Dumping mechanism for heating furnace

Abstract

The utility model belongs to the technical field of steelmaking, and relates to a dumping mechanism for a heating furnace, which comprises a base plate and two support frames fixedly mounted on the base plate, the heating furnace is rotatably mounted on the two support frames, a mounting frame is fixedly mounted at the top of the base plate, a reel is rotatably mounted on the mounting frame, a traction rope is wound on the reel, and the traction rope is fixedly mounted on the base plate. The bottom end of the traction rope is fixedly connected with the outer wall of one side of the heating furnace, a driving motor is installed on the installation frame, and the shaft end of the winding wheel is fixedly connected with an output shaft of the driving motor. The safety rope is limited through the traction rope, under the condition that the traction rope is broken, the multiple spring rods drive the two transverse moving blocks to transversely move rapidly, the multiple clamping teeth are used for clamping the two sliding blocks to conduct emergency braking on the inclined heating furnace, equipment damage caused by falling of the heating furnace is effectively avoided, and the service life of the heating furnace is prolonged. And meanwhile, overflow of high-temperature liquid steel is effectively avoided, and the safety is improved to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of steelmaking, and in particular relates to a dumping mechanism for a heating furnace. Background Art

[0002] The working principle of the heating furnace is to put the workpiece into the inductor (coil). When an alternating current of a certain frequency is passed through the inductor, an alternating magnetic field is generated around it. The electromagnetic induction of the alternating magnetic field generates a closed induced current in the workpiece. The distribution of the induced current on the cross section of the workpiece is very uneven. The current density on the surface of the workpiece is very high and gradually decreases inward. This phenomenon is called the skin effect. The electrical energy of the high-density current on the surface of the workpiece is converted into thermal energy, which increases the temperature of the surface, that is, surface heating is achieved.

[0003] After the material is heated to liquid, it needs to be discharged from the heating furnace. Due to the high temperature in the furnace, a common method is to tip the heating furnace. Currently, most methods use traction or hydraulics to tip the heating furnace. However, no matter which method is used, there are no protective measures. During the tipping of the heating furnace, once the driving equipment fails (hydraulic equipment is damaged, the traction rope breaks accidentally) or the power is cut off, the heating furnace will quickly return to its initial state from the tilted state, which will undoubtedly cause the liquid steel to fluctuate and easily cause safety accidents.

[0004] Therefore, it is necessary to provide a new heating furnace dumping mechanism to solve the above-mentioned technical problems. Summary of the invention

[0005] The utility model aims to provide a dumping mechanism for a heating furnace which is convenient to operate and has improved safety.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a tilting mechanism for a heating furnace, comprising a base plate and two support frames fixedly mounted on the base plate, the heating furnace is rotatably mounted on the two support frames, a mounting frame is fixedly mounted on the top of the base plate, a winding wheel is rotatably mounted on the mounting frame, a traction rope is wound on the winding wheel, the bottom end of the traction rope is fixedly connected to one side outer wall of the heating furnace, a driving motor is mounted on the mounting frame, and the shaft end of the winding wheel is fixedly connected to the output shaft of the driving motor.

[0007] Furthermore, a fixed pulley is installed on one side outer wall of the mounting frame, a hook is fixedly installed on one side outer wall of the heating furnace, and the bottom end of the traction rope is fixedly connected to the hook after passing around the fixed pulley.

[0008] Furthermore, wing plate bins are fixedly installed on the inner walls on both sides of the mounting frame, and strip openings are symmetrically opened on the two wing plate bins on the side close to the heating furnace. Two sliding blocks are fixedly installed on the outer wall on one side of the heating furnace, and the two sliding blocks respectively pass through the two strip openings and are slidably connected to the strip openings.

[0009] Furthermore, a transverse block is slidably installed in the wing plate bin, a plurality of clamping teeth are fixedly installed on one side of the transverse block, a plurality of spring rods are fixedly installed on an inner wall of one side of the wing plate bin, and one end of the spring rods is fixedly connected to the transverse block respectively.

[0010] Furthermore, a second fixed pulley is fixedly installed on the top of the two wing panel bins, a third fixed pulley is fixedly installed on one side outer wall of the two wing panel bins, and a safety rope is sleeved on the second fixed pulley and the third fixed pulley.

[0011] Furthermore, a ring is fixedly installed on the top end of the safety rope, and the ring is movably sleeved on the traction rope. A connecting plate is fixedly installed on the bottom end of the safety rope, and both sides of the connecting plate are fixedly connected to the two transverse blocks respectively.

[0012] The utility model has the following beneficial effects: during the process of tilting the heating furnace, the tilting mechanism of the heating furnace of the utility model limits the safety rope through the traction rope, and in the case of the traction rope breaking, the multiple spring rods drive the two transverse blocks to move transversely quickly, and the two sliding blocks are clamped by multiple clamping teeth to perform emergency braking on the tilted heating furnace, which not only effectively avoids the equipment damage caused by the falling of the heating furnace, but also effectively avoids the overflow of high-temperature liquid steel, thereby improving safety to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a dumping mechanism for a heating furnace.

[0014] Figure 2 yes Figure 1 A schematic side view of the structure of the two wing silos shown.

[0015] Figure 3 yes Figure 1 Schematic diagram of the connection status of the traction rope and the heating furnace shown.

[0016] Figure 4 yes Figure 1 A schematic side view of the structure of the two wing panel bins from another perspective is shown.

[0017] Figure 5 yes Figure 1 A schematic diagram of the side sectional structure of two wing silos is shown.

[0018] Numbers in the figure: 1. base plate; 2. support frame; 3. bearing seat; 4. heating furnace; 5. mounting frame; 6. winding wheel; 7. driving motor; 8. fixed pulley 1; 9. hook; 10. traction rope; 11. wing plate bin; 12. fixed pulley 2; 13. fixed pulley 3; 14. sliding block; 15. strip mouth; 16. transverse block; 17. clamping teeth; 18. spring rod; 19. connecting plate; 20. safety rope; 21. ring. DETAILED DESCRIPTION

[0019] The utility model will now be described in further detail with reference to the accompanying drawings.

[0020] A tilting mechanism for a heating furnace comprises a base plate 1 and two support frames 2 fixedly mounted on the base plate 1, wherein the two support frames 2 are respectively fixedly mounted on the two side edges of the base plate 1, and the two support frames 2 are symmetrically arranged based on the midpoint of the base plate 1, and a heating furnace 4 is rotatably mounted on the two support frames 2. Figure 1 As shown, the tops of the two support frames 2 are fixedly mounted with bearing seats 3, and two short shafts are fixedly mounted on the outer wall of one side of the heating furnace 4, and the two short shafts are rotatably connected to the two bearing seats 3 respectively. A mounting frame 5 is fixedly mounted on the top of the base plate 1, and a winding wheel 6 is rotatably mounted on the mounting frame 5. A traction rope 10 is wound around the winding wheel 6, and the traction rope 10 is fixedly connected to the outer wall of one side of the heating furnace 4. The top end of the traction rope 10 is fixedly mounted on the winding wheel 6 as a fixed end, and the bottom end of the traction rope 10 is fixedly connected to the heating furnace 4 as a free end. A driving motor 7 is mounted on the mounting frame 5, and the shaft end of the winding wheel 6 is fixedly connected to the output shaft of the driving motor 7, combined with Figure 2 As shown, two vertical plates are fixedly mounted on the mounting frame 5, the winding wheel 6 is fixedly mounted on the outer wall of one side of the two vertical plates close to each other, the driving motor 7 is fixedly mounted on the corresponding vertical plate, and the axial end of the winding wheel 6 passes through the corresponding vertical plate and is fixedly connected to the output shaft of the driving motor 7.

[0021] A fixed pulley 8 is installed on one side outer wall of the mounting frame 5, a hook 9 is fixedly installed on one side outer wall of the heating furnace 4, the bottom end of the traction rope 10 passes around the fixed pulley 8 and is fixedly connected to the hook 9, a cross plate is fixedly installed on the mounting frame 5, and the fixed pulley 8 is fixedly installed on the cross plate.

[0022] The wing plate bins 11 are fixedly mounted on the inner walls of both sides of the mounting frame 5. Figure 3 , Figure 5 As shown, one side of the two wing plate bins 11 close to the heating furnace 4 is set as an arc surface, and a strip opening 15 is opened on the outer wall of the side where the two wing plate bins 11 are close to each other. Two sliding blocks 14 are fixedly installed on the outer wall of one side of the heating furnace 4. The two sliding blocks 14 respectively penetrate the two strip openings 15 and are slidably connected thereto. The two sliding blocks 14 are cylindrical, and the two sliding blocks 14 are mirror-imaged based on the midpoint of the heating furnace 4. The two strip openings 15 are both arc openings, and the trajectory of the two strip openings 15 is the same as the trajectory of the two sliding blocks 14 rotating when the heating furnace 4 is tilted.

[0023] A transverse block 16 is slidably installed in each of the two wing plate bins 11. One side of the two transverse blocks 16 close to the strip opening 15 is set to an arc surface, and the curvature of the arc surface is the same as the curvature of the strip opening 15. A plurality of clamping teeth 17 are fixedly installed on one side of the two transverse blocks 16. The plurality of clamping teeth 17 are distributed in an array along the arc surface, and the spacing between two adjacent clamping teeth 17 is slightly larger than the diameter of the sliding block 14. A plurality of spring rods 18 are fixedly installed on the inner wall of one side of the two wing plate bins 11, and one end of the plurality of spring rods 18 is fixedly connected to the two transverse blocks 16 respectively.

[0024] The top of the two wing plate bins 11 is fixedly installed with a fixed pulley 2 12, and the outer wall of one side of the two wing plate bins 11 is fixedly installed with a fixed pulley 3 13. Figure 2 As shown, brackets and lugs are fixedly installed on the top and one side of the two wing bins 11, the second fixed pulley 12 is rotatably installed on the two brackets, the third fixed pulley 13 is rotatably installed on the two lugs, and a safety rope 20 is sleeved on the second fixed pulley 12 and the third fixed pulley 13.

[0025] The top of the safety rope 20 is fixedly provided with a collar 21, which is movably sleeved on the traction rope 10, and the bottom of the safety rope 20 is fixedly provided with a connecting plate 19, which is combined with the Figure 4 , Figure 5 As shown, avoidance grooves are also provided at the larger edges of the two strip-shaped openings 15 , and the two ends of the connecting plate 19 respectively pass through the two avoidance grooves, and the two sides of the connecting plate 19 are respectively fixedly connected to the two transverse blocks 16 .

[0026] The working principle of the dumping mechanism for a heating furnace provided by the utility model is as follows:

[0027] In daily steelmaking operations, materials are placed in the heating furnace 4 for processing. When the heating furnace 4 needs to be dumped, it is only necessary to start the drive motor 7. The drive motor 7 drives the output shaft to rotate and then drives the winding wheel 6 to rotate, thereby contracting the traction rope 10. The contraction of the traction rope 10 will lift the hook 9, so that the heating furnace 4 gradually rotates around the two bearing seats 3 as the axis, and finally the heating furnace 4 is tilted to pour out the liquid steel therein.

[0028] At the same time, during the tilting and rotation of the heating furnace 4, the two sliding blocks 14 will slide and rise in the two strip openings 15 respectively, and the traction rope 10 will remain taut under the traction of the heavier heating furnace 4. The taut traction rope 10 will pull the ring 21, thereby applying a traction force to the safety rope 20, and the bottom end of the safety rope 20 will pull the connecting plate 19 and the two transverse blocks 16, so that the multiple spring rods 18 are in a compressed energy storage state.

[0029] Based on the above state, when the driving motor 7 retracts the traction rope 10 to lift the bottom end of the heating furnace 4 and realizes the process of tipping over the heating furnace 4, once the traction rope 10 breaks, the pulling force of the traction rope 10 on the ring 21 disappears instantly, and the spring rod 18 instantly loses the pulling force and quickly resets, so that the connecting plate 19 and the transverse block 16 move laterally quickly, and the clamping teeth 17 will quickly clamp on the two sliding blocks 14, so that the heating furnace 4 is in a tilted state and will not rotate in the opposite direction and shake under the effect of gravity, thereby effectively avoiding damage to the equipment and reducing the occurrence of safety accidents.

[0030] The utility model provides a tipping mechanism for a heating furnace. During the tipping process of the heating furnace 4, the safety rope 20 is limited by the traction rope 10, and in the case that the traction rope 10 breaks, the spring rod 18 drives the two transverse blocks 16 to move transversely quickly, and the two sliding blocks 14 are clamped by a plurality of clamping teeth 17 to perform emergency braking on the tilted heating furnace 4, which not only effectively avoids the equipment damage caused by the falling of the heating furnace 4, but also effectively avoids the overflow of high-temperature liquid steel, thereby improving safety to a certain extent.

[0031] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention.

[0032] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A tilting mechanism for a heating furnace, comprising a base plate and two support frames fixedly mounted on the base plate, characterized in that: A heating furnace is rotatably mounted on the two support frames, a mounting frame is fixedly mounted on the top of the base plate, a winding wheel is rotatably mounted on the mounting frame, a traction rope is wound around the winding wheel, the bottom end of the traction rope is fixedly connected to one side outer wall of the heating furnace, a driving motor is mounted on the mounting frame, and the shaft end of the winding wheel is fixedly connected to the output shaft of the driving motor.

2. The dumping mechanism for a heating furnace according to claim 1, characterized in that: A fixed pulley is installed on one side outer wall of the mounting frame, a hook is fixedly installed on one side outer wall of the heating furnace, and the bottom end of the traction rope is fixedly connected with the hook after passing around the fixed pulley.

3. The dumping mechanism for a heating furnace according to claim 1, characterized in that: Wing plate bins are fixedly installed on the inner walls on both sides of the mounting frame, and strip openings are symmetrically opened on the two wing plate bins on one side close to the heating furnace. Two sliding blocks are fixedly installed on the outer wall of one side of the heating furnace, and the two sliding blocks respectively penetrate the two strip openings and are slidably connected to the strip openings.

4. The dumping mechanism for a heating furnace according to claim 3, characterized in that: A transverse block is slidably installed in the wing plate bin, a plurality of clamping teeth are fixedly installed on one side of the transverse block, a plurality of spring rods are fixedly installed on an inner wall of one side of the wing plate bin, and one end of the spring rods is fixedly connected to the transverse block respectively.

5. The dumping mechanism for a heating furnace according to claim 3, characterized in that: A second fixed pulley is fixedly installed on the top of the two wing plate bins, a third fixed pulley is fixedly installed on one side outer wall of the two wing plate bins, and a safety rope is sleeved on the second fixed pulley and the third fixed pulley.

6. The tipping mechanism for a heating furnace according to claim 5, characterized in that: A collar is fixedly mounted on the top of the safety rope, and the collar is movably sleeved on the traction rope. A connecting plate is fixedly mounted on the bottom of the safety rope, and two sides of the connecting plate are respectively fixedly connected to two transverse blocks.

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