CN104221625A - Anti-yellowing technology for warehousing of high-moisture rice - Google Patents
Anti-yellowing technology for warehousing of high-moisture rice Download PDFInfo
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- CN104221625A CN104221625A CN201310243108.9A CN201310243108A CN104221625A CN 104221625 A CN104221625 A CN 104221625A CN 201310243108 A CN201310243108 A CN 201310243108A CN 104221625 A CN104221625 A CN 104221625A
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Abstract
The invention discloses an anti-yellowing technology for warehousing of high-moisture rice. For solving the problem that yellowing is caused by high temperature of rice piles, the characteristics that temperature is high and humidity is low in daytime in Southern China are utilized, natural air is used as medium, the rice is warehoused by layering, and anti-yellowing purpose is achieved by ventilation, rainfall and temperature control in a warehouse. The anti-yellowing technology is low in investment and cost, good in antimould effect and grain quality and high in handling capacity, grains can be largely purchased by purchasing enterprises, and the problems of rainfall, temperature control and yellowing prevention of high-moisture grains are well solved; the grains purchased can be directly warehoused after simply cleaned, two procedures of drying and controlling temperature and storage are integrated, and anti-yellowing effect is better.
Description
technical field:
The present invention relates to a kind of Paddy With High Moisture Content Stored to put in storage anti-xanthochromia technology, belong to grain storage technical field.
background technology:
In recent years, along with large quantities of migrant workers is worked, soil concentrates in sub-fraction big farming household hand by circulation, the harvesting time is more concentrated, once have enterprise comparatively large to raw grain demand, by traditional method for airing, shine that grain place is very bad looks for, usually shine two or three ton-grain food, need 2 to 3 days, waste time and energy, move into the cost of labor that takes out of and ted by hundred jin of calculating, cost of labor is very high, and the most formidable is restrict by weather, just cannot airing once rain, cause the xanthochromia of raw grain mould.And adopt the method for hyperthermia drying: one is that equipment is not enough, and drying capacity is limited; Two be high, the energy consumption for drying of medium temperature that needs greatly, costly; Three is that after drying, paddy fissure rate is high, and head rice rate reduces, and has impact to paddy processing and edible quality.
summary of the invention:
The object of the invention is the problem in order to solve high-moisture raw grain precipitation, temperature control, anti-xanthochromia, providing a kind of Paddy With High Moisture Content Stored to put in storage anti-xanthochromia technology.
The present invention adopts following technical scheme to realize its goal of the invention: a kind of Paddy With High Moisture Content Stored puts in storage anti-xanthochromia technology, select the heat insulation warehouse of the good attic type of air-tightness, long 24 meters of warehouse, wide 22 meters, spatial altitude 8.5 meters in storehouse, 6 meters, special grain line, the hanging wheel one of track pulley is had at storehouse inner top mounting strap, 2 groups, the gallery ventilation road in three roads is flatly provided with bottom storehouse, percent opening is 30%, air channel spacing is 4 meters, on the basis in gallery ventilation road, 50*24-2 semi-circular ground cage expanded metal lath ventilating duct is adopted to set up 8 auxiliary air channels along the horizontal direction of branch air duct, its spacing is 3 meters, two 1.5 meters, back gauge walls, air channel, whole storehouse is connected as a single entity, formed network-like.
Before paddy puts in storage, ventilation debugging is carried out to wind net, regulates wind deflector, make each point air quantity in wind net even, and the blue mouth of iron valve of 35cm*35cm*35cm is welded at the cross intersection borehole of two main air ducts, the wind deflector of vertical direction is installed, when grain heap is in closed condition lower than when less than 3 meters.Skeleton is done again with wooden frame, by rodent-proof mesh additional steel window screen cloth two-layer four sides envelope, making a collection of specification is 35cm*35cm*150cm ventilating duct, and on two iron valve orchids, vertically two wooden ventilating ducts are installed respectively in advance, note the covering on top, ventilation road junction when paddy puts in storage, be strictly on guard against that grain grain is mourned into ventilating duct to block wind net.When grain is evened up and installed to 3 meters high, additionally arrange the 2nd layer of wind net, the wooden ventilating duct of wind net, air inlet is connected with vertical ventilating duct, and ornaments mode is with at the bottom of storehouse.
Grain warehouse-in selects purchase warehouse entry evening, daytime aeration to reduce moisture content, night ventilation is lowered the temperature, and warehouse-in moisture controls within 20%, and when putting in storage, paddy need through cleaning, screens out impurity with what reduce insect pest microorganism and mould and grows place.
Specified operational procedure is: check the quality-weigh-unload-carry-clear up-carry put in storage-storehouse in second grain throwing machine in first grain throwing machine-storehouse.
The in good time adjustment direction of the hanging wheel that in storehouse, grain throwing machine can utilize Cang Ding to install and angle, guarantee that warehouse-in grain layer evenly remains on 80-100 cm.Takeover time should be held carefully, must start to purchase morning 7 next day evening on the same day.00 was terminated in the past, treated that this batch of grain layer completes substantially, stopped purchase, take off flat with artificial grain layer evenly evacuated, insert rice temperature bar, detect that grain temperature grain wets, wet in temperature storehouse, storehouse, temperature air humidity, simultaneously subregion sets up an office after sampling send control laboratory, removes door limit conveyer belt, closes the doors and windows, open ventilation road junction, when environmental temperature is higher than 35 DEG C, air humidity lower than 70% time, (Hunan south regional the clear and crisp days of autumn, the fair weather on daytime in mid or late August and September all can reach this condition), open blower fan.To be hot-air enter from ventilation road junction at the bottom of storehouse ventilating path, and the wind net mean allocation air be made up of ventilating duct, exchanges with the free water contained by grain grain through grain heap, discharged by the axial flow blower that wall is installed.Opening the blower fan time rests in the morning about 9 to 6 pm, after shutdown, opens blower fan to the door and window on face wall, closes ventilation road junction, then opens blower fan and scatter and disappear damp and hot in storehouse, and artificial dredging takes off grain face, detect grain stack temperature moisture, and control laboratory is sent in sampling.
When the highest grain temperature is lower than 38 DEG C, most high-moisture lower than 15% time, just can continue purchase evening on the same day, each new warehouse-in depth of grain layer also should control at 80-100cm, purchases complete, repeats aforesaid operations.Line of placing rice height is 6 meters, and a point 6-7 warehouse-in effect is best.Notice that grain layer receives 3 meters of Gao Shixu and additionally arranges the 2nd layer of wind net.
If grain stack temperature and moisture fail to reach above-mentioned condition, should continue to purchase again after ventilation reaches condition in evening on the same day and second day daytime.When meeting the cloudy day or nighttime temperature is not high, can hang in ventilating duct the packed quicklime of each ventilation road junction fiber 15 kilograms, the moisture allowing quicklime absorb in air separates tide naturally, namely to the air heat by way of air channel, again reduce air channel water loading of the air, the growth of mould during grain can also be suppressed to pile.Its principle is: CaO+H2O → Ca (OH)+hot gas ↑.The slaked lime generated has the effect of disinfection.Quicklime should be changed once for every 24 hours.
Grain warehouse entry equipment for subsequent use refers to: conveyer belt 2-3 bar, TQWL-YWL80B type cleaning sieve one, YBCJ8*15 type hydraulic pressure machine for conveying material into storehouse one, the grain throwing machine that lift is 12 meters two.
Aeration to reduce moisture content equipment and detecting instrument refer to: SF-6 type pipeline-type axial blower fan 2, be fixedly mounted on the north wall of more than warehouse special grain line height, single-machine capacity is 2.2KW, and total head is 300Pa, and air quantity is 18700m3/h, LDS-ID foodstuff water content quick determiner, the electronic reconstitute device of tradition meter Wen Ji, JNYX2000-19, FJQ80-2 riffle sampler, JLGL45-B test rice huller, and LTJM-2008 tests rice mill, the electronic screening washer of JJSD, grain sorting sieve, sensibility reciprocal 0.1mg and 0.Each one of the upper utensil type electronic balance of 01g, HJ-2 aflatoxin analyzer.
Owing to have employed above technical scheme, the present invention preferably resolve high-moisture raw grain be mixed into grain heap after crux problem, namely pile high temperature by grain and cause xanthochromia, utilize the feature that south day temperature high humility in autumn is little, take natural air as medium, take axial flow blower as power, adopt paddy layering to put in storage, then reach the object of anti-xanthochromia by the ventilation in storehouse, precipitation, temperature control; This technological investment is few, expense is low, anti-mold effect is good, grain quality is excellent, disposal ability is large, be convenient to purchase enterprises and can purchase raw grain in large quantities, preferably resolve the problem of high-moisture raw grain precipitation, temperature control, anti-xanthochromia, just can directly put in storage after simple cleaning after raw grain purchase, dry temperature control process is unified with storage twice program, and anti-xanthochromia effect is better.
specific implementation method:
Below in conjunction with embodiment, summary of the invention is described further:
embodiment 1:
Select the heat insulation warehouse of the good attic type of air-tightness, long 24 meters of warehouse, spatial altitude 8.5 meters in wide 22 meters, storehouse, 6 meters, special grain line, the hanging wheel one of track pulley is had at storehouse inner top mounting strap, 2 groups, the gallery ventilation road in three roads is flatly provided with bottom storehouse, percent opening is 30%, air channel spacing is 4 meters, on the basis in gallery ventilation road, adopts 50*24-2 semi-circular ground cage expanded metal lath ventilating duct to set up 8 auxiliary air channels along the horizontal direction of branch air duct, its spacing is 3 meters, two 1.5 meters, back gauge walls, make air channel, whole storehouse be connected as a single entity, are formed network-like.Sterilization was carried out to this hole capital after selling all securities in 5 days in advance.
Purchase paddy put in storage on 1st, before putting in storage, ventilation debugging is carried out to wind net, regulate wind deflector, make each point air quantity in wind net even, and the blue mouth of iron valve of 35cm*35cm*35cm is welded at the cross intersection borehole of two main air ducts, the wind deflector of vertical direction is installed, when grain heap is in closed condition lower than when less than 3 meters.Skeleton is done again with wooden frame, by rodent-proof mesh additional steel window screen cloth two-layer four sides envelope, making a collection of specification is 35cm*35cm*150cm ventilating duct, and on two iron valve orchids, vertically two wooden ventilating ducts are installed respectively in advance, note the covering on top, ventilation road junction when paddy puts in storage, be strictly on guard against that grain grain is mourned into ventilating duct to block wind net.When grain is evened up and installed to 3 meters high, additionally arrange the 2nd layer of wind net, the wooden ventilating duct of wind net, air inlet is connected with vertical ventilating duct, and ornaments mode is with at the bottom of storehouse.
This real estate Indica rice 285120 kilograms (moisture is 15%-19%) after purchase evening on the 1st, cleaning artificial thin flat grain before selecting morning 8 on the 2nd is piled, grain layer average thickness is 91cm, insert 28, rice temperature bar, the warm ball position of rice is about 40cm apart from ground, and subregion sets up an office, sampling detects grain quality.
Two Fans are successively opened morning on the 2nd 9; 6 pm on the 2nd shuts down; open blower fan to the door and window on face wall; starting shooting, it is damp and hot in storehouse to scatter and disappear half an hour again; night is linked in two ventilation road junctions with quicklime 30 kilograms points two bag; in 10 starts evening on the 2nd; to 5 shutdown afternoon on the 3rd, door window start is fallen apart damp and hot half an hour, puts in storage and detects and sampling; accumulative start 27 hours; power consumption 115.6 degree, over two days, weather is fine day, temperature 37 DEG C; air humidity is 67%, ventilate before and after each test point grain warm water divide and quality comparison situation as follows:
Ventilation forward backward averaging grain temperature rise 2.75 degree, average moisture reduces by 3.31%, and grain yellow rice kernel keeps not becoming, and rice color smell is normal, and unit precipitation energy consumption is 0.12Kw.h/T.1%.
Continue evening on the 3rd to receive grain; purchase this real estate Indica rice 316900 kilograms (moisture is 14.6%-18.7%); select morning 7 on the 4th and within 50 minutes, complete artificial thin flat grain heap before; the grain layer average thickness of this new purchase is 100cm. weather on the 4th is fine day; temperature 39 DEG C; air humidity is 65%; two Fans are successively opened at 9 in morning on the 4th; 6 pm on the 4th shuts down; open blower fan to the door and window on face wall, more damp and hotter in storehouse of scattering and disappearing half an hour of starting shooting. before and after ventilating each test point grain warm water divide and quality comparison situation as follows:
Bottom average grain temperature rise 1 degree before and after ventilating, average moisture reduces by 0.5%, and grain yellow rice kernel keeps not becoming, and rice color smell is normal. and the 2nd layer of average grain temperature rise 3 degree, average moisture reduces by 2.15%, and grain yellow rice kernel keeps not becoming, and rice color smell is normal.
Continue evening on the 4th to receive grain, purchase this real estate Indica rice 305290 kilograms (moisture is 14.9%-18.8%) before morning 8 on the 5th, complete artificial thin flat grain heap, grain layer average thickness is 95cm, weather was fine day on 5th, temperature 39 DEG C, air humidity is 64%, two Fans are successively opened at 9 in morning on the 5th, put into two bags of quicklimes at two ventilation road junctions in the at 9 o'clock in evening on the 5th, shut down to 8 a.m. on the 7th, open blower fan to the door and window on face wall, starting shooting, it is damp and hot in storehouse to scatter and disappear half an hour again, accumulative ventilation 47 hours, detect grain warm water in storehouse to divide and grain quality, reach safety requirements, after 2nd layer of ventilating duct is installed, newly put in storage grain THICKNESS CONTROL 80 at every turn
￣between 100cm, close bottom layer ventilation network air inlet during aeration to reduce moisture content on daytime, open 2 layers of ventilation network air inlet, when evening is aeration-cooling, close 2 layers of ventilation network air inlet, open bottom layer ventilation network air inlet.
Circulation like this is returned multiple, on 12nd, all warehouse-in was complete in this storehouse, accumulative purchase 1806810 kilograms, grain, average Filling high is 5.81 meters, accumulative ventilation time is 196 hours, the highest grain temperature occurred in storehouse is 38 DEG C, the high-temperature duration that grain layer is often put controls within 120 hours, effectively controlling high-moisture grain to put in storage the high temperature xanthochromia caused. precipitation average amplitude reaches 3.4%, if the words that cooling factor is ignored, precipitation energy consumption is 0.14Kw.h/T.1%, and the power consumption amount of money that every 100 jin of paddy are used for precipitation is 0.13 yuan.
Claims (1)
1. a Paddy With High Moisture Content Stored puts in storage anti-xanthochromia technology, it is characterized in that selecting the heat insulation warehouse of the good attic type of air-tightness, long 24 meters of warehouse, wide 22 meters, spatial altitude 8.5 meters in storehouse, 6 meters, special grain line, the hanging wheel one of track pulley is had at storehouse inner top mounting strap, 2 groups, the gallery ventilation road in three roads is flatly provided with bottom storehouse, percent opening is 30%, air channel spacing is 4 meters, on the basis in gallery ventilation road, 50*24-2 semi-circular ground cage expanded metal lath ventilating duct is adopted to set up 8 auxiliary air channels along the horizontal direction of branch air duct, its spacing is 3 meters, two 1.5 meters, back gauge walls, air channel, whole storehouse is connected as a single entity, formed network-like,
Before paddy puts in storage, ventilation debugging is carried out to wind net, regulates wind deflector, make each point air quantity in wind net even, and the blue mouth of iron valve of 35cm*35cm*35cm is welded at the cross intersection borehole of two main air ducts, the wind deflector of vertical direction is installed, when grain heap is in closed condition lower than when less than 3 meters; Skeleton is done again with wooden frame, by rodent-proof mesh additional steel window screen cloth two-layer four sides envelope, making a collection of specification is 35cm*35cm*150cm ventilating duct, and on two iron valve orchids, vertically two wooden ventilating ducts are installed respectively in advance, note the covering on top, ventilation road junction when paddy puts in storage, be strictly on guard against that grain grain is mourned into ventilating duct to block wind net; When grain is evened up and installed to 3 meters high, additionally arrange the 2nd layer of wind net, the wooden ventilating duct of wind net, air inlet is connected with vertical ventilating duct, and ornaments mode is with at the bottom of storehouse;
Grain warehouse-in selects purchase warehouse entry evening, daytime aeration to reduce moisture content, night ventilation is lowered the temperature, and warehouse-in moisture controls within 20%, and when putting in storage, paddy need through cleaning, screens out impurity with what reduce insect pest microorganism and mould and grows place;
Specified operational procedure is: check the quality-weigh-unload-carry-clear up-carry put in storage-storehouse in second grain throwing machine in first grain throwing machine-storehouse;
The in good time adjustment direction of the hanging wheel that in storehouse, grain throwing machine can utilize Cang Ding to install and angle, guarantee that warehouse-in grain layer evenly remains on 80-100 cm, takeover time should be held carefully, must start evening on the same day to purchase and terminate before 7:00 point morning next day, treat that this batch of grain layer completes substantially, stop purchase, with artificial grain layer evenly evacuated take off flat, insert rice temperature bar, detect grain temperature grain to wet, wet in temperature storehouse, storehouse, temperature air humidity, simultaneously subregion sets up an office after sampling send control laboratory, remove door limit conveyer belt, close the doors and windows, open ventilation road junction, when environmental temperature is higher than 35 DEG C, air humidity lower than 70% time, (the Hunan regional the clear and crisp days of autumn in south, the fair weather on daytime in mid or late August and September all can reach this condition), open blower fan, to be hot-air enter from ventilation road junction at the bottom of storehouse ventilating path, and the wind net mean allocation air be made up of ventilating duct, exchanges with the free water contained by grain grain through grain heap, discharged by the axial flow blower that wall is installed, opening the blower fan time rests in the morning about 9 to 6 pm, after shutdown, opens blower fan to the door and window on face wall, closes ventilation road junction, then opens blower fan and scatter and disappear damp and hot in storehouse, and artificial dredging takes off grain face, detect grain stack temperature moisture, and control laboratory is sent in sampling,
When the highest grain temperature is lower than 38 DEG C, most high-moisture lower than 15% time, just can continue purchase evening on the same day, each new warehouse-in depth of grain layer also should control at 80-100cm, purchases complete, repeats aforesaid operations; Line of placing rice height is 6 meters, and a point 6-7 warehouse-in effect is best; Notice that grain layer receives 3 meters of Gao Shixu and additionally arranges the 2nd layer of wind net;
If grain stack temperature and moisture fail to reach above-mentioned condition, should continue to purchase again after ventilation reaches condition in evening on the same day and second day daytime; When meeting the cloudy day or nighttime temperature is not high, can hang in ventilating duct the packed quicklime of each ventilation road junction fiber 15 kilograms, the moisture allowing quicklime absorb in air separates tide naturally, namely to the air heat by way of air channel, again reduce air channel water loading of the air, the growth of mould during grain can also be suppressed to pile;
Its principle is: CaO+H2O → Ca (OH)+hot gas ↑; The slaked lime generated has the effect of disinfection; Quicklime should be changed once for every 24 hours;
Grain warehouse entry equipment for subsequent use refers to: conveyer belt 2-3 bar, TQWL-YWL80B type cleaning sieve one, YBCJ8*15 type hydraulic pressure machine for conveying material into storehouse one, the grain throwing machine that lift is 12 meters two;
Aeration to reduce moisture content equipment and detecting instrument refer to: SF-6 type pipeline-type axial blower fan 2, be fixedly mounted on the north wall of more than warehouse special grain line height, single-machine capacity is 2.2KW, total head is 300Pa, air quantity is 18700m3/h, LDS-ID foodstuff water content quick determiner, tradition meter Wen Ji, the electronic reconstitute device of JNYX2000-19, FJQ80-2 riffle sampler, JLGL45-B test rice huller, LTJM-2008 tests rice mill, the electronic screening washer of JJSD, each one of the upper utensil type electronic balance of grain sorting sieve, sensibility reciprocal 0.1mg and 0.01g, HJ-2 aflatoxin analyzer.
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| CN201310243108.9A CN104221625A (en) | 2013-06-19 | 2013-06-19 | Anti-yellowing technology for warehousing of high-moisture rice |
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| CN201310243108.9A CN104221625A (en) | 2013-06-19 | 2013-06-19 | Anti-yellowing technology for warehousing of high-moisture rice |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642535A (en) * | 2015-02-09 | 2015-05-27 | 安徽天利粮油集团股份有限公司 | Rice drying device |
| CN105284310A (en) * | 2015-09-11 | 2016-02-03 | 盐城市盐都区盐淮米业有限公司 | Warehousing method for fresh-keeping of rice |
| CN106391175A (en) * | 2016-11-07 | 2017-02-15 | 界首市鑫龙粮油机械加工有限公司 | High-efficiency cleaning, impurity removal and storage method for rice |
| CN110463451A (en) * | 2019-09-18 | 2019-11-19 | 农业农村部规划设计研究院 | A kind of grain storage apparatus for melting gravity-flow ventilation and Driven by Solar Energy ventilation and being integrated |
| CN112841298A (en) * | 2021-02-01 | 2021-05-28 | 安徽粮食批发交易市场有限公司现代粮食物流中心库 | Pesticide-free grain physical safe storage technology |
-
2013
- 2013-06-19 CN CN201310243108.9A patent/CN104221625A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642535A (en) * | 2015-02-09 | 2015-05-27 | 安徽天利粮油集团股份有限公司 | Rice drying device |
| CN105284310A (en) * | 2015-09-11 | 2016-02-03 | 盐城市盐都区盐淮米业有限公司 | Warehousing method for fresh-keeping of rice |
| CN106391175A (en) * | 2016-11-07 | 2017-02-15 | 界首市鑫龙粮油机械加工有限公司 | High-efficiency cleaning, impurity removal and storage method for rice |
| CN106391175B (en) * | 2016-11-07 | 2018-06-19 | 界首市鑫龙粮油机械加工有限公司 | A kind of efficient cleaning removal of impurities storage method of paddy |
| CN110463451A (en) * | 2019-09-18 | 2019-11-19 | 农业农村部规划设计研究院 | A kind of grain storage apparatus for melting gravity-flow ventilation and Driven by Solar Energy ventilation and being integrated |
| CN112841298A (en) * | 2021-02-01 | 2021-05-28 | 安徽粮食批发交易市场有限公司现代粮食物流中心库 | Pesticide-free grain physical safe storage technology |
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Application publication date: 20141224 |