JPH06201260A - Method and apparatus for storing grain - Google Patents

Abstract

PURPOSE:To provide a method and an apparatus which enable the storing of grain after the drying maintaining a high quality over a long period of time. CONSTITUTION:A grin storage chamber 3 and an air chamber 4 are demarcated and formed with a breathing wall 2 below a closed storage bottle 1. An air chamber 4 is made so as to communicate with an upper space of the grain storage chamber 3 with an air circulation path 5. A cool air generator 6 is provided in the air circulation path 5. A grain temperature sensor 8 is provided in the grain storage chamber 3 of the storage bottle 1. When the temperature exceeding a specified value is sensed with the grain temperature sensor 8, the cool air generator 6 is operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain storage method and apparatus for storing dried grains that have been dried to a predetermined moisture value for a long period of time without impairing their quality.

[0002]

BACKGROUND OF THE INVENTION Grains, particularly rice and wheat, are stored under certain conditions after being dried to a water content that is unlikely to deteriorate. Usually, for rice, after drying, hulled rice and grain-sorted brown rice with a uniform grain size are packed (30 Kg, 60 K
g, It, etc.) and then stored in a warehouse. And low temperature warehouse (15 ℃ or below) to prevent quality deterioration.
It is recommended to store in. On the other hand, the paddy is stored in a country elevator silo, but when the outside temperature dropped, the air temperature of the paddy was lowered with a blower while changing the silo of the dried paddy to lower the grain temperature. After that, a method of storing in a silo having a heat insulating property is adopted.

[0003]

As described above, in the method of storing the paddy in the silo, since it is the bulk storage without bagging, it is easy to automate large-scale processing and cargo handling, and the equipment It has many advantages, such as the equipment area can be reduced by three-dimensionalization and labor is not required for stacking grains, but it is pointed out that it is difficult to find altered paddy. In addition, in order to keep good quality of the stored paddy, the grain temperature is usually set to 20 ° C or lower, and the grain temperature is measured and recorded every day except when the ambient temperature is 15 ° C or lower. If there is a risk of dew condensation in the silo due to the decrease of the
The daily operation is extremely complicated.

The present invention mainly deals with the above-mentioned actual situation of storage of paddy, and the dried grain is stored for a long period of time while maintaining good quality without requiring any complicated operation. It is an object of the present invention to provide a grain storage method and apparatus capable of storing the grain.

[0005]

The technical means according to the present invention for achieving the above object are as follows. That is, the grain storage method according to the present invention provides a closed storage bin for accumulating and storing grains, and a closed air chamber at a portion such as a lower part of the storage bin that is buried in the accumulated grain layer. It is characterized in that low-temperature air is circulated and circulated between the storage bin and the storage bin through the grain deposition layer of the storage bin.

Further, the grain storage apparatus according to the present invention forms an air chamber separated from an upper grain storage chamber by a ventilation wall in the lower part of a closed storage bin for accumulating and storing grains.
This air chamber and the upper space of the grain storage chamber are communicated with each other by an air circulation path, a cooling air generator is provided in an air circulation path formed by the air chamber and the air circulation path, and a grain temperature sensor is provided in the grain storage chamber of the storage bin. When the grain temperature sensor detects a temperature equal to or higher than a certain temperature, the cooling air generator is activated.

[0007]

According to the method for low temperature dry storage of grains according to the present invention, since the cooling air is circulated and circulated through the grains stored in the closed storage bottle, even if the cooling grain is exposed to the cooling air The water content of the circulating cooling air is maintained constant. For this reason, the grains being stored are not dried by the cooling air, and the grains maintain good quality for a long period of time. The cooling air may be circulated when the grain temperature during storage exceeds a certain value.

According to the low temperature dry storage apparatus for grains according to the present invention, a grain temperature sensor is provided in the grain storage chamber of the storage bottle,
When the grain temperature sensor detects a temperature equal to or higher than a certain temperature, the cooling air generator is operated, so that the cooling air generator is operated only when necessary. For this reason, the quality of the grain during storage is properly maintained, wasteful power consumption and power consumption are eliminated, and the grain is stored in a good state under energy saving. Further, since the cooling air is circulated in a closed circulation, each time the circulation is repeated, the temperature approaches a predetermined temperature even when the outside air temperature is high, so that the grain can be stored well. Further, since the cooling air is circulated in a closed circulation and the temperature is lowered every time the circulation is repeated, a large amount of grain can be efficiently stored in the cooling air generator having a small capacity.

[0009]

EXAMPLES Examples will be described with reference to the drawings. The drawings illustrate a grain storage device according to the present invention. Reference numeral 1 denotes a storage bottle, and the storage bottle 1 is a hermetically sealed container, the lower portion of which is vertically divided by a ventilation wall 2, the upper portion of which is a grain storage chamber 3, and the lower portion of which is an air chamber 4. Air chamber 4
And the grain storage chamber 3 are connected by an air circulation path 5,
A cooling air generator 6 is built in the air circulation path 5.
In the grain storage chamber 3, grains 7 dried to a predetermined water content are stored in a pile. A grain temperature sensor 8 is provided in the grain storage chamber 3. When the grain temperature sensor 8 detects that the grain temperature is equal to or higher than a predetermined grain temperature (for example, 20 ° C.), the cooling air generation device 6 operates. , The cooling air is circulated from the air chamber 4 to the grain storage chamber 3 through the air circulation path 5, and the grains 7 being stored are stored.
The cooling air is circulated and flowed through the layers of. 9 is an elevator, 10 is a grain spreader,
The grain thrown into the hopper of the elevator 9 is the grain spreader 1
By 0, they are evenly accumulated and stored in the grain storage chamber 3. In addition, the outer periphery of the storage bottle 1 has a heat insulating structure with a heat insulating wall,
If the influence of the outside air temperature is reduced, the efficiency of the cooling air generation device 6 can be further improved.

According to the grain storage apparatus configured as described above, the grain temperature sensor 8 is provided in the grain storage chamber 3 of the storage bin 1, and the grain temperature sensor 8 detects a temperature higher than a certain temperature. Then, the cooling air generator 6 operates, so that the quality of the grain during storage is properly maintained. Further, since the cooling air flows by forming a closed circulation path constituted by the air chamber 4, the air circulation path 5 and the grain storage chamber 3, it approaches a predetermined temperature each time the circulation is repeated even when the outside temperature is high, and Storage will be good.

[0011]

According to the present invention, the dried grain can be stored for a long period of time while maintaining good quality without any complicated operation.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a grain storage device according to the present invention.

[Explanation of symbols]

 1 Storage Bin 2 Ventilation Wall 3 Grain Storage Room 4 Air Chamber 5 Air Circulation Path 6 Cooling Air Generator 7 Grain 8 Grain Temperature Sensor 9 Elevator 10 Grain Diffuser

Claims (2)

[Claims] 1. A hermetic storage bin for accumulating and storing grains, and a hermetic air chamber provided at a portion such as a lower portion of the storage bin to be buried in the sediment grain layer, between the air chamber and the storage bin. A low-temperature dry storage method for grains, characterized in that low-temperature air is circulated and circulated through the grain deposition layer of a storage bottle. 2. An air chamber, which is separated from an upper grain storage chamber by a ventilation wall, is formed in a lower portion of a closed storage bin for accumulating and storing grains, and the air chamber and the upper space of the grain storage chamber are formed. A cooling air generator is provided in the air circulation path formed by the air chamber and the air circulation path, a grain temperature sensor is provided in the grain storage chamber of the storage bin, and a temperature above a certain temperature is provided by the grain temperature sensor. The grain storage device is characterized in that the cooling air generator is activated when is detected.