CN102837850A - Metal canned beverage and nitrogen injection sterilization method thereof - Google Patents
Metal canned beverage and nitrogen injection sterilization method thereof Download PDFInfo
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- CN102837850A CN102837850A CN201210320299XA CN201210320299A CN102837850A CN 102837850 A CN102837850 A CN 102837850A CN 201210320299X A CN201210320299X A CN 201210320299XA CN 201210320299 A CN201210320299 A CN 201210320299A CN 102837850 A CN102837850 A CN 102837850A
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Abstract
The invention provides a metal canned beverage and a nitrogen injection sterilization method thereof. The nitrogen injection sterilization method of the metal canned beverage comprises the following steps of: (1) injecting liquid nitrogen into a metal can filled with a hot beverage, and then sealing the metal can; (2) putting the sealed metal can into water sprinkling type sterilization equipment for sterilization, and warming up the beverage in the metal can to a temperature of 105-128 DEG C through the water sprinkling sterilization; controlling the pressure in the water sprinkling type sterilization equipment to be 0.15-0.40MPa by adopting a multi-channel pressure control mode, and maintaining the pressure and the temperature for 8-60 minutes; and (3) after the sterilization is finished, sprinkling the metal can with water for cooling to ensure that the temperature of the beverage in the metal can is reduced to a temperature of 36-45 DEG C, and then reducing the temperature in the sterilization equipment to barometric pressure. The nitrogen injection sterilization method of the metal canned beverage is scientific and reasonable, various defects of the traditional canned beverage sterilization method are overcome, and the advantage of difficult dented cans or bursts of the metal cans are realized.
Description
Technical field
The present invention relates to the drink sterilization technology, relate in particular to a kind of notes nitrogen method for disinfection and metal can dixie cup of metal can dixie cup.
Background technology
Because of metal can has good barrier property, mechanical characteristics, and variation high temperature resistant, moisture resistance, be widely used in the beverage packaging industry.In order to respond the needs that country implements resource-conserving, the environmentally friendly and strategy of sustainable development, research and development and use through attenuated tank make metal can lighter to weight in recent years, and the direction of material Geng Sheng, more environmental protection develops.Beverage metal can behind the attenuate problem flat jar and undercapacity can occur according to traditional high-temperature filling method for disinfection, needs to adopt notes nitrogen technology improve intensity.But after adopt annotating nitrogen and increasing metal can intensity, temperature during high temperature sterilization, pressure control is improper is prone to make metal can (especially metal built-up tin) situation of explosion to occur.So the method for disinfection of beverage is a bottleneck of metal can attenuate development in the metal can.
Summary of the invention
The objective of the invention is to, be prone to when the sterilization flat jar or explosion problem take place, propose a kind of notes nitrogen method for disinfection of metal can dixie cup to above-mentioned attenuate metal can, high to realize intensity, be difficult for taking place flat jar or explosion.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of notes nitrogen method for disinfection of metal can dixie cup comprises the steps:
1), in the metal can that is filled with hot beverage, inject liquid nitrogen, then metal can is sealed;
2), the metal can that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal can be warming up to 105 ℃-128 ℃ through the water spray type sterilization; Adopt multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously, make the metal can external and internal pressure in a basic balance, kept above-mentioned pressure and temperature 8-60 minute;
3), after sterilization finishes,, make that beverage temperature is reduced to 30-50 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
Further, the notes nitrogen method for disinfection of metal can dixie cup comprises the steps:
1), in the metal can that is filled with beverage, inject liquid nitrogen, then metal can is sealed;
2), the metal can that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal can be warming up to 110 ℃-120 ℃ through the water spray type sterilization; Adopt multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously, make the metal can external and internal pressure in a basic balance, kept above-mentioned pressure and temperature 20-40 minute;
3), after sterilization finishes,, make that beverage temperature is reduced to 36-45 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
Further, said metal can is metal two piece can or metal built-up tin.
Further, said metal can tank wall thickness is more than or equal to 0.10mm.
Further, in the metal can that is filled with 60 ℃ of-90 ℃ of hot beverage, inject liquid nitrogen, make that the metal can internal pressure is 0.20-0.25MPa under the normal temperature.
Further, said multi-path pressure control is on the water spray type disinfection equipment, to adopt two above admission lines and two above bleeder lines, makes gas multi-channel turnover in the water spray type disinfection equipment.Multi-path pressure control can realize " coarse adjustment " and " fine tuning " of pressure, realizes accurate pressurising of disinfection equipment or pressure release.
Further, adopt three admission lines and three bleeder lines on the said water spray type disinfection equipment, make gas multi-channel turnover in the water spray type disinfection equipment.
Further, adopting multi-path pressure mode control water spray type disinfection equipment internal pressure is 0.10-0.40MPa.
Further, adopting multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously is 0.20-0.30Mpa.
Another object of the present invention also provides a kind of metal can dixie cup, its metal can good looking appearance; Beverage is when guaranteeing mouthfeel, and bacteria containing amount is also lower.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of metal can dixie cup, adopt the notes nitrogen method for disinfection sterilization of above-mentioned metal can dixie cup to form.
It is to annotate nitrogen amount, temperature, pressure and the equilibrium relation of time through control that metal can dixie cup of the present invention is annotated the nitrogen sterilization, makes tinned drink (the not beverage of carbonated) can not produce jar a shape depression or an explosion, improves the qualification rate of metal can dixie cup.The nitrogen method for disinfection is annotated in mental package of the present invention, and step is simple, science, reasonable, has the following advantages compared with prior art:
1), the present invention adopts multi-path pressure mode control water spray type disinfection equipment internal pressure, pressure control is accurate, the not yielding or explosion of metal can has improved the qualification rate of metal can dixie cup;
2), accuracy control metal can dixie cup sterilization conditions of the present invention, when improving metal can dixie cup qualification rate, the bactericidal effect and the mouthfeel of beverage all are guaranteed;
3) after the sterilization beverage in the metal can is lowered the temperature earlier, the back reduces the pressure in the disinfection equipment, has further reduced the possibility of the generation of metal can explosion.
The specific embodiment
Embodiment 1
Present embodiment discloses a kind of notes nitrogen method for disinfection of metal can dixie cup, is that the metal built-up tin of 0.10mm is an example with the wall thickness that is filled with tea beverage specifically, comprises the steps:
1), in the metal built-up tin that is filled with 60 ℃ of-90 ℃ of hot beverage, inject liquid nitrogen, then metal can is sealed, liquid nitrogen (196 ℃) at room temperature becomes nitrogen and volume expands rapidly, makes that metal built-up tin internal pressure is 0.22MPa under the normal temperature.
2), the metal built-up tin that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal built-up tin be warming up to 123 ℃ through the water spray type sterilization, nitrogen heats after expansion metal can pressure to be increased; Adopting multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously is 0.25MPa, makes the metal can external and internal pressure in a basic balance, keeps above-mentioned pressure and temperature 10 minutes; Multi-path pressure control is on the water spray type disinfection equipment, to adopt three admission lines and three bleeder lines, makes gas multi-channel turnover in disinfection equipment.The water spray type disinfection equipment is conventional canned food high temperature sterilization equipment.
3), after sterilization finishes,, make that beverage temperature is reduced to 45 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
Annotate the size and the desired tank body air pressure that how much depend on the bottom clearance space in the metal can of nitrogen amount in the present embodiment.Usually the plane bottom of metal built-up tin employing is not suitable for Pressure Container; Capping is yielding; Especially after injecting liquid nitrogen, the product internal pressure is a malleation, during high temperature sterilization (105 ~ 128 ℃); The liquid nitrogen gasification after expansion makes the very easily explosion of metal built-up tin, circulation water spray type sterilization in therefore can only adopting.For pressure is carried out accuracy control, present embodiment has adopted multi-path pressure control, makes pressure control more accurate.Multi-path pressure control can realize " coarse adjustment " and " fine tuning " of pressure, realizes accurate pressurising of water spray type disinfection equipment or pressure release.Because of lowering the temperature after the first step-down after the sterilization, can make metal can internal gas Yin Gaowen expansion pressure can be higher than external pressure, the situation of metal can explosion takes place.Sterilization finishes the back to the cooling earlier of beverage in the metal can in the present embodiment, and the back reduces the pressure in the disinfection equipment, effectively reduces or prevents the metal can explosion.
Embodiment 2
The metal two piece can of different with embodiment 1 is present embodiment the adopts wall thickness that is filled with protein beverage or coffee beverage is 0.15mm is an example, may further comprise the steps:
1), in the metal two piece can that is filled with 60 ℃ of-90 ℃ of hot beverage, inject liquid nitrogen, then the metal two piece can is sealed, make that metal two piece can internal pressure is 0.26MPa under the normal temperature.
2), the metal can that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal can be warming up to 121 ℃ through the water spray type sterilization, nitrogen heats after expansion metal can pressure to be increased; Adopting multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously is 0.30MPa, makes the metal can external and internal pressure in a basic balance, keeps above-mentioned pressure and temperature 20 minutes; Multi-path pressure control is on the water spray type disinfection equipment, to adopt two admission lines and two bleeder lines, makes gas multi-channel turnover in disinfection equipment.
3), after sterilization finishes,, make that beverage temperature is reduced to 40 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
Embodiment 3
Present embodiment provides a kind of metal can dixie cup to form through the notes nitrogen method for disinfection sterilization of embodiment 1 or embodiment 2 said metal can dixie cups.The metal can good looking appearance of this metal can dixie cup; The anti-oxidation performance of beverage is good, mouthfeel is good.
What should explain at last is: above each embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. the notes nitrogen method for disinfection of a metal can dixie cup is characterized in that, comprises the steps:
1), in the metal can that is filled with hot beverage, inject liquid nitrogen, then metal can is sealed;
2), the metal can that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal can be warming up to 105 ℃-128 ℃ through the water spray type sterilization; Adopt multi-path pressure mode control water spray type disinfection equipment internal pressure, make the metal can external and internal pressure in a basic balance, kept above-mentioned pressure and temperature 8-60 minute;
3), after sterilization finishes,, make that beverage temperature is reduced to 30-50 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
2. according to the notes nitrogen method for disinfection of the said metal can dixie cup of claim 1, it is characterized in that, comprise the steps:
1), in the metal can that is filled with beverage, inject liquid nitrogen, then metal can is sealed;
2), the metal can that seals is put into the sterilization of water spray type disinfection equipment, make the beverage in the metal can be warming up to 110 ℃-120 ℃ through the water spray type sterilization; Adopt multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously, make the metal can external and internal pressure in a basic balance, kept above-mentioned pressure and temperature 20-40 minute;
3), after sterilization finishes,, make that beverage temperature is reduced to 36-45 ℃ in the metal can, then the disinfection equipment internal pressure is reduced to barometric pressure earlier to the cooling of metal can trickle.
3. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups, it is characterized in that said metal can is metal two piece can or metal built-up tin.
4. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups, it is characterized in that said metal can tank wall thickness is more than or equal to 0.10mm.
5. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups, it is characterized in that, in the metal can that is filled with 60 ℃ of-90 ℃ of hot beverage, inject liquid nitrogen, make that the metal can internal pressure is 0.20-0.25MPa under the normal temperature.
6. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups; It is characterized in that; Said multi-path pressure control is on the water spray type disinfection equipment, to adopt two above admission lines and two above bleeder lines, makes gas multi-channel turnover in the water spray type disinfection equipment.
7. according to the notes nitrogen method for disinfection of the said metal can dixie cup of claim 6, it is characterized in that, adopt three admission lines and three bleeder lines on the said water spray type disinfection equipment, make gas multi-channel turnover in the water spray type disinfection equipment.
8. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups, it is characterized in that adopting multi-path pressure mode control water spray type disinfection equipment internal pressure is 0.15-0.40MPa.
9. according to the notes nitrogen method for disinfection of claim 1 or 2 said metal can dixie cups, it is characterized in that adopting multi-path pressure mode control water spray type disinfection equipment internal pressure simultaneously is 0.20-0.30Mpa.
10. a metal can dixie cup is characterized in that, adopts the notes nitrogen method for disinfection sterilization of any said metal can dixie cup of claim 1-7 to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320299XA CN102837850A (en) | 2012-08-31 | 2012-08-31 | Metal canned beverage and nitrogen injection sterilization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210320299XA CN102837850A (en) | 2012-08-31 | 2012-08-31 | Metal canned beverage and nitrogen injection sterilization method thereof |
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| CN102837850A true CN102837850A (en) | 2012-12-26 |
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| CN201210320299XA Pending CN102837850A (en) | 2012-08-31 | 2012-08-31 | Metal canned beverage and nitrogen injection sterilization method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910814A (en) * | 2018-08-10 | 2018-11-30 | 上海康识食品科技有限公司 | A kind of filling process for sterilizing of two-piece can neutrality milk-contained drink |
Citations (5)
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|---|---|---|---|---|
| GB2089191A (en) * | 1980-12-10 | 1982-06-23 | Toyo Seikan Kaisha Ltd | Method and apparatus for making a hermetically sealed food container |
| US4703609A (en) * | 1982-04-22 | 1987-11-03 | Daiwa Can Company, Limited | Method of manufacturing pressurized sealed containered food |
| US4967538A (en) * | 1988-01-29 | 1990-11-06 | Aluminum Company Of America | Inwardly reformable endwall for a container and a method of packaging a product in the container |
| EP0521642A1 (en) * | 1991-07-04 | 1993-01-07 | CarnaudMetalbox plc | Method of filling a can and can for use therein |
| CN1203558A (en) * | 1995-10-16 | 1998-12-30 | 乔治·B·戴蒙德 | Packaging sterilizable food in thin-walled containers |
-
2012
- 2012-08-31 CN CN201210320299XA patent/CN102837850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2089191A (en) * | 1980-12-10 | 1982-06-23 | Toyo Seikan Kaisha Ltd | Method and apparatus for making a hermetically sealed food container |
| US4703609A (en) * | 1982-04-22 | 1987-11-03 | Daiwa Can Company, Limited | Method of manufacturing pressurized sealed containered food |
| US4967538A (en) * | 1988-01-29 | 1990-11-06 | Aluminum Company Of America | Inwardly reformable endwall for a container and a method of packaging a product in the container |
| EP0521642A1 (en) * | 1991-07-04 | 1993-01-07 | CarnaudMetalbox plc | Method of filling a can and can for use therein |
| CN1203558A (en) * | 1995-10-16 | 1998-12-30 | 乔治·B·戴蒙德 | Packaging sterilizable food in thin-walled containers |
Non-Patent Citations (1)
| Title |
|---|
| 杨波: "薄壁三片罐在饮料行业的应用", 《中国包装工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910814A (en) * | 2018-08-10 | 2018-11-30 | 上海康识食品科技有限公司 | A kind of filling process for sterilizing of two-piece can neutrality milk-contained drink |
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Application publication date: 20121226 |