JPH0637349U - Slab charging device for heating furnace - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a slab charging device with a simple and accurate positioning function. [Structure] The slab charging device 50 into the heating furnace 10 loads the slabs 40 into the walking beam type heating furnace 10 of the hot rolling facility 30 at a predetermined pitch. This device 50
A plurality of beams 51 are arranged at a predetermined interval along the slab charging direction, the beams 51 are integrally connected, and the beams 51 are moved forward / downward by the forward / rearward traveling machine 52 and the elevator 53, and the slab at the tip of the beam 51 is moved. The receiving surface 511 has a step portion 512.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slab charging device for charging a slab as a material to be heated into a walking beam type heating furnace of a hot rolling facility.

[0002]

[Prior art]

 In recent years, a technology has been developed in which a slab cast by a continuous casting facility is supplied to a hot rolling facility while being hot and rolled into a steel strip. A walking beam furnace is installed between the two facilities to reheat the casting slab to the rolling temperature in the middle.

In order to control the interval between the slabs charged in the heating furnace, it is necessary to position the slab once before charging the heating furnace. In the conventional device, the slab conveyed on the table roller was positioned by side guides or suspended by a crane or the like for positioning.

However, in the conventional positioning device, equipment cost is required and accurate positioning is difficult.

[0005]

[Problems to be solved by the device]

 An object of the present invention is to provide a slab charging device with a simple and accurate positioning function.

There is also a pusher type charging method, but this has a high risk that the long stroll cannot be charged and the skid button is damaged.

[0007]

[Means for Solving the Problems]

 The slab charging device for the heating furnace of the present invention is a walking beam type slab charging device for charging slabs into a heating furnace of a hot rolling facility at a predetermined pitch. The beam is connected at a predetermined interval along the above, the beams are integrally connected, and the beam is moved forward and backward by a forward and backward movement and an elevator, and a step is provided on the slab receiving surface at the tip of the beam. The above-mentioned problems are solved by the means.

[0008]

[Action]

 In the slab charging device of the present invention, a step portion is provided on the slab receiving surface at the tip of the beam in order to push out the slab waiting on the roller table.

Before the loading operation of the slab, the shoulder surface of the step portion widths the slab so that the side surface of the slab on the furnace side is aligned with a predetermined reference position.

After the positioning of the slab, the beam once retreats to a predetermined position, rises again from there, scoops the slab from the rollers, and advances in a predetermined stroke to be charged into the heating furnace.

After that, the beam descends and retreats, transferring the slab onto the walking beam.

[0012]

【Example】

 An embodiment of an apparatus for charging a slab into a heating furnace according to the present invention will be described with reference to FIGS.

As shown in FIGS. 3 and 4, the heating furnace slab charging apparatus 50 of the present invention loads the slabs 40 into the walking beam heating furnace 10 at a predetermined pitch.

In this embodiment, as shown in the drawing, the walking beam type heating furnace 10 is arranged between the continuous casting equipment 20 and the continuous hot rolling equipment 30, but the continuous casting equipment 20 is not provided. May be.

The slab 40 is charged into the heating furnace 10 by the charging device 50, heated to a predetermined temperature, and then sent to the continuous hot rolling facility 30.

The main components of the heating furnace 10 include a walking beam 11, a walking beam elevator 12, a walking beam forward / backward traveling machine 13, a furnace body 14, and a loading side door 15.

As shown in FIGS. 1 and 4, the main components of the charging device 50 are made up of a beam 51, a forward / backward drive 52, and an elevator 53.

The slab 40 is scooped from the charging table 60 by the charging device 50, loaded into the heating furnace 10 under operation control, placed on the walking beam 11, and moved to a predetermined position in the heating furnace. It moves while being heated in a heat pattern, and is transferred onto the extraction table 70.

In the charging device 50 of the present invention, a plurality of beams 51 are arranged at predetermined intervals in the slab charging direction, the beams 51 are integrally connected, and the beams 51 are connected by the forward / rearward movement 52 and the elevator 53. Is moved forward and downward, and a step portion 512 is provided on the slab receiving surface 511 at the tip of the beam 51.

Next, the operation of the slab charging device 50 of the present invention will be described with reference to FIG.

First, the slab receiving surface 511 of the beam 51 is inserted under the slab 40 waiting on the roller table 60 (A). At this time, the distance between the lower surface of the slab 40 and the slab receiving surface 511 is about 100-150 mm.

Next, the beam 51 is advanced to a predetermined position. At this time, the shoulder surface of the step portion 512 of the beam 51 performs the width adjustment of the slab 40, and the side surface of the slab on the furnace side is aligned with a predetermined reference position. Preferably, the reference position is the roller end surface.

After the positioning of the slab 40, the beam 51 once retreats to a predetermined position (C), then moves forward with a predetermined stroke and rises again (D), and the slab 40 is scooped up from the roller table 60 and placed in the heating furnace. Charge (E).

Thereafter, the beam 51 moves backward while descending, and the slab 40 is transferred onto the walking beam 11 (F).

[0025]

[Effect of device]

 According to the present invention, it is possible to realize accurate width adjustment of a slab by simply modifying the conventional charging device without newly providing a positioning device.

[Brief description of drawings]

FIG. 1 is a perspective view of a slab charging device of the present invention.

FIG. 2 is an operation explanatory view of the slab charging device of the present invention.

FIG. 3 is a plan view of a continuous production line to which the device of the present invention is applied.

FIG. 4 is a schematic vertical sectional view of the apparatus of the present invention and a heating furnace.

[Explanation of symbols]

10: heating furnace, 20: continuous casting equipment,
30: continuous hot rolling equipment, 40: slab (material to be heated), 50: charging device, 60: charging table, 70: extraction table, 11: walking beam furnace, 14: furnace body, 51:
Beam, 52: forward / backward movement, 53: lift, 511: slab receiving surface, 512: stepped portion.

Claims (1)

[Scope of utility model registration request] 1. A slab charging device for charging slabs in a walking beam type heating furnace of a hot rolling facility at a predetermined pitch, wherein a plurality of beams are arranged at predetermined intervals in the slab charging direction. An apparatus for charging a slab into a heating furnace, characterized in that the beam is integrally connected, and the beam is moved forward and backward by a forward and backward movement and an elevator to provide a stepped portion on a slab receiving surface at the tip of the beam. .