A new type of furnace mouth opening machine

By introducing filtration and disassembly components into the blast furnace taphole machine, the problem of the hydraulic system being susceptible to impurities was solved, achieving stable and efficient operation of the equipment, reducing maintenance costs, and extending the equipment's lifespan.

CN224378087UActive Publication Date: 2026-06-19HEBEI XINDA IRON & STEEL GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI XINDA IRON & STEEL GRP CO LTD
Filing Date
2025-03-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The hydraulic system of a traditional blast furnace taphole machine is susceptible to dust and iron filings, leading to wear, blockage, and inconvenient maintenance, which affects the continuity and stability of production.

Method used

A novel blast furnace taphole opening machine was designed, employing a filter assembly and a disassembly assembly. Impurities are filtered through the filter barrel, simplifying the disassembly and installation process and improving the stability and working efficiency of the hydraulic system.

Benefits of technology

It improved equipment performance, reduced maintenance costs, extended equipment lifespan, reduced equipment downtime, and ensured the continuity and stability of blast furnace ironmaking production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to blast furnace metallurgical equipment technical field discloses a novel blast furnace mouth opening machine, including moving wheel, the movable wheel inner wall rotation is connected with support table no.
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Description

Technical Field

[0001] This utility model relates to the field of blast furnace metallurgical equipment technology, and in particular to a novel blast furnace taphole machine. Background Technology

[0002] In the blast furnace ironmaking process, the blast furnace taphole opener is a crucial piece of equipment. Its function is to open the taphole when tapping iron from the blast furnace, allowing molten iron to flow out smoothly. With the continuous development of blast furnace ironmaking technology, the performance requirements for the taphole opener are also increasing. An efficient, stable, and easy-to-maintain taphole opener is essential for ensuring continuous blast furnace production and improving ironmaking efficiency. Therefore, developing a new type of blast furnace taphole opener has significant practical implications.

[0003] In traditional blast furnace taphole machines, the hydraulic system is a crucial power source during operation. This system typically relies on oil pumps to deliver hydraulic oil to various actuators, enabling the taphole machine's actions such as drill bit advancement and rotation. Mechanically, the machine's movement is generally supported and guided by simple supports and rails, with a hydraulic motor driving the drill bit for rotation. However, these traditional structures have gradually revealed some problems over long-term use.

[0004] In the harsh environment of blast furnace ironmaking, the hydraulic system of traditional taphole openers faces severe challenges. The area around the blast furnace contains a large amount of dust, iron filings, and other impurities, which easily mix into the hydraulic oil. Once these impurities enter the hydraulic system, they circulate with the hydraulic oil, causing wear and tear on the hydraulic components. For example, the internal parts of the oil pump experience increased clearance due to the grinding effect of impurities, leading to a decrease in the pump's volumetric efficiency and affecting the pressure stability of the entire system. Simultaneously, impurities gradually clog the tiny channels of hydraulic pipes and valves, obstructing the flow of hydraulic oil and reducing work efficiency. When the hydraulic system malfunctions, the filtering devices of traditional taphole openers are often difficult to disassemble and maintain quickly, resulting in prolonged equipment downtime, affecting the continuity and stability of blast furnace ironmaking production, and increasing production costs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a new type of blast furnace taphole machine, which aims to improve the problems caused by impurities easily mixed into the hydraulic oil and the inconvenience of maintaining the filter barrel, which can cause impurities to wear hydraulic components, clog pipelines, and affect system pressure and working efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel blast furnace taphole machine, comprising a movable wheel, a support platform rotatably connected to the inner wall of the movable wheel, a track slidably connected to the outer wall of the movable wheel, a support column fixedly connected to the upper surface of the track, an oil inlet pipe and an oil delivery pipe provided on the upper surface of the support column, a filter assembly provided on the inner wall of the support column, a sliding rod fixedly connected to the outer wall of the support column, a disassembly assembly provided below the sliding rod, and a moving assembly provided on the outer wall of the sliding rod;

[0007] The filter assembly includes an oil inlet tank, the outer wall of which is fixedly connected to the inner wall of a support column. A support ring is fixedly connected to the inner wall of the oil inlet tank. A connecting column is fixedly connected to the upper surface of the support ring. A fixed column is slidably connected to the outer wall of the connecting column. A spring is fixedly connected to the inner wall of the connecting column. A movable column is fixedly connected to the outer wall of the fixed column. A filter tank is fixedly connected to one end of the movable column.

[0008] Furthermore, the moving component includes a second support platform, which is slidably connected to the outer wall of the sliding rod. A hydraulic rod is fixedly connected to the upper surface of the sliding rod, and the output end of the hydraulic rod is fixedly connected to the outer wall of the second support platform. A support frame is fixedly connected to the lower surface of the sliding rod, and a hydraulic motor is fixedly connected to the inner wall of the support frame. A second connecting column is fixedly connected to the output end of the hydraulic motor.

[0009] Furthermore, the disassembly assembly includes a fixing rod disposed below the sliding rod, a second spring fixedly connected to the inner wall of the second connecting column, a push column fixedly connected to one end of the second spring, a second fixing column fixedly connected to the outer wall of the push column, a fixed platform slidably connected to the outer wall of the push column, and a drill bit fixedly connected to the outer wall of the fixed platform.

[0010] Furthermore, the outer wall of the pushing column is slidably connected to the inner wall of the connecting column two, and the pushing column is used to push the fixed platform.

[0011] Furthermore, the outer wall of the fixing platform is threadedly connected to the inner wall of the connecting column two, and the fixing platform is used for secondary fixing of the drill bit.

[0012] Furthermore, the outer wall of the fixing rod is slidably connected to the inner wall of the fixing platform, and the fixing rod is used to fix the fixing platform.

[0013] Furthermore, the outer wall of the drill bit is rotatably connected to the inner wall of the support frame, and the drill bit is used to open the blast furnace.

[0014] Furthermore, one end of the oil delivery pipe is fixedly connected to the inner wall of the hydraulic rod, and the oil delivery pipe is used to deliver hydraulic oil into the hydraulic rod.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, during operation, oil is supplied through the oil inlet pipe and filtered by the filter barrel. During disassembly, the filter barrel is rotated to disengage the fixing column from the connecting column, and the spring rebounds to push the filter barrel out. During installation, the filter barrel is moved to allow the fixing column to enter the sliding groove of the connecting column, and then rotated to complete the installation. This solves the problems of hydraulic oil easily mixing with impurities and the inconvenience of filter barrel maintenance. Impurities can wear down hydraulic components, clog pipelines, and affect system pressure and working efficiency. It achieves the effects of improving equipment performance, reducing maintenance costs, extending equipment service life, reducing equipment downtime, and ensuring the continuity and stability of blast furnace ironmaking production.

[0017] 2. In this utility model, when disassembling the drill bit, rotating the drill bit causes the fixed platform to detach from the fixed rod and the second connecting column. The second spring rebounds and pushes the fixed platform to complete the disassembly. During installation, rotating the drill bit causes the fixed platform to squeeze the second spring, connect with the fixed rod, and then rotate to complete the secondary fixation. This achieves the effect of improving the iron tapping efficiency of the blast furnace and reducing equipment downtime. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of a novel blast furnace taphole machine proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the sliding rod part of a novel blast furnace taphole machine proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the filter barrel section of a novel blast furnace taphole machine proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of a portion of the spring structure of a novel blast furnace taphole opening machine proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the drill bit structure of a novel blast furnace taphole machine proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the two-part spring structure of a novel blast furnace taphole opening machine proposed in this utility model.

[0024] Legend:

[0025] 1. Moving wheel; 2. Support platform one; 3. Track; 4. Support column; 5. Sliding rod; 6. Drill bit; 7. Hydraulic motor; 8. Support frame; 9. Hydraulic rod; 10. Support platform two; 11. Oil inlet tank; 12. Oil inlet pipe; 13. Oil delivery pipe; 14. Support ring; 15. Filter tank; 16. Connecting column one; 17. Spring one; 18. Moving column; 19. Fixed column one; 20. Connecting column two; 21. Push column; 22. Fixed column two; 23. Spring two; 24. Fixed rod; 25. Fixed platform. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a novel blast furnace taphole machine, comprising a movable wheel 1, a support platform 2 rotatably connected to the inner wall of the movable wheel 1, a track 3 slidably connected to the outer wall of the movable wheel 1, a support column 4 fixedly connected to the upper surface of the track 3, an oil inlet pipe 12 provided on the upper surface of the support column 4, an oil delivery pipe 13 provided on the upper surface of the support column 4, a filter assembly provided on the inner wall of the support column 4, a sliding rod 5 fixedly connected to the outer wall of the support column 4, a disassembly assembly provided below the sliding rod 5, and a moving assembly provided on the outer wall of the sliding rod 5.

[0028] The filter assembly includes an oil inlet tank 11, the outer wall of which is fixedly connected to the inner wall of a support column 4. A support ring 14 is fixedly connected to the inner wall of the oil inlet tank 11. A connecting column 16 is fixedly connected to the upper surface of the support ring 14. A fixed column 19 is slidably connected to the outer wall of the connecting column 16. A spring 17 is fixedly connected to the inner wall of the connecting column 16. A movable column 18 is fixedly connected to the outer wall of the fixed column 19. A filter tank 15 is fixedly connected to one end of the movable column 18.

[0029] Specifically, when installing the filter barrel 15, first lift the filter barrel 15 so that the moving column 18 is aligned with the direction of the connecting column 16. Push the filter barrel 15 to move the moving column 18 closer to the connecting column 16. During the movement of the moving column 18, the fixed column 19 connected to it gradually inserts into the groove opened in the connecting column 16. As the insertion depth increases, the moving column 18 compresses the spring 17 to make it contract. When the fixed column 19 reaches the preset appropriate position in the groove, rotate the filter barrel 15 to drive the moving column 18 and the fixed column 19 to rotate synchronously, so that the fixing structure of the fixed column 19 and the connecting column 16 is locked again, and the installation is completed.

[0030] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The moving component includes a second support platform 10, which is slidably connected to the outer wall of the sliding rod 5. A hydraulic rod 9 is fixedly connected to the upper surface of the sliding rod 5, and the output end of the hydraulic rod 9 is fixedly connected to the outer wall of the second support platform 10. A support frame 8 is fixedly connected to the lower surface of the sliding rod 5, and a hydraulic motor 7 is fixedly connected to the inner wall of the support frame 8. A connecting column 20 is fixedly connected to the output end of the hydraulic motor 7. The disassembly component includes a fixing rod 24, which is located below the sliding rod 5. A second spring 23 is fixedly connected to the inner wall of the connecting column 20, and a pushing column 21 is fixedly connected to one end of the spring 23. A second fixing column 22 is fixedly connected to the outer wall of the pushing column 21. A fixed platform 25 is slidably connected to the outer wall of the push column 21. A drill bit 6 is fixedly connected to the outer wall of the fixed platform 25. The outer wall of the push column 21 is slidably connected to the inner wall of the connecting column 20. The push column 21 is used to push the fixed platform 25. The outer wall of the fixed platform 25 is threadedly connected to the inner wall of the connecting column 20. The fixed platform 25 is used to fix the drill bit 6 for a secondary purpose. The outer wall of the fixing rod 24 is slidably connected to the inner wall of the fixed platform 25. The fixing rod 24 is used to fix the fixed platform 25. The outer wall of the drill bit 6 is rotatably connected to the inner wall of the support frame 8. The drill bit 6 is used to open the blast furnace. One end of the oil supply pipe 13 is fixedly connected to the inner wall of the hydraulic rod 9. The oil supply pipe 13 is used to deliver hydraulic oil into the hydraulic rod 9.

[0031] Specifically, when disassembling drill bit 6, rotating drill bit 6 causes fixed platform 25 to rotate, causing it to disengage from fixed rod 24 and connecting column 20. Spring 23 rebounds and pushes push column 21, causing fixed platform 25 to move away from connecting column 20. Fixed column 22 slides and is limited within connecting column 20. When installing drill bit 6, rotating drill bit 6 causes fixed platform 25 to rotate within connecting column 20 and squeeze push column 21 to compress spring 23. Fixed rod 24 connects with fixed platform 25 to achieve initial fixation. After fixed platform 25 rotates to its position, it completes secondary fixation with connecting column 20.

[0032] Working principle: When using the new type of blast furnace taphole machine, the moving wheel 1 slides along the track 3 to ensure equipment stability and prevent molten iron from splashing and damaging the taphole machine. The oil inlet pipe 12 delivers oil to the oil inlet tank 11. The filter tank 15 is used to filter the hydraulic oil to prevent blockage. When disassembling the filter tank 15, rotate the filter tank 15 to disengage the fixed column 19 from the connecting column 16, and the spring 17 rebounds to push out the moving column 18. During installation, move the filter tank 15 to let the fixed column 19 enter the sliding groove of the connecting column 16, and then rotate to complete the installation. The filtered hydraulic oil enters the hydraulic rod 9 through the oil delivery pipe 13, driving the moving component. The hydraulic rod 9 pushes the sliding rod 5, driving the hydraulic motor 7. The hydraulic motor 7 drives the drill bit 6 to rotate and open the iron mouth via the connecting column 20. In addition, when disassembling the drill bit 6, rotating the drill bit 6 drives the fixed platform 25 to disengage from the fixed rod 24 and the connecting column 20. The spring 23 rebounds and pushes the push column 21, moving the fixed platform 25 away from the connecting column 20. The fixed column 22 is then in a limited position, completing the disassembly. When installing the drill bit 6, rotating the drill bit 6 causes the fixed platform 25 to rotate within the connecting column 20 and press the push column 21 to compress the spring 23. The fixed rod 24 connects with the fixed platform 25 to achieve the first fixation. After the fixed platform 25 rotates to its position, it completes the second fixation with the connecting column 20, thus completing the installation.

[0033] 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 novel blast furnace taphole machine, comprising moving wheels (1), characterized in that: The inner wall of the movable wheel (1) is rotatably connected to a support platform (2), the outer wall of the movable wheel (1) is slidably connected to a track (3), the upper surface of the track (3) is fixedly connected to a support column (4), the upper surface of the support column (4) is provided with an oil inlet pipe (12), the upper surface of the support column (4) is provided with an oil delivery pipe (13), the inner wall of the support column (4) is provided with a filter assembly, the outer wall of the support column (4) is fixedly connected to a sliding rod (5), the lower part of the sliding rod (5) is provided with a disassembly assembly, and the outer wall of the sliding rod (5) is provided with a moving assembly; The filter assembly includes an oil inlet tank (11), the outer wall of which is fixedly connected to the inner wall of a support column (4), a support ring (14) is fixedly connected to the inner wall of the oil inlet tank (11), a connecting column (16) is fixedly connected to the upper surface of the support ring (14), a fixed column (19) is slidably connected to the outer wall of the connecting column (16), a spring (17) is fixedly connected to the inner wall of the connecting column (16), a movable column (18) is fixedly connected to the outer wall of the fixed column (19), and a filter tank (15) is fixedly connected to one end of the movable column (18).

2. The novel blast furnace taphole machine according to claim 1, characterized in that: The moving component includes a second support platform (10), which is slidably connected to the outer wall of a sliding rod (5). A hydraulic rod (9) is fixedly connected to the upper surface of the sliding rod (5), and the output end of the hydraulic rod (9) is fixedly connected to the outer wall of the second support platform (10). A support frame (8) is fixedly connected to the lower surface of the sliding rod (5), and a hydraulic motor (7) is fixedly connected to the inner wall of the support frame (8). A connecting column (20) is fixedly connected to the output end of the hydraulic motor (7).

3. A novel blast furnace taphole machine according to claim 2, characterized in that: The disassembly assembly includes a fixing rod (24), which is located below the sliding rod (5). A spring (23) is fixedly connected to the inner wall of the connecting column (20). A pushing column (21) is fixedly connected to one end of the spring (23). A fixing column (22) is fixedly connected to the outer wall of the pushing column (21). A fixing platform (25) is slidably connected to the outer wall of the pushing column (21). A drill bit (6) is fixedly connected to the outer wall of the fixing platform (25).

4. A novel blast furnace taphole machine according to claim 3, characterized in that: The outer wall of the push column (21) is slidably connected to the inner wall of the connecting column (20), and the push column (21) is used to push the fixed platform (25).

5. A novel blast furnace taphole machine according to claim 3, characterized in that: The outer wall of the fixed platform (25) is threaded to the inner wall of the connecting column two (20), and the fixed platform (25) is used for secondary fixing of the drill bit (6).

6. A novel blast furnace taphole machine according to claim 3, characterized in that: The outer wall of the fixing rod (24) is slidably connected to the inner wall of the fixing platform (25), and the fixing rod (24) is used to fix the fixing platform (25).

7. A novel blast furnace taphole machine according to claim 3, characterized in that: The outer wall of the drill bit (6) is rotatably connected to the inner wall of the support frame (8), and the drill bit (6) is used to open the blast furnace.

8. A novel blast furnace taphole machine according to claim 1, characterized in that: One end of the oil delivery pipe (13) is fixedly connected to the inner wall of the hydraulic rod (9), and the oil delivery pipe (13) is used to deliver hydraulic oil into the hydraulic rod (9).