Ignition device applied to rotary kiln

Abstract

The utility model relates to the technical field of cement production, and discloses an ignition device applied to a rotary kiln. When the igniter main body needs to be detached for replacement or maintenance, the igniter main body is firstly hoisted by hoisting equipment, then the bolt between the first flange plate and the second flange plate is detached, the second U-shaped frame is moved away after the connection between the second U-shaped frame and the igniter main body is disconnected, and the igniter main body is replaced or overhauled. And then the first U-shaped frame and the igniter main body are disconnected, at the moment, the igniter main body can completely penetrate through the first U-shaped frame only by moving the hoisting equipment backwards by a small distance, and then the igniter main body can be lifted upwards and completely removed. In this way, in the dismounting process, the actions of repeated hoisting and frequent dismounting of the connection between the hoisting equipment and the igniter body can be effectively avoided, and the igniter body does not need to be completely pulled out to the outer end of the movable supporting frame and only needs to penetrate through the first U-shaped supporting frame.

Description

Technical Field

[0001] This application relates to the field of cement production technology, specifically to an ignition device applied to a rotary kiln. Background Technology

[0002] The production of concrete requires the use of rotary kilns, which feed raw meal powder or raw meal slurry after batching and grinding into the kiln. In the high-temperature environment inside the kiln (generally around 1450℃), the raw meal undergoes a series of complex physicochemical reactions, completing processes such as carbonate decomposition, solid-phase reaction, and clinker sintering, ultimately forming cement clinker. The normal operation of a rotary kiln is inseparable from an igniter.

[0003] In existing technologies, ignition devices are typically connected in conjunction with a traveling trolley. When ignition is required, the traveling trolley moves the ignition device to the appropriate position for ignition. Therefore, the burner and the traveling trolley are usually integrated. However, the burner requires regular maintenance, and when it malfunctions, it needs to be disassembled and replaced promptly. The replacement process necessitates separating the burner from the traveling trolley, and the speed of burner replacement directly impacts the operation of the rotary kiln. Currently, the separation process requires the entire burner to be removed from the traveling trolley, and burner replacement takes more than 6 hours. The disassembly, hoisting, and installation processes are cumbersome and severely affect kiln operating time. Utility Model Content

[0004] In view of the above problems, this application provides an ignition device for rotary kilns, which can quickly separate the burner and the traveling trolley when replacing or maintaining the burner.

[0005] According to one aspect of the embodiments of this application, an ignition device for a rotary kiln is provided. The ignition device for a rotary kiln includes a movable support frame and an igniter body. The movable support frame includes a support frame body, the first end of which forms a U-shaped groove. Two rotating wheels are rotatably connected to each side of the support frame. A first U-shaped frame is provided at the opening end of the U-shaped groove on the support frame body, and a second U-shaped frame corresponding to the first U-shaped frame is provided at the rear end of the U-shaped groove on the support frame body. The igniter body includes a main pipe that passes through the inner sides of the first U-shaped frame and the second U-shaped frame. One end of the main pipe is detachably fixed to the bottom of the first U-shaped frame, and a connecting rod component is fixed to the middle of the main pipe. The connecting rod component is detachably fixed to the bottom of the second U-shaped frame.

[0006] The bottom of the second U-shaped frame is fixed with a first flange, and the top of the support frame body is fixed with a second flange. The bottom of the second U-shaped frame is connected to the second flange through the first flange.

[0007] In some embodiments, the second U-shaped frame and the first flange are connected by a plurality of first reinforcing ribs.

[0008] In some embodiments, a support is connected between the second flange and the support frame body. The two ends of the support are welded to the support frame body and the second flange, respectively. The cross-sectional dimension of the support is smaller than that of the second flange. A plurality of second reinforcing ribs are provided between the outer wall of the support and the support frame body.

[0009] In some embodiments, the connecting rod component is provided with a first connecting end on the side near the top of the second U-shaped frame, and a lifting rod is detachably provided on the top of the first connecting end. The other end of the lifting rod extends upward through to the top of the second U-shaped frame and is fixed by a nut.

[0010] In some embodiments, the connecting rod component is provided with second connecting ends on both sides of the first connecting end. The second connecting end includes two symmetrically arranged clamps with vertical holes. A pull ring is provided between the two clamps. A tension rod is connected to the outside of the pull ring. The other end of the tension rod is a threaded rod. The threaded rod passes through the second U-shaped frame and is screwed with an adjusting nut. The adjusting nut abuts against the side wall of the second U-shaped frame.

[0011] In some embodiments, the second U-shaped frame has a strip-shaped reserved hole, the threaded rod passes through the reserved hole of the saxaul tree, and an elastic steel sheet is sleeved on the threaded rod, the elastic steel sheet being located between the adjusting nut and the second U-shaped frame.

[0012] The beneficial effects of this application are as follows: With the above-described configuration, when the igniter body needs to be disassembled for replacement or repair, the igniter body is first hoisted using lifting equipment. Then, the bolts between the first and second flanges are removed, disconnecting the connection between the second U-shaped frame and the igniter body. The second U-shaped frame is then removed, and subsequently, the connection between the first U-shaped frame and the igniter body is disconnected. At this point, only a small backward movement of the lifting equipment is needed to allow the igniter body to completely pass through the first U-shaped frame. Then, it can be lifted upwards and completely removed. Therefore, this application effectively avoids repeated hoisting and frequent disassembly of the connection between the lifting equipment and the igniter body during disassembly. Furthermore, it does not require completely pulling the igniter body out to the outer end of the movable support frame; it only needs to pass it through the first U-shaped support frame, thereby improving the efficiency of igniter body replacement.

[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0015] Figure 1 A schematic diagram of the overall structure of an ignition device applied to a rotary kiln, provided in an embodiment of this application;

[0016] Figure 2 for Figure 1 Enlarged view at point A;

[0017] Figure 3 for Figure 1 Enlarged view at point B.

[0018] The reference numerals in the detailed embodiments are as follows:

[0019] The rotary kiln includes an ignition device 100, a scratching platform 110, a guide rod 111, a return spring 111a, a connecting plate 112, a scratching device 113, a sliding device 120, a sliding sleeve 121, a rotating shaft 121a, a swing arm 122, a baffle 123, a pushing device 130, a placement platform 131, a fixed base 132, a two-way hydraulic cylinder 133, a pressing device 140, a pressure plate 141, a rubber pad 142, and a limiting plate 150. Detailed Implementation

[0020] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0021] For details, please refer to Figures 1 to 3 , Figure 1This is a schematic diagram of the overall structure of an ignition device applied to a rotary kiln, as provided in an embodiment of this application. Figure 2 for Figure 1 Enlarged view at point A. Figure 3 for Figure 1 Enlarged view at point B. The ignition device 100 applied to the rotary kiln includes a movable support frame 110 and an igniter body 120. The igniter body 120 includes components such as an inner air duct, an outer air duct, and a clean air duct, the details of which can be found in existing technology and will not be elaborated here. The movable support frame 110 includes a support frame body 111, which is used to transport the igniter body 120 to the corresponding position on the kiln inlet end face. The first end of the support frame body 111 forms a U-shaped through groove 112, which makes the bottom of the support frame body 111 open, facilitating easy position adjustment when the igniter body 120 is raised and lowered. Two rotating wheels 113 are rotatably connected to each side of the support frame, and the rotating wheels 113 are connected to a track to facilitate the movement of the entire device. The support frame body 111 is provided with a first U-shaped frame 130 at the open end of the U-shaped through groove 112, and a second U-shaped frame 140 corresponding to the first U-shaped frame 130 is provided at the rear end of the support frame body 111 at the U-shaped through groove 112. The first U-shaped frame 130 and the second U-shaped frame 140 are respectively used for detachable connection with the igniter body 120. When it is necessary to inspect the igniter body 120, the connection point between it and the first U-shaped frame 130 and the second U-shaped frame 140 can be disconnected and the igniter body 120 can be moved away by a crane. The igniter body 120 includes a main pipe 121, which passes through the inner side of the first U-shaped frame 130 and the second U-shaped frame 140. One end of the main pipe 121 is detachably fixed to the bottom of the first U-shaped frame 130. A connecting rod component 122 is fixed in the middle of the main pipe 121. The connecting rod component 122 is detachably fixed to the bottom of the second U-shaped frame 140. The connecting rod component 122 is stably connected to the main pipe 121. At the same time, the main pipe 121 is detachably connected to the second U-shaped frame 140, thereby completing the limiting connection of the first U-shaped frame 130 and the second U-shaped frame 140 on the igniter body 120, so that the igniter body 120 can be stably connected above the movable support frame 110. The bottom of the second U-shaped frame 140 is fixed with a first flange 141, and the top of the support frame body 111 is fixed with a second flange 111a. The bottom of the second U-shaped frame 140 is connected to the second flange 111a through the first flange 141. With the above arrangement, the second U-shaped frame 140 and the support frame body 111 are connected by a flange, which can meet the strength requirements on the one hand, and allow the second U-shaped frame 140 and the support frame body 111 to be quickly disassembled on the other hand.

[0022] As can be seen from the above, in this embodiment of the application, with the above-described configuration, when the igniter body 120 needs to be disassembled for replacement or maintenance, the igniter body 120 is first hoisted using a hoisting device. Then, the bolts between the first flange 141 and the second flange 111a are removed, the connection between the second U-shaped frame 140 and the igniter body 120 is disconnected, and the second U-shaped frame 140 is removed. Then, the connection between the first U-shaped frame 130 and the igniter body 120 is disconnected. At this point, it is only necessary to move the hoisting device back a small distance so that the igniter body 120 can completely pass through the first U-shaped frame 130. Then, it can be lifted upwards and completely removed. Thus, this application can effectively avoid repeated hoisting and frequent disassembly of the connection between the hoisting device and the igniter body 120 during the disassembly process. Moreover, it is not necessary to completely pull the igniter body 120 out to the outer end of the movable support frame 110, but only to pass it through the first U-shaped support frame, thereby improving the replacement efficiency of the igniter body 120.

[0023] In some embodiments, a plurality of first reinforcing ribs 142 are connected between the second U-shaped frame 140 and the first flange 141. In this embodiment, the above arrangement can effectively enhance the connection strength between the second U-shaped frame 140 and the first flange 141.

[0024] In some embodiments, a support 111b is connected to both the second flange 111a and the support frame body 111. The two ends of the support 111b are welded to the support frame body 111 and the second flange 111a, respectively. The cross-sectional dimension of the support is smaller than that of the second flange 111a. Multiple second reinforcing ribs 111c are provided between the outer wall of the support and the support frame body 111. In this embodiment, the cross-sectional dimension of the support is smaller than that of the second flange 111a, making it easier for operators to insert tools under the second flange 111a to complete the connection. The second reinforcing ribs 111c further enhance the connection strength between the support and the second flange 111a.

[0025] In some embodiments, the connecting rod component 122 is provided with a first connecting end 122a on the side near the top of the second U-shaped frame 140. A lifting rod 143 is detachably provided on the top of the first connecting end 122a. The other end of the lifting rod 143 extends upward through to the top of the second U-shaped frame 140 and is fixed by a nut. In this embodiment, with the above arrangement, one end of the lifting rod 143 is fixed to the top of the second U-shaped frame 140 by a nut, and the other end is connected to the connecting rod component 122 through the first connecting end 122a, thereby enabling the lifting action of the igniter body 120 to be completed.

[0026] In some embodiments, the connecting rod component 122 has two second connecting ends 122b respectively located on both sides of the first connecting end 122a. The second connecting end 122b includes two symmetrically arranged clamps with vertical holes. A pull ring 144 is provided between the two clamps. A tension rod 145 is connected to the outside of the pull ring 144. The other end of the tension rod 145 is a threaded rod. The threaded rod passes through the second U-shaped frame 140 and is screwed with an adjusting nut 146. The adjusting nut 146 abuts against the side wall of the second U-shaped frame 140. In this embodiment, with the above configuration, after tightening the adjusting nut 146 during use, the tension rod 145 will be in a tensioned state. Furthermore, by tensioning both sides of the connecting rod component 122 with the tension rod 145, the movement tendency of the connecting rod component 122 in various positions is restricted in conjunction with the lifting rod 143, thereby improving the stability of the connection to the igniter body 120.

[0027] In some embodiments, the second U-shaped frame 140 has a strip-shaped reserved hole 147, and a threaded rod is provided through the reserved hole 147 of the Haloxylon ammodendron tree. An elastic steel sheet 148 is sleeved on the threaded rod, and the elastic steel sheet 148 is located between the adjusting nut 146 and the second U-shaped frame 140. In this embodiment, by providing the reserved hole 147, it is convenient for the extension rod 145 to be inserted, and the position of the extension rod 145 can be adjusted up and down within a certain range within the reserved hole 147.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ignition device for use in a rotary kiln, characterized in that, It includes a movable support frame and an igniter body. The movable support frame includes a support frame body, the first end of which forms a U-shaped through groove. Two rotating wheels are rotatably connected to each side of the support frame. The support frame body is provided with a first U-shaped frame at the open end of the U-shaped through groove, and the support frame body is provided with a second U-shaped frame corresponding to the first U-shaped frame at the rear end of the U-shaped through groove. The igniter body includes a main pipe that passes through the inner side of the first U-shaped frame and the second U-shaped frame. One end of the main pipe is detachably fixed to the bottom of the first U-shaped frame, and a connecting rod component is fixed in the middle of the main pipe. The connecting rod component is detachably fixed to the bottom of the second U-shaped frame. The bottom of the second U-shaped frame is fixed with a first flange, and the top of the support frame body is fixed with a second flange. The bottom of the second U-shaped frame is connected to the second flange through the first flange.

2. The ignition device for a rotary kiln according to claim 1, characterized in that, The second U-shaped frame and the first flange are connected by a plurality of first reinforcing ribs.

3. The ignition device for a rotary kiln according to claim 2, characterized in that, The second flange and the support frame body are connected by a support. The two ends of the support are welded to the support frame body and the second flange, respectively. The cross-sectional dimension of the support is smaller than that of the second flange. Multiple second reinforcing ribs are provided between the outer wall of the support and the support frame body.

4. The ignition device for a rotary kiln according to claim 1, characterized in that, The connecting rod component has a first connecting end near the top of the second U-shaped frame. A lifting rod is detachably provided at the top of the first connecting end. The other end of the lifting rod extends upward through to the top of the second U-shaped frame and is fixed with a nut.

5. The ignition device for a rotary kiln according to claim 4, characterized in that, The connecting rod component has two second connecting ends on either side of the first connecting end. The second connecting end includes two symmetrically arranged clamps with vertical holes. A pull ring is provided between the two clamps. A tension rod is connected to the outside of the pull ring. The other end of the tension rod is a threaded rod. The threaded rod passes through the second U-shaped frame and is screwed with an adjusting nut. The adjusting nut abuts against the side wall of the second U-shaped frame.

6. The ignition device for a rotary kiln according to claim 5, characterized in that, The second U-shaped frame has a strip-shaped reserved hole, and the threaded rod is set through the reserved hole of the saxaul tree. An elastic steel sheet is sleeved on the threaded rod, and the elastic steel sheet is located between the adjusting nut and the second U-shaped frame.

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