CN112450351A - Liquid spiral tube microwave sterilization equipment and sterilization method using same - Google Patents
Liquid spiral tube microwave sterilization equipment and sterilization method using same Download PDFInfo
- Publication number
- CN112450351A CN112450351A CN202011558943.8A CN202011558943A CN112450351A CN 112450351 A CN112450351 A CN 112450351A CN 202011558943 A CN202011558943 A CN 202011558943A CN 112450351 A CN112450351 A CN 112450351A
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- microwave
- sterilization
- liquid
- spiral tube
- heat exchanger
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 101
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 92
- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000002994 raw material Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 7
- 238000004537 pulping Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000002241 glass-ceramic Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 238000009928 pasteurization Methods 0.000 description 5
- 239000011344 liquid material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 1
- 206010033546 Pallor Diseases 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
- A23L3/01—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment using microwaves or dielectric heating
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- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention discloses a liquid spiral tube microwave sterilization device and a sterilization method using the device, wherein the sterilization device comprises a material conveying unit and a microwave unit; the material conveying unit comprises a sterilization tank, a sterilization cavity is formed in the sterilization tank, a material inlet and a material outlet are formed in one side of the sterilization cavity, a material conveying pipe is fixedly connected in the sterilization cavity, the material conveying pipe is arranged in the sterilization cavity in a spiral structure, the microwave unit comprises a first microwave unit group and a second microwave unit group, the first microwave unit group is fixedly connected to the side wall surface of the sterilization tank, and the second microwave unit group is fixedly connected to the upper surface of the sterilization tank and is located at a position where the spiral pipe is perpendicular to the central line.
Description
Technical Field
The invention relates to the technical field of microwave sterilization, in particular to a liquid spiral tube microwave sterilization device and a sterilization method using the device.
Background
The food is very easy to pollute and deteriorate in the processes of production, storage, transportation and sale. The conventional technologies such as high temperature, drying, blanching, pasteurization, freezing, preservative and the like can be generally adopted to realize the insecticidal sterilization and the fresh keeping of the food, but the original flavor and the nutrient content of the food are often influenced.
For example, in patent publication No. CN109363061A, a pasteurization system and method is disclosed, which comprises a pasteurization machine including a pasteurization machine internal heat exchanger and a cooler; the heat exchanger in the pasteurizing machine heats the input material to be sterilized and outputs the sterilized material; the cooler cools the sterilized material output by the heat exchanger inside the pasteurizer and outputs the cooled material to the filling equipment, but the pasteurizing has common liquid sterilizing effect and complicated process, for example, in the patent with publication number of CN102150921A, an integral continuous high-temperature water bath sterilizing device is disclosed, which comprises an integral box body and a circulating conveying mesh belt, the circulating conveying mesh belt is arranged inside the integral box body and is driven to operate by a power device, the integral box body comprises a feeding section, a sterilizing section and a discharging section, a straight barrel beam is arranged inside each section, the water bath sterilizing easily causes the color and taste of the liquid and the loss of nutrient components, and affects the integral quality of the liquid, for example, in the patent with publication number of CN107252030A, a microwave sterilizing system is disclosed, which comprises a microwave sterilizing device which is arranged in sequence and is used for performing microwave sterilization on the product, Carry out ultraviolet sterilization's ultraviolet sterilization device, carry out sealed closing device to the product, still including the conveyer belt that is used for carrying the product, the conveyer belt runs through microwave sterilizing equipment and closing device, ultraviolet sterilization device, closing device all are located microwave sterilizing equipment's export, however microwave sterilization is the same with traditional sterilization method, only can disinfect to solid-state raw materials, need pack the packing when disinfecting to liquid and just can go on, and the process is loaded down with trivial details, wastes time and energy.
Disclosure of Invention
The invention aims to solve the problems and discloses liquid spiral tube microwave sterilization equipment and a sterilization method applying the equipment.
The technical scheme of the invention is that the liquid spiral tube microwave sterilization equipment comprises a material conveying unit and a microwave unit;
the material conveying unit comprises a sterilization tank, a sterilization cavity is formed in the sterilization tank, a material inlet and a material outlet are formed in one side of the sterilization cavity, a material conveying pipe is fixedly connected in the sterilization cavity and comprises a material inlet side and a material outlet side, the material inlet side and the material outlet side are respectively connected with the material inlet and the material outlet, and the material conveying pipe is arranged in a spiral structure in the sterilization cavity and forms a pair of spiral pipes;
the microwave unit comprises a first microwave unit group and a second microwave unit group, the first microwave unit group is fixedly connected to the inner side wall surface of the sterilization tank, and the second microwave unit group is fixedly connected to the inner upper surface of the sterilization tank and is located at a pair of positions of the vertical center lines of the spiral pipes.
Preferably, the first microwave unit group comprises a plurality of first microwave generators, and the first microwave generators are uniformly and fixedly connected to the inner side wall surface of the sterilization tank.
Preferably, the second microwave unit group comprises a plurality of second microwave generators, and the second microwave generators are in a circular structure and fixedly connected to a pair of positions of the spiral pipes perpendicular to the center line.
Preferably, the material conveying pipe is made of tetrafluoroethylene, glass fiber reinforced plastic and a ceramic pipe.
Preferably, the first microwave generator and the second microwave generator are electrically connected with a power supply device through a circuit board and an electric wire.
In order to achieve the above object, the present invention also provides a sterilization method using the apparatus, the sterilization method comprising the steps of:
s1: conveying the raw materials to pulping equipment for pulping;
s2: conveying the pulped liquid raw materials to a blending tank through a pump for blending;
s3: conveying the liquid raw materials to a liquid spiral tube microwave sterilization device through a pump for microwave sterilization, wherein the microwave radiation temperature in the microwave sterilization process can be adjusted to be 50-120 ℃, the microwave treatment time is 10-40 min, and the microwave power is 45 KW;
s4: conveying the liquid raw material into a heat exchanger through a pump, wherein the temperature of the liquid raw material in the heat exchanger is reduced to 5 ℃;
s5: and conveying the liquid raw materials into a material storage tank through a pump.
Preferably, the heat exchanger is a tubular heat exchanger or a plate heat exchanger.
Preferably, the feed inlet is communicated with the blending tank through a pump, and the discharge outlet is connected with the heat exchanger through a pump.
The liquid spiral tube microwave sterilization equipment manufactured by the technical scheme of the invention and the sterilization method using the equipment have the following beneficial effects:
1. compared with the traditional pasteurization, the liquid spiral tube microwave sterilization equipment and the sterilization method using the equipment have the advantages that the sterilization temperature is high in rising speed and low in sterilization temperature, the sterilization principle has a non-thermal effect besides a thermal effect, namely, microbial cells are damaged and cannot grow and propagate normally depending on the penetrating capacity of microwaves, a good sterilization effect is achieved, in addition, the color and the taste of a finished product can be guaranteed, and the loss of nutritional ingredients can be reduced;
2. the liquid spiral tube microwave sterilization equipment and the sterilization method using the equipment provided by the invention adopt the spiral tube structure, can increase the flowing time of liquid in the sterilization cavity, increase the flowing stroke of the liquid in the sterilization cavity, and enable the sterilization process to be more thorough, thereby improving the sterilization efficiency;
3. the application of the microwave in the food industry is 2450MHz and 915MHz, and the liquid spiral tube microwave sterilization equipment and the sterilization method using the equipment adopt 2450MHz, so that the processing cost can be saved, and the equipment is more suitable for quickly heating and raising the temperature of liquid;
4. the liquid can be sterilized in a spiral flowing mode in the pipeline, so that the sterilization effect can be ensured, and the sterilization rate is improved.
Drawings
FIG. 1 is a top view of the spiral tube microwave sterilization device of the present invention;
FIG. 2 is a flow chart of the present invention of a method for microwave sterilization in a spiral tube.
1-sterilizing the tank; 2-a sterilization cavity; 3-a feed inlet; 4-a discharge hole; 5-a material conveying pipe; 6-a spiral pipe; 7-a first microwave unit group; 8-a second microwave unit group; 9-a first microwave generator; 10-second microwave generator.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1: the sterilization method comprises the following steps: conveying the raw materials to pulping equipment for pulping; conveying the pulped liquid raw materials to a blending tank through a pump for blending; conveying the liquid raw materials to a liquid spiral tube microwave sterilization device through a pump for microwave sterilization, wherein the microwave radiation temperature in the microwave sterilization process can be adjusted to be 50-120 ℃, the microwave treatment time is 10-40 min, and the microwave power is 45 KW; conveying the liquid raw material into a heat exchanger through a pump, wherein the temperature of the liquid raw material in the heat exchanger is reduced to 5 ℃; and conveying the liquid raw materials into a material storage tank through a pump.
Example 2: liquid materials are conveyed into the material conveying pipe 5 through the material inlet 3, the first microwave generator 9 and the second microwave generator 10 are started, the material conveying pipe 5 adopts a spiral structure, at the moment, the first microwave generator 9 and the second microwave generator 10 are in a surrounding structure to sterilize the liquid materials in the material conveying pipe 5 on the outer side and the inner side, the microwave sterilization effect is guaranteed, the liquid materials after microwave sterilization flow out of the material outlet 4, and the microwave sterilization process is completed.
The following includes the experimental data for example 1 and example 2;
2019.01.20 sterilizing with mopping water at 60-65 deg.C for 40min, with total bacterial colony amount (national standard) sterilization rate of 99.9% and Escherichia coli (national standard) sterilization rate of 100%;
the experimental data are as follows:
the above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A liquid spiral tube microwave sterilization device is characterized in that the sterilization device comprises a material conveying unit and a microwave unit;
the material conveying unit comprises a sterilization tank (1), a sterilization cavity (2) is formed in the sterilization tank (1), a feeding hole (3) and a discharging hole (4) are formed in one side of the sterilization cavity (2), a material conveying pipe (5) is fixedly connected in the sterilization cavity (2), the material conveying pipe (5) comprises a feeding side and a discharging side, the feeding side and the discharging side are respectively connected with the feeding hole (3) and the discharging hole (4), and the material conveying pipe (5) is arranged in the sterilization cavity (2) in a spiral structure to form a pair of spiral pipes (6);
the microwave unit includes first microwave unit group (7) and second microwave unit group (8), side wall face in jar (1) disinfects is managed to first microwave unit group (7) rigid coupling, second microwave unit group (8) rigid coupling is just located a pair of in jar (1) disinfects upper surface spiral pipe (6) perpendicular center line position.
2. A liquid spiral tube microwave sterilization device as claimed in claim 1, wherein the first microwave unit set (7) comprises a plurality of first microwave generators (9), and the plurality of first microwave generators (9) are uniformly and fixedly connected to the inner side wall surface of the sterilization tank (1).
3. A spiral tube microwave sterilization device for liquid according to claim 1, wherein the second microwave unit set (8) comprises a plurality of second microwave generators (10), and the plurality of second microwave generators (10) are fixedly connected to a pair of vertical center lines of the spiral tube (6) in a circular structure.
4. A spiral pipe microwave sterilization device for liquid according to claim 1, wherein the material conveying pipe (5) is made of tetrafluoroethylene, glass fiber reinforced plastic and ceramic pipe.
5. A liquid spiral tube microwave sterilization device as claimed in claim 4, wherein the first microwave generator (9) and the second microwave generator (10) are electrically connected with a power supply device through a circuit board and an electric wire.
6. A sterilization method using the apparatus of any one of claims 1 to 5, wherein the sterilization method comprises the steps of:
s1: conveying the raw materials to pulping equipment for pulping;
s2: conveying the pulped liquid raw materials to a blending tank through a pump for blending;
s3: conveying the liquid raw materials to a liquid spiral tube microwave sterilization device through a pump for microwave sterilization, wherein the microwave radiation temperature in the microwave sterilization process can be adjusted to be 50-120 ℃, the microwave treatment time is 10-40 min, and the microwave power is 45 KW;
s4: conveying the liquid raw material into a heat exchanger through a pump, wherein the temperature of the liquid raw material in the heat exchanger is reduced to 5 ℃;
s5: and conveying the liquid raw materials into a material storage tank through a pump.
7. A sterilization method according to claim 6, wherein said heat exchanger is a tube heat exchanger or a plate heat exchanger.
8. A sterilization method according to claim 6, wherein said inlet (3) is connected to the preparation tank by a pump, and said outlet (4) is connected to the heat exchanger by a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558943.8A CN112450351A (en) | 2020-12-25 | 2020-12-25 | Liquid spiral tube microwave sterilization equipment and sterilization method using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558943.8A CN112450351A (en) | 2020-12-25 | 2020-12-25 | Liquid spiral tube microwave sterilization equipment and sterilization method using same |
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| Publication Number | Publication Date |
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| CN112450351A true CN112450351A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011558943.8A Pending CN112450351A (en) | 2020-12-25 | 2020-12-25 | Liquid spiral tube microwave sterilization equipment and sterilization method using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304466A (en) * | 2022-01-13 | 2022-04-12 | 伊睦(上海)流体科技有限公司 | Experimental microwave sterilization device and sterilization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201160488Y (en) * | 2008-02-03 | 2008-12-10 | 王承辉 | Microwave sterilization machine for current medium |
| CN109329695A (en) * | 2018-08-21 | 2019-02-15 | 广东嘉士利食品集团有限公司 | A kind of tunnel type micro wave bactericidal unit and the method to be sterilized using microwave to starch materials |
| CN209449608U (en) * | 2019-01-05 | 2019-10-01 | 海南芭芭乐食品股份有限公司 | A kind of food and drink sterilization machine |
| CN209639461U (en) * | 2018-12-12 | 2019-11-15 | 石柱土家族自治县悦立中药材专业合作社 | A kind of cymose buckwheat rhizome Chinese medicine drying sterilization integrated device |
| CN211430945U (en) * | 2019-09-06 | 2020-09-08 | 会泽鲟鱼谷鱼子酱有限责任公司 | Efficient sterilizing device is used in caviar processing |
-
2020
- 2020-12-25 CN CN202011558943.8A patent/CN112450351A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160488Y (en) * | 2008-02-03 | 2008-12-10 | 王承辉 | Microwave sterilization machine for current medium |
| CN109329695A (en) * | 2018-08-21 | 2019-02-15 | 广东嘉士利食品集团有限公司 | A kind of tunnel type micro wave bactericidal unit and the method to be sterilized using microwave to starch materials |
| CN209639461U (en) * | 2018-12-12 | 2019-11-15 | 石柱土家族自治县悦立中药材专业合作社 | A kind of cymose buckwheat rhizome Chinese medicine drying sterilization integrated device |
| CN209449608U (en) * | 2019-01-05 | 2019-10-01 | 海南芭芭乐食品股份有限公司 | A kind of food and drink sterilization machine |
| CN211430945U (en) * | 2019-09-06 | 2020-09-08 | 会泽鲟鱼谷鱼子酱有限责任公司 | Efficient sterilizing device is used in caviar processing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304466A (en) * | 2022-01-13 | 2022-04-12 | 伊睦(上海)流体科技有限公司 | Experimental microwave sterilization device and sterilization method |
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Application publication date: 20210309 |