CN208875276U - A kind of multifunctional assembled grain drying system - Google Patents
A kind of multifunctional assembled grain drying system Download PDFInfo
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- CN208875276U CN208875276U CN201721581477.9U CN201721581477U CN208875276U CN 208875276 U CN208875276 U CN 208875276U CN 201721581477 U CN201721581477 U CN 201721581477U CN 208875276 U CN208875276 U CN 208875276U
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- 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
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- 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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Abstract
The utility model provides a kind of multifunctional assembled grain drying system, including drying machine, and the drying machine sets gradually grain storage section, combined type convection section, radiant section and grain discharging section from top to bottom；The radiant section is equipped with radiative cylinder and burner, and the radiative cylinder surface is coated with infrared radiant material；The combined type convection section connects main hot-flow flue.The utility model combines the feature of infrared radiation drying and the drying of hot air convection combined heat, and the exhaust gas generated using infra-red radiation is flowed into the convective drying that combined type convection section carries out cereal, achieved the effect that energy-efficient after mixing with the cold air of main hot-flow flue；The combined type convection section of drying machine uses Combination Design technique, is respectively formed concurrent drying structure, concurrent-countercurrent drying structure or mixed flow drying structure according to the spread pattern difference of the air inlet angle box and outlet air angle box.It is dry using infrared radiation drying and hot air convection combined heat, rate of drying of the cereal in drying machine faster, the better quality after grain dry.
Description
Technical field
The utility model relates to agriculture grain dry technical field, in particular to a kind of multifunctional assembled grain dry system
System.
Background technique
Drying is an important process in agricultural modernization production, and the cereal moisture percentage just harvested is generally all higher,
It needs to be dried to safe aqueous rate as early as possible just and can be carried out storage, otherwise will cause damages because of mildew germination etc..And China is annual
Production cereal breaks through 600,000,000 tons, and there are about 20% cereal to need drying every year, due to dry not in time or dry less than safe moisture
Caused loss just accounts for the 5% of annual output.
China's about 500 drying machine producers, drying machine for having 1000 Multiple Types different with continous way, follows at present
Based on the drying machine of ring type, there are the diversified forms such as fair current, mixed flow, concurrent-countercurrent.For traditional crop dryer, adopt mostly
Or mechanical air drying methods, this drying means is long there are drying time, and energy consumption is high, and the thermal efficiency is using low, very
Quality after being difficult to guarantee grain dry.Such as the exhaust gas that fair current or countercurrent flow drying system are only discharged just takes away about 20% or so
Thermal energy.Fallen behind using the drying machine furnace structure of heated-air drying mode, it is many to build formula heat exchanger airtightness and heat insulating ability difference etc.
Factor makes the efficiency of hot-blast stove have a greatly reduced quality, or even many drying equipments do not have any type of Insulation, blower housing
Etc. equipment be directly exposed in atmosphere, for internal hot blast temperature at 80 DEG C~150 DEG C, internal-external temperature difference causes metal surface to big
Gas distributes a large amount of thermal energy.In addition, the high-temperature flue gas that hot-blast stove excludes can also take away about 15% in addition to the heat loss of hothouse
The thermal energy of left and right, these exhaust gas and flue gas are directly discharged into atmosphere, not only polluted environment but also had lost thermal energy.
In addition, the generally existing automation of crop dryer at present is insufficient, measurement of water-content coefficient relies on manual sampling, lacks and concentrates
Detection & Controling.
Combined by 13 ministries and commissions such as the Department of Science and Technology, Ministry of Agriculture and has issued " agricultural and cereal science and technology development planning (2009-2020
Year) ", using dry industry energy-saving emission reduction as key content.According to incompletely statistics, 90% or more China's crop dryer makes of coal
Heat source, so heat source is single and mostly without tail gas treatment device, carbon dioxide that coal combustion generates, carbon monoxide, sulfur dioxide,
Dust etc. is directly discharged to atmosphere, and environmental pollution is serious.At present lot of domestic and international scholar in terms of infrared radiation drying
Correlative study, such as domestic scholars Wang Xibo, Jiao Shilong, Wang Fang, Luo Jianyi etc., foreign scholar T.M.Afzal& are carried out
T.Abe, DasI, MuhmmedHussainRiadh etc..The similar drying machine of domestic production has the circulating far infrared long of Shanghai three
Drying machine, far infrared drying machine of gold agricultural machinery (Wuxi) Co., Ltd production etc..Research is substantially simple infrared at present
Radiant drying, however cereal is more than certain thickness, infra-red radiation is difficult to penetrate, and the heat that infrared radiation drying generates is higher
Exhaust gas be expelled directly out, heat is not utilized effectively.
Utility model content
The utility model is the drawbacks described above for solving the prior art, provides a kind of multifunctional assembled grain drying system.
The utility model provides a kind of multifunctional assembled grain drying system, including drying machine, and the drying machine is from upper
Grain storage section, combined type convection section, radiant section and grain discharging section are set gradually under；
The radiant section is equipped with radiative cylinder and burner, and the radiative cylinder surface is coated with infrared radiant material；The combination
Formula convection section connects main hot-flow flue, and the radiant section side is equipped with radiant section exhaust gas air duct, radiant section exhaust gas air duct and master
Hot-flow flue is connected.
Preferably, the grain drying system further includes wet granary and gulch storehouse；
The first elevator, the first belt feeder of first elevator upper end setting and wet paddy is arranged in the wet granary side
The second elevator, the lower end of second elevator and wet granary bottom is arranged in the connection of silo roof end entrance, the wet granary other side
The second belt feeder connection at end；The top that the third belt feeder of second elevator upper end setting connects the drying machine enters
Mouthful；4th belt feeder of the drying machine bottom end connects third elevator, and third elevator upper end is equipped with the 5th belt feeder,
Described 5th belt feeder one end connects the top inlet of the drying machine, and the other end connects the top inlet in the gulch storehouse.
Preferably, the side of the combined type convection section is equipped with exhaust air chamber, the discarded indoor configuration waste gas treatment equipment,
The waste gas treatment equipment is connected with exhaust gas air duct.
Preferably, the combined type convection section includes the rectangular box that metal plate surrounds, and the one of the rectangular box
Side is connect with main hot-flow flue, and the other side is equipped with exhaust air chamber, in the rectangular box body from top to bottom array be disposed with it is multiple by gold
Belong to the air inlet angle box and outlet air angle box of the pentagonal cross section that plate surrounds；The combined type convection section is combination cordwood structure, root
It is dry that concurrent drying structure, concurrent-countercurrent drying structure or mixed flow are differently formed according to the spread pattern of the air inlet angle box and outlet air angle box
Constipation structure.
Preferably, the combined type convection section is concurrent drying mechanism, and two rows of staggered rows are equipped in the rectangular box body
The angle box of column, wherein first row is air inlet angle box, and second row is outlet air angle box.
Preferably, the combined type convection section is concurrent-countercurrent drier, is equipped with three rows in the rectangular box body and interlocks
The angle box of arrangement, wherein first row is air inlet angle box, and second row is outlet air angle box, and third row is air inlet angle box.
Preferably, the mixed flow drying mechanism of the combined type convection section, the rectangular box body is interior to be equipped with four row's staggered rows
The angle box of column, wherein to enter the wind angle box, second row and the 4th row are outlet air angle box by first row and third row.
Preferably, the grain drying system further includes detection control apparatus, the detection control apparatus include computer,
PLC, moisture tester, temperature sensor and air velocity transducer.
Multifunctional assembled grain drying system provided by the utility model, combined type convection section use Combination Design, energy
Carry out the convective drying of individual three kinds dry flow patterns according to actual needs, can also carry out respectively three kinds of dry flow patterns to draining off
Dry combining with infrared radiation drying.Pass through the experiment of each dry flow pattern, it was demonstrated that the infrared radiation drying of the utility model with
The dry advantage of hot air convection combined heat, infrared radiation drying promote moisture to turn to surface layer using its high temperature inside cereal
It moves, the moisture that hot air convective drying will diffuse into cereal surface layer is taken away.The exhaust gas generated using infra-red radiation, with main hot-flow flue
The convective drying that combined type convection section carries out cereal is flowed into after cold air mixing, is achieved the effect that energy-efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to drying machine provided by the embodiment of the utility model；
Fig. 2 is according to grain drying system structural schematic diagram provided by the embodiment of the utility model；
Fig. 3 is the combined type convection section parallel flow configuration schematic diagram according to drying machine provided by the embodiment of the utility model；
Fig. 4 is the combined type convection section concurrent-countercurrent structural schematic diagram according to drying machine provided by the embodiment of the utility model；
Fig. 5 is the combined type convection section mixed-flow structure schematic diagram according to drying machine provided by the embodiment of the utility model；
In figure, 1. first elevators；2. wet granary；3. the first belt feeder；4. the second elevator；5. third belt feeder；6.
5th belt feeder；7. gulch storehouse；8 third elevators；9. the 4th belt feeder；10. drying machine；11. the second belt feeder；12. grain storage
Section；13. combined type convection section；14. radiant section；15. grain discharging section；16. exhaust air chamber；17. burner；18. exhaust gas air duct；19. main
Hot-flow flue；20. cold air；21. electrically operated valve；22. radiant section exhaust gas air duct；23. entering the wind angle box；24. outlet air angle box；25. spoke
Shooting cylinder；26. grain discharging wheel.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, is explicitly described the technical scheme in the embodiment of the utility model, it is clear that described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ability
It is practical new to belong to this for domain those of ordinary skill every other embodiment obtained without making creative work
The range of type protection.
Fig. 1 is the structural schematic diagram according to drying machine 10 provided by the embodiment of the utility model, as shown in Figure 1, described dry
Dry machine 10 sets gradually grain storage section 12, combined type convection section 13, radiant section 14 and grain discharging section 15 from top to bottom；
Radiative cylinder 25 is arranged in the radiant section 14 and burner 17,25 surface of radiative cylinder are coated with infrared radiant material；
The combined type convection section 13 connects main hot-flow flue 19, and radiant section exhaust gas air duct 22, radiant section exhaust gas is arranged in the radiant section 14
Air duct 22 is connect with main 19 side of hot-flow flue.
Wherein, grain storage section 12 and grain discharging section 15 are for placing and transporting cereal；Radiant section 14 is used for, and infrared radiant material is inhaled
The heat that burner 17 generates is received, infra-red radiation is carried out to the cereal of radiant section 14；Combined type convection section 13 is used for, described infrared
The exhaust gas that radiation generates flows into main hot-flow flue 19 by radiant section exhaust gas air duct 22, with the cold air 20 being passed through in main hot-flow flue 19
The convective drying that combined type convection section carries out cereal is flowed into after mixing.
Specifically, referring to Fig.1, radiative cylinder 25 is set in the radiant section 14 of drying machine 10, heat source is set in radiative cylinder 25, this
In embodiment, the high-temperature flue gas heating radiation cylinder generated by 4 burnings of burner 17,25 surface of radiative cylinder is coated with radiation blackness
Infrared radiant material greater than 0.95, infrared radiant material can absorb the heat of 25 flue gas of radiative cylinder generation, to radiant section 14
Cereal carry out infrared radiation drying.In addition, radiant section exhaust gas air duct 22, radiant section exhaust gas air duct 22 and master is arranged in radiant section 14
The connection of 19 side of hot-flow flue.Using the waste gas residual heat after infrared radiation drying after main hot-flow flue 19 is mixed into appropriate cold air 20,
It is passed through the convective drying that combined type convection section 13 carries out cereal.Cereal enters on drying machine 10 after end entrance, passes through grain storage respectively
Section 12, combined type convection section 13 and radiant section 14, and combined type convection section 13 and radiant section 14 successively carries out convective drying and
Infrared radiation drying finally enters grain discharging section 15.
Wherein, the convective drying of the utility model and combining with diesel oil, natural gas or coal gas for infrared radiation drying are hot
Source, with routine using coal compared with the heated-air drying mode of heat source, reduce pollution to environment.Using infrared radiation drying and hot wind
Convection current combined heat is dry, compared with conventional hot blast is dry, rate of drying of the cereal in drying machine faster, after grain dry
Better quality.
Grain drying system provided by the embodiment of the utility model, combine infrared radiation drying combine with hot air convection plus
The advantages of heated drying, infrared radiation drying promote moisture to shift to surface layer using its high temperature inside cereal, hot air convective drying
The moisture that will diffuse into cereal surface layer is taken away.The exhaust gas that the infra-red radiation generates flows into main heat by radiant section exhaust gas air duct 22
Air duct 19 flows into the convective drying that combined type convection section carries out cereal, reaches high after mixing with the cold air for being passed through main hot-flow flue
Imitate energy-efficient effect.
Fig. 2 is according to grain drying system structural schematic diagram provided by the embodiment of the utility model, referring to Fig. 2, the paddy
Object drying system further includes wet granary 2 and gulch storehouse 7；The first elevator 1 is arranged in 2 side of wet granary, and described first is promoted
First belt feeder 3 of 1 upper end of machine setting is connect with wet granary top inlet, and the second elevator is arranged in wet 2 other side of granary
4, the lower end of second elevator 4 is connect with the second belt feeder 11 of wet 2 bottom end of granary；Second elevator, 4 upper end is set
The third belt feeder 5 set connects the top inlet of the drying machine 10；The 4th belt feeder 9 connection the of 10 bottom end of drying machine
6 one end of the 5th belt feeder of three elevators 8,8 upper end of the third elevator setting connects the top inlet of the drying machine 10,
The other end connects the top inlet in the gulch storehouse.
Specifically, as shown in Fig. 2, grain drying system further includes wet granary 2 and gulch storehouse 7, it is located at drying machine 10
Two sides.When system works, wet cereal is sent to by wet granary 2 by the first elevator 1 and the first belt feeder 3, then wet paddy
Cereal is sent by the second belt feeder 11, the second elevator 4 and third belt feeder 5 to drying machine 10 in storehouse 2, when paddy in drying machine 10
Object reaches material position on drying machine, wherein upper material position is the upper limit position of drying machine 10, upper material position issues alarm, then drying machine 10 is opened
Process is dried in beginning, and cereal is sent cereal by the 5th belt feeder 6 of the 4th belt feeder 9, third elevator 8 and reversion again
Enter drying machine 10, carries out the cyclic drying of cereal according to this.When detecting that cereal moisture percentage is reduced to default moisture content, then by
Cereal is sent into gulch storehouse by four belt feeders 9, third elevator 8 and the 5th belt feeder 6 rotated forward.
On the basis of the various embodiments described above, the side of the combined type convection section 13 is equipped with exhaust air chamber 16, described discarded
Waste gas treatment equipment is configured in room and is connect with exhaust gas air duct 18.Exhaust air chamber 16 is used for 13 outlet air angle box 24 of combined type convection section
The drying exhaust gas of discharge is discharged into exhaust gas air duct 18, then is discharged into atmosphere from exhaust gas air duct 18.
Specifically, waste gas treatment equipment is primarily referred to as with different process technology, by recycling or removing, reduce discharge
The harmful components of tail gas, a kind of environmental protection equipment for reaching protection environment, purifying air, the environment of let us are not contaminated.Institute
The exhaust gas for stating infra-red radiation generation flows into main hot-flow flue 19 by radiant section exhaust gas air duct 22, with the cold sky for being passed through main hot-flow flue 19
Gas 20 flows into the convective drying that combined type convection section 13 carries out cereal after mixing, after the completion of convective drying, remainder of exhaust gas enters group
In the exhaust air chamber 16 of box-like convection section 13, after the waste gas treatment equipment in exhaust air chamber 16 completes exhaust-gas treatment, it is discharged into exhaust gas air duct
In 18, then it is discharged into atmosphere from exhaust gas air duct 18.The present embodiment is equipped with exhaust air chamber 16 in the side of combined type convection section 13, gives up
It abandons in room and configures waste gas treatment equipment, complete exhaust-gas treatment, avoid environmental pollution.
On the basis of the various embodiments described above, the combined type convection section 13 includes the rectangular box that metal plate surrounds,
The rectangular box side is connect with main hot-flow flue 19, and the other side is equipped with exhaust air chamber 16, in the rectangular box body from upper and
Under be staggered the air inlet angle box 23 equipped with several pentagonal cross sections surrounded by metal plate for thering is array to arrange and outlet air angle
Box 24.Combined type convection section is dry being respectively formed fair current by way of replacing the structure of combined type convection section according to process requirements
Constipation structure, concurrent-countercurrent drying structure or mixed flow drying structure.
Specifically, 10 overall structure of drying machine is building block system, facilitates dismantling, replacement.13 basis of combined type convection section
The spread pattern of air inlet angle box and outlet air angle box is differently formed concurrent drying structure, concurrent-countercurrent drying structure or mixed flow drying knot
Structure.As needed, concurrent drying, concurrent-countercurrent drying or mixed flow drying are realized by replacing the structure type of combined type convection section.
19 steel plate thickness of main hot-flow flue of drying machine 10 is not less than 1.5mm, and the setting of combined type convection section 13 is connect with main hot-flow flue 19
Angle box.Electrically operated valve 21 is arranged in main 19 entrance of hot-flow flue.In the present embodiment, the parameter list of grain drying system is as shown in table 1.
1 grain drying system parameter list of table
Fig. 3 is to be illustrated according to 13 parallel flow configuration of combined type convection section of drying machine 10 provided by the embodiment of the utility model
Figure, when combined type convection section 13 is concurrent drying mechanism, is staggered in the rectangular box body equipped with two rows referring to Fig. 3
Angle box, first row be air inlet angle box 23, second row be outlet air angle box 24.
Fig. 4 is the combined type convection section concurrent-countercurrent structural schematic diagram according to drying machine provided by the embodiment of the utility model；
Referring to Fig. 4, combined type convection section 13 is concurrent-countercurrent drier, and the staggered angle box of three rows is equipped in rectangular box body, the
One row is air inlet angle box 23, and second row is outlet air angle box 24, and third row is air inlet angle box 23.
Fig. 5 is the combined type convection section mixed-flow structure schematic diagram according to drying machine provided by the embodiment of the utility model；Ginseng
According to Fig. 5, when combined type convection section 13 is mixed flow drying mechanism, the staggered angle box of four rows is equipped in rectangular box body, the
One, three rows are air inlet angle box 23, and second, four rows are outlet air angle box 24.
On the basis of the various embodiments described above, the grain drying system further includes detection control apparatus, the detection control
Device processed includes computer, PLC, moisture tester, humidity sensor, temperature sensor and air velocity transducer；The moisture is surveyed
Examination instrument is used to measure the moisture content of cereal, and temperature sensor is for measuring grain temperature, hot air temperature, exhaust gas in drying machine 10
Temperature and environment temperature, and computer and touch screen are sent to after PLC is acquired；The humidity sensor for ambient humidity and
The detection of waste gas humidity, exhaust gas after the air velocity transducer predominantly detects main 19 wind speed of hot-flow flue, infrared exhaust gas wind speed and dries
Wind speed；The PLC be combined grain drying system master controller, for acquire cereal moisture percentage data, temperature, humidity and
Air speed data, is sent to computer and touch screen is stored and shown, and realizes the automatic control of drying system；The calculating
Machine and touch screen are used to store and show the data of the sensor detection, and operator is by the man-machine interface of design to cereal
Drying system is controlled.
Specifically, the grain drying system further includes detection control apparatus, the detection control apparatus include computer,
PLC, moisture tester, temperature sensor and air velocity transducer, grain drying system further include each equipment motor, electrically operated valve 21
With row's grain motor 26 etc.；The moisture tester enters machine and out machine moisture content data for measuring cereal, by PLC realize acquisition with
Conversion is sent to PLC；The temperature sensor includes being mounted in drying machine 10 after combined type convection section 13 and radiant section 14
Grain temperature detection sensor, hot blast temperature sensor, exhaust gas temperature and environment temperature sensor；The humidity sensor is used for environment
The detection of humidity and waste gas humidity；The air velocity transducer predominantly detects main 19 wind speed of hot-flow flue, infrared exhaust gas wind speed and drying
Exhaust gas wind speed afterwards；The data of all the sensor detections are acquired by the I/O module of PLC and conversion；Each equipment motor master
To include grain elevator, cereal belt conveyor and heat supply blower, dedusting fan, oil oven motor, and be opened by PLC
Stop controlling.
Further, electrically operated valve 21 can be controlled its opening size by PLC, and adjustment is passed through the cold air 20 of main hot-flow flue 19
Amount, the waste gas residual heat generated with infrared radiation drying realize 13 hot blast temperature of combined type convection section after main hot-flow flue 19 mixes
Control；Row's grain motor is frequency control, and equipment running frequency can manually and automatically be controlled between 0~50Hz by PLC；
The PLC is the master controller of combined grain drying system, for acquiring cereal moisture percentage data, temperature, humidity and wind speed
Data are sent to computer and touch screen are stored and shown, and realize the automatic control of drying system through ethernet communication
System；The computer and touch screen are used to store and show the data of the sensor detection, the people that operator passes through design
Machine interface controls grain drying system, and the man-machine interface of the computer and touch screen mainly includes main interface, start and stop
Control interface, real-time monitoring, operating status interface, manual control interface, historical record and alert interface.Operator is by setting
The man-machine interface of meter controls grain drying system, such as to 3 elevators, 5 belt feeders, row grain motor, dedusting wind
The control of machine and electrically operated valve 21.
The detection control apparatus of grain drying system carries out monitoring information each in Grain Drying Process real in the present embodiment
When acquire, realize long-distance centralized control using PLC and computer, man-computer interface is friendly, easy to operate.It solves at present
The problem of generally existing automation of crop dryer is insufficient, and measurement of water-content coefficient relies on manual sampling, lacks centralized detecting and control.
On the basis of the various embodiments described above, the moisture tester is specifically used for detection drying machine 10 and enters machine and out machine paddy
Water content of matter and temperature, moisture content error are ± 0.2%, and the moisture content and temperature signal are realized by the PLC and converted；
Believe correspondingly, the PLC is used to be converted to the real-time moisture content of the cereal and temperature signal identifiable number
Number, if the not up to default moisture content of the real-time moisture content of the cereal is known in PLC controller judgement, cereal is controlled from drying machine 10
Lower end outlet reenters 10 entrance of drying machine by the 4th belt feeder, third elevator and the 5th belt feeder of reversion,
Carry out the cyclic drying of cereal.If judgement knows that the real-time moisture content of the cereal reaches default moisture content, burner 17 is closed
Or hot-blast stove, control cereal is by the 4th belt feeder, third elevator and the 5th belt feeder of rotating forward under drying machine 10
It brings out mouth and is sent into gulch storehouse entrance.So far, cyclic drying terminates.
On the basis of the various embodiments described above, the temperature sensor is specifically used for, and detects combined type pair in drying machine 10
Grain temperature, radiative cylinder temperature, hot blast temperature and exhaust gas temperature after flowing section 13 and radiant section 14, the temperature letter of real-time detection
Number by PLC realize acquisition and conversion；
Correspondingly, the PLC is also used to, the temperature signal is converted into identifiable digital signal, through ether Netcom
Letter is sent to computer and touch screen, to realize grain temperature in drying process, exhaust gas temperature, radiative cylinder temperature, hot wind temperature
The Centralizing inspection of degree and control.
In a preferred embodiment, the process of grain drying system progress grain dry is as follows:
(1) as shown in Figure 1, cereal is sent into wet granary 2 by the first elevator 1 and the first belt feeder 3；
(2) cereal of wet granary 2 is sent into drying machine by the second belt feeder 11, the second elevator 4 and third belt feeder 5
10；
(3) the cereal accumulation in machine 10 to be dried reaches upper limit position, opens radiative cylinder 25 and burner 17, radiative cylinder is red
The heat that external radiation material is capable of the burning generation flue gas generation of absorption burner 17 carries out infra-red radiation, infrared spoke to radiant section 14
The high heat exhaust gas for penetrating generation flows into combined type convection section 13 after mixing with the cold air 20 for being passed through main hot-flow flue 19, adjust master
The size for the electrically operated valve 21 that 19 mouthfuls of hot-flow flue, and enter combined type convection section from main hot-flow flue 19 using temperature sensor monitoring
The temperature of 13 hot winds, when hot blast temperature reaches preset temperature, the grain discharging wheel 26 of drying machine 10 is started turning, and cereal is by drying machine
The grain outlet of 10 lower ends enters 10 entrance of drying machine by the 5th belt feeder 6 of the 4th belt feeder 9, third elevator 8 and reversion,
Respectively by grain storage section 12, combined type convection section 13 and radiant section 14, and combined type convection section 13 and radiant section 14 successively into
Row convective drying and infrared radiation drying realize that cereal circulates drying in drying machine 10；
(4) 10 entrance cereal of moisture tester real-time detection drying machine and outlet cereal moisture percentage, when cereal is aqueous in real time
When rate reduction reaches default moisture content, then radiative cylinder is closed, control cereal passes through the 4th belt feeder from the outlet of 10 lower end of drying machine
9, third elevator 8 and the 5th belt feeder 6 are sent into gulch storehouse 7, and drying process terminates.
Method for drying cereal provided by the utility model and system, combined type convection section use Combination Design technique, can be with
Concurrent drying, concurrent-countercurrent drying or mixed flow drying are realized in dismantling, replacement respectively by way of replacing combined type convection section, and
Combine with the radiant drying of radiant section and cereal is dried；The utility model combines infrared radiation drying and hot air convection joins
The advantages of closing heat drying, infrared radiation drying promote moisture to shift to surface layer using its high temperature inside cereal, hot air convection
The dry moisture that will diffuse into cereal surface layer is taken away.The exhaust gas generated using infra-red radiation, is mixed with the cold air of main hot-flow flue
The convective drying that combined type convection section carries out cereal is flowed into afterwards, is achieved the effect that energy-efficient.The utility model is with diesel oil, natural
Gas or coal gas are heat source, with routine using coal as the heated-air drying mode of heat source compared with, it is few to the pollution of environment.Using infra-red radiation
It is dry dry with hot air convection combined heat, compared with conventional hot blast is dry, rate of drying of the cereal in drying machine faster, paddy
Better quality after object is dry.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.Term " on ", "lower" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.Unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by foregoing individual embodiments, or carry out to part of technical characteristic
Equivalent replacement；And these are modified or replaceed, each embodiment of the utility model that it does not separate the essence of the corresponding technical solution
The spirit and scope of technical solution.
Claims (8)
1. a kind of multifunctional assembled grain drying system, which is characterized in that including drying machine, the drying machine from top to bottom according to
Secondary setting grain storage section, combined type convection section, radiant section and grain discharging section；
The radiant section is equipped with radiative cylinder and burner, and the radiative cylinder surface is coated with infrared radiant material；The combined type pair
It flows section and connects main hot-flow flue, the radiant section side is equipped with radiant section exhaust gas air duct, radiant section exhaust gas air duct and main hot wind
Road is connected.
2. grain drying system according to claim 1, which is characterized in that the grain drying system further includes wet granary
With gulch storehouse；
The first elevator, the first belt feeder of first elevator upper end setting and wet granary top is arranged in the wet granary side
The second elevator, the lower end of second elevator and wet granary bottom end is arranged in end entrance connection, the wet granary other side
The connection of second belt feeder；The third belt feeder of second elevator upper end setting connects the top inlet of the drying machine；Institute
The 4th belt feeder connection third elevator of drying machine bottom end is stated, third elevator upper end is equipped with the 5th belt feeder, described
5th belt feeder one end connects the top inlet of the drying machine, and the other end connects the top inlet in the gulch storehouse.
3. grain drying system according to claim 1, which is characterized in that the side of the combined type convection section is equipped with useless
Gas chamber, the exhaust air chamber is interior to configure waste gas treatment equipment, and the waste gas treatment equipment is connected with exhaust gas air duct.
4. grain drying system according to claim 1, which is characterized in that the combined type convection section includes that metal plate encloses
At rectangular box, the side of the rectangular box connect with main hot-flow flue, and the other side is equipped with exhaust air chamber, the rectangle
Array is disposed with the air inlet angle box and outlet air angle box of multiple pentagonal cross sections surrounded by metal plate from top to bottom in box body；It is described
Combined type convection section is combination cordwood structure, is respectively formed according to the air inlet angle box and the spread pattern difference of outlet air angle box
Concurrent drying structure, concurrent-countercurrent drying structure or mixed flow drying structure.
5. grain drying system according to claim 4, which is characterized in that the combined type convection section is downstream dryer
Structure, the rectangular box body is interior to be equipped with two rows of staggered angle boxes, wherein first row is air inlet angle box, and second row is outlet air
Angle box.
6. grain drying system according to claim 4, which is characterized in that the combined type convection section is dry for concurrent-countercurrent
Mechanism, the rectangular box body is interior to be equipped with the staggered angle box of three rows, wherein first row is air inlet angle box, and second row is out
Wind angle box, third row are air inlet angle box.
7. grain drying system according to claim 4, which is characterized in that the concurrent-mixed flow dryer of the combined type convection section
Structure is equipped with the staggered angle box of four rows in the rectangular box body, wherein and first row and third row are air inlet angle box, second
Row and the 4th row are outlet air angle box.
8. grain drying system described in any one according to claim 1~7, which is characterized in that the grain drying system
It further include detection control apparatus, the detection control apparatus includes computer, PLC, moisture tester, humidity sensor, temperature
Sensor and air velocity transducer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107788110A (en) * | 2017-11-23 | 2018-03-13 | 北京邮电大学 | A kind of method for drying cereal and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107788110A (en) * | 2017-11-23 | 2018-03-13 | 北京邮电大学 | A kind of method for drying cereal and system |
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