Electrode lifting device of ladle refining furnace

Abstract

The utility model discloses an electrode lifting device of a ladle refining furnace, and mainly relates to the technical field of lifting devices. Comprising a furnace body and three electrode bodies, the upper end of the furnace body is provided with a furnace cover, the upper surface of the furnace cover is provided with an adjusting structure, the adjusting structure comprises a servo motor, the lower surface of the servo motor is fixedly connected with the furnace cover, the output end of the servo motor is fixedly connected with a roller, the arc surface of the roller is in transmission connection with a belt, and the inner wall of the belt is in transmission connection with a rotating ring; an annular hole is formed in the lower surface of the rotating ring, and a plurality of supporting plates are slidably connected to the inner wall of the annular hole. The electrode has the advantages that when a ladle refining furnace is used for refining molten steel, the electrode body can be automatically rotated and adjusted in a lifting mode, by adjusting the position and the angle of the electrode, the utilization efficiency of energy can be optimized, it is guaranteed that the heating and smelting effects of the electrode are maximized, and therefore energy consumption is reduced, and smelting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to an electrode lifting device for a ladle refining furnace. Background Art

[0002] Ladle refining furnaces usually use three electrodes for furnace operation and refining process control. These electrodes are installed on the top of the furnace to control problems inside the furnace.

[0003] The utility model with announcement number CN219907753U discloses a ladle refining furnace, and the key points of its technical solution are: it comprises a refining furnace body, the upper end surface of the refining furnace body is provided with a cover body, the cover body is fixedly provided with a graphite electrode, the outer wall of the cover body and on both sides are fixedly provided with lifting blocks, the outer wall of the refining furnace body and at the lower end of the lifting block are fixedly provided with a fixing plate, the upper end surface of the fixing plate is fixedly provided with a cylinder, the output end of the cylinder is fixedly connected to the lower end surface of the lifting block, the lower end surface of the cover body is fixedly provided with a placement block, the upper end surface of the refining furnace body is correspondingly provided with a placement groove, the placement block is located inside the placement groove, so that the user can control the cylinder to enable its output end to drive the lifting block to move upward, thereby driving the cover body to move upward, so as to facilitate the addition of slag to be refined into the interior of the refining furnace body, which is convenient for use.

[0004] With regard to the above-mentioned relevant contents, the following technical defects were found: the ladle refining furnace cannot adjust the position and depth of the electrode, which will affect the stability and temperature distribution of the arc, and will affect the quality and composition stability of the molten steel, thereby reducing the efficiency of molten steel smelting. Utility Model Content

[0005] The utility model aims to solve the problem that the position and depth of the electrode of the ladle refining furnace cannot be adjusted in the prior art, which reduces the efficiency of molten steel smelting, and proposes an electrode lifting device for the ladle refining furnace.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electrode lifting device for a ladle refining furnace, comprising a furnace body and three electrode bodies, a furnace cover is installed on the upper end of the furnace body, an adjustment structure is provided on the upper surface of the furnace cover, the adjustment structure comprises a servo motor, the lower surface of the servo motor is fixedly connected to the furnace cover, a roller is fixedly connected to the output end of the servo motor, a belt is connected to the circular arc surface of the roller, a rotating ring is connected to the inner wall of the belt, an annular hole is opened on the lower surface of the rotating ring, and the annular hole is provided on the lower surface of the rotating ring. The inner wall of the hole is slidably connected with several support plates, the lower surface of the support plate is fixedly connected to the upper surface of the furnace cover, the upper surface of the rotating ring is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving bevel gear, the upper surface of the rotating ring is rotatably connected with a screw rod, the circular arc surface of the screw rod is fixedly connected with a driven bevel gear, the driving bevel gear is meshed with the driven bevel gear, the circular arc surface of the screw rod is threadedly connected with an ear plate, one side of the ear plate is fixedly connected with a fixing ring, and the electrode body is fixedly connected to the inner wall of the fixing ring.

[0007] The effect achieved by the above components is: by setting up the adjustment structure, the electrode body can be automatically rotated and raised and lowered when using the ladle refining furnace to refine molten steel. By adjusting the position and angle of the electrode, the energy utilization efficiency can be optimized to ensure that the heating and smelting effects of the electrode are maximized, thereby reducing energy consumption and improving smelting efficiency.

[0008] Preferably, a positioning plate is fixedly connected to the outer wall of the fixing ring, a positioning rod is slidably penetrated through the surface of the positioning plate, and the lower end of the positioning rod is fixedly connected to the upper surface of the rotating ring.

[0009] The effect achieved by the above components is that when the screw drives the fixing ring and the electrode body to move up and down, the positioning plate fixed on the fixing ring will move along the arc surface of the positioning rod, thereby achieving the effect of improving the stability of the electrode body lifting process.

[0010] Preferably, a reinforcing rib is fixedly connected to one side of the support plate, the lower surface of the reinforcing rib is fixedly connected to the upper surface of the furnace cover, and the reinforcing rib is specifically made of aluminum alloy.

[0011] The effect achieved by the above components is: by arranging reinforcing ribs made of aluminum alloy at the connection between the support plate and the furnace cover, the effect of improving the strength of the connection between the support plate and the furnace cover is achieved.

[0012] Preferably, the screw rod is made of stainless steel.

[0013] The effect achieved by the above components is: by setting the screw rod to be made of stainless steel, the anti-oxidation performance of the screw rod can be effectively improved, thereby increasing the service life of the screw rod.

[0014] Preferably, an auxiliary structure is provided on the upper surface of the furnace cover, and the auxiliary structure includes a partition, which is fixedly connected to the upper surface of the furnace cover, a screw is threaded through the side surface of the partition, one end of the screw is rotatably connected to a top block, the cross-section of the top block is a right-angled trapezoid, a guide rod is slidably penetrated through the side surface of the partition, and one end of the guide rod is fixedly connected to the top block.

[0015] The effect achieved by the above components is: by setting up the auxiliary structure, during the operation of the adjustment structure, the top block can be adjusted to keep the belt in a taut state. The taut belt can effectively transmit power and avoid slipping of the belt.

[0016] Preferably, the oblique waist side of the top block is rotatably connected to a pulley, and the arc surface of the pulley abuts against the belt.

[0017] The effect achieved by the above components is that the pulley can convert the sliding friction between the top block and the belt into rolling friction, reducing the resistance between the top block and the belt, thereby reducing the influence of the top block on the normal operation of the belt.

[0018] Preferably, a plurality of rotating plates are fixedly connected to the arc surface of the screw, and the rotating plates are evenly distributed on the arc surface of the screw.

[0019] The effect achieved by the above components is that a person can rotate the screw rod with the help of the rotating plate, thereby achieving the effect of facilitating the rotation of the screw rod.

[0020] In summary, the beneficial effects of the utility model are:

[0021] In the utility model, by setting up an adjustment structure, the electrode body can be automatically rotated and raised and lowered when using a ladle refining furnace to refine molten steel. By adjusting the position and angle of the electrode, the energy utilization efficiency can be optimized to ensure that the heating and smelting effects of the electrode are maximized, thereby reducing energy consumption and improving smelting efficiency.

[0022] In the utility model, by setting the auxiliary structure, during the operation of the adjustment structure, the top block can be adjusted to make the belt in a tight state. The tight belt can effectively transmit power and avoid the belt from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Attached Figure 2 It is a structural schematic diagram of the regulating structure of the utility model;

[0025] Attached Figure 3 It is a partial structural schematic diagram of the regulating structure of the utility model;

[0026] Attached Figure 4 It is a structural schematic diagram of the auxiliary structure of the utility model.

[0027] The numbers shown in the accompanying drawings are: 1. furnace body; 2. furnace cover; 3. adjustment structure; 301. servo motor; 302. roller; 303. belt; 304. swivel; 305. annular hole; 306. support plate; 307. motor; 308. active bevel gear; 309. screw; 310. driven bevel gear; 311. ear plate; 312. fixing ring; 313. positioning plate; 314. positioning rod; 315. reinforcing rib; 4. auxiliary structure; 41. partition; 42. screw; 43. top block; 44. guide rod; 45. pulley; 46. swivel plate; 5. electrode body. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0029] Reference Figure 1 As shown, the utility model provides a technical solution: an electrode lifting device for a ladle refining furnace, comprising a furnace body 1 and three electrode bodies 5, a furnace cover 2 is installed at the upper end of the furnace body 1, an adjustment structure 3 is provided on the upper surface of the furnace cover 2, and an auxiliary structure 4 is provided on the upper surface of the furnace cover 2.

[0030] The specific settings and functions of the adjustment structure 3 and the auxiliary structure 4 are described in detail below.

[0031] Reference Figure 2 and Figure 3As shown, in this embodiment: the adjustment structure 3 includes a servo motor 301, the lower surface of the servo motor 301 is fixedly connected to the furnace cover 2, the output end of the servo motor 301 is fixedly connected to a roller 302, the arc surface of the roller 302 is transmission-connected to a belt 303, the inner wall of the belt 303 is transmission-connected to a swivel 304, the lower surface of the swivel 304 is provided with an annular hole 305, the inner wall of the annular hole 305 is slidably connected to a plurality of support plates 306, the lower surface of the support plate 306 is fixedly connected to the upper surface of the furnace cover 2, the upper surface of the swivel 304 is fixedly connected to a motor 307, and the motor The output end of the swivel 307 is fixedly connected with a driving bevel gear 308, the upper surface of the rotating ring 304 is rotatably connected with a screw rod 309, the arc surface of the screw rod 309 is fixedly connected with a driven bevel gear 310, the driving bevel gear 308 is meshed with the driven bevel gear 310, the arc surface of the screw rod 309 is threadedly connected with an ear plate 311, one side of the ear plate 311 is fixedly connected with a fixing ring 312, and the electrode body 5 is fixedly connected with the inner wall of the fixing ring 312. By setting the adjustment structure 3, when using the ladle refining furnace to refine molten steel, the electrode body 5 can be automatically rotated and raised and lowered. By adjusting the position and angle of the electrode, the energy utilization efficiency can be optimized to ensure that the heating and smelting effects of the electrode are maximized, thereby reducing energy consumption and improving smelting efficiency. The outer wall of the fixed ring 312 is fixedly connected with a positioning plate 313, and a positioning rod 314 is slidably penetrated on the surface of the positioning plate 313. The lower end of the positioning rod 314 is fixedly connected to the upper surface of the rotating ring 304. When the screw rod 309 drives the fixed ring 312 and the electrode body 5 to move up and down, the positioning plate 313 fixed on the fixed ring 312 will move along the arc surface of the positioning rod 314, thereby improving the lifting and lowering of the electrode body 5. In order to improve the process stability, a reinforcing rib 315 is fixedly connected to one side of the support plate 306, and the lower surface of the reinforcing rib 315 is fixedly connected to the upper surface of the furnace cover 2. The reinforcing rib 315 is specifically made of aluminum alloy. By setting the reinforcing rib 315 made of aluminum alloy at the connection between the support plate 306 and the furnace cover 2, the strength of the connection between the support plate 306 and the furnace cover 2 is improved. The screw rod 309 is specifically made of stainless steel. By setting the screw rod 309 to be made of stainless steel, the oxidation resistance of the screw rod 309 can be effectively improved, thereby increasing the service life of the screw rod 309.

[0032] Reference Figure 4As shown, in this embodiment: the auxiliary structure 4 includes a partition 41, the partition 41 is fixedly connected to the upper surface of the furnace cover 2, a screw rod 42 is threadedly penetrated on the side of the partition 41, one end of the screw rod 42 is rotatably connected to a top block 43, the cross section of the top block 43 is a right-angled trapezoid, a guide rod 44 is slidably penetrated on the side of the partition 41, one end of the guide rod 44 is fixedly connected to the top block 43, by setting the auxiliary structure 4, during the operation of the adjustment structure 3, the top block 43 can be adjusted to make the belt 303 in a tight state, the tight belt 303 can effectively transmit power, and can avoid the belt 303 slips, the oblique waist side of the top block 43 is rotatably connected to the pulley 45, and the arc surface of the pulley 45 abuts against the belt 303. The pulley 45 can convert the sliding friction between the top block 43 and the belt 303 into rolling friction, reducing the resistance between the top block 43 and the belt 303, thereby reducing the influence of the top block 43 on the normal operation of the belt 303. The arc surface of the screw 42 is fixedly connected to a plurality of rotating plates 46, and the rotating plates 46 are evenly distributed on the arc surface of the screw 42. People can use the rotating plates 46 to rotate the screw 42, thereby achieving the effect of facilitating the rotation of the screw 42.

[0033] Detailed description of usage: In the utility model, when it is necessary to use the ladle refining furnace to refine molten steel, first open the furnace cover 2 to put the raw materials into the furnace body 1, and then close the furnace cover 2. When the furnace cover 2 is closed, the electrode body 5 is heated by the electric arc to convert electrical energy into thermal energy to heat the molten steel in the furnace and promote the chemical reaction in the smelting process. When it is necessary to adjust the position and depth of the electrode body 5, first start the servo motor 301 to drive the roller 302 to rotate, the roller 302 drives the belt 303 to rotate, the belt 303 drives the rotating ring 304 to rotate, and at the same time, the support plate 306 fixed on the furnace cover 2 will rotate along the inner wall of the annular hole 305 on the lower surface of the rotating ring 304, the rotating ring 304 drives the fixed ring 312, and the fixed ring 312 drives the electrode body 5, so that the electrode body 5 can be rotated, and at the same time, the motor 307 can be started to drive the active bevel gear 308 to rotate, and the active bevel gear 308 drives The driven bevel gear 310 rotates, and the driven bevel gear 310 drives the screw rod 309 to rotate. The screw rod 309 drives the ear plate 311 on its arc surface, and then the ear plate 311 drives the fixing ring 312 and the electrode body 5 to move up and down. At this time, the electrode body 5 can be rotated and raised and lowered. In the process of the screw rod 309 driving the fixing ring 312 and the electrode body 5 to move up and down, the positioning plate 313 fixed on the fixing ring 312 will move along the arc surface of the positioning rod 314, so as to achieve the effect of improving the stability of the lifting process of the electrode body 5. In addition, by setting a reinforcing rib 315 made of aluminum alloy at the connection between the support plate 306 and the furnace cover 2, the effect of improving the strength of the connection between the support plate 306 and the furnace cover 2 is achieved. Finally, by setting the screw rod 309 to stainless steel, the oxidation resistance of the screw rod 309 can be effectively improved, thereby improving the service life of the screw rod 309.

[0034] In the utility model, when it is necessary to adjust the top block 43 to make the belt 303 in a taut state, the personnel can rotate the screw 42 with the help of the rotating plate 46, and the screw 42 drives the top block 43 to make the top block 43 move in the guide limit of the guide rod 44 in the direction close to the belt 303, and the top block 43 drives the pulley 45, and then the pulley 45 squeezes the belt 303, so that the belt 303 can be put in a taut state, wherein the pulley 45 can convert the sliding friction between the top block 43 and the belt 303 into rolling friction, thereby reducing the resistance between the top block 43 and the belt 303, thereby reducing the influence of the top block 43 on the normal operation of the belt 303.

Claims

1. An electrode lifting device for a ladle refining furnace, comprising a furnace body (1) and three electrode bodies (5), characterized in that: A furnace cover (2) is installed at the upper end of the furnace body (1), and an adjustment structure (3) is provided on the upper surface of the furnace cover (2). The adjustment structure (3) comprises a servo motor (301), and the lower surface of the servo motor (301) is fixedly connected to the furnace cover (2). The output end of the servo motor (301) is fixedly connected to a roller (302), and the circular arc surface of the roller (302) is transmission-connected to a belt (303), and the inner wall of the belt (303) is transmission-connected to a rotating ring (304), and the lower surface of the rotating ring (304) is provided with an annular hole (305), and the inner wall of the annular hole (305) is slidably connected to a plurality of support plates (306), and the lower surface of the support plate (306) The upper surface of the rotating ring (304) is fixedly connected to the upper surface of the furnace cover (2); the upper surface of the rotating ring (304) is fixedly connected to a motor (307); the output end of the motor (307) is fixedly connected to an active bevel gear (308); the upper surface of the rotating ring (304) is rotatably connected to a screw rod (309); the circular arc surface of the screw rod (309) is fixedly connected to a driven bevel gear (310); the active bevel gear (308) is meshed with the driven bevel gear (310); the circular arc surface of the screw rod (309) is threadedly connected to an ear plate (311); one side of the ear plate (311) is fixedly connected to a fixing ring (312); and the electrode body (5) is fixedly connected to the inner wall of the fixing ring (312).

2. The electrode lifting device for a ladle refining furnace according to claim 1, characterized in that: A positioning plate (313) is fixedly connected to the outer wall of the fixing ring (312), a positioning rod (314) is slidably penetrated through the surface of the positioning plate (313), and the lower end of the positioning rod (314) is fixedly connected to the upper surface of the rotating ring (304).

3. The electrode lifting device for a ladle refining furnace according to claim 1, characterized in that: A reinforcing rib (315) is fixedly connected to one side of the support plate (306), and the lower surface of the reinforcing rib (315) is fixedly connected to the upper surface of the furnace cover (2). The reinforcing rib (315) is specifically made of aluminum alloy.

4. The electrode lifting device for a ladle refining furnace according to claim 1, characterized in that: The screw rod (309) is specifically made of stainless steel.

5. The electrode lifting device for a ladle refining furnace according to claim 1, characterized in that: An auxiliary structure (4) is provided on the upper surface of the furnace cover (2), and the auxiliary structure (4) includes a partition (41), and the partition (41) is fixedly connected to the upper surface of the furnace cover (2). A screw rod (42) is threadedly penetrated through the side surface of the partition (41), and one end of the screw rod (42) is rotatably connected to a top block (43), and the cross section of the top block (43) is a right-angled trapezoid. A guide rod (44) is slidably penetrated through the side surface of the partition (41), and one end of the guide rod (44) is fixedly connected to the top block (43).

6. The electrode lifting device for a ladle refining furnace according to claim 5, characterized in that: The oblique waist side of the top block (43) is rotatably connected to a pulley (45), and the arc surface of the pulley (45) is in contact with the belt (303).

7. The electrode lifting device for a ladle refining furnace according to claim 5, characterized in that: A plurality of rotating plates (46) are fixedly connected to the circular arc surface of the screw rod (42), and the rotating plates (46) are evenly distributed on the circular arc surface of the screw rod (42).

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