JPH0571294A - Method of carrying blasting output such as muck, etc. - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The number of vehicles for unloading work is reduced and the waiting time is eliminated, and blasting and blasting work of blasting mines such as shavings on the face And shorten the series of cycles. Do the construction economically. To reduce environmental pollution in the mine. [Structure] A plurality of loading platforms 5 necessary for processing the entire amount of the blasting and mining material mined by one blasting during the next blasting and digging work are arranged on the face. While the blasting and mining materials are sequentially loaded on each of the loading platforms, the railless self-propelled vehicle 4
Then, the digging material loading platform is temporarily placed in the temporary storage area, and similarly during the next blasting and digging work, it is also sequentially carried out by the railless self-propelled vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for carrying out blast mining materials such as ores, coal, and shavings from a face of a mine or a tunnel construction by using a railless self-propelled vehicle.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned blasting mining material such as shearing has been used by using a towing vehicle that travels on rails that are successively laid and extended in the mine, or by using a plurality of dump trucks and the like that have been put on standby. It is carried out of the mine.

[0003]

However, the former naturally requires that the towing vehicle can run freely on the specified rail and cannot run freely. In addition, the rail must be laid and extended according to the movement of the face. There are certain disadvantages.

The latter requires a long waiting time for each dump truck or the like due to the loading of blasting and mining material by a shovel car, etc., and the running time for carrying out is shorter than the waiting time. As the ratio becomes considerably long and the vehicle maneuvering efficiency becomes extremely low, and in addition, the blasting and mining work removal work must be performed after the next blasting and mining work is stopped, and the blasting and mining work must be started after the unloading work is completed. The disadvantage is that the working time of these series of cycles becomes longer and longer.

In addition, the number of dump trucks required per unit carry-out amount is increased, which is uneconomical due to an increase in labor costs, fuel costs, and the like, and in addition to the increase in the total traveling time, the exhaust gas from the vehicle causes the inside of the mine to mine. There is a drawback that environmental pollution becomes a concern.

An object of the present invention is to eliminate these conventional drawbacks.

[0007]

The construction of the method for carrying out blasted and mined materials such as shears according to the present invention for achieving the above object is as follows.

A plurality of loading platforms necessary for processing the entire amount of the blasting and mining material excavated by one blasting during the next blasting and mining operation are arranged on the face. The blasting and mining materials are sequentially loaded on the respective loading platforms by a loading device such as a shovel car. During the loading, a trackless self-propelled vehicle equipped with a loading and unloading device for loading and unloading the loading platform sequentially transfers the loading platform of the mined material to a temporary storage place where there is no hindrance to the blasting and mining work behind the face.

After the temporary placement work is completed and during the next blasting and mining work, each of the temporarily placed loading platforms is sequentially carried out to the outside of the mine by a trackless self-propelled vehicle also equipped with an unloading device. To do.

[0010]

[Operation] Using a railless self-propelled vehicle, a plurality of loading platforms loaded with blasting and mining materials such as skids with a cutting face were temporarily placed in a temporary storage area that did not interfere with the blasting and mining work behind the cutting face, and were then temporarily placed. It is possible to efficiently carry out the work of carrying the mining material loading platform to the outside of the mine in parallel with the next blasting and mining work without waiting time of the trackless self-propelled vehicle.

[0011]

[Embodiment] An embodiment for carrying out the slide from the face of the tunnel construction shown in the figure will be described below. On the face of the tunnel 1, a shovel car 3 which is a loading device for loading the skid 2 generated by blasting, and a trackless self-propelled vehicle 4
Of the same-shaped cargo beds 5a-5e that can be loaded and unloaded, the cargo beds 5a, 5e
b is arranged in parallel immediately behind the shovel car 3, and further, a little behind it, the loading platforms 5c to 5e are arranged in series. The amount of the shear 2 mined by one blast is such that it can be loaded on these platforms 5a to 5e.

Each of the loading platforms 5a to 5e is a box-shaped rectangular box whose upper side is open. The bottom half of the bottom surface is inclined rearward and a rectangular leg frame 6 is provided on the bottom surface. Yes, if this leg frame 6 is grounded, the bottom corners 5 ',
There is a gap of about 20 cm between the 5'and the ground.

The railless self-propelled vehicle 4 connects the tractor head 7 and a low-floor chassis 8 having a U-shaped plane, and an inner frame 9 serving as a loading / unloading device for loading platforms 5a-5e is provided inside the chassis 8. It's horizontal. The inner frame 9 is substantially U-shaped in plan view and has both long side portions 9a having an L-shaped cross section.
9b face each other in parallel at intervals corresponding to the widths of the bottoms of the loading platforms 5a to 5e, and can be moved up and down in a horizontal state by hydraulic cylinders 10 and 11 provided at the front and rear portions of these long side portions 9a and 9b. In addition, the damping operation can be performed by rotating the rear end portion as a fulcrum.

The hydraulic cylinder 10 (the one on the long side portion 9b side is not shown) is of a multi-stage type, and the lower end of the cylinder 10a is rotatably supported by a shaft 12 at the front side of the chassis 8 and a piston rod. A tip of 10b is rotatably supported by a shaft 13 at the front side of the long side portion 9a.

In the hydraulic cylinder 11 (the one on the long side 9b side is not shown), the upper end of the cylinder 11a is rotatably supported by the shaft 14 at the rear end portion of the chassis 8 and the tip of the piston rod 11b is supported. Is rotatably supported on a support shaft 15 horizontally attached to the rear end portion of the long side portion 9a.
The other end of the link 16 whose one end is rotatably supported on the shaft 5 is rotatably supported on the chassis 8 by a shaft 17.

Therefore, by simultaneously expanding and contracting the hydraulic cylinders 10 and 11, the inner frame 9 can be moved up and down while being held horizontally (FIG. 5, FIG.
6) By expanding and contracting only the hydraulic cylinder 10, the inner frame 9 rotates up and down about the shaft 15 as a fulcrum, and so-called damping operation can be performed.

Also, both long side portions 9 of the inner frame 9
A lock body (not shown) that can be moved back and forth in the horizontal direction by pneumatic or hydraulic cylinders at the front side of a and 9b.
And the receiving holes 18, 18 into which the locking bodies are fitted are provided on both side surfaces of the front portions of the cargo beds 5a to 5e.

In order to carry out the slide 2, the shovel car 3 sequentially loads it onto the loading platforms 5a and 5b, and the inner frames 9 are lowered by hydraulic cylinders 10 and 11 to a position close to the ground, and the railless self-propelled vehicle is run. The vehicle 4 is retracted, and both long side portions 9a and 9b of the inner frame 9 are
Corners 5'on both sides of the bottom of the loading platform 5a on which the slide 2 has been loaded,
Fit along 5 '.

Next, a lock body is fitted into the receiving hole 18 of the loading platform 5a and locked, and the inner frame 9 is fixed to the hydraulic cylinder 1.
Lift horizontally (20 to 30 cm) at 0 and 11 to load platform 5a
This self-propelled self-propelled vehicle can be mounted on the self-propelled vehicle 4 by lifting it from the face, and up to a temporary storage area (not shown) provided in a place where there is no hindrance to the blasting and mining work on the face in the tunnel 1. 4, the inner frame 9 is lowered by the hydraulic cylinders 10 and 11 there, the loading platform 5a is slid, and the loading 2 is placed in the temporary storage place, the lock is unlocked, and the trackless self-propelled system is used. The vehicle 4 is moved forward to disengage the inner frame 9 from the loading platform 5a, and the loading platform 5a is temporarily placed in the temporary storage area.

While the luggage carrier 5a is temporarily placed as described above, the slide 2 is loaded on the luggage carrier 5b by the shovel car 3 as described above. Further, the trackless self-propelled vehicle 4 on which the cargo bed 5a is temporarily placed changes direction in a turn space (not shown) provided in the tunnel 1 and retracts to a face, and the cargo bed 5c is operated in the same manner as the case of the cargo bed 5a. After loading the vehicle at the place where the loading platform 5a was located immediately behind the shovel car 3, the loading platform 5b loaded with the slide 2 was loaded on the trackless self-propelled vehicle 4.
It is mounted on the premises and transferred to a temporary storage area for temporary storage.

Further, the slide 2 is loaded on the loading platforms 5c to 5e in the same manner as described above, the loading platforms 5c and 5d are transferred to the temporary storage place and temporarily placed, and the final loading platform 5e is not temporarily placed and is railless self-propelled. It is carried out of the mine while being mounted on the vehicle 4. In this way, the next blasting and mining is carried out immediately after transferring the skid 2 from the face to the loading platforms 5a to 5e.
Meanwhile, the cargo beds 5a to 5d temporarily placed in the temporary storage place are sequentially mounted on the trackless self-propelled vehicle 4 and carried out to the outside of the mine.

After the above-mentioned blasting and mining, the loading platform 5 is emptied.
a to 5e are sequentially mounted on the trackless self-propelled vehicle 4 and transferred to the face and arranged in the same row as the previous time, and the newly excavated skids 2 are divided into these loading platforms 5a to 5e, and the same as the above case. Carry it out of the mine in the same way. In this way, the shearing is carried out by repeating the above-mentioned operations.

In the above embodiment, the case where one railless self-propelled vehicle and five loading platforms are used to carry out the shear has been described, but the present invention is not limited to this, and the state of the face, the size of the tunnel, 1 The number of blasting and mining operations per time, the time required for temporary placement work, etc. may be taken into consideration, and the number of blasting and mining materials such as ore or coal can be similarly carried out in addition to the shearing.

[0024]

As is clear from the above description,
The present invention has the following effects.

[0025] The operation of carrying the mining material loading platform out of the mine,
After temporarily placing the mining material loading platform in a temporary storage area that does not interfere with the blasting and mining work behind the face, it will be carried out in parallel with the next blasting and mining work during the next blasting and mining work. You can eliminate the waiting time of railroad self-propelled vehicles,
Therefore, as in the conventional case, the work time of a series of cycles can be remarkably shortened as compared with the case where the blasting and mining work is performed next time and the blasting and mining work is started after the unloading work is completed.

While the blasting mining products are successively loaded on the plurality of loading platforms arranged on the face, the mining products loading platform can be sequentially transferred to the temporary storage yard according to the loading cycle.
The temporary placement transfer operation itself can be made more efficient, and the face opening time can be made constant regardless of the extension of the tunnel.

Since the number of loading platforms to be placed on the cutting face is the number required to process the entire amount of the blast mining material excavated by one blast during the next blast mining operation, The work of transferring to and from the temporary storage site to the outside of the mine can be performed most efficiently in consideration of the blasting and mining work, and shortening the face opening time contributes to shortening the construction period.

When a vehicle such as a conventional dump truck is used, since the transportation of the loading platform to the temporary storage site and the unloading from the temporary storage site to the outside of the mine are both performed by a trackless self-propelled vehicle equipped with an unloading device. As described above, it is possible to avoid increasing the number of units required per unit carry-out amount, such as labor costs and fuel costs, and reduce the adverse effects of environmental pollution due to exhaust gas accompanying the increase in total running time of vehicles. it can.

Since the railless self-propelled vehicle is equipped with an unloading device, it is not necessary to separately install an unloading device dedicated to the unloading work for transferring the loading platform to the temporary storage place and carrying it out of the mine. Target.

Since the transportation of the loading platform to the temporary storage area and the unloading to the outside of the mine are carried out by the trackless self-propelled vehicle, it is naturally different from the case where it is carried out by the towing vehicle which travels on the specified rail. It can run and has good workability, and it does not have the disadvantage of having to extend the rails according to the movement of the face.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment in which the present invention is applied to carry out a shear from a face of a tunnel.

FIG. 2 is a side view of the above.

FIG. 3 is a side view of the cargo bed in the above.

FIG. 4 is a rear view of the above.

FIG. 5 is a side view of a main portion of the chassis of the above-described luggage carrier.

FIG. 6 is a rear view of the above.

[Explanation of symbols]

 1 tunnel 2 slide 3 loading device shovel car 4 trackless self-propelled vehicle 5a-5e loading platform 9 loading / unloading device inner frame

Claims (1)

[Claims] 1. A plurality of loading platforms necessary for processing the entire amount of blasting and mining material mined by one blasting during the next blasting and mining work are arranged on the face, and each loading platform is provided with each loading platform. The blasting and mining products are sequentially loaded by a loading device such as a shovel car, and during the loading, the digging material loading platform is blasted and mined behind the face by a trackless self-propelled vehicle equipped with an unloading device that unloads the loading platform. After the temporary placement work is completed and the next blasting and mining work is being performed, the above-mentioned temporarily placed loading platforms are also loaded and unloaded by the same unloading device. A method for carrying out blasted mined material such as shear, which is characterized in that it is carried out one after another by a provided railless self-propelled vehicle.