KR19980042968U - Electric door device of converter - Google Patents

Abstract

The invention devises the converter in the converter process of refining the molten iron into molten steel, 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 that is applied to the operation of insulating converter refractories built in a converter. It is about. In addition, the present invention is supported by the left and right movable weight plate (45, 46), respectively installed and made of a cover of the hambertite and heat-resistant castable high (47a) (47d), and the hinge cover 41, (42) Heat retaining cover (37) (38) that is hingedly mounted by rotatably and the cylinder 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 is provided with a front door device of the converter characterized in that it comprises a).

Description

Electric door device of converter

The present invention is a device that is applied to the operation of measuring the temperature of the molten steel in the converter furnace while the converter is tilted in the converter process for refining the molten iron to molten steel, or to heat the converter refractory built in the converter. In more detail, the present invention relates to an electric furnace door door device which is installed in the electric furnace furnace in order to improve the protection of facilities located around the converter and 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 the molten steel, the converter (1) is tilted to the hearth of the molten steel in the converter furnace. Measure the temperature. This series of temperature measurement operations is referred to as non-temperature temperature measurement. In the furnace temperature measuring operation, when the converter is tilted by the drive 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, during the converter refractory heat retaining operation carried out for the protection of the refractory that is built in the converter furnace, as shown in Figure 2, the furnace cover 5 and the heat retaining device 6 is changed by using a crane (change) Then, it will be kept warm. 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, resulting in inefficiency of self-employment. Brings about. In addition, during the change work in which the cover of the cover 5 and the heat retainer 6 are to be interchanged with each other, a time is delayed due to the need to be transported using a crane, which may cause trouble in other work using the crane. In addition, SLOPPING (phenomena in which molten steel and slag in the furnace is blown out through the converter furnace) during the blow operation in which oxygen is blown into the furnace using the oxygen lance 4 while the converter is established. In case of occurrence, there is no proper covering device, and facility accidents in which the facilities of an electric furnace are fired are generated. 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 refractory insulation of the converter, the work fatigue of the worker is absolutely reduced, the stable management protection of the facility and the safety of the worker are ensured, and The main purpose is to reduce the working time, to improve the efficiency of personnel and work efficiency.

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

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

3 is a view illustrating the components and the coupling state of the furnace door device of the converter according to the present invention;

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

(B) is a perspective view showing the coupling state of the door device and the heat retention device,

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

(D) is the working panel diagram,

4 is a schematic view showing a job application state of the apparatus according to FIG. 3.

Explanation of symbols on the main parts of the drawings

1: CONVERTER 2: Converter Drive Motor

3: exhaust gas duct 4: oxygen lance

5: old cover 6: heating device

7: electric furnace 30: upper guide

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: electric panel

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

In order to achieve the above object, the present invention is supported and installed on the left and right movable weight plates 45 and 46, respectively, and the cover is constructed of hambertite and heat-resistant castables (47a) (47d) and hinges on the cover. (41) (42) and the heat retaining cover (37) and (38), which are rotatably mounted in a rotatable manner, and the rod ends are connected to the heat retaining cover while being fixedly installed on the cover, respectively, to open and close the heat cover. It is provided with the cylinders 35 and 36, and provides the furnace door apparatus of the converter.

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 coupling state of the electric door device of the converter according to an embodiment of the present invention, Figure 4 is a working application state of the device according to FIG. It is a schematic diagram shown.

3 and 4, the furnace front door device of the present embodiment is provided with a hammerite, sliding furnace cover 47a, 47b and heat retaining cover 37, 38 having high heat resistance. The sliding furnace cover 47 is fixed to and supported by the weight plates 46 which are movable left and right along the rails 31 by the wheels 32a-32d, and the upper portion of the furnace cover covers the upper guide 30. Below the weight plate 46 is attached a forward / reverse motor 33a-33d and a lever-type limit 34 which is limited to the stoppers 39 and 40, as shown in more detail in FIG. Two-thirds of the thermal cover 37, which is folded and unfolded by the cylinder 35, is installed on the sliding cover 47a so as 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 Heat retaining burner 43 is attached to the heat retaining cover.

Referring to the operation of the furnace door device of the converter having such a configuration 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 mounted below. The stationary motors 33a-33d are driven to seal the sliding electric cover 47, and the drive 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 retaining 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 in the temperature measurement and sampling work of the converter furnace and the refractory refractory insulation work, improve the stability of the operator, and contribute to the protection of the equipment In order to improve the efficiency of the work due to the stability of converter work, it is necessary 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 cover 47a and 47d, which are supported and installed on the left and right weight plates 45 and 46, respectively, are hinged by hinges 41 and 42 on the cover. Heat retaining cover (37) (38) and rotatably mounted to each other and the rod end is connected to the heat retaining cover while being fixed to each of the furnace cover (35, 36) to open and close the heat cover The front door device of the converter characterized in that it was made.