JPH0647417B2 - Storage tank - Google Patents

Description

The present invention relates to a storage tank for storing solids such as coal.

[Problems to be Solved by the Invention] A storage tank for storing solids such as coal has only a mechanism for receiving a stored material such as a receiving conveyor, and normally does not have a special mechanism for discharging. In fact, it is inefficient, and it is difficult to discharge the stored materials from the bottom side of the tank sequentially and efficiently even by the normal discharging method.

The present invention is based on the actual situation of conventional storage tanks, and is intended to rationalize the dispensing work by providing a delivery pipe or the like at the bottom of the tank as a dispensing mechanism that slurries and carries out stored materials.

[Means for solving problems]

In the present invention, the delivery work efficiency is improved by arranging a delivery pipe, which slurries the stored material and carries it out from the central portion toward the side wall in one rotation direction, in a spiral shape at the bottom of the cylindrical side wall.

On the side wall side end of the delivery pipe, a plumbing pile is installed upright for discharging the stored goods carried out by the delivery pipe above the side wall. A solid-liquid separator that separates and discharges the slurried stored material from water is installed above it, while a return pipe that returns the separated water between the lower part and the center of the delivery pipe to the center of the delivery pipe. Is piped.

〔Example〕

 The present invention will be described below with reference to the drawings illustrating an embodiment.

As shown in FIG. 1, a storage tank A of the present invention (hereinafter referred to as tank A) has a cylindrical side wall 1, a delivery pipe 2 arranged spirally below a bottom portion a thereof, and a side wall 1 side end portion thereof. The standing pipe 3 is provided upright, and the return pipe 4 is provided between the lower part of the standing pipe 3 and the center of the delivery pipe 2.

The delivery pipe 2 is the whole tank A shown in FIGS.
As shown in the figure, it is arranged along the shape in a culvert 5 which is laid in a spiral shape from the central part toward the side wall 1 under the bottom part a, and the delivery pipe 2, that is, the culvert 5 is provided on the bottom part a above it. Therefore, a dispensing outlet b for dropping the stored material in the tank A into the delivery pipe 2 is provided at a required interval.

FIG. 3 shows an arrangement example of the payout openings b, but the bottom a is formed in a hopper shape toward each of the payout openings b so that the stored items are dropped to any of the payout openings b. Further, as shown in FIG. 4, the dispensing outlet b and the delivery pipe 2 are connected by a cutting feeder 6 such as a reciprocating feeder that cuts out an appropriate amount of stored material from the dispensing outlet b and sends it into the delivery pipe 2.

In the delivery pipe 2, the water circulating through the pipe piles 3 and the return pipe 4 which will be described later flows from the central portion toward the side wall 1, and the stored matter forcedly pushed by the cutting feeder 6 is discharged by this water. It is made into a slurry and conveyed from the center to the side wall 1 side.

At the end of the delivery pipe 2 on the side wall 1 side, a pipe stand 3 is erected vertically from the end, and the pipe stand 3 discharges the stored items out of the tank A.

At the upper part of the pipe standing pile 3, there is provided a solid-liquid separation device 7 for separating the stored water and water when the stored product is discharged, and a recycle pump 8 for pumping the separated water. The stored goods carried out to the upper part of 3 are discharged in the state at the time of storage, and water is sent back to the lower part of the plumbing pile 3.

Further, a return pipe 4 for returning the water separated from the stored matter by the solid-liquid separation device 7 and the central portion of the delivery pipe 2 is connected to the lower portion of the pipe standing pile 3, and the water is delivered when the stored matter is discharged. Pipe 2, plumbing pile 3, return pipe 4
It will circulate inside.

On the outside of the side wall 1, as shown in FIG. 1, a receiving conveyor 9 for carrying the stored goods into the tank is installed toward the center of the tank A, and inside the tank A, a circle girder 10 is provided.
It is arranged so as to be supported by the girder 11 along the plane shape of.

On the circle girder 10, a swivel girder 12 that swivels around the center thereof is installed, and a shuttle conveyor 13 that carries the stored goods sent from the receiving conveyor 9 to the center to the outside of the circle girder 10 is installed on the swivel girder 12.

The stored products are evenly distributed in the tank A through the shuttle conveyor 13 by rotating the rotating girder 12.

〔The invention's effect〕

The present invention is as described above, and since the delivery pipe is provided at the bottom of the tank and the dispensing mechanism such as the plumbing pile is provided at the side wall side end thereof, the efficiency of the dispensing work can be improved and at the same time, the receiving operation can be performed. It is possible to efficiently dispense this in the order of stored materials.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view showing a bottom portion, and FIGS. 3-I and II are cross-sectional views showing a part thereof, a plan view, and FIG. FIG. 4 is a perspective view showing a payout opening. A ... storage tank, a ... bottom, b ... outlet, 1 ...
Side wall, 2 …… Delivery pipe, 3 …… Piping stand, 4 ……
Return pipe, 5 ... Culvert, 6 ... Cutting feeder, 7 ... Solid-liquid separator, 8 ... Recycle pump, 9
…… Receiving conveyor, 10 …… Circle girder, 11 …… Girder column, 12 …… Swivel gutter, 13 …… Shuttle conveyor.

Claims (1)

[Claims] 1. A delivery pipe is provided at the bottom of a cylindrical side wall, in which a stored material stored therein is slurried by flowing water, and a delivery pipe is carried out in a spiral direction from the central part toward the side wall. At the end of the side wall of the delivery pipe, a plumbing pile is installed to discharge the discharged stored material to the upper side of the side wall. The storage tank is characterized in that the device is provided with return pipes for returning the separated water to the central portion of the delivery pipe, respectively.