The following is a detailed introduction to the three core crushing equipment for the processing of high-hardness concrete recycled materials—jaw crushers, cone crushers, and impact crushers (sand makers)—including their core advantages and application areas, along with some efficiency-enhancing schemes:
Jaw Crusher—The Leader in Coarse Crushing
Application Areas:
The jaw crusher plays a crucial role in the processing of recycled concrete materials, primarily used for the initial coarse crushing of concrete blocks. Especially when handling large-scale construction waste, the jaw crusher leverages its powerful crushing capacity to quickly break down large concrete blocks into smaller particles suitable for subsequent processing. Whether it’s demolished old buildings, bridges, or roads, the jaw crusher efficiently completes the coarse crushing task, facilitating subsequent processing.
Performance Highlights:
The jaw crusher features a high crushing ratio and robust impact resistance, which are key factors enabling it to excel in coarse crushing applications. It can easily crush materials with a Mohs hardness of 7 or higher, such as high-hardness concrete recycling materials. Additionally, the equipment is designed with wear resistance in mind, resulting in minimal wear and ensuring stable continuous operation. Even during prolonged, high-intensity crushing operations, the jaw crusher maintains outstanding performance, minimizing downtime caused by equipment failures.
Technical Specifications:
The jaw crusher boasts an impressive processing capacity, ranging from 5 to 3,000 tons per hour, which can be flexibly adjusted according to specific production requirements. Additionally, it supports crushing operations for over 100 types of mineral raw materials, demonstrating its broad applicability. Whether processing high-hardness concrete recycled materials or other types of mineral raw materials, the jaw crusher performs exceptionally well.
Cone Crusher — The Preferred Choice for Fine Secondary Crushing
Application Areas:
The cone crusher is primarily used for fine crushing of high-hardness recycled materials in concrete recycling applications. It is particularly suitable for scenarios with strict requirements on final product particle size, such as the production of recycled aggregates. During the production of recycled aggregates, the cone crusher can further crush the pre-crushed concrete recycled materials to achieve the required particle size, thereby meeting the standards for subsequent use or sale.
Performance Highlights:
The cone crusher employs advanced layer compression crushing technology, which ensures uniform and consistent output particle size, significantly enhancing product quality. Compared to traditional crushing equipment, the cone crusher reduces energy consumption by 30%, helping to lower production costs and improve economic efficiency. Additionally, the equipment has a short payback period, enabling investors to recover their investment costs in a relatively short time and achieve substantial returns.
Practical Applications:
In practical applications, the cone crusher can crush concrete waste into aggregate with a particle size of ≤3cm. This aggregate can be directly used in roadbed construction or concrete mixing projects, achieving resource reuse. Through the fine crushing process of the cone crusher, concrete waste is transformed into valuable recycled aggregate, not only reducing environmental pollution caused by construction waste but also conserving natural resources.
Impact Crusher (Sand Making Machine) — A Powerful Tool for Improving Aggregate Quality
Application Areas:
The impact crusher (sand making machine) specializes in sand making and shaping in the processing of recycled concrete materials. It can produce high-quality construction aggregates to meet the demands of high-standard projects such as ready-mix concrete. In the production of recycled sand, the impact crusher plays a crucial role, further processing recycled concrete materials that have undergone coarse and fine crushing into recycled sand that meets standards.
Performance Highlights:
The impact crusher combines crushing and shaping functions in one unit, which is one of its significant advantages. It can process materials smaller than 3 cm into recycled sand of ≤5 mm in a single pass, with a smooth grain shape and controllable powder content. This high-quality recycled sand has broad application prospects in commercial concrete and other engineering projects, improving the performance and quality of concrete. Additionally, the impact crusher is equipped with a dust collection system, keeping dust concentration during operation below 50 mg/m³, effectively reducing dust pollution to the environment.
Efficiency-enhancing schemes
Mobile crushing plant:
The mobile crushing plant integrates the functions of jaw crushers, cone crushers, or impact crushers, enabling on-site processing of construction waste. This solution significantly reduces transportation costs and increases aggregate conversion rates by up to 40%. The mobile crushing plant features high flexibility and strong adaptability, allowing for rapid adjustments and deployment according to different construction waste processing requirements.
Double-stage screenless crusher:
The double-stage screenless crusher is specifically designed for high-moisture, sticky concrete waste. It poses no risk of material blockage, with an output particle size of ≤3mm, making it suitable for small-scale recycled material production lines. This crusher addresses the challenges of processing high-moisture, sticky concrete waste, improving processing efficiency and product quality.
Hydraulic breaker pre-treatment:
For large concrete structures, a high-frequency hydraulic hammer can be used for “pinpoint” disintegration. This pre-treatment method makes the concrete structure more loose, facilitating subsequent crushing operations. Overall efficiency is thus doubled, significantly reducing processing time and improving production efficiency.
