JPH0824678A - Rice polishing equipment - Google Patents

Abstract

PURPOSE:To provide a rice polishing equipment which can polish rice in the best rice polished state to be provided for raw material rice in compliance with characteristics of polished rice desired by rice polishing workers. CONSTITUTION:A sample rice polishing means 101 for polishing sample rice extrated out of rice to be polished into a plurality of different polishing degrees provided in a rice polishing equipment with a rice polishing mechanism 3 which can polish rice to be polished in different states of polishing degrees, and sample rices of a plurality of different polishing degrees can be provided by the sample rice polishing means 101. The equipment also comprises sensing means 7 and 8 for sensing characteristics of smelling, whiteness and tasting respectively for the sample rices of different polishing degrees, a quality variation finding means 102 for finding respectively the state of variation in the characteristics of smelling, whiteness and tasting of sample rices as the functions of polishing degrees, a polishing degree selecting means 103 for selecting the polishing degree for enhancing the preferential quality characteristics and a main rice polishing means 104 for polishing the remaining rice to be polished in compliance with the polishing degree selected by the polishing degree selecting means 103.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice-polishing facility equipped with a rice-polishing mechanism capable of rice-polishing target rice in a state of different precision.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 1, a rice milling equipment 1 has a structure capable of adjusting its lapping accuracy, and a plurality of rice milling machines S are provided on the lower side of a brown rice receiving hopper 2. And unloading route 4 that can discharge milled rice from each stage
It was made possible to obtain milled rice with different lapping precision by providing. In addition, there is also a configuration that has a single rice milling machine and circulates the milled rice from the lower side of this rice milling machine to the upper side of the rice milling machine and adjusts the number of times of this circulation to adjust the precision of the milling. Are known. Now,
In this way, when adjusting milling accuracy to perform rice polishing,
Conventionally, before the rice-polishing operation, the operator checked the state of the rice and decided the slaughter accuracy (rice-polishing degree).

[0003]

Therefore, the setting of the polishing accuracy in the rice-polishing operation depends largely on the operator's feelings, and the standard differs for each worker, and the rice-polishing operation according to a certain standard is required. Was not done. Meanwhile,
It may be necessary to mill rice with different storage periods, rice with different production years and varieties, and even imported rice with significantly different qualities. It was impossible to perform the (whiteness, taste) in the best condition of the raw rice and the characteristics desired by the rice miller (whether odor, whiteness, or taste has priority). Therefore, an object of the present application is to obtain a rice-polishing facility capable of performing rice-polishing in the best rice-polishing state that raw rice can have according to the characteristics desired by a rice-polishing operator for polished rice.

[0004]

[Means for Solving the Problems] In order to achieve this object, the characteristic configuration of the rice polishing equipment according to the present invention according to claim 1 is that the sample rice extracted from the rice to be rice-polished is subjected to a plurality of different precisions by the rice polishing mechanism. The detection mechanism that detects the quality characteristics of odor characteristics, whiteness characteristics, and taste characteristics of the sample rice polishing method for rice polishing and the sample rice of different polishing accuracy obtained by the sample rice polishing method Equipped with quality change deriving means for obtaining the change states of the odor characteristics, whiteness characteristics, and taste characteristics of the sample rice as a function of straining accuracy, and between the odor characteristics, whiteness characteristics, and taste characteristics required for product rice. According to the mutual priority of the quality characteristics in the quality characteristics, the grinding accuracy selection means for selecting the grinding accuracy at which the quality characteristics to be prioritized become higher, and the remaining rice milled according to the grinding accuracy selected by the grinding accuracy selection means. Lies in having this rice operating means for rice operating elephants rice in rice mechanism. Further, in such a rice polishing equipment, the detection mechanism for detecting the whiteness characteristic and the taste characteristic of the sample rice irradiates the sample rice with near infrared rays and spectroscopically analyzes the light reflected or transmitted from the sample rice. By doing so, a spectroscopic analyzer that obtains the absorbance spectrum of the sample rice and obtains the whiteness and taste of the sample rice from the obtained absorbance spectrum is preferable. This is the characteristic configuration of the rice polishing equipment according to claim 2 of the present application. And
Their actions and effects are as follows.

[0005]

That is, in the rice polishing equipment according to claim 1, the sample rice, which is a part thereof, is extracted from the rice to be polished by the sample rice polishing means, and the sample rice is polished with a plurality of different polishing accuracy. . As a result, it is possible to obtain a plurality of sample milled rices with different milling accuracy. Furthermore, the odor characteristic, whiteness characteristic, and taste characteristic of each of these sample polished rices are detected by the detection mechanism. Then, the detected quality characteristics are arranged by the quality change deriving means in relation to the accuracy of the hammer. The data arranged at this time is, for example, as shown in FIG. In the figure, the horizontal axis represents the bran removal rate that uniquely corresponds to the grinding accuracy, and the vertical axis represents the quality characteristics. And in the figure, s1, s
An example is shown in which the accuracy is changed to 3 states of 2 and s3, and the -X- line indicates the change state of the odor (fragrance) characteristics,
The ◯ -line indicates the change state of the whiteness characteristic, and the −Δ− line indicates the change state of the taste characteristic. Therefore, it is understood that in this rice, it is best to select the s2 precision for odor characteristics and the s3 precision for taste characteristics. Based on the change index obtained by the quality change deriving means, the row precision selecting means selects the row precision suitable for the priority order in accordance with the priority order of the quality characteristics. Then, the remaining rice to be rice-milled with the selected precision is polished by the rice-polishing mechanism by this rice-polishing operation means. As a result, it is possible to obtain milled rice with good milling accuracy in the characteristics desired by the milling operator. Further, in the rice polishing equipment according to claim 2, since a spectral analysis device for detecting the whiteness and taste is used by a spectral analysis method, for example, this is applied to a transportation site to which the milled rice is transferred. With a simple configuration that is simply arranged, detection can be performed easily without making the equipment system large.

[0006]

[Effects of the Invention] Therefore, the setting of the accuracy of milling in the operation of polishing rice is determined by the detection mechanism based on a certain standard such as odor (fragrance), whiteness, and taste as quality standard indexes.
With the characteristics desired by the operator, it has become possible to carry out rice milling with good grinding accuracy. Therefore, recently, when it is necessary to polish rice with different storage periods, rice with different production years and varieties, and even imported rice with greatly different qualities, the quality (smell, whiteness, taste) of polished rice is In addition to being able to achieve the best condition that the raw rice has, by performing the rice polishing operation, the characteristics desired by the rice miller (whether odor, whiteness, or taste are prioritized according to the requirements of the polished rice, customer, etc.) Can be provided. Furthermore, it is possible to reduce the bran removal rate (which is inevitably set to the high side), which is conventionally set to the momentum-safe side, to the proper state, thus improving the yield. It becomes possible.

[0007]

Embodiments of the present application will be described with reference to the drawings. The configuration of the rice polishing equipment 1 of the present application is shown in FIG. The rice milling equipment 1 includes a receiving hopper 2 into which rice to be milled is input,
It comprises a rice-polishing mechanism 3 in which three rice-polishing machines S are connected in parallel, and an unloading path 4 for unloading rice that has already been rice-milled.
Further, the carry-out path 4 is provided with a sample rice transport path 5 through which sample rice is flown and a product rice transport path 6 through which product rice is transported, on the downstream side. As shown in the figure, the sample rice transport path 5 is provided with a spectroscopic analyzer 7 that receives each sample rice flowing in the path 5 and detects the whiteness and taste of the sample rice, and an odor. An odor detecting device 8 for detecting is provided. These devices 7 and 8 form a detection mechanism. On the other hand, the product rice transport path 6 is provided with a product rice hopper 9 for storing polished rice. The operation of the above-described rice polishing machine S, the spectroscopic analysis device 7, and the odor detection device 8 and the rice to the spectroscopic analysis device 7, the odor detection device 8, and the product rice hopper 9 that make up each detection device S and each detection mechanism. Supply and transport, and in these cases, the opening and closing operations of the plurality of on-off valves 10 that determine the rice transport route are performed by the control means 100 provided in the computer 11 that controls the operations of the devices S, 7, and 8. .

The individual parts will be described in more detail below. The rice-polishing mechanism 3 is provided with three rice-polishing machines S as shown in the drawing, which are connected in parallel. Further, a first intermediate connection for transporting rice from the outlet side of the first rice mill S1 to the inlet side of the second rice mill S2, and further from the outlet side of the second rice mill S2 to the inlet side of the third rice mill S2. A path L1 and a second intermediate connection path L2 are provided. Therefore, in this rice polishing mechanism 3, the rice that has individually passed through the first rice polishing machine S1, the second rice polishing machine S2, and the third rice polishing machine S3 is
The milling accuracy (bran removal rate) is the lowest, and the first rice mill S1, the first intermediate connecting path L1, and the second
The rice that has passed through the rice polishing machine S2, the second intermediate connecting path L2, and the third rice polishing machine S3 in this order is milled to the state in which the rice polishing accuracy (bran removal rate) is the highest. Further, in the latter example, the rice after rice polishing obtained from the second rice polishing machine S2 is in an intermediate state of its accuracy in brazing (ratio of bran removal). That is, by selecting the rice transport path, the rice polishing mechanism 3 can adjust the precision of the obtained rice. Here, the selection of the transport route is performed by the opening / closing valve 10 provided in the route, and this opening / closing operation is performed by the control means 100 described above.

The spectroscopic analyzer 7 irradiates the sample rice with near-infrared light and spectroscopically analyzes the light reflected or transmitted from the sample rice to obtain the absorbance spectrum of the sample rice, and from the obtained absorbance spectrum. The whiteness and taste of sample rice are obtained. For this purpose, the spectroscopic analyzer 7 includes a light source 7a for irradiating the sample rice with near infrared rays.
And a concave diffraction grating 7b that separates the light that passes through or is reflected from the sample rice (the example shown shows the case of transmission), and an array type that simultaneously receives the multi-wavelength component light split by the grating 7b. The light receiving element 7c is provided. Then, the absorbance spectrum of the sample rice is obtained from the light received by the array type light receiving element 7c, and the calibration formula stored in advance from the information on the absorbance spectrum of the specific wavelength (the second derivative value in the wavelength region of the absorbance spectrum) Based on the above, the whiteness and taste of the sample rice are calculated. The odor detection device 8 is composed of a so-called odor sensor, and can detect the odor emitted from the rice bran component. As the odor sensor, a gas chromatograph gas sensor, a semiconductor gas sensor (for example, a portable odor sensor XP-329 Series manufactured by New Cosmos Electric Co., Ltd.), or the like is used.

Next, the configuration of the control means 100 provided in the control computer 11 of the present application will be described. The control means 100 includes a sample rice polishing means 101, a quality change deriving means 102, a polishing accuracy selecting means 103, a rice polishing operation means 104, each rice polishing machine S, and the opening / closing valve 1 described above.
It is composed of a control system for 0. The operation of each means will be described together with its operation with reference to the operation flow shown in FIG. Here, each means is configured to sequentially operate the predetermined opening / closing valve 10, the rice polishing machine S, and the detection mechanisms 7 and 8 while carrying rice to perform a predetermined operation. The sample rice polishing means 101 described above extracts sample rice, which is a part thereof, from the rice to be rice-polished, and also polishes the sample rice with a plurality of different polishing accuracy (steps 1 and 2 shown in FIG. 2). With respect to these sample rices that have been milled with different milling accuracy, the spectroscopic analysis device 7 and the odor detection device 8 constituting the detection mechanism described above are used to measure the odor characteristics, whiteness characteristics, which are the quality characteristics of each of the sample rices. The taste characteristics are detected (steps 3, 4, 5 shown in FIG. 2). Next, the quality change deriving unit 102 obtains the change states of the odor characteristics, whiteness characteristics, and taste characteristics of the sample rice as a function of the grinding accuracy, based on the detection results of the detection mechanisms 7 and 8 (see FIG. 2). Step 6) shown. An example of this change situation is the correlation diagram shown in FIG. 3 described above. Although it is shown graphically here, this may be obtained as a simple number table. Then, according to the priority order among the quality characteristics among the odor characteristics, whiteness characteristics, and taste characteristics required for the product rice, which is input from the input device 12 provided in the control computer 11, the precision measuring means 103.
However, it selects the row precision with which the quality characteristic to be prioritized becomes high (steps 7 and 8 in FIG. 2). In the case of the rice shown in FIG. 3, the s2 precision is selected when the odor characteristic is prioritized, and the s3 precision is selected when the taste characteristic is prioritized. If whiteness is prioritized, the highest degree of slag accuracy will be selected for consideration.

Now, when the proper rice-milling precision is selected and determined in this way, the rice-polishing operation means 104 causes the remaining rice-rice to be polished to the rice-milling mechanism selected by the above-mentioned rice-milling accuracy selecting means 103. The rice polishing operation is performed in step 3 (step 9 in FIG. 2).

[Other Embodiments] In the above-mentioned configuration, a plurality of rice milling machines are provided on the transportation path, and the rice is carried out from the appropriate portion to adjust the precision of brazing (degree of bran removal). It is also possible to equip a small number of rice milling machines to circulate the rice to be milled between the upper side and the lower side of the rice milling machine, and change the number of circulations to change the degree of milling. it can. In this case, the number of rice polishing machines can be reduced, so that the equipment cost can be reduced. Further, in the above embodiment, the product rice transport path 6
Although the sample rice transport path 5 and the sample rice transport path 5 are separately configured, the sample rice transport path and the product rice transport path are configured to be the same, and only the sample is discharged and discarded from the product rice hopper that should be provided in the product rice transport path. It may be configured. In this case, the transport path can be partially omitted, and the equipment cost can be reduced.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Diagram showing the structure of rice polishing equipment

[Fig. 2] Flow chart showing the order of operation of rice polishing equipment

FIG. 3 is a diagram showing changes in the bran removal rate and quality characteristics.

[Explanation of symbols]

 3 Rice Polishing Mechanism 7 Spectroscopic Analyzer 101 Sample Rice Polishing Means 102 Quality Change Deriving Means 103 Polishing Accuracy Selecting Means 104 This Rice Polishing Operating Means

Claims (2)

[Claims] 1. A rice-polishing facility comprising a rice-polishing mechanism (3) capable of rice-polishing target rice in a state of different milling precision, wherein sample rice extracted from said rice-polishing target rice is said rice-polishing mechanism (3). Odor characteristics which are quality characteristics of the sample rice polishing means (101) that polishes rice with different polishing accuracy by a plurality of samples and the plurality of sample rice having different polishing accuracy obtained by the sample rice polishing means (101). A quality change deriving means (102) for detecting the change states of the odor characteristic, the whiteness characteristic, and the taste characteristic of the sample rice as a function of the bowling accuracy, the detection mechanism detecting the whiteness characteristic and the taste characteristic, respectively. A roaring accuracy selecting means (103) for selecting roaring accuracy with which the quality characteristics to be prioritized become higher in accordance with the priority order of the quality characteristics among the odor characteristics, whiteness characteristics, and taste characteristics required for product rice. Equipped with Serial pearling degree selection means (103)
A rice-polishing facility equipped with this rice-polishing operation means (104) for operating the remaining rice to be rice-milled by the rice-polishing mechanism (3) according to the milling accuracy selected by. 2. The detection mechanism for detecting the whiteness characteristic and the taste characteristic of the sample rice, irradiating the sample rice with near-infrared rays, and spectroscopically analyzing the light reflected or transmitted from the sample rice. A spectroscopic analysis device (7) for obtaining the absorbance spectrum of the sample rice according to, and obtaining the whiteness and taste of the sample rice from the obtained absorbance spectrum.
The listed rice milling equipment.