JP2007302373A - Powder and grain feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder and grain feeder, capable of feeding crushed matter including material that can be easily entangled, or lumps of material. <P>SOLUTION: In the powder and grain feeder, an inner cylinder 108 for feeding material is provided above a bottom plate 107 through a gap, lower ends of the inner cylinder and an outer cylinder 109 having a common center line with the inner cylinder are connected to the bottom plate, an upper end of the outer cylinder is connected to an upper part of the inner cylinder by a circular plate 116, a passage for material fed through the gap is formed between the inner cylinder and the outer cylinder, a plurality of spokes 104 are provided on a vertical rotating shaft 106 projected at a center of the bottom plate, a rotating ring 110 is provided along outer end of the spokes, and the inner circumference of the outer cylinder, and a plurality of material carrying scrapers are disposed in the passage for material along the bottom plate. Projections 103 for feeding material are provided on upper surfaces of the spoke close to the gap. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a powder and particle feeder.

An inner cylinder for material supply is provided on the bottom plate through a gap, the lower end of the outer cylinder sharing the center line with the inner cylinder is connected to the bottom plate, and the upper end of the outer cylinder and the upper part of the inner cylinder are connected by an annular plate. An inner cylinder, an outer cylinder, and a bottom plate that form a passage for the material supplied from the gap, a material discharge port is provided in the bottom plate portion of the material passage, and an upright rotating body protruding from the center portion of the bottom plate A plurality of spokes are provided, a rotating ring is installed at the outer end of the spoke along the inner periphery of the outer cylinder, and a plurality of scrapers for material transfer are arranged on the rotating ring along the bottom plate in the material passage. It is formed by the conventional powder feeder and the outer cylinder sharing the center line and the upper and lower inner cylinders, and the outer cylinder upper part and the upper inner cylinder are connected by the upper annular plate, the outer cylinder lower part and the lower inner cylinder lower part Are connected by a lower annular plate to form a material passage below the outer periphery of a circular table that closes the upper end of the lower inner cylinder, A material supply gap is provided between the outer periphery of the table and the lower end of the upper inner cylinder, a plurality of spokes are provided on an upright rotating shaft protruding from the center of the table, and the tip and the material passage are provided. The conventional powder feeder, which is connected to the arranged rotating ring and is provided with a scraper in the material passage on the rotating ring, has a spoke provided on the upright rotating shaft that is horizontal or slightly inclined with respect to the bottom plate. (See, for example, Patent Documents 1 and 2).
However, in the powder feeder with such a spoke having a planar structure, for example, a string-like material, a waste plastic material, or a pulverized product of waste polyvinyl chloride sheet is easily entangled with the outer cylinder through a gap from the inner cylinder portion. When the material is supplied to the material passage of the portion, there is a problem that stable supply cannot be performed due to frictional resistance or the like in the gap portion between the material and the lower end of the inner cylinder.
In addition, the granular material is greatly affected by the surrounding environment due to its physical properties, and it aggregates to form a lump that is larger than the material supply gap, such as when humidity is high, so that the material supply gap can be stably supplied. There was also a problem of disappearing.

Japanese Utility Model Publication No. 56-047833. JP 2003-335422 A

  The present invention has been made in order to solve the problems under the circumstances as described above, and is a pulverized product containing a tangled material such as a granular material containing a string-like material, waste plastic or waste polyvinyl chloride sheet. An object of the present invention is to provide a powder and particle feeder that can stably supply even a bulk material.

  The present inventor has intensively studied to achieve the above object. As a result, by providing the material supply protrusions on the plurality of spokes provided on the upright rotating body protruding from the center of the bottom plate or the table, even if the material is easily entangled or massive material is cut by the protrusions, It was crushed and found to be a granular material feeder capable of stable supply due to the unraveling effect, and the present invention was completed based on this finding.

That is, the present invention
(1) An inner cylinder for material supply is provided on the bottom plate through a gap, the lower end of the outer cylinder sharing the center line with the inner cylinder is connected to the bottom plate, and the upper end of the outer cylinder and the upper part of the inner cylinder are annular plates. Are connected to each other, a passage for the material supplied from the gap is formed between the inner cylinder and the outer cylinder, a material discharge port is provided in the bottom plate portion of the material passage, and an upright projecting at the center portion of the bottom plate A plurality of spokes are provided on the rotating body, a rotating ring is installed at the outer end of the spoke along the inner periphery of the outer cylinder, and a plurality of material transfer scrapers are arranged on the rotating ring along the bottom plate in the material passage. In the granular material supply machine, a protrusion is provided on the upper surface of the spoke in the vicinity of the gap,
(2) The granular material supply machine according to (1), wherein the material supply protrusion is a protrusion having a shape in which one side of the left and right sides is longer than the other side when viewed from the upright rotation axis at the center.
(3) The powder and particle feeder according to (1), wherein the tip of the material supply protrusion is formed in a three-surface edge shape,
(4) It is formed by an outer cylinder that shares the center line and upper and lower inner cylinders, and the upper and upper inner cylinders are connected by an upper annular plate, and the lower outer cylinder and the lower inner cylinder are connected by a lower annular plate. A material passage is formed below the outer periphery of the circular table that closes the upper end of the lower inner cylinder, a material supply gap is provided between the outer periphery of the table and the lower end of the upper inner cylinder, and protrudes into the center of the table. A granular material feeder comprising a plurality of spokes provided on an upright rotating shaft, a tip of which is connected to a rotating ring disposed in the material passage with a metal fitting, and a scraper in the material passage is provided on the rotating ring. In the above, a powder and particle feeder, characterized in that a material supply protrusion is provided on the upper surface of the spoke in the vicinity of the gap.
(5) The powder and particle feeder according to (4), wherein the material supply protrusion is a protrusion having a shape in which one side of the left and right sides is longer than the other side when viewed from the upright rotation axis at the center.
(6) The powder and particle feeder according to (4) or (5) above, wherein a plurality of material supply protrusions are provided on the upper surface of the spoke near the gap.
(7) The powder and particle feeder according to any one of (4) to (6), wherein the tip of the material supply protrusion is formed in a three-face edge shape,
It is.

  According to the present invention, a granular material containing a string-like material, a granular material that can be stably supplied even if it is a pulverized product or a massive material containing an easily entangled material such as waste plastic or waste polyvinyl chloride sheet A feeder can be provided.

The granular material supply machine of the present invention is (1) an inner cylinder for material supply is provided on the bottom plate via a gap, and the lower end of the outer cylinder sharing the center line with the inner cylinder is connected to the bottom plate, The upper end of the outer cylinder and the upper part of the inner cylinder are connected by an annular plate, a passage for the material supplied from the gap is formed by the inner cylinder, the outer cylinder and the bottom plate, and a material outlet is provided in the bottom plate portion of the material passage. In addition, a plurality of spokes are provided on an upright rotating body protruding from the center of the bottom plate, a rotating ring is installed along the inner periphery of the outer cylinder at the outer end of the spoke, and a scraper for material transfer is placed on the rotating ring on the bottom plate. A plurality of granular material feeders arranged in the material passage along the material passage, provided with a material supply protrusion on the upper surface of the spoke near the gap portion (hereinafter, referred to as the granular material feeder) (Sometimes referred to as a feeder 1), and (2) formed by an outer cylinder sharing the center line and upper and lower inner cylinders. The outer cylinder upper part and the upper inner cylinder are connected by an upper annular plate, and the outer cylinder lower part and the lower inner cylinder lower part are connected by a lower annular plate to close the upper end of the lower inner cylinder. Forming a passage, providing a material supply gap between the outer periphery of the table and the lower end of the upper inner cylinder, providing a plurality of spokes on an upright rotating shaft protruding from the center of the table, and its tip; In the powder and particle feeder provided by connecting the rotating ring disposed in the material passage with a metal fitting and providing the rotating ring with a scraper in the material passage, a material supply protrusion is provided on the upper surface of the spoke near the gap. A granular material feeder (hereinafter sometimes referred to as a feeder 2),
It is.

First, the feeder 1 will be described.
As shown in FIGS. 1 and 2, the feeder 1 of the present invention is provided with an inner cylinder 108 on a bottom plate 107 via a gap 113, and the lower end of an outer cylinder 109 sharing a center line with the inner cylinder Connected and fixed to the bottom plate 107, the inner cylinder, the outer cylinder and the bottom plate form a discharge material passage 115. The bottom plate portion of the passage is provided with a material discharge port 101, and is an upright rotating body protruding from the center portion of the bottom plate. A plurality of spokes 104 are provided on 106, a rotating ring 110 is installed along the inner periphery of the outer cylinder at the outer end of the spoke 104, and a material transfer scraper 105 is placed on the rotating ring 110 along the bottom plate 107. The feeder is provided with a plurality of protrusions 103 provided on the upper surface of the spoke near the gap. The granular material is supplied onto a feeder bottom plate 107 from a hopper (not shown) at the upper part of the inner cylinder, and is rotated by a plurality of spokes 104 connected to an upright rotating body 106 provided at the center of the bottom plate 107. It is transferred to the outer periphery and cut out through the gap 113 to the discharge material passage 115 in the outer periphery. The cut out granular material is sequentially transferred to the discharge port 101 and discharged by the material transfer scraper 105 attached to the outer ring 110. At this time, when a lump produced by agglomeration or the like exists in the material of the granular material, after being crushed by the material supply protrusion 103 provided on the spoke, the passage 115 of the discharged material from the gap 113 is performed. It is cut out. Further, a pulverized product including a string-like material, a waste plastic material, a waste polyvinyl chloride sheet or the like easily entangled material is cut by the material supply projection 103 provided on the spoke, or a loosening effect by the projection. Thus, it is possible to cut out smoothly from the gap 113 to the discharge material passage 115. The cut out granular material is sequentially guided to the discharge port 101 by the material transfer scraper 105 attached to the outer ring 110 and discharged.
The number of outlets is not limited to one, and a plurality of outlets may be provided. The direction of rotation of the spoke 104 and the material transfer scraper 105 may be clockwise or counterclockwise, but is preferably clockwise.
The flow rate of the granular material to be cut out is adjusted by moving up and down the flow rate adjustment ring 114 provided along the outer periphery of the inner cylinder and adjusting the width of the gap. There is no need to adjust.
The position of the material supply projection 103 provided on the spoke 104 may be provided on the inner surface of the inner cylinder as shown in FIG. 2, or may be provided on the outer surface of the inner cylinder as shown in FIG.
Further, the protrusion 103 is a protrusion in which one side of the left and right sides is longer than the other side when viewed from the upright rotation axis at the center as shown in FIG. By providing this blade-like projection, even if it is a granular material containing a string-like material, the string-like material is easily cut by the blade-like projection, and the material that is easily entangled is also loosened. The resistance in the gap is reduced, and the material can be cut out smoothly into the material passage.

Next, the feeder 2 will be described.
As shown in FIGS. 5 and 6, the feeder 2 of the present invention is formed by an outer cylinder 209 sharing the center line and upper and lower inner cylinders 207 and 208, and the upper and upper inner cylinders are connected to the upper annular plate. A material passage 216 is formed below the outer periphery of the circular table that connects at 218, connects the lower part of the outer cylinder and the lower part of the lower inner cylinder with the lower annular plate 219, and closes the upper end of the lower inner cylinder. A material supply gap 212 is interposed between the lower end of the inner cylinder, a plurality of spokes 206 are provided on an upright rotating shaft 210 projecting from the center of the table, and the tip and the rotation disposed in the material passage In the granular material feeder in which the ring 214 is connected by a metal fitting 215, and the scraper 217 in the material passage is provided in the rotating ring 214, the protrusion A203, the protrusion B204, and the protrusion C20 are formed on the upper surface of the spoke in the vicinity of the gap. Which is a powder or granular material feeder comprising provided.
The powder material is supplied onto the bottom plate 211 of the feeder from a hopper (not shown) at the top of the upper inner cylinder, and is rotated by rotation of a plurality of spokes 206 connected to an upright rotating body 210 provided at the center of the bottom plate 211. The material in the material passage is transferred to the outer periphery of the circumference, dropped into the discharge material passage 216 in the outer periphery of the circumference through the gap 212, and the dropped granular material is connected to the rotating ring 214 by the metal fitting 215. 217 sequentially leads to the discharge port 201 and is discharged. At this time, in the case where a lump or string-like material generated by agglomeration or the like exists in the material of the granular material, after being crushed or cut or loosened by the protrusion A203 provided on the spoke, the gap 212 It falls into the passage 216 of discharged material.
The feature of the feeder 2 is particularly suitable as a feeder including a lot of string-like materials, for example, a waste plastic material or a pulverized product of waste polyvinyl chloride sheet.
That is, after the string-like material is cut or cut to some extent by the material supply projection A203, it is further cut or loosened by the material supply projection B204 and the material supply projection C205 through the gap 212 and then on the bottom plate. Without falling, it falls into a separate material passage 216. That is, the structure is such that the discharge material transport portion is separated from the same bottom plate with respect to the feeder 1 provided with the discharge material transport portion on the same bottom plate. This shortens the residence time on the bottom plate in the upper inner cylinder as much as possible, prevents the string-like material from being entangled as much as possible, and quickly transfers the cut granular material to a separately provided material passage. This enables stable material supply.
The number of outlets 201 is not limited to one, and a plurality of outlets 201 may be provided. The direction of rotation of the spokes 206 and the material transfer scraper 217 may be clockwise or counterclockwise, but is preferably clockwise.
The flow rate of the supplied granular material is adjusted by moving up and down the flow rate adjusting ring 213 provided along the outer periphery of the inner cylinder and adjusting the width of the gap. It is the same as that of the feeder 1 that does not need to be adjusted.
As shown in FIG. 5 or 6, the position of the material supply projection A203 provided on the spoke 206 is provided on the inner surface of the upper inner cylinder, and the material supply projection B204 and the material supply projection C205 are provided on the outer surface of the upper inner cylinder. It is preferable to provide it. Further, the number of the projections to be installed is not particularly limited, but may be appropriately determined depending on the physical properties and properties of the material to be used.
Furthermore, the material supply projections 203 and 204 are projections having one side on the left and right sides that are longer than the other side as seen from the upright rotation axis at the center. It is preferable to provide the blade-like projections, so that the string-like material is cut or loosened by the blade-like projections even in the case of a granular material containing a string-like material. The resistance is reduced and the transfer to the material passage 216 can be performed smoothly. Further, as shown in FIG. 8, the material supply projection C205 is a projection having a shape in which one side of the left and right sides is longer than the other side when viewed from the upright rotation axis at the center, and may not be an edge shape. However, an edge shape is preferred.

It is side surface sectional drawing of the granular material supply machine 1. FIG. It is a top view of the granular material supply machine 1. FIG. It is the figure which showed the example which provided the protrusion for material supply in the outer surface of the inner cylinder in the granular material supply machine. The AA sectional view of the projection for material supply in granular material supply machine 1. FIG. It is side surface sectional drawing of the granular material supply machine 2. FIG. It is a top view of the granular material supply machine 2. FIG. It is a B (C) arrow view of the protrusion for material supply in the granular material supply machine. It is D arrow line drawing of the protrusion for material supply in the granular material supply machine 2. FIG.

Explanation of symbols

101: discharge port, 102: motor, 103: projection for material supply, 104: spoke, 105: scraper for material transfer, 106: upright rotating shaft, 107: bottom plate, 108: inner cylinder, 109: outer cylinder, 110: rotation Ring, 111: Spoke rotation direction, 112: Rotation direction of scraper for material transfer, 113: Gap, 114: Flow rate adjusting ring, 115: Material passage, 116: Annular plate 201: Discharge port, 202: Motor, 203: Material supply Protrusion A, 204: Material supply protrusion B, 205: Material supply protrusion C, 206: Spoke, 207: Upper inner cylinder, 208: Lower inner cylinder, 209: Outer cylinder, 210: Upright rotating shaft, 211: Bottom plate 212: Gap, 213: Flow rate adjusting ring, 214: Rotating ring, 215: Connection fitting, 216 Material passage, 217: Scraper for material transfer, 218 Upper annular plate, 219: lower annular plate

Claims (7)

  An inner cylinder for material supply is provided on the bottom plate through a gap, the lower end of the outer cylinder sharing the center line with the inner cylinder is connected to the bottom plate, and the upper end of the outer cylinder and the upper part of the inner cylinder are connected by an annular plate. An inner cylinder, an outer cylinder and a bottom plate that form a passage for the material supplied from the gap, a material discharge port provided in the bottom plate portion of the material passage, and an upright rotating body projecting from the center portion of the bottom plate A plurality of spokes are provided, a rotating ring is installed at the outer end of the spoke along the inner periphery of the outer cylinder, and a plurality of scrapers for material transfer are arranged on the rotating ring along the bottom plate in the material passage. In the granular material supply machine, a material supply protrusion is provided on the upper surface of the spoke in the vicinity of the gap.   The granular material supply machine according to claim 1, wherein the material supply protrusion is a protrusion having a shape in which one side of the left and right sides is longer than the other side when viewed from the upright rotating shaft at the center.   The granular material supply machine according to claim 1 or 2, wherein the tip of the material supply protrusion is formed in a three-surface edge shape.   It is formed by an outer cylinder that shares a center line and upper and lower inner cylinders. The upper part of the outer cylinder and the upper inner cylinder are connected by an upper annular plate, and the lower part of the outer cylinder and the lower part of the lower inner cylinder are connected by a lower annular plate. A material passage is formed below the outer periphery of the circular table that closes the upper end of the inner cylinder, and a material supply gap is provided between the outer periphery of the table and the lower end of the upper inner cylinder, and is projected upright at the center of the table. In the granular material supply machine in which a plurality of spokes are provided on the rotating shaft, the tip thereof and a rotating ring disposed in the material passage are connected by a metal fitting, and a scraper in the material passage is provided on the rotating ring. A powder and particle supply machine characterized in that a material supply protrusion is provided on the upper surface of the spoke in the vicinity of the gap.   The granular material supply machine according to any one of claims 1 to 4, wherein a plurality of material supply protrusions are provided on the upper surface of the spoke in the vicinity of the gap.   6. The powder and particle feeder according to claim 4, wherein the material supply protrusion is a protrusion having a shape in which one side of the left and right sides is longer than the other side when viewed from the upright rotation axis at the center.   The granular material supply machine according to any one of claims 4 to 6, wherein the tip of the material supply protrusion is formed in a three-surface edge shape.

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