CN117168105A - Rolling type grain agricultural product drying equipment - Google Patents

Abstract

The utility model discloses rolling type grain agricultural product drying equipment which comprises a hot air dehumidifying mechanism, a drying kettle, a driving support and a controller, wherein the drying kettle is driven by the driving support to rotate and continuously inputs air flow through the hot air dehumidifying mechanism, the drying kettle comprises a shell cylinder, a net cylinder and a cylinder cover, the shell cylinder and the net cylinder are in a horizontal state and are sequentially and coaxially arranged from outside to inside, an annular gap is formed between adjacent surfaces, two ends of the shell cylinder and the net cylinder are respectively and simultaneously sealed by the cylinder cover, a first cover body channel capable of communicating the hot air dehumidifying mechanism with a cylinder body channel of the net cylinder and a second cover body channel capable of communicating the first cover body channel with the annular gap are respectively arranged on the two cylinder covers, and the controller is respectively and electrically connected with the hot air dehumidifying mechanism and the driving support.

Description

Rolling grain agricultural products drying equipment

【Technical field】

The present invention relates to the technical field of drying equipment, in particular to the technical field of rolling grain agricultural product drying equipment.

【Background technique】

With the development of agricultural industrialization, the production of grain agricultural products such as corn and soybeans is increasingly dependent on exogenous substances such as pesticides, antibiotics, and hormones. In order to avoid the occurrence of excessive pesticide residues caused by the unreasonable use of these substances and ensure the safety of consumers, it is necessary to detect pesticide residues in such grain agricultural products. The tissue crushing method is a relatively common method for detecting pesticide residues in grain agricultural products. Before crushing the grain agricultural products, the grain agricultural products need to be dried first to ensure that the analysis results are more accurate and reliable.

At present, due to the problem of low drying efficiency of spreading grain agricultural products in containers and drying them directly using sunlight, testing agencies often choose to use hot air drying equipment to dry grain agricultural products with hot air. Existing hot air drying equipment includes a conveyor belt for stacking grain agricultural products and an air supply mechanism that sends hot air directly to the conveyor belt, such as a corn kernel drying device disclosed in the utility model patent with announcement number CN203618684U. However, grain agricultural products are prone to uneven drying during stacking, and continuous hot air transportation has the problem of heat waste. In addition, if a hot air circulation system is directly used for hot air circulation and transportation, such as a dual hot air circulation system disclosed in the utility model patent with announcement number CN208208937U, it will be difficult to discharge water vapor and reduce drying efficiency.

[Content of the invention]

The purpose of the present invention is to solve the problems in the prior art and propose a rolling type grain agricultural product drying equipment, which has a simple overall structure, high drying efficiency and good drying uniformity.

In order to achieve the above object, the present invention proposes a rolling type grain agricultural product drying equipment, including a hot air dehumidification mechanism, a drying kettle, a driving support and a controller. The drying kettle is driven to rotate by the driving support and the hot air dehumidification mechanism continuously inputs air flow. The drying kettle includes a shell cylinder, a mesh cylinder and a cylinder cover. The shell cylinder and the mesh cylinder are both in a horizontal state and are arranged coaxially from the outside to the inside and form an annular gap between adjacent surfaces. The shell cylinder The two ends of the mesh cylinder and the mesh cylinder are respectively closed by cylinder covers at the same time. The two cylinder covers are respectively provided with a first cover channel that can connect the hot air dehumidification mechanism and the cylinder channel of the mesh cylinder, and a first cover channel that can connect the first cover channel. With the second cover channel of the annular gap, the controller is electrically connected to the hot air dehumidification mechanism and the driving support respectively.

Preferably, the hot air dehumidification mechanism includes a first air duct, a second air duct, a third air duct, a fourth air duct, a fifth air duct, a fan, a drying box, a solenoid valve and a heater. One end of the pipe is rotatably connected to the air inlet of the drying kettle and the other end is connected to the exhaust pipe of the fan. One end of the second air duct is connected to the atmosphere and the other end is connected to the air inlet pipe of the fan. One end of the third air duct is connected to the wall of the second air duct and the other end is connected to the exhaust port of the drying box. One end of the fourth air duct is connected to the air inlet of the drying box and the other end is connected to the fifth air duct. The walls of the air duct are connected. One end of the fifth air duct is rotatably connected to the exhaust port of the drying kettle and the other end is connected to the atmosphere. The second air duct is above and located between the third air duct and Solenoid valves are respectively installed between the connection point and the free end, on the fifth air duct and between the connection point and the free end of the fourth air duct, and on the fourth air duct, and the heater is installed on the first above the air duct.

Preferably, the middle portions of the two cylinder covers are respectively provided with joint portions extending to a side away from the shell tube and the mesh cylinder, and the two first cover passages respectively pass through the joint portions of the cylinder covers, one of which is The free end of the joint part is rotatably connected to one end of the first air duct, and the free end of the other joint part is rotatably connected to one end of the fifth air duct.

Preferably, the drying box includes a base box and a drying plate. The inner cavity of the base box is separated by a number of partitions and forms a number of slots with openings facing upward. Each of the partitions is provided with a There are gaps in the plate body facing the air inlet and the exhaust port, and drying plates are inserted into each of the slots.

Preferably, a spiral guide piece is provided in the annular gap. The outer edge and the inner edge of the spiral guide piece are respectively connected to the inner wall of the shell tube and the outer wall of the mesh tube and separate the annular gap to form a spiral air duct.

Preferably, the inner walls of the two cylinder covers are respectively provided with several rings of annular grooves, and sealing rings are installed in each ring of the annular grooves.

Preferably, the driving support includes a support ring, a driven gear, a driving gear, a motor and a base. Several of the support rings are rotatably connected outside the shell tube and are coaxially arranged with the shell tube. The driven gears are coaxially fixed outside the shell tube. Several of the driving gears are driven by motors to rotate and mesh with each driven gear one by one. The motors and each support ring are fixed on the base.

Beneficial effects of the present invention:

1) By using a shell cylinder and a mesh cylinder arranged coaxially and horizontally from the outside to the inside as the main body of the drying kettle, a first cover channel and a second cover channel are respectively provided at both ends of the shell cylinder and the mesh cylinder. The drying kettle is connected with the hot air dehumidification mechanism, the driving support and the controller at the same time. During the rotation of the drying kettle driven by the driving support, the hot air dehumidifying mechanism can be used to continuously supply the hot air dehumidification mechanism to the cylinder channel of the mesh cylinder and the shell. The annular gap between the cylinder and the mesh cylinder feeds airflow, so that the grain agricultural products in the rotating mesh cylinder are synchronously dried on both the inside and outside. The overall structure is simple, the drying efficiency is high, and the drying uniformity is good;

2) By adding spiral guides in the annular gap, the outer edge and the inner edge are respectively connected to the inner wall of the shell tube and the outer wall of the mesh cylinder to separate the annular gap to form a spiral air duct. The spiral guide vanes can be used to guide the air flow in the mesh. The outer edge of the cylinder flows spirally, so that the airflow can approach the mesh cylinder and blow toward the grain agricultural products when each spiral flows inward, improving the drying effect of the grain agricultural products located on the wall of the mesh cylinder;

3) By combining the first air duct, the second air duct, the third air duct, the fourth air duct, the fifth air duct, the fan, the drying box, the solenoid valve, the heater and the controller, each solenoid valve can be Open and close to form a primary drying mode and a secondary drying mode. On the one hand, the drying kettle can continuously exchange air with the external environment and quickly discharge moisture under the primary drying mode. On the other hand, it can also be used between the secondary drying mode and the secondary drying mode. The circulating dry hot air is used to dry the product as quickly as possible while reducing heat loss, which can achieve a certain degree of energy saving while ensuring drying efficiency;

4) By using a base box and a drying plate to form a drying box, the plug-in fit between each drying plate and the base box can be used to achieve rapid replacement of desiccant.

The features and advantages of the present invention will be described in detail through the embodiments and the accompanying drawings.

[Picture description]

Figure 1 is a front view of the rolling grain agricultural product drying equipment of the present invention;

Figure 2 is a cross-sectional view of the drying kettle of the rolling grain agricultural product drying equipment of the present invention;

Figure 3 is a schematic assembly diagram of the shell tube and the spiral guide of the rolling grain agricultural product drying equipment of the present invention;

Figure 4 is a front view of the hot air dehumidification mechanism of the rolling grain agricultural product drying equipment of the present invention.

In the picture: 1-hot air dehumidification mechanism, 11-first air duct, 12-second air duct, 13-third air duct, 14-fourth air duct, 15-fifth air duct, 16-fan, 17- Drying box, 171-base box, 172-drying plate, 18-solenoid valve, 19-heater, 2-drying kettle, 21-shell cylinder, 22-spiral guide, 23-mesh cylinder, 24-cylinder cover, 241 -First cover channel, 242-second cover channel, 25-sealing ring, 3-driving support, 31-support ring, 32-passive gear, 33-driving gear, 34-motor, 35-base.

【Detailed ways】

Referring to Figures 1 to 4, the rolling grain agricultural product drying equipment of the present invention includes a hot air dehumidification mechanism 1, a drying kettle 2, a driving support 3 and a controller. The drying kettle 2 is driven to rotate by the driving support 3 and is dehumidified by hot air. Mechanism 1 continuously inputs air flow. The drying kettle 2 includes a shell cylinder 21, a mesh cylinder 23 and a cylinder cover 24. The shell cylinder 21 and the mesh cylinder 23 are both in a horizontal state and are coaxially arranged sequentially from the outside to the inside. An annular gap is formed between adjacent surfaces. Both ends of the shell tube 21 and the mesh tube 23 are respectively closed by cylinder covers 24. The two cylinder covers 24 are respectively provided with a hot air dehumidification mechanism 1 and a mesh cylinder 23 that can communicate with each other. The first cover channel 241 of the cylinder channel and the second cover channel 242 that can connect the first cover channel 241 and the annular gap, the controller is electrically connected to the hot air dehumidification mechanism 1 and the driving support 3 respectively.

The hot air dehumidification mechanism 1 includes a first air duct 11, a second air duct 12, a third air duct 13, a fourth air duct 14, a fifth air duct 15, a fan 16, a drying box 17, a solenoid valve 18 and a heater. 19. One end of the first air duct 11 is rotatably connected to the air inlet of the drying kettle 2 and the other end is connected to the exhaust pipe of the fan 16. One end of the second air duct 12 is connected to the atmosphere and the other end is connected to the atmosphere. One end is connected to the air inlet pipe of the fan 16, one end of the third air duct 13 is connected to the wall of the second air duct 12, and the other end is connected to the exhaust port of the drying box 17. The fourth air duct 14 One end of the fifth air duct 15 is connected to the air inlet of the drying box 17 and the other end is connected to the wall of the fifth air duct 15. One end of the fifth air duct 15 is rotatably connected to the exhaust port of the drying kettle 2 and the other end is connected to the air inlet of the drying box 17. Connected to the atmosphere, the second air duct 12 is located above the connection point with the third air duct 13 and the free end, and the fifth air duct 15 is located above the connection point with the fourth air duct 14 and the free end. Solenoid valves 18 are respectively installed between the ends and on the fourth air duct 14 , and the heater 19 is installed on the first air duct 11 .

The middle portions of the two cylinder covers 24 are respectively provided with joint portions extending to the side away from the shell tube 21 and the mesh cylinder 23, and the two first cover passages 241 respectively pass through the joint portions of the cylinder covers 24, wherein The free end of one joint part is rotatably connected to one end of the first air duct 11 , and the free end of the other joint part is rotatably connected to one end of the fifth air duct 15 .

The drying box 17 includes a base box 171 and a drying plate 172. The inner cavity of the base box 171 is separated by a number of partitions and forms a number of slots with upward openings. Each of the partitions is provided with a drying plate. There are gaps in the plate directly facing the air inlet and the exhaust outlet, and drying plates 172 are respectively inserted into each of the slots.

A spiral guide 22 is provided in the annular gap. The outer edge and the inner edge of the spiral guide 22 are respectively connected to the inner wall of the shell tube 21 and the outer wall of the mesh tube 23 and separate the annular gap to form a spiral air duct.

The inner walls of the two cylinder covers 24 are respectively provided with a plurality of annular grooves, and sealing rings 25 are respectively installed in the annular grooves of each ring.

The driving support 3 includes a support ring 31, a driven gear 32, a driving gear 33, a motor 34 and a base 35. Several of the support rings 31 are rotatably connected outside the shell tube 21 and are coaxial with the shell tube 21. It is arranged that a plurality of the driven gears 32 are coaxially fixed outside the casing 21, and a plurality of the driving gears 33 are driven to rotate by the motor 34 and mesh with each driven gear 32 one by one. The motor 34 and each The support rings 31 are fixed on the base 35 .

Working process of the present invention:

When primary drying the products in the drying kettle 2, only the solenoid valve 18 installed on the second air duct 12 and the fifth air duct 15 is opened, and at the same time, the solenoid valve installed on the fourth air duct 14 is opened. 18 closed. At this time, driven by the fan 16, the outside air first flows into the first air duct 11 along the second air duct 12 and is heated by the heater 19, and then flows into the drying kettle 2 for primary drying of the product, and then It is discharged along the fifth air duct 15 to take the water vapor out of the drying kettle 2 . In addition, in the primary drying mode, the heater 19 does not need to be activated.

When the product is dried for a period of time and the moisture content of the product in the drying kettle 2 is low, the secondary drying mode can be turned on. At this time, the solenoid valve 18 installed on the second air duct 12 and the fifth air duct 15 is closed at the same time, and the solenoid valve 18 installed on the fourth air duct 14 is opened. During operation, the air in the drying kettle 2 can be driven by the fan 16 and first enter the drying box 17 along the fifth air duct 15 and the fourth air duct 14 for drying, and then along the third air duct 13 and the second air duct 12 and flows into the first air duct 11 and is heated by the heater 19, and then flows back into the inner cavity of the drying kettle 2.

For the drying kettle 2, on the one hand, the air flow is input into the cylinder channel of the mesh cylinder 23 along one of the first cover channels 241 and is output out of the drying kettle 2 through the other first cover channel 241. On the other hand, It is input into the spiral air duct along one of the second cover channels 242 and output out of the drying kettle 2 through the other second cover channel 242, so that the grain agricultural products loaded into the mesh cylinder 23 can be processed from both inside and outside respectively. Allow to dry.

In addition, during primary drying and secondary drying, it is also necessary to use the driving support 3 to synchronously drive the drying kettle 2 to rotate. Specifically, the motor 34 is first started to drive each driving gear 33 to rotate, and then each driving gear 33 is used to drive the corresponding driven gear 32 to rotate, and finally the rotation of the drying kettle 2 is realized.

The above embodiments are illustrative of the present invention, not limitations of the present invention. Any simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (7)

1. Rolling type seed agricultural product drying equipment, its characterized in that: including hot-blast dehumidification mechanism (1), drying kettle (2), drive support (3) and controller, drying kettle (2) are by drive support (3) drive rotation and by hot-blast dehumidification mechanism (1) continuous input air current, drying kettle (2) include shell section of thick bamboo (21), net section of thick bamboo (23) and cover (24), shell section of thick bamboo (21) and net section of thick bamboo (23) all are horizontal state and from outer coaxial setting in proper order and form annular gap between adjacent face, the both ends of shell section of thick bamboo (21) and net section of thick bamboo (23) are sealed simultaneously by cover (24) respectively, two be equipped with respectively on cover (24) can communicate first cover body passageway (241) of hot-blast dehumidification mechanism (1) and the barrel passageway of net section of thick bamboo (23) and can communicate first cover body passageway (241) and annular gap's second cover body passageway (242), the controller is connected with hot-blast dehumidification mechanism (1) and drive support (3) electricity respectively.

2. The rolling seed agricultural product drying apparatus of claim 1, wherein: the hot air dehumidifying mechanism (1) comprises a first air pipe (11), a second air pipe (12), a third air pipe (13), a fourth air pipe (14), a fifth air pipe (15), a fan (16), a drying box (17), an electromagnetic valve (18) and a heater (19), wherein one end of the first air pipe (11) is rotatably connected with an air inlet of a drying kettle (2) and the other end of the first air pipe is connected with an exhaust connecting pipe of the fan (16), one end of the second air pipe (12) is connected with the air and the other end of the second air pipe is connected with an air inlet connecting pipe of the fan (16), one end of the third air pipe (13) is communicated with a pipe wall of the second air pipe (12) and the other end of the third air pipe is connected with an air outlet of the drying box (17), one end of the fourth air pipe (14) is connected with an air inlet of the drying box (17) and the other end of the fifth air pipe (15) is connected with the pipe wall of the fifth air pipe (19), one end of the fifth air pipe (15) is rotatably connected with the air outlet of the drying kettle (2) and the other end of the fifth air pipe is connected with the air inlet of the air pipe (12) and is located between the third air pipe (13) and the fourth air pipe (14) are respectively located above the fourth air pipe and the fourth air pipe (14), the heater (19) is arranged above the first air pipe (11).

3. The rolling seed agricultural product drying apparatus of claim 2, wherein: the middle parts of the two cylinder covers (24) are respectively provided with a joint part extending towards one side far away from the shell cylinder (21) and the net cylinder (23), the two first cover body channels (241) respectively penetrate through the joint parts of the cylinder covers (24), one free end of the joint part is rotatably connected with one end of the first air pipe (11), and the other free end of the joint part is rotatably connected with one end of the fifth air pipe (15).

4. The rolling seed agricultural product drying apparatus of claim 2, wherein: the drying box (17) comprises a base box (171) and drying plates (172), wherein the inner cavity of the base box (171) is divided by a plurality of partition boards, a plurality of slots with upward openings are formed, board body notches which are opposite to the air inlet and the air outlet are respectively arranged on each partition board, and the drying plates (172) are respectively inserted into the slots.

5. The rolling seed agricultural product drying apparatus of claim 1, wherein: the annular gap is internally provided with a spiral guide piece (22), and the outer edge and the inner edge of the spiral guide piece (22) are respectively connected with the inner wall of the shell cylinder (21) and the outer wall of the net cylinder (23) and divide the annular gap into a spiral air channel.

6. The rolling seed agricultural product drying apparatus of claim 1, wherein: the inner walls of the two cylinder covers (24) are respectively provided with a plurality of circles of annular grooves, and sealing rings (25) are respectively arranged in the circles of annular grooves.

7. The rolling seed agricultural product drying apparatus of claim 1, wherein: the driving support (3) comprises a supporting ring (31), driven gears (32), driving gears (33), a motor (34) and a base (35), wherein the supporting ring (31) is respectively and rotatably connected with the outside of the shell (21) and coaxially arranged with the shell (21), the driven gears (32) are respectively and coaxially fixed with the outside of the shell (21), the driving gears (33) are respectively driven by the motor (34) to rotate and are meshed with the driven gears (32) one by one, and the motor (34) and the supporting rings (31) are fixed on the base (35).