JP6513505B2 - Powder processing system - Google Patents

Description

  The present invention relates to a powder and particle processing apparatus for coating, granulating, mixing, drying, etc. powder, powder, etc. such as pharmaceuticals, foods, agricultural chemicals, etc. In particular, the powder and particles having a rotary drum driven to rotate around an axis It relates to a processing device.

  Film coating, sugar coating, etc., on tablets, soft capsules, pellets, granules, etc. of pharmaceuticals, foods, pesticides etc. (hereinafter referred to collectively as powder and granules) or granulation, or In order to carry out mixing, drying and the like, a powder and granular material processing apparatus having a rotary drum driven to rotate around its axis is used.

  In this type of powder and particle processing apparatus, one that performs granulation or coating processing is supported by the support portion at the operating position inside the rotary drum and sprays the spray liquid toward the powder and particle layer made of powder and particles. A nozzle (spray nozzle) to be used (for example, see Patent Document 1).

JP 2014-4556 A

  By the way, if the nozzle is clogged while granulating or coating treatment is carried out on the granular material with such granular material processing apparatus, it is necessary to temporarily stop this treatment and to remove the cause. was there. Therefore, when the nozzle is clogged, the production efficiency of the granular product is reduced.

  SUMMARY OF THE INVENTION In view of the above-described circumstances, the present invention has a technical object to prevent a nozzle from being clogged during granulation or coating processing in a granular material processing apparatus provided with a rotary drum.

  The powder and granular material processing apparatus according to the present invention invented to solve the above-mentioned problems has a rotary drum which is internally driven and driven to rotate about its axis, and the internal operation of the rotary drum. And a nozzle which is supported by a support portion at a position and sprays a spray liquid toward the powder particle layer made of the powder particles, and the powder particle processing apparatus performs granulation or coating treatment on the powder particles, The nozzle in the operating position is an operating nozzle, a replacement nozzle to be replaced with the operating nozzle, and a nozzle replacement mechanism for replacing the operating nozzle with the replacement nozzle during the granulation or coating process. It is characterized by

  In this configuration, the operating nozzle is replaced with a replacement nozzle during the granulation or coating process by the nozzle replacement mechanism. Therefore, if a nozzle in a state where the whole is cleaned, a nozzle which cleans parts such as an air cap which will be clogged, or the like is used as a replacement nozzle, a new operation is performed after replacing the operation nozzle with the replacement nozzle. There will be no clogging of the replacement nozzle that has become a nozzle. Therefore, if this nozzle replacement is carried out periodically, it is possible to prevent the nozzle from being clogged during the granulation or coating process. That is, according to the powder and particle processing apparatus according to the present invention, in the powder and particle processing apparatus including the rotary drum, it is possible to prevent the nozzle from being clogged during the granulation or coating processing.

  Also, conventionally, even if the nozzle is not clogged during granulation or coating processing, if the air cap of the nozzle or the like gets dirty, the mist diameter becomes coarse, which may lead to the deterioration of the quality of the granular product. . In addition, if the nozzle is clogged, leakage of the spray liquid from the nozzle or fluctuation of the spray pattern may occur, which may result in generation of defective powder and granular material products. These problems can also be solved by replacing the operating nozzle with a replacement nozzle periodically during the granulation or coating process by the nozzle replacement mechanism.

  In the above configuration, the nozzle replacement mechanism has the support portion configured to be rotatable, and the support portion supports the replacement nozzle located at a position different from the operating position inside the rotating drum. The rotation of the support portion may move the operating nozzle from the operating position and move the replacement nozzle to the operating position.

  With this configuration, the operation nozzle can be replaced with the replacement nozzle during the granulation or coating process by the rotation of the support portion of the nozzle replacement mechanism. In particular, in this configuration, since the replacement nozzle is inside the rotary drum, it is not necessary to open the door of the powder and particle processing apparatus when replacing the nozzle. Therefore, it is possible to suppress the influence on the granulation or coating process by opening the door at the time of replacing the nozzle.

  In the above configuration, the nozzle replacement mechanism has the support portion configured to be pivotable, and a second support portion that supports the nozzle for replacement and can be pivoted coaxially with the pivot axis of the support portion. The pivoting of the support portion moves the working nozzle from the working position to the outside of the rotary drum, and the pivoting of the second support portion moves the replacement nozzle from the outside of the rotary drum to the working position. May be

  With this configuration, the operation nozzle can be replaced with the replacement nozzle during the granulation or coating process by the pivoting of the support portion of the nozzle replacement mechanism and the pivoting of the second support portion.

  In the above configuration, the nozzle replacement mechanism receives the working nozzle from the support portion outside the rotary drum and the support portion configured to be linearly movable, and the replacement nozzle is supported by the support portion. And the transfer nozzle moves from the operating position to the outside of the rotary drum, and the replacement nozzle moves from the outside of the rotary drum to the operating position. You may

  With this configuration, the operation nozzle can be replaced with the replacement nozzle during the granulation or coating process by linear movement of the support portion of the nozzle replacement mechanism and delivery of the operation nozzle and the replacement nozzle by the delivery unit. .

  ADVANTAGE OF THE INVENTION According to this invention, in the granular material processing apparatus provided with the rotating drum, the situation where a nozzle is blocked during granulation or a coating process can be avoided. As a result, the granulation or coating treatment can be stably performed for a long time, and a decrease in the production efficiency of the granular material product can be prevented. Further, according to the present invention, it is possible to prevent the deterioration of the quality of the granular product and the generation of the defective granular product.

It is a schematic front view of the granular material processing apparatus concerning a 1st embodiment of the present invention. It is a schematic plan view of the granular material processing device concerning a 1st embodiment of the present invention. It is a schematic front view of the granular material processing apparatus after nozzle exchange. It is a schematic plan view of the granular material processing apparatus concerning a 2nd embodiment of the present invention. It is the schematic of the principal part of the granular material processing apparatus which concerns on 3rd Embodiment of this invention, (A) is a top view, (B) is a BB arrow directional cross-sectional view of (A).

  FIG. 1: and FIG. 2 are the schematic front view and schematic plan view of the granular material processing apparatus based on 1st Embodiment of this invention. FIG. 1 and FIG. 2 show a state in which the granular material processing apparatus performs granulation or coating treatment (hereinafter simply referred to as “treatment”) on granular material.

  In the powder and granular material processing apparatus, the powder and granular material to be treated is accommodated inside, and the rotary drum 1 is rotationally driven about an axis inclined with respect to a horizontal line, and the support portion at the operating position P1 inside the rotary drum 1 2, an operating nozzle 3 for spraying a spray liquid toward a granular layer made of granular material, a replacement nozzle 4 to be replaced with the operational nozzle 3, and an operating nozzle during processing of granular material A nozzle exchange mechanism 5 for replacing 3 with a replacement nozzle 4 and a casing 6 for accommodating the rotary drum 1 are provided.

  In the present embodiment, the replacement nozzle 4 has the same shape and size as the operation nozzle 3 but is not limited thereto. The replacement nozzle 4 is in a state of being cleaned in advance. In the present embodiment, a spray liquid supply pipe and an air supply pipe (not shown) are connected to the operation nozzle 3 and the replacement nozzle 4 from the beginning.

  The rotary drum 1 has one end located on the inclined upper side along the axis, the other end located on the inclined lower side, and a peripheral wall that connects the one end and the other end. The peripheral wall portion is not provided with a ventilation portion (porous portion) for air supply and exhaust, and through the drum opening portion 1a provided at one end of the rotary drum 1 and the ventilation portion provided at the other end. , Supply and discharge of the rotary drum 1 are performed.

  On the front side of the casing 6, a casing opening 6a for communicating the inside and the outside of the casing 6 and a door 6b for opening and closing the casing opening 6a are provided.

  In the present embodiment, the nozzle replacing mechanism 5 mainly includes the longitudinal axis portion 5a, the cylinder portion 5b, and the pair of horizontal bar portions (first horizontal bar portion 5c, second horizontal bar portion 5d). .

  The vertical axis portion 5a extends in the vertical direction, and is slidably supported on the casing 6 via the bearing portion 5e. The lower end of the vertical axis portion 5a is fixed to the tip of the rod of the cylinder portion 5b. The cylinder portion 5 b is fixed to the casing 6. The longitudinal axis portion 5a can move up and down by the expansion and contraction of the cylinder portion 5b.

  The first horizontal bar portion 5c and the second horizontal bar portion 5d extend in the lateral direction, but have a plurality of bent portions and have a generally curved shape. The first horizontal bar portion 5c and the second horizontal bar portion 5d have substantially the same shape. The base ends of the first horizontal bar portion 5c and the second horizontal bar portion 5d are rotatably attached to the vertical axis portion 5a, and can be pivoted about the axis line A1 of the vertical axis portion 5a. ing.

  The support part 2 which supports the operation | use nozzle 3 is provided in the site | part of the tip end vicinity of the 1st horizontal bar part 5c. The second support 7 for supporting the replacement nozzle 4 is provided at a position near the tip of the second horizontal bar 5 d. That is, the nozzle replacement mechanism 5 has the support portion 2 configured to be pivotable, and the second support portion 7 capable of pivoting coaxially with the pivot axis (axis line A1) of the support portion 2.

  When replacing the working nozzle 3 with the replacement nozzle 4, first, as shown by a two-dot chain line in FIG. 2, the door 6b is opened. Next, the first horizontal bar portion 5c is turned to move the operation nozzle 3 from the operation position P1 to the outside of the rotary drum 1 by the rotation of the support portion 2. Then, the cylinder portion 5b is extended to raise the vertical axis portion 5a. Then, the second horizontal bar portion 5d is turned, and the turning of the second support portion 7 moves the replacement nozzle 4 from the outside of the rotary drum 1 to the operating position P1. Thereafter, the door 6b is closed. Then, the powder and granular material processing apparatus is in the state shown in FIG.

  In addition, by cleaning the operation nozzle 3 moved to the outside of the rotary drum 1, the operation nozzle 3 is used as the replacement nozzle 4 while being supported by the first horizontal bar portion 5c (support portion 2). It can be used again.

  In addition, the first horizontal bar can be used to close the door 6b with the operating nozzle 3 and the replacement nozzle 4 at the operating position P1 at the peripheral edge of the casing opening 6a of the casing 6, respectively. A recess 6c is provided to accommodate the portion 5c and the second horizontal bar 5d.

  The granular material processing apparatus of the present embodiment configured as described above can receive the following effects.

  In order to replace the working nozzle 3 with the replacement nozzle 4 during processing by the nozzle replacement mechanism 5, after replacing the working nozzle 3 with the replacement nozzle 4, the replacement nozzle 4 that has become the new working nozzle 3 is clogged There is no such thing. Therefore, if this nozzle replacement is performed regularly, it is possible to avoid the situation where the operation nozzle 3 is clogged during the granulation or coating process. That is, according to the granular material processing apparatus which concerns on this embodiment, the situation which the working nozzle 3 clogs up during processing can be avoided.

  Also, conventionally, even if the operation nozzle 3 is not clogged during processing, if the air cap or the like of the operation nozzle 3 gets dirty, the mist diameter becomes coarse, which may lead to the deterioration of the quality of the granular product. . In addition, when the operation nozzle 3 is clogged, leakage of the spray liquid from the operation nozzle 3 and fluctuation of the spray pattern occur, which may generate a defective powder and particle product. These problems can also be solved by replacing the working nozzle 3 with the replacement nozzle 4 periodically by the nozzle replacement mechanism 5 during processing.

  Next, a granular material processing apparatus according to a second embodiment of the present invention will be described. The configuration different from the first embodiment will be mainly described, and the description of the same configuration as the first embodiment will be omitted.

  In the present embodiment, at first, the spray liquid supply pipe and the air supply pipe (not shown) are connected to the working nozzle 3, but the spray liquid supply pipe and the air supply pipe (not shown) are connected to the replacement nozzle 4 Not connected. Moreover, the door 6 b is not provided in the casing 6.

  In the present embodiment, as shown in FIG. 4, the nozzle replacing mechanism 5 mainly includes the main cylinder 5f, the sub cylinder 5g, the supply / conveyance unit 5h, and the discharge / conveyance unit 5i.

  The main cylinder portion 5 f has a support portion 2 for gripping and supporting the operation nozzle 3 at the tip of its rod. That is, the nozzle replacement mechanism 5 has the support portion 2 configured to be linearly movable. When the working nozzle 3 is in the working position P1, the main cylinder 5f is in the extended state. The support portion 2 can be switched between a supported state in which the working nozzle 3 or the replacement nozzle 4 is gripped and supported, and a released state in which the working nozzle 3 or the replacement nozzle 4 is released, by the expansion and contraction of the small cylinder portion 5j. .

  The auxiliary cylinder portion 5g has a delivery portion 5k which holds and supports the operation nozzle 3 or the replacement nozzle 4 at the tip of its rod. That is, the nozzle replacement mechanism 5 has the delivery part 5k configured to be linearly movable. The delivery unit 5k can be switched between a supported state in which the working nozzle 3 or the replacement nozzle 4 is held and supported and a released state in which the working nozzle 3 or the replacement nozzle 4 is released by the expansion and contraction of the small cylinder portion 5l. . The delivery unit 5 k receives the working nozzle 3 from the support unit 2 at the delivery position P 2 outside the rotary drum 1 and delivers the replacement nozzle 4 to the support unit 2. Other than at the time of nozzle replacement, the sub cylinder portion 5g is in a contracted state so as not to interfere with the rod of the main cylinder portion 5f.

  The supply / conveyance unit 5h is for conveying (supplying) the replacement nozzle 4 to the standby position P3, and is configured of, for example, a belt conveyor or the like. The replacement nozzle 4 at the standby position P3 and the replacement nozzle 4 to be supplied to the standby position P3 are disposed on the supply conveyance unit 5h. The discharge transport unit 5i transports (discharges) the replaced working nozzle 3 from the release position P4, and is configured of, for example, a belt conveyor. Initially, nothing is disposed on the discharge conveyance unit 5i.

  When replacing the working nozzle 3 with the replacement nozzle 4, first, a spray liquid supply pipe and an air supply pipe (not shown) are connected to the replacement nozzle 4 at the standby position P3.

  Next, the main cylinder 5f is contracted to move the operating nozzle 3 from the operating position P1 to the delivery position P2 outside the rotary drum 1 by the linear movement of the support 2.

  Then, the sub cylinder portion 5g is extended, and the delivery portion 5k is moved to a position where the operation nozzle 3 at the delivery position P2 can be gripped.

  Then, the delivery unit 5k is switched to the support state, and the operation nozzle 3 is supported by the delivery unit 5k. Then, the support unit 2 is switched to the release state, and the operation nozzle 3 is released from the support unit 2.

  Thereafter, the sub cylinder portion 5g is contracted, and the operation nozzle 3 is moved from the delivery position P2 to the release position P4 by the linear movement of the delivery portion 5k. Then, the transfer unit 5k is switched to the release state, and the operation nozzle 3 is released onto the discharge conveyance unit 5i.

  Next, the sub cylinder portion 5g is extended to move the delivery portion 5k to a position where the replacement nozzle 4 at the standby position P3 can be gripped. Then, the delivery unit 5k is switched to the support state, and the delivery unit 5k supports the replacement nozzle 4.

  Then, the sub cylinder portion 5g is contracted, and the replacement nozzle 4 is moved from the standby position P3 to the delivery position P2 by the linear movement of the delivery portion 5k.

  Then, the support portion 2 is switched to the support state, and the support portion 2 supports the replacement nozzle 4. Then, the delivery unit 5k is switched to the release state, and the replacement nozzle 4 is released from the delivery unit 5k. Then, the sub cylinder portion 5g is contracted so that the transfer portion 5k does not interfere with the next operation of the support portion 2.

  Then, the main cylinder portion 5f is extended, and the linear movement of the support portion 2 moves the replacement nozzle 4 from the delivery position P2 to the operating position P1 inside the rotary drum 1.

  Thereafter, the spray liquid supply pipe and the air supply pipe (not shown) are removed from the operation nozzle 3 at the release position P4. Then, the operating nozzle 3 is transported from the release position P4 by the discharge transport unit 5i, and the replacement nozzle 4 is transported to the standby position P3 by the supply transport unit 5h to prepare for the next nozzle replacement.

  The operation of the main cylinder 5f, the sub-cylinder 5g, the support 2, and the delivery part 5k is controlled by a control means (not shown) to replace the working nozzle 3 with the replacement nozzle 4 by supplying the spray liquid. It is preferred that this be done automatically, except for the connection and removal of the tube and the air supply tube.

  Next, a granular material processing apparatus according to a third embodiment of the present invention will be described. The configuration different from the first embodiment will be mainly described, and the description of the same configuration as the first embodiment will be omitted.

  In the present embodiment, a spray liquid supply pipe and an air supply pipe (not shown) are connected to the operation nozzle 3 and the replacement nozzle 4 from the beginning.

  In the present embodiment, as shown in FIG. 5A, the nozzle replacing mechanism 5 mainly includes the rotating shaft 5m and a driving unit 5n that rotationally drives the rotating shaft 5m.

  The rotating shaft 5m extends in the lateral direction, and is rotatably supported relative to the door 6b of the casing 6 via the bearing 5o. The drive unit 5 n is fixed to the door 6 b of the casing 6. In addition, the door part 6b of this embodiment is a type which opens and closes the casing opening part 6a by sliding along the front-back direction of a granular material apparatus.

  The driven gear 5q engaged with the drive gear 5p of the drive unit 5n is fixed to the base end of the rotary shaft 5m. In the vicinity of the tip of the rotary shaft 5m, a support 2 for supporting the working nozzle 3 and the replacement nozzle 4 is provided. That is, the nozzle replacement mechanism 5 has the support portion 2 configured to be rotatable about the axis A2 of the rotation shaft portion 5m via the rotation shaft portion 5m.

  The replacement nozzle 4 is at a position different from the operating position P1 inside the rotary drum 1. In the present embodiment, as shown in FIG. 5B, when viewed along the axis A2 of the rotary shaft portion 5m. In addition, the replacement nozzle 4 is disposed so as to have a point-symmetrical shape with respect to the operation nozzle 3 with respect to the axis A2 of the rotation shaft portion 5m.

  When replacing the working nozzle 3 with the replacement nozzle 4, the drive gear 5p of the drive unit 5n is rotated, and the rotary shaft 5m is rotated 180 ° around the axis A2 via the driven gear 5q. Then, the rotation of the support portion 2 moves the operating nozzle 3 from the operating position P1 to the position where the replacement nozzle 4 was located, and moves the replacement nozzle 4 to the operating position P1.

  The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the technical idea thereof. For example, in the first embodiment, the second horizontal bar portion 5d supporting the replacement nozzle 4 is one, but may be a plurality. Further, in the third embodiment, the number of replacement nozzles 4 supported by the support portion 2 is one, but may be more than one.

  Moreover, in the said embodiment, although the axis line of the rotating drum 1 inclined with respect to the horizontal line, the axis line of the rotating drum 1 may be along the direction of a horizontal line. Further, in this case, the rotary drum 1 includes a plurality of processing chambers partitioned along the axial direction, and the powder particles are sequentially transferred from the processing chamber at one axial end to the processing chamber at the other axial end. It may be one that is transferred and subjected to treatment (a so-called continuous powder and particle processing apparatus).

DESCRIPTION OF SYMBOLS 1 rotating drum 2 support part 3 operation | use nozzle 4 nozzle for replacement | exchange 5 nozzle replacement mechanism 5k delivery part 7 2nd support part A1 axial line (swivel axis)
P1 working position

Claims (2)

The granular material is accommodated inside, and a rotary drum which is rotationally driven around its axis, and supported by the support portion at the operating position inside the rotary drum, toward the granular material layer composed of the granular material A powder and particle processing apparatus , comprising: a nozzle for spraying a spray liquid; and a casing for containing the rotating drum , wherein the powder and particles are coated.
The casing is provided with an opening for communicating the inside and the outside of the casing, and a door for opening and closing the opening.
The nozzle in the operating position is an operating nozzle,
The replacement nozzle to be replaced with the working nozzle; and a nozzle replacement mechanism for replacing the working nozzle with the replacement nozzle during the coating process ,
The nozzle replacement mechanism is provided on a rotary shaft portion rotatably supported with respect to the door portion, a drive portion for rotationally driving the rotary shaft portion, and the rotary shaft portion, via the rotary shaft portion. And the support portion configured to be rotatable.
The support portion supports the replacement nozzle at a position different from the operating position inside the rotating drum;
In the inside of the rotating drum, the operating nozzle moves from the operating position and the replacement nozzle moves to the operating position by the rotation of the support portion via the rotating shaft portion. Particle processing equipment. The rotating drum comprises a plurality of processing chambers partitioned along the direction of the axis,
Claim 1, wherein the powder or granular material, characterized in that the coating process from the processing chamber at one end of the direction of the axis sequentially been transferred into the processing chamber at the other side in the direction of the axis is carried out The granular material processing apparatus as described in.

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