JP3940868B2 - Vibration dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration drier that conveys a material to be dried by vibration, and in particular, while conveying mainly a material to be dried, such as a processed food or a chemical product, that has been washed with water or a solvent, by vibration. Further, the present invention relates to a vibration drier that blows hot air and blows away moisture and solvent to dry .
[0002]
[Prior art]
FIG. 1 is a diagram illustrating an example of an apparatus configuration in a vibration dryer . The material to be dried which is input from the input port 3 flows on the vibrating deck 2 to the right side of the drawing. During this time, the object to be dried receives hot air blown from the lower side of the deck 2 formed of a net-like member or the like, moisture and solvent are evaporated, and is discharged from the discharge port 4 as a dried object to be dried. Such a vibration drier is known as a drier that can quickly and efficiently dry the object to be dried because the air is directly brought into contact with the object to be dried.
[0003]
However, if the amount or thickness or layer (fluidized layer thickness) of the material to be dried flowing through the deck 2 is different, the hot air blows through in a place where the layer thickness is thin, and the hot air passes through the place where the layer thickness is thick. As it was bad, there was an inconvenience that unevenness of drying occurred on the material to be dried.
[0004]
Moreover, since the to-be-dried body is previously washed with water or a solvent, the to-be-dried body may flow on the deck 2 in a state of being solidified in a block shape. In such a case, unevenness of drying occurs such that the surface of the lump is dry but the inside is not sufficiently dried. Incidentally, in the prior art, a breaking device for breaking such a dried body solidified in a block shape has been provided in the vicinity of the discharge port 4.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vibration dryer in which the fluidized bed pressure of a material to be dried flowing on a deck is made uniform to eliminate drying unevenness. Another object of the present invention is to provide a vibratory dryer that eliminates drying unevenness by breaking the object to be dried solidified in a block shape while flowing on the deck to obtain a uniform fluidized bed thickness.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention transports a material to be dried input from an input port by a vibrating deck, blows hot air on the material to be dried, and discharges the dried material to be dried from a discharge port. A vibration dryer, a first comprising an axis of rotation, an agitating blade planted on the peripheral surface so as to be orthogonal to the axial direction of the axis of rotation, and a rotating means for rotating the axis of rotation. And the second stirrer, the first and second stirrers provided in the first and second stirrers are engaged with each other and the tip of the stirrer blades abuts the material to be dried flowing on the deck. A stirrer is installed across the deck in the width direction, and the to-be-dried body that flows in a block shape on the deck is sandwiched between the respective stirring blades that are swung to break and stirred, and the fluidized bed thickness of the to-be-dried body Configured to homogenize To have.
[0007]
The rotating shaft of the first stirrer is reciprocated by rotation of the driving motor, a rotating plate fixed to the rotating shaft of the driving motor and rotating, and one end of which is rotatably attached to the rotating plate. The second end of the transmission arm is rotatably attached to the other end of the transmission arm, and the other end of the transmission arm is turned by a turning means fixed to the turning shaft. The rotating shaft of the agitator includes a gear fixed to the rotating shaft of the second stirrer, and a rotating means comprising a gear fixed to the rotating shaft of the first stirrer meshing with the gear. It is preferable that it is a form rotated by.
[0008]
The stirring blade is planted in a straight line or in a spiral shape on the circumferential surface of the rotation shaft, and the shape thereof is either a cross-sectional round bar shape, a thin plate shape, a cross-sectional triangular bar shape, or a cross-sectional square bar shape, or those It is preferably formed by a combination of shapes.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a device configuration of a vibration dryer when only one swing type agitator (first agitator in the present invention) is installed . In the figure, the vibration dryer 1 is provided with a loading port 3 at one end of an elongated deck 2 and a discharge port 4 at the other end. The deck 2 is made of a net-like (or porous) member, and fine vibration is given to the whole by a power source (not shown) . The material to be dried introduced from the inlet 3 is dispersed by a distributor (dispersion plate for the material to be dried) 3a and falls onto the deck 2, and the material to be dried forms a thick fluidized bed. Thus, the vibration is sequentially conveyed on the deck 2 to the right side of the drawing by the vibration and discharged from the discharge port 4.
[0010]
The deck 2 is installed on a blower box 5 serving as a device base, and the blower box 5 has a plurality of blower ducts 6 to 6 each having adjustment dampers 6a to adjust the amount of blown air. It is connected. Then, hot air generated from the hot air generator 7 is blown into the blower box 5 through the blower ducts 6. Since the deck 2 is formed of a net-like member as described above, the blown hot air is blown upward from below the deck 2. The upper part of the deck 2 is covered with a hood 8, and a plurality of exhaust ducts 9 to 9 are connected to the hood 8, and the blown hot air is exhausted from the exhaust ducts 9 to 9.
[0011]
Further, a swing type agitator 10 is disposed on the deck 2 near the charging port 3 so as to pass over the entire length of the deck 2 in the width direction. The swing type agitator 10 agitates the charged material to be dried and makes the thickness uniform. 3A is a front external view of the swing type agitator 10, and FIG. 3B is a cross-sectional view taken along the line AA of FIG. 3A. A large number of stirring blades 12 to 12 are attached in a direction orthogonal to the axial direction of the swing shaft 11.
[0012]
That is, the large number of stirring blades 12 to 12 are planted on the half circumference surface of the swing shaft 11 facing the deck 2 at a spiral interval . In this embodiment , the stirring blades 12 to 12 are spirally attached to the half circumferential surface of the swing shaft 11, but other than this, for example, the stirring blades 12 to are not spiral but are linear on the circumferential surface of the swing shaft 11. It may be possible to plant in a straight line, or it may be provided in a plurality of rows by changing the position on the straight line. Such a swing shaft 11 is pivotally supported by bearings 14 on brackets 13 attached to both ends of the hood 8 in the width direction.
[0013]
FIG. 4 is a view for explaining a swing mechanism for swinging the swing shaft 11, and is a view taken in the direction of arrow B in FIG. In FIG. 4, the illustration of the motor 15 is omitted. 3 and 4, a rotating plate 17 is attached to a rotating shaft of a motor 15 fixed on the bracket 16, and the rotating plate 17 is rotated by driving the motor 15. One end of a transmission arm 18 is rotatably attached to the rotating plate 17. The other end of the transmission arm 18 is rotatably attached to one end of the swing lever 19, and the other end of the swing lever 19 is fixed to the swing shaft 11.
[0014]
With such a configuration, when the motor 15 is driven, the rotating plate 17 rotates, and the rotation of the rotating plate 17 causes the transmission arm 18 to reciprocate in the left-right direction in FIG. Swing left and right as indicated by the two-dot chain line. That is, when the rotating plate 17 rotates and the transmission arm 18 is positioned at the leftmost end, the position of the swing lever 19a is reached. Similarly, when the rotating plate 17 rotates and the transmission arm 18 is positioned at the rightmost end, the position of the swing lever 19b is reached. . Since the swing shaft 11 is fixed to the swing lever 19 as described above, the swing shaft 11 is rotated by the swing of the swing lever 19, and by this rotation, the circumferential surface of the swing shaft 11 is radiated. The attached stirring blades 12 to swing.
[0015]
Holes 17a and 17b (see FIG. 4) provided in the rotating plate 17 are mounting holes for the transmission arm 18, and are provided at positions where the distance from the rotation center of the rotating plate 17 is different. When the transmission arm 18 is attached to a hole close to the center of rotation, for example, the hole 17b, the amount of movement of the transmission arm 18 to the left and right is reduced, whereby the rotation angle of the swing shaft 11 fixed to the swing lever 19 is reduced. And the swing angle of the stirring blades 12 to 12 is also reduced. On the other hand, when the transmission arm 18 is attached to the hole far from the center of rotation, the amount of movement of the transmission arm 18 to the left and right increases, thereby increasing the swing angle of the swing lever 19. Since the rotation angle of the provided swing shaft 11 is also increased, the swing angle of the stirring blades 12 to 12 is also increased. As described above, the swing angle of the stirring blades 12 to 12 is variable.
[0016]
Next, a case where two swing type agitators according to the embodiment of the present invention are installed will be described. FIG. 2 is a diagram for explaining the vibration dryer 1 ′ according to the embodiment of the present invention. The form of the present invention is the same as that of the case where there is only one swing type agitator, but differs in that two swing type agitators 10 are combined to form a block grinder 20. That is, as described above, since the material to be dried is washed with water or a solvent in advance, the material to be dried may flow on the deck 2 while being solidified in a block shape after being charged from the charging port 3. Therefore, the block-like lump is pulverized by the block pulverizer 20 and stirred to obtain a uniform fluidized bed thickness.
[0017]
The block grinder 20 has two swing stirrers 10 (see FIG. 3) on the deck 2 in the vicinity of the inlet 3 as a first swing stirrer 20a and a second swing stirrer 20b. In this side-by-side arrangement, the swing shafts 11 of the first swing-type stirrer 20a and the second swing-type stirrer 20b do not come into contact with each other when the swing shafts 11 are arranged in parallel. In this manner, the agitating blades 12-are attached by shifting the axial attachment position, the tips of one agitating blade 12-are brought close to the other swing shaft 11, and the agitating blades 12-are engaged with each other .
[0018]
FIG. 5 is a diagram for explaining a swing mechanism for swinging the first swing type agitator 20a and the second swing type agitator 20b. The swing mechanism is the same as the configuration described in the case of one swing type agitator, the rotating plate 17 that rotates by the rotation of the motor 15, the transmission arm 18 that reciprocates left and right by the rotation of the rotating plate 17, and the transmission The swing lever 19 swings by the reciprocating motion of the arm 18 to the left and right, and the swing shaft 11 of the first swing type agitator 20a is rotated by the swing of the swing lever 19 .
[0019]
A gear 21a and a gear 21b are fixed to the swing shafts 11 of the first swing type agitator 20a and the second swing type agitator 20b, and the gear 21a and the gear 21b are engaged with each other . Thus, for example, as shown in FIG. 5, when the swing shaft 11 of the first swing type agitator 20a is rotated in the above procedure, the swing shaft 11 of the second swing type agitator 20b is interlocked with the rotation. Rotates in the opposite direction and swings in a state where the stirring blades 12 to 12 attached to the respective swing shafts 11 are engaged.
[0020]
FIG. 6A to FIG. 6D are diagrams showing examples of shapes of the stirring blades 12 to be attached to the swing shaft 11. In the figure, the stirring blade 12a shown in FIG. 6 (a) has a round bar shape in cross section. The stirring blade 12b shown in FIG. 6B has a thin plate shape. The stirring blade 12c shown in FIG. 6C has a triangular bar shape in cross section. The stirring blade 12d shown in FIG. 6 (d) has a square bar shape in cross section. The stirring blades 12 to 12 are formed of any one of these shapes or a combination of these shapes, and the optimum shape is selected depending on the particle size, shape, etc. of the material to be dried.
[0021]
In the above embodiment , the block pulverizer 20 is configured by the two first swing type agitators 20a and the second swing type agitator 20b . A block grinder may be configured with a swing type agitator , and the number of combinations is not limited.
[0022]
Furthermore, in the above-described embodiment , the stirring blades 12 to are attached to the half circumferential surface of the swing shaft 11 and the swing shaft 11 is rotated to swing the stirring blade 12 to the entire circumference of the swing shaft 11. It is good also as a structure which attaches the stirring blade 12- and rotates the stirring blade 12- by rotation of the swing shaft 11, and makes uniform a fluidized bed thickness and grind | pulverizes a block-shaped lump.
[0023]
With the configuration as described above, when an object to be dried is input from the insertion port 3, the input object to be dried is dispersed by the distributor (distribution plate for the object to be dried) 3a and falls onto the deck 2. . The fallen to-be-dried body flows toward the discharge port 4 based on the vibration applied to the deck 2, but reaches the block crusher 20 disposed on the deck 2 in the vicinity of the input port 3 and the first swing. The mixture is pulverized by being sandwiched between the stirring blades 12 to 12 of the type agitator 20a and the stirring blades 12 to 12 of the second swing type agitator 20b and flows on the deck 2 with a uniform layer thickness. At the same time, hot air from the hot air generator 7 is blown to the blower box 5 through the blower duct 6, and the blown hot air is blown out from below the deck 2 to contact the object to be dried. In this way, since hot air is blown against the uniform fluidized bed thickness of the object to be dried, the object to be dried is dried with a uniform degree of dryness and discharged from the discharge port 4. Hot air, moisture and solvent are exhausted from the exhaust duct 9.
[0024]
【The invention's effect】
As described above, according to the present invention, the to- be-dried body dropped on the deck in a state of being solidified in a block shape can break the block and flow on the deck as a uniform fluidized bed thickness, As a result, it is possible to realize a vibration dryer that can eliminate unevenness of drying of the object to be dried.
[Brief description of the drawings]
FIG. 1 is a diagram showing a device configuration of a vibration dryer having a swing type agitator .
FIG. 2 is a diagram showing an apparatus configuration of a vibration dryer having two swing type agitators according to an embodiment of the present invention.
3A is a front external view of a swing type agitator, and FIG. 3B is a cross-sectional view taken along line AA in FIG.
4 is a diagram for explaining a swing mechanism for swinging a swing shaft, and is a view taken in the direction of arrow B in FIG. 3;
FIG. 5 is a diagram for explaining a swing mechanism for rotating two swing stirrers in opposite directions and simultaneously performing a swing drive.
FIG. 6 is a view showing a shape of a stirring blade attached to a swing shaft.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,1 'Vibratory dryer 2 Deck 3 Inlet 4 Outlet 5 Blower box 6 Air duct 7 Hot air generator 8 Hood 9 Exhaust duct 10 Swing type agitator 11 Swing shaft 12 Stirring blade 15 Motor 17 Rotating shaft 18 Transmission arm 19 Swing Lever 20 Block grinder 20a First swing agitator 20b Second swing agitator 21a, 21b Gear

Claims (4)

In the vibratory dryer that conveys the material to be dried fed from the inlet through the vibrating deck, blows hot air on the material to be dried, and discharges the dried material to be dried from the outlet.
A rotating shaft, the stirring blades planted on the circumferential surface so as to be perpendicular to the axial direction of the pivot axis, first and second agitator comprising a rotating means for rotating said rotating shaft wherein the first and the tip of the stirring blade to flow over the deck to be dried body first and second agitator so as to abut on together with the second of the stirring blade that is provided on the agitator intermesh There juxtaposed passing pointing in the width direction of the deck, to be dried body to flow to above the deck in blocks, while stirring to break by sandwiching the respective stirring blades swing, the flow of the object to be dried body A vibration dryer characterized by uniform layer thickness. The rotation shaft of the first agitator, a driving motor, a rotating plate which rotates is fixed to the rotation shaft of the driving motor, the rotation of the rotary plate at one end to the rotary plate is rotatably attached to The transmission arm is reciprocally moved by the rotation means, and the other end of the transmission arm is pivotally attached to the other end of the transmission arm and the other end is pivoted by a pivoting means fixed to the pivot shaft. The rotating shaft of the second stirrer includes a gear fixed to the rotating shaft of the second stirrer and a gear fixed to the rotating shaft of the first stirrer that meshes with the gear. 2. The vibration dryer according to claim 1 , wherein the vibration dryer is rotated by a rotating means comprising: 2. The vibration dryer according to claim 1 , wherein the stirring blade is planted in a straight line or in a spiral shape on the circumferential surface of the rotating shaft. 2. The vibration dryer according to claim 1 , wherein the stirring blade is formed of any one of a round cross-sectional bar shape, a thin plate shape, a cross-sectional triangular bar shape, a cross-sectional square bar shape, or a combination of these shapes. .

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