Carbon oxygen lance of electric furnace

Abstract

The utility model discloses an electric furnace carbon oxygen lance, which relates to the field of carbon oxygen lances, and comprises a lance body, the tail part of the lance body is fixedly connected with a fixing plate, the lance body is fixedly connected with a material conveying pipe, the fixing plate is provided with a plurality of fixing holes, the fixing holes are fixedly connected with the material conveying pipe, the material conveying pipe is connected with a carding plate in a sliding manner, and the carding plate is fixedly connected with the lance body. The conveying pipe penetrates through the carding plate, and a connecting mechanism is fixedly connected between the fixing plate and the carding plate. The conveying pipe is carded and straightened through the carding plate, so that the obstruction of torsion generated by the spiral of the conveying pipe to the movement of the carbon-oxygen lance is eliminated, and the problems that the conveying pipe of the carbon-oxygen lance can generate spiral distortion in the frequent movement process, the part, close to the carbon-oxygen lance, of the conveying pipe can continuously apply axial torsion to the carbon-oxygen lance, and the carbon-oxygen lance cannot be damaged are solved. And the problem that the working personnel cannot accurately control the movement direction of the carbon-oxygen lance and the machining precision of the carbon-oxygen lance is affected due to the fact that the carbon-oxygen lance is blocked when being moved by the working personnel is solved.

Description

Technical Field

[0001] This utility model relates to the field of carbon-oxygen lance technology, and in particular to a carbon-oxygen lance for an electric furnace. Background Technology

[0002] With the advancement of industrialization, the quality requirements for steel metallurgy are becoming increasingly stringent. As the core equipment of electric furnace metallurgy, the performance and structure of the electric furnace carbon-oxygen lance have made significant progress after introducing advanced foreign technologies and combining them with domestic independent research and development achievements, and more high-quality new products have been developed.

[0003] The electric arc furnace carbon-oxygen lance is a key piece of equipment used in the electric arc furnace steelmaking process. It mainly consists of the lance body, nozzle, oxygen supply system, carbon supply system, and cooling system. Its core function is to precisely inject oxygen and carbon powder into the electric arc furnace, thereby achieving effective treatment of molten steel.

[0004] In existing electric furnace carbon oxygen lances, the carbon oxygen lance feed tube will spiral and twist during frequent movement. The part of the feed tube near the carbon oxygen lance will continuously apply axial torque to the carbon oxygen lance, which will obstruct the operator when moving the carbon oxygen lance. This will make it impossible for the operator to accurately control the movement direction of the carbon oxygen lance, thus affecting the processing accuracy of the carbon oxygen lance. Therefore, there is an urgent need for a new type of electric furnace carbon oxygen lance. Utility Model Content

[0005] The main objective of this invention is to provide an electric furnace carbon-oxygen lance that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An electric furnace carbon-oxygen lance includes a lance body, a fixing plate fixedly connected to the tail of the lance body, a feeding pipe fixedly connected to the lance body, a plurality of fixing holes provided on the fixing plate, the plurality of fixing holes being fixedly connected to the feeding pipe, a combing plate slidably connected to the feeding pipe, the feeding pipe passing through the combing plate, and a connecting mechanism fixedly connected between the fixing plate and the combing plate.

[0008] Preferably, the connecting mechanism includes a hook and a spring, and a pair of hooks are fixedly connected to the opposite side of the fixing plate and the combing plate, and a spring is fixedly connected between the pair of hooks.

[0009] Preferably, the combing plate has an installation groove on the side near the fixing plate, a double-ended screw is rotatably connected in the installation groove, a pair of sliders are threaded onto the double-ended screw, an arc plate is fixedly connected to the pair of sliders, and a handle is fixedly connected to one end of the double-ended screw.

[0010] Preferably, a mounting ring is fixedly connected to the side of the combing plate away from the fixed plate, and multiple mounting brackets are fixedly connected to the mounting ring, with mounting rollers rotatably connected to the multiple mounting brackets.

[0011] Preferably, the mounting ring is sleeved on the conveying pipe, the mounting bracket is arranged around the conveying pipe, and the mounting roller is slidably connected to the conveying pipe.

[0012] Preferably, a brush head is fixedly connected to the mounting roller.

[0013] Compared with the prior art, the present invention has at least the following technical effects or advantages:

[0014] 1. This utility model fixes the feed pipe with a fixing plate and combs the feed pipe with a combing plate, so that the spiral on the feed pipe is away from the tail of the gun body, eliminating the influence of torque on the operator when moving the carbon-oxygen gun, and improving work efficiency.

[0015] 2. This utility model uses the rotating handle to clamp the feed tube with the arc plate on the double-headed screw, fixing the shape of the already combed feed tube and preventing it from bending and winding again in a short time. This avoids wear on the combing plate caused by frequent combing and extends the service life of the combing device.

[0016] 3. This utility model uses a spring connecting the fixed plate and the combing plate to make the combing plate automatically spring back after combing, thereby repeatedly combing to ensure the elimination of torque near the gun body. At the same time, the automatic springback avoids the situation where the feed tube will twist again when the combing plate is manually turned back, thus improving the working quality of the combing device.

[0017] 4. This utility model uses the installation roller to squeeze and eliminate the spiral on the feed pipe, while the brush head cleans the surface of the feed pipe in advance to prevent impurities and particles from getting stuck on the contact surface between the carding plate and the feed pipe, thus preventing damage to the feed pipe during sliding carding and extending the service life of the equipment.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a front view structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the fixing ring structure of this utility model.

[0023] In the diagram: 1. Gun body; 2. Fixing plate; 21. Fixing hole; 3. Feed pipe; 4. Combing plate; 41. Mounting groove; 5. Hanging ear; 6. Spring; 7. Double-ended screw; 71. Slider; 72. Arc plate; 73. Handle; 8. Mounting ring; 81. Mounting bracket; 82. Mounting roller; 83. Brush head. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings, wherein the same parts are represented by the same reference numerals. It should be noted that the terms “front”, “rear”, “left”, “right”, “upper” and “lower”, “bottom” and “top” used in the following description refer to the directions in the drawings, and the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific part, respectively.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-3 As shown, this utility model provides a technical solution for an electric furnace carbon oxygen lance, which solves the problem in the background art where the carbon oxygen lance feed tube will produce spiral twisting during frequent movement, and the part of the feed tube near the carbon oxygen lance will continuously apply axial torque to the carbon oxygen lance, which will obstruct the operator when moving the carbon oxygen lance, making it impossible for the operator to accurately control the movement direction of the carbon oxygen lance and affecting the processing accuracy of the carbon oxygen lance.

[0027] like Figure 1-3 As shown, an electric furnace carbon-oxygen lance includes a lance body 1, a fixing plate 2 fixedly connected to the tail of the lance body 1, a feeding pipe 3 fixedly connected to the lance body 1, a plurality of fixing holes 21 opened on the fixing plate 2, the plurality of fixing holes 21 being fixedly connected to the feeding pipe 3, a combing plate 4 slidably connected to the feeding pipe 3, the feeding pipe 3 passing through the combing plate 4, and a connecting mechanism fixedly connected between the fixing plate 2 and the combing plate 4. When the part of the feeding pipe 3 near the lance body 1 is spirally twisted, the combing plate 4 combs the spiral away from the lance body 1, eliminating the torque near the lance body 1, making it more convenient for operators to operate and improving work efficiency.

[0028] like Figure 1 As shown, the connecting mechanism includes a lug 5 and a spring 6. A pair of lugs 5 are fixedly connected to the opposite side of the fixing plate 2 and the carding plate 4, and a spring 6 is fixedly connected between the pair of lugs 5. When the carding plate 4 is used to card the feed tube 3, the spring 6 realizes the automatic rebound of the carding plate 4, thereby repeating the carding multiple times to ensure the elimination of torque near the gun body 1. The automatic rebound function of the carding plate 4 avoids the situation where the feed tube is twisted again when the carding plate 4 is manually pulled back, thus improving the working quality of the carding device.

[0029] like Figure 2 As shown, a mounting groove 41 is provided on the side of the combing plate 4 near the fixed plate 2. A double-ended screw 7 is rotatably connected in the mounting groove 41. A pair of sliders 71 are threaded onto the double-ended screw 7. An arc-shaped plate 72 is fixedly connected to the pair of sliders 71. A handle 73 is fixedly connected to one end of the double-ended screw 7. After repeated combing, the influence of the torque of the feed tube 3 on the gun body 1 is eliminated. By rotating the handle 73, the sliders 71 are moved towards the center of the double-ended screw 7, so that the arc-shaped plate 72 clamps the feed tube 3 and fixes the shape of the feed tube 3. This prevents the feed tube 3 from spiraling again in a short time, avoids wear of the combing plate 4 due to frequent combing, and extends the service life of the device.

[0030] like Figure 3 As shown, a mounting ring 8 is fixedly connected to the side of the carding plate 4 away from the fixed plate 2. Multiple mounting brackets 81 are fixedly connected to the mounting ring 8, and mounting rollers 82 are rotatably connected to the mounting brackets 81. The mounting ring 8 is sleeved on the feed pipe 3, and the mounting brackets 81 are arranged around the feed pipe 3. The mounting rollers 82 are slidably connected to the feed pipe 3, and brush heads 83 are fixedly connected to the mounting rollers 82. The mounting rollers 82 can not only card the feed pipe 3, thereby moving the spiral backward, but also the brush heads 83 can clean the surface of the feed pipe 3 in advance, preventing impurities and particles from getting stuck on the contact surface between the carding plate 4 and the feed pipe 3, thus preventing damage to the feed pipe 3 during sliding carding and extending the service life of the device.

[0031] The working principle of this type of electric furnace carbon-oxygen lance:

[0032] After the operator moves the gun body 1, the part of the feed tube 3 near the gun body 1 becomes spirally twisted. At this time, the combing plate 4 combs the threads on the feed tube 3 away from the gun body 1. The mounting roller 82 combs the threads away from the gun body 1. The brush head 83 cleans the surface of the feed tube 3 in advance. After one combing, the combing plate 4 is affected by the rebound pull of the spring 6 and automatically rebounds to the side of the fixed plate 2. This is repeated multiple times to ensure that the torque has no effect on the gun body 1. Then, the handle 73 is turned so that the arc plate 72 clamps the feed tube 3 to prevent the feed tube 3 from spiraling again in a short time. This solves the problem that the feed tube 3 of the carbon oxygen gun will become spirally twisted during frequent movement. The part of the feed tube 3 near the carbon oxygen gun will continuously apply axial torque to the carbon oxygen gun, which will hinder the operator when moving the carbon oxygen gun. This will make it impossible for the operator to accurately control the movement direction of the carbon oxygen gun and affect the processing accuracy of the carbon oxygen gun.

[0033] Although embodiments of the present invention 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric carbon oxygen lance comprising a lance body (1), characterised in that: A fixing plate (2) is fixedly connected to the tail of the gun body (1), and a feeding pipe (3) is fixedly connected to the gun body (1). A plurality of fixing holes (21) are opened on the fixing plate (2), and the plurality of fixing holes (21) are fixedly connected to the feeding pipe (3). A combing plate (4) is slidably connected to the feeding pipe (3). The feeding pipe (3) passes through the combing plate (4). A connecting mechanism is fixedly connected between the fixing plate (2) and the combing plate (4).

2. A carbon oxygen lance for electric furnaces according to claim 1, characterized in that: The connecting mechanism includes a hook (5) and a spring (6). A pair of hooks (5) are fixedly connected to the opposite side of the fixing plate (2) and the combing plate (4), and a spring (6) is fixedly connected between the pair of hooks (5).

3. A carbon oxygen lance for electric furnaces according to claim 1, characterized in that: The combing plate (4) has an installation groove (41) on one side near the fixing plate (2). A double-headed screw (7) is rotatably connected in the installation groove (41). A pair of sliders (71) are threaded onto the double-headed screw (7). An arc plate (72) is fixedly connected to the pair of sliders (71). A handle (73) is fixedly connected to one end of the double-headed screw (7).

4. The carbon oxygen lance for electric arc furnace according to claim 1, characterized in that: The combing plate (4) is fixedly connected to a mounting ring (8) on the side away from the fixing plate (2). Multiple mounting brackets (81) are fixedly connected to the mounting ring (8), and mounting rollers (82) are rotatably connected to the multiple mounting brackets (81).

5. An electric carbon oxygen lance according to claim 4, characterised in that: The mounting ring (8) is sleeved on the feed pipe (3), the mounting bracket (81) is arranged around the feed pipe (3), and the mounting roller (82) is slidably connected to the feed pipe (3).

6. An electric carbon oxygen lance according to claim 5, characterised in that: A brush head (83) is fixedly connected to the mounting roller (82).

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