CN106070593A - A kind of thermal source multiple techniques grain drying device and method - Google Patents
A kind of thermal source multiple techniques grain drying device and method Download PDFInfo
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- CN106070593A CN106070593A CN201610587527.8A CN201610587527A CN106070593A CN 106070593 A CN106070593 A CN 106070593A CN 201610587527 A CN201610587527 A CN 201610587527A CN 106070593 A CN106070593 A CN 106070593A
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- 238000001035 drying Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000002485 combustion reaction Methods 0.000 claims abstract description 31
- 240000008042 Zea mays Species 0.000 claims abstract description 30
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 30
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 30
- 235000005822 corn Nutrition 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000018044 dehydration Effects 0.000 claims abstract description 6
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 6
- 238000005338 heat storage Methods 0.000 claims description 58
- 238000004891 communication Methods 0.000 claims description 24
- 230000017531 blood circulation Effects 0.000 claims description 15
- 240000007594 Oryza sativa Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 210000000582 semen Anatomy 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 10
- 230000004087 circulation Effects 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 244000046127 Sorghum vulgare var. technicum Species 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 210000000476 body water Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000301226 Sciurotamias davidianus Species 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of thermal source multiple techniques grain drying device of the present invention and method, be made up of drying tower, thermal source output system, heat source system (including electric heat source, solar source, combustion heat source and other heat production thermal source), temperature sensor and control system；A kind of grain drying machine using thermal source multiple techniques of the present invention, corn absorbs heat in drying tower, dehydration；With water, conduction oil etc. as heat exchange medium, medium passes through pipeline, absorbs heat, flow to heat release during drying tower, it is achieved grain-drying at thermal source；The switching of each heat source system is manually or automatically switched by control system.
Description
Technical field
The present invention relates to a kind of grain drying machine using thermal source multiple techniques, belong to agricultural mechanical field.
Background technology
Conventional grain drying mode is road and ground dry in the sun, adds grain impurity, reduces grain quality, brings
Hidden trouble of traffic, and disposal ability is limited.Along with home farm, agricultural machinery cooperation, farm machine test, agricultural planting rich and influential family (specialist)
Deng the rapid emergence of rural organization, changing agricultural planting and management mode, grain will be by being dispersed in the past in single peasant's hands
Turning to and concentrate in minority rural organization hands, grain Sciurotamias davidianus requires that facing matter of utmost importance i.e. dries problem, adds because of weather
The grain that reason causes quantity of going mouldy is continuously increased, and grain heat-drying becomes the important need of peasant, sending out for drying plant market
Exhibition provides opportunity.
The grain drying machine that existing market is common, its thermal source is mainly coal, diesel oil, agricultural crop straw etc., heat exchange medium
For air, because air specific heat is little, therefore in drying tower, devise the air channel of complexity, to improve and the heat exchanger effectiveness of corn；Combustion
Burning difficult control of temperature, the method drying temperature introducing cold air regulates, and cold air flows size airdoor control controls
Precision is low, affects drying quality；And the clean energy resource such as solar energy and electric energy such as cannot use at the problem.
A kind of warehouse formula grain-drying equipment of the disclosure of the invention of Patent No. 201410486825.9, including powering device
Connecting with drying warehouse, described powering device and drying warehouse, described heat source generator is connected with ingress pipe entrance, and ingress pipe goes out
Mouth is connected with fin entrance, and fin outlet is connected with delivery line entrance, and the bottom of fin is provided with aerator, described
Equidistantly being provided with five heat radiations in insulated wall to be in charge of, described five heat radiations are in charge of and are asked and define six drying chambers, described drying chamber
Lower front face is provided with corn and takes out door, and the top that described heat radiation is in charge of is provided with relief valve, described drying chamber pushes up and sets
Corn hand-hole, corn hand-hole and automatic feeding is had to connect.The drying structure of this employing warehouse formula, shortcoming is corn
Do not flow, it is impossible to drying Oryza sativa L. etc. needs the corn of tempering process, and thermal source source is indefinite.
The invention of Patent No. 201310321221.4, discloses dehumidifying pump type heat grain drying machine, including heat pump drying
Unit and the drying tower being connected with described heat pump drying unit, by the work of compressor in heat pump drying unit, work as air
In heat absorption come, add as promoting refrigeration system work and a part of electric energy of consuming, the heat energy of two parts all gives
Realize the drying of corn in drying tower to drying in road.Shortcoming is that its thermal source is the heat in air, originates single,
The cheap energy of the biomass such as clean energy resource and straw such as solar energy cannot use.
The invention of Patent No. 201310239194.6, discloses a kind of drying plant, including: connected successively by transport part
Unloading portion, cleaning dust removal unit, baking front portion, dehydrator, tempering portion and the portion that delivers from godown connect.Also disclose its stoving process, including with
Lower step: unloading, dedusting, baking pre-treatment, drying and tempering process.Shortcoming is to be provided with special tempering tower, and drying tower
Structure is complicated, and device fabrication cost is high, operation complexity, and thermal source source is single.
Summary of the invention
In order to overcome the existing above-mentioned technical problem in order to overcome prior art to exist, it is an object of the invention to set
Counting a kind of grain drying machine using thermal source multiple techniques, corn absorbs heat in drying tower, dehydration, and drying tower simple in construction does not has
Air channel complicated in having drier tower common on market；With water, conduction oil etc. as heat exchange medium, medium is by pipe
Road, absorbs heat at thermal source, flow to heat release during drying tower, it is achieved grain-drying；Multi-heat source is combined, and each heat source system switches by controlling
System processed manually or automatically switches.
The technical solution adopted in the present invention is:
A kind of grain drying device using thermal source multiple techniques of the present invention, is exported system, electric heat source system by drying tower, thermal source
System, solar heat source system, combustion heat source system, temperature sensor and control system composition；
Thermal source output system by heat exchanger, circulating pump I, valve I and heat storage tank (when heat exchange medium is water, referred to as water tank；When
When heat exchange medium is conduction oil, referred to as fuel tank) composition, heat exchanger is installed on drying tower inner bottom part, heat exchanger, circulating pump I, valve
Door I is become blood circulation with heat storage tank by pipeline communication；
Electric heat source system is made up of electrically heated rod and heat storage tank, and electrically heated rod is arranged at inside heat storage tank；
Solar heat source system is made up of solar thermal collector, circulating pump II, valve II and heat storage tank, solar thermal collector, follows
Ring pump II, valve II are become blood circulation with heat storage tank by pipeline communication；
Combustion heat source system is made up of combustion furnace, heat exchanger, circulating pump III, valve III and heat storage tank, combustion furnace, heat exchanger, follows
Ring pump III, valve III are become blood circulation with heat storage tank by pipeline communication；
Temperature sensor is arranged in heat storage tank, electrically heated rod, temperature sensor, valve I, valve II, valve III, circulating pump I,
Circulating pump II and circulating pump III are connected respectively to control system, and system temperature is gathered by temperature sensor, and control system controls；
Above-mentioned heat storage tank refers to same heat storage tank.
Preferably, being provided with elevator outside described drying tower, two ports of elevator connect with the entrance and exit of drying tower
Connecing, elevator is connected to control system, and the switching on and shutting down speed of elevator is by control system control.
Preferably, described drying tower is formed by the bottom of tower body, baffle plate I, baffle plate II and cone screen plate tower.Baffle plate I and baffle plate II
It is located at the upper portion side wall in drying tower tower body, and downward-sloping, and baffle plate I, baffle plate II are all higher than solid accumulation with horizontal plane angle
Angle 5-10 degree, the 1/2-2/3 of baffle plate I floor projection a length of tower body horizontal cross-section diameter at the diameter of tower body horizontal cross-section,
The 1/2-2/3 of baffle plate II floor projection a length of tower body horizontal cross-section diameter at the diameter of tower body horizontal cross-section.
Preferably, described cone screen plate tower base cone face is provided with sieve aperture, and sieve diameter is less than material size, but is not less than
0.8mm。
Preferably, described baffle plate I is circular flat board or elliptical plate, and baffle plate II is circular flat board or elliptical plate.
Preferably, described heat exchanger, circulating pump I, valve I and heat storage tank are successively by pipeline communication, heat exchanger and heat storage tank
Blood circulation is formed by pipeline communication.
Preferably, solar thermal collector, circulating pump II, valve II and heat storage tank are successively by pipeline communication, solar energy heating
Device and heat storage tank are formed blood circulation by pipeline communication.
Preferably, described combustion furnace, heat exchanger, circulating pump III, valve III and heat storage tank are successively by pipeline communication, combustion furnace
Blood circulation is formed by pipeline communication with heat storage tank.
Preferably, described combustion furnace is oil burner, coal furnace or stalk combustion furance.
Corn through feeding mouth, is sent into drying tower by elevator, and is formed in drying tower and elevator and circulate, circulation
Speed determines according to corn character and preliminary examination moisture, is dried after reaching to set moisture, from discharging opening fall into packaging bag or its
Its device；Discharging opening and feeding mouth use gate valve folding.
A kind of grain-drying method using thermal source multiple techniques, is carried out as steps described below:
A., before grain-drying, loading water, conduction oil etc. in heat storage tank is heat exchange medium, uses solar energy, combustion heat energy, electricity
Energy or other heat energy, make heat exchange medium be preheating to dry processing temperature；
B. corn is loaded drying tower by elevator end entrance from drying tower, fall into the outlet of drying tower lower end, more boosted
End entrance on drying tower sent into by machine, forms circulation, and circulation rate regards in grain variety, original water content and drying course
Depending on the difference between moisture is dried in moisture and setting at that time, the elevator speed of service is that 0-2m/s is stepless adjustable, to adapt to dry
Technological requirement；During grain-drying, solar energy, combustion heat energy, electric energy and other heat energy (lower with), or the above-mentioned energy can be used
Combination；
C. if need not tempering process, such as Semen Maydis, Semen Tritici aestivi, corn in drying tower with speed loop faster, according to dry
Drying process, the elevator speed of service is automatically controlled by controller, and 0-2m/s is stepless adjustable, during operation, the speed controlling of elevator
At 0.1-2m/s；If needing the corn of tempering process, such as Oryza sativa L., then corn in drying tower with slower speed loop,
According to drying process, the elevator speed of service is automatically controlled by controller, and 0-1m/s is stepless adjustable, the most before it is dried the phase and after
Phase, after elevator often runs 0.1-0.5 hour, 0.5-2 hour out of service, during operation, the speed controlling of elevator was at 0.1-
1m/s。
D. the grain-drying later stage, can individually use solar energy is thermal source.
Preferably, when described corn is Oryza sativa L., corn is loaded drying tower by elevator end entrance from drying tower, falls
Enter the outlet of drying tower lower end, then end entrance on drying tower sent into by boosted machine, form slower circulation, circulation rate and drying temperature
Spending depending in original water content and drying course, the difference between moisture is dried in moisture and setting at that time, elevator runs
Speed and drying temperature are automatically controlled by controller, and 0-1m/s is stepless adjustable, the most before it is dried phase and later stage, and elevator is every
After running 0.1-0.5 hour, 0.5-2 hour out of service, prevent Oryza sativa L. dehydration too fast, during operation, the speed controlling of elevator
At 0.1-1m/s；Dry temperature 30-60 degree Celsius.
Preferably, when described corn is Semen Tritici aestivi, Semen Maydis etc., corn in drying tower with speed loop faster, according to dry
Drying process, the elevator speed of service and drying temperature are automatically controlled by controller, and speed of service 0.5-2m/s is stepless adjustable, dries
Dry temperature 60-80 degree Celsius.
Beneficial effect
A kind of grain drying device using thermal source multiple techniques of the present invention, with water, conduction oil etc. as heat exchange medium, medium
By pipeline, go out heat absorption at thermal source, flow to heat release during drying tower, it is achieved grain-drying；Use solar energy in advance, make system pre-
Heat, to drying processing temperature, when needs are dried, direct plunges into use；Fine at weather, the grain-drying later stage, it is possible to individually adopt
It is thermal source with solar energy；When night, the electricity charge were relatively low, employing electrical heating is thermal source.The switching of each heat source system is manual by control system
Or automatically switch.
Drying tower simple in construction, air channel complicated in not having drier tower common on market, needs can be dried
The Oryza sativa L. of tempering process, it is possible to dry and be not required to the Semen Tritici aestivi of tempering process, Semen Maydis etc.；The greens such as solar energy can change low cost, without dirty
Dye；Owing to the specific heat ratio air of water and oil is high, heat exchange medium can improve drying temperature control with less flow circulation
Precision and heat service efficiency, reduce use cost.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of grain drying machine system schematic using thermal source multiple techniques of the present invention.
Fig. 2 is baffle dimensions schematic diagram.
Such as 1-drying tower in figure, 2-elevator, 3-heat exchanger, 4-circulating pump I, 5-valve I, 6-electrically heated rod, 7-temperature
Sensor, 8-heat storage tank, 9-inlet valve, 10-solar thermal collector, 11-combustion furnace, 12-heat exchanger, 13-control system, 14-
Circulating pump II, 15-circulating pump III, 16-valve II, 17-valve III；
101-baffle plate I, 102-baffle plate II, 103-tower body, at the bottom of 104-cone screen plate tower.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, a kind of grain drying device using thermal source multiple techniques of the present invention, drying tower 1, thermal source output are
System, electric heat source system, solar heat source system, combustion heat source system, temperature sensor 7 and control system 13 form；Drying tower 1
Formed by the bottom of tower body 103, baffle plate I 101 and baffle plate II 102 and cone screen plate tower 104；Under heat exchanger 3 is arranged in drying tower 1
Side；Heat exchanger 3, circulating pump I 4, valve I 5, heat storage tank 8(heat exchange medium are water) composition thermal source output system, heat exchanger 3, follow
Ring pump I 4, valve I 5 and heat storage tank 8 are formed blood circulation by pipeline communication successively；Electrically heated rod 6 and heat storage tank 8 form electric heating
Source；Solar thermal collector 10, circulating pump II 14, valve II 16 and heat storage tank 8 form solar heat source system, solar thermal collector
10, circulating pump II 14, valve II 16 and heat storage tank 8 are formed blood circulation by pipeline communication successively；Combustion furnace 11(coal furnace) with
Heat exchanger 12, circulating pump III 15, valve III 17 and heat storage tank 8 form combustion heat source system, combustion furnace 11, heat exchanger 12, circulation
Pump III 15, valve III 17 and heat storage tank 8 are formed blood circulation by pipeline communication successively；Temperature sensor 7 is arranged at heat storage tank 8
In, electrically heated rod 6, temperature sensor 7, valve I 5, valve II 16, valve III 17, circulating pump I 4, circulating pump II 14 and circulating pump
III 15 are connected respectively to control system, and system temperature is gathered by temperature sensor 7, and control system controls 13；Inlet valve 9 is used for supplying
Water and moisturizing.System temperature is gathered by temperature sensor 7, and control system 13 controls；Corn, through feeding mouth, is sent into by elevator 2
Drying tower, and formed in drying tower 1 and elevator 2 and circulate, it is dried after reaching to set moisture, falls into packaging from discharging opening
Bag or other device；Discharging opening and feeding mouth use gate valve folding.
At the bottom of cone screen plate tower, 104 conical surfaces are provided with sieve aperture, and sieve diameter is 2mm, after corn absorbs heat at heat exchanger 3, and flowing
At at the bottom of cone screen plate tower 104, moisture is discharged from sieve aperture.Baffle plate I 101 and baffle plate II 102 play temperature between buffering and equilibrium corn
Degree effect, it is all higher than 5 degree of solid accumulation angle with horizontal plane angle, and baffle plate I 101 floor projection is at the diameter of tower body horizontal cross-section
Length b is tower body horizontal cross-section diameter a 2/3, baffle plate II 102 floor projection length c at the diameter of tower body horizontal cross-section
For tower body horizontal cross-section diameter a 1/2.
A kind of grain drying machine using thermal source multiple techniques of the present invention, with water as heat exchange medium, water is at thermal source
Heat absorption, accumulation of heat at heat storage tank 8, it flow to heat release at grain column 2, it is achieved grain-drying；Use solar energy in advance, make be
System is preheating to dry processing temperature, when needs are dried, direct plunges into use；Fine at weather, in the grain-drying later stage, individually adopt
Being thermal source with solar energy, each heat source system switches by control system 13 manual switching.
Embodiment 2
As it is shown in figure 1, a kind of grain drying device using thermal source multiple techniques of the present invention, drying tower 1, thermal source output are
System, electric heat source system, solar heat source system, combustion heat source system, temperature sensor 7 and control system 13 form；Drying tower 1
Formed by the bottom of tower body 103, baffle plate I 101 and baffle plate II 102 and cone screen plate tower 104；Under heat exchanger 3 is arranged in drying tower 1
Side, installation site determines according to drying tower 1 size；Heat exchanger 3, circulating pump 4, valve 5, heat storage tank 8(heat exchange medium are heat conduction
Oil) composition thermal source output system, heat exchanger 3, circulating pump I 4, valve I 5 and heat storage tank 8 are formed cyclic system by pipeline communication successively
System；Electrically heated rod 6 and heat storage tank 8 form electric heat source；Solar thermal collector 10, circulating pump II 14, valve II 16 and heat storage tank 8 groups
Becoming solar heat source system, solar thermal collector 10, circulating pump II 14, valve II 16 and heat storage tank 8 are successively by pipeline communication shape
Become blood circulation；Combustion furnace 11(straw) form combustion heat source with heat exchanger 12, circulating pump III 15, valve III 17 and heat storage tank 8
System, combustion furnace 11, heat exchanger 12, circulating pump III 15, valve III 17 and heat storage tank 8 are formed cyclic system by pipeline communication successively
System；Temperature sensor 7 is arranged in heat storage tank 8, electrically heated rod 6, temperature sensor 7, valve I 5, valve II 16, valve III 17,
Circulating pump I 4, circulating pump II 14 and circulating pump III 15 are connected respectively to control system, and system temperature is gathered by temperature sensor 7,
Control system controls 13；Inlet valve 9 is for fuel feeding, owing to conduction oil evaporation is few, hardly with supplementing.
104 conical surfaces at the bottom of paddy cone screen plate tower are provided with sieve aperture, and sieve diameter is 2mm, after corn absorbs heat at heat exchanger 3, and stream
Moving at the bottom of cone screen plate tower 104, moisture is discharged from sieve aperture.Baffle plate I 101 and baffle plate II 102 play between buffering and equilibrium corn
Temperature action, it is all higher than 10 degree of solid accumulation angle with horizontal plane angle, and baffle plate I 101 floor projection is straight in tower body horizontal cross-section
Length b at footpath is the 1/2 of tower body horizontal cross-section diameter a, baffle plate II 102 floor projection length at the diameter of tower body horizontal cross-section
Degree c is the 2/3 of tower body horizontal cross-section diameter a.
A kind of grain drying machine using thermal source multiple techniques of the present invention, with conduction oil as heat exchange medium, conduction oil
Absorb heat at thermal source, accumulation of heat at fuel tank 8, it flow to heat release at grain column 2, it is achieved grain-drying；Use the sun in advance
Can, make system warm-up arrive drying processing temperature, when needs are dried, direct plunge into use；Fine at weather, after grain-drying
Phase, individually using solar energy is thermal source；When night, the electricity charge were relatively low, employing electrical heating is thermal source.Each heat source system switches by controlling
System 13 processed automatically switches.
Embodiment 3
The step drying Oryza sativa L. according to the grain drying machine described in embodiment 1 is as follows: Oryza sativa L. original water content is 18%, dries
Moisture is 15%, dehydration 3%, drying time 3 hours, percentage of water loss 1% the most per hour.Drying system is preheated to 40 DEG C, is led to by corn
Cross elevator 2 end entrance from drying tower 1 and load drying tower, to not having at baffle plate 102, stop, into grain, setting heat storage tank temperature
It is 40 DEG C, runs elevator 2 minutes with 0.5m/s speed simultaneously, stop 10 minutes；After 1 hour, set heat storage tank temperature as 38
DEG C, elevator runs 1 hour with 0.4m/s；Set heat storage tank temperature as 38 DEG C, run elevator 3 points with 0.6m/s speed simultaneously
Clock, stops 12 minutes, runs 1 hour, and Oryza sativa L. arrives dries moisture requirement, arranges grain.
Embodiment 4
The step drying Semen Tritici aestivi according to the grain drying machine described in embodiment 1 is as follows: Semen Tritici aestivi original water content is 17%, dries
Moisture is 13%, dehydration 4%, drying time 2 hours, percentage of water loss 2% the most per hour.Drying system is preheated to 70 DEG C, is led to by corn
Cross elevator 2 end entrance from drying tower 1 and load drying tower, to not having at baffle plate 102, stop, into grain, setting heat storage tank temperature
It is 70 DEG C, runs 2 hours with 1m/s speed simultaneously, reach to dry moisture requirement, arrange grain.
Claims (10)
1. use a grain drying device for thermal source multiple techniques, by drying tower, thermal source output system, electric heat source system, too
Sun energy heat source system, combustion heat source system, temperature sensor and control system composition；
Thermal source output system is made up of heat exchanger, circulating pump I, valve I and heat storage tank, and heat exchanger is installed on drying tower inner bottom part,
Heat exchanger, circulating pump I, valve I are become blood circulation with heat storage tank by pipeline communication；
Electric heat source system is made up of electrically heated rod and heat storage tank, and electrically heated rod is arranged at inside heat storage tank；
Solar heat source system is made up of solar thermal collector, circulating pump II, valve II and heat storage tank, solar thermal collector, follows
Ring pump II, valve II are become blood circulation with heat storage tank by pipeline communication；
Combustion heat source system is made up of combustion furnace, heat exchanger, circulating pump III, valve III and heat storage tank, combustion furnace, heat exchanger, follows
Ring pump III, valve III are become blood circulation with heat storage tank by pipeline communication；
Temperature sensor is arranged in heat storage tank, electrically heated rod, temperature sensor, valve I, valve II, valve III, circulating pump I,
Circulating pump II and circulating pump III are connected respectively to control system；
Above-mentioned heat storage tank refers to same heat storage tank.
A kind of grain drying device using thermal source multiple techniques the most according to claim 1, it is characterised in that described dry
Being provided with elevator outside dry tower, two ports of elevator are connected with the entrance and exit of drying tower, and elevator is connected to control system
System.
A kind of grain drying device using thermal source multiple techniques the most according to claim 1, it is characterised in that described dry
Dry tower is formed by the bottom of tower body, baffle plate I, baffle plate II and cone screen plate tower；Baffle plate I and baffle plate II are located at the top in drying tower tower body
Sidewall, and downward-sloping, and baffle plate I, baffle plate II are all higher than solid accumulation angle 5-10 degree, baffle plate I floor projection with horizontal plane angle
The 1/2-2/3 of a length of tower body horizontal cross-section diameter at the diameter of tower body horizontal cross-section, baffle plate II floor projection is in tower body water
The 1/2-2/3 of a length of tower body horizontal cross-section diameter at plane section diameter.
A kind of grain drying device using thermal source multiple techniques the most according to claim 3, it is characterised in that described cone
Shape sieve-plate tower base cone face is provided with sieve aperture, and sieve diameter is less than material size, is not less than 0.8mm.
A kind of grain drying device using thermal source multiple techniques the most according to claim 1, it is characterised in that described in change
Hot device, circulating pump I, valve I and heat storage tank are formed cyclic system by pipeline communication, heat exchanger and heat storage tank by pipeline communication successively
System；Solar thermal collector, circulating pump II, valve II and heat storage tank successively by pipeline communication, solar thermal collector and heat storage tank by
Pipeline communication forms blood circulation；Described combustion furnace, heat exchanger, circulating pump III, valve III and heat storage tank successively by pipeline communication,
Combustion furnace and heat storage tank are formed blood circulation by pipeline communication.
A kind of grain drying device using thermal source multiple techniques the most according to claim 1, it is characterised in that described combustion
Burning stove is oil burner, coal furnace or stalk combustion furance.
7. use a grain-drying method for thermal source multiple techniques, carry out as steps described below:
A., before grain-drying, in heat storage tank, load heat exchange medium, use solar energy, combustion heat energy or electric energy, make heat exchange
Media preheating is to drying processing temperature；
B. corn is loaded drying tower by elevator end entrance from drying tower, fall into the outlet of drying tower lower end, more boosted
End entrance on drying tower sent into by machine, forms circulation, and the elevator speed of service is that 0-2m/s is stepless adjustable；During grain-drying, can
Use solar energy, combustion heat energy, electric energy, or the combination of the above-mentioned energy；
C. if need not tempering process, corn in drying tower with speed loop faster, according to drying process, elevator
The speed of service is automatically controlled by controller, and 0-2m/s is stepless adjustable, and during operation, the elevator speed of service controls at 0.1-2m/s；
If needing the corn of tempering process, with slower speed loop in drying tower, according to drying process, elevator runs speed
Degree is automatically controlled by controller, and 0-1m/s is stepless adjustable, the most before it is dried phase and later stage, and it is little that elevator often runs 0.1-0.5
Shi Hou, 0.5-2 hour out of service, during operation, the speed controlling of elevator was at 0.1-1m/s；
D. the grain-drying later stage, can individually use solar energy is thermal source.
A kind of grain-drying method using thermal source multiple techniques the most according to claim 7, it is characterised in that described heat
Exchange media is water or conduction oil.
A kind of grain-drying method using thermal source multiple techniques the most according to claim 7, it is characterised in that described paddy
When thing is Oryza sativa L., corn is loaded drying tower by elevator end entrance from drying tower, fall into the outlet of drying tower lower end, then warp
End entrance on drying tower sent into by elevator, forms slower circulation, the elevator speed of service and drying temperature automatic by controller
Controlling, 0-1m/s is stepless adjustable, before it is dried phase and later stage, after elevator often runs 0.1-0.5 hour, and 0.5-2 out of service
Hour, prevent Oryza sativa L. dehydration the fastest；Drying temperature 30-60 degree Celsius, during operation, the speed controlling of elevator is at 0.1-1m/s.
A kind of grain-drying method using thermal source multiple techniques the most according to claim 7, it is characterised in that described
When corn is Semen Tritici aestivi or Semen Maydis, corn in drying tower with speed loop faster, according to drying process, the elevator speed of service
Automatically controlling by controller with drying temperature, 0-2m/s is stepless adjustable, and during operation, the elevator speed of service controls at 0.5-2m/
S, dries temperature 60-80 degree Celsius.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322459A (en) * | 2021-11-22 | 2022-04-12 | 蓝山县恒华米业有限公司 | Rice drying-machine |
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| CN104286166A (en) * | 2014-10-15 | 2015-01-21 | 宁夏塞上阳光太阳能有限公司 | Solar heat pump grain drying and storage system |
| CN105248627A (en) * | 2014-07-15 | 2016-01-20 | 盐城迈克瑞机械有限公司 | Energy-saving and environmental-protection grain dryer |
| CN206062006U (en) * | 2016-07-25 | 2017-04-05 | 江苏大学 | A kind of thermal source multiple techniques grain drying device |
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| CN101796361A (en) * | 2007-07-17 | 2010-08-04 | 帕内·孔迪奇 | Energy system for drying moist products |
| CN102334543A (en) * | 2011-07-22 | 2012-02-01 | 西北农林科技大学 | Intelligent grain baking device based on solar energy |
| CN105248627A (en) * | 2014-07-15 | 2016-01-20 | 盐城迈克瑞机械有限公司 | Energy-saving and environmental-protection grain dryer |
| CN104286166A (en) * | 2014-10-15 | 2015-01-21 | 宁夏塞上阳光太阳能有限公司 | Solar heat pump grain drying and storage system |
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Application publication date: 20161109 |