JPS5837856B2 - rice washing equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice washing device.

Conventionally, the rice washing method used in the industry that uses rice in small quantities has been to mechanically transport the rice grains using a screw conveyor or the like and rub them together to sharpen them.

According to such a method, especially when it comes to rice that is prone to cracking, such as artificially dried rice, there is a drawback that the screw conveyor mechanically applies an external force to the rice, causing cracking to occur.

In order to solve these problems, for example,
As shown in Publication No. 4-8740, particulate matter (such as rice) is placed in a cleaning container, and pressurized water is introduced from one end of a connecting pipe connected to the lower end of the cleaning container, and the particulate matter and gas-liquid mixed fluid are passed through the connecting pipe. An apparatus has been proposed in which particles are cleaned by the flowing action of the gas-liquid mixed fluid, the impact action of falling into the container, and the rubbing action of the particulates during the movement process. Although the problems of the prior art have been solved, the flow in the connecting pipe of this type of device is a piston flow, and the cleaning effect is poor.

In other words, with this type of device, it is not possible to increase the air pressure. This results in a normal flow, resulting in poor cleaning efficiency.

Therefore, there is a problem that it is necessary to circulate and flow, and cleaning cannot be carried out for a short period of time.

The present invention was made in view of the above circumstances, and aims to eliminate the drawbacks of the conventional methods by simple yet rational means, and to minimize the occurrence of cracked rice even in artificially dried rice. It is an object of the present invention to provide a device capable of improving rice washing efficiency as well as recovery yield efficiency.

Next, the details and rice washing operation of the embodiment of the present invention will be explained based on the rice washing apparatus shown in Figs. Fill rice washing water into the container 2, and in this state insert the rice into the rice input hopper.
Put a certain amount of rice grains into 1.

The supplied rice grains are sent together with the rice washing water to a rice collecting cylinder 4 connected to the downstream side of the rice washing tank 2, which is roughly ground by the stirring and conveying action of a screw 3 provided in the rice washing tank 2.

The rice grains sent into the rice collecting cylinder 4 are placed in a driving water pipe 5a that is perpendicular to the axis of the vertical first suction pipe 6 whose lower part is inserted into the rice collecting cylinder 4, and is subjected to the action of the driving water. The rice washing water and water are sucked up through the first suction pipe 6 by the Ejiek J-5 working at the machine.

At this time, the air sucked from the adjustable air intake pot 7 provided in the middle of the first suction pipe 6 is mixed into the first suction pipe 6, and an appropriate amount of air is mixed with the ejector 5. Due to the rice washing water being suctioned and rising, a layer of rice and water, an air layer, and a layer of rice and water are formed in the first suction pipe 6. The air layer is intermittent, and both layers move up and down while the air layer is compressed and S flows upward. A bubble washing water flow is generated, and this dynamic bubble washing water flow rubs the rice grains against each other as they pass through the S1 ejector 5 section. In the raising pipe 8, the rice grains are further separated by an intermittent bubble washing water flow, and the rice is discharged to the outside from the downstream discharge end of the second suction pipe 8 in one pass.

In addition to the fact that the air intake pot 7 is adjustable,
By making it possible to adjust the intensity of the pumping action of the driving water pipe, the amount of water and the amount of air mixed in can be easily adjusted, making it possible to easily select the degree of polishing during rice washing, and it is possible to adjust the level of polishing of rice with various polishing conditions. It has the feature of being highly compatible with rice washing and washing.

The rice washing water, rice grains, and air bubbles discharged from the lower discharge end of the second suction pipe 8 in this way are transferred to the second suction pipe 8.
The rice grains and the rice washing water are separated by a jet water separator 9 placed at the end, and the drained rice grains are transferred to a rotating drum 12 covered with a net 11 via a guide cylinder 10 having a water-flowing structure and separated again. The rice washing water is returned to the rice washing tank 2 through a water guide gutter 15 provided in the separating tube 13 and the machine frame 14.

The rice grains sent into the rotary drum 12 are cleaned by the rotating action of the rotary drum 12 and by the cleaning fluid sprayed from the nozzle portion 17 of the water pipe 16 inserted into the space inside the rotary drum 12. The washed rice that has been finished washed by the spraying action of washing water and drained by the net 11 of the rotating drum 12 is collected into the soaking tank 19 from the discharge port 18, and the water used for this finishing washing is drum 12
Through the guide body 20 provided below and the water guide gutter 15,
The rice is refluxed to the rice washing tank 2.

Reference numeral 21 in the figure is an overflow chamber provided on one side of the rice washing tank 2, and a replaceable weir plate 22 is provided at the boundary between the overflow chamber 21 and the rice washing tank 2. The water level in the rice washing tank 2 is determined by the height of the weir plate 22, and the rice washing water overflowing on the weir plate 22 is also discharged to the outside through a pipe 23 provided in the overflow chamber 21.

Floating substances such as bran in the rice grains are removed by climbing over the weir plate 22 into the overflow chamber 21, and are discharged to the outside from the pipe 23 along with the overflow water.

In addition, 24 in Fig. 1 is a bypass pipe that communicates the upper part of the rice-washing Shio-ink 2 with the upper part of the rice-collecting cylinder 4, and the rice-washing water disappears in the rice-collecting cylinder 4 due to the suction action of the Ejiek Shio-5. In order to prevent the Ejiekshioichi action from occurring, it is necessary to maintain a constant water level in the rice collecting cylinder 4 at all times. It was designed to supply the

As described above, according to the present invention, it goes without saying that the rice grains are washed with a gas-liquid mixed fluid, and in particular, in the present invention, an adjustable air intake part is provided in the middle of the rice collection cylinder in which the rice has been roughly ground. When inserting the lower part of the vertical suction pipe with a The appropriate amount of air and the rice washing water sucked up by the ejector create a layer of rice and water, an air layer, and a layer of rice and water in the suction pipe. The air layer is intermittent, and when the air layer is compressed, both layers move up and down, creating a dynamic bubble washing water flow that rises and flows, and the dynamic state of this bubble washing water flow, It has the feature that it can effectively rub the rice together while allowing a portion of the rice to pass through, cleaning the rice in one pass, and releasing it to the outside for collection.

In addition, by making it possible to adjust the strength of the driving water in addition to the air intake being adjustable, the amount of water and the amount of air mixed in can be easily adjusted, making it easy to select the level of sharpening when washing rice. It has the excellent feature of being highly adaptable to the washing of rice with various degrees of polishing.

[BRIEF DESCRIPTION OF THE DRAWINGS] The figures show the apparatus used in carrying out the method of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a plan view, and Fig. 3 is a partially omitted side view. , FIG. 4 is a sectional view of the main part. 1... Rice charging bar, 2... Rice washing tank, 3... Screw, 4... Rice collection tube, 5... Ejiekume. , 5a... Drive water pipe line, 6... First suction pipe, 7...
...Air intake cock, 9...Jet water separation device

Claims (1)

[Claims] 1 Install a rice collection cylinder on the lower side of the rice tank for rough-sharpening rice,
The lower part of a vertical suction pipe with an adjustable air intake part in the middle is inserted into the rice collecting cylinder, and the upper end of the suction pipe is driven perpendicular to the axis of the suction pipe. A rice washing device characterized in that it is connected to an ejector provided in a water pipe, and a discharge end connected to the driving water pipe is connected to a water separator.