JPH07241453A - Device for storing and discharging granular material - Google Patents

Abstract

PURPOSE:To reduce the production cost and to improve volume efficiency by miniaturizing a baffle and to provide a device for storing and discharging granular material capable of uniformly discharging and mixing the granular materials. CONSTITUTION:A baffle 5 for dropping the granular material in a vertical cylindrical vessel 1 in a mass flow is formed in the vessel 1 to constitute a device for storing and discharging granular materials. The baffle 5 is inclined downward from the center of the vessel 1 toward the peripheral wall of the vessel 1 to form a clearance between it and the peripheral wall at the lower part in the vessel 1. A partition wall 8 separating the clearance, extending in the vertical direction and opposed to the peripheral wall is continuously formed in the circumferential direction between the baffle 5 and the peripheral wall, and a space 21 piercing the clearance and vertically extended is secured.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an upright cylindrical container,
The present invention relates to a particulate matter storage / discharge device provided with a baffle plate for dropping the particulate matter in a container by mass flow, such as a particulate matter mixing device and a silo.

[0002]

2. Description of the Related Art FIG. 9 is a partial vertical cross-sectional view showing a granular material mixing device which is an example of a granular material storage / discharge device.
FIG. 10 is a sectional view taken along line XX of FIG. 1 is an upright cylindrical container, 2a is an inlet of the container 1, 2b and 2c are outlets, 3 is an air vent port, 4 is a plurality of conduits vertically provided in the container 1, and 5 is a lower part in the container 1. It is a baffle provided in. Openings (not shown) are formed in the peripheral wall of the conduit 4 at a plurality of different heights. The baffle plate 5 has an upwardly convex conical shape, and a gap 6 is provided between the peripheral edge of the baffle plate 5 and the peripheral wall of the container 1. The conduit 4 communicates with the space below the baffle plate 5. Such a granular material mixing apparatus has an inlet 2 inside a container 1.
The granular material is filled from a, and the granular material is made to flow into the conduit 4 through the opening by opening the outlet 2c.
Mixing is performed by dropping the liquid through the inside into the space below the baffle plate 5 and also through the gap 6 through the outlet 2b. FIG. 11 is a schematic sectional view showing the action of the baffle plate 5. As shown in FIG. 11, the baffle plate 5 acts to drop the particulate matter in the container 1 by mass flow.

By the way, the granular material mixing apparatus 10 having the above structure
Then, it was necessary to provide a moderately large baffle plate 5, resulting in high production cost. Therefore, in order to reduce the production cost and to improve the volumetric efficiency in the container 1,
As shown in FIG. 12, it has been proposed that the baffle plate 5 be provided further below in the container 1 to reduce the size of the baffle plate 5.

However, when the baffle plate 5 is made small,
As shown in FIG. 12, the flow of the particulate matter immediately above the baffle plate 5 becomes large and the funnel flow occurs, and at the gap 6 between the peripheral edge of the baffle plate 5 and the peripheral wall of the container 1, the particulate matter is discharged. There is a problem that the flow becomes difficult, that is, a dead space X is formed, and the dead space X hinders the uniform discharge and mixing of the particulate matter.

[0005]

It is an object of the present invention to reduce the size of the baffle plate, reduce the production cost and improve the volumetric efficiency.
An object of the present invention is to provide a particulate matter storage / discharge device capable of uniformly discharging and mixing the particulate matter.

[0006]

According to a first aspect of the present invention, an upright tubular container having an inlet at an upper portion and an outlet at a lower portion is provided with a baffle plate for dropping particulate matter in the container by mass flow. In the device for storing and discharging particulate matter, a baffle plate is provided in the lower part of the container so as to incline downward from the center of the container toward the peripheral wall of the container and to have a gap between the peripheral wall and the baffle plate. A partition wall is provided between the plate and the peripheral wall of the container, which divides the above-mentioned gap and extends vertically and is opposed to the peripheral wall continuously in the circumferential direction.

The second invention of the present application is to store a granular material provided with a baffle plate for dropping the granular material in the container by mass flow in an upright cylindrical container having an inlet at an upper portion and an outlet at a lower portion. In the discharging device, a baffle plate is provided in the lower portion of the container so as to incline downward from the center of the container toward the peripheral wall of the container and to have a gap between the peripheral wall and the baffle plate. It is characterized in that wall bodies that together with the peripheral wall form a cylindrical space that extends vertically through the gap are provided at a plurality of positions between.

According to a third invention of the present application, in the first or second invention, a plurality of vertically extending conduits are provided in the container, and a plurality of conduits having different peripheral wall heights are provided. An opening is formed at the location, and the particulate matter flows into the conduit through the opening, drops through the conduit to the lower side of the baffle plate, and drops through the gap to mix. It is something like this.

[0009]

In the first aspect of the invention, the partition wall secures a space extending vertically through the gap between the partition wall and the peripheral wall of the container, and the granular particles flowing downward in the container. Among the objects, the granular material that has flowed into the space surely flows into the space below the baffle plate through the space.

In the second aspect of the present invention, the wall body secures a cylindrical space that extends vertically through the gap between the baffle plate and the peripheral wall of the container, and flows downward in the container. Among the granular materials, the granular material that has flowed into the cylindrical space surely flows into the space below the baffle plate through the cylindrical space.

In the third invention, the particulate matter flows into the conduit through the opening, falls through the conduit to the lower side of the baffle plate, and the space in the first invention or the cylinder in the second invention. It surely flows into the space below the baffle through the space.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) This embodiment relates to a particulate matter mixing apparatus which is an example of the particulate matter storage / discharge apparatus of the present invention.
1 is a vertical cross-sectional partial view of the granular material mixing apparatus 10a, and FIG. 2 is a II-II cross-sectional view of FIG. In both figures, the same reference numerals as those in FIG. 9 indicate the same or corresponding ones. Device 10 of this embodiment
In a, the baffle plate 5 is smaller than the device 10 shown in FIG. 9, and is provided in the container 1 at a further lower portion.

A partition wall 8 is provided in the device 10a of this embodiment. As shown in FIG. 3, the partition wall 8 has a shape in which the lower apex of the inverted cone that opens upward is cut off. The partition wall 8 is arranged between the baffle plate 5 and the peripheral wall of the container 1 so as to divide the gap 6 to extend vertically and to face the peripheral wall.

The six conduits 4 extend vertically in contact with the peripheral edge of the baffle plate 5, and the lower part thereof penetrates the partition wall 8 and the peripheral wall of the container 1 to the outside to communicate with the outlet 2c. There is.
The baffle plate 5 and the partition wall 8 are welded and fixed to the conduit 4 and supported in the container 1.

In the apparatus 10a having the above structure, the partition wall 8 is provided, so that the space 21 is secured between the partition wall 8 and the peripheral wall of the container 1. This space 21 has a gap 6
It extends through and up and down. Therefore, among the granular materials that have flowed downward in the container 1, the granular materials that have flowed into the space 21 surely flow into the space below the baffle plate 5 through the space 21 as indicated by arrow A. That is, the granular material flowing down around the baffle plate 5 will surely flow into the space below the baffle plate 5 through the space 21 without being difficult to flow in the gap 6. Therefore, in the device 10a,
The granular material smoothly flows down by mass flow, and no dead space occurs. The particulate matter that has flowed into the space below the baffle plate 5 through the space 21 must be mixed with the particulate matter that has flowed into the conduit 4 from the opening on the one hand and that has flowed through the conduit 4 into the space below the baffle plate 5. Becomes

As described above, in the apparatus 10a, since the partition wall 8 is provided, although the baffle plate 5 is made smaller than the conventional one, the particulate matter is generated without causing a dead space. It can be smoothly flowed down by mass flow, and therefore, the particulate matter can be mixed well.

(Embodiment 2) This embodiment relates to a so-called silo which is an example of the particulate matter storage / discharge apparatus of the present invention. FIG. 4 is a partial vertical sectional view showing the silo 10b, and FIG.
FIG. 5 is a sectional view taken along line VV of FIG. 4. In both figures, 1 is an upright cylindrical container, and 2 b is an outlet of the container 1. Although not shown, the container 1 has an inlet and an air vent port at the top thereof. In the device 10b of this embodiment, the baffle plate 5
Is smaller than the device 10 shown in FIG. 9, and is provided further below the container 1.

In the silo 10b of this embodiment, the wall bodies 9 which form the cylindrical space 22 together with the peripheral wall of the container 1 are provided at six positions at equal intervals in the circumferential direction. The wall 9
As shown in FIG. 6, the curved plate has a semicircular cross section. Wall 9
Is fixedly provided on the peripheral wall of the container 1 between the baffle plate 5 and the peripheral wall of the container 1, and the tubular space 22 extends vertically through the gap 6.

In the silo 10b having the above structure, since the wall 9 is provided to form the cylindrical space 22, the cylindrical space 22 is secured between the baffle plate 5 and the peripheral wall of the container 1.
Since the space 22 extends vertically through the gap 6, the space 2 in the granular material flowing downward in the container 1
The granular material that has flowed into 2 reliably flows into the space below the baffle plate 5 through the space 22 as shown by arrow B. That is, the granular material flowing down around the baffle plate 5 will surely flow into the space below the baffle plate 5 through the space 22 without being difficult to flow in the gap 6. Therefore, in the silo 10b, the particulate matter smoothly falls by mass flow and is discharged from the outlet 2b.

As described above, since the silo 10b is provided with the wall body 9, the baffle plate 5 can be smoothly dropped by mass flow although the baffle plate 5 is downsized as compared with the conventional one. it can.

(Other Embodiment) (1) In the second embodiment, instead of the wall body 9, a wall body 9a as shown in FIG. 7 may be used. The wall 9a is the container 1
It is a curved plate having a shape in which a cylindrical space formed by the peripheral wall of the above is opened wide upward. When this wall 9a is used, most of the particles flowing down around the baffle plate 5 will flow into the cylindrical space, so that the particles can be dropped more smoothly by mass flow.

(2) In the second embodiment, instead of the wall body 9, a wall body 9b as shown in FIG. 8 may be used. Wall 9
In b, notches 91b are formed on both sides of the lower end of the wall body 9. In FIG. 4, if the wall 9 is too long,
Although the flow of the particulate matter in the space below the baffle plate 5 may be cramped, such a fear can be eliminated by using the wall 9b. That is, the flow of the particulate matter in the space below the baffle plate 5 can be smoothed.

(3) The construction provided with the partition wall 8 in the first embodiment may be applied to a silo.

(4) The structure provided with the wall 9 in the second embodiment may be applied to the granular material mixing apparatus. Of course, the same applies when the wall 9a or 9b is used.

[0025]

INDUSTRIAL APPLICABILITY As described above, the storage of the granular material of the present invention
The discharging device has the following effects. (1) According to the particulate matter storage / discharge device of claim 1, the partition wall 8 can secure the space 21 extending vertically through the gap 6 between the partition wall 8 and the peripheral wall of the container 1. The particulate matter flowing down around the baffle plate 5 can be surely caused to flow into the space below the baffle plate 5 through the space 21.
Therefore, the granular material can be smoothly dropped by mass flow.

(2) According to the particulate matter storing / discharging device of the second aspect, the wall 9 (or 9a, 9b) can secure the cylindrical space 22 extending vertically through the gap 6. The granular material flowing down around the baffle plate 5 can be surely caused to flow into the space below the baffle plate 5 through the space 22. Therefore, the granular material can be smoothly dropped by mass flow.

(3) According to the particulate matter storing / discharging apparatus of the third aspect, in the particulate matter mixing apparatus which is an example of the apparatus, the particulate matter is smoothly flowed down by mass flow without causing a dead space. As a result, the particulate matter can be mixed well.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view showing an apparatus according to a first embodiment.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing a partition wall used in the first embodiment.

FIG. 4 is a partial vertical cross-sectional view showing the silo of the second embodiment.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a perspective view showing a wall body used in a second embodiment.

FIG. 7 is a perspective view showing a wall body used in another embodiment.

FIG. 8 is a perspective view showing a wall body used in still another embodiment.

FIG. 9 is a partial vertical cross-sectional view showing a conventional particulate matter mixing device which is an example of a particulate matter storage / discharge device.

10 is a sectional view taken along line XX of FIG.

FIG. 11 is a schematic cross-sectional view showing the action of a baffle plate.

FIG. 12 is a schematic cross-sectional view showing an operation when the baffle plate is downsized.

[Explanation of symbols]

 1 container 2a inlet 2b, 2c outlet 4 conduit 5 baffle plate 6 gap 8 partition wall 9, 9a, 9b wall 22 tubular space

Claims (3)

[Claims] 1. A particulate matter storing / discharging device comprising an upright tubular container having an inlet at an upper portion and an outlet at a lower portion, and a baffle plate for dropping the granular substance in the container by mass flow, wherein: Is provided in the lower part of the container so as to incline downward from the center of the container toward the peripheral wall of the container and to have a gap between the peripheral wall and the baffle plate. A particulate matter storing / discharging device, characterized in that a partition wall, which is divided into two parts, extends vertically and is opposed to the peripheral wall, is continuously provided in the circumferential direction. 2. A particulate matter storing / discharging device comprising an upright tubular container having an inlet at an upper portion and an outlet at a lower portion, and a baffle plate for dropping a granular substance in the container by mass flow, wherein: Is provided in the lower portion of the container so as to incline downward from the center of the container toward the peripheral wall of the container and to have a gap between the peripheral wall and the peripheral wall of the container. A particulate matter storing / discharging device, characterized in that a wall body is provided which constitutes a cylindrical space extending vertically through the gap together with a peripheral wall. 3. A plurality of vertically extending conduits are provided in the container, and openings are formed at a plurality of locations where the peripheral wall of each conduit has a different height. The particulate matter according to claim 1 or 2, wherein the particulate matter is mixed by flowing into the pipe from the inside of the pipe, dropping through the pipe to the lower side of the baffle plate, and dropping through the gap. -Ejection device.