KR20040010881A - Adjustable moving car for loading ladle - Google Patents

Abstract

PURPOSE: A variable transfer car for mounting ladle is provided to prevent damage of mechanical chamber of the transfer car due to scattering of slag or molten steel caused during tapping of molten steel whose blowing is completed in converter. CONSTITUTION: The variable transfer car for mounting ladle comprises a pair of operating cylinders(30) fixed to both sides of one surface of body(22) movable along rails; moving stands(40) which are fixed to respective end parts of cylinder rods connected to the operating cylinders(30) and arranged so that the moving stands(40) are moved along the rails, and in which the respective end parts are integrally connected to each other by connection member; ladle resting stands(46) installed on an upper surface of partial length of the moving stands(40) in such a way that the ladle resting stands(46) are elastically operated in up and down directions; and radiation plates comprising a heat blocking member that is interlockingly connected to the ladle resting stands(46) and blocks high temperature transferred to the side of the rails.

Description

Adjustable water cart for mounting molten steel ladle {ADJUSTABLE MOVING CAR FOR LOADING LADLE}

The present invention relates to a trolley carrying a ladle for taking molten steel, and more particularly, a molten steel improved to prevent damage to the machine room caused by slag or molten steel splashing caused when the molten steel is pulled out of the converter. It is related with the variable type trolley for the field mounting.

In general, molten steel that has been blown in the converter is pulled out to work in the secondary process, and is taken to the molten ladles and then transferred to the subsequent process by the water cart.

Figure 1 shows such a tapping process of the molten steel, when the drilling is completed and reaches the starting point of the molten steel after the molten steel ladle (3) is mounted on the lower portion of the converter (1) after the converter ( 1) tilts the molten steel to the molten steel ladle (3).

At this time, some of the slag and molten steel pouring from the outlet 2 of the converter 1 is poured into the upper part of the machine room 5 of the water cart 4 to cause damage to the drive device inside the machine room due to high heat, as well as the machine room ( 5) As the slag and molten steel poured on the upper part are fixed, it forms 8 now and causes interference with surrounding facilities when the trolley bogie 4 moves for the subsequent process, and also hinders the installation work of the molten steel ladle 3 This will cause work delay.

Conventionally, in order to solve such a problem, the operation of removing the stuck current 8 after lifting the cover of the machine room 5 by using a means such as a crane was performed in parallel.

Therefore, the productivity is greatly reduced due to excessive demand for work time due to the tapping work, and since the work is carried out in the hot state of a large heavy load, there are many factors that pose a risk to the safety of the worker.

The present invention has been made in view of the above-described problems of the prior art as described above, and is designed to solve this problem. The purpose of the present invention is to provide a variable water cart for mounting molten steel for preventing the damage caused by scattering by allowing the machine room of the trolley to escape from the scattering width and to easily remove the current stuck after scattering. There is this.

1 is a schematic cross-sectional view showing a water cart used when the molten steel tap according to the prior art,

Figure 2 is a schematic plan and front schematic view of the water cart according to the present invention,

Figure 3 is a schematic side cross-sectional view and perspective view of the water cart according to the invention,

4 is a partial plan view showing a heat sink installation structure of the water-loading trolley according to the present invention;

5 is an installation state of the heat sink constituting the present invention water cart,

Figure 6a, b is a state diagram used in the present invention water cart.

Explanation of symbols on the main parts of the drawings

1 .... electric converters ...

10 ... rail 14.14

20..Trainer 22 .... Body

30 .... Operating cylinder 32 .... Cylinder rod

40 .... moving table 42 .... outer case

44..Inner Case 46 .... Laddle Mount

50 .... heat sink 52 .... air tube

54..Air jet

The above object of the present invention,

A pair of operation cylinders fixed to both sides of one side of the body movable along the rail;

A moving table fixed to each end of the cylinder rod coupled to the working cylinder and movably disposed along the rail, the ends being integrally connected to each other by connection;

A ladle seating stand provided on an upper surface of a part of the length of the movable table in an elastic operation in a vertical direction;

It is achieved by providing a variable steel cart for mounting a molten steel ladle, characterized in that it comprises a heat sink made of a heat shield member which is connected to be interlocked with the ladle seat and can block the high heat transmitted to the rail side.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a schematic plan and front schematic view of the water cart according to the present invention, Figure 3 is a schematic side cross-sectional view and perspective view of the water cart according to the present invention.

According to FIG. 2 and FIG. 3, the receiving cart 20 is seated on the rail 10 arranged to the converter side.

The water cart 20 is provided with a body 22, a machine room 24 is provided in the body 22, a pair of working cylinders 30 are fixed to both sides of one side of the body 22, The cylinder rod 32 of the operation cylinder 30 is disposed to extend forward and the movable table 40 is fixed to the end thereof.

A power supply cable 12 is disposed at one side of the body 22, and wheels (not shown) are disposed at each lower end of the movable table 40 to be easily moved along the rail 10. do.

In addition, each movable table 40 is configured so that the connecting rod 16 is formed on the surface facing each other to form a body.

At the rear end of the movable table 40, that is, the end portion facing the working cylinder 30 side, an outer case 42 having a predetermined length is formed, and a shape corresponding to the inside of the outer case 42 is formed. The inner case 44 having a small diameter is provided to be withdrawable.

One end of the inner case 42 is fixed to the body 22.

Therefore, the outer case 42 is brought in and out in the form of wrapping the inner case 42 in accordance with the forward and backward operation of the operation cylinder (30).

These inner and outer cases 42 and 44 preferably have a rectangular shape.

In addition, the water-carrying trolley 20 of the present invention forms an empty hollow portion 14 except for a central portion thereof to which the body 22 and the moving table 40 are connected.

On the other hand, the ladle seat 46 is provided on the upper surface of the central length of the movable table 40, the ladle seat 46 is provided with a heat sink 50, the lower end of the heat sink 50 is an external air supply source An air pipe 52 connected to the air pipe 52 is provided, and a plurality of air injection holes 54 are formed.

4 and 5 show the installation relationship of the ladle seat 46, the heat sink 50, and the air pipe 52 in detail, according to the drawing the upper end of the heat sink 50 is fixed to the connecting plate 49 The connecting plate 49 is fixed to the top surface of the ladle seat 46 by the fixing pin 47 or welding.

The ladle seat 46 is a guide post 46a fixed to the upper surface of the outer case 42, a guide cylinder 46b provided so as not to be detached while being disposed to be liftable and lowered to the guide post 46a. The guide cylinder 46b and the elastic spring 46c wound up and disposed outside the guide post 46a, and the upper end of the guide cylinder 46b, as described above, the connecting plate 49 and the fixing pin 47 or welding and In the same way, they are firmly fixed to each other.

At this time, the raising and lowering width of the guide cylinder 46b may be within a range such that the lower end of the heat sink 50 does not touch the bottom surface.

In addition, the lower end of the heat sink 50, the air pipe 52 is piped in the width direction, the air pipe 52 is formed with a plurality of air injection port 54 along the longitudinal direction.

When described with reference to the above-described drawings and Figures 6a, b the operating relationship of the present invention made of this configuration as follows.

When the molten steel ladle 3 is seated on the ladle seat 46 to take molten steel, the elastic spring 46c is suppressed by the weight of the molten steel ladle 3 and the guide cylinder 46b guides the post 46a. Descends.

At the same time, the heat sink 50 connected to the guide cylinder 46b is also lowered, and when the guide cylinder 46b is lowered to the bottom dead center, a valve (not shown) is automatically opened and high pressure air is directed to the air pipe 52 side. Will be supplied.

Therefore, the high pressure sprayed air through the heat sink 50 and the air injection port 54 protects the rail 10 and the outer case 42 from high heat.

When the seating of the molten steel ladle (3) is completed, the operation cylinder 30 is moved forward to move the movable table 40 to the converter (1) side.

When the molten steel ladle (3) moved simultaneously with the moving table (40) is located directly below the exit port (2) of the converter (1), the operation of the operation cylinder (30) is stopped and the converter (1) is tilted to melt the molten steel. You will go to class.

The slag and molten steel scattered during the molten steel is dropped to the body 22 side while drawing a parabolic as in the prior art, but in the present invention, the slag and molten steel that is scattered falls directly to the bottom surface.

Therefore, the problem that the machinery which is now accumulated in the body 22 or installed inside the body 22 by the high temperature is degraded or damaged by the high temperature is greatly reduced.

When the tapping is completed, the operation cylinder 30, which has been moved forward, is returned, and then, the driving cart is driven to transfer the molten steel ladle 3 to a subsequent process.

As described in detail above, the teaching cart of the present invention provides the following effects.

First, since some of the slag and molten steel that is scattered when the molten steel is pulled out of the converter fall directly to the floor surface, the life of the steel cart is extended because it does not directly affect the steel cart.

Second, it is possible to easily remove the current caused by the sticking of the slag and molten steel that is scattered.

Third, the molten steel work of the converter smoothly contributes to productivity.

Claims (3)

A pair of operation cylinders 30 fixed to both sides of one side of the body 22 movable along the rail 10; Movable table 40 fixed to each end of the cylinder rod 32 coupled to the working cylinder 30 and movably disposed along the rail 10, and each end integrally connected to each other by a connecting member 16. )Wow; And ladle seating 46 is provided with a resilient operation in the vertical direction on the upper surface portion of the length of the movable table 40; Steel ladle mounting variable type, characterized in that it comprises a heat sink 50 made of a heat shield member that is connected to be interlocked with the ladle seat 46 and can block the high heat transmitted to the rail 10 side. Course balance. The method of claim 1, The body 22 is fixed to the inner case 44 of the rectangular shape to be built in the form surrounding the cylinder rod 32, The movable platform 40 is a variable lifting cart for mounting a molten steel ladle, characterized in that the outer case 42 of the same shape that is possible to move in and out while wrapping the inner case 44 is provided. The method of claim 1, The heat sink 50 has an air pipe 52 which is supplied with high-pressure air in the width direction at the lower end thereof, and a plurality of air injection holes 54 are formed on the outer circumferential surface of the air pipe 52 along its length direction. A variable tuft truck for mounting a molten steel ladle, characterized in that.