CN114294913A - In-barn grain drying method - Google Patents
In-barn grain drying method Download PDFInfo
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- CN114294913A CN114294913A CN202210135094.8A CN202210135094A CN114294913A CN 114294913 A CN114294913 A CN 114294913A CN 202210135094 A CN202210135094 A CN 202210135094A CN 114294913 A CN114294913 A CN 114294913A
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- 238000001035 drying Methods 0.000 title claims abstract description 91
- 238000009423 ventilation Methods 0.000 claims abstract description 69
- 238000002474 experimental method Methods 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 20
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 238000009529 body temperature measurement Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 abstract description 146
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000013517 stratification Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
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Abstract
The invention relates to the technical field of grain drying, and discloses a grain warehouse-in drying method, which comprises the steps of designing an experiment for simulating grain warehouse-in drying, drying grains in a warehouse, improving a ventilation device, making reasonable ventilation measures, installing and operating a temperature and humidity monitoring module, a temperature early warning module and the ventilation device, wherein the simulation experiment granary comprises a granary main body, a cover plate is fixedly installed at the top of the granary main body, an air distribution warehouse is arranged at the bottom of the granary main body, and a ventilation plate is arranged on the cover plate. When cereal is dry in the warehouse, air vent and cereal contact that can pass through the ventilation pipe lateral wall in the air admission ventilation pipe carry out the drying to cereal, adjust the ventilation height through the piston and make the cereal of co-altitude in the warehouse all can contact with the air to reach the effect of even dry cereal, when carrying out ventilation drying to cereal in the granary, carry out real-time sample detection to cereal water content and quality, the adjustment ventilation parameter, thereby obtain the best cereal and just dry effect in the warehouse.
Description
Technical Field
The invention relates to the technical field of grain drying, in particular to a grain in-barn drying method.
Background
At present, a dryer and a drying tower are generally adopted in the field of grain drying to dry grains in a large scale, which has important significance for solving the problem of loss in the processes of grain collection, storage and transportation in China, but also has the defects of poor grain drying uniformity, higher unit drying energy consumption, large equipment investment, certain influence on grain quality and the like. In addition, improper drying parameters and process selection can lead to uneven drying of grains and reduced quality, such as protein denaturation, reduced germination rate of seeds, reduced eating quality, and the like. In view of a series of disadvantages of a dryer and a drying tower, grain energy conservation, quality guarantee, uniform drying and related equipment and technology development and application are contents to be researched urgently at present, a warehouse-in drying method developed for grain farmers is a technology integrating drying and warehousing, newly harvested high-moisture grain is stored in a warehouse provided with a mechanical ventilation system, natural environment air is generally used for drying the grain, under the condition of higher environmental humidity, heated air is used as a drying medium, the wind-temperature condition of natural grain airing environment is simulated, low-temperature ventilation drying is carried out on the grain in the warehouse, and the grain safety and quality are guaranteed. The method for drying the grains in the barn mostly adopts a cylindrical barn with the scale of 10-100 tons generally, and has the problems of unbalanced precipitation and serious moisture stratification because the mechanical ventilation auxiliary heating mode is adopted for precipitation, and the conventional barn dumping technology can effectively relieve the moisture stratification problem, but has the disadvantages of time and labor consumption and inconvenient operation, so that the method for drying the grains in the barn is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a grain in-bin drying method, which has the advantages of reasonably drying grains in a granary, monitoring the temperature and the humidity of the grains, avoiding the heating and mildewing of the grains, uniformly drying the grains, and solving the problems of time and labor consumption, inconvenience in operation and non-uniform grain drying of the conventional grain dumping technology which can effectively relieve the moisture stratification condition.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a method for drying grains in a barn comprises the steps of designing an experiment for simulating the drying of grains in the barn, improving a ventilation device, formulating reasonable ventilation measures, installing and operating a temperature and humidity monitoring module, a temperature early warning module and the ventilation device;
the simulation experiment granary comprises a granary main body, a cover plate is fixedly mounted at the top of the granary main body, an air distribution bin is arranged at the bottom of the granary main body, an air exchange plate is arranged on the cover plate, a second air hole is formed in the air exchange plate, a stop block is fixedly mounted below the air exchange plate, a driving motor is rotatably connected to the upper surface of the air exchange plate, a ventilation pipe is mounted inside the granary main body, a piston is mounted inside the ventilation pipe, the lower portion of the piston is in contact with air, a hose is connected to the upper portion of the piston, the pressure of the air inside the two pistons is adjusted by changing the pressure of the air inlet and outlet positions in the hose, and therefore the range of air radiation between the two pistons to grains through the ventilation holes is controlled.
Preferably, the grain in-barn drying method according to the claim specifically comprises the following steps:
s1, designing an experiment for simulating grain drying in a barn, preparing 1 ton of grain, and keeping the volume of the barn at 1.78 cubic meters;
s2, mounting a cover plate and an air exchange plate at the top of the experiment bin;
s3, mounting an air distribution bin at the bottom of the experiment bin;
s4, installing a temperature measuring cable of the temperature sensor in the granary main body;
s5, performing timed and quantitative ventilation on grains in the granary main body by using the air distribution bin and the first ventilation holes on the cover plate;
s6, monitoring the temperature and humidity of grains in the granary main body through temperature and humidity sensors in the grain ventilation process;
s7, triggering a temperature early warning module when the temperature of grains in the granary main body is abnormal, and sending an alarm that the temperature of grains in the granary is abnormal;
s8, carrying out real-time sampling detection on the water content and the quality of the grains while carrying out ventilation drying on the grains in the granary, and taking corresponding measures to adjust ventilation parameters so as to obtain the best in-place grain drying effect.
S9, replacing the grains and repeating the above experiment, thereby obtaining different drying methods of the grains.
Preferably, ventilation unit includes the installation of fan, temperature, humidity monitoring module include temperature, humidity transducer's installation, temperature sensor is including the temperature measurement cable, 1 temperature measurement cable is installed respectively at storehouse center and storehouse body inward flange position to temperature sensor, and every temperature measurement cable sets up temperature sensor in 150mm, 650mm, 1150mm department respectively, respectively at the air distribution storehouse of 100mm department, the bottom of the storehouse of roof apart from grain face and granary main part externally mounted temperature, humidity transducer monitor respectively the temperature, the humidity parameter of roof, air distribution storehouse, external environment.
Preferably, the air pressure of the fan is more than or equal to 300Pa, the air quantity is more than or equal to 400 cubic meters, and the side wall of the granary main body is provided with a discharge pipe orifice.
Preferably, the height of an air distribution bin of the simulation experiment bin is 200mm, the height of the grain is 1500mm, and the diameter of the main body of the grain bin is 1250 mm.
Preferably, the specific flow of the aeration drying is as follows:
s201, air enters the ventilation pipe through the air distribution bin;
s202, air enters the ventilation pipe and enters the space between the two pistons through the hose, and the air between the two pistons is in contact with grains through the vent holes 501;
s203, enabling grains between the two pistons to be in contact with air, and accordingly layering and uniformly drying the grains;
s204, grains in different heights in the bin are all in contact with air by adjusting the position of the piston, so that the grains are dried;
and S205, finally, the effect of uniformly drying the grains is achieved.
Compared with the prior art, the invention provides a grain in-barn drying method, which has the following beneficial effects:
1. the grain warehouse drying method comprises the steps of designing an experiment for simulating grain warehouse drying, preparing 1 ton of grains, installing a cover plate and an air exchange plate at the top of an experimental warehouse, installing an air distribution warehouse at the bottom of the experimental warehouse, installing a temperature measuring cable of a temperature sensor in the main body of the grain warehouse, utilizing first air vents on the air distribution warehouse and the cover plate to conduct timed and quantitative ventilation on the grains in the main body of the grain warehouse, monitoring the temperature and the humidity of the grains in the main body of the grain warehouse through the temperature and humidity sensors in the grain ventilation process, triggering a temperature early warning module when the grain temperature in the main body of the grain warehouse is abnormal, sending an alarm of the abnormal temperature of the grains in the grain warehouse, sampling and detecting the water content and the quality of the grains in real time when the grains in the grain warehouse are ventilated and dried, taking corresponding measures, adjusting ventilation parameters, and obtaining the best grain warehouse drying effect, the grains were changed and the above experiment was repeated to obtain different grain drying methods.
2. This cereal is with drying method in storehouse, driving motor drives the breather plate and rotates when the drying, drive the dog and rotate together when the breather plate rotates, the dog breaks away from the first bleeder vent on the apron gradually at the rotation in-process, thereby make the upper portion of granary main part can carry out the circulation of air, carry out through the circulation of air to cereal through ventilation drying, stop driving motor when the drying finishes, make the breather plate get back to the initial position with the dog and plug up first bleeder vent, make the granary main part have certain sealed effect.
3. This cereal is with drying method in storehouse, the air circulates through the ventilation pipe when dry ventilation, the air passes through the air distribution storehouse and enters into the ventilation pipe, can enter into between two pistons through the hose in the air admission ventilation pipe, the air that is in between two pistons this moment can pass through air vent and cereal contact, carry out layering uniform drying with cereal, position through the adjustment piston, make not co-altitude cereal all can contact with the air in the storehouse, thereby obtain the drying, finally reach the effect of uniform drying cereal. The method comprises the steps of carrying out ventilation drying on grains in the granary, simultaneously carrying out real-time sampling detection on the water content and the quality of the grains, taking corresponding measures, and adjusting ventilation parameters, thereby obtaining the best in-barn drying effect of the grains.
Drawings
FIG. 1 is a schematic view showing the structure of the in-barn drying process of grains according to the present invention;
FIG. 2 is a schematic front view of a grain warehouse-in-place drying experiment warehouse structure of the invention;
FIG. 3 is a schematic top cross-sectional view of the cover plate structure of the present invention;
fig. 4 is a schematic view of the inside cross section of the grain bin of the present invention.
Wherein: 100. a main body of the granary; 101. a cover plate; 102. a first air vent; 200. an air distribution bin; 300. a ventilation plate; 301. a second air hole; 302. a stopper; 400. a drive motor; 500. a vent pipe; 501. a vent hole; 600. a piston; 601. a hose.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a method for drying grains in a barn comprises designing an experiment for simulating the drying of grains in the barn, improving a ventilation device, making reasonable ventilation measures, installing and operating a temperature and humidity monitoring module, a temperature early warning module and the ventilation device;
the simulation experiment granary comprises a granary main body 100, a cover plate 101 is fixedly mounted at the top of the granary main body 100, an air distribution bin 200 is arranged at the bottom of the granary main body 100, an air exchange plate 300 is arranged on the cover plate 101, a second air hole 301 is formed in the air exchange plate 300, a stop block 302 is fixedly mounted below the air exchange plate 300, a driving motor 400 is rotatably connected to the upper surface of the air exchange plate 300, a vent pipe 500 is mounted inside the granary main body 100, a piston 600 is mounted inside the vent pipe 500, the lower portion of the piston 600 is in contact with air, a hose 601 is connected to the upper portion of the piston 600, the pressure of the internal air between the two pistons 600 is adjusted by changing the pressure at the air inlet and outlet positions in the hose 601, and therefore the range of the air radiation between the two pistons 600 to grains through the air holes is controlled.
Specifically, the grain in-barn drying method according to the claim specifically comprises the following steps:
s1, designing an experiment for simulating grain drying in a barn, preparing 1 ton of grain, and keeping the volume of the barn at 1.78 cubic meters;
s2, installing a cover plate 101 and a ventilation plate 300 on the top of the experiment bin;
s3, installing an air distribution bin 200 at the bottom of the experiment bin;
s4, installing a temperature measuring cable of the temperature sensor in the granary main body 100;
s5, performing timed and quantitative ventilation on grains in the granary main body 100 by using the air distribution bin 200 and the first vent holes 102 on the cover plate 101;
s6, monitoring the temperature and humidity of grains inside the granary main body 100 through temperature and humidity sensors in the grain ventilation process;
s7, triggering a temperature early warning module when the temperature of grains in the granary main body 100 is abnormal, and sending an alarm that the temperature of grains in the granary is abnormal;
s8, carrying out real-time sampling detection on the water content and the quality of the grains while carrying out ventilation drying on the grains in the granary, and taking corresponding measures to adjust ventilation parameters so as to obtain the best in-place grain drying effect.
S9, replacing the grains and repeating the above experiment, thereby obtaining different drying methods of the grains.
Specifically, ventilation unit includes the installation of fan, temperature, humidity monitoring module include temperature, humidity transducer's installation, temperature sensor is including the temperature measurement cable, 1 temperature measurement cable is installed respectively at storehouse center and storehouse body inward flange position to temperature sensor, and every temperature measurement cable sets up temperature sensor in 150mm, 650mm, 1150mm department respectively, respectively in the storehouse top apart from 100mm of grain face department, the air distribution storehouse 200 and the granary main part 100 externally mounted temperature, humidity transducer monitor the humiture parameter of storehouse top, air distribution storehouse 200, external environment respectively.
Specifically, the air pressure of the fan is more than or equal to 300Pa, the air quantity is more than or equal to 400 cubic meters, and the side wall of the granary main body 100 is provided with a discharge pipe orifice.
Specifically, the height of the air distribution bin 200 of the simulation experiment bin is 200mm, the height of the grain is 1500mm, and the diameter of the grain bin main body 100 is 1250 mm.
Specifically, the specific flow of the aeration drying is as follows:
s201, air enters the ventilation pipe 500 through the air distribution bin 200;
s202, air enters the ventilation pipe 500 and enters between the two pistons 600 through the hose 601, and the air between the two pistons 600 is in contact with grains through the vent holes 501;
s203, enabling grains between the two pistons 600 to be in contact with air, and accordingly layering and uniformly drying the grains;
s204, grains at different heights in the bin are all in contact with air by adjusting the position of the piston 600, so that the grains are dried;
and S205, finally, the effect of uniformly drying the grains is achieved.
The working principle is as follows: the grain warehouse drying method comprises the steps of designing an experiment for simulating grain warehouse drying, preparing 1 ton of grains, installing a cover plate 101 and an air exchange plate 300 at the top of an experimental warehouse, installing an air distribution warehouse 200 at the bottom of the experimental warehouse, installing a temperature measuring cable of a temperature sensor in a granary main body 100, utilizing first air holes 102 in the air distribution warehouse 200 and the cover plate 101 to regularly and quantitatively ventilate grains in the granary main body 100, monitoring the temperature and the humidity of grains in the granary main body 100 through temperature and humidity sensors in the grain ventilation process, triggering a temperature early warning module when the temperature of grains in the granary main body 100 is abnormal, sending an alarm of abnormal grain temperature in the granary, sampling and detecting the water content and the quality of the grains in real time while ventilating and drying the grains in the granary, taking corresponding measures, adjusting ventilation parameters, finally, the best in-house drying effect of the grains is obtained, the grains are replaced, and the experiment is repeated, so that the drying methods of different grains are obtained;
the driving motor 400 drives the ventilation plate 300 to rotate during drying, the ventilation plate 300 drives the stop block 302 to rotate together during rotation, the stop block 302 is gradually separated from the first air hole 102 in the cover plate 101 during rotation, so that air circulation can be performed on the upper part of the granary main body 100, grains are ventilated and dried through the air circulation, and the driving motor 400 is stopped when drying is finished, so that the ventilation plate 300 and the stop block 302 return to the initial position and block the first air hole 102, and the granary main body 100 has a certain sealing effect;
air enters the ventilation pipe 500 through the air distribution bin 200, enters the ventilation pipe 500 and enters the space between the two pistons 600 through the hose 601, at the moment, the air between the two pistons 600 contacts with grains through the vent holes 501, the air enters the grains through the vent holes 501 in the ventilation pipe 500 between the two pistons 600, moisture in the grains is taken away through the flowing of the air, so that the grains are uniformly dried in a layered mode, the air after drying the grains flows out again from the vent holes 501 in the ventilation pipe 500 above the horizontal line of the upper piston 600 and flows out through the first vent holes 102 in the cover plate 101, the air is circulated, and finally, the moisture in the grains is taken away to dry the grains; through the position of adjustment piston 600 for the cereal of co-altitude not all can contact with the air in the storehouse, thereby obtains the drying, finally reaches the effect of uniform drying cereal, when carrying out ventilation drying to the inside cereal of granary, carries out real-time sample detection to cereal water content and quality, takes corresponding measure, adjusts ventilation parameter, thereby obtains the best cereal drying effect just in storehouse.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A grain in-barn drying method is characterized by comprising the following steps: the method comprises the steps of designing an experiment for simulating the in-barn drying of grains, improving a ventilation device, formulating reasonable ventilation measures, and installing and operating a temperature and humidity monitoring module, a temperature early warning module and the ventilation device;
the simulation experiment granary comprises a granary main body (100), a cover plate (101) is fixedly mounted at the top of the granary main body (100), an air distribution bin (200) is arranged at the bottom of the granary main body (100), an air exchange plate (300) is arranged on the cover plate (101), a second air hole (301) is formed in the air exchange plate (300), a stop block (302) is fixedly mounted below the air exchange plate (300), a driving motor (400) is rotatably connected to the upper surface of the air exchange plate (300), a ventilation pipe (500) is mounted inside the granary main body (100), a piston (600) is mounted inside the ventilation pipe (500), the lower portion of the piston (600) is in contact with air, and the piston (600) is fixedly connected with a hose (601).
2. The method of claim 1, wherein the step of drying the grain in-bin comprises: the method specifically comprises the following steps:
s1, designing an experiment for simulating grain drying in a barn, preparing 1 ton of grain, and keeping the volume of the barn at 1.78 cubic meters;
s2, installing a cover plate (101) and an air exchange plate (300) at the top of the experiment bin;
s3, installing an air distribution bin (200) at the bottom of the experiment bin;
s4, installing a temperature measuring cable of the temperature sensor in the granary main body (100);
s5, performing timed and quantitative ventilation on grains in the granary main body (100) by using the air distribution bin (200) and the first vent holes (102) on the cover plate (101);
s6, monitoring the temperature and humidity of grains inside the granary main body (100) through temperature and humidity sensors in the grain ventilation process;
s7, triggering a temperature early warning module when the temperature of grains in the granary main body (100) is abnormal, and sending an alarm that the temperature of grains in the granary is abnormal;
s8, when the grains in the granary are ventilated and dried, the moisture content and the quality of the grains are sampled and detected in real time, corresponding measures are taken, and ventilation parameters are adjusted, so that the best in-barn drying effect of the grains is obtained.
S9, replacing the grains and repeating the above experiment, thereby obtaining different drying methods of the grains.
3. The method of claim 1, wherein the step of drying the grain in-bin comprises: ventilation unit includes the installation of fan, temperature, humidity monitoring module include temperature, humidity transducer's installation, temperature sensor is including the temperature measurement cable, 1 temperature measurement cable is installed respectively at storehouse center and storehouse internal edge position to temperature sensor, and every temperature measurement cable sets up temperature sensor in 150mm, 650mm, 1150mm department respectively, respectively in storehouse top apart from 100mm of grain face, the air distribution storehouse (200) and the granary main part (100) externally mounted temperature, humidity transducer monitor respectively the temperature, the humidity parameter of storehouse top, air distribution storehouse (200), external environment.
4. The method of claim 2, wherein the step of drying the grain in-bin comprises: the wind pressure of the fan is more than or equal to 300Pa, the wind quantity is more than or equal to 400 cubic meters, and a grain outlet pipe orifice is formed in the side wall of the granary main body (100).
5. The method of claim 1, wherein the step of drying the grain in-bin comprises: the height of an air distribution bin (200) of the simulation experiment bin is 200mm, the height of the grain is 1500mm, and the diameter of the grain bin main body (100) is 1250 mm.
6. The method of claim 1, wherein the step of drying the grain in-bin comprises: the specific flow of the aeration drying is as follows:
s201, air enters the ventilation pipe (500) through the air distribution bin (200);
s202, air enters the ventilation pipe (500) and enters between the two pistons (600) through the hose, and the air between the two pistons (600) is in contact with grains through the ventilation hole (501);
s203, enabling grains between the two pistons (600) to be in contact with air, and thus layering and uniformly drying the grains;
s204, grains at different heights in the bin are all in contact with air by adjusting the position of the piston (600), so that the grains are dried;
and S205, finally, the effect of uniformly drying the grains is achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210135094.8A CN114294913A (en) | 2022-02-14 | 2022-02-14 | In-barn grain drying method |
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| CN202210135094.8A CN114294913A (en) | 2022-02-14 | 2022-02-14 | In-barn grain drying method |
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| CN202524784U (en) * | 2012-02-13 | 2012-11-14 | 杨兰钦 | Grain storage device with hot air drying function |
| CN104429411A (en) * | 2014-12-08 | 2015-03-25 | 宁夏塞上阳光太阳能有限公司 | Grain drying and storing tower |
| AU2017101604A4 (en) * | 2017-07-24 | 2017-12-21 | Tianjin University Of Science And Technology | Movable spliced tunnel negative-pressure self-cold-suction miniature granary |
| CN108184448A (en) * | 2018-03-19 | 2018-06-22 | 河南创卓仓储科技有限公司 | The good silo of ventilation effect |
| CN209030641U (en) * | 2018-08-10 | 2019-06-28 | 湖北昌丰粮机有限公司 | A kind of aeration type silo |
| CN212876798U (en) * | 2020-08-04 | 2021-04-06 | 江苏丰尚钢板仓工程有限公司 | Silo center ventilation unit |
-
2022
- 2022-02-14 CN CN202210135094.8A patent/CN114294913A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524784U (en) * | 2012-02-13 | 2012-11-14 | 杨兰钦 | Grain storage device with hot air drying function |
| CN104429411A (en) * | 2014-12-08 | 2015-03-25 | 宁夏塞上阳光太阳能有限公司 | Grain drying and storing tower |
| AU2017101604A4 (en) * | 2017-07-24 | 2017-12-21 | Tianjin University Of Science And Technology | Movable spliced tunnel negative-pressure self-cold-suction miniature granary |
| CN108184448A (en) * | 2018-03-19 | 2018-06-22 | 河南创卓仓储科技有限公司 | The good silo of ventilation effect |
| CN209030641U (en) * | 2018-08-10 | 2019-06-28 | 湖北昌丰粮机有限公司 | A kind of aeration type silo |
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