JPH10197150A - Multi-chamber type mushroom drying device and multi-chamber type mushroom drying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dry a mushroom in a uniform finished state in each of drying chambers by a method wherein a gas discharging hole arranged at a ceiling section of a drying chamber corresponding to a sensing means is closed, flow of hot air into the drying chamber is restricted and flow of the hot air into another drying chamber is promoted as the flow of the hot air is restricted. SOLUTION: A first drying chamber 1 and a second drying chamber 2 are formed into a pair of right and left boxes having a predetermined capacity. A predetermined heat insulating panel is arranged at a wall section and then some mushroom shelves 13 having multi-stage nets therein are arranged in the panel in such a way that they may be freely pushed into or pulled out of it. Each of the first and second sensing means 10, 11 is arranged at an upper part of each of the first and second drying chambers 1 and 2, respectively, and these sensing means 10 and 11 are cooperatively related with the first and second operating means 8 and 9. When a sensing signal of each of the sensing means 10 and 11 is generated by a control means 12, discharging holes 6, 7 arranged at the ceiling part of each of the drying chambers 1 and 2 are closed so as to restrict a flowing of hot air for each of the drying chambers 1 and 2 and to promote flow of hot air for another drying chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus having a plurality of drying chambers, and more particularly to a multiple-type mushroom drying apparatus capable of processing mushrooms in each drying chamber with a uniform finish.

[0002]

2. Description of the Related Art Conventionally, in order to efficiently dry a large amount of mushrooms, for example, shiitake mushrooms, under a predetermined condition, a double dryer having two drying chambers is known.

[0003] In these two drying chambers, raw shiitake mushrooms are placed on a shrimp (net shelf) and accommodated, and hot air from a hot air generator generated by burning a burner using kerosene is uniformly distributed to the lower side of each drying chamber. Send it in and exhaust it from the top exhaust hole,
Drying has been performed by so-called airflow that flows room air.

[0004] However, the amount of shiitake mushrooms stored in these drying chambers differs from side to side,
When shiitake mushrooms with different growth conditions (especially water content) are housed in separate drying chambers, if the hot air is blown in under the same conditions, the drying completion time in each drying chamber will vary, and the shiitake mushrooms dried quickly If the dried mushrooms were taken out of the drying room on the basis of the dried shiitake mushrooms, the shiitake mushrooms in the other drying room would become undried and not be commercialized.

For this reason, in some processing plants, an operator always waits on the machine to monitor the progress of drying of the shiitake mushrooms. By manually closing the damper, the indoor air is diverted to the air intake side in the hot air generator, and the internal pressure of the drying chamber is increased, so that the hot air supplied to the drying chamber from the hot air generator is The temperature was lowered from the drying room, and the subsequent drying of shiitake mushrooms was suppressed.

However, this drying operation is performed by the operator of the skilled worker who has a good degree of dryness of the shiitake mushroom, and the above-mentioned damper operation is performed by the skilled worker. Not only that, but also the operator must be constantly waiting near the machine for monitoring, so the labor burden on the operator is large, and the purpose of labor-saving automatic drying can be achieved. Absent. And other various problems.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and supplies hot air to mushrooms in a pair of left and right drying chambers while drying the mushrooms. When the detection signal of the first and second detection means provided is issued, the exhaust hole provided in the top of the drying chamber corresponding to the detection means is closed, and the flow of hot air to this drying chamber is regulated, In addition to suppressing overdrying of the mushrooms, along with the regulation of the flow of the hot air, by promoting the ventilation of the hot air to the other drying chambers, the mushrooms in the respective drying chambers are dried with a uniform finish. It is an object of the present invention to provide a multiple mushroom drying apparatus capable of saving labor by automatic control of mushroom drying.

[0008]

Means of the present invention for achieving the above object is to provide a pair of left and right first and second drying chambers in which a multi-stage mushroom shelf is provided so as to be freely inserted and removed. Hot air generating means provided between the first and second drying chambers to supply hot air to these drying chambers respectively; an exhaust return pipe connecting these drying chambers and hot air generating means; First and second exhaust holes provided at the top of the chamber for exhausting the interior of the room, first and second operating means for opening and closing the exhaust holes in association with the exhaust holes, and the first and second drying means First and second detecting means provided at the upper part of the chamber for detecting the state of room air, and the first and second operating means and the first and second detecting means are linked to each other according to a predetermined value. Control means for outputting a signal In the configuration of this drying device.

A mushroom shelf on which a large number of mushrooms are placed is accommodated in a drying room provided in multiple units, and hot air is supplied to each of the drying rooms to dry the mushrooms. When a detection signal from the detection means provided in the drying chamber is issued, the exhaust hole provided in the top of the drying chamber corresponding to the detection means that issued the signal is closed, and the flow of hot air to the drying chamber is regulated. In addition to suppressing overdrying of mushrooms,
A multiple mushroom drying method that promotes ventilation of hot air to other drying chambers in accordance with the regulation of hot air flow.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a multiple mushroom drying apparatus according to the present invention will be described with reference to the drawings.

In FIG. 1 and FIG. 2, A is a multiple type mushroom drying apparatus, which includes first and second drying chambers 1 and 2, hot air generating means 3, exhaust return pipes 4 and 5, and first and second mushroom drying apparatuses. It is basically composed of two exhaust holes 6, 7, first and second operating means 8, 9, first and second detecting means 10, 11, and control means 12.

The first and second drying chambers 1 and 2 are
A pair of left and right sides is formed in a box shape having a predetermined capacity, a predetermined heat insulating panel is stretched on the wall portion, and a mushroom consisting of a multi-stage net or the like in which many mushrooms such as shiitake mushrooms are arranged. A shelf 13 is provided so as to be freely drawn in and out, and openable doors 14 and 15 are hinged to a front side thereof. The above-mentioned hot air generating means 3 is provided between the first and second drying chambers 1 and 2 to supply hot air to the drying chambers 1 and 2 respectively. A hot air generating furnace 16 provided with a burner or the like at a lower portion, and the generated hot air is blown by a blowing member 17 such as a blower provided at an upper portion thereof to the hot air generating furnace 16 and the first and second drying units. It is sent to the first and second drying chambers 1 and 2 via hot air inlet pipes 18 and 19 connected to the lower side of the chambers 1 and 2.

The above-mentioned exhaust return pipes 4 and 5 connect the upper sides of the first and second drying chambers 1 and 2 and the upper side of the hot air generating means 3 so that the hot air used for drying is introduced into the hot air generating furnace 16. It is intended to improve the thermal efficiency by returning it, and a rotary damper 2 is installed inside.
0, 21 and the amount of exhaust gas returned from the drying chambers 1, 2 to the hot air generating means 3 is adjusted by opening and closing the dampers 20, 21.

The first and second exhaust holes 6 and 7 are
It is provided at the top of the first and second drying chambers 1 and 2 to exhaust the room.

The above-mentioned first and second operating means 8, 9
The opening / closing of the exhaust holes 6 and 7 is linked to the first and second exhaust holes 6 and 7, and a slide in which a number of predetermined ventilation holes are formed corresponding to the exhaust holes 6 and 7. By moving the dampers 22 and 23 in the lateral direction, the exhaust holes 6 and 7 are removed.
And the exhaust amount from the drying chambers 1 and 2 is adjusted.

The slide dampers 22, 2
Reference numeral 3 designates a member which can be remotely operated by an operating member such as a fluid cylinder. Operating members 24 and 25 such as rotary actuators are mounted on the shafts of rotary dampers 20 and 21 provided in the exhaust return pipes 4 and 5, respectively. It is preferable that the shaft and the slide dampers 22 and 23 are connected by a link to operate in conjunction with each other.

The first and second drying chambers 1, 2
In the top part, there are sub exhaust holes 2 on both sides of exhaust holes 6 and 7.
6 and 27 are provided, and when the interior of the room is forcibly evacuated, the opening or opening is adjusted by the operation of dampers 28 and 29 provided on the upper portion, and the operation is performed manually or automatically. The diameter is formed larger than the opening diameter of the exhaust holes 6 and 7.

The above-mentioned first and second detecting means 10, 1
Numeral 1 is provided above the first and second drying chambers 1 and 2 to detect the state of room air, that is, temperature and humidity, and uses a conventional temperature sensor or humidity sensor.

The control means 12 is linked to the first and second operating means 8 and 9 and the first and second detecting means 10 and 11 so that a predetermined value inputted to the control means 12 is obtained. , And a conventional computer or various control devices are used, and the related operation programs such as temperature, humidity, and drying time can be arbitrarily set.

In the figure, reference numeral 30 denotes a hot air generating means 3.
A wire net 31 for removing foreign matter is stretched at the entrance of the outside air intake provided at an upper portion of the hot air generating furnace 16, and a rotary damper 32 is pivotally supported therein.
The damper 32 is not required to be provided as necessary, so that the amount of outside air taken into the tank can be freely adjusted.

Reference numerals 33 and 34 denote flow straightening plates provided at the bottoms of the first and second drying chambers 1 and 2, respectively.
It is possible to prevent the amount of hot air supplied from 9 from increasing on the back side so that the hot air from the perforated plates 35 and 36 can be uniformly supplied to the room.

The first and second detecting means 1
Of the temperature sensors 0 and 11, the temperature sensors are provided below the drying chambers 1 and 2 near the connection of the hot air inlet pipes 18 and 19, or the sensor 10a provided near the blower 17 of the hot air generating means 3 is used. When the set temperature is detected, the burning operation of the burner in the hot air generating means 3 is stopped.

Reference numerals 37 and 38 denote intermediate blowing means linked to the middle of the first and second drying chambers 1 and 2 in the vertical direction, and a predetermined number of holes 37 and 40 formed in the side portions. A plurality of air ducts 41 and 42 are juxtaposed at intervals and the air duct 4
The hot air generating furnace 16 of the hot air generating means 3 and blowers 43 and 44 connected to the hot air generating means 3 are connected to the hot air generating furnace 1 and 42 via piping 45 and 46, respectively.

Thus, hot air can be supplied to the mushrooms placed in the drying chambers 1 and 2 on average.

Further, in FIG.
By opening the sliding-type transparent plate 48 with the inspection windows provided on the opening and closing doors 14 and 15, the dry state of the mushrooms can be inspected by the operator's hand without opening the opening and closing doors 14 and 15. Reduce indoor temperature loss due to hot air leakage.

Therefore, the multiple-type mushroom drying apparatus A and the method according to the embodiment of the present invention configured as described above have the following effects.

In the drying of the shiitake mushrooms, the first and second drying chambers 1 and 2 were each used to store shiitake mushrooms having different capacities and different water contents, that is, housed in the left and right drying chambers 1 and 2. In the case where the conditions of the shiitake mushrooms are different, the embodiment of the present invention is particularly exhibited. In this example, the first drying room 1 is housed so as to be almost full in all stages, and the second drying room FIG. 2 shows drying when only about half of the total volume can accommodate shiitake mushrooms.

First, the shiitake mushrooms to be processed are harvested when the weather is relatively favorable (day to day), and the setting differs depending on the water content, but the initial temperature of drying by the hot air generating means 3 is set to 45 ° C. After 8 to 10 hours, 60
Program the control means 12 to raise the temperature to ~ 65 ° C.

The humidity in the left and right drying chambers 1 and 2 is 25.
When the detection means 10 and 11 detect a value exceeding% to 30%, the control means 12 is programmed to operate the operation means 8 and 9.

At this time, even if the detecting means 10 and 11 detect that the exhaust gas temperature exceeds 70 ° C., for example,
It is set so that heating and drying are performed if it is 5% to 30% or less.

When the hot air generating means 3 is operated to send hot air from the lower side to the first and second drying chambers 1 and 2 from the lower hot air inlet pipes 18 and 19, respectively, the perforated plate 35 is formed. , 36 passes through the mushroom shelves 13 and rises through the shiitake mushrooms, and is released to the atmosphere through the exhaust holes 6 and 7 at the top. At this time, the core water of the mushrooms evaporates Then, air drying is performed.

Further, hot air is also sent from intermediate blowing means 37, 38 provided at an intermediate portion between the drying chambers 1, 2, so that the entire room is uniformly filled with hot air.

Then, as the drying progresses, the shiitake mushrooms in the second drying chamber 2 in which the amount of shiitake mushrooms is reduced by half is rapidly advanced.
Since the room temperature gradually rises and the amount of water evaporating from the shiitake mushrooms decreases, the second detecting means 11 provided in the second drying room 2 is operated at a predetermined temperature and / or humidity. , For example, a humidity of 30
%, The signal is transmitted to the second operating means 9 to close the second exhaust hole 7 with the slide damper 23, and the exhaust return pipe 5 is opened by operating the rotary damper 21 to release the hot air generating means. 3. Return the room air into the room.

Then, since the amount of exhaust gas in the second drying chamber 2 is smaller than the amount of air supply, a negative pressure is applied to the inside and the amount of air supply is suppressed, and the drying of the shiitake mushroom in the drying chamber 2 is suppressed. Is suppressed and air is supplied to the first drying chamber 1 to promote drying of the shiitake mushrooms in the drying chamber 1.

As a result, the shiitake mushroom housed in the second drying chamber 2 is prevented from being supplied with continuous hot air, is prevented from being overheated, and does not discolor or lose its taste and aroma. Are obtained, and furthermore, both drying chambers 1,
Contrary to 2, even if Shiitake mushrooms with high water content (Amako) are placed on one side and Shiitake mushrooms with low water content (Nichiriko) are placed on the other side and drying is started at the same time, both drying rooms 1,
The dried shiitake mushrooms are balanced.

Further, in the first drying chamber 1, the first detecting means 10 provided in the drying chamber 1 detects the temperature and / or the humidity of a predetermined value, so that the hot air generating means The operation of Step 3 is stopped and the operation is completed.

In the present embodiment, the drying chamber is shown as a pair of left and right doubles, but not shown.
Of course, the same operation and effect can be obtained even with a multiple type such as a quadruple type, and the operation of detecting the humidity and temperature and controlling the hot air generating means by the control means is performed in the mushroom drying chamber. Is carried out in the same manner even if it is a single type (only one type), and the same good drying effect can be obtained.

[0038]

As described above, the present invention is directed to a drying apparatus having a multi-stage type mushroom drying chamber, wherein the mushrooms contained in the respective drying chambers have different storage amounts and different water contents. Even if it is, the drying state of each drying chamber can be controlled, and a special effect that a drying process can always be performed in a fixed finished state can be achieved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a multiple mushroom drying apparatus according to the present invention.

FIG. 2 is a plan view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First drying room 2 Second drying room 3 Hot air generating means 4, 5 Exhaust return pipe 6 First exhaust hole 7 Second exhaust hole 8 First operating means 9 Second operating means 10 First detecting means 11 Second detecting means 12 control means 13 mushroom shelf

Claims (2)

[Claims] 1. A pair of left and right first and second drying chambers provided with a plurality of stages of mushroom shelves therein so as to be freely taken in and out, and hot air is respectively provided between the first and second drying chambers. Hot air generating means for supplying air, an exhaust return pipe connecting these drying chambers and the hot air generating means, and first and second exhaust air provided at the top of the first and second drying chambers for exhausting the indoor air. Holes, first and second operating means for opening and closing the exhaust holes in association with the exhaust holes, and first and second operating means provided above the first and second drying chambers for detecting a state of room air. Detecting means, and a control means for outputting a signal in accordance with a predetermined value in association with the first and second operating means and the first and second detecting means. Mushroom drying equipment. 2. An apparatus for drying mushrooms, wherein mushroom shelves on which a large number of mushrooms are placed are accommodated in drying chambers provided in a plurality, and hot air is supplied to these drying chambers to dry the mushrooms. When a detection signal from the detection means provided in the drying chamber is issued, the exhaust hole provided in the top of the drying chamber corresponding to the detection means that issued the signal is closed, and the flow of hot air to the drying chamber is regulated. A multiple mushroom drying method characterized by suppressing overdrying of mushrooms and promoting the ventilation of hot air to other drying chambers in accordance with the regulation of the flow of hot air.