CN114259010A - Microwave sterilizing device - Google Patents
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- CN114259010A CN114259010A CN202210085882.0A CN202210085882A CN114259010A CN 114259010 A CN114259010 A CN 114259010A CN 202210085882 A CN202210085882 A CN 202210085882A CN 114259010 A CN114259010 A CN 114259010A
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Abstract
本发明公开了一种微波消杀装置，涉及微波消杀技术领域。本发明包括消杀通道，消杀通道包括底座、装设在底座上侧的U型盖板，底座上侧装设有操作台、翻转机构、推料机构、两交错托举机构；操作台上开设有与交错托举机构相对应的第一贯穿孔、与翻转机构相对应的开口，推料机构装设在U型盖板侧部内壁上，推料机构一端滑动配合在操作台上侧，操作台与底座之间装设有多个第一支撑柱。本发明通过设置推料机构便于带动冷藏食品在操作台上侧移动，通过设置两交错托举机构，便于对冷藏食品进行二次消杀和杀菌，通过设置翻转机构，便于带动冷藏食品翻转，使冷藏食品周侧消杀和杀菌更加均匀，提高消杀和杀菌效果的合格率和效率。
The invention discloses a microwave sterilization device, which relates to the technical field of microwave sterilization. The invention includes a disinfecting channel, the disinfecting channel includes a base, a U-shaped cover plate installed on the upper side of the base, and an operation table, a turning mechanism, a pushing mechanism and two staggered lifting mechanisms are installed on the upper side of the base; A first through hole corresponding to the staggered lifting mechanism and an opening corresponding to the turning mechanism are opened. The pushing mechanism is installed on the inner wall of the side part of the U-shaped cover, and one end of the pushing mechanism is slidably fitted on the upper side of the operating table. A plurality of first support columns are installed between the operating table and the base. The present invention facilitates driving the refrigerated food to move on the upper side of the operating table by arranging a pushing mechanism, facilitates secondary sterilization and sterilization of refrigerated food by arranging two staggered lifting mechanisms, and facilitates driving the refrigerated food to turn over by arranging a turning mechanism. The sterilization and sterilization on the periphery of refrigerated food is more uniform, and the qualification rate and efficiency of the sterilization and sterilization effect are improved.
Description
Technical Field
The invention belongs to the technical field of microwave killing, and particularly relates to a microwave killing device.
Background
For food-borne viruses, the cold chain transmission pathway has been well recognized. Common pathogenic food-borne viruses including enteroviruses, hepatitis a viruses, hepatitis e viruses, norovirus and rotavirus, patients infected with these viruses often excrete a large number of virus particles in feces, and take about 10 to 100 infectious virus particles orally to cause disease, which is also an important pathogen causing epidemic diseases.
The traditional microwave killing method utilizes the heat effect of microwave energy and the non-heat effect of microwave at the same time. The microwave energy heats the bacteria or viruses in the article by absorbing the microwave energy, thereby denaturing the proteins and losing the biological activity. The non-thermal effect of microwave energy means that the high-frequency electric field also changes the membrane potential and polar molecular structure of the microwave energy, so that the proteins and physiologically active substances in the microorganisms are mutated to lose vitality or die, and the microwave killing can go deep into the interior of the object.
The cold chain logistics generally refers to a system project that refrigerated and frozen foods are always in a specified low-temperature environment in production, storage, transportation and sale in all links before consumption so as to ensure the quality of the foods and reduce the loss of the foods. The cold chain can keep food fresh and also become a way for spreading viruses, once the cold chain food and/or food package is infected with viruses in the production and circulation links, the traditional cold chain low-temperature and high-humidity environment is favorable for keeping the activity of the viruses for a long time and possibly causing the virus spreading. Therefore, an effective cold chain food outer package sterilization system aiming at the new coronavirus is needed, and the transmission path of the new coronavirus of the cold chain food and the food package is cut off.
Disclosure of Invention
The invention aims to provide a microwave killing device, which solves the technical problems of killing cold chain food outer packages and cutting off the way of spreading new coronavirus of the cold chain food and the food packages.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a microwave killing device comprises a killing channel, wherein the killing channel comprises a base and a U-shaped cover plate arranged on the upper side of the base, and the upper side of the base is provided with an operating table, a turnover mechanism, a material pushing mechanism and two staggered lifting mechanisms;
the operating platform is provided with first through holes corresponding to the staggered lifting mechanisms and openings corresponding to the turnover mechanisms, the pushing mechanism is arranged on the inner wall of the side part of the U-shaped cover plate, one end of the pushing mechanism is in sliding fit with the upper side of the operating platform, and a plurality of first supporting columns are arranged between the operating platform and the base.
Optionally, the turnover mechanism is located between the two staggered lifting mechanisms, and the pushing mechanism is located at the side of the turnover mechanism and the two staggered lifting mechanisms.
Optionally, the staggered lifting mechanism comprises a first electric push rod arranged on the upper side of the base, a first lifting frame arranged at the output end of the first electric push rod, a plurality of first long holes arranged on the upper side of the first lifting frame, a second electric push rod arranged in the first lifting frame, and a second lifting frame arranged at the output end of the second electric push rod.
Optionally, the first lifting frame comprises a first plate body arranged at the output end of the first electric push rod, a second plate body positioned on the upper side of the first plate body, and a plurality of connecting columns arranged between the first plate body and the second plate body, the second electric push rod is fixed on the upper side of the first plate body, and the first long hole is formed in the second plate body.
Optionally, the second lifting frame comprises a mounting plate mounted on the second electric push rod, and a T-shaped rod mounted on the upper side of the mounting plate and corresponding to the first long hole.
Optionally, the turnover mechanism comprises a third electric push rod arranged on the upper side of the base, an L-shaped support arranged at the output end of the third electric push rod, a guide strip rotationally matched on one side of the L-shaped support, and two clamping plates in sliding fit on one side of the guide strip, a servo motor is arranged on one side of the L-shaped support, and the output end of the servo motor penetrates through the L-shaped support and is fixedly connected with the guide strip.
Optionally, the guide strip one side is fixed with the biax and stretches the motor, and the threaded rod has all been installed at biax and stretches motor output shaft both ends, and two threaded rods respectively with two splint screw-thread fit.
Optionally, a guide channel is formed in one side of the guide strip along the height direction, a guide convex strip in sliding fit in the guide channel is arranged on one side of the clamping plate, and the cross sections of the guide channel and the guide convex strip are of T-shaped structures.
Optionally, the pushing mechanism includes two gears rotatably fitted on the inner wall of the side portion of the U-shaped cover plate, a transmission toothed belt in transmission fit between the two gears, and a pushing bar installed on the side surface of the transmission toothed belt, the outer side of the U-shaped cover plate is provided with a stepping motor, and the output end of the stepping motor extends into the U-shaped cover plate and is fixedly connected with one gear.
The embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, the pushing mechanism is arranged to conveniently drive the refrigerated food to move on the upper side of the operating platform, the two staggered lifting mechanisms are arranged to conveniently carry out secondary killing and sterilization on the refrigerated food, the turnover mechanism is arranged to conveniently drive the refrigerated food to turn over, so that the killing and sterilization of the periphery of the refrigerated food are more uniform, and the qualification rate and the efficiency of the killing and sterilization effects are improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the components above the base according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cross lift mechanism according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a cross-lift mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a turnover mechanism according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
the device comprises a killing channel 1, an operating table 2, a first through hole 3, an opening 4, a first supporting column 5, a first electric push rod 6, a first lifting frame 7, a first long hole 8, a second electric push rod 9, a second lifting frame 10, a third electric push rod 11, an L-shaped support 12, a guide strip 13, a clamping plate 14, a double-shaft extension motor 15, a threaded rod 16, a guide channel 17, a guide convex strip 18, a gear 19, a transmission toothed belt 20, a pushing strip 21, a servo motor 22 and a stepping motor 23;
a base 101, a U-shaped cover plate 102;
a first plate 701, a second plate 702, a connecting column 703;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Referring to fig. 1 to 5, in the present embodiment, a microwave killing apparatus is provided, including: the sterilization and killing device comprises a sterilization and killing channel 1, wherein the sterilization and killing channel 1 comprises a base 101 and a U-shaped cover plate 102 arranged on the upper side of the base 101, a microwave sterilization and killing device is arranged on the bottom surface of the U-shaped cover plate 102, and an operating table 2, a turnover mechanism, a material pushing mechanism and two staggered lifting mechanisms are arranged on the upper side of the base 101;
the operating platform 2 is provided with a first through hole 3 corresponding to the staggered lifting mechanism and an opening 4 corresponding to the turnover mechanism, the pushing mechanism is arranged on the inner wall of the side part of the U-shaped cover plate 102, one end of the pushing mechanism is in sliding fit with the upper side of the operating platform 2, and a plurality of first supporting columns 5 are arranged between the operating platform 2 and the base 101.
Be convenient for drive cold-stored food through setting up pushing equipment and remove at 2 upsides of operation panel, lift the mechanism through setting up two crisscross, be convenient for carry out the secondary to cold-stored food and disappear and disinfect, through setting up tilting mechanism, be convenient for drive cold-stored food upset, make cold-stored food week side disappear and kill and disinfect more evenly, improve disappear and kill and the qualification rate and the efficiency of bactericidal effect.
The specific turnover mechanism is positioned between two staggered lifting mechanisms, the pushing mechanism is positioned at the turnover mechanism and the side parts of the two staggered lifting mechanisms, the staggered lifting mechanism comprises a first electric push rod 6 arranged on the upper side of a base 101, a first lifting frame 7 arranged at the output end of the first electric push rod 6, a plurality of first long holes 8 arranged on the upper side of the first lifting frame 7, a second electric push rod 9 arranged in the first lifting frame 7 and a second lifting frame 10 arranged at the output end of the second electric push rod 9, the first lifting frame 7 comprises a first plate body 701 arranged at the output end of the first electric push rod 6, a second plate body 702 arranged on the upper side of the first plate body 701, a plurality of connecting columns 703 arranged between the first plate body 701 and the second plate body 702, the second electric push rod 9 is fixed on the upper side of the first plate body 701, the first long holes 8 are arranged on the second plate body 702, the second lifting frame 10 comprises a mounting plate 1001 arranged on the second electric push rod 9, A T-shaped rod body 1002 which is arranged at the upper side of the mounting plate 1001 and corresponds to the first long hole 8 is convenient for the first electric push rod 6 to drive the first lifting frame 7 to move upwards and lift up, the microwave sterilizer in the upper part of the U-shaped cover plate 102 kills the upper side and the side surface of the refrigerated food, the bottom surface corresponding to the first long hole 8 reacts with ozone generated in the killing channel 1 to carry out preliminary sterilization, then a second electric push rod 9 is started to drive a second lifting frame 10 to extend into the first long hole 8 to lift the refrigerated food, so that the residual part on the bottom surface of the refrigerated food reacts with ozone generated in the sterilizing channel 1 to carry out preliminary sterilization, then the first electric push rod 6 and the second electric push rod 9 drive the height of the refrigerated food to return to be parallel to and level with the operation table 2, primary disinfection and sterilization are completed, the stepping motor 23 drives the two gears 19 and the transmission toothed belt 20 to drive the pushing strip 21 to move the refrigerated food to another first lifting frame 7 for secondary disinfection and sterilization.
The specific turnover mechanism comprises a third electric push rod 11 arranged on the upper side of a base 101, an L-shaped bracket 12 arranged at the output end of the third electric push rod 11, a guide strip 13 in running fit with one side of the L-shaped bracket 12, two clamping plates 14 in sliding fit with one side of the guide strip 13, a servo motor 22 arranged at one side of the L-shaped bracket 12, the output end of the servo motor 22 penetrating through the L-shaped bracket 12 and fixedly connected with the guide strip 13, a double-shaft extension motor 15 fixed at one side of the guide strip 13, threaded rods 16 arranged at both ends of the output shaft of the double-shaft extension motor 15 and respectively in threaded fit with the two clamping plates 14, the two threaded rods 16 are opposite in thread direction, a guide channel 17 is arranged at one side of the guide strip 13 along the height direction, a guide convex strip 18 in sliding fit with the guide channel 17 is arranged at one side of the clamping plates 14, the cross sections of the guide channel 17 and the guide convex strip 18 are both in a T-shaped structure, so that the two clamping plates 14 are driven by the double-shaft extension motor 15 to slide oppositely to clamp the refrigerated food, then third electric putter 11 drive L type support 12 goes up the slip, makes two splint 14 drive the refrigerated food and breaks away from operation panel 2, then servo motor 22 drive direction sand grip 18 rotates and drives two splint 14 and the upset of refrigerated food, then third electric putter 11 drive L type support 12 gliding will be refrigerated food and put back operation panel 2, and then accomplish the upset of refrigerated food, and then be convenient for the refrigerated food positive and negative sterilization and disinfect more evenly.
The specific pushing mechanism comprises two gears 19 which are in running fit with the inner wall of the side portion of the U-shaped cover plate 102, a transmission toothed belt 20 which is in transmission fit between the two gears 19, and a pushing strip 21 which is arranged on the side face of the transmission toothed belt 20, wherein a stepping motor 23 is arranged on the outer side of the U-shaped cover plate 102, and the output end of the stepping motor 23 extends into the U-shaped cover plate 102 and is fixedly connected with one gear 19, so that the stepping motor 23 can drive the two gears 19 and the transmission toothed belt 20 to drive the pushing strip 21, and further the refrigerated food is driven to move on the operating platform 2.
Currently, ultraviolet lamps mainly use ultraviolet rays with two wavelengths of 253.7nm and 185nm in the field of disinfection. Ultraviolet rays with the wavelength of 253.7nm can damage the molecular structure of DNA deoxyribonucleic acid or RNA ribonucleic acid in microbial organism cells to cause death of growing cells and/or death of regenerative cells, so that the effects of sterilization and disinfection are achieved. The 185nm ultraviolet ray excited by the microwave ionizes oxygen in the air to further produce ozone, the ozone has strong oxidation effect and has decomposition effect on various organic matters from hydrocarbon to carboxylic acid, and the diffusivity of the ozone can make up the defect that the ultraviolet ray only propagates in a straight line and has dead angles in sterilization.
The traditional ultraviolet lamp tube can generate high-power microwaves to form a local strong electric field in space by changing the ingredient mercury of a metal filler in the lamp tube to replace other metals and fluorescent powder on the inner wall of the tube, and the inert gas can be directly excited in the lamp tube to ionize and start the lamp by utilizing the space strong electric field without a traditional high-voltage electrode and a traditional starter, so that the microwave ultraviolet lamp is also called an electrodeless ultraviolet lamp. Ultraviolet light of different wavelengths.
Different types of microorganisms have different sensitivities to ultraviolet rays, and when ultraviolet rays are used for sterilization, irradiation dose is required to achieve the irradiation dose required for killing target microorganisms. The ultraviolet radiation dose refers to the amount of ultraviolet rays with specific wavelengths required when a certain bacteria inactivation rate is achieved:
irradiation dose J/m2= irradiation time s × UVC intensity W/m2
The larger the irradiation dose, the higher the disinfection efficiency, and because of the equipment size, the irradiation time is generally very short, therefore, the UVC output intensity of the lamp tube becomes the most important parameter for measuring the performance of the ultraviolet disinfection equipment. In the ultraviolet lamp, the higher the frequency of an electric field for exciting ionization is, the higher the excitation efficiency is, and the efficiency of the microwave ultraviolet lamp is more than 20 times that of the traditional ultraviolet lamp. In addition, the microwave ultraviolet lamp has short glow starting time, can realize instant start and restart, and has stable light output; because the electrode is not included, the problem of electrode aging loss does not exist, and the service life of the lamp tube is longer.
The traditional microwave killing method utilizes the heat effect of microwave energy and the non-heat effect of microwave at the same time. The microwave energy heats the bacteria or viruses in the article by absorbing the microwave energy, thereby denaturing the proteins and losing the biological activity. The non-thermal effect of microwave energy means that the high-frequency electric field also changes the membrane potential and the polar molecular structure of the microwave energy, so that the proteins and the physiologically active substances in the microorganisms are mutated to lose the activity or die. Although microwave sterilization can go deep into the object, the ice layer can be melted during the conventional microwave sterilization process, and the influence on the cold chain product is caused.
The pulse microwave has high power, can generate a very high electromagnetic field on the surfaces of pathogenic bacteria to enhance the non-thermal effect, but has short action time and low average power, and the generated heat hardly influences the ice layer. The pulse magnetron can excite pulse microwaves with high frequency and small duty ratio. High-power pulse microwaves are adopted to penetrate into the cold chain, so that the inside and the outside of the cold chain are integrally killed.
Microwave is an electromagnetic wave, metal can attenuate the electromagnetic wave, and a metal mesh or a metal shell is usually used to separate the microwave generating area from the area to be protected from intrusion so as to shield the microwave. The project needs to shield microwaves and enable cold chain products to be subjected to ultraviolet irradiation and ozone action excited by the microwaves, so that a structure for shielding the microwaves needs to be designed, and the microwave shielding effect and the ultraviolet irradiation effect are optimized.
And the high-power pulse microwave is transmitted by adopting modes of mode conversion and waveguide transmission cutoff. When transmitting high power pulse microwave, a three-port circulator is selected, and the circulator has the outstanding characteristic of unidirectional transmission of high-frequency signal energy. It controls the transmission of electromagnetic waves along a certain circular direction. The characteristic of unidirectional transmission of high-frequency signal energy is mainly used between the output end of a high-frequency power amplifier and a load, and plays the role of mutual independence and mutual isolation. The load impedance does not influence the working state of the power amplifier under the condition of change, even open circuit or short circuit. A three-port circulator is adopted to transmit high-power pulse microwave signals, and meanwhile, glow starting microwave signals are isolated.
An efficient assembly line killing device is needed in large occasions. Ultraviolet rays, ozone, microwaves and the like are used for sterilization and disinfection, and sufficient reaction time is needed to ensure the effect. In order to ensure that the killing quality is not reduced on the premise of meeting the efficiency, the four factors of the illumination of ultraviolet rays, the concentration of ozone, the intensity of an electromagnetic field and the running speed of a conveyor belt need to be comprehensively considered.
Virus killing effect verification of frozen product
The simulated virus without pathogenic effect replaces SARS-CoV-2, the disinfection effect of the equipment on cold chain food is verified, and the optimal technological parameters are obtained.
Preparation of mock viruses
The GFP gene sequence containing introns is inserted into the transgene expression cassette of the recombinant adeno-associated virus or lentiviral vector. A multi-plasmid cotransfection method is adopted to prepare the simulated virus.
Intron-containing green fluorescent protein GFP genome expression cassette
Cold chain food killing effect verification
Samples containing the simulated virus are taken and respectively coated on different parts of the outer package of the cold chain food and are frozen and stored at different thicknesses of the frozen food. The virus content in each sample was 106 vg (genome titer).
And (4) placing the simulated sample in the equipment for killing, and respectively determining the residual quantity of the simulated virus genome after killing. In addition, the killed virus-infected cells were taken and the mRNA expression level of GFP was measured.
The experiment of SARS-CoV-2 killing is carried out under the allowable conditions
The disinfection effect of SARS-CoV-2 is verified in a P3 laboratory which meets the safety requirements.
The SARS-CoV-2 genome is detected by using a commercially available kit. The activity of SARS-CoV-2 is measured by using the mRNA of its capsid protein E as a representative.
Samples containing the simulated virus are taken and respectively coated on different parts of the outer package of the cold chain food and are frozen and stored at different thicknesses of the frozen food. The virus content in each sample was 106 vg (genome titer).
And (4) placing the simulated sample in the equipment for killing, and respectively determining the residual quantity of the simulated virus genome after killing. In addition, the killed virus-infected cells were taken and the mRNA expression level of GFP was measured.
The experiment of SARS-CoV-2 killing is carried out under the allowable conditions
The disinfection effect of SARS-CoV-2 is verified in a P3 laboratory which meets the safety requirements.
The SARS-CoV-2 genome is detected by using a commercially available kit. The activity of SARS-CoV-2 is measured by using the mRNA of its capsid protein E as a representative.
The influence of electromagnetic field intensity under different ultraviolet illumination, different ozone concentrations and different pulse microwave powers on the disinfection effect is respectively researched. For the transmission type sterilization device, the influence of different transmission speeds on sterilization is simultaneously researched, and the proper transmission speed is determined, so that the sterilization and disinfection process is fast and efficient. On the basis of the sterilization experiment of the closed ice box, the ultraviolet illumination, the ozone concentration, the electromagnetic field intensity of the high-power pulse microwave and the transmission speed of the transmission device of the optimized sterilization and disinfection device are determined, and the effectiveness of sterilization and disinfection is ensured.
Bacterial killing effect verification of frozen product
The method verifies the killing effect of the equipment on cold chain food by using foods such as frozen sea fish, meat and the like for preservation, and obtains the optimal technological parameters.
Food samples such as iced and fresh-kept sea fish, meat and the like are taken and soaked and inoculated with escherichia coli suspension, and the inoculation amount is 103 cfu/g. Sterilizing with project equipment, and storing under freezing and refrigerating conditions. Sampling at different time, and inspecting the inhibition efficiency of different microwave parameter conditions on the escherichia coli. The samples without sterilization treatment were used as positive control.
In addition, the influence of the killing treatment on the quality of the large yellow croaker, such as the change of key quality parameters of muscle pH, muscle texture characteristics, TVB-N, TBARS value and the like, is also examined.
Heat effect assessment
A temperature rise contrast test is adopted to verify whether the heat effect is generated under the optimal condition of effectively killing viruses and bacteria.
The methyl pyrrolidone (NMP) was placed in a 10 ml reaction flask and subjected to microwave treatment using the apparatus of the present item, and the microwave treatment mode was set with reference to the optimum parameters of the above 5 and 6. The outside temperature of the reaction flask was monitored by an infrared thermometer, and the actual inside temperature of the reaction flask was monitored by 3 (upper, middle, lower) fiber optic thermometers. The temperature process is recorded, and the conventional microwave is used as a contrast to verify that the equipment of the project eliminates the heat effect.
The traditional ultraviolet sterilization is improved, and a sterilization method for generating ultraviolet rays by using a microwave-excited electrodeless lamp is provided, so that ultraviolet rays and ozone with higher concentration are generated, the sterilization efficiency is improved, and the service life of equipment is prolonged.
The high-power microwave ultraviolet ray and ozone are used for sterilizing the cold chain products from inside to outside in an all-around dead-angle-free sterilization mode. And can be applied to the assembly line device, improve the sterilization efficiency and strengthen the sterilization effect.
Research is carried out on the basis of microwave sterilization, and the high-power pulse microwave sterilization is proposed to increase the non-heat effect and reduce the heat generated in the sterilization process as much as possible. Provides a brand new means for the sterilization and disinfection of the cold chain products at present.
Realize quick no dead angle surface of cold chain food and disappear and kill
The ultraviolet sterilization efficiency is high, but dead angles exist due to the fact that ultraviolet irradiation cannot be conducted on partial areas, the surface can be sterilized without the dead angles due to the fact that ozone is diffused, and a certain time is needed for diffusion. Although the traditional direct current ultraviolet lamp can realize the synergistic killing of ultraviolet rays and ozone, the strength of the excited ultraviolet rays is small, the concentration of the generated ozone is low, and the killing rate is slow. The ultraviolet ray intensity excited by the microwave ultraviolet lamp is far higher than that of a common direct-current ultraviolet lamp, and the high-intensity ultraviolet ray can excite ozone with higher concentration. The quick and comprehensive disinfection without dead angles of a cold chain can be realized under the synergistic action of ultraviolet rays and ozone.
Realize that the ice layer of the cold chain disappears and kills inside and outside integrative at the same time
Ultraviolet rays and ozone and other traditional methods cannot penetrate through objects to kill the inside of the cold chain product, so that bacteria and viruses polluted inside the cold chain product are effectively killed, and the problem is solved. The microwave can penetrate through the surface of the cold chain product, and the inside and the outside of the product are integrated and acted simultaneously. The high power microwave energy creates extremely high modal pressure differentials at the surface of the bacteria or virus, causing cell disruption or inactivation of the bacteria. The method of high-power microwave ultraviolet ozone synergistic disinfection can realize simultaneous disinfection of the inner part and the outer part of the cold chain ice layer.
Non-thermal killing of cold chain products
In the microwave killing process, mainly thermal effect and non-thermal effect act. Although the cold chain product can achieve the effect of disinfection and sterilization after absorbing heat generated by microwaves, the heat can cause the ice layer to melt, and the quality of the cold chain product is affected. Therefore, the object is to be prevented from absorbing excessive microwave to generate heat and damage cold chain products in the killing process. The project utilizes high-power pulse microwaves to kill germs in a very short time, and because the action time is short, the generated heat cannot influence the ice layer, and high-concentration ultraviolet rays and ozone are combined, so that high-efficiency and inside and outside non-thermal killing is realized.
The application of one aspect of the embodiment is as follows: conveying the refrigerated food to an operation table 2 of a sterilizing channel 1, driving two gears 19 and a transmission toothed belt 20 by a stepping motor 23 to drive a material pushing bar 21 to move the refrigerated food on a first lifting frame 7, driving the first lifting frame 7 to move upwards and lift by a first electric push rod 6, sterilizing the upper side and the side of the refrigerated food by a microwave sterilizer in the upper part of a U-shaped cover plate 102, reacting the bottom surface corresponding to a first long hole 8 with ozone generated in the sterilizing channel 1 for preliminary sterilization, starting a second electric push rod 9 to drive a second lifting frame 10 to extend into the first long hole 8 to lift the refrigerated food, reacting the rest part of the bottom surface of the refrigerated food with the ozone generated in the sterilizing channel 1 for preliminary sterilization, and driving the height of the refrigerated food to return to be level with the operation table 2 by the first electric push rod 6 and the second electric push rod 9;
then a stepping motor 23 drives two gears 19 and a transmission toothed belt 20 to drive a material pushing strip 21 to move the refrigerated food on the first lifting frame 7 between the two clamping plates 14, a double-shaft stretching motor 15 drives a threaded rod 16 to drive the two clamping plates 14 to slide oppositely to clamp the refrigerated food, then a third electric push rod 11 drives an L-shaped support 12 to slide upwards to enable the two clamping plates 14 to drive the refrigerated food to be separated from the operation table 2, a servo motor 22 drives a guide convex strip 18 to rotate to drive the two clamping plates 14 and the refrigerated food to turn over, then the third electric push rod 11 drives the L-shaped support 12 to slide downwards to place the refrigerated food back to the operation table 2, and the stepping motor 23 drives the two gears 19 and the transmission toothed belt 20 to drive the material pushing strip 21 to move the refrigerated food on the other first lifting frame 7 for secondary sterilization and disinfection. It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (10)
1. A microwave killing device, comprising: the sterilizing channel (1), the sterilizing channel (1) includes the base (101), install the U-shaped cover plate (102) on the upside of base (101), the upside of base (101) is equipped with the operation panel (2), the tilting mechanism, the pusher, two and staggered and lift the organization;
the operating platform (2) is provided with first through holes (3) corresponding to the staggered lifting mechanisms and openings (4) corresponding to the turnover mechanisms, the pushing mechanism is arranged on the inner wall of the side part of the U-shaped cover plate (102), one end of the pushing mechanism is in sliding fit with the upper side of the operating platform (2), and a plurality of first supporting columns (5) are arranged between the operating platform (2) and the base (101).
2. A microwave killing apparatus as claimed in claim 1, wherein the turnover mechanism is located between the two staggered lifting mechanisms, and the pushing mechanism is located at a side of the turnover mechanism and the two staggered lifting mechanisms.
3. The microwave killing device according to claim 1, wherein the staggered lifting mechanism comprises a first electric push rod (6) arranged on the upper side of the base (101), a first lifting frame (7) arranged at the output end of the first electric push rod (6), a plurality of first long holes (8) arranged on the upper side of the first lifting frame (7), a second electric push rod (9) arranged in the first lifting frame (7), and a second lifting frame (10) arranged at the output end of the second electric push rod (9).
4. A microwave killing apparatus according to claim 3, wherein the first lifting frame (7) comprises a first plate (701) installed at the output end of the first electric pushing rod (6), a second plate (702) located at the upper side of the first plate (701), and a plurality of connecting columns (703) installed between the first plate (701) and the second plate (702), and the second electric pushing rod (9) is fixed at the upper side of the first plate (701), and the first long hole (8) is opened at the second plate (702).
5. A microwave killing apparatus according to claim 3, wherein the second lifting frame (10) comprises a mounting plate (1001) mounted on the second electric pushing rod (9), and a T-shaped rod (1002) mounted on the upper side of the mounting plate (1001) and corresponding to the first slot (8).
6. The microwave killing device according to claim 1, wherein the turnover mechanism comprises a third electric push rod (11) arranged on the upper side of the base (101), an L-shaped bracket (12) arranged at the output end of the third electric push rod (11), a guide bar (13) rotatably fitted on one side of the L-shaped bracket (12), and two clamping plates (14) slidably fitted on one side of the guide bar (13), wherein a servo motor (22) is arranged on one side of the L-shaped bracket (12), and the output end of the servo motor (22) penetrates through the L-shaped bracket (12) and is fixedly connected with the guide bar (13).
7. A microwave killing device as claimed in claim 6, characterized in that a double-shaft motor (15) is fixed on one side of the guide bar (13), threaded rods (16) are respectively mounted on both ends of the output shaft of the double-shaft motor (15), and the two threaded rods (16) are respectively in threaded engagement with the two clamping plates (14).
8. A microwave killing device according to claim 6, characterized in that one side of the guide bar (13) is provided with a guide channel (17) along the height direction, and one side of the clamping plate (14) is provided with a guide convex strip (18) which is in sliding fit with the guide channel (17).
9. A microwave killing apparatus according to claim 8, characterized in that the cross-sections of the guide channel (17) and the guide rib (18) are T-shaped.
10. The microwave killing device as claimed in claim 1, wherein the pushing mechanism comprises two gears (19) rotatably fitted on the inner wall of the side portion of the U-shaped cover plate (102), a transmission toothed belt (20) transmission fitted between the two gears (19), and a pushing bar (21) installed on the side surface of the transmission toothed belt (20), wherein a stepping motor (23) is installed on the outer side of the U-shaped cover plate (102), and the output end of the stepping motor (23) extends into the U-shaped cover plate (102) and is fixedly connected with one gear (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210085882.0A CN114259010A (en) | 2022-01-25 | 2022-01-25 | Microwave sterilizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210085882.0A CN114259010A (en) | 2022-01-25 | 2022-01-25 | Microwave sterilizing device |
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| CN114259010A true CN114259010A (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210085882.0A Pending CN114259010A (en) | 2022-01-25 | 2022-01-25 | Microwave sterilizing device |
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| CN (1) | CN114259010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114794352A (en) * | 2022-05-18 | 2022-07-29 | 华侨大学 | A microwave source-based ultra-high-power ultraviolet surface disinfection technology |
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