JPH089154Y2 - Charger for high temperature slabs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a charging device for a high temperature slab in hot rolling.

<Prior Art> In charging a high temperature slab in hot rolling, several slabs 1 are carried into a charging station 2 as shown in FIG. 7, and from here, a charging loader 3 shown in FIG. 8 and the like. A method of transporting a slab to the heating furnace front table 5 by the charging support tool is generally known. FIG. 9 shows these schematic diagrams.

<Problems to be solved by the invention> Conventionally, in the slab charging device described above, there is no heat retention method on the charging station at the time of charging the high temperature slab, and the heat contained in the high temperature slab is dissipated to the atmosphere. It was difficult to prevent the temperature drop of the slab.

As a means for solving this problem, as disclosed in Japanese Utility Model Laid-Open No. 64-49305, the slab is covered with a heat insulation cover during stacking, and when moving the slab, a slab suspension punch attached to this cover is used. There is disclosed a device that presses against a slab and moves the slab together with the cover. However, in this device, there is a problem that the pressing operation by the punch is complicated, and the loading slab cannot be loaded into the loading station by the loading loader.

In order to solve the above problems, the present invention provides a heat retaining frame at a charging station, and also uses a charging loader as a lid for the heat retaining frame to prevent the heat contained in the high temperature slab from being contained. The purpose of the present invention is to provide a charging device for a high temperature slab that suppresses the release into the atmosphere as much as possible.

<Means for Solving the Problems> The present invention is a high-temperature slab charging device used for charging a high-temperature slab in a heating furnace in hot rolling, and has four upper and lower side surfaces installed at a charging station. And a heat retaining frame having a notch of an upper opening in a portion corresponding to the tongue grip portion of the charging loader on the opposite two sides, and the heat retaining unit in a standby state at the charging station. A high-temperature slab charging device comprising a heat-resistant charging loader that covers the upper surface of the heat-retaining frame to form a heat-retaining cover, and the heat-retaining frame is provided with two opposing heat-loading devices. The high-temperature slab charging apparatus according to claim 1, wherein at least one of the side surfaces uses a heat retaining frame that is detached and attached by a link mechanism or the like that operates when the slab is placed.

<Operation> According to the present invention, since the heat retention in the charging station and the heat retention by the charging loader can be performed, it is possible to effectively prevent the heat contained in the high temperature slab from being released into the atmosphere.

<Embodiment> FIG. 1 is a schematic view showing an embodiment of the present invention. The charging station 2 has a notch 9 which is formed only on four sides and does not have a top surface and a bottom surface, and which is open at an upper portion in a portion corresponding to the tongue grip portion of the charging loader 3 on two opposing side surfaces in the longitudinal direction. 2 is installed (see FIG. 2), and when the charging loader 3 is on standby, the charging loader 3 having a heat-resistant structure covers the upper surface of the heating frame 6 with a lid. The charging loader 3 and the heat retaining frame 6 form a heat retaining cover 10.

At this time, when the slab is loaded into the loading station 2 from the sideways-carried trolley by the loading loader 3, as shown in FIG.
As shown in FIG. 4, one side surface can be constituted by an elevating side cover 7 which is moved up and down by a link mechanism or the like to be detached.

Although FIG. 4 shows an example in which the opening / closing and attachment / detachment mechanism is provided on only one side surface, this mechanism may be provided on both sides if necessary. Reference numeral 8 in the figure is a slab-mounted detector, which also has a function as a portion acting on the link mechanism.

FIG. 6 shows the movement of the charging loader as the heat retaining lid. Conventional charging loaders are in the standby state at the upper limit of the charging station or on the heating furnace charging table, but in the present invention, the charging loader is placed on the charging station for heat retention. It covers the upper surface of the frame and is used as a heat retention lid for standby. Since the loading loader is used as described above, it has a heat-resistant structure with sufficient heat-proof measures.

In the present invention, since the heat is kept at the charging station when charging the high temperature slab, it is possible to prevent the heat containing the slab from being diffused into the atmosphere as much as possible.

FIG. 5 shows a slab temperature comparison between the conventional charging device and the charging device according to the present invention. It is clear that the present invention can prevent the heat containing of the high temperature slab from being diffused into the atmosphere.

As a result, it was possible to load the slab into the heating furnace at high temperature, and it was possible to reduce the fuel consumption rate of the heating furnace.

<Effect of the Invention> According to the present invention, the heat contained in the high-temperature slab can be significantly prevented from being dissipated into the atmosphere as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of the present invention, FIG. 2 is a perspective view showing a heat retaining frame on a charging station of the present invention, and FIGS. 3 and 4 are heat retaining frames ( 5 is a perspective view showing an application example)
FIG. 6 is a characteristic diagram showing the time-dependent change of the slab surface temperature during charging, FIG. 6 is an explanatory diagram showing the operation of the charging loader according to the present invention, and FIG. 7 is a perspective view showing the charging station. 8th
FIG. 9 is a perspective view showing a charging loader, and FIG. 9 is a schematic explanatory view of charging. 1 ... slab, 2 ... charging station, 3 ... charging loader, 4 ... charging loader girder, 5 ... heating furnace front table, 6 ... heat retaining frame, 7 ... elevation Type side cover, 8 ... Slab mounting detector, 9 ... notch, 10 ...
… Heat retention cover.

Claims (2)

[Scope of utility model registration request] 1. A charging device for a high temperature slab used when charging a high temperature slab in a heating furnace during hot rolling, comprising only four upper and lower side surfaces installed at a charging station and facing each other. A heat retaining frame body having a notch with an upper opening at a portion corresponding to the tongue grip portion of the charging loader on the two sides, and an upper surface portion of the heat retaining frame body standing by at the charging station. A high-temperature slab charging device comprising a heat-resistant charging loader that covers and forms a heat-retaining cover. 2. The heat retaining frame body according to claim 1, wherein at least one side surface of the two opposing side surfaces of the heat retaining frame body is attached and detached by a link mechanism or the like that operates in accordance with the mounting of the slab. High temperature slab charging device.