Auxiliary discharging device for high chromium steel ball smelting

Abstract

This utility model discloses an auxiliary discharge device for high-chromium steel ball smelting, relating to the field of high-chromium steel ball smelting. It addresses the problem in existing technologies where the material outflow angle is fixed, and the discharge volume is uneven before and after discharge, affecting the quality of the cast balls. A fixed longitudinal plate is welded to one side of the upper end of the support frame. Fixing members are welded to the front and rear ends of the fixed longitudinal plate. A lower adjusting plate is rotatably connected between the two fixing members via a central rotating shaft. The lower adjusting plate is inclined, and a second C-shaped seat is welded to the front and rear ends of the lower adjusting plate on the side away from the fixed longitudinal plate. A sliding plate is slidably connected within the support frame. A first C-shaped seat is welded to the front and rear ends of the upper end of the sliding plate. An adjusting rotating rod is rotatably connected between the first and second C-shaped seats at each end via a shaft.

Description

Technical Field

[0001] This utility model relates to the field of high-chromium steel ball smelting, specifically an auxiliary discharge device for high-chromium steel ball smelting. Background Technology

[0002] High-chromium steel balls, as an important wear-resistant material, are widely used in ball mills in many industries such as mining, cement, power, and chemicals, undertaking the critical task of material grinding. With the continuous advancement of industrial technology, the quality and performance requirements for high-chromium steel balls are also increasing. High-chromium steel balls need to possess characteristics such as high hardness, high wear resistance, and good toughness to adapt to complex and changing working conditions, extend their service life, and reduce production costs for enterprises. To meet these requirements, the manufacturing process of high-chromium steel balls is constantly being optimized, with smelting being a crucial step that directly affects the final quality of the steel balls.

[0003] Discharging is the final and crucial step in the high-chromium steel ball smelting process, and its operational quality directly affects the quality of the steel balls and production efficiency. During discharging, the molten high-temperature steel needs to be accurately and stably drawn from the electric furnace and shaped into steel ball billets according to a predetermined method. For example, the Chinese authorized patent CN 215638761 U (An auxiliary discharging device for a medium-frequency melting furnace for spheroidizing wire production) includes a scraper that runs along the length of the discharge nozzle to scrape the inner wall of the nozzle, and the scraper is connected to a control mechanism to control its operation. After the material in the medium-frequency melting furnace has been emptied, the operator controls the scraper through the control mechanism to scrape the inner wall of the discharge nozzle, thereby scraping away some of the material adhering to the nozzle. The material solidifies at the nozzle, allowing it to pass through the nozzle more smoothly in subsequent processes.

[0004] Although the aforementioned existing technology has the function of guiding material outflow, the material outflow angle is fixed. When the material is first discharged, the material quantity is large and the discharge can proceed normally. However, in the later stages of discharge, the material quantity decreases and the discharge volume becomes small, resulting in uneven discharge volume and affecting the casting quality of the balls. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary discharge device for high-chromium steel ball smelting, so as to solve the problems mentioned in the background art, such as the fixed material outflow angle and uneven discharge volume before and after discharge, which affect the quality of ball casting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary discharge device for high-chromium steel ball smelting, comprising a support frame, a fixed longitudinal plate welded and fixed to one side of the upper end of the support frame, and fixing members welded and fixed to both the front and rear ends of the fixed longitudinal plate, a lower adjusting plate rotatably connected between the two fixing members via a central rotating shaft, the lower adjusting plate being inclined, and a second C-shaped seat welded and fixed to both the front and rear ends of the lower end of the lower adjusting plate away from the fixed longitudinal plate; a sliding plate is slidably connected within the support frame, and a first C-shaped seat is welded and fixed to both the front and rear ends of the upper end of the sliding plate, and an adjusting rotating rod is rotatably connected between the first C-shaped seat and the second C-shaped seat at each end via a shaft.

[0007] Preferably, a fixing frame is welded and fixed to the lower end of the outer periphery of the support frame. A drive motor is installed on the side of the fixing frame near the fixing longitudinal plate. A rotating shaft is installed inside the fixing frame along the output shaft end of the drive motor. The side of the rotating shaft away from the drive motor is provided with a threaded part, and the threaded part is connected to the sliding plate by a thread.

[0008] Preferably, a transverse limiting rod is welded and fixed to the front and rear ends of the fixed frame along the rotation axis, and a limiting groove is opened on the inner end face of the fixed frame, so that the sliding plate can slide along the transverse limiting rod and the limiting groove.

[0009] Preferably, the front and rear ends of the upper end of the support frame away from the fixed longitudinal plate are integrally connected with arc-shaped limiting rods. The arc-shaped limiting rods are concentric with the central rotating shaft. The lower adjusting plate rotates along the arc-shaped limiting rods, and a limiting block is fixed at the upper end of the arc-shaped limiting rods.

[0010] Preferably, an upper auxiliary discharge component is welded and fixed to the upper end of the lower adjusting plate. The interior of the upper auxiliary discharge component forms a feeding channel, a flow channel, a converging channel and a discharge channel from left to right, and the widths of the feeding channel, the flow channel, the converging channel and the discharge channel decrease step by step.

[0011] Preferably, the inner wall of the upper auxiliary discharge component is configured as a vacuum insulation cavity.

[0012] Preferably, a fixing hook is integrally connected to the side of the fixing member away from the central pivot, and the fixing hook extends outward.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) In this utility model, by designing the connection relationship of each component, the tilt angle of the lower adjustment plate can be flexibly adjusted. The discharge speed and direction can be controlled according to the discharge stage. The tilt angle is small in the early stage of discharge and large in the later stage of discharge, thereby improving the uniformity of discharge and greatly improving the casting quality.

[0014] (2) In this utility model, the design of the vacuum insulation cavity reduces the temperature loss of the material during the discharge process, ensures the physical properties of the material, and is beneficial to subsequent casting and molding. In addition, it reduces the heat exchange between the upper and lower sections, which is beneficial to the normal operation of the lower drive structure.

[0015] (3) In this utility model, the setting of the fixing hook makes the relative position of the device and the smelting furnace fixed, and the operation is more stable and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an auxiliary discharge device for high-chromium steel ball smelting according to the present invention from a main perspective. Figure 2 This is a schematic diagram of the overall structure of an auxiliary discharge device for high-chromium steel ball smelting according to the present invention, viewed from an overhead angle. Figure 3 This is a front view of an auxiliary discharge device for high-chromium steel ball smelting according to the present invention; Figure 4 This is a side view of an auxiliary discharge device for high-chromium steel ball smelting according to the present invention; Figure 5 This is a cross-sectional view at section AA of an auxiliary discharge device for high-chromium steel ball smelting according to the present invention.

[0017] In the diagram: 1. Support frame; 2. Fixed longitudinal plate; 3. Fixing component; 4. Fixing hook; 5. Lower adjusting plate; 6. Arc-shaped limiting rod; 7. Limiting block; 8. Fixing frame; 9. Drive motor; 10. Rotating shaft; 11. Threaded part; 12. Lateral limiting rod; 13. Limiting slide groove; 14. Sliding plate; 15. First C-shaped seat; 16. Second C-shaped seat; 17. Adjusting rotating rod; 18. Upper auxiliary discharge component; 19. Feeding channel; 20. Flow channel; 21. Converging channel; 22. Discharge channel; 23. Vacuum insulation chamber. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1-5This utility model provides an embodiment of an auxiliary discharge device for high-chromium steel ball smelting, mainly consisting of a support frame 1 forming the main support structure of the device. A fixed longitudinal plate 2 is welded and fixed to one side of the upper end of the support frame 1. Fixing members 3 are welded and fixed to both the front and rear ends of the fixed longitudinal plate 2, serving to connect and fix other components. A lower adjusting plate 5 is rotatably connected between the two fixing members 3 via a central rotating shaft. The lower adjusting plate 5 is inclined, allowing the material to flow smoothly. A fixing hook 4 is integrally connected to the side of the fixing member 3 away from the central rotating shaft, extending outward. The fixing hook 4 hooks onto the bracket near the discharge nozzle of the smelting furnace, thus fixing the relative position of this auxiliary discharge device with the smelting furnace.

[0020] The lower adjusting plate 5 has a second C-shaped seat 16 welded and fixed at both the front and rear ends on the side away from the fixed longitudinal plate 2. The second C-shaped seat 16 provides a position for connecting the adjusting rotating rod 17.

[0021] A sliding plate 14 is slidably connected within the support frame 1, and the sliding plate 14 is a key component for adjusting the tilt angle of the lower adjustment plate 5. First C-shaped seats 15 are welded and fixed to the front and rear ends of the upper end of the sliding plate 14. An adjusting rotating rod 17 is rotatably connected between each end of the first C-shaped seat 15 and the second C-shaped seat 16 via a shaft. A fixed frame 8 is welded and fixed to the lower end of the outer perimeter of the support frame 1, providing space for the installation of the drive motor 9 and the rotating shaft 10. The drive motor 9 is installed on the outer side of the fixed frame 8 near the fixed longitudinal plate 2, and the drive motor 9 is the power source for the entire adjustment system. A rotating shaft 10 is installed inside the fixed frame 8 along the output shaft end of the drive motor 9, and the rotating shaft 10 transmits the power of the drive motor 9. During adjustment, the drive motor 9 drives the rotating shaft 10 to rotate. The outer side of the rotating shaft 10 away from the drive motor 9 is provided with a threaded part 11, which is threadedly connected to the sliding plate 14. When the rotating shaft 10 rotates, the threaded connection between the threaded part 11 and the sliding plate 14 drives the sliding plate 14 to move away from the drive motor 9. The first C-shaped seat 15 moves synchronously. Through the axial connection between the first C-shaped seat 15, the second C-shaped seat 16 and the adjusting rotating rod 17, one end of the lower adjusting plate 5 is lifted upward, thereby realizing the adjustment of the tilt angle of the lower adjusting plate 5.

[0022] A transverse limiting rod 12 is welded and fixed inside the fixed frame 8 along the front and rear ends of the rotation axis 10. A limiting groove 13 is formed on the inner end face of the fixed frame 8. The sliding plate 14 slides along the transverse limiting rod 12 and the limiting groove 13. The setting of the transverse limiting rod 12 and the limiting groove 13 ensures the stability of the sliding plate 14 during movement, avoids the deviation and shaking of the sliding plate 14, and improves the safety and reliability of the device.

[0023] Both the front and rear ends of the support frame 1, away from the fixed longitudinal plate 2, are integrally connected to arc-shaped limiting rods 6. The arc-shaped limiting rods 6 are concentric with the central rotating shaft, and the lower adjusting plate 5 is limited to rotate along the arc-shaped limiting rods 6. The design of the arc-shaped limiting rods 6 makes the rotation of the lower adjusting plate 5 smoother and more stable, and can control the rotation trajectory of the lower adjusting plate 5. A limiting block 7 is fixed to the upper end of the arc-shaped limiting rod 6, which restricts the rotation range of the lower adjusting plate 5 and prevents excessive rotation of the lower adjusting plate 5 from damaging the device.

[0024] An upper auxiliary discharge component 18 is welded and fixed to the upper end of the lower adjusting plate 5. The upper auxiliary discharge component 18 serves as a channel for material flow. The interior of the upper auxiliary discharge component 18, from left to right, forms a feeding channel 19, a flow channel 20, a converging channel 21, and a discharge channel 22. The widths of the feeding channel 19, flow channel 20, converging channel 21, and discharge channel 22 decrease progressively. This progressively decreasing channel width allows the material to flow more concentratedly towards the casting mold position, improving casting accuracy. The inner wall of the upper auxiliary discharge component 18 is configured with a vacuum insulation chamber 23, which effectively reduces temperature loss of the material during the discharge process.

[0025] Working principle: The auxiliary discharge device is fixed in position relative to the smelting furnace by hooking the support near the discharge nozzle of the smelting furnace with the fixed hook 4.

[0026] Before the smelting furnace discharges material, the tilt angle of the lower adjusting plate 5 is adjusted to the minimum. The drive motor 9 drives the rotating shaft 10 to rotate, and through the threaded connection between the threaded part 11 and the sliding plate 14, the sliding plate 14 moves away from the drive motor 9. The first C-shaped seat 15 moves synchronously, and through the axial connection between the first C-shaped seat 15, the second C-shaped seat 16, and the adjusting rotating rod 17, one end of the lower adjusting plate 5 is lifted upward. The smelting furnace discharges material, which flows through the feeding channel 19, the flow channel 20, the convergence channel 21, and the discharge channel 22 to the casting mold position.

[0027] During the discharge process, the drive motor 9 drives the rotating shaft 10 to rotate in the opposite direction, pulling one end of the lower adjusting plate 5 to move slowly downward, gradually adjusting the tilt angle of the lower adjusting plate 5; the tilt angle of the lower adjusting plate 5 is at its maximum in the later stage of discharge.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An auxiliary discharge device for high-chromium steel ball smelting, comprising a support frame (1), characterized in that: A fixed longitudinal plate (2) is welded and fixed on one side of the upper end of the support frame (1). Fixing parts (3) are welded and fixed at both the front and rear ends of the fixed longitudinal plate (2). A lower adjusting plate (5) is rotatably connected between the two fixing parts (3) through a central rotating shaft. The lower adjusting plate (5) is inclined. A second C-shaped seat (16) is welded and fixed at both the front and rear ends of the lower adjusting plate (5) away from the fixed longitudinal plate (2). A sliding plate (14) is slidably connected inside the support frame (1). A first C-shaped seat (15) is welded and fixed at both the front and rear ends of the upper end of the sliding plate (14). An adjusting rotating rod (17) is rotatably connected between the first C-shaped seat (15) and the second C-shaped seat (16) at each end through a shaft.

2. The auxiliary discharge device for high-chromium steel ball smelting according to claim 1, characterized in that: A fixed frame (8) is welded and fixed to the lower end of the outer periphery of the support frame (1). A drive motor (9) is installed on the side of the fixed frame (8) near the fixed longitudinal plate (2). A rotating shaft (10) is installed inside the fixed frame (8) along the output shaft end of the drive motor (9). The side of the rotating shaft (10) away from the drive motor (9) is provided with a threaded part (11). The threaded part (11) is connected to the sliding plate (14) by a thread.

3. An auxiliary discharge device for high-chromium steel ball smelting according to claim 2, characterized in that: A transverse limiting rod (12) is welded and fixed to the front and rear ends of the fixed frame (8) along the rotation axis (10). A limiting groove (13) is opened on the inner end face of the fixed frame (8). The sliding plate (14) slides along the transverse limiting rod (12) and the limiting groove (13).

4. An auxiliary discharge device for high-chromium steel ball smelting according to claim 1, characterized in that: The front and rear ends of the support frame (1) on the side away from the fixed longitudinal plate (2) are integrally connected with arc-shaped limiting rods (6). The arc-shaped limiting rods (6) and the central rotating shaft are co-centered. The lower adjusting plate (5) rotates along the arc-shaped limiting rods (6) and the upper end of the arc-shaped limiting rods (6) is fixed with a limiting block (7).

5. An auxiliary discharge device for high-chromium steel ball smelting according to claim 1, characterized in that: The upper end of the lower adjusting plate (5) is welded and fixed with an upper auxiliary discharge component (18). The upper auxiliary discharge component (18) forms a feeding channel (19), a flow channel (20), a convergence channel (21) and a discharge channel (22) from left to right inside. The widths of the feeding channel (19), the flow channel (20), the convergence channel (21) and the discharge channel (22) decrease step by step.

6. An auxiliary discharge device for high-chromium steel ball smelting according to claim 5, characterized in that: The inner wall of the upper auxiliary discharge component (18) is configured as a vacuum insulation cavity (23).

7. An auxiliary discharge device for high-chromium steel ball smelting according to claim 1, characterized in that: The fixing member (3) has a fixing hook (4) integrally connected to the side away from the central pivot, and the fixing hook (4) extends outward.

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