JP2005076096A - Tilting trough - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tilting trough with which the shortening of repairing term and the reduction of repairing cost can be obtained. <P>SOLUTION: In a castable refractory layer 5 in the tilting trough 1, a cross sectional almost U-shaped precast block 7 constituted of a trough bottom portion in contact with molten iron and an inside wall portion is embedded at almost center portion in the length direction. Then, in the precast block 7, a precast block 8 is further embedded at almost center portion easily generating the wearing and damaging by receiving the molten iron. Since the double structure for embedding the precast block 7 and further, the precast block 8 is arranged at almost center portion of the tilting trough 1 easily generating the wearing and the damaging, only the precast block 8 generating the wear and the damage can be replaced and the shortening of the repairing term and the reduction of the repairing cost can be obtained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tilting iron that distributes the hot metal flowing down connected to the hot metal to the left and right by tilting.

  Japanese Patent Application Laid-Open No. 2002-69515 discloses a tilting caster in which a castable refractory layer is formed in an outer shell, and a precast block constituting a bottom portion and an inner wall of a substantially central portion of the castable refractory layer is embedded to improve durability. It is disclosed in the publication. The tilting iron tends to be worn or damaged from the substantially central portion of the bottom contacting the hot metal. If the damage is significant, the precast block is replaced and the tilted anchor is repaired.

However, the tilting rod having the above-described structure requires replacement of the entire precast block even when wear or damage remains in a part of the precast block, which is not economical and requires a long repair period.
JP 2002-69515 A

  The problem to be solved is to shorten the repair work period and reduce the repair cost in the tilted anchor.

  In order to achieve the above object, the tilting rod of the present invention forms a castable refractory layer in the outer shell and receives the molten iron from the molten iron on the bottom portion and the inner wall portion of the substantially central portion of the castable refractory layer. The tilt cast bar with a precast block embedded therein is characterized in that it has a double block structure in which a precast block is embedded in the precast block embedded in the bottom part of the anchor.

  According to the tilting rod of the above configuration, the double block structure in which the precast block is embedded in the precast block embedded in the bottom portion of the substantially central portion of the castable refractory layer, and the central portion of the tilting rod that is likely to be worn or damaged. As a result, it is possible to replace only the precast block portion where wear or damage has occurred, and to shorten the repair period and reduce the repair cost.

  The purpose of shortening the repair work period and reducing the repair cost in the tilted anchor was solved by using a double block structure in which a precast block was embedded in the precast block embedded in the bottom of the anchor.

  Embodiments of the present invention will be described with reference to the drawings. The tilting iron 1 of this embodiment is connected to the hot metal, receives the hot metal discharged from the blast furnace, and tilts to the left and right to be transferred to a ladle, a kneading car, or the like. The outer shell 2 of the tilting rod 1 is provided with inclined portions 4a, 4b that rise from the flat central portion 3 toward the left and right ends in a shallow container shape with both left and right ends open. The tilting rod 1 is formed by forming a castable refractory layer 5 in the outer shell 2 and forming hot metal discharge ports 6a and 6b at both left and right ends.

  The castable refractory layer 5 of the tilting rod 1 is embedded with a precast block 7 having a substantially U-shaped cross section that constitutes a bottom portion and an inner wall portion in contact with the hot metal at a substantially central portion in the length direction. Further, in the precast block 7, a precast block 8 is further embedded in a substantially central portion that is susceptible to wear and damage due to hot metal. These precast blocks 7 and 8 are pre-molded in a dedicated factory and can be densified with a higher degree of filling than on-site construction products, with high strength, high corrosion resistance, and high resistance to erosion. In addition, the quality can be further stabilized.

  As described above, by providing a double structure in which the precast block 8 is further embedded in the precast block 7 at the substantially central portion of the tilting rod 1 that is likely to be worn or damaged, only the precast block 8 that has been worn or damaged is provided. It can be exchanged, and the repair work period can be shortened and the repair cost can be reduced.

  In addition, the double structure part of the said precast block is not limited to one place of a substantially central part, You may provide in multiple places suitably.

It is sectional drawing of a tilting rod. FIG. 2 is an end view taken along line AA in FIG. 1.

Explanation of symbols

1 ... Tilt injection rod 5 ... Castable fireproof layer 7, 8 ... Precaster block

Claims (1)

In the tilting anchor in which a castable refractory layer is formed in the outer shell and the castable refractory layer receiving the molten iron from the molten iron has a precast block embedded in the bottom and inner wall portions of the substantially central portion of the castable refractory layer,
An inclined rod having a double block structure in which a precast block is embedded in the precast block embedded in the bottom portion.

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