CN103082334A - Method and system for rapidly producing hard-core preserved duck eggs in semi-continuous mode by vacuum decompression and sponge permeation method - Google Patents
Method and system for rapidly producing hard-core preserved duck eggs in semi-continuous mode by vacuum decompression and sponge permeation method Download PDFInfo
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Abstract
The invention relates to a method for rapidly producing hard-core preserved duck eggs in a semi-continuous mode by a vacuum decompression and sponge permeation method. The method comprises the following steps of: preparing pickling material liquid, putting eggs, spraying the pickling material liquid on the eggs, carrying out vacuum decompression treatment on the eggs, taking out the eggs from a jar, washing the eggs, drying the eggs in air, coating membranes on the eggs, and maturing the eggs so as to obtain the hard-core preserved duck eggs. According to the method, the hard-core preserved duck eggs are rapidly produced by the vacuum decompression and sponge permeation method, air in the duck eggs can be sucked out in a repeated vacuuming mode, and subsequently, due to the pressure difference inside and outside the duck eggs, alkali liquid can rapidly permeate into the eggs in the primary pickling period during the process of rising to a normal pressure, so that the pickling period of the preserved duck eggs is shortened. Compared with a mud coating method, the method enables the eggs to be cleaner and more sanitary, ensures a high mechanization degree and semi-continuous operation, and can effectively improve the production efficiency of the preserved duck eggs; and as the material liquid is leadless, the produced preserved duck eggs are safe and harmless.
Description
Technical field
The invention belongs to technical field of food science, relate to pickling of lime-preserved egg, the method and system of the semicontinuous quick production hard-core lime-preserved egg of especially a kind of vacuum decompression sponge osmosis.
Background technology
Lime-preserved egg claims again lime-preserved egg, a kink of preserved egg, also some places unite two into one and are called " "Thousand year old" duck eggs ", every feed liquid or material mud that is made into through material such as alkali, quick lime and salt, tea, water for raw material with FRESH DUCK EGGS and other birds, beasts and eggs (egg, goose egg etc.), the egg that processes general designation lime-preserved egg.Lime-preserved egg mainly contains two kinds of soft yolk (capital painted eggshell) and hard-cores (lake painted eggshell), egg with a soft yolk generally adopts the feed liquid infusion method, and the hard-core lime-preserved egg generally adopts bag mud method, and namely directly the materials mud drum is wrapped up in bright egg, fill again cylinder, sealing after rolling rice husk, until the ripe rear method that stores.
Traditional lime-preserved egg method for salting, its salting period shared time in whole processing technology is longer, and equipment is simple, the production cycle is long, efficient is low, affects Business Economic Benefit.Over nearly twenties years, domestic scholars has been carried out a large amount of research to lime-preserved egg processing technology, lead-free technology, and undoubtedly, these effort have been played important function to the science production that promotes lime-preserved egg.The cloth bag legal system made from cotton that has is made lime-preserved egg, also has the paper using film to soak bag egg legal system and makes lime-preserved egg, has all obtained certain effect.But, at present in actual production, can not yet be developed than the technology of short period semi-continuous production hard-core lime-preserved egg side, this has become and has hindered the further bottleneck of innovation lime-preserved egg process technology.
The semicontinuous quick production technology of vacuum decompression method is applied in the production and processing of candied fruit as one of food processing new technology.The vacuum decompression technology is in the application of candied fruit processing, and there is not large quantity of air in raw material boiling under vacuum and lower temperature in organizing, and sugar can penetrate into rapidly the fruits and vegetables organization internal and reach balance, has effectively shortened its process.Temperature is low, and the time is short, and goods color, shape are all good than normal pressure boiling.
By retrieval, find one piece of following patent publication us relevant to present patent application:
A kind of method of quick cure lead-free preserved egg (CN102018233A), a kind of method that relates to quick cure lead-free preserved egg, the method that adopts decompression to pickle when lime-preserved egg is pickled, its curing container internal vacuum is-0.05MPa～-0.1MPa, pickled 5-10 days, the method of smearing paraffin after described lime-preserved egg is pickled is: preparation contains the atoleine of 20g/L～50g/L vaseline as the plastics of lime-preserved egg, lime-preserved egg is immersed after 3s～5s with taking out the end of filming.The present invention is when the pickling of lime-preserved egg, with the curing container decompression vacuum pumping, the feed liquid that suction prepares, the raw material egg is soaked under vacuum condition, vacuum condition strengthens pickles the osmotic pressure of feed liquid, simultaneously negative pressure can be fast, Transmit evenly arrives the various piece of whole curing container, be not subjected to the restriction of duck's egg shape, volume, originally the mode of pickling has been accelerated the seepage velocity of feed liquid to duck's egg, make duck's egg go out cylinder time shorten to 6 day, maturation time shortens to 25 days, has greatly shortened the production cycle of lime-preserved egg.
Through technical comparison, this patent is to adopt vacuum decompression sponge osmosis semi-continuous production line to pickle, the method adopts the sponge osmosis first, wrap that the mud method cleans more, practicality, the sponge egg rack can Reusability, and this production line is semicontinuous, efficient is high, can advance fast greatly the lime-preserved egg production operation, has more different with the foregoing invention application.
Summary of the invention
The object of the present invention is to provide the method and system of the semicontinuous quick production hard-core lime-preserved egg of a kind of vacuum decompression sponge osmosis, the method utilizes the semi-continuous production line to pickle, its cycle of pickling significantly shortens, can advance greatly fast lime-preserved egg production, be suitable for factory's streamline production operation.
The present invention realizes that the technical scheme of purpose is:
The method of the semicontinuous quick production hard-core lime-preserved egg of a kind of vacuum decompression sponge osmosis, concrete steps are as follows:
⑴ select materials: select clean after birds, beasts and eggs, drying;
⑵ feed liquid is pickled in preparation: black tea is last, Japanese arborvitae leaf adds water boil, and then elimination tealeaves and Japanese arborvitae branch add NaOH, NaCl, CuSO
4, the mixture of natrium citricum or NaOH, NaCl, CuSO
4, ZnSO
4, natrium citricum mixture, stirring and dissolving is dried in the air to room temperature, must pickle feed liquid;
⑶ put: make groove on corrosion resistant sponge, will put into the sponge groove through cleaning, dried birds, beasts and eggs in step ⑴;
⑷ spray is pickled feed liquid: the sponge that will be placed with birds, beasts and eggs is placed on dividing plate with holes, pickle feed liquid to all sponges in spray step ⑵ and all soak under the condition of sealing, and feed liquid when surpassing dividing plate 1 ~ 3cm with holes till;
⑸ vacuum decompression is processed: regulating the temperature of pickling feed liquid in vacuum chamber is 20 ~ 25 ℃, and keeps, slowly be evacuated to-0.05 ~-0.07MPa, processed 0.5 ~ 1.5 hour, then slowly boost to normal pressure, flooded under normal pressure 0.5 ~ 1.5 hour; Continue slowly to vacuumize, vacuum is increased to-0.07 ~-0.09 MPa, processed 0.5 ~ 1.5 hour, then slowly boost to normal pressure, and flood 0.5 ~ 1.5 hour under normal pressure after, continue to vacuumize, vacuum is increased to-0.09 ~-0.10 MPa, processes 0.5 ~ 1.5 hour, then slowly boost to normal pressure, after flooding 0.5 ~ 1.5 hour again under normal pressure, after the aforesaid operations program is completed, then carry out twice repetition, after repeating so altogether 3 times, keep vacuum-0.09 ~-0.10 MPa, kept this vacuum every day 20 ~ 24 hours, pickled 5 ~ 7 days;
⑹ go out cylinder, cleaning, air-dry: egg white solidifies bright and clean, sticking shell, is sepia in birds, beasts and eggs, and yolk is yellow green, when all solidifying, clean, air-dry, film, namely get the hard-core lime-preserved egg after maturation.
And, black tea end in described step ⑵: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: natrium citricum: the mass ratio of water is 2 ~ 3:2 ~ 3:5 ~ 6:4.5 ~ 5.5:0.3 ~ 0.5:0.1 ~ 0.2:100.
And, black tea end in described step ⑵: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: ZnSO
4: natrium citricum: the mass ratio of water is 2.5 ~ 3.5:2.5 ~ 3.5:5 ~ 6:4.5 ~ 5.5:0.1 ~ 0.3:0.1 ~ 0.3:0.1 ~ 0.2:100.
And in described step ⑹, the hard-core lime-preserved egg also passes through following processing:
The polishing, cooling of filming: the hard-core lime-preserved egg after air-dry is by after filming in plastics, through polishing, cooling;
Packing, after-ripening: cooling hard-core lime-preserved egg in 18 ℃ ~ 23 ℃ after-ripening 10～25 days, is namely got hard-core lime-preserved egg product.
And described plastics is the atoleine that contains 50g/L vaseline.
The system of production hard-core lime-preserved egg as above, comprise the decompression curing system, clean Hoisting System, air-dry transfer system, coating system, polishing system and quenching system, the output of decompression curing system is connected with the input that cleans Hoisting System, the output that cleans Hoisting System is connected with the input of air-dry transfer system, the output of air-dry transfer system is connected with the input of coating system, the output of coating system is connected with the input of polishing system, and the output of polishing system is connected with the quenching system.
and, described decompression curing system comprise decompression salting apparatus, vacuum plant and and hang and use track, described hanging with the input of track with the decompression salting apparatus is connected, and the decompression salting apparatus is connected with vacuum plant, described vacuum plant comprises vavuum pump, vacuum tank and vacuum pipe, and vavuum pump is connected with an end of vacuum tank, and the other end of vacuum tank is connected with vacuum pipe, described decompression salting apparatus comprises that liftable decompression pickles case lid, casing is pickled in decompression, pickle the feed liquid shower nozzle, pickle the feed liquid circulating pump, dividing plate with holes and sponge egg rack, described liftable decompression is pickled case lid and is dynamically connected with the opening movable of pickling casing that reduces pressure, the described feed liquid shower nozzle of pickling is installed on liftable decompression and pickles the case lid medial surface, a dividing plate with holes is installed in the middle and lower part that described decompression is pickled in casing, the sponge egg rack is installed on above dividing plate with holes, decompression is pickled the outer connection one of casing and is pickled the feed liquid circulating pump, pickle the other end of feed liquid circulating pump and pickle the feed liquid nozzle connecting and connect.
And the quantity of described decompression salting apparatus is 9 to 30.
And the quantity of described sponge egg rack is 4 to 8.
Advantage of the present invention and good effect are:
1, the inventive method adopts the sponge osmosis to pickle lime-preserved egg first, the method is different from again cloth bag method and paper film bag egg method, it first makes some grooves on sponge, egg is put into, thereby then adsorb feed liquid by sponge and reach the effect that lime-preserved egg is pickled in immersion, cleaning, practicality more, but and the sponge egg rack through Reusability after cleaning.
2, the inventive method adopts vacuum decompression method semi-continuous production line to pickle lime-preserved egg, the air that can make in duck's egg that vacuumizes is repeatedly extracted out, then in rising to the process of normal pressure, due to the pressure differential inside and outside egg, can alkali lye be penetrated in egg fast at the initial stage of pickling, thus reduce product go out the cylinder qualification rate.The method has shortened the production cycle of lime-preserved egg largely, and the traditional pickling process time was shortened to about 6 days by 25 ~ 30 days; This method mechanization degree is high, operates the energy serialization, can effectively improve the production efficiency of lime-preserved egg, reduces labour's use.
3, the inventive method adopts unleaded feed liquid to make lime-preserved egg, then adopt film polishing technology to its film, after-ripening, the lime-preserved egg of preparing has better color and luster local flavor, nutrition is complete, cleaning is clean.
4, the inventive method has been improved traditional lime-preserved egg processing technology, vacuum decompression is pickled box house dividing plate with holes, and feed liquid is in higher concentration alkali lye duck's egg on every side by spray and capillary action all the time, so the alkali lye infiltration rapidly, can form fast the hard-core lime-preserved egg; It is exactly to utilize pressure differential to promote the diffusion of solution and the character of infiltration that lime-preserved egg is pickled in decompression, the materials such as alkali lye in feed liquid, metal ion is infiltrated in egg white and yolk by eggshell and egg film, thereby be processed into the egg processed again that taste enriches.In process of osmosis, gas in egg is maximum obstacle, it has hindered the infiltration of pickling liquid molecule, and decompression vacuum pumping can be extracted the portion gas in birds, beasts and eggs out, can greatly improve the feed liquid seepage velocity, the production cycle of lime-preserved egg is shortened, improve production efficiency, be suitable for enterprise and use on a large scale, improved the economic benefit of enterprise.
5, system of the present invention is suitable for factory's streamline production, can reduce the labour; Pickle case and be in sealing state due to decompression, can avoid alkali gas to the stimulation of workman's respiratory tract, this will to China for many years the production technology of lime-preserved egg bring huge innovation.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is the enlarged drawing of decompression curing system in Fig. 1;
Fig. 3 is the enlarged drawing of vacuum plant in Fig. 1;
Fig. 4 is the structural representation of sponge egg rack in Fig. 1.
The specific embodiment
The below is described in detail embodiments of the invention, need to prove, the present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
The principle of the inventive method is: at first the sponge osmosis makes some grooves on sponge, and egg is put into, and reaches thereby then adsorb feed liquid by sponge the effect that lime-preserved egg is pickled in immersion.
Embodiment 1:
The method of the semicontinuous quick production hard-core lime-preserved egg of a kind of vacuum decompression sponge osmosis, its concrete steps are as follows:
⑴ select materials: strictly select fresh duck's egg, reject the bad eggs such as breakage, crackle, oilcan, box hat, select cold water or disinfectant, after cleaning with egg cleaner, dry or dry dry;
⑵ pickle the basic preparation of feed liquid: black tea end, Japanese arborvitae leaf were continued to boil 10 minutes after adding water boil, and elimination tealeaves and Japanese arborvitae branch, to be cooled to approximately adding a certain amount of NaOH, NaCl, CuSO after 40 ℃
4, natrium citricum, fully stir and make its all dissolving and constant volumes, will pickle feed liquid and dry in the air stand-by to room temperature;
After constant volume, black tea is last: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: natrium citricum: the mass ratio of water is 2.5:2.5:5.5:5:0.4:0.15:100.
In this step, the speed of pickling the feed liquid seepage velocity is relevant with the concentration of feed liquid, in general, pickles feed concentration higher, and diffusion is faster with seepage velocity, in addition, pickles that in feed liquid, other composition also has important impact to the seepage velocity of pickling feed liquid.Therefore, rationally determine formula, strengthen pickling the Detection and adjustment of feed concentration, on the important impact that is being formed with of the infiltration of pickling feed liquid and lime-preserved egg;
⑶ put: make the sponge egg rack that groove gets on corrosion resistant sponge, to put on corrosion resistant sponge egg rack through cleaning, dried duck's egg in step ⑴, the egg body keeps flat, then multilayer sponge egg rack is piled up, then put it in the stainless steel egg rack, with top wing nut, baffle plate and the lid of surrounding are tightened, incubator tray is fixed;
⑷ spray is pickled feed liquid: then hangs by egg rack and sends into decompression with track and pickle on dividing plate with holes in casing, carry out material spray from the casing top with the feed liquid shower nozzle, until all sponges all soak, and till when pickling feed liquid over dividing plate 2cm with holes at the bottom of case;
⑸ the semicontinuous quick production of vacuum decompression is processed: regulating the temperature of pickling feed liquid in vacuum chamber is 20 ~ 25 ℃, be evacuated to slowly-0.06 MPa, processed 1 hour, then slowly boost to normal pressure, this process is according to predefined program, regulated by the automatic vacuum electromagnetic valve for adjusting, then flooded 1 hour under normal pressure; Continue slowly to vacuumize, vacuum is increased to-0.08 MPa, processes with this understanding 1 hour, then slowly boost to normal pressure, and dipping after 1 hour, continues to vacuumize under normal pressure, vacuum is increased to-0.10 MPa, processes with this understanding 1 hour, then slowly boosts to normal pressure, dipping after 1 hour, after the aforesaid operations program is completed, then carries out twice repetition under normal pressure again, after repeating so altogether 3 times, keep vacuum-0.10 MPa, kept this vacuum every day 20 ~ 24 hours, pickled 6 days;
In this step, the semicontinuous equipment of vacuum decompression method will have sealing and certain volume preferably, and pressure maintaining performance will be got well, and have corrosion resistance; At the initial stage of pickling, alkali lye is penetrated in egg fast, whole vacuumize decompression and recover all slowly carry out in the process of normal pressure, can avoid like this duck's egg because changing the poor breakage that causes of too fast external and internal pressure;
⑹ go out cylinder, cleaning, air-dry: until about the 6th day, in egg, egg white solidifies bright and clean, not sticking shell, be sepia, when yolk was yellow green and all solidifies, the lime-preserved egg that manually will pickle was put into and is cleaned lifting device and clean, and washes out the raffinate on eggshell, after having cleaned, be sent to the enterprising sector-style of air-dry conveyer belt and do;
⑺ the polishing, cooling of filming: the lime-preserved egg after air-dry carries out quality inspection, reject broken egg and addled egg, then by conveyer belt by filming in the atoleine plastics that contains 50g/L vaseline, carry out polishing by burnishing device after filming, then carry out cooling through cold wind blower;
⑻ packing, after-ripening: the lime-preserved egg that will film is packed in plastics package, is placed in the storehouse of 18 ℃ ~ 23 ℃, is stored in shady and cool dry place's after-ripening, namely gets the hard-core lime-preserved egg.
Embodiment 2:
The method of the semicontinuous quick production hard-core lime-preserved egg of a kind of vacuum decompression sponge osmosis, its concrete steps are as follows:
⑴ select materials: strictly select fresh duck's egg, reject the bad eggs such as breakage, crackle, oilcan, box hat, with cold water or disinfectant, clean, dry or blow air-dry with egg cleaner;
⑵ pickle the basic preparation of feed liquid: black tea end, Japanese arborvitae leaf were continued to boil 10 minutes after adding water boil, and elimination tealeaves and Japanese arborvitae branch to be cooledly add a certain amount of NaOH, NaCl, CuSO to 40 ℃ of left and right
4, natrium citricum and ZnSO
4Mixture, fully stir and make its all dissolving and constant volumes, will pickle feed liquid and dry in the air stand-by to room temperature;
After constant volume, black tea is last: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: ZnSO
4: natrium citricum: the mass ratio of water is 3:3:5.5:5:0.2:0.2:0.15:100;
⑶ put: make the sponge egg rack that groove gets on corrosion resistant sponge, to put on corrosion resistant sponge egg rack through cleaning, dried duck's egg in step ⑴, the egg body keeps flat, then multilayer sponge egg rack is piled up, then put it in the stainless steel egg rack, with top wing nut, baffle plate and the lid of surrounding are tightened, incubator tray is fixed;
⑷ spray is pickled feed liquid: then hangs by egg rack and sends into decompression with track and pickle on dividing plate with holes in casing, carry out material spray from the casing top with the feed liquid shower nozzle, until all sponges all soak, and till when pickling feed liquid over dividing plate 2cm with holes at the bottom of case;
⑸ the semicontinuous quick production of vacuum decompression is processed: regulating the temperature of pickling feed liquid in vacuum chamber is 20 ~ 25 ℃, be evacuated to slowly-0.06 MPa, processed 1 hour, then slowly boost to normal pressure, this process is according to predefined program, regulated by the automatic vacuum electromagnetic valve for adjusting, then flooded 1 hour under normal pressure; Continue slowly to vacuumize, vacuum is increased to-0.08 MPa, processes with this understanding 1 hour, then slowly boost to normal pressure, and dipping after 1 hour, continues to vacuumize under normal pressure, vacuum is increased to-0.10 MPa, processes with this understanding 1 hour, then slowly boosts to normal pressure, flood after 1 hour under normal pressure again, after the aforesaid operations program is completed, then carry out twice repetition, after repeating so altogether 3 times, keep vacuum-0.10 MPa, kept this vacuum every day 20 ~ 24 hours.At the initial stage of pickling, alkali lye is penetrated in egg fast, whole vacuumize decompression and recover all slowly carry out in the process of normal pressure, can avoid like this duck's egg because of the too fast breakage that causes of the poor variation of external and internal pressure.Then keep vacuum-0.10 MPa, kept every day 20～24 hours, pickled 6 days;
⑹ go out cylinder, cleaning, air-dry: until about the 6th day, the interior egg white of egg solidifies bright and clean, and sticking shell, be sepia, when yolk was yellow green, the lime-preserved egg that manually will pickle was put into the cleaning lifting device and is cleaned, wash out the raffinate on eggshell, after having cleaned, be sent to the enterprising sector-style of air-dry conveyer belt and do;
⑺ the polishing, cooling of filming: the lime-preserved egg after air-dry carries out quality inspection, reject broken egg and addled egg, then filmed in the plastics of the atoleine by containing 50g/L vaseline by conveyer belt, carry out polishing by burnishing device after filming, then carry out cooling through cold wind blower;
⑻ packing, after-ripening: the lime-preserved egg that will film is packed in plastics package, be placed in 18 ℃ ~ 23 ℃ storehouse in, be stored in shady and cool dry place's after-ripening, namely get the hard-core lime-preserved egg.
Other are not chatted part and are same as embodiment 1.
The quality index testing result of preparation-obtained hard-core lime-preserved egg is:
Yield rate 〉=96%, sticking shell rate≤2%, egg white is dark brown, the preserved egg pattern is arranged on egg white, and yolk surrounds yellow green outward, and yolk is curdled appearance (hard-core), contain the distinctive strong fragrance of lime-preserved egg, protein content 〉=147.0 mg/g, fat≤108.0 mg/g, moisture≤683.0 mg/g, ash content≤23.5 mg/g, carbohydrate≤58.0 mg/g, heat≤182.0 kJ/g, cholesterol≤5.5 mg/g.
the system of the semicontinuous quick production hard-core lime-preserved egg of a kind of vacuum decompression sponge osmosis, comprise decompression curing system 1, clean Hoisting System 2, air-dry transfer system 3, coating system 4, polishing system 5 and quenching system 6, the output of decompression curing system is connected with the input that cleans Hoisting System, the output that cleans Hoisting System is connected with the input of air-dry transfer system, the output of air-dry transfer system is connected with the input of coating system, the output of coating system is connected with the input of polishing system, the output of polishing system is connected with the quenching system, the packing of finished product can be carried out in the workbench (not shown),
Wherein, the decompression curing system comprises decompression salting apparatus 11, vacuum plant and hangs with track 10, and referring to Fig. 1, described hanging with the input of track with the decompression salting apparatus is connected, and the salting apparatus that reduces pressure is connected with vacuum plant; Described vacuum plant comprises vavuum pump 7, vacuum tank 8 and vacuum pipe 9, and vavuum pump is connected with an end of vacuum tank, and the other end of vacuum tank is connected with vacuum pipe.
described decompression salting apparatus comprises that liftable decompression pickles case lid 12, casing 15 is pickled in decompression, pickle feed liquid shower nozzle 13, pickle feed liquid circulating pump 17, dividing plate 16 with holes and sponge egg rack 14, referring to Fig. 3, described liftable decompression is pickled case lid and is dynamically connected with the opening movable of pickling casing that reduces pressure, the described feed liquid shower nozzle of pickling is installed on liftable decompression and pickles the case lid medial surface, a dividing plate with holes is installed in the middle and lower part that described decompression is pickled in casing, the sponge egg rack is installed on above dividing plate with holes, decompression is pickled the outer connection one of casing and is pickled the feed liquid circulating pump, pickle the other end of feed liquid circulating pump and pickle the feed liquid nozzle connecting and connect.
Wherein, described sponge egg rack is corrosion resistant sponge 18 upper and lower to be made a plurality of grooves 19 obtain, and referring to Fig. 4, also 4 to 8 independent sponge egg racks can be piled up into use, the quantity of decompression salting apparatus can be 9 to 30, shown in the present embodiment accompanying drawing is 9.
Claims (9)
1. the method for the semicontinuous quick production hard-core lime-preserved egg of vacuum decompression sponge osmosis, it is characterized in that: concrete steps are as follows:
⑴ select materials: select clean after birds, beasts and eggs, drying;
⑵ feed liquid is pickled in preparation: black tea is last, Japanese arborvitae leaf adds water boil, and then elimination tealeaves and Japanese arborvitae branch add NaOH, NaCl, CuSO
4, the mixture of natrium citricum or NaOH, NaCl, CuSO
4, ZnSO
4, natrium citricum mixture, stirring and dissolving is dried in the air to room temperature, must pickle feed liquid;
⑶ put: make groove on corrosion resistant sponge, will put into the sponge groove through cleaning, dried birds, beasts and eggs in step ⑴;
⑷ spray is pickled feed liquid: the sponge that will be placed with birds, beasts and eggs is placed on dividing plate with holes, pickle feed liquid to all sponges in spray step ⑵ and all soak under the condition of sealing, and feed liquid when surpassing dividing plate 1 ~ 3cm with holes till;
⑸ vacuum decompression is processed: regulating the temperature of pickling feed liquid in vacuum chamber is 20 ~ 25 ℃, and keeps, slowly be evacuated to-0.05 ~-0.07MPa, processed 0.5 ~ 1.5 hour, then slowly boost to normal pressure, flooded under normal pressure 0.5 ~ 1.5 hour; Continue slowly to vacuumize, vacuum is increased to-0.07 ~-0.09 MPa, processed 0.5 ~ 1.5 hour, then slowly boost to normal pressure, and flood 0.5 ~ 1.5 hour under normal pressure after, continue to vacuumize, vacuum is increased to-0.09 ~-0.10 MPa, processes 0.5 ~ 1.5 hour, then slowly boost to normal pressure, after flooding 0.5 ~ 1.5 hour again under normal pressure, after the aforesaid operations program is completed, then carry out twice repetition, after repeating so altogether 3 times, keep vacuum-0.09 ~-0.10 MPa, kept this vacuum every day 20 ~ 24 hours, pickled 5 ~ 7 days;
⑹ go out cylinder, cleaning, air-dry: egg white solidifies bright and clean, sticking shell, is sepia in birds, beasts and eggs, and yolk is yellow green, when all solidifying, clean, air-dry, film, namely get the hard-core lime-preserved egg after maturation.
2. the method for the semicontinuous quick production hard-core lime-preserved egg of vacuum decompression sponge osmosis according to claim 1, is characterized in that: black tea end in described step ⑵: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: natrium citricum: the mass ratio of water is 2 ~ 3:2 ~ 3:5 ~ 6:4.5 ~ 5.5:0.3 ~ 0.5:0.1 ~ 0.2:100.
3. the method for the semicontinuous quick production hard-core lime-preserved egg of vacuum decompression sponge osmosis according to claim 1, is characterized in that: black tea end in described step ⑵: Japanese arborvitae leaf: NaOH: NaCl:CuSO
4: ZnSO
4: natrium citricum: the mass ratio of water is 2.5 ~ 3.5:2.5 ~ 3.5:5 ~ 6:4.5 ~ 5.5:0.1 ~ 0.3:0.1 ~ 0.3:0.1 ~ 0.2:100.
4. the method for the semicontinuous quick production hard-core lime-preserved egg of vacuum decompression sponge osmosis according to claim 1, it is characterized in that: in described step ⑹, the hard-core lime-preserved egg also passes through following processing:
The polishing, cooling of filming: the hard-core lime-preserved egg after air-dry is by after filming in plastics, through polishing, cooling;
Packing, after-ripening: cooling hard-core lime-preserved egg in 18 ℃ ~ 23 ℃ after-ripening 10～25 days, is namely got hard-core lime-preserved egg product.
5. the method for the semicontinuous quick production hard-core lime-preserved egg of vacuum decompression sponge osmosis according to claim 4, it is characterized in that: described plastics is the atoleine that contains 50g/L vaseline.
6. the system of a production hard-core lime-preserved egg as described in claim 1 to 5 any one, it is characterized in that: comprise the decompression curing system, clean Hoisting System, air-dry transfer system, coating system, polishing system and quenching system, the output of decompression curing system is connected with the input that cleans Hoisting System, the output that cleans Hoisting System is connected with the input of air-dry transfer system, the output of air-dry transfer system is connected with the input of coating system, the output of coating system is connected with the input of polishing system, the output of polishing system is connected with the quenching system.
7. the system of production hard-core lime-preserved egg according to claim 6 is characterized in that: described decompression curing system comprise decompression salting apparatus, vacuum plant and and hang and use track, described hanging with the input of track with the decompression salting apparatus is connected, and the decompression salting apparatus is connected with vacuum plant, described vacuum plant comprises vavuum pump, vacuum tank and vacuum pipe, and vavuum pump is connected with an end of vacuum tank, and the other end of vacuum tank is connected with vacuum pipe, described decompression salting apparatus comprises that liftable decompression pickles case lid, casing is pickled in decompression, pickle the feed liquid shower nozzle, pickle the feed liquid circulating pump, dividing plate with holes and sponge egg rack, described liftable decompression is pickled case lid and is dynamically connected with the opening movable of pickling casing that reduces pressure, the described feed liquid shower nozzle of pickling is installed on liftable decompression and pickles the case lid medial surface, a dividing plate with holes is installed in the middle and lower part that described decompression is pickled in casing, the sponge egg rack is installed on above dividing plate with holes, decompression is pickled the outer connection one of casing and is pickled the feed liquid circulating pump, pickle the other end of feed liquid circulating pump and pickle the feed liquid nozzle connecting and connect.
8. the system of production hard-core lime-preserved egg according to claim 6, it is characterized in that: the quantity of described decompression salting apparatus is 9 to 30.
9. the system of production hard-core lime-preserved egg according to claim 6, it is characterized in that: the quantity of described sponge egg rack is 4 to 8.
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