Electromagnetic heating rotary kiln

Abstract

The utility model discloses an electromagnetic heating rotary kiln which comprises kiln cylinder splicing pieces, each kiln cylinder splicing piece comprises an iron core cylinder, a coil and splicing flanges, the coils are wound outside the iron core cylinders, the splicing flanges are arranged at the left end and the right end of the iron core cylinders, at least two kiln cylinder splicing pieces are distributed in the axial direction, and the adjacent splicing flanges are fixedly connected in an attached mode. The adjacent iron core cylinders are aligned and communicated; and the motor drives the kiln barrel splicing piece to rotate. The heating kiln channel of the rotary kiln is formed by splicing, so that the manufacturing flexibility of the electromagnetic heating rotary kiln is improved; the rotary kiln is high in use safety and high in material heating efficiency.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to an electromagnetically heated rotary kiln. Background Art

[0002] At present, the rotary kiln has a cylindrical structure, and the angle between the cylindrical structure and the horizontal plane is usually 1° to 5°. The material is input into one end of the rotary kiln. As the rotary kiln slowly rotates around the axis of its cylindrical structure, the material slowly moves in a spiral motion to the other end of the rotary kiln due to gravity and is discharged. During this period, the rotary kiln is heated up to dry the material. The prior art usually adopts an integrated cylindrical structure. The factory customizes the axial length of the cylinder of each set of rotary kiln equipment according to customer needs. However, this will result in a long processing cycle, and if the customer cancels the order temporarily, it will cause huge losses to the rotary kiln manufacturer, because the rotary kiln with customized length is not suitable for other customers. Therefore, the manufacturing flexibility of the rotary kiln in the prior art is not good, and it is necessary to improve it. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide an electromagnetically heated rotary kiln with good manufacturing flexibility.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The utility model discloses an electromagnetically heated rotary kiln, comprising a kiln barrel assembly, wherein the kiln barrel assembly comprises an iron core barrel, a coil and a splicing flange, wherein the coil is wound around the outside of the iron core barrel, the splicing flange is arranged at the left and right ends of the iron core barrel, at least two of the kiln barrel assemblies are distributed along the axial direction, adjacent splicing flanges are abutted and fixedly connected, and adjacent iron core barrels are aligned and connected; and a motor is also included, wherein the motor drives the kiln barrel assembly to rotate.

[0006] Preferably, a bolt mounting hole is formed on the splicing flange, a bolt is arranged in the bolt mounting hole, adjacent splicing flanges are fixedly connected by corresponding bolts, and a positioning dovetail notch is formed on the splicing flange; it also includes a dovetail insert, which is adapted to pass through the positioning dovetail notch on the adjacent splicing flange.

[0007] Preferably, the kiln tube assembly includes angle brackets and busbar stays, both ends of the busbar stays are fixedly connected to the corresponding splicing flanges through the corresponding angle brackets, and the busbar stays are arranged around the outside of the core tube.

[0008] Preferably, the rotary kiln of the utility model also includes a bracket assembly, which includes a base and an adjustment seat, one end of the adjustment seat is hinged to one end of the base, the other end corresponding to the base is hinged with a lower swing arm, the other end corresponding to the adjustment seat is hinged with an upper swing arm, the upper swing arm and the lower swing arm are connected by a left-right rotating double-head screw, the kiln barrel assembly is rotatably set on the adjustment seat, and the motor is installed on the adjustment seat.

[0009] Preferably, a hexagonal neck is formed in the middle portion of the left-right double-head screw.

[0010] Compared with the prior art, the utility model has the following beneficial effects: by arranging a kiln barrel assembly including an iron core barrel, a coil and a splicing flange, the coil is wound around the outside of the iron core barrel, the splicing flange is arranged at the left and right ends of the iron core barrel, at least two kiln barrel assemblies are distributed along the axial direction, adjacent splicing flanges are abutted and fixedly connected, and adjacent iron core barrels are aligned and connected, so that the heating kiln channel of the rotary kiln of the utility model is spliced, which is beneficial to improving the manufacturing flexibility of the electromagnetically heated rotary kiln of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the rotary kiln of the utility model.

[0012] Figure 2 It is a schematic diagram of the radial cross-sectional structure of the kiln tube assembly of the utility model.

[0013] Figure 3 It is a schematic diagram of the axial cross-sectional structure of the kiln tube assembly of the utility model.

[0014] Figure 4 for Figure 1 Schematic diagram of the local structure at point A.

[0015] Figure 5 It is a schematic diagram of the axial structure of the feed pipe and the supporting wheel group combined with the utility model.

[0016] Figure 6 It is a structural schematic diagram of the left-right rotating double-head screw of the utility model.

[0017] Explanation of reference numerals: kiln barrel assembly 1; core barrel 11; turning hook plate 111; coil 12; splicing flange 13; bolt mounting hole 1301; positioning dovetail notch 1302; angle code 14; busbar support bar 15; feed pipe 2; motor 3; transmission belt 4; support wheel set 5; electrical connection assembly 6; brush 61; copper ring 62; brush bracket 63; bracket assembly 7; base 71; lower swing arm 711; adjustment seat 72; upper swing arm 721; left-right rotating double-head screw 73; hexagonal neck 731; discharge pipe 8; discharge pipe flange 81; discharge pipe ring groove 801; dovetail insert 9. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] The electromagnetically heated rotary kiln of the utility model is as follows Figure 1 As shown, it includes a kiln tube assembly 1, such as Figure 2 and Figure 3 As shown, the kiln tube assembly 1 includes an iron core tube 11, a coil 12 and a splicing flange 13. The iron core tube 11 is cylindrical, the coil 12 is wound around the outside of the iron core tube 11, and the splicing flange 13 is arranged at the left and right ends of the iron core tube 11. That is, each kiln tube assembly 1 has two splicing flanges 13, and the splicing flanges 13 can be square or round. Figure 1 As shown, at least two kiln tube components 1 are distributed along the axial direction (i.e., along the axial direction of the core tube 11). Figure 1 An example is given in which there are three kiln barrel assemblies 1, and adjacent splicing flanges 13 are fixedly connected, that is, at least one splicing flange 13 of the kiln barrel assemblies 1 is connected to a splicing flange 13 of an adjacent kiln barrel assemblies 1, and adjacent iron core barrels 11 are aligned and connected, so that a plurality of iron core barrels 11 are coaxially spliced ​​to form a heating kiln path of a rotary kiln; the electromagnetically heated rotary kiln of the utility model further includes a motor 3, which drives the kiln barrel assemblies 1 to rotate. For example, the motor 3 drives the kiln barrel assemblies 1 to rotate around the axis of the iron core barrel 11 through a transmission belt 4, such as Figure 1 As shown, the left end of the splicing assembly of the kiln barrel assembly 1 is connected to a feed pipe 2, and a feed pipe flange is formed at the right end of the feed pipe 2. The feed pipe flange is fixedly connected to the corresponding splicing flange 13 of the kiln barrel assembly 1, one end of the transmission belt 4 is sleeved on the feed pipe 2, and the other corresponding end of the transmission belt 4 is sleeved on the pulley on the output shaft of the motor 3, so that when the motor 3 is running, it can simultaneously drive each kiln barrel assembly 1 to rotate around the axis of the core tube 11, and the transmission belt 4 can be a synchronous belt. The coils 12 of each kiln barrel assembly 1 can be able to work independently to achieve temperature zone control; of course, the coils 12 can also be connected in parallel to simplify the circuit structure, such as Figure 1 and Figure 4As shown, since the coil 12 rotates synchronously with the core tube 11, an electrical connection component 6 is required. The electrical connection component 6 may include a brush 61, a copper ring 62 and a brush holder 63. The brush 61 is fixedly arranged on the brush holder 63, and the copper ring 62 is arranged on the outer periphery of the discharge pipe 8. The right end of the splicing component of the kiln tube assembly 1 is connected to the discharge pipe 8. Specifically, a discharge pipe flange 81 is provided at the left end of the discharge pipe 8. The discharge pipe flange 81 is fixedly connected to the corresponding splicing flange 13, and the brush 61 is connected to the corresponding copper ring 62. The external circuit electrically connects the brush 61, and the copper ring 62 is electrically connected to the coil 12, so that the external electrical energy can be transmitted to the coil 12 through the electrical connection component 6. High-frequency alternating current is input to the coil 12. Since the coil 12 is wound around the outside of the core tube 11, an induced eddy current is formed on the core tube 11, causing the core tube 11 to heat up. When the material passes through the core tube 11, the material will heat up, and the material will also contact the inner wall of the core tube 11, so the heat transfer effect is better. In order to make the material turn over in the core tube 11 so as to be evenly heated, Figure 3 As shown, the inner wall of the core barrel 11 can be welded with a material turning hook plate 111. When the core barrel 11 rotates, the material turning hook plate 111 pushes the material to rotate. When the material reaches the high end position in the core barrel 11, the material will gradually pour down, and the material will be well and evenly contacted with the inner wall of the core barrel 11. Since the rotary kiln of the utility model adopts an electromagnetic induction heating structure instead of open flame heating, the rotary kiln of the utility model is safer to use. Since the core barrel 11 directly heats and heats the material in a contact manner, the efficiency of heating the material is higher.

[0020] As can be seen from the above, since the utility model adopts a structure in which several kiln barrel assemblies 1 are spliced ​​together, the rotary kiln production factory can pre-produce a batch of kiln barrel assemblies 1 and change the number of kiln barrel assemblies 1 accordingly according to the length of the rotary kiln required by each customer. In this way, the delivery cycle of the rotary kiln can be shortened. Moreover, if a customer cancels the order temporarily, the kiln barrel assemblies 1 can also be disassembled for later use. Therefore, the electromagnetically heated rotary kiln of the utility model has better manufacturing flexibility.

[0021] Furthermore, if Figure 3As shown, a bolt mounting hole 1301 is formed on the splicing flange 13, and a bolt is arranged in the bolt mounting hole 1301 (it should be noted that the above-mentioned bolt is not drawn in each figure), and the adjacent splicing flanges 13 are fixedly connected by corresponding bolts. A positioning dovetail notch 1302 is formed on the splicing flange 13. The electromagnetically heated rotary kiln of the utility model also includes a dovetail insert 9, which is adapted to pass through the positioning dovetail notch 1302 on the adjacent splicing flange 13. Therefore, during the assembly process, the adjacent kiln barrel splices are first assembled. 1, align and abut the splicing flanges 13, then pass each bolt through the bolt mounting holes 1301 on the two adjacent splicing flanges 13, and then insert the dovetail insert 9 into the positioning dovetail notch 1302 on the two adjacent splicing flanges 13, that is, the dovetail insert 9 is simultaneously installed in the positioning dovetail notch 1302 on the two adjacent splicing flanges 13, so that the dovetail insert 9 positions the two adjacent splicing flanges 13 with high precision, which is conducive to the high-precision coaxial setting of the two adjacent core tubes 11, and then tighten each bolt. The dovetail insert 9 can be fixed to the splicing flange 13 by glue. The splicing flange 13 can be made of mica board, which has an insulating effect and has low heat transfer performance, so as to avoid burns caused by touching the splicing flange 13 and reduce heat loss.

[0022] Furthermore, if Figure 2 and Figure 3 As shown, the kiln tube assembly 1 includes an angle code 14 and a busbar support 15. The two ends of the busbar support 15 are fixedly connected to the corresponding splicing flange 13 through the corresponding angle code 14. Specifically, a right angle side of the angle code 14 is fixed to the splicing flange 13 through a rivet, and the other right angle side of the angle code 14 is fixedly connected to the busbar support 15 through a rivet. The busbar support 15 is arranged around the outer side of the core tube 11, so that the busbar support 15 radially supports the core tube 11, and the busbar support 15 positions the two splicing flanges 13 of the kiln tube assembly 1 relative to each other, as shown in FIG. Figure 2 As shown, the core barrel 11 can be clamped between the left and right splicing flanges 13, thereby preventing the core barrel 11 from axial displacement. Figure 2 As shown, the coil 12 is wound on the outside of the busbar support 15.

[0023] Furthermore, if Figure 1As shown, the rotary kiln of the utility model also includes a bracket assembly 7, which includes a base 71 and an adjustment seat 72. The base 71 and the adjustment seat 72 are respectively welded by rectangular steel pipes. One end of the adjustment seat 72 is hinged to one end of the base 71, and the other end corresponding to the base 71 is hinged to a lower swing arm 711, and the other end corresponding to the adjustment seat 72 is hinged to an upper swing arm 721. The upper swing arm 721 is connected to the lower swing arm 711 through a left-handed double-headed screw 73, that is, one end of the left-handed double-headed screw 73 is formed with a left-handed external thread, and the other end corresponding to the left-handed double-headed screw 73 is formed with a right-handed external thread. The upper swing arm 721 is screwed to one end of the left-handed double-headed screw 73, and the lower swing arm 711 is screwed to the other end corresponding to the left-handed double-headed screw 73. The kiln barrel assembly 1 is rotatably arranged on the adjustment seat 72. For example, the feed pipe 2 and the discharge pipe 8 are respectively supported by corresponding support wheel groups 5, and the support wheel group 5 is installed on the adjustment seat 72. Figure 5 As shown, the supporting wheel set 5 includes two rollers, which are arranged in a chordal direction of the feed pipe 2 and spaced apart from each other. The two rollers are in contact with the outer wall of the feed pipe 2, so that the kiln tube assembly 1 can rotate around a fixed axis. Figure 1 As shown, the motor 3 is mounted on the adjustment seat 72. Figure 4 As shown, a discharge pipe ring groove 801 is formed on the outer wall of the discharge pipe 8, and the copper ring 62 is concavely arranged in the discharge pipe ring groove 801. Figure 1 As shown, the roller of the supporting wheel set 5 corresponding to the discharge pipe 8 is axially adapted to be arranged in the discharge pipe ring groove 801. Since the copper ring 62 is arranged in a concave manner, the roller of the supporting wheel set 5 will not contact the copper ring 62. Figure 1 As shown, the lower end of the brush holder 63 is mounted on the adjustment seat 72. When the inclination angle of the axis of the kiln drum assembly 1 needs to be adjusted, the double-headed screw 73 can be rotated left and right to make the lower swing arm 711 and the upper swing arm 721 move relatively close to or relatively away from each other, so that the adjustment seat 72 swings to adjust the inclination angle. In order to allow the material input into the feed pipe 2 to slowly move to the discharge pipe 8 by gravity, Figure 1 In the visual direction, the axis of the core tube 11 should be adjusted to be higher on the left and lower on the right; the above-mentioned inclination angle adjustment structure is simple and stable.

[0024] Furthermore, if Figure 6 As shown, a hexagonal neck 731 is formed in the middle of the left-handed double-headed screw 73, that is, the hexagonal neck 731 is located between the left-handed external thread and the right-handed external thread. The user can use a wrench to clamp the hexagonal neck 731 to rotate the left-handed double-headed screw 73, which is conducive to convenient adjustment.

Claims

1. An electromagnetically heated rotary kiln, characterized in that: The invention comprises a kiln barrel assembly (1), wherein the kiln barrel assembly (1) comprises an iron core barrel (11), a coil (12) and a splicing flange (13), wherein the coil (12) is wound around the outside of the iron core barrel (11), and the splicing flange (13) is arranged at the left and right ends of the iron core barrel (11), at least two of the kiln barrel assemblies (1) are distributed along the axial direction, adjacent splicing flanges (13) are closely fixedly connected, and adjacent iron core barrels (11) are aligned and connected; and the invention also comprises a motor (3), wherein the motor (3) drives the kiln barrel assembly (1) to rotate.

2. The electromagnetically heated rotary kiln according to claim 1, characterized in that: A bolt mounting hole (1301) is formed on the splicing flange (13), and a bolt is arranged in the bolt mounting hole (1301). Adjacent splicing flanges (13) are fixedly connected by corresponding bolts. A positioning dovetail notch (1302) is formed on the splicing flange (13); and a dovetail insert (9) is also included. The dovetail insert (9) is adapted to pass through the positioning dovetail notch (1302) on the adjacent splicing flange (13).

3. The electromagnetically heated rotary kiln according to claim 1, characterized in that: The kiln tube assembly (1) comprises an angle bracket (14) and a busbar support (15), the two ends of the busbar support (15) are fixedly connected to the corresponding splicing flange (13) through the corresponding angle bracket (14), and the busbar support (15) is arranged around the outer side of the core tube (11).

4. The electromagnetically heated rotary kiln according to claim 1, characterized in that: The invention also comprises a support assembly (7), wherein the support assembly (7) comprises a base (71) and an adjustment seat (72), one end of the adjustment seat (72) is hinged to one end of the base (71), the other end of the base (71) corresponding to the other end is hinged to a lower swing arm (711), the other end of the adjustment seat (72) corresponding to the other end is hinged to an upper swing arm (721), the upper swing arm (721) is connected to the lower swing arm (711) via a left-right rotating double-head screw (73), the kiln barrel assembly (1) is rotatably arranged on the adjustment seat (72), and the motor (3) is installed on the adjustment seat (72).

5. The electromagnetically heated rotary kiln according to claim 4, characterized in that: A hexagonal neck (731) is formed in the middle of the left-right double-headed screw (73).

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