JP2001286773A - Water-free type rice washing method and water-free type rice washing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-free type rice washing apparatus simple and compact in structure and low in cost and suitable as a rice washing apparatus used in a small-scaled good service industry, a restaurant, a hotel or a hospital. SOLUTION: The water-free type rice washing apparatus is constituted of polished rice and rice washing enclosure supply devices (20, 20'), a rice washing container (1) in which a mixture of polished rice and a rice washing enclosure is charged and a separator (3) for separating washed genuine polished rice, the rice washing enclosure and rice bran. The polished rice and rice washing enclosure supply devices (20, 20') are arranged above the rice washing container (1) and the separator (30) is arranged under the rice washing container (1) and a plurality of baffle plates (18, 18, etc.), are arranged in the rice washing container (1).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anhydrous rice washing method for obtaining pure polished rice which can be cooked as it is, that is, it separates or removes rice bran adhering to the surface of polished rice without using water. The present invention relates to a method and an anhydrous rice washing apparatus used for carrying out the method.

[0002]

2. Description of the Related Art Brown rice from which rice husks have been removed is cooked as it is for health reasons, etc., and is provided for eating. However, in general, a rice milling operation for removing rice bran on the surface of brown rice is added. . When this rice polishing operation is performed, white rice is obtained, but rice bran is mixed in the white rice. Therefore, white rice and rice bran are separated by, for example, a sieve, and the separated white rice is commercially available as polished rice. On the other hand, rice bran is feed for livestock,
It is used as fertilizer. Thus, the rice bran is separated and removed from the white rice, but the remaining rice bran adheres to the surface of the polished rice as is well known. Therefore,
Prior to cooking rice, rice is washed to remove rice bran with water.

[0003] By the way, when rice is washed with water, rice bran pollutes the water, and when drained as it is, it pollutes the environment. Also,
Resources that can be used as livestock feed or fertilizer are also wasted. Therefore, an anhydrous rice washing device for mechanically removing rice bran from the surface of polished rice has been developed, and pure polished rice that does not require washing with water has been distributed.
A screw type anhydrous rice washing device is known as one of the anhydrous rice washing devices being developed. The screw-type anhydrous rice washing apparatus is generally composed of a screw cylinder and a screw provided to be rotationally driven in the screw cylinder. Therefore, if polished rice or polished rice and the rice washing inclusions are supplied to the supply end of the screw, the polished rice or the polished rice and the rice washing inclusions are loaded when transported to the discharge end. In a state of being hung, they come into sliding contact with each other. Thereby, rice bran is separated from the surface of the polished rice. Therefore, when sieved, pure white rice that does not require water washing is obtained, and the separated rice bran,
It can be used for feed, fertilizer, etc.

[0004]

As described above, rice can be washed with a conventional screw-type anhydrous rice washing apparatus, but the conventional screw-type anhydrous rice washing apparatus requires a sliding contact time with the screw or a milled rice. In order to sufficiently remove rice bran by prolonging the friction contact time between the competitors, the distance between the supply start end and the discharge end is increased, that is, the axial length of the screw is increased. Since the shaft length is long, the size of the entire apparatus is increased, and there is a problem of installation space. In addition, since the shaft length is long, it is expensive. Further, the conventional anhydrous rice washing apparatus has a processing amount of 500 kg or more per hour and is suitable for a large-scale restaurant industry, but has a disadvantage that the business scale of the user is restricted. Therefore, the present invention is a relatively small food service industry, restaurants, hotels, hospitals, etc., can be easily implemented in anhydrous rice washing method and structure is simple and compact, and therefore inexpensive, small food service industry, An object of the present invention is to provide an anhydrous rice washing device suitable as a rice washing device used in restaurants, hotels, hospitals, and the like.

[0005]

The above object of the present invention is achieved by vibrating or oscillating a rice washing container provided with a plurality of baffles or boards. That is, in order to achieve the above object, the invention according to claim 1 places a mixture of polished rice and a rice-washing inclusion in a rice-washing container provided with baffles, and holds the rice-washing container for a predetermined time. The rice bran is adhered to the surface of the polished rice by vibrating or oscillating to bring the polished rice or the polished rice into sliding contact with the rice-washing inclusion. The invention according to claim 2 is a rice washing device comprising a rice washing container in which a mixture of polished rice and rice washing inclusions is placed, and driving means for driving the rice washing container in a vibrating or oscillating manner, A plurality of baffles or boards are provided inside the rice washing container. The invention according to claim 3 is a device for supplying polished rice and rice-washing inclusions, a rice-washing container in which a mixture of polished rice and rice-washing inclusions is placed, and pure polished rice and rice-washing inclusions that have been washed. A rice washing device comprising a rice bran and a separation device for separating rice bran, wherein the milled rice and the rice washing inclusion supply device are arranged above the rice washing container and the separation device is arranged below the rice washing container, respectively. A plurality of baffles or boards are provided inside the rice washing container.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the anhydrous rice washing apparatus S according to the present embodiment is a milled rice supply apparatus 20 and a rice washing inclusion supply apparatus 20 ′ which are located at the uppermost positions, and supplies these. It comprises a rice washing container 1 located below the devices 20, 20 ', a separating device 30 arranged below the rice washing container 1, and the like. The rice washing container 1 is configured to be vibrated or oscillated by a driving device as described later in detail.

The rice washing container 1 has a container shape as a whole,
The bottom wall of the lower portion is tapered toward the center. A discharge opening 2 is formed in the center of the lower end. Around the discharge opening 2, a flange 3 is attached, and a sliding-type opening / closing lid 4 that is slidably driven in the horizontal direction, that is, in the vibration or swinging direction of the rice washing container 1 in this embodiment, is attached to the flange 3. Is provided. Since the opening / closing lid 4 is of a sliding type, the entire water-free rice washing apparatus S is lower in comparison with the case where the double door is provided. The opening / closing lid 4 is driven by a driving device, for example, an air cylinder unit 5 having no problem of odor of hydraulic oil, in a direction to close the discharge opening 2 and in a direction to open it by a controlled predetermined amount. . The upper opening of the rice washing container 1 is formally closed by a lid 7 having an opening 6 in the center.

[0008] Under the rice washing container 1 thus constructed, a first pair of columns 8, 8 and a second pair of columns 8 '(8) are straddled over the discharge opening 2. ') And are attached. The lower ends of these columns 8, 8, 8 '(8') are fixed to support shafts 9, 9 'as also shown in FIG. The load wheels 10, 10, 10 '(1
0 ′) is provided rotatably. Also, the support shaft 9,
In the vicinity of both ends of 9 ′, guide shafts 11, 11, (11 ′,
11 ') is attached, and these guide shafts 11, 1
1, (11 ′, 11 ′), load wheels 10, 10, 1
Guide roller 1 that rotates in a direction perpendicular to 0 '(10')
2, 12, (12 ', 12') are provided rotatably. These load wheels 10, 10, 10 '(10')
1 rolls on the upper surfaces of a pair of linear guide rails 14 extending in the left-right direction in FIG. As a result, the rice washing container 1 is a linear guide rail 1
It is supported reciprocally on 4 and 14. The guide rollers 12, 12, (12 ', 12') are adapted to rotate by contacting the side surfaces of the linear guide rails 14, 14. Thereby, the load wheels 10, 10, 10 '(1
0 ') is prevented from falling off.

A driving device for driving the rice washing container 1 vibratingly or reciprocatingly in the left-right direction is fixed to a rotary motor 15 and an output shaft of the rotary motor 15 as shown in FIG. It comprises a rotating plate 16 having a predetermined weight and a drive arm 17. One end of the drive arm 17 is rotatably attached to the rotating plate 16 at a position deviated from the center of rotation, and the other end is swingably attached to the lower side of the rice washing container 1. . Therefore, when the rotation motor 15 is started, the rice washing container 1 is driven in the left-right direction in FIG. At this time, the rotating plate 16 also functions as a balancer.

[0010] Inside the rice washing container 1 having such a shape,
A plurality of baffles or boards 18, 18,... Are provided. The lower ends of the baffles 18, 18,... Are fixed to the bottom wall of the rice washing container 1 so as to be provided inside the rice washing container 1, but the baffles 18, 18,.
Is cut out as appropriate. Therefore, as shown in FIG. 1, between the lower ends of the baffles 18, 18,... And the bottom wall of the rice washing container, there are passages 19, 19,. Can be moved to other areas through these passages 19, 19,.... Thus, the baffle plate 1 provided in the rice washing container 1 is provided.
The number, size, installation direction, and the like of 8, 18,... Are not particularly limited, but in the embodiment shown in the plan view of FIG. It is provided in a staggered manner at a predetermined angle. Therefore, when the baffles 18, 18,... Are vibrated or oscillated in the direction of arrow Y, the mixture of the polished rice and the rice washing inclusions is indicated by arrows a, a '. Forces in both directions will act. The sliding effect of the mixture is enhanced by the force in the direction of arrow a, and the mixture is compressed by the force in the direction indicated by arrow a '. Thereby, the mixture is slid in a compressed state, and the effect of separating rice bran is enhanced.

As shown in FIG. 1, the polished rice supply device 20 and the rice rinsing inclusion supply device 20 'are symmetrical and have the same structure. On the other hand, the same reference numerals of the other rice washing inclusion supply device 20 'are added with a dash "'" and will not be described repeatedly.
The milled rice supply device 20 includes a hopper 21 whose lower half portion is narrowed toward the center. Then, a mechanical quantitative supply device, for example, a rotary feeder 22 is provided in the narrowed portion. Therefore, by controlling the number of revolutions of the rotary feeder 22, the amount of milled rice supplied to the rice washing container 1 is controlled. The milled rice supply device 20 configured as described above is
At a predetermined interval above the rice washing container 1, the lower end of the squeezed portion is attached to a base (not shown) such that the lower end portion faces the opening 6 of the lid 7 of the rice washing container 1.

As shown in FIG. 1, the separating device 30 includes a separating container 31 having a substantially rectangular planar shape, and first to third vibrating sieves 4 provided in the separating container 31.
1, 42 and 43. The mesh sizes of these vibrating sieves 41 to 43 are different from each other.
Therefore, these vibrating sieves 41 to 43 can be vibrated at a specific frequency in relation to the size of the sieve mesh, but in the present embodiment, the entire separation device 30 vibrates. . That is, the separation container 31 is supported by a plurality of coil springs 32, 32,..., And a vibrator 33 is attached to a side portion thereof. The first vibrating sieve 41 for separating the polished rice is provided at the uppermost part in the separation vessel 31 and is inclined to one side. The second vibrating sieve 42 for separating the rice washing inclusions is below the first vibrating sieve 41, and the third vibrating sieve 43 for separating the rice washing inclusions is also the second vibrating sieve 42. Below, it is provided in a staggered manner so that the inclination directions are different from each other. Thus the first
Since the third to fourth vibrating screens 41, 42, and 43 are provided in a staggered manner, the height of the separation device 30 is low.
The side wall of the separation vessel 31 corresponding to the lower end of the first vibrating sieve 41 has a first discharge slit 32 for taking out pure white rice.
On the side wall of the separation vessel 31 facing the lower ends of the second and third vibrating sieves 42 and 43, second and third discharge slits 35 and 36 for discharging the rice washing inclusions are opened. Have been. The lower end of the separation container 31 is formed in a tapered shape, and a rice bran discharge opening 37 is opened at the lower end. The separation device 30 configured as described above is provided below the rice washing container 1 in a state where mechanical vibration is insulated. The upper portion of the separation container 31 is
8, a part of the lid 38 serves as a guide 39, and a mixture of milled rice, rice washing inclusions, rice bran, and the like discharged from the discharge opening 2 is an upper end of the first vibrating screen 41. Is to be guided to.

Next, a rice washing method using the anhydrous rice washing apparatus S will be described. The polished rice is supplied to the hopper 21 of the polished rice supply device 20 and the hopper 21 ′ of the rice washing inclusion supply device 20 ′.
Inclusions for rice washing, such as bran, paddy, buckwheat hulls, or crushed products of natural food materials such as corn grits and crushed rice that have been subjected to high-speed and high-pressure extrusion sterilization treatment, or extruded fine foaming of natural food materials such as konjac and rice protein Put the rice washing inclusions consisting of body etc. The discharge opening 2 of the rice washing container 1 is closed with the opening / closing lid 4. Then, the rotary feeder 22 of the milled rice supply device 20 is driven at a predetermined speed and a predetermined number of revolutions. This allows
A predetermined amount of polished rice is supplied into the rice washing container 1. At the same time, the rotary feeder 22 'of the rice washing inclusion supply device 20'.
Is driven at a predetermined speed for a predetermined number of revolutions. Thus, the rice washing container 1 is mixed with a predetermined amount of the polished rice and the rice washing inclusions.
It is fed into the inside. That is, a mixture of the polished rice and the rice washing inclusions in a predetermined ratio is supplied.

When a predetermined amount of the mixture is supplied or when the supply is completed, the rotating motor 15 is started to rotate the rotating plate 16.
Is driven to rotate. The rice washing container 1 is driven to vibrate or swing in the left-right direction. As a result, the rice bran is separated from the polished rice by the contact between the polished rice or the sliding contact between the polished rice and the rice washing inclusions, and furthermore, by the contact between the polished rice and the baffles 18. . At this time, according to the present embodiment, the plurality of baffle plates 18, 18,... Are provided in a staggered manner with an inclination with respect to the vibration direction or the swing direction, so that the sliding contact is enhanced. Rice bran is further separated. Hereinafter, the same oscillating or oscillating processing is performed for a predetermined time or a predetermined number of times. The number of times is determined from the number of rotations of the rotary motor 15.

After processing for a predetermined time, the separating device 30 is vibrated by the vibrator 33. Then, the opening / closing lid 4 of the rice washing container 1 is opened by a predetermined amount, and the mixture of the rice bran separated from the polished rice, the polished rice, and the rice washing inclusions is separated by a predetermined amount into the separating device 30.
Supply to fall. At this time, the rice washing container 1 can be driven in a vibrating manner to smooth the discharge. The mixture supplied by dropping is sieved by the first vibrating sieve 41, and the sifted top is converted into pure polished rice and discharged to the outside through the first discharge slit. The rice washing inclusions and the rice bran fall and are supplied onto the second vibrating sieve 42 below the sieve. The second vibrating sieve separates the relatively large-diameter rice washing inclusions and discharges them to the outside through the second discharge slit 35, and the third vibrating sieve 43 forms the final rice washing inclusions. Is separated and discharged outside through the third discharge slit 36. The rice bran is discharged from the rice bran discharge opening 37 of the separation container 31. This completes one batch of anhydrous rice washing. By returning the separated rice-washing inclusions to the rice-washing inclusion supply device 20 ', a predetermined amount of the polished rice is washed in a batch manner as described above.

It is obvious that the present invention is not limited to the above embodiment. For example, it is clear that the upper surface of the linear guide rail can be corrugated to add a vertical movement to a horizontal vibration or oscillating movement. Alternatively, the upper portion of the baffle plate may be extended to above the rice washing container and fixed to a stationary member above the rice washing container, so that the lower portion of the baffle plate faces the inside of the rice washing container. Then, only the rice washing container is driven vibratingly or oscillatingly, and the baffle plate becomes a stationary baffle plate. It is clear that the same effect can be obtained by implementing the method in this way.

[0017]

As described above, according to the present invention, the mixture of the polished rice and the rice washing inclusions is placed in the rice washing container provided with the baffle plate, and the rice washing container is vibrated or shaken for a predetermined time. It is driven dynamically to bring the milled rice or the milled rice into sliding contact with the rice washing inclusions to separate the rice bran adhering to the surface of the milled rice, that is, a baffle plate is provided. Since the rice washing container is driven to vibrate or oscillate to wash the rice, a relatively small-scale user such as a restaurant industry, a restaurant, a hotel, a hospital, etc. can easily carry out the rice washing. obtain. According to another invention, a polished rice and rice-washing inclusion supply device, a rice-washing container in which a mixture of polished rice and rice-washing inclusions are placed, and a rice-washed pure polished rice and rice-washing inclusion and rice bran And a separation device for separating the polished rice and the rice washing inclusions are provided above the rice washing container and the separation device is provided below the rice washing container, respectively, and inside the rice washing container. Is provided with a plurality of baffles or boards, the polished rice to be processed in addition to the above effects, without using special power, from the polished rice and the rice washing inclusion supply device to the rice washing container, The mixture of the treated polished rice, the rice washing inclusions, and the rice bran has the effect of being transferred by gravity to the separation device. Pure polished rice that does not require washing with water can be obtained at the same time.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a partially sectioned anhydrous water washing apparatus according to an embodiment of the present invention.

FIG. 2 is a view showing a main part of an anhydrous rice washing apparatus according to an embodiment of the present invention, in which (a) is a side view showing a part of a lower part of a rice washing container in cross section, and (b) is rice washing. It is a top view of the baffle board provided in the container.

[Explanation of symbols]

S Rice washing device 1 Rice washing container 10 Load wheel 14 Linear guide rail 15 Rotary motor 16 Rotating plate 17 Drive arm 18 Baffle plate 20 Polished rice supply device 20 'Inclusion supply device for rice washing 30 Separation device

Claims (3)

[Claims] 1. A rice-washing container provided with a baffle plate is charged with a mixture of polished rice and rice-washing inclusions, and the rice-washing container is vibrated or oscillated for a predetermined time so that the polished rice is removed. Alternatively, an anhydrous rice washing method characterized by slidably contacting milled rice with a rice washing inclusion to separate rice bran adhering to the surface of the milled rice. 2. A rice washing apparatus comprising: a rice washing container in which a mixture of polished rice and a rice washing inclusion is placed; and driving means for driving the rice washing container in a vibrating or oscillating manner. An anhydrous rice washing apparatus, wherein a plurality of baffles or boards are provided inside. 3. A device for supplying polished rice and rice-washing inclusions, a rice-washing container containing a mixture of polished rice and rice-washing inclusions, and separating rice-washed pure polished rice, rice-washing inclusions and rice bran. A rice washing device comprising a separation device, wherein the polished rice and the rice washing inclusion supply device are arranged above the rice washing container and the separation device is arranged below the rice washing container, respectively. An anhydrous rice washing apparatus, wherein a plurality of baffles or boards are provided inside.