Tempering-preventing quick connector for oxygen lance of smelting enterprise
By using check valves, rotary joints, and flame arresters in oxygen blowing pipes in smelting enterprises, the problem of spark backflow at pipe connections has been solved, achieving higher sealing performance and safety, reducing the risk of worker burns, and improving ease of use.
Patent Information
- Application Number
- CN202520289181.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing smelting processes, the sealing of pipe connections is not strong enough, which can easily cause sparks to flow back and cause hand injuries to workers.
A check valve and a rotary joint are used to connect the oxygen supply hose and the oxygen burning hose. A flame arrester is used to prevent backflow of sparks, and a swirling guide vane is used to extinguish the sparks. A rotary joint and a fixed tube are used to avoid burns.
It improves the sealing and safety of pipe connections, prevents spark backflow, reduces the risk of worker burns, and enhances ease of use and practicality.
Smart Images
Figure CN223579716U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper smelting technology, specifically to a quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises. Background Technology
[0002] Currently, in smelting, the use of oxygen to discharge molten metal is quite common and even indispensable. For example, in bottom-blown furnace lead smelting, oxygen pipes are used to discharge slag from the slag outlet. In copper smelting furnaces, oxygen is used to open the copper outlet to discharge copper. Oxygen pipes are generally 8-10m long and about 1-1.5cm in diameter. One end of the oxygen pipe is connected to a pressure-resistant rubber hose and a pure oxygen source, and the other end is heated. The high-temperature reaction between oxygen and iron, the high-pressure airflow purging, and the reaction of oxygen with copper at high temperature, which melts and drips, open the copper outlet to discharge copper.
[0003] In current smelting processes, special attention is paid to the connection between pipes. Most of them are connected by pipe sleeves or flanges, which not only have poor sealing performance, but also make it easy for sparks to flow back, causing the temperature of the pipe joints to be too high, which can easily lead to injury to the workers' hands.
[0004] Based on this, this utility model designs a quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a quick-connect coupling for preventing backfire in oxygen blowing pipes used in smelting enterprises, in order to solve the aforementioned technical problems.
[0006] To achieve the above objectives, the utility model provides the following technical solution:
[0007] A quick-connector for preventing backfire in oxygen blowing pipes used in smelting enterprises includes an oxygen supply rubber hose. A sleeve is fitted over the outer wall of the oxygen supply rubber hose, and a flexible hose is threaded into the inner wall of the sleeve. A circular flange is fixedly connected to one side of the oxygen supply rubber hose, and a screw is threaded into one side of the circular flange. A nut is threaded into the other side of the circular flange. A rotary joint is fixedly connected inside the circular flange, and an oxygen combustion pipe is fixedly connected inside the rotary joint. A check valve is fixedly connected to the outer wall of the oxygen combustion pipe. The check valve prevents backflow of sparks in the pipeline system during use and can open or close according to the direction of oxygen flow, facilitating operation. Furthermore, the connection between the oxygen supply rubber hose and the oxygen combustion pipe via the rotary joint makes the pipeline connection more convenient and faster, thereby improving the practicality of the connector in use.
[0008] In a further preferred embodiment, a connecting pipe is fixedly connected to the outer wall of the oxygen supply hose, and a flame arrester is fixedly connected to the outer wall of the connecting pipe. A rotating shaft is rotatably connected inside the flame arrester, and a blade is fixedly connected to the outer wall of the rotating shaft. An outlet is fixedly connected to the top of the flame arrester. By installing the flame arrester, if some sparks flow back into the oxygen supply hose, the flame arrester is activated. The sparks rotate with the rotating shaft, driving the blade to rotate. The swirling guide vanes guide the sparks to rotate and flow, extinguishing large spark dust particles by colliding with the guide vanes or the pipe wall, thereby improving the practicality of the connector.
[0009] More preferably, a fixing tube is sleeved on one side of the oxygen delivery hose, and a circular disc is fixedly connected to one side of the fixing tube. By installing the fixing tube, it is convenient for workers to come into contact with the oxygen delivery hose through the fixing tube, so as to avoid burns caused by oxygen backfire in the pipeline. At the same time, the circular disc can block the oxygen backfire in the pipeline.
[0010] More preferably, the rotary joint has an oil inlet at its top, and a ball bearing is movably connected inside the rotary joint. A gasket is fixedly connected to one side of the ball bearing. By installing the bearing, the load of the moving parts can be borne and guided during use, reducing friction loss under load, while also reducing noise and vibration, and facilitating the connectivity of the device during use.
[0011] More preferably, a connecting block is fixedly connected to one side of the oxygen-burning pipe, and a connecting joint is fixedly connected to one side of the connecting block. By installing the connecting joint, oxygen can flow in the pipe and be delivered to the required location, while also ensuring the tightness of the pipe and preventing oxygen leakage during transportation.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In this invention, by installing a check valve, it is possible to prevent sparks from flowing back into the pipeline system during use. The valve can be opened or closed according to the direction of oxygen flow, making it convenient for workers to use. At the same time, the oxygen delivery hose and the oxygen combustion hose are connected by a rotary joint, making the pipeline connection more convenient and faster, thereby improving the practicality of the joint in use.
[0014] In this invention, by installing a flame arrester, if some sparks flow back into the oxygen supply hose, the flame arrester is activated. The sparks rotate with the rotating shaft, causing the blades to rotate. The swirling guide vanes guide the sparks to rotate and flow, extinguishing large spark dust particles by colliding with the guide vanes or the pipe wall, thereby improving the practicality of the connector. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0018] Figure 3 This is a schematic cross-sectional view of the present invention.
[0019] Figure 4 This utility model Figure 3 Enlarged cross-sectional structural diagram at point A in the middle;
[0020] Figure 5 This is a partial three-dimensional structural diagram of the present invention.
[0021] In the diagram: 1. Oxygen supply hose; 2. Sleeve; 3. Hose; 4. Circular flange; 5. Screw; 6. Nut; 7. Rotary joint; 8. Oxygen combustion pipe; 9. Check valve; 10. Connecting pipe; 11. Flame arrester; 12. Rotating shaft; 13. Blade; 14. Discharge port; 15. Fixed pipe; 16. Circular disc; 17. Oil inlet; 18. Ball bearing; 19. Gasket; 20. Connecting block; 21. Connecting joint. Detailed Implementation
[0022] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0023] Please see Figure 1 - Figure 5This utility model provides a technical solution: a quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises, including an oxygen supply rubber hose 1, a sleeve 2 fitted onto the outer wall of the oxygen supply rubber hose 1, a flexible hose 3 threaded inside the sleeve 2, a circular flange 4 fixedly connected to one side of the oxygen supply rubber hose 1, a screw 5 threaded onto one side of the circular flange 4, a nut 6 threaded onto the other side of the circular flange 4, a rotary joint 7 fixedly connected inside the circular flange 4, an oxygen combustion pipe 8 fixedly connected inside the rotary joint 7, and a check valve 9 fixedly connected to the outer wall of the oxygen combustion pipe 8. By installing the check valve 9, the valve can be opened or closed according to the direction of oxygen flow during use. At the same time, the oxygen supply rubber hose 1 and the oxygen combustion pipe 8 are connected through the rotary joint 7, increasing the sealing between the pipes.
[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a connecting pipe 10 is fixedly connected to the outer wall of the oxygen supply hose 1, and a flame arrester 11 is fixedly connected to the outer wall of the connecting pipe 10. A rotating shaft 12 is rotatably connected inside the flame arrester 11, and a blade 13 is fixedly connected to the outer wall of the rotating shaft 12. An outlet 14 is fixedly connected to the top of the flame arrester 11. By installing the flame arrester 11, when some sparks flow back into the oxygen supply hose 1, the flame arrester 11 is activated. The sparks rotate with the rotating shaft 12, driving the blade 13 to rotate. The swirling guide vanes guide the sparks to rotate and flow, extinguishing large spark dust particles by colliding with the guide vanes or the pipe wall, and then discharging them from the outlet 14.
[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a fixing tube 15 is sleeved on one side of the oxygen delivery rubber tube 1, and a circular disc 16 is fixedly connected to one side of the fixing tube 15. During use, the staff can contact the oxygen delivery rubber tube 1 through the fixing tube 15 to avoid the oxygen from backfired in the pipeline and causing burns. At the same time, the circular disc 16 can block the oxygen from backfired in the pipeline.
[0026] In this embodiment, as Figure 1 , Figure 3 and Figure 5 As shown, the rotary joint 7 has an oil inlet 17 on its top. The rotary joint 7 is movably connected to a ball bearing 18. A gasket 19 is fixedly connected to one side of the ball bearing 18. In use, the rotary joint 7 bears and guides the load of the moving parts through the ball bearing 18, reducing friction loss under load and reducing noise and vibration.
[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a connecting block 20 is fixedly connected to one side of the oxygen-burning pipe 8, and a connecting joint 21 is fixedly connected to one side of the connecting block 20. In use, the connecting joint 21 enables oxygen to flow in the pipe and be delivered to the required location, while also ensuring the tightness of the pipe and preventing oxygen leakage during transportation.
[0028] The usage and advantages of this utility model: The working process of this quick-connect oxygen blowing pipe anti-backfire coupling in smelting enterprises is as follows:
[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, during use, the oxygen supply hose 1 and the oxygen combustion hose 8 are connected by a rotary joint 7. Oxygen flows through the pipeline and is used for combustion through the oxygen combustion hose 8. Since there is a check valve 9 on the outer wall of the oxygen combustion hose 8, the valve can be opened or closed according to the direction of oxygen flow to prevent the backflow of sparks generated during oxygen combustion. If sparks flow back into the oxygen supply hose 1, the flame arrester 11 is activated. The sparks rotate with the rotating shaft 12, driving the paddle 13 to rotate. The swirling guide vanes guide the sparks to rotate and flow, extinguishing large spark dust particles by colliding with the guide vanes or the pipeline wall, and then discharging them from the outlet 14.
[0030] In the description of the utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0031] In utility models, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.
[0032] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises, characterized in that: The system includes an oxygen delivery hose (1), a sleeve (2) fitted onto the outer wall of the oxygen delivery hose (1), a hose (3) threaded inside the sleeve (2), a circular flange (4) fixedly connected to one side of the oxygen delivery hose (1), a screw (5) threaded onto one side of the circular flange (4), a nut (6) threaded onto the other side of the circular flange (4), a rotary joint (7) fixedly connected inside the circular flange (4), an oxygen combustion pipe (8) fixedly connected inside the rotary joint (7), and a check valve (9) fixedly connected to the outer wall of the oxygen combustion pipe (8).
2. The quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises according to claim 1, characterized in that: The outer wall of the oxygen supply rubber tube (1) is fixedly connected to a connecting pipe (10), the outer wall of the connecting pipe (10) is fixedly connected to a flame arrester (11), the inside of the flame arrester (11) is rotatably connected to a rotating shaft (12), the outer wall of the rotating shaft (12) is fixedly connected to a blade (13), and the top of the flame arrester (11) is fixedly connected to an outlet (14).
3. The quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises according to claim 1, characterized in that: A fixing tube (15) is sleeved on one side of the oxygen delivery rubber tube (1), and a circular disc (16) is fixedly connected to one side of the fixing tube (15).
4. The quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises according to claim 1, characterized in that: The rotary joint (7) has an oil inlet (17) at its top. A ball bearing (18) is movably connected inside the rotary joint (7). A gasket (19) is fixedly connected to one side of the ball bearing (18).
5. A quick-connect coupling for preventing backfire in oxygen blowing pipes of smelting enterprises according to claim 1, characterized in that: A connecting block (20) is fixedly connected to one side of the oxygen-burning tube (8), and a connecting connector (21) is fixedly connected to one side of the connecting block (20).