Water beam sliding block of walking beam furnace
By designing a water beam slider including a plane bearing block, a fixing part and a support part, and using multiple fixing methods of welding and pressing stop block and clamp, the problem of easy falling off of the slider in the prior art is solved, and the stability and safety of the heating furnace are improved.
Patent Information
- Application Number
- CN202421877406.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The water beam slider of the existing stepping heating furnace is prone to fall off in high temperature environments, causing the steel billet to get stuck on the water beam and unable to get out of steel, resulting in a furnace shutdown accident.
A water beam slider including a plane bearing block, a fixing part and a support part is designed, and is welded to the outer circumference of the water beam through the concave curved surface, and multiple fixing methods of pressing stops and clamps are used to ensure that the slider is stable and not easily fall off.
It effectively prevents the slider from falling off, improves the stability and safety of the heating furnace, avoids the occurrence of furnace shutdown accidents, and improves the uniformity and efficiency of billet heating.
Smart Images
Figure CN222912312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgical heating furnaces, and particularly relates to a walking beam heating furnace water beam slider. Background Art
[0002] In a walking beam heating furnace, sliders are sequentially fixed on a water beam along the axis direction of the water beam, and billets are evenly arranged on the sliders for heating. The axis direction of the billets is perpendicular to the axis direction of the water beam. In the prior art, the sliders are fixed on the outer peripheral surface of the water beam through four clamps, and the stability is poor. When producing round billets, the round billets roll in the furnace (or the acceleration and deceleration of the walking beam in the middle position are not adjusted well, and the impact on the heat-resistant sliders when supporting and releasing the billets), and the clamps are burned and deformed in a high-temperature environment, so that the sliders are relatively extruded and fall off under various impact actions. When more than two consecutive sliders of the water beam sliders fall off, the billets of the heating furnace will be stuck on the water beam and cannot be discharged, resulting in a furnace shutdown accident. Content of the Utility Model
[0003] The purpose of the utility model is to provide a walking beam heating furnace water beam slider to solve the problems that the slider is easy to fall off from the water beam in the above background art, resulting in furnace shutdown accidents and the like.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A walking beam heating furnace water beam slider, the slider includes a flat bearing block at the top, a fixing part at the bottom, and a supporting part connecting the flat bearing block and the fixing part. The lower end surface of the fixing part is an inner concave curved surface for welding with the outer periphery of the water beam. The two outer side surfaces of the fixing part are slope surfaces, and the distance from the edge of the inner concave curved surface to the supporting part and the water beam surface gradually increases along the slope surfaces. A plurality of pressing blocks for pressing the slope surfaces are welded on the outer surface of the water beam. A plurality of clamps are distributed on the slope surfaces, and the clamps are in one-to-one cooperation with the pressing blocks. When the slider is installed on the water beam, the pressing blocks are in contact with the clamps to limit the slider from moving along the axis direction of the water beam. Through this setting, the slider is fixed on the water beam by two methods of clamps and welding, making it durable and not easy to fall off.
[0006] Further, both ends of the flat bearing block along the axis direction of the water beam have bevel cut angles, and the cut surfaces of the bevel cut angles gradually approach the supporting part along the upper surface of the flat bearing block. Through this setting, it can prevent the round billets from rolling to a large extent in the furnace, and at the same time can relatively stabilize the distance between the billets to ensure the heating effect of the billets.
[0007] Further, the range of the bevel cut angle is 30° - 50°. The size of the bevel cut angles at both ends of the flat bearing block is selected according to the actual working conditions.
[0008] Further, the bevel cut angle is 45°.
[0009] Furthermore, the ratio between the width of the planar bearing block along the axial direction of the steel billet placed on the slider and the water beam radius is greater than 6:9 and less than 1, so as to increase the contact area between the steel billet and the slider and reduce the pressure on the contact surface between the steel billet and the slider.
[0010] Furthermore, the width of the planar bearing block along the axial direction of the steel billet placed on the slider is greater than 50 mm and smaller than the water beam radius, so as to increase the contact area between the steel billet and the slider and reduce the pressure on the contact surface between the steel billet and the slider.
[0011] Furthermore, the width of the support portion is smaller than the width of the plane bearing block, and the width of the support portion is smaller than the width of the orthographic projection of the concave curved surface, so that the longitudinal section of the slider is in the shape of a railroad track.
[0012] Furthermore, the width of the support portion is 50 mm.
[0013] Furthermore, there is an arc transition between the support portion and the plane bearing block.
[0014] The utility model has the following advantages over the prior art:
[0015] 1. The walking beam water beam slider of the utility model is welded with the outer peripheral surface of the water beam through the inner concave surface of the fixing part, and then the pressure block arranged on the water beam presses the slope surface of the fixing part, and the pressure block also abuts against the clamp on the slope surface to limit the movement of the slider along the axis of the water beam. The multiple fixing methods of welding and the pressure block, clamp and slope surface make the slider durable and not easy to fall off.
[0016] 2. The two ends of the water beam slider of the step-type heating furnace of the utility model are designed with 30°~50° chamfers respectively. The chamfers are limited to prevent the round billet from rolling to a large extent in the furnace, and prevent the billet from tilting or crowding in the furnace, which will cause production accidents such as billet tilting or overloading and inability to produce steel, and to ensure the spacing between the billets to a certain extent; the width of the upper end surface of the plane bearing block of the slider is increased, so that the contact surface with the billet is increased, which meets the production requirements of large square billets, reduces the pressure on the contact surface between the billet and the slider, and eliminates the indentation on the surface of the billet; the slider is designed in the form of a rail as a whole, and the width of the support part is smaller than that of the plane bearing block and the fixed part, so the support strength is large, and it saves materials, is economical and practical; the RS-A29 series special welding rods are used at the welding point between the slider and the water beam, which have strong heat resistance and are not easy to oxidize and burn. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a water beam slider of a walking-beam heating furnace in an embodiment of the utility model installed on a water beam;
[0018] Figure 2 for Figure 1Profile view;
[0019] In the figure: 1. Slide block; 2. Flat bearing block; 3. Support part; 4. Fixed part; 5. Concave curved surface; 6. Slope surface; 7. Pressing block; 8. Clamp; 9. Chamfer; 10. Water beam. Specific implementation mode
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0021] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
[0022] In addition, it should be understood that, for the convenience of description, the sizes of the various components shown in the accompanying drawings are not drawn in actual proportional relationship.
[0023] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further specifically discuss and describe it in the description of the subsequent drawings.
[0024] Embodiment:
[0025] When using the original slide block to carry the billet into the walking beam furnace, the following main problems often occur:
[0026] 1. The original slide block is fixed by four clamps, and the stability is poor. When producing round billets, the round billets roll in the furnace (or the walking beam is not debugged well during acceleration and deceleration in the middle position, and the impact on the heat-resistant slide block when supporting and releasing the billets), the clamps are burned and deformed in the high-temperature environment, and the slide blocks are relatively extruded and fall off under various impact actions.
[0027] 2. When more than two consecutive slide blocks fall off the water beam slide block, the billets in the heating furnace will be stuck on the water beam and cannot be discharged, resulting in a furnace shutdown accident.
[0028] 3. There is no measure to prevent the round steel from rolling on the original slider. The round steel is prone to rolling, skewing, piling up and squeezing in the furnace, the distance between billets is out of control, the heating efficiency is low, and the heating furnace may be overloaded.
[0029] 4. The width of the original slider is 50 mm. When heating large billets of 410*530 mm in the furnace, due to the small stress area, indentation is likely to occur, resulting in quality problems.
[0030] Based on the above defects, in order to eliminate the rolling of billets and round billets and improve the stability of heat-resistant sliders, the stress of the sliders is measured, the structure of the sliders is optimized, and the fixing method of the sliders is improved, so as to meet the production requirements of round billets and large square billets, and eliminate quality risks and furnace shutdown accidents.
[0031] As Figures 1 to 2 shown, the present utility model provides a walking beam heating furnace water beam slider. The slider 1 includes a planar bearing block 2 at the top, a fixing part 4 at the bottom, and a supporting part 3 connecting the planar bearing block 2 and the fixing part 4. The lower end surface of the fixing part 4 is an inner concave surface 5, and this inner concave surface 5 is matched with the outer peripheral surface of the water beam 10. During installation, the inner concave surface 5 is welded to the outer periphery of the water beam. The two outer side surfaces of the fixing part 4 are ramp surfaces 6, and the distance from the edge of the inner concave surface 5 to the surface of the supporting part 3 and the water beam 10 gradually increases along the ramp surface 6. A number of pressing blocks 7 are welded on the outer surface of the water beam 10. A number of clamps 8 are distributed on the ramp surface 6, and the clamps 8 are in one-to-one cooperation with the pressing blocks 7. When the slider 1 is installed on the water beam 10, the pressing blocks 7 press the ramp surface 6 and are in contact with the clamps 8 at the same time, so as to limit the slider 1 from moving along the axis direction of the water beam. The pressing block 7 is approximately wedge-shaped, its bottom is an arc surface, which is matched with the outer peripheral surface of the water beam 10 for welding with the outer periphery of the water beam. Its side close to the ramp surface 6 is an inclined surface for pressing the ramp surface, and its side close to the clamp 8 is a plane for cooperating with the clamp 8. Through this setting, the slider 1 is fixed on the water beam 10 by multiple fixing methods of welding and the cooperation of the pressing block 7 with the clamp 8 and the ramp surface 6, so that the slider 1 is durable and not easy to fall off. At the same time, a special RS-A29 series welding rod is used at the welding place between the slider and the water beam, which has strong heat resistance and is not easy to be oxidized and burned out.
[0032] Both ends of the planar bearing block 2 along the axis direction of the water beam 10 have bevel cut angles 9, and the cutting surface of this bevel cut angle 9 gradually approaches the supporting part 3 along the upper surface of the planar bearing block 2. The billet is placed on the planar bearing block 2. Once rolling occurs, the billet just falls into the bevel cut angle 9 between the two sliders 1. The setting of the bevel cut angle 9 can prevent the billet from rolling to a large extent in the furnace, avoid the billet from skewing, piling up, etc. due to rolling in the furnace, and at the same time can relatively stabilize the distance between the billets, ensure the heating effect of the billets, and prevent overload due to the disorder of the distance between the billets.
[0033] The range of the bevel angle 9 is 30° to 50°. Select the bevel angle size at both ends of the planar bearing block according to the actual working conditions. In this embodiment, the bevel angles at both ends of the planar bearing block are both 45°.
[0034] The ratio of the width of the planar bearing block 2 in the axial direction of the billet placed on the slider to the radius of the water beam is greater than 6:9 and less than 1, so as to increase the contact area between the billet and the slider and reduce the pressure on the contact surface between the billet and the slider. The original width of the slider is 50 mm, and the corresponding diameter of the water beam is 168 mm. When heating a large billet of 410*530 mm, due to the small force area, indentations are easily generated, resulting in quality problems. In this optimized design, the width of the planar bearing block, the radius of the water beam, the bearing capacity of the slider, and the size of the billet carried are combined, and factors such as cost investment are also considered. The width of the planar bearing block is increased to a large extent to increase its contact area with the billet and reduce the pressure on the contact surface between the billet and the slider, avoiding the generation of indentations during the heating process of the billet.
[0035] The width of the planar bearing block 2 in the axial direction of the billet placed on the slider is greater than 50 mm and less than the radius of the water beam 10. In this embodiment, the width of the planar bearing block 2 is 80 mm, which is correspondingly installed on a water beam with a diameter of 168 mm; when the diameter of the water beam is 219 mm, preferably the width of the planar bearing block 2 is increased to 100 mm.
[0036] The width of the support part 3 is less than the width of the planar bearing block 2, and the width of the support part 3 is less than the orthographic projection width of the concave curved surface 5, so that the longitudinal section of the slider 1 is in the shape of a railway track. In this embodiment, the width of the planar bearing block 2 is 80 mm, the width of the support part 3 is 50 mm, and there is an arc transition between the support part 3 and the planar bearing block 2. Through this setting, the longitudinal section of the slider is designed in the form of a railway track, with high support strength, material saving, and economic practicality.
[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A walking beam heating furnace water beam slider, characterized in that: The slider includes a planar bearing block located at the top, a fixing portion located at the bottom, and a supporting portion connecting the planar bearing block and the fixing portion. The lower end surface of the fixing portion is a concave curved surface for welding with the outer periphery of the water beam. The two outer side surfaces of the fixing portion are sloped surfaces. The distance from the edge of the concave curved surface to the supporting portion and the surface of the water beam gradually increases. A plurality of pressure blocks for pressing the sloped surface are welded to the outer surface of the water beam. A plurality of clamps are distributed on the sloped surface, and the clamps cooperate with the pressure blocks one by one. When the slider is installed on the water beam, the pressure block abuts against the clamp to limit the sliding movement of the slider along the axis of the water beam.
2. The walking beam heating furnace water beam slider according to claim 1, characterized in that: The two ends of the plane bearing block along the water beam axis direction have chamfered angles for preventing the steel billet from rolling in the furnace, and the section of the chamfered angle gradually approaches the support portion along the upper surface of the plane bearing block.
3. The walking beam heating furnace water beam slider according to claim 2, characterized in that: The bevel angle ranges from 30° to 50°.
4. The walking beam heating furnace water beam slider according to claim 2, characterized in that: The bevel angle is 45°.
5. The walking beam heating furnace water beam slider according to claim 1, characterized in that: The ratio between the width of the planar bearing block along the axial direction of the steel billet placed on the slider and the water beam radius is greater than 6:9 and less than 1, so as to increase the contact area between the steel billet and the slider and reduce the pressure on the contact surface between the steel billet and the slider.
6. The walking beam heating furnace water beam slider according to claim 1, characterized in that: The width of the planar bearing block along the axial direction of the steel billet placed on the slider is greater than 50 mm and smaller than the water beam radius, so as to increase the contact area between the steel billet and the slider and reduce the pressure on the contact surface between the steel billet and the slider.
7. The walking beam heating furnace water beam slider according to claim 1, characterized in that: The width of the support portion is smaller than the width of the plane bearing block, and the width of the support portion is smaller than the width of the positive projection of the concave curved surface, so that the longitudinal section of the slider is in the shape of a rail.
8. The walking beam heating furnace water beam slider according to claim 7, characterized in that: The width of the support portion is 50 mm.
9. The walking beam heating furnace water beam slider according to claim 7, characterized in that: There is an arc transition between the support portion and the plane bearing block.