KR20000034403A - Device for inputting check ball by having intelligence function - Google Patents

Abstract

PURPOSE: An input device of check balls by having an intelligence function is provided to input check balls accurately to the vortex point when inputting check balls to restrain vortex occurring in molten material in a converter and to block up discharge of slag at the end of steel tapping. CONSTITUTION: A lower placement stand(47) is combined to a forklift and a check ball(17) is hung on a check ball hook of a movement support pole(33) via chains(17a). An operation panel(39) embedded in the forklift is operated and a vortex controller(37) connected to a central processing unit(38) is operated to operate a vortex sensing piece. The vortex sensing piece senses sound waves due to vortex and transmits the sound waves to the central processing unit. A solenoid valve(41) and a motor controller(40) are operated by a program input in the central processing unit. A cylinder(42) and a rotary motor(48) automatically operate and move the movement support pole to place the check ball in a corresponding point. After the operation, a driver of the forklift promptly operates the forklift and lowers feet of the forklift. The chains having the check ball is deposited in the slag and the chains are molten. The check ball is accurately input to the point where vortex is formed. Thereby the vortex occurred by the molten material is removed.

Description

Check ball input device with intelligent function

The present invention relates to a device for putting a check ball in order to suppress the vortex generated in the melt in the converter during the tapping operation in the steelmaking facility, and to prevent the slag discharged at the end of the tapping, more specifically using a forklift The present invention relates to a check ball input device equipped with an intelligent function that detects the occurrence point of the vortex in inserting the check ball so that the check ball can be input to the correct vortex generation point.

In general, the converter, which is a steelmaking facility for refining molten iron with molten steel, performs the tapping operation to discharge the refined molten steel to the tapping ladle 11 through the tapping hole 8, and during this taping work, the vortex is naturally As a result, the slag floating on the upper portion of the molten steel is pulled out along the molten steel 11 together with the molten steel, resulting in deterioration of the molten steel.

FIG. 1 is a schematic view showing a converter, a tapping ladle, and related accessories, which are conventional steelmaking facilities, and the central processing unit 3 by operating the tilt lever 2 of the control panel 1 for turning the converter. ), The electric converter 7 is tilted by the electric current supplied through the tilting motor controller 4 and discharged to the water receiving ladle 11 through the tap hole 8 while the converter 7 is tilted. During the tapping operation, as shown in FIG. 2, a vortex 16 is generated to allow the slag 14 floating on the upper part of the molten steel to flow out through the tap hole 8 together with the molten steel 15. The molten steel tapping on the ladle 11 has a problem that acts as a major factor of the deterioration of the quality of molten steel by generating a gaseous reaction and a double flow reaction by the slag of the non-metal oxide.

Typically, as a part for suppressing the vortex 16 generated during the tapping operation, the check ball 17 is introduced. In the apparatus for inserting the check ball 17, as shown in FIG. 24, an input method of pushing the handle 23 of the support pole 22 provided by the manpower to push the check ball 17 attached to the support pole 22 into the converter 7, as shown in FIG. As described above, a method of injecting the check ball 17 into the forklift 20 is used.

The operation of the two methods are similar, and the method of inserting the check ball into the converter by the check ball input method using the forklift 20 moves the hanger plate 19 using the forklift 20 to move the converter as shown in FIG. 4B. After the check ball 17 inserts the medallin support pole 18 into the furnace, the forklift support feet 20a and 20b are leaned forward by using the lifting device of the forklift 20 so that the chain 17a of the check ball is leaned forward. When deposited in this hot slag 14, the chain 17a melt | dissolved after a predetermined time, and the check ball fell into the melt in the converter furnace.

However, the manual check ball feeder utilizing the above-mentioned manpower or the check ball feeder using the forklift always checks only a constant position in relation to the length of the feeder pole 18 and 22 regardless of whether or not the vortex 18 is generated. As the ball is inserted, the check ball 17 does not properly perform the role of suppressing the vortex and blocking the slag, resulting in deterioration of molten steel in the steel ladles caused by a large amount of slag outflow, and the reaction between the double and the double flow is accelerated. As a result, it was a major factor to reduce the quality of the final product due to the change of molten steel composition. In other words, the introduced checkball does not perform the vortex suppression role properly and becomes useless, and the main problem that causes deterioration of the molten steel quality due to the incorporation of slag is derived.

The present invention has been made to solve such a conventional problem, the object of the vortex generated by detecting the vortices generated on the melt surface in the furnace during the tapping operation to ensure that the check ball is accurately injected to the point where the vortices are generated To quickly dissipate slag into the ladles during the tapping of the converter, thereby improving the quality of the molten steel due to the elimination of quality deterioration factors, and equipped with an intelligent function to maintain the stability of the tapping work. To provide a ball input device.

1 is a perspective view showing the tapping work situation of a general converter

2 is an explanatory diagram showing that vortices are formed in molten steel during tapping by a converter;

3a and 3b is a perspective view showing an example of a check ball feeder according to the prior art

Figures 4a and 4b is a perspective view showing another example of the check ball inserter according to the prior art

Figure 5 is a block diagram showing a check ball input device equipped with an intelligent function according to the present invention

6a and 6b is an overall perspective view of the check ball input device according to the invention and the overall configuration for the check ball input

Explanation of symbols on the main parts of the drawings

7 ... Converters 11 ... Course Ladles

14 ... slag 15 ... molten steel

16 ... vortex 17 ... checkball

20 ... forklift truck 30 ... vortex generation detection means

33 ... support pole 42 ... cylinder

43 ... center shaft pipe 44 ... gear

45 ... bearing 46,47 ... holder

48 ... motor 51 ... rolling roll

52 ... rotary slide

The present invention as a technical means for achieving the above object,

A support pole connected to a forklift, and a support pole mounted horizontally on the mount and hanging a check ball through a chain at a distal end thereof, and injecting a check ball using a forklift into a converter which is tilted in a horizontal state for tapping. In the apparatus,

The central shaft pipe which accommodates the support pole in a horizontal state to be slidably is rotatably mounted to the mounting target to receive rotational force from a motor, and the rear end of the support pole is pivotable in the mounting target with the center shaft tube as the center point. A vortex generation detecting means for detecting a vortex generation point at a distal end of the support pole and controlling the motor and the cylinder based on the input data provided from the vortex generation detection means. By providing a check ball input device equipped with an intelligent function, characterized in that having a control unit.

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

Figure 5 is a block diagram showing a check ball input device equipped with an intelligent function according to the present invention, Figure 6a is a perspective view showing the overall device, the formation point of the vortex generated in the melt in the converter furnace during the converter tapping operation It is composed of an input pole unit having a means for sensing, a moving device unit for allowing the check ball to be located at the input point, and a control unit.

The input pole pole according to the present invention has a flow support pole 33, the cooling air pipe (70a) and the heat-resistant cable (30a) is built in the support pole 33, the first half of the flow support pole 33 Vortex generation detection means 30, for example a wave detection detector is installed, the cooling air blowing nozzle 32 has a configuration in which a plurality of installation outside the detector (31). Of course, the cooling air pipe (70a) is equipped with an automatic valve 70 to control the flow rate and opening and closing.

The moving unit has a lower cradle 47 formed with grooves 47a and 47b into which the feet 20a and 20b of the forklift 20 can be inserted, and an upper cradle 46 above the lower cradle 47. ) Is fixedly attached, and a central shaft pipe 43 is placed on the upper holder 46 so as to slide the flow support pole 33, and the central shaft pipe 43 is an upper holder through the bearing 45. By being rotatably mounted on the 46, the flow support pole 33 can move in the longitudinal direction while rotating about the central axis tube 43. A rotary gear 44 is formed on an outer surface of the central shaft tube 43, and the rotary gear 44 meshes with the gear 49 of the motor 48 mounted on the upper cradle 46, and supports the flow. The end of the pole 33 is connected to the rod 42a of the cylinder 42. The cylinder 42 is fixedly mounted on the rotary base 52, the rotary base 52 has a rotary roll 51 at the bottom, the rotary roll 51 is the central shaft tube 43 is rotated To be able to move along the guide rail (46a) formed on the upper cradle 46 to be the center. Of course, the rotary roll 51 should be configured so as not to be separated from the guide rail 46a, so that the flow support pole 33 is moved from the central shaft pipe 43 as the rod 42a of the cylinder 42 moves forward and backward. It can move in the longitudinal direction.

In addition, a limit switch 50 for detecting that the forklift 20 is coupled to the lower cradle 47 is installed at the lower end of the upper cradle 46.

The control unit includes a vortex generation detection controller 37 capable of receiving a control signal from the vortex generation detection means 30, which vortex generation detection controller 37 receives a signal of the sound wave generation information and sends a signal to the central processing unit 38. And a central processing unit (38) connected to the turning motor controller (40) for driving control of the motor (48) and the solenoid valve (41) for driving control of the cylinder (42). The field panel 39 embedded in the 20 is connected to the central processing unit 38 via the plugs 36a and 36b.

In order to inject the check ball 17 into the converter using the apparatus of the present invention having such a configuration, first, after the lower cradle 47 is coupled to the forklift 20, the check ball hanger of the floating support pole 33 Hanging the check ball 17 through the chain (17a) to the ring (21), and then forklift 20 is advanced to move the check ball 17 is a floating support pole 33 through the converter furnace (7a) It is located above the effective period of generation of the upper vortex of the melt.

Subsequently, by operating the operation panel 39 embedded in the forklift 20 to operate the vortex generation controller 37 connected to the central processing unit 38 to operate the vortex generation detecting means 31, and the vortex generation detecting means. For example, 31 detects sound waves generated while vortex is generated and transmits them to the central processing unit 38, and the solenoid valve 41 and the motor controller 40 in accordance with a program previously inputted to the central processing unit 38. Thus, the cylinder 42 and the swing motor 48 are automatically operated to move the flow support pole 33 so that the check ball 17 is positioned at the corresponding point (i.e., the vortex generation point). Upon completion (preferably using a separate buzzer, etc.), the forklift driver quickly operates the forklift 20 to lean the forklift feet 20a and 20b forward so that the chain 17a that has been hanging the check ball 17 is held. ) Is deposited on the slag so that the chain (17a) By melting Sikkim is to vortex is destroyed by the eddy current generated in the melt In the check ball 17 is exactly formed on the part.

In addition, in order to prevent the vortex generation detecting means 30 from being damaged by high heat, it is preferable to supply cooling air to the portion thereof. For example, the vortex generation detecting means 30 generates sound waves. In the case of detecting the sound wave sensor, it is preferable to allow the sound wave by the injection of the cooling air to be supplied after sensing the vortex generation position so as not to affect the sound wave detection of the sound wave detector, and in utilizing the forklift 20, It is preferable to remove the plug attached to the rear of the forklift when carrying heavy goods, not when the check ball is put.

According to the check ball input device equipped with an intelligent function according to the present invention as described above, the check ball is quickly and accurately input to the point where the vortex is generated by detecting the occurrence point of the vortex generated in the melt of the inside of the furnace during the tapping operation By quickly dissipating the generated vortex, the slag can be minimized into the slabs during the tapping work, thereby improving the quality of molten steel.

Claims (3)

It has a cradle connected to the forklift, and the support pole is mounted horizontally to the cradle and suspended on the check ball 17 via a chain (17a) at the distal end, using a forklift into the converter tilted horizontally for the tapping In the device for inserting the check ball, The central shaft tube 43 which accommodates the support pole 33 in a horizontal state so as to be slidable is rotatably mounted to the mounting object to receive rotational force from the motor 48, and the rear end of the support pole 33 is The central shaft tube 43 is connected to the cylinder 42 provided on the rotating movable table 52 that can be pivoted from the mounting target, and a vortex generation detecting means for detecting a vortex generation point at the distal end of the support pole 33 ( 30) and a control unit for controlling the motor 48 and the cylinder 42 on the basis of the input data provided from the vortex generation detecting means 30. Ball feeder. The method of claim 1, The vortex generation detecting means 30 is a check ball input device with an intelligent function, characterized in that the sound wave detector for detecting the vortex generation point as the sound wave generated during vortex generation. The method of claim 1, Check ball input device equipped with an intelligent function, characterized in that the cooling medium is circulated to the inside of the support pole (33) equipped with the vortex generation detecting means (30).