Plasma ignition device of pellet rotary kiln

Abstract

The utility model relates to the technical field of ignition devices, in particular to a pellet rotary kiln plasma ignition device which comprises a bearing plate, a protective frame is fixedly connected to the front face of the bearing plate, an ignition assembly is arranged in the protective frame, a control assembly is arranged on the back face of the bearing plate, and the ignition assembly comprises an elastic sleeve. The elastic sleeve fixedly communicates with the front face of a bearing plate, and the front face of the bearing plate is fixedly connected with a telescopic rod. According to the plasma ignition device of the pellet rotary kiln, by installing the ignition assembly, through cooperation of the elastic sleeve, the telescopic rod and other components, the elastic sleeve can protect the communicating line pipe in the protection frame, then the telescopic rod stretches out to enable a plasma ignition head on the bottom plate to ignite the interior of the furnace, and after ignition is completed, the telescopic rod is retracted; the plasma ignition head can be stored in the protection frame body, the plasma ignition head is prevented from being in a high-temperature state for a long time after ignition, the service life is further prolonged, and frequent replacement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition devices, in particular to a plasma ignition device for a pelletizing rotary kiln. Background Art

[0002] The pelletizing rotary kiln is mainly used to calcine iron ore pellets in order to reduce the moisture content in the ore, thereby increasing the iron content of the iron ore. The pelletizing rotary kiln needs to be ignited and burned during operation, so a pelletizing rotary kiln plasma ignition device is required.

[0003] The existing plasma ignition device is directly installed on the furnace side during use. After ignition, it is in a high temperature state for a long time, resulting in a short service life of the plasma ignition device. The maintenance means replacing the plasma ignition device, which is costly. Utility Model Content

[0004] The purpose of the utility model is to provide a plasma ignition device for a pelletizing rotary kiln, so as to solve the problem that the existing plasma ignition device mentioned in the above background technology is directly installed on the furnace side during use, and is in a high temperature state for a long time after ignition, resulting in a short service life of the plasma ignition device, and the maintenance is to replace the plasma ignition device, which is costly. In order to achieve the above purpose, the utility model provides the following technical solutions: The plasma ignition device for a pelletizing rotary kiln includes a bearing plate, the front side of the bearing plate is fixedly connected to a protective frame, the interior of the protective frame is provided with an ignition assembly, the back side of the bearing plate is provided with a control assembly, the ignition assembly includes an elastic sleeve, the elastic sleeve is fixedly connected to the front side of the bearing plate, the front side of the bearing plate is fixedly connected to a telescopic rod, the front end of the telescopic rod is fixedly connected to a bottom plate, and the front side of the bottom plate is fixedly connected to a plasma ignition head.

[0005] Further preferably, the ignition assembly also includes a connecting bin, which is fixedly connected to the back side of the supporting plate, and the back side of the connecting bin is fixedly connected with a through pipe, and a connecting hole is opened on the back side of the connecting bin. By installing the ignition assembly, the elastic sleeve can protect the connecting wire pipe in the protective frame through the cooperation between the elastic sleeve and the telescopic rod and other components, and then the telescopic rod is extended to allow the plasma ignition head on the bottom plate to ignite into the furnace. When the ignition is completed, the telescopic rod is retracted, so that the plasma ignition head can be stored in the protective frame, thereby avoiding the plasma ignition head being in a high temperature state for a long time after ignition, thereby improving the service life and avoiding the need for frequent replacement.

[0006] Further preferably, the control component includes a console, the console is fixedly connected to the back side of the carrier plate, a control line is fixedly connected to one side of the console, and a display light is fixedly connected to the top of the console. By installing the control component, the display light on the console can display the working status of the ignition component through the cooperation between the console and the control line and other components.

[0007] Further preferably, the control component also includes a display screen, which is fixedly connected to one side of the console, an operation button is fixedly connected to one side of the console, and a movable door is movably connected to one side of the console. Then the staff can use the display screen and the operation button to operate and control the ignition component in the device, thereby providing convenience for the staff.

[0008] Further preferably, the plasma ignition head is fixedly connected to the inside with an air outlet, and the other end of the air outlet is connected to a through pipe. By installing the air outlet, the combustible material in the through pipe can be discharged from the air outlet after the plasma ignition head is started, thereby improving the ignition effect.

[0009] Further preferably, an exposure opening is opened on the front side of the protective frame, and the internal movably connected with a mounting bolt of the supporting plate, and by installing the exposure opening, the plasma ignition head in the ignition assembly can be extended from the exposure opening for ignition during ignition, and then the protective frame is retracted after the ignition is completed. This structure enhances the heat insulation protection effect of the protective frame on the plasma ignition head.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the utility model, by installing the ignition assembly, the elastic sleeve can protect the connecting wire pipe in the protective frame through the cooperation between the elastic sleeve and the telescopic rod and other components. Then the telescopic rod is extended to allow the plasma ignition head on the bottom plate to ignite in the furnace. When the ignition is completed, the telescopic rod is retracted, so that the plasma ignition head can be stored in the protective frame, which avoids the plasma ignition head being in a high temperature state for a long time after ignition, thereby improving the service life and avoiding the need for frequent replacement.

[0012] In the utility model, by installing the control component, the display light on the console can display the working status of the ignition component through the cooperation between the console and the control line and other components. Then the staff can use the display screen and the operation button to operate and control the ignition component in the device, thereby providing convenience for the staff.

[0013] In the utility model, by installing the exposure port, the plasma ignition head in the ignition assembly can be extended from the exposure port to ignite during ignition, and then the protective frame is retracted after the ignition is completed. This structure improves the heat insulation protection effect of the protective frame on the plasma ignition head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the local three-dimensional detail structure of the utility model Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the local three-dimensional detail structure of the utility model Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the local three-dimensional detail structure of the utility model Figure 3 .

[0019] In the figure: 1. bearing plate; 2. protective frame; 3. ignition assembly; 301. elastic sleeve; 302. telescopic rod; 303. bottom plate; 304. plasma ignition head; 305. connecting compartment; 306. through pipe; 307. connecting hole; 4. control assembly; 401. control console; 402. control line; 403. display light; 404. display screen; 405. operation button; 406. movable door; 5. air outlet; 6. exposure port; 7. mounting bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a plasma ignition device for a pelletizing rotary kiln, comprising a bearing plate 1, a protective frame 2 is fixedly connected to the front of the bearing plate 1, an ignition assembly 3 is arranged inside the protective frame 2, a control assembly 4 is arranged on the back of the bearing plate 1, the ignition assembly 3 comprises an elastic sleeve 301, the elastic sleeve 301 is fixedly connected to the front of the bearing plate 1, a telescopic rod 302 is fixedly connected to the front of the bearing plate 1, a front end of the telescopic rod 302 is fixedly connected to a bottom plate 303, and a plasma ignition head 304 is fixedly connected to the front of the bottom plate 303.

[0022] In this embodiment, Figure 2As shown, the ignition component 3 also includes a connecting bin 305, which is fixedly connected to the back of the carrier plate 1, and a through pipe 306 is fixedly connected to the back of the connecting bin 305. A connecting hole 307 is provided on the back of the connecting bin 305. By installing the ignition component 3, the elastic sleeve 301 and the telescopic rod 302 can cooperate with each other to protect the connecting wire pipe in the protective frame 2. Then the telescopic rod 302 is extended to allow the plasma ignition head 304 on the bottom plate 303 to ignite into the furnace. When the ignition is completed, the telescopic rod 302 is retracted to allow the plasma ignition head 304 to be stored in the protective frame 2, thereby avoiding the plasma ignition head 304 being in a high temperature state for a long time after ignition.

[0023] In this embodiment, Figure 2 and Figure 4 As shown, the control component 4 includes a console 401, which is fixedly connected to the back of the carrier plate 1, a control line 402 is fixedly connected to one side of the console 401, and a display light 403 is fixedly connected to the top of the console 401. By installing the control component 4, the display light 403 on the console 401 can display the working status of the ignition component 3 through the cooperation between the console 401 and the control line 402 and other components.

[0024] In this embodiment, Figure 2 and Figure 4 As shown, the control component 4 also includes a display screen 404, which is fixedly connected to one side of the console 401, an operation button 405 is fixedly connected to one side of the console 401, and a movable door 406 is movably connected to one side of the console 401. Then the staff can use the display screen 404 and the operation button 405 to operate and control the ignition component 3 in the device.

[0025] In this embodiment, Figure 4 and Figure 5 As shown, the plasma ignition head 304 is fixedly connected with an air outlet 5 inside, and the other end of the air outlet 5 is connected with the through pipe 306. By installing the air outlet 5, the combustible material in the through pipe 306 can be discharged from the air outlet 5 after the plasma ignition head 304 is started.

[0026] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, an exposure opening 6 is opened on the front side of the protective frame 2, and a mounting bolt 7 is movably connected inside the supporting plate 1. By installing the exposure opening 6, the plasma ignition head 304 in the ignition assembly 3 can be extended from the exposure opening 6 during ignition, and then the protective frame 2 is retracted after the ignition is completed. This structure enhances the heat insulation protection effect of the protective frame 2 on the plasma ignition head 304.

[0027] The use method and advantages of the utility model: When the pelletizing rotary kiln plasma ignition device is used, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, first, by installing the ignition assembly 3, the elastic sleeve 301 and the telescopic rod 302 and other components can be used to protect the connecting wire tube in the protective frame 2. Then, the telescopic rod 302 is extended to allow the plasma ignition head 304 on the bottom plate 303 to ignite the furnace. After the ignition is completed, the telescopic rod 302 is retracted so that the plasma ignition head 304 can be stored in the protective frame 2, thereby avoiding the plasma ignition head 304 being in a high temperature state for a long time after ignition. Then, by installing the control assembly 4, the control can be realized through the cooperation between the console 401 and the control line 402 and other components. The display light 403 on the platform 401 can display the working status of the ignition component 3, and then the staff can use the display screen 404 and the operation button 405 to operate and control the ignition component 3 in the device, and then by installing the air outlet 5, the plasma ignition head 304 can be started, and the combustible material in the through pipe 306 will be discharged from the air outlet 5, and then by installing the exposure port 6, the plasma ignition head 304 in the ignition component 3 can be extended from the exposure port 6 for ignition during ignition, and then the protective frame 2 is retracted after the ignition is completed. This structure improves the heat insulation protection effect of the protective frame 2 on the plasma ignition head 304.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A plasma ignition device for a pelletizing rotary kiln, comprising a carrier plate (1), characterized in that: The front side of the carrier plate (1) is fixedly connected to a protective frame (2), an ignition assembly (3) is arranged inside the protective frame (2), the back side of the carrier plate (1) is arranged to a control assembly (4), the ignition assembly (3) comprises an elastic sleeve (301), the elastic sleeve (301) is fixedly connected to the front side of the carrier plate (1), a telescopic rod (302) is fixedly connected to the front side of the carrier plate (1), the front end of the telescopic rod (302) is fixedly connected to a bottom plate (303), and the front side of the bottom plate (303) is fixedly connected to a plasma ignition head (304).

2. The pelletizing rotary kiln plasma ignition device according to claim 1, characterized in that: The ignition assembly (3) further comprises a connection chamber (305), the connection chamber (305) being fixedly connected to the back side of the carrier plate (1), the back side of the connection chamber (305) being fixedly connected to a through pipe (306), and the back side of the connection chamber (305) being provided with a connection hole (307).

3. The plasma ignition device for pelletizing rotary kiln according to claim 2 is characterized in that: The control assembly (4) comprises a control console (401), wherein the control console (401) is fixedly connected to the back of the carrier plate (1), a control line (402) is fixedly connected to one side of the control console (401), and a display light (403) is fixedly connected to the top of the control console (401).

4. The plasma ignition device for a pelletizing rotary kiln according to claim 3 is characterized in that: The control component (4) further comprises a display screen (404), wherein the display screen (404) is fixedly connected to one side of the control console (401), an operation button (405) is fixedly connected to one side of the control console (401), and a movable door (406) is movably connected to one side of the control console (401).

5. The plasma ignition device for a pelletizing rotary kiln according to claim 4 is characterized in that: An air outlet hole (5) is fixedly connected to the interior of the plasma ignition head (304), and the other end of the air outlet hole (5) is connected to the through pipe (306).

6. The plasma ignition device for a pelletizing rotary kiln according to claim 5, characterized in that: The front of the protection frame (2) is provided with an exposure opening (6), and the interior of the bearing plate (1) is movably connected with a mounting bolt (7).

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