A method for separating iron and slag in the smelting process of iron and tungsten outside the furnace

Abstract

The invention discloses a method for separating slag and iron in the tungsten iron smelting process through the outside furnace process. The method includes the following steps that (1) the tungsten iron is naturally cooled for 2 h after ignition reaction is finished in an upper-small and lower-large cylindrical furnace, a furnace sleeve is removed, an iron ingot is clamped out, the slag face is downwards, and the tungsten iron face is upwards and is put into a hanging basket; (2) the hanging basket is put into a 0.05-0.25 mol / L H2SO4 dilute sulfuric acid pool by being supported by a stainlesssteel lifting pier, the lifting pier is adjusted, so that the liquid surface completely covers the dividing line between the iron ingot and the residue until a slag layer to explode into pieces automatically; and (3) the hanging basket is taken out, the tungsten discus is picked out, and then the slag broken blocks are directly poured out. The method adopts a novel water-cooled method to promotethe full fragmentation of the residue, while the tungsten iron still maintains the discus shape, so that the slag and iron can be separated quickly, and the separation effect is remarkable.

Description

technical field [0001] The invention relates to a method for separating slag and iron-tungsten alloy after reduction of iron-tungsten, in particular to a method for separating iron-slag in the smelting process of iron-tungsten outside the furnace. Background technique [0002] At present, a small amount of residue is produced during the smelting process of ferro-tungsten, which is difficult to separate from ferro-tungsten. There is no particularly good separation device in the prior art. Many enterprises still use the old method of directly attracting with magnets or sorting manually , although the effect of separation can be achieved, the labor intensity is relatively high and the efficiency is relatively low. Some enterprises also use water cooling for separation, but the two will be broken at the same time, and the separation effect is relatively poor. Contents of the invention [0003] In order to solve the problems in the above-mentioned background technology, the obj...

AI Technical Summary

Problems solved by technology

[0002] At present, a small amount of residue is produced during the smelting process of ferro-tungsten, which is difficult to separate from ferro-tungsten. There is no particularly good separation device in the prior art. Many enterprises still use the old method of directly attracting with magnets or sorting manually , although the effect of separation can be achieved, the labor intensity is relatively high and the efficiency is relatively low. Some enterprises also use water cooling for separation, but the two will be broken at the same time, and the separation effect is relatively poor.