A spiral hot air drying device

Abstract

The utility model relates to the hot -blast drying field especially relates to a spiral hot -blast drying device. Including bottom plate and base, the upper surface fixed connection of bottom plate has hot -blast warehouse, the upper surface fixed connection of base has spiral cylinder, one side fixed communication of hot -blast warehouse has the air -blower, one side mounting of air -blower has drive motor, the side fixed communication of air -blower away from drive motor has the air inlet pipe, the upper surface fixed connection of bottom plate has the support frame, the support frame is connected with drive motor fixedly, one side fixed communication of hot -blast warehouse away from air -blower has the air outlet pipe. The utility model provides a spiral hot -blast drying device solves prior art, often there is product drying area uneven, greatly reduces drying quality, and when using traditional method to butt joint or separate air -blower and drying cylinder, the operation is too complex, greatly reduces the equipment connection efficiency problem.

Description

Technical Field

[0001] This utility model relates to the field of hot air drying, and in particular to a spiral hot air drying device. Background Technology

[0002] Hot air drying is a drying method that uses a flow of hot air to evaporate moisture from the surface of a material. It is widely used in the food, chemical, and pharmaceutical industries, and is especially suitable for drying granular, powdered, or liquid materials.

[0003] Existing technologies, such as the utility model patent with publication number CN201615684U, disclose a spiral dryer. This patent includes a drying chamber, a spiral cylinder installed inside the drying chamber, a transmission device located below the drying chamber, a heating chamber, a heat insulation fan, and a hot air recovery mechanism located below the drying chamber. The front and rear ends of the drying chamber are respectively provided with an inlet and an outlet. This utility model spiral dryer features rapid heating, high thermal efficiency, good drying effect, compact and reasonable structure, lower power consumption than similar products, and energy saving.

[0004] The inventors discovered the following defects in the above content: when it is necessary to dry products, especially granular products, hot air drying is usually used. However, in the prior art, there are often problems such as uneven drying area, which greatly reduces the drying quality, and the operation of connecting or separating the blower and drying cylinder using traditional methods is too complicated, which greatly reduces the efficiency of equipment connection. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art, such as uneven drying area of ​​products, which greatly reduces drying quality, and the overly complicated operation of connecting or separating the blower and drying cylinder using traditional methods, which greatly reduces the efficiency of equipment connection.

[0006] To solve the above technical problems, this utility model provides a spiral hot air drying device, comprising: a base plate and a base; a hot air chamber is fixedly connected to the upper surface of the base plate; a spiral cylinder is fixedly connected to the upper surface of the base; a blower is fixedly connected to one side of the hot air chamber; a drive motor is installed on one side of the blower; an air inlet pipe is fixedly connected to the side of the blower away from the drive motor; a support frame is fixedly connected to the upper surface of the base plate; the support frame is fixedly connected to the drive motor; an air outlet pipe is fixedly connected to the side of the hot air chamber away from the blower; a discharge cylinder is fixedly connected to one side of the spiral cylinder; a connecting pipe is fixedly connected to the side of the spiral cylinder away from the discharge cylinder; a feed hopper is fixedly connected to the arc surface of the spiral cylinder; a spiral conveying paddle is installed on the inner wall of the spiral cylinder; and a servo motor for driving the propeller is installed on the arc surface of the spiral cylinder. The air inlet pipe has a connecting frame fixedly connected to the side away from the blower. A filter screen is installed on the inner wall of the connecting frame. The arc surface of the air outlet pipe is provided with a docking device. The docking device includes two fixed seats, both of which are fixedly connected to the air outlet pipe. Two side plates are fixedly connected to the side of the fixed seats away from the air outlet pipe. A rotating rod is rotatably connected to the side of the two side plates that are close to each other. The rotating rod completely penetrates the two side plates. Rod heads are fixedly connected to both ends of the rotating rod. A rotating plate is fixedly connected to the arc surface of the rotating rod. The air outlet pipe is inserted into the connecting pipe. The cross-section of the rotating plate is "L"-shaped. A pressing rod is threaded through the short arm end of the rotating plate. A round button is fixedly connected to one end of the pressing rod. The pressing rod abuts against the connecting pipe. A sealing ring is fixedly connected to the arc surface of the air outlet pipe. The sealing ring abuts against the inner wall of the connecting pipe.

[0007] The aforementioned components achieve the following effect: they enable the hot air drying process for the product. When it is necessary to connect or disconnect the spiral drum from the hot air blower, components such as the rotating plate and the extrusion rod can be used to quickly connect and disconnect the hot air blower from the spiral drum, greatly saving the time required for connection and separation, thereby accelerating the efficiency of the work.

[0008] Preferably, both ends of the rotating rod are fitted with coil springs, and the two ends of the coil springs are fixedly connected to the rod head and the side plate, respectively.

[0009] The effect achieved by the above components is that after the rotating plate is rotated, it can be automatically reset by the elastic force of the coil spring.

[0010] Preferably, the circular button has a plurality of anti-slip grooves on its arc surface, and the plurality of anti-slip grooves are evenly distributed on the arc surface of the circular button.

[0011] The effect achieved by the above components is that when the extrusion rod needs to be rotated, the anti-slip groove on the arc surface of the knob can increase the surface friction and prevent slippage when rotating the knob.

[0012] Preferably, an anti-wear pad, which is a rubber pad, is fixedly connected to the end of the extrusion rod away from the round button.

[0013] The effect achieved by the above-mentioned components is that when the extrusion rod is used to further compress and fix the connection between the air outlet pipe and the connecting pipe, the anti-wear pad can reduce the degree of wear between the extrusion rod and the connecting pipe.

[0014] Preferably, the inner wall of the connecting frame is provided with a cleaning device, which includes two sliding grooves. The two sliding grooves are respectively opened on both sides of the inner wall of the connecting frame. The inner walls of the two sliding grooves are fixedly connected to limit rods. The arc surface of the limit rods is slidably connected to connecting plates. The two connecting plates are fixedly connected to the same rectangular plate on their adjacent sides. A cleaning brush is fixedly connected to one side of the rectangular plate. The arc surface of the limit rods is fitted with a spring. The two ends of the springs are fixedly connected to the connecting plates and the inner walls of the sliding grooves, respectively.

[0015] The effect achieved by the above components is that when the blower is used for a long time to deliver air to the hot air chamber, the filter screen is easily clogged by dust or other impurities, causing the blower to fail to work. The filter screen can be cleaned regularly with a cleaning brush to ensure the normal operation of the blower.

[0016] Preferably, a handle is fixedly connected to the side of the rectangular plate away from the cleaning brush, and the cross-section of the handle is U-shaped.

[0017] The effect achieved by the above components is that when it is necessary to move the cleaning brush up and down, it can be operated with the help of the handle, thus making the operation simpler and more convenient.

[0018] Preferably, the inner wall of the connecting frame is provided with a slot, and a magnet is fixedly connected to the inner wall of the slot. The rectangular plate is an iron plate.

[0019] The effect achieved by the above components is that when the cleaning brush is not being used for cleaning, the rectangular plate can be attracted by magnets to temporarily store and fix the cleaning brush.

[0020] Compared with related technologies, the spiral hot air drying device provided by this utility model has the following beneficial effects: By operating the docking device, when the spiral drum and hot air blower need to be docked during the hot air drying process of the product, the connecting pipe and the air outlet pipe can be quickly docked with the help of the rotating plate and the extrusion rod. When separating, simply reverse the extrusion rod and the rotating plate to quickly separate them. Compared with the traditional flange docking, it greatly saves docking and separation time, thereby speeding up the work efficiency.

[0021] By operating the cleaning device, it is possible to clean the filter screen regularly with the help of a cleaning brush when the blower is used for a long time. This ensures the normal operation of the blower. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a spiral hot air drying device provided by this utility model; Figure 2 for Figure 1 The diagram shows a three-dimensional structural representation of the docking device. Figure 3 for Figure 1 A partial structural schematic diagram of the docking device is shown; Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the cleaning device. Figure 5 for Figure 4 The enlarged view at point A is shown below; Figure 6 for Figure 1 A partial structural diagram of the cleaning device shown.

[0023] Numbered components in the diagram: 1. Base plate; 2. Hot air chamber; 3. Base; 4. Spiral drum; 5. Discharge cylinder; 6. Docking device; 601. Fixed seat; 602. Side plate; 603. Rotating rod; 604. Rod head; 605. Coil spring; 606. Rotating plate; 607. Extrusion rod; 608. Round button; 609. Anti-slip groove; 610. Anti-wear pad; 611. Sealing ring; 7. Cleaning device; 71. Sliding groove; 72. Limiting rod; 73. Connecting plate; 74. Spring; 75. Rectangular plate; 76. Cleaning brush; 77. Handle; 78. Slot; 79. Magnet; 8. Blower; 9. Drive motor; 10. Support frame; 11. Air outlet pipe; 12. Connecting pipe; 13. Feed hopper; 14. Servo motor; 15. Air inlet pipe; 16. Connecting frame; 17. Filter screen. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 6This utility model provides a spiral hot air drying device, comprising: a base plate 1 and a base 3. A hot air chamber 2 is fixedly connected to the upper surface of the base plate 1, and a spiral cylinder 4 is fixedly connected to the upper surface of the base 3. A blower 8 is fixedly connected to one side of the hot air chamber 2, and a drive motor 9 is installed on one side of the blower 8. An air inlet pipe 15 is fixedly connected to the side of the blower 8 away from the drive motor 9. A support frame 10 is fixedly connected to the upper surface of the base plate 1, and the support frame 10 is fixedly connected to the drive motor 9. An air outlet pipe 15 is fixedly connected to the side of the hot air chamber 2 away from the blower 8. The air duct 11 has a discharge cylinder 5 fixedly connected to one side of the spiral cylinder 4, a connecting pipe 12 fixedly connected to the side of the spiral cylinder 4 away from the discharge cylinder 5, a feed hopper 13 fixedly connected to the arc surface of the spiral cylinder 4, a spiral conveyor paddle installed on the inner wall of the spiral cylinder 4, a servo motor 14 for driving the propeller installed on the arc surface of the spiral cylinder 4, a connecting frame 16 fixedly connected to the side of the air inlet duct 15 away from the blower 8, a filter screen 17 installed on the inner wall of the connecting frame 16, a docking device 6 provided on the arc surface of the air outlet duct 11, and a cleaning device 7 provided on the inner wall of the connecting frame 16.

[0027] In the embodiments of this utility model, please refer to Figures 1 to 3The docking device 6 includes two fixed seats 601, both of which are fixedly connected to the air outlet pipe 11. Two side plates 602 are fixedly connected to the side of the fixed seat 601 away from the air outlet pipe 11. A rotating rod 603 is rotatably connected to the side of the two side plates 602 that are close to each other. The rotating rod 603 completely penetrates the two side plates 602. Rod heads 604 are fixedly connected to both ends of the rotating rod 603. A rotating plate 606 is fixedly connected to the arc surface of the rotating rod 603. The air outlet pipe 11 is inserted into the connecting pipe 12. The cross-section of the rotating plate 606 is "L" shaped. A pressing rod 607 is threaded through the short arm end of the rotating plate 606. A round button 608 is fixedly connected to one end of the pressing rod 607. The pressing rod 607 abuts against the connecting pipe 12. A sealing ring 611 is fixedly connected to the arc surface of the air outlet pipe 11. The sealing ring 611 abuts against the inner wall of the connecting pipe 12. The process of hot air drying of the product is achieved. When it is necessary to connect or disconnect the spiral drum 4 from the hot air blower, the hot air blower and spiral drum 4 can be quickly connected and disconnected using components such as the rotating plate 606 and the extrusion rod 607, greatly saving connection and separation time and thus speeding up work efficiency. Both ends of the rotating rod 603 are fitted with coil springs 605, and the two ends of the coil springs 605 are fixedly connected to the rod head 604 and the side plate 602, respectively. This achieves the effect of automatically resetting the rotating plate 606 after rotation using the elastic force of the coil springs 605. The circular surface of the knob 608 has several anti-slip grooves 609, which are evenly distributed on the circular surface of the knob 608. This ensures that when the extrusion rod 607 needs to be rotated, the anti-slip grooves 609 on the circular surface of the knob 608 increase surface friction and prevent slippage when rotating the knob 608. An anti-wear pad 610, which is a rubber pad, is fixedly connected to the end of the extrusion rod 607 away from the round button 608. This ensures that when the extrusion rod 607 is used to further compress and fix the connection between the air outlet pipe 11 and the connecting pipe 12, the anti-wear pad 610 can reduce the degree of wear between the extrusion rod 607 and the connecting pipe 12.

[0028] In the embodiments of this utility model, please refer to Figure 4 and Figure 6The cleaning device 7 includes two sliding grooves 71, which are respectively opened on both sides of the inner wall of the connecting frame 16. Limiting rods 72 are fixedly connected to the inner walls of both sliding grooves 71. Connecting plates 73 are slidably connected to the arc surfaces of the limiting rods 72. A rectangular plate 75 is fixedly connected to the side of the two connecting plates 73 closest to each other. A cleaning brush 76 is fixedly connected to one side of the rectangular plate 75. A spring 74 is fitted onto the arc surface of the limiting rods 72, and both ends of the spring 74 are fixedly connected to the connecting plate 73 and the inner wall of the sliding grooves 71, respectively. This device addresses the issue that when the blower 8 supplies air to the hot air chamber 2 for an extended period, the filter 17 is easily clogged by dust or other impurities, causing the blower 8 to malfunction. The cleaning brush 76 can be used to clean the filter 17 periodically, ensuring the normal operation of the blower 8. A handle 77 is fixedly connected to the side of the rectangular plate 75 away from the cleaning brush 76. The handle 77 has a U-shaped cross-section. The design allows for easy and convenient operation by using the handle 77 when the cleaning brush 76 needs to be moved up and down. The inner wall of the connecting frame 16 has a slot 78, and a magnet 79 is fixedly connected to the inner wall of the slot 78. The rectangular plate 75 is made of iron. This design allows the rectangular plate 75 to be attracted and temporarily stored in place when the cleaning brush 76 is not in use.

[0029] The working principle of the spiral hot air drying device provided by this utility model is as follows: When it is necessary to connect the spiral cylinder 4 and the hot air chamber 2 through the connecting pipe 12 and the air outlet pipe 11, the operator first inserts the end of the air outlet pipe 11 into the port of the connecting pipe 12, so that the sealing ring 611 on the arc surface of the air outlet pipe 11 is tightly fitted with the inner wall of the connecting pipe 12 to form a preliminary seal. Then, the rotating plate 606 is turned, and the rotating plate 606 drives the rotating rod 603 to rotate between the two side plates 602. The coil springs 605 at both ends of the rotating rod 603 undergo elastic torsion as the rotating rod 603 rotates and generates an elastic force opposite to the rotation of the rotating rod 603. When the L-shaped long arm end of the rotating plate 606 rotates to the horizontal position, its short arm end is exactly located outside the connecting pipe 12. At this time, rotating the knob 608 causes the pressing rod 607 to rotate. Due to the threaded engagement between the pressing rod 607 and the short arm of the rotating plate 606, the rotational motion of the pressing rod 607 is converted into its linear movement, propelling it towards the surface of the connecting tube 12. The anti-wear pad 610 at the end of the pressing rod 607 undergoes elastic deformation upon contact with the surface of the connecting tube 12, evenly distributing the force applied by the pressing rod 607 to the outer wall of the connecting tube 12, thus enhancing the clamping effect and preventing localized wear. During the rotation of the knob 608, the anti-slip groove 609 on the arc surface of the knob 608 increases the friction between the fingers and the surface of the knob 608, ensuring that slippage does not occur when rotating the knob 608. After successful docking, the drive motor 9 is started, and the blower 8 delivers outside air to the hot air chamber 2. The hot air chamber 2 heats the incoming air, which then enters the spiral drum 4 through the outlet pipe 11 and the connecting pipe 12. At this time, the servo motor 14 is started to make the spiral conveyor paddle in the spiral drum 4 start rotating, feeding the product into the spiral drum 4 through the feed hopper 13. The product is heated and dried in the spiral drum 4 by the hot air, and then leaves the spiral drum 4 through the discharge pipe 5, completing the drying process. When it is necessary to separate the pipes, the knob 608 is rotated in the opposite direction to release the pressure of the extrusion rod 607 on the connecting pipe 12. The coil springs 605 at both ends of the rotating rod 603 release their elasticity, driving the rotating rod 603 to rotate automatically. The rotating rod 603 drives the rotating plate 606 to return to the initial position, thereby releasing the constraint on the connecting pipe 12. Then, the connecting pipe 12 and the outlet pipe 11 can be separated. The rotation of the rotating plate 606 enables the positioning and disengagement of the docking structure, the linear movement of the pressing rod 607 generates radial clamping force, the elastic recovery of the coil spring 605 enables automatic reset, and the buffering effect of the anti-wear pad 610 protects the contact surface. Ultimately, the air outlet pipe 11 and the connecting pipe 12 are quickly docked and separated, which significantly improves the efficiency and reliability of the equipment connection operation.

[0030] When dust accumulates on the surface of filter 17, affecting the normal air intake of blower 8, the operator separates rectangular plate 75 from magnet 79 in slot 78. Then, using handle 77, the operator moves rectangular plate 75 up and down. Rectangular plate 75 slides on limiting rod 72 via connecting plates 73 on both sides. At this time, spring 74 on limiting rod 72 is stretched by connecting plates 73, generating a spring force opposite to the direction of rectangular plate 75's movement. During the up-and-down movement of rectangular plate 75, the operator continuously controls its trajectory using handle 77, causing cleaning brush 76 to repeatedly scrape the surface of filter 17, removing dust particles adhering to the pores of filter 17. During cleaning, spring 74 continuously stretches and compresses as connecting plates 73 move up and down. After cleaning, handle 77 is released, and the spring force of spring 74 pulls rectangular plate 75 and cleaning brush 76 upwards. When rectangular plate 75 contacts magnet 79, they attract each other, thus securing cleaning brush 76. During the process, the displacement of the rectangular plate 75 is controlled by the traction of the handle 77, the movement trajectory is maintained by the cooperation of the connecting plate 73 and the limit rod 72, and the dust on the surface of the filter screen 17 is removed by the scraping action of the cleaning brush 76, so as to effectively maintain the unobstructed flow of the filter screen 17 and ensure that the blower 8 continuously and stably delivers air to the hot air chamber 2.

[0031] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spiral hot air drying device, characterized in that, include: A base plate (1) and a base (3) are provided. A hot air chamber (2) is fixedly connected to the upper surface of the base plate (1). A spiral cylinder (4) is fixedly connected to the upper surface of the base (3). A blower (8) is fixedly connected to one side of the hot air chamber (2). A drive motor (9) is installed on one side of the blower (8). An air inlet pipe (15) is fixedly connected to the side of the blower (8) away from the drive motor (9). A support frame (10) is fixedly connected to the upper surface of the base plate (1). The support frame (10) is fixedly connected to the drive motor (9). The hot air chamber (2) is located away from the blower. (8) has an air outlet pipe (11) fixedly connected to one side, and a discharge cylinder (5) fixedly connected to one side of the spiral cylinder (4). A connecting pipe (12) is fixedly connected to the side of the spiral cylinder (4) away from the discharge cylinder (5). A feed hopper (13) is fixedly connected to the arc surface of the spiral cylinder (4). A spiral conveying paddle is installed on the inner wall of the spiral cylinder (4). A servo motor (14) for driving the propeller is installed on the arc surface of the spiral cylinder (4). A connecting frame (16) is fixedly connected to the side of the air inlet pipe (15) away from the blower (8). The inner wall of the connecting frame (16) is... A filter screen (17) is installed on the wall. A docking device (6) is provided on the arc surface of the air outlet pipe (11). The docking device (6) includes two fixed seats (601). Both fixed seats (601) are fixedly connected to the air outlet pipe (11). Two side plates (602) are fixedly connected to the side of the fixed seat (601) away from the air outlet pipe (11). A rotating rod (603) is rotatably connected to the side of the two side plates (602) that are close to each other. The rotating rod (603) completely penetrates the two side plates (602). Rod heads (603) are fixedly connected to both ends of the rotating rod (603). 04), the rotating rod (603) is fixedly connected to the arc surface of the rotating plate (606), the air outlet pipe (11) is inserted into the connecting pipe (12), the cross-section of the rotating plate (606) is "L" shaped, the short arm end of the rotating plate (606) is threaded through the extrusion rod (607), one end of the extrusion rod (607) is fixedly connected to the round button (608), the extrusion rod (607) abuts against the connecting pipe (12), the arc surface of the air outlet pipe (11) is fixedly connected to the sealing ring (611), and the sealing ring (611) abuts against the inner wall of the connecting pipe (12).

2. The spiral hot air drying device according to claim 1, characterized in that, Both ends of the rotating rod (603) are fitted with coil springs (605), and the two ends of the coil springs (605) are fixedly connected to the rod head (604) and the side plate (602) respectively.

3. The spiral hot air drying device according to claim 1, characterized in that, The circular button (608) has a plurality of anti-slip grooves (609) on its arc surface, and the plurality of anti-slip grooves (609) are evenly distributed on the arc surface of the circular button (608).

4. The spiral hot air drying device according to claim 1, characterized in that, The end of the extrusion rod (607) away from the round button (608) is fixedly connected to an anti-wear pad (610), which is a rubber pad.

5. The spiral hot air drying device according to claim 1, characterized in that, The inner wall of the connecting frame (16) is provided with a cleaning device (7). The cleaning device (7) includes two sliding grooves (71). The two sliding grooves (71) are respectively opened on both sides of the inner wall of the connecting frame (16). The inner walls of the two sliding grooves (71) are fixedly connected with limit rods (72). The arc surface of the limit rods (72) is slidably connected with connecting plates (73). The two connecting plates (73) are fixedly connected to the same rectangular plate (75) on the side close to each other. A cleaning brush (76) is fixedly connected to one side of the rectangular plate (75). The arc surface of the limit rods (72) is fitted with a spring (74). The two ends of the spring (74) are fixedly connected to the inner walls of the connecting plate (73) and the sliding grooves (71) respectively.

6. The spiral hot air drying device according to claim 5, characterized in that, A handle (77) is fixedly connected to the side of the rectangular plate (75) away from the cleaning brush (76), and the cross-section of the handle (77) is "U" shaped.

7. A spiral hot air drying device according to claim 5, characterized in that, The inner wall of the connecting frame (16) is provided with a slot (78), and a magnet (79) is fixedly connected to the inner wall of the slot (78). The rectangular plate (75) is an iron plate.

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