CN106376304A - Ventilation and heat exchange system capable of eliminating disease for granary - Google Patents
Ventilation and heat exchange system capable of eliminating disease for granary Download PDFInfo
- Publication number
- CN106376304A CN106376304A CN201611058735.5A CN201611058735A CN106376304A CN 106376304 A CN106376304 A CN 106376304A CN 201611058735 A CN201611058735 A CN 201611058735A CN 106376304 A CN106376304 A CN 106376304A
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- China
- Prior art keywords
- ventilation
- air
- pipeline
- heat exchange
- exchange system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
Abstract
The invention discloses a ventilation and heat exchange system capable of eliminating a disease for a granary. The ventilation and heat exchange system comprises an exhaust fan, a suction ventilator and a ventilation pipeline, wherein the ventilation pipeline comprises an air exhaust pipeline, an air suction pipeline and supporting rods used for connecting and supporting pipe bodies; the air exhaust pipeline and the air suction pipeline separately rise in helical shapes; the top of the air exhaust pipeline is connected with the top of the air suction pipeline; the air exhaust pipeline and the air suction pipeline are combined to form the double helical type ventilation pipeline; when looking from top to bottom, the air exhaust pipeline and the air suction pipeline are located on the same enclosure ring; the pipe body of the ventilation pipeline is also provided with multiple array type meshes running through the pipe body. The ventilation and heat exchange system capable of eliminating the disease for the granary has the advantages that a gas for eliminating the disease can be also introduced into a grain stored in an inner layer through the array type meshes while the ventilation and the heat exchange are realized.
Description
Technical field
The invention belongs to technical field of heat exchange is and in particular to a kind of silo that can eliminate disease ventilation heat exchange system
System.
Background technology
It is traditionally used at present storing the logistics silo of granular substance grain or industrial large-sized silo, for example, mould grain for storage
The silo of the granular substance grains such as particle, diet particle, paddy rice, rice, soybean, corn, adopts monolithic design mostly, can only be simultaneously
Store a kind of thing grain, single function.Also there is fraction of stream silo to adopt catamaran design, but but adopt two sets of single unloading dresses
Put unloading, lead to take up an area larger, relatively costly shortcoming.In addition, at present the level of IT application of traditional silo relatively low it is impossible to grain
In storehouse, grain storage especially deep layer grain storage is effectively and timely detected and is monitored, and leads to evils to find slow, regulation is difficult.Additionally, passing
The silo of system, using top layer heat exchange cooling more than its ventilating system, when grain storage is relatively deep, area is wider it is difficult to enter to internal layer grain storage
Row fast cooling cools down.
Content of the invention
It is an object of the invention to provide a kind of silo that can eliminate disease ventilation heat exchange system.
The technical scheme realizing the object of the invention is：A kind of silo that can eliminate disease ventilation heat exchange system, including
Air exhauster, induced-draught fan and ventilation shaft；Ventilation shaft includes air draft pipe, air-suction duct and is used for connecting and support propping up of body
Strut；Air draft pipe and air-suction duct each rise in the shape of a spiral, and the top of air draft pipe is connected with the top of air-suction duct, and two
Person's combination forms double-screw type ventilation shaft；Viewed from above, air draft pipe and air-suction duct are in same enclosure；Ventilation duct
Multiple array mesh running through body are additionally provided with the body in road.
In such scheme, air exhauster connects with the bottom of air draft pipe, and induced-draught fan connects with the bottom of air-suction duct.
In such scheme, each support bar is fixedly linked by welding manner and ventilation shaft body.
It is an advantage of the invention that additionally it is possible to be passed through to internal layer grain storage by array mesh while realizing ventilation heat exchange
Eliminate the gas of disease.
Brief description
Fig. 1 is a kind of perspective view of the present invention；
Fig. 2 is a kind of perspective view being in charge of body in the middle part of ventilation heat exchange system shown in Fig. 1；
Fig. 3 is a kind of a kind of structural representation of the silo made using ventilation heat exchange system shown in Fig. 1；
Fig. 4 is a kind of perspective view of discharge mechanism in silo shown in Fig. 3；
Fig. 5 is a kind of perspective view when another angle is observed for the discharge mechanism shown in Fig. 4；
Fig. 6 is a kind of explosive view of discharge mechanism shown in Fig. 4；
Fig. 7 is a kind of perspective view of linked switching device in discharge mechanism shown in Fig. 4；
Fig. 8 is a kind of perspective view when another angle is observed for the linked switching device shown in Fig. 7；
Fig. 9 is a kind of perspective view of linkage gear assembly in linked switching device shown in Fig. 7；
Figure 10 is a kind of perspective view when another angle is observed for linkage gear assembly shown in Fig. 9；
Figure 11 is a kind of side view of linkage gear assembly shown in Fig. 9；
Figure 12 is the line A-A sectional view of linkage gear assembly shown in Figure 11；
Figure 13 is a kind of perspective view of information acquiring instrument in silo shown in Fig. 1；
Figure 14 is a kind of top view of information acquiring instrument shown in Figure 13；
Figure 15 is a kind of explosive view of information acquiring instrument shown in Figure 13；
Figure 16 is a kind of explosive view that information acquiring instrument shown in Figure 13 decomposes further；
Figure 17 is a kind of sectional view of information acquiring instrument shown in Figure 13；
Figure 18 is a kind of sectional view of barrel shell in information acquiring instrument shown in Figure 13；
Figure 19 is to advance in information acquiring instrument shown in Figure 13 to roll a kind of sectional view of pipe.
Specific embodiment
（Embodiment 1）
Fig. 1 and Fig. 2 shows a kind of specific embodiment of the present invention.
The present embodiment is a kind of ventilation heat exchange system for silo, and as shown in Fig. 1 and Fig. 2, this ventilation heat exchange system 7 is wrapped
Include air exhauster 71, induced-draught fan 72 and ventilation shaft 73；Ventilation shaft includes air draft pipe 731, air-suction duct 732 and is used for connecting
And support the support bar 733 of body；Air draft pipe and air-suction duct each rise in the shape of a spiral, the top of air draft pipe and air draught
The top of pipeline is connected, and both combine formation double-screw type ventilation shaft.
Viewed from above, air draft pipe and air-suction duct are in same enclosure.
Air exhauster connects with the bottom of air draft pipe, and induced-draught fan connects with the bottom of air-suction duct.
During work, air exhauster is blown, the air draught of induced-draught fan one side, and this air supply mode can make whole ventilation shaft
Wind-force obtain more quickly circulating, thus improving heat exchanging efficiency.
In the present embodiment, each support bar is fixedly linked by welding manner and ventilation shaft body.
In the present embodiment, the body of ventilation shaft is additionally provided with multiple array mesh 74 running through body, array net
Hole is generally distributed on air draft pipe and the body of air-suction duct；This structure makes ventilation shaft can not only realize heat friendship
Change, also the gas in part body can be discharged in grain storage by array mesh, greatly reduce temperature fall time, lifting cooling
Efficiency.Meanwhile, if be passed through in ventilation shaft is activity suppression gas, such as carbon dioxide or nitrogen, or add
The gas of certain drug ingedient, disease prevention and cure carried out to grain storage and the killing insect pest of the property of can also be for.
The present embodiment has following positive technique effect：（1）Due to having the inner ring airduct of the deep enough internal layer grain storage of energy, can
To be effectively aerated to internal layer grain storage lowering the temperature, quick cooling.（2）Multiple run through pipe due to being additionally provided with the body of ventilation shaft
The array mesh of body, targetedly can carry out disease prevention and cure to grain storage and kill insect pest.
（Application examples 1）
Fig. 3 to Figure 19 shows a kind of concrete application mode of the present invention.
Should use-case be a kind of silo that can eliminate disease made using above-described embodiment 1, see Fig. 3 to Figure 19 institute
Show, including binary silo 1 and the discharge mechanism 2 being arranged on below binary silo.
Binary silo 1 has the first silo 11 being arranged side by side and the second silo 12, and the bottom of the first silo is tapered, its
There is at bottom centre the first grain outlet；The bottom of the second silo is also tapered, has the second grain outlet at its bottom centre.This
In embodiment, the bottom of binary silo is provided with four daggers 13, and binary silo is stood on the ground by this four daggers.In tool
In body practice, also shouldn't dagger, but binary silo is directly anchored on body of wall or on carrier, such as by the present embodiment
For united reaper.
As shown in Figure 3, it is respectively provided with the ventilation heat exchange system described in an above-described embodiment 1 in the first silo and the second silo
7 and an information acquiring instrument 6
Discharge mechanism 2 sets the first unloading passage and the casing 21 of the second unloading passage in including, and is arranged in the first unloading passage
The first auger 24, be arranged on the second auger 25 in the second unloading passage, and for driving the first auger and the second auger
The driving means 3 rotating.
The top of casing is provided with the first grain-entering mouth 211 and the second grain-entering mouth 212, and the bottom of casing is provided with the first grain outlet
213 and second grain outlet 214；First grain-entering mouth leads to as the first unloading as the import of the first unloading passage, the first grain outlet
The outlet in road., as the import of the second unloading passage, the second grain outlet is as the outlet of the second unloading passage for second grain-entering mouth.
First rotating shaft 241 that first auger 24 includes being rotatably arranged on casing and be fixedly installed in first rotating shaft the
One spiral plate 242, the first spiral plate is located in the first unloading passage；Second auger includes be rotatably arranged on casing second turn
Axle 251 and the secondary spiral lamina 252 being fixedly installed in the second rotating shaft, secondary spiral lamina is located in the second unloading passage.
In the present embodiment, casing is formed by base 217 and capping 218 combination, is provided with dividing plate 219, dividing plate is the bottom of in base
Seat inner space is separated into two big cavitys of grade；First rotating shaft and the setting of the second shaft parallel, the first spiral plate and the second spiral shell
Rotating plate is respectively disposed in a corresponding cavity, and the hand of spiral of the first spiral plate and the hand of spiral of secondary spiral lamina are contrary.
One end of the first rotating shaft 241 of the first auger is stretched out outside casing, and stretches out first rotating shaft 241 end outside casing
End is fixed with the first driven gear 243；One end of second rotating shaft 251 of the second auger is stretched out outside casing, and stretches out casing
Second rotating shaft 251 end in outside is fixed with the second driven gear 253.
First auger and the second auger elapse the grain in respective cavity by rotating push mode.
Driving means 3 include motor 31 and the linked switching device 4 being provided with driving wheel 311.
As shown in Fig. 7 to Figure 12, linked switching device 4 includes support body 41, driving wheel group 32, is fixedly installed on support body
Guide plate and linkage gear assembly 44；Guide plate includes outer guide plate 42 and interior guide plate 43, outer guide plate 42 and interior guide plate
It is equipped with a pilot hole 45 on 43；Support body is fixedly installed on cabinet exterior.
Driving wheel group 32 includes power transmission shaft 321 and is fixedly installed on driving pulley 322 and driving cog on power transmission shaft
Wheel 323, travelling gear is located at the inner side of driving pulley, namely is located at driving pulley close to the side of casing.Transmission axle position
In the middle of described first driven gear and the second driven gear, motor is fixedly installed relative to ground, and driving wheel is located at
The underface of driving pulley, driving wheel drives driven transmission wheel by belt 312.Travelling gear and the first driven gear and
All leave gap between two driven gears, namely travelling gear does not directly drive the first driven gear or the second driven gear；
First driven gear and the second driven gear are centrosymmetric setting with respect to power transmission shaft.
Linkage gear assembly 44 includes linkage gear 441 and the guiding reciprocatingly sliding for spacing linkage gear along pilot hole
Part 448；Guide is located in pilot hole, and when guide slides into one end of pilot hole, travelling gear passes through linkage gear band
Dynamic first driven gear rotates, and when guide slides into the other end of pilot hole, travelling gear passes through linkage gear drive the
Two driven gears rotate.
In the present embodiment, axostylus axostyle 442 that linkage gear assembly also includes being fixedly installed in linkage gear centre bore, sheathed
443, two, two rolling bearings on axostylus axostyle two ends are used for housing the bearing block 444 of rolling bearing, are used for rolling bearing
End cap 445 in bearing block for the closure；
Each end cap is fixedly installed on the outboard end of bearing block by bolt 446, and each end cap is crimped on the outer ring of rolling bearing simultaneously
On；The inner ring of each rolling bearing is sheathed to be fixed on one end of axostylus axostyle；
For lift-off seal, prevent dust from entering in rolling bearing, arrange also between each end cap and a corresponding bearing block
Gasket seal 447.
In the present embodiment, pilot hole is a circular hole, and this circular hole and travelling gear are arranged concentrically；The outside of each end cap
End is provided with the guide ledges of evagination as guide 448, and each guide ledges are located in a corresponding pilot hole, and can be along pilot hole
Reciprocatingly slide.
In the present embodiment, the upper top surface 4481 of each guide and bottom surface 4482 are the arc surfaces being arranged concentrically；Each guiding
The upper top surface 4481 of part and the upper inwall adaptation of pilot hole, the lower inwall adaptation of the bottom surface of each guide and pilot hole, this
Structure allows each guide to reciprocatingly slide in a corresponding pilot hole, but can not rotate, and linkage gear is then rolling
Can rotate under the support of bearing.
In the present embodiment, drive axis are arranged on outer guide plate and interior guide plate, and linkage gear and travelling gear are nibbled
Properly join；Because pilot hole and travelling gear are arranged concentrically, so linkage gear assembly can be driven when travelling gear rotates overall
Move along pilot hole setting direction, until guide is connected on one end of pilot hole.
As shown in Figure 7, now motor rotates forward, and guide is connected on the left end of pilot hole, linkage gear, biography
Moving gear and the first driven gear engagement adaptation, namely travelling gear is now by linkage gear drive the first driven tooth rotation
Dynamic, namely drive the first auger to rotate；When motor rotates backward, travelling gear rotates backward therewith, and then drives connection
Moving gear and guide move right along pilot hole, until guide is connected on the right-hand member of pilot hole, now linkage gear,
Travelling gear and the second driven gear engagement adaptation, namely travelling gear now can be by linkage gear drive the second driven gear
Rotate, namely drive the second auger to rotate.During linkage gear assembly moves back and forth along pilot hole, travelling gear is all the time
Linkage gear is driven to rotate.
As shown in Figure 13 to Figure 19, each information acquiring instrument 6 include barrel shell 61, the master gear 62 being rotatably arranged in barrel shell,
Four travelings being rotatably arranged on barrel shell are rolled pipes 63, are fixedly installed on each pinion 64 advanced in rolling pipe outer wall, are used for carrying
The driving motor 65 that dynamic master gear rotates；Four pinions are uniformly arranged on master gear outer circumferential side, setting in a center of symmetry；Main tooth
When wheel rotates, drive each pinion synchronous axial system.
In the present embodiment, the periphery wall of master gear is provided with driving cog 621, and internal perisporium is provided with driven tooth 622；Former dynamic electricity
The quantity of machine 65 is two, and each driving motor is provided with the output gear 651 with output gear 652；Output gear and master gear from
Dynamic tooth engagement adaptation；The driving cog of master gear and pinion engagement adaptation.
It is fixed with spiral power plate 631, spiral power plate is with rolling pipe turn of advancing on the lumen wall of traveling rolling pipe
When dynamic, moved ahead by the thing grain acquisition thrust that spiral is stirred in rolling pipe of advancing or retreat.In the present embodiment, spiral power plate
Center enclose that formation one is circular to cross grain hole 639, when rolling pipe of advancing is advanced, grain storage mainly from this circle grain hole and spiral
Release backward in the gap between screw of power plate, this structure can be entered grain in rolling pipe of advancing in time and be advanced with smooth, in addition by
In this circle cross grain hole presence, to advance rolling pipe in the larger mobile space of grain storage, prevent grain storage because overcrowding and by spiral shell
Rotation power plate blends.
Barrel shell 61 includes main cylinder 611 and four secondary cylinders 612, and four secondary cylinders become center around the central axis of main cylinder
It is symmetrical arranged；The central axis of main cylinder is also the center of rotation axis of described master gear, the center of rotation axis of each pair cylinder
Parallel with the center of rotation axis of master gear.
Each two ends advancing rolling pipe are equipped with the Taper Pipe portion 632 of reduced diameter as drag reduction portion, advance for reducing
Resistance.
The two ends of barrel shell are respectively fixed with a coniform antidrag cap 66, and each antidrag cap is provided with a temperature sensor 67
With a humidity sensor 68, the induction end of each temperature sensor and humidity sensor is exposed independent from antidrag cap.
It is arranged with the first rolling bearing 633 and the second rolling bearing 634 on the outer wall of each rolling pipe of advancing, each rolling pipe of advancing
Outer wall is provided with first step wall 635 and second step wall 636；
One side of barrel shell is provided with four clutch shaft bearing storage tanks 613, and this four clutch shaft bearing storage tanks are located at this end of barrel shell
On inwall；Each first rolling bearing is embedded in a corresponding clutch shaft bearing storage tank, and the inner ring of each first rolling bearing is sheathed
It is fixed on one end of corresponding one rolling pipe of advancing, and the first step wall of rolling pipe of advancing is along the central axial direction pressure of this rolling pipe
It is connected on the inner ring of corresponding first rolling bearing；
Another side of barrel shell is provided with four second bearing storage tanks 614, and this four second bearing storage tanks are located at and expose to cylinder
This end of shell；Each rolling pipe of advancing is provided with male threaded joint 637；The internal thread crimp that one is screwed onto on male threaded joint
638, it is crimped on the outer ring of a corresponding second bearing, and roll the central axial direction of pipe this second bearing along this traveling
Inner ring is crimped on this traveling and rolls on the second step wall of pipe；This internal thread crimp blocks a corresponding second bearing simultaneously to be held
Put the opening of groove.
It is fixed with installing plate 615, master gear is rotatably arranged on installing plate, the motor body of each driving motor in barrel shell
Also it is fixedly installed on this installing plate.
Information acquiring instrument in the present embodiment, when using, is powered to driving motor by built-in power, driving motor band
Dynamic master gear rotates, and then synchronously drives four rolling pipes of advancing to rotate by each pinion, thus passing through to push away in logistics silo
Dynamic grain storage and advance or retreat.
Because each antidrag cap is provided with temperature sensor and humidity sensor, the information acquiring instrument in the present embodiment is being advanced
In, the temperature and humidity of drill-through grain layer being given, thus obtaining the physical message of the grain storage of different depth, and can pass through interior
The radio-cell being placed in antidrag cap or barrel shell is transferred to user.
It is also possible to be powered and transmission data to the information acquiring instrument in the present embodiment by cable in concrete practice, tool
Body is that cable is passed through behind the tip of an antidrag cap, is connected with the wiring board in antidrag cap or barrel shell.
The present embodiment also can be arranged in each coniform antidrag cap has lamplit camera, each coniform antidrag cap
Made using transparent material grain so that camera can photograph the in good time state of grain storage, for example observe go mouldy, insect bite etc.
Bad phenomenon, prevents and treats to it in time.
The course of work of the present embodiment is as follows：Grain storage in first silo enters the first unloading passage through the first grain-entering mouth
In, during the first auger rotation, the grain storage in itself place cavity is elapsed to the first grain outlet；Grain storage in second silo is through
Two grain-entering mouths enter in the second unloading passage, during the second auger rotation, the grain storage in itself place cavity are elapsed and put out cereal to second
Mouthful.
The present embodiment has advantages below：（1）Linked switching device relatively reasonable in structure, two augers only use same drive
Dynamic Motor drive, compares with traditional product, saves a motor, also reduces entirety and takes up room, is conducive to small-sized
Change, especially meet carrier and install and use demand.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, also may be used on the basis of the above description
To make other changes in different forms.There is no need to be exhaustive to all of embodiment.And these
Belong to the obvious change that the connotation of the present invention extended out or change and still fall within protection scope of the present invention.
Claims (3)
1. a kind of silo that can eliminate disease with ventilation heat exchange system it is characterised in that：Including air exhauster, induced-draught fan and ventilation
Pipeline；Ventilation shaft includes air draft pipe, air-suction duct and the support bar for connecting and supporting body；Air draft pipe and air draught
Pipeline each rises in the shape of a spiral, and the top of air draft pipe is connected with the top of air-suction duct, and both combine formation double-screw type
Ventilation shaft；Viewed from above, air draft pipe and air-suction duct are in same enclosure；It is additionally provided with many on the body of ventilation shaft
The individual array mesh running through body.
2. the silo that can eliminate disease according to claim 1 with ventilation heat exchange system it is characterised in that：Air exhauster and
The bottom connection of air draft pipe, induced-draught fan connects with the bottom of air-suction duct.
3. the silo that can eliminate disease according to claim 1 with ventilation heat exchange system it is characterised in that：Each support bar
It is fixedly linked by welding manner and ventilation shaft body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058735.5A CN106376304A (en) | 2016-11-27 | 2016-11-27 | Ventilation and heat exchange system capable of eliminating disease for granary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058735.5A CN106376304A (en) | 2016-11-27 | 2016-11-27 | Ventilation and heat exchange system capable of eliminating disease for granary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106376304A true CN106376304A (en) | 2017-02-08 |
Family
ID=57959279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611058735.5A Pending CN106376304A (en) | 2016-11-27 | 2016-11-27 | Ventilation and heat exchange system capable of eliminating disease for granary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106376304A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280948A (en) * | 2007-04-02 | 2008-10-08 | 张玉良 | Tridimensional distributed type material stream circulating method and ventilated synthetic energy-saving method |
| US20100304656A1 (en) * | 2007-10-30 | 2010-12-02 | Otalicio Pacheco Da Cunha | Integrated aerator for storage and drying silos |
| CN202535776U (en) * | 2012-04-26 | 2012-11-21 | 山东省农业科学院农产品研究所 | Annular current temperature reducing and dehumidifying granary |
| CN205030175U (en) * | 2015-09-14 | 2016-02-17 | 徐州精艺成食品有限公司 | Grain storage silo |
| CN205694423U (en) * | 2016-04-14 | 2016-11-23 | 都晋生 | A kind of comprehensive mechanical grain depot |
-
2016
- 2016-11-27 CN CN201611058735.5A patent/CN106376304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280948A (en) * | 2007-04-02 | 2008-10-08 | 张玉良 | Tridimensional distributed type material stream circulating method and ventilated synthetic energy-saving method |
| US20100304656A1 (en) * | 2007-10-30 | 2010-12-02 | Otalicio Pacheco Da Cunha | Integrated aerator for storage and drying silos |
| CN202535776U (en) * | 2012-04-26 | 2012-11-21 | 山东省农业科学院农产品研究所 | Annular current temperature reducing and dehumidifying granary |
| CN205030175U (en) * | 2015-09-14 | 2016-02-17 | 徐州精艺成食品有限公司 | Grain storage silo |
| CN205694423U (en) * | 2016-04-14 | 2016-11-23 | 都晋生 | A kind of comprehensive mechanical grain depot |
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Application publication date: 20170208 |