High-performance oxygen lance for converter

Abstract

The utility model relates to the field of metallurgy, in particular to a high-performance oxygen lance for a converter, which comprises a bottom plate, moving blocks, mounting racks, an injection pipe, a compressed oxygen cabin and a rotating block, the mounting racks are symmetrically arranged on two sides of the upper end of the bottom plate, the moving blocks are movably mounted in the middle of the mounting racks, and the rotating block is rotatably mounted between the moving blocks. A straight-through groove is formed in the middle of the rotating block, and a compressed oxygen cabin is arranged on one side of the rotating block. According to the oxygen lance for the converter, the injection pipe with the adjustable angle position is utilized, the oxygen self-supply compression effect is achieved, the oxygen supply timeliness is achieved, and the problems that an existing oxygen lance for the converter lacks the timeliness high-power oxygen supply effect, oxygen supply is not timely, and the efficient smelting effect cannot be achieved are solved.

Description

Technical Field

[0001] The utility model relates to the field of metallurgy, in particular to a high-performance oxygen lance for a converter. Background Art

[0002] A converter is a type of equipment used to smelt metals, mainly used in blast furnace smelting and hydrometallurgical processes in the steel production process. It is a large container, usually cylindrical, with tilting and rotating functions. In the steel industry, the most common is converter smelting. Converter smelting refers to the process of placing iron ore and scrap steel materials (such as scrap steel and scrap iron) into a blast furnace or converter and injecting oxygen for smelting. Traditional converters use flame combustion to provide heat energy, but modern converters use more oxygen injection for efficient combustion to obtain higher smelting temperatures.

[0003] After searching, the patent announcement number is CN2419211Y, which discloses a porous oxygen lance nozzle. It is composed of a nozzle oxygen blowing end, a water guide plate, an oxygen distributor, an oxygen pipe, a high-pressure water inlet, a cooling water outlet, an oxygen lance outer tube, and an oxygen blowing hole. The characteristic is that the oxygen blowing holes on the oxygen lance nozzle are porous oxygen lance nozzles, and the angles between the oxygen blowing hole axis and the nozzle axis on the same oxygen lance nozzle are different. This design structure enables it to produce a large oxygen blowing coverage area and fast slag removal during the converter steelmaking blowing process, which can shorten the blowing time and save energy.

[0004] The existing technology can be used, but there is a defect: the existing converter oxygen lance lacks the problem of timely high-power oxygen supply, resulting in untimely oxygen supply and inability to achieve efficient smelting. In view of this, we propose a high-performance oxygen lance for converters to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose a high-performance oxygen lance for a converter.

[0006] The technical solution of the utility model is as follows: a high-performance oxygen gun for a converter comprises a base plate, a moving block, a mounting frame, an injection pipe, a compressed oxygen chamber and a rotating block, the mounting frames are symmetrically arranged on both sides of the upper end of the base plate, a moving block is movably installed in the middle of the mounting frame, a rotating block is rotatably installed between the moving blocks, a straight-through groove is arranged in the middle of the rotating block, and a compressed oxygen chamber is arranged on one side of the rotating block.

[0007] When using a high-performance oxygen gun for a converter in the present solution, the device can connect an external oxygen delivery pipeline to one end of the moving block during use, and oxygen can be directly delivered from the straight-through groove to the injection pipe for oxygen injection effect. During the injection process, opening control valve two will fill the compressed oxygen chamber with oxygen, and during the subsequent injection process, control valve one can be started, and the oxygen in the compressed oxygen chamber will enter the injection pipe along connecting pipe one to achieve the effect of pressurized injection. Compared with the previous direct pressurization from the delivery end, it is more time-effective. In addition, the rotating block can move up and down on the mounting frame under the action of the linear motor, and the locking knob can manually control the direction of the rotating block, which is flexible and convenient to operate.

[0008] Preferably, an injection pipe is provided on an outer wall of one side of the rotating block, and the injection pipe is connected to the straight-through groove.

[0009] Preferably, a connecting pipe 1 is provided on one side of the compressed oxygen chamber, and the connecting pipe 1 is connected to the compressed oxygen chamber.

[0010] Preferably, a control valve 1 is provided between the compressed oxygen chamber and the connecting pipe 1.

[0011] Preferably, a second connecting pipe is provided between the compressed oxygen chamber and the straight-through groove, and is controlled by a second control valve.

[0012] Preferably, a moving shaft is provided inside the mounting frame, the moving block is installed on the moving shaft via a linear motor, and locking knobs are provided on one side of the moving block and at the rotation center of the rotating block.

[0013] Preferably, mounting seats are provided at both ends of the bottom plate, and positioning holes are provided on the surfaces of the mounting seats.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The utility model can realize the oxygen storage effect by utilizing the design of a self-supplied high-pressure oxygen storage bin, and can quickly provide timely oxygen when a large amount of oxygen is needed.

[0016] 2. Based on beneficial effect 1, the device can use a linear motor in conjunction with a locking knob to fix the position and angle of the injection tube.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a side view schematic diagram of the utility model;

[0020] Figure 3 It is a top view schematic diagram of the utility model;

[0021] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0022] Reference numerals:

[0023] 1. Base plate; 2. Mounting seat; 3. Moving block; 4. Mounting frame; 5. Compressed oxygen chamber; 6. Rotating block; 7. Locking knob; 8. Connecting pipe 1; 9. Injection pipe; 10. Moving shaft; 11. Straight groove; 12. Control valve 2; 13. Control valve 1; 14. Connecting pipe 2. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] See also Figure 1-Figure 4 As shown, this embodiment is a high-performance oxygen lance for a converter, comprising a bottom plate 1, a moving block 3, a mounting frame 4, an injection pipe 9, a compressed oxygen chamber 5 and a rotating block 6, characterized in that:

[0030] The mounting frames 4 are symmetrically arranged on both sides of the upper end of the bottom plate 1, a moving block 3 is movably installed in the middle of the mounting frame 4, a rotating block 6 is rotatably installed between the moving blocks 3, a straight groove 11 is arranged in the middle of the rotating block 6, and a compressed oxygen chamber 5 is arranged on one side of the rotating block 6;

[0031] When the device is in use, the external oxygen delivery pipeline can be connected to one end of the moving block 3, and the oxygen can be directly delivered to the injection pipe 9 from the straight groove 11 to achieve the oxygen injection effect. During the injection process, opening the control valve 2 12 will fill the compressed oxygen chamber 5 with oxygen. During the subsequent injection process, the control valve 13 can be started, and the oxygen in the compressed oxygen chamber 5 will enter the injection pipe 9 along the connecting pipe 1 8 to achieve the effect of pressurized injection. Compared with the previous direct pressurization from the delivery end, it is more time-effective. In addition, the rotating block 6 can move up and down on the mounting frame 4 under the action of the linear motor, and the locking knob 7 can manually control the direction of the rotating block 6, which is flexible and convenient to operate.

[0032] Example 2

[0033] See also Figure 1-Figure 4 As shown, this embodiment is based on the embodiment 1 and further includes: an injection pipe 9 is provided on the outer wall of one side of the rotating block 6, the injection pipe 9 is connected with the straight groove 11, and the injection pipe 9 can inject oxygen for use in the converter.

[0034] A connecting pipe 8 is provided on one side of the compressed oxygen chamber 5 , and the connecting pipe 8 is connected to the compressed oxygen chamber 5 .

[0035] A control valve 13 is provided between the compressed oxygen chamber 5 and the connecting pipe 8 , and starting the control valve 13 can enable the compressed oxygen chamber 5 to provide high-pressure oxygen to the injection pipe 9 .

[0036] A connecting pipe 14 is provided between the compressed oxygen chamber 5 and the straight groove 11 and is controlled by a control valve 12. When the control valve 12 is started, oxygen can be filled into the compressed oxygen chamber 5 when the straight groove 11 delivers oxygen.

[0037] A moving shaft 10 is arranged inside the mounting frame 4, and the moving block 3 is mounted on the moving shaft 10 through a linear motor. A locking knob 7 is arranged on one side of the moving block 3 and the rotation center of the rotating block 6. The linear motor can drive the moving block 3 to move on the upper end of the moving shaft 10, and the locking knob 7 can manually adjust the rotation angle of the fixed rotating block 6. Mounting seats 2 are arranged at both ends of the bottom plate 1, and positioning holes are opened on the surface of the mounting seat 2. The positioning holes can be used to fix the device on the inner wall of the converter or the combustion position of the feed port.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-performance oxygen lance for a converter, comprising a base plate (1), a moving block (3), a mounting frame (4), an injection pipe (9), a compressed oxygen chamber (5) and a rotating block (6), characterized in that: Mounting frames (4) are symmetrically arranged on both sides of the upper end of the bottom plate (1), a moving block (3) is movably installed in the middle of the mounting frame (4), a rotating block (6) is rotatably installed between the moving blocks (3), a straight-through groove (11) is arranged in the middle of the rotating block (6), and a compressed oxygen chamber (5) is arranged on one side of the rotating block (6).

2. A high performance oxygen lance for a converter according to claim 1, characterized in that: An injection pipe (9) is provided on the outer wall of one side of the rotating block (6), and the injection pipe (9) is connected to the straight-through groove (11).

3. The high-performance oxygen lance for a converter according to claim 1, characterized in that: A connecting pipe 1 (8) is provided on one side of the compressed oxygen chamber (5), and the connecting pipe 1 (8) is connected to the compressed oxygen chamber (5).

4. A high performance oxygen lance for a converter according to claim 3, characterized in that: A control valve (13) is provided between the compressed oxygen chamber (5) and the connecting pipe (8).

5. The high performance oxygen lance for a converter according to claim 1, characterized in that: A second connecting pipe (14) is provided between the compressed oxygen chamber (5) and the straight-through groove (11), and is controlled by a second control valve (12).

6. The high performance oxygen lance for a converter according to claim 1, characterized in that: A moving shaft (10) is arranged inside the mounting frame (4), the moving block (3) is mounted on the moving shaft (10) via a linear motor, and a locking knob (7) is arranged on one side of the moving block (3) and at the rotation center of the rotating block (6).

7. The high performance oxygen lance for a converter according to claim 1, characterized in that: Mounting seats (2) are provided at both ends of the bottom plate (1), and positioning holes are provided on the surface of the mounting seats (2).

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