CN105149035A - Long-shaped rice processing method and system - Google Patents
Long-shaped rice processing method and system Download PDFInfo
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- CN105149035A CN105149035A CN201510399954.9A CN201510399954A CN105149035A CN 105149035 A CN105149035 A CN 105149035A CN 201510399954 A CN201510399954 A CN 201510399954A CN 105149035 A CN105149035 A CN 105149035A
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Abstract
The invention discloses a long-shaped rice processing method and system. The processing method comprises the steps of cleaning, stone removal, husking and rice husk separation, roughness improvement, multistage rice milling, multistage polishing, multistage color sorting and the like; in addition, the steps including buffering through a buffering bin and magnetic separation are conducted before the main steps. By means of the long-shaped rice processing method and system, the appearance, color and taste of rice obtained through processing are all improved greatly, the product quality is improved, the broken rice rate is reduced, and the milled rice rate is increased.
Description
Technical field
Grain processing of the present invention, particularly relates to a kind of long-grained nonglutinous rice processing method and system of processing.
Background technology
Paddy is the topmost grain variety of China, and its output accounts for about 40% of whole total output of grain, and rice to be paddy form through shelling stone roller system." bread is the staff of life ", the staple food on our dining table is not only by rice, is also the raw material of food industry.Rice is a flourishing long time product, is that population and the area of staple food constantly expands with rice.The domestic rice propensity to consume is along with the improve of living standards of the people, increasing to high quality white rice demand.Along with the increase of population, and paddy cultivated area increases slowly, and following domestic rice market demand is increasing, and day is becoming tight.
According to statistics in recent years, no matter be the quantity from processing enterprise, or the output of the personnel of processing and processing has had obvious growth, from the enterprise development situation of rice processing, there is greatly the imposing manner of catching up from behind in private enterprise, quantity cumulative year after year.From the output of rice processing in recent years, growth is surprising, increases about 5,000,000 tons about compared with last year every year, from the processing situation of each province, has had and increased significantly, promotes the steady development of China's economy.
At present in rice production enterprise, the production model of what large enterprise generally adopted is two production line or multiple production line, can complete the processing of different quality different brackets rice simultaneously.Then cannot realize this goal at medium-sized and small enterprises, mainly single line is produced, only to process a kind of quality rice.
In processing technology, although also there are many enterprises to adopt multiple tracks to grind processing procedure sequence in process, in the machine of rice mill, pressure reduces, light fine ground mill, endosperm impaired little, crack rice few, rice milling yield is improved, reduces rough white irregularity.Also polishing has been carried out to rice, the floating chaff of rice surface has been removed, increases the luminosity of the grain of rice, increase the fresh-keeping time.But the requirement that its rice whitening and polishing and look select also is not enough to reach the optimum level of rice processing quality.Current enterprise refines rice and generally adopts 2-3 level stone roll to carry out pearling with the manufacturing procedure of outlet rice, 2 grades of polishings, and one-level look selects; Adopt the pearling of 1-2 level stone during processing mark one meter (general rice), the polishing of 1-2 level, the choosing of one-level look or colourless choosing, its technological process is as follows:
Raw grain → cleaning → de-stone → magnetic separation → rice huller paddy+rough separation of rice husk separation → paddy → multistage pearling → rice grading → join rice → 1-2 level polishing → one-level look choosing → rice grading → length grading → packaging → finished bin.But Miyi is broken in rice processing method process of the prior art, and rice milling yield is low, and go out the inferior shortcoming of rice.
Summary of the invention
The present invention is intended to the deficiency for long-grained nonglutinous rice processing method of the prior art, provides a kind of long-grained nonglutinous rice processing method, prepares rice rice milling yield high by this processing method.
Present invention also offers a kind of long-grained nonglutinous rice system of processing, by this system, paddy is processed, there is rice milling yield high, and go out the high advantage of meter Pin Zhi.
Milled machining method of the present invention, includes the following steps: raw grain to the early qing dynasty, clean up - in addition to the barnyard grass - to stone - magnetic separation - surge bin buffer - husking rice husk and separation - surge bin cushion - paddy separation - surge bin - run rough - magnetic separation to buffer buffer storehouse, roll away the first level sand rough grinding white - magnetic separation - surge bin buffer to 2 white sand roller grinding, magnetic separation to buffer buffer storehouse, the third grade white sand roller grinding to buffer buffer storehouse, rice grading - magnetic separation - surge bin buffer to 4 white sand roller grinding, magnetic separation to buffer buffer storehouse, the fifth white sand roller grinding to buffer buffer storehouse, rice grading to buffer buffer storehouse, sorting machine selection - cool m - m equipment of m - magnetic separation - surge bin buffer to the first-level polishing, magnetic separation - surge bin buffer - 1 color - magnetic separation - surge bin buffer - the second polishing - magnetic separation - surge bin buffer - 2 color to surge bin buffer to rice classification, magnetic separation, surge bin buffer - the third polishing - magnetic separation - surge bin buffer - the third color - magnetic separation - surge bin cushion - 4 polishing - surge bin - > rice grading to buffer buffer storehouse, sorting machine selection - magnetic separation - packing.
Optionally, be also provided with electronic measurement step between the magnetic separation after step de-stone and de-stone, by electronic measurement, the weight of the paddy after de-stone can be measured, thus better can control the operation of other step and calculate finished product rice milling yield.
Optionally, make biodiversity percentage composition in brown rice between 14 ~ 16% by profit is rough in the rough step of described profit, be preferably 15%, to reduce the amount of cracking rice greatly.
Optionally, the described just clear cylindrical pre-cleaning screen that adopts removes the large impurity of the diameter in paddy at more than 5.0mm.
Optionally, described cleaning is light assorted for adopting vibrating cleaning sieve or rotary flat sieve to remove, below diameter 5.0mm little assorted and just clear in remaining large assorted.
Optionally, the described barnyard grass employing vibration at high speed that removes screens out barnyard grass.
Optionally, the rough separation of described paddy comprises use gravity type paddy separator separating step successively, and surge bunker buffer step and use plansifter for paddy separation are except rough step.
Present invention also offers a kind of long-grained nonglutinous rice system of processing, comprise the following main device be disposed adjacent successively: receiving sieve → cleaning sieve → except barnyard grass sieve → stone remover → hulling machine → grain separating machine → plansifter for paddy separation → moisten rough device → the first abrasive type rice whitening machine → the second abrasive type rice whitening machine → the 3rd abrasive type rice whitening machine → the first white rice grader → the 4th abrasive type rice whitening machine → the 5th abrasive type rice whitening machine → the second white rice grader → the first refiner → Liang meter Cang → join meter device → the first polishing machine → the first color selector → the second polishing machine → the second color selector → the 3rd white rice grader → the 3rd polishing machine → the 3rd color selector → the 4th polishing machine → a 4th white rice grader → the second refiner → packing device;
Surge bunker is provided with above each main device, surge bunker outlet above each main device is all connected with the entrance of the main device below it, elevator is provided with between adjacent two main devices, the rice output outlet of the upper main device that the entrance of elevator is adjacent connects, and the outlet of elevator is connected with the surge bunker above the main device of the next one;
Between the surge bunker of described second abrasive type rice whitening machine, the 3rd abrasive type rice whitening machine, the 4th abrasive type rice whitening machine, the 5th abrasive type rice whitening machine, the second white rice grader, the 3rd white rice grader, the 3rd white rice grader, the second polishing machine, the 3rd polishing machine, the 4th polishing machine, the second color selector and the 3rd color selector and separately top, or be provided with threeway between the surge bunker separately and the elevator of surge bunker upstream, one of them outlet of described threeway is connected with the elevator in its downstream;
Magnetic separator is provided with between each surge bunker above described hulling machine, the first abrasive type rice whitening machine, the second abrasive type rice whitening machine, the 3rd abrasive type rice whitening machine, the 4th abrasive type rice whitening machine, the 5th abrasive type rice whitening machine, the first polishing machine, the second polishing machine, the 3rd polishing machine, the first color selector, the second color selector and the 3rd color selector and the elevator of each surge bunker upstream.
Optionally, the rough device of described profit comprises spraying machine and is arranged at clean rough storehouse below spraying machine, the entrance of described spraying machine is connected with the lift outlet of its upstream, the entrance in described clean rough storehouse is connected by threeway with between spraying machine, and the outlet in described clean rough storehouse is connected with the elevator of the first abrasive type rice whitening machine upstream.
Optionally, also flow scale is provided with between stone remover and hulling machine, the entrance of described flow scale is connected by threeway with the elevator of upstream, the below of flow scale is provided with lower surge bunker, the outlet of flow scale is connected with the lower surge bunker entrance below it, the outlet of described lower surge bunker is connected with the elevator entrance in its downstream, owing to being provided with flow scale, can measure the paddy after de-stone.
The pearling of Pyatyi sand roller is have employed in long-grained nonglutinous rice processing method of the present invention, level Four polishing, three grades of look choosings, level Four rice grading, make to prepare and the rice that obtains has the high advantage of quality, in addition owing to adopting the pearling of sand roller, with adopt compared with stone roll pearling in prior art, overcome stone roll pearling rice mill pressure larger, very easily produce in the process of pearling and crack rice, thus reduce the problem of the rice milling yield of product, by the pearling of sand roller, in abrasive type rice whitening machine, pressure is less, not easily produce and crack rice, crack rice by moistening rough also further decreasing, thus improve rice milling yield, in addition, in rice huller paddy, abrasive type rice whitening machine, polishing machine, magnetic separation step is all provided with before color selector, magnetisable material can be removed by magnetic separation and prevent injury device, due in the rough separation of paddy, moisten rough, the pearling of sand roller, rice grading, surge bunker buffer step is added before the steps such as polishing and look choosing, can guarantee that material feeding is even, thus use rice there is higher quality.
Long-grained nonglutinous rice system of processing of the present invention is owing to adopting abrasive type rice whitening machine pearling, with adopt compared with the pearling of stone roll rice mill in prior art, overcome stone roll pearling rice mill pressure larger, very easily produce in the process of pearling and crack rice, thus reduce the problem of the rice milling yield of product, by the pearling of sand roller, in abrasive type rice whitening machine, pressure is less, not easily produce and crack rice, crack rice by moistening rough also further the decreasing of rough machine profit, thus improve rice milling yield, in addition, in rice huller paddy, abrasive type rice whitening machine, polishing machine, all magnetic separator is provided with before color selector, magnetisable material can be removed by magnetic separation and prevent injury device, due in the rough separation of paddy, moisten rough, the pearling of sand roller, rice grading, surge bunker is added before the steps such as polishing and look choosing, can guarantee that material feeding is even, thus use rice there is higher quality, be provided with multiple threeway in the entire system in addition, the procedure of processing of long-grained nonglutinous rice can be selected flexibly by threeway, technique is applied in a flexible way, be suitable for all kinds of rice processing request.
Accompanying drawing explanation
The structural representation that Fig. 1-1,1-2,1-3,1-4 head and the tail couple together as long-grained nonglutinous rice system of processing of the present invention.
In figure, mark is illustrated as: 1-receiving sieve; 101-first white rice grader; 102-second white rice grader; 103-the 3rd white rice grader; 104-the 4th white rice grader; 2-clears up sieve; 201-first refiner; 202-second refiner; 3-is except barnyard grass sieve; 301-first polishing machine; 302-second polishing machine; 303-the 3rd polishing machine; 304-the 4th polishing machine; 4-stone remover; 401-first color selector; 402-second color selector; 403-the 3rd color selector; 5-hulling machine; 6-grain separating machine; 7-plansifter for paddy separation; 8-flow scale; 901-first abrasive type rice whitening machine; 902-second abrasive type rice whitening machine; 903-the 3rd abrasive type rice whitening machine; 904-the 4th abrasive type rice whitening machine; 905-the 5th abrasive type rice whitening machine; The cool rice storehouse of 10-; 11-joins a meter device; 12-packing device; 13-surge bunker; 14-elevator; 15-threeway; 16-magnetic separator; 171-first time grain hole; 172-second time grain hole; 173-the 3rd time grain hole; 18-spraying machine; The clean rough storehouse of 19-; 20-finished bin; 21-impurity storage tank.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, technical scheme of the present invention is further elaborated.
Embodiment 1
In this example of milled processing methods, including the following steps: raw grain to the early qing dynasty, clean up - in addition to the barnyard grass - to stone - magnetic separation - surge bin buffer - husking rice husk and separation - surge bin cushion - paddy separation - surge bin - run rough - magnetic separation to buffer buffer storehouse, roll away the first level sand rough grinding white - magnetic separation - surge bin buffer to 2 white sand roller grinding, magnetic separation to buffer buffer storehouse, the third grade white sand roller grinding to buffer buffer storehouse, rice grading - magnetic separation - surge bin buffer to 4 white sand roller grinding, magnetic separation to buffer buffer storehouse, the fifth white sand roller grinding to buffer buffer storehouse, rice grading to buffer buffer storehouse, sorting machine selection - cool m - m equipment of m - magnetic separation - surge bin buffer to the first-level polishing, magnetic separation - surge bin buffer - 1 color - magnetic separation - surge bin buffer - the second polishing - magnetic separation - surge bin buffer - 2 color to surge bin buffer to rice classification, magnetic separation, surge bin buffer - the third polishing - magnetic separation - surge bin buffer - the third color - magnetic separation - surge bin cushion - 4 polishing - surge bin - > rice grading to buffer buffer storehouse, sorting machine selection - magnetic separation - packing.
In the present embodiment, optionally, be also provided with electronic measurement step between magnetic separation after step de-stone and de-stone, by electronic measurement, the weight of the paddy after de-stone can be measured, thus better can control the operation of other step and calculate rice milling yield.
In the present embodiment, optionally, make biodiversity percentage composition in brown rice between 14 ~ 16% by profit is rough in the rough step of described profit, be preferably 15%, to reduce the amount of cracking rice greatly.
In the present embodiment, optionally, the described just clear cylindrical pre-cleaning screen that adopts removes the large impurity of the diameter in paddy at more than 5.0mm.
In the present embodiment, optionally, described cleaning is light assorted for adopting vibrating cleaning sieve or rotary flat sieve to remove, below diameter 5.0mm little assorted and just clear in remaining large assorted.
In the present embodiment, optionally, the described barnyard grass employing vibration at high speed that removes screens out barnyard grass.
In the present embodiment, optionally, the rough separation of described paddy comprises use gravity type paddy separator separating step successively, surge bunker buffer step and use plansifter for paddy separation are except rough step.
After testing, by the rice that the long-grained nonglutinous rice processing method of the present embodiment is processed, rice milling yield can reach more than 60%, and the production technology rice milling yield of production same level quality is generally 54% at present, so long-grained nonglutinous rice processing method of the present invention processing long-grained nonglutinous rice has the high advantage of rice milling yield.
Embodiment 2
Present embodiments provide a kind of long-grained nonglutinous rice system of processing, comprise the following main device be disposed adjacent successively: receiving sieve 1 → vibratory sieve 2 → except rough device → the first abrasive type rice whitening machine 901 → the second abrasive type rice whitening machine the 902 → three abrasive type rice whitening machine 903 → the first white rice grader the 101 → four abrasive type rice whitening machine the 904 → five abrasive type rice whitening machine 905 → the second white rice grader 102 → the first refiner of barnyard grass sieve 3 → stone remover 4 → hulling machine 5 → grain separating machine 6 → plansifter for paddy separation 7 → moisten 201 → cool rice storehouse 10 → join meter device 11 → the first polishing machine 301 → the first color selector 401 → the second polishing machine 302 → the second color selector the 402 → three white rice grader the 104 → three polishing machine the 303 → three color selector 403 → 13-the 4th polishing machine the 304 → four white rice grader 105 → the second refiner 202 → packing device 12;
Surge bunker 13 is provided with above each main device, surge bunker 13 above each main device exports and is all connected with the entrance of the main device below it, elevator 14 is provided with between adjacent two main devices, the rice output outlet of the upper main device that the entrance of elevator 14 is adjacent connects, and the outlet of elevator 14 is connected with the surge bunker 13 above the main device of the next one;
Described second abrasive type rice whitening machine 902, 3rd abrasive type rice whitening machine 903, 4th abrasive type rice whitening machine 905, 5th abrasive type rice whitening machine 905, second white rice grader 102, 3rd white rice grader 103, 4th white rice grader 104, second polishing machine 302, 3rd polishing machine 303, 4th polishing machine 304, between the surge bunker 13 of the second color selector 402 and the 3rd color selector 403 and respective top, or be provided with threeway 15 between the surge bunker 13 separately and the elevator 14 of surge bunker 13 upstream, one of them outlet of described threeway 15 is connected with the elevator 14 in its downstream,
Magnetic separator 16 is provided with between each surge bunker 13 above described hulling machine 5, first abrasive type rice whitening machine 901, second abrasive type rice whitening machine 902, the 3rd abrasive type rice whitening machine 903, the 4th abrasive type rice whitening machine 904, the 5th abrasive type rice whitening machine 905, first polishing machine 301, second polishing machine 302, the 3rd polishing machine 303, first color selector 401, second color selector 402 and the 3rd color selector 403 and the elevator 14 of each surge bunker 13 upstream.
In the present embodiment, optionally, the rough device of described profit comprises spraying machine 18 and is arranged at clean rough storehouse 19 below spraying machine 18, the entrance of described spraying machine 18 exports with the elevator 14 of its upstream and is connected, the entrance in described clean rough storehouse 19 is connected by threeway with between spraying machine 18, and the outlet in described clean rough storehouse 19 is connected with the elevator 14 of the first abrasive type rice whitening machine 901 upstream.
Optionally, flow scale 8 is also provided with between stone remover 4 and hulling machine 5, the entrance of described flow scale 8 is connected by threeway 15 with the elevator 14 of upstream, the below of flow scale 8 is provided with lower surge bunker 13, the outlet of flow scale 8 is connected with lower surge bunker 13 entrance below it, the outlet of described lower surge bunker 13 is connected with elevator 14 entrance in its downstream, owing to being provided with flow scale 8, can measure the paddy after de-stone.
In the present embodiment, preferably, in receiving sieve 1, cleaning sieve 2, except barnyard grass sieve 3, stone remover 4, hulling machine 5, grain separating machine 6, plansifter for paddy separation 7, moisten rough device, first abrasive type rice whitening machine 901, second abrasive type rice whitening machine 902, 3rd abrasive type rice whitening machine 903, first white rice grader 101, 4th abrasive type rice whitening machine 904, 5th abrasive type rice whitening machine 905, second white rice grader 102, first refiner 201, cool rice storehouse 10, join meter device 11, first polishing machine 301, first color selector 401, second polishing machine 302, second color selector 402, 3rd white rice grader 103, 3rd polishing machine 303, 3rd color selector 403, 4th polishing machine 304, 4th white rice grader 104, the air outlet of the second refiner 202 and the air outlet of each elevator 14, the air outlet of each surge bunker 13 is connected to Geldart-D particle spiral dust catcher (not shown) respectively by pipeline, the port of export of described Geldart-D particle spiral dust catcher is connected with pulse dust collector (not shown) and rice husk precipitation apparatus (not shown) in turn, the impurity such as the rice husk that each equipment can be produced by Geldart-D particle spiral dust catcher by setting like this are recovered in rice husk precipitation apparatus, in rice husk precipitation apparatus, rice husk sedimentation is collected, ensure long-grained nonglutinous rice processing environment air quality, avoid contaminated environment.
In addition, preferably, be respectively arranged with impurity storage tank 21 at the isolated impurities outlet of each device, to collect isolated impurity, avoid contaminated environment.
Second time grain hole 172 is also preferably provided with in the below of grain separating machine 6, for depositing the brown rice of investigation mission outside the city or town, second time grain hole 172 is connected with the charging aperture of the elevator 14 of grain separating machine 6 upstream, the brown rice in second time grain hole 172 is risen in grain separating machine 6, follow-up process is carried out with the brown rice realized transfering to other localities, the 3rd time grain hole 173 is preferably also provided with in the below of joining meter device 11, for storing investigation mission outside the city or town rice, elevator is set in the 3rd time grain hole 173, carries out joining rice the investigation mission outside the city or town rice in the 3rd time grain hole 173 is risen to join in meter device 11.
Below each device in the present embodiment and detailed process are illustrated:
A, according to paddy and brown rice production process property, before equipment hulling machine 5, material is mainly paddy, all adopts common elevator, and after hulling machine 5, material is brown rice and rice, all adopts slow hoister, avoids the grain of rice because of damaged in lifting process.
B, storehouse, cool rice storehouse 10 cylinder cross section are generally square, and general 2.25 ~ 3.5 meters of the length of side (sometimes fixed according to physical condition), storehouse inner wall surface is smooth, can add and do nonpoisonous anti-corrosive paint.Do funneling at the bottom of storehouse, the point end and horizontal plane angle are not less than 60 degree, are convenient to rice flowing.Producing automatic classification when delivering from godown to prevent rice, causing quality uneven, at the bottom of the storehouse larger to storehouse cylinder cross-sectional area, adopt multiple exit form, generally adopt 2 ~ 6 outlets, material in storehouse can be avoided to there is dead angle simultaneously, guarantee to accomplish material first in first out.
Vertical ground direction in storehouse, insert the stainless steel tube that 4 ~ 8 pipe upper punches have tiny holes, aperture can not drop out with the grain of rice and be as the criterion.This pipe is mainly used in the ventilation and heat of the inner rice in storehouse, and be connected with independently blower fan, blower fan one end is provided with air register, according to rice surface temperature and water regime adjustment air quantity, can reach the effect of cool-down dehumidification.The cool rice time is generally 12 hours, makes rice temperature reduce to room temperature, reaches best husk rice temperature.
In the surrounding in storehouse, be equipped with observation window every the height of 1 meter, observation window adopts food-grade safety glass to be arranged on the opening part in storehouse, and the size of observation window is generally 200*200mm.
Before C, main process apparatus, each surge bunker 13 mainly plays buffering material, guarantees that mass flow enters into down in one equipment uniformly, and the material avoiding entering down one equipment is too much or very few, phenomenon even without material occurs, thus affects the normal operation of equipment and good processing technology.The size of surge bunker 13 is fixed according to output, as the surge bunker of available 1 ton of size of daily output rice 100 tons of rice processing techniques.
D, before the equipment of High Rotation Speed, be provided with magnetic separator 16, before hulling machine 5, each abrasive type rice whitening machine, each polishing machine.Because each color selector belongs to optoelectronic device, for avoiding irony impurity damage equipment, magnetic plant can be established before him.The object of magnetic plant removes irony impurity contained in paddy, rice, avoids irony impurity damage, damage equipment, even the flashing because of collision friction, cause dust explosion accident, affect processing technology and the production of equipment.Magnetic separator 16 can be adopted to carry out the separation of magnetic impurity.
F, to it should be noted that, abrasive type rice whitening machine belongs to the equipment of High Rotation Speed, necessary safety opening terminal: before start, foreign matter (as screw, nut, iron block etc.) in feed hopper and whitening chamber must be cleaned out, checkout facility is interior with or without affecting the material of start or affecting other foreign matters of equipment simultaneously, the most handy hand fluctuation spindle drive wheel, do not have the phenomenon blocked, if any then getting rid of.During start, normal Deng equipment open drive, charging processing again, when adjust flux and precision, notice that the living load control that can not overload is closed ammeter, the ram weight on pressure door should adjust according to the precision of raw material variety and needs, or the ram changing Different Weight is (when just having started meter, as too fast in ram adjustment, be easy to cause whitening chamber to block).If when midway production leading portion material does not catch up with, should feed gate be closed, slowly open feed gate again after waiting material abundance, not produce when whitening chamber underfill material.Produce complete, first should close entrance gate, after rerunning 1min, after the rice stone roller of whitening chamber, after material all clears out, then close power.
Should according to the parameter such as import and export gate, rice cutter, rice huller screen, suction air volume size of machining accuracy, raw material condition, output size adjustment rice machine in production process.
In whole technological process, should note following some:
1, before receiving sieve 1, be preferably provided with lower grain hole 171, raw grain is first poured in lower grain hole 171, then in the surge bunker 13 risen to above receiving sieve 1 through elevator 14, raw grain is when lower grain cheats 171, because dust is larger, for avoiding, on personnel's actual bodily harm and the impact on environment, should suction air volume being strengthened, avoid raising outside dust.Suction air volume is generally at 1000 ~ 2000m
3/ h.Paddy lifting means adopts common elevator, can according to concrete Yield selection model.
2, receiving sieve 1: the large impurity in paddy is removed in receiving sieve 1 just clear object, as stalk, weeds, cloth waste, the rope made of hemp, larger stone, soil block etc., if do not cleared up, can block following apparatus.Now many grain processing enterprises, for scheming conveniently, the grain that just purchase is returned, direct blanking is produced, and therefore, contained impurity is more.This procedure can adopt cylindrical pre-cleaning screen, general employing sieve diameter 13.0 ~ 20.0mm screen.(note: large mixing generally refers to the impurity being deposited in more than diameter 5.0mm sieve aperture.Impurity refers to by diameter 5.0mm sieve aperture, the impurity remaining in more than diameter 2.00mm sieve aperture shoulder to shoulder.Small impurities refers to the screenings by diameter 2.0mm sieve aperture.) exit material is substantially containing large assorted paddy, barnyard grass, light little material that is assorted and material shoulder to shoulder.
3, clear up sieve 2: the effect of cleaning sieve 2 is cleared up further material, mainly removing is light assorted and little assorted and partly large assorted.Cleaning sieve 2 generally adopts vibrating cleaning sieve or rotary flat sieve.When adopting vibrating cleaning sieve, according to raw material condition, different screen sizes can be selected.Raw grain is containing assorted more, and upper strata compass screen surface is optional selects circular hole compass screen surface, sieve diameter 5.0 ~ 10mm, with prevent sieve thoroughly or the bed of material blocked up and affect screen technique, main remove large assorted.Second layer compass screen surface sieve diameter 2.0 ~ 5.0mm, circular hole, strip hole, delthyrium, main removing is little assorted.Screen angle 6 °, angle of throw 20 °, screenings is little assorted.At material outlet place, be furnished with vertical air suction road, remove gently mixing in material.The common elevator of lifting means.Exit material is the material containing paddy, barnyard grass and impurity shoulder to shoulder.
4, except barnyard grass sieve 3: except large grain barnyard grass is removed in barnyard grass sieve 3 effect, exit material is the material containing paddy and impurity shoulder to shoulder.
5, stone remover 4: stone remover 4 is mainly used in removing the impurity such as stone shoulder to shoulder.Adopt suction, pressure-type dry stoner.10 °, de-stone working face inclination angle is 1.2 ~ 1.3m/s by the mean wind speed of crimped wire woven mess after stone remover 4.Adopt suction specific-gravity stoner, suction air volume is fixed according to output, and crimped wire woven mess adopts one side protruding fish scale orifice plate compass screen surface.The stone cleaned out directly is packed.The common elevator of lifting means, exit material is containing paddy.
Should more than 0.6% containing assorted total amount by the paddy after stone remover, wherein should more than 1/kg containing sandstone, should more than 130/kg containing barnyard grass.
6, flow scale 8: be provided with a paddy flow scale 8 after stone remover 4, mainly measure the amount of paddy, provides safeguard for calculating labour's account cost and calculates rice milling yield.
7, hulling machine: object makes paddy husking, and brown rice, paddy and husk are carried out husk by selection by winnowing be separated.Require: paddy husking rate, more than 80%, in rice husk separation process, is no more than 30/kg containing full grain grain in rice husk, is no more than 0.8% in mixture of paddy and husked rice containing rice husk amount.
General employing gas hold-down roller hulling machine, this equipment yield is high, and energy consumption is low, and noise is low, and roll-in regulates accurately, is convenient to automatic control, and drum structure is simple, the features such as easy accessibility.Paddy is through feed arrangement, rice huller paddy working face is entered into individual layer grain material form, make paddy side by working face (two rubber rolls of two different motion speed, being referred to as speed roller or fixed and moving roller, is the working face that rubber is made) extruding, rub the effect of tearing with the hands and slough rice husk (be also referred to as extruding rub with the hands avulsion shell).There is larger difference according to the floating velocity of rice husk and paddy, brown rice, therefore by pneumatic concentration, rice husk can be separated from thing rice huller.In addition, the density unit weight, coefficient of friction etc. of rice husk and paddy, brown rice also have larger difference, first can make the automatic classification that produce under rice huller are raw good, and then match with pneumatic concentration, are more conducive to improving effect that selection by winnowing is separated and reduce energy consumption.It is better that the outer air distribution source of general employing suction is separated rice husk effect, makes device interior be in negative pressure state, thus avoid outside equipment dust and raise.Directly hulling machine discharge port end have be separated for husk drop down plate, air register and aspiration channel, under making rice huller, thing produces automatic classification through dropping down plate, by air register regulating air volume, is sucked away in aspiration channel, has reached the effect that husk is separated.
8, grain separating machine 6 and plansifter for paddy separation 7: require that brown rice rice containing amount is no more than 30/kg, returns rice huller paddy and is no more than 10% containing rough amount, return the machine material flow and be less than 40% with the ratio of clean rough flow.
The rough separation of paddy mainly adopts gravitational separation process, i.e. gravity type paddy separator, utilize paddy and brown rice in the difference of the physical characteristic such as proportion, skin-friction coefficient, coarse work face of reciprocating vibration is done by inclined in two-way, mixture of paddy and husked rice is made to produce automatic classification, paddy " floating ", and brown rice " sinking ", brown rice is under the promotion of coarse work face boss, and upward moving is discharged from the top of working face.Paddy then moves down under the effect of self gravitation and charging thrust, is discharged, thus realize the rough separation of paddy by lower outlet.
Plansifter for paddy separation 7 utilizes paddy and brown rice in the difference of granularity, proportion, unit weight and the physical characteristic such as surface roughness and skin-friction coefficient, mixture of paddy and husked rice is made to produce automatic classification on the compass screen surface doing plane rotation motion, great efforts, little, the shaggy paddy of proportion float on material upper strata, and granularity is little, be sunken to bottom than great, that surface is more smooth brown rice.Brown rice contacts with compass screen surface and passes sieve aperture, becomes screenings, paddy intercept by brown rice layer, and cannot to contact with compass screen surface, not easily through sieve aperture, become oversize, thus realize the rough separation of paddy.
In this operation, gravity type paddy separator is used for the separation of main body mixture of paddy and husked rice, and plansifter for paddy separation 7 isolates back the multiple sieve of the mixture of paddy and husked rice of the machine for gravity type paddy separator, and object improves separating effect.Due to the separation that gravity type paddy separator is main body mixture of paddy and husked rice, when equipment debugging, clean rough mouth and paddy mouth can be turned down, guarantee only rough quality, reduce containing rough amount in paddy, thus avoid the secondary rice huller paddy of brown rice.
9, rough device is moistened: peeling degree weighs the Main Basis of rice processing accuracy.Because brown rice peel layer is combined very tight with endosperm, cortexes all for brown rice all to be ground more difficult, the brown rice that particularly some moistures are very low, storage time is long, reach higher machining accuracy and can produce a lot of cracking rice, have a strong impact on the economic benefit of processing enterprise and the Appropriate application of paddy resource, therefore, profit to be carried out to brown rice rough.Brown rice when the best enters to grind moisture, rough go out white rate the highest, go out broken rate minimum, power consumption is economized most, and product quality is best.The optimum moisture of general long-grained nonglutinous rice pearling is 15%, the therefore size of rate of water added, be foundation according to the gap of optimum moisture and the original moisture of brown rice.If the moisture of the brown rice after shelling is close to optimum moisture, only need add the water of about 0.3%, object makes cortex moistening, and supplement the moisture loss in pearling process.Can spraying machine be adopted, ensure the uniformity of water.Moisten and roughly to carry out in clean rough storehouse, the general cold water that adopts is modified, moistens 1 hour rough time.
10, the first abrasive type rice whitening machine 901: because brown rice surface is comparatively hard, therefore adopts to grind and cuts the pearling mode that pearling is master, open rough pearling with sand roller rice machine to brown rice.During work, by the finished clean brown rice of Qian Dao workshop section, enter in rice mill whitening chamber from feed hopper, along with the rotation of sand roller, brown rice advances along sand roller perficial helical, and the abrasive action by High Rotation Speed sand roller obtains pearling, finally by the helicla flute on sand roller, the grain of rice is pushed to exit, flows out from discharging gate.Meanwhile, under strong suction wind action, force chaff powder to depart from the grain of rice, discharge sieve aperture, finally by suction chaff systematic collection rice bran.
11, second and third, four, five abrasive type rice whitening machines: rice needs to grind processing procedure sequence through multiple tracks, and in the machine of rice mill, pressure is little, light fine ground mill, endosperm impaired little, crack rice few, then rice milling yield improves, and reduces rough white irregularity.Because the structural strength of long-grained nonglutinous rice is poor compared with the polished rice in northeast, therefore, in the process of rice whitening, three grades, the mode of level Four or the pearling of Pyatyi sand roller rice machine can be adopted, generally adopt level Four, the pearling of Pyatyi sand roller.Multistage light stone roller, reduces whitening pressure, thus can reduce and broken rate, improves the rice milling yield of finished product.After per pass sand roller rice machine, threeway is installed, is convenient to the flexible operating of technique, namely according to processing situation and the quality requirements of raw material, the technological process that suitable selection is different.Before per pass rice machine, be equipped with concentration equipment, avoid magnetisable material damage equipment.
12, white rice grader: each white rice grader is preferably flat turn sieve, after the 3rd abrasive type rice whitening machine 903 and the 5th abrasive type rice whitening machine 905, places white rice grader respectively.First white rice grader 101, is mainly used in extracting that first three road abrasive type rice whitening machine produces cracks rice, thus alleviates the operating pressure of follow-up equipment.Carry in this road in broken process, the requirement of relaxing whole rice that can be suitable, only extracts small brokens.Second white rice grader 102 is mainly used in whole the cracking rice of extracting the sand roller rice machine generation of former roads, is conducive to the processing quality promoting rice, alleviates the pressure store in cool rice storehouse.This road carry broken in, be strict with the requirement of whole rice, can be put into broken greatly follow-up cylinder and select machine to carry out final election, selected, the whole rice chosen and general meter Yi Qi import the cool rice in cool rice storehouse.Little broken and big broken rice can be packed as required or deliver to and be joined in meter device, joins rice for finished product.
13, refiner: white rice grader output is high, has again except the function of removing chaff with cool rice of dwelling.But, no matter be rotary flat sieve or slide sieve, all cannot by whole rice with crack rice be separated clean, often in whole rice containing cracking rice, containing whole rice in cracking rice.Want to obtain much more as far as possible containing cracking rice few whole rice and the whole rice during mixed people cracks rice being put forward as far as possible, the simple way of screening that relies on is difficult to gather effect.Refiner is a kind of equipment carrying out classification by length, and its separative efficiency is high, strong adaptability, but output is lower.As processed the outlet material of rotary flat sieve with refiner, so, the quality of whole rice and quantity will be improved.Refiner is that the material utilizing pocket different to length carries out classification.Refiner generally adopts cylinder separator, and its main working parts is the horizontal cylinder that an inner surface strikes out pocket, is also called cylinder.Short grain feeder is provided with in cylinder.Little broken, in broken, relative motion contact pocket and being separated can be formed at the inner surface of cylinder.Cylinder refiner mainly plays an inspection, is conducive to the rice milling yield improving finished product rice like this.This procedure process be hundred meters of gradation sizings from variously to crack rice, reclaim and be mixed in the whole rice in cracking rice, cracking rice of similar size is sorted out simultaneously, accomplish that homogeneity merges.
14, cool rice storehouse 10: no matter be brightness and the broken index of increasing for rice polishing, cold rice polishing is obviously better than hot rice polishing.Therefore, before polishing machine, increase cool rice storehouse carry out cool rice technique, make meter Wen close to room temperature, not only improve the brightness after rice polishing, can reduce and increase broken 1 ~ 2%, improve rice percentage of head rice, the increasing that reduction fuel factor causes is broken.
This technology adopts the cool rice in cool rice storehouse 10 12 hours, does smooth treatment in storehouse, guarantees that in storehouse, material is without dead angle, material first in first out, the middle seamless steel pipe by holes punched on surface is to inside, rice storehouse heat absorption dehumidification treatments, and every 1 meter of storehouse surrounding highly arranges observation window, is convenient to understand rice storehouse inner case in time.Cool rice storehouse adopts multiple exit structure, specifically determines to export number, generally adopt 2 ~ 6 to export according to the area in storehouse.
15, join meter device 11: join meter device 11 packaging and join a meter storehouse, join meter device and belt conveyor, cross to join after rice joined by a meter device fall belt conveyor from joining meter bin discharge port external rice grain pattern out, be then transported in the elevator in downstream by belt conveyor.In recent years, horn of plenty rice product structure, adopts in increasing newly-built rice factory and joins a meter technique.In China, general rice is joined rice by the mode of collocation of necessarily filling a prescription, mixing by general employing.The key equipment of joining rice is flow controller (joining a meter device) and mixing apparatus.No matter be adopt positive displacement or weight-type to join a meter device, its object is all the same, and be all intellectualized operation, automaticity is high, operates also simple and convenient.User joins the flow value of meter device according to each of formula setting, and intelligent flow regulating system regulates by this system mathematic model, and drives valve executive system to regulate hopper cross section, makes flow reach setting value, completes the quantitative criteria of joining rice.
From joining meter device 11 material out, the general belt conveyor that adopts is carried.Upper and lower lamination, when entering subsequent processing operations, will mix preferably.Do not need to be equipped with mixing apparatus specially, cause increasing broken.
In addition, the storage time that the capacity of joining meter device is generally got 1 ~ 2 hour calculates.Storehouse number generally gets 4 ~ 6, joins rice and places broken greatly, whole rice, other kind rice etc. respectively, and some client also requires brokenly also to be placed on little separately in finished bin, joins rice as required.
16, polishing machine: the polishing of rice is refine rice processing and the necessary program of producing high quality white rice, and polishing is mainly removed by the floating chaff of rubbing action by rice surface, increases the luminosity of the grain of rice, increases the fresh-keeping time.Polishing generally adopts iron roll polishing machine, and the operation principle of iron roll polishing is substantially identical with iron roll pearling, wipes from pearling, completes by after collision, polish pressure, rolling, axially conveying and spray damping 5 operation actings in conjunction.But polishing is not grind except overall chaff layer, but grind the starch particulate except trickle chaff powder and rough surface projection.Polishing is compared from working method with pearling, there is following difference: 1. polish pressure is low; 2. the density of polishing grain of rice fluid is little; 3. during polishing, the grain of rice leaves the speed of iron roll; 4. specific yield Polishing Motion area is large.Adopt 4 road polishings in the art.All adopt threeway after per pass polishing, make technique flexible, be convenient to the quality according to raw material and processing situation, specifically determine technological process.Multiple tracks polishing, multistage light stone roller, under the prerequisite guaranteeing quality, reduce husk rice pressure, minimizing is cracked rice, and improves quality and the rice milling yield of finished product rice.
17, color selector: apparatus of selecting rice color is the difference according to rice optical characteristics, utilizes photoelectric technology by the heterochromatic particle automatic sorting in rice out, thus reaches lifting rice quality, go deimpurity effect.Selected thing enters machine from the hopper at top, and by the vibration of vibrator assembly, sorted materials glides along passage, accelerates the observation area falling to entering in separation chamber, and passes between sensor and background board.Under the effect of light source, according to power and the color change of light, make system generation output signal drive electromagnetic valve work to blow out heterochromatic particle to blow in the waste chamber of receiving hopper, and good sorted materials continues to fall in receiving hopper finished product chamber, thus reach the object sorted.
Shallow water Huang in requiring for high-end look choosing, scab, obfuscation rice have good look and select effect, and once take out of than reaching more than 1:1, secondary is taken out of than reaching more than 15:1 (bad: good); Select heterochromatic, scab and other impurity once to take out of than reaching more than 1:1, secondary is taken out of than reaching more than 15:1 (bad: good); Select core once to take out of than reaching more than 1:1 in vain, secondary is taken out of than reaching more than 25:1; The complete white grain of choosing, complete yellow grain are once taken out of than reaching more than 1:1, and secondary is taken out of than reaching more than 30:1 (bad: good).
Modern rice processing enterprises, when grain purchases, is generally all direct purchase, directly processes, therefore supplied materials quality is also uneven, yellow rice kernel, heterochromatic rice, to go mouldy etc. more, therefore, in processing arrangement process, adopt three grades of look choosings, promote the processing quality of rice.In the certified products exit of every grade of color selector, all adopt threeway, to improve the flexibility of technique.
17, packing device 12: the packing method of rice finished product mainly contains gassiness packaging, vacuum packaging, gas flush packaging three kinds.Packing specification mainly contains 1kg, 2.5kg, 5kg, 10kg, 25kg, 50kg equal-specification.According to different requirements, different manner of packings and packing specification can be selected.
In the rice processing industry in modern times, use the technique of above advantage simultaneously, make rice all have larger improvement in outward appearance, color and luster, mouthfeel etc., not only improve product quality, reduce percentage of raw brokens, improve rice milling yield.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. A milled processing method, its characteristic is that includes the following steps: raw grain to the early qing dynasty, clean up - in addition to the barnyard grass - to stone - magnetic separation - surge bin buffer - husking rice husk and separation - surge bin cushion - paddy separation - surge bin - run rough - magnetic separation to buffer buffer storehouse, roll away the first level sand rough grinding white - magnetic separation - surge bin buffer to 2 white sand roller grinding, magnetic separation to buffer buffer storehouse, the third grade white sand roller grinding to buffer buffer storehouse, rice grading - magnetic separation - surge bin buffer to 4 white sand roller grinding, magnetic separation to buffer buffer storehouse, the fifth white sand roller grinding to buffer buffer storehouse, rice grading to buffer buffer storehouse, sorting machine selection - cool m - m equipment of m - magnetic separation - surge bin buffer to the first-level polishing, magnetic separation - surge bin buffer - 1 color - magnetic separation - surge bin buffer - the second polishing - magnetic separation - surge bin buffer - 2 color to surge bin buffer to rice classification, magnetic separation, surge bin buffer - the third polishing - magnetic separation - surge bin buffer - the third color - magnetic separation - surge bin cushion - 4 polishing - surge bin - > rice grading to buffer buffer storehouse, the sorting machine selection - magnetic separation - packing.
2. long-grained nonglutinous rice processing method according to claim 1, is characterized in that, is also provided with electronic measurement step between the magnetic separation after step de-stone and de-stone.
3. long-grained nonglutinous rice processing method according to claim 1, is characterized in that, makes biodiversity percentage composition in brown rice between 14 ~ 16% in the rough step of described profit by profit is rough.
4. long-grained nonglutinous rice processing method according to claim 1, is characterized in that, the described just clear cylindrical pre-cleaning screen that adopts removes the large impurity of the diameter in paddy at more than 5.0mm.
5. long-grained nonglutinous rice processing method according to claim 2, is characterized in that, described cleaning is light assorted for adopting vibrating cleaning sieve or rotary flat sieve to remove, below diameter 5.0mm little assorted and just clear in remaining large assorted.
6. long-grained nonglutinous rice processing method according to claim 2, is characterized in that, the described barnyard grass employing vibration at high speed that removes screens out barnyard grass.
7. long-grained nonglutinous rice processing method according to claim 1, is characterized in that, the rough separation of described paddy comprises use gravity type paddy separator separating step successively, and surge bunker buffer step and use plansifter for paddy separation are except rough step.
8. a long-grained nonglutinous rice system of processing, it is characterized in that, comprise the following main device be disposed adjacent successively: receiving sieve → cleaning sieve → except barnyard grass sieve → stone remover → hulling machine → grain separating machine → plansifter for paddy separation → moisten rough device → the first abrasive type rice whitening machine → the second abrasive type rice whitening machine → the 3rd abrasive type rice whitening machine → the first white rice grader → the 4th abrasive type rice whitening machine → the 5th abrasive type rice whitening machine → the second white rice grader → the first refiner → Liang meter Cang → join meter device → the first polishing machine → the first color selector → the second polishing machine → the second color selector → the 3rd white rice grader → the 3rd polishing machine → the 3rd color selector → the 4th polishing machine → a 4th white rice grader → the second refiner → packing device,
Surge bunker is provided with above each main device, surge bunker outlet above each main device is all connected with the entrance of the main device below it, elevator is provided with between adjacent two main devices, the rice output outlet of the upper main device that the entrance of elevator is adjacent connects, and the outlet of elevator is connected with the surge bunker above the main device of the next one;
Between the surge bunker of described second abrasive type rice whitening machine, the 3rd abrasive type rice whitening machine, the 4th abrasive type rice whitening machine, the 5th abrasive type rice whitening machine, the second white rice grader, the 3rd white rice grader, the 4th white rice grader, the second polishing machine, the 3rd polishing machine, the 4th polishing machine, the second color selector and the 3rd color selector and separately top, or be provided with threeway between the surge bunker separately and the elevator of surge bunker upstream, one of them outlet of described threeway is connected with the elevator in its downstream;
Magnetic separator is provided with between each surge bunker above described hulling machine, the first abrasive type rice whitening machine, the second abrasive type rice whitening machine, the 3rd abrasive type rice whitening machine, the 4th abrasive type rice whitening machine, the 5th abrasive type rice whitening machine, the first polishing machine, the second polishing machine, the 3rd polishing machine, the first color selector, the second color selector and the 3rd color selector and the elevator of each surge bunker upstream.
9. long-grained nonglutinous rice system of processing according to claim 8, it is characterized in that, the rough device of described profit comprises spraying machine and is arranged at clean rough storehouse below spraying machine, the entrance of described spraying machine is connected with the lift outlet of its upstream, the entrance in described clean rough storehouse is connected by threeway with between spraying machine, and the outlet in described clean rough storehouse is connected with the elevator of the first abrasive type rice whitening machine upstream.
10. long-grained nonglutinous rice system of processing according to claim 8, it is characterized in that, also flow scale is provided with between stone remover and hulling machine, the entrance of described flow scale is connected by threeway with the elevator of upstream, the below of flow scale is provided with lower surge bunker, the outlet of flow scale is connected with the lower surge bunker entrance below it, and the outlet of described lower surge bunker is connected with the elevator entrance in its downstream.
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| CN113908907A (en) * | 2021-10-08 | 2022-01-11 | 安徽倮倮米业有限公司 | Novel high-quality high-benefit paddy color separation process |
| CN113908907B (en) * | 2021-10-08 | 2022-10-11 | 安徽倮倮米业有限公司 | Novel high-quality high-benefit paddy color separation process |
| CN115463704A (en) * | 2022-08-15 | 2022-12-13 | 宁夏宁禾谷米业有限公司 | High-quality rice processing production system |
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| CN105149035B (en) | 2017-11-21 |
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Effective date of registration: 20181203 Address after: 441000 Wangfengzi Building, Qilihe Road, Xiangyang High-tech Zone, Hubei Province, 1 Building, 1 Unit, 30 Stories and 7 Rooms Patentee after: Hubei Tianbin Machinery Co.,Ltd. Address before: 441021 41 Changmen Street, Xiangcheng District, Xiangfan City, Hubei Province Patentee before: Dai Yan Ling |
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Denomination of invention: Indica rice processing method and processing system Effective date of registration: 20220824 Granted publication date: 20171121 Pledgee: Bank of China Limited Xiangyang Branch Pledgor: Hubei Tianbin Machinery Co.,Ltd. Registration number: Y2022980013476 |