Submerged arc furnace top distribution system

Abstract

A submerged arc furnace top distribution system comprises a feed mechanism and a furnace top stock bin arranged linearly. The feed mechanism comprises a feed belt conveyor, a fixed reversible belt conveyor and a running reversible belt conveyor. The running reversible belt conveyor is installed above the furnace top stock bin. The fixed reversible belt conveyor and the running reversible belt conveyor are perpendicularly and fixedly installed. The end of the fixed reversible belt conveyor is arranged on the running reversible belt conveyor. The head of the feed belt conveyor is arranged on the fixed reversible belt conveyor. The submerged arc furnace top distribution system has the advantages that each system can achieve feeding for two submerged arc furnaces, equipment investment is low, the workshop structure is compact, smelting span is small, investment is small, construction is easy, the technology is mature, operation is stable, the fault rate is low, operation environment is good, automatic furnace top distribution can be achieved, the workshop structural design is simple, the manufacturing cost is low, and the workshop structure of the submerged arc furnaces can be optimized.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, in particular to a material distribution system for a rectangular submerged arc furnace roof. Background technique [0002] In the prior art, the furnace roof distribution system of the submerged arc furnace is mostly in the form of an annular feeder or an annular distribution vehicle with an annular arrangement of furnace top storage bins. [0003] The distribution form of the annular distribution vehicle with the furnace top bunker arranged in a ring is traditionally used for small-capacity submerged arc furnaces. Its shortcoming is: this cloth form can't be sealed because of unloading, and dust removal is difficult, and the country has restricted the construction of this kind of small submerged arc furnace. Large-scale submerged arc furnaces basically no longer use this cloth distribution method. [0004] The material distribution form of the ring feeder is composed of a tran...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the cloth form cannot be sealed due to unloading, and it is difficult to remove dust. The country has restricted the construction of such small submerged arc furnaces.

Its disadvantages are: as the diameter of the submerged arc furnace increases, the frame of the annular feeder continues to increase, which makes the running stability of the frame worse, the manufacturing accuracy is difficult to guarantee, and the accident rate is high

[0005] Moreover, these two distribution methods in the prior art are only suitable for the circumferential distribution of the three-electrode circular submerged arc furnace, and are not suitable for the distribution of the top of the rectangular furnace.

[0006] Rectangular submerged arc furnaces generally have 6 electrodes lined up or arranged in a 2×3 matrix. If a ring feeder is used to distribute materials, enough space will be reserved for electrode maintenance, and the diameter of the frame will be large, and the structure will be more unstable. The span of the electric furnace is also increased, and the investment in civil construction will be greatly increased

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