CN106123515A - A kind of low-pressure superheated steam drying system and technique - Google Patents
A kind of low-pressure superheated steam drying system and technique Download PDFInfo
- Publication number
- CN106123515A CN106123515A CN201610694300.3A CN201610694300A CN106123515A CN 106123515 A CN106123515 A CN 106123515A CN 201610694300 A CN201610694300 A CN 201610694300A CN 106123515 A CN106123515 A CN 106123515A
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- steam
- temperature
- drying baker
- heater
- drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of low-pressure superheated steam drying system and technique, belong to field of processing of aquatic products；It includes drying baker, the pallet for placing product to be dried it is provided with in described drying baker, it is provided with steam distributor in the lower section of pallet, steam distributor is provided with multiple steam channel and several steam (vapor) outlets, several steam (vapor) outlets are relative with tray bottom, multiple steam channels are connected with steam heater, steam heater is connected with steam generator, and the steam that steam generator produces is treated dry products by steam distributor entrance drying baker after steam heater is heated as superheated steam and is dried；Be provided with offgas outlet at drying baker top, described offgas outlet is connected with condenser.
Description
Technical field
The invention belongs to field of processing of aquatic products, be specifically related to a kind of drying system being dried for aquatic products and work
Skill.
Background technology
A lot of aquatic products, in order to increase the shelf-life, need to be processed into dry products, such as: Stichopus japonicus belongs to invertebrates spine
Skin animal door Holothuroidea.Stichopus japonicus is raw without cholesterol, high protein, low fat, low sugar and aminoacid, dimension rich in various needed by human
Element, essential fatty acid and macro-and trace-element, be the health food of high nutritive value.And Stichopus japonicus fish seasonality
By force, and easily self-dissolving, it is only capable of short time raising or processing after going to sea.At present, the processing of Stichopus japonicus is based on drying.According to statistics, entirely
The Stichopus japonicus of the 90% of ball scope is processed to various dry products.
Traditional Stichopus japonicus dry-making processing technology is complicated and coarse, it is common that high temperature hangs salt, and concrete processing method is: fresh and alive sea
Ginseng is removed internal organs, is cleaned, boils and boil, mix salt, lower cylinder, roasting ginseng, mix ash, dry in the sun.The Stichopus japonicus salt content so processed is too much, quality
Decline to a great extent.Traditional hot air drying mode has small investment, advantage easy and simple to handle, but easy in long-time dry run
Cause hot injury and over oxidation, also result in growing in a large number of antibacterial.
Superheat steam drying is the dry new technique that latest developments are got up, and has drying efficiency high, dry products product
The advantages such as matter is good, and safety is good.But superheat steam drying temperature is higher, and the nutrition that long-time high temperature drying can affect Stichopus japonicus becomes
Point.
Summary of the invention
The purpose of the present invention is exactly for overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of low-pressure superheated steam is dried and is
System and technique, be dried the drying system of processing, technique and the application in the marine products such as Stichopus japonicus especially for aquatic products,
Both maintain the efficiency height of superheat steam drying, the advantage of quality better, turn avoid high temperature super heated steam to sea cucumber nutrient composition
Destruction.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of low-pressure superheated steam drying system, including drying baker, is provided with in described drying baker and treats for placement
The pallet of dry products, is provided with steam distributor in the lower section of pallet, described steam distributor be provided with multiple steam channel and
Several steam (vapor) outlets, several described steam (vapor) outlets are relative with tray bottom, and described multiple steam channels add with steam
Hot device is connected, and described steam heater is connected with steam generator, and the steam that steam generator produces adds through steam heater
Heat is treated dry products by steam distributor entrance drying baker after becoming superheated steam and is dried；On described drying baker top
Portion is provided with offgas outlet, and described offgas outlet is connected with condenser.
Further, the lower section of described steam distributor is additionally provided with a heater, described heater and temperature control
Device processed is connected.
Further, a temperature sensor, described temperature sensor and described temperature it are provided with in described drying baker
Degree controls device and is connected, and temperature sensor gathers the temperature in drying baker, is sent to temperature control equipment, and described temperature controls
Device controls heater and heats the temperature in drying baker, and then realizes controlling the temperature in drying baker.
Further, the condensed steam of described condenser returns steam generator and is circulated utilization.
Further, condensed water that described condenser produces and fixed gas after same outlet is discharged, condensed water from
Exit lower end exits into steam generator, and fixed gas is discharged in outlet upper end by water ring vacuum pump.
Further, described steam distributor makes steam be uniformly distributed in drying baker, makes treating of pallet each position interior
The dry rate that dry products can maintain like.
The technological process of product low-pressure superheated steam drying system to be dried, as follows:
The steam that steam generator produces is entered by steam distributor after steam heater is heated as superheated steam
Drying baker is treated dry products and is dried；Return steam generator after the condensation of dried tail gas condensed device and be circulated profit
With；Intrasystem fixed gas is discharged by water ring vacuum pump, makes system define negative pressure shape the condensation of tail gas by condenser
State, maintains the temperature at setting value in drying baker, when temperature sensor monitors to dry the temperature inside the box is less than setting value, i.e. pass through
Temperature control equipment makes electric heater start working, and when dry the temperature inside the box reaches setting value, electric heater quits work, from
And it is temperature required to ensure that the temperature in drying baker can maintain.
Subnormal ambient in described product low-pressure superheated steam drying system to be dried is to be condensed steam by condenser
Realize.
Described steam distributor makes steam be uniformly distributed in drying baker, makes the product energy to be dried of pallet each position interior
The dry rate enough maintained like.
A kind of low-pressure superheated steam drying system for processing aquatic products, it uses foregoing low-pressure superheated steam
Drying system.
A kind of process for processing aquatic products, it uses foregoing technique.
A kind of process for processing sea cucumber, it uses described drying process, and wherein the pressure in drying baker is low
In-0.09MPa, temperature is maintained at 57-60 DEG C；Described temperature sensor monitors to dry the temperature inside the box less than 57 DEG C time, the most logical
Excess temperature controls device makes heater start working, and when dry the temperature inside the box reaches 60 DEG C, heater quits work, thus
Ensure that the temperature in drying baker can maintain temperature required.
The Advantageous Effects of the present invention is:
The low-pressure superheated steam drying system of present invention proposition and technique, be processed to be dried various aquatic products, its
Use low-pressure superheated steam that aquatic products are dried, the advantage both having maintained superheat steam drying so that aquatic products are being dried
Time surface keep wetting state, moisture from inside to outside portion migrate time resistance to mass tranfer little, turn avoid high temperature super heated steam to Aquatic product
The damage that product quality causes.
Use present invention process drying go out aquatic products outward appearance full, rehydration is good, and product to be dried can be kept various
Nutritional labeling is not damaged.Present invention process belongs to closed cycle, and steam tail gas is recycled, and effects of energy saving and emission reduction is notable.
Accompanying drawing explanation
Fig. 1 is product low-pressure superheated steam drying system to be dried and artwork.
Wherein, 1-steam generator, 2-steam heater, 3-temperature control equipment, 4-drying baker, 5-temperature sensor,
6-product to be dried, 7-pallet, 8-steam (vapor) outlet, 9-steam distributor, 10-steam channel, 11-heater, 12-condenser,
13-water ring vacuum pump, 14-fixed gas and condensation-water drain, 15-upper outlet, export under 16-.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, low-pressure superheated steam drying system, including drying baker 4, it is provided with in described drying baker 4
For placing the pallet 7 of band dry products, being provided with steam distributor 9 in the lower section of pallet 7, described steam distributor 9 is provided with
Multiple steam channels and several steam (vapor) outlets 8, several described steam (vapor) outlets 8 are relative with bottom pallet 7, and described is multiple
Steam channel is connected with steam heater, and described steam heater 2 is connected with steam generator 1, and steam generator 1 produces
Steam enters drying baker 4 by steam distributor after steam heater is heated as superheated steam and is dried aquatic products；
Being provided with offgas outlet at described drying baker top, described offgas outlet is connected with condenser.
Further, the lower section of steam distributor 9 is additionally provided with a heater 11, and described heater controls dress with temperature
Put connected；Heater described here can select electric heater or other heater, enters according to different aquatic products
The selection that row is different.
Further, a temperature sensor 5, described temperature sensor 5 and described temperature control it are provided with in drying baker 4
Device 3 processed is connected, and temperature sensor 5 gathers the temperature in drying baker, is sent to temperature control equipment 3, and described temperature controls
Device 3 controls heater and heats the temperature in drying baker, and then realizes controlling the temperature in drying baker.
Temperature sensor of the present invention can select thermocouple, or other temperature sensor.
Further, the described condensed steam of condenser 12 returns steam generator and is circulated utilization.
Further, condensed water that described condenser 12 produces and fixed gas after same outlet is discharged, condensed water
Exit into steam generator from exit lower end (lower outlet 16), fixed gas by water ring vacuum pump 13 outlet upper end (on
Outlet 15) discharge；Concrete outlet is as shown in the fixed gas in Fig. 1 and condensation-water drain 14.
Further, described steam distributor 9 makes steam be uniformly distributed in drying baker 4, makes pallet each position interior
The dry rate that product to be dried can maintain like.
The technological process of product low-pressure superheated steam drying system to be dried recited above, as follows:
The steam that steam generator produces is entered by steam distributor after steam heater is heated as superheated steam
Drying baker is treated dry products and is dried；Return steam generator after the condensation of dried tail gas condensed device and be circulated profit
With；Intrasystem fixed gas is discharged by water ring vacuum pump, makes system define negative pressure shape the condensation of tail gas by condenser
State, maintains the temperature at setting value in drying baker, when temperature sensor monitors to dry the temperature inside the box is less than setting value, i.e. pass through
Temperature control equipment makes electric heater start working, and when dry the temperature inside the box reaches setting value, electric heater quits work, from
And it is temperature required to ensure that the temperature in drying baker can maintain.
Further, the subnormal ambient in low-pressure superheated steam drying system is to be realized steam condensation by condenser
's.
Further, steam distributor makes steam be uniformly distributed in drying baker, makes the to be dried of pallet each position interior
The dry rate that product can maintain like.
Below as a example by treating Stichopus japonicus, the present invention is described in detail:
Stichopus japonicus low-pressure superheated steam drying system, including steam generator 1, steam heater 2, temperature control equipment 3, does
Dry case 4, thermocouple 5, Stichopus japonicus 6, pallet 7, steam distributor 9, electric heater 11, condenser 12, water ring vacuum pump 13.Wherein,
Placing Stichopus japonicus 6 on pallet 7, steam distributor 9 includes several steam (vapor) outlets 8 and multiple steam channel 10；Several steam go out
Mouth 8 is relative with bottom pallet 7, and described multiple steam channels are connected with steam heater；Fixed gas and cold is had on condenser 12
Coagulating water out 14, fixed gas is discharged from upper outlet 14, and condensed water is discharged from lower outlet 15.
Technical process is as follows:
The steam that steam generator 1 produces is entered by steam distributor 9 after steam heater 2 is heated as superheated steam
Enter drying baker 4 Stichopus japonicus 6 is dried, by 16 times steam generators of lower outlet after the condensation of dried tail gas condensed device 12
1 is circulated utilization, and intrasystem fixed gas is discharged through water ring vacuum pump 13, by condenser 12 to steam by upper outlet 15
The condensation of tail gas makes system define negative pressure state, keeps temperature to be 57-60 DEG C in drying baker 4, and pressure is less than-0.095MPa,
When temperature is less than 57 DEG C in temperature sensor 5 monitors drying baker 4, i.e. electric heater 11 is made to open by temperature control equipment 3
Beginning work, when in drying baker 4, temperature reaches 60 DEG C, electric heater 11 quits work, thus ensures the temperature energy in drying baker 4
Maintain temperature required.
Additionally, the system of the present invention and technique can also be applied to other aquatic products of dry processing, to other Aquatic products
When product are dried, temperature and the pressure of drying baker can be adjusted as required.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to invention protection domain
Restriction, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
Various amendments or deformation that creative work to be paid can be made are the most within the scope of the present invention.
Claims (10)
1. a low-pressure superheated steam drying system, it is characterised in that include drying baker, is provided with use in described drying baker
In the pallet of placement product to be dried, being provided with steam distributor in the lower section of pallet, described steam distributor is provided with multiple steaming
Vapour passage and several steam (vapor) outlets, several described steam (vapor) outlets are relative with tray bottom, described multiple steam channels
Being connected with steam heater, described steam heater is connected with steam generator, and the steam that steam generator produces is through steam
Heater is treated dry products by steam distributor entrance drying baker after being heated as superheated steam and is dried；Described
Drying baker top is provided with offgas outlet, and described offgas outlet is connected with condenser.
2. low-pressure superheated steam drying system as claimed in claim 1, it is characterised in that the lower section of described steam distributor
Being additionally provided with a heater, described heater is connected with temperature control equipment.
3. low-pressure superheated steam drying system as claimed in claim 2, it is characterised in that be provided with in described drying baker
Temperature sensor, described temperature sensor is connected with described temperature control equipment, and temperature sensor gathers in drying baker
Temperature, is sent to temperature control equipment, and described temperature control equipment controls heater and heats the temperature in drying baker,
And then realize the temperature in drying baker is controlled.
4. low-pressure superheated steam drying system as claimed in claim 1, it is characterised in that the condensed steaming of described condenser
Vapour returns steam generator and is circulated utilization.
5. low-pressure superheated steam drying system as claimed in claim 1, it is characterised in that the condensation that described condenser produces
Water and fixed gas are after same outlet is discharged, and condensed water exits into steam generator from exit lower end, and fixed gas passes through
Water ring vacuum pump is discharged in outlet upper end.
6. the low-pressure superheated steam drying system being used for processing aquatic products, it is characterised in that use claim 1-5 arbitrary
Described low-pressure superheated steam drying system.
7. a low-pressure superheated steam drying process, it is characterised in that as follows:
The steam that steam generator produces is entered by steam distributor after steam heater is heated as superheated steam and is dried
Case is treated dry products and is dried；Return steam generator after the condensation of dried tail gas condensed device and be circulated utilization；System
Fixed gas in system is discharged by water ring vacuum pump, makes system define negative pressure state the condensation of tail gas by condenser, dry
Maintain the temperature at setting value in dry case, when temperature sensor monitors to dry the temperature inside the box is less than setting value, i.e. pass through temperature
Controlling device makes electric heater start working, and when dry the temperature inside the box reaches setting value, electric heater quits work, thus protects
Temperature in card drying baker can maintain temperature required.
8. low-pressure superheated steam drying process as claimed in claim 7, it is characterised in that described product low area overheat to be dried
Steam condensation is realized by the subnormal ambient in steam drying system by condenser.
9. the technique being used for processing aquatic products, it is characterised in that it uses the arbitrary described back tender of claim 7-8
Skill.
10. the technique for processing sea cucumber, it is characterised in that it uses the arbitrary described drying process of claim 7-8,
Wherein the pressure in drying baker is less than-0.09MPa, and temperature is maintained at 57-60 DEG C；Described temperature sensor monitors is in drying baker
When temperature is less than 57 DEG C, i.e. makes heater start working by temperature control equipment, add when dry the temperature inside the box reaches 60 DEG C
Hot device i.e. quits work, thus the temperature in ensureing drying baker can maintain temperature required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610694300.3A CN106123515B (en) | 2016-08-19 | 2016-08-19 | A kind of low-pressure superheated steam drying system and technique |
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| CN201610694300.3A CN106123515B (en) | 2016-08-19 | 2016-08-19 | A kind of low-pressure superheated steam drying system and technique |
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| CN106123515A true CN106123515A (en) | 2016-11-16 |
| CN106123515B CN106123515B (en) | 2018-12-14 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979669A (en) * | 2017-04-10 | 2017-07-25 | 中国农业大学 | A kind of microwave low-pressure superheated steam combination drying experimental rig and drying means |
| CN107692275A (en) * | 2017-08-18 | 2018-02-16 | 天津科技大学 | Effectively improve the drying device and method of vitamin C retention rate in fruit-vegetable dried product |
| CN108850900A (en) * | 2018-08-08 | 2018-11-23 | 山东省科学院能源研究所 | A kind of instant Penaeus Vannmei system of processing and technique |
| CN110887364A (en) * | 2019-11-26 | 2020-03-17 | 湖北工业大学 | Continuous low-pressure superheated steam drying equipment and drying method |
| CN115355677A (en) * | 2022-08-23 | 2022-11-18 | 黑龙江八一农垦大学 | Negative pressure steam drying device and drying method for GABA germ rice production |
| CN116698663A (en) * | 2023-08-09 | 2023-09-05 | 山东天力能源股份有限公司 | Drying experiment device and method for researching partial pressure of water vapor |
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| CN116698663A (en) * | 2023-08-09 | 2023-09-05 | 山东天力能源股份有限公司 | Drying experiment device and method for researching partial pressure of water vapor |
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|---|---|
| CN106123515B (en) | 2018-12-14 |
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