CN209135292U - A kind of magnetic field sterilizing unit impulse electric field generating system - Google Patents
A kind of magnetic field sterilizing unit impulse electric field generating system Download PDFInfo
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- CN209135292U CN209135292U CN201821563214.XU CN201821563214U CN209135292U CN 209135292 U CN209135292 U CN 209135292U CN 201821563214 U CN201821563214 U CN 201821563214U CN 209135292 U CN209135292 U CN 209135292U
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Abstract
A kind of magnetic field sterilizing unit impulse electric field generating system, input electric wire is 220V alternating current, boosted device increases voltage and current limiter current limliting again after pressure regulator burning voltage, the alternating current that voltage and current is met the requirements is obtained, which becomes DC power supply by rectifier rectification, when charge switch closure, DC power supply charges to capacitor, when charge switch disconnects, charging terminates, and has a safety feature.
Description
Technical field
The invention belongs to foodstuff processing technology fields, more particularly to a kind of magnetic field sterilizing unit impulse electric field system
System.
Background technique
Magnetic field sterilization is a kind of physics cold sterilization technology, is to have being not added for sterilization material to food sterilization using magnetic field
Heat, time are short, and magnetic leakage free problem, power consumption is low, and germicidal efficiency is high, and bactericidal effect is good, easily controllable, and penetration capacity is strong and kills
The features such as bacterium is thorough can keep the nutritional ingredient and taste of food well while sterilization to food, and without nuisance
The features such as matter remains, therefore pulsed magnetic field sterilization has wide market potential in cold process for sterilizing.It is a large amount of research shows that
Strong pulse magnetic field sterilization has critically important application value in industries such as food, water process.Currently, China's pulse magnetic field is killed
Also in laboratory stage, used electric discharge pressure is too high for the research of bacterium device, generally from several kilovolts to tens of thousands of volts.It is so high
Voltage brings great inconvenience to operator, and security performance is also poor, these all hinder pulsed magnetic field and lead in sterilization
Research and development in domain more limits its application and popularization in the industrial production.Low-voltage pulse magnetic field sterilization technology is still
It is a technical problem.
Paddy kernel is made of clever (shell) and 2 part of caryopsis (brown rice), and rice husk is sloughed through ridge paddy machine in rice milling processing
For caryopsis, also known as brown rice.In brown rice, pericarp and kind skin account for about 2%, and aleurone accounts for 5%~6%, and plumule accounts for 2.5%~
3.5%, endosperm accounts for 88%~93%.In brown rice pearling, pericarp, kind skin and aleurone are stripped together, therefore this 3 layers are often closed
Referred to as rice bran layer.Rice bran and rice embryo protein rich in, fat, dietary fiber, B family vitamin and minerals, nutriture value
Value is very high, anticancer, prevention and treatment diabetes, hypercholesterolemia and obesity and other effects is proven to have, to human health and modern times
The prevention and treatment of ciril disease are of great significance.Therefore, brown rice is classified as full cereal healthy food by U.S. FDA recently, proposal
It is directly edible, it means that brown rice, which substitutes polished rice, will become the new direction of future health diet as staple food.Various brown rice simultaneously
The development of functional food such as brown rice beverage, cake, condiment etc. is also surging forward.However, since brown rice loses glume protection,
Embryo and endosperm are in naked state, it is easy to be aoxidized；And plumule is remained, there is strong breathing and other physiological actions；More
Importantly, the lipid content of brown rice is higher, hydrolysis caused by lipase and lipoxidase easily occur in storage
Oxidation reaction caused by enzyme, cause it is water-disintegrable it is rancid, oxidisability is rancid, causes brown rice quality decline, generate acidity increase, viscosity
A series of variations such as decline.The safe storage phase of brown rice, is 60 days by index of content of fatty acid under general room temperature, with just aldehyde
It is 80 days for index.This unstability of brown rice not only seriously restricts implementation of the brown rice as storage circulation object, also greatly
The deep development for limiting to degree unpolished-rice nutrient value utilizes.
Based on brown rice nutritive value abundant and to the benefit of human body, how many countries all improve brown rice in research
Storage stability, safety and improve its edible quality.The research for making a general survey of domestic and international brown rice storage-stable technology, there is suitable one
Part concentrates in the control of brown rice storage condition, including moisture, temperature, vacuum, controlled atmosphere and stifling etc..Although obtaining certain effect
Fruit, wherein the cryopreservation technology of Japan is very mature, cryopreservation is considered as the best method of brown rice storage.But
The investment maintenance cost of entire storage and transportation system is high, is not suitable for popularizing, and cannot fundamentally inhibit the quality of brown rice bad
Become, this is attributed to lipase activity in brown rice.Therefore, a kind of quick, economic stability brown rice lipase activity and improvement edible product
The processing method of matter, it appears particularly important.Recent domestic also has many researchers to be dedicated to brown rice enzyme deactivation stabilization technique
Research successively has the methods of heat treatment, organic solvent processing, ethanol stable, radiation stabilized, superheated steam stabilization, but chemical
The residual of reagent, the safety of irradiation and the loss for being heat-treated nutritional ingredient etc., so that the research of husked rice and stabilizing technology is stagnated
Before not.
In the prior art, brown rice classics antihunt means one of of the microwave as nearly 20 years of research, not only enzyme deactivation effect is aobvious
Work, and with heating, rapid, uniform, small on nutritional ingredient influence, power consumption is small, simple operation and other advantages.Meanwhile ultrasound
Method is the enzyme deactivation technology of emerging development in recent years, has significant enzyme deactivation effect when applying with pressure, heat integration.Chinese invention patent
" a kind of ultrasonic-microwave combines the method for stable brown rice " (application number 201110142925.6) carries out ultrasonic-microwave to brown rice sample
Pulse processing, then microwave drying is carried out to the remaining processing medium of brown rice, the ppl event degree of brown rice is by 160.1 ± 3.1 μ
Mol/ (gh) is down to 5 μm of ol/ (gh) hereinafter, enzyme deactivation rate > 96.9%, the brown rice obtained through the inventive method, rice and
Rice bran is not easy rancid, has higher stability, but this method broken rice rate (imperfect grain) reaches 20% or more, reduces brown rice
Commodity value；Chinese invention patent " one kind is used for processing method for stabilizing enzyme activity of brown rice lipase and improving eating quality "
(application number 201310439742.X) is carried out to brown rice sample plus water adjusts initial water content as 13.6-18.0%, and preservative film is close
Envelope, is heated, design parameter using the method for infra-red radiation are as follows: and the temperature of infrared radiation panel is 398.6 ± 11.9 DEG C,
Infra-red radiation distance is 10-30cm, and the processing time is 3-7min；After treatment is cooled to room temperature, crushes, sieving, the rouge of brown rice
Fat acid value reduces by 3.8 standard units's (mg KOH/100g brown rice), enzyme deactivation rate > 86.1%, but this method broken rice rate is (imperfect
Grain) reach 25% or more, reduce the commodity value of brown rice.
The magnetic field sterilizing unit that voltage is low, has a safety feature how is developed, and is applied to and enzyme deactivation, sterilizing is carried out to brown rice
Processing, the technical method for improving the stabilizing effect of brown rice, and brown rice broken rice rate (imperfect grain) capable of being effectively reduced are still a
Technical problem.
Summary of the invention
It is an object of the invention to magnetic field sterilizing unit, by impulse electric field generating system, pulsed magnetic field action system and
Controller composition, it is characterised in that: the impulse electric field generating system by input electric wire, pressure regulator, booster, rectifier,
Current limiter, charge switch, charging circuit, charge circuit and capacitor composition；Input electric wire is connect with pressure regulator, pressure regulator and liter
Depressor is by circuit connection, and booster and rectifier, current limiter are by circuit connection, by filling between rectifier and capacitor
Circuit, charge circuit connection, are equipped with charge switch on charging circuit；
The impulse electric field generating system, input electric wire are 220V alternating current, are passed through again after pressure regulator burning voltage
Booster increases voltage and current limiter current limliting, has obtained the alternating current that voltage and current is met the requirements, the alternating current is through over commutation
Device rectification becomes DC power supply, and when charge switch closure, DC power supply charges to capacitor, when charge switch disconnects
When, charging terminates.
Preferably, the current limiter is the ac capacitor of 360 μ F；
Preferably, the rectifier is high-voltage rectification silicon stack；
Preferably, the capacitor is the electrolytic capacitor of 4 10000 μ F, using low pressure charging technique, charging voltage
It is continuously adjusted within the scope of 400~450V；
Shown in Fig. 2, the pulsed magnetic field action system is by capacitor, discharge circuit, discharge loop, discharge switch, cold
But water interlayer tank, glass tube, coil, screw agitation shaft, motor, storage bin, gear stick and pedestal composition；The coil and capacitor
Device is connected by discharge circuit, discharge loop, and discharge switch is equipped on discharge circuit；The cooling water sandwich tank is circle
Cylindricality sandwich, coil are mounted in the interlayer set of cooling water sandwich tank, are equipped with glass in the inner cavity of cooling water sandwich tank
Glass pipe, fixing sleeve is equipped with gear stick in the inner cavity of glass tube, and the space between the inner cavity and gear stick of glass tube is as brown rice material
Enzyme deactivation sterilization operation space, the inner cavity lower end of glass tube is equipped with screw agitation shaft, and screw agitation shaft is connected to motor；It is cooling
Water interlayer tank, glass tube and motor are fixed on the base；The upper surface of glass tube is equipped with feed pipe, the lower end peace of glass tube
Equipped with discharge pipe, discharge pipe is brown rice material outlet, is placed with storage bin below discharge pipe；In cooling water sandwich tank
Interlayer set upper and lower end be separately installed with cooling water outlet and cooling water inlet, cooling water outlet and cooling water inlet are symmetrically pacified
Mounted in the left and right end that the interlayer of cooling water sandwich tank covers or front and back ends；
The coil, the preferred coil number of plies are 4, the number of turns 80；
The gear stick, waist are cylindrical structure, and top is cone, the intracavity diameter of glass tube and gear stick it is outer
Diameter difference is controlled in 1.0-1.5cm；
The specific work process of pulsed magnetic field action system: brown rice material is put into glass tube by feed pipe average rate, is put
Electric switch conducting, discharge loop conducting, capacitor start to discharge to coil, and the pulsed magnetic field that coil generates is to brown rice material
Enzyme deactivation sterilization processing is carried out, recirculated cooling water is entered in the interlayer set of cooling water sandwich tank by cooling water inlet, circulating cooling
Water is cooling by coil in the interlayer set of cooling water sandwich tank, and recirculated cooling water is discharged by cooling water outlet again, and discharge follows
Ring cooling water recycles again after supercooling；Start motor, motor drive screw agitation shaft rotation, by brown rice material from glass
It is transported in storage bin in glass pipe by discharge pipe, completes the output process of brown rice material；
The speed of the screw agitation shaft, rotation conveying brown rice material is killed with the enzyme deactivation of brown rice material in a glass tube
The bacterium processing time matches, and matches with the speed of feed pipe input brown rice material；
The controller is made of delay turn-on power loss module, input terminal I, input terminal II, output end I, output end II,
The turn-on power loss module that is delayed is charged and discharged the period for adjusting；Delay turn-on power loss module both ends are connected with input terminal I, input
Hold II, output end I, output end II, input terminal I connect with charging circuit, and input terminal II is connect with discharge circuit, output end I and
Charge switch connection, output end II are connect with discharge switch；
The delay turn-on power loss module is charged and discharged the period for adjusting, specific work process: function is connected in delay
Energy module is provided with 4 timing cycles: T1、T2、T3、T4, charging-discharging cycle T1、T2、T3、T4Total ascent time, T1、T2、T3、T4
It is adjusted within the scope of 0.1-10s；After input terminal I, input terminal II are connected, the timing working of delay turn-on power loss module starts to transport
Row, rectifier pass through T1Time service, after the input terminal I of charging circuit and connection becomes high level, be delayed turn-on power loss
Module connects charge switch and starts to charge to capacitor 7, charging time T2, charging terminates, delay turn-on power loss module cutting
Charge switch, charge switch are disconnected by connecting；Then, delay turn-on power loss module passes through T3Time interval, interval time knot
Beam, delay turn-on power loss module connect discharge switch, and capacitor 7 starts to discharge, discharge time T4, electric discharge terminates, and delay connects
Logical functional module cuts off discharge switch, and discharge switch is disconnected by connecting, and thus charging, a discharge cycle terminate, and recycles past
The charging and discharging course of work can be completed again；T2With T4Between have a T3Time interval, avoid charge and discharge simultaneously into
Row, protects line security.
Another object of the present invention is a kind of method of stable brown rice quality, using pulsed magnetic field sterilizing unit, with rough
Rice is sample, and enzyme deactivation and method for disinfection are following steps:
(1) prepare: brown rice material is put into glass tube from feed pipe；Open cooling water, cooling water is from cooling water outlet
It enters in the interlayer set of cooling water sandwich tank；
(2) adjustment setting pulsed magnetic field sterilizing unit parameter: setting voltage on capacitor 400-450V, setting delay connect
Logical functional module charging-discharging cycle T1、T2、T3、T4Total ascent time is 9.5-10.6s, specific T1For 0.1-0.5s, T2For 4-5s, T3
For 0.5-1s, T4For 4-5s, it is 25-30 times that pulsed magnetic field action number, which is arranged, the effective stop of brown rice material in a glass tube
Sterilizing time is 237.5s-318s；Motor speed is adjusted according to the effective stop sterilizing time of brown rice material in a glass tube, into
And controlling auger axle speed and brown rice the material discharging speed from glass tube, i.e. screw agitation shaft rotation conveys brown rice material
Speed, match with the enzyme deactivation sterilization processing time of brown rice material in a glass tube, the charging rate and discharging of feed pipe
Speed matches；
(3) enzyme deactivation and sterilization: unbalanced pulse magnetic field sterilizing unit power switch powers on, to glass tube brown rice material into
Row pulsed magnetic field sterilization processing；Then start motor, the rotation of motor drive screw agitation shaft passes through brown rice material from glass tube
It crosses discharge pipe to be transported in storage bin, is continuously finished enzyme deactivation, the sterilization process of brown rice material；
(4) detect: the material after sterilization is through enzyme activity dynamics, imperfect grain and Bacteria Detection.
The positive effect of the present invention:
1, the pulsed magnetic field sterilizing unit of the invention, voltage is low, has a safety feature, and can be continuously finished going out for brown rice material
Enzyme and sterilizing process, it is easy to operate；
2, enzyme deactivation, sterilization treatment are carried out to brown rice using pulsed magnetic field sterilizing unit, enzyme deactivation, sterilization effect are good, not only mention
The stabilizing effect of high brown rice, and have many advantages, such as that processing is rapid, uniform, small on nutritional ingredient influence, broken rice rate is lower.
Detailed description of the invention
Fig. 1 is impulse electric field generating system circuit theory schematic diagram of the invention；
Fig. 2 is pulsed magnetic field action system schematic of the invention；
Fig. 3 is controller schematic diagram of the invention；
Detailed description of the invention, 1- input electric wire, 2- pressure regulator, 3- booster, 4- rectifier, 5- current limiter, 6- charge switch, 7-
Capacitor, 8- discharge switch, 9- cooling water sandwich tank, 10- feed pipe, 11- glass tube, 12- coil, 13- brown rice material,
14- cooling water inlet, 15- cooling water outlet, 16- screw agitation shaft, 17- motor, 18- discharge pipe, 19- storage bin, 20- base
Seat, 21- delay turn-on power loss module, 22- charging circuit, 23- charge circuit, 24- discharge circuit, 25- discharge loop, 26- are defeated
Enter and holds I, 27- input terminal II, 28- output end I, 29- output end II, 30- gear stick；
Specific embodiment
The present invention is described in detail With reference to embodiment.
Embodiment 1
Pulsed magnetic field sterilizing unit is made of impulse electric field generating system, pulsed magnetic field action system and controller, special
Sign is: the impulse electric field generating system is by input electric wire 1, pressure regulator 2, booster 3, rectifier 4, current limiter 5, charging
Switch 6, charging circuit 22, charge circuit 23 and capacitor 7 form；As shown in Figure 1, input electric wire 1 is connect with pressure regulator 2, adjust
Depressor 2 and booster 3 are by circuit connection, and booster 3 and rectifier 4, current limiter 5 are by circuit connection, in rectifier 4 and electricity
It is connected between container 7 by charging circuit 22, charge circuit 23, charge switch 6 is installed on charging circuit 22；
The impulse electric field generating system, the course of work are as follows: input electric wire 1 is 220V alternating current, by pressure regulator 2
Boosted device 3 increases voltage and 5 current limliting of current limiter again after burning voltage, has obtained the alternating current that voltage and current is met the requirements,
The alternating current becomes DC power supply by the rectification of rectifier 4, the DC power supply when charge switch 6 is closed, on charging circuit 22
It charges to capacitor 7, when charge switch 6 disconnects, charging terminates.
Preferably, the current limiter 5 is the ac capacitor of 360 μ F；
Preferably, the rectifier 4 is high-voltage rectification silicon stack；
Preferably, the capacitor 7 is the electrolytic capacitor of 4 10000 μ F, using low pressure charging technique, charging electricity
It is pressed within the scope of 400~450V and is continuously adjusted, the energy of single pulse is 3.80-4.00kJ；
Shown in Fig. 2, the pulsed magnetic field action system is opened by capacitor 7, discharge circuit 24, discharge loop 25, electric discharge
Close 8, cooling water sandwich tank 9, glass tube 11, coil 12, screw agitation shaft 16, motor 17, storage bin 19, gear stick 30 and pedestal 20
Composition；The coil 12 is connect with capacitor 7 by discharge circuit 24, discharge loop 25, is equipped on discharge circuit 24
Discharge switch 8；The cooling water sandwich tank 9 is cylindrical sandwich, and coil 12 is mounted on the interlayer of cooling water sandwich tank 9
In set, glass tube 11 is installed in the inner cavity of cooling water sandwich tank 9, fixing sleeve is equipped with gear stick in the inner cavity of glass tube 11
30, enzyme deactivation sterilization operation space of the space as brown rice material 13 between the inner cavity and gear stick 30 of glass tube 11；Glass tube 11
Inner cavity lower end be set with screw agitation shaft 16, screw agitation shaft 16 is connect with motor 17；Cooling water sandwich tank 9, glass tube 11
And motor 17 is fixed on pedestal 20；The upper surface of glass tube 11 is equipped with feed pipe 10, and the lower end of glass tube 11 is equipped with
Discharge pipe 18, discharge pipe 18 are the outlet of brown rice material 13, and the lower section of discharge pipe 18 is placed with storage bin 19；In cooling water
The interlayer set upper and lower end of Sandwich pot 9 is separately installed with cooling water outlet 15 and cooling water inlet 14, cooling water outlet 15 and cooling
Water inlet 14 is symmetrically mounted on left and right end or the front and back ends of 9 interlayer of cooling water sandwich tank set；
The coil 12, the preferred coil number of plies are 4, the number of turns 80；
The gear stick 30, waist are cylindrical structure, and top is cone, the intracavity diameter and gear stick of glass tube 11
30 outer diameter difference is controlled in 1.0-1.5cm, and brown rice material 13 is put into glass tube 11 from feed pipe 10, passes through the resistance of gear stick 30
Hinder the space being equably filled in 13 thin layer of brown rice material between the inner cavity of glass tube 11 and gear stick 30；
The specific work process of pulsed magnetic field action system: brown rice material 13 is put into glass tube 11 by 10 average rate of feed pipe
In, discharge switch 8 is connected, and discharge loop 25 is connected, and capacitor 7 starts to discharge to coil 12, the pulse that coil 12 generates
Magnetic field carries out enzyme deactivation sterilization processing to brown rice material 13, and recirculated cooling water enters cooling water sandwich tank 9 by cooling water inlet 14
In interlayer set, recirculated cooling water is cooling by coil 12 in 9 interlayer of cooling water sandwich tank set, and recirculated cooling water passes through cooling water again
15 discharge of outlet, the recirculated cooling water of discharge recycle again after supercooling；Start motor 17,17 drving sprial of motor stirs
The rotation of axis 16 is mixed, brown rice material 13 is transported in storage bin 19 from glass tube 11 by discharge pipe 18, brown rice object is completed
The output process of material 13；
The screw agitation shaft 16, the speed and brown rice material 13 of rotation conveying brown rice material 13 are in glass tube 11
The enzyme deactivation sterilization processing time match, and with feed pipe 10 input brown rice material 13 speed match, make brown rice material
13 enzyme deactivation sterilization processing results meet the technical standards index；
The controller is by delay turn-on power loss module 21, input terminal I 26, input terminal II 27, output end I 28, defeated
Outlet II 29 is formed, and delay turn-on power loss module 21 is charged and discharged the period for adjusting；As shown in figure 3, delay turn-on power loss
21 both ends of module are connected with input terminal I 26, input terminal II 27, output end I 28, output end II 29, wherein input terminal I 26
It is connect with charging circuit 22, input terminal II 27 is connect with discharge circuit 24, and output end I 28 is connect with charge switch 6, output end
II 29 is connect with discharge switch 8；
The delay turn-on power loss module 21 is charged and discharged the period for adjusting, specific work process: delay is connected
Functional module 21 is provided with 4 timing cycles: T1、T2、T3、T4, charging-discharging cycle T1、T2、T3、T4Total ascent time, T1、T2、
T3、T4It is adjusted within the scope of 0.1-10s；After input terminal I 26, input terminal II 27 are connected, delay turn-on power loss module 21 is determined
When work bring into operation, rectifier 4 pass through T1Time service, when the input terminal I 26 of charging circuit (22) and connection becomes high
After level, delay turn-on power loss module 21 connects charge switch 6 and starts to charge to capacitor 7, charging time T2, charging
Terminate, delay turn-on power loss module 21 cuts off charge switch 6, and charge switch 6 is disconnected by connecting；Then, be delayed turn-on power loss
Module 21 passes through T3Time interval, interval time terminate, and delay turn-on power loss module 21 connects discharge switch 8, and capacitor 7 starts
It discharges coil 12, the pulsed magnetic field that coil 12 generates is to the progress enzyme deactivation sterilization processing of brown rice material 13, discharge time
T4, electric discharge terminates, and delay turn-on power loss module 21 cuts off discharge switch 8, and discharge switch 8 is disconnected by connecting, and thus one is filled
Electricity, discharge cycle terminate, and move in circles and the charging and discharging course of work can be completed；T2With T4Between have a T3Time interval is kept away
Exempt from charge and discharge while having carried out, protects line security.
Embodiment 2
A kind of method of stable brown rice quality, uses pulsed magnetic field sterilizing unit, using brown rice as sample, enzyme deactivation and sterilization
Method is following steps:
(1) prepare: brown rice material 13 is put into glass tube 11 from feed pipe 10；Open cooling water, cooling water is from cooling
Water out 15 enters in 9 interlayer of cooling water sandwich tank set；
(2) adjustment setting pulsed magnetic field sterilizing unit parameter: charging voltage 400V, setting delay turn-on power loss module 21 are filled
Discharge cycle T1、T2、T3、T4Total ascent time is 10.6s:T1For 0.1s, T2For 5s, T3For 0.5s, T4For 5s: pulsed magnetic field is arranged
Acting on number is 30 times, and effective stop sterilizing time of the brown rice material 13 in glass tube 11 is that (charging-discharging cycle is 318s
10.6s × pulsed magnetic field action number 30 times)；According to effective stop sterilizing time adjustment of the brown rice material 13 in glass tube 11
17 revolving speed of motor, and then control 16 speed of screw agitation shaft and brown rice material 13 discharging speed from glass tube 11, i.e. spiral is stirred
The speed for mixing the rotation conveying brown rice material 13 of axis 16, with enzyme deactivation sterilization processing time phase of the brown rice material 13 in glass tube 11
Match, charging rate and the discharging speed of feed pipe 10 match；
(3) enzyme deactivation and sterilization: unbalanced pulse magnetic field sterilizing unit power switch powers on, to 11 brown rice material of glass tube
13 carry out pulsed magnetic field sterilization processing；Then start motor 17,17 drving sprial agitating shaft 16 of motor rotation, by brown rice material 13
It is transported in storage bin 19 from discharge pipe 18 is passed through in glass tube 11, is continuously finished 13 sterilization process of brown rice material；Pay attention to receiving
Collection is put into the brown rice material 13 that do not sterilized of 11 bottom of glass tube for the first time, needs to repeat back to and take at row enzyme deactivation sterilization
Reason.
(4) detect: the material after sterilization is through enzyme activity dynamics, imperfect grain and Bacteria Detection.
Embodiment 3
A kind of method of stable brown rice quality, uses pulsed magnetic field sterilizing unit, using brown rice as sample, enzyme deactivation and sterilization
Method is following steps:
(1) prepare: brown rice material 13 is put into glass tube 11 from feed pipe 10；Open cooling water, cooling water is from cooling
Water out 15 enters in 9 interlayer of cooling water sandwich tank set；
(2) adjustment setting pulsed magnetic field sterilizing unit parameter: charging voltage 425V, setting delay turn-on power loss module 21 are filled
Discharge cycle T1、T2、T3、T4Total ascent time is 10s, wherein T1For 0.3s, T2For 4.5s, T3For 0.7s, T4For 4.5s；Arteries and veins is set
Rushing magnetic fields number is 27 times, and effective stop sterilizing time of the brown rice material 13 in glass tube 11 is 270s (charge and discharge week
Phase is 10s × pulsed magnetic field action number 27 times)；According to effective stop sterilizing time tune of the brown rice material 13 in glass tube 11
Whole 17 revolving speed of motor, and then control 16 speed of screw agitation shaft and brown rice material 13 discharging speed, i.e. spiral from glass tube 11
The speed of the rotation conveying brown rice material 13 of agitating shaft 16, with enzyme deactivation sterilization processing time phase of the brown rice material 13 in glass tube 11
Matching, charging rate and the discharging speed of feed pipe 10 match；
(3) enzyme deactivation and sterilization: unbalanced pulse magnetic field sterilizing unit power switch powers on, to 11 brown rice material of glass tube
13 carry out pulsed magnetic field sterilization processing；Then start motor 17,17 drving sprial agitating shaft 16 of motor rotation, by brown rice material 13
It is transported in storage bin 19 from discharge pipe 18 is passed through in glass tube 11, is continuously finished 13 sterilization process of brown rice material；Pay attention to receiving
Collection is put into the brown rice material 13 that do not sterilized of 11 bottom of glass tube for the first time, needs to repeat back to and take at row enzyme deactivation sterilization
Reason.
(4) detect: the material after sterilization is through enzyme activity dynamics, imperfect grain and Bacteria Detection.
Embodiment 4
A kind of method of stable brown rice quality, uses pulsed magnetic field sterilizing unit, using brown rice as sample, enzyme deactivation and sterilization
Method is following steps:
(1) prepare: brown rice material 13 is put into glass tube 11 from feed pipe 10；Open cooling water, cooling water is from cooling
Water out 15 enters in 9 interlayer of cooling water sandwich tank set；
(2) adjustment setting pulsed magnetic field sterilizing unit parameter: charging voltage 450V, setting delay turn-on power loss module 21 are filled
Discharge cycle T1、T2、T3、T4Total ascent time is 9.5s, wherein T1For 0.5s, T2For 4s, T3For 1s, T4For 4s: pulsed magnetic field is arranged
Acting on number is 25 times, and effective stop sterilizing time of the brown rice material 13 in glass tube 11 is that (charging-discharging cycle is 237.5s
9.5s × pulsed magnetic field action number 25 times)；According to effective stop sterilizing time adjustment of the brown rice material 13 in glass tube 11
17 revolving speed of motor, and then control 16 speed of screw agitation shaft and brown rice material 13 discharging speed from glass tube 11, i.e. spiral is stirred
The speed for mixing the rotation conveying brown rice material 13 of axis 16, with enzyme deactivation sterilization processing time phase of the brown rice material 13 in glass tube 11
Match, charging rate and the discharging speed of feed pipe 10 match；
(3) enzyme deactivation and sterilization: unbalanced pulse magnetic field sterilizing unit power switch powers on, to 11 brown rice material of glass tube
13 carry out pulsed magnetic field sterilization processing；Then start motor 17,17 drving sprial agitating shaft 16 of motor rotation, by brown rice material 13
It is transported in storage bin 19 from discharge pipe 18 is passed through in glass tube 11, is continuously finished 13 sterilization process of brown rice material；Pay attention to receiving
Collection is put into the brown rice material 13 that do not sterilized of 11 bottom of glass tube for the first time, needs to repeat back to and take at row enzyme deactivation sterilization
Reason.
(4) detect: the material after sterilization is through enzyme activity dynamics, imperfect grain and Bacteria Detection.
Comparative example 1
Using patent " a kind of ultrasonic-microwave combines the method for stable brown rice " (application number 201110142925.6) to brown rice
Sample is handled, and quality testing is carried out after processing.
Comparative example 2
Using patent " one kind is used for processing method for stabilizing enzyme activity of brown rice lipase and improving eating quality " (application number
201310439742.X) brown rice sample is handled, quality testing is carried out after processing.
Comparative example 3: it does not deal with
To brown rice sample detection unsound grain and microbiological contamination sum, brown rice 100g is then weighed, crushed 60 meshes, is obtained rough
Rice flour carries out the measurement of ppl event degree.
Testing result
Embodiment 2,3,4 and 1,2,4 testing result of comparative example are shown in Table 1: ppl event degree uses GB/T5523 grain, oil
The measuring method of the ppl event degree of material, unsound grain is using 5494 grain and oil detection grain of GB/T, the impurity, endless of oil plant
Kind grain is examined.
Table 1
The pulsed magnetic field sterilizing unit of the invention, 1,2 pair of sample treatment of embodiment 2,3,4 and comparative example, not with comparative example 3
Processing is compared, first is that ppl event degree has reduction than comparative example 3, but 2 effect of comparative example is poor, and embodiment 2,3,4 has bright
Aobvious technical effect；Second is that imperfect grain compares, after comparative example 1 and the implementation of comparative example 2, imperfect grain reaches 21% or more, reduces
The commodity rate of brown rice, and 2,3,4 imperfect grain of embodiment is identical as comparative example 3 (untreated), to the not endless of brown rice
Whole damage；Third is that total number of bacteria has reduction than comparative example 3, but comparative example 1 does not have positive effect, and embodiment 2,3,4 has obviously
Technical effect.In conclusion implementing 2,3,4 compared with comparative example 1,2,3, not only enzyme deactivation, sterilization effect are good, improve brown rice
Quality stability, moreover it is possible to keep the integrality of brown rice.
Claims (5)
1. a kind of magnetic field sterilizing unit impulse electric field generating system, it is characterised in that: by input electric wire (1), pressure regulator (2), rise
Depressor (3), rectifier (4), current limiter (5), charge switch (6), charging circuit (22), charge circuit (23) and capacitor (7)
Composition；Input electric wire (1) connect with pressure regulator (2), and pressure regulator (2) and booster (3) pass through circuit connection, booster (3) and
Rectifier (4), current limiter (5) are passed through charging circuit (22) between rectifier (4) and capacitor (7), are filled by circuit connection
Electrical circuit (23) connection, is equipped with charge switch (6) on charging circuit (22).
2. a kind of magnetic field sterilizing unit impulse electric field generating system according to claim 1, it is characterised in that: the arteries and veins
Electric field generation system is rushed, input electric wire (1) is 220V alternating current, and boosted device (3) rises again after pressure regulator (2) burning voltage
High voltage and current limiter (5) current limliting, obtain alternating current, which becomes DC power supply by rectifier (4) rectification, work as charging
When switching (6) closure, the DC power supply on charging circuit (22) charges to capacitor (7), when charge switch (6) disconnect
When, charging terminates.
3. a kind of magnetic field sterilizing unit impulse electric field generating system according to claim 1, it is characterised in that: the limit
Flow the ac capacitor that device (5) are 360 μ F.
4. a kind of magnetic field sterilizing unit impulse electric field generating system according to claim 1, it is characterised in that: described is whole
Flowing device (4) is high-voltage rectification silicon stack.
5. a kind of magnetic field sterilizing unit impulse electric field generating system according to claim 1, it is characterised in that: the electricity
Container (7) is the electrolytic capacitor of 4 10000 μ F, and charging voltage is continuously adjusted within the scope of 400~450V.
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| CN201821563214.XU CN209135292U (en) | 2018-09-11 | 2018-09-11 | A kind of magnetic field sterilizing unit impulse electric field generating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181229A (en) * | 2020-03-19 | 2020-05-19 | 华中科技大学 | Flat-top magnetic field generating device and method |
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2018
- 2018-09-11 CN CN201821563214.XU patent/CN209135292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111181229A (en) * | 2020-03-19 | 2020-05-19 | 华中科技大学 | Flat-top magnetic field generating device and method |
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Effective date of registration: 20200722 Address after: 723300 organic industry park, Hanzhoung, Shaanxi, Yangxian County Patentee after: YANG COUNTY ZHUHUAN ORGANIC INDUSTRY TECHNOLOGY CONSULTING Co.,Ltd. Address before: 723300 organic industry park, Hanzhoung, Shaanxi, Yangxian County Co-patentee before: YANG COUNTY ZHUHUAN ORGANIC INDUSTRY TECHNOLOGY CONSULTING Co.,Ltd. Patentee before: Zhou Baolong |