Continuous fuming furnace and its continuous fuming process

Abstract

The invention discloses a continuous fuming furnace and a continuous fuming process adopting the continuous fuming furnace. The continuous fuming furnace comprises a furnace body, wherein a furnace chamber is arranged in the furnace body; a partition wall and a slag dam are arranged in the furnace chamber, and divide the furnace chamber into a melting zone, a converting zone and a depleting zone; a first channel communicated with the melting zone and the converting zone is arranged at the lower end of the partition wall; the partition wall is higher than the liquid level of a molten pool, and the slag dam is lower than the liquid level of the molten pool. A charging opening for charging materials into the melting zone, a smoke outlet, a first spray gun opening, a second spray gun opening, and a slag tap for discharging waste slags from the depleting zone are formed in the furnace body; a first spray gun and a second spray gun are arranged on the furnace body; the first spray gun is inserted into the first spray gun opening, and is used for spraying pulverized coal and oxygen-containing gas into the melting zone; the second spray gun is inserted into the second spray gun opening, and is used for spraying the pulverized coal and the oxygen-containing gas into the converting zone and the depleting zone. The continuous fuming furnace according to an embodiment of the invention can be used for treating furnace slags continuously.

Description

technical field [0001] The invention relates to the field of nonferrous metal smelting, in particular to a continuous fuming furnace and a continuous fuming process using the same. Background technique [0002] Fuming furnace is a commonly used non-ferrous metal smelting equipment, such as the treatment of slag for lead and zinc smelting. Fuming furnaces in the related art are generally unable to handle cold material, and even if cold material is processed, the amount of cold material is limited. In addition, the fuming furnaces in the related art are also called intermittent fuming furnaces. The operation is intermittent, that is, the feeding and slagging are both intermittent. The processing of batch materials has low processing efficiency, high energy consumption, and frequent alternating operations of starting and stopping. Air supply and coal supply also need to be exchanged accordingly, and the operation is cumbersome and unsafe. In order to realize the continuous f...

AI Technical Summary

Problems solved by technology

Fuming furnaces in the related art are usually unable to handle cold material, and even if cold material is processed, the amount of cold material is limited

In addition, the fuming furnaces in the related art are also called intermittent fuming furnaces. The operation is intermittent, that is, the feeding and slagging are both intermittent. The processing of batch materials, so there are low processing efficiency, high energy consumption, and frequent alternating operations of starting and stopping

The air supply and coal supply also need to be exchanged accordingly, and the operation is cumbersome and unsafe

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