The effect and feasibility of jaw crusher + counterattack crusher in processing granite.

Jaw crushers (jaw crusher) and impact crushers (impact crusher) are commonly used crushing equipment, each with its own characteristics and application range. When dealing with granite, the combination of these two devices may have different effects and cost-effectiveness.

The ability of the jaw crusher to handle granite.

The jaw crusher (jaw breaker) is mainly used for primary and secondary crushing operations, suitable for various materials with a compressive strength not exceeding 320 MPa, including hard rocks such as granite. The characteristics of the jaw crusher include a large feed opening size, capable of handling larger pieces of material, as well as simple structure, easy manufacturing, reliable operation, and convenient use and maintenance.

The limitations of the counterattack crusher in processing granite

The impact crusher (also known as the counter-attack crusher) is suitable for coarse crushing, medium crushing, and fine crushing operations. It can handle various materials with a maximum edge length of up to 500mm and a compressive strength of up to 350MPa, including granite. However, when crushing granite, the plate hammer of the impact crusher wears out significantly. The service life of a set of plate hammers is typically 120 hours, and the consumption of wear-resistant parts is not conducive to cost savings.

The advantages and disadvantages of using a combination

Using the jaw crusher and the impact crusher in combination can achieve two-stage crushing, simplify the production process, and potentially reduce energy consumption and wear of parts. However, this combination may also lead to increased equipment investment costs, and the production cost per ton of finished aggregate may be higher.

Cost and efficiency considerations

According to the data in the search results, the “jaw crusher + impact crusher + sand making machine” configuration scheme can achieve a production cost of finished aggregate up to 9.95 yuan per ton. In contrast, the “single-stage jaw crusher + German rotor centrifugal sand making machine” configuration has a lower cost, with a production cost of only 4.44 yuan per ton of finished aggregate.

Conclusion

In summary, it is feasible to process granite using a combination of jaw crusher and impact crusher. However, it is important to note that this setup may lead to higher costs and wear. If cost is a consideration, it might be necessary to evaluate whether adopting other more energy-efficient and low-cost crushing solutions would be beneficial. Regular maintenance and replacement of wearable parts are also essential to ensure the long-term stable operation of the equipment. When making decisions, it is recommended to consult professional mining machinery equipment suppliers for more detailed suggestions and solutions.