Molten steel tank for reducing steel ladle casting residual steel

Abstract

The utility model provides a molten steel tank for reducing steel ladle casting residual steel. The two sides of the top of the molten steel tank are rotationally connected with vertically-fixed hanging columns. A stop block is fixedly mounted on one side of the molten steel tank; a rotary table arm is arranged on one side of the check block, and a shifting and grabbing mechanism is installed on a support arranged at the bottom of the check block. The poking and grabbing mechanism comprises a telescopic rod and a poking claw; the fixed end of the telescopic rod is rotationally connected with the support, and the telescopic end of the telescopic rod is rotationally connected with the end of the pusher dog. The middle part of the pusher dog is rotationally connected with the bracket; an outlet pipe is arranged at an outlet of the molten steel tank; a refractory layer is laid at the bottom of the molten steel tank, and the middle of the refractory layer takes the top end of the outlet pipe as the top surface and is provided with a cone-frustum-shaped confluence hole; the pushing force in the horizontal direction is applied to the check block through the pusher dog, so that the molten steel tank is inclined, and residual molten steel at the bottom of the molten steel tank flows to the outlet pipe; therefore, the device can play a role in improving the quality of finished steel billets.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting technical field, especially a ladle for reducing steel ladle residual steel. BACKGROUND

[0002] At present, in the production process of large-scale continuous casting machine, the molten steel can be poured by opening the discharge port at the bottom of the molten steel ladle; however, at the end of each molten steel pouring, due to the existence of some dead angles in the molten steel ladle, a certain amount of molten steel is left at the bottom of the molten steel ladle and cannot be discharged in time; after being placed for a certain period of time, part of the residual molten steel is oxidized or cooled, and when the new molten steel is poured, it is easy to be mixed; thus, the quantity of finished products is reduced, the production cost is increased, and the quality of finished products is reduced. SUMMARY

[0003] The utility model solves the technical problem in the prior art and provides a molten steel ladle for reducing steel ladle residual steel, which applies a horizontal pushing force to the stop block by using a pawl, so that the molten steel ladle with large weight is limited in movement by the lifting column, the molten steel ladle is inclined, and then the residual molten steel at the bottom of the molten steel ladle is driven to flow to the outlet pipe through the converging hole, and finally discharged from the molten steel ladle; therefore, the utility model can improve the quality of the billet finished products.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme:

[0005] A molten steel ladle for reducing steel ladle residual steel,

[0006] The top of the molten steel ladle is rotatably connected with the vertically fixed lifting column;

[0007] A stop block is fixedly installed on one side of the molten steel ladle, a rotary table arm is arranged on one side of the stop block, a pawl mechanism is installed on the bracket arranged at the bottom of the rotary table arm, the pawl mechanism is used for applying a horizontal pushing force to the stop block, the pawl mechanism comprises a telescopic rod and a pawl, the fixed end of the telescopic rod is rotatably connected with the bracket, the telescopic end is rotatably connected with the end of the pawl, and the middle part of the pawl is rotatably connected with the bracket;

[0008] An outlet pipe is arranged at the outlet of the molten steel ladle, and a refractory layer is arranged at the bottom of the molten steel ladle, wherein the middle part of the refractory layer is provided with a circular truncated cone-shaped converging hole with the top end of the outlet pipe as the top surface.

[0009] The refractory layer is paved with refractory bricks.

[0010] A trapezoidal groove is formed in the side of the pawl close to the stop block.

[0011] The roller is arranged on the corner of the stop block and is used to abut against the stop block when the pawl rotates.

[0012] The rotary table arm comprises a fixed arm and a cantilever arm, and the fixed arm and the cantilever arm are connected in a straight line type.

[0013] The fixed arm is in the shape of an isosceles trapezoid in the vertical direction, and a U-shaped groove is arranged on the fixed end of the fixed arm in the vertical direction.

[0014] The cantilever arm is in the shape of a right-angled trapezoid in the vertical direction.

[0015] The fixed arm comprises a mounting portion and a connecting portion.

[0016] The mounting portion is in the shape of a rectangle in the horizontal direction, and the connecting portion is in the shape of a right-angled trapezoid in the horizontal direction.

[0017] The first bearing is arranged in the interior of the telescopic rod in the vertical direction, and the telescopic rod is rotatably connected with the support through the first pin shaft penetrating through the first bearing and the support.

[0018] The second bearing is arranged in the interior of the pawl in the vertical direction, and the pawl is rotatably connected with the support through the second pin shaft penetrating through the second bearing and the support.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] The steel ladle provided by the utility model can increase the quality of the steel billet product. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model provides a steel ladle and a top view of a rotary table arm.

[0022] Figure 2 The utility model provides a steel ladle and a top view of a pawl mechanism.

[0023] Figure 3 The utility model provides a steel ladle and an elevation view of a rotary table arm.

[0024] BRIEF DESCRIPTION OF DRAWINGS: 1, steel ladle; 2, lifting column; 3, rotary table arm;

[0025] 11, stop block; 12, outlet pipe; 13, refractory layer; 14, converging hole;

[0026] 31, fixed arm; 32, cantilever arm; 33, support;

[0027] 311, mounting portion; 312, connecting portion;

[0028] 41, telescopic rod; 42, pawl. DETAILED DESCRIPTION

[0029] The utility model will be described in further detail below in combination with the drawings and specific preferred embodiments.

[0030] In the description of the utility model, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and "first", "second" and the like do not represent the importance of the parts, so they cannot be understood as limiting the utility model. The specific dimensions used in the embodiment are only used to illustrate the technical scheme and do not limit the protection scope of the utility model.

[0031] The utility model provides a kind of for reducing ladle casting residual steel molten steel ladle 1, the molten steel ladle 1 top two sides are rotatably connected with vertical fixed hoist column 2;The one side of the molten steel ladle 1 is fixedly installed with stopper 11;Rotary table arm 3 is equipped in the one side of the stopper 11, and the bracket 33 arranged in its bottom is installed with pawl mechanism, and the pawl mechanism is used to apply horizontal direction's thrust to the stopper 11;The pawl mechanism includes telescopic rod 41 and pawl 42;The fixed end of the telescopic rod 41 is rotatably connected with the bracket 33, and its telescopic end is rotatably connected with the end of the pawl 42;The middle part of the pawl 42 is rotatably connected with the bracket 33;The outlet of the molten steel ladle 1 is equipped with outlet pipe 12;The bottom of the molten steel ladle 1 is paved with refractory layer 13, wherein the middle part of refractory layer 13 is with the top end of the outlet pipe 12 as top surface, and is equipped with circular truncated cone shaped confluence hole 14.

[0032] Reference Figure 1 , 2And 3, in the production process of large continuous casting machine, by opening the discharge port at the bottom of the ladle 1 can pour molten steel; but, each time in the end of molten steel pouring, due to the existence of some dead angle in the ladle 1, a certain amount of molten steel will be left in the bottom of the ladle 1 and cannot be discharged in time; after a period of time, part of the residual molten steel appears oxidation impurities or cooling, which is easy to mix in when the new molten steel is poured; further, while reducing the finished product, it also increases the production cost and reduces the quality of finished product. The ladle 1 is fixed by the lifting column 2 in the application, because the mass of the ladle 1 is very large, it cannot be directly driven to rotate along the pouring direction by the conventional motor, then the telescopic rod 41 is extended, driving the pawl 42 to rotate along the rotation point of itself and the support 33, then the pawl 42 applies a horizontal pushing force to the stop block 11, so that the ladle 1 with large weight is inclined by 10-20 degrees under the movement limit of the lifting column 2, then the residual molten steel at the bottom of the ladle 1 is shaken and flows to the outlet pipe 12 along the flow hole 14, and finally the residual molten steel in the ladle 1 is completely discharged; thereby, the residual amount of molten steel at the bottom of the ladle 1 is reduced, and the quality of the billet finished product is further improved.

[0033] Referring to Figure 3 The refractory layer 13 in the application is paved with refractory bricks, so that the refractory bricks can be quickly replaced after long-term use and damage.

[0034] Referring to Figure 2 The side of the pawl 42 close to the stop block 11 is provided with a trapezoidal groove, so that when the pawl 42 rotates towards the stop block 11, the trapezoidal groove can hook the stop block 11, improving the efficiency of the pawl 42 pushing the stop block 11.

[0035] Referring to Figure 2 The corner of the pawl 42 close to the stop block 11 is rotatably provided with a roller; the roller is used to abut against the stop block 11 when the pawl 42 rotates; thereby, when the pawl 42 pushes the stop block 11, the friction between the pawl 42 and the stop block 11 can be effectively reduced, improving the efficiency of the pawl 42 pushing the stop block 11.

[0036] Referring to Figure 1The rotary table arm 3 comprises a fixed arm 31 and a cantilever arm 32; the ends of the fixed arm 31 and the cantilever arm 32 are connected in a straight line; wherein the vertical section of the fixed arm 31 is isosceles trapezoidal, and a U-shaped groove is formed in the vertical direction of the fixed end of the fixed arm 31; the vertical section of the cantilever arm 32 is right trapezoidal; the fixed arm 31 comprises a mounting portion 311 and a connecting portion 312; wherein the horizontal section of the mounting portion 311 is rectangular, and the horizontal section of the connecting portion 312 is right trapezoidal; since the vertical section of the fixed arm 31 is isosceles trapezoidal, and the vertical section of the cantilever arm 32 is right trapezoidal, the overall stress structure can be optimized, the gravity center of the rotary table arm 3 is close to the mounting and fixing position of the rotary table arm 3, and then the stability of the overall structure can be effectively improved.

[0037] With reference to Figure 2 The inside of the telescopic rod 41 is provided with a first bearing in the vertical direction, and the telescopic rod 41 is rotationally connected with the support 33 through a first pin shaft penetrating through the first bearing and the support 33; the inside of the pawl 42 is provided with a second bearing in the vertical direction, and the pawl 42 is rotationally connected with the support 33 through a second pin shaft penetrating through the second bearing and the support 33.

[0038] Working principle:

[0039] Firstly, the telescopic rod 41 is extended, and drives the pawl 42 to rotate along the rotation point of the pawl 42 and the support 33, and then the pawl 42 applies a horizontal pushing force to the stop block 11, so that the molten steel tank 1 with large weight is inclined by 10-20 degrees under the movement limitation of the lifting column 2.

[0040] Then, the residual molten steel at the bottom of the molten steel tank 1 is shaken and flows along the flow hole 14 to the outlet pipe 12, and finally completely discharges the molten steel tank 1.

[0041] Finally, the telescopic rod 41 drives the pawl 42 to slowly retract, and the molten steel tank 1 rotates around the connecting point of the lifting column 2 under the action of gravity, and the reset work is completed.

[0042] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A steel ladle (1) for reducing excess steel in a ladle, characterized in that, The top two sides of the molten steel tank (1) are rotatably connected to the vertically fixed hanging columns (2); A stop block (11) is fixedly installed on one side of the steel ladle (1); a rotary table arm (3) is provided on one side of the stop block (11), and a grabbing mechanism is installed on the support (33) at the bottom of the arm. The grabbing mechanism is used to apply a horizontal thrust to the stop block (11); the grabbing mechanism includes a telescopic rod (41) and a claw (42); the fixed end of the telescopic rod (41) is rotatably connected to the support (33), and its telescopic end is rotatably connected to the end of the claw (42); the middle part of the claw (42) is rotatably connected to the support (33). The outlet of the molten steel tank (1) is provided with an outlet pipe (12); the bottom of the molten steel tank (1) is covered with a refractory layer (13), wherein the middle part of the refractory layer (13) is provided with a frustum-shaped confluence hole (14) with the top of the outlet pipe (12) as the top surface.

2. The steel ladle (1) for reducing excess steel in the ladle according to claim 1, characterized in that, The refractory layer (13) is laid with refractory bricks.

3. The steel ladle (1) for reducing excess steel in the ladle according to claim 1, characterized in that, The claw (42) has a trapezoidal groove on the side near the stop (11).

4. The steel ladle (1) for reducing excess steel in the ladle according to claim 3, characterized in that, The pawl (42) is rotatably mounted with a roller near the corner of the stop (11); the roller is used to abut against the stop (11) when the pawl (42) rotates.

5. The molten steel ladle (1) for reducing excess steel in the ladle according to claim 1, characterized in that, The rotary table arm (3) includes a fixed arm (31) and a cantilever (32); the ends of the fixed arm (31) and the cantilever (32) are connected in a straight line. The vertical cross section of the fixed arm (31) is an isosceles trapezoid, and its fixed end is provided with a U-shaped groove along the vertical direction; The vertical cross section of the cantilever (32) is a right trapezoid.

6. The molten steel ladle (1) for reducing excess steel in the ladle according to claim 5, characterized in that, The fixed arm (31) includes a mounting part (311) and a connecting part (312). The horizontal cross-section of the mounting part (311) is rectangular, and the horizontal cross-section of the connecting part (312) is a right trapezoid.

7. The molten steel ladle (1) for reducing excess steel in the ladle according to claim 1, characterized in that, The telescopic rod (41) has a first bearing installed inside in the vertical direction. The telescopic rod (41) is rotatably connected to the bracket (33) by a first pin passing through the first bearing and the bracket (33). The inside of the pawl (42) is equipped with a second bearing in the vertical direction. The pawl (42) is rotatably connected to the bracket (33) by a second pin passing through the second bearing and the bracket (33).

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