JP3920724B2 - Cereal drying equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cereal drying apparatus.
[0002]
[Prior art]
Conventionally, as a method of drying cereals, especially rice mills and rice bran, a hot air drying method performed by contacting hot air, a drying method of contacting cereals with a heating drum, a heating disk or a heating mesh conveyor, Various drying methods, such as a method of heating and drying while conveying cereals with a screw-type stirring blade, and a method of heating and drying while circulating cereals downward from above, have been implemented.
[0003]
[Problems to be solved by the invention]
However, the conventional method for drying cereals causes uneven drying, only a large amount can be dried, and a small amount cannot be accurately dried. However, it was not possible to implement universally because there were merits and demerits, such as damage to the surface of cereals and cracking of cereals due to rapid dehydration by hot air.
[0004]
[Means for Solving the Problems]
Accordingly, the present invention is a receiving network Zhang was set in the drying cylinder, the cereal inlet in the upper part of the drying cylinder, in the drying apparatus of cereals which opened the air blowing port to air dry air downward,受網Is bent from both sides to the outside of the center and stretched so that it can be tilted. Above the receiving net, a leveling plate for leveling grains on the receiving net can be rotated. Install and receive cereals in a state where the receiving net is flat, then level the thickness of the cereal on the receiving net with a flat plate, feed dry air from the blower vent, and then tilt and tilt the receiving net It is an object of the present invention to provide a cereal drying apparatus characterized by dropping and collecting cereals below a drying cylinder .
[0005]
In the present invention,受網it is that a plurality of stages formed by maintaining a constant space from each other, the bottom surface of the drying cylinder is substantially inverted conical shape toward the center, or the possible substantially inverted polygonal pyramid form, dry The dry air is also characterized by blowing air while cooling.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In this invention, when grains are scattered in a certain thickness on the receiving net in the drying cylinder and air is supplied from the lower side of the drying cylinder, the cereal on the receiving net is supplied from below. The dehydrated and dried air comes into contact with the dried air, and the moisture-containing air is exhausted from above the drying cylinder. Then, after drying is finished, the receiving grain is bent and tilted in an approximately eight shape from the center to the left and right sides, whereby the dried cereal falls downward and is discharged from the lower outlet of the drying cylinder. , The bottom receiving net is bent and tilted first, the cereal is allowed to flow downward, and discharged through the outlet of the drying cylinder. Next, the receiving net that is one step above the lowermost stage is bent and tilted, and the cereals of constant dryness are allowed to flow down to the lowermost receiving net that has been returned to the horizontal level first, and further dried on this receiving net. After drying the cereals in contact with air, when the constant drying is completed, the bottom receiving net is further bent and tilted downward, and discharged and collected outside the drying cylinder. Gradually moving grains on the upper receiving net one after another to the receiving net that has become a land just below The cereals that have flowed down to the multi-stage receiving nets are gradually dried on each receiving net, finally dried in the last receiving net, and further flowed downward to be discharged and collected outside the drying cylinder. .
[0007]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0008]
FIG. 1 is an overall view of a cereal drying apparatus X. A cereal supply apparatus 6 that supplies cereal before drying and a cereal supply apparatus 6 disposed below the cereal supply apparatus 6 to dry the cereal fed from the cereal supply apparatus 6. A drying cylinder A is arranged.
[0009]
The cereal supply device 6 and the drying cylinder A are communicated with each other via a mechanism such as a rotary valve 10.
[0010]
A grain inlet 2 is disposed above the drying cylinder A, and a dry air production device 17 for producing cooled dry air is disposed at the bottom of the drying cylinder A. Between the drying cylinder A and the dry air production apparatus 17 Has a blower opening 3 for supplying dry air. In the upper part of the drying cylinder A, a dry air exhaust port 15 for exhausting air containing moisture after drying the cereals is arranged.
A dust collector or the like may be provided at the tip of the dry air exhaust port 15 to simultaneously perform dust collection work while exhausting the dry air.
[0011]
The drying cylinder A is formed in a circular cylindrical shape, and the lower part is formed in an inverted conical shape, and the receiving net 1 is tiltably stretched on the inner upper half of the drying cylinder A. At the bottom of the drying cylinder A, a receiving net 1 'is provided in an inverted conical shape along the inner peripheral wall. Further, the shape of the lower portion of the drying cylinder A may be formed in an inverted polygonal pyramid shape.
[0012]
In addition, as shown in FIG. 1, the lower shutter 23 which can control discharge | emission of the grain S after drying is arrange | positioned between the drying cylinder A and the grain discharge port 16. As shown in FIG. An exhaust shutter 22 is provided between the drying cylinder A and the dry air exhaust port 15 so that the exhaust of the dry air can be regulated.
[0013]
FIG. 2 shows an embodiment in which a drying cylinder A constituting a part of the cereal drying apparatus X is constituted by a single receiving net 1, and three drying cylinders A are arranged in parallel to each drying cylinder. A grain supply device 6 is disposed above A via a three-way switching valve 18.
[0014]
From the three-way switching valve 18, a conveying pipe 19 is branched in three directions and communicated with the drying cylinder A.
[0015]
The receiving net 1 is bent and tilted by the rotation of the linear frame 11. The rotation mechanism of the linear frame 11 will be described later. In the figure, S is a cereal for drying.
[0016]
3-5 shows the Example which has arrange | positioned the receiving net | network 1 in one large sized drying cylinder A in multiple steps. That is, the receiving network 1 configured to be able to be bent and tilted from the center shown in FIG. 1 is stretched in multiple stages, and the space between the receiving network 1 and the receiving network 1 is about 300 mm, the lowermost receiving network 1 and the grain outlet 16. It is stretched while holding up to about 500 mm. On the upper surface of each receiving net 1, a driving shaft 20 is provided in the center, and a leveling plate 4 is provided that is rotatable on the receiving net 1 by a driving mechanism described later.
[0017]
As shown in FIGS. 4 and 5, a rotary shaft 7 extending in the lateral direction and a rotary blade 8 attached to the rotary shaft 7 are housed in the rotary case 9 at the lower end of the grain supply device 6. A rotary valve 10 is provided continuously.
[0018]
In particular, FIG. 3 shows a drive mechanism for the flat plate 4, and the drive shaft 20 at the center of the flat plate 4 is linked to the drive lot 14 extended outside the drying cylinder A via the bevel gear 5. The end of 14 is connected to the output shaft of the drive motor M1.
[0019]
As shown in FIGS. 6 and 7 when the drying cylinder A is viewed from above, the receiving net 1 is formed in a disc shape and cut at the center to form semicircular arc left and right receiving nets 1a and 1b, and two semicircles are formed. A straight frame 11 is provided on each straight line portion that is an arcuate butting portion, and the frame 11 is configured to rotate in opposite directions.
[0020]
As shown in FIG. 11, the drive of the relative rotation of the linear frame 11 is performed by connecting the tip of the frame 11 and a cylinder 12 arranged in a substantially inverted octagonal shape from the center to the left and right sides by a connecting tool 13. When the cylinder 12 contracts, the left and right receiving nets 1a and 1b are configured to bend and tilt in an approximately eight shape from the center to the left and right sides.
[0021]
Further, the relative rotation of the linear frame 11 may be driven by a driving mechanism in which a meshing gear is provided at each frame end and the power of an external motor is transmitted to one meshing gear via a bevel gear. Good.
[0022]
As shown in FIGS. 6 and 7, the tip of the leveling plate 4 is arranged at a plurality of angles rather than in a straight line from the drive shaft 20, so that the cereal S is sent from below and floated from above the receiving nets 1 a and 1 b. It is also arranged so that it can be stirred.
[0023]
The receiving net 1 configured in this manner receives the grains in a flat surface state, and then the thickness of the grain layer on the receiving net 1 with the flat plate 4 is about 30 mm to 50 mm (15 to 25 grains in terms of rice grains). Level) is dried from the bottom of the drying cylinder A and brought into contact with the grains on the receiving net 1 to dry the moisture contained in the grains. When drying is completed, the receiving net 1 is bent into an approximately eight shape from the center by the various drive mechanisms as described above, and the dried grains are dropped from both bent edges to the bottom of the drying cylinder A and collected. Is.
[0024]
As described above, the cereal drying apparatus X according to the present embodiment is configured, and the steps for drying cereal using the cereal drying apparatus X will be described below with reference to FIGS. And explained.
[0025]
First, the cereal S is supplied from the cereal supply device 6 to the receiving net 1 in the drying cylinder A by passing the cereal S before drying through the rotary valve 10, and the cereal S on the receiving net is further flattened 4. The dry air cooled by the lower part of the drying cylinder A and scattered in the layer of about 30 mm to 50 mm suitable for drying by the dry air feeding by the stirring by the air is sent upward.
[0026]
The cereal S on the receiving net 1 floats from the receiving net 1 by contacting with dry air of about 3 to 40 ° C. manufactured using a commercially available dehumidifier or the like fed from below, and the flat plate 4 rotates. At the same time, it is dehydrated and dried without crushing the cells on the surface of the cereal S that has been absorbed and has a soft surface.
[0027]
The moisture of the cereal S can be easily adjusted by the temperature, humidity, time, and air volume of the dry air.
[0028]
The air containing moisture after the cereal dehydration drying is exhausted from the dry air exhaust port 15 above the drying cylinder A. Next, the receiving net 1 is bent and tilted, and the cereal S is dropped and sprayed downward, and then the receiving net 1 is bent and tilted to flow down to the lower receiving net 1 and dropped to the lower receiving net 1 one after another. Then, the whole in the drying cylinder A is dried by dropping and dispersing the cereal S to the lowermost receiving net 1. When drying of the grain S on the lowermost receiving net 1 is completed, the lower receiving net 1 is bent and tilted to discharge the grain S downward, and then the receiving net 1 is returned to the original level. Then, the receiving net 1 that is one step higher than the lowermost level that has become a terrain is bent and tilted, and the constant dry cereal S is allowed to flow down to the lowermost receiving net 1 that has returned to the horizontal level first. Then, the drying operation of the cereal S is further performed by contacting with dry air, and when the constant drying is completed, the drying cylinder A with the bottom surface provided in a substantially inverted conical shape by further bending and tilting the bottom receiving net 1 is effective. The dried cereal S is collected and discharged. In addition, since the receiving net | network 1 'is distribute | arranged to the inner peripheral wall of the lower bottom face provided in the substantially reverse cone shape of the drying cylinder A, it can prevent that the grain S is discharged | emitted by the ventilation port 3. FIG.
[0029]
In this way, the grains S on the multistage receiving network 1 are made to flow down sequentially to the receiving network 1 that has become a land just below, so that the grains S that have flowed down to the multistage receiving network 1 one after another. It is gradually dried above, and finally dried on the last receiving net 1 and discharged and collected outside the drying cylinder A.
[0030]
In particular, the movement of the receiving network 1 when the receiving network 1 is stretched in a plurality of stages (three stages in this embodiment) will be described with reference to FIGS. 8, 9, and 10. First, as shown in FIG. The bottom receiving net 1-1 is bent and tilted, the cereal S is caused to flow downward, and is discharged by discharging the drying cylinder A. Next, as shown in FIG. , And then bent and tilted the upper receiving net 1-2 on the lowermost stage, which has become a further ground, to the lowermost receiving net 1-1 that has been returned to the horizontal level earlier, and the cereal S of constant drying As shown in FIG. 10, the receiving network 1-2 is returned to the original level, and similarly, the receiving network 1 in the upper stage of the receiving network 1-2 that has been further cleared is used. 3 is bent and tilted, and the dried cereal S is allowed to flow down to the receiving net 1-2 that has been returned to the horizontal position previously. In this way, the grains S on the multistage receiving network are made to flow down to the receiving network that has become a land just below, in order, so that the grains S that have flowed down to the multistage receiving network one after another, It is gradually dried on 1-2, finally dried on the last receiving net 1-1, and discharged and collected outside the drying cylinder A from the cereal discharge port 16.
[0031]
【The invention's effect】
In the present invention according to claim 1, the receiving network Zhang was set in the drying cylinder, the cereal inlet in the upper part of the drying cylinder, in the drying apparatus of cereals which opened the air blowing port to air dry air downwardly The receiving net is bent from both sides toward the outside of the center and is stretched so that it can freely tilt. Above the receiving net, a leveling plate is used to level the grain on the receiving net. Arranged movably, receiving the cereal with the receiving net in a flat state, then leveling the thickness of the cereal on the receiving net with a flat plate and feeding dry air from the air outlet, then bending the receiving net Since the cereals are tilted and dropped and recovered under the drying cylinder , the drying of the cereals can be easily adjusted, and since the cereals are agitated in a floating state, the surface of the cereal after washing the cereals It is possible to prevent the cells that are soft from being crushed or damaged. Moreover, it can stir so that the grain on a receiving net may become equal. Furthermore, a small amount of accurate drying can be performed.
[0032]
In the present invention according to claim 2, since the receiving net is formed in a plurality of stages while maintaining a constant space, the cereal can be dried more reliably.
[0033]
In the third aspect of the present invention, the bottom surface of the drying cylinder has a substantially inverted conical shape or a substantially inverted polygonal shape toward the center, so that the dried cereal can be effectively recovered and discharged. .
[0036]
In this invention of Claim 4 , since dry air blows, cooling, it can prevent the crack which arises in grains due to the rapid dehydration by a hot air.
[Brief description of the drawings]
FIG. 1 is a front view showing an overall configuration of an embodiment of a cereal drying apparatus according to the present invention.
FIG. 2 is a front view when drying cylinders are juxtaposed in an embodiment of a cereal drying apparatus according to the present invention.
FIG. 3 is a side cross-sectional view of the grain drying apparatus according to the embodiment of the present invention when receiving nets are arranged in multiple stages in a drying cylinder.
FIG. 4 is a front sectional view of the same.
FIG. 5 is a front sectional view of the same.
FIG. 6 is a plan view of an embodiment of a cereal drying apparatus according to the present invention.
FIG. 7 is a plan view when the receiving network is bent and tilted.
FIG. 8 is a front sectional view showing the movement of the receiving net when the receiving net is stretched in a plurality of stages in one embodiment of the grain drying apparatus according to the present invention.
FIG. 9 is a front sectional view of the same.
FIG. 10 is a front sectional view of the same.
FIG. 11 is an explanatory view showing a driving mechanism of a receiving net.
[Explanation of symbols]
A Drying cylinder S Cereal 1 Receiving net 2 Cereal inlet 3 Air outlet 4 Flat plate

Claims (4)

The receiving network Zhang was set in the drying cylinder, the cereal inlet in the upper part of the drying cylinder, in the drying apparatus of cereals which opened the air blowing port to air dry air downward,
The receiving net is bent from both sides toward the outer side and stretched so that it can be tilted.
Above the receiving net, a leveling plate for leveling the grains on the receiving net is rotatably arranged,
Receive the cereal with the receiving net in a flat state, then level the thickness of the cereal on the receiving net with a flat plate and feed dry air from the blower port, then fold and tilt the receiving net below the drying cylinder A cereal drying apparatus, wherein the cereal is dropped and recovered.   2. The cereal drying apparatus according to claim 1, wherein the receiving net is formed in a plurality of stages while maintaining a constant space.   The cereal drying apparatus according to claim 1 or 2, wherein the bottom surface of the drying cylinder has a substantially inverted conical shape or a substantially inverted polygonal pyramid shape toward the center. The drying apparatus for cereal according to any one of claims 1 to 3, wherein the dry air is blown while being cooled.

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