JP4327338B2 - Vibration dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration drying apparatus for drying an object to be dried (processed object) such as a powdery body or a wet cake to a uniform quality by vibration and heating.
[0002]
[Prior art]
Conventionally, a vibration drying apparatus as shown in FIG. 7 has been proposed. In the figure, reference numeral 101 denotes a dryer main body, which is supported on a support column 108 via an elastic body 107 such as an anti-vibration rubber. A cylindrical container 102 constituting the dryer main body 101 has a structure in which a jacket 103 covers a side wall (including a bottom part and an upper wall), and a center pillar 104 is erected at the center of the bottom part in the container 102, The to-be-dried material channel | path 105 is formed between these, and the to-be-dried material G moves here by vibration.
[0003]
An inlet 109 is provided at the upper part of the container 102, an outlet 111 is opened at the lower part through a discharge valve 110, and an exhaust outlet 112 is provided at the top, and is connected to the outside via a flexible tube 113. It is connected. In addition, a heat medium inlet 114 is provided at the upper part of the jacket 103 and a heat medium outlet 115 is provided at the lower part, which are connected to a heat medium source outside the system via flexible tubes 116 and 117, respectively.
[0004]
Further, two vibration generators 118 and 119 are provided on the both sides of the lower part of the dryer main body 101 in a direction in which two vibration generators 118 and 119 intersect so as to vibrate in an inclined direction along the peripheral wall of the container 102. The vibration generators 118 and 119 have weights attached to both ends of the rotating shafts of two motors that are inclined in a direction intersecting with both lower sides of the container 102 to cancel out the horizontal component force. The container 102 is made to rotate so that a linear vibration in an inclined direction along the peripheral wall is applied to the container 102.
[0005]
In the vibration drying apparatus configured as described above, an object to be dried is input from the input port 109, a heat medium is introduced into the jacket 103 from the heat medium inlet 114, and is discharged from the heat medium outlet 115. The object to be dried is heated and the vibration generators 118 and 119 are driven. The container 102 is vibrated by driving the vibration generators 118 and 119, and the object to be dried is vibrated in an inclined direction along the peripheral wall by the vibration of the container 102, and is slanted along the side wall with the container 102. The to-be-dried material channel | path 105 is cyclically moved along a surrounding wall, performing the spiral motion which lifts in a direction and falls. At this time, the object to be dried becomes a horizontal movement and a vertical jump movement, and drying and stirring are performed.
[0006]
[Problems to be solved by the invention]
However, in such a conventional vibration drying apparatus, the material to be dried contains water because the material to be dried moves in an annular manner through the passage of the material to be dried while moving in the horizontal direction and jumping in the vertical direction. The material to be dried moves together and becomes a nodule (block), which takes a long time to dry and the nodule. Therefore, uniform mixing, dispersion, and stirring may not be performed, and the center processing may be deteriorated. There is a problem that it does not become a dry product of uniform quality.
[0007]
In particular, when the object to be dried (processed object) is in the form of a powder, in a certain moisture range, the particles may be agglomerated (blocked) immediately before becoming a uniform powder, and if the drying proceeds as it is, it becomes a powder. Once such a block (block) is formed, there are problems such as it takes a long time to dry, and lumps remain in the powder, resulting in non-uniform quality.
Further, as shown in FIG. 7, since the vibration direction is as indicated by an arrow, when the object to be dried is powder, the object to be dried G is biased as shown in FIG. Therefore, there are problems such as non-uniform heat transfer and reduced heat transfer effect.
[0008]
The present invention has been made to solve such problems, and its purpose is to uniformly mix, disperse, and stir the material to be dried, to heat and dry uniformly, and to dry processing to a uniform quality. It is to provide a vibration drying apparatus.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the vibration drying apparatus of the present invention includes a container for drying an object to be dried, a jacket that surrounds the container and supplies a heat medium to the side wall of the container, and heat is applied to the jacket. A heating medium inlet and a heating medium outlet for introducing and discharging the medium, a center pillar standing from the center of the bottom in the container and forming a ring-shaped object passage between the container side wall, and vibration to the container a vibration generator which is provided so as, in a more becomes vibration drying device, on the bottom of the vessel, concentrically continuous vane plate around the center pillar is provided one or a plurality of rows, in the continuous vane plate A through hole is provided .
[0010]
Further, the vibration drying apparatus of the present invention includes a container for drying an object to be dried, a jacket that surrounds the container and supplies a heat medium to the side wall of the container, and introduces and discharges the heat medium into the jacket. A center pillar, which is provided between the inlet and outlet of the heating medium and the center of the bottom in the container and forms an annular material passage between the container side wall and the container. In the vibration drying device comprising the vibration generator and the vibration drying device, the continuous vane plate and the leaf plate or the short blade type guide plate are provided in combination on the bottom surface and / or the side wall in the container, or including the center pillar peripheral surface . The continuous vane plate is provided with a through hole .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the vibration drying apparatus of the present invention will be specifically described with reference to the drawings. FIG. 1 is a front view showing a part of the embodiment of the present invention in cross section, and FIG. 2 is an enlarged plan view showing the inside of the container of the embodiment of the present invention.
[0012]
In the figure, reference numeral 1 denotes a vibration drying device, a container 2 for drying an object to be dried (processed object), and a jacket 3 provided to surround the container 2 and supply a heat medium to the side wall of the container 2. An annular to-be-dried material passage 5 is provided between the heat medium inlet 14 and drain (heat medium outlet) 15 for introducing and discharging the heat medium to and from the jacket 3 and the side wall of the container 2 standing from the center of the bottom. The center pillar 4 to be formed, a continuous vane plate 16 provided on the bottom surface in the container 2, and vibration generators 18 and 19 provided so as to apply vibration to the container 2 are roughly constituted.
[0013]
The container 2 has a rigid cylindrical shape, and its outer periphery is surrounded by a jacket 3 having a heat medium inlet 14 and a drain (heat medium outlet) 15, and the container is heated by the heat medium supplied to the jacket 3 through the heat medium inlet 14. The outer periphery (side wall) of 2 is heated, and the object to be dried in the container 2 is heated and dried. The container 2 is supported on a support column 8 via an elastic body 7 such as a vibration-proof rubber, and the support column 8 is erected on the abutment 6. The abutment 6 is provided with a spring 13 for buffering and vibration isolation.
[0014]
An input port 9 and an exhaust port 12 for an object to be dried are provided at the top of the container 2, and an exhaust port 11 for the object to be dried is provided at the bottom of the container 2 via an exhaust valve 10. A decompression device may be connected to the exhaust port 12 to decompress the inside of the container 2. Moreover, the upper part of the container 2 may be a lid that can be freely opened and closed. In this case, an input port 9 and an exhaust port 12 for an object to be dried are provided on the lid.
[0015]
Since the annular pillar passage 5 is formed between the center pillar 4 standing at the center of the bottom in the container 2 and the side wall, it is preferable to supply a heat medium to the center pillar 4 as well. . When a heating medium is supplied to the center pillar 4, it is possible to further promote the heat drying of the object to be dried that moves in the object passage 5. In this embodiment, an example in which a heat medium can be supplied to the center pillar 4 is shown. The heat medium flowing in from the heat medium inlet 14 passes through the center pillar 4 via the jacket 3 and is drained (heat medium outlet). ) It flows out of 15.
[0016]
Further, continuous vane plates 16 and 16 are provided on the bottom surface in the container 2 on a concentric circle with the center pillar 4 as the center. In this example, the continuous vane plates 16 and 16 are shown in two rows, but this may be one row or three or more rows. The continuous vane plate 16 is provided with an appropriate number of through holes 17 at the lower end. The through-hole 17 is used to remove powder when the material to be dried is powder. The height of the continuous vane plate 16 is determined in consideration of the type and strength of the object to be dried.
[0017]
Further, the two vibration generators 18 and 19 provided on both sides below the container 2 are provided in directions intersecting each other so as to vibrate in the inclined direction along the peripheral wall of the container 2. In other words, the vibration generators 18 and 19 attach weights to both ends of the rotating shaft of the motor that is inclined and attached to both sides of the lower portion of the container 2 to cancel the horizontal component force. The container 2 is applied with a linear vibration in an inclined direction along the peripheral wall by the respective weights.
[0018]
In the vibration drying apparatus 1 configured as described above, an object to be dried is introduced into the container 2 from the inlet 9, a heat medium is introduced into the jacket 3 and the center pillar 4 from the heat medium inlet 14, and drain (heat The material to be dried is discharged indirectly from the medium outlet 15 and indirectly heated in the container 2.
[0019]
When the vibration generators 18 and 19 are driven in this state, the vibration generators 18 and 19 respectively apply vibrations in a certain inclination direction to the container 2 to the dried material passage 5. The object to be dried is vibrated in an inclined direction along the peripheral wall by the vibration of the container 2, and is lifted obliquely upward along the side wall with the container 2, while performing a spiral motion that descends toward the center of the container 2. The to-be-dried material passage 5 moves in an annular shape around the center pillar 4.
[0020]
At this time, in this invention, since the continuous vane plate 16 is provided on the concentric circle centering on the center pillar 4, the to-be-dried material channel | path 5 is divided | segmented, and between the center pillar 4 and the continuous vane plate 16, it continues. Since the space between the vane plates 16 and 16 and between the continuous vane plate 16 and the side wall of the container 2 is a passage for the material to be dried, the material to be dried in the passage is the center pillar 4, the continuous vane plates 16 and 16, and the container. 2. A spiral movement that rises and falls along the side wall of 2. Therefore, as shown in FIG. 7, the material to be dried is always mixed, dispersed, and stirred at a uniform level, and is heated uniformly in synergy with the effect of heat transfer from the continuous vane plate 16. Therefore, it is possible to perform a drying process with uniform quality in a short time.
[0021]
3 and 4 are a front view of a partial cross section showing another embodiment of the present invention and an enlarged plan view showing the inside of the container. In this embodiment, leaf plates 21 are provided intermittently on the bottom surface and side walls in the container 2, and the other components are the same as those of the above embodiment, so the same components are denoted by the same reference numerals. Detailed description is omitted.
[0022]
The leaf plates 21 may be linear or arcuate, and are arranged intermittently on concentric circles centered on the center pillar 4 on the bottom surface of the container 2 and regularly on the side walls. Even if they are arranged in a row, they may be provided in an irregular manner. The number, height, and length of the leaf plates 21 are determined in consideration of the type and strength of the object to be dried.
[0023]
In the present invention, since the leaf plate 21 is provided, the object to be dried is lifted obliquely upward along the side wall with the container 2 by the vibration of the container 2 and descends toward the center of the container 2. When moving the object to be dried 5 around the center pillar 4 while moving, the object to be dried hits the leaf plate 21 and performs a spiral motion. Accordingly, the material to be dried is dispersed by the leaf plate 21 and becomes a uniform level, and is uniformly transferred to heat, and is also transferred from the leaf plate 21, so that the heat transfer area is increased and the heat transfer effect is improved. A drying process can be performed to a uniform quality in a short time.
[0024]
5 and 6 are a partial cross-sectional front view and still another plan view showing still another embodiment of the present invention. In this embodiment, a short blade guide plate 22 is provided on the bottom surface, the side wall, and the outer peripheral surface of the center pillar 4 in the container 2, and the other components are the same as those in the above embodiment, so that the same components are used. Are denoted by the same reference numerals, and detailed description thereof is omitted. This example is optimally applied when the material to be dried is a liquid material.
[0025]
The short wing guide plate 22 is located on a concentric circle centered on the center pillar 4 on the bottom surface in the container 2 and is arranged in a tangential direction, and on the side wall and the outer peripheral surface of the center pillar 4. Are provided regularly or irregularly along the peripheral surface. The number, height, length, and the like of the short blade guide plate 22 are selected in consideration of the type and strength of the object to be dried.
[0026]
Thus, in the present invention, since the short blade type guide plate 22 is provided, the material to be dried is lifted obliquely upward along the side wall with the container 2 due to the vibration of the container 2 and descends toward the center of the container 2. When the object to be dried 5 is moved annularly around the center pillar 4 while performing a spiral motion, the object to be dried performs a spiral motion while colliding with the short blade guide plate 22. Therefore, the material to be dried is dispersed and agitated by the short blade type guide plate 22 and is uniformly transferred to the heat, and since the heat is transferred also from the short blade type guide plate 22, the heat transfer area is increased and the heat transfer effect is also improved. In other words, the drying process can be performed to a uniform quality in a short time. In particular, the short blade type guide plate is provided in a tangential direction on a concentric circle with the center pillar 4 as the center, and is therefore optimal for the drying treatment of the liquid material.
[0027]
Further, the present invention may be configured by selecting and combining from the above-described continuous vane plate 16, leaf plate 21, and short blade type guide plate 22, and in this case as well, the same operations and effects as in the above-described embodiment are possible. Play.
It should be noted that the present invention is not limited to the continuous vane plate 16, the leaf plate 21, and the short blade type guide plate 22, and the present invention is intended to be dried in the container 2 when the container 2 is vibrated. In this case, it is sufficient to use a plurality of protrusions in which the object to be dried collides and is dispersed and prevented from being biased, and various modifications are allowed without departing from the scope of the present invention.
[0028]
【The invention's effect】
As described above in detail, the present invention includes the bottom surface and / or the side wall in the container, or the peripheral surface of the center pillar. Is provided with a plurality of continuous vane plates, or a combination of a continuous vane plate and a leaf plate or an airfoil guide plate, and the continuous vane plate is provided with a through-hole. When the container moves due to the vibration of the container, it collides with a plurality of projecting bodies and is distributed to prevent unevenness, to a uniform level, to transfer heat uniformly, and from the continuous vane plate and leaf plate or airfoil guide plate. Since it is heated, the heat transfer area is increased, the heat transfer effect is improved, and the drying process can be performed with a uniform quality in a short time.
Moreover, since the continuous vane plate is provided with a through hole, the powder can be easily removed even when the material to be dried is powder .
[0029]
In addition, when the object to be dried moves, it collides with the protrusions and is dispersed and stirred, so even the powdery object to be dried does not become a block (block), has less fouling, and is uniform in a short time. Of high quality.
[Brief description of the drawings]
FIG. 1 is a front view showing a part of an embodiment of the present invention in cross section.
FIG. 2 is an enlarged plan view showing the inside of the container according to the embodiment of the present invention in section.
FIG. 3 is a partial sectional front view showing another embodiment of the present invention.
FIG. 4 is an enlarged plan view showing the inside of a container according to another embodiment of the present invention.
FIG. 5 is a partially sectional front view showing still another embodiment of the present invention.
FIG. 6 is an enlarged plan view showing the inside of a container according to still another embodiment of the present invention.
FIG. 7 is a front view showing a part of a conventional example in section.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vibration drying apparatus 2 Container 3 Jacket 4 Center pillar 5 Dried object channel | path 9 Input port 11 Outlet port 12 Exhaust port 14 Heat medium inlet 15 Drain (heat medium outlet)
16 Continuous vane plate 17 Through hole 18, 19 Vibration generator 21 Leaf plate 22 Short blade guide plate

Claims (2)

A container for drying an object to be dried, a jacket provided to surround the container and supply a heat medium to the side wall of the container, a heat medium inlet and a heat medium outlet for introducing and discharging the heat medium to and from the jacket, A vibration drying apparatus comprising: a center pillar standing from the center of the bottom in the container and forming an annular material passage between the container side wall and a vibration generator provided to vibrate the container. The continuous vane plate is provided in a row or a plurality of rows concentrically around the center pillar on the bottom surface of the container, and the continuous vane plate is provided with through holes. Equipment . A container for drying an object to be dried, a jacket provided to surround the container and supply a heat medium to the side wall of the container, a heat medium inlet and a heat medium outlet for introducing and discharging the heat medium to and from the jacket, A vibration drying apparatus comprising: a center pillar standing from the center of the bottom in the container and forming an annular material passage between the container side wall and a vibration generator provided to vibrate the container. In this case, a continuous vane plate and a leaf plate or a short blade type guide plate are provided in combination on the bottom surface and / or side wall in the container, or on the peripheral surface of the center pillar , and the continuous vane plate is provided with a through hole. A vibration drying apparatus characterized by comprising:

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