Impulse type LF furnace cover dust removal pipeline self-dust-cleaning structure

Abstract

The utility model discloses a pulse type LF furnace cover dust removal pipeline self-deashing structure which comprises a furnace cover dust removal pipeline body, a pipeline sealing assembly is arranged in the furnace cover dust removal pipeline body and comprises an outer connecting pipe, and an airflow fan assembly is arranged at the position, close to the upper end, of the outer side wall of the outer connecting pipe. The airflow fan assembly comprises an airflow turbofan, the airflow turbofan is rotationally connected to the outer side wall of the outer connecting pipe, the bottom of the airflow turbofan is fixedly connected with a driving crown gear, and a driven assembly is arranged on the outer side wall of the outer connecting pipe and located below the airflow fan assembly. The knocking assembly is driven by the airflow turbofan to knock the inner wall of the furnace cover dust removal pipeline body, so that dust mixed in airflow is not prone to adhering to the inner wall of the furnace cover dust removal pipeline body, the dust adhering to the inner wall of the furnace cover dust removal pipeline body is greatly reduced in a vibration mode, and the difficulty of follow-up pipe wall cleaning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, and in particular to a self-cleaning structure for dust removal pipelines of pulse-type LF furnace covers. Background Technology

[0002] The pulse-type LF furnace, a key piece of equipment in the steelmaking process for refining molten steel, operates on a unique pulse power supply principle. Electrical energy is transferred to the molten steel through electrodes, generating an electric arc between the electrodes and the molten steel. The high temperature emitted by the arc causes the molten steel's temperature to rise. Simultaneously, the characteristics of the pulsed current enable more effective stirring of the molten steel. This stirring effect greatly promotes various chemical reactions in the molten steel, helps remove impurities and gases, and promotes a more uniform distribution of steel composition and temperature, thereby improving the quality of the molten steel.

[0003] However, the actual operation of pulse-jet LF furnaces faces a series of challenging problems. Some lubrication components within the LF furnace are exposed to high temperatures for extended periods, making them highly susceptible to oil evaporation and carbonization, resulting in oil sludge and tar. Under the complex operating conditions inside the furnace, this oil sludge and tar continuously bind with various impurities generated within the furnace, such as metal oxide dust, refractory particles, and slag particles. Over time, these bound impurities gradually accumulate and harden on the walls of the dust collector pipes in the furnace cover. Due to their hardening properties, these impurities become extremely difficult to remove, severely impacting the dust collection efficiency of the pipes and potentially causing blockages, affecting the normal operation of the LF furnace, increasing equipment maintenance costs, and raising the risk of production interruptions.

[0004] Based on the above viewpoints, those skilled in the art have proposed a self-cleaning structure for the dust removal pipeline of a pulse-type LF furnace cover to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cleaning structure for the dust removal pipe of a pulse-type LF furnace cover. This self-cleaning structure uses an airflow turbine to drive a striking component to strike the inner wall of the dust removal pipe body, making it difficult for dust carried by the airflow to adhere to the inner wall of the dust removal pipe body. By using vibration, it significantly reduces the dust adhering to the inner wall of the dust removal pipe body, reducing the difficulty of subsequent pipe wall cleaning.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A self-cleaning structure for a pulse-type LF furnace cover dust removal pipe includes a furnace cover dust removal pipe body. Inside the furnace cover dust removal pipe body is a pipe sealing assembly. The pipe sealing assembly includes an outer connecting pipe. An airflow fan assembly is located at the upper end of the outer side wall of the outer connecting pipe. The airflow fan assembly includes an airflow turbine fan, which is rotatably connected to the outer side wall of the outer connecting pipe. A driving crown gear is fixedly connected to the bottom of the airflow turbine fan. A driven assembly is located on the outer side wall of the outer connecting pipe below the airflow fan assembly. The driven assembly includes a driven crown gear, which meshes with the driving crown gear. A bottom vibrating plate is fixedly connected to the bottom of the driven crown gear. The bottom vibrating plate is slidably connected to the outer side wall of the outer connecting pipe. A fixing frame is fixedly connected to the outer side wall of the outer connecting pipe below the bottom vibrating plate. The fixing frame is connected to the bottom vibrating plate by a spring. Several striking components are located on the outer side wall of the outer connecting pipe below the bottom vibrating plate.

[0008] Preferably, the striking assembly includes a rod sleeve frame, which is fixedly connected to the outer wall of the outer connecting pipe. A vibrating rod core is connected inside the rod sleeve frame via a spring. The vibrating rod core's extension and retraction within the rod sleeve frame achieves the striking of the inner wall of the furnace cover dust removal pipe body.

[0009] Preferably, the bottom of the bottom vibration plate is fixedly connected with a number of extrusion wedge-shaped protrusions that match the number of striking components, so the vibrating rod core has a wedge-shaped groove that matches the extrusion wedge-shaped protrusions.

[0010] Preferably, the top and bottom of the outer connecting tube are fixedly connected to an inner plate, an inner drive shaft is rotatably connected to the center of the outer connecting tube, the top and bottom of the inner drive shaft are fixedly connected to an outer plate, the outer plate is in contact with its adjacent inner plate, and matching grooves are formed on the inner plate and the outer plate.

[0011] Preferably, a bottom bevel gear is fixedly connected to the bottom center of the outer plate located at the bottom, and a drive assembly is installed on the outer side wall of the furnace cover dust removal pipe body. The bottom bevel gear drives the inner drive shaft to rotate.

[0012] Preferably, the drive assembly includes a drive motor, a drive shaft is mounted on the movable end of the drive motor, and a drive bevel gear is fixedly connected to the other end of the drive shaft, the drive bevel gear meshing with the bottom bevel gear.

[0013] Preferably, a drain pipe is provided on the outer wall of the furnace cover dust removal pipe body.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the airflow turbofan drives the striking component to strike the inner wall of the furnace cover dust removal pipe body, making it difficult for dust mixed with the airflow to stick to the inner wall of the furnace cover dust removal pipe body. The vibration method greatly reduces the dust adhering to the inner wall of the furnace cover dust removal pipe body, reducing the difficulty of subsequent cleaning of the pipe wall.

[0016] 2. In this utility model, the drive component drives the inner plates at the top and bottom to rotate, so that the grooves interlock and block the internal space of the furnace cover dust removal pipe body, thereby facilitating ultrasonic cleaning of the inside of the furnace cover dust removal pipe body. Attached Figure Description

[0017] Figure 1 This is a perspective view of a self-cleaning structure for a pulse-type LF furnace cover dust removal pipe proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of a self-cleaning dust removal pipe for a pulse-type LF furnace cover proposed in this utility model.

[0019] Figure 3 This is an isometric side sectional view of the internal structure of a self-cleaning structure for a pulse-type LF furnace cover dust removal pipe proposed in this utility model.

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.

[0022] Legend:

[0023] 1. Furnace cover dust removal duct body; 2. Inlet and outlet pipes; 3. Pipe sealing assembly; 4. Drive assembly; 5. Airflow fan assembly; 6. Driven assembly; 7. Striking assembly;

[0024] 31. Outer connecting tube; 32. Inner plate; 33. Outer plate; 34. Bottom bevel gear; 35. Inner drive shaft;

[0025] 41. Drive motor; 42. Drive shaft; 43. Drive bevel gear;

[0026] 51. Airflow turbofan; 52. Drive crown gear;

[0027] 61. Driven crown gear; 62. Bottom vibrating plate; 63. Fixing frame; 64. Extrusion wedge-shaped protrusion;

[0028] 71. Rod sleeve frame; 72. Vibrating rod core; 73. Wedge groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1-5 This utility model provides an embodiment of a self-cleaning structure for a pulse-type LF furnace cover dust removal pipe, comprising a furnace cover dust removal pipe body 1, a pipe sealing assembly 3 inside the furnace cover dust removal pipe body 1, the pipe sealing assembly 3 including an outer connecting pipe 31, an airflow fan assembly 5 located at the upper end of the outer side wall of the outer connecting pipe 31, the airflow fan assembly 5 including an airflow turbine fan 51, the airflow turbine fan 51 being rotatably connected to the outer side wall of the outer connecting pipe 31, and a drive crown gear 52 fixedly connected to the bottom of the airflow turbine fan 51, the outer side wall of the outer connecting pipe 31 being located at the airflow fan assembly. Below component 5, a driven assembly 6 is provided. The driven assembly 6 includes a driven crown gear 61, which meshes with a driving crown gear 52. A bottom vibrating plate 62 is fixedly connected to the bottom of the driven crown gear 61. The bottom vibrating plate 62 is slidably connected to the outer wall of the outer connecting tube 31. A fixing frame 63 is fixedly connected to the outer wall of the outer connecting tube 31 and the bottom of the bottom vibrating plate 62. The fixing frame 63 and the bottom vibrating plate 62 are connected by a spring. Several striking components 7 are provided on the outer wall of the outer connecting tube 31 and below the bottom vibrating plate 62. The self-cleaning structure drives the airflow turbine 51 to rotate through the airflow into the pipe sealing component 3. When the airflow turbine 51 rotates, the driving crown gear 52 at the bottom of the airflow turbine 51 drives the driven crown gear 61 to vibrate up and down, which in turn drives the bottom vibration plate 62 to vibrate up and down. When the bottom vibration plate 62 vibrates up and down, it continuously drives the striking component 7 to strike the inner wall of the furnace cover dust removal pipe body 1, making it difficult for dust mixed with the airflow to stick to the inner wall of the furnace cover dust removal pipe body 1. Through vibration, it greatly reduces the dust adhering to the inner wall of the furnace cover dust removal pipe body 1, reducing the difficulty of subsequent cleaning of the pipe wall.

[0031] The striking assembly 7 includes a rod sleeve 71, which is fixedly connected to the outer wall of the outer connecting pipe 31. A vibrating rod core 72 is connected to the inside of the rod sleeve 71 via a spring. The vibrating rod core 72 moves within the rod sleeve 71, thereby striking the inner wall of the furnace cover dust removal pipe body 1. Several extrusion wedge-shaped protrusions 64, matching the number of striking assemblies 7, are fixedly connected to the bottom of the bottom vibrating plate 62. Therefore, the vibrating rod core 72 has wedge-shaped grooves 73 that mate with the extrusion wedge-shaped protrusions 64. The extrusion wedge-shaped protrusions 64 slide along the direction of the wedge-shaped grooves 73 as they move downwards, thereby extruding and retracting the vibrating rod core 72, thus continuously striking the inner wall of the furnace cover dust removal pipe body 1.

[0032] The top and bottom of the outer connecting pipe 31 are fixedly connected to an inner plate 32. An inner drive shaft 35 is rotatably connected to the center of the outer connecting pipe 31. An outer plate 33 is fixedly connected to the top and bottom of the inner drive shaft 35. The outer plate 33 fits against its adjacent inner plate 32. Matching grooves are formed on the inner plate 32 and the outer plate 33. The rotation of the inner drive shaft 35 drives the rotation of the top and bottom inner plates 32, thereby achieving the overlap and intersection of the grooves, which in turn enables airflow and sealing of the internal space of the furnace cover dust removal pipe body 1. A bottom bevel tooth 34 is fixedly connected to the center of the bottom of the outer plate 33. A drive assembly 4 is installed on the outer wall of the furnace cover dust removal pipe body 1. The bottom bevel tooth 34 drives the inner drive shaft 35 to rotate. The drive assembly 4 includes a drive motor 41. A drive shaft 42 is installed on the movable end of the drive motor 41. A drive bevel tooth 43 is fixedly connected to the other end of the drive shaft 42. The drive bevel tooth 43 meshes with the bottom bevel tooth 34. The drive motor 41 drives the drive shaft 42 to rotate, which in turn drives the drive bevel gear 43 to rotate. The drive bevel gear 43 drives the bottom bevel gear 34 to rotate, which in turn drives the inner drive shaft 35 to rotate.

[0033] A water inlet / outlet pipe 2 is provided on the outer wall of the furnace cover dust removal pipe body 1. Water can be injected into the interior of the furnace cover dust removal pipe body 1 through the water inlet / outlet pipe 2, thereby facilitating ultrasonic cleaning of the interior of the furnace cover dust removal pipe body 1.

[0034] Working principle: This structure drives the drive shaft 42 to rotate via the drive motor 41, which in turn drives the drive bevel gear 43 to rotate. The drive bevel gear 43 drives the bottom bevel gear 34 to rotate, which in turn drives the inner drive shaft 35 to rotate. The rotation of the inner drive shaft 35 drives the inner plates 32 at the top and bottom to rotate, thereby achieving the overlap and interlacing of the troughs. This allows for airflow and the sealing of the internal space of the furnace cover dust removal pipe body 1. When the troughs overlap, the self-cleaning structure drives the airflow turbine 51 to rotate through the airflow flowing into the pipe sealing component 3. When the airflow turbine 51 rotates, the drive crown gear at the bottom of the airflow turbine 51... Wheel 52 drives the driven crown gear 61 to vibrate up and down, which in turn drives the bottom vibrating plate 62 to vibrate up and down. When the bottom vibrating plate 62 vibrates up and down, it continuously drives the striking component 7 to strike the inner wall of the furnace cover dust removal pipe body 1, making it difficult for dust mixed with the airflow to stick to the inner wall of the furnace cover dust removal pipe body 1. It greatly reduces the dust adhering to the inner wall of the furnace cover dust removal pipe body 1 through vibration, reducing the difficulty of subsequent cleaning of the pipe wall. When deep cleaning is required, the tanks are interwoven, and water can be injected into the interior of the furnace cover dust removal pipe body 1 through the water injection and drainage pipe 2, which facilitates ultrasonic cleaning of the interior of the furnace cover dust removal pipe body 1.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning structure for a pulse LF furnace cover dust removal pipeline, comprising a furnace cover dust removal pipeline body (1), characterized in that: The inside of the furnace cover dust removal pipeline body (1) is provided with a pipeline sealing assembly (3), the outer side wall of the outer connecting pipe (31) is provided with an air flow fan assembly (5) at the upper end position, the air flow fan assembly (5) comprises an air flow vortex fan (51), the air flow vortex fan (51) is rotatably connected to the outer side wall of the outer connecting pipe (31), the bottom of the air flow vortex fan (51) is fixedly connected with a driving crown gear (52), the outer side wall of the outer connecting pipe (31) and below the air flow fan assembly (5) is provided with a driven assembly (6), the driven assembly (6) comprises a driven crown gear (61), the driven crown gear (61) is meshed with the driving crown gear (52), the bottom of the driven crown gear (61) is fixedly connected with a bottom vibration plate (62), the bottom vibration plate (62) is limitingly and slidably connected to the outer side wall of the outer connecting pipe (31), the outer side wall of the outer connecting pipe (31) and below the bottom vibration plate (62) is fixedly connected with a fixed frame (63), the fixed frame (63) is connected with the bottom vibration plate (62) through a spring, and the outer side wall of the outer connecting pipe (31) and below the bottom vibration plate (62) is provided with a plurality of knocking assemblies (7).

2. A self-cleaning dust removal structure for a dust removal pipe of a cover of a pulse LF furnace according to claim 1, characterized in that: The knocking assembly (7) comprises a rod sleeve frame (71) fixedly connected to the outer side wall of the outer connecting pipe (31), and the inside of the rod sleeve frame (71) is connected with a vibration rod core (72) through a spring.

3. A self-cleaning dust removal structure for a dust removal pipe of a cover of a pulse LF furnace according to claim 2, characterized in that: The bottom of the bottom vibration plate (62) is fixedly connected with a plurality of extrusion wedge-shaped protrusions (64) matched with the knocking assemblies (7) in number, and a wedge-shaped groove (73) matched with the extrusion wedge-shaped protrusions (64) is formed in the rod body of the vibration rod core (72).

4. The self-cleaning structure of the dust removal pipeline of the cover of the pulse LF furnace according to claim 1, characterized in that: The top and bottom of the outer connecting pipe (31) are fixedly connected with inner plates (32), the inside of the outer connecting pipe (31) is rotatably connected with an inner driving shaft (35) at the center, the top and bottom of the inner driving shaft (35) are fixedly connected with outer plates (33), the outer plates (33) are in close contact with the adjacent inner plates (32), and the inner plates (32) and the outer plates (33) are provided with matched groove bodies.

5. A self-cleaning dust removal structure for a dust removal pipe of a cover of a pulse LF furnace according to claim 4, characterized in that: The bottom center of the outer plate (33) at the bottom is fixedly connected with a bottom bevel gear (34), and a driving assembly (4) is installed on the outer side wall of the furnace cover dust removal pipeline body (1).

6. A self-cleaning dust removal structure for a cover dust removal pipe of a pulse LF furnace according to claim 5, characterized in that: The driving assembly (4) comprises a driving motor (41), a driving shaft (42) is installed on the movable end of the driving motor (41), the other end of the driving shaft (42) is fixedly connected with a driving bevel gear (43), and the driving bevel gear (43) is meshed with the bottom bevel gear (34).

7. The self-cleaning dust removal structure of the cover dust removal pipeline of the pulse LF furnace according to claim 1, characterized in that: The outer wall of the furnace cover dust removal pipeline body (1) is provided with a water injection and drainage pipe (2).

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