Multi-stage roasting dryer

Abstract

The utility model discloses a multistage baking drying machine, specifically related to drying machine technical field, including the protective housing, the middle part of protective housing is provided with the rotary inner tube, and the both ends symmetrical of rotary inner tube are provided with the supporting plate, and the middle part outer surface of rotary inner tube is fixedly provided with the gear ring, and the both ends symmetrical of rotary inner tube are provided with the limit ring. The utility model first through starting motor control rotary inner tube rotation can be turned over to rotary inner tube internal material, and through the setting of the stirring plate and arc plate in the rotary inner tube interior can in the drying process, make stirring plate to material form the stirring effect, and the material is raised, dispersed, avoids material accumulation, enhances the contact area of material and hot air, improves drying efficiency, through a plurality of arc plate can reduce the rate of material to the discharge end one side movement, realizes continuous baking, strengthens the turning effect of material through the misplacement setting simultaneously, avoids local dead angle, improves the uniformity and quality effect of drying.

Description

Technical Field

[0001] This utility model relates to the field of drying technology, and more specifically, to a multi-stage baking dryer. Background Technology

[0002] In the process of agricultural product processing, baking and drying are key steps to improve product quality and extend shelf life. Traditional material drying methods often use ovens to dry materials. The materials to be dried are placed in the oven and heated so that the internal moisture evaporates. Usually, the materials are stationary in the oven. This type of drying method takes a relatively long time and is prone to uneven drying. While existing drum dryers have addressed the shortcomings of traditional drying methods, during the drying process, high-temperature gas is introduced from one side and moves the material to the other. The material is only agitated by its own gravity, and because the gas is introduced from one side to the other, some material may accumulate on the outlet side before being thoroughly dried. This results in some material not meeting the drying standards, affecting the uniformity of drying and making it inconvenient to reduce the material conveying rate during drying. Therefore, a multi-stage baking dryer is proposed. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage baking and drying machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage baking dryer, including a protective outer shell, a rotating inner tube disposed in the middle of the protective outer shell, and support plates symmetrically disposed at both ends of the rotating inner tube to support the rotating inner tube and improve its stability. A toothed ring is fixedly sleeved on the outer surface of the middle of the rotating inner tube, and limiting rings are symmetrically sleeved at both ends of the rotating inner tube. Multiple actuating plates and arc-shaped plates are fixedly connected to the middle of the rotating inner tube. The rotating inner tube drives the actuating plates and arc-shaped plates to rotate, which can stir and agitate the material inside the rotating inner tube, so that the material can fully contact the hot air and ensure uniform drying. A motor is fixedly connected to the top of the protective shell. A gear is connected to the output end of the motor. Starting the motor controls the gear to drive the gear ring to rotate, which can drive the inner tube to rotate. A discharge end and a feed end are fixedly inserted at both ends of the protective shell. An annular groove is opened at the opposite end of the discharge end and the feed end. A feed port is fixedly connected to one side of the top of the feed end. Through the cooperation of the limiting ring and the annular groove, the discharge end and the feed end can be connected to the two ends of the inner tube respectively without affecting the rotation of the inner tube. Raw materials can be easily injected into the feed end through the feed port. The bottom of the discharge end is fixedly connected to a discharge port, and the middle of the discharge port is provided with an opening and closing mechanism. The opening and closing of the discharge port can be controlled by activating the opening and closing mechanism, which facilitates material feeding control. A perforated baffle is fixedly connected to the middle of the discharge end. The perforated baffle can separate the material from the gas, which is convenient for screening. An exhaust pipe is fixedly connected to one side of the bottom of the discharge end, which facilitates exhaust. An air outlet plate is fixedly connected to one side of the feed end, and a support frame is fixedly connected to the bottom of the protective shell. An air pump box and a heating box are installed on the top of the support frame. A temperature sensor is installed on the output pipe of the heating box. When the air pump box is started, external gas is input into the heating box and heated by the heating box. Then, the gas is input into the air outlet plate through the pipe. The temperature sensor can detect the heat of the input gas, which is convenient for drying and heating.

[0005] Preferably, the gear is positioned directly above the gear ring and meshes with it. The support plate is fixed in the middle of the protective shell. The rotating inner tube is rotatably connected to the support plate via a rotating shaft. The motor is started to control the gear to drive the gear ring to rotate, which is convenient for driving. The support plate improves the rotational stability of the rotating inner tube.

[0006] Preferably, the limiting ring is adapted to the annular groove, the limiting ring is located in the middle of the annular groove, and a sealing ring is embedded on the outside of the limiting ring. The feed inlet is located on one side of the protective shell, and the exhaust pipe is located on the bottom side of the protective shell. By cooperating with the limiting ring and the annular groove, the discharge end and the feed end can be rotatably connected to the rotating inner tube. This ensures that the rotation of the rotating inner tube is not affected when the discharge end and the feed end are fixed, and the sealing effect is improved by the sealing ring.

[0007] Preferably, the bottom end of the discharge port penetrates the bottom wall of the protective shell, and the side wall of the discharge port near the exhaust pipe is in contact with the side wall of the porous baffle. The discharge port facilitates material discharge, and the porous baffle can block and screen materials at the same time.

[0008] Preferably, the output end of the air pump box is connected to the input end of the heating box, and the output end of the heating box is connected to the inner cavity of the air outlet plate through a pipe. A through hole is opened on one side of the air outlet plate, and the inner cavity of the air outlet plate is connected to the inner cavity of the feeding end through the through hole. The air pump box provides a stable airflow, and the heating box heats the airflow to generate hot air. The heating box adopts an electric heating method, and the heating power is adjustable to meet the temperature requirements of different baking stages. The heated gas is input into the air outlet plate and into the feeding end through the through hole to blow the material inside the feeding end into the interior of the rotating inner tube for drying.

[0009] Preferably, the multiple arc-shaped plates are staggered, with the inner arc surface of each plate facing the feed end. The array of actuating plates is fixed to the inner cavity of the rotating inner tube, and a control panel is provided on one side of the protective shell. The actuating plates, fixed to the inner cavity of the rotating inner tube, actuate the material as the inner tube rotates, lifting and dispersing the material to prevent accumulation, increase the contact area between the material and the hot air, and improve drying efficiency. The multiple arc-shaped plates can reduce the rate at which the material moves towards the discharge end, achieving continuous baking. At the same time, the staggered arrangement enhances the turning effect of the material, avoiding local dead corners. The control panel facilitates start-up control.

[0010] Preferably, the opening and closing mechanism includes a sealing plate inserted on one side of the discharge port. Three moving blocks are fixedly connected to the bottom of the sealing plate. An electric push rod is fixedly connected to one side of one of the moving blocks, and a stabilizing plate is inserted in the middle of the other two moving blocks. The stabilizing plate and the electric push rod are both fixed in the middle of the protective shell. Activating the electric push rod controls the moving blocks to drive the sealing plate to move, which can control the opening and closing of the discharge port. The stabilizing plate improves the stability of the movement of the moving blocks and the sealing plate.

[0011] The technical effects and advantages of this utility model are as follows: This invention first controls the rotation of the inner tube by starting a motor, which can turn over the material inside the inner tube. The agitator and arc-shaped plate set inside the inner tube can move the material during the drying process, lifting and dispersing the material, avoiding material accumulation, increasing the contact area between the material and the hot air, and improving drying efficiency. The multiple arc-shaped plates can reduce the rate at which the material moves towards the discharge end, realizing continuous baking. At the same time, the staggered arrangement enhances the turning effect of the material, avoids local dead corners, and improves the uniformity and quality of drying. This utility model also allows the discharge end and the feed end to be rotatably connected to the rotating inner tube by setting a limiting ring and an annular groove. A stable airflow is provided by an air pump box, and the heating box heats the airflow to generate hot air. The heating box adopts an electric heating method, and the heating power is adjustable to meet the temperature requirements of different baking stages. The heated gas is input into the air outlet plate and then into the feed end through the through hole to blow the material inside the feed end into the rotating inner tube for drying. By starting the electric push rod, the moving block is controlled to drive the sealing plate to move, which can control the opening and closing of the discharge port for convenient material feeding. In summary, through the interaction of the above-mentioned multiple effects, the dispersion of materials can be improved, the drying efficiency can be increased, the material movement rate can be reduced, the uniformity of drying can be improved, and multi-stage drying can be achieved by controlling the temperature of the input gas. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating inner tube of this utility model.

[0015] Figure 4 This is a cross-sectional structural diagram of the protective shell of this utility model.

[0016] Figure 5 This is a cross-sectional view of the protective shell, feed end, and discharge end of this utility model.

[0017] The attached diagram is labeled as follows: 1. Protective outer shell; 2. Rotating inner tube; 3. Gear ring; 4. Limiting ring; 5. Actuating plate; 6. Arc plate; 7. Support plate; 8. Gear; 9. Motor; 10. Discharge end; 11. Feed end; 12. Annular groove; 13. Feed inlet; 14. Perforated baffle; 15. Discharge outlet; 16. Exhaust pipe; 17. Air outlet plate; 18. Support frame; 19. Air pump box; 20. Temperature sensor; 21. Heating box; 22. Sealing plate; 23. Moving block; 24. Stabilizing plate; 25. Electric push rod; 26. Control panel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figure 1-3 The multi-stage baking dryer shown includes a protective outer shell 1, a rotating inner tube 2 in the middle of the protective outer shell 1, and support plates 7 symmetrically arranged at both ends of the rotating inner tube 2. The support plates 7 support the rotating inner tube 2 and improve its stability. A toothed ring 3 is fixedly sleeved on the outer surface of the middle of the rotating inner tube 2, and a limiting ring 4 is symmetrically sleeved at both ends of the rotating inner tube 2. Multiple actuating plates 5 and arc-shaped plates 6 are fixedly connected to the middle of the rotating inner tube 2. The rotating inner tube 2 drives the actuating plates 5 and arc-shaped plates 6 to rotate, which can stir and turn the material inside the rotating inner tube 2, so that the material can fully contact the hot air and ensure the uniformity of drying. A motor 9 is fixedly connected to the top of the protective shell 1. A gear 8 is connected to the output end of the motor 9. Starting the motor 9 controls the gear 8 to drive the gear ring 3 to rotate, which can drive the rotating inner tube 2 to rotate. A discharge end 10 and a feed end 11 are fixedly inserted at both ends of the protective shell 1, respectively. An annular groove 12 is opened at the opposite end of the discharge end 10 and the feed end 11. A feed port 13 is fixedly connected to one side of the top of the feed end 11. Through the cooperation of the limiting ring 4 and the annular groove 12, the discharge end 10 and the feed end 11 can be connected to the two ends of the rotating inner tube 2 respectively without affecting the rotation of the rotating inner tube 2. Raw materials can be conveniently injected into the feed end 11 through the feed port 13. The bottom of the discharge end 10 is fixedly connected to the discharge port 15. The middle of the discharge port 15 is provided with an opening and closing mechanism. The opening and closing of the discharge port 15 can be controlled by activating the opening and closing mechanism, which facilitates material feeding control. The middle of the discharge end 10 is fixedly connected to a perforated baffle 14. The perforated baffle 14 can separate the material from the gas, which is convenient for screening. The bottom side of the discharge end 10 is fixedly connected to an exhaust pipe 16, which facilitates exhaust. An air outlet plate 17 is fixedly connected to one side of the feed end 11, and a support frame 18 is fixedly connected to the bottom of the protective shell 1. An air pump box 19 and a heating box 21 are set on the top of the support frame 18. A temperature sensor 20 is set on the output pipe of the heating box 21. When the air pump box 19 is started, external gas is input into the heating box 21 and heated by the heating box 21. Then, the gas is input into the air outlet plate 17 through the pipe. The temperature sensor 20 can detect the heat of the input gas, which is convenient for drying and heating.

[0020] As attached Figure 1-4 As shown, gear 8 is positioned directly above gear ring 3 and meshes with gear ring 3. Support plate 7 is fixed in the middle of protective shell 1. Rotating inner tube 2 is rotatably connected to support plate 7 via a rotating shaft. Limiting ring 4 is adapted to annular groove 12 and is positioned in the middle of annular groove 12. A sealing ring is embedded on the outside of limiting ring 4. Inlet 13 is located on one side of protective shell 1. Exhaust pipe 16 is located on one side of bottom of protective shell 1. The bottom end of outlet 15 penetrates the bottom wall of protective shell 1. Outlet 15 is close to exhaust pipe 16. One side wall is attached to the other side wall of the porous baffle 14. The starting motor 9 controls the gear 8 to drive the gear ring 3 to rotate, which is convenient for driving. The support plate 7 improves the rotational stability of the rotating inner tube 2. The limit ring 4 and the annular groove 12 cooperate to rotatably connect the discharge end 10 and the feed end 11 to the rotating inner tube 2. When the discharge end 10 and the feed end 11 are fixed, the rotation of the rotating inner tube 2 is not affected. The sealing ring improves the sealing effect. The discharge port 15 facilitates material discharge. The porous baffle 14 can block and screen materials at the same time.

[0021] As attached Figure 1 , 2As shown in Figures 4 and 5, the output end of the air pump box 19 is connected to the input end of the heating box 21. The output end of the heating box 21 is connected to the inner cavity of the air outlet plate 17 through a pipe. A through hole is provided on one side of the air outlet plate 17, and the inner cavity of the air outlet plate 17 is connected to the inner cavity of the feed end 11 through the through hole. Multiple arc-shaped plates 6 are staggered with each other, and the arc-shaped inner surface of the arc-shaped plates 6 faces the side of the feed end 11. The array of actuating plates 5 is fixed in the inner cavity of the rotating inner tube 2. The air pump box 19 provides a stable airflow, and the heating box 21 heats the airflow to generate hot air. The heating box 21 adopts an electric heating method, and the heating power is adjustable to meet the temperature requirements of different baking stages. The heated gas... The material inside the air outlet plate 17 is blown into the inside of the feed end 11 through the through hole for drying. A control panel 26 is set on one side of the protective shell 1. The agitator plates 5 fixed in the inner cavity of the rotating inner tube 2 in an array form a agitator action on the material as the rotating inner tube 2 rotates, lifting and dispersing the material to avoid accumulation, increase the contact area between the material and the hot air, and improve drying efficiency. Multiple arc plates 6 can reduce the rate at which the material moves towards the discharge end 10, realizing continuous baking. At the same time, the staggered setting enhances the turning effect of the material and avoids local dead corners. The start-up can be easily controlled through the control panel 26.

[0022] As attached Figure 2 , 4 As shown in Figure 5, the opening and closing mechanism includes a sealing plate 22 inserted on one side of the discharge port 15. Three moving blocks 23 are fixedly connected to the bottom of the sealing plate 22. An electric push rod 25 is fixedly connected to one side of one of the moving blocks 23. A stabilizing plate 24 is inserted in the middle of the other two moving blocks 23. The stabilizing plate 24 and the electric push rod 25 are both fixed in the middle of the protective shell 1. Activating the electric push rod 25 controls the moving blocks 23 to drive the sealing plate 22 to move, which can control the opening and closing of the discharge port 15. The stabilizing plate 24 improves the stability of the movement of the moving blocks 23 and the sealing plate 22.

[0023] It is worth noting that the heating box 21 uses electric heating and the heating power is adjustable to meet the temperature requirements of different baking stages.

[0024] The working principle of this utility model is as follows: When in use, the material is poured into the inside of the feed end 11 through the feed port 13. The air pump box 19 is started to heat the external gas through the heating box 21 and then input it into the air outlet plate 17. The material inside the feed end 11 is blown into the inside of the rotating inner tube 2 through the through hole. At the same time, the motor 9 is started to control the gear 8 to drive the rotating inner tube 2 to rotate. The material is turned over by the agitator plate 5 and the arc plate 6. At the same time, the material is dried by combining with the gas. At the same time, the material is moved towards the discharge end 10. After a single drying cycle is completed, the temperature of the input gas is detected by the temperature sensor 20. The temperature of the secondary drying cycle is controlled by lowering the temperature of the input gas, thereby achieving continuous control of multiple drying cycles at different temperatures and improving the drying effect.

[0025] The porous baffle 14 can filter and block the material entering the discharge end 10, so that material debris can pass through the porous baffle 14 and prevent the small holes from falling into one end of the discharge end 10. After drying is complete, start the electric push rod 25 to control the movement of the sealing plate 22, which can open the discharge port 15 to facilitate the discharge of the dried material.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage baking and drying machine, including a protective outer shell (1), characterized in that: The protective outer shell (1) is provided with a rotating inner tube (2) in the middle. Support plates (7) are symmetrically provided at both ends of the rotating inner tube (2). A toothed ring (3) is fixedly sleeved on the outer surface of the middle part of the rotating inner tube (2). Limiting rings (4) are symmetrically sleeved at both ends of the rotating inner tube (2). Multiple actuating plates (5) and arc-shaped plates (6) are fixedly connected to the middle part of the rotating inner tube (2). A motor (9) is fixedly connected to the top of the protective shell (1). A gear (8) is connected to the output end of the motor (9). A discharge end (10) and a feed end (11) are fixedly inserted at both ends of the protective shell (1). An annular groove (12) is opened at the opposite end of the discharge end (10) and the feed end (11). A feed port (13) is fixedly connected to one side of the top of the feed end (11). The bottom of the discharge end (10) is fixedly connected to a discharge port (15), the middle of the discharge port (15) is provided with an opening and closing mechanism, the middle of the discharge end (10) is fixedly connected to a perforated baffle (14), and the bottom side of the discharge end (10) is fixedly connected to an exhaust pipe (16). An air outlet plate (17) is fixedly connected to one side of the feed end (11), a support frame (18) is fixedly connected to the bottom of the protective shell (1), an air pump box (19) and a heating box (21) are provided on the top of the support frame (18), and a temperature sensor (20) is provided on the output pipe of the heating box (21).

2. The multi-stage baking and drying machine according to claim 1, characterized in that: The gear (8) is positioned directly above the gear ring (3), and the gear (8) meshes with the gear ring (3). The support plate (7) is fixed in the middle of the protective shell (1), and the rotating inner tube (2) is rotatably connected to the support plate (7) via a rotating shaft.

3. The multi-stage baking and drying machine according to claim 1, characterized in that: The limiting ring (4) is adapted to the annular groove (12). The limiting ring (4) is located in the middle of the annular groove (12). A sealing ring is embedded on the outside of the limiting ring (4). The feed port (13) is located on one side of the protective shell (1). The exhaust pipe (16) is located on the bottom side of the protective shell (1).

4. The multi-stage baking and drying machine according to claim 1, characterized in that: The bottom end of the discharge port (15) penetrates the bottom wall of the protective shell (1), and the side wall of the discharge port (15) near the exhaust pipe (16) is in contact with the side wall of the porous baffle (14).

5. The multi-stage baking and drying machine according to claim 1, characterized in that: The output end of the air pump box (19) is connected to the input end of the heating box (21). The output end of the heating box (21) is connected to the inner cavity of the air outlet plate (17) through a pipe. A through hole is provided on one side of the air outlet plate (17). The inner cavity of the air outlet plate (17) is connected to the inner cavity of the feed end (11) through the through hole.

6. The multi-stage baking and drying machine according to claim 1, characterized in that: Multiple arc-shaped plates (6) are staggered with each other, and the arc-shaped inner surface of the arc-shaped plate (6) faces the feed end (11). The array of actuating plates (5) is fixed in the inner cavity of the rotating inner tube (2). A control panel (26) is provided on one side of the protective shell (1).

7. The multi-stage baking and drying machine according to claim 1, characterized in that: The opening and closing mechanism includes a sealing plate (22) inserted on one side of the discharge port (15). Three moving blocks (23) are fixedly connected to the bottom of the sealing plate (22). One of the moving blocks (23) is fixedly connected to one side of an electric push rod (25). The other two moving blocks (23) are fitted with a stabilizing plate (24) in the middle. The stabilizing plate (24) and the electric push rod (25) are both fixed in the middle of the protective shell (1).

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