Building a nickel ore processing plant requires various equipment to handle different stages of the processing. Here are some key equipment typically used in a nickel ore processing plant:

1. Crushers: These machines are used to reduce the size of the mined ore. Jaw crushers and cone crushers are commonly used for primary and secondary crushing of nickel ore.
2. Grinding mills: Nickel ore needs to be ground to a fine size before it can be further processed. Ball mills, rod mills, and SAG (Semi-Autogenous Grinding) mills are commonly used for grinding nickel ore.
3. Flotation equipment: Nickel ore is often processed through a flotation process to separate valuable minerals from the gangue (unwanted material). Flotation cells and flotation columns are used in this process.
4. Magnetic separators: Magnetic separators are used to separate magnetic minerals from non-magnetic ones. They can be used to remove impurities or concentrate the nickel ore.
5. Thickening and filtering equipment: After the initial processing stages, thickening and filtering equipment such as thickeners and pressure filters are used to separate solids from liquids and concentrate the nickel ore further.
6. Drying equipment: Nickel ore may need to be dried before further processing. Rotary dryers or fluidized bed dryers can be used for this purpose.
7. Smelting and refining equipment: If the goal is to produce refined nickel metal or nickel-containing products, smelting and refining equipment is required. This can include furnaces, converters, and electrolytic cells.
8. Material handling equipment: Various equipment such as conveyors, bucket elevators, and stackers/reclaimers are used for the efficient movement of ore throughout the processing plant.
9. Environmental control systems: A nickel ore processing plant should have systems in place to control and mitigate environmental impacts. This may include dust collection systems, water treatment systems, and emission control equipment.