JP6266394B2 - Powder body charging device and cleaning method thereof - Google Patents

Description

  The present invention relates to a granular material charging device used for charging a granular material into a container, and a container equipped with the granular material charging device.

  When tablets, soft capsules, pellets, granules, and other similar products (hereinafter collectively referred to as powders) such as pharmaceuticals, foods, and agricultural chemicals are placed in a container of a predetermined capacity during or after production There is.

  When transferring such a granular material to a container, if the granular material is put into the container as it is, there is a possibility that the granular material is damaged by the impact of dropping. For this reason, there has already been proposed a granular material charging apparatus for guiding the granular material when the granular material is charged into the container.

  For example, Patent Literatures 1 to 4 include a shaft member arranged along the vertical direction and a spiral member provided on the outer periphery of the shaft member, and the powder member is guided by the spiral member. A granular material charging device for charging into a container is disclosed.

  Patent Document 1 also discloses a granular material charging apparatus that includes a spiral member provided on the inner wall of a cylindrical container, and that guides the granular material by the helical member and charges the container. ing.

Japanese Patent Laid-Open No. 52-140157 Japanese Patent Laid-Open No. 7-309411 JP-A-9-118411 JP 2012-25584 A Japanese Patent No. 2676679

  However, in these granular material charging devices, when the granular material is charged into the container, the granular material is clogged in the granular material charging device, and there is a case where the charging is interrupted in the middle. there were.

  This invention makes it a technical subject to suppress clogging of the granular material in a granular material injection device in view of the said situation.

In order to solve the above-mentioned problems, the granular material charging apparatus according to the present invention is arranged in a container, and the granular material passage formed in a spiral shape in the vertical direction is formed by the powder in the granular material passage. A bottom guide surface that guides the granular material from the bottom side, and a side guide surface that guides the granular material in the granular material passage from the outer peripheral side, and the granular material is passed through the granular material passage, In the granular material charging device to be charged into a container, the granular material is dropped so that the granular material falls from the inner peripheral side of the granular material passage so as to prevent clogging of the granular material in the granular material passage. An inner peripheral side of the passage is opened , provided above the container, a supply path for supplying the powder to the container via the powder passage, and provided below the container, the powder At least one of the discharge paths for discharging the granular material supplied through the granular passage from the container is a butterfly valve The butterfly valve is opened and closed by rotating a valve body having a shaft portion through the shaft portion, and the path passing through the butterfly valve is configured to avoid the shaft portion, The discharge path is configured to avoid the shaft portion via the butterfly valve, is inserted into the container through the discharge path, and cleaning liquid spraying means for spraying a cleaning liquid on the side of the particulate passage It is provided that the discharge path is configured such that the cleaning liquid ejecting means can move linearly between the outside of the container and the side of the powder passage .

  In this configuration, the inner peripheral side of the granular material passage is opened so that the granular material falls from the inner peripheral side of the granular material passage so as to prevent clogging of the granular material in the granular material passage. Accordingly, when the flow of the granular material stagnates and clogs in the granular material passage, the granular material falls from the inner peripheral side of the granular material passage. More specifically, when the powder is flowing smoothly, the granular material moves on the side guide surface side on the bottom guide surface by the centrifugal force acting when flowing through the spiral powder particle passage. However, when the flow rate is reduced in a part of the granular material passage due to a large amount of the granular material and the granular material is clogged, the centrifugal force acting on the granular material is weakened due to the decrease in the flow rate. Then, the granular material approaches the inner peripheral side of the granular material passage, the granular material falls from the inner peripheral side of the granular material passage, the clogging of the granular material is chained, and the upper part of the granular material passage The clogging of the granular material is eliminated before reaching. Thus, clogging of the granular material in the granular material passage is suppressed. That is, in the granular material charging device of the present invention, clogging of the granular material can be suppressed.

  Said structure WHEREIN: You may open | release the whole up-down direction whole area | region of the inner peripheral side of the said granular material channel | path.

  If it is this structure, when a granular material will be clogged in a granular material channel | path, a granular material can fall easily from the inner peripheral side of a granular material channel | path. Further, in this configuration, if the bottom guide surface is in the horizontal direction in the axial section, the axial section of the bottom guide surface is inclined so that the outer peripheral side is on the lower side. The granular material can be easily dropped from the inner periphery of the granular material passage.

  In this configuration, in the axial section, the side guide surface may be along the vertical direction, and an arc shape may be formed between the side guide surface and the bottom guide surface. If the side guide surface is along the vertical direction in the axial cross section, the centrifugal force applied to the powder passing through the powder passage can be reliably received. And, if the space between the side guide surface and the bottom guide surface is an arc shape in the axial section, it is easy for the particles near the side guide surface to easily move toward the bottom guide surface. Become. As a result, when the granular material is clogged in the granular material passage, the granular material near the side guide surface can be easily dropped from the inner peripheral side of the granular material passage.

  In any one of the configurations described above, the powder passage may be disposed at a position separated from the inner wall of the container by a predetermined distance.

  If it is this structure, the diameter of a granular material channel | path becomes smaller than the case where a granular material channel | path is formed along the inner wall of a container (a side part guide surface is formed in the inner wall of a container). Thereby, the centrifugal force which acts on the granular material which passes a granular material channel | path becomes larger than the case where a granular material channel | path is formed along the inner wall of a container. Therefore, when clogging does not occur, the granular material passing through the granular passage is less likely to move to the inner peripheral side of the granular passage and falls from the inner peripheral side of the granular passage. Is suppressed.

As described above, the granular material charging device of the present invention is provided above the container, and a supply path for supplying the granular material to the container via the granular material passage, and below the container At least one of the discharge passages for discharging the granular material supplied through the granular material passage from the container via a butterfly valve, and the butterfly valve includes a valve body having a shaft portion. , and opening and closing operations by rotating through the shaft portion, the path through the butterfly valve is configured to avoid the shaft portion.

  If it is this structure, it can prevent that a granular material is pinched | interposed and damaged around the axial part of a valve body at the time of opening / closing operation | movement of a butterfly valve. Further, with this configuration, the butterfly valve can be a split butterfly valve.

  Here, the split butterfly valve is a butterfly valve that includes an active valve and a passive valve, and functions as one butterfly valve by docking (see Patent Document 5). The split butterfly valve is opened and closed by driving means attached to the active valve while the active valve and the passive valve are docked. In the split butterfly valve, it is possible to prevent the substance flowing through the path in which the valve is disposed from adhering to the opposing surfaces of the valve body of the active valve and the valve body of the passive valve in the docked state. For this reason, the split butterfly valve is widely used in the opening of containers for highly active drugs and the like.

Moreover, as described above, in the granular material charging device of the present invention, the discharge path is configured to avoid the shaft portion via the butterfly valve, and is inserted into the container through the discharge path. A cleaning liquid ejecting means for ejecting a cleaning liquid at a side of the granular material passage is provided, and the cleaning liquid ejecting means moves linearly between the outside of the container and the lateral side of the granular material passage. It is configured to be possible.

  If it is this structure, the structure for moving a washing | cleaning-liquid ejection means and a drive means can be made into a simple structure, and the manufacturing cost of washing | cleaning equipment can be reduced. Examples of the manner in which the cleaning liquid is ejected by the cleaning liquid ejecting means having this configuration include a shower.

  Further, in the method of cleaning the granular material charging device of this configuration, the cleaning liquid ejecting means is inserted into the container through the discharge path, and the cleaning liquid is ejected from the cleaning liquid ejecting means at a side of the granular material passage. In the cleaning method of the granular material charging device characterized in that the cleaning liquid sprayed in the container can be recovered through the discharge path. As a result, the equipment required for cleaning is only required below the container, so that the manufacturing cost of the cleaning equipment can be reduced. Furthermore, in this configuration, if the cleaning liquid ejected from the cleaning liquid ejecting means is sprayed to the granular material passage through the opened inner peripheral side of the granular material passage, Detergency can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the clogging of the granular material in a granular material injection device can be suppressed.

It is a schematic sectional drawing of the container with which the granular material injection device which concerns on embodiment of this invention was mounted | worn. (A) is a left side view of the granular material charging device, (B) is a front view of the granular material charging device, and (C) is a right side view of the granular material charging device. FIG. 3A is a top view of FIG. 2B, and FIG. 3B is a cross-sectional view taken along line XX of FIG. It is an enlarged view of the A section of FIG. It is a figure which shows the state which supplies a granular material to a container. It is a figure which shows the supply part of a granular material, (A) is a schematic sectional drawing, (B) is a schematic bottom view. It is the schematic which shows the valve body of a split butterfly valve, (A) is a perspective view, (B) is a top view, (C) is a side view.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic cross-sectional view of a container 2 equipped with a granular material charging device 1 according to an embodiment of the present invention. In this embodiment, the granular material is a pharmaceutical tablet, and the container 2 is for conveying the tablet, and is called a so-called IBC (intermediate bulk container).

  The container 2 has the surrounding wall part 2a and the lower end wall part 2b connected to the lower end of the surrounding wall part 2a. In the present embodiment, the peripheral wall portion 2a has a quadrangular cylindrical shape, and the lower end wall portion 2b has a quadrangular frustum shape. Moreover, the container 2 has the four pillar parts 2c fixed to each of the four corner | angular parts of the surrounding wall part 2a, and the girder part 2d which fixes these pillar parts 2c mutually.

  The container 2 has a disk part 2g provided on the upper side of the peripheral wall part 2a via a connection part 2e and a cylindrical part 2f. The disc part 2g has a through-hole 2h in the center thereof, and the granular material charging device 1 is attached to the through-hole 2h. An upper pipe portion 2i is connected to the upper side of the through hole 2h of the disc portion 2g. A first passive valve 2j is provided at the upper end of the upper pipe portion 2i. The first passive valve 2j constitutes a first split butterfly valve by docking with a first active valve of a supply unit described later. Except when supplying the granular material to the container 2, the first passive valve 2j is closed, and the upper end opening of the container 2 is closed by the first driven valve body 2k of the first passive valve 2j.

  On the other hand, a lower pipe portion 21 is connected to the lower side of the lower end wall portion 2b. A second passive valve 2m is provided at the lower end of the lower pipe portion 2l. The second passive valve 2m is configured as a second split butterfly valve by docking with a second active valve of a discharge unit described later. Except when discharging the granular material from the container 2, the second passive valve 2m is closed and the lower end opening of the container 2 is closed by the second driven valve body 2n.

  The lower end wall 2b of the container 2 has a bottom 2o, and an opening 2p is provided in the bottom 2o. A straight discharge guide tube 2q is connected to the lower side of the opening 2p of the bottom 2o. On the inner wall of the lower end wall portion 2b of the container 2, a guide surface 2r for guiding the granular material to the discharge guide tube 2q is formed.

  As shown in FIG.2 and FIG.3, the granular material injection | throwing-in apparatus 1 uses the top plate 1a, the helical member 1b, and the guide plate 1c as main components.

  The top plate 1a is a disk-shaped member and is made of a metal material such as stainless steel, for example. Of course, the material is not limited to this, and may be made of resin or the like. The top plate 1a is provided with a passage port 1d through which the granular material supplied to the container 2 passes. The outer peripheral edge portion of the top plate 1 a is attached to the peripheral edge portion of the through hole 2 h of the disc portion 2 g in the container 2. Inside the upper pipe portion 2i of the container 2, a guide surface 2s that guides the granular material supplied to the container 2 to the passage port 1d is provided.

  As shown in FIG. 4, the spiral member 1 b includes a bottom portion 1 e having a predetermined thickness formed in a spiral shape at a predetermined pitch along the vertical direction (vertical direction in the present embodiment), and an upper portion of the bottom portion 1 e. A side portion 1f having a predetermined height is formed along the outer peripheral edge. The passage 1g of the granular material is formed by the bottom 1e and the side 1f of the spiral member 1b. Accordingly, the powder passage 1g is disposed in the container 2 and is formed in a spiral shape along the vertical direction. The upper surface of the bottom 1e is a bottom guide surface 1h for guiding the powder in the granule passage 1g from the bottom, and the inner peripheral surface of the side 1f is the outer periphery of the powder in the granule passage 1g. It is the side part guide surface 1i guided from the side. The granular material charging device 1 charges the granular material into the container 2 through the granular material passage 1g. The spiral member 1b is made of, for example, a resin such as high-density polyethylene, but the material is not particularly limited to this, and various materials can be selected.

  And the inner peripheral side 1j of the granular material passage 1g is opened so that the granular material falls from the inner peripheral side 1j of the granular material passage 1g to prevent clogging of the granular material in the granular material passage 1g. ing. No upward projecting portion is formed on the inner peripheral edge of the bottom guide surface 1h, and the entire area in the vertical direction of the inner peripheral side 1j of the granular material passage 1g is open. However, the present invention is not limited to this. If the granular material falls from the inner peripheral side 1j of the granular material passage 1g to prevent clogging of the granular material in the granular material passage 1g, for example, the bottom guide surface 1h An upward projecting portion may be provided along the inner peripheral edge, and the granule passage 1g may be guided from the inner peripheral side by the outer peripheral surface thereof.

  The outer peripheral surfaces of the bottom portion 1e and the side portion 1f are disposed at positions separated from the inner wall of the container 2 by a predetermined distance. Further, the outer peripheral surfaces of the bottom 1e and the side 1f are continuous with each other and along the vertical direction.

  The spiral member 1b has a guide column 1k at its upper end. The guide column portion 1k guides the granular material that has passed through the passage port 1d to the upper end portion of the granular material passage 1g on the outer peripheral surface. That is, when there is no guide column part 1k, the granular material that has passed through the passage opening 1d of the top plate 1a can rebound directly or at the bottom 1e and fall from the inner peripheral side 1j of the granular material passage 1g. However, the guide column portion 1k prevents this.

  The spiral member 1b is fixed to the top plate 1a by, for example, screwing a bolt 11 inserted into the top plate 1a into the guide column portion 1k.

  The bottom guide surface 1h is a cross section along the circumferential direction of the spiral member 1b and has a predetermined inclination angle α (for example, 31 °) with respect to the horizontal direction. In the present embodiment, the bottom guide surface 1h is a cross section along the axial direction of the spiral member 1b, is linear, and extends in the horizontal direction. However, the present invention is not limited to this. In the axial cross section, the bottom guide surface 1h may be linear and inclined such that the outer peripheral side is higher or lower with respect to the horizontal direction, or may be curved. .

  In the present embodiment, the side guide surface 1i is a cross section along the axial direction of the spiral member 1b, is linear, and is along the vertical direction. However, the present invention is not limited to this, and in the axial section, the side guide surface 1i may be linear and inclined to the outer peripheral side or the inner peripheral side with respect to the vertical direction, or may be curved. .

  In the cross section along the axial direction of the spiral member 1b, the space between the bottom guide surface 1h and the side guide surface 1i has an arc shape, for example, R10 or less. When it exceeds R10, the granular material gets over the side portion 1f and easily spills outside. However, the present invention is not limited to this, and the section between the bottom guide surface 1h and the side guide surface 1i may be angular in the axial cross section.

  In the present embodiment, a downward projecting portion 1m having a predetermined height is formed on the lower side of the bottom portion 1e along the inner peripheral edge portion of the bottom portion 1e. The inner peripheral surface of the downward projecting portion 1m is continuous with the inner peripheral surface of the bottom portion 1e and extends along the vertical direction. Further, the downward projecting portion 1m is gradually thinned downward, and the lower end is pointed. The overall strength of the spiral member 1b can be increased by the downward projecting portion 1m. In addition, the shape of the downward protrusion part 1m which raises an intensity | strength is not limited to the said shape, It can provide in the range which does not become an obstacle of the fall of the granular material from the inner peripheral side 1j.

  The guide plate 1c is disposed and fixed between the upper end portion of the side portion 1f and the top plate 1a. The guide plate 1c guides the granular material that has passed through the passage opening 1d of the top plate 1a to the upper end portion of the granular material passage 1g on its inner peripheral surface. That is, when there is no guide plate 1c, there is a possibility that the granular material that has passed through the passage opening 1d of the top plate 1a bounces directly or at the bottom 1e and gets over the side 1f. Prevent.

  Moreover, in this embodiment, as a means for washing | cleaning the inner surface of the granular material injection | throwing-in apparatus 1 and the container 2, as shown with a dashed-two dotted line in FIG. A supply pipe is provided which extends linearly downward from the pipe and supplies the cleaning liquid to the cleaning liquid jetting means W. The cleaning liquid ejecting means W is inserted into the container 2 through the discharge guide tube 2q (discharge path), and ejects the cleaning liquid on the side of the granular material charging apparatus 1 (the granular material passage 1g). Examples of the cleaning liquid jetting unit W include a cleaning ball, but other units such as a cleaning nozzle may be used.

  The discharge guide tube 2q is configured such that the cleaning liquid ejecting means W can move linearly between the outside of the container 2 and the side of the powder and particle injection device 1. That is, the discharge guide tube 2q has a uniform inner diameter, and is arranged in a straight line along the vertical direction (vertical direction in the present embodiment). And the position of the discharge guide tube 2q is shifted with respect to the position of the granular material charging device 1 in a plan view, and the inner peripheral surface of the discharge guide tube 2q in the plan view is the same as that of the granular material charging device 1. There is a sufficient gap for the cleaning liquid ejecting means W to pass through the outer peripheral surface of the side portion 1f of the spiral member 1b.

  In the present embodiment, the discharge guide pipe 2q is provided. However, when the lower guide part 2l communicates directly with the inside of the container 2 without providing the discharge guide pipe 2q, the lower guide part 2l is seen in plan view. The inner peripheral surface has a sufficient gap for the cleaning liquid ejecting means W to pass through the outer peripheral surface of the side portion 1 f of the spiral member 1 b of the granular material charging device 1. In this case, since the lower tube portion 21 is disposed below the powder injection device 1, the inner diameter of the lower tube portion 21 is equal to the particle injection device 1 (on the spiral member 1 b side). It is larger than the outer diameter of the part 1f).

  In the present embodiment, cleaning of the inner surfaces of the granular material charging device 1 and the container 2 is performed as follows. As shown by a two-dot chain line in FIG. 1, the cleaning liquid ejecting means W and the cleaning liquid supply pipe are inserted into the container 2 through the discharge guide pipe 2q. Then, the cleaning liquid is ejected from the cleaning liquid ejecting means W at the side of the granular material charging device 1 (the granular material passage 1 g) in the container 2. Then, the cleaning liquid ejected from the cleaning liquid ejecting means W is sprayed to the granular material passage 1g via the inner peripheral side 1j of the opened granular material passage 1g, and the granular material charging device 1 is cleaned. On the other hand, the cleaning liquid ejected from the cleaning liquid ejecting means W is also sprayed on the inner surface of the container 2, and the inner surface of the container 2 is cleaned.

  The cleaning liquid ejecting means W may eject the cleaning liquid at a plurality of predetermined positions on the side of the granular material charging device 1 or while continuously moving the lateral side of the granular material charging device 1 in the vertical direction. The cleaning liquid may be ejected. The cleaning liquid ejecting means W may change the direction in which the cleaning liquid is ejected, or may simultaneously eject the cleaning liquid in all directions.

  In the granular material charging device 1 configured as described above, the following effects can be obtained.

  In the present embodiment, the inner peripheral side 1j of the granular material passage 1g so that the granular material falls from the inner peripheral side 1j of the granular material passage 1g so as to prevent clogging of the granular material in the granular material passage 1g. Is open. Accordingly, when the flow of the granular material stagnates and clogs in the granular material passage 1g, the granular material falls from the inner peripheral side 1j of the granular material passage 1g. Specifically, when the powder is flowing smoothly, the powder moves on the side guide surface 1i side on the bottom guide surface 1h by the centrifugal force acting when flowing through the spiral powder channel 1g. To do. However, when the flow rate is reduced in a part of the granular material passage 1g due to a large amount of the granular material and the granular material is clogged, the centrifugal force acting on the granular material is weakened due to the decrease in the flow rate. Then, the granular material approaches the inner peripheral side 1j of the granular material passage 1g, the granular material falls from the inner peripheral side 1j of the granular material passage 1g, and the clogging of the granular material is chained. Before reaching the upper part of the body passage 1g, the clogging of the granular material is eliminated. Thus, clogging of the granular material in the granular material passage 1g is suppressed. That is, in the granular material charging device 1 of this embodiment, clogging of the granular material can be suppressed.

  Moreover, in this embodiment, since the up-and-down direction whole area | region of the inner peripheral side 1j of the granular material channel | path 1g is open | released, when a granular material is clogging in a granular material channel | path, the inner periphery of the granular material channel | path 1g The granular material can be easily dropped from the side 1j. Further, since the bottom guide surface 1h is in the horizontal direction in the axial section, the axial section of the bottom guide surface 1h is smaller than the case where the outer peripheral side is inclined downward. The granular material can be easily dropped from the inner periphery of the body passage 1g.

  Moreover, since the side guide surface 1i is along the vertical direction in the axial cross section, the centrifugal force applied to the powder passing through the powder passage 1g can be reliably received. And since the space between the side guide surface 1i and the bottom guide surface 1h has an arc shape in the axial cross section, the granular material near the side guide surface 1i easily moves toward the bottom guide surface 1h. It becomes easy. As a result, when the granular material is clogged in the granular material passage, the granular material near the side guide surface 1i can be easily dropped from the inner peripheral side 1j of the granular material passage 1g.

  Further, since the granule passage 1g is disposed at a position separated from the inner wall of the container 2 by a predetermined distance, the granule passage 1g is formed along the inner wall of the container 2 (the side guide surface 1i is formed in the container). 2), the swirl diameter of the granular material passage 1g becomes smaller. Thereby, the centrifugal force which acts on the granular material which passes through the granular material channel | path 1g becomes larger than the case where the granular material channel | path 1g is formed along the inner wall of the container 2. FIG. Therefore, when clogging does not occur, the granular material passing through the granular passage 1g is less likely to move to the inner peripheral side 1j of the granular passage 1g, and the inner peripheral side of the granular passage 1g. Falling from 1j is suppressed.

  Further, since the side portion 1f has a predetermined height, there is a gap between the upper end of the side portion 1f and the upper bottom portion 1e. Therefore, by the shower through this gap, it is possible to perform stationary wetting and stationary cleaning on the inner peripheral side of the side portion 1f. Further, since the entire upper and lower direction of the inner peripheral side 1j of the powder passage 1g is opened, there is a gap between the inner peripheral edge 1f 'of the bottom guide surface 1h and the upper lower protruding portion 1m. Therefore, by the shower through the gap, stationary wetness and stationary cleaning can be performed on the bottom guide surface 1h and the side guide surface 1i. Thereby, the washing | cleaning property of the granular material injection device 1 can be improved.

  Next, the supply part for supplying a granular material to the container 2 and the discharge part from which the granular material is discharged from the container 2 will be described.

  The supply unit 3 shown in FIG. 5 is provided downstream of a processing device (not shown) that performs predetermined processing (for example, removal of powder adhered to the tablet) on the granular material, and the predetermined processing is completed. The granules are supplied to the container 2. The supply unit 3 includes a powder supply tube 3a, a large diameter tube 3b connected to the lower end of the supply tube 3a, a flexible tube 3c connected to the lower end of the large diameter tube 3b, and the flexible tube 3c. And a first active valve 3d provided at the lower end. In the present embodiment, the large diameter tube 3b has a larger diameter than the supply tube 3a and the flexible tube 3c, and is substantially the same diameter as the first active valve 3d. However, the present invention is not limited to this, and the large-diameter tube 3b only needs to be configured to guide the granular material to the flexible tube 3c. For example, the large-diameter tube 3b may be the supply tube 3a or the acceptable tube. It may be the same diameter as the flexible tube 3c.

  As shown in an enlarged view in FIG. 6 (A), a guide surface 3e for guiding the granular material to the flexible tube 3c is formed at the lower part of the inner wall of the large diameter tube 3b. The flexible tube 3c is flexible and can absorb misalignment between the first active valve 3d and the first passive valve 2j. A linear supply guide tube 3f connected to the flexible tube 3c is disposed inside the first active valve 3d. The lower end of the flexible tube 3c and the upper end of the supply guide tube 3f are fixed to the upper wall portion of the first active valve 3d. In addition, as shown in FIG. 5, it is preferable that the supply guide tube 3f is installed so as to be positioned above a higher portion of the guide surface 2s of the container 2 in a state where the supply unit 3 and the container 2 are docked. .

  As shown by a solid line in FIG. 6A, the first active valve 3d is in a closed state and the lower end opening of the supply unit 3 is the first drive of the first active valve 3d except when supplying the granular material. It is closed by the valve body 3g. The first active valve 3d is docked with the first passive valve 2j of the container 2 to constitute the first split butterfly valve V.

  As shown in FIG. 7A, the first drive valve body 3g of the first active valve 3d is provided with a first drive shaft portion 3h. In the present invention, the first drive shaft portion 3h includes not only the shaft-shaped portion 3h1 but also a raised portion 3h2 raised from the first drive valve body 3g. The shaft-shaped portion 3h1 is fixed to the raised portion 3h2. As shown in FIG. 7B, the center line of the shaft-shaped portion 3h1 is on an extension line of the diameter of the first drive valve body 3g in plan view. As shown in FIG. 7C, the center line of the shaft-shaped portion 3h1 is inclined with respect to the first drive valve body 3g in a side view. The center line of the shaft-shaped portion 3h1 is the rotation center axis when the first drive valve body 3g rotates. In addition, the 1st driven shaft part 2t provided in the 1st driven valve body 2k shown to FIG. 6 (A) is also the aspect similar to the 1st drive shaft part 3h.

  The first split butterfly valve V is opened and closed as follows. That is, the valve body of the first split butterfly valve V is configured by integrating the first drive valve body 3g of the first active valve 3d and the first driven valve body 2k of the first passive valve 2j by docking. In this state, when the first drive shaft 3h of the first drive valve body 3g of the first active valve 3d is rotationally driven by a drive unit (not shown), the integrated first drive valve body 3g and the first driven valve body 2k. However, they rotate around the rotation center axis of the first drive shaft portion 3h and the first driven shaft portion 2t which each has. As a result, the integrated first drive valve body 3g and the first driven valve body 2k shift between the closed posture Pc and the open posture Po shown in FIG.

  As shown in FIG. 6B, the bottom opening 3i of the supply guide tube 3f excludes the first drive shaft portion 3h in the first drive valve body 3g of the closed first active valve 3d when viewed from the bottom. Located in the area. Further, as shown in FIG. 6A, the lower end opening 3i of the supply guide tube 3f is in a region excluding the first drive shaft portion 3h in the first drive valve body 3g of the closed first active valve 3d. Proximity (or contact).

  When the first active valve 3d is closed, the lower end opening 3i of the supply guide tube 3f is closed by the first drive valve body 3g by the supply guide tube 3f configured as described above, so that the granular material is supplied. Even if it is introduced into the guide tube 3f, the particles remain in the supply guide tube 3f. In the open state of the first active valve 3d (first split butterfly valve V), the lower end opening 3i of the supply guide pipe 3f is opened, and the powder particles fall downward from the supply guide pipe 3f. That is, no matter what the first active valve 3d is in the closed state or in the open state, the granular material does not exist in the vicinity of the first drive shaft portion 3h of the first drive valve body 3g. As described above, the supply path for supplying the granular material to the container 2 passes through the internal space of the supply guide pipe 3f in the first active valve 3d in the supply unit 3, and the first split butterfly valve V The first drive shaft portion 3h is avoided. Therefore, during the opening / closing operation of the first split butterfly valve, it is possible to prevent the granular material from being sandwiched and damaged between the raised portion 3h2 of the first drive shaft portion 3h and the surrounding wall portion.

  On the other hand, the discharge unit (not shown) is a part that receives the granular material discharged from the container 2. The discharge unit is provided in a processing device (not shown) that performs a predetermined process on the powder and granular material discharged from the container 2. The discharge part includes a second active valve at its upper end. Except when receiving the granular material, the second active valve is closed, and the upper end opening of the discharge portion is closed by the second drive valve body of the second active valve.

  The relationship between the second active valve of the discharge part and the second passive valve 2m of the container 2 is the same as the relationship between the first active valve 3d and the first passive valve 2j described in FIG. That is, the second active valve is configured such that the second passive valve 2m of the container 2 is docked to form a second split butterfly valve. And the 2nd drive valve body and its 2nd drive shaft part of the 2nd active valve are the modes similar to the 1st drive valve body 3g and the 1st drive shaft part 3h. The second driven valve body 2n of the second passive valve 2m and its second driven shaft portion (not shown) are in the same manner as the first driven valve body 2k and the first driven shaft portion 2t.

  Similar to the first split butterfly valve V, the second split butterfly valve opens and closes as follows. That is, the valve body of the second split butterfly valve is configured by integrating the second drive valve body of the second active valve and the second driven valve body 2n of the second passive valve 2m by docking. In this state, when the second drive shaft portion of the second drive valve body of the second active valve is rotationally driven by a drive portion (not shown), the integrated second drive valve body and second driven valve body 2n are respectively The second drive shaft and the second driven shaft having the rotation center axis. Thereby, the integrated 2nd drive valve body and 2nd driven valve body 2n transfer between the attitude | position of a closed state, and the attitude | position of an open state.

  The positional relationship between the lower end opening 2u and the second passive valve 2m in the discharge guide tube 2q of the container 2 is the same as the positional relationship between the supply guide tube 3f and the first active valve 3d described in FIG. Yes. That is, when viewed from the bottom, the lower end opening 2u of the discharge guide tube 2q is located in a region excluding the second driven shaft portion of the second driven valve body 2n of the closed second passive valve 2m. Further, the lower end opening 2u of the discharge guide pipe 2q is close to (or abuts on) an area excluding the second driven shaft portion of the second driven valve body 2n of the closed second passive valve 2m.

  When the second passive valve 2m is closed by the discharge guide pipe 2q configured in this way, the lower end opening 2u of the discharge guide pipe 2q is closed by the second driven valve body 2n, and the granular material is discharged. Even if it introduce | transduces into the guide pipe 2q, a granular material will remain in the discharge guide pipe 2q. In the open state of the second passive valve 2m (second split butterfly valve), the lower end opening 2u of the discharge guide pipe 2q is opened, and the granular material falls downward from the discharge guide pipe 2q. That is, even if the 2nd passive valve 2m is a closed state or an open state, a granular material does not exist in the vicinity of the 2nd driven shaft part of the 2nd driven valve body 2n. As described above, the discharge path for discharging the granular material from the container 2 passes through the internal space of the discharge guide pipe 2q in the second passive valve 2m in the container 2, and the second path of the second split butterfly valve. It is comprised so that a driven shaft part may be avoided. Therefore, at the time of opening and closing the second split butterfly valve, it is possible to prevent the granular material from being sandwiched and damaged between the raised portion of the second driven shaft portion and the surrounding wall portion.

  Next, a procedure for supplying the granular material to the container 2 and a procedure for discharging the granular material from the container 2 will be described.

  The first active valve 3d is in a closed state in advance.

  Then, the empty container 2 in which both the first passive valve 2j and the second passive valve 2m are closed (the state shown in FIG. 1) is conveyed from another place to the lifting device 4 (see FIG. 5), for example, by a lifter. And installed in the lifting device 4.

  Then, the container 2 is raised to a predetermined height by the lifting device 4, and the first passive valve 2 j of the container 2 is docked with the first active valve 3 d of the supply unit 3. Thus, the first split butterfly valve V is configured.

  Next, the first split butterfly valve V is opened by rotationally driving the first drive shaft portion 3h of the first drive valve body 3g. Now, the container 2, the supply part 3, and the raising / lowering apparatus 4 will be in the state shown in FIG.

  In this state, the granular material is supplied from the supply unit 3 to the container 2. That is, after the granular material that has undergone predetermined processing in the processing apparatus is introduced into the large-diameter pipe 3b via the supply pipe 3a, it is guided by the guide surface 3e and introduced into the flexible pipe 3c. It falls into the upper pipe part 2i of the container 2 from the lower end opening part 3i via the pipe 3f. And the granular material which fell in the upper side pipe part 2i of the container 2 is guided to the passage opening 1d of the top plate 1a of the granular material injection | throwing-in apparatus 1 by the guide surface 2s. And the granular material which passed 1 d of passages is guided to the bottom part guide surface 1h and the side part guide surface 1i of the spiral member 1b, and is supplied to the downward direction in the container 2 from the lower end of the spiral member 1b. . That is, the granular material is supplied below the container 2 through the granular material passage 1g.

  When the granular material is likely to be clogged while passing through the granular material passage 1g, as described above, the granular material falls from the inner peripheral side 1j of the granular material passage 1g, and the granular material is clogged. It is suppressed.

  After the container 2 is filled with a desired amount of powder particles, the first split butterfly valve V is closed by rotating the first drive shaft portion 3h of the first drive valve body 3g.

  Thereafter, the docking between the first active valve 3d and the first passive valve 2j is released. Then, the container 2 is lowered to a predetermined height by the lifting device 4. And the container 2 is lifted with a lifter etc., and the container 2 is conveyed to another place for discharging the granular material in the container 2.

  A second active valve that can be docked with the second passive valve 2m of the container 2 is disposed at a place for discharging the granular material in the container 2, and the container 2 is placed above this by using a lifter or the like. Install.

  The second active valve of the discharge portion below the container 2 is raised and docked with the second passive valve 2m of the container 2 to constitute a second split butterfly valve.

  Then, when the second split butterfly valve is opened after docking, the powder particles in the container 2 are guided to the guide surface 2r and discharged to the discharge portion via the discharge guide tube 2q.

  After all the granular materials in the container 2 are discharged, the second split butterfly valve is closed.

  Then, the docking between the second active valve and the second passive valve 2m is released, and the second active valve is lowered. And the container 2 is conveyed to another place with a lifter or the like. Thus, the supply of the granular material to the container 2 and the discharge of the granular material from the container 2 are completed.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the technical idea. For example, in the above-described embodiment, the powder is a pharmaceutical tablet, but may be a tablet such as a food or agrochemical, a soft capsule, a pellet, or a granule. Moreover, in the said embodiment, although the container was IBC (intermediate bulk container), it is not limited to this, A hopper, a drum, etc. may be sufficient.

DESCRIPTION OF SYMBOLS 1 Powder body injection | throwing-in apparatus 1a Top plate 1b Spiral member 1g Powder body channel | path 1h Bottom part guide surface 1i Side part guide surface 1j Inner peripheral side 2 Container 2j 1st passive valve 2k 1st driven valve body 2m 2nd passive valve 2n 2nd driven valve body 2t 1st driven shaft part 3d 1st active valve 3g 1st drive valve body 3h 1st drive shaft part V 1st split butterfly valve

Claims (8)

A powder passage formed in a container and spirally formed in the vertical direction includes a bottom guide surface that guides the powder in the powder passage from the bottom side, and the powder In the granular material throwing device comprising a side guide surface for guiding the granular material in the passage from the outer peripheral side, and throwing the granular material into the container through the granular material passage,
In order to prevent clogging of the granular material in the granular material passage, so that the granular material falls from the inner peripheral side of the granular material passage, the inner peripheral side of the granular material passage is opened ,
Provided above the container and supplied via the powder passage to the container and a supply path for supplying the powder to the container, and provided below the container and supplied via the powder passage At least one of the discharge paths for discharging the granular material from the container passes through the butterfly valve,
The butterfly valve opens and closes by rotating a valve body having a shaft portion through the shaft portion,
The path passing through the butterfly valve is configured to avoid the shaft portion,
The discharge path is configured to avoid the shaft portion via the butterfly valve,
A cleaning liquid ejecting means is provided which is inserted into the container through the discharge path and ejects a cleaning liquid at a side of the granular material passage,
The granular material charging device , wherein the discharge path is configured such that the cleaning liquid ejecting means can move linearly between the outside of the container and the side of the granular material passage .   2. The granular material charging apparatus according to claim 1, wherein the entire region in the vertical direction on the inner peripheral side of the granular material passage is opened.   The granular material charging device according to claim 2, wherein the bottom guide surface is along a horizontal direction in an axial cross section.   The powder according to claim 3, wherein the side guide surface is along a vertical direction in an axial section, and an arc shape is formed between the side guide surface and the bottom guide surface. Granule input device.   The granular material charging device according to any one of claims 1 to 4, wherein the granular material passage is disposed at a position separated from the inner wall of the container by a predetermined distance. 2. The powder and granular material charging device according to claim 1 , wherein the butterfly valve is a split butterfly valve. A method for cleaning the granular material charging device according to claim 1 ,
Inserting the cleaning liquid ejection means into the container through the discharge path;
A cleaning method for a granular material charging apparatus, characterized in that a cleaning liquid is ejected from the cleaning liquid ejection means at a side of the granular material passage. 8. The granular material according to claim 7 , wherein the cleaning liquid ejected from the cleaning liquid ejecting means is dispersed in the granular passage through the opened inner peripheral side of the granular passage. How to clean the dosing device.

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