JP3556466B2 - Granule cutting device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for cutting out powder and granules, and more particularly to an apparatus for cutting out powder and granules which can simultaneously cut out and distribute powder.
[0002]
[Prior art]
For example, in a blast furnace, pulverized coal is introduced from a tuyere for the purpose of effectively using pulverized coal. In this case, it is important that the amount of pulverized coal charged into the furnace from each tuyere be maintained uniform at each tuyere. In such a case, the cut pulverized coal is uniformly distributed to multiple systems. Need to be distributed to
[0003]
Conventionally, in order to cut out powder and granular materials such as coal and ore and distribute them to a plurality of systems, a combination of a powder and particle extracting device and a distribution device has been used. Hereinafter, a conventional granular material cutting device will be described with reference to the drawings.
[0004]
FIG. 3 is a schematic sectional view showing a conventional granular material cutting-out apparatus, and FIG. 4 is a sectional view taken along line AA of FIG.
3 and 4, 1 is a cylindrical powder-particle storage hopper, 2 is a weighing rotor provided in the hopper 1, 3 is a scouring cover fixed to the inner surface of the side plate 1 </ b> A of the hopper 1, Reference numeral 4 denotes a discharge port provided at the edge of the bottom plate 1B of the hopper 1 facing the sliding cover 3.
[0005]
The weighing rotor 2 is fixed to a vertical drive shaft 5 in the hopper 1 and is continuously and horizontally rotated in one direction. A disk 6 is fixed radially to the outer peripheral surface of the disk 6 at intervals in the circumferential direction. And a plurality of scrapers 7. The weighing rotor 2 is provided between the sliding cover 3 and the bottom plate 1B of the hopper 1.
[0006]
As shown in the cross-sectional view showing the discharge port portion in FIG. 5, the length of the trivial cover 3 is longer than the length of the discharge port 4 provided in the bottom plate 1B of the hopper 1. That is, it is longer by the distance (L) between the scraper 7 and each end of the cover 3. This is because if the length of the wear cover 3 is short, when the metering rotor 2 rotates, the powder in the hopper 1 flows down from between the scrapers 7A and 7B to the discharge port 4 so that uniform cutting cannot be performed. is there.
[0007]
According to the conventional granular material cutting device, the granular material is quantitatively cut out as follows.
The granular material in the hopper 1 enters between the scrapers 7 of the measuring rotor 2 that rotates continuously in one direction in the hopper 1. The granular material between the scrapers 7 is discharged from the discharge port 4 when the scraper 7 rotates to the position of the discharge port 4. At this time, since the upper part of the powder and the granular material that has entered between the scrapers 7 is leveled by the scouring cover 3, the powder and the granular material of a plurality of cells (one cell is the volume between the pair of scrapers 7) is accurately obtained. At the discharge port 4 to perform a quantitative cut-out of the powder.
[0008]
[Problems to be solved by the invention]
However, the above-mentioned conventional granular material cutting device has the following problems. That is, even if the powdery material can be quantitatively cut out, in order to distribute the cut out powdery material to a plurality of systems, as shown in the schematic sectional view of FIG. It was necessary to provide a distribution device 8 consisting of a branch of two pipes into a plurality of branch pipes, and equipment costs were accordingly high.
[0009]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an apparatus for cutting out granules that can simultaneously perform quantitative cutting and distribution of the granules.
[0010]
[Means for Solving the Problems]
The invention according to claim 1 is characterized in that the cylindrical powder storage hopper, a weighing rotor provided in the hopper, a slicing cover fixed to a side plate inner surface of the hopper, and the slicing cover opposed to the slicing cover. A discharge port provided at an edge of a bottom plate of the hopper, wherein the weighing rotor is provided with a circular plate that rotates horizontally in one direction continuously in the hopper, and a circumferentially spaced space on an outer peripheral surface of the disk. The measuring rotor comprises a plurality of scrapers fixed radially and the weighing rotor is provided between the grounding cover and the bottom plate of the hopper. Is characterized in that a plurality of hoppers are provided at intervals in the circumferential direction of the hopper.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the cutting device of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a schematic sectional view showing a granular material cutting device of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.
1 and 2, the same numbers as those in FIGS. 3 and 4 indicate the same items. That is, 1 is a cylindrical powder / granule storage hopper, 2 is a weighing rotor provided in the hopper 1, and 3 is a plurality of hoppers fixed to the inner surface of the side plate 1A of the hopper 1 at intervals in the circumferential direction. A plurality of (three in this example) cut-off covers, and a plurality of (three in this example, three at 120 ° intervals) outlets provided at the edge of the bottom plate 1B of the hopper 1 facing each of the cut-off covers 3 It is.
[0013]
The weighing rotor 2 is fixed to a vertical drive shaft 5 in the hopper 1 and is continuously and horizontally rotated in one direction. A disk 6 is fixed radially to the outer peripheral surface of the disk 6 at intervals in the circumferential direction. And a plurality of scrapers 7. The weighing rotors 2 are provided between the plurality of wear-out covers 3 and the bottom plate 1B of the hopper 1.
[0014]
The length of the triturating cover 3 is longer than the length of the discharge port 4 provided in the bottom plate 1B of the hopper 1 for the same reason as in the above-mentioned conventional powdery material cutting device. That is, it is longer by the distance (L) between the scraper 7 and each end of the cover 3.
[0015]
ADVANTAGE OF THE INVENTION According to the granular material cutout apparatus of this invention, quantitative cutout and distribution of a granular material are performed as follows.
The granular material in the hopper 1 enters between the scrapers 7 of the measuring rotor 2 that rotates continuously in one direction in the hopper 1. The granular material between the scrapers 7 is discharged from each discharge port 4 when the scraper 7 rotates to the position of each discharge port 4. At this time, since the upper part of the granular material that has entered between the scrapers 7 is leveled by the scouring cover 3, the granular material for a plurality of squares (one square is the volume between the pair of scrapers 7) is accurately obtained. At the same time, the powder can be simultaneously cut out and distributed to a plurality of systems (three in this example).
[0016]
When the number of distribution systems is further increased, for example, the distribution device shown in FIG. In this case, since a plurality of outlets 4 are formed, the number of distributors can be reduced accordingly.
[0017]
【The invention's effect】
As described above, according to the present invention, a plurality of granular material discharge ports and a plurality of cut-off covers are provided in the conventional granular material cutting device, so that quantitative particle cutting and distribution can be simultaneously performed. Therefore, since there is no need to separately provide a distribution device, a useful effect such as a reduction in equipment cost can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view showing a granular material cutting device of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1. FIG. 3 is a schematic cross-sectional view showing a conventional granular material cutting device.
FIG. 4 is a sectional view taken along line AA of FIG. 3;
FIG. 5 is a cross-sectional view showing a granular material discharge port portion.
FIG. 6 is a schematic sectional view showing an apparatus for distributing powder and granules.
[Explanation of symbols]
1: Hopper 1A: Side plate 1B: Bottom plate 2: Metering rotor 3: Surgical cover 4: Discharge port 5: Drive shaft 6: Disk 7: Scraper 8, Distributing device

Claims (1)

A cylindrical powder storage hopper, a weighing rotor provided in the hopper, a scouring cover fixed to the inner surface of the side plate of the hopper, and a bottom plate edge of the hopper opposed to the scouring cover; Provided in the hopper, the weighing rotor is a disk that is continuously horizontally rotated in one direction in the hopper, and a plurality of disks that are radially fixed on the outer peripheral surface of the disk at circumferential intervals. Comprising a number of scrapers, wherein the measuring rotor is a powder and granular material cutting device provided between the grounding cover and the bottom plate of the hopper,
A plurality of the discharge ports and the attrition cover are provided at intervals in a circumferential direction of the hopper, and a powdery and granular material cutting device is provided.

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