Spiral material guide device for preheating of rotary kiln

Abstract

The utility model relates to the technical field of rotary kiln auxiliary equipment, and discloses a rotary kiln preheating spiral material guiding device which comprises a bottom plate, one side of the bottom plate is fixedly connected with a buffering assembly, one side of the buffering assembly is fixedly connected with a heating assembly, one end of the heating assembly is fixedly connected with a discharging assembly, and the other end of the discharging assembly is fixedly connected with a discharging pipe. The end, away from the discharging assembly, of the heating assembly is fixedly connected with a feeding assembly, the discharging assembly comprises a first sealing ring, the first sealing ring is fixedly connected with a first sealing plate, the inner surface of the first sealing plate is in threaded connection with a cover plate, one side of the cover plate is fixedly connected with a handle, and the feeding assembly comprises a second sealing ring. And one side of the second closed ring is fixedly connected with a funnel. In the prior art, the defects that an existing material conveying device cannot preheat materials in the conveying process, the materials are heated unevenly in the conveying process, and the follow-up calcination effect is affected exist.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary kiln auxiliary equipment, and in particular to a spiral feeding device for preheating a rotary kiln. Background Technology

[0002] Rotary kilns are rotary calcining kilns, belonging to the category of building materials equipment. Based on the materials they process, rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns. Cement kilns are mainly used for calcining cement clinker, and are divided into two main categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetizing and roasting lean iron ore in steel plants; oxidizing and roasting chromium and nickel iron ore; roasting high-alumina vanadium ore in refractory material plants and roasting clinker and aluminum hydroxide in aluminum plants; and roasting chromite sand and chromite powder in chemical plants. Lime kilns are used for roasting active lime and lightly calcined dolomite for steel plants and ferroalloy plants.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: materials are usually directly fed into the rotary kiln. Since the initial temperature of the materials is low, the rotary kiln needs to consume a lot of energy to heat the materials to the required temperature, resulting in energy waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing material conveying device cannot preheat the material during the conveying process, and the material is not heated evenly during the conveying process, which affects the subsequent calcination effect. To this end, we propose a spiral material guiding device for preheating rotary kilns.

[0005] To achieve the above objectives, this application adopts the following technical solution: a spiral feeding device for preheating a rotary kiln, comprising a base plate, a buffer assembly fixedly connected to one side of the base plate, a heating assembly fixedly connected to one side of the buffer assembly, a discharge assembly fixedly connected to one end of the heating assembly, and a feeding assembly fixedly connected to the end of the heating assembly away from the discharge assembly. The discharge assembly includes a first sealing ring, a first sealing plate fixedly connected to the first sealing ring, a cover plate threadedly connected to the inner surface of the first sealing plate, and a handle fixedly connected to one side of the cover plate.

[0006] Preferably, the feeding assembly includes a second closed ring, a funnel is fixedly connected to one side of the second closed ring, and a protective cover is fixedly connected to one side of the second closed ring.

[0007] Preferably, a fixing plate is fixedly connected to one side of the second closed ring, a motor is fixedly connected to one side of the fixing plate, a spiral shaft is fixedly connected to the output end of the motor, spiral blades are fixedly connected to the arc surface of the spiral shaft, and a bracket is rotatably connected to the arc surface of the spiral shaft.

[0008] Preferably, a heating cylinder is fixedly connected to one side of the bracket, and multiple partitions are fixedly connected to the arc surface of the heating cylinder.

[0009] Preferably, four repeaters are fixedly connected to the arc surface of the heating cylinder, and multiple heating wires are fixedly connected to the adjacent surfaces of the four repeaters. A shell is fixedly connected to one side of the partition.

[0010] Preferably, the buffer assembly includes multiple bases, one side of each base is fixedly connected to a base plate, three springs are fixedly connected to one side of each base, a first connecting block is fixedly connected to one side of each spring, and one side of the first connecting block is fixedly connected to the outer shell.

[0011] Preferably, a plurality of buckles are fixedly connected to one side of the base plate, and a fixing pin is inserted through the inner surface of each of the plurality of buckles. A telescopic rod is inserted through the arc surface of the fixing pin, and a second connecting block is fixedly connected to one end of the telescopic rod. One side of the second connecting block is fixedly connected to the outer shell.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the buffer component reduces operating vibration and improves stability; the heating component, in conjunction with the screw feeder, ensures uniform heating of the material; the feeding and discharging components are designed for easy operation and have good sealing; the overall structure is stable, highly adaptable, and can efficiently complete preheating and feeding, reducing energy consumption and improving production efficiency. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the spiral shaft in this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the heating wire in this utility model;

[0019] Figure 5 This is a partially enlarged structural schematic diagram of the present invention.

[0020] Legend: 1. Base plate; 2. Buffer assembly; 3. Heating assembly; 4. Discharge assembly; 5. Feeding assembly; 6. First sealing ring; 7. First sealing plate; 8. Cover plate; 9. Handle; 10. Second sealing ring; 11. Funnel; 12. Protective cover; 13. Fixing plate; 14. Motor; 15. Spiral blade; 16. Spiral shaft; 17. Heating cylinder; 18. Partition plate; 19. Repeater; 20. Heating wire; 21. Base; 22. Spring; 23. First connecting block; 24. Buckle; 25. Fixing pin; 26. Telescopic rod; 27. Second connecting block; 28. Outer shell; 29. ​​Bracket. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Reference Figures 1-5 As shown, this utility model provides a technical solution: a spiral feeding device for preheating a rotary kiln, including a base plate 1, a buffer assembly 2 fixedly connected to one side of the base plate 1, a heating assembly 3 fixedly connected to one side of the buffer assembly 2, a discharge assembly 4 fixedly connected to one end of the heating assembly 3, and a feeding assembly 5 fixedly connected to the end of the heating assembly 3 away from the discharge assembly 4. The discharge assembly 4 includes a first sealing ring 6, a first sealing plate 7 fixedly connected to the first sealing ring 6, a cover plate 8 threadedly connected to the inner surface of the first sealing plate 7, and a handle 9 fixedly connected to one side of the cover plate 8. The base plate 1 provides stable support, the buffer assembly 2 reduces operating vibration, the heating assembly 3 cooperates with the spiral assembly to achieve material preheating and conveying, the threaded cover plate 8 and handle 9 of the discharge assembly 4 facilitate opening, closing and sealing, and the feeding assembly 5 ensures smooth feeding, thus improving the overall stability and ease of operation of the device.

[0023] Reference Figure 3 As shown in this embodiment: the feeding assembly 5 includes a second sealing ring 10, a funnel 11 is fixedly connected to one side of the second sealing ring 10, and a protective cover 12 is fixedly connected to one side of the second sealing ring 10. The second sealing ring 10 of the feeding assembly 5 enhances the sealing performance, and the funnel 11 enlarges the feed inlet to facilitate feeding and reduce material spillage.

[0024] Reference Figure 2As shown in this embodiment: a fixing plate 13 is fixedly connected to one side of the second closed ring 10, a motor 14 is fixedly connected to one side of the fixing plate 13, a spiral shaft 16 is fixedly connected to the output end of the motor 14, a spiral blade 15 is fixedly connected to the arc surface of the spiral shaft 16, a bracket 29 is rotatably connected to the arc surface of the spiral shaft 16, the fixing plate 13 securely mounts the motor 14, the motor 14 drives the spiral shaft 16 and the spiral blade 15 to rotate, realizing stable material conveying, the spiral shaft 16 is rotatably connected to the bracket 29 to ensure smooth operation, improve the reliability and efficiency of spiral feeding, and ensure uniform material conveying.

[0025] Reference Figure 2 As shown in this embodiment: a heating cylinder 17 is fixedly connected to one side of the bracket 29, and multiple partitions 18 are fixedly connected to the arc surface of the heating cylinder 17. The bracket 29 provides stable support for the heating cylinder 17, enhancing the overall structural stability. The multiple partitions 18 on the arc surface of the heating cylinder 17 can separate the heating area, making the heat distribution more uniform, avoiding local overheating, effectively improving the preheating effect of the material, and ensuring the quality of subsequent processing.

[0026] Reference Figure 4 As shown in this embodiment: four repeaters 19 are fixedly connected to the arc surface of the heating cylinder 17, and multiple heating wires 20 are fixedly connected to the adjacent surfaces of the four repeaters 19. A shell 28 is fixedly connected to one side of the partition 18. The four repeaters 19 connect to multiple heating wires 20, making the heating more uniform and improving the thermal efficiency. The shell 28 encloses the heating component 3, reducing heat loss to save energy, and at the same time preventing the operator from being burned by high temperature, thus improving the safety of operation.

[0027] Reference Figure 5 As shown in this embodiment: the buffer assembly 2 includes multiple bases 21, one side of each base 21 is fixedly connected to the base plate 1, and three springs 22 are fixedly connected to one side of each base 21. A first connecting block 23 is fixedly connected to one side of each spring 22, and one side of the first connecting block 23 is fixedly connected to the outer shell 28. The multiple bases 21 and springs 22 in the buffer assembly 2 cooperate to effectively absorb the vibration during the operation of the device and reduce the wear of components.

[0028] Reference Figure 5 As shown in this embodiment: multiple sets of buckles 24 are fixedly connected to one side of the base plate 1. Each set of buckles 24 has a fixing pin 25 inserted through its inner surface. A telescopic rod 26 is inserted through the arc surface of the fixing pin 25. A second connecting block 27 is fixedly connected to one end of the telescopic rod 26. One side of the second connecting block 27 is fixedly connected to the outer shell 28. The buckles 24 and fixing pins 25 of the base plate 1 cooperate to fix the telescopic rod 26. The telescopic rod 26 supports the outer shell 28 through the second connecting block 27. The support angle and force can be flexibly adjusted to enhance the adaptability of the device to different working conditions and further improve the stability of the overall structure.

[0029] Working principle: When the device is working, the material enters from the funnel 11 of the feeding component 5, passes through the second closed ring 10 and enters the heating cylinder 17. The motor 14 is fixed by the fixing plate 13, and its output end drives the spiral shaft 16 to rotate. The spiral blades 15 rotate with the spiral shaft 16, pushing the material along the heating cylinder 17 to the discharge component 4. The bracket 29 ensures the stable operation of the spiral shaft 16. In the heating component 3, four repeaters 19 connect multiple heating wires 20. After being powered on, the heating wires 20 heat up, and the heat is transferred to the material inside the heating cylinder 17. The partition 18 outside the heating cylinder 17 separates the heating area, making the heat distribution more uniform. The outer shell 28 reduces heat loss. The spring 22 and the telescopic rod 26 of the buffer component 2 work together to absorb the vibration during the operation of the device. The buckle 24 and the fixing pin 25 fix the position of the telescopic rod 26 to enhance the overall stability. After the material reaches the discharge component 4, the cover plate 8 can be unscrewed by the handle 9, and the material enters the rotary kiln through the first sealing plate 7 and the first closed ring 6 to complete the preheating and conveying process.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A rotary kiln preheating screw feed device characterized by, The device includes a base plate (1), a buffer assembly (2) is fixedly connected to one side of the base plate (1), a heating assembly (3) is fixedly connected to one side of the buffer assembly (2), a discharge assembly (4) is fixedly connected to one end of the heating assembly (3), and a feeding assembly (5) is fixedly connected to the end of the heating assembly (3) away from the discharge assembly (4). The discharge assembly (4) includes a first sealing ring (6), a first sealing plate (7) is fixedly connected to the first sealing ring (6), a cover plate (8) is threadedly connected to the inner surface of the first sealing plate (7), and a handle (9) is fixedly connected to one side of the cover plate (8).

2. A preheating screw feed for a rotary kiln according to claim 1, characterized in that: The feeding assembly (5) includes a second closed ring (10), a funnel (11) is fixedly connected to one side of the second closed ring (10), and a protective cover (12) is fixedly connected to one side of the second closed ring (10).

3. A preheating screw feed for a rotary kiln according to claim 2, characterized in that: A fixing plate (13) is fixedly connected to one side of the second closed ring (10), and a motor (14) is fixedly connected to one side of the fixing plate (13). A spiral shaft (16) is fixedly connected to the output end of the motor (14), and a spiral blade (15) is fixedly connected to the arc surface of the spiral shaft (16). A bracket (29) is rotatably connected to the arc surface of the spiral shaft (16).

4. A preheating screw feed for a rotary kiln according to claim 3, characterized in that: A heating cylinder (17) is fixedly connected to one side of the bracket (29), and multiple partitions (18) are fixedly connected to the arc surface of the heating cylinder (17).

5. A preheating screw feed for a rotary kiln according to claim 4, characterized in that: Four repeaters (19) are fixedly connected to the arc surface of the heating cylinder (17), and multiple heating wires (20) are fixedly connected to the adjacent surfaces of the four repeaters (19). A shell (28) is fixedly connected to one side of the partition (18).

6. The spiral feeding device for preheating a rotary kiln according to claim 1, characterized in that: The buffer assembly (2) includes multiple bases (21), one side of each base (21) is fixedly connected to the base plate (1), and three springs (22) are fixedly connected to one side of each base (21). A first connecting block (23) is fixedly connected to one side of each spring (22), and one side of the first connecting block (23) is fixedly connected to the outer shell (28).

7. A preheating screw feed for a rotary kiln according to claim 1, characterized in that: Multiple sets of buckles (24) are fixedly connected to one side of the base plate (1). The inner surfaces of the multiple sets of buckles (24) are all connected with fixing pins (25). The arc surface of the fixing pins (25) is connected with telescopic rods (26). One end of the telescopic rods (26) is fixedly connected with a second connecting block (27). One side of the second connecting block (27) is fixedly connected to the outer shell (28).

Images