Refractory pouring material for flash furnace, osmant metallurgy furnace

Abstract

A refractory for imported metallurgical furnace (flash furnace, etc) is prepared from the high-aluminium and corundum particles as aggregate (60-80 wt.%), high-aluminium and corundum powders mixture (10-30), binder (composite aluminate cement, superfine Si-Al powder and sodium tripolyphosphate) (5-10), and alloy fibres as reinforcing component (1-5). Its advantages is high P / C ratio.

Description

(1) Technical field: [0001] The invention belongs to the technology of refractory materials for industrial kilns, and mainly provides a refractory castable for imported flash furnaces and Osmante metallurgical furnaces. (two) background technology: [0002] Jinchuan Company introduced nickel flash furnace from Finland in the early 1990s. It is a Karl Gullie flash furnace type and consists of four parts: reaction tower, sedimentation tank, ascending flue and depletion zone; the depletion zone of the flash furnace is a flash furnace. An important part of the flash furnace, its main function is to deplete the flash furnace slag. However, the top of the furnace in the depleted area is poured with refractory materials selected from abroad, and accidents of large pieces of furnace top collapse and peeling often occur, with an average of 4 to 5 times per year. In the later stage, production will even be shut down for emergency repairs every month, and the loss of millions of dollar...

AI Technical Summary

Problems solved by technology

However, the top of the furnace in the depleted area is poured with refractory materials selected from abroad, and accidents of large pieces of furnace top collapse and peeling often occur, with an average of 4 to 5 times per year. In the later stage, production will even be shut down for emergency repairs every month, and the loss of millions of dollars will be lost each time. Yuan, causing the whole system not to operate normally, the process cannot be stabilized, seriously affecting the production