JPS6033821A - Steel material storing device of heat insulating type - Google Patents

Abstract

PURPOSE:To eliminate the deterioration and deformation of machine parts by preventing heat conduction to drum shafts and flange parts, by interposing a heat insulating material between a drum-body part which receives high temperature heat and the shafts and flange parts of the drum. CONSTITUTION:In a steel material storing device; heat insulating materials 5, 5 are interposed between the contacting parts of a drum-body part 1 and flange parts 2, 2, and also a heat insulating material 6, 6 is incorporated in the thick wall-thickness part of the part 1 in its longitudinal and circumferential directions. Further, a heat insulating cover 10 is proveded so as to cover the whole body of storing device, then the whole outer circumference of the device is covered, and a heat insulating material 12 is sticked to the inside of an outer skin 11. Moreover, plural heat radiating fins 7, 7 are provided to shaft parts 3, 3 in the longitudinal direction of the shafts 3, 3. The insides of shafts 3, 3 are formed into cavities, and a pipe 9 is inserted into them to jet a cooling gas. The cooling gas is jetted to said cavities and also to the internal space of the drum body 1, to cool the inner part of the material 6 incorporated in the drum body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an apparatus for accumulating hot steel materials such as wire rods.

(Prior art) Various steel winding devices using winding drums have been proposed, but these wind up hot steel materials into the final product shape. There was no need to hold the winding device over a long period of time, and no special consideration was given to preventing heat conduction to the shaft portion of the winding device.

Such conventional winding devices are used to wind high-temperature steel from the middle of the rolling line, that is, from the roughing mill or intermediate rolling mill row, and then supply it again to the finishing mill. When holding steel materials for a long time.

There is a problem in that high heat is conducted from the outer peripheral part of the drum, where the liquid is directly applied to the steel material, to the shaft core part through the flange part, and the entire winding device becomes high temperature.

(Purpose of the Invention) The present invention was made with the aim of solving these problems, and by interposing a heat insulating material between the drum body, which is directly exposed to high heat, and the drum shaft and flange, the drum shaft and flange are interposed. This prevents heat conduction to the flange.

(Structure and operation of the invention) Next, the present invention will be explained using the drawings.

FIG. 1 is a sectional view of the device of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. A flange portion 2.2 is fixed on both sides of the drum body 1 in the axial direction, around which a high-temperature steel material is directly wound, and a shaft 3, 3 is attached to the center of the flange portion 2.2.
In a steel storage device having a structure rotatably supported by bearings 4, 4.

A heat insulating material 5 is provided at the contact area between the drum body 1 and the flange parts 2, 2.
, 5 are interposed. The heat insulating materials 5, 5 are interposed over as much of the entire surface as possible at the contact surfaces between the drum body 1 and the flange parts 2, 2. That is, in order to maintain strength at the contact surface between the drum body 1 and the flange portion 2, the heat insulating materials 5, 5 are interposed over the entire surface except for the portion connected with the minimum necessary metal fittings. Also, there is a wall in the thick part of the drum body 1 in its longitudinal direction.

Insulating materials 6, 6 are included in the circumferential direction. In this way, heat conduction from the drum body 1, which is directly wrapped around the high-temperature steel material and becomes extremely hot, is prevented. It is effective to have a structure like this.

That is, the shaft portions 3, 31 are provided with a plurality of radiation fins 7.7 in the length direction of the shaft. Further, the insides of the shaft parts 3, 3 are hollow, and a nozzle 9 is inserted into the hollow, and the cooling gas is ejected from the nozzle 9 through a small hole provided at its tip or around it as necessary. . This cooling gas is ejected not only into the cavities of the shaft parts 3, 3 but also into the internal space of the drum body as shown in the figure. IC and internal insulation material 6,
6. Cool the inner part.

Furthermore, as mentioned above, this accumulator is located in the middle of the rolling line, and after temporarily accumulating hot steel, sends it to the finishing mill at an appropriate timing, so the rolled steel is stored as much as possible. Must be kept at high temperature. Since the hot steel material 8 wound around the drum body ζ dissipates more heat outwardly, a heat insulating cover 10 is provided to cover the entire storage device as a measure to prevent this. The heat insulating cover 10 covers the entire outer periphery of the steel storage device and is constructed by pasting a heat insulating material 2 on the inside of the outer skin 11. As a support means for the heat insulating material 12, a support bar 13 is used to fix the outer skin 1.1f. Further, the steel storage device is rotatable and the heat insulating cover 10 is fixed.

A seal 14 is provided at the contact point between the two. Furthermore, as shown in FIG. 2F, the heat insulating cover 1 is provided with a necessary window 15 in the entrance/exit portion of the hot steel material.

(Effects of the Invention) Since the present invention is configured as described above, when the hot steel material 8 is wound around the drum body 11, heat transfer
2. It prevents the temperature rise of the shaft parts 3 and 3 to prevent deterioration and deformation of each part of the equipment due to heat. 9. It also prevents the outside air from escaping high temperature hot steel material and supplies it to the primary process finishing rolling mill. It is something that maintains a sufficient temperature and hangs.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the apparatus of the present invention, and FIG. ■ = Nidrum part, 2: Flange part, 3: Shaft part. 4: Bearing, 5, 6: Insulating material, 7: Radiation fin, 8: Hot steel material, 9: Cooling knob, 10: Insulating cup <-111:
Outer skin, 12: Heat insulating material, ]3: Support <-, 14: Seal, 15: Window. Patent applicant agent

Claims (1)

[Claims] In a drum-shaped hot steel storage device, a heat insulating material is interposed within the wall thickness of the drum body and between the drum body and the flange, and a heat insulating cover is provided all around the open outer circumference of the drum body. Features: Heat transfer cut-off type steel storage device.