JPS6243738B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in grain humidity control devices and methods of using the same.

Conventionally, the moisture content of grain is the standard moisture content (14 to 15
%), it is known to supplement moisture to bring it to the standard moisture content, but in both cases, moisture is added intermittently to each grain of the same grain, and Tempering treatment is performed by setting up a long standing process, then adding a large amount of water at once within a short period of time, tempering with a long standing time, and repeating water addition again intermittently. It is customary to perform intensive humidification. That is, it has become customary to provide a conditioning process that is significantly longer than the humidification process, and to perform humidity conditioning by alternately repeating these two types of processes. The grains develop cracks due to this intermittent addition of large amounts of water, and once cracks occur, it is impossible to restore the damaged grains to complete grains no matter how long tempering is performed. In particular, white rice does not have a wax coating like brown rice does, so the moisture from intermittent intensive humidification is instantaneously absorbed into the rice grain, resulting in significant cracking due to moisture expansion.

The present invention rationalizes the total time of such humidification time and tempering time, and continuously humidifies the differentiated trace amount of moisture obtained by dividing the amount of added moisture to be supplemented by the total time, and forms the grain layer used for the canopy. In principle, most of the time is spent in the humidity conditioning process of adding water, except for a small tempering time, and stable humidification without waves is performed throughout the entire process, making safe and crack-free moisture conditioning efficient. In order to achieve the desired humidity control, a humidity control chamber is constructed with a large number of porous walls to fill and flow grains, and an air supply path and an air exhaust path are provided between each humidity control chamber to serve as a passage for moist air. The object of the present invention is to provide a grain humidity control device in which a conditioning chamber having a much smaller volume than the humidity control chamber is provided in the upper part of the chamber to stratify a grain layer to prevent air leakage, and a method for using the same. It is.

To explain the present invention with reference to embodiment diagrams, grain tank 1
A plurality of ventilation porous walls 2 are erected at appropriate intervals inside the grain tank 1, and a plurality of ventilation holes are provided in communication with a ventilation chamber 3 and a ventilation chamber 4 provided on both outer walls of the grain tank 1, respectively. A plurality of humidity control chambers 6A, 6B, 6C, 6 are provided with a chamber 5 and the ventilation chambers 5 are arranged on both sides thereof.
D are set up in parallel, and each of the humidity control chambers 6A to 6D is provided with an upper grain tank section 7 on which a grain layer is layered as a canopy to prevent air leakage, and the total volume of the grain tank section 7 is equal to The humidity control chambers 6A, 6B, 6C, and 6D are designed to have a smaller volume than the total volume of the humidity control rooms 6A, 6B, 6C, and 6D. Each of the humidity control rooms 6A to D
A discharge valve 9 of a rotary vane wheel is attached to the lower discharge port 8 of each rotor, and the grains flowing down from the discharge valve 9 are transferred to the elevator 12 via the screw conveyor 11 of the flow grain tank 10.
The grains are fried and returned to the upper grain tank section 7. The air supply chamber 3 has an on-off valve 13 that switches between air paths A and B.
The air blower 1 of the humidifying device is
5 and a humidifier 16, and the exhaust chamber 4 has an on-off valve 1 for switching its air paths C and D.
7 and an exhaust pipe 19 provided with an exhaust fan 18. Further, a scatterer 21 is rotatably attached to the supply port 20 in the upper part of the grain tank 1 to allow the grains to flow down uniformly. 22 is an electromagnetic switch that opens and closes each of the on-off valves 13 and 17.

With the above-mentioned configuration, the raw grain (white rice) is lifted into the grain tank 1 by the elevator 12, and each humidity control room 6
A, 6B, 6C, and 6D are fed to the illustrated position of the upper grain tank section 7 where a grain layer is layered to form a canopy to prevent air leakage. Next, the on-off valve 13 of the air supply pipe 14 is operated to close the air passage B on the air supply side and the air passage A is opened, and the on-off valve 17 of the air exhaust pipe 19 is operated to close the air passage B on the air exhaust side. When the device is started by closing air path D and opening air path D, the humid air sent from the humidifier will flow through air path A.
Flows into each humidity control chamber 6A to 6D in the direction of the solid line arrow in the figure, and is discharged from the exhaust side air path D.
During this time, the grains in the grain layer formed in each chamber are humidified from one direction. In addition, each on-off valve 1
3 and 17 to open the air supply side air passage B and the air exhaust side air passage C, respectively, the humid air sent from the humidifier flows through each humidity control room 6A to D in the direction of the dotted line arrow in the figure. The grains in the grain layer are each moisturized from opposite directions, and the entire grain layer is moistened and conditioned substantially uniformly and in the same amount by so-called alternating ventilation. The grains in each humidity control chamber 6A to 6D are sequentially discharged into the lower grain tank 10 by the rotation of each discharge valve 9, and are passed through the screw conveyor 11, elevator 12, and scatterer 21 to the upper grain tank 7. will be returned to.

As described above, according to the present invention, by using the process in which the tempering time is shortened as much as possible and the humidification process, most of the time is used for the effective humidity control process of adding moisture, and humidity control unevenness does not occur. This has the remarkable effect of efficiently carrying out safe humidity control, and thereby ensuring smooth and rapid mass production of high-quality tempered polished rice without any damaged or damaged grains.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a partially cutaway side view of the entire device, FIG. 2 is a vertical sectional view thereof, and FIG. 3 is a plan sectional view thereof. 1... Grain tank, 2... Ventilation porous wall, 3... Air supply room, 4... Ventilation chamber, 5... Ventilation room, 6A, 6B,
6C, 6D... Humidity control room, 7... Upper grain tank section, 8...
... lower discharge port, 9 ... discharge valve, 10 ... grain tank,
11...Screw conveyor, 12...Elevator,
13... Opening/closing valve, 14... Air supply tube, 15... Air blower, 16... Humidifier, 17... Opening/closing valve, 18...
Exhaust fan, 19...Exhaust pipe, 20...Supply port, 21
...Scatterer, 22...Electromagnetic switch, A, B, C,
D...Wind path.

Claims (1)

[Scope of Claims] 1. A humidity control chamber in which a plurality of ventilation porous walls are erected in a grain tank, and the moisture is filled with grains and slowly flows down, and the humidity passes through the porous walls and passes through the humidity control chamber. A ventilation chamber and a ventilation chamber are formed, and an upper grain tank section is provided above the humidity control chamber in which a grain layer is layered as a canopy to prevent air leakage, and the total volume of the upper grain tank section is adjusted as described above. A grain humidity control device characterized in that the volume is smaller than the total volume of a humidity chamber. 2. A plurality of ventilation porous walls are provided in the grain tank, characterized in that the conditioning time of the grain layer serving as a canopy for preventing air leakage in the upper part of the humidity control chamber is shorter than the humidification time of the grain layer in the humidity control chamber. a humidity control chamber filled with grains and slowly flowing down, and a ventilation chamber and a ventilation chamber in which humid air passes through the humidity control chamber through the porous wall, and A grain humidity control device in which an upper grain tank layered with grain tanks serving as a canopy to prevent air leakage is provided in the upper part of the chamber, and the total volume of the upper grain tank is smaller than the total volume of the humidity control chamber. how to use.