CN109619605A - A kind of infrared device for peeling of jujube vacuum impulse and method - Google Patents
A kind of infrared device for peeling of jujube vacuum impulse and method Download PDFInfo
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- CN109619605A CN109619605A CN201910109846.1A CN201910109846A CN109619605A CN 109619605 A CN109619605 A CN 109619605A CN 201910109846 A CN201910109846 A CN 201910109846A CN 109619605 A CN109619605 A CN 109619605A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N7/00—Peeling vegetables or fruit
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/06—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for washing or blanching, combined with subsequent drying
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- Polymers & Plastics (AREA)
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Abstract
The invention belongs to field of agricultural products processing, it is related to jujube without nutrition loss barking method and equipment, more particularly to a kind of infrared device for peeling of jujube vacuum impulse and method, heating is dried to jujube under vacuum conditions in this method, for jujube epidermis under the high temperature action of short time, the rapid heating in surface improves fruits and vegetables cortex temperature rapidly, moisture vaporizes under cortex, thus pressure abruptly increase；And make the protopectin between epidermis and pulp that hydrolysis occur and lose gelling, the connection between organizing destroys and separates skin and flesh, and epidermis therefore swelling fracture then slough rapidly exocuticle under the action of Fast Cooling air-flow.Compared with hot alkali peeling, have speed fast, pollution-free, the advantage of no waste water.The device includes heating room, vacuum system, infrared heating system and control system, can effectively realize that the intelligence of heating house vacuum degree is adjusted, realize the quick peeling of jujube, and the jujube outer surface water stain-free after peeling, surface are clean and tidy.
Description
Technical field
The invention belongs to agricultural product technology manufacture fields, are related to jujube without nutrition loss peeling processing method and equipment, especially
It is related to the jujube device for peeling and method of a kind of non-chemical treatment.
Background technique
Jujube is temperate crop, adaptable, and planting range is extensive.Jujube is known as the title in " iron crops ", have it is drought-enduring,
Waterlogging characteristic is the preferred breeding for developing water-saving industry of planting forest or fruit tress.Because being rich in vitamin C, while there is " natural vitamin ball " again
Good reputation, have strengthening the spleen and stomach, it is aid digestion, enrich blood and other effects.
Outside jujube is eaten in addition to part is eaten raw, or after drying, it is also usually processed as jujube slurry, as the raw material of industry.Fructus corni is
Belong to cutin crude fibre, quality is harder, and the fructus corni residual quantity such as jujube is excessively high, and the jujube of processing can be made to starch, have hardship in jujube juice
Astringent taste is unable to satisfy the mouthfeel demand of consumer.
Especially in the brewing process of Chinese data wine, bitter taste is more prominent, and the part jujube place of production is because its taste is bad, and one
Directly it is not switched on market.Therefore, solve the problems, such as that red jujube pulp, jujube juice, jujube can be improved in bitter taste in Chinese data wine production process
Economic value, and then solve the problems, such as that jujube Habitat producing process peasant buys jujube hardly possible, market of exploiting market increases economic benefit.
Studies have shown that bitter substance is mainly derived from pericarp in jujube industrialization process, pulp influences bitter substance little.Cause
This, should be avoided bringing into for fructus corni as far as possible in the process of jujube, so that the generation of bitter substance be effectively reduced.
About the technique of fruits and vegetables peeling, mainly there are heating power method and soda solution grouting at present.Heating power method mainly passes through in air
High-temperature steam or flame are heat-treated fruits and vegetables, destroy the coupling part of pericarp and skin and flesh, and then realize decortication.But due to
The pulp and pericarp of new fresh date are closely coupled, and contain abundant Vc, reduced sugar, polyphenol oxidase (POD) and peroxidase
(PPO) etc..If contacted in the hot procedure in later period with air, it is easy to browning reaction occur, pulp colour becomes brown
Color reduces its nutritional quality.
Soda solution grouting is the most commonly used in current production, mainly carries out blanching processing to fruits and vegetables with the hot water containing lye.Have
Easy to operate, equipment investment is low and the advantages such as feasibility is high, is widely used in food industry.But which energy consumption is higher, energy
Consumption can account for the one third of garden stuff processing total power consumption.And fruits and vegetables Determination of Chlorophyll, vitamin etc. is by heat effect and molten
Solution effect, content can significantly reduce, and lead to nutrient loss, product quality deterioration.In addition, a large amount of waste water of discharge are easy
Lead to a series of environmental problems such as water eutrophication etc..Fruit and vegetable crisp chip usually also needs after hot water or steam blanched decortication
Through supercooling, centrifugation removal surface moisture, after carry out the working process of next step again.This not only extends processing technology, but also increases
Equipment investment and occupied area.The problems such as causing peeling and post-production process to disconnect, easily cause flavor, quality variation.
Machine barking method, due to equipment investment height, the factors such as complicated for operation, glutinous band pulp is more, for jujube peeling, not yet greatly
The skinning machine of sizable application.
Therefore, that there is an urgent need to a kind of decortication effects is good, peeling speed is fast, the peeling of good product quality, energy-saving and environment-friendly jujube
Processing technology.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide it is a kind of it is high-efficient, easy to use, conducive to it is quick, effectively go
Except the infrared device for peeling of the vacuum impulse of jujube pericarp and method.
In order to achieve the above object, the present invention provides the following technical scheme that
A kind of infrared device for peeling of vacuum impulse, including vacuum system, infrared heating system, control system；Vacuum system
Including vacuum drying cabinet and vacuum evacuation device, infrared heating system includes airflow apparatus, heating device and plummer, control system
Including control cabinet and sensor.
Vacuum evacuation device includes: vacuum tank, vacuum pump, condensation unit, and vacuum drying cabinet side is connected by vacuum solenoid
Logical vacuum tank, vacuum tank and vacuum pump, condensation unit are sequentially connected, and pressure sensor is connected between vacuum tank and vacuum pump.
Airflow apparatus includes: brokenly empty solenoid valve, ventilation pipe and gas jet nozzle；Plummer includes: pallet, pallet position
In vacuum drying cabinet center, single layer tiling peeling object, motor can drive pallet uniform rotation on pallet；Heating device includes: red
Outer heating device, above pallet, lower section be evenly distributed with infrared heater, pallet apart from top infrared heater spacing 30~
100mm, apart from lower section 10~80mm of infrared heater spacing.
Control system further includes touch screen, control cabinet also respectively with broken empty solenoid valve, infrared heater, vacuum solenoid,
Vacuum pump, condensation unit, pressure sensor, motor are connected.
Touch screen can acquire the value of pressure sensor and temperature sensor, and pass through the broken empty electricity of single-chip microcontroller output module control
Magnet valve, vacuum solenoid and vacuum pump, the operation for condensing unit, motor.
A kind of method of the infrared peeling of jujube vacuum impulse, includes the following steps:
A) by uniform fresh cleaning up red dates and after room temperature dries, uniform monolayers are placed on pallet.It closes
Hatch door, vacuum drying cabinet is in normal pressure state at this time, and normal pressure state is local real atmosphere pressure；Broken sky solenoid valve, vacuum electric
Magnet valve is in close state, and vacuum drying cabinet is fully sealed.
B) start the infrared device for peeling of vacuum impulse, infrared peeling heating time is set separately on the touchscreen, infrared goes
Skin heating temperature, the velocity of rotation of motor, the vacuum degree of vacuum tank；Vacuum impulse removes the peel number；Vacuum infrared drying time and
Vacuum infrared drying temperature；
Wherein, infrared peeling heating time be (3~5) min, infrared peeling heating temperature (200~400) DEG C, motor
Velocity of rotation is that (3~6) turn/min, and the vacuum degree of vacuum tank 9 is 0~8kPa, and it is that (1~5) is secondary that vacuum impulse, which removes the peel number,；Very
The empty infra-red drying time is (5~20) min, and vacuum infrared drying temperature is (60~80) DEG C；
C) after clicking start button, infrared heater and motor start simultaneously, and touch screen is according to the temperature of temperature sensor
Value of feedback carries out infrared add to jujube according to the starting/stopping for setting infrared peeling heating temperature dynamic regulation infrared heater
Heat；Touch screen controls the rotation speed of motor according to the revolving speed of setting, and then controls the rotation speed of pallet；Touch screen is according to setting
Determine vacuum degree, control vacuum pump and the starting/stopping for condensing unit, when the vacuum degree of vacuum tank reaches setting value, vacuum pump
It stops working with condensation unit, when the vacuum degree of vacuum tank is lower than setting value, vacuum pump and condensation unit are started to work.
D) at the end of infrared peeling heating time, infrared heater stops working, and motor still rotates.
At this point, broken sky solenoid valve is in close state, vacuum solenoid is opened, under vacuum tank effect, drying chamber pressure
It quickly reduces, drying chamber pressure is reduced to since drying chamber pressure and is stablized, the time≤2min.After drying chamber pressure is stablized,
Vacuum solenoid is closed, and is broken sky solenoid valve and is opened, hothouse is in vacuum state at this time, exists with hothouse cool exterior air and presses
Power is poor, and room can be dried along ventilation pipe under the action of the pressure difference in cool exterior air, and in the work of gas jet nozzle
Under, high-speed flow is formed, the surface of jujube is impacted；When drying chamber pressure can rise rapidly to external atmosphere pressure and stablize, break
Empty solenoid valve is closed；It is increased to drying chamber pressure since drying chamber pressure to stablize, the time≤2min.
At this point, primary complete vacuum impulse peeling process is completed, the vacuum impulse peeling number of touch screen setting is reduced
Once；The pressure lifting process moves in circles, until stopping when vacuum impulse peeling number is reduced to 0.
E) when the infrared peeling number of vacuum impulse is 0, vacuum solenoid, infrared heater can be again turned on；It breaks at this time
Empty solenoid valve is in close state, and vacuum drying cabinet is again at vacuum state, and the jujube after peeling is under infra-red radiation effect
Surface moisture can rapid evaporation；Touch screen is according to the temperature feedback value of temperature sensor, according to vacuum infrared drying temperature dynamic
Starting/the stopping for regulating and controlling infrared heater carries out infrared heating to jujube；When reaching setting vacuum infrared drying time, very
Empty solenoid valve is closed, and is broken sky solenoid valve and is opened, and cool ambient air air-flow can be again introduced into cabinet, impact and cooling peeling jujube table
It breaks sky solenoid valve when drying chamber pressure is identical as external atmosphere pressure and closes in face.The infrared peeling process of entire vacuum impulse is complete
At.
F) terminate heating, close control system, open hothouse, take out jujube.
Compared with prior art, the beneficial effects of the present invention are:
1) the infrared barking method of vacuum impulse of a kind of jujube of the invention is quickly added using infrared mode to infrared
Heat, without causing big damage to pulp；
2) the infrared device for peeling of a kind of vacuum impulse of the invention, under the pulsatile change of dry room pressure, fast prompt drop
The indoor pressure of low vacuum drying makes the high temperature moisture Transient transformation vapor of skin and flesh junction, and moisture vaporizes under cortex, meeting
Cause pressure abruptly increase；To destroy contacting between epidermis and pulp, epidermis also can therefore swelling fracture, then in high speed cold
But exocuticle is sloughed rapidly under the action of air-flow；
3) the infrared device for peeling of a kind of vacuum impulse of the invention can effectively shorten and remove the peel processing technology, and reduce and set
Standby investment and occupied area, avoid wastewater parameter, the jujube surface layer water stain-free after peeling, conducive to the progress of post-production process.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the infrared device for peeling of jujube vacuum impulse of the present invention.
Appended drawing reference:
1, control cabinet；2, empty solenoid valve is broken；3, ventilation pipe；4, infrared heater；5, vacuum drying cabinet；6, jujube；7,
Gas jet nozzle；8, vacuum solenoid；9, vacuum tank；10, vacuum pump；11, unit is condensed；12, pressure sensor；13, electric
Machine；14, pallet；15, temperature sensor；16, touch screen.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below by Detailed description of the invention and specifically
The present invention will be described in further detail for embodiment.
The it is proposed and application of the infrared device for peeling of jujube vacuum impulse, just compensate for the defect of above-mentioned technical method, should
Technology is specifically divided into infrared heating, vacuum impulse peeling and dry three links of vacuum infrared.In heating in vacuum link, exist first
In vacuum drying cabinet, jujube is evenly heated using ceramic infrared technique, since the penetration depth of infra-red radiation is usually small
In 2mm, therefore, fructus corni and skin and flesh junction can be made to be rapidly heated, without causing to damage to interior flesh.It is removed the peel in vacuum impulse
Link quickly reduces the indoor pressure of vacuum drying, makes the high temperature moisture moment of skin and flesh junction when temperature reaches a certain value
It is converted into vapor.Moisture vaporizes under cortex, can cause pressure abruptly increase；To destroy contacting between epidermis and pulp, table
Skin also can therefore swelling fracture；Then exocuticle is sloughed rapidly under the action of Fast Cooling air-flow.In vacuum drying link, take off
Jujube surface moisture content after skin is excessively high, is unfavorable for post-production.Therefore, infrared heating is carried out to the jujube after decortication again
And vacuumize, moisture boiling point is lower under vacuum state, and the vacuum infrared of short time is dried, and can remove surface moisture, but not
Big influence can be caused to red date pulp.Jujube exfoliating process can be completed in the device and one step of technology, improves peeling jujube and produces
Quality reduces production cost.So that jujube removes the peel process time, equipment investment and occupied area reduce significantly, and effectively
The quality for improving product, is the New Processing for having much potentiality.
The infrared device for peeling of a kind of vacuum impulse of the invention, the peeling for jujube are processed.
As shown in Figure 1, a kind of infrared device for peeling of vacuum impulse of the present invention includes vacuum system, infrared heating system, control
System processed；Wherein,
Vacuum system includes vacuum drying cabinet 5, vacuum tank 9, vacuum pump 10, condensation unit 11.5 side of vacuum drying cabinet is logical
It crosses vacuum solenoid 8 and is connected to vacuum tank 9, vacuum tank 9 and vacuum pump 10, condensation unit 11 are sequentially connected, vacuum tank 9 and vacuum pump
Pressure sensor 12 is connected between 10.The vacuum pump 10 is water-ring vacuum pump, condensation 11 power of unit and vacuum pump machine
10 power of group match, can effective holding vacuum pump unit 10 operation.
Infrared heating system includes broken empty solenoid valve 2, ventilation pipe 3, infrared heater 4, gas jet nozzle 7, motor
13, pallet 14；Motor 13 is fixed on 5 bottom of vacuum drying cabinet, and by support rod connecting trays 14, pallet 14 is located at vacuum drying
5 center of room, motor 13 can drive 14 uniform rotation of pallet；14 top of pallet, lower section are evenly distributed with infrared heater 4, pallet
14 apart from top infrared heater 30~100mm of spacing, on lower section 10~80mm of infrared heater spacing, the pallet 14
Single layer tiling jujube 6.
Wherein top infrared heater 4 is staggered with gas jet nozzle 7 in same plane；7 nozzle of gas jet with
Ventilation pipe 3 is connected, and ventilation pipe 3 is connected with broken empty solenoid valve 2, when broken empty solenoid valve 2 is opened, vacuum drying cabinet 5
It can be connected to outside air, when broken empty solenoid valve 2 is opened, 5 good seal of vacuum drying cabinet.
Control system includes control cabinet 1, temperature sensor 15, touch screen 16, breaks empty solenoid valve 2, vacuum solenoid 13, excellent
Selection of land, control cabinet 1 also respectively with broken empty solenoid valve 2, infrared heater 4, vacuum solenoid 8, vacuum pump 10, condensation unit 11,
Motor 13 is connected.
Temperature sensor 15 is located at 6 top about 3~8mm of jujube, and touch screen 16 can acquire pressure sensor 12 and temperature
The value of sensor 15, and pass through the broken empty solenoid valve 2 of single-chip microcontroller output module control, vacuum solenoid 8 and vacuum pump 10, cold
The operation of solidifying unit 11, motor 13.
A kind of method of the infrared peeling of jujube vacuum impulse, includes the following steps:
A) uniform new fresh date 6 is cleaned up and after room temperature dries, uniform monolayers are placed on pallet 14.It closes
Hatch door is closed, vacuum drying cabinet 5 is in normal pressure state at this time, and normal pressure state is local real atmosphere pressure；It is broken sky solenoid valve 2, true
Empty solenoid valve 8 is in close state, and vacuum drying cabinet 5 is fully sealed.
B) start the infrared device for peeling of vacuum impulse, infrared peeling heating time, infrared is set separately on touch screen 16
Remove the peel heating temperature, the velocity of rotation of motor 13, the vacuum degree of vacuum tank 9；Vacuum impulse removes the peel number；When vacuum infrared is dry
Between and vacuum infrared drying temperature；
Wherein, infrared peeling heating time is (3~5) min, infrared peeling heating temperature (200~400) DEG C, motor 13
Velocity of rotation be that (3~6) turn/min, the vacuum degree of vacuum tank 9 is 0~8kPa, and it is that (1~5) is secondary that vacuum impulse, which removes the peel number,；
Vacuum infrared drying time is (5~20) min, and vacuum infrared drying temperature is (60~80) DEG C；
C) after clicking start button, infrared heater 4 and motor 13 start simultaneously, and touch screen 16 is according to temperature sensor 15
Temperature feedback value, according to the starting/stopping for setting infrared peeling heating temperature dynamic regulation infrared heater 4, to jujube 6 into
Row infrared heating；Touch screen 16 controls the rotation speed of motor 13 according to the revolving speed of setting, and then controls the rotation speed of pallet 14
Degree；Touch screen 16 is according to setting vacuum degree, control vacuum pump 10 and the starting/stopping for condensing unit 11, when the vacuum of vacuum tank 9
When degree reaches setting value, vacuum pump 10 and condensation unit 11 stop working, when the vacuum degree of vacuum tank 9 is lower than setting value, very
Sky pump 10 and condensation unit 11 are started to work.
D) at the end of infrared peeling heating time, infrared heater 4 stops working, and motor 13 still rotates.
At this point, broken sky solenoid valve 2 is in close state, vacuum solenoid 8 is opened, under the effect of vacuum tank 9, hothouse 5
Pressure quickly reduces, and 5 pressure of hothouse is reduced to since 5 pressure of hothouse and is stablized, the time≤2min.When 5 pressure of hothouse
After stabilization, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, and hothouse 5 is in vacuum state at this time, cold with hothouse outside
There are pressure difference, cool exterior airs room 5 is dried along ventilation pipe 3 under the action of the pressure difference for air, and in gas
Under the action of jet nozzle 7, high-speed flow is formed, impacts the surface of jujube 6；5 pressure of hothouse can rise rapidly to, when with it is outer
Boundary's atmospheric pressure and when stablizing, breaks sky solenoid valve 2 and closes；It is increased to 5 pressure of hothouse since 5 pressure of hothouse to stablize, the time
≤2min。
At this point, primary complete vacuum impulse peeling process is completed, the vacuum impulse peeling number of touch screen setting is reduced
Once；The pressure lifting process moves in circles, until stopping when vacuum impulse peeling number is reduced to 0.
E) when the infrared peeling number of vacuum impulse is 0, vacuum solenoid 8, infrared heater 4 can be again turned on；At this time
Broken sky solenoid valve 8 is in close state, and vacuum drying cabinet 5 is again at vacuum state, and the jujube 6 after peeling is made in infra-red radiation
It can rapid evaporation with layer moisture；Touch screen 16 is dried according to the temperature feedback value of temperature sensor 15 according to vacuum infrared
Starting/stopping of temperature dynamic regulation infrared heater 4 carries out infrared heating to jujube 6；When reaching, setting vacuum infrared is dry
When the time, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, cool ambient air air-flow can be again introduced into cabinet, impact and cold
But jujube surface is removed the peel, when 5 pressure of hothouse is identical as external atmosphere pressure, sky solenoid valve 8 is broken and closes.Entire vacuum impulse is red
Outer peeling process is completed.
F) terminate heating, close control system, open hothouse 5, take out jujube 6.
Embodiment 1
A) uniform new fresh date 6 is cleaned up and after room temperature dries, uniform monolayers are placed on pallet 14.It closes
Hatch door is closed, vacuum drying cabinet 5 is in normal pressure state at this time, and normal pressure state is local real atmosphere pressure；It is broken sky solenoid valve 2, true
Empty solenoid valve 8 is in close state, and vacuum drying cabinet 5 is fully sealed.
Wherein, pallet 14 is apart from top infrared heater spacing 40mm, apart from lower section infrared heating plate spacing 30mm, temperature
Sensor 15 is located at 6 top about 5mm of jujube.
B) start the infrared device for peeling of vacuum impulse, infrared peeling heating time, infrared is set separately on touch screen 16
Remove the peel heating temperature, the velocity of rotation of motor 13, the vacuum degree of vacuum tank 9；Vacuum impulse removes the peel number；When vacuum infrared is dry
Between and vacuum infrared drying temperature；
Wherein, infrared peeling heating time is set as 3min, 300 DEG C of infrared peeling heating temperature, the rotation speed of motor 13
Degree is 4 turns/min, and the vacuum degree of vacuum tank 9 is 5kPa, and it is 3 times that vacuum impulse, which removes the peel number,；Vacuum infrared drying time is
15min, vacuum infrared drying temperature are 70 DEG C；
C) after clicking start button, infrared heater 4 and motor 13 start simultaneously, and touch screen 16 is according to temperature sensor 15
Temperature feedback value, according to the starting/stopping for setting infrared peeling heating temperature dynamic regulation infrared heater 4, to jujube 6 into
Row infrared heating；At this point, jujube surface temperature rises to about 110 DEG C, since the penetration depth of infra-red radiation is usually less than 2mm,
Therefore, fructus corni and skin and flesh junction can be made to be rapidly heated, without causing to damage to interior flesh.
Touch screen 16 controls the rotation speed of motor 13 according to the revolving speed of setting, and then controls the rotation speed of pallet 14；
Touch screen 16 is according to setting vacuum degree, control vacuum pump 10 and the starting/stopping for condensing unit 11, when the vacuum degree of vacuum tank 9
When reaching setting value, vacuum pump 10 and condensation unit 11 stop working, when the vacuum degree of vacuum tank 9 is lower than setting value, vacuum
Pump 10 and condensation unit 11 are started to work.
D) at the end of infrared peeling heating time, infrared heater 4 stops working, and motor 13 still rotates.
At this point, broken sky solenoid valve 2 is in close state, vacuum solenoid 8 is opened, under the effect of vacuum tank 9, hothouse 5
Pressure quickly reduces, and 5 pressure of hothouse is reduced to since 5 pressure of hothouse and is stablized, the time≤2min.It is removed the peel in vacuum impulse
Link quickly reduces the indoor pressure of vacuum drying, makes the high temperature moisture moment of skin and flesh junction when temperature reaches a certain value
It is converted into vapor.Moisture vaporizes under cortex, can cause pressure abruptly increase；To destroy contacting between epidermis and pulp, table
Skin also can therefore swelling fracture；
After 5 pressure of hothouse is stablized, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, hothouse 5 is in true at this time
Dummy status, with hothouse cool exterior air there are pressure difference, cool exterior air can be under the action of the pressure difference along ventilation pipe 3
Room 5 is dried, and under the action of gas jet nozzle 7, forms high-speed flow, impacts the surface of jujube 6, loose jujube
Crust can be sloughed rapidly under the action of Fast Cooling air-flow；5 pressure of hothouse can rise rapidly to, when with external atmosphere pressure
And when stablizing, breaks sky solenoid valve 2 and close；It is increased to 5 pressure of hothouse since 5 pressure of hothouse to stablize, the time≤2min.
At this point, primary complete vacuum impulse peeling process is completed, the vacuum impulse peeling number of touch screen setting is reduced
Once；The pressure lifting process moves in circles, until stopping when vacuum impulse peeling number is reduced to 0.
E) in vacuum drying link, the jujube surface moisture content after decortication is excessively high, is unfavorable for post-production.Therefore, then
The secondary jujube to after decortication carries out infrared heating and vacuumizes, and moisture boiling point is lower under vacuum state, the vacuum infrared of short time
It is dried, surface moisture can be removed, but not cause big influence to red date pulp.
When the infrared peeling number of vacuum impulse is 0, vacuum solenoid 8, infrared heater 4 can be again turned on；It breaks at this time
Empty solenoid valve 8 is in close state, and vacuum drying cabinet 5 is again at vacuum state, and the jujube 6 after peeling is acted in infra-red radiation
Layer moisture can rapid evaporation；Touch screen 16 dries temperature according to vacuum infrared according to the temperature feedback value of temperature sensor 15
Starting/the stopping for spending dynamic regulation infrared heater 4 carries out infrared heating to jujube 6；When reaching setting vacuum infrared drying
Between when, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, and cool ambient air air-flow can be again introduced into cabinet, is impacted simultaneously cooling
Jujube surface is removed the peel, when 5 pressure of hothouse is identical as external atmosphere pressure, sky solenoid valve 8 is broken and closes.Entire vacuum impulse is infrared
Peeling process is completed.
F) terminate heating, close control system, open hothouse 5, take out jujube 6.
Embodiment 2
A) uniform new fresh date 6 is cleaned up and after room temperature dries, uniform monolayers are placed on pallet 14.It closes
Hatch door is closed, vacuum drying cabinet 5 is in normal pressure state at this time, and normal pressure state is local real atmosphere pressure；It is broken sky solenoid valve 2, true
Empty solenoid valve 8 is in close state, and vacuum drying cabinet 5 is fully sealed.
Wherein, pallet 14 is apart from top infrared heater spacing 50mm, apart from lower section infrared heating plate spacing 40mm, temperature
Sensor 15 is located at 6 top about 5mm of jujube.
B) start the infrared device for peeling of vacuum impulse, infrared peeling heating time, infrared is set separately on touch screen 16
Remove the peel heating temperature, the velocity of rotation of motor 13, the vacuum degree of vacuum tank 9；Vacuum impulse removes the peel number；When vacuum infrared is dry
Between and vacuum infrared drying temperature；
Wherein, infrared peeling heating time is 5min, and 400 DEG C of infrared peeling heating temperature, the velocity of rotation of motor 13 is 6
Turn/min, the vacuum degree of vacuum tank 9 is 8kPa, and it is 2 times that vacuum impulse, which removes the peel number,；Vacuum infrared drying time is 20min, very
Empty infra-red drying temperature is 60 DEG C；
C) after clicking start button, infrared heater 4 and motor 13 start simultaneously, and touch screen 16 is according to temperature sensor 15
Temperature feedback value, according to the starting/stopping for setting infrared peeling heating temperature dynamic regulation infrared heater 4, to jujube 6 into
Row infrared heating；Touch screen 16 controls the rotation speed of motor 13 according to the revolving speed of setting, and then controls the rotation speed of pallet 14
Degree；Touch screen 16 is according to setting vacuum degree, control vacuum pump 10 and the starting/stopping for condensing unit 11, when the vacuum of vacuum tank 9
When degree reaches setting value, vacuum pump 10 and condensation unit 11 stop working, when the vacuum degree of vacuum tank 9 is lower than setting value, very
Sky pump 10 and condensation unit 11 are started to work.
D) at the end of infrared peeling heating time, infrared heater 4 stops working, and motor 13 still rotates.
At this point, broken sky solenoid valve 2 is in close state, vacuum solenoid 8 is opened, under the effect of vacuum tank 9, hothouse 5
Pressure quickly reduces, and 5 pressure of hothouse is reduced to since 5 pressure of hothouse and is stablized, the time≤2min.When 5 pressure of hothouse
After stabilization, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, and hothouse 5 is in vacuum state at this time, cold with hothouse outside
There are pressure difference, cool exterior airs room 5 is dried along ventilation pipe 3 under the action of the pressure difference for air, and in gas
Under the action of jet nozzle 7, high-speed flow is formed, impacts the surface of jujube 6；5 pressure of hothouse can rise rapidly to, when with it is outer
Boundary's atmospheric pressure and when stablizing, breaks sky solenoid valve 2 and closes；It is increased to 5 pressure of hothouse since 5 pressure of hothouse to stablize, the time
≤2min。
At this point, primary complete vacuum impulse peeling process is completed, the vacuum impulse peeling number of touch screen setting is reduced
Once；The pressure lifting process moves in circles, until stopping when vacuum impulse peeling number is reduced to 0.
E) when the infrared peeling number of vacuum impulse is 0, vacuum solenoid 8, infrared heater 4 can be again turned on；At this time
Broken sky solenoid valve 8 is in close state, and vacuum drying cabinet 5 is again at vacuum state, and the jujube 6 after peeling is made in infra-red radiation
It can rapid evaporation with layer moisture；Touch screen 16 is dried according to the temperature feedback value of temperature sensor 15 according to vacuum infrared
Starting/stopping of temperature dynamic regulation infrared heater 4 carries out infrared heating to jujube 6；When reaching, setting vacuum infrared is dry
When the time, vacuum solenoid 8 is closed, and is broken sky solenoid valve 2 and is opened, cool ambient air air-flow can be again introduced into cabinet, impact and cold
But jujube surface is removed the peel, when 5 pressure of hothouse is identical as external atmosphere pressure, sky solenoid valve 8 is broken and closes.Entire vacuum impulse is red
Outer peeling process is completed.
F) terminate heating, close control system, open hothouse 5, take out jujube 6.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (10)
1. a kind of infrared device for peeling of vacuum impulse, including vacuum system, infrared heating system, control system, it is characterised in that:
Vacuum system includes vacuum drying cabinet and vacuum evacuation device, and infrared heating system includes airflow apparatus, heating device and plummer,
Control system includes control cabinet and sensor.
2. the infrared device for peeling of a kind of vacuum impulse according to claim 1, it is characterised in that: vacuum evacuation device includes:
Vacuum tank (9), vacuum pump (10), condensation unit (11), vacuum drying cabinet (5) side are connected to vacuum by vacuum solenoid (8)
Tank (9), vacuum tank (9) and vacuum pump (10), condensation unit (11) are sequentially connected, and are connected between vacuum tank (9) and vacuum pump (10)
It is connected to pressure sensor (12).
3. the infrared device for peeling of a kind of vacuum impulse according to claim 1, it is characterised in that: airflow apparatus includes: brokenly
Empty solenoid valve (2), ventilation pipe (3) and gas jet nozzle (7)；Plummer includes: pallet (14), and pallet (14) is located at vacuum
Hothouse (5) is central, and single layer tiling peeling object, motor (13) can drive pallet (14) uniform rotation on pallet (14)；Heating dress
Setting includes: infrared heater (4), and pallet (14) top, lower section are evenly distributed with infrared heater (4), and pallet (14) is apart from upper
30~100mm of square infrared heater spacing, apart from lower section 10~80mm of infrared heater spacing.
4. a kind of infrared device for peeling of vacuum impulse described in one of -3 according to claim 1, it is characterised in that: control system is also
Including touch screen (16), control cabinet (1) also respectively with broken empty solenoid valve (2), infrared heater (4), vacuum solenoid (8), true
Sky pump (10), condensation unit (11), pressure sensor (12), motor (13) are connected.
5. the infrared device for peeling of a kind of vacuum impulse according to claim 4, it is characterised in that: touch screen (16) can acquire
The value of pressure sensor (12) and temperature sensor (15), and pass through the broken empty solenoid valve (2) of single-chip microcontroller output module control, vacuum
Solenoid valve (8) and vacuum pump (10), the operation for condensing unit (11), motor (13).
6. a kind of method of the infrared peeling of jujube vacuum impulse, which is characterized in that it includes the following steps:
A) jujube is placed on vacuum drying interior, and vacuum drying cabinet is in atmospheric pressure sealed state,
B) start the infrared device for peeling of vacuum impulse,
C) infrared heater carries out infrared heating to jujube,
D) vacuum drying cabinet reduction of blood pressure in high-speed is again sealed off after drying chamber pressure is stablized to vacuum, accesses external high-speed flow,
After vacuum drying cabinet restores normal pressure state, restore sealing,
E) by after the complete previous step number of technique number of cycles, vacuum drying cabinet is again at vacuum state, infrared heater pair
Jujube carries out infrared heating, and the jujube after making peeling acts on layer water rapid evaporation in infra-red radiation, is then again sealed off, connects
Enter external high-speed flow, after vacuum drying cabinet restores normal pressure state,
F) control system is closed, hothouse is opened, takes out jujube.
7. the method for the infrared peeling of jujube vacuum impulse according to claim 6, it is characterised in that: in step b, starting is true
Sky is pulsed after infrared device for peeling, is set separately: infrared peeling heating time is 3~5min, and infrared peeling heating temperature is 200
~400 DEG C, the velocity of rotation of motor is 3~6 turns/min, and the vacuum degree of vacuum tank is 0~8kPa, and vacuum impulse peeling number is
1~5 time；Vacuum infrared drying time is 5~20min, and vacuum infrared drying temperature is 60~80 DEG C.
8. the method for the infrared peeling of jujube vacuum impulse according to claim 6, it is characterised in that: in step c: infrared to add
Hot device and motor start simultaneously, and touch screen is according to the temperature feedback value of temperature sensor, according to setting infrared peeling heating temperature
Starting/stopping of dynamic regulation infrared heater carries out infrared heating to jujube；Touch screen controls motor according to the revolving speed of setting
Rotation speed, and then control pallet rotation speed；Touch screen is according to setting vacuum degree, control vacuum pump and condensation unit
Starting/stopping, when the vacuum degree of vacuum tank reaches setting value, vacuum pump and condensation unit stop working, true when vacuum tank
When reciprocal of duty cycle is lower than setting value, vacuum pump and condensation unit are started to work.
9. the method for the infrared peeling of jujube vacuum impulse according to claim 6, it is characterised in that: in step d: when infrared
At the end of removing the peel heating time, infrared heater stops working, and motor still rotates, at this point, broken sky solenoid valve is in and closes shape
State, vacuum solenoid are opened, and under vacuum tank effect, drying chamber pressure is quickly reduced, and is reduced to since drying chamber pressure dry
Dry chamber pressure is stablized, the time≤2min, and after drying chamber pressure is stablized, vacuum solenoid is closed, and breaks sky solenoid valve and opens, at this time
Hothouse is in vacuum state, and with hothouse cool exterior air there are pressure difference, cool exterior air can be in the effect of the pressure difference
It is lower that room is dried along ventilation pipe, and under the action of gas jet nozzle, high-speed flow is formed, the surface of jujube is impacted；
Drying chamber pressure can be increased quickly, when equal with external atmosphere pressure and when stablizing, broken sky solenoid valve and closed；It is opened from drying chamber pressure
Beginning is increased to drying chamber pressure and stablizes, the time≤2min, at this point, primary complete vacuum impulse peeling process is completed, touch screen
The vacuum impulse peeling number of setting reduces primary；The pressure lifting process moves in circles, until vacuum impulse peeling number subtracts
It is few to 0 when stop.
10. the method for the infrared peeling of jujube vacuum impulse according to claim 6, it is characterised in that: in step e: taking seriously
When the infrared peeling number of sky pulsation is 0, vacuum solenoid, infrared heater can be again turned on；Empty solenoid valve is broken at this time is in pass
Closed state, vacuum drying cabinet are again at vacuum state, and the jujube after peeling can be quick in infra-red radiation effect layer moisture
Evaporation；Touch screen is according to the temperature feedback value of temperature sensor, according to vacuum infrared drying temperature dynamic regulation infrared heater
Starting/stopping, to jujube carry out infrared heating；When reaching setting vacuum infrared drying time, vacuum solenoid is closed, and is broken
Empty solenoid valve is opened, and cool ambient air air-flow can be again introduced into cabinet, impacts and jujube surface is removed the peel in cooling, work as drying chamber pressure
It when identical as external atmosphere pressure, break sky solenoid valve and closes, the entire infrared peeling process of vacuum impulse is completed.
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| CN110089663A (en) * | 2019-05-28 | 2019-08-06 | 宁夏红中宁枸杞制品有限公司 | Remove the residual Chinese wolfberry fruit dry preparation method of agriculture |
| CN112120236A (en) * | 2020-09-22 | 2020-12-25 | 湘潭大学 | Temperature-raising and pressure-changing peeling method for fresh lotus |
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| EP0630584A2 (en) * | 1993-06-25 | 1994-12-28 | Guy Altmeisch | Device for treating products in a closed treatment space |
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| CN112120236B (en) * | 2020-09-22 | 2022-08-02 | 湘潭大学 | Temperature-raising and pressure-changing peeling method for fresh lotus |
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| CN109619605B (en) | 2020-12-01 |
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