CN103141858A - Processing method for vacuum frozen puffed beef cube - Google Patents
Processing method for vacuum frozen puffed beef cube Download PDFInfo
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- CN103141858A CN103141858A CN2013101013127A CN201310101312A CN103141858A CN 103141858 A CN103141858 A CN 103141858A CN 2013101013127 A CN2013101013127 A CN 2013101013127A CN 201310101312 A CN201310101312 A CN 201310101312A CN 103141858 A CN103141858 A CN 103141858A
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Abstract
The invention discloses a processing method for vacuum frozen puffed beef cubes, and belongs to the dry-cure of beef cubes. The method comprises the following steps of: (1) pretreating raw materials, namely, washing fresh beef, cutting the washed fresh beef into meat blocks of 500-1000g, putting the meat blocks into a pot and boiling for 30-40min, fishing out, cutting the boiled meat blocks into beef cubes of 1cm by using a cuber, adding different soup bases with different recipes according to different tastes, boiling, soaking, boiling the soap till being dried, taking out the beef cubes and draining; (2) spreading the drained beef cubes in a single layer, uniformly distributing on material trays, putting the material trays with the beef cubes into an instant freezer, and instantly freezing for 4-6h at minus 40 DEG C so as to ensure that the moisture in the beef cubes is completely frozen; and (3) carrying out vacuum freezing puffing drying by using a vacuum freezing puffing drying machine. By utilizing the method, the original biological activity and the nutrition components of the beef cubes are maintained to the maximum extent, and moreover, the beef cubes have the characteristics of good crispness, completeness in appearance, additive or preservative free, low drying energy consumption, capacities of improving the taste and improving the production efficiency, and the like.
Description
Technical field
The present invention relates to the drying of a kind of diced beef, the processing method of the expanded diced beef of especially a kind of vacuum refrigeration.
Background technology
Beef is a kind of high-protein food, contains protein 20.1g (approximately Duo 3.3% than pork, approximately Duo 10% than mutton) in every 100g beef, and fatty 10.2g also contains calcium 7mg, iron 0.9mg, phosphorus 170mg, and Cobastab
l0.07mg, Cobastab
120.15mg, nicotinic acid 6mg and a small amount of vitamin A etc.Due to the beef cholesterol level and fat all low than other meat product, contain protein higher, delicious flavour, nutritional labeling is easy to digested, thereby always very popular.Beef flavour is sweet warm in nature, and An Zhongyi gas is arranged, and tonifying spleen and stomach, strong waist leg, quenches one's thirst and the function of saliva only, always is considered to the dietotherapy good merchantable brand, enjoys the laudatory title of " favourite son in meat ".In beef, fat compares content seldom with chicken, duck or the egg of same amount, and in beef, the fat of half is unrighted acid.Contain CLA in the meat of the cud such as beef, mutton animal, the different physiological roles such as that this composition has is antitumor, anti-diabetic, inhibition obesity.The diced beef that becomes take beef as Raw material processing contains abundant nutritional labeling, is mainly protein and fat.Containing protein 45.6g in every 100g diced beef, is 2.3 times of fresh beef, and fat content is 40g, is 4 times of fresh beef.Contain in addition calcium 43mg in diced beef, phosphorus 464mg, iron 15.6mg.These inorganic constituents decapacitation are satisfied outside the nutritional need of human body, also have important physiological action, and wherein the existence form of iron is mainly heme iron, and bioavailability is high, and the interference of other factors in the unable to take food thing more is conducive to the absorption of human body.
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 diced beef is carried out drying, vacuum freeze drying normally, and only the final products diced beef of process vacuum freeze drying can produce the appearance fold, the phenomenon that structure is collapsed, product hardness is large, have a strong impact on the sensory evaluation of product, and mouthfeel is poor, and the diced beef 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 processing method of the expanded diced beef of a kind of vacuum refrigeration is provided for above-mentioned deficiency of the prior art, the processing method of the expanded diced beef of this a kind of vacuum refrigeration has can keep the original biologically active of diced beef 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 diced beef, 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 diced beef 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: fresh beef is cleaned, be cut into the 500-1000g cube meat, cube meat is put into pot boils 30-40min and pulls out, be cut into the square diced beef of 1cm with dicer, can boil infusion by the soup stock that different taste adds different formulations, treat that soup juice boils dry, diced beef is taken out, drained;
(2) raw material of handling well is 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 diced beef;
(3) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good diced beef 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 diced beef, with the variations in temperature of monitoring diced beef; Close the Bulking tank door, the sealing Bulking tank; The state of diced beef 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 70-75 ℃, 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 diced beef progressively rises, and during to 5-10 ℃, closes the second operated pneumatic valve until the diced beef temperature, closes refrigeration unit;
Adjust temperature of heating plate and reach 80-85 ℃, open the magnetic valve that is connected with aseptic air filter, inject the aseptic compressed air of steam and impurity after filtration to Bulking tank, make Bulking tank pressure recovery normal pressure; Open the second operated pneumatic valve, make cold-trap and Bulking tank UNICOM, utilize the pressure differential between two tanks to carry out expanded; After carrying out 2-3 identical puffing 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 in Bulking tank be cooled to 60-65 ℃ after upper plate type heat exchanger is cooling; Close the magnetic valve of plate type heat exchanger, open the magnetic valve of lower plate type heat exchanger, keep the temperature of heating plate at design temperature 60-65 ℃, the beginning process of vacuum drying, the vacuum drying time is 120-150min; Close the magnetic valve of lower plate type heat exchanger, the magnetic valve of plate type heat exchanger in unlatching, cooling temperature of heating plate to 30 ℃, the solid type process of beginning humidity discharging, consistent with expanded operating process, number of repetition 6-8 time, this process shortens drying time greatly; Continue to cool to room temperature after the solid type of humidity discharging, closing device is opened Bulking tank, and is minute grade packaged, obtains the expanded crisp diced beef product of vacuum refrigeration.
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 processing method of the expanded diced beef of a kind of vacuum refrigeration of the present invention compared to the prior art, has following outstanding beneficial effect: the diced beef 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 diced beef 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 diced beef; 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 diced beef 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; Diced beef long shelf-life, the water content of expanded diced beef be generally below 7%, 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 processing method of the expanded diced beef of a kind of vacuum refrigeration;
Accompanying drawing 2 is that Bulking tank and the heating plate of the vacuum refrigeration swelling drier that uses in the processing method of the expanded diced beef of a kind of vacuum refrigeration 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 processing method of the expanded diced beef of a kind of vacuum refrigeration;
Accompanying drawing 4 is material tray enlarged left views of the vacuum refrigeration swelling drier that uses in the processing method of the expanded diced beef of a kind of vacuum refrigeration;
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 processing method of Figure of description 1 to 4 pairs of expanded diced beef of a kind of vacuum refrigeration of the present invention of accompanying drawing.
The processing method of the expanded diced beef of a kind of vacuum refrigeration of the present invention, it comprises the following steps: (1) pretreatment of raw material: fresh beef is cleaned, be cut into the 500-1000g cube meat, cube meat is put into pot boils 30-40min and pulls out, be cut into the square diced beef of 1cm with dicer, can boil infusion by the soup stock that different taste adds different formulations, treat that soup juice boils dry, diced beef is taken out, drained;
(2) raw material of handling well is 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 diced beef;
(3) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good diced beef 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 diced beef, with the variations in temperature of monitoring diced beef; Close Bulking tank door 14, sealing Bulking tank 11; The state of diced beef can be learnt by the peep hole 9 on Bulking tank door 14;
Open refrigeration unit 5, open magnetic valve 4 on condenser tube 6 and the second operated pneumatic valve 7 between cold-trap 3 and Bulking tank 11, refrigeration unit 5 provides low-temperature receiver by 6 pairs of cold-traps 3 of condenser tube and Bulking tank 11, and cold-trap 3 interior temperature are down to-50 ℃;
Open vacuum unit 1, open the first operated pneumatic valve 2 between vacuum unit 1 and cold-trap 3,1 pair of Bulking tank 11 of vacuum unit and cold-trap 3 vacuumize simultaneously, extract non-condensable gas; Keep below Bulking tank 11 internal pressure 100pa beginning vacuum freeze drying process;
ON cycle water pot 20, open water pump 22 and the magnetic valve 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 70-75 ℃, 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 diced beef progressively rises, and during to 5-10 ℃, closes the second operated pneumatic valve 7 until the diced beef temperature, closes refrigeration unit 5;
Adjust heating plate 17 temperature and reach 80-85 ℃, open the magnetic valve that is connected with aseptic air filter 8, inject the aseptic compressed air of steam and impurity after filtration to Bulking tank 11, make Bulking tank 11 pressure recovery normal pressures; Open the second operated pneumatic valve 7, make cold-trap 3 and Bulking tank 11 UNICOMs, utilize the pressure differential between two tanks to carry out expanded; After carrying out 2-3 identical puffing 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 makes the heating plate in Bulking tank 11 be cooled to 60-65 ℃ after upper plate type heat exchanger 21 is cooling; Close the magnetic valve of plate type heat exchanger 21, open the magnetic valve of lower plate type heat exchanger 19, keep the temperature of heating plate 17 at design temperature 60-65 ℃, the beginning process of vacuum drying, the vacuum drying time is 120-150min; Close the magnetic valve of lower plate type heat exchanger 19, the magnetic valve of plate type heat exchanger 21 in unlatching, cooling heating plate 17 temperature to 30 ℃, the solid type process of beginning humidity discharging, consistent with expanded operating process, number of repetition 6-8 time, this process shortens drying time greatly; Continue to cool to room temperature after the solid type of humidity discharging, closing device is opened Bulking tank 11, and is minute grade packaged, obtains the expanded crisp diced beef product of vacuum refrigeration.
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 processing method of the expanded diced beef of vacuum refrigeration, it is characterized in that: comprise the following steps: (1) pretreatment of raw material: fresh beef is cleaned, be cut into the 500-1000g cube meat, cube meat is put into pot boils 30-40min and pulls out, be cut into the square diced beef of 1cm with dicer, can boil infusion by the soup stock that different taste adds different formulations, treat that soup juice boils dry, diced beef is taken out, drained;
(2) raw material of handling well is 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 diced beef;
(3) carry out the vacuum refrigeration explosion puffing drying by the vacuum refrigeration swelling drier:
Through the good diced beef 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 diced beef, with the variations in temperature of monitoring diced beef; Close the Bulking tank door, the sealing Bulking tank; The state of diced beef 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 70-75 ℃, 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 diced beef progressively rises, and during to 5-10 ℃, closes the second operated pneumatic valve until the diced beef temperature, closes refrigeration unit;
Adjust temperature of heating plate and reach 80-85 ℃, open the magnetic valve that is connected with aseptic air filter, inject the aseptic compressed air of steam and impurity after filtration to Bulking tank, make Bulking tank pressure recovery normal pressure; Open the second operated pneumatic valve, make cold-trap and Bulking tank UNICOM, utilize the pressure differential between two tanks to carry out expanded; After carrying out 2-3 identical puffing 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 in Bulking tank be cooled to 60-65 ℃ after upper plate type heat exchanger is cooling; Close the magnetic valve of plate type heat exchanger, open the magnetic valve of lower plate type heat exchanger, keep the temperature of heating plate at design temperature 60-65 ℃, the beginning process of vacuum drying, the vacuum drying time is 120-150min; Close the magnetic valve of lower plate type heat exchanger, the magnetic valve of plate type heat exchanger in unlatching, cooling temperature of heating plate to 30 ℃, the solid type process of beginning humidity discharging, consistent with expanded operating process, number of repetition 6-8 time, this process shortens drying time greatly; Continue to cool to room temperature after the solid type of humidity discharging, closing device is opened Bulking tank, and is minute grade packaged, obtains the expanded crisp diced beef product of vacuum refrigeration.
2. the processing method of the expanded diced beef of a kind of vacuum refrigeration 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 processing method of the expanded diced beef of a kind of vacuum refrigeration 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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| CN104013010A (en) * | 2014-06-27 | 2014-09-03 | 新晃嘉信食品有限公司 | Processing method of puffed beef bean |
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| CN107156690A (en) * | 2017-05-30 | 2017-09-15 | 胡建锋 | It is a kind of to be used for the preparation technology of freeze-dried beef grain in instant food |
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| CN1325640A (en) * | 2000-05-31 | 2001-12-12 | 赵子文 | A dewatered hand-pulled Muslims, noodles with beaf and its production technology |
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