JPS5840055A - Device for processing and treating rice grain - Google Patents

Abstract

PURPOSE:To obtain high-quality polished rice efficiently, by setting a rice grain adjusting device for adding water to polished rice next to a device for humidifying and polishing rice, setting further a device for removing different grains. CONSTITUTION:Raw material rice is fed to the feed part 15, a proper amount of water is added to it in the cylinder 3 for polishing rice by warm air from the mist spraying nozzle 8, and the raw material rice is polished by the polishing rotor 5 and the polishing cylinder 3 with porous wall. It is then sent to the device 17 for adjusting rice grain, humidified by the warm humid air from the opening part 18 while being separated by the umbrella-type obstacles 19, and sent to the hopper 35 for the color selector 31. When a different admixture is detected by the receptor element of the detector 31 in a photoelectrically selecting chamber of the color selector, the jet nozzle 40 is operated to remove the different admixture.

Description

[Detailed description of the invention] The present invention relates to improvements in rice grain processing equipment.

For general rice grain processing, it is important to solve the following problems in a related and rational manner. In normal frictional polishing, when the self-seating of polished rice progresses to the point where the starchy material is exposed, the surface of the rice grain becomes hard and the polishing efficiency decreases rapidly. Usually, the powder layer cannot be easily removed either. Further, it is said that the standard moisture content of polished rice is an important factor in the taste of cooked rice, and the moisture content is, for example, about 14.5 to 15%. However, in the process of drying paddy, rice has traditionally been over-dried at a concentration of 1 to 1.5% to ensure safety against inspection failures, and regular brown rice for milling is 18 to 14.5%. %, and the moisture content of polished rice usually decreases by about 0.6 to 0.8 inches. Also,
Unusual impurities such as damaged grains, paddy, and stones mixed in the raw brown rice will be mixed into the milled white rice as is, so for complete rice milling under the Agricultural Product Standards Regulations, the maximum limit of the above impurities is regulated, and the rate of contamination is determined. It is stipulated that each grade be determined separately.

In order to solve these problems rationally and in a related manner, the present invention provides a humidifying rice polishing device that humidifies rice grains to remove bran and polish the rice grains;
A rice grain conditioning device that adds moisture to polished rice using fog, steam, or wet air, and a color sorting device that separates and sorts out different colors from the polished rice are connected in a related manner to form an integrated process for rice grain processing. In the humidifying rice milling device, after a small amount of humidification is applied to polished rice, a polishing action is quickly applied to soften the surface of the rice grains, and a layer of aleurone is formed by the friction between the corners of the rice grains and the bottom of the vertical grooves due to the friction between the rice grains. remove the
Therefore, the surface of the grain of polished rice that has become hard can be easily polished and finished into ultra-shiny and beautiful white rice, and in the rice grain tempering device, cracks can be created in the polished rice whose water content has been reduced by the polishing action. Moisture at a safe moisture content of 1 to 2 g/hour is added to improve the quality of the polished rice, which has a standard moisture content and is good in taste. Unusual foreign impurities such as rice grains and stones are detected by the light receiving and detecting device, and a fluid such as air is ejected to separate them. Moreover, we aim to develop and provide high-performance equipment that can consistently mass-produce ultra-glossy polished rice with good taste and standard moisture content.

Next, the present invention will be explained with reference to embodiment figures.

(1) is a humidifying rice polishing device, and porous wall polishing tubes (3) and (8) are installed under the machine body (2), respectively, and inside these polishing tubes (8), there are Projection (4) (4
) A friction polishing trochanter (5) (5) is rotatably mounted. This friction milled trochanter (5) (5) has a long groove (6) (6) formed along the protrusion (4) (4), and this long groove (6) (6) is a hollow milled trochanter shaft. (?)
(7) is connected to the sperm generation nozzle (8) (8). In addition, each of the nozzles (8) (8) has a water tank (
9) and an air compressor (lO), (11) is a rice grain supply section, (12) is a rice grain discharge section, and (13) is a sufu I.
J, - A conveyor connects the upper perforated wall polishing cylinder (3) and the lower perforated wall polishing cylinder (3). (14) is an elevator that fries the raw brown rice fed into the lower supply section (15).
The rice grains are formed so as to flow down and be supplied to the rice grain supply section (11) through a flow path (16).

Next, the rice grain tempering device (17) has an opening (18) with its lower end open, and a vein umbrella (19) made of a plate with its -ends joined in multiple rows and stages. A rice grain supply port (20) is provided at the top and a rice grain discharge port (21) is provided at the bottom of the machine body (22).
Connect the open lower end of each vein umbrella (19) every other row to the blower (2).
3) is connected to the air supply device (24) having the air supply unit (24) through the supply section (25), and the lower end open portion of each of the remaining vein umbrellas (19) is connected to the air discharge section (26) through the discharge chamber (27). The supply port (20) is connected to the discharge section (12) of the rice milling device (1) via an elevator (28). The air supply device (24) also includes an air heating device (29) such as an electric heater and an air humidifying device (30) such as a steam generator.
The vein umbrella (19) of the rice grain tempering device (17) is provided with
(B) is a circulation elevator installed in parallel with the apparatus.

Next, the color sorting device (31) is provided with a vibrating grain feeder (34) equipped with a vibrating device (33) on the upper part of the machine frame (32), and a supply hopper (35) on the supply side thereof.
A falling gutter (36) connected in a dogleg shape is installed and fixed on the discharge side, and a light receiving detection device (87) is installed in the lower part of the flowing gutter (36) and houses a light source, a light receiving element, etc. on both sides thereof. are connected to the chamber frames (38) of the photoelectric sorting chambers each provided with, and the flow trajectory (A) of the rice grains flowing out linearly from the flow gutter (36).
The light rays emitted from the light source and reflected or transmitted are detected, and depending on the change in the amount of light received, the injection nozzle = 5- device (39) is activated, and the jet action of the injection nozzle (40) produces a unique color. Form particles etc. by blowing air and separating them,
(41) is a sorted grain collecting cylinder, (42) is an outlet for dissimilar particles,
(4B) is an elevator, which is configured to fry the polished rice discharged from the tempering device (7) and to flow it down and supply it to the supply hopper (35) via the flow path (44). .

Since the configuration is as described above, the supply section (15) of the elevator (14)
) The raw brown rice (or white rice) fed into the rice grain supply section (
] At the moment when the brown rice (or white rice) flowing into the polishing cylinder (3) from 1) has an appropriate amount of water added by the humid air from the fog generating nozzle (8), only the surface of the white rice grain becomes soft on the open side. The milling trochanter (5) and the porous wall milling tube (3) peel off only the thin layer on the surface of the milled rice, and the resulting rice bran and moisture are vented through the porous walls to the outside of the milling room, and the hard surface is exposed. Due to the mutual polishing action of the rice grains, the surface of each polished rice grain is finished into a beautiful, ultra-shiny surface. Then, the polished rice is transferred from the rice grain discharge section (12) via the elevator (28) to the rice grain supply port (20) of the rice grain tempering device (17), which is installed in the rearward direction.
supplied to The polished rice supplied into the body (22) of the rice grain conditioning device (17) is passed through a plurality of vein umbrellas (
Temperature and humidity at a safe moisture rate of 1 to 2 inches/hour that does not cause the above-mentioned cracks flows down through the openings (18) of each vein umbrella (19...). The rice grains are humidified by the wind, circulated through the machine body (22) multiple times by the trench circulation elevator (B), and tempered to a standard moisture content, and then transported from the rice grain outlet (21) through the elevator (48). It is supplied to a supply hopper (35) of a color sorting device (31) provided in the process. In the color sorting device, the white rice that has flowed down from the hopper (35) to the photographic grain feeding gutter (34) flows down and slides down into the lower flow gutter (86) due to the vibration action of the vibration device (33), and is photoelectronized. The liquid flows out in a flight shape along a predetermined flow trajectory (A) within the chamber frame (38) of the sorting chamber. In the photoelectric 1 sorting chamber, the light receiving element of the light receiving and detecting device (37) receives the light beam reflected from the different color impurities such as damaged grains, paddy, stones, etc. mixed in the polished rice and issues a signal. (40) operates and blows air at the appropriate time, and the blowing action moves the foreign matter to a falling trajectory (
A), and the foreign matter that has escaped from the filter is discharged from the outlet (4).
2), and the sized grains flowing down along the trajectory (A) are often taken out of the machine via the sized grain collection cylinder (41) and left for the next process.

As described above, the rice grain processing device of the present invention is equipped with a rice grain conditioning device that adds moisture to the polished rice using fog, steam, or moist air in the subsequent process of the humidifying rice milling device that humidifies the rice grains and removes the bran. The whitening action in the previous step produces super glossy white rice, and rice grain conditioning is stipulated based on a limit of 15% for both brown rice and white rice moisture, so in principle, about OB% is evaporated by the whitening action. By stably supplementing the lack of moisture in polished rice, which is less than 15 grams, it is possible to standardize the moisture content of polished rice to an appropriate standard moisture content, and to make rice cooking easier and obtain delicious cooked rice. - In addition, a color sorting device is installed in the post-process of the rice grain conditioning device to separate and sort out all particles of different colors from the polished rice, so the surface of the rice grains is cleaned by the circulation conditioning action of the rice grain conditioning device. The color sorting equipment in the process is not contaminated by dust, etc.
The detection of different colored grains becomes more accurate and the detection accuracy is greatly improved. Also, different colored impurities such as damaged grains, paddy, stones, etc. mixed in brown rice are color-sorted and only grained white rice is extracted. It has the effect of completing the final inspection as completely milled rice, and can guarantee the quality of polished rice with peace of mind. We can consistently, smoothly, and quickly produce high-quality, delicious, ultra-shiny polished rice with a standard moisture content that is free from foreign contaminants.
It has remarkable effects such as the ability to produce

[Brief explanation of drawings]

The drawing is an embodiment of the present invention, and is a side view of the entire device. 1... Humidifying rice polishing device 2... Machine body 3... Porous wall polishing tube 4... Protrusion 5... Friction polishing trochanter
6... Long groove 7... Hollow refined trochanter shaft 8...
・Fog generation nozzle 9...Water tank 10...Air compressor = 9-11...Rice grain supply section 12.-Rice grain discharge section 18.
...Screw IJ, -Conveyor 1/I...Elevator 15.
- Supply section 16 - Infrahoof passage 17... Rice grain tempering device 18... Opening part 19... Vein umbrella
2()...Rice grain supply port 21-...Rice grain discharge port
22...Iso body 23...Blower 24.
...Air supply device 25... Supply section 26.
...Air discharge section 27, discharge chamber 28...Elevator 29...Air heating device 30...Old air heating device...Color sorting device 32...Machine frame: (3
...Photography device 34...Vibrating grain feeder 35...
・Supply dropper 36-・Flowing gutter 37... Light reception detection device 38... Chamber frame 39 of photoelectric 1 sorting room ・
Injection nozzle device 40... Injection nozzle 41... Grain grading cylinder 42... +11 outlet 43... Elevator
44...Tanshitaji A...Flowing trajectory
B...Circulation lift io-

Claims (1)

[Claims] A rice grain conditioning device that adds moisture to the milled rice using fog, steam, or wet air is installed in the downstream process of a humidifying rice milling device that humidifies rice grains to remove bran and whiten the rice grains. This rice grain processing equipment is equipped with a color sorting device that separates and sorts particles, forming an integrated rice grain processing process.