Industrial silicon electric furnace electrode arrangement and configuration structure

Abstract

The invention discloses an industrial silicon electric furnace electrode arrangement and configuration structure. A set of new electrodes A1, B1 and C1 are added on the basis of an original set of electrodes A, B and C, and six electrodes are formed; the distances between all phases of the first set of electrodes A, B and C and the inner wall of an electric furnace are equal; and the distances between all phases of the second set of electrodes A1, B1 and C1 and the inner wall of the electric furnace are equal, and the intervals among the second set of electrodes A1, B1 and C1 are equal. The current load of each phase of the electrodes can be effectively reduced, thus, the current density distribution in the electric furnace is more uniform, and the requirements of smooth and normal operation of the industrial silicon electric furnace are met.

Description

technical field [0001] The invention relates to an industrial metallurgical smelting furnace technology, in particular to an electrode setting and layout structure technology of an industrial silicon smelting furnace. Background technique [0002] The smelting and production process of industrial silicon is relatively simple. Due to different enterprises, the size of the electric furnace varies, and the power of the electric furnace varies from 6300KVA to 33000KVA. However, it is basically an open and semi-open electric furnace with three electrodes. The energy consumption of this three-electrode setting is relatively large, and the average power consumption is as high as 13000kwh / t. The heat loss at the work site is large, the operating environment is poor, the electrode consumption is high, and the production cost remains high. Due to the operation of three electrodes, once an electrode breakage accident occurs, it will take a long time to eliminate the accident and it wi...

AI Technical Summary

Problems solved by technology

However, it is basically an open and semi-open electric furnace with three electrodes. The energy consumption of this three-electrode setting is relatively large, and the average power consumption is as high as 13000kwh / t.

The heat loss at the work site is large, the operating environment is poor, the electrode consumption is high, and the production cost remains high

Due to the operation of three electrodes, once an electrode breakage accident occurs, it will take a long time to eliminate the accident and it will easily lead to the re-breakage of other electrodes, and even directly lead to the occurrence of a dead furnace accident, causing the factory to suffer huge economic losses.

Therefore, at present, metal silicon electric furnaces in many factories have been difficult to achieve normal production at full capacity.

[0003] The smelting of metal silicon is a high-energy-consuming production. At present, most of the electric furnaces for metal silicon smelting are three-phase three-electrode electric furnaces. The main disadvantages are: 1. Due to the limitation of the diameter of the electrodes, it is impossible to make a large metal silicon electric furnace; 2. High energy consumption and electrode consumption , it is difficult to reduce the production cost; 3; the dead furnace accidents caused by broken electrodes often occur

However, the current three-electrode metal-silicon electric furnace is difficult to break through because of the large-diameter electrode manufacturing technology. The most mature carbon electrode in production and application has a diameter of 1272mm, and the actual active load can only reach 25,000KVA, which will bring production costs. A substantial increase

Therefore, the current production equipment can no longer meet the needs of the industry.

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