Carbon fiber jacket for pounding head of furnace pounding machine

Abstract

The invention relates to a carbon fiber jacket for a pounding head of a furnace pounding machine. The carbon fiber jacket which has the shape matched with that of the pounding head of the furnace pounding machine is sleeved outside the pounding head; one end of the jacket has an enclosed structure, and the other end of the jacket has an open structure; the pounding head of the furnace pounding machine is a furnace pounding stick; the carbon fiber jacket which is matched with the pounding head has a hollow cylindrical shape; the pounding head is a material reversing shovel which consists of a shovel body and a shovel handle; the carbon fiber jacket which is matched with the pounding head consists of a shovel body jacket and a shovel handle jacket; and the shovel body jacket and the shovel handle jacket are sleeved on the shovel body and the shovel handle of the material reversing shovel. The carbon fiber jacket disclosed by the invention has the advantages of simple manufacturing process, low cost and capability of avoiding iron elements brought by the furnace pounding stick and the material reversing shovel, greatly lowering the iron content of silicon and enhancing use effects ofthe furnace pounding stick and the material reversing shovel. Tests show that after the carbon fiber jacket is used on the furnace pounding stick, iron element content can be lowered from about 600 ppWt in an all petroleum coke process to below 200 ppWt in a metal silicon producing process.

Description

Technical field: [0001] The invention relates to a technical equipment for silicon purification, in particular to a carbon fiber jacket used for a stamping head of a furnace stamping machine. Background technique: [0002] In the process of producing metal silicon, metal silicon is obtained through the reduction reaction of silicon dioxide and carbon at high temperature. Silica is crushed to a suitable size. The carbon reducing agent can be coke, charcoal, clean coal and petroleum coke. They are evenly mixed in a certain proportion and put into the submerged arc furnace. Electric arc is generated to melt the silica. It undergoes a reduction reaction with carbon at high temperature to obtain metallic silicon. However, during the reaction process of silicon dioxide and carbon in the submerged arc furnace, the surface of the reaction between silicon dioxide and carbon is prone to large agglomeration, which affects the reaction speed of silicon dioxide and carbon in the furnace...

AI Technical Summary

Problems solved by technology

However, the turning shovel and the stamping rod are made of metal iron. When it is pierced and loosened in the submerged arc furnace, the parts in contact with the agglomerated part will cause the loss of the stamping rod at high temperature, and part of the iron metal will enter the metal. In silicon, it not only affects the use effect of the smelter, but also increases the iron content in metal silicon

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