JPH03102183A - Drier - Google Patents

Abstract

PURPOSE:To facilitate drying for multipurposes of vegetables, fruits, etc., in addition to cereals of rices, wheats by partitioning, for example, a storage tank by net shelves, passing dehumidifying air generated from a dehumidifier from the tank through the shelves, sucking and discharging it by an upper air discharger. CONSTITUTION:When a start switch is operated, sections except an upper air discharger 7, a dehumidifier 4, a moisture sensor 28, etc., of a direr 9 are started, and dehumidifying air is generated from the dehumidifier 4. This air is transversely passed from an air flow port 33 to a drying tank 4 through an air flow chamber 15 and an air discharging chamber 16, and sucked and discharged by a side air discharger 5. This discharging air is supplied and circulated from a suction inlet 32 to the dehumidifier 4 through front and rear circulation passages 6, and converted into dehumidifying air. Thus, cereals contained in a storage tank 2 are exposed with the dehumidifying air during flowing down from the tank 2 through a drying tank 3 to be dried. When vegetables and fruits are dried, the tank 2 of a drier body 1 is partitioned by net shelves 18, and the vegetables and fruits are placed on the shelves 18 to be dried.

Description

[Detailed description of the invention] Industrial applications This invention relates to a dryer.

Conventional technology In the past, while the grains were allowed to flow down from the storage tank in the upper part of the machine body to the drying tank, the dehumidified air generated by the dehumidifier was passed through the drying tank and sucked in by a side exhaust fan. By exhausting the air, the grains flowing down in the drying tank are exposed to the dehumidifying air and dried, and the exhaust air sucked and exhausted by the side exhaust fan is transferred from the front and rear return passages to the dehumidifying device. It was a dryer that reduced the amount of water to dehumidified air and converted it into dehumidified air.

Problems to be Solved by the Invention The grains stored in the storage tank in the upper part of the machine body flow down from this storage tank into the drying tank, while the dehumidified air generated from the dehumidifier passes through this drying tank. By sucking and exhausting air with the side exhaust fan, the grains flowing down the drying tank are exposed to this dehumidified air and dried. The air is returned to the dehumidifier through the return path and converted into dehumidified air.

This dryer is intended to be capable of easily drying vegetables, fruits, etc. in addition to rice and wheat grains for multiple purposes.

Means for Solving the Problems This invention provides a storage tank 2 for storing dry matter in the upper part of the machine body 1, a drying tank 3 in the lower part, and a dehumidifier 4 on one side of the machine body that generates dehumidified air. A side exhaust fan 5 is installed on the other side of the drying tank 3 to suck and exhaust the dehumidified air, and the side exhaust fan 5 sucks and exhausts the air from the front and rear return passages 6 The dehumidifying air is returned to the dehumidifying device 4 for drying, and an upper exhaust fan 7 is installed at the upper part of the storage tank 2 to draw and exhaust the dehumidified air from the drying tank 3 to the storage tank 2. 7
The structure of the dryer is such that the exhaust air sucked and exhausted is switched from the upper and lower return passages 8 to the front and rear return passages 6 and returned to the dehumidifier 4 for drying.

Effect of the Invention When drying grains such as rice, wheat, etc., the grains stored in the storage tank 2 in the upper part of the machine body 1 are drained from the dehumidifier 4 while flowing down from the storage tank 2 into the drying tank 3. The dehumidified air that is generated is passed through the drying tank 3 and sucked and exhausted by the side fan 5, so that the grains flowing down the drying tank 3 are exposed to the dehumidified air and dried. The exhaust air sucked and exhausted by the side exhaust fan 5 is returned to the dehumidifier 4 through the front and rear return passages 6 and converted into dehumidified air. At this time, the upper exhaust fan 7 in the upper part is in a stopped state.

When drying vegetables, fruits, etc., the inside of the storage tank 2 in the upper part of the machine body 1 is partitioned off with, for example, a net shelf. The dehumidified air from the drying tank 3 passes through the mesh shelf of the storage tank 2 and is sucked and exhausted by the upper exhaust fan 7, so that the garlic vegetables on the mesh shelf are exposed to this dehumidified air and dried. , and the exhaust air sucked and exhausted by the upper exhaust fan 7 is
The air is returned from the upper and lower return passages 8 through the front and rear return passages 6 to the dehumidifier 4 and converted into dehumidified air. At this time, the side exhaust fan 5 on the side is controlled to stop.

Effects of the Invention According to the present invention, either the side fan 5 or the upper wind blower 7 is started by the grains, vegetables, etc. to be dried, and when it is vegetables, the storage tank 2 is partitioned with a mesh shelf to dry the dried material. An embodiment in which multi-purpose drying is easily possible with this dryer as it is now possible to dry without circulating the It has a rectangular shape that is long in the front and rear direction, consisting of a board and left and right wall boards.
The front wall board is provided with a dehumidifier 4, a dryer 9, and an operating device 10 for starting and stopping the dehumidifier 4, and the rear wall board is provided with a side exhaust fan 5, a dryer 9, and an operating device 10 for starting and stopping the dehumidifier 4. This configuration includes an exhaust fan motor 11, a valve motor 12, etc. that rotate the side exhaust fan 5.

At the center of the lower part of the body 1, there is provided a grain collection gutter 13 in which a transfer spiral is pivoted in the front-rear direction, and on the upper side of this grain collection gutter 13, a drying tank 3 formed between ventilation mesh plates is arranged in parallel. At the bottom of each drying tank 3, there is a feed valve 14 that feeds out the grains and allows them to flow down.
A ventilation chamber 15 is formed between the insides of each drying tank 3 and communicated with the dehumidification device 4, and a ventilation chamber 16 is formed outside each drying tank 3. The valve motor l2 communicates with the side exhaust shaft 5, and the transmission mechanism 17 is connected to the valve motor l2.
The configuration is such that each delivery valve 14 is rotationally driven through the feed valve 14.

A storage tank 2 is formed on the upper side of each drying tank 3 and communicated with each other, and a removable net shelf 18 that partitions the inside of the storage tank 2 into a plurality of stages in the vertical direction is installed. The structure is such that the grains are loaded and dried, and the upper side of this storage tank 2 is provided with a ceiling plate 19 and a transfer gutter 20 that pivotally supports a transfer spiral, and the central part of this transfer gutter 2o supplies the transferred grains into this storage tank 2. A supply port is provided, and a diffusion plate 21 for uniformly dispersing and returning grains into the storage tank 2 is provided below the supply port. This configuration includes an upper exhaust fan motor 22 that rotationally drives the upper exhaust fan 7.

The grain raising machine 23 is installed in the front part of the front wall plate, and inside thereof, a packet conveyor 24 belt is stretched between the upper and lower boars, and a discharging cylinder 25 is provided between the upper end and the starting end of the transfer gutter 20. A supply gutter 26 is provided between the lower end and the terminal end of the grain collecting gutter 13 to communicate with each other.
3. The grain elevator motor 27 installed on the upper part moves the packet conveyor 24 belt, the transfer spiral in the transfer gutter 20, and the spreader plate 2.
1 and the transfer spiral in the collecting trough 13 are rotated via the belt of the bucket conveyor 24, and a moisture sensor 28 provided approximately at the center in the vertical direction detects grains being transported to the upper part by the packet conveyor 24. The moisture sensor 28 is configured to receive grains falling onto the ground, crush the grains under pressure, and at the same time detect moisture in the crushed grains. Each part of the moisture sensor 28 receives electrical measurement signals from the operating device IO. The moisture motor 29 is rotated by the transmission, and is driven to rotate by the rotation of the moisture motor 29.

The dehumidifier 4 has a box shape, and has an inlet 32 on the front wall plate of the box body, and an air outlet 33 on the rear wall plate, and the inlet 32 and the tip of the side exhaust fan 5 are connected to each other. A cylindrical reduction cylinder 30 is connected between the two to form a front and rear reduction passage 6, and a cylindrical upper reduction cylinder 31 is connected between the top end of the upper exhaust fan 7 and the upper part of the reduction cylinder 30. It has a structure in which upper and lower return passages 8 are connected, and when drying grains, the side exhaust fan 5
The exhaust air sucked and exhausted is supplied into the dehumidifier 4 from the inlet 32 through the front and rear return passages 6, and is converted into dehumidified air at a slightly higher temperature than the outside air in the dehumidifier 4. The dehumidified air flows from the air outlet 33, passes through the air blowing chamber 15, crosses each of the drying tanks 3, passes through each of the air exhaust chambers 16, is sucked and exhausted by the side exhaust fan 5, and is returned to the air.The cycle is repeated. At this time, the upper exhaust fan 7 is in a stopped state. Further, when drying vegetables and fruits, the exhaust air sucked and exhausted by the upper exhaust fan 7 is supplied into the dehumidifier 4 from the upper and lower return passages 8, the front and rear return passages 6, and the suction port 32. The dehumidified air is converted into dehumidified air with a temperature slightly higher than the outside air in this dehumidifier 4, and this dehumidified air is sent from the air outlet 33 to the air chamber 15.
, through each drying tank 3 and the storage tank 2 11? ■Record shelf 1
8, the air is sucked and exhausted by the upper exhaust air l5!7, and the circulation is repeated. At this time, the side exhaust fan 5 is in a stopped state.

The exhaust air sucked into the dehumidifying device 4 from the inlet 32 is adiabatically compressed from low-temperature low-pressure gas as a refrigerant to high-temperature high-pressure gas in a compressor 34 in order to convert it into dehumidified air with a temperature slightly higher than that of outside air. When it passes through the condenser 35, heat is removed and it changes into a high temperature, high pressure liquid.Then, the pressure is reduced to a low temperature, low pressure liquid at the expansion valve 36, and then when it passes through the evaporator 37, it absorbs heat. The refrigerant dehumidifies the exhaust air passing through the dehumidifier 4 by sequentially repeating this cycle.

The state of the exhaust air sucked into the dehumidifier 4 is that it is cooled when passing through the evaporator 37, moisture in the air condenses, and the absolute humidity is reduced, resulting in low-temperature, low-humidity air. The compressor 34 is configured to be rotated by a compressor motor 38, and this dehumidifying This configuration includes a dehumidifying fan 39 and a dehumidifying fan motor 55 that suck and blow air.

The operating device 10 has a box shape, and has a start switch 40 for installing the dryer 9 and the dehumidifying device 4, and a start switch 40 for starting the drying and discharging operations, and a stop switch 40 for stopping the dryer 9 and the dehumidifying device 4 on the surface plate inside the box. Switch 4l, Moisture setting switch 42 for setting the grain finishing target moisture according to the operating position, Switch setting switch 43 for switching to grain drying, vegetable and fruit drying, etc., detected grain moisture, detected drying air temperature, remaining drying time, etc. The configuration includes a display window 44 and a monitor display that alternately display
A drying control device 45 and a temperature control device 46 are provided inside, and each of the settings 42 and 43 is of a rotary switch type, and a predetermined value is set depending on the operating position.

The drying control device 45 includes an A-D converter 47 that converts the detection value detected by the moisture sensor 28 from A to D;
An input circuit 4 into which the converted value converted by the converter 47 is input.
8, each switch 40, 4l, each setting 42, 43
An input circuit 49 into which the operation is input, and each of these input circuits 4
This configuration includes a CPU 50 that performs arithmetic and logical operations, comparison operations, etc. on various input values input manually from the CPU 50, and an output circuit 51 that receives and outputs various commands issued from the CPU 50.

The temperature control device 46 detects the temperature of the set and stored dehumidified air generated from the dehumidifying device 4 by the temperature sensor 52 and the humidity detected by the humidity sensor 53 in A-D. An A-D converter for conversion, an input circuit to which the converted value converted by the A-D converter is input, and the CPU 50 for performing arithmetic and logical operations, comparison operations, etc. on various input values input from this input circuit. The configuration includes an output circuit 5l that receives various commands from the CPU 50 and outputs them.

The drying control by the drying control device 45 is performed as follows. When the moisture setting knob 42 is operated, this operating position is input to the CPU 50, and the finishing target moisture of the grain is set by this input. The grain moisture detected by the moisture sensor 28 is input to the CPU 50, and the input detected grain/grain moisture is compared with the set finishing target moisture, and when the detected grain moisture is the same as the set finishing target moisture, this The structure is such that the drying rack 9 is automatically stopped under automatic control by a drying control device 45, and since vegetables and fruits are not circulatively dried, the vegetables and fruits are taken out from inside the machine body 1, their moisture content is measured, and the moisture content is adjusted to a predetermined level. When the stop switch 4 is reached, the stop switch 4
1 to manually stop the dryer 9.

When the switching setting knob 43 is operated to the grain position, this operating position is input to the CPU 50, and the rotation of the upper exhaust fan motor 22, which rotationally drives the upper exhaust fan 7, is stopped and controlled by this human power. The wind fan 7 is not driven to rotate, and at the same time, each part of the dryer 9 is controlled to be driven to dry grains. When operated, this operating position is input to the CPU 50, and this input controls the rotation of the exhaust fan motor l1 that rotationally drives the side exhaust fan 5 to be stopped, so that the side exhaust fan 5 is not driven to rotate. At the same time, each part of the dryer 9 is configured to be rotationally controlled to dry vegetables, fruits, etc.

Temperature control by the temperature control device 46 is performed as follows. Dehumidified air, which is set and stored in the CPU 50, is generated from the dehumidified device 4, and the temperature of this dehumidified air is detected by the temperature sensor 52. Humidity is detected by the humidity sensor 53 and input to the CPU 50, and the CPU 50 compares the detected temperature and detected humidity with the set temperature and set humidity to determine if the temperatures are different. In order to make the humidity the same, the heater 54 provided in the dehumidifier 4 is energized, and the energization time is controlled. The compressor motor 38 is rotationally driven.
The rotation speed of the compressor 34 is controlled to increase or decrease, and the rotation speed of the compressor 34 is controlled to increase or decrease.

Hereinafter, the operation of the above embodiment will be explained.

When drying grains, drying can be started by operating the moisture setting knob 42 of the operating device 10 to a predetermined position, operating the switching setting knob 43 to the grain position, and operating the start switch 40 to start drying. Upper ventilation of machine 9 I! The parts other than 7, the dehumidifier 4, the moisture sensor 28, etc. start, and dehumidified air is generated from the dehumidifier 4, and this dehumidified air is sent from the air outlet 33 to the air blowing chamber 15.
The air passes through the drying tank 3, passes through the air exhaust chamber 16, is sucked and exhausted by the side exhaust fan 5, and this exhausted air is supplied and returned to the dehumidifier 4 from the inlet 32 through the front and rear return passages 6. By converting the air into dehumidified air, the grains stored in the storage tank 2 are exposed to this dehumidified air while flowing down from the storage tank 2 into the drying tank 3 and are dried, and are then sent to the bottom by the delivery valve l4. The grain is fed out and flows down from inside the collection gutter 13 through the supply gutter 26 to the grain hoisting machine 2.
The packets are transferred into the container 3 by the transfer spiral at the bottom, are transferred to the upper part by the packet conveyor 24, are passed through the dispensing tube 25, and are then transferred to the transfer gutter 20.
The moisture sensor 28 is supplied from the transfer gutter 20 onto the diffusion plate 2l by the upper transfer spiral, and is uniformly diffused and supplied into the storage tank 2 by the diffusion plate 2l, and is circulated and dried to form the moisture sensor 28. When the moisture content of the grains is the same as the target moisture content set by operating the moisture setting device 42, the drying control device 45 of the operating device 1O automatically controls the drying machine 9 to stop the grain drying process. Stop drying.

When drying vegetables, fruits, etc., the inside of the storage tank 2 of the machine body 1 is partitioned with a mesh shelf 18, the vegetables, fruits, etc. are placed on the mesh shelf l8, and the switching setting 43 of the operating device 10 is set to dry the vegetables. and the fruit position, and by operating the start switch 40 that starts drying, each part of the dryer 9 other than the side exhaust fan 5 and the moisture sensor 28, the dehumidifier 4, etc. are started, Dehumidified air is generated from this dehumidifying device 4, and this dehumidified air is sent from the air outlet 33 to the air chamber 15. The air passes through the drying tank 3, the net shelf 18, and is sucked and exhausted by the upper exhaust fan 7, and this exhaust air passes from the upper and lower return passages 8, through the front and rear return passages 6, and from the suction port 32 to the dehumidifier 4. By being supplied back and converted into dehumidified air, the vegetables, fruits, etc. on the net rack 18 are exposed to this dehumidified air and dried, and when a predetermined moisture content is reached, the stop switch 41 is operated to start the dryer 9. Manually stop to stop drying vegetables, fruits, etc.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is an overall side view of the dryer, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a block diagram. Partial rear view of the dryer, No. 5
The figure is a partially cutaway front view of a part of the dryer. Explanation of symbols I Aircraft body 3 Drying tank 5 Side exhaust fan 7 Upper exhaust fan Storage tank Dehumidifier front and rear return passageway Upper and lower return passageway License applicant name Iseki Agricultural Machinery Co., Ltd. Representative Hisashi Mizu Tae

Claims (1)

[Claims] A storage tank 2 for storing dry matter is provided in the upper part of the body 1, and a drying tank 3 is provided in the lower part.A dehumidifier 4 that generates dehumidified air is provided on one side of the body 1, and this dehumidified air is sent to the other side. A side exhaust fan 5 is provided to ventilate the drying tank 3 and suck and exhaust the air, and the exhaust air sucked and exhausted by the side exhaust fan 5 is returned to the dehumidifier 4 from the front and rear return passages 6 for drying. An upper exhaust fan 7 is provided at the upper part of the storage tank 2 to suck and exhaust the dehumidified air from the drying tank 3 to the storage tank 2. This dryer performs drying by switching from the passage 8 to the dehumidifying device 4 through the front and rear return passages 6.