JPS6067310A - Cooling floor in iron-manufacturing machine - Google Patents

Abstract

PURPOSE:To prevent a crack of a pipe and damage of a rake by slidably supporting rake elements longitudinally divided into plural parts on a holder, with a spring or cushion material interposed between the rake element and the holder. CONSTITUTION:Rake elements 11 divided into plural parts are supported in a recessed groove of a holder 12 in such a manner as to slide in direction of an arrow, with a spring or a cushion material interposed between the rake element and the recessed groove. In this arrangement, a pitch error between rows of rakes can be corrected and absorbed by moving the rake elements 11 along the groove of the holder 12. A height error between rows of rakes can be easily absorbed by the spring or cushion material 13 interposed between the recessed groove of the holder 12 and the rake elements. Thus, correction and absorption of pitch and height errors between rake elements can be facilitated to prevent a crack in a pipe and damage of the rake.

Description

DETAILED DESCRIPTION OF THE INVENTION Cooling of pipes in iron-making machines is performed using a plurality of rakes (1αX1
hXC? )(id')..., and by supporting, moving, and rotating the pipe (2) on each rake.

In the conventional cooling bed, which is called a walking beam type, pitch errors p and height errors between rows of rakes, as shown in Fig. 6, inevitably occur due to processing accuracy and installation accuracy. In addition, in the upper surface chevron-shaped portion of 1 or 1/-K, since it comes into contact with the high temperature σ frozen ξ plate, JA occurs due to the temperature, resulting in warping δ due to thermal deformation as shown in FIG. This also caused the pitch error p and height error h''.

Such height errors 1) and pitch f errors impede the equal support of the pipe by the rake, causing the pipe to become loose and the rake to be damaged.

The present invention has been proposed to solve these problems, and includes a rake element that is divided into a plurality of pieces in the longitudinal direction and is slidably supported on a holder, and the rake element and the holder are This invention relates to a cooling bed for a steelmaking machine characterized by having a spring or cushion material interposed between the cooling beds.

In the present invention, as described above, the rake, which has conventionally been a long integral structure, is divided into a plurality of rake elements in the longitudinal direction (-5). The pitch error between rows of rakes can be easily corrected and absorbed by moving the rake elements cleanly.Also, by dividing the rake as described above, the amount of warping of the rake due to thermal deformation is significantly reduced. , it is possible to reduce irregularities in pitch and height between rake rows.

Furthermore, the above 1. - Height errors between rake rows can be easily corrected by interposing a spring or cushioning material between the rake element and the holder.

As described above, according to the present invention, pitch errors and height errors between rake rows can be easily corrected and absorbed with a simple configuration, and the warpage of the rake due to thermal deformation is reduced, and the pipes are evenly supported by the rake. This prevents damage to the rake and prevents damage to the pipe.

Embodiments of the present invention shown in the drawings will be described below.

In FIGS. 5 and 6, (11) is a rake element that is divided into v parts in the longitudinal direction of the rake 2, and the holder (11)
It is slidably supported in the direction of the arrow in the groove provided in the holder (121) and the rake element (I
A spring or cushioning material (13) is interposed between the VC and the VC.

Therefore, by moving the rake element (II) along the groove of the Y holder 0z in the direction of the arrow, the pitch error between the rows of rakes can be easily corrected and absorbed. Incidentally, after the pitch error is corrected, the gap SK between the Leniki elements (11) may be reduced. Furthermore, by interposing a spring or cushioning material (13) between the concave groove of the holder (121) and the rake element 01, height errors between the rake rows can be easily corrected and absorbed.

Furthermore, by dividing the rake into a large number of rake elements OB as described above, it is possible to significantly reduce the amount of warpage of the rake due to thermal deformation, and therefore, the pitch and height irregularities between the rake rows are greatly reduced. You can cut it off. For example, the length shown in FIG. The amount of warpage δ of the conventional rake when the conventional rake is replaced with a rake element group with a rake length divided by 7n, and the amount of warpage δ of the conventional rake. When the Yotsu-C dimensionless display is displayed as shown in FIG. 9, a remarkable effect of reducing warping time can be seen.

In this way, the rake element f11) is divided into a plurality of pieces in the longitudinal direction, and the holder (f11) that slidably supports the rake element (f11) is divided into a plurality of pieces in the longitudinal direction.
121 and the rake element (111 and the straightener (131) interposed between the org f13, pitch errors and height errors between the rake rows are reduced, and the pipes are evenly supported. ] ξ It is possible to prevent damage to the rake as well as damage to the eve.

7 and 8 show another embodiment of the present invention 12, between the rake element (11) and between the rake element (11) and the holder (1).
21 and a spring or cushion '4M' (141
f151 The pipe is supported more evenly by the rake by interposing a Y, and has the effect of preventing uneven support due to bending of the eve itself.

The above embodiments of the present invention have been described (1. However, the present invention is of course not limited to such embodiments, and various modifications may be made within the scope of the present invention without departing from the spirit of the present invention. Modification of the design?It's a 5-something thing.

[Brief explanation of the drawing]

Figure 1 is a front view of a cooling bed in a conventional steelmaking machine;
Figure 6 is a plan view of the same, Figure 6 is an explanatory diagram showing the pitch error and height error between the rake rows, Figure 4 is an explanatory diagram showing the warping due to thermal deformation, and Figures 5 and 6 are Embodiment 7 of a cooling bed in a steel manufacturing machine according to the present invention is shown in a front view and a VC vertical cross-sectional side view, and FIGS. 7 and 8 are respectively a front view and a longitudinal cross-sectional view showing other embodiments of the present invention. Side view, No. 91 cutout 1 is a chart showing the effect of reducing the amount of warpage due to thermal deformation of the cooling bed according to the present invention. (11)...Rake element (121-...Po・1g(+
31 f14) II 51...Spring-! , Taha Cushion 4 Iyu Agent Patent Attorney Ko Okamoto Bungai Rona

Claims (1)

[Claims] A steel making machine characterized in that a rake element divided into a plurality of pieces in the longitudinal direction is slidably supported on a holder, and a spring or a cushioning material is interposed between the rake element and the holder. Cooling floor.