Nickel laterite ore raw material storehouse and nickel laterite ore raw material preparation system

Abstract

The invention relates to a nickel laterite ore raw material storehouse which comprises a storehouse body. The space in the storehouse body is divided into a storage area and a burdening area. The storage area comprises a nickel laterite ore bin, a quicklime bin and a reduction agent bin, and is provided with a raw material inlet for delivering corresponding raw materials to the raw material bins. The burdening area comprises a drying section and a burdening section. Nickel laterite ore and quicklime are stacked in the drying section so that the nickel laterite ore can be subjected to dewatering and drying. The burdening section receives the raw materials from the drying section and the reduction agent bin so as to prepare sintering raw materials. The burdening area is provided with a prepared material outlet communicating with the burdening section. According to the nickel laterite ore raw material storehouse, preparation, burdening and other operations of the raw materials are carried out in the sealed storehouse and not affected by wind or rain, and normal and stable operation of the production work is ensured; and material loss is avoided, and the production work has no raising dust pollution or noise pollution or sewage pollution to the external environment. The nickel laterite ore is wholly subjected to dewatering and drying with the quicklime, and energy consumption is reduced for subsequent sintering and smelting.

Description

technical field [0001] The invention belongs to the technical field of using laterite nickel ore to make iron, and in particular relates to a laterite nickel ore raw material storehouse and a laterite nickel ore raw material preparation system. Background technique [0002] Laterite nickel ore is the main raw material for the production of ferronickel. Before smelting, the raw material needs to be stored, dried, granulated, batched, and mixed in the raw material preparation stage before it can be sent to sintering and agglomeration. From the raw material characteristics of laterite nickel ore, the free water and crystal water contained in the raw ore are generally about 30% (about 20% free water and about 10% crystal water), which makes smelting difficult, and the raw material must be sintered and calcined, fully dried and It can be smelted in the furnace after pre-reduction. According to statistics, if the nickel content of the ore increases by 0.1%, the production cost ca...

AI Technical Summary

Problems solved by technology

The randomness of stockpiling and the inability to carry out mechanized operations have caused low production efficiency on the one hand, and on the other hand, the dust, noise, and waste water in production have seriously polluted the environment; for enterprises that use small blast furnaces to produce ferronickel, this The problems brought about by this extensive mode of production are particularly prominent

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