JP3417669B2 - Tank moving type fluidized drying equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluidized-bed drying device for drying a wet granular kneaded product during granulation.

[0002]

2. Description of the Related Art Generally, when granulating granules, powders, etc., a raw material powder and a liquid are added and kneaded to form fine kneaded granules, which are then dried. ing. A conventional fluid drying device will be described with reference to FIG. In FIG. 3, the conventional fluidized-bed drying apparatus includes a housing 10 having a substantially rectangular horizontal cross section, a filter 11 for partitioning the interior of the housing 10 into a blower chamber 20 and a fluidized bed chamber 30 in a vertical direction, and a blower chamber 20. A partition plate 21 for partitioning a plurality of (three) parts in the horizontal direction, an opening 22 and a shutter 23 for adjusting the air volume in each part of the blower chamber 20 partitioned in the horizontal direction, and warm air in the blower chamber 20. A blower pipe 24 for introducing the
A partition plate 31 for partitioning the fluidized-bed chamber 30 into a plurality of (three) parts in the horizontal direction corresponding to the partition plate 21, and a partition plate 3
1 is provided with an article-to-be-dried supply port 12 and an article-to-be-dried discharge port 13 respectively provided on a pair of side walls of the case 10, and an exhaust port 14 provided at a ceiling portion of the case 10. .

The material to be dried 1 such as a granular kneaded material, which is supplied from the material to be dried supply port 12 into the fluidized bed chamber 30, is wound up by the hot air flowing through the filter 11 and flows. The partition plate 31 is for the dried material supply port 1
It is provided so as to prevent the flow of the material to be dried 1 from 2 to the material to be dried outlet 13. In order for the material to be dried 1 supplied from the material to be dried supply port 12 to be discharged from the material to be dried discharge port 13, it passes over the upper part of the partition plate 31 or goes under the lower part, and is adjacent to the partition plate 31. You have to move to the part. Therefore, it takes a certain time to pass through the fluidized bed chamber 30. During this period, the material to be dried 1 is dried by hot air.

[0004]

However, the material to be dried 1 supplied from the material to be dried supply port 12 passes through the fluidized bed chamber 30 at a constant rate within a short time,
Some are discharged from the dried object discharge port 13 without being sufficiently dried. Similarly, there are some that stay in the fluidized bed chamber 30 at a constant rate for a long time and are heated to a high temperature by hot air and have a viscosity. If the dried granules contain particles that are not sufficiently dried and that are moist or particles that are viscous due to high temperatures, the dried particles will adhere to the surface around these particles and the size of the particles will increase. Becomes uneven. Further, the coarse nuclei and the lumps that have adhered and agglomerated remain at the bottom of the fluidized bed, causing a bumping phenomenon, which causes poor flow and uneven drying. That is, in the conventional fluidized-bed drying device, there is no guarantee that all the particles will be dried for a certain period of time, and there is a problem that the sizes of the particles may become uneven.

The present invention has been made in order to solve the above-mentioned problems of the conventional example, and makes the residence time of all the particles in the fluidized drying device constant so that the particle size becomes non-uniform. It is an object of the present invention to provide a tank-moving type fluidized-bed drying device that prevents the above-mentioned problems.

[0006]

In order to achieve the above object, a tank moving type fluid drying apparatus of the present invention is a casing having a lower blowing chamber and an upper fluidized bed chamber vertically divided by a filter. An air blowing means for supplying a predetermined warm air to the air blowing chamber, a plurality of moving tanks which are intermittently circulated and driven in the fluidized bed chamber and have substantially the same size, and the inside of the fluidized bed chamber An object to be dried for supplying a predetermined amount of the object to be dried to the moving tank, and a second predetermined position in the fluidized bed chamber to the moving tank. An object to be dried for discharging an object to be dried, and an air quantity adjusting means for horizontally dividing the air blowing chamber into a plurality of parts and adjusting an air quantity of each of the divided parts. . In the above structure, it is preferable that the housing has a substantially cylindrical shape, and the moving tank is rotated around a predetermined vertical axis. Further, in the above-mentioned configuration, the moving tank is a cylindrical container having the vertical axis as a center and is partitioned by a plurality of partition plates that are radially provided at equal angles from the vertical axis, and each is partitioned. It is preferable that the transfer tank accommodates each dried object. Also,
In the above structure, it is preferable that the moving tank is partitioned into 4 to 20. Further, in the above structure, the bottom surface of the cylindrical container is preferably any one selected from a filter, a punching plate, a filter cloth, a sintered metal, and a metal net. Further, in the above structure, it is preferable that the first predetermined position and the second predetermined position are adjacent to each other via a partition plate. Further, in the above configuration, the blower chamber is divided into three or more portions, and among the divided portions, the portion corresponding to the first predetermined position is not supplied with warm air or has a small supply amount. However, the air volume of the portion corresponding to the first predetermined position adjacent to the side opposite to the second predetermined position has the largest air volume, and the air volume of the portion corresponding to the second predetermined position has the smallest air volume. In addition, it is preferable to sequentially adjust the air volume of each divided portion. Further, in the above-mentioned configuration, among the divided parts, a part corresponding to the first predetermined position corresponds to only one moving tank stopped at the first predetermined position and is divided into other parts. It is preferable that each of the opened portions corresponds to two or more moving tanks. Further, in the above-mentioned configuration, it is preferable that the dried object discharging means is a suction nozzle provided on a ceiling portion of the casing, and is retracted above the moving tank while the moving tank is being driven. Further, in the above structure, a three-way switching valve is connected to the dried material discharging means, one of the other two directions of the three-way switching valve is a cooling air intake, and the other one is a blower. It is preferable that the three-way switching valve connects the cooling air intake and the blower to cool the blower while the moving tank is being driven. Further, in the above structure, the suction nozzle has a fixed portion fixed to a ceiling portion of the housing, and a movable portion suspended from the ceiling portion via a lever, and the movable portion rotates the lever. First connected vertically below the fixed part by
It is preferable to take the above state and the second state retracted above the moving tank. Further, in the above structure, it is preferable that a classification means is provided between the dried material discharging means and the three-way switching valve, and a dried material collecting means is provided between the three-way switching valve and the blower.

[0007]

According to the tank moving type fluidized drying apparatus of the present invention configured as described above, the moving tanks have substantially the same size, and the height of the side wall of each moving tank depends on the material to be dried. It is set so as not to go over and move to the next moving tank.
At a first predetermined position in the fluidized bed chamber, a predetermined amount of material to be dried is supplied to the moving tank by the material to be dried supply means, and the moving tank containing the material to be dried is intermittently circulated in the fluidized bed chamber. The fluidized bed chamber is circulated for a certain period of time. Then, at the second predetermined position in the fluidized bed chamber, the dried material to be dried is discharged from the moving tank by the dried material discharging means to the outside of the housing. The warm air introduced into the lower blowing chamber flows into the upper fluidized bed chamber through the filter, and winds and drys the material to be dried inside each moving tank. At this time,
The material to be dried is dried with warm air. The blower chamber is divided into a plurality of parts in the horizontal direction, and the air volume adjusting means adjusts the air volume of each of the divided parts, so that even if the drying progresses and the weight of the dried article becomes lighter, the dried article moves on the side wall of the moving tank. You will not get over and move to the next transfer tank. Since all particles of the material to be dried stay in the fluidized bed chamber for a certain period of time from being supplied to the moving tank at the first predetermined position and being discharged at the second predetermined position, the drying time is constant. , Evenly dried. As a result, the dried particles do not include non-dried particles or viscous particles, and large particles having these particles as cores are not generated.

By making the casing substantially cylindrical and rotating the movable tank about a predetermined vertical axis, the structure of the circulation driving mechanism of the movable tank is simplified. In addition, by constructing a moving tank by partitioning a cylindrical container centered on the vertical axis with a plurality of partition plates that are provided at equal angles radially from the vertical axis, the structure of the moving tank can be simplified and moved. Intermittent driving of the tank becomes easy.

Generally, in the steps before and after the drying step, the material to be dried is continuously fed. On the other hand, in the tank moving type fluid drying apparatus of the present invention, the supply and discharge of the material to be dried are temporarily stopped during the intermittent driving of the moving tank. However, by setting the number of moving tanks to 4 to 20, the time required to dry the dried object, that is, the time required for the dried object to be supplied to the moving tank and discharged from the dried tank, The ratio of the discharge stop time becomes small, and there is not much difference from the case of substantially continuous feeding, and the connection with each process before and after becomes smooth.
Further, by directly using the filter on the bottom surface of the cylindrical container, the structure of the housing is simplified, and the size of the fluidized drying device, the size of the moving tank together with the filter depending on the air volume and the type of the material to be dried, The height and number of tank walls can be changed. Further, by making the first predetermined position and the second predetermined position adjacent to each other via the partition plate, the material to be dried does not move to the dried tank, and the drying time is guaranteed, and
The empty transfer tank will disappear and the transfer tank will be used effectively.

Further, the air blowing chamber is divided into three or more parts, and among the divided parts, hot air is not supplied to the part corresponding to the first predetermined position, so that the first predetermined position is covered. Dry matter does not flow backwards. In addition, by increasing the air volume of the portion adjacent to the second predetermined position of the portion corresponding to the first predetermined position, the fluidity of the material to be dried having the highest water content and the heavy weight is increased. , Efficiently dried. Further, since the portion corresponding to the second predetermined position is discharged by suction, the air volume of each divided portion is successively reduced so that the air volume becomes the smallest, whereby the drying progresses and the weight of the material to be dried is increased. Corresponding to the gradual decrease in weight, the material to be dried does not pass over the side wall of the transfer tank, and the air volume can be used efficiently according to the transition from the constant rate drying area to the decreasing rate drying area. , The residence time of all the materials to be dried inside the fluidized bed chamber becomes constant. Also,
Of the divided parts, the part corresponding to the first predetermined position is made to correspond to only one moving tank stopped at the first predetermined position, and the other divided parts are made to be two or more moving tanks, respectively. Correspondingly, the number of air volume adjusting means is reduced and the structure of the device is simplified.

Further, the material to be dried discharging means is a suction nozzle provided on the ceiling part of the housing, and the suction nozzle and the moving tank interfere with each other by retreating above the moving tank while the moving tank is being driven. There is no collision). Further, as in the conventional example, in the overflow type fluid drying device that discharges the material to be dried by flowing from the material to be dried discharge port provided at a position higher than the filter surface, a lump remains on the filter, but suction By discharging the material to be dried, the lump is also sucked at the same time, and the lump does not remain at the bottom of the transfer tank. Also, a three-way switching valve is connected to the dried material discharging means, one of the other two directions of the three-way switching valve is used as a cooling air intake, and the other one is connected to a blower to drive the moving tank. The heat load on the blower is reduced by cooling the blower by switching the middle and three-way switching valve so as to connect the cooling air intake and the blower. The suction nozzle is composed of a fixed part fixed to the ceiling part of the housing and a movable part suspended from the ceiling part via a lever, and the movable part is connected vertically below the fixed part by the rotation of the lever. By taking the first state and the second state retracted above the moving tank, the mechanical structure of the suction nozzle is simplified and the space occupied inside the housing is reduced. Further, since the suction of the material to be dried by the suction nozzle is stopped while the moving tank is being driven, a classifying means is provided between the material to be dried discharging means and the three-way switching valve and between the three-way switching valve and the blower. By providing the dried material recovery means, the shutter operation in the classification means or the like can be omitted or simplified, and the classification and recovery steps of the dried material can be simplified.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tank moving type fluid drying apparatus of the present invention will be described with reference to FIG. 1 which is a perspective view showing the construction of a preferred embodiment thereof. In FIG. 1, a tank moving type fluid drying apparatus 100 is shown.
Is a substantially cylindrical casing 101, and a filter 102 that vertically divides the inside of the casing 101 into two parts, that is, a lower blowing chamber 110 and an upper fluidized bed chamber 120.
A vertical axis 121 provided in the center of the fluidized bed chamber 120, a plurality of moving tanks 122 arranged around the vertical axis 121 as a center, and a first vertical division of the blower chamber 110 into a plurality of parts in the horizontal direction. Partition plate 111 and the first
And a fluidized bed chamber 12 for supplying a predetermined hot air to each part partitioned by the partition plate 111 of
0 is provided at a first predetermined position X and is provided at a second predetermined position Y in the fluidized bed chamber 120 and a dry substance supply chute 123 for supplying a predetermined amount of the dry substance to the moving tank 122. A suction nozzle 124 for discharging the dried material to be dried from the moving tank 122 and an exhaust port 125 provided in the ceiling portion of the housing 101 are provided.

The moving tank 122 is formed by partitioning a cylindrical container having a vertical axis 121 as a center by a plurality of second partition plates (division plates) 126 provided at equal angles radially from the vertical axis 121. The drive mechanism (not shown) intermittently circulates (rotates) the vertical shaft 121 as a center. In general, it is preferable that the number of the moving tanks 122 is 4 to 20, and in this embodiment, it is divided into 12, for example. Although the filter 102 is provided between the blower chamber 11 and the fluidized bed chamber 120, the bottom surface of the cylindrical container may be directly used as the filter and the filter 102 may be omitted.
Further, the first predetermined position X and the second predetermined position Y are adjacent to each other, and are separated by the third partition plate 127 so that the undried and damp material does not mix with the dried material. Has been.

The blower chamber 110 includes the first partition plate 1
It is divided into three or more (four in this embodiment) portions (hereinafter, divided portions) by 11. Of the divided portions, the divided portion 113 corresponding to the first predetermined position X has a blower tube 1
No 12 is provided and hot air is not supplied. on the other hand,
A blower pipe 112 is provided in the divided portion 114 adjacent to the opposite side of the divided portion 113 from the second predetermined position Y,
The air volume is adjusted by an air volume adjusting device (not shown) so that the air volume of this portion becomes maximum. In addition, each divided portion is a divided portion 1 corresponding to the second predetermined position Y.
Each divided part 1 in order so that the air volume of 16 becomes the smallest
The air volume of 15, 116 is adjusted to be small.
In this embodiment, the divided portion 113 corresponds to only one moving tank 122 stopped at the first predetermined position X, and the other divided portions 114, 115 and 116 are 3, 4, respectively.
It corresponds to the four transfer tanks 122.

As a mechanism for intermittently driving the moving tank 122, it is conceivable that a ratchet mechanism is provided at the bottom of the moving tank 122 and the claws of the ratchet mechanism are fed one by one by expanding and contracting the piston of the air cylinder, for example. Further, in consideration of prevention of wear of the metal member and the like, when driving the moving tank 122, the vertical shaft 121 and each moving tank 122 may be entirely lifted and rotated in that state by a predetermined angle.

In the tank-moving type fluidized-bed drying apparatus 100 configured as described above, the moving tanks 122 have substantially the same size, and the side walls (second partition plates) of the moving tanks 122 are arranged.
The height of 126 is set so that the material to be dried 1 such as a granular kneaded material does not move over to it and move to the adjacent moving tank 122. At a first predetermined position X in the fluidized bed chamber 120, a predetermined amount of the material to be dried 1 is supplied to the moving tank 122 by the material to be dried supply chute 123, and the moving tank 122 containing the material to be dried 1 is a fluidized bed. The fluidized bed chamber 120 is intermittently circulated in the chamber 120 and circulates in the fluidized bed chamber 120 for a certain time. Then, at the second predetermined position Y in the fluidized bed chamber 120, the dried object 1 to be dried is discharged from the moving tank 122 by the suction nozzle 124. The warm air introduced into the lower blower chamber 110 flows into the upper fluidized bed chamber 120 through the filter 102, and winds up the article to be dried 1 inside each moving tank 122 and causes it to flow. At this time, the material to be dried 1 is dried with warm air. The blower chamber 110 is horizontally divided into a plurality of divided portions 113, 114, 115 and 116, and the divided portion 1 is divided by an air volume adjusting device (not shown).
Since the air volumes of 14, 115, and 116 are adjusted so as to decrease in sequence, even if the drying progresses and the weight of the material to be dried 1 becomes lighter, the material to be dried 1 crosses over the side wall 126 of the moving tank 122 and is adjacent. It does not move to the moving tank 122. As a result, all the particles of the material to be dried 1 stay in the fluidized bed chamber 120 for a certain period of time from being supplied to the moving tank 122 at the first predetermined position X and being discharged at the second predetermined position Y. , The drying time is constant, and it is dried uniformly. As a result, the dried particles do not include non-dried particles or viscous particles, and large particles having these particles as cores are not generated.

Next, a discharge mechanism for discharging the dried material to be dried from the moving tank 122 in the fluidized bed chamber 120 to the outside of the casing 101 will be described with reference to FIG. 2 showing a cross section thereof. In FIG. 2, the suction nozzle 124
Is a fixed portion 124 fixed to the ceiling portion of the housing 101.
a and a movable portion 124b suspended from the ceiling portion via a lever 124c. By the rotation of the lever 124c, the movable portion 124b moves to the first state shown by the solid line vertically below the fixed portion 124a and the moving tank 122.
The second state shown by the alternate long and short dash line retracted above can be taken. A three-way switching valve 141 is connected to the discharge nozzle 124 via a classifying device 144, one of the other two directions of the three-way switching valve is a cooling air intake 142, and the other one is a material to be dried. It is connected to the blower 143 via the recovery device 145.

When the moving tank 122 is stopped, as shown by the solid line in FIG. 2, the lever 124c rotates counterclockwise and the movable portion 124b is connected vertically below the fixed portion 124a. At this time, the three-way switching valve 141 connects the suction nozzle 124 and the blower 143, and the dried object 1 to be dried inside the moving tank 122 stopped at the second predetermined position Y is sucked by the suction nozzle 124. Then, it is discharged to the outside of the casing 101. The material to be dried 1 sucked by the suction nozzle 124 is classified by the classifying device 144 and then collected in the material to be dried collecting container 145. On the other hand, while the moving tank 122 is being driven, the lever 124c is rotated in the clockwise direction as shown by the alternate long and short dash line in FIG.
Is retracted above the moving tank 122 to prevent interference (collision) between the suction nozzle 124 and the moving tank 122. At the same time 3
The direction switching valve 141 includes the cooling air intake 142 and the blower 14
3 is connected to cool the blower 143. In general, when the material to be dried is pneumatically transported after the drying step, the temperature of the blower 143 is kept at the drying temperature (for example, 80 because the hot air is sucked as it is after the suction of the material to be dried is completed).
C)). However, by switching the three-way switching valve 141 to cool the blower 143, the temperature during transportation can be lowered to, for example, about 60 ° C., and the heat load on the blower 143 can be reduced.

In the above embodiment, the casing 101 has a substantially cylindrical shape, and the moving container is formed by partitioning the cylindrical container with a plurality of second partition plates 126 radially provided at equal angles from the vertical axis 121. Although the case where the 122 is intermittently rotated around the vertical axis 121 is illustrated, the present invention is not limited to this, and an independent moving tank may be configured to be conveyed on an oval orbit by a chain conveyor or the like. The same effect can be obtained.

[0020]

As described above, according to the present invention, a housing having a lower blowing chamber and an upper fluidized bed chamber vertically divided by a filter, and a predetermined warm air is supplied to the blowing chamber. And a plurality of moving tanks that are intermittently circulated in the fluidized bed chamber and have substantially the same size, and a predetermined amount in the moving tank that is provided at a first predetermined position in the fluidized bed chamber. A material to be dried for supplying the material to be dried, and a means to discharge the material to be dried, which is provided at a second predetermined position in the fluidized bed chamber and discharges the dried material from the moving tank, Since the air blowing chamber is divided into a plurality of parts in the horizontal direction and the air amount adjusting means for adjusting the air amount of each of the divided parts is provided, the air is supplied to the moving tank at the first predetermined position in the fluidized bed chamber. It Material to be dried was in, over a period of time to be discharged in a second predetermined position and around the fluidized bed in the chamber, during which is dried by hot air introduced into the blower chamber. Since all the particles of the material to be dried stay in the fluidized bed chamber for a certain period of time, the drying time becomes constant and the particles are uniformly dried. As a result, the dried particles do not include non-dried particles or viscous particles, and large particles having these particles as cores are not produced.

By making the casing substantially cylindrical and rotating the moving tank about a predetermined vertical axis, the structure of the circulation driving mechanism of the moving tank can be simplified. In addition, the structure of the moving tank can be simplified by partitioning the cylindrical container centering on the vertical axis with a plurality of partition plates radially provided at equal angles from the vertical axis to form the moving tank. Also, intermittent driving of the moving tank can be facilitated.

By setting the number of moving tanks to 4 to 20,
It is possible to reduce the time required for drying the material to be dried, that is, the ratio of the stop time of supply and discharge of the material to be dried to the time from when the material to be dried is supplied to the transfer tank and when it is discharged. There is not much difference from the case of continuous feeding in, and the connection with each process before and after can be made smooth. In addition, by directly using the bottom surface of the cylindrical container as a filter, the structure of the housing can be simplified, and the size and number of transfer tanks can be changed for each filter according to the type of material to be dried. . Further, by making the first predetermined position and the second predetermined position adjacent to each other via the partition plate, the drying target is not moved to the dried tank, the drying time is guaranteed, and There is no moving tank, and the moving tank can be used effectively.

Further, the blower chamber is divided into three or more parts, and hot air is not supplied to a part corresponding to the first predetermined position among the divided parts, so that the first predetermined position is covered. It is possible to prevent the dry matter from flowing back. In addition, by increasing the air volume of the portion adjacent to the second predetermined position of the portion corresponding to the first predetermined position, the fluidity of the material to be dried having the highest water content and the heavy weight is increased. , Can be efficiently dried. Further, since the portion corresponding to the second predetermined position is discharged by suction, the air volume of each divided portion is successively reduced so that the air volume becomes the smallest, whereby the drying progresses and the weight of the material to be dried is increased. Corresponding to the gradual decrease in weight, the material to be dried does not pass over the side wall of the transfer tank, and the air volume can be used efficiently according to the transition from the constant rate drying area to the decreasing rate drying area. ,
The residence time in the fluidized bed chamber of all the materials to be dried can be made constant. Further, among the divided parts, the part corresponding to the first predetermined position is made to correspond to only one moving tank stopped at the first predetermined position, and the other divided parts are moved by two or more respectively. By making it compatible with the tank,
The number of air volume adjusting means can be reduced, and the structure of the device can be simplified.

Further, the material to be dried discharge means is a suction nozzle provided on the ceiling part of the housing, and is retracted above the moving tank while the moving tank is being driven, so that the suction nozzle interferes with the moving tank ( Collision) can be prevented. Further, by discharging the material to be dried by suction, the lump is also sucked at the same time, and the lump does not remain at the bottom of the moving tank.
Also, a three-way switching valve is connected to the dried material discharging means, one of the other two directions of the three-way switching valve is used as a cooling air intake, and the other one is connected to a blower to drive the moving tank. The heat load on the blower can be reduced by switching the middle and three-way switching valve so as to connect the cooling air intake and the blower to cool the blower. The suction nozzle is composed of a fixed part fixed to the ceiling part of the housing and a movable part suspended from the ceiling part via a lever, and the movable part is connected vertically below the fixed part by the rotation of the lever. By taking the first state and the second state retracted above the moving tank, the mechanical structure of the suction nozzle can be simplified and the space occupied inside the housing can be reduced. . Further, by providing a classifying means between the dried material discharging means and the three-way switching valve and a dried material collecting means between the three-way switching valve and the blower, the steps of classifying and collecting the dried material can be performed. It can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of a tank moving type fluid drying apparatus of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of an ejection mechanism for ejecting a material to be dried to the outside of a housing.

FIG. 3 is a perspective view showing the configuration of a conventional fluidized-bed drying device.

[Explanation of symbols]

1: Material to be dried 10: Case 11: Filter 12: Dried matter supply port 13: Dried matter discharge port 14: Exhaust port 20: Blower chamber 21: First partition plate 22: Open hole 23: Shutter 30: Fluidized bed chamber 31: Second partition plate 100: tank moving type fluid drying apparatus 101: Case 102: Filter 110: Blower chamber 111: First partition plate 112: air duct 113: Divided part 114: Divided part 115: Divided part 116: Divided part 120: Fluidized bed chamber 121: vertical axis 122: Moving tank 123: Dry material supply chute 124: Suction nozzle 124a: fixed part 124b: movable part 124c: lever 125: exhaust port 126: Second partition plate (partition plate) 127: Third partition plate 141: 3-way switching valve 142: Cooling air intake 143: Blower 144: Classifier 145: Dried material recovery container

Continuation of the front page (56) References JP-A-48-24350 (JP, A) JP-B 43-12878 (JP, B1) JP-B 42-1833 (JP, B1) JP-B 35-17088 (JP) , B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) F26B 3/08 F26B 17/10 F26B 25/00 F26B 25/08

Claims (11)

(57) [Claims] 1. A housing having a lower blowing chamber and an upper fluidized bed chamber vertically divided by a filter, a blowing means for supplying a predetermined warm air to the blowing chamber, and the fluidized bed. It is driven to circulate intermittently inside the chamber,
A plurality of transfer tanks having substantially the same size, and provided at a first predetermined position in the fluidized bed chamber,
A material to be dried supply means for supplying a predetermined amount of the material to be dried to the moving tank; and a second predetermined position in the fluidized bed chamber,
An article-to-be-dried discharge means for discharging a dried article to be dried from the moving tank; and an air volume adjusting means for horizontally dividing the blower chamber into a plurality of parts and adjusting an air volume of each of the divided parts. comprising a said material to be dried discharge means is provided in the ceiling portion of the housing
It is a suction nozzle that moves during the movement of the moving tank.
A tank-moving type fluidized-bed dryer that retracts above the tank. 2. The tank-moving type fluidized-drying apparatus according to claim 1, wherein the casing is substantially cylindrical, and the moving tank is rotated around a predetermined vertical axis. 3. The moving tank is obtained by partitioning a cylindrical container having the vertical axis as a center by a plurality of partition walls provided at equal angles radially from the vertical axis, and each moving tank is partitioned. The tank-moving type fluidized-drying device according to claim 2, wherein the material to be dried is stored in each container. 4. The fluidized bed dryer of claim 3, wherein the moving tank is divided into 4 to 20 sections. 5. The tank moving type fluid drying apparatus according to claim 3, wherein the bottom surface of the cylindrical container is any one selected from a filter, a punching plate, a filter cloth, a sintered metal and a wire net. 6. The tank moving type fluid drying apparatus according to claim 1, wherein the first predetermined position and the second predetermined position are adjacent to each other via a partition plate. 7. The blower chamber is divided into three or more parts, and among the divided parts, the part corresponding to the first predetermined position is not supplied with warm air or has a small supply amount. , The portion of the portion corresponding to the first predetermined position adjacent to the side opposite to the second predetermined position has the largest air volume,
The tank moving type fluid drying apparatus according to claim 1, wherein the air volume of each of the divided portions is sequentially adjusted so that the air volume of the portion corresponding to the second predetermined position is minimized. 8. The part corresponding to the first predetermined position among the divided parts corresponds to only one moving tank stopped at the first predetermined position, and the other part is divided. 8. The tank moving type fluid drying apparatus according to claim 7, wherein each of the parts corresponds to two or more moving tanks. 9. A three-way switching valve is connected to the material to be dried discharge means, one of the other two directions of the three-way switching valve is a cooling air intake, and the other one is a blower. Connected,
Wherein during operation of the mobile tank, the three-way switching valve is connected with said said cooling wind intake blower, the vessel moves fluidized drying apparatus according to claim 1, wherein for cooling the blower. 10. The suction nozzle has a fixed portion fixed to a ceiling portion of the housing, and a movable portion suspended from the ceiling portion via a lever, and the movable portion is formed by rotation of the lever. 2. The tank moving type fluid drying apparatus according to claim 1 , wherein the tank moving type fluid drying apparatus has a first state in which it is connected vertically below the fixed portion and a second state in which it is retracted above the moving tank. 11. provided classification means between the material to be dried discharging means and the three-way switching valve, according to claim 9 in which a material to be dried collecting means between the blower and the three-way switching valve Fluidized dryer for moving tanks.