A spiral grain drying equipment
By setting up alternating spiral structures and L-shaped flip plates in the drying equipment, the problem of uneven heating of grains in existing dryers is solved, and a more efficient and even grain drying effect is achieved, and the quality of grains after drying is improved.
Patent Information
- Application Number
- CN202421552729.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-03
AI Technical Summary
During the drying process of existing dryers, the grains accumulated inside are not easily heated, resulting in a long drying time and uneven effect. Before drying, the grain shell and dust and moisture mix affect the quality of the grain.
Using a spiral grain drying equipment, the grain is moved and turned by setting an alternating first and second spirals in the drying cylinder to ensure that the grain is heated evenly. In addition, the combination of L-shaped flip plate and hot air fan is used to effectively remove dust and improve drying effect.
It achieves uniform drying of grains, shortens drying time, improves drying effect, reduces the impact of moisture on grain quality, and simplifies subsequent cleaning operations.
Smart Images
Figure CN222747692U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drying equipment, in particular to a spiral grain drying equipment. Background Art
[0002] Grains cannot be shelled directly after harvesting, because the newly harvested grains contain a lot of water. If they are shelled directly, the grains will easily break, and the grains with high water content will germinate and grow mold, so the grains need to be dried.
[0003] Grain drying relies on natural sunlight, which is inefficient and only suitable for small-scale production. A dryer is needed for large-scale production. Common dryers use high-temperature hot air to exchange heat with high-moisture, low-temperature grains to increase the temperature of the grains and evaporate the moisture. However, the accumulated grains are not easily heated during the drying process, resulting in long drying time and uneven drying effect. Before drying, the grain husks and dust mixed with the evaporated moisture can easily affect the quality of the grain. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a spiral grain drying device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A spiral grain drying device comprises a mounting frame and a drying cylinder, wherein a drying cylinder is fixedly connected to one side of the top of the mounting frame, the drying cylinder is placed horizontally, an inner sleeve is sleeved inside the drying cylinder, an interlayer is arranged between the drying cylinder and the inner sleeve, an electric heating wire is installed in the interlayer, the inner wall shafts at both ends of the drying cylinder are connected to a central shaft, a first opening is provided at the top of the drying cylinder and the inner sleeve close to the mounting frame, a feeding box is provided at the top of the first opening, and a hot air blower is connected to the end air duct of the drying cylinder and the inner sleeve away from the mounting frame.
[0007] Preferably, the central axis passes through the drying cylinder near one side of the mounting frame and is rotatably connected to the top of the mounting frame. A driving motor is fixedly installed at the bottom of the mounting frame, and the output shaft of the driving motor is connected to the central axis at the top of the mounting frame through a belt.
[0008] Preferably, a plurality of evenly distributed first spirals are fixedly connected to the outer wall of the central axis, a second spiral is fixedly connected to the outer wall of the central axis between every two first spirals, the spiral directions of the first spiral and the second spiral are opposite, the diameter of the first spiral is larger than the diameter of the second spiral, and both the first spiral and the second spiral are inside the inner sleeve.
[0009] Preferably, an inverted trapezoidal feed opening is provided on the top of the feed box, and a side hole is opened on one side of the feed box.
[0010] Preferably, an L-shaped flap is rotatably connected to the top of the side hole, the horizontal side of the L-shaped flap is adapted to the bottom of the feed port, and the vertical side of the L-shaped flap is adapted to the side hole. The rotating shaft of the L-shaped flap is connected to the feed box and a vertically mounted weight is fixedly connected to the end.
[0011] Preferably, the side hole is connected to a collecting box via a pipeline, a bag dust collector is installed inside the collecting box, an ash discharge port is opened at the bottom of the collecting box, and a duct is connected to an induced draft fan on a side of the collecting box away from the side hole.
[0012] Preferably, a discharge port is provided at the bottom end of the drying cylinder and the inner sleeve close to the hot air blower, and an electric gate valve is installed on one side of the discharge port.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model arranges a first spiral and a second spiral, and the first spiral and the second spiral are arranged alternately and have different sizes. In the process of the spiral rotating to turn the grains to dry, the first spiral with a larger size drives the grains to move from the inlet toward the outlet, and at the same time the second spiral with a smaller size can effectively turn the moving grains so as not to prevent the grains from moving forward, thereby extending the time the grains stay in the inner sleeve, so that the grains are heated more evenly, the moisture is fully evaporated, and the drying effect is improved.
[0015] The utility model provides an L-shaped flap, which rotates due to the force of the grains falling when the grains are loaded, so that the grains can enter the drying cylinder and the hot air blower can blow out the dust carried by the grains from the side holes. After the loading is completed, the L-shaped flap returns to its initial state under the action of a heavy hammer. When the grains are dried, the induced draft fan and the hot air blower work together to cooperate with the L-shaped flap to blow out the dust and evaporated water from the inner sleeve and suck them into the collection box for dust removal and collection, thereby improving the quality of the dried grains and reducing the subsequent cleaning operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a spiral grain drying equipment proposed by the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of a collection box of a spiral grain drying equipment proposed by the utility model;
[0018] Figure 3 This is a cross-sectional view of the drying drum structure of a spiral grain drying equipment proposed by the utility model;
[0019] Figure 4 This is a schematic diagram of the first spiral and the second spiral structure of a spiral grain drying device proposed by the utility model;
[0020] Figure 5 This is a schematic diagram of the feeding box structure of a spiral grain drying equipment proposed by the utility model;
[0021] Figure 6 This is a top view of a feeding box of a spiral grain drying device proposed by the utility model;
[0022] Figure 7 The utility model provides a schematic diagram of an L-shaped flap structure of a spiral grain drying device.
[0023] In the figure: 1. mounting frame; 2. driving motor; 3. drying cylinder; 4. inner sleeve; 41. interlayer; 5. central axis; 6. first spiral; 7. second spiral; 8. feeding port; 9. feeding box; 10. first opening; 11. side hole; 12. L-shaped flap; 13. heavy hammer; 14. collecting box; 15. induced draft fan; 16. discharging port; 161. electric gate valve; 17. hot air blower. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0025] Reference Figure 1-7 A spiral grain drying device comprises a mounting frame 1 and a drying drum 3, wherein the drying drum 3 is fixedly connected to one side of the top of the mounting frame 1, the drying drum 3 is placed horizontally, an inner sleeve 4 is sleeved inside the drying drum 3, an interlayer 41 is arranged between the drying drum 3 and the inner sleeve 4, an electric heating wire is installed in the interlayer 41, a central axis 5 is connected to the inner wall axis at both ends of the drying drum 3, a first opening 10 is opened at the top of the drying drum 3 and the inner sleeve 4 close to the mounting frame 1, a feed box 9 is arranged at the top of the first opening 10, and a hot air blower 17 is connected to the end air duct of the drying drum 3 and the inner sleeve 4 away from the mounting frame 1. The drying drum 3 and the inner sleeve 4 arranged on both sides can evenly transfer heat to the inner sleeve 4 when the electric heating wire is heated to heat and dry the grains, and the hot air blower 17 can blow out the dust and scattered shells carried by the grains to the outside of the feed box 9 while cooperating with the electric heating wire to dry the grains, and at the same time, the evaporated water is taken out of the inner sleeve 4 in time during the grain drying process to prevent the water from affecting the quality of the grains.
[0026] As a technical optimization solution of the utility model, the central shaft 5 passes through the drying drum 3 near the side of the mounting frame 1 and is rotatably connected to the top of the mounting frame 1. A driving motor 2 is fixedly installed at the bottom of the mounting frame 1, and the output shaft of the driving motor 2 is connected to the central shaft 5 at the top of the mounting frame 1 through a belt. The central shaft 5 is driven to rotate by the driving motor 2, and the rotation direction can be controlled during operation.
[0027] As a technical optimization scheme of the utility model, a plurality of evenly distributed first spirals 6 are fixedly connected to the outer wall of the central axis 5, and a second spiral 7 is fixedly connected to the outer wall of the central axis 5 between every two first spirals 6. The spiral directions of the first spiral 6 and the second spiral 7 are opposite, and the diameter of the first spiral 6 is larger than the diameter of the second spiral 7. The first spiral 6 and the second spiral 7 are both inside the inner sleeve 4. The first spiral 6 and the second spiral 7 are alternately arranged and have different sizes. In the process of spiral rotation and turning the grains for drying, the larger first spiral 6 drives the grains to move from the feed port 8 to the discharge port 16, and the smaller second spiral 7 can effectively turn the grains in motion, prolonging the time the grains stay in the inner sleeve 4, so that the grains are heated more evenly, the water evaporates fully, and the drying effect is improved.
[0028] As a technical optimization solution of the utility model, an inverted trapezoidal feed opening 8 is provided on the top of the feed box 9, and a side hole 11 is opened on one side of the feed box 9. The feed opening 8 is convenient for loading.
[0029] As a technical optimization solution of the utility model, an L-shaped flap 12 is rotatably connected to the top of the side hole 11, the horizontal side of the L-shaped flap 12 is adapted to the bottom of the feed port 8, and the vertical side of the L-shaped flap 12 is adapted to the side hole 11. The rotating shaft of the L-shaped flap 12 penetrates the feed box 9 and a vertically mounted weight 13 is fixedly connected to the end. When the grains are loaded, the L-shaped flap 12 is rotated by the force of the falling grains, which facilitates the grains to enter the drying cylinder 3, and at the same time facilitates the hot air blower 17 to blow the dust carried by the grains out of the side hole 11. After the loading is completed, under the action of the weight 13, the L-shaped flap 12 returns to the initial state.
[0030] As a technical optimization solution of the utility model, the side hole 11 is connected to a collection box 14 through a pipeline, a bag dust collector is installed inside the collection box 14, an ash discharge port is opened at the bottom of the collection box 14, and a draught fan 15 is connected to the pipeline on the side of the collection box 14 away from the side hole 11. When drying grains, the draught fan 15 and the hot air blower 17 work together to blow dust and evaporated water out of the inner sleeve 4 and suck them into the collection box 14 for dust removal and collection.
[0031] As a technical optimization solution of the utility model, a discharge port 16 is provided at the bottom of the drying cylinder 3 and the inner sleeve 4 near the hot air blower 17, and an electric gate valve 161 is installed on one side of the discharge port 16. The discharge port 16 is used to release the dried grains, and the electric gate valve 161 can control the opening and closing of the discharge port 16.
[0032] When the utility model is in use, the staff starts the driving motor 2, the induced draft fan 15 and the hot air blower 17 respectively, so that the central shaft 5 drives the first spiral 6 and the second spiral 7 to rotate, and the hot air blower 17 and the induced draft fan 15 circulate the air in the inner sleeve 4 and guide it to the collecting box 14. At this time, grains are added through the feeding port 8. When the falling grains collide with the L-shaped flap 12, the L-shaped flap 12 is forced to flip over so that the feeding port 8 and the side hole 11 are opened, and the grains fall into the inner sleeve 4 and are driven by the first spiral 6 and the second spiral 7 to slowly move toward the discharge port 16. During this period, the grains are dried under the joint action of the hot air blower 17 and the electric heating wire, and are fully turned evenly by the first spiral 6 and the second spiral 7. The dust and evaporated water generated during the drying process are blown out of the inner sleeve 4 and sucked into the collecting box 14 for dust removal and collection. Finally, the dried grains are released from the discharge port 16.
[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A spiral grain drying device, comprising a mounting frame (1) and a drying drum (3), characterized in that: A drying cylinder (3) is fixedly connected to one side of the top of the mounting frame (1), the drying cylinder (3) is placed horizontally, an inner sleeve (4) is sleeved inside the drying cylinder (3), an interlayer (41) is provided between the drying cylinder (3) and the inner sleeve (4), an electric heating wire is installed in the interlayer (41), the inner wall axes at both ends of the drying cylinder (3) are connected to a central axis (5), a first opening (10) is provided at the top of the side of the drying cylinder (3) and the inner sleeve (4) close to the mounting frame (1), a material feeding box (9) is provided at the top of the first opening (10), and a hot air blower (17) is connected to the end air duct of the drying cylinder (3) and the inner sleeve (4) away from the mounting frame (1).
2. The spiral grain drying equipment according to claim 1, characterized in that: The central axis (5) passes through the drying drum (3) on one side close to the mounting frame (1) and is rotatably connected to the top of the mounting frame (1). A driving motor (2) is fixedly mounted on the bottom of the mounting frame (1), and the output shaft of the driving motor (2) is connected to the central axis (5) at the top of the mounting frame (1) via a belt.
3. The spiral grain drying equipment according to claim 1, characterized in that: The outer wall of the central axis (5) is fixedly connected to a plurality of evenly distributed first spirals (6); the outer wall of the central axis (5) between every two first spirals (6) is fixedly connected to a second spiral (7); the spiral directions of the first spiral (6) and the second spiral (7) are opposite; the diameter of the first spiral (6) is greater than the diameter of the second spiral (7); and both the first spiral (6) and the second spiral (7) are located inside the inner sleeve (4).
4. The spiral grain drying equipment according to claim 1, characterized in that: The top of the feed box (9) is provided with an inverted trapezoidal feed opening (8), and one side of the feed box (9) is provided with a side hole (11).
5. The spiral grain drying equipment according to claim 4, characterized in that: The top of the side hole (11) is rotatably connected to an L-shaped flap (12), the horizontal side of the L-shaped flap (12) is adapted to the bottom of the feed port (8), and the vertical side of the L-shaped flap (12) is adapted to the side hole (11), the rotating shaft of the L-shaped flap (12) passes through the feed box (9) and the end is fixedly connected to a vertically mounted weight (13).
6. The spiral grain drying equipment according to claim 5, characterized in that: The side hole (11) is connected to a collection box (14) via a pipeline, a bag dust collector is installed inside the collection box (14), an ash discharge port is provided at the bottom of the collection box (14), and a pipeline on a side of the collection box (14) away from the side hole (11) is connected to an induced draft fan (15).
7. The spiral grain drying equipment according to claim 1, characterized in that: A discharge port (16) is provided at the bottom end of the drying cylinder (3) and the inner sleeve (4) close to the hot air blower (17), and an electric gate valve (161) is installed on one side of the discharge port (16).