JP3864112B2 - Dried persimmon drying equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a drying device for drying straw, and more particularly to a drying device for drying straw after drying in the sun.
[0002]
[Prior art]
Conventionally, as a processing method for astringent persimmon, a method of drying dried persimmon by sun drying has been common. These dried persimmons are produced by peeling astringency, tying multiple ropes, suspending them under eaves with good sunlight and air, and drying them for a certain period of time. This drying period is affected by the weather such as wind and rain, and it varies slightly depending on the variety of pods and the type of dried pods. Therefore, it takes days until the harvested cocoons are shipped as dried cocoons. Dried persimmons that are naturally dried by the sun are superior in terms of quality such as appearance and sweetness, but can only be produced in cold regions and after October when the nights get colder. There were seasonal constraints.
[0003]
In order to eliminate such drawbacks caused by sun drying, there is also a method of drying the straw in a short time using an artificial dryer (see FIG. 5). The dried cocoon manufacturing apparatus 50 includes a drying chamber 51 having a floor surface 52 formed of a foundation such as concrete, a wall 53 surrounding the floor surface 52, and a roof 54 installed above the wall 53. It is made up of. The side wall 53 is provided with a door 55 for carrying in and out the basket 60, and a cold air blowing pipe 56 is connected to the upper side of the wall 53, and a hot air blowing pipe 57 is connected to the lower side. In addition, an air cleaner 58 and a dehumidifier 59 are installed inside the drying chamber 51, and a rod 61 for hanging the basket 60 directly below the ceiling in the drying chamber 51 extends from one side of the wall 53 to the opposite side. Multiple lines are stretched horizontally.
[0004]
When drying the reed 60, first, the reed 60 is peeled off, a string such as a rope is tied to a spatula, and an appropriate number is continuously hung from the hanging rod 61 of the drying chamber 51. Then, hot air of + 10 ° C. to + 30 ° C. is blown from the hot air blowing pipe 57, and the air purifier 58 and the dehumidifier 59 are operated while the inside of the drying chamber 51 is maintained at this temperature. By keeping this state for a predetermined time, the moisture is evaporated from the surface while keeping the moisture inside the bag 60.
[0005]
Thereafter, the hot air blowing pipe 57 and the dehumidifier 59 are stopped, and cold air of −20 ° C. to less than + 10 ° C. is blown from the cold air blowing pipe 56 while the air purifier 58 is operated, and this − The temperature is maintained at 20 ° C. to less than + 10 ° C. for a predetermined time. By blowing this cold air, the moisture inside the pulp of the cocoon 60 is gradually diffused to the surface side, and the inside of the cocoon 60 is also dried. In this way, by repeating the operation of blowing warm air and the operation of blowing cold air, the straw 60 is gradually dried as a whole, and the astringent tannin in the pulp is changed to insoluble and matured. To go.
[0006]
[Problems to be solved by the invention]
However, when a strong wind is blown into the drying chamber 51, overdrying occurs. On the other hand, if the wind is weak, the wind does not reach the drying chamber 51 sufficiently, and drying unevenness occurs in the basket 60. In addition, in order to approach the taste equivalent to the sun-dried, the natural time of the time when dried raisins are produced from October to December, for example, based on the past weather data, the repeated time of hot air and cold air, temperature and humidity, etc. Although it is possible to set the same conditions as those of natural drying and to dry under the same conditions as the conventional natural drying, there is a natural limit to obtaining the sweetness and appearance peculiar to sun drying.
[0007]
The present invention has been made in view of such circumstances, and has an object of providing a drying device for drying strawberries that has the appearance and sweetness of sun-drying and can be quickly and systematically dried and shipped. Yes.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, the invention described in claim 1 of the present invention is a drying device for drying dried straw that has been dried in advance for a predetermined period of time, and a main body covered with a partition made of a heat insulating material. A plurality of stirrer fans arranged on the ceiling in the main body, a dehumidifier provided on the side of the main body, a cooling device provided on the upper part of the main body, and a control unit. The angle of the blowing part of the blower fan can be adjusted while keeping the temperature within a predetermined temperature range, and the blower fan is repeatedly turned on and off at predetermined time intervals so as to be intermittently operated for a predetermined period. I made it.
[0009]
Thus, while maintaining the temperature in the main body within a predetermined temperature range, the angle of the blowout part of the blower fan can be adjusted, and the blower fan is repeatedly turned on and off at predetermined time intervals for a predetermined period. Since the intermittent operation is performed, it is possible to quickly and systematically produce a high-quality soup bowl having an appearance and sweetness that is very close to that of a conventional sun-dried rice cake with a simple apparatus configuration. Moreover, since a plurality of blower fans are arranged in a staggered manner, the air in the main body can be efficiently circulated and stirred, and the dried straw can be uniformly dried to a desired moisture content.
[0010]
Preferably, if the blower fan is a sirocco fan as in the invention described in claim 2, the static pressure is higher than that of other fans and a large amount of air can be produced, which is suitable for this type of blower. It can be said.
[0012]
Moreover, if the dehumidifier and the cooling device are arranged outside the main body as in the third aspect of the invention, there is basically no obstacle in the main body, and the circulation of the wind goes smoothly. At the same time, the internal temperature can be kept stable and constant. Furthermore, it is possible to facilitate the loading and unloading work of the hanging rod, and the working efficiency can be improved.
[0013]
Preferably, as in the invention described in claim 4 , when the blower fan is repeatedly turned ON for 15 seconds and turned OFF for 10 seconds and intermittently operated for approximately one week, the moisture content of the dried straw is maintained in the range of 40 to 50 wt%. It is possible to produce high quality anpo rice cake that is very similar in appearance and sweetness to the traditional sun-dried rice cake.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 to FIG. 3 show an embodiment of a drying apparatus for drying straw according to the present invention, FIG. 1 is a plan view, FIG. 2 is a sectional front view taken along the line II-II in FIG. is there.
[0015]
The drying device 1 for a dried straw includes a main body 3 covered with a partition wall 2 made of a heat insulating material, a plurality of blower fans 4 disposed on a ceiling in the main body 3, and a dehumidifier 5 provided on a side portion of the main body 3. And the cooling device 6 provided in the upper part of the main body 3, and the control part 7 are provided. In addition, 2a is a door for carrying in / out.
[0016]
After the bark 8 is peeled off by machine or by hand, a string such as a rope is tied to the spatula of the bark 8, and an appropriate number is continuously suspended from the suspension bar 9. The hung 8 thus suspended is naturally dried for about one week in the sun, and the one that does not become sticky even when touched on the surface is stored in the main body 3 at equal intervals while being hung. At this time, the ridge 8 has a moisture content of 50 to 60 wt%, a brownish surface, and a jelly-like central portion, but the moisture is still non-uniform. The rice cake 8 in this state is finished and dried to a state where it can be shipped as an candy rice cake in the drying device 1 for dried rice cake according to the present invention.
[0017]
Usually, dried koji is classified into koji kaki and anpo koji, and koji koji refers to koji in which the water content of koji is 20-25 wt% or less and white powder called sucrose is blown on the surface. An anchovy used for a drying apparatus refers to one having a water content of 40 to 50% by weight, a so-called discoloration on the surface, a uniform water content in the center, and a jelly shape.
[0018]
The blower fans 4 are arranged in a staggered pattern of five machines on almost the entire surface of the partition wall 3 on the ceiling, that is, in this embodiment, two rows are alternately arranged, and a strong wind of 8 to 9 m ³ / min is intermittently provided. Spray downward. The blower fan 4 is a sirocco fan, which will be described later, and can change the direction of the air blown out manually or automatically. Dry air is blown and circulated in the main body 3 as indicated by an arrow a. Such air swirl flows also interfere with each other to generate an air flow other than the arrow a, which is stirred in the main body 3 so that the basket 8 can be dried uniformly. The blower fan 4 is intermittently operated at ON 15 seconds and OFF 10 seconds by a signal of a timer (not shown) provided in the control unit 7 to prevent excessive drying of the basket 8 and at the same time, easily transfer moisture inside the basket 8. To do.
[0019]
On the other hand, the temperature inside the main body 3 is always kept at + 30 ° C. or less, preferably around + 15 ° C. by the cooling device 6. Thus, by keeping the inside of the main body 3 at + 30 ° C. or less, the moisture inside the basket 8 that could not be dried by sun drying moves to the surface and the moisture evaporates from the surface. 6a is a cold air outlet and 6b is a drain. Although the operation time of the blower fan 4 is ON 15 seconds and OFF 10 seconds, the operation cycle can be appropriately set depending on the type of the eaves 8 and the temperature in the main body 3 can be arbitrarily set according to the desired required quality. it can.
[0020]
Moisture evaporated from the surface of the ridge 8 is absorbed by the dehumidifier 5. Thus, after about one week, when the moisture content of the cocoon 8 is 40 to 50 wt%, preferably around 45 wt%, the appearance and sweetness are increased, and a high quality Anpo koji is completed.
[0021]
As in the above-described embodiment, only the blower fan 4 is disposed in the main body 3, and other than that, that is, the dehumidifier 5, the cooling device 6, and the control unit 7 are disposed outside the main body 3. There are basically no obstacles inside, and the circulation of the wind goes smoothly, and the internal temperature can be kept stable and constant. Furthermore, the carrying-in and carrying-out work of the hanging rod 8 can be facilitated, and the working efficiency can be improved.
[0022]
In addition, when it is desired to further reduce the amount of moisture in accordance with the type of dried persimmon or the appearance and sweetness requested by the customer, it can be easily adjusted by extending the drying treatment time in the main body 3.
[0023]
Next, the structure of the blower fan 4 will be described in detail with reference to FIG. (A) is a front view, (b) is a bottom view of (a), and (c) is a side view.
[0024]
The blower fan 4 is commonly called a sirocco fan, and includes a cylindrical impeller 11 that is rotatably supported on a substrate 10, a motor 12 that rotationally drives the impeller 11, and a hood 13 that houses the impeller 11. . The side wall of the hood 13 is formed with an eyebrow-shaped angle adjustment window 13a, and the angle of the hood 13 can be freely adjusted around the fulcrum shaft 13b. Thereby, the angle of the blowing part 13c can be changed as appropriate, and can be adjusted in advance so that the air flow in the main body 3 becomes uniform. Although not shown in the figure, if the oscillating blade is provided in the blowing portion 13c and the air direction is automatically changed within a predetermined angle range, the air flow in the main body 3 can be further kept uniform, The suspended basket 8 can be dried uniformly.
[0025]
Since this sirocco fan has a higher static pressure than a cross flow fan and can produce a larger air volume than a turbo fan, it can be said that this sirocco fan is suitable as this type of blower fan. However, the blower fan 4 is not limited to this, and may be a turbo fan that has high efficiency and can distribute the air volume over a wide range, or a crossflow fan that can set a larger air volume.
[0026]
As described above, the drying device 1 for drying rice cake according to the present invention is for final finishing drying the rice cake 8 that has been naturally dried in advance for a predetermined period of time to a desired amount of water. Only the fan 4, the dehumidifier 5, the cooling device 6, and the control unit 7 that controls these devices under predetermined conditions are required, heaters such as a far-infrared irradiation device are unnecessary, and a drying device with a simple configuration is provided. be able to. As a result, it is possible to quickly and systematically produce high-quality potato paste with an appearance and sweetness that is very close to that of traditional raisins, without being restricted by regional, weather and seasonal restrictions. can do.
[0027]
The embodiment of the present invention has been described above, but the present invention is not limited to such an embodiment, and is merely an example, and various modifications can be made without departing from the scope of the present invention. Of course, the scope of the present invention is indicated by the description of the scope of claims, and further, the equivalent meanings described in the scope of claims and all modifications within the scope of the scope of the present invention are included. Including.
[0028]
【The invention's effect】
As described in detail above, the drying device for drying straw according to the present invention is a drying device for drying straw that has been dried in advance for a predetermined period of time, and a main body covered with a partition made of a heat insulating material, A plurality of staggered fans arranged on the ceiling of the main body, a dehumidifier provided on the side of the main body, a cooling device provided on the upper part of the main body, and a control unit, While maintaining the temperature within a predetermined temperature range, the angle of the blowout part of the blower fan can be adjusted, and the blower fan is repeatedly turned on and off at predetermined time intervals to operate intermittently for a predetermined period. Therefore, with a simple apparatus configuration, it is possible to quickly and systematically produce a high quality potato paste having an appearance and sweetness that is very close to that of a conventional dried cocoon.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a drying apparatus for drying straw according to the present invention.
FIG. 2 is a cross-sectional front view taken along the line II-II in FIG.
FIG. 3 is a side view of the same.
FIG. 4A is a front view showing an embodiment of a blower fan according to the present invention.
(B) is a bottom view of (a).
(C) is a side view of (a).
FIG. 5 is an exploded perspective view showing a conventional apparatus for producing dried rice cake.
[Explanation of symbols]
1 ... Drying machine 2 for dried rice cake ... 2 partition wall 2a ...・ ・ Door 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Main body 4 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Blower fan 5 ... Dehumidifier 6 ... Cooling device 6a ... Air outlet 6b ... ·········································································· 9・ ・ ・ ・ ・ ・ ・ ・ ・ Hanging rod 10 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Substrate 11 ・ ・ ・ ・ ・ ・ ・ ・ Impeller 12 ・ ・ ・ ・ ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ Motor 13 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Hood 13a ・ ・ ・ ・ ・ ・ ・ ・ Angle adjustment window 13b ·························································································································· ····························································································· ··············································································································· 57 ······························································ Air cleaner 59・ ・ Dehumidifier 60 ・ ・ ・ ・ ・ ・ ・ ・ ・ 柿 61 ・ ・ ・ ・ ・ ・ ・ ・ ・ Bar

Claims (4)

A drying apparatus for drying dried straw that has been dried in advance for a predetermined period of time, a main body covered with a partition made of a heat insulating material, and a plurality of air blowing fans arranged in a staggered manner on the ceiling in the main body, A dehumidifier provided on a side portion of the main body, a cooling device provided on an upper portion of the main body, and a control unit, and blowing out the blower fan while maintaining a temperature in the main body within a predetermined temperature range. A drying apparatus for drying straw which is capable of adjusting the angle of the section, and repeatedly turns on and off the blower fan at a predetermined time interval and intermittently operates for a predetermined period.   The drying apparatus for drying straw according to claim 1, wherein the blower fan is a sirocco fan. The drying device for drying straw according to claim 1 or 2 , wherein the dehumidifier and the cooling device are disposed outside the main body. The drying apparatus for drying straw according to any one of claims 1 to 3, wherein the blower fan is intermittently operated for about one week by repeating ON for 15 seconds and OFF for 10 seconds.

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