Tempering layer structure with uniform temperature distribution function

Abstract

The tempering layer structure with the uniform temperature distribution function comprises a grain drying machine and an elevator, a circulating layer, a drying layer, a grain separating layer and a tempering layer are sequentially arranged in the grain drying machine from bottom to top, and six temperature sensors are evenly installed on the front portion and the rear portion of the inner wall of the tempering layer through circular grooves. And a plurality of buffering grain distributing devices are evenly installed on the inner side of the tempering layer, each buffering grain distributing device comprises a pin shaft, the outer surface of each pin shaft is sleeved with a movable plate, supporting plates are arranged on the two sides of the lower portion of each movable plate, a rotating shaft is arranged below the opposite sides of the two supporting plates, and the outer surface of each rotating shaft is sleeved with a cam. According to the utility model, the upper, middle and lower temperatures in the tempering layer can be regulated and controlled, so that the temperature distribution is uniform, the tempering effect is improved, the buffering effect is good, grains are prevented from directly falling down, and the grains are prevented from being cracked and damaged.

Description

Technical Field

[0001] This utility model relates to the field of grain elevator technology, specifically to a tempering layer structure with uniform temperature distribution. Background Technology

[0002] A batch grain dryer loads wet grains into the dryer all at once, dries them, and discharges them all at once, allowing for batch drying production. During the drying process, a hoist transports the grains from the bottom of the dryer to the top for drying. The dryer consists of a circulation layer, a drying layer, a grain distribution layer, a tempering layer, and a top layer, arranged from bottom to top.

[0003] In each cycle, after the grains are divided at the top layer, they enter the tempering layer, where moisture diffuses from the grain's interior to the surface. They are then further divided in the grain-separating layer, dried in the drying layer at the middle, and then enter the circulation layer. From there, they are transported back to the top by an elevator and slowly move downwards, repeating this cycle until the grains are dry. The tempering layer provides a relatively low-temperature, low-wind-velocity environment to further balance the moisture distribution within the grains while gradually lowering the surface temperature. This step is crucial for protecting grain quality and preventing heat damage.

[0004] However, during the use of the dryer, the tempering layer suffers from uneven internal temperature, affecting the quality of the grain. Furthermore, when the grain falls to the bottom of the tempering layer, it tends to clump together, resulting in uneven distribution and poor tempering effect. In addition, without buffering, the grain may fall directly to the bottom of the tempering layer, causing cracking and damage. Therefore, it does not meet the existing requirements. To address this, we propose a tempering layer structure with uniform temperature distribution. Utility Model Content

[0005] The purpose of this invention is to provide a tempering layer structure with uniform temperature distribution to solve the problems mentioned in the background art, such as uneven internal temperature in the tempering layer of the dryer, which affects the quality of the grain, and the grain tending to clump together and fall unevenly when falling to the bottom of the tempering layer, resulting in poor tempering effect. In addition, without buffering, the grain may fall directly to the bottom of the tempering layer, causing cracking and damage to the grain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tempering layer structure with uniform temperature distribution, comprising a grain dryer and an elevator. The grain dryer has, from bottom to top, a circulation layer, a drying layer, a grain distribution layer, and a tempering layer. Six temperature sensors are evenly installed on the inner wall of the tempering layer via circular grooves. Multiple buffer grain distribution devices are evenly installed on the inner side of the tempering layer. Each buffer grain distribution device includes a pin, with a movable plate sleeved on the outer surface of the pin. Support plates are provided on both sides below the movable plate. A rotating shaft is provided below the opposite side of the support plate. A cam is sleeved on the outer surface of the rotating shaft. A partition is installed at the connection between the grain distribution layer and the buffer grain dropping mechanism. A buffer grain dropping mechanism is provided on the inner side of the partition. A hot air guiding device is installed above the rear end face of the grain dryer. The hot air guiding device includes three vertical shells. Air inlet pipes are installed at the top and bottom of the front end face of each vertical shell. A horizontal shell is connected through the middle of the three vertical shells. Three air inlet pipes are evenly installed on the front end face of the horizontal shell. A hot air fan is installed behind the hot air guiding device.

[0007] Preferably, the hot air blower and the grain dryer are fixedly connected by a horizontal plate, the front end of the horizontal plate is provided with a through groove, and the vertical shell passes through the through groove. The vertical shell, the horizontal shell and the rear end of the grain dryer are fixedly connected by a support rod.

[0008] Preferably, the hot air blower is connected to the horizontal housing via a first connecting pipe, and the front end of each air inlet pipe extends to the inner side of the thawing layer. The diameter of the six upper and lower air inlet pipes is larger than the diameter of the three middle air inlet pipes.

[0009] Preferably, an adjustment and control device is installed on the rear end face of the middle vertical shell, and three display screens are installed on the outer surface of the adjustment and control device. The display screens are electrically connected to the temperature sensors at different positions. A solenoid valve is installed on the inner side of the air inlet pipe and is electrically connected to the adjustment and control device.

[0010] Preferably, the upper surface of the movable plate is uniformly provided with a plurality of conical grooves, the support plate is fixedly connected to the inner wall of the easing layer, a buffer pad is fixedly connected to the upper surface of the support plate, the pin is installed on the inner wall of the easing layer through the movable groove, and the two ends of the pin are rotatably connected to the inner wall of the movable groove through bearings.

[0011] Preferably, the grain dryer has a motor installed inside through multiple motor cavities. The output end of the motor is fixedly connected to one end of the rotating shaft through a coupling, and the other end of the rotating shaft is rotatably connected to the inner wall of the tempering layer through a bearing.

[0012] Preferably, the buffer grain feeding mechanism includes a feeding hopper, which is disposed on the upper end face of the partition through a circular hole. The inner wall of the circular hole is provided with an annular groove. Multiple springs are evenly installed on the bottom surface of the annular groove. A limit ring is fixedly connected to the upper end face of the spring. The inner wall of the limit ring is fixedly connected to the outer surface of the feeding hopper. A rubber pad is fixedly connected to the inner wall of the feeding hopper.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with a hot air blower, temperature sensors, an adjustment and control device, and a hot air guiding device. The hot air blower delivers hot air to the inner side of the tempering layer through the vertical shell, horizontal shell, and air inlet pipe. The diameter of the six air inlet pipes at the top and bottom is larger than the diameter of the three air inlet pipes in the middle, which can compensate for the difference in air delivery distance between the top and bottom ends and the middle end, so that the hot air can be quickly delivered to all corners inside the tempering layer, reducing the temperature difference inside the tempering layer. Temperature sensors are installed at the top, middle, and bottom of the tempering layer. Users can observe the temperature inside the tempering layer at the top, middle, and bottom through the display screen. By adjusting the control device, the air output of the solenoid valve can be adjusted, thereby making the temperature inside the tempering layer more uniform and improving the quality of the grain.

[0015] 2. This utility model incorporates a buffer grain distribution device. Grain falls onto a movable plate, with some sliding down the upper surface and the rest falling through a conical groove. This diversion prevents grain accumulation, extends the grain's residence time in the tempering layer, and improves drying efficiency. The movable plate cushions the falling grain, preventing damage. Simultaneously, controlling the motor's switch causes the pin to rotate, which in turn rotates the cam, causing the movable plate to sway up and down, preventing blockage and ensuring a consistent falling speed. The buffer grain dropping mechanism ensures that when grain enters the grain distribution layer through the hopper, it falls onto the hopper. The limiting ring moves up and down within the annular groove, and the spring's extension and retraction cushion the impact, reducing damage. This utility model provides excellent buffering, preventing direct grain fall and thus preventing cracking and breakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side sectional view of the entire utility model;

[0018] Figure 3 This is a side sectional view of the thaw layer of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the buffer grain distribution device of this utility model;

[0020] Figure 5 This is a partial structural schematic diagram of the buffer grain dropping mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the hot air guiding device of this utility model.

[0022] In the diagram: 1. Grain dryer; 2. Hot air blower; 3. Elevator; 4. Circulation layer; 5. Drying layer; 6. Grain distribution layer; 7. Buffer grain dropping mechanism; 701. Hopper; 702. Limiting ring; 703. Annular groove; 704. Spring; 705. Circular hole; 8. Tempering layer; 9. Buffer grain distribution device; 901. Movable plate; 902. Cam; 903. Conical groove; 904. Rotating shaft; 905. Support plate; 906. Pin; 907. Movable groove; 908. Buffer pad; 10. Temperature sensor; 11. Adjustment and control device; 12. Hot air guiding device; 1201. Vertical shell; 1202. Horizontal shell; 1203. Air inlet pipe; 13. Partition plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] The hot air blower 2 (model DPT20-55H) and motor (model 68KTYZ) mentioned in this utility model can be obtained from the market or through private customization.

[0025] Please see Figures 1 to 6This utility model provides an embodiment of a tempering layer structure with uniform temperature distribution, comprising a grain dryer 1 and an elevator 3. The grain dryer 1 has, from bottom to top, a circulation layer 4, a drying layer 5, a grain distribution layer 6, and a tempering layer 8. Six temperature sensors 10 are evenly installed on the front and back of the inner wall of the tempering layer 8 via circular grooves. Multiple buffer grain distribution devices 9 are evenly installed on the inner side of the tempering layer 8. Each buffer grain distribution device 9 includes a pin 906, with a movable plate 901 sleeved on the outer surface of the pin 906. Support plates 905 are arranged on both sides below the movable plate 901. Below one side of the two support plates 905, a... A rotating shaft 904 is provided, and a cam 902 is fitted on the outer surface of the rotating shaft 904. A partition 13 is installed at the connection between the grain layer 6 and the buffer grain dropping mechanism 7. The buffer grain dropping mechanism 7 is provided on the inner side of the partition 13. A hot air guiding device 12 is installed above the rear end face of the grain dryer 1. The hot air guiding device 12 includes three vertical shells 1201. Air inlet pipes 1203 are installed on the upper and lower front ends of the vertical shells 1201. A horizontal shell 1202 is connected through the middle of the three vertical shells 1201. Three air inlet pipes 1203 are evenly installed on the front end face of the horizontal shell 1202. A hot air blower 2 is installed behind the hot air guiding device 12.

[0026] The hot air blower 2 and the grain dryer 1 are fixedly connected by a horizontal plate. The front end of the horizontal plate is provided with a through groove, and the vertical shell 1201 passes through the through groove. The vertical shell 1201, the horizontal shell 1202 and the rear end of the grain dryer 1 are fixedly connected by a support rod to improve the stability of the installation of the hot air blower 2, the vertical shell 1201 and the horizontal shell 1202.

[0027] The hot air blower 2 is connected to the horizontal housing 1202 through the first connecting pipe. The front end of the air inlet pipe 1203 extends to the inside of the tempering layer 8. The diameter of the six upper and lower air inlet pipes 1203 is larger than that of the three middle air inlet pipes 1203, which can compensate for the difference in air delivery distance between the upper and lower ends and the middle end, so that hot air can be quickly delivered to all corners inside the tempering layer 8 and reduce the temperature difference inside the tempering layer 8.

[0028] An adjustment and control device 11 is installed on the rear end face of the middle vertical housing 1201. Three displays are installed on the outer surface of the adjustment and control device 11. The displays are electrically connected to temperature sensors 10 at different positions. A solenoid valve is installed on the inner side of the air inlet pipe 1203. The solenoid valve is electrically connected to the adjustment and control device 11. The temperature measured by the temperature sensor 10 can be displayed on the display screen. The air intake volume can be adjusted by controlling the solenoid valve through the adjustment and control device 11.

[0029] The upper surface of the movable plate 901 is evenly provided with multiple conical grooves 903. The support plate 905 is fixedly connected to the inner wall of the easing layer 8. The upper surface of the support plate 905 is fixedly connected with a buffer pad 908. The pin 906 is installed on the inner wall of the easing layer 8 through the movable groove 907. The two ends of the pin 906 are rotatably connected to the inner wall of the movable groove 907 through bearings, which improves the stability of the support plate 905 and the stability of the rotation of the pin 906.

[0030] The grain dryer 1 has a motor installed inside through multiple motor cavities. The output end of the motor is fixedly connected to one end of the rotating shaft 904 through a coupling. The other end of the rotating shaft 904 is rotatably connected to the inner wall of the tempering layer 8 through a bearing. When the motor is working, it can drive the rotating shaft 904 to rotate, which in turn drives the cam 902 to rotate.

[0031] The buffer grain dropping mechanism 7 includes a hopper 701, which is set on the upper end face of the partition plate 13 through a circular hole 705. The inner wall of the circular hole 705 is provided with an annular groove 703. Multiple springs 704 are evenly installed on the bottom surface of the annular groove 703. A limit ring 702 is fixedly connected to the upper end face of the spring 704. The inner wall of the limit ring 702 is fixedly connected to the outer surface of the hopper 701. A rubber pad is fixedly connected to the inner wall of the hopper 701. When the grain passes through the hopper 701 and enters the grain distribution layer 6, the grain will fall onto the hopper 701. The limit ring 702 moves up and down inside the annular groove 703, and the springs 704 extend and retract to buffer the grain, reduce the impact force on the falling grain, and prevent the grain from being damaged.

[0032] When using this tempering layer structure with uniform temperature distribution, the power is first turned on. A hot air blower 2, temperature sensors 10, an adjustment control device 11, and a hot air guide device 12 are installed. The hot air blower 2 delivers hot air through the vertical shell 1201, horizontal shell 1202, and air inlet pipes 1203 to the inside of the tempering layer 8. The diameters of the six upper and lower air inlet pipes 1203 are larger than the diameters of the three middle air inlet pipes 1203, compensating for the difference in air delivery distance between the upper and lower ends and the middle end. This allows hot air to be quickly delivered to all corners inside the tempering layer 8, reducing the temperature difference inside the tempering layer 8. Temperature sensors 10 are installed at the top, middle, and bottom of the tempering layer 8. Users can observe the temperature of the upper, middle, and lower parts of the tempering layer 8 on the display screen. The air output of the solenoid valve can be adjusted by adjusting the control device 11, thereby making the temperature inside the tempering layer 8 more uniform and improving grain quality. A buffer grain distribution device 9 is installed, allowing grain to fall onto the movable plate 901. Some grain is distributed during the movement... The upper end of plate 901 slides down, while another portion of the grain falls through the conical groove 903, which diverts the grain and prevents it from piling up. This extends the residence time of the grain in the tempering layer 8, improving the drying effect. The movable plate 901 provides cushioning for the falling grain, preventing it from being damaged. Simultaneously, by controlling the motor switch, the motor drives the pin shaft 906 to rotate, which in turn drives the cam 902 to rotate, causing the movable plate 901 to sway up and down, preventing grain blockage and ensuring the falling speed of the grain. With the buffer grain dropping mechanism 7, when the grain enters the grain distribution layer 6 through the feeding hopper 701, it will fall onto the feeding hopper 701. The limiting ring 702 moves up and down inside the annular groove 703, and the spring 704 extends and retracts to buffer the falling grain, reducing the impact force and preventing damage. This utility model can regulate the temperature of the upper, middle, and lower parts of the tempering layer 8, making the temperature distribution uniform, improving the tempering effect, and providing good cushioning to prevent the grain from falling directly and cracking.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A slow recovery layer structure with temperature uniform distribution function, comprising a grain dryer (1) and an elevator (3), the inside of the grain dryer (1) is sequentially provided with a circulating layer (4), a drying layer (5), a grain distribution layer (6) and a slow recovery layer (8) from bottom to top, characterized in that: Six temperature sensors (10) are evenly installed in the front and back of the inner wall of the slow recovery layer (8) through circular grooves, a plurality of buffer grain distribution devices (9) are evenly installed on the inner side of the slow recovery layer (8), the buffer grain distribution device (9) comprises a pin shaft (906), the outer surface of the pin shaft (906) is sleeved with a movable plate (901), the movable plate (901) is provided with a support plate (905) on both sides below, a rotating shaft (904) is arranged below the opposite side of the two support plates (905), the outer surface of the rotating shaft (904) is sleeved with a cam (902), a partition plate (13) is installed at the connection between the grain distribution layer (6) and the buffer grain falling mechanism (7), the buffer grain falling mechanism (7) is arranged on the inner side of the partition plate (13), the hot air flow guide device (12) is installed above the rear end face of the grain dryer (1), the hot air flow guide device (12) comprises three vertical shells (1201), air inlet pipes (1203) are installed on the upper and lower end faces of the front end face of the vertical shell (1201), a horizontal shell (1202) is connected through the middle of the three vertical shells (1201), three air inlet pipes (1203) are evenly installed on the front end face of the horizontal shell (1202), and the hot air fan (2) is installed behind the hot air flow guide device (12).

2. The slow recovery layer structure with temperature uniform distribution function according to claim 1, characterized in that: The hot air fan (2) and the grain dryer (1) are fixedly connected through a horizontal plate, the front end face of the horizontal plate is provided with a through groove, and the vertical shell (1201) penetrates through the through groove, and the vertical shell (1201) and the horizontal shell (1202) are fixedly connected to the rear end face of the grain dryer (1) through a support rod.

3. The slow recovery layer structure with temperature uniform distribution function according to claim 1, characterized in that: The hot air fan (2) is connected with the horizontal shell (1202) through a first connecting pipe, the front ends of the air inlet pipes (1203) extend to the inner side of the slow recovery layer (8), the diameters of the six air inlet pipes (1203) on the upper and lower sides are greater than the diameters of the three air inlet pipes (1203) in the middle.

4. The slow recovery layer structure with temperature uniform distribution function according to claim 1, characterized in that: An adjustment control device (11) is installed on the rear end face of the middle vertical shell (1201), three display screens are installed on the outer surface of the adjustment control device (11), the display screens are electrically connected with the temperature sensors (10) at different positions respectively, electromagnetic valves are installed on the inner sides of the air inlet pipes (1203), and the electromagnetic valves are electrically connected with the adjustment control device (11).

5. The slow recovery layer structure with temperature uniform distribution function according to claim 1, characterized in that: A plurality of conical grooves (903) are evenly arranged on the upper end face of the movable plate (901), the support plate (905) is fixedly connected with the inner wall of the slow recovery layer (8), a buffer pad (908) is fixedly connected to the upper end face of the support plate (905), the pin shaft (906) is installed on the inner wall of the slow recovery layer (8) through a movable groove (907), and both ends of the pin shaft (906) are rotatably connected with the inner wall of the movable groove (907) through bearings.

6. The structure of claim 5, wherein the structure further comprises a temperature uniform distribution function. The inside of the grain dryer (1) is provided with motors through a plurality of motor cavities, an output end of the motor is fixedly connected with one end of the rotating shaft (904) through a shaft coupling, and the other end of the rotating shaft (904) is rotatably connected with the inner wall of the buffer layer (8) through a bearing.

7. The structure of claim 1, wherein the structure further comprises a temperature uniform distribution function. The buffer grain falling mechanism (7) comprises a lower hopper (701), the lower hopper (701) is arranged on the upper end face of the partition plate (13) through a round hole (705), the inner wall of the round hole (705) is provided with an annular groove (703), a plurality of springs (704) are uniformly arranged on the bottom surface of the annular groove (703), the upper end surface of the spring (704) is fixedly connected with a limiting ring (702), the inner wall of the limiting ring (702) is fixedly connected with the outer surface of the lower hopper (701), and the inner wall of the lower hopper (701) is fixedly connected with a rubber pad.

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