CN109126938A - A kind of low temperature process method for rice finished product - Google Patents

A kind of low temperature process method for rice finished product Download PDF

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Publication number
CN109126938A
CN109126938A CN201811299544.7A CN201811299544A CN109126938A CN 109126938 A CN109126938 A CN 109126938A CN 201811299544 A CN201811299544 A CN 201811299544A CN 109126938 A CN109126938 A CN 109126938A
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China
Prior art keywords
rice
paddy
rough
finished product
polishing
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CN201811299544.7A
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Chinese (zh)
Inventor
王建华
郜志军
李志华
刘伟
徐超
杨小彦
王志新
王帅
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NINGXIA HAOWANG RICE INDUSTRY GROUP Co Ltd
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NINGXIA HAOWANG RICE INDUSTRY GROUP Co Ltd
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Priority to CN201811299544.7A priority Critical patent/CN109126938A/en
Publication of CN109126938A publication Critical patent/CN109126938A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B5/00Grain treatment not otherwise provided for
    • B02B5/02Combined processes

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  • Adjustment And Processing Of Grains (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a kind of low temperature process methods for rice finished product, including cleaning process, husking with paddy is rough separates, low-temperature rice whitening, polishing, cool rice, classification, color sorting, second polishing, secondary grading, multiple steps such as packing, by control temperature at 10 DEG C or less, successively use sand roller device, two sand roller devices, three iron roll devices carry out multistage light stone roller to brown rice, it is accurately polished after cool rice, and by being improved to nodes multiple in system, greatly reduce broken rice rate, improve to obtain rice rate, both guaranteed that rice smooth appearance was bright, remain nutritional ingredient to greatest extent again, keep the quality of raw grain.

Description

A kind of low temperature process method for rice finished product
Technical field
The present invention relates to rice manufacture fields, and in particular to a kind of low temperature process method for rice finished product.
Background technique
Traditional Mill technique only passes through a rice mill and applies crunch to rice, and paddy is made to force to separate with rice benevolence, Nutrient is just destroyed in powerful " tearing " and remains little, and multistage light grind is referred to as " traditional handicraft under high-tech ", The taste of rice ecosystem is ground.Not only guaranteed that rice smooth appearance was bright by multistage light grind, but also had remained to greatest extent Nutritional ingredient keeps the quality of raw grain;The needs of high quality white rice market comsupton are met, competitive power of product is promoted and brand is known Name degree.
The patent of Publication No. CN207385552U, which discloses one kind, can reduce the rice production system cracked rice, and the rice is raw Production system includes by elevator, conveyer belt or the sequentially connected receiving warehouse of pipeline, receiving sieve, vibrating screen, suction stone remover, the One magnetic separator, husking unit, blowing stone-removing machine, gravity type paddy separator, brown rice condition storehouse, the second magnetic separator, low temperature rice mill Group, cool rice barn, length grading sieve, the first polishing machine, color selector, the second polishing machine, white rice grader, roller recleaner screen and metering Packing machine.The method that the specific production system of the utility model uses low temperature to rice milling process, improves out to a certain extent Rice rate, reduces broken rice rate, but substantial improvements are not made in the concrete operations of the critical process such as the rough separation of paddy, husk rice.
Summary of the invention
To solve the above-mentioned problems, the invention proposes one kind more systematic perfectly, raising rice milling yield, reduction broken rice rate Low temperature process method.
To achieve the goals above, technical solution of the present invention is as follows:
A kind of low temperature process method for rice finished product, comprising the following steps:
S1, cleaning process: large, medium and small light miscellaneous, ferromagnetic metal impurity, sandstone, empty grain in removal paddy;
S2, husking and paddy is rough separates: paddy removes rice husk by husking equipment, and is obtained only by husked rice separator It is rough;
S3, low-temperature rice whitening: control temperature is at 10 DEG C hereinafter, successively using sand roller device, two sand roller devices, three iron rolls Device gently grinds brown rice, removes brown rice peel layer;
S4, polishing: the dust of rice surface is removed by polishing machine;
S5, cool rice: the temperature of rice is reduced using cooling device;
S6, classification: being classified rice, removes small brokens;
S7, color sorting: heterochromatic grain and chalk grain are removed by color selector;
S8, second polishing: the brightness of rice is promoted by polishing machine;
S9, secondary grading: the rice after polishing is classified, and collects whole rice respectively, cracking rice carries out separating utilization;
S10, packing: rice finished product is packaged by ordinary packing or vacuum packaging or gas flush packaging.
Brown rice need to be removed brown rice peel layer by husk rice process, can just make it have excellent edible quality, and can mention Its high commodity value.But also contain more nutritional ingredient in brown rice peel layer, such as crude fat, crude protein, minerals, vitamin Deng, by brown rice peel layer all remove while, these nutritional ingredients can be also largely lost therewith.The cortex at ditch will be carried on the back simultaneously It all grinds and removes, be bound to cause loss, the broken increase of starch, decline rice milling yield, the increasing of rice machine section is broken to account for entire husk rice work Skill process always increases broken 60% or more.So the present invention retains suitable cortex according to national standards, not only to supply human body institute It needs nutritional ingredient advantageous, and the extracting rate of rice can be improved.It was verified that white rice processing selects the Mill technique of three machine pearlings It is relatively reasonable, no matter essence is ground polished rice or long-grained nonglutinous rice and can be adapted to, and three machine pearling techniques using sand roller device, two sand roller devices, The technique that three iron roll devices combine more can guarantee product quality, be particularly conducive to road rice polishes after improving effect and matter Amount.
It is polished in S4 step, removes rice surface dust, avoid dust in classification process from causing to block too much, together When also color selector is avoided maloperation occur, be conducive to raising and safeguarding for color selector.
And then the temperature of rice can be reduced using cool rice process, to reduce that Yin meter Wen is excessively high in the ways of escape processes such as polishing Cause the increase of broken rice rate.
The gloss that rice surface is promoted by second polishing carries out Accurate Classification to rice by secondary grading, then wraps Dress completes processing.
Preferably, in S2 step, the rough separation process of paddy includes:
S2a, the rough separation of first time paddy: separating mixture of paddy and husked rice using gravity type paddy separator, obtains top layer Net paddy, middle layer mixture of paddy and husked rice, undermost net rough, net paddy returns husking equipment and removes rice husk again;The rough mixing of paddy Object enters gravity type paddy separator or the second gravity type paddy separator is separated again;It is net rough into S3 step;
S2b, the rough separation of second of paddy: the mixture of paddy and husked rice generated to S2a step separates, and the paddy for obtaining upper layer is rough mixed The net rough of object and lower layer is closed, mixture of paddy and husked rice enters gravity type paddy separator or the second gravity type paddy separator is divided again From;It is net rough into S3 step.
The rough separation of paddy is to utilize the physical properties such as granularity, density, bulk density, coefficient of friction, the floating velocity of paddy and brown rice Difference, the automatic classification generated during the motion by mixture of paddy and husked rice, i.e. paddy floating brown rice sink, using suitable Paddy and brown rice are separated and are sorted by forms of motion and device.The rough separating technology of the paddy provided through the invention, mentions significantly High net rough yield, to further improve rice milling yield.
Preferably, after vibration removal grass knot is first passed through in S2 step, after husking, paddy removes rice by husking equipment Shell is obtained net rough by husked rice separator.
Grass knot is first removed, avoids containing grass knot in net paddy, influences subsequent operation.
Preferably, in the S3 step, by moisten rough storehouse to brown rice carry out spray damping moisten it is rough after, control temperature 10 DEG C with Under, successively brown rice is gently ground using sand roller device, two sand roller devices, three iron roll devices, removes brown rice peel layer;Moisten rough Time is in 10h or more, so that brown rice water content is 12-13%, spraying temperature is lower than room temperature.
It is rough to brown rice progress dampening profit, broken rice rate can be further decreased, moistens the rough time in 10h or more, compared in short-term Between moisten rough, moisten that the rough quality for making rice is uniform for a long time, avoid doing the negative effect for generating subsequent operation in exogenous damp.According to Rice variety and environmental factor have a duration difference, and the specific time is subject to the rice moisture content for reaching qualified.By repeatedly real Verifying, paddy water content can be reduced and be cracked rice 1 percentage point in 14.5-16%, and water content can be reduced in 13-14.5% It cracks rice 1-2 percentage points, water content can be reduced and be cracked rice 2-5 percentage points or more in 12-13%, therefore preferably brown rice is aqueous Amount can further decrease broken rice rate in 12-13%.
Preferably, in the S3 step, sand roller device, two sand roller devices, three iron roll devices are all made of spray wind rice machine.
Using spray wind rice machine, grain of rice temperature can be reduced in rice milling process, reduces quick-fried waist.
Preferably, when carrying out husk rice and polishing operation, chaff crushed rices mixture, then the method with screening are collected with air intake device Rice bran, rice crushed rices are separated.
This method not only improves the conveying and arrangement of rice bran, improves resource utilization, and advantageously reduce rice mill Interior pearling room temperature improves Mill technique effect.
Preferably, used in S9 step multi-deck screen by rice primary dcreening operation for whole rice, mixed with rice, crack rice, reuse color selector and/ Or mixed with rice is further sorted as whole rice and is cracked rice by length machine.
In such a way that multi-deck screen is in conjunction with color selector and/or length machine, can sharpness of separation be greatly improved.
Preferably, in the entire system, from top to bottom transported material when using from elephant trunk, using bucket when vertical-lift material The conveying of formula elevator, the collection and conveying of chaff crushed rices mixture use pneumatic conveying, and the rice transport before being packaged after classification uses skin Band conveying.
Be between each process in husk rice workshop conveyed by material it is interconnected.Workshop is platform-type, therefore material It is all to use from elephant trunk when conveying from top to bottom.It is conveyed when vertical-lift material using bucket elevator.But it is mixed for chaff crushed rices The collection and conveying of object are closed, pneumatic conveying should be used, not only can prevent dust from escaping, and reduce machine groundwork The temperature of component reduces material and supplies consumption conducive to the service life for extending main working parts, guarantees rice milling yield etc..Before packing Rice is conveyed using Belt Conveying, economical and practical.
Preferably, it before carrying out husk rice, polishing, second polishing step, adds concentration equipment and carries out magnetic separation.
In order to guarantee mechanical safety, magnetic separator is added before husk rice, polishing, second polishing to prevent screw, iron wire etc. It falls into mechanical and damages mechanical.
The present invention has the beneficial effect that:
(1) multistage combined using sand roller, two sand rollers, three iron rolls is light to grind, while the temperature of rice is controlled 10 DEG C hereinafter, not only guaranteed that rice smooth appearance was bright, but also nutritional ingredient is remained to greatest extent, keep the quality of raw grain;Meet The needs of high quality white rice market comsupton promote competitive power of product and brand recognition.
(2) by being improved to the rough separating technology of paddy, net roughness is further improved, to improve rice milling yield, is promoted Rice finished product quality.
(3) by rice temperature and water content in the control processing of multiple details, broken rice rate is reduced, rice matter is improved Amount.
(4) injury to rice is reduced by Reasonable Transportation material, and then ensure that the quality of rice.
(5) by reducing waste, improving the utilization rate of resource to cracking rice and rice bran, rice crushed rices separate.
Specific embodiment
Embodiment 1
A kind of low temperature process method for rice finished product, comprising the following steps:
S1, cleaning process: large, medium and small light miscellaneous, ferromagnetic metal impurity, sandstone, empty grain in removal paddy;
S2, husking and paddy is rough separates: paddy removes rice husk by husking equipment, removes grass knot by vibration, then passes through Husked rice separator obtains net rough;
The rough separation process of paddy includes:
S2a, the rough separation of first time paddy: separating mixture of paddy and husked rice using gravity type paddy separator, obtains top layer Net paddy, middle layer mixture of paddy and husked rice, undermost net rough, net paddy returns husking equipment and removes rice husk again;The rough mixing of paddy Object enters gravity type paddy separator or the second gravity type paddy separator is separated again;It is net rough into S3 step;
S2b, the rough separation of second of paddy: the mixture of paddy and husked rice generated to S2a step separates, and the paddy for obtaining upper layer is rough mixed The net rough of object and lower layer is closed, mixture of paddy and husked rice enters gravity type paddy separator or the second gravity type paddy separator is divided again From;It is net rough into S3 step.
S3, low-temperature rice whitening: it is rough to brown rice progress spray damping profit by moistening rough storehouse, moisten the rough time in 10h or more, so that rough Rice water content is 12-13%, and spraying temperature is lower than room temperature.
After carrying out magnetic separation by concentration equipment, temperature is controlled at 10 DEG C hereinafter, successively filling using sand roller device, two sand rollers It sets, three iron roll devices gently grind brown rice, removal brown rice peel layer;Sand roller device, two sand roller devices, three iron roll devices It is all made of spray wind rice machine.
S4, polishing: after carrying out magnetic separation by concentration equipment, the dust of rice surface is removed by polishing machine;
S5, cool rice: the temperature of rice is reduced using cooling device;
S6, classification: being classified rice, removes small brokens;
S7, color sorting: heterochromatic grain and chalk grain are removed by color selector;
S8, second polishing: after carrying out magnetic separation by concentration equipment, the brightness of rice is promoted by polishing machine;
S9, secondary grading: the rice after polishing is classified, use multi-deck screen by rice primary dcreening operation for whole rice, mixed with rice, It cracks rice, reuses color selector and/or length machine and mixed with rice is further sorted for whole rice and cracked rice;
S10, packing: rice finished product is packaged by ordinary packing or vacuum packaging or gas flush packaging.
Carrying out husk rice and when polishing operation, collecting chaff crushed rices mixture with air intake device, then with the method screened by rice bran, Rice crushed rices separation.
In the entire system, from top to bottom transported material when using from elephant trunk, when vertical-lift material, uses bucket lifting Machine conveying, the collection and conveying of chaff crushed rices mixture use pneumatic conveying, and the rice transport before being packaged after classification uses Belt Conveying.
With the method to a variety of rice processing produce as a trial, and to broken rice rate, rice rate record, to rice finished product Nutriment is sampled detection, and compared to common process rice method, the broken rice rate of the method reduces 7%-9%, obtains rice Rate increases 3%-6%, and rice smooth appearance is bright, and nutriment is abundant, reaches expected.
Above-described embodiment is merely exemplary for the purpose of the present invention, and and not restrictive, its object is to allow be familiar with this The understanding of technology cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.Not In the case where being detached from claim limited range, those of ordinary skill in the art understand, any modification, the change that can be made Change or equivalent, will fall within the scope of protection of the present invention.

Claims (9)

1. a kind of low temperature process method for rice finished product, it is characterised in that: the following steps are included:
S1, cleaning process: large, medium and small light miscellaneous, ferromagnetic metal impurity, sandstone, empty grain in removal paddy;
S2, husking and paddy is rough separates: the paddy removes rice husk by husking equipment, then is obtained only by husked rice separator It is rough;
S3, low-temperature rice whitening: control temperature is at 10 DEG C hereinafter, successively using sand roller device, two sand roller devices, three iron roll devices Brown rice is gently ground, brown rice peel layer is removed;
S4, polishing: the dust of rice surface is removed by polishing machine;
S5, cool rice: the temperature of rice is reduced using cooling device;
S6, classification: being classified rice, removes small brokens;
S7, color sorting: heterochromatic grain and chalk grain are removed by color selector;
S8, second polishing: the brightness of rice is promoted by polishing machine;
S9, secondary grading: the rice after polishing is classified, and collects whole rice respectively, cracking rice carries out separating utilization;
S10, packing: rice finished product is packaged by ordinary packing or vacuum packaging or gas flush packaging.
2. a kind of low temperature process method for rice finished product according to claim 1, it is characterised in that: in the S2 step In, the rough separation process of paddy includes:
S2a, the rough separation of first time paddy: mixture of paddy and husked rice is separated using gravity type paddy separator, obtains the net of top layer Paddy, middle layer mixture of paddy and husked rice, undermost net rough, the net paddy returns husking equipment and removes rice husk again;The paddy is rough Mixture enters gravity type paddy separator or the second gravity type paddy separator is separated again;It is described net rough into S3 step Suddenly;
S2b, the rough separation of second of paddy: the mixture of paddy and husked rice generated to the S2a step separates, and the paddy for obtaining upper layer is rough mixed The net rough of object and lower layer is closed, the mixture of paddy and husked rice enters gravity type paddy separator or the second gravity type paddy separator carries out again Separation;It is described net rough into the S3 step.
3. a kind of low temperature process method for rice finished product described in any one of -2 according to claim 1, it is characterised in that: In the S2 step, after vibration removal grass knot is first passed through after husking, the paddy removes rice husk by husking equipment, rough by paddy Separation equipment obtains net rough.
4. a kind of low temperature process method for rice finished product according to any one of claim 1-3, it is characterised in that: In the S3 step, by moisten rough storehouse to brown rice carry out spray damping moisten it is rough after, control temperature at 10 DEG C hereinafter, successively using sand Roller arrangement, two sand roller devices, three iron roll devices gently grind brown rice, remove brown rice peel layer;Moisten the rough time 10h with On, so that brown rice water content is 12-13%, the spraying temperature is lower than room temperature.
5. a kind of low temperature process method for rice finished product described in any one of -4 according to claim 1, it is characterised in that: In the S3 step, the sand roller device, two sand roller devices, three iron roll devices are all made of spray wind rice machine.
6. a kind of low temperature process method for rice finished product according to any one of claims 1-5, it is characterised in that: When carrying out husk rice and polishing operation, chaff crushed rices mixture is collected with air intake device, then rice bran, rice crushed rices is separated with the method for screening.
7. a kind of low temperature process method for rice finished product according to claim 1 to 6, it is characterised in that: institute State used in S9 step multi-deck screen by rice primary dcreening operation for whole rice, mixed with rice, crack rice, reusing color selector and/or length machine will mix Rice is closed further to sort as whole rice and crack rice.
8. a kind of low temperature process method for rice finished product described in any one of -7 according to claim 1, it is characterised in that: In whole system, from top to bottom when transported material using from elephant trunk, when vertical-lift material, is conveyed using bucket elevator, chaff crushed rices The collection and conveying of mixture use pneumatic conveying, and the rice transport before being packaged after classification uses Belt Conveying.
9. a kind of low temperature process method for rice finished product according to claim 1 to 8, it is characterised in that: Before carrying out the husk rice, polishing, second polishing step, adds concentration equipment and carry out magnetic separation.
CN201811299544.7A 2018-11-02 2018-11-02 A kind of low temperature process method for rice finished product Pending CN109126938A (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN109622113A (en) * 2019-01-28 2019-04-16 湖南新世米业有限公司 A kind of rice processing technique process
CN110152765A (en) * 2019-06-05 2019-08-23 安徽省舒城县青云精米加工有限责任公司 Big rice processing method
CN111185256A (en) * 2019-10-30 2020-05-22 靖州县振宏米业有限责任公司 Production and processing method of high-quality graded rice
CN111282622A (en) * 2020-02-28 2020-06-16 武汉轻工大学 Grading processing technology of long-grain rice semi-finished product and long-grain rice processing technology
CN111282621A (en) * 2020-02-28 2020-06-16 武汉轻工大学 Grading processing method of long-grain rice semi-finished product and long-grain rice processing method
CN111701636A (en) * 2020-06-11 2020-09-25 安庆常润米业股份有限公司 Processing method of low-temperature-rise rice
CN111701637A (en) * 2020-06-11 2020-09-25 安庆常润米业股份有限公司 Refined rice processing method
CN112892647A (en) * 2019-11-19 2021-06-04 衡阳县湖穗农业有限公司 Processing method of nutritional rice
CN113694987A (en) * 2021-08-05 2021-11-26 山西百禾元农业科技有限公司 Millet processing method

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Publication number Priority date Publication date Assignee Title
CN109622113A (en) * 2019-01-28 2019-04-16 湖南新世米业有限公司 A kind of rice processing technique process
CN110152765A (en) * 2019-06-05 2019-08-23 安徽省舒城县青云精米加工有限责任公司 Big rice processing method
CN110152765B (en) * 2019-06-05 2021-07-09 安徽省舒城县青云精米加工有限责任公司 Rice processing method
CN111185256A (en) * 2019-10-30 2020-05-22 靖州县振宏米业有限责任公司 Production and processing method of high-quality graded rice
CN111185256B (en) * 2019-10-30 2021-07-06 靖州县振宏米业有限责任公司 Production and processing method of high-quality graded rice
CN112892647A (en) * 2019-11-19 2021-06-04 衡阳县湖穗农业有限公司 Processing method of nutritional rice
CN111282622A (en) * 2020-02-28 2020-06-16 武汉轻工大学 Grading processing technology of long-grain rice semi-finished product and long-grain rice processing technology
CN111282621A (en) * 2020-02-28 2020-06-16 武汉轻工大学 Grading processing method of long-grain rice semi-finished product and long-grain rice processing method
CN111282621B (en) * 2020-02-28 2021-10-22 武汉轻工大学 Grading processing method of long-grain rice semi-finished product and long-grain rice processing method
CN111701636A (en) * 2020-06-11 2020-09-25 安庆常润米业股份有限公司 Processing method of low-temperature-rise rice
CN111701637A (en) * 2020-06-11 2020-09-25 安庆常润米业股份有限公司 Refined rice processing method
CN113694987A (en) * 2021-08-05 2021-11-26 山西百禾元农业科技有限公司 Millet processing method

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Application publication date: 20190104