A device assembly for assisting in the removal of a hydraulic mud gun nozzle
The use of nozzle calipers and retaining rings to assist in the disassembly of hydraulic mud gun nozzles solves the problem of difficult disassembly of hydraulic mud gun nozzles, achieving efficient disassembly and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SANGANG MINGUANG
- Filing Date
- 2025-06-04
- Publication Date
- 2026-08-04
AI Technical Summary
Hydraulic mud gun nozzles are difficult to disassemble due to burn-out during blast furnace ironmaking, resulting in long replacement times and high labor intensity. Existing technologies cannot efficiently disassemble them.
The system employs a nozzle caliper and retaining ring assembly. The nozzle caliper is engaged at a fixed position and rotated by tapping. The retaining ring is then inserted to lock into the gap between the cannon head and the nozzle. The nozzle can be easily disassembled using the combination of the retaining ring and caliper.
It improves the efficiency of nozzle disassembly, reduces the labor intensity of operators, and simplifies the disassembly process.
Smart Images
Figure CN224590950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device component for assisting in the disassembly of a hydraulic mud gun nozzle, and relates to the field of blast furnace ironmaking equipment. Background Technology
[0002] In blast furnace ironmaking, hydraulic mud guns are commonly used for plugging the blast furnace inlet. Each hydraulic mud gun has a nozzle at its front end. During plugging, the nozzle is prone to burn-out due to contact with slag and iron, making it a consumable part of the equipment. When the nozzle burns out, replacing it is difficult and time-consuming, typically requiring 2-3 people and 10-15 minutes of work. The high temperature and relatively high dust content at the work site further complicate the labor-intensive process.
[0003] The nozzle is typically fixed to the cannon head using a fixed pin, or by fitting it onto the nozzle and rotating it to lock it onto a fixed point on the hydraulic clay cannon head. The latter is used as an example. The main reasons for the long nozzle replacement time are: First, after installation, the nozzle needs to be rotated to detach from the fixed point on the hydraulic clay cannon head. Using a sledgehammer to strike it is difficult, often resulting in the nozzle being knocked off and forced to be removed by gas cutting. Furthermore, the cannon head and nozzle protective sleeve expand when heated, making it even more difficult to rotate the nozzle off the fixed point after it has burned out. Second, after rotating it off the fixed point, the nozzle needs to be struck away from the cannon head to detach it. The point of force is only about 2cm, which is also very difficult and requires two people to strike simultaneously, otherwise it may become stuck on the cannon head.
[0004] Therefore, a device component for assisting in the disassembly of the hydraulic mud gun nozzle is proposed to solve the problems existing in the prior art. Utility Model Content
[0005] The purpose of this utility model is to address the defects or deficiencies in the existing technology by providing a device component for assisting in the disassembly of hydraulic mud cannon nozzles. By using nozzle calipers as extensions to engage with the nozzle fixing point, tapping the nozzle calipers easily rotates the nozzle. Then, inserting a nozzle retaining ring into the gap between the cannon head and the nozzle, and tapping the tapping point on the nozzle retaining ring disassembles the nozzle. The component has a simple structure, is easy to use, and can effectively improve the disassembly efficiency of nozzles while reducing the workload of operators.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a nozzle caliper 1 and a nozzle retaining ring 2. The nozzle caliper 1 includes a hammer head 11, and a nozzle retaining groove 111 is provided at the lower part of the front end of the hammer head 11. The nozzle caliper 1 acts on the nozzle fixing groove opening through the nozzle retaining groove 111. The nozzle retaining ring 2 includes a retaining ring part 21 and a clamping part 22. The retaining ring part 21 has a semi-circular structure, and the clamping part 22 is symmetrically arranged at the end of the retaining ring part 21 to form a U-shaped structure. The nozzle retaining ring 2 is inserted into the gap between the gun head and the nozzle through the retaining ring part 21 and is fastened by the clamping part 22.
[0007] Furthermore, the front end of the nozzle slot 111 protrudes upward to form a locking block 112, making the nozzle slot 111 form a V-shaped structure.
[0008] Furthermore, the cannon caliper 1 also includes a handle 12, which is located on the side of the hammer head 11 away from the cannon caliper groove 111.
[0009] Furthermore, the handle 12 is provided with anti-slip texture 13 at the end away from the hammer head 11.
[0010] Furthermore, a bolt fixing hole 24 is provided at the transition position between the retaining ring portion 21 and the clamping portion 22.
[0011] Furthermore, a hammer bolt 3 is provided inside the bolt fixing hole 24.
[0012] Furthermore, the side of the retaining ring 21 that contacts the gun head is the inner wall 23 of the retaining ring.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by using a cannon nozzle caliper as an extension to be inserted into the fixed position of the cannon nozzle, the cannon nozzle can be easily rotated by tapping the cannon nozzle caliper, and then inserting the cannon nozzle retaining ring into the gap between the cannon head and the cannon nozzle, and tapping the tapping point on the cannon nozzle retaining ring can disassemble the cannon nozzle. The component structure is simple and easy to use, which can effectively improve the disassembly efficiency of the cannon nozzle and reduce the labor intensity of the operator. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of the nozzle caliper 1 in this utility model; Figure 2 This is a schematic diagram of the structure of the nozzle retaining ring 2 in this utility model; Figure 3 yes Figure 2 The second angle view; Figure 4 yes Figure 3 Sectional view along the AA direction.
[0016] Explanation of reference numerals in the attached drawings: 1. Nozzle clamp; 2. Nozzle retaining ring; 3. Striking bolt; 11. Hammer head; 12. Handle; 13. Anti-slip texture; 21. Retaining ring part; 22. Clamping part; 23. Inner wall of retaining ring; 24. Bolt fixing hole; 111. Nozzle groove; 112. Clamping block. Detailed Implementation
[0017] See Figures 1-4 As shown, the technical solution adopted in this specific embodiment is as follows: It includes a nozzle caliper 1 and a nozzle retaining ring 2. The nozzle caliper 1 includes a hammer head 11, and a nozzle retaining groove 111 is provided at the lower part of the front end of the hammer head 11. The nozzle caliper 1 acts on the nozzle fixing groove through the nozzle retaining groove 111. The nozzle retaining ring 2 includes a retaining ring part 21 and a clamping part 22. The retaining ring part 21 has a semi-circular structure, and the clamping part 22 is symmetrically arranged at the end of the retaining ring part 21 to form a U-shaped structure. The nozzle retaining ring 2 is inserted into the gap between the gun head and the nozzle through the retaining ring part 21 and is fastened by the clamping part 22. In this embodiment, an auxiliary component for disassembling the nozzle is provided, namely a nozzle caliper and a nozzle retaining ring. Locate the fixing point between the cannon tip and the cannon head. At this point, the fixing point is locked in the cannon tip fixing groove. Place the cannon tip retainer on the hammer head into the groove opening at the edge of the cannon tip fixing groove. Use the sledgehammer to strike the hammer head, thereby causing the cannon tip to rotate. This will move the fixing point to the groove opening. During the rotation, the connection between the cannon tip and the cannon head will become relatively loose. At this point, insert the cannon tip retainer ring into the gap between the cannon tip and the cannon head. Continuously strike the cannon tip retainer ring to make it lock in place until it is completely locked. Then use the sledgehammer to strike the cannon tip retainer ring, causing the cannon tip to gradually move away from the side of the cannon head. The fixing point will move out of the groove opening of the cannon tip fixing groove. Continue to strike the cannon tip retainer ring to separate the cannon tip from the cannon head, achieving the purpose of easily disassembling the cannon tip.
[0018] More specifically, the front end of the nozzle slot 111 protrudes upward to form a locking block 112, making the nozzle slot 111 form a V-shaped structure. In this embodiment, the nozzle slot forms a V-shaped structure by setting the locking block, which can better lock with the nozzle fixing slot and ensure that the hammer will not slip when the nozzle is rotated.
[0019] More specifically, the nozzle caliper 1 also includes a handle 12, which is located on the side of the hammer head 11 away from the nozzle slot 111. The end of the handle 12 away from the hammer head 11 is provided with anti-slip texture 13. In this embodiment, by providing a handle on the side of the hammer head, it is easy to hold. At the same time, the anti-slip texture is provided at the end of the handle, thus forming an anti-slip handle, which is convenient for operators to use.
[0020] More specifically, a bolt fixing hole 24 is provided at the transition position between the retaining ring 21 and the clamping part 22, and a hammering bolt 3 is provided in the bolt fixing hole 24. In this embodiment, a hammering bolt is provided to make it easier to hammer and find the hammering position. When the operator uses a sledgehammer to hammer the nozzle retaining ring, he can hammer the same position. The force position of the nozzle is more uniform and the disassembly effect is better.
[0021] More specifically, the side of the retaining ring 21 that contacts the gun head is the inner wall 23 of the retaining ring. When hammering in the gun nozzle retaining ring, it is necessary to ensure that the inner wall of the retaining ring is in close contact with the gun head to ensure the disassembly effect of the gun nozzle.
[0022] The working principle of this utility model is as follows: When disassembling the nozzle, locate the fixing point and insert the nozzle retaining groove 111 into the groove position on the edge of the fixing point. Due to its V-shaped structure, the retaining block 112 secures the retaining groove 111 to the groove position. At this time, hold the anti-slip texture 13 of the handle 12 and use a sledgehammer to strike the hammer head 11, thereby rotating the nozzle and moving the fixing point to the groove position. Remove the nozzle retaining caliper 1 and align the nozzle retaining ring 2 with the gap between the nozzle and the head, then hammer it in until the retaining ring is engaged. The inner wall 23 is in close contact with the outer wall of the gun head, while the clamping part 22 clamps the two sides of the gun head. At this time, the striking bolt 3 faces one side of the gun head. The two striking bolts 3 are struck alternately with a sledgehammer, so that the fixing point moves out of the slot of the nozzle fixing groove. Finally, the nozzle is completely separated from the gun head to achieve the disassembly effect. The nozzle caliper and the nozzle retaining ring are equivalent to two extension parts. Using a sledgehammer to strike the two extension parts can quickly and easily disassemble the nozzle from the gun head, greatly improving the disassembly efficiency and reducing the labor intensity.
[0023] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A device assembly for assisting in the disassembly of a hydraulic mud gun nozzle, characterized in that: It includes a nozzle caliper (1) and a nozzle retainer (2). The nozzle caliper (1) includes a hammer (11). The lower part of the front end of the hammer (11) is provided with a nozzle retainer groove (111). The nozzle caliper (1) acts on the nozzle fixing groove through the nozzle retainer groove (111). The nozzle retainer (2) includes a retainer part (21) and a clamping part (22). The retainer part (21) is a semi-circular structure. The clamping part (22) is symmetrically arranged at the end of the retainer part (21) to form a U-shaped structure. The nozzle retainer (2) is inserted into the gap between the gun head and the nozzle through the retainer part (21) and is fastened by the clamping part (22).
2. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 1, characterized in that: The front end of the nozzle slot (111) protrudes upward to form a locking block (112), so that the nozzle slot (111) forms a V-shaped structure.
3. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 1, characterized in that: The nozzle caliper (1) also includes a handle (12), which is located on the side of the hammer head (11) away from the nozzle slot (111).
4. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 3, characterized in that: The handle (12) is provided with anti-slip texture (13) at the end away from the hammer head (11).
5. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 1, characterized in that: A bolt fixing hole (24) is provided at the transition position between the retaining ring part (21) and the clamping part (22).
6. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 5, characterized in that: A hammer bolt (3) is provided in the bolt fixing hole (24).
7. The device assembly for assisting in the disassembly of a hydraulic mud gun nozzle according to claim 1, characterized in that: The side of the retaining ring (21) that contacts the gun head is the inner wall (23) of the retaining ring.