JPS6142900Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shielding device with good sealing performance in converter equipment.

In converter equipment, for the purpose of preventing the leakage of smoke and gas generated during converter operation, and for the purpose of protecting front-of-furnace workers from objects scattered by slopping, spitting, etc. from the converter, A dust collection facility is provided above the converter, and as shown in FIG. 1, the converter 1 is surrounded by a sealed heat-resistant structure 2 and a furnace front shielding plate 3.

As shown in FIGS. 1 and 2, the furnace front shielding plate 3 consists of shielding plates 3a and 3b that can be horizontally moved from side to side, and each shielding plate 3a and 3b is attached to a movable frame body 4a and 4b, respectively. It is supported and opened to the left and right when charging hot metal, scrap, etc. to the converter 1.
Closed after charging.

If the abutting portions of the left and right shielding plates 3a and 3b are made to be on the same plane, the stopping precision of the shielding plates will become difficult, and the gap will increase due to thermal deformation, resulting in incomplete sealing and There was also a risk that protection for workers would be incomplete.

The present invention relates to a seal structure for eliminating such conventional drawbacks, and one embodiment thereof will be described below with reference to FIG. 3. Although the illustrated example shows a shielding device installed in front of the converters, the present invention can also be installed separately or together on the work floor behind the converters.

As shown in FIG. 3, at the abutting portion of the left shielding plate 3a and the right shielding plate 3b, a portion of the left shielding plate 3a and the right shielding plate 3b are overlapped back and forth, and the shielding plates 3a, 3b are overlapped in the front longitudinal direction in the vicinity.
Seal members 5a, 5b each having a T-shaped or L-shaped cross section are provided on the left and right frames 4a, 4b to which the shielding plates 3a, 3b are attached so as to eliminate the gap with the shielding plates 3a, 3b, and parts of the seal members are overlapped front and back. ing.

It should be noted that the shielding plates 3a and 3b may be of any type as long as they can be shielded, but by having a water-cooled structure, thermal deformation due to high heat radiation can be prevented.
It is possible to reduce the interval between the overlapping portions of a and 3b, and to reduce the thermal influence on the seal members 5a and 5b. Further, the method for attaching the seal members 5a, 5b to the frames 4a, 4b is not particularly limited, but in this embodiment, attachment bolts 6 are used to simplify manufacturing and maintenance.

As described above, according to the present invention, by partially overlapping the shielding plates, slopping from the converter can be prevented.
It is possible to completely protect the workers at the front of the furnace from flying objects caused by spitting, etc., and it is possible to achieve very rough stopping accuracy when closing the front shielding device. In addition, by overlapping the sealing member on the front of the shield plate, gas and scattered objects leaking from the overlapped surface of the shield plate can be shielded here, making it possible to completely seal against gas and scattered objects during converter operation. becomes.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the area around the converter, FIG. 2 is a front view of the furnace front shielding device, and FIG. 3 is a cross-sectional enlarged plan view showing an embodiment of the present invention in the furnace front shielding device. 1 is a converter, 2 is a sealed heat-resistant structure, 3 is a furnace front shielding device, 4 is a frame, 5 is a sealing member, and 6 is a bolt.

Claims (1)

[Scope of utility model registration request] In a converter shielding device, which is provided in front of the converter furnace and at least one of the hearth working floor, and in which a shielding plate is divided into left and right parts and is formed so as to be movable in the left and right directions, the abutting surfaces of the shielding plates are Formed so as to overlap front and back, and located in front of the abutting surface of the shielding plate, on the shielding plate itself or on the frame to which the shielding plate is attached,
A converter shielding device characterized in that a member having a T-shaped or L-shaped cross section and the shielding plate are attached so as to overlap each other.