KR200195821Y1 - The front door device of converter - Google Patents

Abstract

The invention devises a converter in a molten steel refining process, and measures the temperature of the molten steel in the converter furnace while the converter is tilted, or measures the temperature of the molten steel in the converter furnace while it is constructed in the converter. The present invention relates to a device applied to the operation of insulating the converter refractory built in the converter, and to the protection of the facilities located near the converter and to the safety of the converter, which is installed in the converter furnace to improve the safety of the workers. It's about. In addition, the present invention is supported by the left and right movable weight plate 45 (46) and installed in the front cover (47a) (47d) made of hambertite and heat-resistant castable, and the hinge cover 41 (42) on the cover Heat retaining cover (37) (38) that is rotatably mounted in a rotatable manner, and the cylinder end (35) (36) that can be opened and closed by the end of the rod is connected to the heat retaining cover while being fixed to each of the furnace cover It provides a furnace door apparatus of the converter characterized in that it comprises a.

Description

Electric door device of converter

The present invention relates to an apparatus applied to the operation in which the temperature of the furnace in the furnace furnace is measured while the furnace is inclined by heating the furnace in the pre-pearl process for refining molten iron or insulating the furnace refractory that is built in the furnace. In more detail, the present invention relates to an electric furnace door device of a converter that is installed in the vicinity of a converter in order to protect the facilities located around the converter and improve the safety of the worker.

In general, in the converter (1) in which oxygen is blown into the molten iron in the converter through the oxide lance (4), and the molten steel is refined into molten steel, the converter (1) is tilted into the furnace to be molten in the furnace. Measure the temperature. This series of temperature measurement is referred to as the temperature measurement. In the furnace temperature measuring operation, when the converter is tilted by the driving motor 2, the furnace cover 5 is positioned so as to be positioned in front of the furnace furnace 7, and the worker enters the inside of the furnace cover 5. Measure and sample. In addition, in the converter refractory heat retaining operation performed for the protection of the refractory which is built in the converter furnace, as shown in FIG. 2, the furnace cover 5 and the heat retaining device 6 are changed using a crane. After doing heat insulation. Therefore, a worker who is working on measuring the temperature of the furnace is likely to be burned by the high heat emitted from the converter furnace.In the case of temperature and sampling, the worker is working in a mental anxiety about the risk of accidents, thereby reducing the inefficiency of the work. Cause. And when the change work to replace the cover of the old cover (5) and the heat retaining device (6), the work is delayed due to the need to transport it by using a crane, the work is carried out because it is to transport the person using a crane Slopping during the blowing operation, which delays time on the bed and causes trouble on other work using the crane, and blows oxygen into the furnace using the oxygen lance 4 while the converter is established ( When molten steel and slag in the converter furnace are ejected out through the converter furnace hole, there is no proper covering device, and the equipment accident of the converter furnace is surely occurred. In addition, in the operation of changing the heat retaining device to keep the converter refractory with the furnace cover, many problems have occurred such as a long time during the aiming operation in which the heat retaining device should be placed in proper contact with the converter furnace.

Therefore, the present invention devised in order to eliminate the above-mentioned problems in the related art, in the apparatus for measuring the temperature in the furnace by heating the converter or heating the converter refractory, the present invention devised a door device equipped with a heating device. By selectively making commercial use in the temperature measurement of the furnace temperature and the refractories of the converter, the work fatigue of the worker is absolutely reduced, and the stable management protection of the facility and the stability of the worker are secured. The main purpose is to reduce the working time, improve the efficiency of personnel and the efficiency of the work.

1 is a perspective view showing a state of a general converter facility.

2 is a perspective view showing a state of the art.

3 is a view showing the components and the coupling state of the electric door device of the converter of the present invention,

(a) is a perspective view of components installed under the rail and weight plate.

(b) is a perspective view which shows the engagement state of a door apparatus and a heat retention apparatus.

(c) is a perspective view showing a state in which the motor and the limit is fastened to the weight plate.

(d) is an operating panel diagram,

4 is a schematic perspective view showing a work application state of the apparatus according to FIG.

* Explanation of symbols for main parts of the drawings

1: CONVERTER 2: Converter Drive Motor

3: flue gas duct 4: oxygen lance

5: old cover 6: heat retaining device

7: converter furnace ball 30: upper guide

31: rail 32,32a-32d: wheel

33,33a-33d: Door operation forward and reverse motor 34: Lever limit

35, 36: cylinder for cover operation 37: left heat insulation cover

38: Right side heat insulation cover with burner 39: Left stopper

40: right stopper 41, 42: hinge

43: thermal burner 44: electrical panel

45,46 weight plate 47, 47a, 47b: cover

In order to achieve the above object, the present invention is fixed and supported on the weight plates 45 and 46, which are movable left and right along the rail 31 by wheels 32a to 32d, respectively, and is provided with a caster and high heat resistance caster. The thermal cover (37) (38) and the thermal cover (37) and (38), which are supported by the blower (47a) and (47b) formed by the blow, and the hinge (41) (42) in which the bearings are embedded, and are mounted to the cover (11) in a hinged manner. Provided is an electric furnace door device of a converter characterized in that the cylinder 35, 36, which is fixed and installed on each of the both cover (47a, 47b) so as to open and close the thermal cover.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. 3 (a) to (d) is a perspective view showing the components and the coupling state of the electric door device of the converter according to an embodiment of the present invention, Figure 4 is a working application of the device according to FIG. It is a schematic diagram which shows the state.

3 and 4, the furnace front door device of the present embodiment is provided with a hammertite, a sliding furnace cover 47a, 47b and a heat retaining cover 37, 38 having high heat resistance. The sliding cover 47 is fixed to the weight plates 45 and 46 which are movable left and right along the rail 31 by the wheels 32a to 32d, and the upper cover 30 covers the upper guide 30. Lose. Under the weight plates 45 and 46, a lever type limit 34, which is limited to the stationary motors 33a to 33d and the stoppers 30 and 40, is attached, and to the cylinder 35 at the left slide cover cover 47a. The two-thirds surface of the heat retaining cover 37 to be folded and unfolded is installed to be supported by the hinge 41 in which the bearing is embedded. Then, the right side sliding cover 47b is installed so as to be supported by the hinge 42 on one-third surface of the thermal cover 38 to be folded and extended by the cylinder 36, the right side cover sliding cover 47b A thermal burner 43 is attached to the thermal cover 37 supported by the thermal insulation cover 37.

The operation of the furnace door device of the converter having the above configuration is as follows.

As shown in FIG. 4, when the door cloth button on the panel 44 is pressed to tilt the converter 1 by the driving motor 2 and measure the temperature of the electric furnace, both weight plates 45 and 46 are disposed below. The mounted stationary motors 33a-33d are driven to seal the sliding cover 47, and the driving motor 33 stops when the lever type limit 34 contacts the stoppers 39 and 40. In this way, the open door on the panel 44 is pressed in the state where the old door is closed to close the left and right heat insulating covers 37 and 38 attached to the sliding sliding covers 47 on both sides. The covers 37 and 38 are brought into contact with each other, and in this state, the heating work is performed.

As described above, according to the converter's furnace door apparatus according to the present invention, by using the furnace door selectively at the side and sampling work in the converter furnace and the refractory refractory heat insulation work, to improve the safety of the operator, and contribute to the protection of equipment In order to improve the work efficiency due to the stability of converter work, it is to maintain stable operation. In addition, since the work for changing the cover between the old cover and the heat retaining cover is reduced, the working time can be shortened and the workforce can be improved, and the practical effect of absolutely reducing the worker's work fatigue can be obtained.

Claims (1)

The front covers 47a and 47b which are fixed and supported on the weight plates 45 and 46 which are movable left and right along the rails 31 by the wheels 32a to 32d, respectively, and are made of hambertite and heat resistant castables. The bearings are supported by the hinges (41) and (42) inherent to each other, and the thermal cover (37) and (38), which are mounted to the furnace cover in a hinged manner, and the both cover (47a) to open and close the thermal cover. The front door apparatus of the converter characterized in that it comprises a cylinder (35, 36) fixed to, respectively installed in the (47b).