JP4040729B2 - Dispensing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a payout device used when paying out a material to be discharged (stored) in a storage, for example, a bulk material such as coal, from a discharge outlet provided on a bottom wall of the storage.
[0002]
[Prior art]
Generally, bulk materials such as coal, slag, chips and iron ore are housed in a hopper-type storage. Discharge of these bulk materials is provided on the bottom wall of the storage using a discharge device provided at the bottom of the storage. It is paid out from the designated outlet. For example, it is widely used in self-unloader type ships and steelworks.
[0003]
As shown in FIG. 7, this dispensing device has a slit-shaped dispensing outlet 4a formed in the center in the width direction of the bottom wall 3a in the storage 2a having a hopper shape. The rotating wheel 7a that moves while rotating along 4a reciprocates on the inner surface of the bottom wall 3a, and the bulk material 1a in the storage 2a is discharged from the outlet 4a and along the outlet 4a below the bottom wall 3a. It is made to fall on the arranged delivery belt conveyor 6a.
[0004]
By the way, the dispensing device 5a, as described above, rotates the rotating wheel 7a on the bottom wall 3a and moves horizontally on the bottom wall 3a in order to dispense the bulk material 1a present in the storage 2a. In order to allow the rotary foil 7a to rotate smoothly on the bottom wall 3a and to move horizontally, the rotary foil 7a is disposed between the rotary foil 7a and the bottom wall 3a and between the rotary foil 7a and the side wall 8a. A suitable gap is provided between the two.
[0005]
For this reason, the bulk material 1a remains in the gap when the bulk material 1a in the storage 2a is dispensed.
[0006]
This residual bulk 1a is used to change the type of bulk 1a accommodated in the storage 2a or when handling various types of bulk 1a such as a ship, the bulk 1a remaining in the gap is manpowered. In the case of the large storage 2a, it is removed using a machine such as a bulltozer. The bulk material 1a remaining in these gaps is pressed and solidified by the rotating foil 7a and the bottom wall 3a, and it is particularly difficult to remove it.
[0007]
Accordingly, the present applicant has proposed (not shown) a dispensing device provided with a scraper (not shown) in the rotating wheel 7a so as to remove the loose matter remaining in the gap.
[0008]
According to this dispensing device, it is possible to reliably dispense the residue.
[0009]
[Problems to be solved by the invention]
However, the operation of attaching / detaching the scraper to / from the rotating wheel is generally performed at a standby position of the rotating wheel, which is a narrow space, and further, loose particles or powder particles thereof are attached to the scraper mounting surface of the rotating wheel. For this reason, there are problems that work efficiency is low and a great deal of labor and time are consumed.
[0010]
The present invention has been made in view of such points, and an object of the present invention is to provide a dispensing device that can easily and efficiently perform bottom lifting during dispensing.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is characterized in that a scraper that contacts a bottom wall of a storage is provided on a foil blade of a rotary foil so as to be movable up and down, and the scraper is remotely driven by a wireless electric cylinder .
[0012]
In addition , the scraper can be moved in and out from the scraper working surface, and the distance from the bottom wall can be adjusted when descending.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described.
[0014]
1 to 6 show an example of a preferred embodiment of a dispensing device according to the present invention. FIG. 1 is a sectional view of the device, FIG. 2 is a plan view of a foil of the device, and FIG. FIG. 4 is an enlarged cross-sectional view of the main part of FIG. 2, FIG. 5 shows a portion of the foil blade, (a) is a side view showing a state during normal cargo handling, and (b) is a state when the bottom is swept. FIG. 6 shows the main part of the foil blade, (a) is an AA enlarged sectional view of FIG. 5 (a), (b) is an enlarged sectional view of BB of FIG. 5 (b). FIG.
[0015]
The storage 2 is a hopper type container having a flat bottom wall 3. An article to be delivered, for example, a bulk material 1 such as coal, is housed (stored) in a storage 2 formed of a hopper type container.
[0016]
The bottom wall 3 of the storage 2 is provided with a slit-shaped outlet 4 for discharging the bulk material 1 in the center in the width direction over the length direction and on the inner side of the bottom wall 3. A mountain-shaped roof 5 is disposed in the longitudinal direction along the outlet 4, and a mountain-shaped space 6 is formed between the roof 5 and the bottom wall 3.
[0017]
In the mountain-shaped space 6, a drive mechanism 8 having a rotating wheel 7 supported at the lower end is supported on rails 9, 9 arranged in the length direction so as to be able to reciprocate.
[0018]
The rotating wheel 7 is reciprocated along the payout opening 4 on the inner surface of the bottom wall 3 while rotating around the rotating shaft 81 by driving of the driving mechanism 8, and the bulk material 1 in the storage 2 is moved to the bottom wall 3. Are dropped onto a payout belt conveyor 10 disposed below the payout opening 4. Therefore, the bulk material 1 dropped on the belt conveyor 10 is conveyed to a predetermined place by the belt conveyor 10.
[0019]
Further, as shown in FIG. 2, the rotary foil 7 includes a circular support plate 71 disposed in the center and a plurality of foil blades 72 having an eyebrow shape provided around the support plate 71. The foil blade 72 is a support plate. The foil blades 72 constituting the rotating foil 7 are provided with a scraper 11 for holding the bulk material 1 on the bottom wall 3. .
[0020]
As shown in FIGS. 3 and 4, the scraper 11 includes a scraper body 12 having both appropriate rigidity and flexibility, such as rubber, and a metal holding plate that holds an upper outer periphery of the scraper body 12. 13. The scraper main body 12 is exposed only in the vicinity of the tip portion that becomes the scraper action surface 14.
[0021]
Each scraper 11 is driven up and down by driving means. This driving means has, for example, a plurality of wireless electric cylinders 15 provided on each foil blade 72, and each cylinder is attached to a scraper via a rod 16. The electric cylinder 15 is a wireless cylinder, and although not shown, each foil blade 72 is provided with a receiver or the like that receives a command signal, and is moved up and down by remote operation of a remote device. It can slide up and down as much as possible.
[0022]
Accordingly, the electric cylinder 15 is driven up and down by remote control to cause each scraper 11 to project downward, and the distance between the scraper operating surface 14 and the bottom wall 3 is determined based on the loading status, the type of loose material, and how the scraper 11 is reduced. Can be fine-tuned appropriately.
[0023]
The distance between the scraper working surface 14 and the bottom wall 3 is adjusted by measuring the distance using a sensor such as a limit switch or an infrared sensor provided on the bottom wall 3 or the scraper 11, and based on the signal. Since the operation of 11 is controlled, it can be controlled very easily.
[0024]
According to such an embodiment of the present invention, the distance between the scraper working surface 14 and the bottom wall 3 of the storage 2 is finely adjusted in accordance with the cargo handling situation, the type of material to be paid out, the reduction degree of the scraper 11, and the like. (Adjustment from the lower surface t of the foil blade 72 to the 0 position where the scraper 11 contacts the bottom wall 3), the distance between the scraper working surface 14 and the bottom wall 3 is always properly maintained.
[0025]
5 (a) and 6 (a), the scraper 11 is housed in the wheel blade 72 as the raised position, and when the bottom is lifted, as shown in FIGS. 5 (a) and 6 (a). As shown in b), since the scraper 11 is lowered and projected to perform the dispensing, the scraper action surface 14 that works well allows the loose material 1 to be smoothly dispensed and the loose material 1 to remain.
[0026]
Further, according to the embodiment of the present invention, the scraper 11 is slid by remote operation to adjust the distance between the scraper working surface 14 and the bottom wall 3, so that the scraper 11 can be replaced in a narrow place. Such work is no longer necessary. Further, since the adjustment work of the scraper 11 is performed without stopping the apparatus, it can be performed even if the payout work is continued, and the work efficiency is not lowered.
[0027]
The scraper 11 may be provided for each of the foil blades 72 constituting the rotary foil 7, but various types such as the type of the bulk material 1 to be delivered, the size of the rotary foil 7, the number of the foil blades 72, etc. Depending on the conditions, some foil blades 72 may be provided instead of all. In this case, the equipment cost can be reduced.
[0028]
【The invention's effect】
As described above, according to the present invention, it is possible to quickly perform the bottoming operation with an extremely simple operation without requiring the operation of attaching and detaching the scraper in a narrow place.
[0029]
In addition, when the scraper can be moved in and out by remote control, the bottom-sparing operation can be performed more easily and the distance from the wall of the storage can be adjusted. The working surface of the scraper can be positioned at an appropriate position in accordance with the type of the scraper and how much the scraper is reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of an embodiment of a payout device according to the present invention.
FIG. 2 is a plan view of the foil of the apparatus of FIG.
3 is an enlarged plan view of a main part of FIG.
4 is an enlarged cross-sectional view of a main part of FIG.
FIG. 5 is a side view showing a state (a) at the time of normal cargo handling and a state (b) at the time of bottom lifting of the foil blade part.
6 is an AA enlarged sectional view of FIG. 5A and an BB enlarged sectional view of FIG. 5B. FIG.
FIG. 7 is a side view of a conventional dispensing device.
[Explanation of symbols]
1: Bulk material, 2: Storage, 3: Bottom wall, 4: Discharge outlet, 7: Rotating wheel, 11, 21: Scraper, 14, 26: Scraper action surface, 15, 17, 24: Electric cylinder, 27: Side wall 72, 73: foil blades.

Claims (2)

A rotating foil having a plurality of foil blades is run along a bottom wall of a storage box having a hopper shape, and loose pieces in the storage room are disposed below the bottom wall from a slit-like outlet provided in the bottom wall. a dispensing device for paying out on the payout conveyor has said and scraper in contact with the foil blade rotating wheel to the bottom wall of the reservoir is provided to be movable up and down, the scraper is remotely driven by wireless the electric cylinder dispenser you wherein a.   2. The dispensing device according to claim 1, wherein a distance between the scraper and the bottom wall can be adjusted when the scraper descends.

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