JPS61211234A - Silo and its operating method - Google Patents

Abstract

PURPOSE:To immediately deliver a bulk material without stacking it by selectively switching the discharge port at the lower end of a chute between two screw conveyers and a stacking conveyer to allow direct feeding. CONSTITUTION:The discharge port 47 of a chute 45 is provided at the direct feed operation position of a communicating port 51, and the bulk material is fed through the discharge port 47. Screw conveyers 41, 42 are rotated in W1, W2 directions, and the bulk material fed through the discharge port 47 is immediately conveyed to the disk column 2 side to allow direct feeding.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a silo for storing powder and granules (hereinafter referred to as granules).

[Background of the invention]

As a silo for storing granules, JP-A-58-17021
What is disclosed in No. 1, etc. is publicly known. As shown in FIG. 5, this type of silo is equipped with a container having an upright cylindrical side wall 1, and a disk column 2 for carrying out is erected at the center of the container. The lower end of the disk column 2 serves as an outlet 3. Between the disk column 2 and the side wall 1, a screw conveyor system [4] is suspended horizontally from above the container 1, and is capable of vertical movement and rotation in the horizontal direction. The granules are conveyed from above the container 1 onto the conveyor 5. Loading entrance 6. It is supplied to the screw conveyor device 4 through a screw conveyor 7 and a chute 8, and is moved to the outside by the screw conveyor 4. Screw conveyor 7, chute 8.
The screw conveyor device eL4 rotates in the horizontal direction as a unit.

9 suspends the screw conveyor device 4 with a rope 10;
It is a member that rotates the upper end of the side wall 1, and operates the row 110 to move the screw conveyor device [4 up and down. When discharging the granules in the container, a screw conveyor device Il is used.
! 4 is reversed and sent from the outer circumferential side to the disk column 2 side, inside the disk column 2, at the outlet 3, and on the screw conveyor 11. It is carried out through the conveyor 12.

The screw conveyor device 4 includes two screw conveyors, one of which is arranged in parallel in the horizontal direction. When stacking granules in the silo, two screw conveyors are rotated inward, and when discharging, one is rotated.

This is the top surface of 131 grains. - [Object of the Invention] The object of the present invention is to enable the granules supplied to one silo to be immediately discharged without stacking them.

[Summary of the invention]

The present invention provides a discharge port at the lower end of a chute for supplying granules to a screw conveyor device so that it can be selectively switched between two screw conveyors and a loading conveyor, thereby enabling direct delivery. It is something.

[Embodiments of the invention]

Hereinafter, the present invention will be explained starting from a first embodiment shown in FIG. The screw conveyor device 4 consists of two screw conveyors 41 and 42, a frame 43 that supports them, and the like. The chute 8 is vertically expandable and has a cylindrical shape. The lowest chute 45 rests on the frame 43. The chute 451 has a partition plate 46 diagonally provided and a discharge port 47 provided eccentrically. 48 shot 45 to 1
It is a lever for rotating 80 rotations, and can be used manually or mechanically.
Therefore, rotate it.

The solid line state of the partition plate 46 in FIG. 2 is the state in which loading is in operation, and the discharge port 47 is located above and outside of the center of the screw conveyor 41 that is rotated at times during loading. A communication port 50 is opened in the frame 43 below the discharge port 47 .

The state indicated by the dashed line of the partition plate 46 in FIG. 1 is the state at the time of direct feeding, and is the state where the chute 45 has been rotated 1800 times from the state indicated by the solid line. The discharge port 47 is the screw conveyor 4
Eight openings are opened above the screw conveyor 42 side adjacent to the center of the conveyor belt 1.

Of course, one more space between the screw conveyor 42 and the screw conveyor 42 can be placed above the screw conveyor 42 (closer to the screw conveyor 41 than the center). A communication port 15 is opened in the frame 43 below the discharge port 47 .

Various operations of this configuration will be explained.

To explain the discharging operation for discharging the granules in the container to the container side, as shown in Fig. 2, the screw conveyor 4
1.42 are rotated in the Wl lW2 direction, respectively, and the screw conveyor device 4 is horizontally rotated in the W5 direction. Also, the device 4 is gradually lowered. The granules are conveyed from the side wall 1 side to the disk column 2 side, pass through the disk column 2, sequentially pass through the outlet 3, the screw conveyor 11, and the conveyor 12, and are discharged.

To explain the operation of stowing to store one particulate material in a container, as shown in FIG. 3, the discharge port 47 of the chute 45 is set to the stowing operation position of the communication port 50. The granules are conveyor 5, loading port 6, screw conveyor 7, chute 8,
It is supplied to the screw conveyor 41 through the discharge port 47 and the communication port 50 of the chute 45. screw conveyor 4
2 has stopped rotating, and the screw conveyor 41 is W.
It rotates in three directions. Due to this rotation and the direction of the screw, the particles are conveyed toward the side wall 1 side.

Further, the screw conveyor device 4 is horizontally rotating in the W6 direction and is gradually rising.

A direct delivery operation in which granules supplied to a container are immediately transported without being stacked will be explained.

As shown in FIG. 4, the discharge port 47 of the chute 45 is set at the direct feed operation position of the communication port 51. The granules are supplied from the discharge port 47 in the same manner as in the above-mentioned dispensing operation. The screw conveyors 41 and 42 are the same as the above-mentioned delivery operation, Wl l
It is rotating in the W2 direction.

According to this, the granules supplied from the discharge port 47 are immediately
This is transported to the disk column 2 side, and direct feeding operation begins. Note that the amount of granules supplied from the discharge port 47 must be less than or equal to the amount conveyed by the rotation lζ of the screw conveyors 41 and 42 Wt and W2.

Furthermore, in addition to the above-mentioned direct feeding operation, when the screw conveyor device 4 is rotated one turn in the W5 direction and lowered in the same way as in the above-mentioned discharging operation, the granules stored in the container are also discharged and are discharged from the discharge port 3. amount will increase. According to this, even if the supply amount is small, a large amount can be carried out. In this case, the supply amount from the discharge port 47 must be below the payout volume of the payout operation.

As described above, since the direct delivery operation using silos has been made possible, there is no need to use a conveyor line in parallel with the silos, and the cost of equipment can be reduced.

As a means for switching the communication ports 50 and 51, for example, it is possible to make the chute into a bifurcated shape and provide a switching valve at the upper part of the chute. In addition, chute 8, screw conveyor 7
It is also possible to provide one carry-in port 6 that can be horizontally pivoted around the carry-in port 6, and to provide a cylinder device between the lower end of the chute 8 and the frame 43 for horizontal pivoting.

〔Effect of the invention〕

As described above, according to the present invention, direct delivery operation can be performed using a silo, so that equipment can be made inexpensive. Furthermore, if the I and the screw conveyor device are horizontally rotated during direct feeding operation, more particles can be delivered.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of a screw conveyor device according to an embodiment of the present invention, Fig. 2 is an explanatory diagram during unloading operation, Fig. 3 is an explanatory diagram during loading operation, and Fig. 4 is an explanatory diagram during direct delivery operation. Figure 1 is a vertical sectional view of a silo to which the present invention is applied. 1... Container side wall, 2... Disc column, 3... Outlet, 4... Screw conveyor device, 6... Carrying in Mouth, 7...
・Screw conveyor, 8...Chute, 10
...Rope, 41.42...Screw conveyor, 43...Frame, 45...
...Chute, 47...Discharge port, 50.51.
・・・・・・1 connection hole Figure 4 W5 Figure 5

Claims (1)

[Scope of Claims] 1. A silo for storing granules consisting of a container having an upright cylindrical side wall, a roof, and a bottom, wherein a disk column for carrying out the granules is erected in the center of the container. A screw conveyor device consisting of two screw conveyors horizontally arranged in parallel, with its lower end serving as an exit, is disposed between the disk column and the side wall, and is provided so as to be able to rotate horizontally and move up and down. In a silo formed by connecting a granule inlet and a screw conveyor device with a chute, the discharge port of the chute to the screw conveyor device is switched to a loading position and a position between the two screw conveyors. A silo that is characterized by the fact that it is possible. 2. A silo for storing granules consisting of a container having an upright cylindrical side wall, a roof, and a bottom, with a disc column for transporting granules set up in the center of the container, and the lower end of the silo for storing granules. A screw conveyor device consisting of two screw conveyors arranged in parallel in the horizontal direction is arranged between the disk column and the side wall, and is provided so as to be able to rotate horizontally and move up and down. and a screw conveyor device are connected by a chute, the discharge port of the chute to the screw conveyor device is arranged at a position between the two screw conveyors, and the granules are supplied from the chute and A method for operating a silo, characterized by operating a screw conveyor device for discharging.