High-temperature burden guiding device between pre-reducing furnace and final-reducing furnace

Abstract

The invention discloses a high temperature furnace material chute device between a pre-reducing furnace and a final reducing furnace. The chute device comprises a material guiding pipeline, wherein the material guiding pipeline is composed of a section of straight pipeline, a section of inclined pipeline and a section of material guiding stub pipe, the lower end of the straight pipeline is communicated with the inclined pipeline, the connector at the lower part of inclined pipeline is communicated with the material guiding stub pipe, a layer of ceramic castable, which is high temperature resistant and wear resistant, is compounded on the inner wall of the material guiding pipeline, and a furnace material damping device is arranged on the cross part of the straight pipeline and the inclined pipeline. The chute device can solve the problems that the inner lining is not wear resistant, the chute device is easy to be deformed and the inspection and the maintenance are inconvenient.

Description

technical field [0001] The invention relates to a high-temperature furnace material guide device, in particular to a high-temperature furnace material guide device between a pure oxygen non-blast furnace ironmaking preliminary furnace and a final reduction furnace. Background technique [0002] In the pure oxygen non-blast furnace ironmaking (POSRI) process, the pellets are reduced into hot sponge iron (~850°C) in the pre-reduction furnace after being reduced by high-temperature gas. After being discharged by the spiral discharger at the bottom of the pre-reduction furnace, The high-temperature charge guide device enters the final reduction furnace. [0003] As the hot sponge iron passes through the material guide device continuously, it is very easy to cause wear to the lining of the material guide device, especially at the turning point of the inclined pipeline, that is, the blanking point of the vertical pipeline and the short inlet pipe of the final reduction furnace. C...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a high-temperature furnace material guide device between the pre-reduction furnace and the final reduction furnace, which can solve the problem of lining resistance and wear resistance, and prevent high-temperature gas stringing in the pre-reduction furnace. Gas and material guide devices are prone to deformation and easy to repair and maintain.

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