CN111330667A - Refining method for rice processing - Google Patents
Refining method for rice processing Download PDFInfo
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- CN111330667A CN111330667A CN202010195629.1A CN202010195629A CN111330667A CN 111330667 A CN111330667 A CN 111330667A CN 202010195629 A CN202010195629 A CN 202010195629A CN 111330667 A CN111330667 A CN 111330667A
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- rice
- paddy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B5/00—Grain treatment not otherwise provided for
- B02B5/02—Combined processes
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Abstract
The invention relates to the technical field of rice processing, and discloses a refining method for rice processing, which comprises the following steps: the corn removes the impurity, the corn screening, the corn is shelled, millet coarse separation and choice, husk rice and polishing, look selection and grading, disinfect and packing, through the weight of the corn of weighing, can carry out the experiment in earlier stage, and what the corn of what weight needs water of what content, this time add suitable water to atomizing device in, and with the even moist corn that sprays of water, make the brown rice whitening moisture keep between 13.5% -15.0% in the corn, adopt brown rice atomizing to soak water and moisten brown for a period of time, increase the coefficient of friction on brown rice top layer, be favorable to grinding and the separation of brown rice cortex, can reduce the whitening pressure, reduce the broken rice of husk rice in-process, the rice rate of going out is improved. The refining method for rice processing can solve the problem that the brown rice in the rice has low water content and more broken rice is generated in the processing.
Description
Technical Field
The invention relates to the technical field of rice processing, in particular to a refining method for rice processing.
Background
The rice is one of the traditional staple foods in China and is also a main food for people in the south of China. Rice is the basic food for supplementing nutrients, contains protein, fat, vitamins and 11 minerals besides carbohydrate, and can provide comprehensive nutrition for human body. Along with the continuous improvement of the living standard of people, the quality requirement of consumers on rice is higher and higher, the requirement on the quality of the rice is reflected on the quality and the taste, the sensory requirement on the rice is higher and higher, and particularly, the rice which is excellent in quality and has a round, mellow and crystal-clear appearance is more favored by the consumers. Therefore, it is necessary to refine rice during the rice processing. However, the brown rice in the existing paddy rice has low moisture, so that more broken rice is generated in the processing, the quality of the rice is influenced, and the processing of the high-quality rice meeting the sensory requirements of consumers is not facilitated.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a refining method for rice processing, which has the advantages of enabling brown rice to contain proper water, reducing whitening pressure, reducing broken rice generated in the processing, improving the whole rice yield and the like, and solves the problem that the brown rice in paddy has low water content and causes more broken rice generated in the processing.
(II) technical scheme
In order to realize the purposes of ensuring that the brown rice contains proper water, reducing the whitening pressure, reducing broken rice generated in processing and improving the whole rice yield, the invention provides the following technical scheme: a refining method for rice processing comprises the following steps:
s1, removing impurities from the paddy: removing weeds, straw scraps and stones in the rice by using a rotary screen or a vibrating screen;
s2, paddy screening: removing lighter impurities such as dust in the paddy by adopting an air separation method, blowing out empty paddy to separate from full paddy, and collecting the empty paddy;
s3, rice husking: weighing the screened paddy, sending the paddy into an atomizing device, adding proper water into the atomizing device according to the weight of the paddy batch, wetting the paddy, pouring the wetted paddy into a paddy huller for hulling, reasonably adjusting rolling and linear speed difference, and removing paddy hulls;
s4, separating and selecting the rough rice: separating brown rice from unhulled rice by using a brown rice separator, and removing smaller grains and crushed grains by using a thickness classifier;
s5, rice milling and polishing: performing multistage light grinding by using a rice mill, and performing multistage polishing on complete rice grains by using a polishing machine;
s6, color selection and grading: removing yellow rice grains and heterochromatic impurities from the polished rice by using a color selector, and then grading and screening the rice according to the color and the length of the rice;
s7, sterilizing and packaging; sterilizing rice in ultraviolet sterilizing box, and vacuum packaging to obtain refined rice.
Preferably, the most suitable brown rice milling moisture in the step S3 is 13.5% to 15.0%, and the wet rice is separately processed back to rice huller by one rice huller.
Preferably, 3-4 passes of whitening are selected in step S5, and 2 passes of polishing are adopted.
Preferably, the temperature of the grain milling environment in step S5 is 30 ℃ to 38 ℃.
Preferably, ultraviolet radiation is used in the step of S7, and the wavelength of the ultraviolet light is 350-400 nm.
Preferably, the packing bag in the step S7 is a plastic bag, and the freshness of the rice is ensured by filling nitrogen into the packing bag.
(III) advantageous effects
Compared with the prior art, the invention provides a quantitative cement and material feeding device capable of automatically adding water, which has the following beneficial effects:
according to the refining method for rice processing, the previous experiment can be carried out by weighing the weight of the rice, the amount of water required by the rice with the weight is obtained, the proper water is added into the atomizing device at this time, and the water is uniformly sprayed to moisten the rice, so that the milled water of the brown rice in the rice is kept between 13.5% and 15.0%. The brown rice is atomized, watered and moistened for a period of time, the friction coefficient of the surface layer of the brown rice is increased, grinding and rubbing of the surface layer of the brown rice are facilitated, the grinding pressure can be reduced, broken rice in the rice grinding process is reduced, the rice yield is improved, meanwhile, the uniform grinding of finished rice is facilitated, the quality of the rice is improved, and the processing of the high-quality rice meeting the sensory requirements of consumers is facilitated.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A refining method for rice processing comprises the following steps:
s1, removing impurities from the paddy: removing weeds, straw scraps and stones in the rice by using a rotary screen or a vibrating screen; can remove various impurities in the paddy.
S2, paddy screening: removing lighter impurities such as dust in the paddy by adopting an air separation method, blowing out empty paddy to separate from full paddy, and collecting the empty paddy; can detach empty corn, avoid empty corn to influence the follow-up processing of plump corn, simultaneously, also practice thrift the power consumption of processing empty corn.
S3, rice husking: weighing the screened paddy, sending the paddy into an atomizing device, adding proper water into the atomizing device according to the weight of the paddy batch, wetting the paddy, pouring the wetted paddy into a paddy huller for hulling, reasonably adjusting rolling and linear speed difference, and removing paddy hulls; through the weight of weighing the corn, can carry out the experiment of earlier stage to reach what amount of water of what amount of weight of corn needs, add suitable water to atomizing device this time, and with the even spraying moist corn of water, make the brown rice whitening moisture in the corn keep between 13.5% -15.0%. The brown rice is atomized, watered and moistened for a period of time, the friction coefficient of the surface layer of the brown rice is increased, grinding and rubbing of the surface layer of the brown rice are facilitated, the grinding pressure can be reduced, broken rice in the rice grinding process is reduced, the rice yield is improved, meanwhile, the uniform grinding of finished rice is facilitated, the quality of the rice is improved, and the processing of the high-quality rice meeting the sensory requirements of consumers is facilitated.
S4, separating and selecting the rough rice: separating brown rice from unhulled rice by using a brown rice separator, and removing smaller grains and crushed grains by using a thickness classifier; can select the high-quality grains meeting the requirements.
S5, rice milling and polishing: performing multistage light grinding by using a rice mill, and performing multistage polishing on complete rice grains by using a polishing machine; the rice is milled in multiple ways, the pressure in the rice mill is small, the rice is milled lightly and finely, the damage to endosperm is small, the broken rice is small, the rice yield is improved, the unevenness of coarse white is reduced, the polishing removes the floating bran on the surface of the rice grains by virtue of the friction action, the smoothness of the surface of the rice grains is improved, and the rice is kept fresh.
S6, color selection and grading: removing yellow rice grains and heterochromatic impurities from the polished rice by using a color selector, and then grading and screening the rice according to the color and the length of the rice; rice of various qualities can be classified so as to sell different prices.
S7, sterilizing and packaging; sterilizing rice in ultraviolet sterilizing box, and vacuum packaging to obtain refined rice.
The most suitable brown rice whitening water content in the step S3 is 13.5% -15.0%, and the wet rice is separately processed back to rice huller by one rice huller.
And 3-4 steps of whitening are selected in the step of S5, and 2 steps of polishing are adopted.
The temperature of the grain grinding environment in the step S5 is 30-38 ℃.
In the step S7, ultraviolet light is used for irradiation, and the wavelength of the ultraviolet light is 350-400 nm.
The packaging bag in the step S7 is a plastic bag, and the freshness of the rice is ensured by filling nitrogen into the packaging bag.
In summary, according to the refining method for rice processing, the previous experiment can be carried out by weighing the weight of the rice, and the required water content of the rice with the weight is obtained, and the proper water is added into the atomizing device and is uniformly sprayed to wet the rice, so that the water content of the brown rice milled in the rice is kept between 13.5% and 15.0%. The brown rice is atomized, watered and moistened for a period of time, the friction coefficient of the surface layer of the brown rice is increased, grinding and rubbing of the surface layer of the brown rice are facilitated, the grinding pressure can be reduced, broken rice in the rice grinding process is reduced, the rice yield is improved, meanwhile, the uniform grinding of finished rice is facilitated, the quality of the rice is improved, and the processing of the high-quality rice meeting the sensory requirements of consumers is facilitated.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A refining method for rice processing is characterized in that: the method comprises the following steps:
s1, removing impurities from the paddy: removing weeds, straw scraps and stones in the rice by using a rotary screen or a vibrating screen;
s2, paddy screening: removing lighter impurities such as dust in the paddy by adopting an air separation method, blowing out empty paddy to separate from full paddy, and collecting the empty paddy;
s3, rice husking: weighing the screened paddy, sending the paddy into an atomizing device, adding proper water into the atomizing device according to the weight of the paddy batch, wetting the paddy, pouring the wetted paddy into a paddy huller for hulling, reasonably adjusting rolling and linear speed difference, and removing paddy hulls;
s4, separating and selecting the rough rice: separating brown rice from unhulled rice by using a brown rice separator, and removing smaller grains and crushed grains by using a thickness classifier;
s5, rice milling and polishing: performing multistage light grinding by using a rice mill, and performing multistage polishing on complete rice grains by using a polishing machine;
s6, color selection and grading: removing yellow rice grains and heterochromatic impurities from the polished rice by using a color selector, and then grading and screening the rice according to the color and the length of the rice;
s7, sterilizing and packaging; sterilizing rice in ultraviolet sterilizing box, and vacuum packaging to obtain refined rice.
2. The refining method of rice processing according to claim 1, wherein: the most suitable brown rice whitening water content in the step S3 is 13.5% -15.0%, and the wet rice is separately processed back to rice huller by one rice huller.
3. The refining method of rice processing according to claim 1, wherein: and 3-4 steps of whitening are selected in the step of S5, and 2 steps of polishing are adopted.
4. The refining method of rice processing according to claim 1, wherein: the temperature of the grain grinding environment in the step S5 is 30-38 ℃.
5. The refining method of rice processing according to claim 1, wherein: in the step S7, ultraviolet light is used for irradiation, and the wavelength of the ultraviolet light is 350-400 nm.
6. The refining method of rice processing according to claim 1, wherein: the packaging bag in the step S7 is a plastic bag, and the freshness of the rice is ensured by filling nitrogen into the packaging bag.
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| CN202010195629.1A CN111330667A (en) | 2020-03-19 | 2020-03-19 | Refining method for rice processing |
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| CN202010195629.1A CN111330667A (en) | 2020-03-19 | 2020-03-19 | Refining method for rice processing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111972614A (en) * | 2020-08-31 | 2020-11-24 | 亿五农业发展有限公司 | Semi-coarse rice and processing method thereof |
| CN112044499A (en) * | 2020-08-28 | 2020-12-08 | 天津黄庄稻香米业有限公司 | Rice dust removal processing method |
| CN112206851A (en) * | 2020-09-24 | 2021-01-12 | 海南能国米业有限公司 | Fine processing method of rice |
| CN114345437A (en) * | 2021-11-01 | 2022-04-15 | 杨晓兰 | Rice fine processing technology |
| CN115069327A (en) * | 2022-06-24 | 2022-09-20 | 国家粮食和物资储备局科学研究院 | Polished round-grained rice processing method based on whiteness model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20200626 |
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