Auxiliary support for aligning and baking plug rod for pouring steel ladle

Abstract

The utility model provides an auxiliary support for aligning and baking a plug rod for pouring a steel ladle, which comprises a rack, a first upright post and a second upright post are arranged on the rack, and a cantilever is rotationally arranged on the first upright post; two ends of the cantilever are respectively a hinged end and a mounting end, and the cantilever is rotationally mounted at the upper end of the first upright post through the hinged end; a groove used for being matched with the second stand column is formed in the mounting end; the cantilever has an opening position and a locking position in the rotating process; at the opening position, the groove is separated from the second upright post; at the locking position, the second stand column penetrates through the groove, and the groove is in locking fit with the second stand column; and the cantilever is switched to the opening position or the locking position by rotating the cantilever. The plug rod is limited through the rack, the cantilever, the first stand column and the second stand column, the position of the plug rod is kept fixed, the plug rod is prevented from shaking, collision of the plug rod is reduced, and reliability is improved.

Description

Technical Field

[0001] The utility model relates to a steelmaking auxiliary machine, in particular to an auxiliary bracket for aligning and baking a plug rod of a pouring ladle. Background Art

[0002] In metallurgical engineering, the stopper rod, also known as "stopper" or "ceramic stopper rod", is a refractory rod installed in the ladle that controls the opening and closing of the water inlet and the flow rate of molten steel by lifting and displacing. It consists of a rod core, sleeve bricks and stopper bricks.

[0003] The plug rod is a hollow refractory rod. The hollow part of the plug rod is used to install the rod core. The sleeve brick is inserted into the rod core, and the plug head brick is installed at the bottom of the rod core. The sleeve bricks are bonded and fixed with refractory adhesive, and the refractory adhesive can be fastened and connected to the various parts of the plug rod by baking.

[0004] The ladle is used to receive molten steel from the electric arc furnace and to refine it in the ladle; the ladle and the plug rod are aligned before use to improve the alignment of the plug rod and the nozzle, ensuring that the plug rod can accurately control the flow of molten steel at the nozzle. After the ladle and the plug rod are aligned, they are baked so that the refractory materials of the ladle and the plug rod are preheated, thereby preventing the refractory materials of the ladle and the plug rod from contacting the molten steel at a low temperature and being heated unevenly, resulting in cracking. Preheating the refractory materials can increase their service life. When baking the plug rod, the plug rod needs to be hoisted to the pit-type baking furnace by a crane for baking. When baking the ladle, the ladle needs to be hoisted to the ladle baking device by a crane for baking.

[0005] In some enterprises, LF refining furnaces are installed in electric arc furnace workshops to improve molten steel quality and production efficiency. However, due to factors such as safety and interference between equipment, only one overhead crane is installed.

[0006] When equipped with one overhead crane, the efficiency of producing steel using the original working process is low and the temperature of the arc furnace will be wasted. However, adding an overhead crane will increase the equipment cost, and the comprehensive utilization efficiency is not high, resulting in a certain degree of waste of equipment. Later, the working process was improved, and the production efficiency was still improved and the production cost was reduced without adding a new overhead crane.

[0007] The original working process is as follows: 1. The first batch of steel from the electric arc furnace is powered on for steelmaking, and at the same time, the No. 1 ladle and the No. 1 stopper rod are aligned; 2. After the No. 1 ladle and the No. 1 stopper rod are aligned and qualified, the No. 1 ladle is sent to the ladle baking station by the overhead crane for baking, and the No. 1 stopper rod enters the pit furnace for baking; 3. After the No. 1 electric arc furnace is powered on for 2.5-3.5 hours, molten steel is discharged into the No. 1 ladle; 4. The No. 1 ladle is lifted by the overhead crane to refine the molten steel for about 0.5 hours; 5. The crane hoists the No. 1 ladle for pouring, and the pouring time lasts for 0.5-1 hour; 6. The second furnace of steel is powered on, and the No. 2 ladle and the No. 2 plug rod are aligned; 7. After the No. 2 ladle and the No. 2 plug rod are aligned, the No. 2 ladle is sent to bake by the crane, and the No. 2 plug rod enters the pit furnace for baking; then the No. 2 ladle and the No. 2 plug rod are cycled through steps 3, 4, 5 and 6, and the smelting and pouring process of the No. 3, 4, 5... furnace steel is carried out in sequence. When performing steps 4 and 5, because there is only one crane, the arc furnace will wait for the No. 1 ladle of the first furnace steel to be refined and poured for 1-1.5 hours before the No. 2 ladle and the No. 2 plug rod can be sent to bake by the crane; when the No. 2 ladle of the second furnace steel is refined and poured, the third furnace steel will also wait for 1-1.5 hours. This causes the heat energy of the arc furnace body to be wasted, resulting in increased production costs and low production efficiency.

[0008] The improved working process can avoid the waste of heat energy of the electric arc furnace body and improve the production efficiency. The improved process is: a. Align the No. 2 ladle and the No. 2 plug rod; b. After the No. 2 ladle and the No. 2 plug rod are aligned, the No. 2 ladle is adjusted back to its original position by the overhead crane to wait for baking, and then the No. 2 plug rod is placed on the baking pre-delivery equipment by the overhead crane. The No. 2 plug rod can be placed on the baking pre-delivery equipment, and the No. 2 plug rod can be placed next to the pit baking furnace to wait, and the No. 2 plug rod can be placed in the pit baking furnace when the operating conditions are ripe. In the baking furnace; c. Align the No. 1 ladle and the No. 1 stopper rod; d. After the No. 1 ladle and the No. 1 stopper rod are aligned and qualified, the No. 1 ladle and the No. 1 stopper rod are hoisted by the overhead crane for baking, and the first steel arc furnace is powered on at the same time; e. When the first steel arc furnace is tapping the No. 1 ladle, the second steel arc furnace is powered on and the No. 2 ladle is hoisted by the overhead crane for baking; f. After the first steel arc furnace has finished tapping, the overhead crane hoists the No. 1 ladle for refining and pouring; g. The No. 2 stopper rod is put into the pit baking furnace by the baking pre-putting equipment for baking.

[0009] Therefore, in order to improve production efficiency and reduce equipment costs, people need to seek a baking pre-delivery equipment that has a lower equipment cost than an overhead crane and is easy to install and maintain to solve the above-mentioned problems. Summary of the invention

[0010] The utility model aims to address the deficiencies of the prior art, thereby providing an auxiliary bracket for aligning and baking a stopper rod for a casting ladle, which has low cost, is convenient to install and maintain, and can improve production efficiency.

[0011] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0012] An auxiliary bracket for aligning and baking a plug rod for a casting ladle, comprising a frame, on which a first column and a second column are provided, a cantilever is rotatably mounted on the first column; the two ends of the cantilever are respectively a hinged end and a mounting end, and the cantilever is horizontally rotatably mounted on the upper end of the first column through the hinged end; a groove for matching the second column is provided on the mounting end; the cantilever has an open position and a locked position during rotation; in the open position, the groove is out of contact with the second column; in the locked position, the second column is penetrated by the groove and the groove is locked and matched with the second column; the cantilever is switched to the open position or the locked position by rotating the cantilever.

[0013] Preferably, the second column is threaded with a first locking nut and a second locking nut for locking the cantilever groove; the first locking nut is located above the second locking nut, and the locking position of the cantilever groove is between the first locking nut and the second locking nut; when the cantilever is located at the locking position, the first locking nut and the second locking nut are rotated to make the first locking nut and the second locking nut approach each other to clamp the cantilever so that the cantilever and the second column are locked as a whole.

[0014] Preferably, a plate body for placing workpieces is disposed on the frame; the plate body is disposed horizontally and the first column and the second column are disposed vertically on the plate body.

[0015] Preferably, the first column and the second column are locked on the plate body by bolts, and the first column and the second column are parallel.

[0016] Preferably, the hinged end between the first column and the cantilever is arranged as a double nut structure, and the hinged end of the cantilever is located in the area between the double nut structures and is constrained by the double nut structure.

[0017] Preferably, a circular arc groove for positioning is provided in the middle of the cantilever.

[0018] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0019] 1. The utility model limits the plug rod by means of the frame, the cantilever, the first column and the second column, so that the position of the plug rod is kept fixed, the plug rod is prevented from shaking, the plug rod collision is reduced, and the reliability is improved.

[0020] 2. The cantilever is locked by the second column and the first locking nut and the second locking nut arranged on the column, thereby fixing the plug rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the main viewing angle in the utility model, and the cantilever in the figure is in a locked position.

[0022] Figure 2 It is a schematic diagram of the structure of the utility model from a side view, in which the cantilever is located in a locked position.

[0023] Figure 3 It is a schematic diagram of the structure of the utility model from a top view, in which the cantilever is in a locked position.

[0024] Figure 4 It is a schematic diagram of the structure of the main viewing angle in the utility model, and the cantilever in the figure is in the open position.

[0025] Figure 5 It is a schematic diagram of the structure of the utility model from a side view, in which the cantilever is in an open position.

[0026] Figure 6 It is a schematic diagram of the structure of the utility model from a top view, in which the cantilever is in an open position.

[0027] In the figure:

[0028] 11. Frame; 12. First column; 13. Second column; 14. Cantilever; 15. Groove. DETAILED DESCRIPTION

[0029] The following is a specific implementation method, combined with Figures 1 to 6 , the technical solution of the utility model is further described in detail.

[0030] An auxiliary support for aligning and baking a stopper rod for a casting ladle comprises a frame 11 on which a first column 12 and a second column 13 are arranged, and a cantilever 14 is rotatably mounted on the first column 12.

[0031] The two ends of the cantilever 14 are a hinged end and a mounting end respectively. The cantilever 14 is mounted on the upper end of the first column 12 by horizontal rotation through the hinged end. A groove 15 for matching the second column 13 is provided on the mounting end.

[0032] The cantilever 14 has an open position and a locked position during the rotation process; in the open position, the groove 15 is out of contact with the second column 13; in the locked position, the second column 13 is inserted into the groove 15 and the groove 15 is locked with the second column 13; the cantilever 14 is switched to the open position or the locked position by rotating the cantilever 14.

[0033] Furthermore, the second column 13 is threadedly equipped with a first locking nut and a second locking nut for locking the groove 15 of the cantilever 14; the first locking nut is located above the second locking nut; when the cantilever 14 is in the locked position, the first locking nut and the second locking nut are rotated to make the first locking nut and the second locking nut approach each other to clamp the cantilever 14 so that the cantilever 14 and the second column 13 are locked as a whole.

[0034] Likewise, the hinged end between the first column and the cantilever is configured as a double nut structure having the same structure as the second column, and the hinged end of the cantilever is located in the area between the double nut structures and is constrained by the double nut structure.

[0035] A plate body for placing workpieces is disposed on the frame 11 ; the plate body is disposed horizontally and the first column 12 and the second column 13 are disposed vertically on the plate body.

[0036] The plug rod has a clamping structure, which is convenient for clamping the plug rod. The clamping structure of the plug rod is an arm-shaped structure, which is placed on the plate body and located between the first column 12 and the second column 13.

[0037] The first column 12 and the second column 13 are locked on the plate body by bolts. Specifically, a screw hole or a through hole is opened on the plate body, and the first column and the second column are installed in the screw hole or the through hole and fixed by bolts. The first column 12 and the second column 13 are parallel.

[0038] A circular arc groove for positioning is arranged in the middle of the cantilever.

[0039] For ease of understanding, the use process of the present utility model is described in detail below.

[0040] Initially, the cantilever 14 is located at the locking position, and the first locking nut and the second locking nut are rotated to move the first locking nut and the second locking nut away from each other, so that the cantilever 14 and the second column 13 are unlocked.

[0041] The cantilever 14 is rotated to switch to the open position, and the cantilever 14 is out of contact with the second column 13 .

[0042] The plug rod clamping structure is installed on the plate body, and the plug rod clamping structure is located between the first column 12 and the second column 13 .

[0043] The cantilever 14 is rotated to switch to the locking position, and the groove 15 of the cantilever 14 is matched with the second column 13; the first locking nut and the second locking nut are rotated to make the first locking nut and the second locking nut approach each other and squeeze the cantilever 14, so that the cantilever 14 and the second column 13 are locked as a whole, wherein the arc groove on the cantilever 14 matches the structural shape of the plug rod to achieve positioning. The cantilever 14 limits the upward displacement of the plug rod, the plate body limits the downward displacement of the plug rod, and the first column 12 and the second column 13 limit the horizontal displacement of the plug rod.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. An auxiliary support for aligning and baking the stopper rod of a pouring ladle, It is characterized in that The machine comprises a frame, on which a first column and a second column are arranged, and a cantilever is rotatably mounted on the first column; The two ends of the cantilever are respectively a hinged end and a mounting end, and the cantilever is rotatably mounted on the upper end of the first column through the hinged end; a groove for matching the second column is provided on the mounting end; The cantilever has an open position and a locked position during rotation; in the open position, the groove is out of contact with the second column; in the locked position, the second column is inserted into the groove and the groove is locked with the second column; the cantilever is switched to the open position or the locked position by rotating the cantilever.

2. The auxiliary support for aligning and baking the stopper rod for the pouring ladle according to claim 1, It is characterized in that The cantilever is horizontally rotatably mounted on the upper end of the first column through the hinged end.

3. The auxiliary support for aligning and baking the stopper rod for a pouring ladle according to claim 1 or 2, It is characterized in that The second column is threadedly provided with a first locking nut and a second locking nut for locking the cantilever groove; the first locking nut is located above the second locking nut, and the locking position of the cantilever groove is between the first locking nut and the second locking nut; When the cantilever is located at the locking position, the first locking nut and the second locking nut are rotated to bring the first locking nut and the second locking nut closer to each other to clamp the cantilever so that the cantilever and the second column are locked as a whole.

4. The auxiliary support for aligning and baking the stopper rod for pouring ladle according to claim 3, It is characterized in that A plate body for placing workpieces is arranged on the frame; the plate body is arranged horizontally and the first column and the second column are arranged vertically on the plate body.

5. The auxiliary support for aligning and baking the stopper rod for the pouring ladle according to claim 4, It is characterized in that The first column and the second column are locked on the plate body by bolts, and the first column and the second column are parallel.

6. The auxiliary support for aligning and baking the stopper rod for pouring ladle according to claim 5, It is characterized in that The hinged end of the first column and the cantilever is arranged as a double nut structure, and the hinged end of the cantilever is located in the area between the double nut structures and is constrained by the double nut structures.

7. The auxiliary support for aligning and baking the stopper rod for the pouring ladle according to claim 6, It is characterized in that A circular arc groove for positioning is arranged in the middle of the cantilever.

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