the longitudinal direction. Therefore, the distance of the upstream end 300a of the return conveyor 300 from the main conveyor 6 is:
It becomes smaller than the entire length of the conveyor 202. As a result, even if the overall length of the conveyor 202 is the same as the overall length of the conveyor 800 of the comparative example, the left-right dimension L2 (see FIG. 5) of the self-propelled crusher 100 in the system installation area is the same as the L.
It is smaller than 2 '. As described above, the degree of freedom of layout at the operation site can be improved. In addition, as a separate device from the self-propelled crusher 100, a sorting and conveying device 20 is required.
0 and the return conveyor 300 suffice, so that each time the self-propelled crusher 100 is moved (or to the operation site) as compared with the comparative example in which four devices were required separately from the self-propelled crusher. The burden of the re-installation work (every transport) can be greatly reduced (ie, halved), and the mobility of the entire system can be improved. Also, labor saving at the time of installation of the apparatus can be achieved.

Dual Use of Hydraulic Excavator for Injection of Crushed Object and Loading of Crushed Product In other words, FIG. 9 is a top view showing an example of an operation state in the crushed material production system of the modified example shown in FIGS.
As shown in FIG.
By arranging the crushed material into the hopper 1 and loading the crushed product P into the dump truck 500 (see the dashed line in FIG. 9) by arranging the crushed material at an appropriate position on the side of 0 This can be easily performed by the excavator 400.

Further, in the embodiment of the present invention, as shown in FIGS. 1 and 2, the self-propelled crusher 100 has one side (self-propelled) of the main body frame crusher mounting portion 8A in the longitudinal direction. The hopper 1 is provided on the front side of the crusher (right side in FIGS. 1 and 2), and the main conveyor 6 is connected to the other side in the longitudinal direction of the main frame crusher mounting portion 8A (rear side of the self-propelled crusher, FIG. 1 and the left side in FIG. 2), that is, the crushed material is carried out to the side opposite to the hopper. However, the invention is not limited thereto, and a self-propelled crusher in which the main conveyor carries out the crushed material to the hopper side may be applied. Such modifications are shown in FIGS.

FIG. 10 is a top view showing the entire arrangement of the crushed material production system according to this modification, and FIG.
FIG. 3 is a side view seen from the direction D in FIG. 0, and corresponds to FIGS. 1 and 2 of the embodiment of the present invention. In FIGS. 10 and 11, parts that are the same as those in the above-described embodiment and modifications of the present invention are given the same reference numerals, and descriptions thereof will be omitted as appropriate.

In FIGS. 10 and 11, when a crushed object is put into the hopper 1 on the front side (the left side in FIGS. 10 and 11) of the self-propelled crusher 100A, for example, by a bucket of a hydraulic shovel, the crushed object is thrown. The crushed object is guided to the crushing device 2 by the feeder 3 and crushed by the crushing device 2 to a predetermined size. The crushed material falls from the space below the crushing device 2 onto the main conveyor 6 and is transported to the front side (the left side in FIGS. 10 and 11) of the self-propelled crusher 100A. The magnetic material mixed in the crushed material is removed, and finally the size is adjusted to some extent, and the crushed material is carried out from the front of the self-propelled crusher 100A.

The crushed material carried out of the main conveyor 6 is introduced into the sieving apparatus 201 through an auxiliary conveyor 6 'for increasing the discharge height. Conveyor 202
And is conveyed to the left side (lower side in FIG. 10) of the auxiliary conveyor 6 ′ by the conveyor 202, and is loaded as the crushed product P. On the other hand, among the crushed materials introduced on the screen 204, those having a set particle size or more are returned to the return conveyor 30.
0, is re-introduced into the hopper 1 by the return conveyor 300, and re-crushed by the crushing device 2 as described above. The re-crushed crushed material is carried out by the main conveyor 6 and the auxiliary conveyor 6 ', and then is sieved again by the sieving apparatus 20.
1 and smaller than the set particle size are loaded as crushed product P, and those larger than the set particle size are again introduced into the return conveyor 300, and thereafter the same procedure is repeated. Also in the system of the present modified example configured as described above, (1) high quality of the crushed product, (2) reduction of the system installation area, and (3) recycling rate similar to the embodiment of the present invention. 5 and the reduction of the installation area size and the improvement of mobility in the modified examples of FIGS. 5 and 6 are obtained. The effect (4) is as follows.

That is, when the sorting / conveying device 200 is not used as in the present modification, as shown by the two-dot chain line in FIG. As in the comparative example shown in FIG.
The crushed material having a particle size smaller than the set particle size falls from a gap of a not-shown sieve (screen) provided in the vibrating sieving apparatus 700, and is conveyed to the main conveyor 6 and the auxiliary conveyor 6 'by the conveyor 900 in the extending direction. (Left side in FIG. 7) and loaded as a crushed product. on the other hand,
Among the crushed materials introduced into the vibrating sieve 700, those having a set particle size or more flow down the sieve (screen), are introduced into the conveyor 800, and are projected at right angles from the discharge direction of the auxiliary conveyor 6 '(see FIG. 10). (Upper part) and is introduced into the return conveyor 300. In this case, the auxiliary conveyor 6 ′, the vibrating sieving device 700, and the conveyor 80 are provided as stationary devices separate from the self-propelled crusher 100.
0, the conveyor 900, and the return conveyor 300
Since the above five requirements are required, the mobility is greatly impaired, and the vertical and horizontal dimensions of the installation area of the entire system are increased.

On the other hand, in the crushed material production system of this modification, the auxiliary conveyor 6 ′, the sorting and conveying device 200,
Since only three return conveyors 300 are sufficient, the mobility of the entire system can be improved and the vertical and horizontal dimensions of the installation area of the entire system can be reduced as compared with the above. In the above, the case where the self-propelled crusher 100 arranged in the crushed material production system includes a so-called grizzly feeder as the feeder 3 has been described as an example. However, the present invention is not limited to this, and other types of feeders, for example, The crushed material input from the hopper is placed on a substantially flat bottom plate provided below the hopper, and the bottom plate is reciprocated in a substantially horizontal direction by a base driving mechanism based on a driving force generated by a hydraulic motor. Alternatively, a so-called plate feeder may be used in which a preceding crushed object is sequentially extruded on the bottom plate by feeding a subsequent crushed object, and the crushed object is sequentially supplied to the crushing device from the front end of the bottom plate. Further, the present invention may be applied to a model in which a feeder is omitted according to the mode of the crushing operation and other circumstances. Even in the case described above, the same effects as those of the embodiment of the present invention can be obtained. Further, in the above, the self-propelled crusher 100 including the crushing device 2 that crushes the moving teeth and the fixed teeth as the crushing device has been described as an example. However, the crushing device is not limited thereto, and other crushing devices, for example, A rotary crusher (a so-called roll crusher) in which a pair of rotators having a blade for crushing attached to a roll is rotated in the opposite direction to each other, and a crushed object is sandwiched between the rotators to crush. , Etc.), a crushing device having a cutter on a shaft arranged in parallel and shearing the crushed object by rotating them in opposite directions (such as a two-axis shearing machine including a so-called shredder), It can also be applied to a crushing device (so-called impact crusher) that rotates a striking plate equipped with a blade at high speed and uses the impact from the striking plate and the collision with the repelling plate to impactably crush the crushed object. A. Furthermore, in the above description, the sorting and conveying device 200 is a stationary device, but is not limited thereto, and may be a self-propelled sorting and conveying device. One embodiment of the self-propelled sorting and conveying device will be described below with reference to FIGS. In the respective drawings, the same parts as those of the sorting and conveying apparatus 200 according to the embodiment of the present invention are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

FIG. 12 is a top view showing the entire structure of one embodiment of the self-propelled sorting and conveying apparatus of the present invention.
FIG. 13 is a side view as viewed from a direction E in FIG. 12. These figures 1
2 and FIG. 13, the self-propelled sorting and conveying device 250
A sorting and conveying unit 200A having substantially the same structure as the sorting and conveying device 200 of the embodiment of the crushed material production system of the present invention shown in FIGS. 3A and 3B and the like, and the sorting and conveying unit 20
And a traveling body 251 provided below the OA.

The traveling body 251 is mounted on the main body frame 25.
2 and a left / right crawler track 253. The main body frame 252 is formed of, for example, a substantially rectangular frame, and is provided with the sorting / transporting portion mounting portion 25 on which the sorting / transporting portion 200A and a power unit (machine room) 258 to be described later are mounted.
2A, the sorting / transporting section mounting section 252A and the left
And a track frame section 252B connecting the right crawler track 253. Crawler track 253
Is stretched between a drive wheel 254 and a driven wheel (idler) 255 rotatably supported by the track frame portion 252B, and is provided on the drive wheel 254 side.
The self-propelled sorting / conveying device 250 is caused to travel by being provided with a driving force by the right traveling hydraulic motor 256.

Here, the conveyor 202 and the crawler track 253 are a power source provided in the self-propelled sorting and conveying device 250, that is, an engine (not shown) as a prime mover.
And at least one hydraulic pump (not shown) driven by the engine. Pressure oil from the hydraulic pump is supplied to the conveyor hydraulic motor 208 and the left / right traveling hydraulic motor 256 corresponding to the conveyor 202 and the crawler track 253, respectively. (Not shown) and a control valve device (not shown) having left and right running control valves (not shown) to supply them to the conveyor hydraulic motor 208 and the left and right running hydraulic motor 256. As a result, the corresponding hydraulic motor is driven to rotate.

The engine, the hydraulic pump, and the control valve device are all provided in a power unit 258 mounted on an upper portion of an end of the main frame selection / transportation portion mounting portion 252A via a power unit loading member 257. ing. A driver's seat 259 is provided in front of the power unit 258 (left side in FIGS. 12 and 13). The driver's seat 259 is a section where an operator gets on the vehicle. The driver's seat 259 is an operating means for controlling the drive speed of the left / right traveling hydraulic motor 256 by switching the left / right traveling control valve. -A right operating lever 260 is provided.

Instead of the turnbuckle, for example, a hydraulic cylinder that operates using the power unit 258 as a drive source may be used as the expansion / contraction member for adjusting the inclination angle (for swinging) of the sieving device 201.

In the above, the crawler crawler 253 constitutes a traveling means, and the sieving apparatus 201 sorts the received crushed material while conveying the crushed material and conveys the crushed material having a set particle size or more to one side. And the conveyor 202
Constitutes a conveyor that conveys the crushed material having a particle size smaller than the set particle size selected by the sorting means to the other side.

According to the self-propelled sorting / conveying apparatus 250 of the present embodiment described above, the self-propelled sorting / carrying apparatus 250 can be self-propelled by the crawler track 253.
It can be easily moved, and when transported to the operation site, can be loaded on the carrier of the transport trailer by its own traveling movement. Therefore, the stationary sorting and conveying device 200
The mobility can be improved as compared with.

The crushed material production system shown in FIGS. 1 and 2, the crushed material production system shown in FIG. 4, the crushed material production system shown in FIGS. 5 to 9, and the crushed material production system shown in FIGS. By using the transport device 200 instead of the self-propelled sorting and transport device 250, the number of stationary devices is further reduced by one, so that the effect of further improving the mobility of the entire system can be obtained.

[0059]

According to the crushed material production system of the present invention,
Since the number of conveyors required separately from the first conveyor of the self-propelled crusher can be reduced, the area required for installation of the conveyor can be reduced. As a result, the installation area of the entire crushed material production system can be reduced. it can.

Therefore, since the degree of freedom of layout at the operation site can be improved, when crushing work is performed in a relatively narrow place in an urban area, for example, a building demolishing site, etc., the area for installing the crushed material production system is increased. Even when it is not always possible to secure enough, it can be easily operated.

[Brief description of the drawings]

FIG. 1 is a top view showing the overall arrangement of a crushed material production system according to an embodiment of the present invention.

FIG. 2 is a side view seen from the direction A in FIG.

FIG. 3 is a top view and a side view showing a detailed structure of a sorting and transporting device that constitutes an embodiment of the crushed material production system of the present invention.

FIG. 4 is a top view showing an overall arrangement of a modified example in which a sorting and conveying device is obliquely arranged in one embodiment of the crushed material production system of the present invention.

FIG. 5 is a top view showing the overall arrangement of a modified example in which a return conveyor is provided in one embodiment of the crushed material production system of the present invention.

FIG. 6 is a side view as seen from the direction B in FIG. 5;

FIG. 7 is a top view showing the overall arrangement of a comparative example with respect to a modification in which a return conveyor is provided in one embodiment of the crushed material production system of the present invention.

8 is a side view as viewed from a direction C in FIG. 7;

FIG. 9 is a top view illustrating an example of a working state of a modification in which a return conveyor is provided in one embodiment of the crushed material production system of the present invention.

FIG. 10 is an overall configuration of a modified example in which a self-propelled crusher of a type in which a main conveyor carries out crushed materials to a hopper side as a self-propelled crusher in one embodiment of the crushed material production system of the present invention. It is a top view showing a structure.

11 is a side view as viewed from a direction D in FIG.

FIG. 12 is a top view showing the entire structure of one embodiment of the self-propelled sorting and conveying device of the present invention.

FIG. 13 is a side view as seen from a direction E in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper 2 Crusher 6 Main conveyor (1st conveyor) 8 Main body frame 100 Self-propelled crusher 200 Sorting and transporting device 200A Sorting and transporting section (selecting means with transporting function) 201 Sieving device (sorting with transporting function) 202 conveyor (Second Conveyor) 204 Screen (Sieve) 250 Self-propelled Sorting / Conveying Device 253 Endless Track Crawler (Running Means) 300 Return Conveyor (Third Conveyor)

Claims (8)

[Claims] 1. A self-propelled crusher having a first conveyor for crushing an object to be crushed and carrying out the crushed object to the outside of the crusher main body, and a crushed object carried out by the first conveyor. It is provided with a sorting means with a transport function for sorting and transporting the crushed material having a set particle size or more to one side while transporting, and a second conveyor for transporting the crushed material having a particle size smaller than the set particle size selected by the sorting device to the other side. A crushed material production system, comprising: 2. A crushed material production system according to claim 1, wherein said sorting means includes a sieve disposed at an upper portion of said second conveyor with an inclination. 3. The crushed material production system according to claim 2, wherein the sorting and conveying device is arranged such that the sieve is inclined downward in a direction away from the tip of the first conveyor. Crushed material production system. 4. The crushed material production system according to claim 3, wherein the sieve conveys the one crushed material with a downward inclination from a longitudinal middle portion of the sorting and conveying device to one end in the longitudinal direction. The second conveyor is extended along the conveying direction of the second conveyor, and the second conveyor removes the other crushed material by ascending from the one end in the longitudinal direction to the other end in the longitudinal direction. A crushed material production system, which is extended so as to be transported. 5. The crushed material production system according to claim 1, wherein the crushed material having a particle size equal to or larger than the set particle size conveyed to said one side by said sorting means is introduced into a hopper of said self-propelled crusher. A crushed material production system, further comprising a third conveyor for conveying. 6. The crushed material production system according to claim 1, wherein the self-propelled crusher has a hopper on one side in a longitudinal direction of the main body frame, and is provided with a hopper on the first conveyor in a longitudinal direction of the main body frame. A crushed material production system characterized by discharging crushed material to the other side. 7. Sorting means having a transport function for sorting the received crushed material while transporting the crushed material having a set particle size or more to one side, and crushing the crushed material having a set particle size smaller than the set particle size selected by the sorting device. And a conveyor for transporting to the side. 8. A running means, a sorting means having a transport function for sorting the received crushed material while transporting the crushed material and transporting the crushed material having a set particle size or more to one side, and a sorting device having a size smaller than the set particle size selected by the sorting device. A self-propelled sorting / conveying device comprising a conveyor for conveying the crushed material to the other side.