Cement mill pre-crushing equipment typically includes machinery that prepares raw materials for the grinding process in the cement mill. The main pieces of pre-crushing equipment are:
Jaw Crushers: These are used to crush large chunks of raw materials like limestone, clay, and gypsum into smaller pieces. They operate using a fixed and a moving plate to apply pressure and break down the materials.
Gyratory Crushers: Similar to jaw crushers, these offer continuous crushing action and are typically used for very hard and dense materials. They consist of a conical shape that gyrates inside a larger cone, crushing the material in the process.
Hammer Crushers: These use rotational hammers to shatter and disaggregate materials. They are particularly effective for softer materials and are known for their high throughput.
Impact Crushers: Utilizing fast-moving blow bars to crush material against stationary anvils or aprons, impact crushers are often used for medium-hard to softer materials.
Roll Crushers: These use two or more cylinders or rolls to compress and crush the material. They are suitable for producing finer material compared to jaw crushers.
Pre-grinders like Horizontal/Vertical Shaft Impactors (HSI/VSI): These are used before the raw materials are fed into the mill. HSIs use high-speed impact force, while VSIs use a vertical shaft to throw the material against hard surfaces for crushing.
These pieces of equipment help to reduce the size of raw materials, increase their surface area, and prepare them for the cement grinding process, ensuring efficient and effective cement production.
