JP3185116B2 - Agitation mixing granulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Object of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirring / mixing granulating apparatus for instantly stirring, mixing and granulating powder and a binder liquid supplied to a granulating tank by a granulating disk rotating at a high speed. In particular, the present invention relates to an improvement in the arrangement of a rotary drive mechanism for rotating a granulating disk.

[0002]

BACKGROUND OF THE INVENTION Various devices for granulating powder have been put into practical use. Among them, a small device can process a large amount of powder.
An agitation-mixing granulator 1 'exists as a device capable of granulating with a small amount of humidification. As shown in FIG. 6, a high-speed rotating granulation disk 11 ′ faces a granulation tank 30 ′ and a powder A ₀ and a binder liquid L are dropped on the granulation disk 11 ′. By doing so, the powder A ₀ and the binder liquid L
And the mixture is stirred and mixed with the inner peripheral wall surface 30 of the granulation tank 30 '.
At this time, it agitates by the blade 11b 'provided on the granulation disk 11', is granulated, and is taken out from the take-out chute 34 '.

[0005] Such agitation and mixing granulator 1 inner circumferential wall surface 30 of 'The problem in is added binder liquid L, the powder A ₀ became pasty granulation tank 30'
The sediment A ₁ sticks to a ′ or the like, and this becomes an obstacle, so that granulation cannot be performed to a predetermined particle diameter or rotation of the granulation disk 11 ′ is hindered.

Accordingly, the present applicant has already filed Japanese Patent Application No. Hei.
No. 62, entitled "Method and Apparatus for Stir-Mix Granulation". This is placed in the granulation tank 30 '.
Sleeve 32 'substantially forming the inner peripheral wall surface 30a'
The gap between the blade 11b 'and the sleeve 32' is appropriately changed by decentering the sleeve 32 'by the pressing of the shifter 33a', whereby the sleeve 32 'adheres to the inner peripheral wall surface 30a' of the sleeve 32 '. deposits a ₁ removed, is intended to prevent the growth of deposits a _1.

However, in the case of this application, the granulating disk 1
Since the rotary drive mechanism 12 'for rotating the granulation disk 11' is disposed below 1 ', the installation direction of the take-out chute 34' on the mechanism is set to avoid interference with the rotary drive mechanism 12 '. , Are set obliquely downward. Thus, the granules granulated by the action of the granulation disk 11 ′
Once dropped onto the inner wall of the take-out chute 34 'and taken out, the inside of the take-out chute 34' or the granulation tank 3
It is also possible that the connecting portion between the 'pickup chute 34 at' 0 granulated granules A as shown in FIG. 6 and adheres to a deposit A _1, room for improvement has been left.

Further, the deposit A ₁ attached to such a place
When removing the granules, once the granulation disk 1
Even if the granulation disk 11 'has a structure in which it is necessary to remove the 1' and the granulating disk 11 'can be easily attached and detached, the time loss associated therewith will not be eliminated as long as such a step exists. Thus if deleting the process, and not be more easy removal of adhered deposits A _1, has room for improvements in this regard were left.

[0007]

[Technical matters to be developed] The present invention has been made in view of such a background, and the granulation of granulated granules by changing the arrangement of a rotation drive mechanism for rotating and driving a granulation disk is performed. This is an attempt to develop a new agitated mixing granulator that prevents adhesion to the tank and facilitates maintenance.

[0008]

Configuration of the Invention

Means for Achieving the Object The first aspect of the present invention relates to a stirring / mixing granulation apparatus in which a high-speed rotating granulation disk is faced in a granulation tank. In the apparatus for stirring, mixing and granulating the powder and the binder liquid supplied to the granulation tank, the granulation tank is provided at the upper part of the granulation casing.
The opening can be freely opened and closed, and the granulating casing
Rocking that can be displaced eccentrically with respect to the inner wall of the
Comprising a moving sleeve, and wherein said granulating disc is
Rotation drive of the processing head located above the granulation tank
Which is rotationally driven by a mechanism.
The processing head closes the upper opening of the granulation casing
With a flange that is positioned above the processing head.
The granulating disk is moved from inside the granulating casing
It is characterized by being configured to exit .

Further, in addition to the above-mentioned requirements, the stirring / mixing granulating apparatus according to the second invention of the present application further comprises the step of moving the processing head provided with the above-mentioned granulating disk and a rotary drive mechanism within a fixed angle range around a rotation axis. the rotatably provided Rukoto, the processing
The flange at the bottom of the drive casing at the head
Therefore, when configured to close the upper opening of the granulation tank
Both are characterized in that the granulation tank is configured to be able to move up and down . The above object is achieved by these means.

[0010]

According to the present invention, first, a rotary drive mechanism for rotating and driving the granulation disk is provided above the granulation disk, so that the granules stirred, mixed and granulated by the granulation disk are directly dropped downward. In addition, the problem of adhesion of particles to the take-out chute does not occur. Further, in the present invention, since the rotary drive mechanism is configured to be rotatable, maintenance such as inspection, cleaning, and repair of the granulating disk and the granulating tank becomes easy.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a stirring and mixing granulator according to the present invention. The order of the description is
First, the structure of the stirring and mixing granulator of the present invention will be described,
Next, the operation mode will be described. As shown in reference numeral 1 is a stirring and mixing granulator of the present invention, substantially agitation of the powder A ₀ The one on the top of the base 2, mixing, performs each processing process of granulation treatment It comprises a head 10 and a granulation tank 30 in which the processing is performed.

The base 2 is formed by assembling an appropriate frame member such as an angle member into a housing. Various members such as a processing head 10 and a granulation tank 30 described below are mounted on the base 2. Provided. The processing head 10 includes a granulating disk 11 that performs a substantial processing operation, and a rotation drive mechanism 12 that rotationally drives the granulating disk 11, and the granulating disk 11 has a disc-like shape. For example, four blades 11b are provided around the disk body 11a.
The four blades 11b are adjacent to each other.
b are arranged so that they protrude alternately up and down, and the respective blades 11 b are bent from the base for attachment to the disk main body 11 a, and the inclination angle of the inner peripheral wall surface 30 a of the granulation tank 30. And is provided with a slight gap to the inner peripheral wall surface 30a.

The rotation drive mechanism 12 rotates a main shaft 13 rising above the center of the granulating disk 11, a driven pulley 14 provided at an upper end of the main shaft 13, and the driven pulley 14 via a belt 15. It has a drive pulley 16 for transmitting, and a drive motor M for transmitting rotation to the drive pulley 16.

The processing head 10 is further provided with a drive casing 17 and a pulley cover 18 so as to cover the rotary drive mechanism 12, and the drive motor M is connected to the drive casing 17 via an appropriate mounting member. Fixedly supported. A flange 17a is provided at the lower end of the drive casing 17, and a rotating bracket 17b provided on the rear side of the flange 17a is provided with a support bracket 4 on the upper surface of the head support 3 rising from the upper surface of the rear of the base 2.
Is rotatably supported by a rotary shaft 5. In FIG. 2, reference numeral 17c denotes a stopper engaging piece that comes into contact with the rotation stopper 6 provided on the upper surface of the head support base 3 and determines the rotation angle.

[0015] the drive casing 17 further has a supply duct 19 which is a supply port of the powder A ₀ is provided raised obliquely upward forward from the base of the flange 17a, also a liquid supply nozzle of the binder liquid L 20 is the flange 17
The binder liquid L provided at an appropriate position a and supplied from the liquid supply pipe 21 is discharged from the liquid supply nozzle 20 onto the granulation disk 11.

A granulation tank 30 is provided below the processing head 10, and is provided with a granulation casing 31 and an inner fitting state inside the granulation casing 31. An oscillating sleeve 32, an air cylinder 33 that abuts a shifter 33a on an outer peripheral surface of the oscillating sleeve 32, and imparts an oscillating motion to the oscillating sleeve 32;
It comprises a flexible chute 34 provided to hang down from the lower surface of the granulation casing 31 and a lifting cylinder 35 for raising and lowering these various members.

The oscillating sleeve 32 has a dimension set so that it can be shifted eccentrically to the inner peripheral wall of the granulation casing 31. It constitutes the peripheral wall. The oscillating sleeve 32 has a short cylindrical shape, and includes an action portion 32a that substantially performs a granulating action and a flange portion 32b at the upper end thereof, which is a portion to be placed on the granulation casing 31. I can. Although not shown, a packing member made of fluororesin (for example, trade name Teflon) having good lubricity is interposed between the granulation casing 31 and the oscillating sleeve 32. The swing sleeve 32 is roughly positioned by a guide pin 36 implanted on the granulation casing 31 side, and a guide formed on the flange portion 32b of the swing sleeve 32 at the guide pin 36. It is assembled with the slit 32c fitted externally.

Further, a shifter 33a driven by an air cylinder 33 is provided as an example to set the movable state of the oscillating sleeve 32. That is, the air cylinder 3
Numerals 3 are attached at three places outside the outer peripheral wall of the granulation casing 31, and the piston-shaped shifter 33 a driven thereby penetrates the outer peripheral wall of the granulation casing 31 to form an outer periphery of the action portion 32 a of the oscillating sleeve 32. The state is set so that it can contact the surface. And this air cylinder 3
The eccentric state of the oscillating sleeve 32 is set by adjusting the protrusion of the oscillating sleeve 3. In order to appropriately control such an eccentric state during operation, a large number of air valves are provided although not shown.

The flexible chute 34 is appropriately blown with pulsed air or the like, whereby the deposits adhering to the inside of the flexible chute 34 are blown off. In addition, the lifting cylinder 35 is provided one by one on the left and right sides of the granulation casing 31 as an example. In the present embodiment, an air cylinder with a guide is used as the lifting cylinder 35 as an example, and the granulation casing 31 is attached thereto. And a cylinder support 37 on the base 2.

In addition, an eye bolt 38 is provided in the granulating casing 31, and the eye bolt 38 is used to fix the granulating casing 31 to the flange 17 a at the lower part of the drive casing 17. When closing the upper opening with the flange 17a at the lower part of the drive casing 17,
A clamp 7 used together with the eyebolt 38, a clamp table 8 for supporting the clamp 7, and a control box 9 for controlling the operation of the stirring and mixing granulator 1 of the present invention.
Etc. are provided, and the stirring and mixing granulating apparatus 1 of the present invention is constituted.

Next, an operation mode of the agitation-mixing granulation apparatus 1 will be described. i) Operation of Each Part First, when performing the stirring and mixing granulation, the drive motor M is driven, and thereby the granulation disk 11 facing the inside of the granulation casing 31 is rotated. Incidentally, the number of revolutions can be appropriately selected and adjusted depending on the properties of the granules A to be produced, the powder A _{0 as} the raw material, and the binder liquid L, and the like. It is.

Ii) Supply of Raw Material In order to produce the granular material A as a product, a powder A _{0 as a} raw material is used.
And the binder liquid L for coupling the two are required to be supplied. First, the powder A ₀ is supplied from the supply duct 19 in a fixed amount, and the binder liquid L is supplied from the liquid supply pipe 21 to be supplied therefrom. The liquid is discharged from the liquid supply nozzle 20 at the tip above the granulation disk 11 facing the granulation casing 31. Of course, the discharge state may be a normal flow or a spray state.

Iii) Granulation Step Next, the situation in which the powder A ₀ is granulated will be described. As described above, the powder A ₀ falling from the supply duct 19 onto the granulating disk 11 rotating at a high speed. And the binder liquid L is agitated by the action of the granulation disk 11 and immediately blown off by the surrounding swirling airflow and centrifugal force so as to be pressed against the oscillating sleeve 32 as soon as it comes into contact with the granulation disk 11. . The powder A ₀ and the binder liquid L are mixed during the blowing.

When such operation is continued, the swing sleeve 3
The mixture of the powder A ₀ and the binder liquid L scattered on the two sides is:
In the meantime, it is beaten by the action of the blade 11b on the granulating disk 11 while flowing down along the inner peripheral surface of the oscillating sleeve 32, where the granulation is performed while the particle size is substantially set, and the flexible chute at the lower part of the granulating casing 31 is formed. It is taken out from 34 downward.

Iv) Maintenance In performing such a preparatory inspection, overhaul, repair or cleaning of the granulation disk 11 and the granulation tank 30 in such an operation, first, the drive motor M is stopped, and the granulation disk 11 is stopped. Stop the rotation of. After that, the fixing by the clamp 7 and the eye bolt 38 is released, and the lifting cylinder 35 is operated to bring the granulation casing 31 to the lower end position.

FIG. 1 or FIG.
As shown by the middle phantom line, the stopper shaft 17 is rotated around the rotation shaft 5 until the stopper locking piece 17 c comes into contact with the rotation stopper 6,
The upper surface of the granulation tank 30 is opened, and maintenance is performed. After the maintenance is completed, the flange 17a of the drive casing 17 is pressed against the upper surface of the granulation casing 31 by a procedure reverse to the procedure described above, and both are fixed by the clamp 7 and the eye bolt 38 to prepare for the next operation. .

The stirring / mixing granulation apparatus 1 of the present invention has the above-described basic configuration, but can also adopt the following configuration in which the partial configuration is further changed. First, the embodiment shown in FIGS. 1 to 5 employs a configuration in which the processing head 10 is rotated about the rotation shaft 5 when the upper surface of the granulation tank 30 is opened. The processing head 10 can be configured to be slidable up and down, and during maintenance, the processing head 10 can be shifted to an upper stop end.
And the processing head 10 can be swung right and left.

In the embodiment shown in FIGS. 1 to 5, the whole of the rotary drive mechanism 12 in addition to the granulating disk 11 is housed in the processing head 10 and is rotated. By providing a clutch mechanism or the like, for example, the rotation of the drive motor M supported on the base 2 is transmitted to the main shaft 13 provided in the processing head 10 and the granulating disk 11 attached to the tip thereof via the clutch mechanism. The configuration described above can also be adopted. In this case, when performing maintenance, the processing head 10 is rotated after the clutch is once disengaged.

[0029]

The present invention has the above-described configuration, and thereby has the following effects. That is, in the present invention, first, since the rotation drive mechanism 12 of the granulation disk 11 is disposed above the granulation disk 11,
By the granulation disk 11, it is possible to drop the granules A which have been stirred, mixed and granulated as they are,
It is not necessary to take a measure to provide the take-out chute 34 'inclining diagonally downward unlike the conventional type shown in FIG. The granules A to pickup chute 34 'with the can which is also avoided a problem that adheres become sediment A _1.

In the present invention, since the processing head 10 is configured to be rotatable about the rotary shaft 5, the work at the time of maintenance is facilitated. There is no need to remove 11.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a stirring and mixing granulating apparatus of the present invention.

FIG. 2 is a vertical sectional side view of the same.

FIG. 3 is an enlarged longitudinal side view showing a periphery of the processing head.

FIG. 4 is a plan view showing a stirring and mixing granulating apparatus of the present invention.

FIG. 5 is a plan view showing the granulating tank in a partially enlarged and broken manner.

FIG. 6 is a skeletal longitudinal sectional view showing a conventional stirring and mixing granulator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Stirring-mixing-granulation apparatus 2 Base 3 Head support 4 Support bracket 5 Rotating shaft 6 Rotation stopper 7 Clamp 8 Clamp base 9 Control box 10 Processing head 11 Granulating disk 11a Disk body 11b Blade 12 Rotation drive mechanism 13 Main shaft 14 Followed Pulley 15 Belt 16 Drive Pulley 17 Drive Casing 17a Flange 17b Rotating Bracket 17c Stopper Locking Piece 18 Pulley Cover 19 Supply Duct 20 Liquid Supply Nozzle 21 Liquid Supply Pipe 30 Granulation Tank 30a Inner Perimeter Wall 31 Granulation Casing 32 Shaking moving the sleeve 32a acts portion 32b flange portion 32c guide slit 33 the air cylinder 33a shifter 34 flexible chute 35 lifting cylinder 36 the guide pin 37 cylinder bearing blocks 38 eyebolt A granular A ₀ powder A ₁ sediment M driving mode L binder solution

Continuation of the front page (56) References JP-A-61-230730 (JP, A) JP-A-3-38239 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B01J 2 / 10-2/14

Claims (2)

(57) [Claims] 1. A granulating disk rotating at high speed is faced in a granulating tank, and the powder and the binder liquid supplied into the granulating tank are stirred, mixed and granulated by the rotation of the granulating disk. In the apparatus, the granulation tank includes an upper opening of a granulation casing.
And the granulated casing
Oscillating slide that can be shifted eccentrically with respect to the inner wall
And the granulating disc comprises
Drive mechanism for the processing head located above the grain tank
Is driven to rotate by the
The head closes the upper opening of the granulation casing
Upward movement of the processing head, comprising a flange
The granulation disk exits from the granulation casing
Stirring and mixing granulator, characterized by being configured to. 2. The apparatus according to claim 1, wherein said granulating disk and a rotary drive mechanism are provided.
The example was treated head by Rukoto provided rotatably in a certain range of angles about the rotation shaft, put into the processing head
The granulation tank
And the granulation tank
The stirring and mixing granulating apparatus according to claim 1, wherein the apparatus is configured to be able to move up and down .