CN206043277U - Aspiration circulating grain dryer - Google Patents

Abstract

The utility model discloses aspiration circulating grain dryer, belong to drying plant technical field, shutter board is fixedly connected with lower grain storage room and the cavity between shutter board and funnel-shaped structure is sub-material chamber, the hollow structure of shutter board forms the air-inlet cavity connected with thermal source hot-blast outlet, in drying, grain cylinder reaches shutter board charging air inlet formed below through air-inlet cavity and upper end is indoor positioned at upper separation, the blast cap being coaxially disposed is provided with drying above grain cylinder, passage is left between blast cap and the upper grain cylinder of drying and forms discharge exhaust outlet, in drying, grain cylinder forms drying channel by the blower fan being arranged at the top of upper separation chamber.Grain and hot blast carry out direct and sufficient contact in uphill process, so as to by grain heat-drying, dry without medium air draught type, so that good drying effect, uniformity is good, can effectively prevent grain from rotten situation of going mouldy and germinate, simple structure occur in links such as storage, transport, processing, it is convenient to use, it is time saving and energy saving.

Description

Aspiration circulating grain dryer

Technical field

This utility model belongs to drying plant technical field, is related to aspiration circulating grain dryer.

Background technology

The grain major part contained humidity that peasant has just harvested is higher, such as reduces moisture not in time, can cause in storage, fortune There is rotten situation of going mouldy and germinate in the links such as defeated, processing, so grain drying becomes an important step in grain puerperal, It is an extremely important condition of grain security storage.Artificial dry in the sun, not only needs very big place, and grain is being spread It is put into during grain is packed up storage after dry in the sun place, solarization are got well, wastes time and energy, labor intensity is larger, and work efficiency is relatively low, So foodstuff drying device arises at the historic moment.

The foodstuff drying device industry of China starts to walk from initial extensive style, drum-type, is stepped up to criticize from after 2012 Secondary tower crop drier, increased high tower continuous dryer again from 2013, and in China, domestic grain drying device is new so far Old altogether three generation products come into operation, and capture China's grain heat-drying market, are that the grain processing of China's agricultural production is done and contributed, Putting on market in all different degrees of demand for having complied with market at that time of different historical stages for three sections of products, meets grain The processing hope of Planting household.But the improvement of the adjustment and pattern of farming with national policy, three sections of products all can not meet use Demand, gives individually below and dialyses：

(1) extensive roller dryer：

The product is that market starts, and thing, material enable such type, this machine containing purchase spot and processing stand Feedstuff Enterprises The manufacture of type, start to be very extensive do not possess detection, control function, the direct grind turning in cylinder of grain is particularly easy to dry Jiao, the uniformity are very low, and loss rate is very high, and the product has essentially dropped out market now.

(2) batch tower crop drier：

The product is the foreign technology introduced, and the introduction of the technology is primarily directed to China's Rice Production and manufactures and designs Product, the listing of the product are made that certain contribution for Rice Production industry, but the product cost is high, it is high to consume energy, work effect Rate is low, and the corn brightness of drying is low, and the rice quality of baking is poor, but peasant does not have advanced technical equipment select this to set yet It is standby to be processed production.

(3) continuous type drying tower foodstuff drying device：

This type is to enter market in recent years, the major consumers market of the product be for high-volume grain processing family, Particularly sold in northeast, Inner Mongol, three, Xinjiang area, the farm big farming household in above-mentioned area, home farm is relatively Many, the temperature of the product drying is higher, and grain is mainly Semen Maydiss, and other products can not be dried, and the advantage of the product is that baking amount is big, Yield is high, but drying expense is also high, and its minimum temperature is 180 DEG C, and above drying yield is mainly dried by high temperature, the product Maximum problem is：1. the Semen Maydiss form gelatinizing dried, the product for baking can only be made feedstuff and can not eat, and go out starch rate also very It is low；2. cost is high, dries costly；3. put into high；4. the use range and the range of work of the product is limited.

Three sections of products more than comprehensive, no matter advantage might as well, shortcoming might as well, be all that using single, range of application is limited, and all Using the drying processing for having medium, the increase of production cost is caused, because there is medium increase to cause drying expense to increase, this is put into Impute to the user of drying plant.

The content of the invention

This utility model devises aspiration circulating grain dryer to overcome the defect of prior art, make hot blast with Grain directly contact simultaneously rises with grain, and by grain heat-drying in uphill process, uniformity is good, and low production cost is processed into This low, a tractor serves several purposes, can be used for all grains includes baked seed, has saved investment of the grain-production person to drying plant, energy Meet grain-production person's demand of domestic all regions, the drying demand of domestic various plantation qualities can be met.

The concrete technical scheme taken by this utility model is：Aspiration circulating grain dryer, including thermal source and baking oven, The hot-blast outlet of thermal source is connected with the hot wind inlet of baking oven, it is important to：Described baking oven includes separation chamber, in drying grain cylinder and Lower end is the lower grain storage room of funnel-shaped structure, and charging aperture is provided with lower grain storage room, is provided with discharging opening and goes out in upper separation chamber Air port, sets up the shutter board of tubular inside funnel-shaped structure, and shutter board is fixedly connected with lower grain storage room and shutter board and funnel Cavity between shape structure is sub-material chamber, and the hollow structure of shutter board forms the air-inlet cavity connected with thermal source hot-blast outlet, dries Upper grain cylinder reaches shutter board charging air inlet formed below through air-inlet cavity and upper end is indoor positioned at upper separation, in drying on grain cylinder Side is provided with the blast cap being coaxially disposed, and blast cap includes inverted conical structure and is fixed on the cap of conical structure upper surface Eaves, leaves passage between blast cap and the upper grain cylinder of drying and forms discharge exhaust outlet, and in drying, grain cylinder is by being arranged on upper separation ceiling The blower fan in portion forms drying channel.

Discharge outlet in upper separation chamber sets up mozzle and discharge nozzle, and mozzle is hinged with upper separation chamber and is made on mozzle End is connected with the discharging opening of upper separation chamber and lower end connects to form tapping channel with discharge nozzle, or mozzle upper end with upper point Discharging opening from room is connected and lower end connects to form secondary drying passage with the sub-material chamber in lower grain storage room.

Described discharge nozzle is obliquely installed and above near one end of mozzle.

On described blast cap, the central angle of conical structure is less than or equal to 90 ° more than 0 °.

The described the brim of a hat is slab construction or truncated cone-shaped tube structure, the lower surface of slab construction and conical structure Upper surface be fixedly connected, the smaller diameter end of truncated cone-shaped tube structure is above and upper surface of with conical structure is fixed and connected Connect the cap structure to form that longitudinal section is M shapes.

The quantity of the shutter board is at least three, and all shutter boards are vertically arranged and all coaxial with lower grain storage room Arrange, the lower surface of each shutter board is all located at the lower section of shutter board upper surface below, and all sub-material chambers are sequentially communicated, most go up Floor sub-material chamber is connected with the charging aperture on lower grain storage room, and orlop sub-material chamber is connected with air-inlet cavity.

Top is set up above the shutter board in lower grain storage room and is provided with the inner core covered in taper, inner core is same with lower grain storage room Axle is arranged and is fixedly connected, and the cavity between inner core and lower grain storage room is blanking chamber, and blanking chamber connected with sub-material chamber.

The air intake and outlet air end of the blower fan all with connect inside upper separation chamber, set up return air cylinder, the import of return air cylinder Connect with the air outlet of upper separation chamber, the outlet of return air cylinder with connect inside inner core and exit be provided with windward plate shape into unidirectional Air outlet is offered all on valve, inner core and lower grain storage room, in drying, the middle part of grain cylinder is through inside inner core.

Described blower fan includes drive mechanism, upper location-plate and the lower location-plate being coaxially disposed, and upper location-plate is located at and drives Be fixedly connected below mechanism and with the output shaft of drive mechanism, be along the circumferential direction fixed with upper location-plate lower surface one group it is vertical The flabellum plate of setting, the lower end of flabellum plate are fixedly connected with the upper surface of lower location-plate, and upper location-plate periphery is fixed with locating ring, One group location hole is offered on locating ring along the circumferential direction, blower fan is fixedly connected with upper separation chamber by the location hole on locating ring Forming closed structure makes that lower location-plate and flabellum plate are all located inside separation chamber and lower location-plate is separated between chamber interior walls with Leave air-out chamber.

The air outlet of the thermal source is provided with lower screen plate, is provided with screen plate below upper separation indoor fan, The lower grain controller being made up of inner core and outer tube is provided with lower grain storage room bottom, the cavity between inner core and outer tube is that bottom is close The excessively stream chamber that envelope, upper end are connected with sub-material chamber, in drying, grain cylinder lower end is located inside inner core and along the circumferential direction opens up on the wall of side Have one group of charging aperture, the position corresponding with charging aperture also offers via on inner core, lower grain controller and the upper grain cylinder of drying it Between make inner core become lower grain speed adjustment structure to be rotatably assorted, be fixed with rotating handles on outer drum outer wall.

The beneficial effects of the utility model are：The air intake intracavity that the hot blast that thermal source is produced is entered in lower grain storage room, grain quilt The sub-material intracavity in lower grain storage room is sent into, is sucked grain and hot blast in the upper grain cylinder of drying simultaneously using blower fan, grain and hot blast Direct and sufficient contact is carried out in uphill process, so as to by grain heat-drying, dry without medium air draught type so that drying effect Good, uniformity is good, can effectively prevent grain from rotten situation of going mouldy and germinate, knot occur in links such as storage, transport, processing Structure is simple, convenient to use, time saving and energy saving, specific as follows：

(1) without medium drying with advantages below：

A, the direct heat exchange for realizing hot blast and grain, substantially increase the efficiency of grain heat-drying, equally, temperature drying It is the 4-5 of other dehydrators (in addition to Oryza sativa L. is dried, because the drying temperature of Oryza sativa L. is constant temperature, the quick-fried waist of the too high meeting of temperature) drying efficiency Again (particularly when grain is millet and Semen Maydiss)；

B, hot blast temperature can be adjusted according to the difference of grain variety, therefore its grain covers all grain bags Include including seed, really realize a tractor serves several purposes；

C, due to without medium and easy to operate, having saved drying expense and labour cost, grain is exchanged with the direct of hot blast So that grain is with most fast speed dewatered drying, drying time reduces by more than 50%, is that domestic any one equipment all can not phase Ratio；

Dielectric material is saved in d, drying machine production process, make the cost of investment of equipment reduce by more than 20%, drying takes With reducing by more than 50%, the investment that peasant is used to drying machine is alleviated；

E, without media implementation, drying damaged impurity is greatly reduced, in other foodstuff drying devices, because of the presence of medium So that breakage, particularly continuous type drying tower foodstuff drying device occurs in grain, grain is carried out with medium through more than ten meters of height Collision many times, loss rate are higher, and the utility model realizes the direct heat exchange of hot blast and grain, and grain is not any The collision of amboceptor, only hot blast and grain combine together, and hot blast will not make grain damaged, so drying course loss rate is almost Zero.

F, because without parameters such as medium, temperature, wind speed, efficiency, grain flows, can be according to the granular size of grain, weight Amount, adaptive temperature, gelatinization degree, receipts bud rate, percent cracked rice, flour extraction etc. are adjusted correspondingly, so as to according to drying grain product The difference planted performs different stoving processes, and this utility model realizes heat exchange, hot blast using the hot blast and grain of different temperatures Will not recycle, all be new warm-air supply grain that thermal source is sent, there is no the moisture regain that return air brings, only grain moisture content and tide Wet discharge realizes dehydration, makes grain quality not get damp again the pollution for bringing, either Oryza sativa L., seed, millet, Semen Maydiss, various beans Class, during drying and dewatering discharges some nuisances of grain so that the quality of grain keeps genuine, improves grain Quality.

(2) air draught type drying is with advantages below：

A, with high-power air suction function grain with inhale per hour grain 20-25 tons circulation rate lifted, a few minutes when Between complete once to be lifted, the purpose of dehydration is realized in the heat exchanging process of a few minutes, drying time is shortened, baking is improve Dry efficiency；

B, the utility model reflect reciprocity theorem using mechanics, and grain and hot blast are separated so that per circulation primary Separate once, dehydration purpose is realized in the countless separation circulations of Jing；

C, the utility model maximum feature are that a blower fan realizes feeding, discharging, drying and dewatering, impurity separation, and it is Formed according to various mechanics principles and law research utility model, have highly important meaning of implementing and use value.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the upward view of blower fan in Fig. 1.

In accompanying drawing, 1 represents thermal source, and 2 represent upper separation chamber, and the lower grain storage room of 3 representatives, the upper grain cylinder of 4 representative drying, 5 representatives are driven Motivation structure, 6 represent mozzle, and 7 represent discharge nozzle, and 8 represent blast cap, and 9 represent shutter board, and 10 represent inner core, and 11 represent return air cylinder, 12 represent lower screen plate, and 13 represent upper screen plate, and 14 represent lower location-plate, and 15 represent flabellum plate, and 16 represent locating ring, and 17 represent Location hole, 18 represent lower grain controller.

Specific embodiment

This utility model is elaborated with specific embodiment below in conjunction with the accompanying drawings：

Specific embodiment, as depicted in figs. 1 and 2, aspiration circulating grain dryer, including thermal source 1 and baking oven, thermal source 1 For air stove, the hot-blast outlet of thermal source 1 is connected with the hot wind inlet of baking oven, and baking oven includes 4 and of grain cylinder in separation chamber 2, drying Lower end for funnel-shaped structure lower grain storage room 3, charging aperture is provided with lower grain storage room 3, be provided with upper separation chamber 2 discharging opening and Air outlet, is additionally provided with the impurity discharging port for discharging impurity in upper separation chamber 2, some nuisances of grain are arranged during drying and dewatering Go out, make the quality of grain keep genuine.The shutter board 9 of tubular, shutter board 9 and lower grain storage are set up inside funnel-shaped structure Room 3 is fixedly connected and the cavity between shutter board 9 and funnel-shaped structure is sub-material chamber, is fixed with level and sets on 9 outer wall of shutter board The locating rod put, locating rod are fixedly connected to form location structure with lower 3 inwall of grain storage room, and simple structure is convenient to disassembly, save Shi Shengli.9 volume of shutter board is 1 with the ratio of the volume of lower 3 funnel-shaped structure of grain storage room：4, make inside funnel-shaped structure, to reserve four / tri- space storage hot blast, realizes the normal circulation of grain and hot blast, reaches the purpose of drying and dewatering.In shutter board 9 Hollow structure forms the air-inlet cavity connected with 1 hot-blast outlet of thermal source, and in drying, grain cylinder 4 reaches square under shutter board 9 through air-inlet cavity Into charging air inlet and upper end is located in upper separation chamber 2, grain is both dispersed in into sub-material intracavity, and grain is deposited directly on Lou Bucket shape inside configuration is compared, due to the volume in sub-material chamber it is less, it is possible to the occurrence of effectively preventing putty, and can be with Hot blast is made smoothly to enter air intake intracavity.The blast cap 8 being coaxially disposed, blast cap 8 and the upper grain cylinder of drying are provided with drying above grain cylinder 4 4 are fixedly connected, and blast cap 8 includes inverted conical structure and is fixed on the brim of a hat of conical structure upper surface, blast cap 8 and drying Passage is left between upper grain cylinder 4 and forms discharge exhaust outlet, grain cylinder 4 is by the blower fan shape being arranged at the top of upper separation chamber 2 in drying Into drying channel.Blast cap 8 is using reciprocity refraction principle so that after cereal hoisting to the refraction of blast cap 8, enter in the presence of blower fan Branch program, corn, hot blast, three roads of impurity point are taken their own roads, and prevent hot blast and grain to be back to and dry in upper grain cylinder 4, reach To the purpose of drying and dewatering.On blast cap 8, the central angle of conical structure is less than or equal to 90 ° more than 0 °, preferably 90 °, now may be used Dried in upper grain cylinder 4 with effectively preventing grain from returning to.The brim of a hat is slab construction or truncated cone-shaped tube structure, flat board knot The lower surface of structure is fixedly connected with the upper surface of conical structure, the smaller diameter end of truncated cone-shaped tube structure it is above and with circle The upper surface of pyramidal structure is fixedly connected to form the cap structure that longitudinal section is M shapes.When the brim of a hat is truncated cone-shaped tube structure, cap Eaves is provided with semicircular arc pressuring plate with the junction of conical structure, and transition is more smoothed, and connects more solid and reliable, Profile is more attractive in appearance.

Used as to further improvement of the utility model, the discharge outlet in upper separation chamber 2 sets up mozzle 6 and discharge nozzle 7, mozzle 6 is hinged with upper separation chamber 2 and 6 upper end of mozzle is connected with the discharging opening of upper separation chamber 2 and lower end is connected with discharge nozzle 7 It is logical to form tapping channel, or 6 upper end of mozzle connected with the discharging opening of upper separation chamber 2 and in lower end and lower grain storage room 3 Sub-material chamber connects to form secondary drying passage.When the moisture contained by grain in upper separation chamber 2 reaches requirement, by mozzle 6 with Discharge nozzle 7 is connected, and is directly discharged grain, when the moisture contained by grain in upper separation chamber 2 is not up to required, by mozzle 6 Connect with lower grain storage room 3, grain is sent back to again in lower grain storage room 3 and dried again, so circulate, you can make all grains Requirement to moisture is reached all.Discharge nozzle 7 is obliquely installed and above near one end of mozzle 6, can improve under grain The speed for falling, prevents accumulation situation.Discharge nozzle 7 is obliquely installed and above near one end of mozzle 6, can improve The speed that grain falls, prevents accumulation situation.

It is at least three as the quantity to further improvement of the utility model, shutter board 9, all shutter boards 9 are along perpendicular Nogata is to arrangement and is all coaxially disposed with lower grain storage room 3, can prevent that blocking occurs as single sub-material chamber volume is too big Situation.It is corresponding with multiple shutter boards 9 just to have multilamellar sub-material chamber, so as to there is multiple blanking ports, due to the one of 9 periphery of shutter board Circle can blanking, even if so have on a certain layer sub-material chamber somewhere appearance blocking, other places will not also be subject to shadow Ring, and the ratio compared with blanking port cumulative volume of volume shared by plugging block is minimum almost zero, so not interfering with work Be normally carried out.The lower surface of each shutter board 9 is all located at the lower section of 9 upper surface of shutter board below, and adjacent shutter board 9 is direct Suit, it is convenient and swift during installation, it is time saving and energy saving, and material can be prevented effectively from into inside shutter board 9.All sub-material chambers according to Secondary connection, the superiors' sub-material chamber are connected with the charging aperture on lower grain storage room 3, and orlop sub-material chamber is connected with air-inlet cavity so that grain Food can only be slid along sub-material chamber downwards, the occurrence of can effectively prevent grain from piling up.

It is provided with as top to further improvement of the utility model, is set up above the shutter board 9 in lower grain storage room 3 The inner core 10 covered in taper, inner core 10 are coaxially disposed and are fixedly connected with lower grain storage room 3, between inner core 10 and lower grain storage room 3 Cavity is blanking chamber, and blanking chamber is connected with sub-material chamber, using inner core 10 so that being fallen back in lower grain storage room 3 by upper separation chamber 2 Grain is directly entered sub-material intracavity, eliminates the process of artificial sub-material, time saving and energy saving, saves human cost, improves work Efficiency.

As to further improvement of the utility model, the air intake and outlet air end of blower fan all with connect inside upper separation chamber 2 It is logical, return air cylinder 11 is set up, the import of return air cylinder 11 is connected with the air outlet of upper separation chamber 2, outlet and the inner core 10 of return air cylinder 11 Internal connection and exit are provided with plate shape windward, and into check valve, inner core 10 and lower grain storage room 3 are all mesh plates, on mesh plate , used as air outlet, in drying, the middle part of grain cylinder 4 is through inside inner core 10 for mesh.Lead to the hot blast risen to inside separation chamber 2 Cross return air cylinder 11 to again return in inner core 10, post bake is carried out to the grain in drying above grain cylinder 4, the hot blast after cooling passes through Mesh on inner core 10 and lower grain storage room 3 is discharged, and can so make full use of the heat of hot blast, reduces the loss of heat, is saved Cost.

As to further improvement of the utility model, blower fan include the drive mechanism 5, upper location-plate being coaxially disposed and under Location-plate 14, upper location-plate are located at below drive mechanism 5 and are fixedly connected with the output shaft of drive mechanism 5, upper location-plate lower end The one group flabellum plate 15 that be vertically arranged be fixed with face along the circumferential direction, the upper surface of the lower end of flabellum plate 15 and lower location-plate 14 It is fixedly connected, upper location-plate periphery is fixed with locating ring 16, on locating ring 16, along the circumferential direction offers one group of location hole 17, wind Machine is fixedly connected to form closed structure with upper separation chamber 2 by the location hole 17 on locating ring 16 and makes lower location-plate 14 and flabellum plate 15 are all located inside separation chamber 2 and leave air-out chamber between 2 inwall of lower location-plate 14 and upper separation chamber.So that hot blast cannot be arranged Go out and move downwardly in return air cylinder 11, while so that hot blast cannot be contacted with drive mechanism, extending making for drive mechanism Use the life-span.

Air outlet to further improvement of the utility model, thermal source 1 is provided with lower screen plate 12, grain is prevented The conveying of hot blast is affected in the air outlet of thermal source 1；Screen plate 13 is provided with below 2 inner blower of upper separation chamber, is prevented Only grain enters blower interior and affects the normal use of blower fan, is provided with lower 3 bottom of grain storage room and is made up of inner core and outer tube Lower grain controller 18, the cavity between inner core and outer tube is the excessively stream chamber that sealed bottom, upper end are connected with sub-material chamber, in drying 4 lower end of grain cylinder is located inside inner core and along the circumferential direction offers one group of charging aperture on the wall of side, corresponding with charging aperture on inner core Position also offer via, make inner core become lower grain speed to be rotatably assorted between lower grain controller 18 and the upper grain cylinder of drying 4 Adjustment structure, is fixed with rotating handles on outer drum outer wall, can adjust via with the upper grain of drying by grain controller 18 under rotation The overlapping area of 4 enterprising material mouths of cylinder, so as to control lower grain speed, meets the demand of actual production.

This utility model is in the specific implementation：The hot blast that thermal source 1 is produced is entered in lower grain storage room 3, and grain is admitted to lower storage The sub-material intracavity of grain room 3, under fan action, the hot blast of the grain and air intake intracavity of sub-material intracavity enters the upper grain cylinder of drying simultaneously In 4, grain and hot blast carry out direct and sufficient contact in uphill process, and grain heat-drying is lowered the temperature by hot blast, after cooling Hot blast and the grain after first drying are entered inside separation chamber 2 in the presence of blast cap 8, and the hot blast after cooling is passed through back Air duct 11 carries out secondary heat exchange with the grain in drying above grain cylinder 4 into inside inner core 10, is then discharged.At the same time, examine The moisture of grain in Ce Shang separation chambers 2, if up to standard, mozzle 6 is connected with discharge nozzle 7, is directly discharged grain, Lowered the temperature directly to grain using natural wind during discharge, if not up to standard, mozzle 6 is connected with lower grain storage room 3, by grain again Send back in lower grain storage room 3, be directly over blanking chamber into the grain in lower grain storage room 3 in the presence of 10 top cover of inner core Into sub-material intracavity, then sliding gradually downward carries out secondary drying, so circulates, until can just pass through after moisture is up to standard Discharge nozzle 7 is discharged, and simple structure is easy to operate, good drying effect, and uniformity is good, can effectively prevent grain in storage, fortune There is rotten situation of going mouldy and germinate in the links such as defeated, processing.

Some test datas are given below：

As batch tower crop drier is the product that manufactures and designs for China's Rice Production, so can not be used for Other grains are dried, and through test, when Oryza sativa L. is dried, production cost of the present utility model is 65 yuan/ton, the tower paddy of batch The production cost of thing dehydrator is 120 yuan/ton, greatlys save production cost.

Continuous type drying tower foodstuff drying device grain is mainly Semen Maydiss, and other grains can not be dried, through test, in drying During Semen Maydiss, production cost of the present utility model is 40 yuan/ton, the production cost of continuous type drying tower foodstuff drying device is 110 yuan/ Ton, greatlys save production cost, in addition, the Semen Maydiss form gelatinizing of continuous type drying tower foodstuff drying device drying, the product for baking Product can only make feedstuff and can not eat, and it is also very low to go out starch rate, and this utility model can according to the granular size of grain, weight, Adaptive temperature, gelatinization degree, receipts bud rate, percent cracked rice, flour extraction etc. are adjusted correspondingly, so as to according to drying grain variety It is different to perform different stoving processes, the form of required product can be obtained, the quality of grain is improve.

Production cost of this utility model when millet is dried is 50 yuan/ton.

In sum, this utility model substantially increases the efficiency of grain heat-drying, and grain covers all grains to be included planting Including son, a tractor serves several purposes is really realized, saved drying expense and labour cost, drying time reduces by more than 50%, medium Material is saved, and is made the cost of investment of equipment reduce by more than 20%, is greatly reduced production cost, and alleviating peasant makes to drying machine Investment, without media implementation, drying damaged impurity is greatly reduced, can according to the granular size of grain, weight, adaptation Temperature, gelatinization degree, receipts bud rate, percent cracked rice, flour extraction etc. are carried out to parameters such as temperature, wind speed, efficiency, grain flows accordingly Adjustment, so as to perform different stoving processes according to the difference of drying grain variety, improves the quality of grain.

Claims (10)

1. aspiration circulating grain dryer, including thermal source (1) and baking oven, hot-blast outlet and the hot blast of baking oven of thermal source (1) enter Mouth connection, it is characterised in that：Described baking oven includes separation chamber (2), grain cylinder (4) and lower end are funnel-shaped structure in drying Lower grain storage room (3), is provided with charging aperture, is provided with discharging opening and air outlet on upper separation chamber (2) on lower grain storage room (3), in leakage Bucket shape inside configuration sets up the shutter board (9) of tubular, and shutter board (9) is fixedly connected with lower grain storage room (3) and shutter board (9) and leakage Cavity between bucket shape structure is sub-material chamber, and the hollow structure of shutter board (9) forms the air intake connected with thermal source (1) hot-blast outlet Chamber, in drying, grain cylinder (4) reaches shutter board (9) charging air inlet formed below through air-inlet cavity and upper end is located at upper separation chamber (2), in, in drying, above grain cylinder (4), be provided with the blast cap (8) being coaxially disposed, blast cap (8) including inverted conical structure with The brim of a hat of conical structure upper surface is fixed on, and passage is left between blast cap (8) and upper grain cylinder (4) of drying and is formed discharge air draft Mouthful, in drying, grain cylinder (4) forms drying channel by the blower fan being arranged at the top of upper separation chamber (2).

2. aspiration circulating grain dryer according to claim 1, it is characterised in that：In the discharging of upper separation chamber (2) Set up mozzle (6) and discharge nozzle (7) at mouthful, mozzle (6) be hinged with upper separation chamber (2) make mozzle (6) upper end with upper point From room (2) discharging opening connection and lower end connect to form tapping channel with discharge nozzle (7), or mozzle (6) upper end with it is upper The discharging opening of separation chamber (2) is connected and lower end connects to form secondary drying passage with the sub-material chamber in lower grain storage room (3).

3. aspiration circulating grain dryer according to claim 2, it is characterised in that：Described discharge nozzle (7) is inclined Arrange and above near one end of mozzle (6).

4. aspiration circulating grain dryer according to claim 1, it is characterised in that：Circular cone on described blast cap (8) The central angle of shape structure is less than or equal to 90 ° more than 0 °.

5. aspiration circulating grain dryer according to claim 1, it is characterised in that：The described the brim of a hat is slab construction Or truncated cone-shaped tube structure, the lower surface of slab construction is fixedly connected with the upper surface of conical structure, truncated cone-shaped cylinder The smaller diameter end of structure is above and upper surface of with conical structure is fixedly connected to form the blast cap that longitudinal section is M shapes and ties Structure.

6. aspiration circulating grain dryer according to claim 1, it is characterised in that：The quantity of the shutter board (9) For at least three, all shutter boards (9) are vertically arranged and are all coaxially disposed with lower grain storage room (3), each shutter board (9) Lower surface be all located at the lower section of shutter board (9) upper surface below, all sub-material chambers are sequentially communicated, and the superiors' sub-material chamber is with Charging aperture connection on grain storage room (3), orlop sub-material chamber is connected with air-inlet cavity.

7. aspiration circulating grain dryer according to claim 1, it is characterised in that：In lower grain storage room (3) hundred Top is set up above impeller (9) and is provided with the inner core (10) covered in taper, inner core (10) is coaxially disposed with lower grain storage room (3) and solid Fixed to connect, the cavity between inner core (10) and lower grain storage room (3) is blanking chamber, and blanking chamber is connected with sub-material chamber.

8. aspiration circulating grain dryer according to claim 7, it is characterised in that：The air intake of the blower fan and go out Wind end is all connected with inside upper separation chamber (2), sets up return air cylinder (11), the import of return air cylinder (11) and going out for upper separation chamber (2) Air port connects, and the outlet of return air cylinder (11) is connected with inner core (10) inside and to be provided with plate shape windward into check valve, interior in exit Air outlet is offered all on cylinder (10) and lower grain storage room (3), in drying, the middle part of grain cylinder (4) is internal through inner core (10).

9. aspiration circulating grain dryer according to claim 8, it is characterised in that：Described blower fan includes coaxially setting Drive mechanism (5), upper location-plate and the lower location-plate (14) put, upper location-plate are located at below drive mechanism (5) and and driving machine The output shaft of structure (5) is fixedly connected, and one group of flabellum plate being vertically arranged along the circumferential direction is fixed with upper location-plate lower surface (15), the lower end of flabellum plate (15) is fixedly connected with the upper surface of lower location-plate (14), and upper location-plate periphery is fixed with locating ring (16) one group of location hole (17) is along the circumferential direction offered on locating ring (16), blower fan is by the location hole on locating ring (16) (17) closed structure is fixedly connected to form with upper separation chamber (2) makes lower location-plate (14) and flabellum plate (15) be all located at upper separation chamber (2) air-out chamber is left between inside and lower location-plate (14) and upper separation chamber (2) inwall.

10. aspiration circulating grain dryer according to claim 1, it is characterised in that：The air outlet of the thermal source (1) Place is provided with lower screen plate (12), is provided with screen plate (13), in lower grain storage room (3) below upper separation chamber (2) inner blower Bottom is provided with the lower grain controller (18) being made up of inner core and outer tube, the cavity between inner core and outer tube be sealed bottom, on The excessively stream chamber that end is connected with sub-material chamber, in drying, grain cylinder (4) lower end is located inside inner core and along the circumferential direction offers on the wall of side One group of charging aperture, on inner core, the position corresponding with charging aperture also offers via, lower grain controller (18) and the upper grain cylinder of drying (4) make inner core become lower grain speed adjustment structure to be rotatably assorted between, on outer drum outer wall, be fixed with rotating handles.