Machine-made sand with good particle shape can improve the performance of concrete, reduce material waste, be more widely used, and enhance market value. So which crusher produces the best machine-made sand particle shape? How to make our output particle shape better?

 

The quality of the particle shape is not only related to the type of crusher, but also to the parameter setting and process combination. When choosing the type of crusher, you should choose an impact crusher, such as an impact crusher and an impact sand making machine. The impact crusher produces cubic particles through impact and multiple collisions, while the extrusion type (such as a cone crusher) is prone to produce needle-like particles. At the same time, parameters such as crushing ratio, feed particle size and circulating load are also key factors.

1. Impact crusher (better particle shape)

 

Particle shape characteristics: The finished product is cubic, with few edges and corners, a smooth surface, a high powder content, and a low proportion of needle-like particles.

 

Technical advantages: Through the synergistic effect of impact crushing and multi-stage impact plates, it has both crushing and shaping functions, which can effectively optimize the particle shape of the material.

 

Applicable scenarios: Suitable for medium and low hardness (such as limestone, coal gangue) and medium and fine crushing of brittle materials, suitable for building materials, sand and gravel aggregates, etc.

 

2. Vertical impact crusher (optimal particle shape)

 

Particle shape characteristics: The finished product is in a cubic shape, with beautiful particle shape, low needle-like content and low powder content.

 

Technical advantages: It has two modes: stone hitting stone and stone hitting iron. The dual rotor design improves the crushing efficiency while reducing needle-like particles. The gap between the impact plates can be adjusted to control the particle collision angle, optimize the particle shape uniformity, and the particle roundness is higher, which is suitable for Class I sand production.

 

Applicable scenarios: Suitable for fine crushing and shaping of materials of any hardness, suitable for building materials, high-grade highway aggregate production and other fields with strict requirements on particle shape.

3. Cone crusher (poor particle shape)

 

Particle shape characteristics: There are more needle-like particles in the finished product, with obvious edges and corners, and the particle shape is less regular, and additional shaping processes are required to meet high standards.

 

Technical reasons: Adopting the principle of extrusion crushing, the material is repeatedly compressed and broken between the moving cone and the fixed cone, and it is difficult to avoid the generation of irregular particle shape.

 

Applicable scenarios: Dedicated to large-scale crushing of high-hardness materials (such as granite and basalt), suitable for mining scenarios with low requirements for particle shape. To achieve excellent particle shape, you can add a vertical impact crusher (sand making machine) behind the cone to shape the material.

 

By selecting the appropriate machine model, optimizing process parameters (such as crushing ratio, feed particle size) and equipment combination, the crushing efficiency and particle quality can be effectively balanced.

 

Luoyang Dahua Heavy Industry Science and Technology Co., Ltd. is a direct sales manufacturer integrating R&D, production, sales and service. It provides various types of mining crushing equipment, and its high quality is more reliable. It optimizes the combination of various types of equipment, tailors supporting equipment and construction plans to meet different process requirements, and serves you from equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and use.