JP2002031481A - Vibration dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration dryer for treating to dry in a uniform quality by uniformly mixing, dispersing and agitating a material to be dried, and uniformly heating and drying the material. SOLUTION: The vibration dryer comprises a container for drying the material to be dried, a jacket provided to surround the container and to supply a heating medium to the sidewall of the container, a heating medium inlet and a heating medium outlet for introducing and exhausting the medium to and from the jacket, a center pillar for forming an annular material to be dried passage between a center of a bottom and the sidewall of the container stood at the center in the container, and a vibration generator provided to give a vibration to the container. The dryer also comprises a plurality of protrusions provided at the bottom and/or the sidewall of the container or together with the peripheral surface of the center pillar, to collide the material in the container to disperse the material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration drying apparatus for drying an object to be dried (object to be processed) such as a powdery substance, a wet cake and the like to a uniform quality by vibration and heating.

[0002]

2. Description of the Related Art Conventionally, a vibration drying apparatus as shown in FIG. 7 has been proposed. In FIG. 1, reference numeral 101 denotes a dryer main body, which is supported on a support 108 via an elastic body 107 such as a vibration-proof rubber. The cylindrical container 102 constituting the dryer main body 101 has a structure in which a side wall (including a bottom and an upper wall) is covered by a jacket 103, and a center pillar 104 is erected at the center of the bottom in the container 102. An annular drying object passage 105 is formed therebetween, and the drying object G moves by vibration.

[0003] An inlet 109 is provided at an upper portion of the container 102, an outlet 111 is opened at a lower portion through a discharge valve 110, and an outlet 112 is provided at a top portion. It is connected outside the system.
A heating medium inlet 114 is provided at an upper portion of the jacket 103, and a heating medium outlet 115 is provided at a lower portion. The heating medium outlet 114 is connected to a heating medium source outside the system via flexible tubes 116 and 117, respectively.

Further, two vibration generators 118 and 119 are provided on both lower sides of the dryer main body 101 so as to vibrate in an inclined direction along the peripheral wall of the container 102 in a direction intersecting with each other. The vibration generators 118 and 11
9 attaches weights to both ends of the rotating shafts of two motors which are attached to the lower side of the container 102 in a direction intersecting the lower sides thereof, and rotates them so as to cancel the horizontal component. The weight applies linear vibration to the container 102 in an inclined direction along the peripheral wall thereof.

[0005] In the vibration drying apparatus having the above-described configuration, the material to be dried is introduced through the introduction port 109, the heating medium is introduced into the jacket 103 from the heating medium inlet 114, and the heating medium outlet 1 is introduced.
After being discharged from 15, the object to be dried in the container 102 is heated and the vibration generators 118 and 119 are driven. The container 102 is driven by the driving of the vibration generators 118 and 119.
The object to be dried is given a vibration in an inclined direction along the peripheral wall by the vibration of the
2 while being swung upward in the obliquely upward direction along the side wall 2 and descending.
Move in a ring. At this time, the object to be dried is moved in the horizontal direction and jumps in the vertical direction, and drying and stirring are performed.

[0006]

However, in such a conventional vibration drying apparatus, the material to be dried moves in a circular shape in the passage of the material to be dried while moving horizontally and jumping up and down. If the dried material contains water, the material to be dried co-migrate and move together to form a block (block), which may take a long time to dry. There is a problem that the treatment of the central part may be deteriorated and a dried product of uniform quality may not be obtained.

In particular, when the object to be dried (object to be processed) is in a powder form, in a certain moisture range, particles may be formed into blocks (blocks) immediately before a uniform powder is obtained. However, once such a block (block) is formed, there are problems that drying takes a long time, lumps remain in the powder, and the quality becomes uneven. FIG.
As shown in FIG. 7, since the vibration direction is as shown by the 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 that the heat transfer becomes uneven and the heat transfer effect decreases.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and has as its object to uniformly mix, disperse, and stir the materials to be dried, and to uniformly heat and dry them to obtain uniform quality. Another object of the present invention is to provide a vibration drying apparatus for performing a drying process.

[0009]

In order to solve the above-mentioned problems, a vibration drying apparatus according to the present invention is provided with a container for drying an object to be dried, and a container surrounding the container and supplying a heating medium to a side wall of the container. A jacket, a heating medium inlet and a heating medium outlet for introducing and discharging a heating medium into and from the jacket, and a center erecting from the center of the bottom in the container and forming an annular passage for the material to be dried between the container side wall. In a vibration drying device comprising a pillar, a vibration generating device provided to apply vibration to the container, and a vibration drying device comprising: a bottom surface and / or a side wall in the container; It is characterized in that a plurality of protrusions are provided, which are scattered by collision of the material to be dried in the container when given.

[0010] Further, the vibration drying apparatus of the present invention comprises a container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to the side wall of the container, and a heat medium for the jacket. A heat medium inlet and a heat medium outlet for introduction and discharge, a center pillar which stands upright from the center of the bottom in the vessel and forms an annular passage for the material to be dried between the vessel side wall, and vibrates the vessel. In the vibration drying device provided with the provided vibration generating device, one or more rows of continuous vane plates are provided on the bottom surface in the container on a concentric circle centered on the center pillar.

Further, the vibration drying apparatus of the present invention is characterized in that the continuous vane plate is provided with a through hole.

Further, the vibration drying apparatus of the present invention comprises a container for drying a material to be dried, a jacket surrounding the container and provided to supply a heat medium to the side wall of the container, and a heat medium for the jacket. A heat medium inlet and a heat medium outlet for introduction and discharge, a center pillar which stands upright from the center of the bottom in the vessel and forms an annular passage for the material to be dried between the vessel side wall, and vibrates the vessel. In the vibration drying device provided with the provided vibration generating device, a linear and / or arc-shaped leaf plate is intermittently provided on the bottom surface and / or side wall in the container or on the center pillar peripheral surface. It is characterized by being lined up.

Further, in the vibration drying apparatus according to the present invention, the leaf plate is intermittently arranged on the bottom surface on a concentric circle centered on the center pillar, and is regularly or irregularly formed on the side wall. It is characterized by being provided in a special way.

Further, the vibration drying apparatus of the present invention comprises a container for drying a material to be dried, a jacket surrounding the container and provided to supply a heat medium to the side wall of the container, and a heat medium for the jacket. A heat medium inlet and a heat medium outlet for introduction and discharge, a center pillar which stands upright from the center of the bottom in the vessel and forms an annular passage for the material to be dried between the vessel side wall, and vibrates the vessel. In the vibration drying device provided with the provided vibration generating device, a short-wing type guide plate is provided on the bottom surface and / or the side wall in the container or on the peripheral surface of the center pillar. .

Further, in the vibration drying apparatus according to the present invention, the short-wing type guide plate is concentrically located around the center pillar on the bottom surface, is arranged in a row in the tangential direction, and is provided on the side wall. Are characterized by being provided regularly or irregularly along the inner peripheral surface.

The vibration drying apparatus of the present invention further comprises a container for drying the object to be dried, a jacket surrounding the container and provided to supply a heat medium to the side wall of the container, and a heat medium for the jacket. A heat medium inlet and a heat medium outlet for introduction and discharge, a center pillar which stands upright from the center of the bottom in the vessel and forms an annular passage for the material to be dried between the vessel side wall, and vibrates the vessel. In the provided vibration generating device and the vibration drying device, the continuous vane plate, the leaf plate, and the short wing type guide plate, including the bottom surface and / or the side wall in the container or the peripheral surface of the center pillar, are provided. It is characterized by being selected and provided in combination.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vibration drying apparatus according to the present invention. FIG. 1 is a front view showing a part of an embodiment of the present invention in cross section, and FIG. 2 is an enlarged plan view showing the inside of a container according to the embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a vibration drying device;
A container 2 for drying the object to be dried (object to be processed), a jacket 3 surrounding the container 2 and provided to supply a heat medium to the side wall of the container 2, and a heat medium is introduced into and discharged from the jacket 3. Heat medium inlet 14 and drain (heat medium outlet) 15
A center pillar 4 erected from the bottom center in the container 2 and forming an annular drying object passage 5 with a side wall; a continuous vane plate 16 provided on a bottom surface in the container 2; It is roughly constituted by vibration generators 18 and 19 provided to apply vibration to the container 2.

The container 2 has a rigid cylindrical shape, and its outer periphery has a heat medium inlet 1.
The outer circumference (side wall) of the container 2 is heated by the heat medium supplied to the jacket 3 through the heat medium inlet 14 and is surrounded by the jacket 3 having the heat medium 4 and a drain (heat medium outlet) 15. The object to be dried is dried by heating. This container 2
Is supported on a support 8 via an elastic body 7 such as a vibration-proof rubber, and the support 8 is erected on the support 6. The support 6 is provided with a spring 13 for cushioning and vibration proof.

An inlet 9 and an exhaust port 12 for the object to be dried are provided at the top of the container 2, and an outlet 11 for the object to be dried is provided at the bottom of the container 2 via a discharge valve 10. I have. A pressure reducing device may be connected to the exhaust port 12 to reduce the pressure inside the container 2. Moreover, the upper part of the container 2 may be a lid that can be opened and closed. In this case, an inlet 9 and an exhaust port 12 for the material to be dried are provided on the lid.

An annular drying material passage 5 is formed between the center pillar 4 erected at the center of the bottom of the container 2 and the side wall, so that the heating medium is also supplied to the center pillar 4. Is preferred. When the heating medium is supplied to the center pillar 4, the drying of the object to be dried moving in the passage 5 for the object to be dried can be further promoted. In this embodiment, an example in which the heat medium can be supplied to the center pillar 4 is shown, and the heat medium flowing from the heat medium inlet 14 passes through the center pillar 4 via the jacket 3 and drains (heat medium outlet). )
Flow out of 15.

A continuous vane plate 16 is formed on a bottom surface in the container 2 on a concentric circle centered on the center pillar 4.
16 are provided. In this example, the continuous vane plates 16, 16 are shown in two rows, but this means that
There may be more than one row. The continuous vane plate 16 has an appropriate number of through holes 17 at the lower end. This through hole 1
Numeral 7 is for removing powder when the material to be dried is like powder. The height of the continuous vane plate 16 is determined in consideration of the type and strength of the material to be dried.

Further, 2 provided on both sides below the container 2
The individual vibration generators 18 and 19 are provided in directions intersecting each other so as to apply vibration in an inclined direction along the peripheral wall of the container 2. That is, the vibration generators 18 and 19 are configured such that weights are attached to both ends of a rotating shaft of a motor which is attached to the lower side of the container 2 in a direction intersecting with each other so as to cancel the horizontal component. So that the weights apply linear vibration to the container 2 in the inclined direction along the peripheral wall thereof.

In the vibration drying apparatus 1 configured as described above, the material to be dried is charged into the container 2 from the charging port 9.
A heat medium is introduced into the jacket 3 and the center pillar 4 from a heat medium inlet 14 and discharged from a drain (heat medium outlet) 15.
The object to be dried in the container 2 is indirectly heated.

In this state, the vibration generators 18, 1
When the driving device 9 is driven, the vibration generators 18 and 19 apply vibrations in a constant inclination direction to the container 2 with respect to the drying object passage 5. Due to the vibration of the container 2, the material to be dried is given a vibration in an inclined direction along the peripheral wall, lifts up obliquely along the side wall with the container 2, and performs a spiral motion descending toward the center of the container 2. The to-be-dried material passage 5 is circularly moved around the center pillar 4.

At this time, according to the present invention, the center pillar 4
The continuous vane plate 16 is provided on a concentric circle centered at the center, and the passage 5 to be dried is divided, and the space between the center pillar 4 and the continuous vane plate 16, the space between the continuous vane plates 16 and 16, and the continuous vane Plate 16
The passage between the container and the side wall of the container 2 forms a passage for the object to be dried. I do. Therefore, the material to be dried is always mixed at a uniform level without unevenness as shown in FIG.
Dispersion and agitation are performed, and the uniform heating is achieved in synergy with the effect of heat transfer from the continuous vane plate 16, and drying can be performed to uniform quality in a short time.

FIGS. 3 and 4 are a front view, partially in section, showing another embodiment of the present invention and an enlarged plan view showing the inside of the container. In this embodiment, a leaf plate 21 is provided intermittently on the bottom and side walls in the container 2.
The other components are the same as those of the above-described embodiment, and the same components are denoted by the same reference numerals, and detailed description is omitted.

The leaf plates 21 may be linear or arcuate. The leaf plates 21 are intermittently arranged on the bottom surface of the container 2 on a concentric circle centered on the center pillar 4, and are arranged side by side on the side walls. May be arranged at regular intervals, or may be provided at irregular intervals. 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.

In the present invention, however, since the leaf plate 21 is provided, the object to be dried is lifted obliquely upward along the side wall of the container 2 due to the vibration of the container 2, and moves toward the center of the container 2. When the object to be dried is circularly moved around the center pillar 4 while performing the descending spiral motion, the object to be dried performs a spiral motion while hitting (colliding) with the leaf plate 21. Therefore, the material to be dried is dispersed by the leaf plate 21 and is at a uniform level, and is uniformly transferred. Further, since the heat is also transferred from the leaf plate 21, the heat transfer area is increased, and the heat transfer effect is also improved. Drying can be performed to uniform quality in a short time.

FIGS. 5 and 6 are a front view, partially in section, showing a further embodiment of the present invention and a plan view showing the inside of the container. In this embodiment, a short-wing type guide plate 22 is provided on a bottom surface, a side wall, and an outer peripheral surface of a center pillar 4 in a container 2. Are denoted by the same reference numerals, and detailed description is omitted. This embodiment is optimally applied when the material to be dried is a liquid material.

The short-wing type guide plate 22 is provided in the container 2
The inner bottom surface is located on a concentric circle centered on the center pillar 4 and arranged in a line tangential to the center pillar 4. The side wall and the outer peripheral surface of the center pillar 4 are regularly or irregularly arranged along the peripheral surface. Provided regularly. The number, height, length, and the like of the short-wing type guide plates 22 are optimally selected in consideration of the type and strength of the material to be dried.

According to the present invention, however, since the short-wing type guide plate 22 is provided, the object to be dried is lifted obliquely upward along the side wall with the container 2 due to the vibration of the container 2, and is directed toward the center of the container 2. When the object to be dried moves circularly around the center pillar 4 while performing a spiral motion descending, the object to be dried performs a spiral motion while colliding with the short-wing type guide plate 22. Therefore, the material to be dried is dispersed and agitated by the short-wing type guide plate 22, and is uniformly transferred. The heat is also transmitted from the short-wing type guide plate 22, so that the heat transfer area is increased and the heat transfer effect is also improved. As a result, the drying process can be performed to a uniform quality in a short time.
In particular, since the short-wing type guide plate is provided in a tangential direction on a concentric circle centered on the center pillar 4, the short-wing type guide plate is most suitable for drying the liquid material.

Further, the present invention may be constituted by selecting and combining the above-mentioned continuous vane plate 16, leaf plate 21 and short-wing type guide plate 22. It works and works. Note that the continuous vane plate 16, the leaf plate 21, and the short-wing type guide plate 2 in the above-described embodiment are used.
However, the present invention is not limited to this, and when the container 2 is vibrated, the object to be dried in the container 2 moves. Any number of protrusions may be used, and various modifications may be made without departing from the scope of the invention.

[0034]

As described in detail above, the present invention provides
A plurality of projections, such as a continuous shape, on the bottom surface and / or the side wall in the container, or including the peripheral surface of the center pillar, in which when the object to be dried in the container collides and is vibrated when vibrated, the material is dispersed and prevented from being biased. Since the vane plate, leaf plate, wing type guide plate and their combination are provided,
When the object to be dried is moved by the vibration of the container, it collides with a plurality of protrusions and is dispersed to prevent unevenness, so that a uniform level is obtained, and the heat is uniformly transferred. And the heat transfer effect is also improved, and the drying treatment can be performed to a uniform quality in a short time.

In addition, since the material to be dried collides with the protruding body during the movement and is dispersed and stirred, even the powdery material to be dried does not form a block, has little lump, and has a short time. , And a uniform quality drying process can be performed.

[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 a cross section of the inside of the container according to the embodiment of the present invention.

FIG. 3 is a partial cross-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 front view of a partial cross section 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 cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration drying apparatus 2 Container 3 Jacket 4 Center pillar 5 Drying object passage 9 Input port 11 Discharge 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 wing type guide plate

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Eiichi Miura 2-4-1, Shirooka, Nagaoka City, Niigata Prefecture Tamagawa Machinery Co., Ltd. Nagaoka Plant F-term (reference) 3L113 AA07 AB02 AB05 AC05 AC15 AC19 AC58 AC61 AC67 AC71 BA02 BA36 DA24 4D059 AA00 BD11 BD19 BD24 BJ20 BK30

Claims (8)

[Claims] 1. A container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to a side wall of the container, a heat medium inlet for introducing and discharging the heat medium to and from the jacket, and A heat medium outlet, a center pillar that stands upright from the bottom center in the container and forms an annular drying object passage between the container side wall, and a vibration generator that is provided to apply vibration to the container, In a vibration drying apparatus comprising: a plurality of protrusions on which an object to be dried in a container collides and is dispersed when the container is vibrated, including a bottom surface and / or a side wall in the container or a peripheral surface of a center pillar. A vibration drying device characterized by having a body. 2. A container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to a side wall of the container, a heat medium inlet for introducing and discharging the heat medium to and from the jacket, and A heat medium outlet, a center pillar that stands upright from the bottom center in the container and forms an annular drying object passage between the container side wall, and a vibration generator that is provided to apply vibration to the container, A vibratory drying device comprising: a vibrating drying device comprising a row or a plurality of concentric continuous vane plates centered on a center pillar provided on a bottom surface in a container. 3. The vibration drying apparatus according to claim 2, wherein a through hole is provided in the continuous vane plate. 4. A container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to the side wall of the container, a heat medium inlet for introducing and discharging the heat medium to and from the jacket, and A heat medium outlet, a center pillar that stands upright from the bottom center in the container and forms an annular drying object passage between the container side wall, and a vibration generator that is provided to apply vibration to the container, A vibratory drying apparatus comprising: a linear and / or arc-shaped leaf plate intermittently arranged on a bottom surface and / or a side wall in a container or on a peripheral surface of a center pillar. And a vibration drying device. 5. The leaf plate is arranged on a bottom surface on a concentric circle centered on a center pillar and arranged intermittently, and on a side wall, is regularly or irregularly formed. The vibration drying apparatus according to claim 4, wherein 6. A container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to a side wall of the container, a heat medium inlet for introducing and discharging the heat medium to and from the jacket, and A heat medium outlet, a center pillar that stands upright from the bottom center in the container and forms an annular drying object passage between the container side wall, and a vibration generator that is provided to apply vibration to the container, A vibration drying apparatus comprising: a short-wing type guide plate provided on a bottom surface and / or a side wall in a container or on a peripheral surface of a center pillar. 7. The short-wing type guide plate is located on a concentric circle centered on a center pillar on a bottom surface, is arranged in a line tangentially to the center pillar, and is regularly formed on an inner peripheral surface on a side wall. The vibration drying apparatus according to claim 6, wherein the vibration drying apparatus is provided regularly or irregularly. 8. A container for drying an object to be dried, a jacket surrounding the container and provided to supply a heat medium to a side wall of the container, a heat medium inlet for introducing and discharging the heat medium to and from the jacket, and A heat medium outlet, a center pillar that stands upright from the bottom center in the container and forms an annular drying object passage between the container side wall, and a vibration generator that is provided to apply vibration to the container, A continuous drying plate, a leaf plate, and a short-wing type guide plate are provided on the bottom surface and / or the side wall in the container, or including the center pillar peripheral surface, in combination therewith. A vibration drying device, characterized in that: