CN105394517A - Continuous parboiled rice processing method - Google Patents

Continuous parboiled rice processing method Download PDF

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Publication number
CN105394517A
CN105394517A CN201510696373.1A CN201510696373A CN105394517A CN 105394517 A CN105394517 A CN 105394517A CN 201510696373 A CN201510696373 A CN 201510696373A CN 105394517 A CN105394517 A CN 105394517A
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China
Prior art keywords
paddy
rice
temperature
processing method
continuous
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Pending
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CN201510696373.1A
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Chinese (zh)
Inventor
周润根
柯岩
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Hubei Bi Shan Machinery Ltd Co
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Hubei Bi Shan Machinery Ltd Co
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Priority to CN201510696373.1A priority Critical patent/CN105394517A/en
Publication of CN105394517A publication Critical patent/CN105394517A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Cereal-Derived Products (AREA)
  • Commercial Cooking Devices (AREA)

Abstract

The invention discloses a continuous parboiled rice processing method. The method comprises the following steps: conveying cleaned rice to a clean rice barn; conveying rice in the clean rice barn to an immersion tank, and immersing; conveying the immersed rice to a steaming tank, and introducing steam to steam the rice; conveying the steamed rice to a fluidized bed, and carrying out dehydration drying; and conveying the dehydrated and dried rice to a batch processing type low-temperature cycle drying machine, and drying. In the immersion period, a hot water constant temperature circulating system connected with the immersion tank guarantees water temperature consistence of all points in the immersion tank; and fluidized bed high-temperature rapid dehydration drying is carried out in the first stage, and batch processing low-temperature cycle drying is adopted in the second stage, so the drying time is greatly shortened, drying uniformity of the rice is guaranteed, and the dried rice has no cracks and has extremely low broken rate, so the processing method has the advantages of large output, low energy consumption, no pollution, production cost reduction, and excellent quality of parboiled rice.

Description

A kind of continuous preboiled rice processing method
Technical field
The invention belongs to preboiled rice manufacture field, be specifically related to a kind of continuous preboiled rice processing method.
Background technology
Paddy after cleaning is through hydro-thermal and vapour cooking, and after dry process, then the rice finished product that the paddy that carries out hulling, husk rice obtain is called preboiled rice, also referred to as partly boiling rice.The whole world has the paddy of 1/5 quantity to make preboiled rice.
Preboiled rice tool has the following advantages: be 1. of high nutritive value than general rice, grain of rice lustrous surface is transparent, ripe rice rate is high; 2. add man-hour broken rice rate obviously to reduce, chaff powder is few, and rice milling yield improves, and rice bran oil yield is higher than the large rice bran oil chaff of common process; 3. not easily infested, not easily go mouldy, be easy to storage.
Chinese patent discloses " a kind of continuous preboiled rice production facility " (CN202095478U) two patents of " a kind of preboiled rice equipment " (CN201640369U) of strong invention and Chen Qianjun invention.The preboiled rice processing mode of above-mentioned two inventions manual processing, batch type before comparing has very big extension and improvement.But still there is following not enough and defect in its technology: 1. yield poorly, energy consumption is large in actual production, and pollute heavy, production cost is high; 2. when soaking, in steeping tank, water temperature is uneven; 3. the shortcomings such as the unreasonable quality of the preboiled rice of output that causes of well-done rice drying method is wayward, and explosive waist, easily increasing are broken are with not enough.
Summary of the invention
The object of the invention is to for above-mentioned deficiency, provide that a kind of method output is large, energy consumption is low, pollution-free, and the colory continuous preboiled rice processing method of preboiled rice.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of continuous preboiled rice processing method, comprise the steps:
1) clear up paddy, then the paddy after cleaning is transported to clean granary;
2) paddy in clean granary is transported to after in steeping tank, in steeping tank, fills hot water paddy is soaked;
3) paddy after soaking is transported in cooker, and is filled with steam gas steaming is carried out to paddy;
4) paddy after boiling is transported to fluid bed to dehydrate;
5) by step 4) in dehydrate after the paddy tempering layer that is transported to the upper strata of batch-type low-temperature circulation dryer carry out tempering, then paddy enters the drying layer of batch-type low-temperature circulation dryer lower floor, the surface moisture of paddy is taken away by clean hot blast impingement drying layer, paddy is dried, the paddy of drying through drying layer rises to the tempering layer tempering of batch-type low-temperature circulation dryer again, then drying layer is entered again, circulation like this is until paddy divides water to be down to 14% ~ 16%, go out batch-type low-temperature circulation dryer to enter parboiled rice storehouse and leave standstill and namely obtain described preboiled rice.
Further, described step 2) in, when the paddy water content before immersion is not more than 13%, paddy is filled with steam and preheats paddy before soaking in steeping tank.
Further, described step 2) in hot water temperature be 60 DEG C ~ 80 DEG C.
Further, described steeping tank is connected with the hot water constant temperature circulatory system, carries out extracorporal circulatory system to the hot water in described steeping tank; If in hot water circuit process, the temperature of hot water, lower than the temperature preset, is filled with steam to the described hot water constant temperature circulatory system and heats hot water.
Further, described step 5) in the temperature of clean hot blast be 100 DEG C ~ 120 DEG C.
Further, described cooker upper end is connected with feeding mechanism, lower end is connected with discharging mechanism, forms continuously stewing.
Further, the paddy after described steeping tank soaks is transported to described cooker by sieve-board type jigging conveyer, and the paddy of described cooker discharging mechanism is transported to fluid bed by sieve-board type jigging conveyer.
Further, the processing unit (plant) that described continuous preboiled rice processing method adopts comprises receiving sieve, the vibrating cleaning sieve be connected with receiving sieve, the clean granary be connected with vibrating cleaning sieve by elevator, the steeping tank be connected with clean granary with elevator by belt conveyor, the parboiled rice tank be connected with steeping tank by sieve-board type jigging conveyer and elevator, the fluid bed be connected with parboiled rice tank by sieve-board type jigging conveyer, the batch-type low-temperature drier that is connected with fluid bed by belt conveyor and elevator.
Further, described steeping tank is also connected with hot water circuit constant temperature system, and described hot water circuit constant temperature system is also connected with jet chimney.
The present invention compared with prior art, has following beneficial effect: between soak period, by the hot water constant temperature circulatory system be connected with steeping tank tank, ensures the water temperature uniformity of each point of steeping tank inside; And steam can also be filled with to steeping tank to heat in the process of water circulation, make the water temperature in steeping tank constant; First stage adopts fluid bed high temperature quick dewatering drying, and second stage adopts batch-type low-temperature circulating dry, not only substantially reduces drying time, and can ensure again that rice drying is even, after dry, paddy does not have crackle, and percentage of damage is extremely low simultaneously; Therefore, processing method output of the present invention is large, energy consumption is low, pollution-free, and reduces production cost, preboiled rice best in quality.
Accompanying drawing explanation
Fig. 1 is the processing unit (plant) schematic diagram of continuous preboiled rice processing method of the present invention.
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein: elevator 1, receiving sieve 2, vibrating cleaning sieve 3, drag conveyor 4, clean granary 5, belt conveyor 6, weighing balance 7, conveyer 8, steeping tank 9, sieve-board type jigging conveyer 10, the hot water constant temperature circulatory system 11, cooker 12, fluid bed 13, batch-type low-temperature drier 14.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Continuous preboiled rice processing method of the present invention comprises the steps, Fig. 1 is the installation drawing of this processing method.
1) paddy containing impurity enters receiving sieve 2 by elevator 1, assorted greatly to remove various straw, the rope made of hemp etc., then enter vibrating cleaning sieve 3 to clear up further, remove various thin assorted, the paddy cleaned out sends into clean granary 5 by elevator 1, drag conveyor 4.
2) paddy in clean granary 5 is transported in steeping tank 9 by conveyer 8 after belt conveyor 6, elevator 1, weighing balance 7 measure, if paddy water content is not more than 13%, with regard to being first filled with steam in steeping tank 9, paddy is preheated, contribute to paddy fast softening, paddy is more easily absorbed water in immersion process, to reduce soak time; And then to fill temperature in steeping tank 9 be that the hot water of 60 DEG C ~ 80 DEG C soaks paddy; According to different rice quality and water content, temperature and the soak time of hot water are soaked in setting; When reaching soak time, steeping tank 9 by suction pump draining outward automatically, automatic-prompting discharging when water drains lower water-level gauge place in steeping tank 9; By strictly controlling water temperature in steeping tank 9 and soak time can ensure that the color and luster of the preboiled rice of producing meets the requirements;
In the present embodiment, steeping tank 9 is connected with the hot water constant temperature circulatory system 11, ensures the quality of the paddy soaked.Between soak period, by the hot water constant temperature circulatory system 11 be connected with steeping tank tank, tank body outer circulation is carried out to the water in steeping tank, the water temperature uniformity of each point of steeping tank inside can be ensured like this; Further, if hot water water temperature, lower than the temperature preset, can also be filled with steam to steeping tank and heat, make the water temperature in steeping tank 9 constant in the process of water circulation.
3) the sieve-board type jigging conveyer 10 of paddy discharging below steeping tank 9 after soaking is inputted elevator 1, be transported in cooker 12 by elevator 1, and in cooker 12, be filled with steam gas steaming is carried out to paddy; By the feeding mechanism of cooker 12 upper end, the discharging mechanism of lower end, form continuously stewing; In addition, by regulating pressure-reducing valve to regulate the admission pressure of cooker and the speed of feeding-discharging mechanism, the quality of boiling paddy can effectively be controlled;
Sieve-board type jigging conveyer 10 not only has the effect of material conveying, and the condensed water produced after the moisture simultaneously also can not drained in filter infusion tank and hot paddy go out steeping tank, to ensure the environmental sanitation of production area.
4) paddy after boiling is transported to fluid bed 13 by sieve-board type jigging conveyer 10 to dehydrate; Well-done paddy water content is very large (more than 40%) usually, flows through the paddy of the compass screen surface of fluid bed 13, in fluidized state under the penetrating of clean hot blast (temperature is at 100 ~ 120 DEG C), and slowly flows to machine outlet from machine inlet.In this flow process, under the hot wind action of cleaning, make rapidly the surface moisture of paddy vaporize, and siphoned away by outer fan, make paddy water content drop to about 20% fast, this water content of paddy is substantially just consistent with the paddy water content of just gathering in from rice field.
Sieve-board type jigging conveyer 10, while guarantee conveying paddy, can effectively filter the condensed water produced in digestion process, can better be dry so that follow-up.
5) by step 4) in dehydrate after paddy be transported to batch-type low-temperature circulation dryer 14 and be similar to the sun and naturally dry.One deck drying layer is had in batch-type low-temperature drier 14 bottom design, more than drying layer there are 7 ~ 8 layers of tempering layer, paddy temperature after fluid bed rapid draing is higher, first the tempering layer of drying machine is entered, until fill batch-type low-temperature drier 14, tempering is carried out on charging limit, limit, makes paddy internal moisture slowly toward surface penetration.
After material filled by batch-type low-temperature drier 14, paddy is made to enter drying layer by circulating lifting machine.Drying layer is designed with several material interlayer.Hot-blast stove penetrates material interlayer through the clean hot blast (temperature is at 40 ~ 60 DEG C) of heat exchanger, paddy surface moisture is taken away, dries paddy.The paddy of drying through drying layer to rise to the tempering layer top of batch-type low-temperature drier 14 by circulating lifting machine, so circulate, until paddy moisture drops to 14% ~ 16%, then go out batch-type low-temperature drier 14, enter parboiled rice storehouse.Leave standstill and can carry out husk rice processing in 12 hours.
Through Two stage dryer, not only substantially reduce drying time, can ensure again that rice drying is even, after dry, paddy does not have crackle, and percentage of damage is extremely low simultaneously.
The processing unit (plant) of continuous preboiled rice processing method comprises the receiving sieve 2 be connected with elevator 1, the vibrating cleaning sieve 3 be connected with receiving sieve 2, by the clean granary 5 that elevator 1 is connected with vibrating cleaning sieve 3 with drag conveyor 4, by the steeping tank 9 that belt conveyor 6 is connected with clean granary 5 with elevator 1 and conveyer 8, by the parboiled rice tank 12 that sieve-board type jigging conveyer 10 is connected with steeping tank 9 with elevator 1, by the fluid bed 13 that sieve-board type jigging conveyer 10 is connected with parboiled rice tank 12, by the batch-type low-temperature drier 14 that belt conveyor 6 is connected with fluid bed 13 with elevator 1 and conveyer 8, in addition, steeping tank 9 is also connected with hot water circuit constant temperature system 11, hot water circuit constant temperature system 11 is also connected with jet chimney.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., be all included within protection scope of the present invention.

Claims (9)

1. a continuous preboiled rice processing method, is characterized in that: comprise the steps:
1) clear up paddy, then the paddy after cleaning is transported to clean granary (5);
2) paddy in clean granary (5) is transported to after in steeping tank (9), in steeping tank (9), fills hot water paddy is soaked;
3) paddy after soaking is transported in cooker (12), and is filled with steam gas steaming is carried out to paddy;
4) paddy after boiling is transported to fluid bed (13) to dehydrate;
5) by step 4) in dehydrate after the paddy tempering layer that is transported to batch-type low-temperature circulation dryer (14) upper strata carry out tempering, then paddy enters the drying layer of batch-type low-temperature circulation dryer (14) lower floor, the surface moisture of paddy is taken away by clean hot blast impingement drying layer, paddy is dried, the paddy of drying through drying layer rises to the tempering layer tempering of batch-type low-temperature circulation dryer (14) again, then drying layer is entered again, circulation like this is until paddy divides water to be down to 14% ~ 16%, go out batch-type low-temperature circulation dryer (14) to enter parboiled rice storehouse and leave standstill and namely obtain described preboiled rice.
2. continuous preboiled rice processing method according to claim 1, it is characterized in that: described step 2) in, when paddy water content before immersion is not more than 13%, paddy is filled with steam and preheats paddy before soaking in steeping tank (9).
3. continuous preboiled rice processing method according to claim 1 and 2, is characterized in that: described step 2) in hot water temperature be 60 DEG C ~ 80 DEG C.
4. continuous preboiled rice processing method according to claim 1 and 2, it is characterized in that: described steeping tank (9) is connected with the hot water constant temperature circulatory system (11), extracorporal circulatory system is carried out to the hot water in described steeping tank (9); If in hot water circuit process, the temperature of hot water, lower than the temperature preset, is filled with steam to the described hot water constant temperature circulatory system and heats hot water.
5. continuous preboiled rice processing method according to claim 1 and 2, is characterized in that: described step 5) in the temperature of clean hot blast be 100 DEG C ~ 120 DEG C.
6. continuous preboiled rice processing method according to claim 1 and 2, is characterized in that: described cooker (12) upper end is connected with feeding mechanism, lower end is connected with discharging mechanism, forms continuously stewing.
7. continuous preboiled rice processing method according to claim 1 and 2, it is characterized in that: the paddy after described steeping tank (9) soaks is transported to described cooker (12) by sieve-board type jigging conveyer (10), the paddy of described cooker (12) discharging mechanism is transported to fluid bed by sieve-board type jigging conveyer (10).
8. continuous preboiled rice processing method according to claim 1, it is characterized in that: the processing unit (plant) that described continuous preboiled rice processing method adopts comprises receiving sieve (2), the vibrating cleaning sieve (3) be connected with receiving sieve (2), by the clean granary (5) that elevator (1) is connected with vibrating cleaning sieve (3), by the steeping tank (9) that belt conveyor (6) is connected with clean granary (5) with elevator (1), by the parboiled rice tank (12) that sieve-board type jigging conveyer (10) is connected with steeping tank (9) with elevator (1), by the fluid bed (13) that sieve-board type jigging conveyer (19) is connected with parboiled rice tank (12), by the batch-type low-temperature drier (14) that belt conveyor (6) is connected with fluid bed (13) with elevator (1).
9. continuous preboiled rice processing method according to claim 8, it is characterized in that: described steeping tank (9) is also connected with hot water circuit constant temperature system (11), described hot water circuit constant temperature system (11) is also connected with jet chimney.
CN201510696373.1A 2015-10-22 2015-10-22 Continuous parboiled rice processing method Pending CN105394517A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108634184A (en) * 2018-05-15 2018-10-12 安徽省徽观生态农业科技有限公司 A kind of continuous preboiled rice processing unit (plant)
CN109221916A (en) * 2018-10-30 2019-01-18 安徽省徽观生态农业科技有限公司 A kind of intelligent integrated networked control systems for preboiled rice processing soaking cooking
CN109259046A (en) * 2018-10-30 2019-01-25 安徽省徽观生态农业科技有限公司 A kind of a full set of intelligent automation control system for preboiled rice processing
CN109730251A (en) * 2019-03-21 2019-05-10 安徽农业大学 A kind of preparation method of preboiled rice
CN110547395A (en) * 2019-09-12 2019-12-10 浙江大学 Method for preparing slowly digestible steamed rice by high-pressure short-time pretreatment
CN110583975A (en) * 2018-10-30 2019-12-20 安徽省徽观生态农业科技有限公司 A intelligent stoving control system for processing of millet rice that evaporates
CN114190439A (en) * 2020-09-18 2022-03-18 内蒙古蒙牛乳业(集团)股份有限公司 Method for producing grain milk

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CN200946961Y (en) * 2006-08-29 2007-09-12 国家粮食储备局郑州科学研究设计院 Low temperature vacuum continuous drying device for grain slow-resuscitation and quality keeping
CN101878813A (en) * 2010-06-22 2010-11-10 武汉工业学院 Split-range drying method for paddy
CN202095478U (en) * 2011-06-14 2012-01-04 长沙施科威机器制造有限公司 Continuous preboiled rice production facility
CN202095479U (en) * 2011-06-14 2012-01-04 长沙施科威机器制造有限公司 Vertical batch pre-boiled rice production equipment
CN204499359U (en) * 2015-01-06 2015-07-29 湖北碧山机械股份有限公司 A kind of continuous preboiled rice production facility

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200946961Y (en) * 2006-08-29 2007-09-12 国家粮食储备局郑州科学研究设计院 Low temperature vacuum continuous drying device for grain slow-resuscitation and quality keeping
CN101878813A (en) * 2010-06-22 2010-11-10 武汉工业学院 Split-range drying method for paddy
CN202095478U (en) * 2011-06-14 2012-01-04 长沙施科威机器制造有限公司 Continuous preboiled rice production facility
CN202095479U (en) * 2011-06-14 2012-01-04 长沙施科威机器制造有限公司 Vertical batch pre-boiled rice production equipment
CN204499359U (en) * 2015-01-06 2015-07-29 湖北碧山机械股份有限公司 A kind of continuous preboiled rice production facility

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108634184A (en) * 2018-05-15 2018-10-12 安徽省徽观生态农业科技有限公司 A kind of continuous preboiled rice processing unit (plant)
CN109221916A (en) * 2018-10-30 2019-01-18 安徽省徽观生态农业科技有限公司 A kind of intelligent integrated networked control systems for preboiled rice processing soaking cooking
CN109259046A (en) * 2018-10-30 2019-01-25 安徽省徽观生态农业科技有限公司 A kind of a full set of intelligent automation control system for preboiled rice processing
CN110583975A (en) * 2018-10-30 2019-12-20 安徽省徽观生态农业科技有限公司 A intelligent stoving control system for processing of millet rice that evaporates
CN109730251A (en) * 2019-03-21 2019-05-10 安徽农业大学 A kind of preparation method of preboiled rice
CN110547395A (en) * 2019-09-12 2019-12-10 浙江大学 Method for preparing slowly digestible steamed rice by high-pressure short-time pretreatment
CN114190439A (en) * 2020-09-18 2022-03-18 内蒙古蒙牛乳业(集团)股份有限公司 Method for producing grain milk
CN114190439B (en) * 2020-09-18 2023-08-25 内蒙古蒙牛乳业(集团)股份有限公司 Method for producing cereal milk

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Application publication date: 20160316