JPS59127638A - Granulating and coating apparatus - Google Patents

Abstract

PURPOSE:To perform optimum granulation, coating and mixing, by providing a rotary plate which is rotated in an almost horizontal direction in the barrel part of a granulation cylinder and has a vent part at the part thereof and a control means for controlling the flow amount passing the aforementiond vent part. CONSTITUTION:A particulate material receives stirring, mixing and tumbling action by the composite rotary operation of a rotary disk 5 and a stirring blade 6 and the combination of two gas streams of the slit gas passing a slit 16 and the gas passing the vent part 18 of the rotary disk 5. In addition, said particlate material is flowed in a circulatory flow pattern while raised by the gas streams and fallen under its own wt. and a spiral tumbling layer is formed to the peripheral wall part of a granulation cylinder 1. Further, the particulate material is dispersed toward the center direction of the granulation cylinder 1 as shown by the broken arrow 51 by rotating the rotary disc 5 at a speed higher than the tumbling speed of the tumbling layer 50 and a better fractionating and mixing action can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a granulation coating apparatus, particularly a fluidized bed type granulation coating apparatus having a rotating plate, which has a simple structure and adjusts the amount of gas passing through a vent provided in the rotating plate. The present invention relates to a granulation coating device that can be used.

Generally used for example in medicine, food, seasoning, powder metallurgy materials,
Various types of mechanical equipment have traditionally been used for granulation, coating, mixing, drying, etc. of powder and granular materials used in F/C such as catalysts, ferrite, ceramics, detergents, cosmetics, dyes, pigments, and toners. .

As one such conventional device, Japanese Patent Application Laid-Open No. 54-629
No. 78, No. 56-133024 (specification of U.S. Pat. No. 4,323,312), and Japanese Patent Publication No. 55-4457, a rotating disk is provided in the granulation cylinder so as to be horizontally rotatable, and this rotating disk is A structure in which a slit is formed between the periphery of the plate and the wall surface of the granulation cylinder is disclosed. The gas blown out from this slit (hereinafter simply referred to as slit gas) creates a cyclical flow pattern that blows the powder up along the wall of the granulation tube and causes it to fall under its own weight to the center of the granulation tube. Combined with the centrifugal rolling action caused by the rotation of the rotary disk, it provides an extremely good granulation effect, especially.

It is known that by adjusting the spacing between the slits, the flow of the slit gas can be well controlled, and the particle size, bulk density, hardness, etc. of the granulated coating can be controlled to the desired size. It is being

By the way, in the prior art, the interval between the slits is variable v
It is considered that the rotating disk is moved up and down together with its drive shaft and/or drive source in order to achieve rt=. However, it is difficult to move the rotating parts such as the drive shaft and drive source of such a rotating disk up and down.
This requires an extremely complicated lifting device, is difficult to lift and lower, and has problems such as extremely high production costs.

Therefore, the Ministry of the Invention and others previously proposed a granulation coaching device with a structure in which the gap between the slits between the wall surface of the granulation cylinder and the periphery of the rotary plate is adjusted by an annular slit adjustment means. (%GanSho 5'7-2Q4836).

This device has the excellent advantage that the LIj distance of the slits can be easily and easily adjusted to an optimal value by moving only the non-rotating part without moving the rotating part, and at a very low cost. In this device, ventilation holes are provided in the rotating plate so that the flow rates of the slit gas from the slits and the gas from the ventilation holes in the rotating plate can be adjusted using a damper, but in that case, the gas supply system There is a tendency for the structure to become somewhat more complex and costs to rise.

- A structure in which ventilation holes are provided in the non-rotating fluidized bed plate and the ventilation holes can be opened and closed is also considered, but since there is no rotating plate in this structure, centrifugal rotation operation by rotating the rotating plate cannot be obtained. First, there is a problem that spherical particles with high commercial value cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art and to provide a granulation coating device with a simple structure and low cost.

In order to achieve this object, the granulation coating apparatus according to the present invention is characterized in that it has a gas amount adjusting means for adjusting the gas flow rate through the ventilation section formed in the rotary plate.

Hereinafter, the present invention will be described as an example showing the present invention in sections.
I congratulate you in detail.

FIG. 1 is a schematic diagram showing an embodiment of the grain coating system according to the invention, and FIG. 2 is an enlarged partial sectional view of the scattered part.
The 30th is an enlarged partial cross-sectional view showing the state where the air vent is open.

The coating apparatus in this embodiment has a substantially cylindrical granulation cylinder 1, which is installed in a vertical manner and performs granulation and coating of powder and granules charged therein.

A raw material inlet 2 is provided diagonally upward on the side surface of the granulation tube 1, which is approximately at the middle of the cylinder. A discharge chute 3 for taking out and a discharge valve 4 for opening and closing the discharge port are provided.

Granulation cylinder 1 at approximately the same level as the discharge chute 3
A rotary disk 5 is provided at the bottom of the granulation WJ 1 for granulation coating by rotating approximately horizontally within the granulation WJ1. A stirring blade 6 for stirring the powder material in the grain coating is provided so as to be able to rotate approximately horizontally.

The rotating disk 5 rotates a hollow rotating shaft 7, which is provided in a substantially vertical V shape approximately at the center of the body of the granulating cylinder 1, in a desired direction from a variable speed motor 8 through a belt 9 and a second IJ 9a. It is rotated by rotational driving.

On the other hand, the stirring blade 6 has a bearing l inside the hollow rotating shaft 7.
The rotating shaft 11 coaxially inserted through the motor 8
A variable speed motor 12 separate from the belt 13. By rotationally driving through the glue 13a, it is rotated in a rotational direction and rotational speed independent of the rotating disk 5.

The rotating disk 5 and the stirring blade 6 of this embodiment are configured such that their positions in the vertical direction are fixed and cannot be moved up or down.

In addition, in order to form a gap for slit gas supply, that is, a slit 16 between the rotating disk 5 and the slit forming surface around the rotating disk 5, the granulating cylinder 1 is located at a position slightly below the periphery of the rotating disk 5. An annular slit-forming ring 17 is disposed on the inner wall surface of the body portion as an annular projection-shaped slit forming means. As is clear from FIGS. 2 and 3, this slit-forming ring 17 has a slit-forming surface 17a that is inclined upward toward the center of the body. This slit forming surface 17a is inclined in the same direction so as to be almost parallel to the slit forming surface 5a which is inclined diagonally downward toward the body part middle 1Qs on the lower side of the outer peripheral edge of the rotating disk 5, and both slit forming surfaces 5a! 17a, a slit 16 is formed upward toward the outside of the body.

The slit forming ring 17 of this embodiment can be formed by changing its position in the vertical direction with respect to the rotating disk 5.
It is possible to variably adjust the interval between, for example, within the O-mathematical category. That is, in this embodiment, the slit forming ring 17 itself can be moved up and down by the slit adjusting mechanism 50, and this slit adjusting mechanism 6υ adjusts the wall surface of the body of the granulating cylinder 1 at the mounting position of the slit forming ring 17. A long hole-shaped slot 61 (FIG. 4) is formed diagonally in the slit 61, and a slot 61 is provided in the radial direction through the slot 61, and the inner end is screwed into the slit-forming ring 17 for attachment. and a slide shaft 62 that can slide along the length of the slot 61 within the slot 61 by a range of stroke -81 from the two-dot chain line position to the one-dot chain position through the solid line position as shown in FIG. , can be screwed onto the outer end of this slide shaft 62, and the slide shaft 62 can be screwed into the slot 6.
It consists of a fixing means, ie, a fixing nut 63a, which can come into contact with the outer wall surface of the granulating cylinder 1 at its inner end when screwed together so as to fix it at a desired position in the length direction of the granulating cylinder 1.

The slot 61 in this embodiment is the granulation tube 1 when viewed from a plan view.
Since the slit is formed diagonally upward with respect to the anti-time pulling direction, that is, in an upwardly rightward inclined state as shown in FIG. The ring 17 is in the lowest position, the slits 16 are at maximum spacing, while the slide shaft 02 is at (
In FIG. 4, when the slit forming ring 17 is at the single point position indicated by 62b, the slit forming ring 17 is in the uppermost position, and the slit 1
The interval 6 is the minimum (zero in this example), and the flow of the slit gas is the minimum (in this example, the stopped state).

By performing VC in this way and observing the change in the interval between the slits 160, the flow rate of the heating or cooling air can be determined based on the slit gas that leaks through the slits 16 and is blown into the granulation cylinder l from below. In addition, it is possible to always control the amount of R to be appropriate depending on the process of coating and the like.

Note that numerals 64 and 65 in FIG. 2 and the like prevent outside air from entering the granulating cylinder 1 from the slot 61 by passing between the inner wall surface of the granulating cylinder l and the outer circumferential direction of the slit forming ring 17. It is a seal ring for

Further, as illustrated in FIG. 6, the rotary disk 5 of this embodiment has a passage A section 18 in which a net 18a is provided in the circumferential direction at the intermediate position in the radial direction as well. ing. In line with this, the air section 18 can be provided with a sintered plate or a perforated plate having holes large enough to prevent rice grains from leaking outside the mesh plate.
The position of the ventilation portion 18 is preferably outside the intermediate position in the radial direction of the rotary disk 50 in order to sufficiently perform centrifugal rotation vJJJ of the powder on the rotary disk 5.

Further, the ventilation portion 18 must be provided in the circumferential direction 91;
It is also possible to provide a notch in a part of the radial direction without the need for a cutout.

The purpose of this ventilation section 18 is to pass through the slit 16 to form particles i! j) The powder in the granulation cylinder 1 is blown into the granulation cylinder 1 by blowing gas, for example heated air or cooling air, from below through this vent 18 independently of the slit gas supplied into the granulation cylinder 1. It gives the granules a flow pattern different from the flow pattern caused by the slit gas, and also allows the granulation m to pass through the hollow part 18 during drying after granulation coating.
The object of the present invention is to significantly shorten the drying time by supplying a large amount of drying gas into the interior of the drying chamber, and to efficiently produce better quality molding or coating products.

Therefore, a gas flow rate adjustment mechanism 66 is provided below the ventilation section 18 to adjust the gas flow rate to the ventilation section 18 . This gas flow rate adjustment mechanism b6 includes an annular opening/closing 1 nong 67 that moves vertically to open and close the gas inlet of the 1 ventilation section 18 and comes into contact with and separates from the gas inlet, and this opening/closing cylinder 6.
7, there is a non-rotating support ring 70 which is provided so as to be able to rotate relative to each other via rotary bearings [j8jj9; A slide shaft 72 that protrudes outside the granulation cylinder 1 and is removably fixed with a fixing nut 71.
It consists of a mass-proportional structure that supports The opening/closing ring 67 is made of, for example, fluororesin, and rotates together with the rotary disk 5 when one ventilation section is closed.

As shown in FIG. 5, this slide shaft 72 is inserted into a slot 73 provided in the wall of the granulating cylinder like the slide shaft 62, and strokes S along the direction of the slot 73.
It can slide within a range of 2. That is, the slot 73 through which the slide shaft 72 is inserted is formed in an upwardly slanted state relative to the counterclockwise direction of the structure 8 restraint 1 when viewed from a plan view as shown in FIG. , slide shaft 7
When 2 falls to the two-point @ line position shown by 72 & in Figure 5,
The gas flow rate adjustment mechanism 66 is at the lowest position VC shown in FIG.
2 comes to the single point @ line position shown by 72 b in FIG. The gas flow rate passing through is at a minimum (in this embodiment, it is in a stopped state).

In this embodiment, gas to the slit 16 and the ventilation section 18 is connected and supplied to the common air supply passage 74 from a common air supply source (not shown), so there is only one air supply system. It can be configured with a simple structure and is low in cost, and the gas to the slit 16 and the ventilation section 18 can be controlled independently by the slit adjustment mechanism 60 and the gas flow rate adjustment mechanism 66, respectively.

Therefore, in this embodiment, by adjusting the gas flow through the slit 16 and the vent 18, various flow patterns can be obtained with these two gas flows.

On the other hand, the stirring blade 6 in this embodiment has three curved claw-shaped stirring blades 36 disposed on the side surface of a boss 35 at intervals of approximately 120 degrees, as illustrated in Figure 5, and is used for mixing and granulation. It is designed to increase the effect. Further, this stirring blade 6 is connected to the rotating shaft 1 as shown by the broken line in FIG.
The purge gas supplied through the killing air passage 37 formed in the boss 35 is ejected from the lower surface side of the boss 35.
There is a gap V of +1=tj between the rotary shaft 11 and the rotating shaft 11 (VC is provided to prevent powder and granules from getting caught).

On the other hand, in this embodiment, a crushing mechanism 38 is disposed in a substantially horizontal direction from the side of the granulation cylinder l above the periphery of the stirring blade 6.

As shown in FIG. 6, this crushing mechanism 38 has a plurality of roughly triangular crushing blades 41f protruding in the radial direction around a crushing shaft 40 rotated by an electric or pneumatic motor 39P. Consists of structure. The crushing blade 41 performs a spiral rolling movement along the peripheral wall of the granulation node 1 due to the rotation of the rotating disk 5 and the stirring blade 6 in the powder layer.
For example, MiJ recording plate rotating disk 5 stirring blade 1 blade 6
rotates faster than the rotation speed of Accordingly, the powder layer is transferred by the rotating disk 5 for granulation and coating liquid, stirring and mixing by the stirring blade 6, crosstalk action ivC, and in addition, crushing, granulation, mixing and dispersion by the rotational shearing force of the crushing blade 41. Due to the additive effect of these effects, it is possible to produce spherical granulated coating products with high productivity.

In particular, the crushing blades 41 can perform granulation coating without subdividing the nodules that are unnecessarily generated in the powder bag into particles of the desired size by their shearing force. Granules with bulk density can be obtained.

In addition, as shown in FIGS. 1 to 3, a liquid is pumped from a liquid tank (not shown) to the side wall of the granulating cylinder 1 of this embodiment near the bottom and slightly above the stirring blades 6. A two-fluid nozzle spray gun 45° and 46 for spraying the binder liquid is also provided.

On the other hand, although not shown, the wall portion of the granulation tube l located at approximately the same height V as the soufflé gun 45 is located in the middle of the powder layer in the rice mortaring tube 1 (for supplying the powder raw material). A nozzle is provided.

An exhaust duct 48 for discharging exhaust from the powder layer to the outside of the system is connected to the side surface of the granulation section 1, and a pulse gelato nostle 75a for cleaning is connected to the upper part of the cylinder.
and a bag filter 75b. Furthermore, on the top wall of the #l cylinder 1, there is a hinge-type lid 49 for Q-dispersion.
is attached to the opening/closing oJ' function.

In addition, in the upper part of the granulation cylinder 1, a dust collection structure such as Zyclone may be provided instead of the bag filter, but in this embodiment, the crushing mechanism 38 is provided. ,]
Takashi'9. The granulation and coating operation can be carried out by putting the granular raw material into the cylinder 1 and supplying a large amount of binder and coating liquid until all the fine particles are removed, so there is no need to necessarily provide a dust collection mechanism. There is.

Note that No. 79 76.71; l: For example, Oiles bearing.

First, Honji M! The effect of example i will be explained.

1. The slit forming surface 5a of the peripheral edge of the rotating disk 5 provided at the j-pressure part Q in the granulating cylinder 1 and the slit forming surface of the slit forming ring 17 provided on the inner wall surface of the body of the granulating cylinder 1. 17
The fixing nut 63 of the slit adjustment mechanism 60 is used to set the interval between the slits 160 formed between the
When the slide shaft 62 is slid clockwise or counterclockwise along the length of the slot 61 to a predetermined position by loosening &, the slit forming ring 17 is attached to the inner wall surface of the granulating cylinder 1 together with the slide shaft 62. The distance between the slits 16 changes as the slits 16 slide along the slits. Therefore, when the fixing nut 63a is turned in the threading direction on the slide shaft 62 when the spacing between the slits 16 reaches a desired size, the fixing nut 63a
The slit forming ring 17 is fixed at a predetermined height position, and the slit forming ring 17 is in contact with the outer peripheral surface of the granulating cylinder 1 on the inner end surface of the a.
Slit gas can be ejected into the granulation cylinder 1 from the slit gas.

After setting the interval between the sulins h 16 to a predetermined size in this way, the rotary shaft 7 is rotated by the motor 8vC via the belt 9. Rotate at desired speed.

In that case, at the start of the granulation operation, if necessary, the opening/closing ring 67 of the gas flow rate adjustment mechanism 66 may be brought into close contact with the lower surface of the rotary disk 5 under the ventilation section 18 or brought very close to it. , the ventilation section 18 is completely closed or only slightly ventilated, and the slit gas is supplied into the granulation tube 1 mainly through the slit knot 16.

Thereafter, the stirring blade 6 is rotated at a desired speed in the same or opposite direction to the rotating inner plate 5 via the belt 13 and (b) rotating shaft 11 in the morph 12, and then granulated from the raw material input port 275). While supplying a predetermined amount of granular raw material into the cylinder 1 and stirring it,
One or both of the souffle guns 45 and 46 spray a binder liquid or a co-binder liquid, which is pumped from a liquid tank (not shown) with a bomb (not shown), into or onto the powder layer.

After the granulation coating operation is started in this way, if necessary, the slide shaft 72 of the gas flow rate adjustment mechanism 66 can be slid along the slot 73 by a desired amount in the direction of the lower left blade in FIG. Okay, when the opening/closing ring b7 is moved downward and released from the lower surface of the rotating disk 5, the ventilation portion 1 is inserted between the upper iJ of the opening/closing ring 67 and the downward side of the rotating disk 5.
A desired amount of gas is passed through the tube 8. Opening/closing ring 67
is from rotating disk 5 to li? When it is rotated, it stops rotating together with the rotating disk 5.

Of course, if necessary, granulation coating, mixing, etc. can be performed with the slits 16 made smaller so that the flow of the slit gas is reduced or completely stopped.

In addition, if necessary, powder or granule raw materials may be added to Nomel (not shown)
It is possible to supply only the required amount into the powder layer.

Exhaust from the powder layer in the granulation cylinder 1 is extracted to the outside of the yarn through an exhaust tact 48.

In that case, in the granulation coating apparatus of this embodiment, the combined rotational operation of the rotating disk 5 and the stirring blade 6 and the two gases, slit gas passing through the slit [6] and gas passing through the ventilation section 18 of the rotating disk 5, are carried out. Due to the combination of flows, the powder material is subjected to agitation mixing and rolling action, and flows in a circular flow pattern in which it rises with the gas flow and falls under its own weight, as shown in FIGS. 9 and 10. Not only is a transfer layer 50 that performs a spiral transfer movement, that is, a granular material layer 50 formed on the peripheral wall of the granulating cylinder 1, but also the crushing blades 41 of the crushing mechanism 38 are used to transfer all the granular material into the granular material 50. The rolling direction of the powder and granular material in the powder and granular material layer 50 (
If the rotational speed of the rotating disk 5 is in the same direction (direction of rotational force of the rotating disk 5), the rotation speed of the rotating disk 5 is higher than the transfer speed of the powder layer 50. a'#1 of layer 50;
The powder is divided into pieces by rotational shearing force and granulated, and the powder is placed in the granulation tube 1 as shown by the breaking arrow 51 in FIGS. 9 and 10. It is possible to disperse the particles by rotating them in the direction of the arrow, thereby obtaining a better subdivision and mixing effect.

After finishing the granulation coating in this way, the slide size It 72 of the gas a charm adjustment 4 death b6 is 72 in FIG.
Slide the opening/closing ring 72 to the lowermost position by sliding it to the position shown in a to maximize the gas flow rate through the ventilation section 18. By stirring, transferring, mixing, dispersing, etc., the coating material can be dried extremely efficiently in a short period of time.

n'' and a good quality granulated coating product can be obtained.

Therefore, according to this embodiment, in addition to the combined rotational movement of the rotating disk 5 and the stirring blade 6 and the combination of two gas flows, slit gas passing through the slit 16 and gas passing through the ventilation section 18, the crushing mechanism Segmentation and mixing of 38 crushing blades 41,
Through the effects of dispersion, particle size regulation, etc., a granulated coating with good sphericity and uniform particle size can be obtained with extremely high productivity.

In particular, in this embodiment, the gas flow rate passing through the rotating disk 50 ventilation section (8) can be variably adjusted independently of the slit gas by approaching and separating the opening/closing ring 67 of the gas flow rate adjustment mechanism 66, which has an extremely simple structure. , has a simple structure and low cost, and allows for more accurate control than dampers etc. Moreover, since only one supply air passage 74 is provided, which is the same as that for the slit gas, for example, two systems can be used. Compared to the case where an air supply passage is provided, the structure is extremely simple and the cost is also extremely low. Furthermore, in this embodiment, when used for medical products, foods, etc., cleaning of the device is extremely easy.

Are you going to do this to your daughters? In 11VC, as described above, the vertical position of the slit forming ring 17 can be freely adjusted to control the interval between the slits 16 to a desired size, so that the granulation tube 1 can be filled through the slits 16. The flow rate of the slit gas blown into the slit gas can be adjusted and controlled to the optimum amount depending on the various processes such as granulation, coating, mixing, drying, etc., and the various stages in each process. I can do some work.

Moreover, in the case of this embodiment, in order to adjust the spacing between the slits 16, the slit forming ring 17, which is a non-rotating part, is moved up and down instead of the rotating disk 5, which is conventional in that the rotating part is moved up and down. Compared to the above mechanism, the structure of the slit adjustment mechanism 60 is extremely simple, the manufacturing cost is extremely low, and the operation thereof is extremely simple and easy.

In addition, in this embodiment, by providing the crushing mechanism 38, the binder is added to the powder raw material charged into the granulation cylinder 1 without spraying the souffle when coating one grain by force. Granulation coating can be performed by mixing and mixing by rotating the rotating disk 5, the stirring blade 6, and the crushing blade 41 while the liquid or the coating slurry is supplied all at once. As a result, the speed of granulation and coating becomes faster, and the scattering of fine powder within the granulation cylinder 1 can be suppressed (q+i1), making it possible to obtain a product with an average percentage of f without segregation of ingredients.

Therefore, it is necessary to prevent scattering of the image removing powder.

It is also possible to omit the bag filter 75b in the two cylinders 1, and if a product record is required, a simple cyclone (not shown) can be used instead. By being able to employ a method in which the powder and granules collected by the cyclone are fried and recycled, an economically inexpensive and efficient granulation coating device can be obtained.

For example, in the case of ceramics, powder metallurgy materials, ferrite, and other powders and granules with a specific gravity as large as granules, once the flow state was unavoidably stopped, it was impossible to restart it, but this example Now, the stirring blade 6 and the crushing blade 4
1 together with the rotating F plate 5, restarting can be easily performed even in such a case.

In addition, in this embodiment, by providing the crushing rock 58, the product can be made into fine particles, and by changing the rotation speed of the crushing blade 41, the ME can be easily controlled by changing the rotation speed of the crushing blade 41. be able to. That is, by decreasing the rotation speed of the crushing blades 41, it is possible to obtain a product 2 with a relatively large particle size, and by increasing the rotation speed, fine particles can be produced.

The product after granulation and coating can be quickly discharged from the discharge chute 3 due to the mutual effect VC caused by the rotation of the rotating disk 5 and the stirring blade.

FIG. 11 is an enlarged view showing another embodiment of the granulation coaching device 1 according to the present invention.

In this embodiment, gas flow holes 18b and i8c each made of a perforated plate are provided at two locations in the circular force direction of the one-rotation disk 5, and the gas flow rate passing through the valley air flow holes 18b and 18c is determined by the respective gas flow rates. The slit BhH adjustment mechanism 60 is not provided, and the ventilation portion L8c and its gas flow rate adjustment mechanism are arranged closer to the outer circumference of the rotary H plate 5. 66 c iL
The slit and the slit Th' in Example VC described in mlI, respectively. i! The role of the mechanism is similar to that of rice.

Therefore, also in the case of this embodiment, each ventilation section 18b, 1
By independently and optimally controlling the amount of gas #L passing through 8c, it is possible to perform good granulation, coating, mixing, drying, etc., and also has advantages such as a simple structure and low cost. It will be done.

FIG. 12 is a partial semi-solid view showing another embodiment of the granulation coating apparatus according to the present invention.

In this embodiment, a slit forming surface 17 forming the slit 16 at IHI with the slit forming surface 5a of the rotating disk 5b.
A slit forming ring 17, a fixing handle 63, and a slit adjustment mechanism 60 are provided, and a slit is provided around the rotating shaft 7a on the lower side of the rotating disk 5b, which has a ventilation section 18d made of a perforated plate. 16 and ventilation 1
In particular, by opening and closing the air supply passage 74 leading to the isci,
A throttle mechanism 80 for controlling the flow rate of gas passing through d is provided as a gas flow rate adjustment mechanism.

This diaphragm mechanism 80 has a diaphragm structure such as a flow control valve or a diaphragm mechanism of a photographic camera, and uses a worm and a rack, for example, to move the diaphragm plate 81 from the outside to the center from the diaphragm line state 1 to the two-dot chain line state 1. By horizontal movement, the air supply passage 74 is opened and closed, and the ventilation section 18 is opened and closed.
The gas flow rate passing through d can be adjusted to L=J, and a good granulation coating effect can be obtained. In this case, the slit gas flow rate is adjusted by controlling the interval between the main V slits 16 using a slit adjustment mechanism 60.

In the embodiment shown in FIG. 12, it is also possible to omit the slit forming ring 17, the slittle 61, and the adjustment mechanism 60.

FIG. 13 is a partial half-to-plane view of another example 1 of the granulated Corning shell according to the invention.

In the non-embodiment, the rotary disk 5 having the ventilation portion 18e is 1
For historical purposes, the outer periphery of this rotating disk 5 is the wall lf of the granulating cylinder 1.
I] extends into the groove in the homologous direction formed by K.

A seal 82 is provided between the rotating disk 5 and the inner surface of the granulation cylinder 1.
is provided, and nitrogen is supplied from the air seal hole 83 to prevent white talk of the powder body.

Furthermore, even in the case of a false shaft example, a throttle mechanism 80 is provided on the wall side of the granulating cylinder 1, and the diaphragm plate 81 is horizontally moved from the outside to the center of the granulating cylinder 1, thereby increasing the feed rate. By opening and closing the air passage 74, the gas flow rate passing through the ventilation section 18e can be variably adjusted.

FIG. 14 is an explanatory diagram showing another embodiment of the slot that can be used in the present invention.

In the case of this embodiment, the slot 73a is formed in an oblique manner, contrary to the previous embodiment, and when the slide shaft 72 moves from the solid line position to the position 72a, the □ventilation part is opened. 4 gas flow rate increases, and when moving to the -/2b position, the gas flow rate decreases.

FIG. 15 is an explanatory diagram showing another embodiment of the slot edge that can be used in the present invention.

The slot 73b in this embodiment has a vertical slot structure extending straight in the height direction. Therefore, when the slide shaft 72 is moved to the upper dot-dashed line position indicated by 72 b, the gas flow rate through the ventilation portion decreases, and when it is moved to the lower two-dot line position indicated by 72 a, the gas flow rate increases. do.

Note that the present invention is not limited to the above-mentioned embodiments, and various other modifications are possible. For example, if a gas flow rate adjustment mechanism, a slit forming ring, a slit adjustment machine V, etc. other than those of the above embodiments are counterfeited, it is easy to operate them mechanically instead of manually. Further, instead of the rotating disk, a substantially disk-shaped rotating plate such as a polygonal plate may be used.

Furthermore, the present invention can be used for mixing, drying, etc. in addition to granulation and coating.

As explained above, according to the present invention, there is no need to worry about moving the rotating part, the structure is extremely simple, the cost is low, and the gas flow rate can be adjusted independently and accurately, resulting in optimal granulation. , coating, mixing, drying, etc.

Additionally, when used for pharmaceuticals, foods, etc., the device has the advantage of being extremely easy to clean.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic plan view showing an embodiment of the granulation coating device according to the present invention, Fig. 2 is an enlarged partial cross-sectional view of the main parts thereof, and Fig. 3 is an enlarged partial cross-sectional view of the granulation coating device in an open state. figure,
FIG. 4 is an explanatory diagram of one embodiment of the slot of the slit adjustment mechanism, FIG. 5 is an explanatory diagram of one embodiment of the slot of the gas flow rate adjustment mechanism, and FIG. 6 is a perspective view of one embodiment of the rotating disk v1j. FIG. 7 is a perspective view of one embodiment of the stirring member, FIG. 8 is a perspective view of one embodiment of the crushing mechanism, and FIGS.
A partial vertical cross-sectional view and a partial horizontal cross-sectional view showing the granulation coating action according to the embodiment shown in FIGS. FIG. 12 is a partial half-sectional view of another embodiment of the present invention, FIG. 13 is a half-sectional view of another embodiment of the present invention, and FIG.
The figure is an explanatory diagram of another embodiment of the slot of the gas flow rate adjustment mechanism, and FIG. 15 is an explanatory diagram showing another embodiment of the slot. 1... Granulation cylinder, 2... Raw material input port, 3
...Discharge chute, 5, 5b...Rotating disk, 5a...Slit forming surface, 6...
- Stirring blade, 7, 7a...Rotating shaft, 8...
...Motor, 11...Rotating shaft, 12...
・Motor, 16...Slit, 17, 17
b, l'7 c...Slit forming ring,
17 a...Slit forming surface, 18.18 b
. 18c, 18d, 18e... Ventilation section,
38...Crushing mechanism. 45... Soufflé gun, 48... Exhaust duct, 6 (J... Powder layer, Oυ...
・Slit adjustment mechanism, 61...Slot, 6
2... Slide shaft, b; Co... Fixing nut, 6tj, 66b, 66c... Waste flow rate B8
￥ Machine disease, 67...Opening/closing ring, 71...
-Fixing nut, 72.72a, 72b...Slide shaft, 73. 3a, 73b... Slot, 74... Air supply passage, 8o... Throttle mechanism (gas flow rate adjustment mechanism), 81... Throttle-like. Applicant: Freund Sangyo Co., Ltd. Agent Patent attorney: Dai Tsutsui Wa 421? ♂31El! Yu 4M) 6 Fuh I$5H/ 5b 躬6N ♂7Ejl い g17 Yudeld ノβ1θLd - Door 111Ej) ♂12Uυ, Mejriki MjZlj Fui Hei 1! ; 〃σ Procedure, written amendment (voluntary) Display of January 27, 1988 Patent Application No. 234392 Name of Granulation Coaching Apparatus 3, Person making the amendment Relationship with the case Patent applicant address 2-14-2 Takadanobaba, Shinjuku-ku, Tokyo Freund Sangyo Co., Ltd. Name Representative: Hatayo Fushishima 4, Agent 160 Address: Shinjuku Tax Accountant Building Annex 313, 7-18-18 Nishi-Shinjuku, Shinjuku-ku, Tokyo Tsutsui Kokusai Inside the patent office (!i!!36B-0787) King's object drawing

Claims (8)

[Claims] (1) In equipment used for granulating, coating, mixing, drying, etc. of powder and granules, there is a rotating plate that rotates approximately horizontally within the body of the granulating cylinder and whose position in the vertical direction is constant; a ventilation section formed at least at -m of the rotary plate;
A granulation coating device comprising: gas flow rate adjusting means for directly adjusting the gas flow rate passing through the ventilation section. (2) The granulation coating apparatus according to claim 1, wherein the gas flow rate adjusting means comprises an opening/closing lid mechanism that moves into and out of contact with the ventilation section. (3) The granulation coating apparatus according to claim 1, wherein the gas flow rate adjusting means comprises a throttle mechanism that opens and closes in a horizontal direction. (4) In equipment used for granulation, coating, mixing, drying, etc. of powder and granules, the rotation is approximately horizontal within the body of the granulation cylinder, and is constant in the direction of the bottom. a plate, a vent formed in at least a portion of the rotary plate, a gas flow rate adjusting means for directly adjusting the gas flow rate passing through the vent, a body of the granulation tube and a periphery of the rotary plate; A granulation coating device comprising: slit adjustment means for adjusting the spacing between the slits. (5) In a device used for granulation, coating, mixing, drying, etc. of powder and granules, there is a one-rotation plate that rotates approximately horizontally within the body of the granulation cylinder and whose position in the vertical direction is constant; A ventilation section formed in at least a portion of a rotary plate, a gas flow rate adjusting means for directly adjusting the gas flow rate passing through the ventilation section, and a stirring member that rotates in a substantially horizontal direction independently of the rotary plate. A granulation coating device that is characterized by (6) In an apparatus used for granulation, coating, mixing, drying, etc. of powder and granules, there is a rotating plate that rotates approximately horizontally within the body of the granulating cylinder and whose position in the vertical direction is constant; The rotating plate includes a ventilation section formed in at least a portion of the plate, a gas flow rate adjusting means for directly adjusting the gas flow rate passing through the ventilation section, and a crushing means located above the rotary plate. Characteristic granulation coating equipment. (7) In an apparatus used for granulation, coating, mixing, drying, etc. of powder and granules, there is a rotating plate that rotates approximately horizontally within the body of the granulating cylinder and whose position in the vertical direction is constant; A ventilation section formed in at least a portion of the plate, a gas flow rate adjustment means for directly regulating the flow rate of waste passing through the ventilation section, and a region between the body of the granulation cylinder and the periphery of the rotary plate. 1. A granulation coating device comprising: a slit adjustment means for adjusting the spacing between the slits; and a stirring member that rotates in a substantially horizontal direction independently of the rotary plate. (8) In a device used for granulating, coating, mixing, drying, etc. of powder or granules, a substantially horizontal V
a rotary plate that rotates and has a constant position in the vertical direction; a ventilation portion formed in at least a portion of the rotary plate; a gas flow rate adjusting means that directly adjusts the gas flow rate that follows the ventilation portion; a slit adjustment means for adjusting the interval between the slits between the body of the granulation cylinder and the periphery of the rotary plate; a stirring member that rotates in a substantially horizontal direction independently of the rotary plate;
A granulation coating device comprising a crushing means located above the rotary plate.