JPH04229148A - Rice washing processing and device therefor - Google Patents

Abstract

PURPOSE:To lower a cost for cleaning treatment of drain after washing rice and to miniaturize the whole rice washing processing device by washing rice with a small amount of water fed. CONSTITUTION:Weight of water to be fed to a rice washing part 3 is made into a relatively small amount of 2-50% weight of polished rice. A rice washing device consists of a rice washing part wherein A stirring rotator 18 is rotatably installed in a rice washing column 14 and a feed side of a rice washing chamber 19 is communicated with a rice feed opening 15 and a dehydrating part 4 wherein a rice feeding column equipped with a spiral blade 26 is rotatably fixed in a rotatably fixed porous wall column 25 and a delivery side of a dehydrating chamber 28 is connected to a rice discharging port 50. The rice washing part and the dehydrating part are installed in the same machine frame 2 and a nozzle 17 of feeding rice washing water is made to face the rice feed opening.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice washing and processing apparatus for producing so-called wash-free rice that does not require washing or soaking prior to cooking.

0002

BACKGROUND OF THE INVENTION Although most of the bran from white rice polished by a rice milling machine has been removed during the polishing process, a considerable amount of fine bran still remains attached to the white rice. If the rice was cooked as is, it would end up with a rice bran smell, so it was necessary to wash and soak the white rice before cooking. However, this washing and soaking of rice is time consuming and troublesome, and housewives tend to dislike it. Therefore, there has been a demand for wash-free rice that does not require washing or soaking and can be cooked simply by adding water directly.

[0003] The present applicant has already proposed a processing device for washing-free rice (Japanese Patent Application No. 1-244499). This machine consists of two rice washing machines, a dehydrating machine, and a drying machine, and the polished white rice is washed in the rice washing machine, dehydrated, and then dried in the drying machine to be processed into wash-free rice.

[0004] However, in the above rice washing processing apparatus,
Since the rice washing device and the dehydrating device are provided separately, there is a drawback that the entire device becomes large and the installation area becomes large, and the manufacturing cost also increases. Furthermore, since a large amount of water is used during rice washing, there is also a large amount of waste water after washing the rice, which has the drawback of requiring a large amount of cost for cleaning.

[0005]

[Problems to be Solved by the Invention] This invention solves the above-mentioned drawbacks, downsizes the entire device, reduces the installation area, and significantly reduces manufacturing costs. An object of the present invention is to provide a rice washing processing device which can reduce the processing cost of waste water after washing rice by washing rice with a water bottle.

[0006]

[Means for Solving the Problems] In order to achieve this object, the present invention has the following configuration. In a rice washing processing method in which polished rice and water are supplied to a rice washing section, the rice is washed by rotation of a stirring trochanter, and then continuously supplied to a dehydration section for dehydration, the weight of water supplied to the rice washing section is calculated as follows: The amount should be relatively small, about 2 to 50% of the weight.

[0007] A stirring trochanter is rotatably installed in the rice washing cylinder,
A rice washing chamber is formed by the rice washing cylinder and the stirring trochanter, and the rice washing section has a supply side of the rice washing chamber connected to a rice feeding port, and a rice washing section connected to a discharge side of the rice washing chamber, which are rotatably installed. A rice feeding cylinder equipped with spiral blades is rotatably installed in a porous wall cylinder, a dehydration chamber is formed by the porous wall cylinder and the rice feeding cylinder, and the discharge side of the dehydration chamber is connected to a rice draining port. The rice washing unit and the dewatering unit are arranged in the same machine frame, and a nozzle for supplying water for washing rice faces the rice supply port, thereby forming a rice washing processing device. do.

[0008]

[Function] When polished rice is supplied to the rice washing room from the rice supply port, water in an amount of about 2 to 50% of the weight of the polished rice is supplied from the nozzle to the rice washing room through the rice supply port. The polished rice supplied to the rice washing chamber undergoes a rice washing action by being reversed in flow due to the rotation of the stirring rotor, and the rice bran layer remaining in the polished rice is separated and eluted by the rice washing action. The washed white rice is supplied to the dehydration chamber and transported by the spiral blades of the rice transport tube, but in the dehydration chamber, it is dehydrated by the rotation of the perforated wall tube, and the dehydrated white rice is sent out of the machine through the rice discharge port. It is discharged.

[0009]

Embodiments An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a rice washing processing apparatus embodying the present invention.

The rice washing and processing apparatus 1 consists of a rice washing section 3 and a dewatering section 4 which are integrally provided in a machine frame 2, and a supply section 5 is connected to the rice washing section 3. A supply port 7 is provided at the top of the supply tank 6 of the supply section 5, and a supply port 8 is provided at the bottom.
This is a supply shutter that opens and closes by operating the air cylinder 10. A rotary valve 11 for quantitatively discharging polished rice is attached below the supply port 8, and 12 is a motor for rotating the rotary valve. The rotary valve 11 communicates with a rice supply port 15 opened in a rice washing cylinder 14 via a rice supply cylinder 13, and a nozzle 17 connected to a water supply pipe 16 faces the rice supply port 15.

A stirring trochanter 18 is horizontally suspended within the rice washing cylinder 14 so as to be freely rotatable, a rice washing chamber 19 is formed by the rice washing cylinder 14 and the stirring trochanter 18, and a pulley is attached to a shaft 20 connected to the stirring trochanter 18. 21 and the pulley 23 attached to the motor 22 are connected to the belt 2
I will contact you at 4.

A rice feeding tube 27 with spiral blades 26 attached thereto is rotatably mounted horizontally on the porous wall tube 25 of the dewatering section 4, and the rice feeding tube 27 and the porous wall tube 25 form a dewatering chamber 28. Porous wall tube 25
The dewatering cylinder 29 surrounding the dehydration cylinder 29 is connected to the support plates 52, 52 via the mounting bodies 30, 30, and the porous wall cylinder 25 is horizontally supported rotatably by bearings 31, 31 provided on the mounting body 30. The lower part of the dewatering cylinder 29 is connected to a suction pump 34 through a water suction chamber 32 and a water suction pipe 33, and an air supply hole 35 is provided around the rice feeding cylinder 27, and an air supply pipe is connected to the hollow rice feeding cylinder 27. Connect tube 36.

Pulleys 38 and 39 are attached to both ends of the connecting shaft 37, and one pulley 39 and a pulley 41 are attached to the shaft 40.
are connected by a belt 42, the other pulley 38 and a pulley 44 attached to a motor 43 are connected by a belt 45, and the pulley 44 and a pulley 46 are connected by a belt 47. A nozzle 48 is provided at the tip of the stirring rotor 18, and the nozzle 48 is connected to a water supply pipe 49, and 50 is a rice discharge port for discharging dehydrated white rice.

Next, the operation of the above configuration will be explained. The motors 12, 22, 43 and the suction pump 34 are started to operate the rice washing processing apparatus 1. Then, polished rice polished by a rice mill (not shown) is charged into the supply tank 6 from the input port 7, and the supply shutter 9 is opened by the operation of the air cylinder 10, and the rice is supplied to the rotary valve 11. A fixed amount of polished rice continuously flows down inside the rice supply cylinder 13 by the rotary valve 11 and is supplied to the rice washing chamber 19 from the rice supply port 15. When the polished rice flows down inside the rice supply cylinder 13, water is supplied from the nozzle 17 (in this embodiment, the weight of water supplied from the nozzle 17 is approximately 10% of the weight of polished rice).
). The white rice supplied to the rice washing chamber 19 is transferred to the stirring trochanter 1.
The flow is reversed by the rotation of step 8, and the rice is washed, and the rice bran layer remaining in the polished rice is separated and eluted (
The rice washing time is about 10-15 seconds).

The washed white rice is supplied to the dehydration chamber 28 by the stirring rotor 18, and at this time, it is washed by water supplied from the nozzle 48 (the weight of water supplied from the nozzle 48 is equal to the weight of white rice). (ie, the total weight of water supplied by the nozzles 17, 48 is about 20% of the weight of polished rice). The air supply cylinder 27 is approximately 1 minute per minute.
, 500 to 2,000 revolutions, and the spiral blades 26 are rotated by this rotation, and the polished rice is transported across the inside of the dehydration chamber 28. At this time, the porous wall tube 25, which rotates approximately 100 rotations slower than the rice feeding tube 27, performs dehydration, and the water containing the bran eluted from the polished rice is discharged from the holes of the porous wall tube 25. The discharged washed rice water falls through the water suction chamber 32 and is discharged from the water suction pipe 33 to the outside of the machine by the suction pump 34.

The polished rice in the dehydration chamber 28 is subjected to a dehydration action, and moisture on the surface of the polished rice is dried by the air blown from the air supply pipe 36 through the air supply hole 35 of the rice cylinder 27. Since the amount of water supplied in the rice washing section 3 is small and the washing time is relatively short, the water does not penetrate into the inside of the polished rice and sticks only to the surface, causing a blast effect. It can be easily dried. Note that the drying air may be heated by a heater or the like and then supplied from the air supply pipe 36 in order to further improve the drying effect. The polished rice that has undergone dehydration and drying in the dehydration chamber 28 is transported by the spiral blades 26 and discharged from the rice discharge port 50 to the outside of the machine, passes through a cyclone (not shown), and is sent to a storage tank or the like. .

FIG. 2 shows another embodiment of the invention. A rice washing section 3 and a dewatering section 4 communicating therewith are installed in the machine frame 2 of the rice washing processing device 1, and a rice feeding pipe 51 is connected to the rice feeding port 15 of the rice washing section 3, and a nozzle 17 is connected to the rice feeding port. Let's face the 15th. The rest is the same as in FIG. 1 and will therefore be omitted. To explain its operation, polished rice is forced through the rice supply pipe 51 by compressed air and supplied to the rice supply port 15, and at this time, water is supplied from the nozzle 17. After being washed in the rice washing section 3, the polished rice is washed by water supplied from the nozzle 48, dehydrated and dried in the dewatering section 4, and discharged from the rice discharge port 50 to the outside of the machine. As described above, since the rice washing section 3 and the dewatering section 4 are constructed in an upright manner, the installation area of the rice washing processing apparatus 1 is reduced, and the present apparatus can be installed even in a narrow workplace.

[0018] In the embodiments of the present invention,
Although the weight of water supplied was approximately 20% of the weight of polished rice, any suitable weight ratio from 2 to 50% may be selected.

[0019]

[Effect of the invention] According to the rice washing processing method of the present invention,
The weight of water supplied to the rice washing section is calculated based on the weight of polished rice by 2.
By using a relatively small amount of water (approximately ~50%), it is possible to wash rice with a small amount of water during rice washing, so the amount of rice-washed wastewater is small, and the cost required for cleaning the wastewater can be significantly reduced. can be lowered.

According to the rice washing and processing apparatus of the present invention, since the rice washing section and the dewatering section are arranged in the same machine frame, there is no need to provide a dewatering device separately from the rice washing apparatus, and the entire rice washing and processing apparatus can be made smaller. It is possible to reduce the manufacturing cost significantly.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view of a rice washing processing apparatus embodying the present invention.

FIG. 2 is a side sectional view of another embodiment of the rice washing processing apparatus.

[Explanation of symbols]

1　Rice washing processing equipment 2 Machine frame 3　Rice washing department 4 Dehydration section 5 Supply section 6 Supply tank 7 Input port 8 Supply port 9 Supply shutter 10 Air cylinder 11 Rotary valve 12 Motor 13　Rice supply cylinder 14　Rice washing cylinder 15 Rice feeder 16 Water supply pipe 17 Nozzle 18 Stirring trochanter 19 Rice washing room 20 axis 21 Pulley 22 Motor 23 Pulley 24 Belt 25 Porous wall tube 26 Spiral wing 27 Rice tube 28 Dehydration chamber 29 Dehydration cylinder 30 Mounting body 31 Bearing 32 Water absorption chamber 33 Water suction pipe 34 Suction pump 35 Air supply hole 36 Air supply pipe 37 Connecting shaft 38 Pulley 39 Pulley 40 axis 41 Pulley 42 Belt 43 Motor 44 Pulley 45 Belt 46 Pulley 47 Belt 48 Nozzle 49 Water supply pipe 50 Rice discharge port 51　Rice feed pipe 52 Support branch

Claims (2)

[Claims] [Claim 1] A rice washing processing method in which polished rice and water are supplied to a rice washing section and the rice is washed by rotation of a stirring trochanter, and then continuously supplied to a dehydration section for dehydration, the water being supplied to the rice washing section. A rice washing processing method characterized in that the weight of rice is reduced to a relatively small amount of about 2 to 50% of the weight of polished rice. Claim 2: A stirring trochanter is rotatably installed in the rice washing cylinder,
A rice washing chamber is formed by the rice washing cylinder and the stirring trochanter, and the rice washing section has a supply side of the rice washing chamber connected to a rice feeding port, and a rice washing section connected to a discharge side of the rice washing chamber, which are rotatably installed. A rice feeding cylinder equipped with spiral blades is rotatably installed in a porous wall cylinder, a dehydration chamber is formed by the porous wall cylinder and the rice feeding cylinder, and the discharge side of the dehydration chamber is connected to a rice draining port. and a dewatering section connected to the rice washing section, the rice washing section and the dewatering section are arranged in the same machine frame, and a nozzle for supplying water for washing rice faces the rice supply opening. Rice washing processing equipment.