JPH06313678A - Cereal drying storage warehouse - Google Patents

Abstract

PURPOSE:To efficiently perform cereal drying and storing operations without noise public pollution by arranging a blower in a ventilation chamber of a cereal drying storage warehouse, arranging a heat source out of the warehouse, and connecting the blower to the heat source via an air guide passage. CONSTITUTION:A cereal drying storage warehouse 1 installed at an outdoor comprises a ventilation floor 3 laid on an inner bottom through a ventilation chamber 2, and a drying chamber 4 formed above the floor 3. The warehouse 1 further comprises a blower 8 arranged in the chamber 2. Further, the warehouse 1 comprises an air guide passage 16 connected to a suction side of the blower 8 and connected to a heat exchanging chamber 15, and a heat source 17 arranged in the chamber 15 to heat the atmosphere sucked by the blower 8. Thus, blowing noise of the blower 8 is shut OFF, and corrosion due to wind and rain is eliminated. On the other hand, a discharge port 19 of a discharge passage 18 connected to a discharge side of the blower 8 is externally opened, and a pressure discharge port 20 is opened on the way. The port 20 is opened only at the time of blocking the passage 18 by a switching damper 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention distributes heated air obtained by a heat exchange action to grains stored in an outdoor dry storage from below to above or below from above to make grains. While drying to uniform moisture,
The present invention relates to a grain dry storage that can store dried grains for a long period of time in a good taste state without impairing quality.

[0002]

2. Description of the Related Art Conventionally, a grain (container) loaded in a tank is circulated and fluidized by operating a loading conveyor, a vertical auger, a grain carrier and a grain lifting machine. While being dried by circulating the drying air obtained by the hot air generator upward through the ventilation floor, and then when the grain is dried to a predetermined moisture, a stake conveyor, a vertical shaft auger, a grain conveying device and With the operation of the fried machine stopped and the grain in a stationary state, the natural wind was circulated upward from below, and the grain was stored while performing finish drying. Prior to the filing of the present application, for example, JP-B-63-40579
It is described in Japanese Patent Laid-Open Publication No. JP-A No. 1993-44, and is publicly known.

[0003]

By the way, in this type of conventional drying method, the drying operation and the storage operation of the grain are carried out while the drying air and the natural air are blown upward while being blown upward from the entire surface of the ventilation bed. Is. However,
Since a considerable amount of grains are stored in the grain tank in a state of being piled up high, how the grains can be circulated and fluidized through a grain elevator, or stirred and fluidized by a vertical auger. In addition, the drying air that is forced to be sent upward from the entire ventilation floor is strongly blown and the lower-layer grains dry faster than the upper-layer grains. In order to prevent the reciprocating horizontal axis auger and the lower end of the vertical axis auger from colliding, the phenomenon that the grains accumulated on the ventilation floor at the same height as the height of the horizontal axis auger is in an unstirred state, further, If an air passage of a certain size is once formed in the accumulated grain layer, the air blows through above this air passage and sends a uniform air flow upward from the entire ventilation floor. Phenomena such as not being able to More Huh underlying grain becomes over-dry state Rika, hot air generator comprising a furnace and blower,
Due to the fact that it is installed outdoors, there is a problem that the noise during the dry storage operation is large and causes noise pollution, as well as many failures due to corrosion due to wind and rain, and poor durability.

According to the present invention, a blower is housed in a ventilation chamber, and a heat source device is installed outside the refrigerator so that dry storage work can be effectively achieved in a silent state, and corrosion due to wind and rain is prevented. Permitting to increase the durability, the switching damper and the simple switching operation of the damper allow the warmed air or the outside air to flow to the accumulated grain from below or above and evenly without being overdried. It is an object of the present invention to provide a grain dry storage which can be dried or can be stored for a long period of time in a good taste state without damaging the quality by using the same dry storage.

[0005]

In order to achieve the above object, in the grain dry storage of the present invention, the invention of item 1 is provided in a ventilation chamber provided on the bottom side of an outdoor type dry storage.
The air intake side stores a blower connected to a heat source device installed outside the refrigerator via an air guide passage, and the discharge side of the blower is connected to the ventilation chamber or the outside by a switching operation of a switching damper.

According to the second aspect of the invention, the heat exchange chamber and the air guide passage are provided in the ventilation chamber provided on the bottom side of the outdoor type dry storage, the intake side is provided outside the storage, and the heat source device is provided inside. To store the blower connected through, the discharge side of the blower is connected to the ventilation chamber or the outside by the switching operation of the switching damper, the lower end side of the connecting duct whose one end is connected to the upper part of the dry storage is the heat exchange chamber. In addition to being connected, a suction port that can be freely opened and closed is provided in the middle of the air guide passage located in the ventilation chamber.

According to the third aspect of the invention, an intake port and a pressure feed / exhaust port are opened on the lower end side of the connecting duct connected to the heat exchange chamber, and the intake port and the pressure feed / exhaust port are switched between dampers. The openings are switched alternately.

[0008]

In FIG. 1 and FIG. 2, when it is desired to carry out the drying operation by supplying the warm air from the whole surface of the ventilation chamber by pressure-feeding the accumulated grains in the dry storage from the lower side to the upper side (in the direction of the solid line arrow), first, the switching damper is used. A switching operation of 21 puts the discharge side of the blower in a connected state with the ventilation chamber, and the turning operation of the damper 25 closes the intake port to open the pressure supply / exhaust port, and at the same time, the suction port provided in the middle of the air guide passage Damper 27
Turn it to close it.

Next, under the above-mentioned condition, after storing a predetermined amount of grains in the dry storage, if the blower and the heat source device are operated, the suction action of the blower causes suction through the heat source device into the air guide passage. The generated outside air is heated by heat exchange with the heat source device to form heated air at an appropriate temperature and is pressure-fed into the ventilation chamber from the discharge side of the blower. After being pumped, it is finally exhausted to the outside from the pumping exhaust port through the connecting duct.

Therefore, the grain stored in the dry storage is dried to a predetermined water content by the warm air flowing upward from below. And when you want to store the grain dried by the above operation using the same dry storage,
If the operation of the heat source device is stopped in the above-mentioned state and only the outside air is circulated from the lower part to the upper part with respect to the dry grain, the dry grain is stored for a long time without degrading the quality.

Next, in FIG. 1 and FIG. 2, when it is desired to carry out the drying work by sucking and circulating the warmed air from the upper side to the lower side (in the direction of the chain line arrow) with respect to the accumulated grains, first, the switching damper 21 is switched to blow the blower. The discharge side of the blower is disconnected from the ventilation chamber to connect the discharge side of the blower to the outside through the suction / exhaust port, and the rotating operation of the damper 25 opens the intake port and closes the pressure / exhaust port, and then the suction port. The blower and the heat source device are operated under the condition that the damper 27 is opened by the turning operation and the air duct is closed at the same time.

By the way, the warmed air that has been heat-exchanged with the heat source device in the heat exchange chamber by the suction action of the blower is sucked from the intake port to the upper side of the dry storage through the connecting duct, and then is accumulated in the accumulated grain. On the other hand, it is sucked and distributed downward from above, and is sucked into the ventilation chamber. Then, the dust exhausted after being sucked into the ventilation chamber and dried is sucked from the suction port to the intake side of the blower, and then discharged from the discharge side to the outside through the exhaust port.

Therefore, the grain stored in the dry storage is dried to a predetermined moisture by the warm air sucked and distributed from the upper side to the lower side. Then, when it is desired to store the grain dried by the above-mentioned operation using the same possible storage, the operation of the heat source device is stopped in the above-mentioned state, and only the outside air is suction-flowed from the upper side to the lower side with respect to the dried grain. If so, dried grains can be stored for a long period of time without degrading the quality.

As described above, the flow direction of the heated air can be easily changed to the pressure feeding direction or the suction direction by operating the switching damper 21 or the dampers 25 and 27. Therefore, the air blowing direction can be changed according to the dry state of the grain. The grain can be uniformly dried or stored by circulating it in the pressure feeding direction or the suction direction.

[0015]

EXAMPLES Examples will be described with reference to the drawings. 1 to 3 show an embodiment of a grain dry storage of the present invention, in which FIG. 1 is a partially cutaway vertical front view, and FIG. 2 is a partially cutaway main part. FIG. 3 is a vertical enlarged front view of FIG. 3, and FIG. 3 is a cross-sectional enlarged plan view of a main part with a part cut away, where 1 is a cylindrical dry storage installed outdoors and is located on the bottom side in the dry storage 1. A perforated plate-shaped ventilation floor 3 is laid horizontally through the ventilation chamber 2, and a drying chamber 4 for accommodating grains is provided above the ventilation floor 3. Ventilation floor 3
A horizontal axis discharge auger 5 that revolves around the upper surface of the ventilation floor 3 is installed horizontally in the upper part of the tray to convey the grains in the drying chamber 4 toward the discharge port 6 opened at the central position of the ventilation floor 3. At a position below the horizontal axis discharge auger 5, a conveyor type conveyor belt 7 for taking over the grain transferred to the discharge port 6 by the horizontal axis discharge auger 5 and transporting it to the outside of the dry storage 1 is rotatably suspended. It has been turned. A blower 8 of a pressure feeding type is stored and installed inside the ventilation chamber 2. Reference numeral 9 is an input device for inputting grains into the dry storage 1. In the drying chamber 4, a horizontal shaft 12 having a base end portion as an axis of revolution rotation and the other end portion revolving along an annular guide rail 13 provided on an inner peripheral surface of the side wall 10 of the dry storage 1.
And a plurality of vertical shaft augers 14 that rotate while reciprocating between the central portion and the side wall 10 along the horizontal shaft 12 are housed. Reference numeral 15 denotes a heat exchange chamber provided on one side of the lower portion of the dry storage 1, and the other end side of the air guide passage 16 whose one end is connected to the intake side of the blower 8 is connected to the heat exchange chamber 15. Heat exchange room 1
A heat source device 17 composed of a heater or the like for converting outside air sucked into the intake side of the blower 8 through the heat exchange chamber 15 from the outside into the intake side of the blower 8 by the heat exchange action is provided in the inside 5. is set up. Therefore, since the blower 8 is stored in the ventilation chamber 2 and the heat source device 17 is installed outside the refrigerator, noise pollution due to the blower 8 can be prevented, corrosion due to wind and rain can be eliminated, and durability can be increased. The exhaust port 19 on the front end side of the discharge passage 18 connected to the discharge side of the blower 8 is opened to the outside, and the pressure feed discharge port 20 is opened in the middle of the discharge passage 18 to open the pressure feed discharge port 20. Discharge path 1
A switching damper 21 rotatably and rotatably mounted in the opening 8 opens the discharge passage 18 only when the discharge passage 18 is closed so that the warm air discharged from the blower 8 is forced into the ventilation chamber 2. 22
Is a connecting duct whose upper end side is connected to the upper side of the dry storage 1 and whose lower end side is connected to the heat exchange chamber 15 through the intake port 23, and below the connecting duct 22 which opens the intake port 23. The pressure supply / exhaust port 24 is opened. A pivotally adjustable damper 25 is mounted on the inside of the connecting duct 22 at the opening boundary position between the intake port 23 and the pressure supply / exhaust port 24, and the switching operation of the damper 25 causes the intake port 23 and the pressure supply / exhaust port 24 to be connected to each other. Alternately open the switch. Reference numeral 26 denotes a suction port that is opened at an appropriate position of the air guide passage 16 located inside the ventilation chamber 2, and the suction port 26 guides air by a damper 27 that is mounted in the air guide passage 16 so as to be rotatable and adjustable. It is configured to be opened when the passage 16 is in the closed state and closed when the air guide passage 16 is in the conductive state.

[0016]

Since the present invention is constructed as described above, it has the following effects. Stores the blower in the ventilation room provided on the bottom side of the dry storage,
Since the heat source device was installed outside the refrigerator, and the blower and the heat source device were connected via the air duct, the grains stored in the dry storage were pressure-fed by the heated air generated by heat exchange with the heat source device. Even if it is dried or when storing dried grains, it may be possible to efficiently perform the above-mentioned drying or storing work in a silent state without generating noise pollution, or if the blower is corroded by wind and rain. It is possible to prevent the occurrence of damage, and it is possible to increase durability without causing a failure. Moreover, in the present invention, the direction of air blown by the blower is adjusted by the switching operation of the switching damper and the damper so as to be the pressure-feeding direction or the suction direction, and the warm air is fed from below to the grains stored in the dry storage. In addition, it is possible to dry it while flowing it from the upper side to the lower side while circulating it accurately at all times, and it is possible to reliably prevent only the lower-layer grain or the upper-layer grain from being overdried, and to uniformly dry the entire grain. Of course, the same dry storage can be used to store dry grains for a long period of time in a good taste state without impairing quality due to the combined action of the forced air ventilation and suction air ventilation of the outside air.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a grain dry storage with a part cut away.

FIG. 2 is an enlarged vertical sectional front view of a main part of a grain dry storage with a part cut away.

FIG. 3 is an enlarged cross-sectional plan view of a main part of a grain dry storage with a part cut away.

[Explanation of symbols]

 1 Grain Dry Storage 2 Ventilation Room 8 Blower 15 Heat Exchange Room 16 Air Duct 17 Heat Source Device 18 Discharge Path 19 Exhaust Port 20 Pressure Feeding / Discharging Port 21 Switching Damper 22 Connecting Duct 23 Inlet 24 24 Pressure Feeding Exhaust 25 Damper 26 Suction Inlet 27 Damper

Claims (3)

[Claims] 1. A blower having an intake side connected to a heat source device installed outside the store via an air guide path is housed in a ventilation chamber provided on the bottom side of an outdoor dry storage, and the discharge side of the blower is , A grain dry storage characterized by being connected to the ventilation chamber or the outside by the switching operation of the switching damper. 2. An air-bathing chamber provided on the bottom side of an outdoor type dry storage, which houses a blower having an intake side provided outside the storage and a heat exchange chamber having a heat source device inside, which is connected via an air guide passage. Then, the discharge side of the blower is connected to the ventilation chamber or the outside by the switching operation of the switching damper, and the lower end side of the connecting duct whose one end is connected to the upper part of the dry storage is connected to the heat exchange chamber, and is connected to the ventilation chamber. The grain dry storage is characterized in that a suction opening that can be freely opened and closed is provided in the middle of the wind guide path. 3. An intake port and a pressure supply / exhaust port are opened on the lower end side of the connecting duct connected to the heat exchange chamber, and
3. The grain dry storage according to claim 2, wherein the intake port and the pressure supply / exhaust port are alternately opened by a switching operation of a damper.