Ramie stalk pretreatment microwave drying box

Abstract

The utility model relates to the field of ramie stalk drying, in particular to a ramie stalk pretreatment microwave drying oven. The tiling device comprises a workbench, a conveying belt arranged on the outer side of the workbench, a tiling mechanism, a material turning mechanism and a tiling plate. The tiling mechanism is arranged on the side face of the workbench. The material turning mechanism is arranged on the side surface of the tiling mechanism; and a sliding block is arranged at the end part of the tiling plate. Through the arrangement of the tiling mechanism, when ramie stalks are conveyed on the conveying belt, the second motor drives the tiling plate to vibrate left and right, so that the ramie stalks are tiled on the conveying belt, and the problems that the thicknesses of the stalks are uneven, the microwave penetration depth of a thick area is insufficient, the outer layer is too hot, and the interior is not dried thoroughly can be avoided; the microwave energy is ensured to uniformly act on each part, local overheating or insufficient drying is avoided, the moisture gradient can be effectively reduced, and uneven structure shrinkage or cracking caused by too fast local drying is prevented.

Description

Technical Field

[0001] This utility model relates to the field of ramie stem drying, and more particularly to a microwave drying oven for ramie stem pretreatment. Background Technology

[0002] In ramie stalk pretreatment, the microwave drying oven for ramie stalk pretreatment is a specialized device that utilizes microwave heating technology to rapidly and uniformly dry and pretreat ramie stalks. This equipment effectively removes moisture from the stalks, improving the efficiency of subsequent processes such as degumming and fiber separation. It is widely used in textiles, papermaking, and biomass materials industries.

[0003] However, the existing solution has the following shortcomings: the existing microwave drying oven for ramie stalk pretreatment cannot spread the ramie stalks evenly, resulting in different thicknesses of the ramie stalks and uneven drying. At the same time, it cannot stir the ramie stalks, so the stalks at the bottom cannot be dried effectively. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art that it is impossible to evenly spread out ramie stalks and flip the lower stalks to the top, and to propose a microwave drying oven for ramie stalk pretreatment.

[0005] The technical solution of this utility model: a microwave drying box for pretreatment of ramie stalks, including a workbench and a conveyor belt disposed outside the workbench; further comprising:

[0006] The spreading mechanism is located on the side of the workbench and is used to spread out the ramie stalks that are laid on the conveyor belt so that the thickness of each material is the same.

[0007] The turning mechanism is located on the side of the spreading mechanism and is used to turn over the ramie stalks after they have been dried once.

[0008] The system includes a flat ramie board with a sliding block at one end, a telescopic rod at the other end of the sliding block, a spring on the outside of the telescopic rod, and a limit plate at the end of the telescopic rod furthest from the sliding block. The limit plate is located on the top of the workbench and has a groove for sliding with the sliding block, ensuring stable sliding of the sliding block on the limit plate. The bottom of the flat ramie board is flat, and the sides are sloped. It shakes left and right under the drive of the flat ramie mechanism, flattening the ramie stalks at the bottom during the shaking process. The stalks that fall onto the flat ramie board slide back onto the conveyor belt through the slopes on both sides.

[0009] Preferably, the tiling mechanism includes a fixed shaft, a connecting frame, a second motor, and a second rotating shaft;

[0010] The fixed shaft is located at the end of the sliding block away from the flat plate, the connecting frame is located on the side of the limiting plate, the second motor is located inside the connecting frame, the second rotating shaft is located at the output end of the second motor, a rotating rod is located on the outside of the second rotating shaft, the end of the rotating rod away from the second motor is rotatably connected to the outside of the limiting plate, and a power plate is located at the end of the rotating rod away from the second rotating shaft.

[0011] Preferably, a drying chamber is provided on the top of the limiting plate, a microwave dryer is provided on the top of the drying chamber, and ventilation slots are provided on the side of the drying chamber.

[0012] Preferably, a motor is installed on the side of the drying box away from the ventilation slot, a rotating shaft is installed at the output end of the motor, and an air blower is installed at the end of the rotating shaft away from the motor.

[0013] Preferably, the material turning mechanism includes a third rotating shaft, a first synchronous wheel, and a material turning assembly;

[0014] The third rotating shaft is located at the end of the second motor that is furthest from the second rotating shaft, and the first synchronous pulley is located at the end of the third rotating shaft that is furthest from the second motor;

[0015] The material turning component is located on the side of the synchronous wheel and is used to turn over the ramie stalks.

[0016] Preferably, the material tipping assembly includes a second synchronous wheel, a connecting shaft, a rotating frame, and a tipping hopper;

[0017] Synchronous pulley two is located at the end of the synchronous belt away from synchronous pulley one, the connecting shaft is located at the axis of synchronous pulley two, the rotating frame is located on the outside of the connecting shaft, the side of the rotating frame is provided with a tipping hopper, and the top of the limiting plate is provided with an arc-shaped baffle.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] 1. Through the setting of the spreading mechanism, when the ramie stalks are transported on the conveyor belt, the motor drives the spreading plate to vibrate left and right, thereby spreading the ramie stalks evenly on the conveyor belt. This can avoid uneven thickness of the stalks and insufficient microwave penetration depth in thicker areas, which can easily lead to overheating of the outer layer while the inside is not dry. It ensures that microwave energy is applied evenly to all parts, avoiding local overheating or insufficient drying. It can also effectively reduce the moisture gradient and prevent uneven structural shrinkage or cracking caused by excessively rapid local drying.

[0020] 2. Through the setting of the turning mechanism, the second motor drives the rotating frame to rotate, and the rotating frame drives the three turning hoppers to rotate along the arc-shaped baffle, thereby turning the ramie stalks at the bottom to the top for drying. This allows the stalks that were originally at the bottom to be exposed to a stronger microwave field, balancing the drying rate of each part, and strengthening the heating of areas that were originally drying slowly, thus improving the overall moisture evaporation rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Internal structure diagram;

[0023] Figure 3 This is a schematic diagram of the tiling mechanism;

[0024] Figure 4 This is a schematic diagram of the result of the material turning mechanism.

[0025] Reference numerals in the attached drawings: 1. Workbench; 2. Conveyor belt; 3. Drying oven; 4. Microwave dryer; 5. Ventilation duct; 601. Motor 1; 602. Rotating shaft 1; 603. Air blower; 701. Limiting plate; 702. Telescopic rod; 703. Spring; 704. Sliding block; 705. Fixed shaft; 706. Power plate; 707. Connecting frame; 708. Motor 2; 709. Rotating shaft 2; 710. Rotating rod; 711. Flat plate; 801. Rotating shaft 3; 802. Synchronous pulley 1; 803. Synchronous belt; 804. Synchronous pulley 2; 805. Connecting shaft; 806. Rotating frame; 807. Tilting hopper; 808. Arc-shaped baffle. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-3 As shown, the present invention proposes a microwave drying box for ramie stalk pretreatment, which includes a workbench 1, a conveyor belt 2 disposed outside the workbench 1, a paving mechanism, a turning mechanism, and a paving plate 711.

[0028] The spreading mechanism is located on the side of the workbench 1 and is used to spread out the ramie stalks that are lying on the conveyor belt 2 so that the thickness of each material is the same.

[0029] The turning mechanism is located on the side of the spreading mechanism and is used to turn over the ramie stalks after they have been dried once.

[0030] A sliding block 704 is provided at the end of the flat plate 711, and a telescopic rod 702 is provided at the end of the sliding block 704. A spring 703 is provided on the outside of the telescopic rod 702. A limiting plate 701 is provided at the end of the telescopic rod 702 away from the sliding block 704. The limiting plate 701 is located on the top of the workbench 1. A sliding groove is provided on the limiting plate 701 for sliding connection with the sliding block 704, thereby ensuring the stable sliding of the sliding block 704 on the limiting plate 701. The bottom of the flat plate 711 is set as a flat surface, and the two sides are set as inclined surfaces. Under the drive of the flattening mechanism, it shakes left and right. During the shaking process, the ramie stalks at the bottom are flattened, and the stalks that fall on the flat plate 711 slide back onto the conveyor belt 2 through the inclined surfaces on both sides.

[0031] The tiling mechanism includes a fixed shaft 705, a connecting frame 707, a second motor 708, and a second rotating shaft 709. The fixed shaft 705 is located at the end of the sliding block 704 away from the tiling plate 711. The connecting frame 707 is located on the side of the limiting plate 701. The second motor 708 is located inside the connecting frame 707. The second rotating shaft 709 is located at the output end of the second motor 708. A rotating rod 710 is located on the outer side of the second rotating shaft 709. The end of the rotating rod 710 away from the second motor 708 is rotatably connected to the outer side of the limiting plate 701. A power plate 706 is provided at the end of the moving rod 710 away from the second rotating shaft 709. The second motor 708 drives the second rotating shaft 709 to rotate, and the second rotating shaft 709 drives the rotating rod 710 to rotate. When the rotating rod 710 drives the power plate 706 to rotate to the vicinity of the fixed shaft 705, it squeezes the fixed shaft 705, thereby driving the sliding block 704 to slide on the limit through the fixed shaft 705. The rotating rod 710 continues to rotate, causing the power plate 706 to disengage from the fixed shaft 705. The sliding block 704 vibrates under the action of the spring 703.

[0032] A drying chamber 3 is provided on the top of the limiting plate 701, a microwave dryer 4 is provided on the top of the drying chamber 3, and a ventilation slot 5 is provided on the side of the drying chamber 3. The microwave dryer is used to heat and dry the inside of the drying chamber 3.

[0033] A motor 601 is installed on the side of the drying oven 3 away from the ventilation slot 5. A rotating shaft 602 is installed at the output end of the motor 601. An air blower 603 is installed at the end of the rotating shaft 602 away from the motor 601. When the motor 601 is started, the motor 601 drives the rotating shaft 602 to rotate, and the rotating shaft 602 drives the air blower 603 to rotate, generating airflow. The airflow is blown out from the ventilation slot 5, thereby maintaining air circulation inside the drying oven 3 and removing the dried moisture.

[0034] Example 2

[0035] like Figure 4 As shown, this utility model proposes a microwave drying box for ramie stalk pretreatment. Compared with Embodiment 1, this embodiment details the structure of the turning mechanism.

[0036] The material turning mechanism includes a third rotating shaft 801, a first synchronous pulley 802, and a material turning assembly. The third rotating shaft 801 is located at the end of the second motor 708 away from the second rotating shaft 709, and the first synchronous pulley 802 is located at the end of the third rotating shaft 801 away from the second motor 708. The material turning assembly is located on the side of the first synchronous pulley 802 and is used to turn the ramie stalks. The material turning assembly includes a second synchronous pulley 804, a connecting shaft 805, a rotating frame 806, and a material turning hopper 807. The second synchronous pulley is located at the end of the synchronous belt 803 away from the first synchronous pulley 802, the connecting shaft 805 is located at the axis of the second synchronous pulley, the rotating frame 806 is located on the outside of the connecting shaft 805, and the side of the rotating frame 806 is provided with a material turning hopper 807. The rotating frame 806 has three protruding ends, so there are a total of three material turning hoppers 807. The limiting plate 701... An arc-shaped baffle 808 is provided at the top. When the tipping hopper 807 rotates to the arc-shaped baffle 808, its end can fit against the inner side of the arc-shaped baffle 808. The second motor 708 drives the third rotating shaft 801 to rotate. The third rotating shaft 801 drives the first synchronous wheel 802 to rotate. The first synchronous wheel 802 drives the second synchronous wheel to rotate through the synchronous belt 803. The second synchronous wheel drives the tipping hopper 807 to rotate through the connecting shaft 805 and the rotating frame 806, thereby tipping the ramie stalks.

[0037] In summary, when using this utility model, starting motor 601 and motor 708, the ramie stalks are poured onto the conveyor belt 2. The conveyor belt 2 transports the ramie stalks forward. When the ramie stalks reach the flat plate 711, motor 708 drives shaft 709 to rotate. Shaft 709 drives rotating rod 710 to rotate. Rotating rod 710 drives power plate 706 to rotate near fixed shaft 705, pressing against fixed shaft 705. This causes sliding block 704 to slide at a limit position via fixed shaft 705. Rotating rod 710 continues to rotate, causing power plate 706 to disengage from fixed shaft 705. Sliding block 704 vibrates under the action of spring 703. During the vibration, flat plate 711 presses against the ramie stalks on conveyor belt 23. The ramie stalks are vibrated and spread out, then enter the drying chamber 3. The microwave dryer 4 dries the upper layer of ramie stalks. Motor 1 601 drives the air blower 603 to rotate via shaft 1 602, and the air containing moisture is discharged through the ventilation slot 5. Then the ramie stalks continue to be conveyed to the turning hopper 807. Motor 2 708 drives shaft 3 801 to rotate, which in turn drives synchronous wheel 1 802 to rotate. Synchronous wheel 1 802 drives synchronous wheel 2 to rotate via synchronous belt 803. Synchronous wheel 2 drives the turning hopper 807 to rotate via connecting shaft 805 and rotating frame 806, thereby turning the ramie stalks at the bottom to the top. The turned ramie stalks then enter the drying chamber 3 again for drying, achieving multi-stage continuous drying.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A microwave drying oven for pretreatment of ramie stalks, comprising a workbench (1) and a conveyor belt (2) disposed outside the workbench (1); characterized in that, Also includes: The basting mechanism is located on the side of the workbench (1) and is used to spread out the ramie stalks that are laid on the conveyor belt (2) so that the thickness of each material is the same. The turning mechanism is located on the side of the spreading mechanism and is used to turn over the ramie stalks after they have been dried once. And a flat plate (711), a sliding block (704) is provided at the end of the flat plate (711), a telescopic rod (702) is provided at the end of the sliding block (704), a spring (703) is provided on the outside of the telescopic rod (702), a limit plate (701) is provided at the end of the telescopic rod (702) away from the sliding block (704), the limit plate (701) is provided on the top of the workbench (1), and a groove is provided on the limit plate (701) for sliding connection with the sliding block (704) to ensure the stable sliding of the sliding block (704) on the limit plate (701). The bottom of the flat plate (711) is set as a plane, and the two sides are set as inclined surfaces. Under the drive of the flat plate mechanism, it shakes left and right. During the shaking process, the ramie stalks at the bottom are flattened, and the stalks falling on the flat plate (711) slide back onto the conveyor belt (2) through the inclined surfaces on both sides.

2. The microwave drying oven for ramie stalk pretreatment according to claim 1, characterized in that, The tiling mechanism includes a fixed shaft (705), a connecting frame (707), a second motor (708), and a second rotating shaft (709); A fixed shaft (705) is located at the end of the sliding block (704) away from the flat plate (711), a connecting frame (707) is located on the side of the limiting plate (701), a second motor (708) is located inside the connecting frame (707), a second rotating shaft (709) is located at the output end of the second motor (708), a rotating rod (710) is located on the outside of the second rotating shaft (709), the end of the rotating rod (710) away from the second motor (708) is rotatably connected to the outside of the limiting plate (701), and a power plate (706) is located on the end of the rotating rod (710) away from the second rotating shaft (709).

3. The microwave drying oven for ramie stalk pretreatment according to claim 1, characterized in that, A drying box (3) is provided on the top of the limiting plate (701), a microwave dryer (4) is provided on the top of the drying box (3), and a ventilation slot (5) is provided on the side of the drying box (3).

4. The microwave drying oven for ramie stalk pretreatment according to claim 3, characterized in that, A motor (601) is installed on the side of the drying oven (3) away from the ventilation slot (5). A rotating shaft (602) is installed at the output end of the motor (601). An air blower (603) is installed at the end of the rotating shaft (602) away from the motor (601).

5. The microwave drying oven for ramie stalk pretreatment according to claim 2, characterized in that, The material turning mechanism includes a rotating shaft three (801), a synchronous wheel one (802), and a material turning assembly; The third rotating shaft (801) is located at the end of the second motor (708) away from the second rotating shaft (709), and the first synchronous pulley (802) is located at the end of the third rotating shaft (801) away from the second motor (708); The turning component is located on the side of the synchronous wheel (802) and is used to turn the ramie stalks.

6. The microwave drying oven for ramie stalk pretreatment according to claim 5, characterized in that, The material tipping assembly includes a second synchronous wheel (804), a connecting shaft (805), a rotating frame (806), and a tipping hopper (807). Synchronous pulley 2 is located at the end of synchronous belt (803) away from synchronous pulley 1 (802), connecting shaft (805) is located at the axis of synchronous pulley 2, rotating frame (806) is located on the outside of connecting shaft (805), a tipping hopper (807) is provided on the side of rotating frame (806), and an arc-shaped baffle (808) is provided on the top of limiting plate (701).

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