JP2000310484A - Vibration drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly mix, distribute and agitate a material to be dried, uniformly heat and dry it and obtain a dried product of uniform quality by providing agitating vanes for forcedly agitating the material to be dried. SOLUTION: A material to be dried is fed to a container 2 from a feed port 9, and a heating medium is introduced to a cylindrical body 4 and a jacket 3 from a heating medium inlet 14 and exausted from a heating medium outlet 15 to indirectly heat the material to be dried in the container 2. Under this state, when vibration generators 18 and 19 are driven, the vibration of a prescribed inclined direction with respect to a passage 5 of the material to be dried. This vibration causes the material to be dried to be vibrated in an inclined direction along a peripheral wall, so that the material is raised diagonally upward along the side wall of the container 2, performs a volute movement in which the material to be dried falls along the central cylindrical body 4 of the container 2 and moves in an annular form about the cylindrical body 4 in the passage 5 of the material to be dried. At this time, the material to be dried passing agitating vanes 22 is forcedly agitated by the agitating vanes 22. As a result, the material to be dried is horizontally and vertically moved and forcedly agitated, and then dried.

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. 4 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 with a jacket 103, and a cylindrical body 104 is erected at the center of the bottom in the container 102. An annular drying object passage 105 is formed therebetween, and the object to be dried 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 moving upward along the side wall of the container 102 and descending along the cylindrical body 104 at the center of the container 102, while moving in a circular manner in the passage 105 to be dried along the peripheral wall. 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 moisture, the material to be dried co-move and move together to form a block (block), which takes 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.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to uniformly mix, disperse, and agitate a material to be dried, and to uniformly heat and dry the material to be dried to obtain a uniform quality. And to provide a vibration drying apparatus for producing a dried product.

[0009]

In order to achieve the above object, 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 to and from the jacket, and a cylindrical body erecting from the center of the bottom in the container and forming an annular passage for the material to be dried between the side wall and the body. A vibration generator provided to apply vibration to the container; and a rotation shaft connected to and driven by a motor provided outside the container, the vibration generator being located in a passage of a material to be dried in the container. And a stirring blade provided as such.

[0010]

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, FIG. 2 is a plan view showing an embodiment of the present invention, and FIG. 3 is a partial cross sectional view showing a lid portion.

In FIG. 1, reference numeral 1 denotes a vibration drying device,
A container 2 for drying the object to be dried, 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 inlet 14 for introducing and discharging the heat medium to and from the jacket 3 And a heat medium outlet 15, a cylindrical body 4 erected from the center of the bottom in the vessel 2 and forming an annular passage 5 to be dried between a side wall thereof, and provided to apply vibration to the vessel 2. Vibration generators 18 and 19 are provided on a rotating shaft 21 which is connected to and driven by a motor 20 provided outside the container 2.
And a stirring blade 22 provided at a position.

The container 2 has a rigid cylindrical shape, and its outer periphery has a heat medium inlet 1.
4 and a jacket 3 having a heating medium outlet 15, the side wall of the container 2 is heated by the heating medium supplied to the jacket 3 through the heating medium inlet 14, and the object to be dried in the container 2 is thermally dried. Is done. The container 2 is supported on a support 8 via an elastic body 7 such as a vibration-proof rubber.
It is erected on the abutment 23. The support 23 is provided with a spring 24 for buffering and vibration proof.

The upper part of the container 2 is a detachable lid 25, which is provided with an exhaust port 12 and an inlet 9 for a material to be dried, and a discharge valve 10 at the bottom of the container 2.
An exhaust port 11 for the object to be dried is provided through the opening. A pressure reducing device may be connected to the exhaust port 12 to reduce the pressure inside the container 2. Reference numeral 26 in FIG. 3 is a bellows joint for vacuum suction for that purpose.

Since an annular passage 5 is formed between the cylindrical body 4 and the side wall of the cylindrical body 4 erected at the center of the bottom of the container 2, even if the cylindrical body 4 is provided with a heating medium jacket. Good.
If a jacket is provided on the cylindrical body 4, the drying of the object to be dried moving in the object passage 5 can be further promoted by heating. In the embodiment shown in FIG. 1, an example in which the cylindrical body 4 is used as a jacket is shown, and the heat medium flowing from the heat medium inlet 14 passes through the inside of the cylindrical body 4, which also serves as a jacket, and passes through the jacket 3. It flows out from the medium outlet 15.

A stirring blade 22 provided in the passage 2 in the container 2 stirs the drying object moving in the passage of the drying object. It is fixed to the shaft 21 and rotates.

[0016] 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 the inclined direction along the peripheral wall of the container 2. That is, the vibration generating devices 18 and 19
Weights are attached to both ends of a rotating shaft of a motor which is attached to the lower sides of the motor at an angle in a direction crossing each other, and are rotated so as to cancel the horizontal component force. To give a linear vibration in the inclined direction along the peripheral wall.

In the illustrated embodiment, a lid lifting device 27 for the lid 25 of the container 2 is provided. The lid lifting device 27 may be a conventionally known means. In this example, an arm member 29 extends above the container 2 at the top of a column 28 erected on the support 23, and a handle is provided on the arm member 29. A screw rod 30 is provided which advances and retreats by the forward and reverse rotations of the hook 31. A hook 32 is provided at the tip of the screw rod 30, and the lid 25 is locked to the hook 32 and lifted. In lifting the lid 25, the hook 32 may be directly locked to the locking portion provided on the lid 25, or the hook 3 may be connected via a wire or a rope.
2 may be locked.

In the vibration drying apparatus configured as described above, the material to be dried is charged into the container 2 from the charging port 9, and the heat medium is introduced into the cylindrical body 4 and the jacket 3 from the heat medium inlet 14. After being discharged from the medium outlet 15, the material 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 object to be dried is given a vibration in an inclined direction along the peripheral wall, lifted up obliquely along the side wall with the container 2, and lowered along the cylindrical body 4 at the center of the container 2. The to-be-dried material passage 5 is circularly moved around the cylindrical body 4 while performing a spiral motion. At this time, the stirring blade 22
Is dried by the stirring blades 22 forcibly. Thus, the drying process is performed on the object to be dried by horizontal movement, vertical jumping movement, and forced stirring.

Therefore, when the stirring blades 22 are not provided, the objects to be dried contain moisture and move together to form a nodule and take a long time for the drying process. It is not performed, or lumps remain in the powder after processing of the powdery material to be dried, resulting in non-uniform quality. However, if the stirring blades 22 are provided, the material to be dried is forcibly moved during the movement. Because it is agitated, it does not become a lump during processing, so the drying time is fast, even if the powdery substance to be dried does not leave lumps in the powder, uniform mixing, dispersion and stirring of the substance to be dried are performed It can be uniformly heated and dried to obtain a uniform quality dried product.

In the above description, the structure, arrangement, mounting method and the like of the motor, the rotating shaft and the stirring blade can be arbitrarily changed, and may be a detachable type or a fixed type.

[0022]

As described in detail above, according to the present invention, since the stirring blade for forcibly stirring the object to be dried is provided, the drying time is short, and even the object to be dried in the powder form is contained in the powder. No mixing remains, uniform mixing, dispersion,
Stirring is performed, and it is possible to obtain an effect of uniformly drying by heating to obtain a dried product of uniform 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 a plan view showing an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing a lid portion.

FIG. 4 is a front view showing a part of a conventional example in cross section.

DESCRIPTION OF SYMBOLS 1 Vibration drying device 2 Container 3 Jacket 4 Cylindrical body 5 Dry material passage 9 Input port 11 Discharge port 12 Exhaust port 18, 19 Vibration generator 20 Motor 21 Rotary shaft 22 Stirrer blade 25 Lid 27 Lifting lid apparatus

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[Procedure amendment]

[Submission date] April 27, 1999 (1999.4.2
7)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Continued on the front page (72) Inventor Koichi Takeda 2-4-1 Jooka, Nagaoka City, Niigata Prefecture Tamagawa Machinery Co., Ltd. Nagaoka Plant F-term (reference) 3L113 AA08 AB05 AC15 AC19 AC58 AC61 AC67 BA02 BA24 DA10 DA11 DA24

Claims (1)

[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 cylindrical body that stands upright from the bottom center in the container and forms an annular passage for the material to be dried, and a vibration generator that is provided to apply vibration to the container; A vibratory drying device comprising: a stirring shaft provided on a rotating shaft that is connected to and driven by a motor provided outside a container, and is provided in a passage of a material to be dried in the container.