150-200 tph Stone Crusher Plant

Frequently Asked Questions (FAQ) 

1. How do I select the correct crushing solution (Solution A or Solution B) based on my raw materials?

The choice depends on the hardness of your raw materials. Solution A (Vibrating Feeder → Jaw Crusher → Impact Crusher → Circular Vibrating Screen) involves lower investment and energy consumption; it is suitable for materials of medium to low hardness, such as limestone and bluestone. Solution B (Vibrating Feeder → Jaw Crusher → Cone Crusher → Impact Crusher for Sand Making → Circular Vibrating Screen in a Closed Circuit) employs a three-stage crushing process that includes sand making; it produces finished products with superior particle shape (flakiness/elongation index ≤ 8%) and is suitable for materials of high hardness, such as granite and basalt.

2. How does this production line control the specifications and gradation of the finished products?

Control is primarily achieved through classification and screening using the circular vibrating screen. You can obtain different finished product specifications by adjusting the mesh size of the screen. As outlined in the documentation, standard finished product specifications include 0–5 mm (manufactured sand), 5–10 mm, 10–20 mm, and 20–31.5 mm. If the finished product is a sand-gravel mixture, its fines content can be controlled using a wheel-type sand washer to ensure it meets the requirement of ≤ 10%.

3. How is a stable production capacity of 150–200 tons per hour guaranteed for this production line?

Stable capacity relies on the correct selection and matching of equipment, as well as the proper configuration of process parameters. Key factors include:

• Equipment Selection: As illustrated in the document's example, the models of the primary crushing equipment (e.g., the PE750x1060 Jaw Crusher and PFW1320 Impact Crusher) must be appropriately matched to the target production capacity.

• Crushing Ratio Allocation: Adhering to the recommended total crushing ratio of ≤ 40, along with a reasonable proportional distribution across the coarse, medium, and fine crushing stages (approximately 4:3:3).

• Circulating Load Management: By adjusting the screen mesh size, the circulating load rate within the closed-circuit screening loop is maintained at ≤ 150% to ensure smooth and efficient system operation.