Calcium carbide furnace door water pipe
By combining the hollow ball head with the universal sleeve and the sealing ring design, the problem of frequent folding and damage of the water pipe at the furnace door of the calcium carbide furnace is solved, realizing multi-angle adjustment and water circuit sealing, and improving the production stability of the calcium carbide furnace.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG SHENGXIONG CALCIUM CARBIDE CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-12
Smart Images

Figure CN224353577U_ABST
Abstract
Description
Technical Field
[0001] This solution belongs to the field of furnace door water pipes, specifically involving a water pipe for a calcium carbide furnace door. Background Technology
[0002] The furnace door is a key and essential part of an electric submerged arc furnace. In the calcium carbide industry, the furnace door is generally made of one of four materials: high-alumina, pure carbon, silicon carbide, and corundum. The furnace door is the most critical and heaviest-loaded part of the calcium carbide furnace.
[0003] A search revealed a utility model patent with authorization announcement number CN111521021B, which discloses a novel furnace door structure for a calcium carbide industrial furnace. This structure is constructed from working lining bricks made of three different inorganic non-metallic materials. Specifically, the inner working surface at the bottom of the furnace door is constructed from the first working lining brick layer, the outer part of the bottom of the furnace door near the metal furnace shell is constructed from the second working lining brick layer, and the upper bridge of the furnace door is constructed from the third working lining brick layer.
[0004] During calcium carbide production, the furnace door is subjected to high temperatures (up to 1000℃) and corrosive gases for extended periods. Therefore, cooling water pipes are necessary to continuously cool the furnace door and prevent deformation or burnt-out. However, the water pipes are frequently folded, making them prone to breakage and leakage. This can reduce the load on the calcium carbide furnace, disrupting normal production. Utility Model Content
[0005] The purpose of this solution is to provide a water pipe for the furnace door of a calcium carbide furnace to solve the problem of water pipes easily breaking and leaking due to repeated folding.
[0006] To achieve the above objectives, this solution provides a water pipe for a calcium carbide furnace door, including a furnace door. A connecting nozzle is fixedly connected inside the furnace door, penetrating the door. A rubber hose is fixedly connected to the end of the connecting nozzle, and a hollow ball head is fixedly connected to the end of the rubber hose. A universal sleeve is movably connected to the outside of the hollow ball head. A water inlet pipe is slidably fitted onto the lower end of the universal sleeve. A fixing sleeve is fixedly connected to the bottom of the universal sleeve. An internally threaded conical sleeve is threadedly connected to the outside of the fixing sleeve. A sliding pin is slidably connected to the side wall of the fixing sleeve, penetrating the fixing sleeve. One end of the sliding pin abuts against the conical surface of the internally threaded conical sleeve, and the other end of the sliding pin is fixedly connected to a clamp, which abuts against the water inlet pipe.
[0007] The principle of this solution is as follows: In use, first, the water inlet pipe is fitted onto the bottom of the universal sleeve. Then, the locking pin is pulled by the lever, causing it to disengage from the locking disc, thus releasing the restriction on the internal threaded conical sleeve. Next, the internal threaded conical sleeve is rotated, causing it to compress the sliding pin radially, resulting in a uniform clamping force on the sleeve. This provides a stable clamping force on the water inlet pipe at the bottom of the universal sleeve. Compared to traditional clamp installation methods, this solution is more convenient to install and remove. Furthermore, the combination of the locking disc and the spring-driven locking pin ensures the stability of the sliding pin and the sleeve. The hollow ball head and universal sleeve's mating structure, combined with the sealing ring design, ensures water circuit sealing while allowing for multi-angle adjustment, and effectively prevents frequent folding and damage to the furnace door's hose.
[0008] The technical advantages of this solution are: through the combination of the hollow ball head and the universal sleeve, and the sealing ring design, multi-angle adjustment can be achieved while ensuring the water circuit is sealed, and the frequent folding and damage of the hose of the furnace door can be effectively avoided.
[0009] By adopting a linkage structure of sliding pin and internal thread conical sleeve, the internal thread conical sleeve compresses the sliding pin radially through the conical surface, causing the sleeve to generate a uniform clamping force, thereby achieving a stable clamping force on the water inlet pipe at the bottom of the universal sleeve. Compared with the traditional clamp installation method, it is more convenient to disassemble and assemble. At the same time, the combination of locking disc and spring-driven locking pin can ensure the stability of the sliding pin and the sleeve.
[0010] Furthermore, the jacket is in the shape of an arc plate and is made of rubber. The concave part of the jacket can be fastened to and fit snugly against the water inlet pipe.
[0011] Furthermore, a sealing ring is fixedly connected to the spherical portion of the hollow ball head, and the sealing ring is slidably connected to the inner wall of the universal sleeve. The sealing ring enhances the sealing performance between the hollow ball head and the universal sleeve.
[0012] Furthermore, a second spring is fitted around the outer side of the sliding pin. One end of the second spring is fixedly connected to the clamping sleeve, and the other end is fixedly connected to the inner wall of the fixing sleeve. The second spring allows a reaction force to be applied to the clamping sleeve, thus assisting in its repositioning.
[0013] Furthermore, a guide block is fixedly connected to the jacket, and a guide pin is fixedly connected to the inner wall of the fixed sleeve, with the guide pin slidably connected to the guide block. The guide pin and guide block provide guidance for the extension and retraction adjustment of the jacket.
[0014] Furthermore, a locking disc is fixedly connected to the outside of the universal sleeve, and a locking pin is slidably connected inside the internally threaded tapered sleeve. The locking pin passes through the locking disc and is slidably connected to it. A spring is installed inside the internally threaded tapered sleeve, with one end fixedly connected to the locking pin and the other end fixedly connected to the inner surface of the internally threaded tapered sleeve. The elastic force of the spring acts on the locking pin, ensuring it is always inserted into the locking disc. In addition, a ring of slots is provided on the locking disc for the insertion of the locking pin.
[0015] Furthermore, a lever is fixedly connected to the pin body of the locking pin, and the lever is slidably connected to the internally threaded tapered sleeve. The lever facilitates pushing and pulling the locking pin. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0017] Figure 2 This is an embodiment of the present utility model. Figure 1 A partial structural diagram;
[0018] Figure 3 This is an embodiment of the present utility model. Figure 1 A front sectional view;
[0019] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.
[0020] The following detailed explanation illustrates the specific implementation methods:
[0021] The reference numerals in the accompanying drawings of the instruction manual include: furnace door 1, connecting nozzle 2, rubber hose 3, hollow ball head 4, sealing ring 5, universal sleeve 6, water inlet pipe 7, fixing sleeve 8, internal thread conical sleeve 9, locking disc 10, locking pin 11, spring one 12, lever 13, sliding pin 14, clip 15, spring two 16, guide block 17, guide pin 18. Detailed Implementation
[0022] The basic implementation examples are as follows: Figures 1-4 The diagram shows a water pipe for a calcium carbide furnace door, comprising a furnace door 1. A connecting nozzle 2 is fixedly connected inside the furnace door 1, and the connecting nozzle 2 penetrates the furnace door 1. A rubber hose 3 is fixedly connected to the end of the connecting nozzle 2, and a hollow ball head 4 is fixedly connected to the end of the rubber hose 3. A universal sleeve 6 is movably connected to the outside of the hollow ball head 4. A sealing ring 5 is fixedly connected to the spherical portion of the hollow ball head 4, and the sealing ring 5 is slidably connected to the inner wall of the universal sleeve 6. The sealing ring 5 enhances the sealing performance between the hollow ball head 4 and the universal sleeve 6.
[0023] like Figure 3 , Figure 4 As shown, the lower end of the universal sleeve 6 is slidably fitted with a water inlet pipe 7. A fixed sleeve 8 is fixedly connected to the bottom of the universal sleeve 6. An internally threaded conical sleeve 9 is threadedly connected to the outside of the fixed sleeve 8. A sliding pin 14 is slidably connected to the side wall of the fixed sleeve 8, and the sliding pin 14 penetrates the fixed sleeve 8. One end of the sliding pin 14 abuts against the conical surface of the internally threaded conical sleeve 9, and the other end of the sliding pin 14 is fixedly connected to a clamp 15, which abuts against the water inlet pipe 7. The clamp 15 is an arc-shaped plate made of rubber. The concave part of the clamp 15 can be fastened to and fit snugly against the water inlet pipe 7. A second spring 16 is fitted on the outside of the pin of the sliding pin 14. One end of the second spring 16 is fixedly connected to the clamp 15, and the other end is fixedly connected to the inner wall of the fixed sleeve 8. The second spring 16 allows a reaction force to be applied to the clamp 15, providing auxiliary repositioning. A guide block 17 is fixedly connected to the sleeve 15, and a guide pin 18 is fixedly connected to the inner wall of the fixed sleeve 8. The guide pin 18 is slidably connected to the guide block 17. The guide pin 18 and the guide block 17 provide guidance for the extension and retraction adjustment of the sleeve 15.
[0024] like Figure 3 , Figure 4 As shown, a locking disc 10 is fixedly connected to the outside of the universal sleeve 6, and a locking pin 11 is slidably connected to the inside of the internally threaded tapered sleeve 9. The locking pin 11 passes through the locking disc 10 and is slidably connected to it. A spring 12 is installed inside the internally threaded tapered sleeve 9. One end of the spring 12 is fixedly connected to the locking pin 11, and the other end is fixedly connected to the inner surface of the internally threaded tapered sleeve 9. The elastic force of the spring 12 can act on the locking pin 11, ensuring that it is always inserted into the locking disc 10. In addition, a ring of slots is provided on the locking disc 10 for the insertion of the locking pin 11. A lever 13 is fixedly connected to the pin body of the locking pin 11, and the lever 13 is slidably connected to the internally threaded tapered sleeve 9. The lever 13 facilitates pushing and pulling the locking pin 11.
[0025] The specific implementation process of this utility model is as follows: In use, firstly, the water inlet pipe 7 is fitted onto the bottom of the universal sleeve 6. Then, the locking pin 11 is pulled by the lever 13, so that the locking pin 11 is disengaged from the locking disc 10, thereby releasing the restriction on the internal thread conical sleeve 9. Then, the internal thread conical sleeve 9 is rotated, and the internal thread conical sleeve 9 compresses the sliding pin 14 radially through the conical surface, so that the clamp 15 generates a uniform clamping force, thereby achieving a stable clamping force on the water inlet pipe 7 at the bottom of the universal sleeve 6. Compared with the traditional clamp installation method, disassembly and assembly are more convenient. At the same time, the combination of the locking disc 10 and the locking pin 11 driven by the spring 12 can ensure the stability of the sliding pin 14 and the clamp 15. Moreover, through the cooperation structure of the hollow ball head 4 and the universal sleeve 6, combined with the design of the sealing ring 5, the water circuit is sealed while realizing multi-angle adjustment, and the frequent folding and damage of the hose 3 of the furnace door 1 are effectively avoided.
[0026] This solution, through the combination of hollow ball head 4 and universal sleeve 6, and the design of sealing ring 5, achieves multi-angle adjustment while ensuring water circuit sealing, and effectively avoids frequent folding and damage of rubber hose 3 of furnace door 1.
[0027] By adopting the linkage structure of sliding pin 14 and internal thread conical sleeve 9, the internal thread conical sleeve 9 compresses the sliding pin 14 radially to shrink, so that the clamp 15 generates a uniform clamping force, thereby achieving a stable clamping force on the water inlet pipe 7 at the bottom of the universal sleeve 6. Compared with the traditional clamp installation method, it is more convenient to disassemble and assemble. At the same time, combined with the locking disc 10 and the locking pin 11 driven by spring 12, the stability of sliding pin 14 and clamp 15 can be guaranteed.
[0028] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A water pipe for a calcium carbide furnace door, comprising a furnace door, characterized in that: A connecting nozzle is fixedly connected inside the furnace door, and the connecting nozzle penetrates the furnace door. A rubber tube is fixedly connected to the end of the connecting nozzle, and a hollow ball head is fixedly connected to the end of the rubber tube. A universal sleeve is movably connected to the outside of the hollow ball head. A water inlet pipe is slidably sleeved at the lower end of the universal sleeve. A fixing sleeve is fixedly connected to the bottom of the universal sleeve. An internally threaded conical sleeve is threadedly connected to the outside of the fixing sleeve. A sliding pin is slidably connected to the side wall of the fixing sleeve, and the sliding pin penetrates the fixing sleeve. One end of the sliding pin abuts against the conical surface of the internally threaded conical sleeve, and the other end of the sliding pin is fixedly connected to a clamp, which abuts against the water inlet pipe.
2. The water pipe for the furnace door of a calcium carbide furnace according to claim 1, characterized in that: The jacket is in the shape of an arc plate and is made of rubber.
3. The water pipe for the furnace door of a calcium carbide furnace according to claim 1, characterized in that: A sealing ring is fixedly connected to the spherical part of the hollow ball head, and the sealing ring is slidably connected to the inner wall of the universal sleeve.
4. The water pipe for the furnace door of a calcium carbide furnace according to claim 1, characterized in that: A second spring is fitted on the outer side of the sliding pin. One end of the second spring is fixedly connected to the clamp, and the other end of the second spring is fixedly connected to the inner wall of the fixed sleeve.
5. A water pipe for a calcium carbide furnace door according to claim 1, characterized in that: A guide block is fixedly connected to the jacket, and a guide pin is fixedly connected to the inner wall of the fixed sleeve. The guide pin is slidably connected to the guide block.
6. A water pipe for a calcium carbide furnace door according to claim 1, characterized in that: The universal sleeve is externally fixedly connected to a locking disc, and the internal threaded tapered sleeve is internally slidably connected to a locking pin. The locking pin passes through the locking disc and is slidably connected to the locking disc. The internal threaded tapered sleeve is internally provided with a spring. One end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the internal threaded tapered sleeve.
7. A water pipe for a calcium carbide furnace door according to claim 6, characterized in that: A lever is fixedly connected to the pin body of the locking pin, and the lever is slidably connected to the internal threaded tapered sleeve.