We are proud to announce that the project “Intelligent Manufacturing and Low-Carbon Application of High-Quality Manufactured Aggregates for High-Speed Railways,” in which Liming Heavy Industry played a pivotal role, has been awarded the First Prize of the Railway Science and Technology Progress Award.
This honor is a testament to Liming Heavy Industry's deep technical expertise in the field of stone crushing and manufactured sand preparation. As a core participating unit, we contributed numerous proprietary patented technologies and actively engaged in the formulation of industry standards, providing solid technical support for the intelligent production and low-carbon application of high-quality aggregates used in high-speed rail infrastructure.
Quality Begins with Aggregates
High-speed rail construction demands rigorous standards for aggregates: uniform shape, continuous gradation, controllable fines content, and stable strength. These metrics directly dictate the safety and durability of track slabs, bridges, and tunnels.
Liming Heavy Industry focuses on the technical challenges of rail aggregate production by providing systematic support across three dimensions: patents, standards, and carbon reduction. Our patented technologies optimize crushing and sand-making processes, effectively reducing energy consumption and emissions in alignment with green high-speed rail construction principles.
Core System: The VU Aggregate Optimization System
In the production of high-quality manufactured sand, Liming Heavy Industry’s self-developed VU Aggregate Optimization System plays a critical role. Designed to meet the stringent requirements of major projects like high-speed railways, it offers six core advantages:
- Superior Particle Shape: Finished sand is spherical with significantly reduced sharp edges, improving fluidity by over 10% and reducing void ratio by 0.5-1%.
- Ideal Gradation: The gradation curve aligns with the median of Zone II sand, featuring a high proportion of fine sand (0.15–0.6mm) and minimal ultra-fine powder.
- Flexible Adjustability: Allows for real-time adjustment of fineness modulus (2.3–3.2) and fines content (5–13%) without changing hardware or screens.
- Reduced Material Costs: Higher fluidity and stability reduce concrete's water and cement demand, helping downstream companies cut costs and improve competitiveness.
- Smart & Eco-friendly: Featuring a fully sealed, negative-pressure design, the system minimizes dust and noise. Its high level of electrical intelligence ensures simple, convenient operation.
- Broad Raw Material Adaptability: Converts low-value materials—such as stone chips, screen rejects, or tunnel waste—into high-quality aggregates, facilitating a circular economy.
Comprehensive Equipment for Infrastructure Success
Beyond the VU system, Liming Heavy Industry provides a full spectrum of crushing equipment, including Jaw Crushers, Cone Crushers, Impact Crushers, and Vertical Shaft Impact Crushers. By integrating crushing, sand making, and shaping into a unified system, we support the demanding, continuous production cycles required by national high-speed rail projects.
Honor and Responsibility
Winning the First Prize of the China Railway Society Science and Technology Award is both an honor and a call to action. Moving forward, Liming Heavy Industry remains committed to deepening its research in crushing and sand-making technology. We look forward to serving national major projects—including high-speed rails, highways, bridges, and airports—using “Intelligent Manufacturing” to safeguard engineering quality and contribute to the development of a world-class transportation network.