JPS646059Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice freezing device used for producing dried rice that can be easily and quickly cooked by simply reconstituted in hot water.

When rice is cooked, it becomes block-like due to its stickiness, and if block-like rice is freeze-dried as it is, it takes a long time to dry, making it difficult to process automatically when commercializing dried rice. However, there are drawbacks such as slow and uneven recovery of dried rice, so it is desirable to break up the rice during freezing.

Therefore, as shown in Japanese Patent Application Laid-Open No. 50-105847, an apparatus has been proposed in which the rice is broken up by a jet flow in a low-temperature chamber, and the rice that falls apart is frozen in a low-temperature gas. Ta. However, since the airflow is violently agitated by the jet flow in the low-temperature room, heat generation occurs, and the heat input from the case that forms the low-temperature room increases, resulting in a large loss of expensive cooling energy. Ta.

The purpose of the present invention is to improve a device that feeds rice in a loose state so that the loss of cooling energy in a cold room caused by the device can be effectively suppressed.

The characteristic configuration of the rice freezing device according to the present invention is as follows:
A device for supplying rice to a cold room by dropping it in a low-temperature gas in a broken state consists of a liquid storage tank that immerses the rice in a liquid, and a liquid storage tank that scrapes up the rice in the liquid storage tank and lowers the rice to a low temperature. The purpose is to provide a throwing tool that is released into the room, and its functions and effects are as follows.

In other words, when a block of rice is immersed in a liquid, the liquid penetrates between the grains of rice, making it easier to loosen the rice.If the rice is stirred in this state by a topping, the rice will definitely break down. It becomes disjointed. Then, if you scrape up the broken rice with a rice cooker and feed it into a low-temperature room,
In the low-temperature chamber, the rice completely breaks up and falls, yielding broken pieces of frozen rice.As a result, freeze-drying time can be shortened, dried rice can be automatically processed into products, and dried rice can be rehydrated quickly and uniformly. It is now possible to reliably freeze rice in a good manner.

Furthermore, since the rice is fed into the low-temperature chamber by air, the moving speed of the rice is extremely low compared to the conventional method of using jet flow, and no excess gas is supplied into the low-temperature chamber. As a result, the loss of expensive cooling energy in a cold room can be effectively suppressed, rice can be frozen extremely economically, and as a whole, a freezing device that is effective in providing high-quality dry rice at a low price has been obtained. .

Next, examples will be shown using drawings.

A liquid storage tank 1 is provided to store a suitable liquid L such as soup stock for rice porridge, water, etc. and to immerse the rice R in the liquid L, and a liquid storage tank 1 is provided in a cold room 3 in a vertically long case 2. A rotary dumping tool 4 for feeding the scraped rice R is provided in conjunction with a drive device 5 whose speed can be freely changed.

A nozzle 6 for spraying low-temperature liquefied gas such as liquefied nitrogen that is harmless to food is provided at an intermediate position between the upper and lower sides of the cold room 3, and the rice R supplied in a broken state by the rotary release device 4 is transferred to the cold room 3. It is configured so that it is dropped in a broken state in the low-temperature gas inside and is brought into contact with the low-temperature liquefied gas from the nozzle 6 to be sufficiently frozen.

An exhaust passage 7 is connected to the upper part of the case 2 to exhaust the heated gas in the cold room 3, and a drive type with excellent airtightness such as a screw conveyor is connected to the lower part of the case 2. A discharge device 8 is provided to supply frozen rice to a vacuum heating dryer 9.

Next, another example will be shown.

The blades 4a of the rotary release tool 4 can hold pins, bars, net-like bodies with openings of about 20 mm, etc. in straight, curved, or
A broken line shape or other various types can be used, and the release tool 4 may be circulated by a link mechanism or the like.

The liquid storage tank 1, the cold room 3, and their incidental equipment can be changed as appropriate. For example, a conveyor may be provided to supply the rice R immersed in the liquid L to the rotary throwing device 4, or An airtight means such as an air curtain may be attached to the case opening 2a for supplying R.

The means for supplying low-temperature gas to the low-temperature chamber 3 can be changed as appropriate, and the supply temperature of the low-temperature gas may be appropriately set.

[Brief explanation of the drawing]

The drawings are schematic illustrations showing embodiments of the present invention. 1...Liquid storage tank, 3...Cold room, 4...Toppings, L...Liquid, R...Rice.

Claims (1)

[Scope of utility model registration request] A rice freezing device is provided with a device that supplies the rice R in a separated state to a low temperature chamber 3 in which the rice R is dropped in a low temperature gas and frozen, wherein the feeding device feeds the rice R into a liquid L. This rice freezing device is equipped with a liquid storage tank 1 for dipping, and a dumping tool 4 for scraping up the rice R in the liquid storage tank 1 and releasing it into the low temperature room 3.