Furnace mouth purging device in converter tapping process

Abstract

The utility model relates to a converter mouth purging device in the converter tapping process, and belongs to the technical field of converter steelmaking in the metallurgical industry. According to the technical scheme, one end of a large rotating arm (4) is rotationally connected to a stand column (1) through a rotating body and a rotating body support, the other end of the large rotating arm (4) is rotationally connected with one end of a small rotating arm (13) through the rotating body and the rotating body support, a universal support (11) is rotationally connected to the other end of the small rotating arm (13) through the rotating body, a positioning sleeve (10) is arranged on the universal support (11), and the positioning sleeve (10) is connected with the stand column (1). The stainless steel purging pipe (7) penetrates through the positioning sleeve (10), one end of the stainless steel purging pipe (7) is connected with the nozzle (5), the other end of the stainless steel purging pipe (7) is connected with the elbow (14) and the control handle (15), and the elbow (14) is connected with the metal hose (16) through the quick connector (17). The device has the beneficial effects that bonded slag or steel at the converter mouth can be automatically, safely and efficiently cleaned, and the normal operation of the converter is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a converter tapping process purging furnace mouth device belongs to metallurgical industry converter steelmaking technical field. BACKGROUND

[0002] In the converter steelmaking process, furnace mouth sticky slag is an unavoidable problem. With the smelting, the furnace mouth will gradually accumulate sticky slag or steel, resulting in the furnace mouth diameter reduction, not only affecting the smooth operation of the operation such as adding scrap steel, but also possibly leading to poor flue gas emission, further exacerbating the splashing problem. The existing furnace mouth sticky slag cleaning method, manual cleaning is mostly used by artificial disassembly furnace car, not only low efficiency, and there are safety hazards, and using blowing oxygen lance purging, which may cause improper operation to lead to flue leakage and other accidents. SUMMARY

[0003] The utility model aims at providing a converter tapping process purging furnace mouth device, which can automatically, safely and efficiently clean the furnace mouth sticky slag or steel, ensure the normal operation of the converter, and solve the problems in the background art.

[0004] The technical scheme of the utility model is:

[0005] A converter tapping process purging furnace mouth device, comprising a stand, a rotating body support, a rotating body, a rotating large arm, a nozzle, a stainless steel purging pipe, a positioning sleeve, a universal support, a rotating small arm, an elbow, a control handle, a metal hose and a quick connector, one end of the rotating large arm is rotatably connected to the stand through the rotating body and the rotating body support, the other end of the rotating large arm is rotatably connected together with one end of the rotating small arm through the rotating body and the rotating body support, the universal support is rotatably connected to the other end of the rotating small arm through the rotating body, the positioning sleeve is hingedly arranged on the universal support, the stainless steel purging pipe passes through the positioning sleeve, one end of the stainless steel purging pipe is connected to the nozzle, the other end of the stainless steel purging pipe is connected to the elbow and the control handle, and the elbow is connected to the metal hose through the quick connector.

[0006] Further, the rotating large arm and the rotating small arm are horizontally arranged.

[0007] Further, the rotating body support is a U-shaped structure matched with the rotating body, the rotating body comprises a rotating shaft, a bearing and a roller, the roller is arranged on the rotating shaft through the bearing, and the two ends of the rotating shaft are arranged on the U-shaped structure.

[0008] Further, the inner diameter of the positioning sleeve matches the diameter of the stainless steel purging pipe.

[0009] The utility model has the advantages of:

[0010] (1) The furnace mouth sticky slag or steel can be quickly and efficiently cleaned, ensuring the normal operation and production efficiency of the converter.

[0011] (2) The purging parameters can be adjusted according to the thickness of the slag or steel at the furnace mouth and the diameter of the furnace mouth, making it suitable for converters of different specifications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial schematic diagram of the present invention in use;

[0014] Figure 3 This is a cross-sectional view of the nozzle and transition section of this utility model;

[0015] Figure 4 This is a cross-sectional view of the positioning sleeve of this utility model;

[0016] Figure 5 This is a cross-sectional view of the rotating body of this utility model;

[0017] Figure 6 This is a schematic diagram of the universal support of this utility model;

[0018] Figure 7 This is a schematic diagram of the rotating body support of this utility model;

[0019] In the diagram: 1. Column; 2. Rotary body support one; 3. Rotary body one; 4. Rotary boom; 5. Nozzle; 6. Transition section; 7. Stainless steel purge pipe; 8. Rotary body two; 9. Rotary body support two; 10. Positioning sleeve; 11. Universal support; 12. Rotary body three; 13. Rotary forearm; 14. Elbow; 15. Control handle; 16. Metal hose; 17. Quick coupling; 18. Converter. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] See attached document Figures 1-7A converter tapping process purging furnace mouth device includes a column 1, a rotating body support, a rotating body, a rotating boom 4, a nozzle 5, a stainless steel purging pipe 7, a positioning sleeve 10, a universal support 11, a rotating arm 13, an elbow 14, a control handle 15, a metal hose 16, and a quick connector 17. One end of the rotating boom 4 is rotatably connected to the column 1 via the rotating body and the rotating body support. The other end of the rotating boom 4 is rotatably connected to one end of the rotating arm 13 via the rotating body and the rotating body support. The universal support 11 is rotatably connected to the other end of the rotating arm 13 via the rotating body and the rotating body support. The positioning sleeve 10 is hinged on the universal support 11. The stainless steel purging pipe 7 passes through the positioning sleeve 10. One end of the stainless steel purging pipe 7 is connected to the nozzle 5. The other end of the stainless steel purging pipe 7 is connected to the elbow 14 and the control handle 15. The elbow 14 is connected to the metal hose 16 via the quick connector 17.

[0022] In this example, refer to the appendix. Figures 1-7 The device includes a column 1, a rotating body support 2, a rotating body 3, a rotating boom 4, a nozzle 5, a transition section 6, a stainless steel purge pipe 7, a second rotating body 8, a second rotating body support 9, a positioning sleeve 10, a universal support 11, a third rotating body 12, a rotating forearm 13, an elbow 14; a control handle 15, a metal hose 16, and a quick connector 17, wherein:

[0023] Column 1 is made of H-beams and is installed on one side of the firebreak wall on the 8.8-meter platform behind the furnace, with anchor bolts for positioning below.

[0024] Rotary body support 12 and rotary body support 29 have the same structure, both being U-shaped structures. Rotary body 13, rotary body 28 and rotary body 312 have the same structure, including a rotating shaft, bearings and rollers. The rollers are mounted on the rotating shaft through the bearings, and the two ends of the rotating shaft are mounted on the U-shaped structure. Rotary support 12 is fixed on column 1. One end of rotating arm 4 is rotatably connected to rotating support 12 via rotating body 13. The other end of rotating arm 4 is connected to rotating body 28. Rotating body 28 is rotatably mounted on rotating support 29. One end of rotating arm 13 is fixed to rotating support 29. The other end of rotating arm 13 is connected to rotating body 312. Universal support 11 is connected to the rotating shaft of rotating body 312. The shafts on both sides of positioning sleeve 10 are rotatably mounted on the groove of universal support 11. Stainless steel purge pipe 7 is installed inside positioning sleeve 10. One end of stainless steel purge pipe 7 is connected to nozzle 5. The other end of stainless steel purge pipe 7 is connected to elbow 14 and control handle 15. Elbow 14 is connected to metal hose 16 via quick connector 17.

[0025] The nozzle 5, transition section 6 and stainless steel purge pipe 7 are connected together to form a commonly used oxygen lance, and the transverse and longitudinal angles of the oxygen lance can be adjusted.

[0026] The rotating upper arm 4, the rotating lower arm 13, and the universal support 11 can each rotate horizontally.

[0027] See attached document Figure 1 , 2 The oxygen lance can adjust parameters such as nozzle size, jet intensity, angle, and purging time according to the diameter of the furnace opening and the thickness of the slag or steel, so as to achieve universal purging of the furnace opening, accurately blow away the cold steel stuck to the furnace opening, improve the cleaning effect, and achieve precise control.

[0028] This device employs an artificial intelligence-based control system that initiates a purging program based on the slag adhesion at the furnace mouth, enabling precise purging. By accurately controlling the movement of the oxygen lance and the purging time, safety accidents caused by improper operation are avoided.

Claims

1. A furnace mouth purging device for the converter tapping process, characterized in that: The system includes a column (1), a rotating body support, a rotating body, a rotating boom (4), a nozzle (5), a stainless steel purge pipe (7), a positioning sleeve (10), a universal support (11), a rotating arm (13), an elbow (14), a control handle (15), a metal hose (16), and a quick connector (17). One end of the rotating boom (4) is rotatably connected to the column (1) via the rotating body and the rotating body support. The other end of the rotating boom (4) is connected to the rotating arm (13) via the rotating body and the rotating body support. 3) One end is rotatably connected together, and the universal support (11) is rotatably connected to the other end of the rotating arm (13) through the rotating body. The universal support (11) is hinged with a positioning sleeve (10). The stainless steel purge pipe (7) passes through the positioning sleeve (10). One end of the stainless steel purge pipe (7) is connected to the nozzle (5). The other end of the stainless steel purge pipe (7) is connected to the elbow (14) and the control handle (15). The elbow (14) is connected to the metal hose (16) through the quick connector (17).

2. The converter tapping process purging furnace mouth device according to claim 1, characterized in that: The rotating upper arm (4) and rotating lower arm (13) are arranged horizontally.

3. The converter tapping process purging furnace mouth device according to claim 1, characterized in that: The rotating body support is a U-shaped structure that cooperates with the rotating body. The rotating body includes a rotating shaft, bearings, and rollers. The rollers are mounted on the rotating shaft through the bearings, and the two ends of the rotating shaft are mounted on the U-shaped structure.

4. A converter tapping process purging furnace mouth device according to claim 3, characterized in that: The inner diameter of the positioning sleeve (10) matches the diameter of the stainless steel purge tube (7).

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