CN107144119A - A kind of grain drying of hot air flow self-interacting type - Google Patents
A kind of grain drying of hot air flow self-interacting type Download PDFInfo
- Publication number
- CN107144119A CN107144119A CN201710441118.1A CN201710441118A CN107144119A CN 107144119 A CN107144119 A CN 107144119A CN 201710441118 A CN201710441118 A CN 201710441118A CN 107144119 A CN107144119 A CN 107144119A
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- CN
- China
- Prior art keywords
- grain drying
- dryness storehouse
- hot
- air flow
- hot air
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
- F26B17/1408—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material
-
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
Abstract
The present invention relates to a kind of grain drying of hot air flow self-interacting type, belong to grain drying technical field.Include：The grain drying device that the present invention is provided, with that can adjust the effect of delay section air mass flow, gradient control is realized to the hot air flow in drying process, the percent cracked rice in Grain Drying Process is reduced；The heat in the hot blast of extraction is recycled again simultaneously, the synergy for subtracting flow not reduction of heat amount is realized.
Description
Technical field
The present invention relates to a kind of grain drying of hot air flow self-interacting type, belong to grain drying technology neck
Domain.
Background technology
In Grain Drying Process, the moisture content of temperature, time and cereal is to influence the principal element of Quality of Grain Drying.
If the selection of drying means, technological parameter is improper, different degrees of quality damnification occurs in dried cereal, and such as stress splits
Line, fire damage, protein denaturation and uneven drying etc., and the transport to cereal, storage, the plantation of edible and seed cause
Harmful effect.Stress cracking is one of principal mode of grain quality damage, maximum to the qualitative effects of paddy and corn, easily
Cause significantly improving for percent cracked rice.
The content of the invention
The purpose of the present invention is：For hot air flow too high during tempering in Grain Drying Process cereal can be caused to do
The problem of dry percent cracked rice is high, it is proposed that a new grain drying device.
Technical scheme is：
A kind of grain drying of hot air flow self-interacting type, includes：
Dryness storehouse, for cereal to be dried；
Charging hopper is also set up in dryness storehouse side, for delivering cereal；
Charging hopper is connected to the conveyer belt at the top of dryness storehouse by elevator, used for conveyer belt dry in cereal is sent into from top
Dry storehouse；
Distributor, is arranged on the top inside dryness storehouse, and it is uniform that effect is that the cereal that top is fallen down carries out again redisperse；
In the main body of dryness storehouse, hot wind inlet and hot-blast outlet are provided with sideways；
Heater, for producing hot-air；Heater is connected by warm-air pipe with hot wind inlet；
In the inside of dryness storehouse, hollow shelf is additionally provided with, hollow shelf is vertically-mounted；It is distributed with hollow shelf wall micro-
Hole, the connection between inside and outside is realized by micropore；Micropore on hollow shelf is distributed for Graded Density from top to bottom, top
Density it is small, the density of bottom is big；The upper end of hollow shelf is closed, and lower end is connected to suction machine by air intake duct.
The pore diameter range of micropore is 0.5~1mm.
The quantity of hollow shelf can be polylith, arranged in parallel each other.
Filter is additionally provided with air intake duct, the impurity in the hot-air of sucking-off can be filtered out.
The partition of dispersed placement is additionally provided with inside dryness storehouse.
Evaporator is provided with the discharge line of suction machine, condenser, one end of evaporator are provided with warm-air pipe
One end of condenser is connected to by expansion valve, the other end of evaporator is connected to the other end of condenser by compressor.
Temperature monitoring module is additionally provided with the bottom of dryness storehouse, temperature monitoring module is used for the sky for monitoring dryness storehouse on-line
Temperature degree, when the difference DELTA T of the air themperature ascensional range of two time adjacent segments is more than given threshold, passes through control module
Improve the inspiratory capacity of suction machine.
Include hopper housing in the agent structure of charging hopper, be discharging opening below hopper housing, in funnel chamber
It is provided with the middle part of body in rotating shaft, rotating shaft and is provided with helical blade, is provided with above rotating shaft on rotating disk, rotating disk and is provided with bias
Axle, eccentric shaft is to be flexibly connected with one end of first connecting rod；Limiting plate is provided with the outside of hopper housing, is set on limiting plate
It is equipped with stopper slot, stopper slot and is socketed with second connecting rod, one end of second connecting rod is to be flexibly connected with the other end of first connecting rod,
Towards offering opening on the side of limiting plate on hopper housing, the outside of opening sets baffle plate, baffle plate and second connecting rod
The other end is connected.
Beneficial effect
The grain drying device that the present invention is provided, with the effect of delay section air mass flow can be adjusted, in drying process
Hot air flow realizes gradient control, reduces the percent cracked rice in Grain Drying Process；Simultaneously heat by the hot blast of extraction again
It is secondary to recycle, realize the synergy for subtracting flow not reduction of heat amount.
Brief description of the drawings
Fig. 1 is the structure chart for the grain drying that the present invention is provided；
Fig. 2 is temperature online monitoring flow chart；
Fig. 3 is the structure chart of charging hopper；
Fig. 4 is the structure chart of dial portion；
Wherein, 1, dryness storehouse；2nd, charging hopper；3rd, elevator；4th, conveyer belt；5th, distributor；6th, hot wind inlet；7th, warm-air pipe；
8th, partition；9th, hollow shelf；10th, hot-blast outlet；11st, air intake duct；12nd, suction machine；13rd, discharging opening；14th, evaporator；15th, compress
Machine；16th, expansion valve；17th, heater；18th, condenser；19th, hopper housing；20th, discharging opening；21st, rotating shaft；22nd, helical blade；
23rd, rotating disk；24th, eccentric shaft；25th, first connecting rod；26th, second connecting rod；27th, limiting plate；28th, stopper slot；29th, baffle plate；30th, open
Mouthful.
Embodiment
Embodiment 1
As shown in figure 1, grain drying device provided by the present invention, includes dryness storehouse 1, for cereal to be dried；
The side of dryness storehouse 1 also sets up charging hopper 2, and for delivering cereal, charging hopper 2 is connected to the top of dryness storehouse 1 by elevator 3
The conveyer belt 4 in portion, can by cereal from top send into dryness storehouse 1；Top inside dryness storehouse 1, is provided with distributor 5, it
Effect to be that the cereal that top is fallen down carries out again redisperse uniform, the main body of dryness storehouse 1 is entered in looser mode
In.Distributor can use gas redistributor or reciprocating sieve formula redistributor.
In the main body of dryness storehouse 1, the hot wind inlet of lateral flow type is used, hot blast is from side and the cereal that is fallen from above
Convection heat transfer' heat-transfer by convection is carried out, in Fig. 1, hot wind inlet 6 is on side, and hot-blast outlet 10 is also in side, and they are all represented by dashed line out；
Such as mode in the prior art, hot wind inlet 6 and hot-blast outlet 10 can have setting on the different height of dryness storehouse 1 simultaneously
（Do not drawn in figure）, hot wind inlet 6 and hot-blast outlet 10 can be serially connected to realize recycling for hot-air.Supply hot blast
Device also as covered in the prior art, hot-air is produced by heater 17, then hot wind inlet is supplied to by warm-air pipe 7
6。
In the inside of dryness storehouse 1, hollow shelf 9 is additionally provided with, hollow shelf 9 is vertically-mounted；On the wall of hollow shelf 9
Micropore is distributed with, the connection between inside and outside is realized by micropore；Micropore on hollow shelf 9 is Graded Density from top to bottom
Distribution, the density on top is small, and the density of bottom is big；The upper end of hollow shelf 9 is closed, and lower end is connected to suction by air intake duct 11
Machine 12.
It is the vaporization of cereal surface moisture in initial drying process because wet cereal is the top entrance from dryness storehouse 1
Process, during this, moisture transmission speed is very fast, it is therefore desirable to carried out under the conditions of big flow carrier gas, and temperature is most
Good appropriate reduction, this stage is referred to as dryer section；And after surface moisture is vaporized, cereal needs the water inside
Divide such a process for being transferred to cereal surface, in this process, there should not be higher drying temperature and dry speed
Rate, otherwise because internal moisture is partially slow to outside transmission speed, and outside is when being still within drying process, cereal easily occurs
The raising of percent cracked rice, in this stage, preferably by carrying out tempering under the conditions of low temperature, small carrier gas, in this process, hot gas compared with
Easily reach moisture balance, the transfer rate of water vapour can be reduced, it is to avoid the too fast drying on cereal surface and cause stress to be opened
Split, on the one hand can ensure that moisture is migrated from the inside, while also reducing percent cracked rice.In the drying process, suction is passed through
Machine 12 extracts air out from hollow shelf 9, because the micropore distribution density on the top of hollow shelf 9 is small, thus top hot blast still
Higher flow can be so kept, and when hot blast enters to the delay section of bottom, because pore density is improved, hot blast is just under
Suctioned out in the micropore in portion so that the carrier gas flux of bottom declines, and slows down rate of drying, it is to avoid opening for tempering stage cereal
Split.Simultaneously as containing the impurity, mistake of these impurity in negative-pressure ward such as many trickle dust, particulate matter, fragment in cereal
Cheng Zhong, can take out of from micropore, and then improve the quality after grain dry.In a preferred embodiment, micropore
Pore diameter range is 0.5~1mm.
In one embodiment, the quantity of hollow shelf 9 can be polylith, arranged in parallel each other.
In one embodiment, filter is additionally provided with air intake duct 11, can be in the hot-air of sucking-off
Impurity is filtered out.
In one embodiment, the partition 8 of dispersed placement is additionally provided with inside dryness storehouse 1.It can be played paddy
The effect that thing constantly stops, disperseed, is improved its residence time, realizes preferably thermal conduction effect.
In one embodiment, evaporator 14 is provided with the discharge line of suction machine 12, is set in warm-air pipe 7
There is condenser 18, one end of evaporator 14 is connected to one end of condenser 18 by expansion valve 16, and the other end of evaporator 14 leads to
Overcompression machine 15 is connected to the other end of condenser 18.Condenser 18, compressor 15, evaporator 14 and expansion valve 16 constitute one
Individual heat pump, after heat pump starts, evaporator 14 obtains energy from the air heat source in the discharge line of suction machine 12,
The side of condenser 18 is transferred heat to by the working medium of heat pump, because condenser 18 is to be in the inside of warm-air pipe 7, that
After heater 17, the air that it is produced can be entered to inside warm-air pipe 7, exchanged heat with condenser 18, by heat pump
Heat in system is taken away, next, heated air can be entered inside dryness storehouse 1 by warm-air pipe 7.Using such knot
Structure, it is possible to achieve the heat for the air extracted out from air baffle 9 is used again.From device on the whole, air baffle 9
The adjustment effect that the air mass flow of delay section reduces is realized, and after heat pump reclaims derived atmospheric heat again, is sent
Warm-air pipe 7 is back to, recycling for heat is realized, conspiracy relation is constituted each other, hot air flow is both reduced, be turn avoid
The loss of heat, realizes and subtracts the effect that flow does not lose heat.
In one embodiment, temperature monitoring module is additionally provided with the bottom of dryness storehouse 1, temperature monitoring module is used for
The air themperature of dryness storehouse 1 is monitored on-line, when the difference DELTA T of the air themperature ascensional range of two time adjacent segments is more than setting
During threshold value, the inspiratory capacity of suction machine 12 is improved by control module.Because the moisture distribution of cereal is uneven, even if with batch of
Cereal can also have the problem of portion of water is high, portion of water is low, therefore, in Grain Drying Process, due to cereal
The fluctuation of moisture can cause being not suitable for for operating parameter, particularly when to the grain dry of low moisture content, can cause
The drying temperature or air mass flow of delay section are too high, and cause the problem of percent cracked rice is improved.Therefore, by detecting the sky of delay section
Temperature degree, when obvious ascendant trend occurs in air themperature, illustrates that this batch of cereal may be because moisture is low and leads
The problem of causing over-drying, raises delay section air themperature, and the moisture inside cereal has little time to migrate to surface progress vapour
Change.When the Δ T of air themperature uphill process exceedes threshold value, the inspiratory capacity of suction machine 12 is improved, the sky of delay section can be reduced
Throughput, it is to avoid the problem of over-drying.
Due to harvesting the wet cereal taken when stacking, easily there is the moisture evaporation of the cereal on top, and bottom is due to sky
Hermetic seal and cause the higher situation of moisture, can be due to cereal up and down when these cereal are fallen down from charging hopper 2
Moisture is uneven and causes drying process operating parameter to be not suitable for, and it is good partially dried effect easily occur, and partially dried effect
Bad the problem of.As shown in figure 3, in one embodiment, hopper housing 19 is included in the agent structure of charging hopper 2,
It is discharging opening 20 in the lower section of hopper housing 19, is provided with the middle part of hopper housing 19 in rotating shaft 21, rotating shaft 21 and is provided with spiral
Blade 22, is provided with rotating disk 23, rotating disk 23 in the top of rotating shaft 21 and is provided with eccentric shaft 24, eccentric shaft 24 and first connecting rod 25
One end for be flexibly connected；The outside of hopper housing 19 is provided with limiting plate 27, as shown in figure 4, being set on limiting plate 27
Second connecting rod 26 is socketed with limited location groove 28, stopper slot 28, one end of second connecting rod 26 and the other end of first connecting rod 25 are
It is flexibly connected, towards opening 30 is offered on the side of limiting plate 27 on hopper housing 19, the outside of opening 30 sets baffle plate
29, baffle plate 29 is connected with the other end of second connecting rod 26.
When in use, pour into wet cereal from the top of hopper housing 19 first, wet cereal after inside cavity is entered to,
Can be piled up on helical blade 22, it is affected by gravity after, wet cereal can move downward and simultaneously drive helical blade 22 enter
Row is rotated, and then rotating shaft 21 is also produced rotation, and because rotating disk 23 is located at the top of rotating shaft 21, therefore, rotating disk 23 can also enter therewith
Rotate Line Continuity.Due to being provided with eccentric shaft 24 on rotating disk 23, and on eccentric shaft 24 with the activity of first connecting rod 25 even
Connect, therefore, the rotation of rotating disk 17 can drive first connecting rod 25 to be moved again, because the other end of first connecting rod 25 is and clamping
Second connecting rod 26 in stopper slot 28 is flexibly connected, then after first connecting rod 25 around the shaft 20 motions, it is possible to band
Dynamic second connecting rod 26 is moved back and forth in stopper slot 26, and because the bottom of second connecting rod 26 is connected with baffle plate 29, and baffle plate 29
It is arranged at the outside of opening 30, then with the reciprocating motion of second connecting rod 26, baffle plate 29 will periodically make opening 30 dozens
Open or close.Because wet cereal is flowed out from top to bottom from hopper housing 19, the rate of outflow of wet cereal can be by certain
Delay, and because opening 30 can be opened and closed periodically, then the wet cereal of low moisture content above will
Directly fallen by opening, fall into elevator 3, it is to avoid the problem of moisture is uneven when wet cereal enters elevator.
Claims (8)
1. a kind of grain drying of hot air flow self-interacting type, it is characterised in that include：
Dryness storehouse（1）, for cereal to be dried；
In dryness storehouse（1）Side also sets up charging hopper（2）, for delivering cereal；
Charging hopper（2）Pass through elevator（3）It is connected to dryness storehouse（1）Top conveyer belt（4）, conveyer belt（4）For inciting somebody to action
Cereal sends into dryness storehouse from top（1）；
Distributor（5）, it is arranged on dryness storehouse（1）Internal top, effect is that the cereal that top is fallen down carries out redisperse again
Uniformly；
In dryness storehouse（1）Main body in, hot wind inlet is provided with sideways（6）And hot-blast outlet（10）；
Heater（17）, for producing hot-air；Heater（17）Pass through warm-air pipe（7）With hot wind inlet（6）Connection；
In dryness storehouse（1）Inside, be additionally provided with hollow shelf（9）, hollow shelf（9）To be vertically-mounted；Hollow shelf（9）Wall
Micropore is distributed with face, the connection between inside and outside is realized by micropore；In hollow shelf（9）On micropore from top to bottom for ladder
Density Distribution is spent, the density on top is small, and the density of bottom is big；Hollow shelf（9）Upper end it is closed, lower end passes through air intake duct（11）
It is connected to suction machine（12）.
2. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that the aperture of micropore
Scope is 0.5~1mm.
3. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that hollow shelf
（9）Quantity can be polylith, it is arranged in parallel each other.
4. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that in air intake duct
（11）On be additionally provided with filter, the impurity in the hot-air of sucking-off can be filtered out.
5. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that in dryness storehouse
（1）Inside is additionally provided with the partition of dispersed placement（8）.
6. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that in suction machine
（12）Discharge line in be provided with evaporator（14）, in warm-air pipe（7）In be provided with condenser（18）, evaporator（14）One
End passes through expansion valve（16）It is connected to condenser（18）One end, evaporator（14）The other end pass through compressor（15）It is connected to
Condenser（18）The other end.
7. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that in dryness storehouse
（1）Bottom be additionally provided with temperature monitoring module, temperature monitoring module is used to monitor dryness storehouse on-line（1）Air themperature, when
When the difference DELTA T of the air themperature ascensional range of two time adjacent segments is more than given threshold, is improved and aspirated by control module
Machine（12）Inspiratory capacity.
8. the grain drying of hot air flow self-interacting type according to claim 1, it is characterised in that charging hopper
（2）Agent structure in include hopper housing（19）, in hopper housing（19）Lower section be discharging opening（20）, in hopper housing
（19）Middle part is provided with rotating shaft（21）, rotating shaft（21）On be provided with helical blade（22）, in rotating shaft（21）Top be provided with turn
Disk（23）, rotating disk（23）On be provided with eccentric shaft（24）, eccentric shaft（24）With first connecting rod（25）One end for be flexibly connected；
Hopper housing（19）Outside be provided with limiting plate（27）, in limiting plate（27）On be provided with stopper slot（28）, stopper slot（28）
In be socketed with second connecting rod（26）, second connecting rod（26）One end and first connecting rod（25）The other end for be flexibly connected, leakage
Struggle against cavity（19）On towards limiting plate（27）Side on offer opening（30）, opening（30）Outside set baffle plate（29）,
Baffle plate（29）With second connecting rod（26）The other end connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441118.1A CN107144119B (en) | 2017-06-13 | 2017-06-13 | A kind of grain drying of hot air flow self-interacting type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441118.1A CN107144119B (en) | 2017-06-13 | 2017-06-13 | A kind of grain drying of hot air flow self-interacting type |
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| Publication Number | Publication Date |
|---|---|
| CN107144119A true CN107144119A (en) | 2017-09-08 |
| CN107144119B CN107144119B (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710441118.1A Active CN107144119B (en) | 2017-06-13 | 2017-06-13 | A kind of grain drying of hot air flow self-interacting type |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310831A (en) * | 2018-01-12 | 2018-07-24 | 佛山诗勤智能科技有限公司 | A kind of improved industrial cooling water reusing device |
| CN109173560A (en) * | 2018-10-19 | 2019-01-11 | 吉林工商学院 | A kind of condensation cycle gain of heat continous way alternating temperature grain dry energy saver and its control method |
| CN110767423A (en) * | 2019-11-14 | 2020-02-07 | 杭州优朴信息技术有限公司 | Transformer respirator with optimized structure |
| CN113803968A (en) * | 2021-09-03 | 2021-12-17 | 江苏悦谷农业科技发展有限公司 | Grain drier and control method of drying layer flow and heat supply quantity thereof |
| CN113892351A (en) * | 2021-09-14 | 2022-01-07 | 徐州市海涛制冷设备有限公司 | Air energy cold and hot fan granary structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108310831A (en) * | 2018-01-12 | 2018-07-24 | 佛山诗勤智能科技有限公司 | A kind of improved industrial cooling water reusing device |
| CN109173560A (en) * | 2018-10-19 | 2019-01-11 | 吉林工商学院 | A kind of condensation cycle gain of heat continous way alternating temperature grain dry energy saver and its control method |
| CN109173560B (en) * | 2018-10-19 | 2023-10-24 | 吉林工商学院 | Condensation circulation heat increasing continuous variable-temperature grain drying energy-saving device and control method thereof |
| CN110767423A (en) * | 2019-11-14 | 2020-02-07 | 杭州优朴信息技术有限公司 | Transformer respirator with optimized structure |
| CN110767423B (en) * | 2019-11-14 | 2020-08-28 | 浙江镜小二网络科技有限公司 | Transformer respirator with optimized structure |
| CN113803968A (en) * | 2021-09-03 | 2021-12-17 | 江苏悦谷农业科技发展有限公司 | Grain drier and control method of drying layer flow and heat supply quantity thereof |
| CN113892351A (en) * | 2021-09-14 | 2022-01-07 | 徐州市海涛制冷设备有限公司 | Air energy cold and hot fan granary structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107144119B (en) | 2019-02-12 |
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