JPH10273230A - Dispensing device for storage facility and its dispensing method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the accuracy of the dispensing amount of storage, improve the controllability of the dispensing device, and improve the maximum allowable dispensing amount,
Improve payout ability. SOLUTION: A slit is formed at the bottom of the storage facility,
What is claimed is: 1. A dispensing device, wherein a plurality of paddle blades are arranged on a cutting wheel, wherein a plurality of paddle blades are arranged on the cutting wheel, by moving a storage object toward the slit by rotating a cutting wheel below the slit and dispensing from the slit. A rotation driving means for increasing the rotation speed of the cutting wheel while passing through the slit to reduce the temporal change of the dispensing amount, and cutting the rotation of the paddle blade while the paddle blade passes through the slit. Control means for making the payout amount substantially constant is added to the rotation drive means of the delivery wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing apparatus for a storage facility and a dispensing method thereof.

[0002]

2. Description of the Related Art JP-A-7-309448 discloses that
"A storage device cutting device" is described.

In this technical example, for example, in a coal-fired power plant or the like, a storage facility such as coal is stored in a storage facility, and the storage facility discharges the storage facility from a bottom portion of the storage facility by a cutting wheel. . A slit is formed at the bottom of the storage facility, and both side edges of the slit are flat dispensing shelves.Below the slit, a belt conveyor and a traveling cart are provided. And a cutting wheel for scraping a storage item on the dispensing shelf from the slit is rotatably mounted.

When such a cutting device is operated, while the plurality of paddle blades pass through the slit, the paddle blades do not pay out. As time passed, it fluctuated periodically with an amplitude before and after a fixed payout amount.

[0005]

However, when the accuracy of the payout amount is required, it is not preferable that the payout amount fluctuates. The carrying capacity of the belt conveyor is set by the maximum allowable loading capacity, but the maximum allowable loading capacity must be given the fluctuating maximum value of the payout quantity. Because of its large size, it is necessary to increase the size of the entire apparatus in order to improve the carrying capacity of the belt conveyor.

The present invention has been made in view of the above circumstances, and aims to achieve the following objects. To increase the accuracy of the dispensed amount of storage. To enhance the controllability of the dispensing device. Improve the maximum allowable amount of payout and improve payout ability. Reduce capital investment at the design stage by improving the maximum allowable amount of payout.

[0007]

A slit is formed at the bottom of the storage facility, and a belt conveyor is arranged below the slit. Discharge means for rotatingly scraping the stored articles from the slit onto the belt conveyor is provided. In the dispensing device for storage equipment to be arranged, the dispensing means is provided with a cutting wheel whose rotation speed is variable so as to make the dispensing amount constant, and a traveling vehicle that can travel along the slit. A cutting wheel is rotatably mounted on the traveling vehicle, and a chute for guiding the storage material from the slit onto the belt conveyor is provided, and traveling driving means for traveling and driving the traveling vehicle. Is arranged. The cutting wheel is provided with a plurality of paddle blades, and rotation driving means for increasing the rotation speed of the cutting wheel while the paddle blades are passing through the slit to reduce the time-dependent change in the dispensing amount is provided. Further, control means for making the payout amount substantially constant is added to the rotary drive means. When increasing the rotation of the cutting wheel, the control means compensates for a decrease in the payout amount when the cutting wheel is rotated at a constant speed by increasing the speed based on a sine waveform. The cutting wheel has a plurality of blades, for example, four or six blades. As detection means for detecting the payout state, rotation detection means for detecting rotation data such as the rotation position and rotation speed of the cutting wheel, and travel detection means for detecting travel data such as the travel position and travel speed of the traveling vehicle And a payout amount detecting means for detecting a payout amount of the stored goods paid out to the belt conveyor. An input means is provided for setting and inputting a set value of the reference payout amount and the like. A storage means is provided for storing payout conditions including the rotation data of the cutting wheel, the travel data of the traveling vehicle, the payout amount of the belt conveyor, the reference payout amount, and the like, and the set value of the reference payout amount. The control means calculates a payout condition based on the payout state detected by the detection means, stores the payout condition in the storage means, and pays out from the storage means based on the set value such as the reference payout amount input from the input means. In addition to reading out the condition, a control signal is output based on the payout condition and the detection data output from the detection unit so that the payout amount becomes uniform in time, and the rotation control unit and the traveling drive unit are controlled by the control signal. I do. It is provided with display means for displaying the set value inputted from the input means based on the control signal and the detection data outputted from each detection means. The rotation drive means is provided with an oil motor, and a technique is employed in which the flow rate of oil supplied to the oil motor is controlled based on a control signal output from the control means. While the plurality of paddle blades in the cutting wheel are passing through the slit, the rotation speed of the cutting wheel is increased to reduce a temporal change in the dispensed amount. The cutting wheel is controlled so that the payout amount is substantially constant. When the rotation of the cutting wheel is accelerated, a decrease in the payout amount when the cutting wheel is rotated at a constant speed is compensated for by increasing the speed based on a sine waveform. The payout condition for keeping the payout amount constant is stored, the number of paddle blades of the cutting wheel is n, and the cycle of the rotation speed change based on the sine waveform is the constant speed rotation cycle state of the cutting wheel. The rotation of the cutting wheel is controlled so as to be 1 / n of the average rotation cycle in. Assuming that the number of blades of the cutting wheel is 4, the cycle of the rotation speed change based on the sinusoidal waveform of the cutting wheel is set to １ ／ of the rotation cycle in the constant speed rotation state. The initial phase of the rotation speed change of the cutting wheel is set based on the data stored in the storage means. The set value input from the input means is used as the value of the average rotation speed of the cutting wheel or the reference payout amount per unit time. When the dispensing device is controlled, the setting value input from the input means and the detection data output from each detection means are displayed on the display means based on the control signal output from the control means.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of the present invention. 1 to 5, reference numeral 1 denotes storage equipment, 2 denotes payout means, 3 denotes detection means, 4 denotes control means, 5 denotes input means, 6 denotes storage means, 7 denotes display means, 14
a is a dust collecting duct, 14b is a traveling hood, 14c is a connecting duct, 14d is an inspection sidewalk, 14e is a dust collecting hood, 17 is a power supply device for supplying power to the traveling vehicle 21, 21 is a traveling vehicle,
C is a store.

As shown in FIG. 1, the storage facility 1 has a slit 12 formed at the bottom, and both sides of the slit 12 are substantially flat dispensing shelves 13, and a housing is provided so as to cover above the slit 12. 14 are formed and the slit 1
2, a belt conveyor 15 extending in the longitudinal direction of the slit 12 is arranged, and a guide rail 16 is arranged in parallel with the belt conveyor 15.

As shown in FIG. 1, the dispensing means 2 includes a traveling vehicle 21 which can travel along the slit 12 by the guide rail 16 and a cutting wheel 22.

The traveling carriage 21 has traveling wheels 21a for traveling on the guide rails 16 and scrapes C on the dispensing shelves 13 on both sides of the storage facility 1 from the slits 12 onto the belt conveyor 15. A cutting wheel 22 that is rotatably mounted on the conveyor, a chute 23 for guiding the scraped storage material C onto the belt conveyor 15,
Rotation driving means 24 for driving the cutting wheel 22 to rotate,
A traveling drive means 25 for driving the traveling vehicle 21 is provided.

As shown in FIGS. 1 and 2, the cutting wheel 22 is provided with, for example, four paddle blades 22a, and is rotatable separately for each of the alternately arranged paddle blades 22a. And is driven.

Alternatively, as shown in FIG. 1 and FIG. 3, the cutting wheel 22 is configured such that a plurality of paddle blades 22a, for example, four are integrally driven.

The chute 23 is, as shown in FIG.
It is formed on both sides of the cutting wheel 22 so as to extend in the longitudinal direction of the traveling vehicle 21 and to avoid interference with the rotation driving means 24.

The rotation drive means 24 includes, for example, an oil motor and oil supply means connected to the oil motor so that the flow rate can be adjusted. The rotation speed of the oil motor is controlled by the oil flow rate.

The traveling drive means 25 is disposed on the traveling carriage 21 in the form of, for example, an oil motor, and is disposed so as to rotate the traveling wheels 21a.

The detecting means 3 detects running data such as a running position and a running speed of the traveling vehicle 21.
1, a rotation detecting means 32 for detecting rotation data such as a rotation position and a rotation speed of the cutting wheel 22, and a payout amount detecting means 33 for detecting a payout amount of the stored goods paid out to the belt conveyor 15. It shall be.

As shown in FIG. 1, the traveling detecting means 31
For example, a rotary encoder is provided on the traveling vehicle and detects the rotation of the traveling wheel 21a. The rotary encoder is connected to the control means 4 and can output detection data.

The rotation detecting means 32, as shown in FIG.
The rotary shaft is connected to the drive shaft of the cutting wheel 22 and is, for example, a rotary encoder that detects the rotation of the cutting wheel 22. The rotary encoder is connected to the control unit 4 and can output detection data.

As shown in FIG. 1, a plurality of payout amount detecting means 33 are arranged on the belt conveyor 15, for example, a load cell arranged below the support base 51a of the belt conveyor 15, and a load applied to the support base 15a. Is detected to detect the loaded amount of the belt conveyor 15, and is connected to the control means 4 so that the detection data can be output.

The control means 4 is, for example, a computer, and is connected to an input means 5 for inputting data and instructions, a storage means 6, and a display means 7.

The storage means 6 stores rotation data of the cutting wheel 22, travel data of the traveling vehicle 21, and the belt conveyor 15.
And the payout condition, the set value of the reference payout amount, and the like, which are made up of the payout amount and the reference payout amount input from the input means 5.

The display means 7 displays the set value input from the input means and the detection data output from each detection means based on the control signal output from the control means.

Hereinafter, the dispensing state of the dispensing device of such a storage facility will be described.

[Constant Rotation Dispensing State Storage Step] First, the rotation state of the cutting wheel 22 is set to constant rotation, and FIG.
The constant speed rotation state data as shown in (1) is detected by the detection means 3 and the constant speed rotation state data is stored in the storage means 6. The constant-speed rotation state data includes traveling data such as a traveling position and a traveling speed of the traveling vehicle 21 detected by the traveling detecting means 31 and a rotational position and a rotating speed of the cutting wheel 22 detected by the rotation detecting means 32. And the payout amount of the stored goods paid out to the belt conveyor 15 detected by the payout amount detecting means 33, and the detection and storage are performed at a plurality of rotation speeds.

[Disbursement Condition Calculation Step] Based on the constant-speed rotation state data, the control means 4 controls the traveling conditions such as the traveling position and traveling speed of the traveling vehicle 21 and the cutting wheel 2
The payout condition including the rotational condition such as the rotation position and the rotational speed of No. 2 and the payout amount of the storage material paid out to the belt conveyor 15 is calculated by setting the payout amount to be constant, and the payout condition is calculated. It is stored in the storage means 6.

Among the payout conditions, the rotation condition of the cutting wheel 22 is set such that a change in the cutout amount is canceled by a change in the rotation speed of the cutting wheel 22. This is because a plurality of paddle blades 22 a arranged on the cutting wheel 22 pass through the slit 12 when the storage C is dispensed from the slit 12 at the bottom of the storage facility 1 by rotating the cutting wheel 22. In the meantime, the rotational speed of the paddle blade 22a is increased to reduce the temporal change of the payout amount,
Further, the payout amount is made substantially constant. At this time, the control means is set so as to compensate for the decrease in the payout amount when the cutting wheel 22 is rotated at a constant speed by the speed increase based on the sine waveform, and controls the rotation driving means 24 for driving the cutting wheel 22. 4 is set as the control signal. Especially,
For example, the number of paddle blades 22a of the cutting wheel 22 is four, and the cycle of the rotation speed change based on the sine waveform is one-fourth of the average rotation cycle in the constant-speed rotation cycle state of the cutting wheel 22. It is set that the rotation of the cutting wheel 22 is controlled in advance. The initial phase of the change in the rotation speed of the cutting wheel 22 passes through the slit 12 in accordance with the phase of the periodic change in the discharge amount of the stored material discharged to the belt conveyor 15 shown in FIG. The payout amount is set to be constant based on the period during which the payout is performed.

[Control Driving Step] The control means 4 outputs a control signal based on the payout condition read out from the storage means 6 and a set value such as a reference payout amount input from the input means 5. And drives the rotation driving means 24 based on the control. The set value input from the input means 5 is the value of the average rotation speed of the cutting wheel 22, the value of the average rotation cycle, or the reference payout amount per unit time.

The rotation driving means 24 controls the rotation of the cutting wheel 22 by changing the rotation state of the oil motor by controlling the oil flow rate based on the control signal output from the control means 4.

As shown in FIG. 2, the rotation driving means 24
The paddle blades 22a are synchronously controlled by the control means 4 so as to maintain the dispensing state in which the paddle blades 22a are located at substantially 90 degrees from each other, or as shown in FIG. The cutting wheel 22 is driven to rotate, and in this state, the traveling carriage 21
Is moved along the slits 12, and the storage wheels C on the payout shelves 13 on both sides are cut by the cutting wheel 22.
Is simultaneously scraped from the slit 12 onto the belt conveyor 15 through the chute 23, and the storage C is discharged from the storage facility 1.

At this time, the rotational speed of the cutting wheel 22 is increased while the paddle blade 22a is passing through the slit 12 in accordance with the control signal of the control device 4 to reduce the temporal change of the dispensing amount, thereby making it almost constant. To At this time,
A decrease in the payout amount when the cutting wheel 22 is rotated at a constant speed is compensated for by increasing the speed of the cutting wheel 22 based on the sine waveform, and the cycle of the sine waveform is an average rotation period in the constant speed rotation state of the cutting wheel 22. Therefore, the payout is performed so that the payout amount becomes constant by canceling the periodic fluctuation of the payout amount at the time of the constant speed rotation.

At this time, the set value input from the input means 5 and the detection data output from the detection means 3 are displayed on the display means 7 based on the control signal output from the control means 4.

[Payout Amount Detecting Step] At the same time, the payout amount detecting means 33 detects the payout amount of the storage material paid out to the belt conveyor 15 and the traveling detecting means 31.
Detects traveling data such as the traveling position and traveling speed of the traveling vehicle 21, and the rotation detecting means 32
The rotation data such as the rotation position and the rotation speed are detected, and the detected data is output to the control means 4.

[Operation Adjusting Step] The control means 4 determines whether or not the payout amount is substantially constant based on the detection data. If the payout amount is determined to be constant, the current payout state is maintained. In the case of a judgment, a control signal is outputted to the rotation drive means 24 and the travel drive means 25 so as to change the payout state such as the rotation state of the cutting wheel 22 based on the payout condition read out from the storage means 6.

At this time, on the basis of the control signal output from the control means 4, the set value input from the input means 5 and the payout state comprising the detection data output from the detection means 3 are displayed on the display means 7. You.

After the detection means 3 detects that the specified payout amount has been reached, the control means 4 outputs a control signal indicating the end of the payout, and ends the payout.

The cutting wheel 22 is, as shown in FIG.
It is also possible to use six paddle blades 22a or other paddle blades.

[0038]

According to the dispensing apparatus and method for dispensing storage equipment of the present invention, the following effects can be obtained. (1) By changing the average rotation period of the extraction wheel in the constant-speed rotation state of the extraction wheel and the rotation speed from the average rotation period, it is possible to improve the accuracy of the amount of discharged stock. (2) Since the rotation of the cutting wheel is controlled so as to cancel the periodic change in the payout amount and the payout amount is constant, there is no need to consider the period change amount with respect to the average payout amount. And the payout ability can be improved. (4) By improving the maximum allowable amount of payout, there is no need to add a period change to the average payout amount, so that capital investment in the design stage can be reduced. (5) The controllability of the payout device can be improved by detecting the payout amount by the detecting means, setting the payout condition, and controlling by the control means.

[Brief description of the drawings]

FIG. 1 is a front cross-sectional view including a block diagram illustrating an embodiment of a dispensing apparatus and a dispensing method of a storage facility according to the present invention.

FIG. 2 is a plan view showing a cutting wheel of the storage facility of FIG.

FIG. 3 is a plan view showing a cutting wheel of the storage facility of FIG. 1;

FIG. 4 is a plan view showing a cutting wheel.

FIG. 5 is a graph showing a change over time of a payout amount in a state where a cutting wheel is rotated at a constant speed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Storage equipment 2 ... Dispensing means 3 ... Detection means 4 ... Control means 5 ... Input means 6 ... Storage means 7 ... Display means 12 ... Slit 13 ... Dispensing shelf 14 ... Housing 14a ... Dust collection duct 14b ... Traveling hood 14c ... Connection Duct 14d Inspection sidewalk 14e Dust collecting hood 15 Belt conveyor 15a Support base 16 Guide rail 17 Feeding device 21 Running truck 21a Running wheels 21b Case 22 Cutting wheel 22a Paddle blade 23 Chute 24 ... Rotation drive means 25 ... Travel drive means 31 ... Travel detection means 32 ... Rotation detection means 33 ... Payout amount detection means C ... Storage

Claims (8)

[Claims] 1. A slit (1) is provided at the bottom of a storage facility (1).
2) is formed, a belt conveyor (15) is arranged below the slit, and the storage (C) is moved toward the slit by the rotation of the cutting wheel (22) to be discharged from the slit. In the dispensing device, a plurality of paddle blades (22a) are disposed on a cutting wheel, and while the paddle blades pass through the slit, the rotation speed of the cutting wheel is increased to reduce a temporal change in a dispensed amount. A dispensing device for a storage facility, comprising: 2. The dispensing device for storage equipment according to claim 1, wherein a control means (4) for making the dispensed amount substantially constant is added to the rotary drive means (24). 3. The control means (4) includes a cutting wheel (2).
3. The dispensing of the storage facility according to claim 1, wherein, when the rotation is accelerated, the decrease in the dispensing amount when the cutting wheel is rotated at a constant speed is compensated by increasing the speed based on a sine waveform. apparatus. 4. A rotation detecting means (32) for detecting rotation data such as a rotation position and a rotation speed of a cutting wheel (22) as a detection means (3), and detecting a dispensed amount of the dispensed stock. Input means (5) for setting and inputting a set value of a standard payout amount and a storage means (6) for storing payout conditions and set values of a standard payout amount. ) And display means (7) for displaying the set value input from the input means and the detection data output from the detection means based on the control signal output from the control means (4). The dispensing device for a storage facility according to any one of claims 1 to 3. 5. A slit (1) at the bottom of the storage facility (1).
2) A method of discharging the stock (C) by rotating the cutting wheel (22) from the cutting wheel (22), wherein a plurality of paddle blades (22a) in the cutting wheel pass through the slits. A method for dispensing storage equipment, characterized in that the rotation speed is increased to reduce the temporal change in the dispensed amount. 6. The method according to claim 5, wherein the dispensing wheel (22) is controlled so that the dispensing amount is substantially constant. 7. The method according to claim 1, wherein when the rotation of the cutting wheel is accelerated, a decrease in the payout amount when the cutting wheel is rotated at a constant speed is compensated for by increasing the speed based on a sine waveform. 7. The method for dispensing storage equipment according to 5 or 6. 8. A payout condition for keeping the payout amount constant is stored, the number of paddle blades (22a) of the cutting wheel (22) is n, and the rotation speed based on a sine waveform of the cutting wheel. 7. The wheel rotation control is performed such that the change cycle is 1 / n of the average rotation cycle in the constant speed rotation cycle state.
Or the method for dispensing storage equipment according to 7.