25 mm to 37.5 mm (Large Coarse Aggregates): Used in heavy-duty concrete structures and road construction.
Equipment for discharging 20~37.5mm large coarse aggregate mainly includes the following types. These equipment play a key role in the sand and gravel aggregate production line and can accurately control the discharge particle size to meet specific needs:
1. Jaw crusher
• Features: Jaw crusher is a commonly used crushing equipment in industrial and mining production, mainly used for coarse crushing of various ores and bulk materials. It has a simple structure, high reliability of continuous operation, relatively low price, and adjustable discharge port, which is suitable for processing sand and gravel aggregate raw materials.
• Applicable scenarios: In the sand and gravel aggregate production line, the jaw crusher is usually used as coarse crushing equipment. Although its direct discharge particle size may be greater than 20~37.5mm, it provides a suitable raw material basis for subsequent medium and fine crushing and screening.
2. Cone crusher
• Features: The cone crusher has a large crushing force, large crushing ratio, and large processing capacity. It has good adaptability to most materials and materials with high hardness and difficult to crush. Its hydraulic system and dynamic cone support structure are complex to manufacture and maintain, but the product particle size is well controllable.
• Applicable scenarios: In sand and gravel aggregate projects, cone crushers are widely used in the second stage of crushing. By adjusting the parameters, the discharge particle size can be accurately controlled within the range of 20~37.5mm.
3. Impact Crusher
• Features: The impact crusher has a relatively simple structure, a large operating crushing ratio, and a good product particle shape. It has a large crushing ratio and low energy consumption, but the hammer and impact plate are easy to wear, which is suitable for processing fragile materials.
• Applicable scenarios: In sand and gravel aggregate production lines where the product particle shape needs to be controlled, the impact crusher can be used in the medium and fine crushing stage. By adjusting the parameters, coarse aggregates of 20~37.5mm can be discharged.
4. Screening equipment
Vibrating screen: Vibrating screen is a piece of indispensable screening equipment in aggregate production lines. It separates aggregates of different particle sizes through vibration. In the process of discharging 20~37.5mm coarse aggregates, the vibrating screen will play a key role. By configuring the appropriate screen aperture (such as 20mm, 26.5mm, 31.5mm, 37.5mm, etc.), the coarse aggregate of the required particle size can be accurately separated.
In actual production, crushing equipment and screening equipment are usually used in combination to form a complete aggregate production line. For example, the raw materials are first coarsely crushed by a jaw crusher, then medium and finely crushed by a cone crusher or an impact crusher, and finally screened by a vibrating screen to obtain coarse aggregate that meets the particle size requirements.
It should be noted that different production line configurations and raw material characteristics may affect the final product particle size. Therefore, when selecting equipment and adjusting parameters, it is necessary to flexibly adjust and optimize according to actual conditions. At the same time, with the development of technology and the upgrading of equipment, new crushing and screening equipment are constantly emerging, which may have higher efficiency, lower energy consumption, and better particle size control capabilities. Therefore, when selecting equipment, it is recommended to comprehensively consider factors such as equipment performance, cost-effectiveness, and production needs.
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. We can offer you a free design and completed solutions according to your project.
Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
