A circulating partitioned air-drying granary and its use method

Abstract

The invention discloses a circulating partitioned air-drying granary and a method for using the same. A grain storage cylinder, a conveyor and an elevator are connected in sequence. The grain storage cylinder has a material level sensor and a plurality of temperature and humidity sensors electrically connected to a controller. The controller controls the grain storage cylinder, the conveyor and the elevator to work in coordination. The grain storage cylinder is divided into a straight cylinder and a conical cylinder connected to the straight cylinder. A collection bin is installed at the bottom of the conical cylinder, and an interlayer cavity is formed between the conical cylinder and the collection bin. The collection bin is connected to the side wall of the conical cylinder through a plurality of evenly distributed chutes. An annular air duct pipe is installed at the bottom of the conical cylinder, and a plurality of air distribution pipes are installed on the inner wall of the conical cylinder. The air distribution pipes are connected to the annular air duct pipe, and the annular air duct pipe is connected to the fan. Using the circulating partitioned air-drying granary, materials are directly stored in the silo, and a suitable working mode is selected to achieve the purpose of energy saving and consumption reduction. The material is emptied and air-dried at the same time, and the moisture content and temperature of the material can be quickly controlled, which greatly improves the use experience of the granary.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, in particular to a circulating partitioned air-drying granary and a use method thereof. Background Art

[0002] Traditional granaries are special buildings for storing grain, used to store large quantities of grain. In modern agricultural equipment, new granaries are required to be easy for mechanized operations and bulk grain storage. Cylinder-type granaries made of steel plates or color-coated plates have been introduced. This type of cylinder-type granary is widely welcomed and loved by large farmers and grain purchasing stations because of its large capacity, easy construction and ease of use. Especially for large farmers, considering the low purchase price of new grain, they usually choose to store it in a warehouse and wait for the right time to sell it.

[0003] It is well known that the storage cycle and quality of grain are affected by its moisture content and ambient temperature. Existing steel plate granaries have some defects when in use: because of their own lack of or weak drying performance, large farmers basically lack grain drying equipment due to the limitation of economic investment. At the same time, for new grain, because of its high moisture content, it cannot be directly stored in the warehouse. Generally, the grain is first dried in the drying granary before it can be lifted into the warehouse, which undoubtedly increases the time and cost of grain harvesting; some large farmers may have grain drying equipment, but in the grain storage process, it still needs to be dried before being stored in the warehouse, and grain harvesting and storage are also time-consuming and laborious. Even if the existing granaries with drying performance are used, when emptying the warehouse, either the grain cannot be evenly circulated and air-dried, or the output of the equipment (hot air or air volume) is increased to improve the drying and cooling effect of the grain, and the energy consumption is too large. There is a lack of a steel plate granary that can directly store grain for drying and storage, even circulation and energy saving. Summary of the invention

[0004] The purpose of the present invention is to provide a circulating partitioned air-drying granary and a method of using the same, so as to solve the problem that the drying performance of steel plate granaries is insufficient or weak, and there is a lack of a steel plate granary that can directly store grain for drying, circulate evenly and save energy.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A circulating partitioned air-drying grain bin comprises a grain storage barrel, a conveyor, an elevator and a controller, wherein the feed port of the conveyor is connected to the discharge port of the grain storage barrel, the feed port of the elevator is connected to the discharge port of the conveyor, the discharge port of the elevator is connected to the feed port of the grain storage barrel, the barrel wall of the grain storage barrel is provided with a material level sensor and a plurality of temperature and humidity sensors electrically connected to the controller, and the controller controls the coordinated operation of the grain storage barrel, the conveyor and the elevator; wherein,

[0007] The grain storage cylinder is divided into a straight cylinder and a conical cylinder connected to the straight cylinder from top to bottom, and a feed port is arranged on the top of the straight cylinder;

[0008] A material collection bin is installed at the bottom of the cone body, an interlayer cavity is formed between the cone body and the material collection bin, and the material collection bin is connected to the side wall of the cone body through a plurality of evenly distributed chute pipes;

[0009] An annular air duct pipe is installed at the bottom of the cone body, and a plurality of air distribution pipes parallel to the cone body are evenly installed on the conical inner wall of the cone body. The air inlet end of the air distribution pipe is connected to the air outlet end of the annular air duct pipe through a pipeline, and the air inlet end of the annular air duct pipe is connected to the air outlet end of the fan.

[0010] A further technical solution is that a pneumatic gate is arranged on the slide pipe.

[0011] A further technical solution is that the discharge port of the aggregate bin is provided with an air release port.

[0012] A further technical solution is that an auxiliary feed port is provided at the feed port of the elevator.

[0013] A further technical solution is: an air heater is arranged at the air inlet end of the fan.

[0014] A further technical solution is that a counter-flow fan is installed on the inclined part of the elevator.

[0015] A method for using a circulating partitioned air-drying granary, based on the circulating partitioned air-drying granary, the method is specifically as follows:

[0016] S1, feeding, feeding through the auxiliary feeding port, and the controller controls the elevator to lift the material into the grain storage cylinder;

[0017] S2, collecting working parameters, the controller measures the material level, temperature and humidity of the material in the grain storage barrel through the material level sensor and the plurality of temperature and humidity sensors, and calculates the material volume and the volume ratio of the grain storage barrel to the material through the material level;

[0018] S3, air-drying the material. The controller sets the temperature and humidity suitable for the stored material as basic parameters, and selects a suitable and energy-saving air-drying mode according to the measured working parameters.

[0019] A further technical solution is: in S3, if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is lower than 1 / 3, air blowing is adopted; if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is higher than 1 / 3, circulating air blowing is adopted; if the moisture content of the material is higher than 15%, multiple circulating air blowing is adopted.

[0020] A further technical solution is: in S3, if the temperature of the material is higher than 20°C but lower than 30°C, and the volume ratio of the material is lower than 1 / 3, use wind blowing or circulation; if the temperature of the material is higher than 20°C but lower than 30°C, and the volume ratio of the material is higher than 1 / 3, use circulation plus wind blowing; if the temperature of the material is higher than 30°C, use multiple cycles of circulation plus wind blowing.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] The present invention proposes a circulating partitioned air-drying granary and a method for using the same. Based on a steel plate granary, the granary can air-dry and cool down materials with high moisture or high temperature that are difficult to store (such as newly harvested grain, including but not limited to grain) by means of wind blowing or circulation or a combination of the two, thereby reducing the moisture content and temperature of the materials in the granary and improving the storage period and quality of the materials. After the materials enter the silo, if the measured moisture or temperature is high, the fan can be directly started to blow the materials in the silo from bottom to top to remove the moisture for drying; or the chute between the cone body and the aggregate bin can be used to discharge the materials from the bottom of the granary, and then the conveyor and elevator can be used to circulate the materials; or the fan can be used to introduce external high-pressure air into the granary during the material discharge process, and the wind blowing and circulation can be coordinated to achieve the effect of controlling the moisture content and temperature of the materials.

[0023] In addition, during the discharge (emptying) process, multiple chutes at the bottom of the silo can be used to discharge the materials in sequence, forming a zoned air-drying effect, and the discharge order can be controlled. During the discharge and air-drying process, the materials in the silo can be ensured to be more uniform, preventing the phenomenon that the bottom material remains the bottom material and the middle material remains the middle material after the materials are put into the silo again in the traditional emptying process, affecting the storage effect of the materials.

[0024] The method of using the circulating partitioned air-drying granary can select a suitable air-drying method according to the temperature and humidity of the material and the volume ratio of the material to the granary. On the basis of achieving the drying effect and ensuring the quality of the material, it also realizes energy saving and consumption reduction and reduces costs to meet the low-cost requirements of users, especially individual farmers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a schematic structural diagram of a circulating partitioned air-drying granary.

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the medium grain storage cylinder.

[0027] Figure 3 For the present invention Figure 2 Schematic diagram of the structure from an upward perspective.

[0028] Figure 4 For the present invention Figure 2 Schematic diagram of the structure of the middle cone cylinder.

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the structure from another perspective.

[0030] Figure 6 For the present invention Figure 4 Schematic diagram of the structure from another perspective.

[0031] Figure 7 For the present invention Figure 4 Schematic diagram of the structure from an upward perspective.

[0032] Figure 8 For the present invention Figure 4 Schematic diagram of the structure of the side view perspective.

[0033] Figure numerals: 1. grain storage cylinder; 2. straight cylinder; 3. conical cylinder; 4. collecting bin; 5. chute; 6. annular air duct; 7. air distribution duct; 8. air vent; 9. fan; 10. conveyor; 11. elevator; 12. auxiliary feed port; 13. air heater; 14. counterflow fan. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiment 1:

[0041] In this embodiment, Figure 1-8 As shown, a circulating partitioned air-drying grain silo is mainly a steel structure grain silo, including a grain storage barrel 1 (composed of a stainless steel plate), a conveyor 10, an elevator 11 and a controller. The feed port of the conveyor 10 is connected to the discharge port of the grain storage barrel 1, the feed port of the elevator 11 is connected to the discharge port of the conveyor 10, and the discharge port of the elevator 11 is connected to the feed port of the grain storage barrel 1. The barrel wall of the grain storage barrel 1 is provided with a material level sensor and a plurality of temperature and humidity sensors electrically connected to the controller. The controller controls the coordinated operation of the grain storage barrel 1, the conveyor 10 and the elevator 11; the grain storage barrel 1 is divided into The lower part is divided into a straight cylinder 2 and a conical cylinder 3 connected to the straight cylinder 2, and a feed port is arranged on the top of the straight cylinder 2; a collecting bin 4 is installed at the bottom of the conical cylinder 3, and an interlayer cavity is formed between the conical cylinder 3 and the collecting bin 4, and the collecting bin 4 is connected with the side wall of the conical cylinder 3 through a plurality of evenly distributed chutes 5; an annular air duct pipe 6 is installed at the bottom of the conical cylinder 3, and a plurality of air distribution pipes 7 parallel to the conical inner wall of the conical cylinder 3 are evenly installed, and the air inlet end of the air distribution pipe 7 is connected with the air outlet end of the annular air duct pipe 6 through a pipeline, and the air inlet end of the annular air duct pipe 6 is connected with the air outlet end of the fan 9.

[0042] A method for using a circulating partitioned air-drying granary, based on the circulating partitioned air-drying granary, the method is specifically as follows:

[0043] S1, feeding, feeding through the auxiliary feeding port 12, and the controller controls the elevator 11 to lift the material into the grain storage cylinder 1;

[0044] S2, collecting working parameters, the controller measures the material level, temperature and humidity of the material in the grain storage cylinder 1 through the material level sensor and multiple temperature and humidity sensors, and calculates the material volume and the volume ratio of the grain storage cylinder 1 to the material through the material level;

[0045] S3, air-drying the material. The controller sets the temperature and humidity suitable for the stored material as basic parameters, and selects a suitable and energy-saving air-drying mode according to the measured working parameters.

[0046] Preferably, in S3, if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is lower than 1 / 3, air blowing is adopted; if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is higher than 1 / 3, circulating air blowing is adopted; if the moisture content of the material is higher than 15%, multiple circulating air blowing is adopted.

[0047] Preferably, in S3, if the temperature of the material is higher than 20°C but lower than 30°C, and the volume ratio of the material is lower than 1 / 3, wind blowing or circulation is adopted; if the temperature of the material is higher than 20°C but lower than 30°C, and the volume ratio of the material is higher than 1 / 3, circulation plus wind blowing is adopted; if the temperature of the material is higher than 30°C, multiple cycles of circulation plus wind blowing are adopted.

[0048] The working process of the present invention is as follows: materials (here taking newly harvested grain as an example), under the control of the controller, the new grain enters the warehouse through the elevator 11, the material level sensor can sense the material level height in the grain storage cylinder 1, the temperature and humidity sensor can sense the temperature and humidity in the grain storage cylinder 1 (multiple sets of temperature and humidity values ​​take end values, such as the temperature takes the highest value, the moisture content takes the highest value), and the staff sets the best storage environment parameters according to the type of stored materials. For example, when the grain generally has a low moisture content (below 12.5%) and a low ambient temperature (below 15-20°C), the respiration intensity is weak, but it can maintain a minimum life activity, which is beneficial to storage. The controller will be suitable for the stored material. The temperature and humidity of the material are set as basic parameters, and a suitable and energy-saving air-drying mode is selected according to the measured working parameters. The air-drying modes include blowing mode, circulation mode and blowing circulation mode. After the material enters the warehouse, the measured moisture or temperature is high, and the fan 9 can be directly started to blow the material in the warehouse from bottom to top to take away the moisture for drying; or the chute 5 between the cone cylinder 3 and the collecting bin 4 is used to discharge the material from the bottom of the silo, and then the conveyor 10 and the elevator 11 are used to circulate the material; or in the process of material discharge, the fan 9 is used to introduce external high-pressure air into the silo, and the blowing and circulation are coordinated to achieve the effect of controlling the moisture content and temperature of the material.

[0049] Continuing with the example of new grain, wheat is stored here. When wheat enters the warehouse, if the moisture content of wheat is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is lower than 1 / 3, wind blowing is adopted; if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is higher than 1 / 3, circulating wind blowing is adopted; if the moisture content of the material is higher than 15%, multiple circulating wind blowing is adopted. If the temperature of wheat is higher than 20℃ but lower than 30℃, and the volume ratio of the material is lower than 1 / 3, wind blowing or circulation is adopted; if the temperature of the material is higher than 20℃ but lower than 30℃, and the volume ratio of the material is higher than 1 / 3, circulating wind blowing is adopted; if the temperature of the material is higher than 30℃, multiple circulating wind blowing is adopted.

[0050] A drying test was conducted on 100 tons of newly harvested wheat in Luohe. The local environment in that season was: outdoor temperature was 3-8 degrees Celsius, outdoor humidity was 50-70%, and the humidity (water content) of the newly harvested wheat was 25-30%.

[0051] Air blowing method: After storage, the air volume of the fan selected is 8700-18400 m 3 / h, wind pressure is between 3880-3060pa, the volume ratio of wheat to granary capacity is not less than 1 / 3, after entering the warehouse, the moisture content of wheat changes with time, 8h humidity 28.4, 16h humidity 24.6, 24h humidity 21.7, 32h humidity 18.4, 40h humidity 16.2, 48h humidity 14.5, 56h humidity 12.3, 64h humidity 11.7. In fact, in winter, the introduction of outdoor wind, within 52-60h, continuous wind blowing can meet the storage standard. Of course, the volume ratio of wheat increases and the air drying time increases.

[0052] If you want to store newly harvested rice in summer, we will conduct a drying test on 100 tons of newly harvested rice in Xinyang. The local environment in that season is: the outdoor temperature is 15-36 degrees Celsius, and the humidity (water content) of newly harvested rice is 25-35%. The outdoor humidity is 50-70%, and the temperature in that season is relatively high. If the air drying time is too long within 52-60 hours, the quality of the rice may be affected. You can use the method of wind blowing and circulation. It takes 3 hours for 100 tons of rice to circulate completely. During the circulation, the air is blown continuously. Basically, 8 cycles can meet the storage standard.

[0053] After the drying time of the newly harvested wheat and rice, a mixed mode of wind blowing and circulation is used for 3 days and 3 nights. The drying cost of the material is 5-10 cents / 500 grams. The grain is dried by air drying, with normal color and full grains.

[0054] It is worth noting that in order to ensure the uniformity of the circulating material, the material can be discharged according to the order in which the multiple chutes 5 are arranged, that is, the other chutes 5 are controlled to be closed, one of the chutes 5 is discharged for a certain period of time, and then the discharged chute 5 is closed, and the next chute 5 is opened for discharge, and so on. Each chute 5 discharges the material evenly, making the material circulation more uniform.

[0055] Preferably, a pneumatic gate is provided on the slide pipe 5.

[0056] The pneumatic gate can be used to facilitate the discharge of the slide pipe 5 and realize the control of the discharge of the material in different areas.

[0057] Preferably, the feed end of the slide pipe 5 is close to the outer edge of the conical cylinder 3.

[0058] Preferably, the air distribution pipe 7 is a stainless steel fish scale air permeable pipe.

[0059] The stainless steel fish scale ventilation tube has multiple narrow fish scale-shaped exhaust holes evenly arranged on its wall. When realizing the ventilation function, it can prevent materials from falling and clogging the exhaust holes, thus ensuring normal ventilation effect.

[0060] Preferably, the discharge port of the collecting bin 4 is provided with an air release port 8 .

[0061] The gas in the grain storage cylinder 1 may enter the collection bin 4 along the chute 5. When the grain is filled in single bags (using snakeskin bags), the air vent 8 of the collection bin 4 can release excess gas to ensure normal filling.

[0062] Preferably, an auxiliary feed port 12 is provided at the feed port of the elevator 11 .

[0063] It is convenient for grain outside the warehouse to be replenished into the warehouse through the auxiliary feeding port 12 with the help of the elevator 11.

[0064] Preferably, an air heater 13 is provided at the air inlet end of the fan 9 .

[0065] In order to speed up the drying efficiency of the material, high-temperature air may be introduced through the air heater 13; at the same time, the air heater 13 may also be replaced with an air dryer to prevent high-humidity areas or high-humidity weather from affecting the material drying work.

[0066] Preferably, a counter-flow fan 14 is installed on the inclined portion of the elevator 11 .

[0067] The counter-flow fan 14 can provide an airflow in the opposite direction of the material flow when the material is discharged from the inclined part of the elevator 11, thereby further improving the drying effect.

[0068] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circulating partitioned air-drying granary, characterized in that: The invention comprises a grain storage cylinder (1), a conveyor (10), an elevator (11) and a controller, wherein the feed port of the conveyor (10) is communicated with the discharge port of the grain storage cylinder (1), the feed port of the elevator (11) is communicated with the discharge port of the conveyor (10), the discharge port of the elevator (11) is communicated with the feed port of the grain storage cylinder (1), the cylinder wall of the grain storage cylinder (1) is provided with a material level sensor and a plurality of temperature and humidity sensors electrically connected to the controller, and the controller controls the coordinated operation of the grain storage cylinder (1), the conveyor (10) and the elevator (11); wherein: The grain storage cylinder (1) is divided from top to bottom into a straight cylinder (2) and a conical cylinder (3) connected to the straight cylinder (2), and a feed inlet is provided at the top of the straight cylinder (2); Place A material collection bin (4) is installed at the bottom of the cone body (3), an interlayer cavity is formed between the cone body (3) and the material collection bin (4), and the material collection bin (4) is connected to the side wall of the cone body (3) through a plurality of evenly distributed chute pipes (5); An annular air duct pipe (6) is installed at the bottom of the conical cylinder (3), and a plurality of air distribution pipes (7) are evenly installed on the conical inner wall of the conical cylinder (3) and are parallel to the conical cylinder (3). The air inlet end of the air distribution pipe (7) is connected to the air outlet end of the annular air duct pipe (6) through a pipeline, and the air inlet end of the annular air duct pipe (6) is connected to the air outlet end of the fan (9); An auxiliary feed port (12) is provided at the feed port of the elevator (11); The method for using the circulating partition air-drying grain bin is as follows: S1, feeding, feeding materials through the auxiliary feeding port (12), and the controller controlling the elevator (11) to lift the materials into the grain storage barrel (1); S2, collecting working parameters, the controller measures the material level, temperature and humidity of the material in the grain storage cylinder (1) through the material level sensor and the plurality of temperature and humidity sensors, and calculates the volume of the material and the volume ratio of the grain storage cylinder (1) to the material through the material level; S3, air-drying the material. The controller sets the temperature and humidity suitable for the stored material as basic parameters, and selects a suitable and energy-saving air-drying mode according to the measured working parameters.

2. The circulating partitioned air-drying granary according to claim 1, characterized in that: The slide pipe (5) is provided with a pneumatic gate.

3. The circulating partitioned air-drying granary according to claim 1, characterized in that: The material discharge port of the material collection bin (4) is provided with an air release port (8).

4. The circulating partitioned air-drying granary according to claim 1, characterized in that: An air heater (13) is provided at the air inlet end of the fan (9).

5. The circulating partitioned air-drying granary according to claim 1, characterized in that: A counter-flow fan (14) is installed on the inclined portion of the elevator (11).

6. The circulating partitioned air-drying granary according to claim 1, characterized in that: In S3, if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is lower than 1 / 3, air blowing is adopted; if the moisture content of the material is higher than 12.5% ​​but lower than 15%, and the volume ratio of the material is higher than 1 / 3, circulating air blowing is adopted; if the moisture content of the material is higher than 15%, multiple circulating air blowing is adopted.

7. The circulating partitioned air-drying granary according to claim 1, characterized in that: In S3, if the temperature of the material is higher than 20℃ but lower than 30℃, and the volume ratio of the material is lower than 1 / 3, use wind blowing or circulation; if the temperature of the material is higher than 20℃ but lower than 30℃, and the volume ratio of the material is higher than 1 / 3, use circulation plus wind blowing; if the temperature of the material is higher than 30℃, use multiple cycles plus wind blowing.

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