JP2001162154A - Granulating method and granulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a granulating device and method capable of manufacturing a granulated material having relatively large strength and free from the sticking of the granulated materials to each other. SOLUTION: A prescribed quantity of a material to be granulated and water are primarily charged into a horizontal granulation vessel 2 having a rotary shaft 30, to which stirring and granulating blades 32, 32... are attached and which is arranged in the horizontal direction, and a chopper blade 40 rotatably driven at a relatively high speed, are mixed, sheared and dispersed by rotatably driving the stirring and granulating blades 32, 32... and the chopper blade 40 and after that, are primarily granulated by stopping the chopper blade 40 and further rotatably driving the stirring and granulating blades 32, 32.... Next powder is secondarily charged and secondarily granulated by rotatably driving the stirring and granulating blades 32, 32... and a modified granulated material formed by applying the powder on the surface of the primary granulated material is obtained by the secondary granulation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a predetermined amount of a granulated material and a liquid, for example, water, are charged into a horizontal granulation vessel having a horizontal rotating shaft on which a stirring granulating blade is mounted. Then, the stirring granulation blade is rotationally driven to perform primary granulation,
Next, a predetermined amount of powder is secondarily charged, and the stirring and granulating blades are rotationally driven to perform second granulation. The powder is sprinkled on the surface of the primary granulated material by the secondary granulation. The present invention relates to a granulation method for obtaining a sized product in a compressed state, and a granulation apparatus used for performing the granulation method.

[0002]

2. Description of the Related Art Granulating devices are well known in the art, not to mention the name of the document, and a forced stirring type, in which a granulated material in a granulating container is agitated by a stirring blade to granulate, is driven by rotating a cylindrical container. Rolling granulation to granulate the granulated material inside, extruding to rotate the screw inside the cylinder to extrude from the end of the cylinder, and to vibrate the tank containing the granulated material Many types of granulating devices, such as a vibrating type to be made, are known. From these granulators, a granulator suitable for the properties of the granulated material such as dewatered cake, powder, and incinerated ash is appropriately selected and granulated. By the way, the forced agitation type granulator can be said to be suitable for granulating a lump such as a dewatered cake, for example, because the lump is crushed and granulated to some extent by the stirring blade. The granulator of the forced stirring type generally includes a granulation container and a mixing and stirring blade that is driven to rotate inside the granulation container. Therefore, when the granulated material is supplied to the granulation container together with water and the mixing and stirring blades are driven to rotate for a predetermined time, the lump is crushed and granulated. At this time, there is also a batch operation in which the granulated material and water are supplied to the granulation container to perform granulation, and the granulated material is discharged, so-called supply, granulation, and discharge are repeated at predetermined cycles. In addition, a continuous operation in which the granulated material and water are continuously supplied from one end of the granulation container and the granulated material is continuously discharged from the other end can be performed.

[0003]

As described above, in the forced stirring type granulator, agglomerated materials such as dewatered cakes are crushed to some extent by the mixing and stirring blades, and different types of granulated materials are mixed uniformly. Since the granulation is performed after that, there are many advantages. However, it is recognized that the obtained granulated material and the granulating apparatus should be improved. More specifically, the granulated material is kneaded with water and granulated, but when granulated, the granulated material apparently has a high density, and the water contained in the granulated material is formed. Seeps on the surface of the granules. That is, floating water is generated on the surface of the granulated material. Then, the granules discharged from the granulation container adhere to each other due to the floating water and form large lumps. As a result, the granulation operation is wasted, and the subsequent handling of the granulated material is hindered.
Further, conventionally, there is also a problem that the strength of the granulated material discharged from the granulation container is low because the granulated material is simply granulated.

[0004] On the other hand, from the viewpoint of the granulating apparatus, it takes time to crush or mix the granulated material using only the mixing and stirring blades, which is not always satisfactory in terms of production efficiency. In addition, the dewatered cake inherently contains moisture, and water is added to granulated materials such as incineration ash to form granules.In addition, the atmosphere contains moisture in the form of water vapor. During the kneading and granulation, the granulated material adheres to the inner peripheral surface of the granulation container as a deposit. This adhering matter is grown by being pressed against the inner peripheral surface by the action of the strong centrifugal force of the rotationally driven mixing and stirring blade, but is larger than the gap between the tip of the mixing and stirring blade and the inner peripheral surface of the granulation vessel. Before it grows into a mixture, it is scraped off at the tip of the mixing stirring blade. At this time, since the attached matter is compressed by the mixing and stirring blade, it becomes a hard solidified matter.
The tip of the mixing and stirring blade comes into contact with this hard solid and is driven to rotate, so that the mixing and stirring blade is greatly worn. In addition, since it is driven to rotate by frictional contact, power consumption is increased. Furthermore, after the end of the granulation operation, the inside of the granulation container is cleaned, but hard deposits hinder the cleaning. The present invention has been made in view of the above-described problems, and provides a granulation method capable of producing a granulated material having relatively large strength and obtained granules that do not adhere to each other. The purpose is. Moreover,
It is an object of the present invention to provide a granulation method in which a lump such as a dehydrated cake is mixed, sheared, and dispersed in a short time, and granulated. Another object of the present invention is to provide a granulating apparatus used for performing these granulating methods.

[0005]

SUMMARY OF THE INVENTION The above object of the present invention is as follows.
This is achieved by performing granulation from the secondary granulation and the secondary granulation, and granulating the surface of the primary granulated product with the powder by the secondary granulation. In addition, this is achieved by cooling the inner peripheral wall surface of the horizontal granulation container from the outside. Alternatively, this is achieved by providing a chopper blade that is driven to rotate at high speed together with the granulation stirring blade. That is, in order to achieve the above object, the invention according to claim 1 provides a horizontal granulation container in which a rotating shaft to which a stirring granulation blade is attached is arranged in a horizontal direction, and a predetermined amount of granulation is performed. First, an object and a liquid are charged, and the stirring granulation blade is driven to rotate to perform primary granulation. Then, a predetermined amount of powder is secondarily charged, and the stirring granulation blade is further driven to rotate. The secondary granulation is performed, and the secondary granulation is configured to obtain a sized product in a state in which the surface of the primary granulated product is dusted with powder. The invention according to claim 2 is characterized in that a horizontal granulation container having a chopper blade that is driven to rotate at a relatively high speed while the rotating shaft to which the stirring granulation blade is attached is arranged in a horizontal direction, And the liquid are mixed, sheared and dispersed by rotating the stirring granulation blade and the chopper blade, and the primary granulation is performed by rotating the stirring granulation blade. Then, the powder was secondarily charged, and the stirring granulation blade was rotationally driven to perform secondary granulation. The powder was sprinkled on the surface of the primary granulated material by the secondary granulation. It is configured to obtain a sized product in a state. According to a third aspect of the present invention, a plurality of agitating granulation blades are attached at a predetermined interval in the axial direction, and the rotating shafts are arranged in the horizontal direction and are driven to rotate at a relatively high speed. A predetermined amount of granulated material and liquid are continuously charged to one end of a horizontal granulation container having a chopper blade and relatively long in the axial direction, and the stirring granulation blade and the chopper blade are separated. This is a granulation method in which the inputted granulated material and the liquid are granulated while being transferred to the other end by rotating and driving, and the granulation method is performed at one end of the horizontal granulation container. The granulated material and the liquid are continuously primary charged, and the stirring granulating blade and the chopper blade are rotationally driven to mix, shear and disperse, and the primary granulation is performed by the stirring granulating blade in the middle part. And then continuously pulverize the powder at the end
Then, secondary granulation is performed by the stirring granulation blade, and the secondary granulation is performed so as to continuously obtain a granulated product in a state where powder is sprinkled on the surface of the primary granulated product. It is composed of
According to a fourth aspect of the present invention, at the time of the second charging according to any one of the first to third aspects, the liquid for adjustment is also charged. The invention according to claim 5 comprises a horizontal granulation container into which a granulated material and a liquid are charged, and a rotating shaft to which a stirring granulating blade is attached, wherein the rotating shaft includes the horizontal granulation. Along with being provided horizontally inside the container,
The inner peripheral wall of the horizontal granulation container is cooled from the outside. The invention according to claim 6 is directed to a horizontal granulation container into which a granulated material and a liquid are charged, a rotating shaft to which a stirring granulation blade is attached, and a relatively high speed in the horizontal granulation container. The rotating shaft is provided in the horizontal granulation container in a horizontal direction, and the chopper blade can be driven and stopped independently of the stirring granulation blade, The inner peripheral wall of the horizontal granulation container is cooled from the outside. According to a seventh aspect of the present invention, the primary material supply unit into which the granulated material and the liquid are introduced near one end, and the sized product is discharged near the other end. A horizontal granulation container having a relatively axial length, wherein a material discharge section is provided with a secondary material supply section into which powder is mainly charged, between the primary material supply section and the sized product discharge section. A rotating shaft on which a plurality of stirring granulating blades are attached at predetermined intervals in the axial direction, and a chopper blade rotationally driven at a relatively high speed in the horizontal granulating vessel, Is provided in a horizontal direction inside the horizontal granulation container, and the chopper blade is provided at a position corresponding to a vicinity of a primary material supply section of the horizontal granulation container, and inside the horizontal granulation container. The peripheral wall is cooled from the outside.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIGS. 1 (a) and 1 (b) show a granulating apparatus 1 according to a first embodiment of the present invention for granulating in a batch manner. Granulation device 1 according to the present embodiment
Is a horizontal horizontal granulation container 2 in which the axis is arranged in the horizontal direction.
It has. A rotating shaft 30 is provided in the horizontal granulation container 2 in a horizontal direction.

The horizontal granulation container 2 has a substantially cylindrical shape. And, above the horizontal granulation container 2, an air vent 3
A material supply port 4 which also serves as a water supply, and a granulated material discharge port 6 having an opening / closing lid 5 are provided below the material supply port 4, respectively. The material supply port 4 is closed by a lid when necessary, but is not shown in FIG. Both sides of the horizontal granulation vessel 2 are closed by side walls 7, 7, and the lower ends of the side walls 7, 7 are fixed to the foundation. A water jacket 10 is provided on the outer peripheral portion of the horizontal granulation container 2 configured as described above, as shown in FIG. This water jacket 10 is used for the horizontal granulation container 2.
, And a jacket outer peripheral wall 11 provided at a predetermined distance from the outer peripheral wall. The water jacket 10 is provided so as to avoid the material supply port 4, the sized product discharge port 6, and the like. Although not shown in the drawing, they are also provided on the inner side walls of the side walls 7 and 7 as appropriate. The inside of the water jacket 10 configured as described above serves as a cooling water flowing channel, and a baffle plate, a guide plate, and the like are appropriately provided so that the cooling water does not short-circuit in the water jacket 10. Further, radiation fins and the like are appropriately provided on the outer peripheral surface of the horizontal granulation container 2 facing the water jacket 10 in order to enhance the cooling effect of the inner peripheral wall, but are not shown in FIG.

A water guide connector 12 is attached to a lower end of the water jacket 10, and a drain connector 13 is attached to an upper end of the water jacket 10 so as to face the water guide connector 12. And the water guide connector 12
Has a water supply pipe 14 and a drainage connector 13 has a return pipe 1.
5 are respectively connected. The water supply pipe 14 and the return pipe 15 are indirectly connected to a refrigeration cycle 20 described later. The refrigeration cycle 20 includes a compressor 21 for compressing the refrigerant, a condenser 22 for liquefying the refrigerant that has been compressed by the compressor 21 and has become a high-temperature, high-pressure gas, as is well known in the art.
The condenser 22 includes an expansion valve 23 for lowering the temperature and pressure of the refrigerant which has become a high-temperature, high-pressure liquid in the condenser 22, an evaporator 24 for removing heat from the refrigerant and evaporating to perform a freezing operation. And the evaporator 24 is arrange | positioned in the heat exchange container 25 formed with the heat insulating material. Therefore, when the refrigeration cycle 20 is operated, the inside of the heat exchange container 25 is cooled.

One end of the water supply pipe 14 is connected to the bottom of the heat exchange vessel 25. Also, return pipe 15
Of the heat exchange container 2 is connected to the heat-insulating cushion tank 26 in an open state.
Reference numeral 5 is connected in a watertight state by a communication pipe 27. And
The water jacket 1 is connected to the water supply pipe 14 from the heat exchange vessel 25.
A water pump 28 for pumping the cooling water toward zero is interposed. Therefore, according to the present embodiment, although the cushion tank 26 is once opened, the cooling water circulates. According to the present embodiment, the water level gauge is provided in the cushion tank 26, and when the water level in the cushion tank 26 falls, the valve is opened and water is appropriately supplied from the outside.

As described above, the rotating shaft 30 is provided in the horizontal granulation container 2 having the above-described configuration in the horizontal direction. A plurality of arms 3 are provided on the rotation shaft 30 at predetermined intervals in the axial direction and the rotation angle direction.
Are fixed, and these arms 31, 31,.
The stirring granulation blades 32, 32,. In the present embodiment, the stirring granulation blades 32, 32, ... have a plow shape, that is, a shovel shape, and the granulated material is suspended and diffused and mixed by the stirring granulation blades 32, 32, ... Granulated. Such stirring granulation blades 32,
The rotating shaft 30 to which the 32,... Are attached has bearings 33, (3) fixed to the side walls 7, 7 of the horizontal granulation container 2.
3) is rotatably supported, and is connected to a motor 35 via a speed reduction mechanism 34 outside the bearing. Therefore, when the motor 35 is started, the stirring granulation blades 32, 3
.. Are driven to rotate at a relatively low speed in a predetermined direction via the speed reduction mechanism 34.

According to the embodiment shown in FIG.
Inside the horizontal granulation container 2, stirring granulation blades 32, 32,
.. Are provided with chopper blades 40, preferably a plurality of chopper blades 40. Chopper blade 40
Are provided in the vicinity of the lower part of the horizontal granulation container 2 and are used for shearing and dispersing the granulated material that is lifted up by the stirring granulation blades 32, 32, and falls, and is provided outside. The stirring granulation blades 32, 32,.
Irrespective of this, it is driven to rotate at a relatively high speed independently. The granulating apparatus 1 according to the present embodiment
The apparatus also includes a control device, a hopper for temporarily storing the granulated material, a weighing device for measuring the granulated material, and the like, but they are not shown in FIG.

Next, the operation of the above embodiment will be described. The refrigeration cycle 20 and the pump 28 are started. Then, the cooling water in the heat exchange container 25 is cooled by the evaporator 24 of the refrigeration cycle 20. The cooled cooling water circulates in the order of the water supply pipe 14, the water jacket 10, the return pipe 15, the cushion tank 26, the communication pipe 27, and the heat exchange vessel 25. Meanwhile, the inner peripheral wall of the horizontal granulation container 2 is cooled. Activate the motor 35 to stir and granulate the blades 32, 32, ...
Drive. Further, the chopper blade 4 is driven by the motor 41.
Drive 0. Then, a predetermined amount of granulated material, for example, a dehydrated cake and water, which are measured from the material supply port 4, are charged.
Then, the dehydrated cake is mixed, sheared and dispersed mainly by the chopper blades 40 in a short time, for example, for 2 to 5 minutes. The chopper blade 40 is stopped. The mixed / sheared / dispersed dewatered cake is then agitated and granulated blades 32, 32,
Granulated by ... Due to this primary granulation, water floats on the surface of the granulated material. Subsequently, a weighed powder, for example, incineration ash is introduced. At this time, when the amount of floating water is small, water for adjustment is also supplied so that a water film is formed on the surface of the primary granulated material. The secondary granulation is performed by the subsequent rotation of the stirring granulation blades 32, 32,. As a result, a sized product in a state where the surface of the granulated material is dusted with powder is obtained. Open the lid 5 and take out the sized product. This completes one batch of granulation. Thereafter, the same batch operation is performed to granulate.

When the sized product is obtained as described above,
Since the inner peripheral wall of the horizontal granulation container 2 is cooled by the cooling water, moisture in the internal space of the horizontal granulation container 2 is condensed on the surface of the inner peripheral wall. At this time, since the inner peripheral wall is actively cooled, a large amount of dew is formed and a thick water film is formed. On the other hand, the granulated material is scattered when it is supplied to the horizontal granulation container 2 and when it is stirred by the stirring granulation blades 32, 32,. Then, it reaches the inner peripheral wall. By the way, according to the present embodiment, since the water film is formed on the inner peripheral wall, the granulated material that tries to reach the inner peripheral wall is captured by the water film. Then, the adhered granulated material is peeled off due to vibration or other causes. This prevents adhesion of granulated material,
Or it is removed.

It is clear that the present invention is not limited to the above embodiment. For example, in the above embodiment, since the chopper blades 40 are provided, a lump such as a dehydrated cake is also mixed / sheared / dispersed in a short time and easily granulated. It is clear that the operation can be performed without the chopper blades 40 in the case of powder. It is also clear that the water can be supplied from a sprinkling nozzle dedicated to water. In particular, when water is sprayed from the water spray nozzle at the time of secondary charging, water is evenly sprayed on the surface of the primary granulated product, and the “glazing” effect is enhanced. Further, in the above embodiment, since water is used as the cooling medium, the heat capacity is large and the cooling effect is high, but it can be carried out with air that is easy to handle. Furthermore, it can be cooled with simple water. In the above-described embodiment, the granulated material is one type of dewatered cake. However, it is apparent that granulation can be similarly performed from several types of materials. Further, it is apparent that a liquid in which a chelating material is added to water to be added can be applied.

Next, a second embodiment of the present invention for continuously granulating will be described with reference to FIGS. Note that components similar to those of the first embodiment will be briefly described with the same reference numeral appended with a dash "'" or "". FIG. 2 is a schematic perspective view for understanding the outline of a granulating apparatus 1 ′ for continuously granulating. As shown in FIG. 2, according to the second embodiment, a horizontal type granulating apparatus is used. The granulation container 2 'is relatively long in the axial direction. Then, at one end, similarly to the first embodiment, a driving device including a motor 35 ', a speed reduction mechanism 34' and the like is provided. In FIG. 2, a primary material supply port 4 'for continuously feeding the granulated material is provided in an upper portion near the end portion. FIG.
As shown in the figure, the secondary material supply port 4 ″ is located closer to the right end than the middle part of the horizontal granulation vessel 2 ′, and discharges the sized product continuously to the lower part of the other right end. A sized material discharge port 6 'is provided, and the stirring granulating blades 32', 32 ',
Are attached to the rotating shaft 30 'at predetermined intervals in the axial direction and the rotational angle direction, but the chopper blades 40', 40 ', ... are provided only near the material supply port 4'. . Granulation liquid addition nozzles 5 'and 5' are also provided near the material supply port 4 '. Due to such arrangement of the material supply port 4 ′, the second material supply port 4 ″, the granulated material discharge port 6 ′, the chopper blades 40 ′, 40 ′,... In FIG. 2, the pretreatment zone S, the first granulation zone Z1, and the second granulation zone Z2 are sequentially arranged from the left.
And so on.

Therefore, the motor 35 'is started to activate the stirring granulating blades 32', 32 ',.
0 ′, 40 ′,... And the material supply port 4 ′
, And water is continuously fed from the granulation liquid addition nozzles 5 'and 5', the chopper blades 4 of the horizontal granulation vessel 2 '
The dehydrated cake is mixed, sheared and dispersed in the pretreatment zone S by 0 ′, 40 ′,. Then, the particles are sent to the next first granulation zone Z1 by the floating action of the stirring granulation blades 32 ′, 32 ′,. The mixed, sheared and dispersed dewatered cake is granulated by the stirring granulation blades 32 ', 32', ... in the first granulation zone Z1. This one
Water floats on the surface of the granulated material by the next granulation. Similarly, a predetermined amount of powder, for example, incineration ash, is continuously supplied from the second material supply port 4 ″. At this time, if the amount of floating water is small, a water film is formed on the surface of the primary granulated product. As such, it also supplies water.
In the second granulation zone Z2, the stirring granulation blades 32 ', 3'
Secondary granulation is performed by the rotation of 2 ′,. As a result, a sized product in a state in which powder is applied to the surface of the granulated product is obtained, and the sized product is continuously discharged from the sized product discharge port 6 '. In the second embodiment, the refrigeration cycle and the like are not shown in FIG.
Is provided, the adhesion of the granulated material to the inner peripheral wall of the horizontal granulation container 2 'is prevented or removed.

The second embodiment can be variously modified. For example, the shapes of the stirring granulation blades 32 ′, 32 ′,... Are set such that the granulated material is sequentially sent from the mixing / shearing / dispersion zone S to the second granulation zone Z 2 via the first granulation zone Z 1. It is clear that the shape can be changed. It is also apparent that the modification and the modification can be made in the same manner as the modification of the first embodiment. In addition, the sized product discharge port 6 '
Can be provided below the horizontal granulation container 2 'as shown by the large arrow A in FIG.

[0018]

As described above, according to the present invention, a predetermined amount of a granulated material and a liquid are placed in a horizontal granulation container in which a rotating shaft to which a stirring granulation blade is attached is horizontally arranged. , And the stirring granulation blade is rotated to perform primary granulation.
Next, a predetermined amount of powder is secondarily charged, and the stirring and granulating blades are rotationally driven to perform second granulation. The powder is sprinkled on the surface of the primary granulated material by the secondary granulation. Because the obtained sized product is obtained, the obtained sized product does not adhere to each other, and an effect unique to the present invention is obtained. In addition, since the sized product is obtained in a dusted state, the strength is large. According to the invention as set forth in claim 2, a horizontal granulation container having a chopper blade that is rotatably driven at a relatively high speed while the rotation shaft to which the stirring granulation blade is attached is arranged in the horizontal direction. A fixed amount of the granulated material and liquid are primarily charged, and the stirring granulation blade and the chopper blade are rotationally driven to mix, shear, and disperse, and the stirring granulation blade is rotationally driven to perform primary molding. Then, the powder is secondarily charged, and the stirring and granulating blades are further driven to rotate to perform secondary granulation. The powder is sprinkled on the surface of the primary granulated material by the secondary granulation. Since the sized product is obtained in a state of being mixed, in addition to the above-mentioned effects, the effect of mixing, shearing, and dispersing agglomerates such as a dehydrated cake in a relatively short time is added. Further, according to another invention, at one end of the horizontal granulation container, the granulated material and the liquid are continuously and firstly charged, and the stirring granulation blade and the chopper blade are rotationally driven to mix and mix. Shearing and dispersing, and primary granulation by the stirring granulation blade in the middle part, and then continuously powdering the powder in the end part, and further secondary granulation by the stirring granulation blade, By this secondary granulation, a sized product in a state where powder is sprinkled on the surface of the primary granulated material is continuously obtained, so that an effect of continuously granulating in addition to the above-described effect is further obtained. . According to still another invention, since the inner peripheral wall of the horizontal granulation container into which the granulated material and the liquid are charged is configured to be cooled from the outside, dew condensation occurs on the inner peripheral wall surface and the water is scattered. The granulated material that tries to reach the inner wall surface is captured by the dew condensation water and is flowed together with the dew condensation water. Thereby, the effect of preventing the granulated material from adhering to the inner peripheral wall surface of the horizontal granulation container and causing a trouble is further obtained.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a first embodiment of the present invention, in which (a) is a schematic perspective view showing a partly broken portion, and (b) is a process in a granulated state. It is a typical sectional view shown.

FIG. 2 is a perspective view showing a part of a second embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view showing a part of a second embodiment of the present invention together with a granulated state.

[Explanation of symbols]

2,2 'Horizontal granulation container 4,4'
Material supply port 6, 6 'Granulated material discharge port 10
Water jacket 30, 30 'Rotary axis 32, 32'
Agitation granulation blade 40, 40 'Chopper blade

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshitaka Ishikawa 7-5-2 Higashi Narashino, Narashino-shi, Chiba F-term (reference) 4F004 BA00 FA02 LA01

Claims (7)

[Claims] 1. A predetermined amount of a granulated material and a liquid are firstly charged into a horizontal granulation container having a rotating shaft on which a stirring granulation blade is mounted and arranged in a horizontal direction, and the stirring granulation is performed. The blade is rotated to perform primary granulation, then a predetermined amount of powder is secondarily charged, and the stirring granulation blade is further rotated to perform secondary granulation. A granulation method characterized by obtaining a sized product in a state where powder is applied to the surface of the granulated product. 2. A horizontal granulation vessel having a chopper blade that is rotatably driven at a relatively high speed while a rotating shaft on which a stirring granulation blade is mounted is arranged in a horizontal direction.
A predetermined amount of the granulated material and liquid are primarily charged, and the stirring granulation blade and the chopper blade are rotationally driven to mix, shear, and disperse, and the stirring granulation blade is rotationally driven to perform primary rotation. Then, the powder is secondarily charged, and the above-mentioned stirring granulation blade is rotationally driven to perform secondary granulation. The powder is applied to the surface of the primary granulated material by the secondary granulation. A granulation method characterized by obtaining a sized product in a crushed state. 3. A rotating shaft to which a plurality of stirring granulating blades are attached at predetermined intervals in the axial direction is horizontally arranged, and has a chopper blade which is driven to rotate at a relatively high speed. Continuously feeding a predetermined amount of the granulated material and liquid to one end of a horizontal granulation container that is relatively long in the axial direction, and rotationally driving the stirring granulation blade and the chopper blade. According to the granulation method of granulating while the input granulated material and liquid are transferred to the other end, the granulated material at one end of the horizontal granulation container, The liquid is continuously primary-injected, the stirring granulation blade and the chopper blade are rotationally driven to mix, shear, and disperse, and the primary granulation is performed in the middle part by the stirring granulation blade, and then the end is formed. In the section, the powder is continuously and secondarily charged, and the stirring granulation blade is further added. 2 Tsugizotsubu and granulation method characterized by obtaining a granulated product of state powder is dusted on the surface of the primary granules by the second granulation continuously by. 4. The method according to claim 1, wherein
A granulation method in which a liquid for adjustment is also charged at the next charge. 5. A horizontal granulating container into which a granulated material and a liquid are charged, and a rotating shaft to which a stirring granulating blade is attached, wherein the rotating shaft is provided inside the horizontal granulating container. A granulating apparatus provided in a horizontal direction, wherein an inner peripheral wall of the horizontal granulating container is cooled from the outside. 6. A horizontal granulation container into which a granulated material and a liquid are charged, a rotating shaft to which a stirring granulation blade is attached,
The horizontal granulation container comprises a chopper blade that is driven to rotate at a relatively high speed, the rotation shaft is provided in a horizontal direction inside the horizontal granulation container, and the chopper blade is configured to be the stirring granulation blade and Is capable of being independently driven and stopped, and the inner peripheral wall of the horizontal granulation container is cooled from the outside. 7. A primary material supply unit into which granulated material and liquid are supplied near one end, a sized material discharge unit from which sized material is discharged near the other end, and A relatively axially long horizontal granulation container provided with a secondary material supply section into which powder is mainly charged between the primary material supply section and the sized material discharge section; A rotating shaft to which a plurality of stirring granulating blades are attached at intervals, and a chopper blade rotatably driven at a relatively high speed in the horizontal granulating vessel, wherein the rotating shaft is The chopper blade is provided in a horizontal direction inside the container, and the chopper blade is provided at a position corresponding to a vicinity of a primary material supply unit of the horizontal granulation container, and an inner peripheral wall of the horizontal granulation container is cooled from the outside. A granulating device characterized in that: