KR20040004870A - Forming materials mixing and extracting device for repairing tap hole of blast furnace - Google Patents

Abstract

PURPOSE: An apparatus for kneading and extruding molding material for repairing blast furnace tap hole is provided to reduce working load, improve maintenance of tap hole surface and prevent troubles by automatically kneading and pressing raw materials at the same time to mold a molding material having a shape corresponding to the tap hole surface. CONSTITUTION: The apparatus comprises a kneading tank(10) fixed and supported by a plurality of supporting posts erected on the bottom of cast house; an agitation motor(16) fixed to an upper surface of the kneading tank(10) and connected to the agitating blades(18') to rotationally drive agitating blades(18') capable of agitating molding material(1) charged into the kneading tank(10); a diluted water line(20) connected to one side of the outer circumferential surface of the kneading tank(10); a drum(50) connected to a lower part of the kneading tank(10) by connection pipe(30); an opening and closing cylinder(32) installed on the connection pipe(30) and equipped with an opening and closing plate(34) for opening and closing the opening and closing cylinder(32); an extrusion cylinder(40) fixed to one end of the drum(50) and equipped with an extrusion plate(42) capable of pressing the molding material(1) to the front side of the extrusion cylinder(40); a cutter(62) installed at a side opposite to the extrusion cylinder(40) of the drum(50) to cut the molding material(1) as the cutter(62) is being lowered and lifted; and a molding door(52) arranged at an end part adjacent to the cutter(62) of the drum(50) in such a way that the molding door(52) is opened and closed.

Description

FORMING MATERIALS MIXING AND EXTRACTING DEVICE FOR REPAIRING TAP HOLE OF BLAST FURNACE}

The present invention relates to an apparatus for automatically kneading and extruding a molding material used for repairing the exit of a furnace.

After the charter is completed in the blast furnace, the outlet should be repaired. In the related art, as shown in FIG. 1, after spraying and dispersing the outlet repair molding material (usually AN-210) (1) on the bottom of the column, about 10-20 kg are dispersed. MIXING using a tool such as a shovel with water, and then kneading enough by stepping on the kneaded molding material 1 by stepping on the kneaded molding material 1 using an empty bag containing 2 to 3 workers. At that time, a part was cut with a tool such as the shovel, and then repaired by constructing a circular shape at the exit port 2.

Therefore, not only the delay of work time due to the manual work, but also the work efficiency is remarkably degraded, and the surface management of the exit port is weak, which causes trouble with the equipment such as mud gun or opening machine used to close and open the exit port. Triggered.

The present invention has been made in view of the above-described problems of the prior art, and has been created to solve this problem, and is provided with a separate kneading tank and internally kneaded water and molding materials at an appropriate ratio, and then extruded and discharged to It is an object of the present invention to provide an apparatus for kneading and extruding molding materials for repairing outlets of a smelter capable of reducing the work time and reducing work time as well as uniform outlet surface management.

1 is an exemplary view showing a kneading process of a molding material according to the prior art,

2 is an external perspective view of the device according to the present invention;

3 is a longitudinal cross-sectional view of FIG.

4 is a perspective view of main parts of the device according to the present invention;

Explanation of symbols on the main parts of the drawings

1 .... molding material 2 .... outlet

10 ... kneading tank 16 ... stirring motor

18 '.... Stirring wing 20 ....

30..Connector 32 .... Open / close cylinder

34..Opening and closing board 40 .... Extrusion cylinder

42..Extruder 50..Drum

52 .... Molding door 54 .... Lock

56 .... Hanging Hook 60 .... Cutting Cylinder

62 .... Cutter

The above object of the present invention is a kneading tank fixed by a plurality of support posts installed in the columnar bottom; A stirring motor fixed to an upper surface of the kneading tank and connected to rotationally drive a stirring blade capable of stirring the molding material inserted into the kneading tank; A dilution water line piped to one side of an outer circumferential surface of the kneading tank; A drum communicating with the lower side of the kneading tank and connected by a connecting pipe; An opening and closing cylinder having an opening and closing plate installed on the connection pipe and opening and closing the connection pipe; An extrusion cylinder fixed to one end of the drum and having an extrusion plate capable of pressing forward a molding material; A cutter provided on the side opposite to the extrusion cylinder of the drum and cutting up and down the molding material; It is achieved by providing a molding material kneading and extrusion device for repairing the exit port of the blast furnace characterized in that it comprises a molding door that is arranged to be opened and closed at the cutter adjacent end of the drum.

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

2 is an external perspective view of the device according to the invention, and FIG. 3 is a longitudinal sectional view of FIG. 2.

2 and 3, the lower side is provided with a kneading tank 10 formed in a funnel shape, and the kneading tank 10 is firmly supported by a plurality of support posts 12 mounted on the columnar bottom surface. .

An injection hole 14 is formed at one side of the upper surface of the kneading tank 10, and a stirring motor 16 is installed at the center of the upper surface of the kneading tank 10.

The rotating shaft 18 of the stirring motor 16 penetrates the upper surface of the kneading tank 10 and extends downward to the inside thereof, and the stirring blade 18 'is fixed to the end of the rotating shaft 18.

In addition, a dilution water line 20 for supplying dilution water is piped on one side of the outer circumferential surface of the kneading tank 10, and a control valve such as a solenoid valve for adjusting the supply of dilution water on the dilution water line 20. 22 is installed.

The lower end of the kneading tank 10 is piped in communication with the drum 50 by a connecting pipe 30, opening and closing with an opening and closing plate 34 that can open and close it in part of the length of the connecting pipe 30. The cylinder 32 is installed.

An extrusion cylinder 40 is fixed to the rear end of the drum 50, and an extrusion plate 42 is attached to the cylinder rod of the extrusion cylinder 40, and the extrusion plate 42 is installed inside the drum 50. Then, the drum 50 is moved forward and backward in the longitudinal direction.

At the tip of the drum 50, the molding door 52 as shown in FIG. 4 is rotatably installed to be opened and closed, and the molding door 52 has a shape that can form a surface of a tap hole and its outer circumference. A part is hinged and fixed to the drum 50, and a fastener 54 is provided on an opposite side thereof so as to be able to engage and lock the fixed hook 56 fixed to the outer circumferential surface of the drum 50.

In particular, a cutter 62 is provided on the adjacent drum 50 of the molding door 52 to cut the molding material 1 which is operated in the vertical direction and flows therein.

The cutter 62 is fixed on the cylinder rod of the cutting cylinder 60, the cutting cylinder 60 is firmly fixed to a portion of the outer peripheral surface of the kneading tank 10 by a fixing member.

The apparatus of the present invention having such a configuration is operated as follows.

First, the injection molding material for repair 1 is injected into the kneading tank 10 by a predetermined amount through the inlet 14 of the kneading tank 10, and then the control valve 22 is operated to supply an appropriate amount of dilution water. do.

When the supply of dilution water is completed, the stirring motor 16 is operated to rotate the stirring blade 18 'so that the molding material 1 and the dilution water are sufficiently kneaded (mixed).

When the kneading is completed, by operating the opening and closing cylinder 32 to open the opening and closing plate 34, the kneaded molding material 1 is transported downward through the connecting pipe 30 and accumulated in the drum 50.

When the transfer of the molding material 1 is completed, the extrusion cylinder 40 is moved forward while the molding door 52 is firmly fixed so that the extrusion plate 42 presses the molding material 1 toward the molding door 52. While being extrudable.

The pressurized molding material 1 is pressed into a shape suitable for the exit port inside the molding door 52, and then the cutting cylinder 60 is lowered to partially compress the molding material 1 pressed through the cutter 62. Will cut.

When the cutting is completed, the extrusion cylinder 40 is retracted and the clamping rod 54 is released from the fixing hanger 56, and the molding door 52 is rotated and opened. The cutting and molding molded member 1 falls. Will be.

The dropped molding material 1 is immediately installed on the exit port surface to perform repair work.

As described in detail above, according to the present invention, the molding material is automatically kneaded and simultaneously compressed and molded into a molding material having a shape corresponding to the exit port surface, thereby reducing work load, improving the exit port management property, and preventing equipment troubles. Provide a significant effect.

Claims (3)

A kneading tank 10 fixedly supported by a plurality of support posts 12 mounted on the columnar bottom; A stirring motor 16 fixed to an upper surface of the kneading tank 10 and connected to rotationally drive a stirring blade 18 'capable of stirring the molding material 1 loaded therein; A dilution water line 20 piped to one side of an outer circumferential surface of the kneading tank 10; A drum 50 disposed in communication by the kneading tank 10 and the connection pipe 30; An opening / closing cylinder (32) provided on the connecting pipe (30) and having an opening / closing plate (34) for opening and closing it; An extrusion cylinder (40) fixed to one end of the drum (50) and having an extrusion plate (42) capable of pressing the molding material forward; A cutter (62) provided at an opposite side of the extrusion cylinder (40) of the drum (50) and cutting the molding material (1) while being raised and lowered; Molding material kneading and extrusion apparatus for repairing the exit port of the blast furnace characterized in that it comprises a molding door 52 which is disposed so as to be opened and closed at the end of the cutter (62) adjacent side of the drum (50). The method of claim 1, The molding door 52 is a kneading and extrusion apparatus for repairing the exit port of the furnace, characterized in that formed in a shape corresponding to the exit port surface. The method according to claim 1 or 2, The molded door 52 has a peripheral portion thereof is hinged to a portion of the outer peripheral surface of the drum 50, The hinged opposite side edge is provided with a rotatable fastener 54, A portion of the outer peripheral surface of the drum 50, the fixing hook (56) is provided with a fixing hook (56) is coupled to the clamping and unlocking so as to fix the release port of the furnace, characterized in that the kneading and extrusion apparatus.