Case Study: HSI Crusher Spare Parts in Australia

The steps in the crusher process refer to the procedure of breaking down large pieces of material into the desired particle size through mechanical force, and typically include the following key steps:

1. ‌Material Preparation‌: First, the raw material must undergo preliminary screening and pretreatment to remove impurities and oversized pieces, ensuring the material meets the crusher’s feed requirements. For example, materials with high moisture content (such as Chinese herbal medicines) must be pre-dried to a moisture content below 10% to prevent equipment blockages.

2. ‌Primary Crushing Stage‌: The material undergoes initial crushing in a jaw crusher or hammer crusher, breaking large chunks down to a medium particle size (typically 50–100 mm). During this stage, the feed rate and crusher speed (recommended 800–1200 rpm) must be controlled to prevent equipment overload.

3. ‌Secondary Crushing Stage‌: The material from the primary crushing stage enters a cone crusher or impact crusher for further crushing to a size of 10–30 mm. At this stage, the crushing chamber clearance (typically 5–15 mm) and discharge opening size must be adjusted to ensure uniform particle size.

4. ‌Fine Crushing Stage‌: A super-fine grinder or ball mill is used to finely grind the material, ultimately achieving a fine powder grade (e.g., 80–300 mesh). During this stage, attention must be paid to airflow control (e.g., 32 m³/h) and motor power matching (e.g., 15–23 kW) to improve grinding efficiency.

5. ‌Screening and Classification‌: The crushed material is separated by particle size using a vibrating screen or air classifier, with non-conforming particles returned to the previous process for reprocessing. The mesh size of the screen should be selected based on the final product requirements (e.g., 100 mesh or 200 mesh).

6. ‌Dust Collection and Packaging‌: Dust generated during the crushing process is collected via a baghouse dust collector, while the finished product is packaged using an automatic packaging machine to ensure cleanliness and production efficiency.