JP2000344348A - Powder collector - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reliably discharge flake-shaped light-weight granules collected in a granule collector. SOLUTION: When light and granular material accumulates to a predetermined position above a granular material inlet 4, after stopping a gas suction device (not shown), an opening / closing lid 11 is opened, and thereafter, a granular material pressing tool. By pushing down 12 and pushing down the accumulated light-weight powder and granules downward, the light-weight powder and granules in the tapered cylinder 8 are discharged from the powder-particle outlet 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a particulate collector.

[0002]

2. Description of the Related Art Heretofore, the following types are known as this type of particulate collector. A cylindrical body having a top wall formed with a granular material inlet, having a tapered lower portion having a downward tapered portion having a granular material outlet at a lower portion, and further having a gas outlet on a side peripheral wall; The gas outlet is set so that the gas outlet is separated from the gas inlet and the powder outlet with a predetermined interval between them, and the passage of the powder of the set size is not allowed. Is known, which has a filter that allows the passage of air through the filter and an opening / closing lid provided at the outlet of the granular material of the cylindrical body.

[0003]

The operation of the prior art will be described below. A powder material storage source (having a gas inlet) in which the powder is stored is connected to the powder inlet, and a suction port of a gas suction device is connected to the gas outlet. After closing the outlet of the granular material with the lid, the following operation is performed by operating the gas suction device. Since the inside of the particulate collector becomes negative pressure, the particulates flow into the particulate collector together with the gas from the particulate inlet, the gas exits from the gas outlet, and the particulate It is stored in the particle collector. After the gas suction device is stopped, the on-off valve is opened to discharge the powder in the powder collector from the powder outlet.

[0004]

Disadvantages of the prior art The above-mentioned conventional particulate collector has the following disadvantages. Virgin raw materials such as heavy pellets (generally having a large apparent density) can be discharged by their own weight drop by opening the on-off valve after being collected by the above-mentioned conventional particulate collector. (In this specification, a light-weighted powdery material means that in a gas having a predetermined flow velocity going from bottom to top, it is sowed upward by the flow of the gas and does not fall under its own weight, or (In general, the apparent density is low.) In the case of light-weight particles supplied from the particle inlet to the particle collector, the light-weight particles are supplied to the gas outlet. Attached and accumulated on the surface of the filter along with the flowing gas. Then, after a predetermined amount of the light and granular material has accumulated in the powder and particle collector, even if the gas suction device is stopped and the on-off valve is opened to discharge the light and fine material, the light and granular material remains Due to the fact that it adheres and accumulates on the surface of the filter, and that the lower part of the cylindrical body is a tapered lower part that tapers downward and has a large wall resistance, light weight particles can be reliably discharged under its own weight. There was a disadvantage that there was no. In addition, since the reused raw material crushed to reuse the used synthetic resin product is often a light powder, it promotes the reuse of the used synthetic resin product from the viewpoint of global environmental protection. Therefore, the elimination of the above drawbacks is indispensable.

[0005]

The present invention employs the following means to solve the above-mentioned drawbacks. The invention according to claim 1 has a top wall at an upper portion, a lower portion serving as a granule outlet, and a granule inlet formed at a lower portion of the side peripheral wall,
A cylindrical main body having a gas outlet formed on the upper or top wall of the side peripheral wall, and a setting size provided in the cylindrical main body such that the gas outlet is defined as a powder inlet and a powder outlet. A tapered cylinder with a filter that does not allow the passage of powder particles but allows the passage of gas, a downwardly expanding tapered cylinder, an opening / closing lid provided at the powder / particle outlet of the cylindrical body, and a vertically movable inside the tapered cylinder In this case, the granular material is introduced into the tapered cylinder from the granular material inlet by the flow of the gas, and the gas is discharged from the gas outlet.

[0006]

According to the present invention, the following effects can be obtained by the above configuration. Put the lightweight powder into the powder collector through the lower powder inlet and discharge the gas through the upper gas outlet. To make the light and granular material accumulate from the upper part of the tapered cylinder to the lower part. The filter that separates the granules is a tapered cylinder that expands downward, and after the lid is opened, the synergistic effect of pushing down the lightweight granules with the granule pressing tool is retained in the tapered cylinder. It is possible to reliably discharge the obtained light-weight granules from the granules outlet.

[0007]

Embodiments of the present invention will be described below. The granular material collector 1 has a top wall 2 at an upper portion, a lower portion serving as a granular material outlet 3, a granular material inlet 4 formed at a lower portion of the side peripheral wall, and an upper portion ( Or, a cylindrical body 7 having a gas outlet 5 formed in the top wall 2), and the cylindrical body 7
The filter comprises a filter provided so as to define the gas outlet 5 as the powder-particle inlet 4 and the powder-particle outlet 3, and not allowing the passage of the powder having a predetermined size but permitting the passage of the gas. Downwardly expanding tapered cylinder 8, and granular material outlet 3 of cylindrical body 7
And an opening / closing lid 11 provided in the tapered cylinder 8 and an arbitrary-shaped powder / granular substance pressing tool 12 provided to be vertically movable within the tapered cylinder 8.

A main body of a fluid pressure cylinder 15 is mounted on the top wall 2 so that its axis is directed vertically. The rod 16 of the fluid pressure cylinder 15 faces the inside of the tapered cylinder 8 through the opening of the top wall 2, and the end of the rod 16 is attached with the powder pressing member 12.

At the lower part of the cylindrical body 7, an enclosure 19 having a diameter larger than the granular material outlet 3 is provided, and the enclosure 19 is provided with a required number of brackets 20.
A rotating shaft 21 is rotatably fitted to the rotating shaft 21, and the opening / closing lid 11 is fixed to the rotating shaft 21 via a connecting piece 22. One end of the rotating shaft 21 is exposed to the outside through the surrounding tube 19, and an arm (not shown) is fixed to the exposed end.
By swinging the arm by a known actuator (not shown), the opening / closing lid 11 can swing open and close about the rotation shaft 21.

[0010]

Next, the operation of the embodiment of the present invention will be described. A powder material storage source (having a gas inlet) in which light-weight particles are stored is connected to the powder material inlet 4, and a suction port of a gas suction device (not shown) is connected to the gas outlet 5; After such preparation, after closing the granular material outlet 3 with the opening / closing lid 11, if the gas suction device (not shown) is operated, the following operation is performed. Since the inside of the particulate material collector 1 has a negative pressure, a light-weight particulate material flows into the particulate material collector 1 together with the gas from the particulate material inlet 4, and the gas exits from the gas outlet 5. . Then, the light-weight powder particles are sowed to the upper portion of the tapered tube 8 by the gas flow from the bottom to the top, where they are in close contact with each other, and are sequentially accumulated downward from the upper portion of the tapered tube 8. Go. Then, when the light-weight powder particles accumulate to a predetermined position above the powder-particle inlet 4, the gas suction device (not shown) is stopped, and then the opening / closing lid 11 is opened.
Thereafter, the light and granular material in the tapered cylinder 8 is discharged from the granular material outlet 3 by pushing down the granular material pressing tool 12 and pushing the accumulated light and granular material downward.

[0011]

[Modifications and the like] Modifications and the like will be described below. (1) The powders and granules include powders, granules, minute flakes, short fiber pieces and the like. (2) The opening / closing lid 11 may be like a shutter that moves horizontally. (3) The filter may be any filter as long as it does not allow the passage of the granular material having the set size and allows the passage of the gas. That is, the filter includes a perforated plate and a net. (4) The horizontal cross section of the cylindrical main body 7 and the tapered cylinder 8 is generally circular, but is not limited thereto, and may be, for example, rectangular. (5) Any known device for operating the opening / closing lid 11 and the granular material pressing tool 12 can be used.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Granular material collector 2 Top wall 3 Granular material outlet 4 Granular material inlet 5 Gas outlet 7 Cylindrical main body 8 Tapered cylinder 11 Opening / closing lid 12 Granular material pressing tool

Claims (1)

[Claims] 1. An upper portion having a top wall, a lower portion serving as a powder outlet, a powder inlet being formed at a lower portion of a side peripheral wall, and a gas outlet being formed at an upper portion or a top wall of the side peripheral wall. A cylindrical body, and a gas outlet provided in the cylindrical body so as to define a gas outlet as a powder inlet and a powder outlet, and gas passing through a set size is not allowed. Has a downwardly expanding tapered cylinder made of a filter that allows passage, an opening / closing lid provided at the powder / particle outlet of the cylindrical main body, and a powder / granule pressing tool that is vertically movable within the tapered cylinder. And
A powder / particle collector in which powder is introduced into a tapered cylinder from a powder inlet by a gas flow, and gas is discharged from a gas outlet.