Novel electromagnetic heating rotary kiln

Abstract

The utility model discloses a novel electromagnetic heating rotary kiln which comprises an industrial control host and a support, a rotary kiln body is rotatably installed on the support, an electromagnetic induction coil is fixedly connected to the support, the electromagnetic induction coil is electrically connected with the industrial control host, and the rotary kiln body penetrates through the inner side of the electromagnetic induction coil. A gear motor used for driving the rotary kiln body is fixedly installed on the support. Two lower supporting frames and two upper supporting frames are symmetrically and fixedly connected to the positions, located on the two sides of the electromagnetic induction coil, of the support. The lower supporting frames and the upper supporting frames are each provided with an arc-shaped groove used for allowing the heat preservation layer to penetrate through. The middle of the outer wall of the rotary kiln body is fixedly sleeved with a heat preservation layer, and the heat preservation layer penetrates through the inner side of the electromagnetic induction coil. By means of the electromagnetic induction coil, electromagnetic heating can be conducted on the rotary kiln body, and compared with a traditional resistance type heating and fuel heating mode, the rotary kiln is higher in temperature rising speed, even in heating, easy in temperature control, free of tail gas pollution and good in using effect.

Description

Technical Field

[0001] The utility model relates to a rotary kiln, in particular to a novel electromagnetic heating rotary kiln. Background Art

[0002] The rotary kiln is a continuous calcining equipment commonly used in various metallurgical industries. Currently, most rotary kilns use resistance wire heating or fuel heating, which has low heat conversion efficiency and slow heating rate. The heating method of burning fuel easily causes uneven heating of the rotary kiln and is difficult to control the temperature. At the same time, there will be a large amount of exhaust emissions, which is highly polluting and not environmentally friendly.

[0003] To this end, we propose a new electromagnetic heating rotary kiln. Utility Model Content

[0004] The purpose of the utility model is to provide a novel electromagnetic heating rotary kiln to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new electromagnetic heating rotary kiln includes an industrial control host and a bracket. The rotary kiln body is rotatably mounted on the bracket. An electromagnetic induction coil is fixedly connected to the bracket. The electromagnetic induction coil is electrically connected to the industrial control host. The rotary kiln body passes through the inner side of the electromagnetic induction coil. A reduction motor for driving the rotary kiln body is fixedly mounted on the bracket.

[0007] As a further solution of the present invention: a heat-insulating layer is fixedly sleeved in the middle of the outer wall of the rotary kiln body, and the heat-insulating layer passes through the inner side of the electromagnetic induction coil.

[0008] As a further solution of the present invention: the bracket is located on both sides of the electromagnetic induction coil and is symmetrically fixedly connected to two lower support frames and an upper support frame. The lower support frame and the upper support frame are both provided with arc-shaped grooves for passing the thermal insulation layer. A number of cross bars are passed through the inner side of the electromagnetic induction coil. The cross bars are located between the electromagnetic induction coil and the thermal insulation layer. The two ends of the cross bars are fixedly connected to the corresponding lower support frame or upper support frame, and the electromagnetic induction coil is fixedly connected to the cross bars.

[0009] As a further solution of the present invention: the outer wall of the rotary kiln body is fixedly sleeved with rings near both ends, and the corresponding parts of the industrial control host corresponding to each ring are rotatably connected to two rollers through bearing seats, and the outer walls of the rollers are provided with grooves adapted to the rings, and the rings are in contact with the inner walls of the corresponding grooves.

[0010] As a further solution of the present invention: the output shaft of the reduction motor is fixedly connected to a small pulley, the outer wall of the rotary kiln body and the corresponding position of the small pulley are fixedly sleeved with a large pulley, and the large pulley is connected to the small pulley through a synchronous belt.

[0011] As a further solution of the present invention: temperature sensors are installed on the outer walls of the openings at both ends of the rotary kiln body.

[0012] As a further solution of the present invention: the electromagnetic induction coil is a hollow spiral copper tube, and pipe joints are installed at both ends of the copper tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model utilizes the setting of electromagnetic induction coil to electromagnetically heat the rotary kiln body. Compared with traditional resistance heating and fuel heating methods, the utility model has faster heating speed, more uniform heating, easier temperature control, no exhaust pollution, and better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a new type of electromagnetic heating rotary kiln.

[0016] Figure 2 This is a schematic diagram of the front view of a new type of electromagnetic heating rotary kiln.

[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0018] Among them, the industrial control host 1, the bracket 2, the rotary kiln body 3, the ring 4, the roller 5, the large pulley 6, the reduction motor 7, the small pulley 8, the temperature sensor 9, the insulation layer 10, the electromagnetic induction coil 11, the lower support frame 12, the upper support frame 13, and the cross bar 14. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation as described in the specification. Therefore, it should not be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0023] See also Figures 1 to 3 In an embodiment of the present utility model, a new electromagnetic heating rotary kiln includes an industrial control host 1 and a bracket 2. A rotary kiln body 3 is rotatably mounted on the bracket 2. An electromagnetic induction coil 11 is fixedly connected to the bracket 2. The electromagnetic induction coil 11 is electrically connected to the industrial control host 1. The rotary kiln body 3 passes through the inner side of the electromagnetic induction coil 11. A reduction motor 7 for driving the rotary kiln body 3 is fixedly mounted on the bracket 2.

[0024] The present invention adopts the above-mentioned scheme and utilizes the arrangement of the electromagnetic induction coil 11 to replace the traditional heating method with electromagnetic heating. The industrial control host 1 energizes the electromagnetic induction coil 11, and the electromagnetic induction coil 11 generates an electromagnetic field to electromagnetically heat the rotary kiln body 3. The curvature of the magnetic induction surface of the electromagnetic induction coil 11 is designed to match the curvature of the rotary kiln body 3. In this way, when installed, the magnetic induction surface of the electromagnetic induction coil 11 can just fully cover the rotary kiln body 3, so that the magnetic field generated by the electromagnetic induction coil 11 can cover the rotary kiln body 3. The rotary kiln body 3 cuts the alternating magnetic lines of force and generates alternating eddy currents on the rotary kiln body 3. The eddy currents cause the carriers of the rotary kiln body 3 to move irregularly at high speed. The carriers collide and rub with atoms to generate heat energy, thereby heating the rotary kiln body 3. Compared with traditional resistive heating and fuel heating methods, the utility model has a faster heating speed, more uniform heating, easier temperature control, no exhaust pollution, and good use effect.

[0025] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, a fixed sleeve is provided with an insulation layer 10 in the middle of the outer wall of the rotary kiln body 3. The insulation layer 10 is made of glass fiber insulation cotton. The insulation layer 10 passes through the inner side of the electromagnetic induction coil 11.

[0026] The heat-insulating layer 10 can keep the heated section of the rotary kiln main body 3 warm.

[0027] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, the bracket 2 is located on both sides of the electromagnetic induction coil 11 and is symmetrically fixedly connected to two lower support frames 12 and an upper support frame 13. The lower support frame 12 and the upper support frame 13 are both provided with arc-shaped grooves for penetrating the thermal insulation layer 10. The inner side of the electromagnetic induction coil 11 is penetrated by a plurality of non-metallic cross bars 14. The cross bars 14 are located between the electromagnetic induction coil 11 and the thermal insulation layer 10. The two ends of the cross bars 14 are fixedly connected to the corresponding lower support frame 12 or the upper support frame 13, and the electromagnetic induction coil 11 is fixedly connected to the cross bars 14.

[0028] By using the lower support frame 12 , the upper support frame 13 and a plurality of non-metallic cross bars 14 , the electromagnetic induction coil 11 can be fixedly supported on the bracket 2 to prevent the electromagnetic induction coil 11 from contacting the insulation layer 10 or the rotary kiln body 3 .

[0029] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, the outer wall of the rotary kiln body 3 is fixedly sleeved with a collar 4 near both ends, and the industrial control host 1 is rotatably connected to the corresponding position of each collar 4 through a bearing seat with two rollers 5, and the outer wall of the roller 5 is provided with a groove adapted to the collar 4, and the collar 4 fits with the inner wall of the corresponding groove.

[0030] The cooperation between the collar 4 and the roller 5 can rotatably support the rotary kiln body 3 on the bracket 2 , and the provision of the groove can prevent the collar 4 from slipping off the roller 5 .

[0031] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, the output shaft of the reduction motor 7 is fixedly connected to a small pulley 8, and a large pulley 6 is fixedly sleeved on the outer wall of the rotary kiln body 3 corresponding to the small pulley 8. The large pulley 6 is connected to the small pulley 8 through a synchronous belt (not shown in the figure).

[0032] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, wireless communication type temperature sensors 9 are installed on the outer walls of both end openings of the rotary kiln body 3 .

[0033] By providing the temperature sensor 9 , the inlet and outlet temperatures of the rotary kiln main body 3 can be monitored.

[0034] In addition, in some preferred embodiments of the present invention, the electromagnetic induction coil 11 is a hollow spiral copper tube, and pipe joints are installed at both ends of the copper tube. By connecting the two pipe joints to the inlet and outlet oil pipelines of the industrial oil cooler, cooling oil can be introduced into the electromagnetic induction coil 11 to cool the electromagnetic induction coil 11 and prevent the high temperature of the rotary kiln body 3 from affecting the operation of the electromagnetic induction coil 11.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of electromagnetic heating rotary kiln, characterized by: The invention comprises an industrial control host (1) and a bracket (2), wherein a rotary kiln main body (3) is rotatably mounted on the bracket (2), an electromagnetic induction coil (11) is fixedly connected to the bracket (2), the electromagnetic induction coil (11) is electrically connected to the industrial control host (1), the rotary kiln main body (3) passes through the inner side of the electromagnetic induction coil (11), a reduction motor (7) for driving the rotary kiln main body (3) is fixedly mounted on the bracket (2), the electromagnetic induction coil (11) is a hollow spiral copper tube, and both ends of the copper tube are equipped with pipe joints for connecting to an industrial oil cooler.

2. A novel electromagnetic heating rotary kiln according to claim 1, characterized in that: A heat-insulating layer (10) is fixedly sleeved on the middle portion of the outer wall of the rotary kiln body (3), and the heat-insulating layer (10) passes through the inner side of the electromagnetic induction coil (11).

3. A novel electromagnetic heating rotary kiln according to claim 2, characterized in that: The bracket (2) is located on both sides of the electromagnetic induction coil (11) and is symmetrically fixedly connected to two lower support frames (12) and an upper support frame (13). The lower support frame (12) and the upper support frame (13) are both provided with arc-shaped grooves for penetrating the thermal insulation layer (10). A plurality of cross bars (14) are penetrated on the inner side of the electromagnetic induction coil (11). The cross bars (14) are located between the electromagnetic induction coil (11) and the thermal insulation layer (10). The two ends of the cross bars (14) are fixedly connected to the corresponding lower support frame (12) or upper support frame (13), and the electromagnetic induction coil (11) is fixedly connected to the cross bars (14).

4. A novel electromagnetic heating rotary kiln according to claim 1, characterized in that: The outer wall of the rotary kiln body (3) is fixedly sleeved with a sleeve ring (4) near both ends, and the industrial control host (1) is rotatably connected to the corresponding position of each sleeve ring (4) with two rollers (5) through a bearing seat, and the outer wall of the roller (5) is provided with a groove adapted to the sleeve ring (4), and the sleeve ring (4) is in contact with the inner wall of the corresponding groove.

5. The novel electromagnetic heating rotary kiln according to claim 1, characterized in that: The output shaft of the reduction motor (7) is fixedly connected to a small pulley (8); the outer wall of the rotary kiln body (3) and the corresponding position of the small pulley (8) are fixedly sleeved with a large pulley (6); the large pulley (6) is connected to the small pulley (8) through a synchronous belt.

6. The novel electromagnetic heating rotary kiln according to claim 1, characterized in that: Temperature sensors (9) are installed on the outer walls of both end openings of the rotary kiln body (3).

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