Smelting furnace for smelting nickel matte and production method of low nickel matte

Abstract

The invention discloses a smelting furnace for smelting nickel matte and a production method of low nickel matte. The smelting furnace comprises a first area (1) used for melting and slagging an object to be smelted, a second area (2) used for reducing and vulcanizing the to-be-smelted material subjected to melting and slagging in the first area (1) so as to generate a target product, and a third area (3) for separating the target product; wherein the first area (1), the second area (2) and the third area (3) are communicated, and a partition wall (7) is arranged between the first area (1) and the second area (2) to separate the first area (1) and the second area (2); and the smelting furnace comprises a first furnace body (20) and a second furnace body (30) which are independent of each other. The first furnace body (20) and the second furnace body (30) are arranged corresponding to the first area (1) and the second area (2). And uptake flues (8) for discharging smoke together are arranged above the first area (1) and the second area (2).

Description

technical field [0001] The invention relates to the technical field of nickel oxide ore smelting, in particular to a smelting furnace for smelting nickel matte and a production method for low nickel matte. Background technique [0002] Nickel ore resources are mainly nickel sulfide ore and nickel oxide ore. Nickel sulfide ore has a high nickel content and is easier to develop and utilize. With the reduction of nickel sulfide ore resources, the development and utilization of nickel oxide ore has become an inevitable trend. At present, the main destination of nickel oxide ore is the field of stainless steel. With the rapid growth of the global demand for nickel for battery materials, it is imperative to develop and utilize nickel oxide ore to produce intermediate products for the field of battery materials. At present, the process of processing nickel oxide ore is mainly based on pyrolysis. As a relatively mature technology, the ultra-high temperature required by the pyrotechn...

AI Technical Summary

Problems solved by technology

The ferronickel produced under this process requires secondary refining, and the smelting process itself is completed by independent melting furnaces and reduction furnaces for material melting and reduction. The problem of circulation cannot adapt to continuous production, and requires the cooperation of multiple furnaces performing different functions, so the thermal efficiency is not high, and the process is forced to complicate and increase the cost

[0004] Another patent document discloses a smelting furnace designed with a high and low hearth. In the smelting furnace, there are two chambers with a height difference, thereby solving the process However, due to the large difference in the process conditions of high / low nickel matte production and the refining requirements of other chemical materials, the prior art has not yet disclosed the process and proprietary devices associated with high / low nickel matte

[0005] In view of this, the existing technology has not been able to realize the requirement of completing the production scale through one melting furnace and taking into account the space and cost requirements

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