JPH02157049A - Rice-washing method and nozzle apparatus therefor - Google Patents

Abstract

PURPOSE:To make rice washable using the conventional tank without the need of any particular rice-washing machine by circulating water, air and rise together in a tank by convection to bring the grains of the rice into frictional contact with one another. CONSTITUTION:A rice-washing nozzle device 2 has a pipe P having such length as to be mountable from the bottom to the top of a tank 1, the upper end provided with an air entrance opening 7 and a water entrance opening 8, and the lower end provided with 4 nozzles 9 arranged radially for applying a jet of air-water mixture. When rice 12 is placed into the tank 1, water 13 is added thereto in an appropriate amount and the air and water are supplied from the entrance openings 7 and 8, the jet of the air-water mixture is applied from the nozzles 9. The jet of this mixture 14 creates a convection current 15 from the bottom to the top of the tank, thereby bringing the grains of the rice into frictional contact with one another for rice washing. The washing in this way can obviate the need for any particular rice-washing machine, very effective in the rice washing and making the reduction of the rice-washing time and water conservation possible.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a rice washing method and a rice washing nozzle device.

(Conventional technology) The conventional rice washing method is to use a special rice washing machine to spread rice in water in a tank using a screw, and wash the rice by the friction between the rice grains in the water during the spreading. be.

For example, in the fields of brewing and rice cracker food processing, in the pre-rice steaming process, the rice is washed by agitation using a special rice washer, and the washed rice is sent with water to a separator at the top of the soaking tank using a pump. The water was separated from the rice, and the washed rice was put into a soaking tank.

On the other hand, in view of the fact that rice can be washed in household rice cookers by rubbing the rice grains against each other in a stream of water, it has been proposed to automate rice washing by creating convection in the rice cooking container using tap water. ing.

(Problem to be solved by the invention) However, the conventional rice washing method using a dedicated machine as described above has the disadvantage that it requires a large-scale dedicated machine and also requires a large space. There is.

In addition, in conventional rice washing using a water stream, a considerable amount of water is required to obtain a sufficient water stream for washing the rice.
In order to prevent the rice from flowing out due to large waves at the top of the container caused by the water current, a suitable structure is required, and while small containers for home use are difficult to use, large containers require a dedicated machine. There was a problem that it was not possible.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rice washing method and a rice washing nozzle device that do not require a dedicated rice washing machine, can be used in combination with a normal tank, and are highly effective in washing rice.

[Structure of the Invention] (Means for Solving the Problems) The rice washing method of the present invention that solves the above problems includes putting rice to be washed into a tank equipped with an appropriate outlet at the top, adding water as appropriate, and washing the rice as described above. A mixture of air and water is injected into the bottom of the tank, and the rice bran flows out from the outlet, creating a convection current in the tank using a ternary mixture of water, air, and rice, and the rice grains are separated from each other during this convection flow. It is characterized by washing rice by applying friction.

In addition, the nozzle device for washing rice of the present invention is provided with an air water introduction port for introducing air and water or a mixture of air and water at one end of the control having an appropriate length, and an air water introduction port for introducing air and water or a mixture of air and water at the other end. The present invention is characterized in that an injection nozzle is provided for injecting the mixed water into the bottom of a tank in which rice is to be washed and causing convection by a ternary mixture of air, water, and rice inside the tank.

(Function) In the rice washing method of the present invention, water is appropriately added to a tank containing rice, and a mixture of air and water is injected from the bottom of the tank to create a convection flow caused by a ternary mixture of rice, water, and air. The rice is washed by rubbing the rice grains together.

Further, the rice washing nozzle device of the present invention has an inlet for introducing air and water or a mixture thereof at one end of a suitably long tube, and a nozzle for injecting the mixture water at the bottom of the tank at the other end. Therefore, by locating the introduction port at the top of the tank and locating the nozzle at the bottom of the tank, the tank can be used as a rice washing tank. Moreover, since the rice washing method described in item 1 can be carried out by jetting a mixture of air and water from the nozzle, the rice washing effect is excellent.

(Example) Hereinafter, the present invention will be described in detail using the accompanying drawings.

The soaking tank shown in Figure 1] is a tank placed in the pre-process of rice steaming used for brewing and processing of rice cracker foods.
In this example, the rice washing nozzle device 2 is applied to this, and the immersion tank] is also used as the rice washing tank.

A drain port 4 is provided at the top of the tank 1 to drain excess water and bran.

The rice washing nozzle device 2 uses a pipe +, tP with a length that can be installed from the bottom to the top of the tank 1, and has an introduction lower and 8 that can introduce air 5 and water 6 at the upper end, and a pipe 8 at the lower end. The tube end is equipped with four nozzles 9 arranged radially to spray a mixture of air and water uniformly laterally from the bottom of the tank.

The air and water introduction lower 8 has a valve 10 for adjusting the flow rate.
1.1 are provided respectively.

In this example, the air introduction lower and the water inlet 8 are simply joined at one end side, but if a mixture of air and water can be injected at the nozzle 9 side, for example, air and water can be injected at the nozzle 9 side. It is also possible to merge the two at a position closer to the nozzle 9 or at a position closer to the nozzle 9.

According to the configuration described in 1 above, the rice washing nozzle device 2 is placed in the tank as shown in the figure, and now rice 12 is put into the tank 1, water 13 is added as appropriate, and air and water are supplied from the introduction lower 8. Then, a mixture of air and water 14 is injected from the nozzle 9.

The mixed water 14 injected from the nozzle 9 causes a convection 15 that rises along the tank wall from the bottom to the top of the tank and falls at the center of the tank.
Step 5 rubs the rice grains together and washes the rice.

Here, the air bubbles in the convection 15 are small at the bottom of the tank and large at the top due to water pressure, and are destroyed and dispersed on the way, so unlike the convection between water and rice, it is a small convection. This produces a great rice washing effect.

In addition, since the convection is relatively small [5], there is a low possibility that the rice 12 will meet the water 13 at the top of the tank 1, and the rice 12 will not be discharged from the drain port 4 that drains the bran 3. . Moreover, since the rice washing effect is great at this time, water can be saved significantly compared to the method using only water convection.

The amounts of air 5 and water 6 are such that the air and water mixture 1-4 injected from the nozzle 9 can create the necessary and sufficient convection 15, and the air bubbles in the convection 15 can bring out a sufficient rice washing effect. It may be determined by adjusting valve values 0, ]1 so that the ratio becomes the same.

As described above, according to the rice washing nozzle device 2 of this example, by installing the device 2 in the soaking tank 1 and supplying air 5 and water 6 through the valves 10 and 11, the effect can be improved by convection [5]. Able to wash rice. After washing the rice, by operating the valve 16 provided at the bottom of the tank 1, the unnecessary amount of water can be removed and the rice can be directly transferred to the soaking process.

Further, since the rice washing nozzle device 2 of this example is detachable from the tank, the rice washing nozzle device 2 can be removed from the tank 1 and transferred to another tank, and the other tank can be used as a rice washing tank. Therefore, a dedicated rice washing machine is not required, and space can be saved.

FIG. 2 is an example in which the rice washing method of the present invention is applied to a rice cooker for regular consumption.

In this example, a nozzle device 2A corresponding to the rice washing nozzle device 2 described above is fixedly installed in the rice cooker 17.

That is, a drain port 4A for draining rice bran is provided at the top of the rice cooker 17.
A nozzle device 2A for injecting a mixture of air and water 14 from a nozzle 9 from the lateral direction is fixedly arranged at the bottom of the nozzle device 2A.

The nozzle device 2A includes introduction lowers A and 8A that introduce air 5 and water 6, and a valve 18 that prevents rice from flowing backward during rice cooking.
By protruding the tip of the air introduction lower A into the constricted part of the water introduction port 8A, air 5 is
It is designed to be able to absorb.

The automatic suction of air was made possible in consideration of the fact that commercial facilities and small-scale factories are usually not equipped with compressor devices capable of supplying air.

A wire mesh 19 is provided at the outlet of the nozzle device 2A in the rice cooker 17 to prevent clogging of the pipe PA and unsanitary conditions during rice cooking.

In the rice cooker having the above configuration, rice can be washed effectively by the convection 15 of the ternary mixture of air, water, and rice, as in the previous embodiment, and even when all the valves 4A, 1.6A, and 18 are closed. By sending superheated steam through a steam pipe (not shown), rice can be cooked as usual.

The present invention is not limited to the above embodiments, but can be implemented in any appropriate manner by making appropriate design changes.

[Effects of the Invention] As described above, the rice washing method of the present invention adds water as appropriate to the rice put in a tank, and injects a mixture of air and water, thereby removing the three elements of air, water, and rice. Since this is a method of washing rice using convection from a mixture, a small convection can have a large rice washing effect, and it can significantly save rice washing time and water resources compared to convection in a basin. It is possible to simplify it.

Further, according to the nozzle device for washing rice of the present invention, the structure is such that the mixture of air and water introduced from one end of the pipe material is simply injected from the nozzle at the other end, so it can be installed in an appropriate tank. By doing so, the tank can be used as a rice washing tank, a dedicated rice washing machine can be omitted, and equipment can be saved accordingly. Furthermore, since the rice washing action at this time is similar to the action of the rice washing method described above, the rice washing effect is great and it is possible to save rice washing time and water resources.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a rice washing nostle device according to an embodiment of the present invention arranged in a dipping tank, and FIG. 2 is an explanatory diagram of the rice washing method of the present invention applied to a rice cooker for regular consumption. 1... Soaking tank 2... Nostle device for washing rice 3.
・Bran 4 ・Exhaust port 5 ...Air 6. water

Claims (2)

[Claims] (1) Rice to be washed is put into a tank equipped with an appropriate outlet at the top, water is added appropriately, a mixture of air and water is injected into the bottom of the tank, and the rice bran flows out from the outlet. let me,
A rice washing method characterized by creating a convection current in the tank using a ternary mixture of water, air, and rice, and washing the rice by rubbing the rice grains against each other between the convection currents. (2) An air/water inlet for introducing air and water or a mixture of air and water is provided at one end of a pipe of an appropriate length, and the rice is washed with the air/water mixture introduced from the air/water inlet at the other end. 1. A nozzle device for washing rice, characterized in that an injection nozzle is installed at the bottom of a tank to cause convection of a ternary mixture of air, water, and rice inside the tank.