JPS6127098B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for cooling highly polished sake-brewed white rice to room temperature following the rice milling operation.

In rice milling equipment that completes milling by passing through the milling chamber multiple times, each time the grain passes through the milling chamber, the grain temperature rises several degrees and the rice grains become dry. In particular, when milling rice for sake brewing, the rice milling process is continuously carried out until the yield rate is extremely low, which increases the generation of heat and increases the dryness of the rice grains, resulting in poor rice milling efficiency. The load fluctuates, leading to cracks due to dryness, and eventually the cracks expand and rice grains collide with each other, resulting in broken rice and deterioration in quality.

Therefore, for the purpose of improving the above problems,
For example, a rice milling device for brewing has been proposed as shown in Japanese Patent Application Laid-Open No. 48-85344. An air humidifying device is installed in the air cooling intake, an exhaust fan is connected to the collecting trough of Nukaburui Mangoku, and the humidified air sucked from the air cooling duct is passed through the wire mesh of Nukaburui Mangoku to the exhaust fan. Since it is configured to suction, the white rice that flows out of the outlet of the grain milling machine and slides on the bran-blue mangoku wire mesh,
The humidified air sucked in from the air cooling duct is distributed,
It prevents the white rice from drying out and cools it, and the exhaust air is sucked into the exhaust fan along with the bran flowing out from the wire mesh and discharged to the appropriate place. The effect of receiving a cooling effect during the short time that the rice passes through the milling room is smaller than the temperature at which the temperature of the polished rice rises due to heat generation during the milling process in the milling room. If this high-temperature polished rice is subjected to the next step of soaking in water, the water absorption action will reach a water absorption rate that is higher than the water absorption rate of polished rice that does not cause underwater cracks, so all of the rice will develop underwater cracks and become damaged rice. For this purpose, milled white rice is temporarily stored in a product tank, and the temperature of the polished rice is naturally radiated.
It takes several weeks to perform a treatment (commonly known as withering treatment) that reduces the moisture content of polished rice by making the indoor atmosphere highly humid.
It took one month to store the white rice, and required many tanks to store the white rice, requiring a large area to install them.

The present invention is aimed at solving the above-mentioned drawbacks. Immediately after milling, polished rice is transferred to a cooling tank device equipped with a cold air generator and a humidifier, and the milled rice is cooled without drying after milling. The polished rice for sake brewing can be supplied to the next process, eliminating the waste of naturally radiating heat from the white rice in numerous white rice tanks, which was an essential work process in the conventional method, and eliminating the need for white rice storage tanks and their installation locations. The purpose of this invention is to provide a device that reduces the equipment cost and significantly improves the work process.

The present invention will be explained with reference to embodiment figures. A rice mill 4 equipped with a milling chamber 3 equipped with a vertical rotary grinding milling trochanter 2 is mounted on the top of the base 1, and a grain tank 5 is connected and mounted on the top of the rice mill 4. An elevator 6 is installed upright on the side of the elevator 1, and the discharge port 7 of the elevator 6 and the supply port 8 of the rice grain tank 5 are connected to each other, and the discharge port 9 of the rice miller 4 and the lower supply port 10 of the elevator 6 are connected to the flow pipe 11.
A sake brewing rice milling apparatus is formed in which the milled rice is connected to the flow tubes 12 by flow pipes 12, and the milled rice flows through the milling chamber 3.

A cooling tank device 15 connected to the cold air generator 13 and the humidifying device 14 is provided in the rear stage of the rice milling machine 4, and a rice grain supply port 17 is provided in the upper part of the machine frame 16 of the cooling tank device 15, and a rice grain supply port 17 is provided in the lower part of the machine frame 16 of the cooling tank device 15. In addition to providing the exhaust ports 18, an exhaust chamber 20 communicating with the exhaust side passage 19 and an air supply chamber 22 communicating with the air supply side passage 21 are provided on both side walls of the machine frame 16. In the rice grain flow path 23, there is an air exhaust side passage 19.
and the air supply side passage 21 are arranged in a plurality of stages and in a plurality of rows so as to be vertically staggered. A cold air generator 13 and a humidifier 14 are connected to the air supply chamber 22 via a pipe 24, and a humidity sensor 25 is mounted on the wall of the air exhaust chamber 20, and the sensor 25 is connected to a regulator 26. The control unit 2 of the cold air generator 13 via
7 and the control unit 28 of the humidifier 14, and control the cold air generator 13 and the humidifier 14 in a related manner based on the measured values measured by the humidity sensor 25, and control the air supply room. 22 to each air supply side passage 21 . . . so as to supply cold and humid air to the air supply side passages 21 .

Rice grain supply port 1 in the upper part of the cooling tank device 15
7 is a flow pipe 3 connected to a discharge port 30 of an adjacent rice lifting machine 29.
1, and the lower supply port 32 of the rice lifting machine 29 and the discharge port 9 of the rice milling machine 4 are connected by a flow pipe 33, so that polished rice can be cooled continuously after milling. . Further, a flow pipe is formed below the rice grain discharge port 18 at the lower part of the cooling tank device 15, and is branched into two directions, and one flow pipe is connected to the lower part of the rice lifter 29 to form a circulation path for cooling polished rice. 34 is regulator 2
This is a humidity setting device provided at 6.

In the above-mentioned configuration, when the raw material brown rice is introduced into the lower supply port of the elevator 6 and the sake brewing rice milling device is started, the raw material rice is temporarily stored in the rice grain tank 5 by the elevator 6 and flows down to the lower rice milling machine 4. The polished rice milled to a predetermined yield value in the milling room 3 is sent to the rice grain tank 5 again via the elevator 6. This circulation milling process is repeated over several hours to produce polished rice with a predetermined milling ratio, but during each pass through the milling chamber 3, the temperature of the rice rises several degrees and the rice grains become dry. Therefore, a cooling device (not shown) is connected to the rice grain tank 5 and the like to appropriately cool the rice temperature.

Finished white rice milled to a predetermined yield rate by the rice miller 4 is lifted and killed into the cooling tank device 15 via the rice lifter 29 and supplied. Cooling tank device 15
The cooling effect is started by supplying cold and moist air to the cold air generator 13 and the humidifier 14 for the white rice stored in the rice mill. In the cooling tank device 15, the second rice grain flow rate is 4 tons per hour.
Relative humidity 63, which corresponds to the equilibrium moisture content of rice grains shown in the figure, 15%.
At a humidity of 90% or higher, it can be cooled and humidified to 23°C by blowing ^50m3 of cold and humid air per minute. In addition, in order to maintain the standard moisture content of 14.3 to 15.6% for sake-brewed white rice and to cool it without inducing evaporation of the moisture contained in the rice grains, the humidity of the exhaust air in the exhaust chamber 20 must be kept at 70% at all times.
Must be maintained between 80% and 80%. In the present invention, the humidity setting device 34 provided in the regulator 26 has a humidity of 70% to 70%.
80%, and starts the cold air generator 13 and humidifier 14 to generate any predetermined cold and humid air similar to the above-mentioned cold and humid air, and supplies it to the air supply chamber 22 to cool the brewed white rice in the cooling tank device 15. When the cooling effect is performed, the humidity sensor 25 provided in the ventilation chamber 20
measures the exhaust air humidity and inputs it to the controller 26,
The regulator 26 adjusts the settings of the humidity setting device 34 (70 to 80
%) and the input value, and when the humidity becomes 70% or less, the humidifier 14 and the cold air generator are operated in conjunction to control the humidification amount and air blowing amount to correct it to within the set value. The cold and humid air supplied to the cooling tank device 15 is constantly maintained at a predetermined humidity that is in equilibrium with the moisture of the polished rice to be cooled in the relationship of moisture absorption and dehumidification, and avoids conditions that induce evaporation of the moisture contained in the polished rice. Prevents cracking of rice grains.

The white rice cooled to a predetermined temperature is stored in a cooling tank device 1.
The rice grains are discharged outside the machine from one of the two-way branched gutter below the rice grain discharge port 18 at the bottom of 5, and are sent to the next process.
If the polished rice is insufficiently cooled, it is flowed out from one of the flow pipes branched into two directions to the rice lifter 29,
The polished rice is circulated through a cooling tank device to provide a re-cooling effect.

As set forth above, according to the present invention, the rice is milled to a desired degree of polishing by circulating the milling chamber multiple times, and the polished rice whose temperature has risen due to heat generation during the milling process is transferred to the cooling tank device. By supplying cold and moist air to the white rice, it dries the white rice and cools it without inducing cracks, making it possible to continue cooling the white rice after milling, and immediately placing the white rice in water for the next process after it is removed from the cooling tank. It does not cause underwater cracks even when soaked, eliminates the need for tank equipment and space for natural heat dissipation of polished rice, which was an essential step in the conventional method, and cools the polished rice continuously after polishing. This has a remarkable effect on streamlining the work process by making it possible to perform the subsequent dipping process consistently.

[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 apparatus, and FIG. 2 is a diagram showing the relationship between the equilibrium moisture content of rice grains and relative humidity. 1... Base, 2... Vertical rotary grinding polished trochanter, 3
...Whitening room, 4...Rice polishing machine, 5...Rice grain tank,
6... Elevator, 7... Discharge port, 8... Supply port, 9
...Discharge port, 10...Lower supply port, 11, 12...
...flow tube, 13...cold air generator, 14...humidifier, 15...cooling tank device, 16...machine frame, 1
7...Rice grain supply port, 18...Rice grain discharge port, 19...
...Exhaust side passage, 20...Air exhaust chamber, 21...Air supply side passage, 22...Air supply room, 23...Rice grain flow path, 24
...Feed pipe, 25...Humidity sensor, 26...Adjuster, 27...Control unit, 28...Control unit, 29...
Rice lifting machine, 30...Discharge port, 31...Flow tube, 32
... Lower supply port, 33 ... Flow tube, 34 ... Humidity setting device, A ... White rice flow process.

Claims (1)

[Scope of Claims] 1. Circulating sake brewing by connecting the outlet of a milling chamber equipped with a vertical rotary grinding milling trochanter with the supply port of a rice grain tank connected to the milling chamber via an elevator. A cooling tank device equipped with a cold air generator and a humidifying device is installed in the post-processing stage of the rice polishing device, and the rice polishing device and the cooling tank device are connected to the rice lifting machine so as to cool the white rice continuously after milling. A cooling device for sake-brewing white rice, which is characterized by being contacted through. 2. Cooling of brewed white rice according to claim 1, which is connected to the rice lifting machine via a flow pipe connected to the rice grain discharge port and the rice grain supply port of the cooling tank device, and is formed in a circulation path for cooling the polished rice. Apparatus 3: A humidity sensor is provided in the exhaust side passage of the cooling tank apparatus, and the cold air generator and the humidifier are connected to each other so as to supply cold and humid air with a humidity equal to or higher than the moisture content of polished rice, as determined by the measuring device of the humidity sensor. 3. A cooling device for brewed white rice according to claim 1 or 2, wherein the humidity sensor is connected to the device.