JPS5926482A - Bridge prevention type storage tank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This is a bridge-preventing storage tank (with an anti-bridging type storage tank) which is capable of smoothly discharging substances that are easy to cause phenomena (difficult to descend and discharge), and allows the peripheral part near the inner wall surface 144 to be discharged downward at approximately the same speed as the central part. related.

Conventionally, this type of storage tank has an inner wall that is vertical or wide-spread, with a smooth surface that reduces as much as possible the frictional force that garbage receives from the inner wall, and allows it to naturally descend as it is discharged from the discharger at the bottom. However, there is a tendency for a bridging phenomenon to occur, making it difficult to descend, or for only the central part to descend, causing the accumulated material in the vicinity of the inner wall surface to stagnate.

For this reason, in conventional storage tanks, methods have been tried, such as applying vibration to the inner wall surface to encourage the descent, or ejecting air from the wall surface to the inside to encourage the descent. These methods have no effect at all.

The present invention has been made to eliminate such drawbacks, and the storage capacity of the storage tank is maximized by eliminating stagnation by sequentially lowering the stored materials in the peripheral area near the inner wall surface at approximately the same speed as that in the central area. It is σ that can be exerted to the maximum extent.

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

In the figure, (1) is a cylindrical vertical storage tank body;
) Overflowing the inner wall surface of the curved surface of the inner wall and the generatrix of the curved surface of the inner wall, vertically long strip-shaped slide plates (2) of the required width of the flat 11 floor are arranged as many times as required. The slide plate (2) has one edge parallel to the generatrix line bent into a hook shape and raised up (and the other side edge bent and raised up, and then folded back into an R shape). Slide board (2)
The comrades have one side edge and the other side edge sequentially fitted and joined together, and are slidable in the direction of the generatrix. In addition, the upper end of each slide plate (2) is connected to a cylinder (3) disposed on the outside of the upper part of the storage tank body (11).
This allows the slide plate (2) to become independent and slide with only a predetermined stroke.

An apron (4) is hung from the canopy (5) concentrically overlapping the upper end of the cylinder formed by the slide plate (2).

The facing-C1 stored material (6) is charged through an input DC71 provided at an appropriate position on the canopy (5), and is discharged from an outlet (8) at the bottom of the storage tank body (11).

Next, the operation will be explained using FIGS. 4(a) to 4).

When the stored material (6) is stored in the tank through the input port (force), the slide plate (2) group is pushed against the inner wall surface of the storage tank body (1) by the pressure of the stored material (6).

First, only the slide plate (2a) is pulled up and held by the cylinder (3) as shown in Figure 4 (a), and then only the slide plate (2b) is pulled up and held by the cylinder (3) as shown in the same figure (-). do. Next, as shown in the same figure (c), when the slide plate (2c)'Y is pulled up, the entire slide plate (2) becomes in a pulled up state. These slide plates (2 (Z) (2
6) In the pulling operation of (2C), if the accumulated material (6) is a substance such as crushed garbage that is entangled with each other, the garbage, etc. will not follow the individual rises of the slide plate (2). When the objects are lowered all at once, as shown in FIG. 4), the stored objects (6) that are leaning against each other lose their place to lean on and move down as the slide plate (2) descends.

-1- As shown in Figure 4 (a) to 4), by constantly repeating the cycle of operation at low speed ゛C, the accumulated material (6) may stagnate due to the bridging phenomenon, remain partially for a long time, or only in the central part. The phenomenon of preferential descent of

Among them, the apron (4) prevents the stored material (6) from entering between the slide plate (2) and the storage tank body (1) when it is introduced from above.

Although the above embodiments relate to cylindrical storage tanks, they may also be rectangular storage tanks or storage tanks with irregularly shaped cross sections. It may be a rectangular storage tank with a slightly downward convergence.Furthermore, if the slide plates do not have to be moved individually by cylinders, but have the same behavior, one cylinder may be used to move the required number of slide plates.Also, In the second embodiment, the operating cycle was constructed using a set of six slide plates, but a set of four slide plates was used.
It may be composed of a set of five sheets, etc. In this case, it goes without saying that the total number of slide plates will be a multiple of 4, a multiple of 5, etc.

As described above (according to the present invention), (1) the bridging phenomenon can be completely eliminated for the accumulation of substances that are likely to be accompanied by the bridging phenomenon; (11) the descending speed near the wall surface is reduced at approximately the same speed as the central part; (iiQ) The surface of the slide plate in contact with the accumulated material is always in relative sliding, so a smooth surface is maintained, and the accumulated material does not stick to the wall surface or harden. (1v) No bridging phenomenon occurs. Therefore, compared to conventional products, it exhibits excellent effects such as being able to stack and tow higher.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a storage tank according to the present invention, FIG. 2 is a view taken along the line X-X in FIG. 1, FIG. 6 is an enlarged view of the Y section in FIG. 2, and FIG. )(C) and (C) are explanatory views of the operation of the present invention. (1) is the storage tank body, +21 (2α) (2b) (2C) is the slide plate, (3) is the cylinder, (4) is the apron, (
5) is the canopy, (6) is the storage material, (7) is the inlet, (8)
indicates the discharge location. Patent Applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent Applicant Agent Figure 1 Figure 3

Claims (1)

[Claims] 1) A bridging-preventing type storage tank characterized in that slide plates having a length of 50 mm are arranged side by side and are disposed on the entire surface along the inner surface of the vertical storage tank, and each slide plate is configured to be slid in the vertical direction by a predetermined amount.