Horizontal adjusting pull rod for stokehole clay gun
By adopting a design with opposite internal thread directions at both ends of the adjusting sleeve and a disc spring box structure on the mud gun horizontal adjusting rod, the problems of traditional rod jamming and low maintenance efficiency are solved, achieving convenient adjustment and safe and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HBIS LAOTING STEEL CO LTD
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional mud gun horizontal adjustment rods are prone to jamming in high temperature and high humidity environments, making adjustment inconvenient, posing safety hazards, and resulting in low maintenance efficiency.
A horizontal adjustment rod for the mud gun in front of the furnace was designed. It adopts a structure in which the internal threads at both ends of the adjustment sleeve turn in opposite directions. Combined with the design of disc spring box and high-strength nut, it is convenient to adjust and prevents jamming, reducing labor intensity and safety risks.
It extends the service life of spare parts, reduces spare parts costs, improves adjustment efficiency and maintenance convenience, and reduces workload.
Smart Images
Figure CN224133098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a horizontal adjustment rod for a mud gun in front of a furnace, belonging to the technical field of metallurgical equipment in the metallurgical industry. Background Technology
[0002] The mud gun is a crucial piece of equipment in front of the blast furnace, its function being to plug the taphole with mud after a batch of iron has been tapped. The horizontal adjusting rod is used to adjust the horizontal position of the mud gun muzzle, ensuring accurate plugging and preventing mud from overflowing. The adjustment of the mud gun horizontal adjusting rod is achieved by rotating the threads at both ends in opposite directions. Due to the harsh environment at the taphole area, with high temperatures and frequent water cooling and humidity, the traditional mud gun horizontal adjusting rod, with one end close to the top of the taphole, often jams and cannot be adjusted, requiring emergency replacement and disrupting production. Adjustment requires loosening the lock nut first, then tightening it after adjustment. Because the lock nut at one end of the rod is too close to the taphole and generates high temperatures, this increases labor intensity and poses a safety hazard. Furthermore, the adjusting rod's disc spring box is welded to prevent loosening; repairing or replacing the disc spring requires cutting the welded area, which can easily damage the threads and affect maintenance efficiency. To solve these problems, a new mud gun horizontal adjusting rod is designed. Utility Model Content
[0003] The purpose of this utility model is to provide a horizontal adjustment rod for the mud gun in front of the furnace, which is convenient to adjust and will not get stuck, thus solving the problems existing in the background technology.
[0004] The technical solution of this utility model is:
[0005] A horizontal adjustment rod for a mud gun in front of a furnace includes a flat head, a flanged connecting sleeve, a flanged disc spring box, a retaining ring, a pressure cap, a disc spring, a high-strength nut, a disc spring rod, an adjusting screw sleeve, and a second flat head. One end of the adjusting screw sleeve is threadedly connected to the second flat head, and the other end of the adjusting screw sleeve is threadedly connected to the disc spring rod. The flanged disc spring box contains a disc spring that mates with the disc spring rod. One end of the disc spring has a retaining ring, and the other end of the disc spring has a pressure cap and a high-strength nut. The flanged disc spring box is connected to the flanged connecting sleeve, and the flanged connecting sleeve is connected to the first flat head.
[0006] The internal threads at both ends of the adjusting sleeve rotate in opposite directions.
[0007] The adjusting screw sleeve has a left sleeved lock nut on the flat head two at one end, and a right sleeved lock nut on the disc spring rod at the other end.
[0008] The adjusting screw sleeve has two perpendicular, non-intersecting holes that cooperate with the pry bar.
[0009] Both the first and second flat heads are equipped with pins and spherical bearings at their ends.
[0010] The beneficial effects of this utility model are:
[0011] (1) This tie rod will not get stuck and cannot be adjusted, which extends the service life of spare parts and reduces spare parts costs;
[0012] (2) This tie rod is adjusted on the side with lower temperature, which makes it convenient to adjust, reduces the labor intensity of maintenance, and improves efficiency;
[0013] (3) No gas cutting is required when disassembling and replacing disc springs, which facilitates maintenance, reduces workload and improves efficiency;
[0014] (4) This tie rod has the characteristics of simple structure, easy adjustment, easy maintenance and easy installation. Attached Figure Description
[0015] Figure 1 This is a three-dimensional perspective view of the present invention;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 This is a partial enlarged view of the present invention;
[0018] Figure 4 This is a perspective view of the adjusting screw sleeve of this utility model;
[0019] Figure 5 This is a cross-sectional view of the adjusting screw sleeve of this utility model;
[0020] In the diagram: 1. Flat head 1, 2. Flange connecting sleeve, 3. Flange disc spring box, 4. Retaining ring, 5. Pressure cap, 6. Disc spring, 7. High-strength nut, 8. Slotted nut, 9. Socket head bolt, 10. Stop block, 11. Disc spring pull rod, 12. Right lock nut with sleeve, 13. Adjusting screw sleeve, 14. Left lock nut with sleeve, 15. Flat head 2, 16. High-strength socket head bolt, 17. Pin shaft, 18. Spherical bearing. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and examples.
[0022] See attached document Figure 1-5 A horizontal adjustment rod for a mud gun in front of a furnace includes a flat head 1, a flanged connecting sleeve 2, a flanged disc spring box 3, a retaining ring 4, a pressure cap 5, a disc spring 6, a high-strength nut 7, a disc spring rod 11, an adjusting screw sleeve 13, and a flat head 2 15. One end of the adjusting screw sleeve 13 is threadedly connected to the flat head 2 15, and the other end of the adjusting screw sleeve 13 is threadedly connected to the disc spring rod 11. The flanged disc spring box 3 contains a disc spring 6 that mates with the disc spring rod 11. One end of the disc spring 6 is provided with a retaining ring 4, and the other end of the disc spring 6 is provided with a pressure cap 5 and a high-strength nut 7. The flanged disc spring box 3 is connected to the flanged connecting sleeve 2, and the flanged connecting sleeve 2 is connected to the flat head 1.
[0023] In this embodiment, refer to the appendix Figure 1-5 The adjusting lever consists of two parts: an adjusting part and a buffer part, wherein:
[0024] The adjusting part of the adjusting rod consists of a disc spring rod 11, a right-hand lock nut 12 with a sleeve, an adjusting screw sleeve 13, a left-hand lock nut 14 with a sleeve, and a flat head 15. The internal threads at both ends of the adjusting screw sleeve 13 are left-hand and right-hand respectively. During adjustment, rotating the adjusting screw sleeve 13 can lengthen or shorten the adjusting rod. After screwing the adjusting screw sleeve 13 into the disc spring rod 11 and the flat head 15, there is remaining cavity. Lubricating grease can be applied beforehand to prevent the threads from jamming. The adjusting screw sleeve 13 has two perpendicular, non-intersecting holes, which can be adjusted by inserting a pry bar and rotating it. The outer side is milled in four directions, and can also be adjusted by using a wrench. After the adjusting rod is adjusted, the right-hand lock nut 12 and the left-hand lock nut 14 with a sleeve are tightened in place to prevent loosening and protect the threads. The flat ends of the flat heads 11 and 15 are not the same length. The adjusting part and the flat head 15 are located at the fixed end where the mud gun temperature is lower, making adjustment convenient.
[0025] The buffer section of the adjusting rod consists of a flanged connecting sleeve 2, a flanged disc spring box 3, a retaining ring 4, a pressure cap 5, a disc spring 6, a high-strength nut 7, a slotted nut 8, an internal hex bolt 9, a stop block 10, a disc spring rod 11, and a high-strength internal hex bolt 16. The compression of the disc spring 6 is adjusted by the high-strength nut 7. To prevent the high-strength nut 7 from loosening, a spare nut, i.e., a slotted nut 8, is added. After the slotted nut 8 is tightened in place, it is fixed with the internal hex bolt 9, effectively preventing the high-strength nut 7 from loosening and facilitating disassembly and assembly. After the outer flanged disc spring box 3 is tightened in place, it is secured to the flanged connecting sleeve 2 with a high-strength internal hex bolt 16 to prevent loosening and facilitate disassembly and assembly.
Claims
1. A horizontal adjustment rod for a mud gun in front of a furnace, characterized in that: It includes a flat head (1), a flanged connecting sleeve (2), a flanged disc spring box (3), a retaining ring (4), a pressure cap (5), a disc spring (6), a high-strength nut (7), a disc spring rod (11), an adjusting screw sleeve (13), and a flat head (2) (15). One end of the adjusting screw sleeve (13) is threadedly connected to the flat head (2) (15), and the other end of the adjusting screw sleeve (13) is threadedly connected to the disc spring rod (11). The flanged disc spring box (3) is equipped with a disc spring (6) that cooperates with the disc spring rod (11). One end of the disc spring (6) is equipped with a retaining ring (4), and the other end of the disc spring (6) is equipped with a pressure cap (5) and a high-strength nut (7). The flanged disc spring box (3) is connected to the flanged connecting sleeve (2), and the flanged connecting sleeve (2) is connected to the flat head (1) (1).
2. The horizontal adjustment rod for the mud gun in front of the furnace according to claim 1, characterized in that: The internal threads at both ends of the adjusting sleeve (13) are rotated in opposite directions.
3. The horizontal adjustment rod for the mud gun in front of the furnace according to claim 2, characterized in that: The adjusting screw sleeve (13) has a left (14) sleeved lock nut on the flat head (15) at one end and a right (12) sleeved lock nut on the disc spring pull rod (11) at the other end.
4. The horizontal adjustment rod for the mud gun in front of the furnace according to claim 2, characterized in that: The adjusting screw sleeve (13) is provided with two vertical non-intersecting holes that cooperate with the pry bar.
5. The horizontal adjustment rod for the mud gun in front of the furnace according to claim 1, characterized in that: Both the flat head one (1) and the flat head two (15) are provided with a pin (17) and a spherical bearing (18) at their ends.