Tailings Turned to Treasure – How a Mining County Is Transforming Waste into a Multi-Billion Yuan Industry

Why a mining county in Hebei that annually processes millions of tonnes of iron ore tailings into high-value products is a compelling case study for mining regions worldwide – and what it means for quarry and mining operators seeking to unlock value from their waste streams

Kuan Cheng Manchu Autonomous County in Hebei Province is a traditional mining region that has long grappled with the environmental and economic burden of tailings. The county generates approximately 50 million tonnes of new mining waste annually, which for years were disposed of through open stockpiling – occupying land, generating dust, and posing risks to soil and groundwater. But a fundamental shift is underway. Through a combination of policy direction, technological innovation, and strategic investment, Kuan Cheng has turned its “ecological burden” into a green asset, establishing a comprehensive tailings resource utilisation model that spans phosphorus extraction, green building materials, and construction aggregates. At the heart of this transformation is an integrated processing chain that begins with crushing, screening, and classification – the very capabilities that OCP Mechanical Company has been delivering for over 40 years. With factory‑direct equipment including PE Series jaw crushers, HST Series cone crushers, and VSI 6X sand making machines, we help mining operators around the world unlock the value locked in their tailings streams, all at competitive prices.

The scale of the opportunity – from waste to wealth

The numbers from Kuan Cheng are striking. The county’s flagship project, the Yunji Phosphorus Industry tailings recycling facility, represents an investment of RMB 390 million and processes 28 million tonnes of iron ore tailings annually, producing 1.2 million tonnes of phosphorus concentrate with an annual output value exceeding RMB 800 million. The project achieves an 85 per cent recovery rate of useful minerals, closing the loop on resource utilisation and building a complete tailings value‑added system. Across the county, 11 phosphorus extraction projects are now operational, with a total investment of RMB 1.08 billion, producing 3 million tonnes of phosphorus concentrate and generating RMB 2.2 billion in annual output value. At the same time, 19 green building materials enterprises have been cultivated, collectively consuming more than 15 million tonnes of tailings annually. The county also produces and sells over 12 million tonnes of construction aggregates from tailings each year. For mining operators in other regions, these figures demonstrate that tailings are not a liability – they are an asset waiting to be unlocked.

From tailings to high‑value products – a multi‑stage processing chain

The Kuan Cheng model is built on a sophisticated, integrated processing chain that begins with the same equipment found in any modern quarry or mining operation: crushers, screens, and classification systems. At the Yunji Phosphorus Industry facility, tailings are conveyed via enclosed pipelines to the processing area, where they undergo crushing, screening, and separation before entering the flotation circuit. The entire process is enclosed, digitised, and monitored in real time, achieving clean production standards. In the building materials sector, companies like Xintongyuan New Environmental Protection Materials use a graded processing approach: fine particles are processed into microcrystalline stone decorative materials, medium‑sized particles become foamed ceramics, and coarse particles are used to produce permeable bricks. Each product stream represents a different revenue opportunity, with the same input material yielding multiple high‑value outputs. One production line alone consumes over 100,000 tonnes of tailings annually, producing materials that outperform natural stone and are already being exported to international markets. This demonstrates the power of a well‑designed processing circuit – and the critical role that crushing and screening equipment plays in unlocking that value.

The equipment imperative – why crushing and screening are the first step to tailings value

Every tailings utilisation project begins with size reduction and classification. Whether the goal is mineral recovery, aggregate production, or building materials manufacturing, the feed material must be crushed to the correct particle size and screened into the appropriate fractions. This is where OCP Mechanical’s expertise comes into play. Our PE Series jaw crushers provide primary reduction of run‑of‑mine material, while our HST Series cone crushers deliver the fine crushing required for downstream processing. Our VSI 6X sand making machines produce the consistent, cubical particles that are essential for high‑quality aggregates and building materials. And our S Series vibrating screens ensure accurate classification across multiple fractions – enabling the differentiated processing that turns a single tailings stream into multiple revenue streams. With over 40 years of manufacturing experience, we supply equipment that is built to handle the abrasive nature of tailings, delivering reliable performance with low maintenance requirements, all at factory‑direct prices. All product specifications, including capacity and power ratings, are continuously updated; for the latest parameters, please consult our online customer service.

A model for the future – and a market opportunity for equipment buyers

The Kuan Cheng model is not an isolated success story. With tightening environmental regulations, rising landfill costs, and growing demand for construction materials and critical minerals, tailings utilisation is becoming a strategic priority for mining regions worldwide. Governments are increasingly mandating the recovery of valuable minerals from waste streams and the use of recycled aggregates in construction. For quarry and mining operators, this represents both a challenge and an opportunity. The challenge is to invest in the equipment and processes needed to unlock the value in their tailings. The opportunity is to turn a cost centre into a profit centre – generating revenue from material that was previously considered waste. OCP Mechanical offers the equipment, expertise, and factory‑direct pricing to help operators make that transition. Our complete processing solutions – from primary crushing to fine screening – are engineered to handle the toughest tailings applications, enabling operators to achieve high recovery rates, consistent product quality, and low operating costs.

Sample tailings utilisation project data (For reference only)

All figures and recommendations are for reference only and are continuously updated. For the latest parameters, please consult our online customer service. Prices are for reference only and are subject to change based on configuration and market conditions. Actual results may vary depending on feed characteristics, operating conditions, and maintenance practices. OCP Mechanical reserves the right to update technical data and pricing without prior notice.

Why OCP Mechanical is your partner for tailings processing solutions

With over 40 years of manufacturing experience, OCP Mechanical combines engineering excellence with a practical understanding of the challenges and opportunities in tailings utilisation. We are a factory‑direct supplier, meaning you avoid the markups charged by dealers and intermediaries. Our comprehensive range of crushing, screening, and sand making equipment is built with high‑quality components and is designed for reliable performance in the most demanding applications, including the processing of abrasive tailings. We provide comprehensive after‑sales support, including spare parts availability, technical assistance, and on‑site training. Our logistics team has extensive experience shipping to global destinations, ensuring timely delivery of equipment and parts. We are committed to helping you turn your tailings from an environmental burden into a source of revenue.

Conclusion – Turn your tailings into treasure with the right processing equipment

The Kuan Cheng case study demonstrates that tailings are not waste – they are a resource waiting to be unlocked. With the right crushing, screening, and classification equipment, mining operators can recover valuable minerals, produce specification‑grade construction aggregates, and manufacture high‑value building materials – all from material that was previously discarded. OCP Mechanical offers the equipment, expertise, and factory‑direct pricing you need to capture this opportunity. Our online customer service team is available 24/7 to provide free consultation, technical data, and a customised quotation for your operation. Click the chat button now – let us help you turn your tailings into treasure.