CN103141564A - Vacuum freezing puff-drying processing method of hawthorn - Google Patents
Vacuum freezing puff-drying processing method of hawthorn Download PDFInfo
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- CN103141564A CN103141564A CN2013101022291A CN201310102229A CN103141564A CN 103141564 A CN103141564 A CN 103141564A CN 2013101022291 A CN2013101022291 A CN 2013101022291A CN 201310102229 A CN201310102229 A CN 201310102229A CN 103141564 A CN103141564 A CN 103141564A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a vacuum freezing puff-drying processing method of hawthorn, and belongs to dry-processing of hawthorn. The method comprises the following steps: (1) pre-treating raw material: carrying out picking, cleaning and kernel penetrating treatment on fresh hawthorn; soaking the treated hawthorn in a sugar solution with 40% of sugar content for 12h, then taking the hawthorn out for sprinkling, removing the sugar solution on the surface of the hawthorn, and draining off water; (3) spreading the dry hawthorn to form a single layer uniformly distributed on a material tray, putting the hawthorn into an instant freezer, quickly freezing the hawthorn at -40 DEG C for 4-6 hours to ensure that water in the hawthorn is completely frozen; and (4)carrying out vacuum freezing puff-drying with a vacuum freezing puff-dryer. The processing method can maintain the original biological activity and nutritious components of hawthorn food to the maximum extent and improve the mouthfeel, and has the characteristics of good crispness, intact outer appearance, good mouthfeel, prolonged shelf life, no need of any additive and antiseptic, relatively low drying energy consumption, improved production efficiency, and the like.
Description
Technical field
The present invention relates to the drying of a kind of hawthorn, the vacuum refrigeration explosion puffing drying processing method of especially a kind of hawthorn.
Background technology
Hawthorn has important medical value, since ancient times, just becomes the good medicine of spleen benefiting and stimulating the appetite, relieving dyspepsia, phlegm reduction of blood circulation promoting.Hawthorn contains the materials such as carbohydrate, protein, fat, vitamin C, carrotene, starch, malic acid, citric acid, calcium and iron.In addition, contain organic acid such as chlorogenic acid, caffeic acid and tannin, the acid anhydride of tanning, epicatechol, choline, acetylcholine, Sitosterolum etc. in hawthorn.Hawthorn can prevention and cure of cardiovascular disease, has hemangiectasis, cardiac stimulant, increase CF, improves the heart vigor, the stimulating central nervous system system, reduces blood pressure and cholesterol, softening blood vessel and diuresis and sedation; Prevent and treat artery sclerosis, anti-aging, anticancer effect.Crataegolic acid also has cardiotonic, and is also helpful to senile heart disease.Its energy appetite-stimulating indigestion-relieving offsets carnivorous stagnant effect better especially, has all adopted hawthorn in a lot of digestant medicines; Hawthorn has the effect that activates blood circulation and disperses blood clots, and helps to remove local extravasated blood state, and traumatic injury is had auxiliary curative effect; Hawthorn has contraction to the uterus, the effect that expedites the emergence of is arranged the pregnant woman just before giving birth the time, and can promote the uterine involution in postpartum; The generation of free radical is blocked and reduced to the flavonoids that hawthorn is contained and the substances such as vitamin C, carrotene, can strengthen the immunity of body, and anti-aging, anticancer effect is arranged.Having in hawthorn relievings asthma reduces phlegm, the composition of anti-bacteria, treatment abdominal pain diarrhea.
Vacuum Freeze Drying Technology for Food is a complex art interdisciplinary, relates to multidisciplinary, multi-field.The progress of food freeze drying technology depends on the development of cross discipline.Vacuum Freezing ﹠ Drying Technology can to greatest extent, maximum duration keep its look, flavor, shape and nutritional labeling.
Now when hawthorn is carried out drying, vacuum freeze drying normally, and only can produce the appearance fold through the final products hawthorn of vacuum freeze drying, the phenomenon that structure is collapsed, product hardness is large have a strong impact on the sensory evaluation of product, and mouthfeel is poor, the hawthorn shelf-life is short, and energy consumption for drying is high.At present, good solution is not also arranged.
Summary of the invention
technical assignment of the present invention is that the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn is provided for above-mentioned deficiency of the prior art, the vacuum refrigeration explosion puffing drying processing method of this a kind of hawthorn has can keep the original biologically active of haw food and nutritional labeling to greatest extent, and improve mouthfeel, has good crisp brittleness, profile is complete, mouthfeel is good, improved the added value of hawthorn, extend the shelf life, need not any additive and anticorrisive agent, energy consumption for drying is lower, the thermal efficiency is higher, improved production efficiency, and the characteristics of hawthorn production cost have effectively been reduced.
The technical solution adopted for the present invention to solve the technical problems is: it comprises the following steps: (1) pretreatment of raw material: bright hawthorn is processed through pick, cleaning, saturating core;
(2) hawthorn of handling well be impregnated in the liquid glucose of sugar content 40% after 12h, take out spray, remove hawthorn surface liquid glucose, control is done;
(3) will control the hawthorn that does and spread out into individual layer, be uniformly distributed on material tray, put into instant freezer, carry out quick-frozen 4-6h at-40 ℃, guarantee moisture fully charge in hawthorn;
(4) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good hawthorn of quick-frozen, put into Bulking tank together with one of material tray, be placed on the carriage of heating plate, make material tray consistent with levels heating plate distance; The temperature of charge probe is inserted in hawthorn, with the variations in temperature of monitoring hawthorn; Close the Bulking tank door, the sealing Bulking tank; The state of hawthorn can be learnt by the peep hole on the Bulking tank door;
Open refrigeration unit, open magnetic valve on condenser tube and the second operated pneumatic valve between cold-trap and Bulking tank, refrigeration unit provides low-temperature receiver by condenser tube to cold-trap and Bulking tank, and the temperature in cold-trap is down to-50 ℃;
Open the vacuum unit, open the first operated pneumatic valve between vacuum unit and cold-trap, the vacuum unit vacuumizes simultaneously to Bulking tank and cold-trap, extracts non-condensable gas; Keep below Bulking tank internal pressure 100pa beginning vacuum freeze drying process;
the ON cycle water pot, open water pump and the magnetic valve with the frequency-converter device that are connected with lower plate type heat exchanger, to pass into steam in lower plate type heat exchanger, cold water in the circulation water pot is carried out heat exchange, condensed water after heat exchange is discharged lower plate type heat exchanger, cold water in the circulation water pot heats up the heating plate in Bulking tank after lower plate type heat exchanger heating, temperature of heating plate is learnt by the temperature of heating plate probe that contacts with heating plate, make temperature of heating plate rise to design temperature 65-70 ℃, when surpassing design temperature, the flow velocity that can change by the frequency converter of adjusting water pump hot water makes hot water remain on design temperature, if the temperature adjustment of hot water exceeds the control range of frequency converter, can close the magnetic valve and the water pump that are connected with lower plate type heat exchanger, make it to be cooled to design temperature, with this temperature that keeps heating plate in design temperature,
Along with the carrying out of vacuum freeze drying, the temperature of hawthorn progressively rises, and during to 20-25 ℃, closes the second operated pneumatic valve until the hawthorn temperature, closes refrigeration unit;
The magnetic valve that unlatching is connected with aseptic air filter injects the aseptic compressed air of steam and impurity after filtration to Bulking tank, makes Bulking tank pressure recover normal pressure; During to 60-65 ℃, open the second operated pneumatic valve until the hawthorn temperature, make cold-trap and Bulking tank UNICOM, utilize pressure differential between two tanks to carry out expanded and humidity discharging is solidified; 7-8 time so repeatedly, begin to cool down process; Close the magnetic valve and the water pump that are connected with lower plate type heat exchanger, open the band frequency-converter device water pump and the magnetic valve that are connected with upper plate type heat exchanger, to pass into frozen water in upper plate type heat exchanger, after carrying out heat exchange with hot water in the circulation water pot, discharge through the warm water after upper board-like exchanger heat exchange; Hot water in the circulation water pot makes the heating plate cooling in Bulking tank after upper plate type heat exchanger is cooling, be cooled to room temperature, and closing device is opened Bulking tank, and is minute grade packaged, obtains the crisp complete haw products of vacuum refrigeration explosion puffing drying.
described vacuum refrigeration swelling drier comprises cold-trap, refrigeration unit, the vacuum unit, Bulking tank, plate type heat exchanger and circulation water pot, the two ends of described cold-trap are connected with Bulking tank with the vacuum unit respectively, described refrigeration unit is connected with cold-trap by condenser tube, described Bulking tank upper and lower is respectively arranged with water inlet pipe and outlet pipe, be provided with the circulation water pot between the water inlet pipe of described Bulking tank outside and outlet pipe, be arranged in parallel between described circulation water pot and water inlet pipe, lower two plate type heat exchangers, on described, be respectively arranged with water pump between lower two plate type heat exchangers and circulation water pot, one end of described Bulking tank is provided with the Bulking tank door, be provided with material tray in Bulking tank, the bottom of described Bulking tank is provided with aseptic air filter, be respectively arranged with the first operated pneumatic valve and the second operated pneumatic valve between described cold-trap and vacuum unit and Bulking tank, between described refrigeration unit and condenser tube, between Bulking tank and aseptic air filter and the two ends of two plate type heat exchangers are respectively arranged with magnetic valve, be provided with heating plate in described Bulking tank, described heating plate comprises Transverse Heated plate and vertical heating plate, described Transverse Heated plate longitudinally heating plate evenly arranges, be symmetrically arranged with respectively carriage on vertical heating plate of described every two Transverse Heated plate both sides, described material tray is separately positioned on carriage, the upper and lower of described Transverse Heated plate is connected with water inlet pipe and outlet pipe respectively, be provided with temperature of heating plate probe and temperature of charge probe in described Bulking tank, described temperature of heating plate probe and temperature of charge probe contact with Transverse Heated plate and material tray respectively, be provided with peep hole on described Bulking tank door.
Described the first operated pneumatic valve, the second operated pneumatic valve and magnetic valve are connected with control system respectively, and the opening and closing of the first operated pneumatic valve, the second operated pneumatic valve and magnetic valve are all controlled automatically by control system.
The vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn of the present invention compared to the prior art, has following outstanding beneficial effect: the hawthorn of producing through the vacuum refrigeration swelling drier, can compare favourably with the product quality of vacuum freeze drying on color and local flavor, nutritional labeling, porous, spongiform structure have been produced through the hawthorn of explosion puffing drying due to raw material inside simultaneously, compare product with the vacuum freeze drying product good crisp brittleness is arranged, profile is complete, mouthfeel is crisp, has improved the added value of hawthorn; Nutritious, hawthorn vacuum refrigeration explosion puffing drying product is without the technique such as broken, as to squeeze the juice, concentrate, the shape, the color and luster that have not only kept hawthorn have also possessed intrinsic low in calories, the low fat characteristics of hawthorn, keep to greatest extent more nutritional labeling in hawthorn; Energy consumption for drying is lower, owing to having taked the measures such as circulating cooling and circulating hot water heating, the thermal efficiency is higher, can consume the energy consumption well below vacuum freeze drying, this has greatly improved production efficiency in actual production, and has effectively reduced the hawthorn production cost; Environmental protection, in process, water consumption is few, and the discarded object of generation is few, meets environmental requirement, and processing byproduct is further processing and utilization also, pollutes few; Hawthorn long shelf-life, the water content of expanded hawthorn be generally below 5%, is unfavorable for the growth of microorganism breeding, can long preservation; Overcome the shortcoming that contains grease in the lower temperature vacuum frying product, be difficult for causing the characteristics such as bad quality such as grade spoiled by rancid oil or fat variation.
Description of drawings
Accompanying drawing 1 is the main TV structure schematic diagram of the vacuum refrigeration swelling drier that uses in the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn;
Accompanying drawing 2 is that Bulking tank and the heating plate of the vacuum refrigeration swelling drier that uses in the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn amplifies the plan structure schematic diagram;
Accompanying drawing 3 is Bulking tank enlarged left views of the vacuum refrigeration swelling drier that uses in the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn;
Accompanying drawing 4 is material tray enlarged left views of the vacuum refrigeration swelling drier that uses in the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn;
description of reference numerals: 1, the vacuum unit, 2, the first operated pneumatic valve, 3, cold-trap, 4, magnetic valve, 5, refrigeration unit, 6, condenser tube, 7, the second operated pneumatic valve, 8, aseptic air filter, 9, peep hole, 10, carriage, 11, Bulking tank, 12, material tray, 13, outlet pipe, 14, the Bulking tank door, 15, the temperature of heating plate probe, 16, the temperature of charge probe, 17, heating plate, 18, water inlet pipe, 19, lower plate type heat exchanger, 20, the circulation water pot, 21, upper plate type heat exchanger, 22, water pump, 23, the Transverse Heated plate, 24, vertical heating plate.
The specific embodiment
Be described in detail below with reference to the vacuum refrigeration explosion puffing drying processing method of Figure of description 1 to 4 pairs of a kind of hawthorn of the present invention of accompanying drawing.
The vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn of the present invention, it comprises the following steps: (1) pretreatment of raw material: bright hawthorn is processed through pick, cleaning, saturating core;
(2) hawthorn of handling well be impregnated in the liquid glucose of sugar content 40% after 12h, take out spray, remove hawthorn surface liquid glucose, control is done;
(3) will control the hawthorn that does and spread out into individual layer, be uniformly distributed on material tray 12, put into instant freezer, carry out quick-frozen 4-6h at-40 ℃, guarantee moisture fully charge in hawthorn;
(4) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good hawthorn of quick-frozen, put into Bulking tank 11 together with 12 1 of material trays, be placed on the carriage 10 of heating plate 17, make material tray 12 consistent with levels heating plate distance; Temperature of charge probe 16 is inserted in hawthorn, with the variations in temperature of monitoring hawthorn; Close Bulking tank door 14, sealing Bulking tank 11; The state of hawthorn can be learnt by the peep hole 9 on Bulking tank door 14;
ON cycle water pot 20, open water pump 22 and the magnetic valve 4 with the frequency-converter device that are connected with lower plate type heat exchanger 19, to pass into steam in lower plate type heat exchanger 19, cold water in circulation water pot 20 is carried out heat exchange, condensed water after heat exchange is discharged lower plate type heat exchanger 19, cold water in circulation water pot 20 heats up the heating plate 17 in Bulking tank 11 after lower plate type heat exchanger 19 heating, heating plate 17 temperature are learnt by the temperature of heating plate probe 15 that contacts with heating plate 17, make heating plate 17 temperature rise to design temperature 65-70 ℃, when surpassing design temperature, the flow velocity that can change by the frequency converter of adjusting water pump 22 hot water makes hot water remain on design temperature, if the temperature adjustment of hot water exceeds the control range of frequency converter, can close the magnetic valve and the water pump that are connected with lower plate type heat exchanger 19, make it to be cooled to design temperature, with this temperature that keeps heating plate 17 in design temperature,
Along with the carrying out of vacuum freeze drying, the temperature of hawthorn progressively rises, and during to 20-25 ℃, closes the second operated pneumatic valve 7 until the hawthorn temperature, closes refrigeration unit 5;
The magnetic valve that unlatching is connected with aseptic air filter 8 injects the aseptic compressed air of steam and impurity after filtration to Bulking tank 11, makes Bulking tank 11 pressure recover normal pressures; During to 60-65 ℃, open the second operated pneumatic valve 7 until the hawthorn temperature, make cold-trap 3 and Bulking tank 11 UNICOMs, utilize pressure differential between two tanks to carry out expanded and humidity discharging is solidified; 7-8 time so repeatedly, begin to cool down process; Close the magnetic valve and the water pump that are connected with lower plate type heat exchanger 19, open the band frequency-converter device water pump and the magnetic valve that are connected with upper plate type heat exchanger 21, to pass into frozen water in upper plate type heat exchanger 21, after carrying out heat exchange with hot water in circulation water pot 20, discharge through the warm water after upper plate type heat exchanger 21 heat exchanges; Hot water in circulation water pot 20 make heating plate 17 coolings Bulking tank 11 in after upper plate type heat exchanger 21 is cooling, be cooled to room temperature, and closing device is opened Bulking tank 11, divide grade packagedly, obtain the crisp complete haw products of vacuum refrigeration explosion puffing drying.
described vacuum refrigeration swelling drier comprises cold-trap 3, refrigeration unit 5, vacuum unit 1, Bulking tank 11, plate type heat exchanger and circulation water pot 20, the two ends of described cold-trap 3 are connected with Bulking tank 11 with vacuum unit 1 respectively, described refrigeration unit 5 is connected with cold-trap 3 by condenser tube 6, described Bulking tank 11 upper and lowers are respectively arranged with water inlet pipe 18 and outlet pipe 13, be provided with circulation water pot 20 between the water inlet pipe 18 of described Bulking tank 11 outsides and outlet pipe 13, be arranged in parallel between described circulation water pot 20 and water inlet pipe 18, lower two plate type heat exchangers, on described, be respectively arranged with water pump 22 between lower two plate type heat exchangers and circulation water pot 20, one end of described Bulking tank 11 is provided with Bulking tank door 14, be provided with material tray 12 in Bulking tank 11, the bottom of described Bulking tank 11 is provided with aseptic air filter 8, be respectively arranged with the first operated pneumatic valve 2 and the second operated pneumatic valve 7 between described cold-trap 3 and vacuum unit 1 and Bulking tank 11, between described refrigeration unit 5 and condenser tube 6, between Bulking tank 11 and the aseptic air filter 8 and two ends of two plate type heat exchangers are respectively arranged with magnetic valve 4, be provided with heating plate 17 in described Bulking tank 11, described heating plate 17 comprises Transverse Heated plate 23 and vertical heating plate 24, described Transverse Heated plate 23 longitudinally heating plate 24 evenly arranges, be symmetrically arranged with respectively carriage 10 on vertical heating plate 24 of described every two Transverse Heated plate 23 both sides, described material tray 12 is separately positioned on carriage 10, the upper and lower of described Transverse Heated plate 23 is connected with water inlet pipe 18 and outlet pipe 13 respectively, the interior heat drying mode of Bulking tank 11 is the interior logical hot water heating of built-in heating plate 17, thereby pass into steam by plate type heat exchanger and provide hot water to the cool water heating in circulation water pot 20 to heating plate 17, form airtight loop, Bulking tank 11 pressurizations are adopted through the filtrated air that filters and are realized.Therefore adopt heating plate plate type heating mode, strengthened and be subjected to thermocontact area, improved the efficiency of heating surface, the temperature fluctuation in whole Bulking tank 11 is little, also be more convenient for controlling, and hot water can recycle, and is more energy-saving and cost-reducing; Be provided with temperature of heating plate probe 15 and temperature of charge probe 16 in described Bulking tank 11, described temperature of heating plate probe 15 and temperature of charge probe 16 contact with Transverse Heated plate 23 and material tray 12 respectively, be convenient to detect the temperature of heating plate 17 and material tray 12 interior materials, be provided with peep hole 9 on described Bulking tank door 14, be convenient to observe the state of the material in Bulking tank 11.
Described the first operated pneumatic valve 2, the second operated pneumatic valve 7 are connected with control system respectively with magnetic valve 4, and the opening and closing of the first operated pneumatic valve 2, the second operated pneumatic valve 7 and magnetic valve 4 are all controlled automatically by control system.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (3)
1. the vacuum refrigeration explosion puffing drying processing method of a hawthorn, is characterized in that: comprise the following steps: (1) pretreatment of raw material: bright hawthorn is processed through pick, cleaning, saturating core;
(2) hawthorn of handling well be impregnated in the liquid glucose of sugar content 40% after 12h, take out spray, remove hawthorn surface liquid glucose, control is done;
(3) will control the hawthorn that does and spread out into individual layer, be uniformly distributed on material tray, put into instant freezer, carry out quick-frozen 4-6h at-40 ℃, guarantee moisture fully charge in hawthorn;
(4) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good hawthorn of quick-frozen, put into Bulking tank together with one of material tray, be placed on the carriage of heating plate, make material tray consistent with levels heating plate distance; The temperature of charge probe is inserted in hawthorn, with the variations in temperature of monitoring hawthorn; Close the Bulking tank door, the sealing Bulking tank; The state of hawthorn can be learnt by the peep hole on the Bulking tank door;
Open refrigeration unit, open magnetic valve on condenser tube and the second operated pneumatic valve between cold-trap and Bulking tank, refrigeration unit provides low-temperature receiver by condenser tube to cold-trap and Bulking tank, and the temperature in cold-trap is down to-50 ℃;
Open the vacuum unit, open the first operated pneumatic valve between vacuum unit and cold-trap, the vacuum unit vacuumizes simultaneously to Bulking tank and cold-trap, extracts non-condensable gas; Keep below Bulking tank internal pressure 100pa beginning vacuum freeze drying process;
the ON cycle water pot, open water pump and the magnetic valve with the frequency-converter device that are connected with lower plate type heat exchanger, to pass into steam in lower plate type heat exchanger, cold water in the circulation water pot is carried out heat exchange, condensed water after heat exchange is discharged lower plate type heat exchanger, cold water in the circulation water pot heats up the heating plate in Bulking tank after lower plate type heat exchanger heating, temperature of heating plate is learnt by the temperature of heating plate probe that contacts with heating plate, make temperature of heating plate rise to design temperature 65-70 ℃, when surpassing design temperature, the flow velocity that can change by the frequency converter of adjusting water pump hot water makes hot water remain on design temperature, if the temperature adjustment of hot water exceeds the control range of frequency converter, can close the magnetic valve and the water pump that are connected with lower plate type heat exchanger, make it to be cooled to design temperature, with this temperature that keeps heating plate in design temperature,
Along with the carrying out of vacuum freeze drying, the temperature of hawthorn progressively rises, and during to 20-25 ℃, closes the second operated pneumatic valve until the hawthorn temperature, closes refrigeration unit;
The magnetic valve that unlatching is connected with aseptic air filter injects the aseptic compressed air of steam and impurity after filtration to Bulking tank, makes Bulking tank pressure recover normal pressure; During to 60-65 ℃, open the second operated pneumatic valve until the hawthorn temperature, make cold-trap and Bulking tank UNICOM, utilize pressure differential between two tanks to carry out expanded and humidity discharging is solidified; 7-8 time so repeatedly, begin to cool down process; Close the magnetic valve and the water pump that are connected with lower plate type heat exchanger, open the band frequency-converter device water pump and the magnetic valve that are connected with upper plate type heat exchanger, to pass into frozen water in upper plate type heat exchanger, after carrying out heat exchange with hot water in the circulation water pot, discharge through the warm water after upper board-like exchanger heat exchange; Hot water in the circulation water pot makes the heating plate cooling in Bulking tank after upper plate type heat exchanger is cooling, be cooled to room temperature, and closing device is opened Bulking tank, and is minute grade packaged, obtains the crisp complete haw products of vacuum refrigeration explosion puffing drying.
2. the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn according to claim 1, it is characterized in that: described vacuum refrigeration swelling drier comprises cold-trap, refrigeration unit, the vacuum unit, Bulking tank, plate type heat exchanger and circulation water pot, the two ends of described cold-trap are connected with Bulking tank with the vacuum unit respectively, described refrigeration unit is connected with cold-trap by condenser tube, described Bulking tank upper and lower is respectively arranged with water inlet pipe and outlet pipe, be provided with the circulation water pot between the water inlet pipe of described Bulking tank outside and outlet pipe, be arranged in parallel between described circulation water pot and water inlet pipe, lower two plate type heat exchangers, on described, be respectively arranged with water pump between lower two plate type heat exchangers and circulation water pot, one end of described Bulking tank is provided with the Bulking tank door, be provided with material tray in Bulking tank, the bottom of described Bulking tank is provided with aseptic air filter, be respectively arranged with the first operated pneumatic valve and the second operated pneumatic valve between described cold-trap and vacuum unit and Bulking tank, between described refrigeration unit and condenser tube, between Bulking tank and aseptic air filter and the two ends of two plate type heat exchangers are respectively arranged with magnetic valve, be provided with heating plate in described Bulking tank, described heating plate comprises Transverse Heated plate and vertical heating plate, described Transverse Heated plate longitudinally heating plate evenly arranges, be symmetrically arranged with respectively carriage on vertical heating plate of described every two Transverse Heated plate both sides, described material tray is separately positioned on carriage, the upper and lower of described Transverse Heated plate is connected with water inlet pipe and outlet pipe respectively, be provided with temperature of heating plate probe and temperature of charge probe in described Bulking tank, described temperature of heating plate probe and temperature of charge probe contact with Transverse Heated plate and material tray respectively, be provided with peep hole on described Bulking tank door.
3. the vacuum refrigeration explosion puffing drying processing method of a kind of hawthorn according to claim 2, it is characterized in that: described the first operated pneumatic valve, the second operated pneumatic valve and magnetic valve are connected with control system respectively, and the opening and closing of the first operated pneumatic valve, the second operated pneumatic valve and magnetic valve are all controlled automatically by control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310102229.1A CN103141564B (en) | 2013-03-27 | 2013-03-27 | Vacuum freezing puff-drying processing method of hawthorn |
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| CN201310102229.1A CN103141564B (en) | 2013-03-27 | 2013-03-27 | Vacuum freezing puff-drying processing method of hawthorn |
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| CN107616538A (en) * | 2017-11-03 | 2018-01-23 | 宁夏杞芽食品科技有限公司 | A kind of expanded reduction apparatus of fructus lycii |
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| CN103636754A (en) * | 2013-11-25 | 2014-03-19 | 张俊辉 | Haw processing method |
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| CN103141564B (en) | 2014-02-12 |
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