Quick-change oxygen lance trolley

Abstract

The utility model relates to the technical field of converter steelmaking, in particular to a quick-change type oxygen lance trolley which comprises a trolley body, an inserting pipe boss and an oxygen lance boss, the inserting pipe boss and the oxygen lance boss are fixedly arranged on the trolley body, a groove is formed in the surface of the trolley body and communicated with a first through hole located in the top of the trolley body, and the inserting pipe boss and the oxygen lance boss are fixedly arranged on the trolley body. A groove is formed in the oxygen lance boss, a pulley is rotatably arranged in the groove, an oxygen lance notch with an opening in one end is formed in the oxygen lance boss, guide grooves are formed in the two sides of the closed end of the oxygen lance notch, a plurality of insertion openings are formed in the insertion pipe boss, and each insertion opening comprises a second through hole formed in the insertion pipe boss and a flange connected to the second through hole in a clamped mode. One end of the flange is fixedly connected with the inner inserting pipe, the end portion of the inner inserting pipe is in the form of a bell and spigot, and a fixing block fixedly arranged on a boss of the inserting pipe is arranged outside the flange. The replacement or installation speed of the oxygen lance on the oxygen lance trolley can be increased, the oxygen lance and the oxygen lance trolley are accurately installed, and the operation rate of a converter is further improved.

Description

Technical Field

[0001] This utility model relates to the field of converter steelmaking technology, specifically to a quick-change oxygen lance trolley. Background Technology

[0002] The oxygen lance is a crucial oxygen blowing device in converter steelmaking. The oxygen lance itself is stationary and requires a trolley for movement. The oxygen lance is mounted on the trolley, which, in conjunction with a drive mechanism, moves vertically to perform functions such as lowering and raising the lance, and changing its position for maintenance.

[0003] Currently, oxygen lance carriages used in traditional steel plants generally use flanges and bolts to fix the oxygen lances to the carriages. The installation process is quite cumbersome. In addition, due to errors in the manufacturing process of oxygen lances, their fitting dimensions may be slightly different. As a result, when installing the oxygen lance on the carriage, the size difference may cause the oxygen lance to fail to install, which may even damage the oxygen lance and seriously affect the production schedule. Utility Model Content

[0004] The purpose of this invention is to provide an oxygen lance trolley that can improve the installation speed of oxygen lances in converters.

[0005] The technical solution adopted by this utility model is: a quick-change oxygen lance trolley, comprising: a trolley body and a cannula boss and an oxygen lance boss fixedly disposed on the trolley body;

[0006] The surface of the trolley body is provided with a groove, which communicates with a first through hole located at the top of the trolley body, and a pulley is rotatably installed in the groove;

[0007] The oxygen lance protrusion is provided with an oxygen lance notch with one open end; there are guide grooves on both sides of the closed end of the oxygen lance notch.

[0008] The insertion tube protrusion is provided with multiple insertion interfaces, each including: a second through hole provided on the insertion tube protrusion and a flange snapped onto the second through hole, one end of the flange being fixedly connected to the inner insertion tube, and the end of the inner insertion tube being in the form of a socket.

[0009] The flange is provided with a fixing block that is fixedly mounted on the insertion tube boss;

[0010] Furthermore, multiple guide wheels are rotatably provided on both sides of the trolley body;

[0011] Furthermore, the open end of the oxygen lance notch is funnel-shaped, and the closed end is semi-circular.

[0012] Furthermore, the fixed block has an L-shaped cross-section, and a flexible pad is provided between the flange and the fixed block in the axial direction.

[0013] The beneficial effects of this utility model are:

[0014] 1. The oxygen lance can be replaced quickly; small oxygen lances can be replaced within 1 hour, and large oxygen lances within 2 hours, which improves the operating rate of the converter.

[0015] 2. The oxygen lance and the metal hose are well sealed.

[0016] 3. The oxygen lance and oxygen lance carriage are installed accurately, avoiding assembly errors that occur during processing, and no additional alignment is required. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of a quick-change oxygen lance cart according to the present invention;

[0018] Figure 2 This is a top view of the structure of a quick-change oxygen lance cart according to the present invention;

[0019] Figure 3 This is a side view of the structure of a quick-change oxygen lance cart according to the present invention;

[0020] Figure 4 This is a schematic diagram of the connector structure;

[0021] In the diagram: 1. Cart body; 2. Insertion tube boss; 3. Oxygen lance boss; 4. Guide wheel; 5. Oxygen lance notch; 6. Guide groove; 7. Groove; 8. Pulley; 9. First through hole; 10. Inner insertion tube; 11. Second through hole; 12. Flexible pad; 13. Fixing block; 14. Flange. Detailed Implementation

[0022] The technical solutions adopted by this utility model will be clearly and completely explained and described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-3 As shown, this utility model provides a quick-change oxygen lance cart, including a cart body 1 and a cannula boss 2 and an oxygen lance boss 3 fixedly mounted on the cart body 1.

[0024] The trolley body 1 is used to drive the entire oxygen lance trolley to move longitudinally on the converter platform. It preferably adopts a rectangular box structure with a groove 7 on its surface. The groove 7 communicates with a first through hole 9 located at the top of the trolley body 1. A pulley 8 is rotatably installed within the groove 7. Figure 1As shown in the example where two pulleys 8 are set in the groove 7, the main shaft of the pulley 8 can be fixed on the inner wall of the groove 7, or a main shaft can be set on the inner wall of the groove 7, and a pulley 8 can be rotatably fixed on the main shaft. In this way, a winch and a wire rope can be used to suspend the entire oxygen lance trolley above the converter. Specifically, the wire rope fixedly connected to the output shaft of the winch can be inserted into the groove 7 through the first through hole 9 at the top of the trolley body 1, and then sleeved on the pulley 8. By controlling the output shaft of the winch to tighten and loosen the wire rope, the height of the oxygen lance trolley above the converter platform can be adjusted.

[0025] In addition, as a preferred technical solution, multiple guide wheels 4 can be rotatably set on both sides of the trolley body 1. That is, the guide wheels 4 are used to set the entire oxygen lance trolley in the longitudinal rail above the converter platform, so as to provide guidance for the longitudinal movement of the oxygen lance trolley above the converter platform.

[0026] The oxygen lance boss 3 is used to fix the converter oxygen lance. It can be vertically fixed to the trolley body 1 by welding. The oxygen lance boss 3 has an oxygen lance notch 5 with one open end. Figure 2 As shown, the converter oxygen lance is inserted laterally into the oxygen lance notch 5 and supported on the oxygen lance boss 3. The open end of the oxygen lance notch 5 is preferably flared to facilitate the lateral insertion of the converter oxygen lance into the oxygen lance notch 5. The closed end of the oxygen lance notch 5 located in the oxygen lance boss 3 is semi-circular to facilitate matching with the converter oxygen lance. There are guide grooves 6 on both sides of the closed end of the oxygen lance notch 5. When the converter oxygen lance is supported on the oxygen lance boss 3, the guide plate on the converter oxygen lance is inserted into the guide groove 6, that is, the converter oxygen lance is fixed on the oxygen lance boss 3.

[0027] The insertion boss 2 can also be vertically fixed to the trolley body 1 by welding. The insertion boss 2 is equipped with multiple connectors for connecting the converter oxygen lance to external water and oxygen supply equipment, such as... Figure 4 As shown, it includes a second through hole 11 and a flange 14 snapped onto the second through hole 11. The second through hole 11 is provided on the insertion boss 2. One end of the flange 14 is fixedly connected to the inner insertion pipe 10. The end of the inner insertion pipe 10 is connected to the water inlet pipe, water return pipe and oxygen pipe on the converter oxygen lance in the form of a socket.

[0028] The other end of flange 14 is connected to external water and oxygen supply equipment by bolting in the second through hole 11;

[0029] The flange 14 is provided with a fixing block 13 fixed on the insertion boss 2. The fixing block 13 has an L-shaped cross section to prevent longitudinal movement of the flange 14. A flexible pad 12 is provided between the flange 14 and the fixing block 13 in the axial direction to make flexible contact between the flange 14 and the fixing block 13.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change oxygen lance cart, comprising: The trolley body (1) and the cannula boss (2) and oxygen lance boss (3) fixedly mounted on the trolley body (1); characterized in that: The surface of the trolley body (1) is provided with a groove (7), the groove (7) is connected to the first through hole (9) located at the top of the trolley body (1), and a pulley (8) is rotatably provided in the groove (7); The oxygen lance protrusion (3) is provided with an oxygen lance notch (5) with one end open; the closed end of the oxygen lance notch (5) has guide grooves (6) on both sides. The insertion protrusion (2) is provided with multiple insertion interfaces, each including: a second through hole (11) provided on the insertion protrusion (2) and a flange (14) snapped into the second through hole (11). One end of the flange (14) is fixedly connected to the inner insertion tube (10), and the end of the inner insertion tube (10) is a socket. The flange (14) is provided with a fixing block (13) fixedly mounted on the insertion boss (2) on the outside.

2. The quick-change oxygen lance cart according to claim 1, characterized in that, Multiple guide wheels (4) are rotatably arranged on both sides of the trolley body (1).

3. The quick-change oxygen lance cart according to claim 1, characterized in that, The oxygen lance notch (5) has a trumpet-shaped opening and a semi-circular closed end.

4. The quick-change oxygen lance cart according to claim 1, characterized in that, The fixed block (13) has an L-shaped cross section, and a flexible pad (12) is provided between the flange (14) and the fixed block (13) in the axial direction.

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