CN105707225A - Grain drying unit with constant hot air temperature - Google Patents

Grain drying unit with constant hot air temperature Download PDF

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Publication number
CN105707225A
CN105707225A CN201610138239.4A CN201610138239A CN105707225A CN 105707225 A CN105707225 A CN 105707225A CN 201610138239 A CN201610138239 A CN 201610138239A CN 105707225 A CN105707225 A CN 105707225A
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China
Prior art keywords
grain
drying
layer
air
hot
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Pending
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CN201610138239.4A
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Chinese (zh)
Inventor
郭寒冰
方许
赵子彬
黄冬青
吴善桂
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Anhui Xinshengli Biology Technology Co Ltd
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Anhui Xinshengli Biology Technology Co Ltd
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Priority to CN201610138239.4A priority Critical patent/CN105707225A/en
Publication of CN105707225A publication Critical patent/CN105707225A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B9/00Preservation of edible seeds, e.g. cereals
    • A23B9/08Drying; Subsequent reconstitution
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food 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

The invention discloses a grain drying unit with constant hot air temperature. The unit comprises a hot air furnace, a grain drying machine and a connection pipeline connecting the hot air furnace and the grain drying machine. The hot air furnace is a biomass hot air furnace, and grain waste is used as fuel. The grain drying machine is a batch type circulating grain drying machine and can achieve circulating drying. One end of the connection pipeline is connected with a hot air outlet, and the other end of the connection pipeline is connected with an air inlet cover. The connection pipeline is provided with an air pipeline which is provided with an air inlet valve. The air inlet valve is controlled by a valve motor driven by a control circuit, and can be automatically opened or closed according to the temperature of a drying layer. According to the grain drying unit, the temperature of the hot air can be quickly reduced when the temperature of hot air is too high, the temperature of the hot air is maintained constant, and the whole unit is high in energy utilization rate and low in cost.

Description

The grain heat-drying unit that a kind of hot blast temperature is constant
Technical field
The present invention relates to grain heat-drying machinery technical field, be specifically related to the grain heat-drying unit that a kind of hot blast temperature is constant.
Background technology
China is grain-production state maximum in the world and country of consumption, 500,000,000 tons of gross annual output grain.According to statistics, after China's grain harvest, the loss in the processes such as threshing, dry in the sun, storage, transport, processing, consumption is up to about 18%, considerably beyond the standard of the 5% of FAO's regulation.In these losses, every year because of climate reasons, corn have little time to dry or cause not up to safe moisture go mouldy, the grain of the loss such as germination is up to 5%, if calculating by producing 500000000 ton-grain foods per year, being equivalent to 25,000,000 ton-grain foods, if eating 500g grain for each person every day, being available for 6.8 ten thousand people edible 1 year.Therefore, the mechanization of corn drying is more even more important than the mechanization of farm work, and it is the important leverage condition of corn high yield, good harvest.Existing grain heat-drying unit many employings air stove adds the compound mode of foodstuff drying device, but existing grain heat-drying unit also exists the problems such as energy utilization rate is low, with high costs.
Additionally, existing grain heat-drying unit also exists the problems such as grain crack rate is high, rice milling yield is low.The factor producing quick-fried waist is a lot, drought, disease, white harvest excessively, machinery strike, hard hit, and Paddy With High Moisture Content Stored is subject to sharply dry and cooling sharply, or make moist moisture absorption time internal the expansion with surface shrinkage of the grain of rice uneven etc. all can make Cracked Rice.Wherein, in drying course, temperature is too high is one of common cause of causing percent cracked rice high.And in drying course, temperature is too high causes owing to hot blast temperature is too high.Existing foodstuff drying device often gathers drying chamber Temperature Feedback to the flow process controlling the hot blast temperature that module control module control hot air generator produces for the temperature control of hot blast temperature, this feedback mechanism is relatively slow, too high longer to reducing hot blast temperature flow process from collecting drying temperature.Therefore, need exploitation badly a kind of can quickly reduce hot blast temperature when hot blast temperature is too high, maintain the constant grain heat-drying unit of hot blast temperature.
Summary of the invention
The purpose of the present invention is aiming at the deficiencies in the prior art, it is provided that a kind of can quickly reduce hot blast temperature when hot blast temperature is too high, maintain the constant grain heat-drying unit of hot blast temperature, and whole unit energy utilization rate is high, cost is low.
Technical scheme is as follows:
The grain heat-drying unit that a kind of hot blast temperature is constant, including air stove, foodstuff drying device and the connection pipeline connecting air stove and foodstuff drying device.
Described air stove is biomass air stove, utilizes corn waste material as fuel, including the body of heater surrounded by outside framework and base, be provided with in body of heater lower section burner hearth, be positioned at above burner hearth add hot channel and with add the hot bellows that hot channel is connected;Hot bellows upper end is connected to the hot air duct led to outside body of heater, and hot air duct end is provided with hot-blast outlet;Body of heater upper end is provided with smoke exhaust fan, is connected by smoke discharging pipe between smoke exhaust fan with the outlet flue of body of heater.
Described foodstuff drying device is batch circular grain drying machine, it is possible to achieve cyclic drying;Described foodstuff drying device includes base, base is disposed with bottom, drying layer, shunting layer and storage from down to up and stays layer, and described bottom, drying layer, shunting layer and storage stay layer to be interconnected;Described base is also associated with lower screw feeder and elevator;Side, described elevator bottom is provided with feed hopper, and the top of described elevator is connected with upper screw feeder, and upper screw feeder stays layer to connect with storage;Described elevator is also associated with putting grain pipeline;Described drying layer connects with dialling grain valve, and described group of grain valve connects with lower screw feeder, and described lower screw feeder connects with feed hopper;Described drying layer side is provided with air intake cover.
One end of described connection pipeline is connected with hot-blast outlet, and the other end is connected with air intake cover;Connecting pipeline and be provided with air pipe line, described air pipe line is provided with air inlet valve;Described air inlet valve, by the control of the valve driving machine driven by control circuit, can be automatically opened or closed according to drying layer temperature height.
Further, described air stove is provided with four universal wheels, fixes and be connected between universal wheel with base.
Further, the inwall of described burner hearth is equipped with refractory brick.
Further, the bottom of described burner hearth is provided with fire bars.
Further, described storage stays layer to be 4-12 layer.
Further, described shunting layer is provided with triangled tip structure.
Further, described drying layer is provided with many networkings plate.
Further, described drying layer is connected with big blower fan also by outlet housing.
Further, described control circuit includes microprocessor and the temperature sensor being attached thereto and drive circuit;Wherein, temperature sensor is arranged near air intake cover.
Further, being provided with air filter in described air pipe line, this air filter is positioned at air inlet valve rear end;Rear end refers to that air first flows through air inlet valve, passes through air filter.
The grain heat-drying unit workflow of the present invention is as follows:
Corn waste material is put in the burner hearth of air stove and light, by combustion heating pipeline so that adding temperature in hot channel and rise, form hot blast in pipeline, hot blast flows through hot bellows, through hot-blast outlet air-out;The produced flue dust of burning, the suction through smoke exhaust fan is pulled, and flows out from the gap adding hot channel, arrives exhaust opening, and discharges from smoke exhaust fan;The bulky grain ashes such as carbon slag and lime-ash fall from the gap of fire bars, carry out ash disposal by ash disposal car.
The hot blast that air stove produces is connected pipeline after flowing out from hot-blast outlet, flows into drying layer then through air bells cap.Grain to be dried is delivered to storage and is stayed layer by the elevator of foodstuff drying device, storage stays the foodstuff grain in layer to flow on the web plate of drying layer by foodstuff grain uniformly by the triangled tip arranged in shunting layer, hot blast enters from air intake cover blows over after drying layer uniformly from the hole of web plate, the foodstuff grain on web plate is made uniformly to dry, the foodstuff grain that drying layer flows out is delivered into lower screw feeder by the grain valve of dialling arranged, foodstuff grain is sent into feed hopper again through pipeline by the lower screw feeder arranged, and then by elevator, grain is delivered to storage again again and stay layer, and repeat above-mentioned flow process until grain moisture content is up to standard.
When hothouse temperature is too high, control circuit drives valve driving machine to open air inlet valve, natural wind ambient temperature reduced introduces hot air duct, and then introducing hothouse, thus quickly reducing hothouse temperature, it is effectively ensured hothouse temperature in drying course, remains at steady temperature, it is ensured that corn quality in dry run.
Compared with prior art, the invention has the beneficial effects as follows:
The air stove of the present invention uses the fuel combustions such as rice husk, straw, timber, it is possible to greatly reduces cost, and improves the feature of environmental protection;By heating pipe design above burner hearth, hot bellows is arranged on and adds hot channel side, and hot wind flow path more conforms to aerodynamic principle;Adopting indirect heating manner to produce hot blast, the space that hot blast occurs is mutually isolated with combustion zone, and the hot blast of generation is cleaner.
Foodstuff grain can be carried out cyclic drying fast and effectively by the batch circular grain drying machine of the present invention, and drying area is big, and dry medium penetrance is good, dries uniformly, and efficiency is high;In dry run, grain constantly circulates, phase mutual friction between grain, removes the awns on grain surface, fine hair etc., and by blower fan discharge machine outside, improve dried grain clear cleanliness;Further, it is also possible to effectively reduce grain percent cracked rice in dry run, improve grain precision, thus lift grain quality;Additionally, easy for installation, floor space is little, it is easy to carry out inspection and maintenance, reduce the maintenance cost of dehydrator, extend the service life of dehydrator.
By adding air pipe line, can work as hothouse temperature too high time, quickly the natural wind that ambient temperature reduces is introduced hot air duct, and then introducing hothouse, thus quickly reducing hothouse temperature, it is effectively ensured hothouse temperature in drying course, remains at steady temperature, it is ensured that corn quality in dry run.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the air stove of the embodiment of the present invention;
Fig. 2 is the side structure schematic diagram of the air stove of the embodiment of the present invention;
Fig. 3 is the Facad structure schematic diagram of the foodstuff drying device of the embodiment of the present invention;
Fig. 4 is the side structure schematic diagram of the foodstuff drying device of the embodiment of the present invention;
Fig. 5 is the connection diagram of the grain heat-drying unit of the embodiment of the present invention;
Fig. 6 is the module connection figure of embodiment of the present invention hot blast thermostatic control system.
In figure, each labelling meaning is as follows:
1 air stove, 11 bodies of heater, 11a outside framework, 11b base, 12 burner hearths, 12a fire bars, 13 add hot channel, 14 hot bellows, 15 hot air ducts, 16 hot-blast outlets, 17 smoke exhaust fans, 18 outlet flues, 19 smoke discharging pipes, 110 universal wheels
2 foodstuff drying devices, 21 bases, 22 bottoms, 23 drying layers, 23a air intake cover, 23b web plate, 23c outlet housing, 24 shunting layer, 24a triangled tip, layer is stayed in 25 storages, 26 elevators, 26a feed hopper, 27 groups of grain valves, 28 times screw feeders, screw feeder on 29,210 big blower fans, 211 put grain pipeline
3 connect pipeline, 31 air pipe lines, 31a air inlet valve, 31b air filter.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The present invention provides the grain heat-drying unit that a kind of hot blast temperature is constant, including air stove, foodstuff drying device and the connection pipeline connecting air stove and foodstuff drying device, the following is specific embodiments of the invention.
The air stove 1 of the present embodiment is biomass air stove, utilizes corn waste material as fuel, as shown in figure 1 and 2.This air stove 1 includes the body of heater 11 surrounded by outside framework 11a and base 11b, be provided with in body of heater 11 lower section burner hearth 12, be positioned at above burner hearth add hot channel 13 and with add the hot bellows 14 that hot channel 13 is connected;Hot bellows 14 upper end is connected to the hot air duct 15 led to outside body of heater 11, and hot air duct 15 end is provided with hot-blast outlet 16;Body of heater 11 upper end is provided with smoke exhaust fan 17, is connected by smoke discharging pipe 19 between smoke exhaust fan 17 with the outlet flue 18 of body of heater.
Air stove 1 base 11b lower end is provided with four universal wheels 110, fixes and be connected between universal wheel 110 with base 11b.Adopt universal wheel 110 to be easy to equipment to move.
The inwall of burner hearth 12 is equipped with refractory brick, has effect of fire resistant heat preserving.The bottom of burner hearth 12 is provided with fire bars 12a, in order to the bulky grain ashes that burning produces fall from fire bars gap, it is simple to collects and cleans.
The foodstuff drying device 2 of the present embodiment is batch circular grain drying machine, it is possible to achieve cyclic drying, as shown in figures 3 and 4.Described foodstuff drying device 2 includes base 21, base is disposed with bottom 22, drying layer 23, shunting layer 24 and storage from down to up and stays layer 25, and described bottom 22, drying layer 23, shunting layer 24 and storage stay layer 25 to be interconnected;Described base 21 is also associated with lower screw feeder 28 and elevator 26;Side, described elevator bottom is provided with feed hopper 26a, and the top of described elevator 26 is connected with upper screw feeder 29, and upper screw feeder 29 stays layer 25 to connect with storage;Described elevator 26 is also associated with putting grain pipeline 210;Described drying layer 23 connects with dialling grain valve 27, and described group of grain valve 27 connects with lower screw feeder 28, and described lower screw feeder 28 connects with feed hopper 26a;Described drying layer 23 side is provided with air intake cover 23a;
The batch circular grain drying machine of the present embodiment is divided into 12 layers, is followed successively by from down to up: the 1st layer of bottom, the 2nd layer of drying layer, the 2nd layer of shunting layer, and layer is stayed in the storage of 4-12 layer.
Wherein, shunting layer 24 is provided with triangled tip structure 24a, for corn branches to drying layer equably;Drying layer 23 is provided with many networkings plate 23b, continues towards bottom by the grain of web plate 23b drying layer;
Drying layer 23 is connected with big blower fan 211 by outlet housing 23c;Dust in the malaria produced in drying course and corn, by outlet housing 23c, the suction through big blower fan 211 is pulled, and gets rid of (reaching the effect of cleaning cereal) from ash hole.
Accompanying drawing 5 is the unit attachment structure schematic diagram of the present embodiment.As it can be seen, one end of described connection pipeline 3 is connected with hot-blast outlet 16, the other end is connected with air intake cover 23a, and hot blast air stove 1 produced sends into the drying layer 23 of foodstuff drying device 2;Connect pipeline 3 and be provided with air pipe line 31;Air pipe line 31 is provided with air inlet valve 31a, and this air inlet valve 31a, by the control of the valve driving machine driven by control circuit, can be automatically opened or closed according to drying layer 23 temperature height.In air pipe line 31, the rear end of air inlet valve 31a is additionally provided with air filter 31b.Air filter can filter the dust in the air entering hot air duct and solid impurity, keeps hot blast clean, it is to avoid grain to be dried in hothouse is polluted.
The control system that air inlet valve is correlated with is as shown in Figure 6.The control system of the present invention, except being included into air-valve, also includes by control circuit and the valve driving machine that driven by control circuit, and wherein control circuit includes microprocessor and the temperature sensor being attached thereto and drive circuit;Temperature sensor is arranged near air intake cover (23a).
The grain heat-drying unit work process of the present embodiment is as follows:
The burner hearth 12 that corn waste material is put into air stove 1 is lighted, by combustion heating pipeline 13 so that adding temperature in hot channel 13 and rise, form hot blast in pipeline, hot blast flows through hot bellows 14, through hot-blast outlet 16 air-out;The produced flue dust of burning, the suction through smoke exhaust fan 17 is pulled, and flows out from the gap adding hot channel 13, arrives exhaust opening 18, and discharges from smoke discharging pipe 19;The bulky grain ashes such as carbon slag and lime-ash fall from the gap of fire bars 12a, carry out ash disposal by ash disposal car.
The hot blast that air stove 1 produces is connected pipeline 3 after flowing out from hot-blast outlet 16, flows into the drying layer 23 of foodstuff drying device 2 then through air bells cap 23a.
The work process of foodstuff drying device includes the following steps:
One, charging
Grain to be dried is put into feed hopper 26a, then passes through elevator 26 and grain is mentioned top, in entrance in screw feeder 29, then by upper screw feeder 29, grain is involved in Floor 12 (layer 25 is stayed in storage), waits until completely grain alarm sounded, stop charging.
Two, dry:
In drying course, grain flow to third layer (shunting layer 24) from Floor 12 (layer 25 is stayed in storage), through triangled tip structure 24a, grain is branched to uniformly the second layer (drying layer 23), hot blast enters from the air intake cover 23a of drying layer 23, contact with the grain flowing through drying layer 23, hot blast takes away the moisture on part grain surface, dust in the malaria produced and grain, by outlet housing 23c, suction through big blower fan 211 is pulled, (effect reaching cleaning grain) is got rid of from ash hole, dried grain flow to ground floor (bottom 22) through drying layer 23, cushioned by the grain valve 27 of dialling of bottom, sub-material, grain is divided into lower screw feeder 28, lower screw feeder 28 is through stirring, grain is delivered to elevator 26, again through elevator 26, grain mentioned upper screw feeder 29, it is delivered to Floor 12 again by upper screw feeder 29, dried grain carries out tempering slowly at top, make arrival surface (the such drying slowly of the moisture within grain, the percentage of damage of grain can be reduced).Move in circles through such, wait until that online Moisture Meter is measured grain moisture content and touched the mark, can stop drying.
Three, discharging:
After drying terminates, all motors on dehydrator can cut out, reservation elevator 26 operates, and opens and puts grain switch, and grain will pass through discharge hole for discharge, through putting grain pipeline 210, the grain that drying is good is shifted out, it is only necessary to artificial pulls away (multiple stage is dried can by auxiliary equipment, the discharging of disposable collective) with cloth bag or vehicle, all releasing etc. all of grain, discharging terminates.
If also having other grains to need to dry, repeat above step.
The control principle that in the present embodiment, hot blast temperature is constant is as follows: temperature sensor gathers the temperature of hothouse and is transferred to microprocessor, and the microprocessor temperature data to collecting and preset temperature range contrast;When hothouse temperature is higher than the preset temperature upper limit, microprocessor controls valve driving machine and drives air inlet valve to open, thus natural wind relatively low for ambient temperature is introduced hothouse, makes hothouse temperature be quickly reduced to temperature required.
The grain heat-drying unit the key technical indexes of the present embodiment is as follows:
The key technical indexes of the air stove of the present invention is as follows: the thermal efficiency >=55% of burning stem, and the thermal efficiency >=60% of burning rice hulls, the hot blast temperature of generation reaches as high as 180 DEG C.
When the batch circulation grain circulator of the present embodiment dries early rice, after drying, percentage of impurity is 1.05%, and moisture content is 23.0%, and moisture content unevenness is 1.3%;When drying late rice, after drying, percentage of impurity is 1.2%, and natural percentage of damage is 0%, and moisture content is 23.1%, and moisture content unevenness is 0.8%.
The air stove of the present embodiment uses the fuel combustions such as rice husk, straw, timber, it is possible to greatly reduces cost, and improves the feature of environmental protection;By heating pipe design above burner hearth, hot bellows is arranged on and adds hot channel side, and hot wind flow path more conforms to aerodynamic principle;Adopting indirect heating manner to produce hot blast, the space that hot blast occurs is mutually isolated with combustion zone, and the hot blast of generation is cleaner.
Foodstuff grain can be carried out cyclic drying fast and effectively by the batch circular grain drying machine of the present embodiment, and drying area is big, and dry medium penetrance is good, dries uniformly, and efficiency is high;In dry run, grain constantly circulates, phase mutual friction between grain, removes the awns on grain surface, fine hair etc., and by blower fan discharge machine outside, improve dried grain clear cleanliness;Further, it is also possible to effectively reduce grain percent cracked rice in dry run, improve grain precision, thus lift grain quality;Additionally, easy for installation, floor space is little, it is easy to carry out inspection and maintenance, reduce the maintenance cost of dehydrator, extend the service life of dehydrator.
The present embodiment is by arranging air pipe line and air inlet valve, when hothouse temperature is too high, the natural wind that ambient temperature reduces can be introduced hot air duct, and then introducing hothouse, thus quickly reducing hothouse temperature, hothouse temperature can be effectively ensured in drying course, remain at steady temperature, it is effectively ensured corn quality in dry run, it is prevented that corn is subject to the impact of high temperature and produces quick-fried waist.
Above example is only the preferred embodiments of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.Simultaneously, the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention, for one of ordinary skill in the art, thought according to the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.

Claims (10)

1. the grain heat-drying unit that hot blast temperature is constant, including air stove (1), foodstuff drying device (2) and the connection pipeline (3) connecting air stove and foodstuff drying device, it is characterised in that:
Described air stove (1) is biomass air stove, utilize corn waste material as fuel, including the body of heater (11) surrounded by outside framework (11a) and base (11b), be provided with in body of heater (11) lower section burner hearth (12), be positioned at above burner hearth add hot channel (13) and with add the hot bellows (14) that hot channel (13) is connected;Hot bellows (14) upper end is connected to leads to the hot air duct (15) that body of heater (11) is outside, and hot air duct (15) end is provided with hot-blast outlet (16);Body of heater (11) upper end is provided with smoke exhaust fan (17), is connected by smoke discharging pipe (19) between smoke exhaust fan (17) with the outlet flue (18) of body of heater;
Described foodstuff drying device (2) is batch circular grain drying machine, it is possible to achieve cyclic drying;Described foodstuff drying device (2) includes base (21), being disposed with bottom (22), drying layer (23), shunting layer (24) and storage on base from down to up and stay layer (25), described bottom (22), drying layer (23), shunting layer (24) and storage stay layer (25) to be interconnected;Described base (21) is also associated with lower screw feeder (28) and elevator (26);Side, described elevator bottom is provided with feed hopper (26a), and the top of described elevator (26) is connected with upper screw feeder (29), and upper screw feeder (29) stays layer (25) to connect with storage;Described elevator (26) is also associated with putting grain pipeline (210);Described drying layer (23) connects with dialling grain valve (27), and described group of grain valve (27) connects with lower screw feeder (28), and described lower screw feeder (28) connects with feed hopper (26a);Described drying layer (23) side is provided with air intake cover (23a);
One end of described connection pipeline (3) is connected with hot-blast outlet (16), and the other end is connected with air intake cover (23a);Connecting pipeline and be provided with air pipe line (31), described air pipe line (31) is provided with air inlet valve (31a);Described air inlet valve (31a), by the control of the valve driving machine driven by control circuit, can be automatically opened or closed according to drying layer (23) temperature height.
2. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described air stove is provided with four universal wheels (110), fixes and be connected between universal wheel (110) with base (11b).
3. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: the inwall of described burner hearth (12) is equipped with refractory brick.
4. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: the bottom of described burner hearth (12) is provided with fire bars (12a).
5. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described storage stays layer (25) to be 4-12 layer.
6. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described shunting layer (24) is provided with triangled tip structure (24a).
7. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described drying layer (23) is provided with many networkings plate (23b).
8. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described drying layer (23) is connected with big blower fan (211) also by outlet housing (23c).
9. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterised in that: described control circuit includes microprocessor and the temperature sensor being attached thereto and drive circuit;Wherein, temperature sensor is arranged near air intake cover (23a).
10. the grain heat-drying unit that a kind of hot blast temperature according to claim 1 is constant, it is characterized in that: being provided with air filter (31b) in described air pipe line (31), this air filter (31b) is positioned at air inlet valve (31a) rear end;Rear end refers to that air first flows through air inlet valve (31a), passes through air filter (31b).
CN201610138239.4A 2016-03-11 2016-03-11 Grain drying unit with constant hot air temperature Pending CN105707225A (en)

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Cited By (13)

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CN106196981A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of drying machine of the pretreatment that dehumidifies
CN106172739A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of energy-saving dryer
CN106172742A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of drying machine that can automatically adjust hot blast parameter
CN106172745A (en) * 2016-08-27 2016-12-07 黄浩华 A kind of grain heat-drying unit
CN106212669A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can corn drying and the drying machine of screening
CN106212670A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can the drying machine of cleaning residual corn automatically
CN106225428A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can the drying machine of remove impurity pretreatment
CN106234579A (en) * 2016-07-28 2016-12-21 合肥三伍机械有限公司 A kind of solar environment friendly drying machine
CN106288758A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of on-line checking grain moisture adjusts the drying machine of hot blast
CN106288744A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of reusable drying machine of hot blast
CN106288755A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of drying machine with maintenance observation window
CN106288756A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of drying machine cancelling the corn circulation upper and lower screw feeder of conveying
CN109916148A (en) * 2019-04-08 2019-06-21 山东交通职业学院 Cropper residual heat drying system

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CN106288744A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of reusable drying machine of hot blast
CN106225428A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can the drying machine of remove impurity pretreatment
CN106172742A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of drying machine that can automatically adjust hot blast parameter
CN106288756A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of drying machine cancelling the corn circulation upper and lower screw feeder of conveying
CN106212669A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can corn drying and the drying machine of screening
CN106212670A (en) * 2016-07-28 2016-12-14 合肥三伍机械有限公司 A kind of can the drying machine of cleaning residual corn automatically
CN106172739A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of energy-saving dryer
CN106234579A (en) * 2016-07-28 2016-12-21 合肥三伍机械有限公司 A kind of solar environment friendly drying machine
CN106288755A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of drying machine with maintenance observation window
CN106196981A (en) * 2016-07-28 2016-12-07 合肥三伍机械有限公司 A kind of drying machine of the pretreatment that dehumidifies
CN106288758A (en) * 2016-07-28 2017-01-04 合肥三伍机械有限公司 A kind of on-line checking grain moisture adjusts the drying machine of hot blast
CN106172745A (en) * 2016-08-27 2016-12-07 黄浩华 A kind of grain heat-drying unit
CN109916148A (en) * 2019-04-08 2019-06-21 山东交通职业学院 Cropper residual heat drying system
CN109916148B (en) * 2019-04-08 2021-06-01 山东交通职业学院 Waste heat drying system of harvester

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