Transverse blowing deoxidizing lance

Abstract

This utility model discloses a horizontal blowing deoxidizing spray gun, including a gun barrel, a gun body, a first fastening mechanism, a second fastening mechanism, and a third fastening mechanism. A positioning flange and a fixing bracket are fixedly fixed at intervals along the length of the gun barrel at the end furthest from the gun body. A positioning flange is also fixed to the side of the gun barrel near the gun body at the side of the fixing bracket. A protective tube is fixed to the gun body along its length. The gun body is filled with refractory material. Multiple straight steel bars are uniformly fixed along the circumference of the inner wall of the gun body. A spiral steel bar is also fixed along the circumference of the inner wall of the gun body, extending along the length of the gun body and fixed to the multiple straight steel bars. Multiple sets of the first fastening mechanisms are evenly spaced along the length of the gun body. Each set of the first fastening mechanisms includes an anchor bar and an anchor ring, with the anchor ring extending into the refractory material to secure both. This utility model aims to solve the technical problem of short service life of spray guns.

Description

Technical Field

[0001] This utility model belongs to the field of deoxygenation spray gun technology, and particularly relates to a horizontal blowing deoxygenation spray gun. Background Technology

[0002] Currently, oxygen blowing is a crucial step in the smelting process of stainless steel and high-speed steel in the metallurgical industry. Its core function is to promote chemical reactions, improve production efficiency, and enhance product quality by blowing oxygen into the molten metal or furnace charge, utilizing the strong oxidizing properties of oxygen.

[0003] The effectiveness of deoxidation directly affects the quality of steel. Currently, the service life of deoxidation spray guns is not ideal. This is because when the spray gun is inserted into molten steel, the intense heat of the molten steel causes severe thermal corrosion to the gun body, resulting in insufficient adhesion between the internal structure of the gun body and the refractory layer. This easily leads to thermal expansion, cracking, and detachment of the refractory layer, resulting in a short service life for the spray gun. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a horizontal blowing deoxygenation spray gun.

[0005] To achieve the above objectives, this utility model provides a horizontal blowing deoxidizing spray gun, comprising a gun rod, a gun body detachably connected to one end of the gun rod, and a first fastening mechanism, a second fastening mechanism, and a third fastening mechanism disposed within the gun body. The gun rod, at its length, is fixedly provided with positioning flanges and fixing brackets at intervals along its length. A positioning flange is also fixedly provided on the side of the gun rod near the fixing brackets. The gun body is internally hollow and has a protective tube fixed at its center. The protective tube extends along the length of the gun body, with its end extending beyond the gun body. The gun body is filled with refractory material. Multiple straight reinforcing bars are uniformly fixed along the circumference of the inner sidewall of the gun body. A spiral reinforcing bar is also provided along the circumference of the inner sidewall of the gun body, and the spiral reinforcing bar is fixed along the length of the gun body and to the multiple straight reinforcing bars.

[0006] The first fastening mechanism consists of multiple sets, evenly spaced along the length of the gun body. Each set of the first fastening mechanism includes an anchoring rib fixed inside the protective tube and an anchoring ring fixed on the outer circumference of the protective tube. The anchoring ring extends into the refractory material to fix the two.

[0007] Optionally, the second fastening mechanism is in multiple sets and is spaced apart along the length of the gun body. Each set of the second fastening mechanism includes two symmetrical steel meshes, and the two ends of the steel meshes are respectively fixed to the spiral steel bar and the protective tube.

[0008] Optionally, the intersections of the steel mesh are respectively wrapped with steel wires.

[0009] Optionally, the end of the reinforcing wire away from the intersection is bent into a hook shape and extends into the refractory material.

[0010] Optionally, the number of the third fastening mechanisms is multiple sets, and they are spaced apart along the length of the gun body. Each set of the third fastening mechanisms includes a steel bar arranged along the diameter of the gun body. The steel bar is wrapped around the protective tube and has claw hooks fixed at both ends. The two claw hooks hook the straight steel bar, and the hooks of the claw hooks extend into the refractory material.

[0011] Optionally, the hook angle of the eagle claw hook is 130-140°.

[0012] Furthermore, the hook angle of the eagle claw hook is 135°.

[0013] Optionally, a cross-blowing nozzle is passed through the end of the protective tube away from the gun barrel. The cross-blowing nozzle is arranged along the diameter of the gun body and is fixed and connected to the protective tube. Both ends of the cross-blowing nozzle extend outside the gun body.

[0014] Optionally, the gun barrel and the gun body are fixed together by upper and lower connecting flanges, and the gun barrel is fixed with a stiffening plate on the side of the upper and lower connecting flanges near the positioning flange.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the setting of the first fastening mechanism, the second fastening mechanism and the third fastening mechanism, can better hold the refractory material, making it less prone to cracking and falling off, thereby helping to extend the service life of the spray gun.

[0017] 2. By limiting the angle of the eagle claw hook, this utility model enables it to penetrate the refractory material more firmly, strengthens the bond with the refractory material, makes it less prone to cracking and falling off, and also helps to improve the service life of the spray gun. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a partial sectional view showing the protective tube.

[0021] Figure 3 This is a partial sectional view to show the second fastening mechanism.

[0022] Figure 4 This is a partial sectional view to show the third fastening mechanism.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Gun barrel; 11. Positioning flange; 12. Fixing bracket; 13. Upper and lower connecting flanges; 14. Rib plate; 2. Gun body; 21. Protective tube; 22. Horizontal blow nozzle; 23. Straight steel bar; 24. Spiral steel bar; 3. First fastening mechanism; 31. Anchor ring; 4. Second fastening mechanism; 41. Steel mesh; 42. Steel wire; 5. Third fastening mechanism; 51. Steel bar; 52. Claw hook. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Reference Figures 1-3 A horizontal blowing deoxidizer lance includes a lance 1, a lance body 2, a first fastening mechanism 3, a second fastening mechanism 4, and a third fastening mechanism 5. The lance 1 is located at one end of the lance body 2 and is detachably connected to the lance body 2. The lance body 2 is hollow internally, and a protective tube 21 is fixed at its center. The protective tube 21 is arranged along the length of the lance body 2, with one end of the protective tube 21 extending outside the lance body 2 away from the lance 1. A horizontal blowing nozzle 22 is fixed at the end of the protective tube 21 away from the lance 1. The horizontal blowing nozzle 22 passes through the protective tube 21, communicates with the interior of the protective tube 21, and is arranged along the diameter of the lance body 2, with both ends of the horizontal blowing nozzle 22 extending outside the lance body 2. When the lance 1 or the protective tube 21 is blocked, oxygen can be blown into the horizontal blowing nozzle 22 to reduce blockage. The lance body 2 is filled with refractory material, which is cast inside the lance body 2. The first fastening mechanism 3, the second fastening mechanism 4, and the third fastening mechanism 5 are respectively installed inside the gun body 2 and are used to strengthen the grip between the protective tube 21 and the refractory material.

[0027] Reference Figure 1 A positioning flange 11 is fixedly installed at the end of the gun barrel 1 away from the gun body 2. A fixing bracket 12 is fixedly installed on the side of the gun barrel 1 near the gun body 2, and a positioning flange 11 is also fixedly installed on the side of the gun barrel 1 near the gun body 2, for easy connection to the oxygen station. The gun barrel 1 and the gun body 2 are fixed together by upper and lower connecting flanges 13, and a stiffening plate 14 is fixedly installed on the side of the upper and lower connecting flanges 13 near the positioning flange 11 to strengthen the firmness between the gun barrel 1 and the gun body 2.

[0028] Reference Figure 2Multiple straight steel bars 23 are evenly spaced along the circumference of the inner wall of the gun body 2, and the multiple straight steel bars 23 are all arranged along the length direction of the gun body 2. Spiral steel bars 24 are arranged along the circumference of the inner wall of the gun body 2, and the spiral steel bars 24 are arranged along the length direction of the gun body 2, and are respectively fixed to the multiple straight steel bars 23.

[0029] Reference Figures 2-4 The first fastening mechanism 3 consists of multiple sets, evenly spaced along the length of the gun body 2. Each set of the first fastening mechanism 3 includes an anchor bar and an anchor ring 31. The anchor bar is fixed inside the protective tube 21 (not shown in the figure), and the anchor ring 31 is fixed on the outer circumference of the protective tube 21 and also fixed to the refractory material. The second fastening mechanism 4 also consists of multiple sets, three in this embodiment, spaced along the length of the gun body 2. Each set of the second fastening mechanism 4 includes two symmetrically arranged steel meshes 41. The steel meshes 41 are located inside the refractory material, with the top end fixed to the spiral steel bar 24 and the bottom end fixed to the protective tube 21. The intersections of the steel meshes 41 are also wrapped with steel wires 42, with the end of the steel wires 42 away from the intersections being hook-shaped and extending into the refractory material for better gripping. The third fastening mechanism 5 also consists of multiple sets, evenly spaced along the length of the gun body 2. Each group of third fastening mechanisms 5 includes a steel bar 51, which is arranged along the diameter of the gun body 2 and wraps around the protective tube 21. Claw hooks 52 are fixed to both ends of the steel bar 51, and each claw hook 52 hooks a straight steel bar 23. The claw hooks 52 extend into the refractory material, and the hook angle of the claw hooks 52 is 135°, strengthening the bond between the protective tube 21 and the steel bar.

[0030] The working principle of this utility model is as follows: When in use, the positioning flange 11 is connected to the oxygen station, and then the spray gun is inserted into the molten iron to spray oxygen into the molten iron for oxygen blowing treatment. The oxygen will be sprayed out from the end of the protective pipe 21 away from the gun rod 1, and also from both ends of the horizontal blowing nozzle 22. Due to the setting of the first fastening mechanism 3, the second fastening mechanism 4 and the third fastening mechanism 5, the grip of the refractory material can be strengthened, reducing the refractory material from cracking and large-area falling off, and thus improving the service life of the spray gun.

[0031] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A horizontal blowing deoxidizer spray gun, characterized in that: The gun includes a gun barrel (1), a gun body (2) detachably connected to one end of the gun barrel (1), a first fastening mechanism (3), a second fastening mechanism (4), and a third fastening mechanism (5) disposed within the gun body (2). The gun barrel (1) is provided with a positioning flange (11) and a fixing bracket (12) at intervals along its length at the end away from the gun body (2). The gun barrel (1) is also provided with a positioning flange (11) on the side of the fixing bracket (12) near the gun body (2). The gun body (2) is internally hollow and has a central position. A protective tube (21) is fixedly provided at the gun body (2). The protective tube (21) is arranged along the length direction of the gun body (2), and the end of the protective tube (21) away from the gun rod (1) extends out of the gun body (2). The gun body (2) is filled with refractory material. A plurality of straight steel bars (23) are uniformly fixed along the circumference of the inner sidewall of the gun body (2). A spiral steel bar (24) is arranged along the circumference of the inner sidewall of the gun body (2). The spiral steel bar (24) is arranged along the length direction of the gun body (2) and is fixed to the plurality of straight steel bars (23). The number of the first fastening mechanism (3) is multiple, and they are evenly spaced along the length of the gun body (2). Each group of the first fastening mechanism (3) includes an anchoring bar fixed in the protective tube (21) and an anchoring ring (31) fixed on the outer circumference of the protective tube (21). The anchoring ring (31) extends into the refractory material to fix the two.

2. The horizontal blowing deoxidizer spray gun according to claim 1, characterized in that: The second fastening mechanism (4) is in multiple sets and is spaced apart along the length of the gun body (2). Each set of the second fastening mechanism (4) includes two symmetrical steel meshes (41), and the two ends of the steel meshes (41) are fixed to the spiral steel bar (24) and the protective tube (21) respectively.

3. The horizontal blowing deoxidizer spray gun according to claim 2, characterized in that: The intersections of the steel mesh (41) are respectively wrapped with steel wires (42).

4. The horizontal blowing deoxidizer spray gun according to claim 3, characterized in that: The end of the steel wire (42) away from the intersection point is bent into a hook shape and extends into the refractory material.

5. The horizontal blowing deoxidizer spray gun according to claim 1, characterized in that: The number of the third fastening mechanism (5) is multiple and they are spaced apart along the length of the gun body (2). Each group of the third fastening mechanism (5) includes a steel bar (51) arranged along the diameter of the gun body (2). The steel bar (51) wraps around the protective tube (21) and is fixed with claw hooks (52) at both ends. The two claw hooks (52) hook the straight steel bar (23) respectively, and the hooks of the claw hooks (52) extend into the refractory material.

6. The horizontal blowing deoxidizer spray gun according to claim 5, characterized in that: The hook angle of the eagle claw hook (52) is 130-140°.

7. The horizontal blowing deoxidizer spray gun according to claim 1, characterized in that: The end of the protective tube (21) away from the gun barrel (1) is connected to a cross-blowing nozzle (22). The cross-blowing nozzle (22) is arranged along the diameter of the gun body (2) and is fixed and connected to the protective tube (21). Both ends of the cross-blowing nozzle (22) extend out of the gun body (2).

8. The horizontal blowing deoxidizer spray gun according to claim 1, characterized in that: The gun barrel (1) and the gun body (2) are fixed by upper and lower connecting flanges (13), and the gun barrel (1) is fixed with a stiffening plate (14) on the side of the upper and lower connecting flanges (13) near the positioning flange (11).

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