JP2002087595A - Powder discharging system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase allowable stock quantity by holding a powder carrying passage and a discharge port at high positions for effectively utilizing the whole range of a stock place, and equalizing powder stacking height along the whole body for eliminating a dead zone. SOLUTION: A movable conveyor 14 positioned right under a fixed feed port 12 for sand and soil 11 fixed above a stock place P to horizontally carry the sand and soil 11 received from the fixed feeding port 12 is provided, with the discharge port 13 for the sand and soil 11 carried provided to be movable in a carrying direction. A discharge conveyor 16 is provided to be positioned right under the discharge port 13 of the movable conveyor 14 to horizontally move synchronously with movement of the discharge port 13 to horizontally carry the sand and soil 11 received from the discharge port 13 in a perpendicular direction to the carrying direction of the movable conveyor 14. The discharge conveyor 16 is provided with a discharge port 15 for the sand and soil 11 carried to be movable in the carrying direction of it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing system in which powdery and granular materials such as earth and sand and grains conveyed to a stocking place are piled up by dispersing.

[0002]

2. Description of the Related Art In a large-scale excavation site, a large amount of excavated earth and sand is temporarily stored in a stocking place, and is gradually unloaded by a truck or the like. Conventionally, when earth and sand are temporarily piled up at the stocking place, heavy equipment such as a tripper conveyor or a bulldozer is used.

[0003] The tripper conveys earth and sand with the spout at the tip located above the stocking location, so that the sediment spouted from the spout is piled up. Then, when the stacking height of the place reaches a predetermined height, the outlet is moved to another place, and the earth and sand is stacked at the moved place. Also, even in heavy equipment, the earth and sand will be similarly scraped up and piled up.

[0004]

However, in the conventional temporary stacking method, a tripper conveyor or a heavy machine which is installed or moved in contact with the stocking place is used.
The accumulation of earth and sand is limited by the tripper conveyor itself and the heavy equipment itself. That is, since the tripper conveyor needs to secure its own space installed on the ground and its moving direction, it is impossible to pile up earth and sand on those parts, and the effective space of the stocking place is reduced. In addition, due to the structure of the tripper conveyor, the movement of the spreading position is a predetermined linear trajectory, and the degree of freedom in the arrangement direction of stacking earth and sand is reduced. Further, when the scattered earth and sand is piled up to an allowable height, the blasting port is largely moved to the next side and blasting is started again. For this reason, the interval between the piles of piled soil is inevitably increased, and a large valley-shaped dead zone is formed between the piles, thereby reducing the allowable amount of sediment stock piled up at the temporary storage location. Would. In addition, since the heavy equipment needs to secure a flow line (path) through which the heavy equipment moves, the flow line portion becomes a dead space, which reduces the allowable amount of sediment stock, and the operation of the heavy equipment requires skill. An operator is required.

In view of the foregoing, the present invention has been made in view of the above-mentioned conventional problems, and maintains the height of the conveying path and the discharge port of the granular material such as earth and sand at a high position to make the entire area of the stock area effective. The object of the present invention is to provide a system for dispersing powder and granules capable of increasing the stock allowance by eliminating the dead zone by equalizing the stacking height of the powder and granules over the whole and using the powder and granules. And

[0006]

In order to achieve the above object, the present invention provides a system for distributing powders and granules, wherein the powders and granules are conveyed to a stocking place and spread out. In the system for dispersing the granular material so as to pile up, the granular material received from the fixed supply port is horizontally located just below the fixed supply port of the granular material provided above the stock location. A first transport device in which an outlet of the transported granular material is movable in the transport direction;
It is located immediately below the discharge port of the first transport device, moves horizontally in synchronization with the movement of the discharge port, and intersects the powder and granules received from the discharge port with the transport direction of the first transport device. A second transport device that horizontally transports the powder and granules in the direction, and a discharge port of the transported granular material is movable in the transport direction.

In addition, a pair of discharge ports of the first transporting device are provided with the fixed supply port of the granular material interposed therebetween.
The transport direction of the granular material by the transport device can be switched between forward and reverse.

Further, a pair of outlets of the second transport device are provided with the outlet of the first transport device interposed therebetween.
The direction in which the granular material is transported by the second transport device can be switched between forward and reverse.

Further, a height measuring sensor is provided for measuring a distance between the outlet and the top end of the granular material scattered and stacked from the outlet, and the height measuring sensor measures the distance. When the top reaches the predetermined height based on the value, the outlet is moved from that position.

In addition, a horizontal measuring sensor for measuring a distance between the first conveying device and the second conveying device is provided, and a discharge port of the first conveying device and a second measuring device are measured based on a measured value of the horizontal measuring sensor. The transport device is moved synchronously.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 8 show one embodiment of a powder and granular material discharging system according to the present invention, FIG. 1 is a perspective view showing a main configuration of the discharging system, FIG. 2 is an overall front view of the discharging system, and FIG. 3 is an overall side view of the dispensing system, FIG. 4 is an overall side view showing an operation state of the dispensing system, and FIG. 5 is a main part enlarged side view showing a positional relationship between the first transport device and the second transport device. 6 is a plan view showing the direction in which the soil is scattered to the stocking place by the scatter system, FIG. 7 is a flowchart illustrating the scatter method of the scatter system, and FIG. It is.

As shown in FIG. 1 to FIG. 3, the dispensing system 10 according to the present embodiment
The following describes an example in which the excavated earth 11 is piled up at a stock location P provided near the excavation site. That is, the system 10 for dispersing the granular material of the present embodiment is located immediately below the fixed supply port 12 of the earth and sand 11 fixedly provided above the stock location P, and receives the earth and sand received from the fixed supply port 12. A movable conveyor 14 serving as a first transport device in which the discharge port 13 of the conveyed earth and sand 11 is movable in the transport direction while the horizontal conveyor 11 is being transported, and is located immediately below the discharge port 13 of the movable conveyor 14. , Moves horizontally in synchronization with the movement of the outlet 13, and
Conveyor as a second conveyor in which the earth and sand 11 received from the conveyor are horizontally conveyed in a direction orthogonal to the conveying direction of the movable conveyor 14 and the outlet 15 for the conveyed earth and sand 11 is movable in the conveying direction. 16 are provided.

The fixed supply port 12 is supplied with earth and sand 11 through a first fixed conveyor 20 and a second fixed conveyor 21.
The excavated earth and sand 11 lifted from the underground is transferred to the base end portion 20a of the first fixed conveyor 20, and the earth and sand 11 conveyed by the first fixed conveyor 20 is transferred from the tip end portion 20b to the second fixed portion 20b. Base end 2 of conveyor 21
1a. The second fixed conveyor 21 is arranged in a direction orthogonal to the first fixed conveyor 20, and the leading end of the second fixed conveyor 21 serves as the fixed supply port 12.

The first fixed conveyor 20 and the second fixed conveyor 21 are supported on a gantry 30 having a predetermined height so as to cover almost the entire area of the stock place P.
The gantry 30 has a portal shape formed by a plurality of steel columns 31 erected along both sides of the stock place P and a plurality of girders 32 connected across the upper end of each of the opposed steel columns 31. It is composed of The first fixed conveyor 20 is disposed in the left-right direction (Y direction in FIG. 1) in the same direction as the girder 32, and is located near the right end of the gantry 30 in FIG.
The first conveyor 20 is fixed to the gantry 30 by inclining upward so that the tip end 20 b of the first conveyor 20 reaches above the center of the girder 32.

On the other hand, the second fixed conveyor 21 is in a front-rear direction (X in FIG. 1) which is perpendicular to the first fixed conveyor 20.
The second fixed conveyor 21 is fixed above the girder 32 in a state where the base end 21a of the second fixed conveyor 21 is disposed immediately below the distal end 20b of the first fixed conveyor 20. At this time, the fixed supply port 1 of the second fixed conveyor 21
2 is arranged substantially at the center on the plane of the gantry 30.

In the present embodiment, a large roof R having a pillarless structure is provided so as to cover the entire gantry 30.
By isolating the inside and outside of the stock place P, dust and noise are prevented from leaking outside.

The movable conveyor 14 and the spreading conveyor 16 are supported on the gantry 30. The movable conveyor 14 includes a second fixed conveyor 21.
Is fixed to the U-shaped frame 33 which is disposed directly below and oriented in the same direction, and is movable back and forth. The U-shaped frame 33 is provided with a pair of rollers 34 on both sides in the width direction as shown in FIG. 5, while a pair of H-shaped steels 36 is provided on the large beam 32 via a bracket 35 as shown in FIG. The H-shaped steel 3
The U-shaped frame 33 is movable in the front-rear direction by the rollers 34 rolling with the lower end flange of 6 as a rail. The movement of the U-shaped frame 33 is automatically controlled by a controller (not shown), and is moved in synchronization with the forward and backward movement of the discharging conveyor 16.

The earth and sand 11 is delivered to the movable conveyor 14 from the fixed supply port 12 of the second fixed conveyor 21, and is conveyed to the discharge port 13. In the present embodiment, the outlets 13 are provided at both ends of the movable conveyor 14, respectively. The front (the front side in FIG. 1) is a front outlet 13a, and the rear (the other side in FIG. 1) is a rear outlet 13b. These two outlets 13a, 13b are connected to the movable conveyor 1
4 can be arbitrarily selected by switching the transport direction between forward and reverse.

On the other hand, the spouting conveyor 16 is disposed immediately below the discharge port 13 in an orthogonal direction, and is fixed to a carriage 38 which is movable on a movable beam 37 which can move back and forth as shown in FIG. You. As shown in FIG. 3, the movable beam 37 is provided with wheels 39 at both ends thereof, and moves (X) forward and backward (X) on a rail 40 attached across a series of steel columns 31 erected on both sides of the gantry 30. Can be attached freely. On the other hand, the bogie 38 is rolled so that its wheels 41 can move in the left-right (Y) direction on a rail 42 provided in the length direction of the movable beam 37. The forward and backward movement of the movable beam 37 and the left and right movement of the carriage 38 are automatically controlled by the controller, and are moved according to the piled state of the earth and sand 11.

The earth and sand 11 is delivered to the discharging conveyor 16 from the discharge port 13 of the movable conveyor 14, and is conveyed to the discharging port 15, and the earth and sand 11 is transferred from the discharging port 15 to the stocking place P. The earth and sand 11 are piled up by being scattered. The outlets 15 are provided at both ends of the outlet conveyor 16 similarly to the movable conveyor 14, and the right side is an outlet 15a, the left side is an outlet 15b, and the left side is an outlet 15b. The outlets 15a, 15b can be arbitrarily selected by switching the transport direction of the outlet conveyor 16 between forward and reverse.

Therefore, in the earth and sand discharging system 10 of the present embodiment, as shown in FIG. 3, the earth and sand 11 transferred to the movable conveyor 14 from the fixed supply port 12 arranged substantially at the center of the gantry 30 is It is conveyed by the movable conveyor 14 and is delivered from one of the front discharge port 13a and the rear discharge port 13b to the discharging conveyor 16, and then conveyed by the discharging conveyor 16 to the right discharging port 15a or the left discharging port. It will be scattered from one of the outlets 15b. At this time, the movable conveyor 14 moves in the front-back (X) direction as shown in FIG. 4, and in synchronization therewith, the dispensing conveyor 16 moves in the same (X) direction, and also moves in the left-right (Y) direction. By moving, the spout 15a or 15b can spout the earth and sand 11 continuously to the stocking place P as shown in FIG. At this time,
In the present embodiment, the stock location P is divided into four blocks P1, P2, P3, and P4 from block 1 to block 4, and the soil 11 is stacked for each block.

That is, in stacking the earth and sand 11,
In block 1 (P1), the rear discharge port 13b of the movable conveyor 14 and the left discharge port 15b of the discharge conveyor 16
Are used. In the block 2 (P2), the rear outlet 13b and the right outlet 15a of the outlet conveyor 16 are used. Similarly, in block 3 (P3), the front discharge port 13a of the movable conveyor 14 and the left discharge port 15b of the discharge conveyor 16 are used, and in block 4 (P4), the front discharge port 13a and the movable conveyor 14 are used. The front outlet 15a is used.

FIG. 6 shows the trajectory of the block 3 (P3). In this case, the movable conveyor 1
By moving the discharge conveyor 16 back and forth in the left and right directions in the Y direction while moving the block 4 forward in the X direction (to the left in the figure), the earth and sand 11 are scattered over the entire area of the block 3 (P3). Also, even in the other blocks P1, P2, P4, the spreading conveyor 16 is reciprocated while appropriately selecting the moving direction of the movable conveyor 14, so that the earth and sand 11 can be spread over the entire area of each block P1, P2, P4. Can be scattered.

At this time, the outlets 15a and 15a
Below the bottom 5b, height measuring sensors 50 for measuring the distance from the top end 11a of the earth and sand 11 stacked on the stock place P are provided, respectively. The height measuring sensor 50 measures a distance using, for example, an ultrasonic wave, and the measured value is input to the controller, and the height of the earth and sand 1 is measured.
When the stacking height h reaches a predetermined height, that is, a height at which the top end 11a does not interfere with the spouting conveyor 16, the spouting conveyor 16 is moved in the left-right direction or the front-rear direction to move the soil 11 The stacking position is shifted. The moving distance of the spreading conveyor 16 at this time can be arbitrarily set by the opening and closing time of the electromagnetic switch of the traveling motor, and this is controlled by a timer provided in the controller.

The movable conveyor 14 is provided with a horizontal measuring sensor 51 for measuring a distance between the movable conveyor 14 and the spreading conveyor 16. This horizontal measurement sensor 51 measures the distance between the target 52 provided on the spreading conveyor 16 on the other side using ultrasonic waves in the same manner as the height measurement sensor 50, and the measured value is The position of each of the front and rear movements is controlled so that the distance between the movable conveyor 14 and the dispensing conveyor 16 is always constant by being input to the controller. In this case, the movable conveyor 14 and the spreading conveyor 1
The moving speed of 5 is made to be constant speed, and the distance between the electromagnetic switches is basically kept constant by making the opening and closing time of the electromagnetic switch the same. However, when the fixed distance cannot be maintained due to inertia force or slip, etc. The horizontal measurement sensor 51 can correct the mutual distance with high accuracy.

The operation of the earth and sand discharging system 10 according to the present embodiment having the above-described configuration will be described below with reference to a flowchart of FIG. This flowchart is composed of one block (P1, P2,
P3 or P4) shows a case in which earth and sand 11 are scattered, and one corner point A of the block is set as a start position.

That is, first, one of the left and right outlets 16a, 16b of the outlet conveyor 16 is waiting at the point A (step S1), and the earth and sand 11 excavated in this state is the first. , The second fixed conveyors 20 and 21, the movable conveyor 14, and the spouting conveyor 16, which are sequentially delivered to each other, and stand by at the point A.
a and 16b (step S)
2). Then, the spouted earth and sand 11 are piled up at the point A (step S3), and the distance H between the top end 11a and the spout 16a or 16b is constantly measured by the height measurement sensor 50 (step S3). Step S
4).

Then, when the top end 11a is stacked to a predetermined height h, the discharging port 16a or 16b of the discharging conveyor 16 is moved toward the point B by a predetermined distance in the Y direction (step S5). Even during this movement, the earth and sand 11 are continuously scattered. The moving conveyor 14 and the discharging conveyor 16 are reciprocally moved when the discharging port 16a or 16b reaches the adjacent corner point B by repeating the movement of the predetermined distance while discharging the earth and sand 11 by the discharging conveyor 16. Is moved to the point E in the front-rear (X) direction while keeping the distance (step S6). Then, the discharging conveyor 16 continuously discharges the earth and sand 11 toward the point F while returning from the point E in the left-right (Y) direction (step S7).

Next, when the discharging port 16a or 16b reaches the point F existing on the opposite side of the block, the movable conveyor 14 and the discharging conveyor 16 are synchronized and moved in the direction of the point C along the opposite side ( Step S8). By repeating steps S1 to S8 in this manner, the block has been completely scattered with the earth and sand 11, and when the block has been scattered, the discharge port 16a or 16b is moved to an adjacent block (step). S
9). Then, in the moved block, the above step S1 is performed.
Then, the earth and sand 11 are scattered according to the same procedure as in step S8.

Therefore, the spreading system 1 of the present embodiment
0, the movable conveyor 14 and the discharging conveyor 16 are supported by the gantry 30, and the earth and sand transport path including the discharging port 15 is held at a predetermined height as a whole. There is no hindrance in dispersing and stacking the earth and sand 11 from 15 to the stock place P, and the whole area of the stock place P is effectively used to make the soil 1
One can increase the stock allowance.

Since the outlet 15 can move the outlet 15 while measuring the top end 11a of the piled soil 11 by the height measuring sensor 50,
The pile height h of the earth and sand 11 can be piled up to the maximum so as not to interfere with the discharge port 15, and the pile can be continuously moved. Therefore, the piled-up height of the earth and sand 11 can be substantially equalized over the entire area, and the dead zone which becomes a large valley can be eliminated, so that the stock capacity can be further increased. Further, by providing the height measurement sensor 50, the piled earth and sand 11 can be automatically moved through the spout 15 without interfering with the spout 15, so that labor can be saved.

Further, a horizontal measuring sensor 51 is provided to measure the distance L between the movable conveyor 14 and the dispensing conveyor 16 to correct the positional relationship between the two conveyors 14, 16, so that these movable conveyors 14 can be corrected. When the conveyor 16 is moved synchronously, the distance is surely kept constant, and the earth and sand 11 from the discharge port 13 to the conveyor 16 are discharged.
Can be reliably delivered.

In the present embodiment, the case where the dispersing system 10 is used for dispersing the earth and sand 11 has been described as an example. However, the object to be dispensed is not limited to the earth and sand 11 but may be any other granular material such as grain. The present invention can also be applied to a case where the storage areas are stacked in a warehouse or a large silo. In addition, although the earth and sand 11 are conveyed to the fixed supply port 12 via the first and second fixed conveyors 20 and 21, the fixed supply port 12 may be configured as an outlet of a hopper. Furthermore, the belt conveyor of the movable conveyor 14 and the spout conveyor 16 is used as the first conveyor and the second conveyor, but the present invention is not limited to this, and the present invention can be applied to other conveyors such as a bucket conveyor. Can be achieved.

[0034]

As described above, in the system for dispensing powdery and granular materials according to the present invention, the discharge port of the first transfer device is movable in the transfer direction, and the second transfer device is connected to the discharge port. And the outlet is moved in synchronization with the second
The first and second transfer devices are movable in the transfer direction of the transfer device, and the first transfer device transfers the powder and granules from a fixed supply port provided above the stock place. The powder and the granular material are scattered while being held at the predetermined height, and there is no hindrance to the scatter, so that the entire area of the stock place can be effectively used. Also,
Since the spouting port can continuously spout out the granules along with the movement of the spouts, the top end portion of the stacked granules can be almost evenly distributed over the entirety and the dead zone can be eliminated. The stock capacity of the granular material can be greatly increased in combination with the effective use of the entire stock area.

Further, a pair of discharge ports of the first transporting device are provided with the fixed supply port of the granular material interposed therebetween so that the transport direction of the granular material by the first transporting device can be switched between forward and reverse. Since the granular material delivered from the fixed supply port can be transported in the opposite direction and delivered to the second transport device, the range of the granular material to be scattered can be widened.

Further, a pair of discharge ports of the second transport device are provided with the discharge port of the first transport device interposed therebetween, so that the transport direction of the granular material by the second transport device can be switched between forward and reverse. In addition, since the granular material delivered from the outlet can be scattered to the opposite side, the scatter area of the granular material can be expanded.

Further, a height measuring sensor is provided to measure the distance between the discharge port and the top of the piled-up granules, and when the top reaches a predetermined height, the discharge port is measured. Is moved from that position, so that the stacked outlet can be automatically moved without interfering with the spout, so that labor can be saved.

Further, since a horizontal measuring sensor is provided to measure the distance between the first and second transport devices and to synchronously move both transport devices, the first and second transport devices are synchronously moved. In such a case, the distance can be reliably kept constant, so that the transfer of the granular material from the discharge port to the second transport device can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a spreading system according to an embodiment of the present invention.

FIG. 2 is an overall front view of a spreading system according to an embodiment of the present invention.

FIG. 3 is an overall side view of the spreading system according to the embodiment of the present invention.

FIG. 4 is an overall side view of an operation state of the spreading system according to the embodiment of the present invention.

FIG. 5 is an enlarged side view of a main part showing a positional relationship between a first transport device and a second transport device of the dispensing system according to the embodiment of the present invention.

FIG. 6 is a plan view showing a direction in which earth and sand are scattered to a stocking place by the squirting system according to the embodiment of the present invention.

FIG. 7 is a flowchart of a procedure for distributing earth and sand in the dispensing system according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing, in one block, a procedure for distributing earth and sand of the dispensing system according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 dispensing system 11 earth and sand 12 fixed supply port 13 discharge port 14 movable conveyor 15 dispensing port 16 dispensing conveyor 20 first fixed conveyor 21 second fixed conveyor

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroyuki Morino 1-10-4 Minamidai, Kawagoe-shi, Saitama F-term in Obayashi Corporation Tokyo Machinery Factory (reference) 3F072 AA01 GA03 GA03 GA05 GA10 KA05

Claims (5)

[Claims] 1. A system for dispersing powders and granules, wherein the powders and granules are conveyed to a stocking place and spread out, whereby the powders and granules are stacked up. A first transport device positioned directly below the supply port, horizontally transporting the granular material received from the fixed supply port, and having a discharge port for the transported granular material movable in the transport direction; A direction that is located immediately below the discharge port of the first transport device, moves horizontally in synchronization with the movement of the discharge port, and intersects the particles received from the discharge port at right angles to the transport direction of the first transport device. And a second conveying device in which a discharge port for the horizontally transported powder and the transported powder is movable in the transport direction. 2. The method according to claim 1, wherein a pair of discharge ports of the first transport device are provided with the fixed supply port of the powder material interposed therebetween, and the direction of transport of the powder material by the first transport device can be switched between forward and reverse. The system according to claim 1, wherein 3. A discharge port of the second transport device is provided in a pair with a discharge port of the first transport device interposed therebetween, and a forward / reverse switching of a transport direction of the granular material by the second transport device is possible. The system for dispensing powdery or granular materials according to claim 1 or 2, wherein 4. A height measuring sensor for measuring a distance between the outlet and the top end of the granular material scattered and stacked from the outlet, and a measurement value of the height measuring sensor is provided. The system according to any one of claims 1 to 3, wherein the spout is moved from the position when the top end reaches a predetermined height based on the system. . 5. A horizontal measuring sensor for measuring a distance between the first transporting device and the second transporting device, and a discharge port of the first transporting device and a second measuring device based on a measurement value of the horizontal measuring sensor. The system for dispensing powdery and granular materials according to any one of claims 1 to 4, wherein the system is moved in synchronization with the transport device.