JP6011469B2 - Powder and material charging apparatus and charging method - Google Patents

Description

  The present invention relates to a granular material charging apparatus and a charging method for distributing and charging powdery or lump powdery particles such as coal, iron ore, and limestone to a granular material receiving mechanism such as a pulverizer.

  As this main granular material throwing device, for example, in the belt conveyor chute for guiding the conveyed product falling toward the conveying belt in order to load the conveyed item on the conveying belt of the belt conveyor, the conveying inside the chute An obstruction member extending in a direction substantially coinciding with the longitudinal direction of the conveyor belt is disposed at the center in the lateral direction of the conveyor belt, and a part of the conveyed product collides with the obstruction member during the fall. A belt conveyor chute has been proposed (see, for example, Patent Document 1).

JP 2004-175479 A

By the way, in the conventional example described in Patent Document 1, a rod-shaped obstacle member is arranged in the narrow cylindrical portion formed in the lower portion of the belt conveyor chute along the conveying direction of the belt conveyor for delivering the object to be conveyed. I have to. For this reason, the transported material that falls on the belt conveyor that delivers the transported material is dispersed in the short direction, that is, the width direction of the belt conveyor by the rod-shaped obstacle member, but is uniform in the extending direction of the rod-shaped obstacle member. There is an unresolved problem that it is not possible to drop the conveyed product by dispersing it in the area.
Therefore, the present invention has been made paying attention to the unsolved problems of the above-described conventional example, and efficiently disperses the granular material when the granular material containing a lump is put into the granular material receiving mechanism. It is an object of the present invention to provide a granular material charging apparatus and a granular material charging method that can be used.

In order to achieve the above object, one aspect of the granular material charging device according to the present invention includes a granular material conveyance mechanism that continuously conveys the granular material and drops it from the conveyance end, and a drop from the granular material conveyance mechanism. A granular material receiving mechanism to which the granular material to be supplied is supplied; and a granular material charging chute for supplying the granular material falling from the granular material transporting mechanism to the granular material receiving mechanism. The charging chute has a granular material dispersion part having a corner apex part that disperses the falling granular material arranged in three directions in the middle part, and the granular material dispersion part falls from the granular material transport mechanism A horizontally long triangular prism arranged at the center of the granular material in the width direction along the conveying direction of the granular material conveying mechanism, with one apex facing the granular material falling from the granular material conveying mechanism or It is composed of a triangular cylinder, and the triangular prism or triangular cylinder is formed at the end portion on the conveyance end side of the granular material conveyance mechanism. The top of the bottom of the granular material has an inclined surface that is inclined to the other end and faces the conveying end side end of the granular material conveying mechanism, and the top of the inclined surface of the granular material falls. It is located at the center in the front-rear direction perpendicular to the width direction .

In addition, one aspect of the method for charging a granular material according to the present invention is a method for charging a granular material, in which the granular material falling from the granular material transport mechanism is dispersed and input to the granular material receiving mechanism. the granular material falling from the powder transfer mechanism, is dispersed in three directions is brought into contact with the granular material distributed unit having Sumiitadaki portion was charged to the powder or granular material receiving mechanism, the powder particle dispersion unit, At the center in the width direction of the granular material falling from the granular material conveying mechanism , along the conveying direction of the granular material conveying mechanism , one top is directed to the granular material falling from the granular material conveying mechanism consists of a triangular prism or triangular barrel arranged Horizontal Te, the triangular prism or triangular barrel the powder was inclined top to the bottom face end to the other end in the conveying end side end portion of the powder or granular material transport mechanism The width of the granular material that forms an inclined surface facing the conveying end side end of the granular material conveying mechanism and falls on the top of the inclined surface That have be positioned in the central portion in the longitudinal direction perpendicular to the direction.

  According to the present invention, since the granular material falling from the granular material transport mechanism for continuously conveying the granular material such as a belt conveyor is dispersed in at least three directions by the granular material dispersion portion, the dispersion rate of the granular material is In an elevated state, the granular material can be put into the granular material receiving mechanism. Therefore, it is possible to prevent uneven wear due to the powder particles falling on the powder particle receiving mechanism side. Moreover, since it can grind | pulverize in the state which raised the dispersion rate of a granular material, it became possible to adjust the finishing particle size distribution of a granular material.

It is front sectional drawing which shows the grinding | pulverization system to which this invention is applied. It is sectional drawing of the side surface side of FIG. It is sectional drawing on the AA line of FIG. It is front sectional drawing which shows the grinding | pulverization system when not providing the granular material dispersion | distribution part which concerns on this invention. It is sectional drawing of the side surface side of FIG. It is a graph which shows the coarse grain residual rate of a grinding | pulverization result. It is a graph which shows the fine powder rate of a grinding | pulverization result. It is front sectional drawing which shows the 2nd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front side sectional view showing a first embodiment of a granular material supply apparatus according to the present invention, FIG. 2 is a side sectional side view, and FIG. 3 is a sectional view taken along line AA in FIG.
In the figure, reference numeral 1 denotes a pulverization system for pulverizing powdery or lump powder bodies 2 such as coal, iron ore, and limestone. As shown in FIGS. 1 and 2, the pulverization system 1 is provided with a granular material conveying belt conveyor 3 as a granular material conveying mechanism that continuously conveys the granular material 2. As shown in FIG. 1, the granular material transport belt conveyor 3 has a trough-type configuration including a conveyor belt 3 a and three conveyor rolls 3 b that guide and support the conveyor belt 3 a with a predetermined trough angle. Have.

At the end of conveyance of the granular material conveying belt conveyor 3, a charging chute 4 for supplying the granular material 2 dropped from the granular material conveying belt conveyor 3 to a pulverizer 5 as a granular material receiving mechanism described later is provided. Has been placed.
As shown in FIGS. 1 and 2, the charging chute 4 is formed from the granular material conveying belt conveyor 3 so that the shape in the width direction orthogonal to the conveying direction of the granular material conveying belt conveyor 3 is shown in FIG. 1. The granular material introduction body 4a set to be wider than the width of the granular material conveying belt conveyor 3 that receives the falling granular material, and the width of the granular material introducing body 4a connected to the granular material introducing portion 4a and extending downward. The expansion trunk | drum 4b which becomes. Here, as shown in FIG. 2, the side shape of the charging chute 4 is a vertical plate portion 4 c in which the front surfaces of the granular material introducing body portion 4 a and the expansion body portion 4 b are connected to each other, and the rear surface is directed toward the lower surface side. The inclined plate portion 4d is inclined to the front side.

And the granular material dispersion | distribution part 11 is arrange | positioned in the granular material introduction trunk | drum 4a. This granular material dispersion | distribution part 11 is supported by the fixed support part 12 bridged by the right-and-left side plate of the granular material introduction body part 4a, and is the width direction of the granular material which falls from the belt conveyor 3 for granular material conveyance. Dispersed in at least three directions are the powder particles arranged at the center position and falling.
As shown in FIGS. 1 to 3, the specific configuration of the powder particle dispersion unit 11 is a horizontally long material arranged along the conveying direction of the powder particle conveying belt conveyor 3 and has one apex as an upper end. The triangular cylinder 13 has an end, and the end of the triangular cylinder 13 on the side of the belt conveyor 3 for conveying the granular material is inclined toward the other end as it goes from the bottom to the upper end (inclined upward in FIG. 2). The surface 14 is used.

The triangular cylindrical body 13 is supported by the fixed support portion 12 so that the upper end of the inclined surface 14 is substantially at the center position in the front-rear direction of the granular material falling from the granular material transporting conveyor 3.
The fixed support portion 12 includes a pair of support rod portions 12a and 12b bridged on the left and right side plates of the granular material introducing body portion 4a at a predetermined interval in the front-rear direction, and the left and right directions of the support rod portions 12a and 12b. That is, the support plate 12c is fixedly arranged at the center in the width direction. And the triangular cylinder 13 which comprises the granular material dispersion | distribution part 11 is fixedly arrange | positioned at the support plate 12c.

Then, a rectangular input port 5a in which the longitudinal direction in which the lower end surface of the expansion body 4b of the input chute 4 is formed on the upper surface of the crusher 5 is perpendicular to the conveying direction of the granular material conveying belt conveyor 3 is formed. It is connected.
The crusher 5 has a charging port 5a formed in an upper portion thereof, and a rotation that is rotatably disposed extending in a direction perpendicular to the conveying direction of the granular material conveying belt conveyor 3 inside the charging port 5a. A barrel portion 5b and a number of hammers 5c projecting from the rotary barrel portion 5b are provided. Then, the rotating body 5b is rotated to pulverize particles such as coal, iron ore, and lime by the hammer 5c.

Next, the operation of the first embodiment will be described with reference to FIGS.
The granular material 2 including a lump such as coal, iron ore, and lime is conveyed to the charging chute 3 by the granular material conveying belt conveyor 3. At this time, in the granular material 2 placed on the conveyor belt 3a of the granular material conveying belt conveyor 3, the left and right conveyor rollers 3b are inclined upward and the outer side of the conveyor belt 3 is predetermined with respect to the inner side. Since it is inclined at a trough angle of 1, it is conveyed in a raised state at a substantially central portion of the conveyor belt 3a.
And the granular material 2 currently mounted in the conveyor belt 3a is dropped in the terminal part in the injection chute 4 of the belt conveyor 3 for granular material conveyance. At this time, since the inertia force by the conveyance speed of the conveyor belt 3a acts on the granular material 2, as shown in FIG. 2, it falls instead of falling vertically but drawing a parabola.

  The falling granular material 2 reaches the triangular cylindrical body 13 constituting the granular material dispersing portion 11 disposed at the center in the width direction on the lower end side of the granular material introducing body 4 a of the charging chute 4. The triangular cylindrical body 13 is formed with an inclined surface 14 inclined to the right as viewed in FIG. 2 at the end of the granular material conveying belt conveyor 3 side, and the granular material on which the upper end of the inclined surface 14 falls. 2 is located in the center of the front-rear direction, so that the granular material has three directions, a direction along the inclined surface 14 and a direction along the inclined surfaces 13a and 13b of the triangular cylinder 13, as shown in FIG. And fall through the expansion body 4b of the charging chute 4.

  Therefore, as shown in FIG. 1, the dispersed granular material 2 is dispersed over substantially the entire area of the expansion body 4 b by the inclined surfaces 13 a and 13 b of the triangular cylindrical body 13 in the width direction on the left and right. Then, it passes through the expansion body 4b and falls into the inlet 5a of the pulverizer 5. Further, as shown in FIG. 2, the dispersed granular material 2 is dispersed to the rear side by the inclined surface 14 of the triangular cylindrical body 13, and the support rod portions 12 a and 12 b of the fixed support portion 12. Also, by being dispersed in the front-rear direction, it is widely dispersed in the front-rear direction, and falls to the input port 5 a of the pulverizer 5 through the expansion body 4 b of the input chute 4.

  Therefore, a large number of hammers 5c arranged in the width direction for pulverizing the powder particles 2 of the pulverizer 5 are introduced into the charging port 5a of the pulverizer 5 in particular in the width direction. Will fall evenly. For this reason, the granular material 2 is pulverized equally by each hammer 5c, and the wear of each hammer 5c is made uniform. Further, since the powder particles 2 are uniformly crushed by each hammer 5c, it is possible to adjust the finished particle size distribution after the powder particles are pulverized.

  By the way, in the case where the particle dispersion unit 11 is not provided, as shown in FIGS. 4 and 5, the particles falling from the particle conveyor belt conveyor 3 are hardly dispersed in the width direction and the front-rear direction. The powder is charged into the charging port 5a of the pulverizer 5, and the granular material is pulverized only with the hammer 5c provided at the center in the width direction, and the powder is detected with the hammer 5c provided outside in the width direction. The body is hardly crushed. For this reason, the wear amount of the hammer 5c at the center in the width direction becomes larger than the wear amount of the hammer 5c at the outer side in the width direction, and the powder particles cannot be uniformly crushed.

And the result of having performed the granule grinding | pulverization experiment about both the case where the granular material dispersion | distribution part 11 by this embodiment is provided, and the case where the granular material dispersion | distribution part 11 shown in FIG.4 and FIG.5 is not provided is a figure. 6 and FIG.
That is, the relationship between the ratio (%) of the granular material having a particle size of 3 mm or less and the coarse particle residual ratio having a particle size of 6 mm or more is the case where the granular material dispersion part 11 is not provided as shown in FIG. As indicated by the characteristic line L2 shown by the solid line with respect to the characteristic line L1 shown by the broken line, the residual ratio of the coarse particles can be reduced by about 2 to 0.5%, and the pulverization of the good particle diameter with the uniform particle diameter can be achieved. It can be carried out.

On the other hand, the relationship between the proportion (%) of the powder particles having a particle size of 3 mm or less and the fine powder ratio having a particle size of 1.5 mm or less is as shown in FIG. As indicated by the characteristic line L22 shown by the solid line with respect to the characteristic line L11 shown by the broken line, the fine powder rate can be reduced by about 5%, and the desired particle size with less fine powder can be pulverized.
That is, the finished particle size distribution after pulverization of the powder particles can be adjusted.

Thus, in 1st Embodiment, the granular material which falls from the granular material dispersion | distribution belt 11 from the granular material conveyance belt conveyor 3 can be disperse | distributed to at least 3 directions, and can be thrown into the grinder 5. The pulverization of the powder particles in the pulverizer 5 can be performed uniformly over the entire region in the width direction, and the powder particles can be uniformly pulverized.
In addition, in the said 1st Embodiment, although the granular material dispersion | distribution part 11 demonstrated the case where it comprised by the triangular cylinder 13 which has the inclined surface 14, it is not limited to this, A triangular prism body is used. In addition to this, even if it is configured by a pyramid portion such as a triangular pyramid, a quadrangular pyramid, a polygonal pyramid, or a cone, the powder particles can be dispersed in multiple directions.

Next, a second embodiment of the present invention will be described with reference to FIG.
In the second embodiment, the position of the particle dispersion unit 11 is moved following the bias of the particles placed on the particle conveyor belt conveyor 3.
That is, in 2nd Embodiment, as shown in FIG. 8, the fixed support part 12 which is fixing the granular material dispersion | distribution part 11 is made with respect to the right-and-left side surface board parts 4e and 4f of the granular material introduction trunk | drum 4a. It is set as the movement support part 21 supported so that a movement in the width direction orthogonal to the conveyance direction of the granular material conveyance belt conveyor 3 was possible. The movement support unit 21 is moved and controlled in the width direction by the dispersion unit movement control unit 22 to adjust the position in the width direction of the particle body introduction body 4 a of the particle body dispersion unit 11.

The dispersion unit movement control unit 22 includes a linear motion mechanism 23 connected to the protruding end portions of the rod-like support portions 21a and 21b protruding from one side plate, for example, 4e, of the granular material introducing body portion 4a of the movement support portion 21. ing.
An example of the linear motion mechanism 23 includes a connecting plate portion 24 that connects the protruding end portions of the rod-like support portions 21 a and 21 b, a screw shaft 25 that is connected to the center portion of the connecting plate portion 24, and the screw shaft 25. The nut 26 is screwed and an electric motor 27a that rotationally drives the nut 26, and includes a rotation driving mechanism 27 that is disposed in the fixed portion.

Then, the electric motor of the rotation drive mechanism 27 is driven by the drive control unit 28.
The drive control unit 28 includes powder body bias detection information from a bias detection unit 30 that detects a short-side or width-direction bias of the powder body 2 loaded on the powder body transport belt conveyor 3. Is entered. The drive control unit 28 receives motor rotation position information output from a rotation position detection sensor 29 provided in the electric motor of the rotation drive mechanism 27.

And in the drive control part 28, the top part of the triangular cylinder 12 of the granular material dispersion | distribution part 11 is a granular material conveyance belt based on the granular material deviation detection information and motor rotation position information which are input from the deviation detection part 30. Position control is performed so that it becomes the center part of the width direction of the granular material 2 falling from the conveyor 3. FIG.
For example, the bias detection unit 30 uses an arithmetic processing unit 30b to image image information output from the imaging camera 30a disposed at an upper position a predetermined distance before the end of the belt conveyor 3 for conveying granular materials and the imaging camera 30a. The bias detection state of the powder particles placed on the powder particle conveyor belt conveyor 3 is detected and bias detection information indicating the bias center position of the powder particles 2 is output to the drive control unit 28.

  The deviation detection unit 30 is not limited to detecting deviation from the image information of the granular material 2, and measures the weight of the granular material 2 placed on the conveyor belt 3 a to determine the deviation of the granular material 2. Further, a laser distance meter that can scan in a direction perpendicular to the conveying direction is arranged above the granular material conveying belt conveyor 3, and the deviation of the granular material 2 is detected from the detected laser distance. It may be detected, and the point is that it is only necessary to detect the deviation in the short direction, that is, the width direction of the granular material placed on the granular material conveying belt conveyor 3.

  In the drive control unit 28, when the granular material deviation detection information is input from the deviation detection unit 30, the top of the triangular cylinder 13 constituting the granular material dispersion unit 11 is currently displayed based on the granular material deviation detection information. The rotational position command value to be moved from the position to the position coincident with the deviation center position of the granular material represented by the granular material deviation detection information is calculated, and the rotational position command value and the rotation input from the motor rotational position sensor 29 are calculated. For example, PID control processing is performed on the deviation from the position information to calculate a motor drive current, and feedback control is performed to output the calculated motor drive current to the electric motor.

According to the second embodiment, the deviation detection unit 30 of the granular material containing a lump such as coal, iron ore, and lime placed on the conveyor bell of the belt conveyor 3 for conveying the granular material and 3a. The deviation in the width direction is detected, and powder body deviation detection information indicating the center position of the deviation is output to the drive control unit 28.
For this reason, the drive control unit 28 uses the pitch of the screw shaft 25 based on the deviation between the current position information stored in the storage unit (not shown) and the deviation center position of the granular material represented by the granular material deviation information. The rotational position command value is calculated, and for example, PID control calculation is performed so that the deviation between the calculated rotational position command value and the motor rotational position input from the motor rotational position sensor 29 becomes zero, and the motor current for forward rotation or reverse rotation Is output to the electric motor 28a.

For this reason, the electric motor 27a of the rotation drive mechanism 27 is driven forward or reversely, and the nut 26 is driven forward or backward, whereby the screw shaft 25 is moved forward or backward. For this reason, the position is adjusted so that the top of the triangular cylindrical body 13 constituting the granular material dispersion portion 11 moves forward or backward to coincide with the center position in the width direction of the granular material falling. The
Therefore, when the center position in the width direction of the powder body 2 placed on the belt conveyor 3 for transporting the powder body is shifted from the center position in the width direction of the conveyor belt 3a, the powder body becomes uneven. Since the position of the triangular cylindrical body 13 is automatically adjusted so that the top of the triangular cylindrical body 13 is positioned at the center position in the width direction of the granular material 2 where the granular material dispersing portion 11 falls according to the bias of 2, the falling of the granular material Even when the state is biased, the particles 2 can be accurately dispersed.

In the second embodiment, the case where the linear motion mechanism 23 is configured by the screw shaft 25 and the nut 26 has been described. However, the present invention is not limited to this, and a ball screw mechanism can be applied. Any linear motion mechanism can be applied.
Moreover, in the said 2nd Embodiment, although the case where the width direction position of the granular material dispersion | distribution part 11 was always adjusted according to the bias | inclination of the granular material 2 on the belt conveyor 3 for granular material conveyance was demonstrated, However, the present invention is not limited to this, and when the bias of the granular material 2 on the granular material conveying belt conveyor 3 changes by more than a predetermined allowable value from the center position in the width direction, Position adjustment may be performed.

Furthermore, also in the said 2nd Embodiment, arbitrary shapes can be applied for the shape of the granular material dispersion | distribution part 11 if the granular material 2 can be disperse | distributed to three or more directions.
Moreover, in the said 1st and 2nd embodiment, although the case where the granular material conveyance belt conveyor 3 was applied as a granular material conveyance mechanism was demonstrated, it is not limited to this, An inclination gutter is applied The arbitrary granular material conveyance mechanism can also be applied.
In the first and second embodiments, the case where the pulverizer 5 is a hammer type has been described. However, the present invention is not limited to this, and any type of pulverizer such as a rod mill, a ball mill, or the like is applied. can do.

Further, the granular material receiving mechanism is not limited to the pulverizer 5, and the present invention is applied to the granular material receiving mechanism for uniformly dispersing and receiving the granular material such as a classifier for classifying the granular material. can do.
In addition, in the said 1st and 2nd embodiment, although the gap of a granular material fall direction is demonstrated by adjusting the width direction position of the granular material dispersion | distribution part 11, it changes with the change of conveyance amount. The position of the powder particle dispersion unit 11 may be adjusted in the longitudinal direction following the powder particle injection angle.

  DESCRIPTION OF SYMBOLS 1 ... Grinding system, 2 ... Granules, 3 ... Belt conveyor for conveying granular materials, 4 ... Feeding chute, 4a ... Granule introduction drum, 4b ... Expansion barrel, 5 ... Crusher, 11 ... Powder Body dispersion part, 12 ... Fixed support part, 13 ... Triangular cylinder, 14 ... Inclined surface, 21 ... Movement support part, 22 ... Dispersion part movement control part, 23 ... Linear motion mechanism, 24 ... Connection plate part, 25 ... Screw Axis, 26 ... nut, 27 ... rotation drive mechanism, 27a ... electric motor, 28 ... drive control unit, 29 ... rotation position detection sensor, 30 ... bias detection unit

Claims (11)

A granular material transport mechanism for continuously conveying the granular material and dropping it from the transport end;
A granular material receiving mechanism to which the granular material falling from the granular material conveying mechanism is supplied;
A granular material charging chute for charging the granular material falling from the granular material transport mechanism into the granular material receiving mechanism,
The granular material charging chute has a granular material dispersion portion having a corner apex portion that disperses the falling granular material arranged in an intermediate portion in three directions,
The granular material dispersing unit is arranged at the center in the width direction of the granular material falling from the granular material conveying mechanism, along the conveying direction of the granular material conveying mechanism, and one top portion of the granular material conveying mechanism. It is composed of a horizontally long triangular prism or triangular cylinder arranged toward the falling granular material, and the triangular prism or triangular cylinder is against the bottom end formed at the conveying end side end of the granular material conveying mechanism. The front part has an inclined surface that is inclined to the other end side and faces the conveying end side end part of the granular material conveying mechanism, and the longitudinal direction is perpendicular to the width direction of the granular material from which the top part of the inclined surface falls. It is located in the center part of the granular material injection device characterized by the above-mentioned.   The granular material charging device according to claim 1, wherein the granular material dispersing unit is supported so as to be movable horizontally rearward according to the falling tendency of the granular material.   A deviation detecting unit that detects a deviation in the width direction of the granular material falling from the granular material transport mechanism, and the powder particle dispersion unit when the deviation in the width direction of the granular material is detected by the deviation detection unit 3. The granular material charging apparatus according to claim 1, further comprising: a dispersion unit movement control unit that moves the particle to a biased position of the granular material.   The dispersion unit movement control unit includes a linear motion mechanism that moves the powder particle dispersion unit in the width direction of the powder particle transport mechanism, and the linear motion mechanism is driven and controlled according to the biased position of the powder material. The granular material charging device according to claim 3, wherein: A granular material transport mechanism for continuously conveying the granular material and dropping it from the transport end;
A granular material receiving mechanism to which the granular material falling from the granular material conveying mechanism is supplied;
A granular material charging chute for charging the granular material falling from the granular material conveying mechanism into the granular material receiving mechanism;
A granular material dispersion portion having a corner apex portion that disperses the falling granular material arranged in the middle portion of the granular material charging chute in at least three directions;
A bias detection unit that detects a bias in the width direction of the powder particles falling from the powder material transport mechanism;
A dispersion unit movement control unit that moves the powder particle dispersion unit to the bias position of the powder material when the deviation detection unit detects the powder particle width deviation. Powder input device.   The dispersion unit movement control unit includes a linear motion mechanism that moves the powder particle dispersion unit in the width direction of the powder particle transport mechanism, and the linear motion mechanism is driven and controlled according to the biased position of the powder material. The granular material charging device according to claim 5, wherein:   The granular material dispersing unit is arranged at the center in the width direction of the granular material falling from the granular material conveying mechanism, along the conveying direction of the granular material conveying mechanism, and one top portion of the granular material conveying mechanism. It is composed of a horizontally long triangular prism or triangular cylinder arranged toward the falling granular material, and the triangular prism or triangular cylinder has a top portion other than the bottom end on the conveying end side end of the granular material conveying mechanism. A center part in the front-rear direction perpendicular to the width direction of the granular material in which an inclined surface is formed which is inclined to the end side and is opposed to the conveying end side end of the granular material conveying mechanism, and the top of the inclined surface falls. It is located in, The granular material injection | throwing-in apparatus of Claim 5 or 6 characterized by the above-mentioned.   The said granular material dispersion | distribution part is comprised by the cone-shaped part which consists of any one of a pyramid, a polygonal pyramid, and a cone, The granular material injection | throwing-in apparatus of Claim 5 or 6 characterized by the above-mentioned. Dispersing the powder particles falling from the powder material transport mechanism and charging the powder material receiving mechanism,
The granular material falling from the granular material transport mechanism is brought into contact with the granular material dispersion portion having a corner apex portion and dispersed in three directions, and is charged into the granular material receiving mechanism.
The granular material dispersing unit is arranged at the center in the width direction of the granular material falling from the granular material conveying mechanism, along the conveying direction of the granular material conveying mechanism, and one top portion of the granular material conveying mechanism. It is composed of a horizontally long triangular prism or triangular cylinder arranged toward the falling granular material, and the triangular prism or triangular cylinder has a top portion other than the bottom end on the conveying end side end of the granular material conveying mechanism. A center part in the front-rear direction perpendicular to the width direction of the granular material that forms an inclined surface that inclines toward the end and faces the conveying end side end of the granular material conveying mechanism, and falls on the top of the inclined surface. A method for charging a granular material, characterized in that it is located in a position.   The method for charging a granular material according to claim 9, wherein the movement of the granular material dispersion portion is controlled according to a bias position of the granular material falling from the granular material transport mechanism. Dispersing the powder particles falling from the powder material transport mechanism and charging the powder material receiving mechanism,
The granular material falling from the granular material transport mechanism is brought into contact with the granular material dispersion portion having a corner apex portion and dispersed in at least three directions, and is introduced into the granular material receiving mechanism.
The deviation detecting unit detects the deviation in the width direction of the granular material falling from the granular material receiving mechanism,
Depending on the deviation detected position of the granular material, granular material charged method characterized by moving control the powder particle dispersion unit.

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