Advantages of rotary refining furnace

Rotary refining furnace is also called rotary anode furnace. It is mainly used for the refining of liquid blister copper. The operation cycle is generally divided into four stages: feeding, oxidation, reduction, and casting. The product is used for electrolysis of anode copper. Rotary refining furnaces are mainly used in large or very large copper smelters.

The rotary furnace is a fire refining equipment developed in the late 1950s. It is a cylindrical furnace body, equipped with 2~4 air ducts, a furnace mouth and a copper outlet on the furnace body, which can be rotated 360°. Rotate the furnace body to bury the tuyere under the liquid surface for oxidation and reduction operations. The rotary furnace body can be used for feeding, slag discharge and copper discharge, which is easy and flexible to operate.

Rotary kiln has the following advantages:

1) The structure of the furnace body is simple, and the degree of mechanization and automation is high.

2) The capacity of the furnace varies from 100t to 500t, with large processing capacity, good technical and economic indicators, and high labor productivity.

3) Operations such as inserting air pipes and removing slag are canceled, and the consumption of auxiliary materials is reduced.

4) The airtightness of the rotary furnace is good, the heat dissipation loss of the furnace body is small, the fuel consumption is low, the smoke leakage is small, and the environmental sanitation is good.

The difference between rotary refining furnace and stationary refining furnace is that there is no fixed molten pool (slag) line. The erosion of slag and the erosion of molten metal almost involve more than 2/3 of the inner surface of the furnace; The body and the steel shell of the furnace body must be in close contact, and the friction between the masonry and the steel shell must be increased to overcome the rotational torque to maintain the stability of the body. Therefore, under the condition that the surface temperature of the furnace shell allows, the thickness of the masonry should be reduced as much as possible.