JPH0135695B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of a vertical rice milling machine, particularly a rice milling machine for sake brewing. Developed to measure stability.

In general, highly polished white rice (with a yield of 75% or less) that removes protein is used for sake-brewing white rice.
As the polishing level progresses to below 75%, the physical properties of the rice grains completely change and become hard, which drastically reduces the polishing efficiency, and the grain surfaces become smooth, reducing the revolving force induced by the grinding rollers on the rice grains, causing the rice grains to become a load. The ability to drain water against the necessary pressure also gradually decreases, reducing the load on the whitening process, but on the other hand, as the revolution becomes less smooth, the orbital flow within the whitening chamber also slows down, resulting in intermittent periodic gravel phenomena. There is a danger that the load will fluctuate significantly and the overload will eventually lead to a sudden stop of operation. If the load is adjusted to a light level, the machine will fall into a no-load state, which is the opposite of an overload, and constant manual adjustment will be required to deal with the wave-like loads at the extremes of overload and no-load, resulting in continuous unstable conditions that will seriously impede work. It is the fate of the advanced whitening process to cause problems.

In order to prevent the rice grains from sliding inside the milling chamber, it is necessary to mix in an appropriate amount of powder, and white rice bran (starch) generated during high-level milling must be mixed in as a buffer medium. The mixing rate of this white rice bran is extremely delicate and requires an appropriate amount, and if this balance is lost, the load will suddenly become unstable. Conventionally, this adjustment was difficult, and it was not possible to adjust the revolution speed of the rice grains in the milling chamber, and the load could not be adjusted. I am forced to vibrate.

In order to appropriately adjust the white bran mixture rate, the present invention provides a porous wall with a bran removal window in the main circumferential part of the upper part of the polishing tube, and adjusts the bran removal area to an appropriate amount as needed. In the lower and lower layers of the milling room, where the density is high, an appropriate amount of powder is used to prevent slippage and promote the revolving induction force of the grinding rotor necessary for discharge, ensuring smooth discharge and stabilizing the load. You can wait. Furthermore, it is customary to remove the rice bran from the discharged polished rice at the same time using a wire mesh sieve, but in the present invention, it is not necessarily necessary to separate the rice using a sieve, and an appropriate method is used in the upper porous wall of the polishing cylinder. Because it can remove bran,
It does not necessarily require empty stacks such as sieves or wire mesh frames.

The present invention performs bran removal precisely in the upper layer of the milling room, which is not sensitive to the influence of the revolution of rice grains or sliding flow.
By mixing an appropriate amount of rice bran in polished rice, the revolution flow of the polished rice in the milling room during high-level milling can be adjusted, and a remarkable effect of increasing the milling efficiency and stabilizing the load in high-level milling can be expected.

The present invention will be explained with reference to embodiment figures. A grinding and polishing trochanter 2 mounted on a vertical shaft 1 is built into a polishing tube 3, and a rice feed port 4 is provided at the top of the polishing tube 3, and a rice discharge port 5 is provided at the bottom to form a rice polishing machine for sake brewing. . Also,
A porous wall window 6 for rice bran removal is provided in the upper part of the circumference of the polishing cylinder 3, and an outer wall 7 is provided on the outside to form a rice bran removal chamber 8 inside, which is separated from the rice bran removal chamber 8. The provided ventilation fan 9 is connected through an air exhaust path 10, and the porous wall window 6 is provided with a shielding plate 11, and the shielding plate 11 is connected to an opening adjustment device 12 consisting of a rack, pinion, etc. , 13 is the whitening room, 14 is the ventilation hole,
A is the void above the polishing trochanter 2, B is the upper surface of the polished rice layer formed in the polishing cylinder 3, and the void A is above it.
Therefore, the rice grains flowing down from the rice feeding port 4 into the polishing cylinder 3 are mixed with the buffer medium (white rice bran) to prevent the rice grains from sliding, which is also introduced at the same time, and the rice grains flow into the cavity A above the polishing trochanter 2. Since a rice grain layer is formed that revolves around the inside of the porous wall window 6, the opening adjustment device 1
When the opening is appropriately adjusted by step 2, some of the excess white rice bran is absorbed by the suction force of the exhaust fan 9 and removed from the machine, and the rice grains with an appropriate amount of rice bran mixed in are sent into the whitening chamber 13. It flows down and stabilizes the load mentioned above,
In addition, highly accurate whitening action is reliably carried out by adjusting the revolving flow of polished rice.

In addition, it is also used to fully open the porous wall window 6 immediately before discharging the rice grains to perform a highly efficient bran removal action.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a sectional view of the main parts of this device, and FIG. 2 is a plan sectional view of the device. 1... Vertical shaft, 2... Grinding and polishing trochanter, 3... Polishing tube, 4... Rice feeding port, 5... Rice discharge port, 6... Porous wall window for bran removal, 7... Outer wall, 8...Blank removal room, 9...
Exhaust fan, 10...Exhaust duct, 11...Shielding plate, 12...
...Opening degree adjusting device, 13... Refining room, 14... Air supply hole, A... Vacancy, B... Upper surface of polished rice layer.

Claims (1)

[Claims] 1. A grinding rotor mounted on a vertical shaft is built into a polishing cylinder, and a porous wall window for removing rice bran is provided in the main circumference of the polishing cylinder, and the porous wall window for rice bran removal is provided with an opening adjustment device. A vertical rice milling machine characterized by being equipped with a shielding plate.