150‑200t/h Construction & Renovation Waste Recycling Project in Guangdong, China

Project Overview

Customer Requirements and Project Challenges

Driven by local urban renewal, large volumes of mixed construction and decoration waste were generated. The incoming materials feature highly complicated composition, mixing hard concrete blocks, bricks, scrap steel, timber, foam and plastic impurities together.

The customer hoped to build a high‑throughput automatic sorting production line to replace inefficient manual sorting. Core demands included stable continuous production, high‑purity recycled aggregate output, effective separation of multiple fractions, and lowering landfill volume.

Main project challenges:

• Separate multi‑component mixed renovation waste with varying hardness, size and density
• Remove sticky, light impurities to guarantee finished recycled aggregate quality
• Achieve high‑rate resource recovery with minimal manual intervention
• Secure one‑time successful commissioning and long‑term zero‑fault field operation

Zhongyi Construction & Renovation Waste Recycling Solution

Combined with local waste characteristics and production targets, Zhongyi’s engineering team customized a complete set of intelligent solid‑waste recycling workflow covering feeding, pre‑screening, crushing, multi‑stage screening, magnetic separation and multi‑mode air separation.

Complete recycling workflow:

• Feeding System: Vibrating feeder delivers mixed renovation waste for even, stable material supply.
• Pre‑screening: Bar flip‑flow screen removes fine fractions and sticky materials to relieve downstream load.
• Crushing Module: Breaks large‑size concrete and brick blocks to target granularity for further sorting.
• Multi‑stage Screening: Adopts single‑deck flip‑flow screen, heavy‑duty bounce screen and spiral screen for hierarchical classification according to material physical properties.
• Magnetic Separation: Magnetic separator picks out ferrous scrap iron from waste stream.
• Multi‑mode Air Separation: Negative‑pressure air sifter and foam air classifier separate lightweight contaminants such as foam, plastic and paper.
• Finished‑material Discharge: Output high‑quality recycled building aggregate, reclaimed metal, recovered wood and baled light‑weight waste for subsequent resource reuse.

Main Equipment Configuration

The construction and renovation waste recycling line integrates multiple types of screening, separation, and conveying equipment to handle complex mixed waste streams. Each machine is selected according to the characteristics of construction waste, including irregular particle sizes, high impurity content, and mixed lightweight materials.

1. Apron Conveyor

Provides stable and continuous feeding for mixed construction waste. The robust structure allows it to handle large and irregular materials while maintaining a consistent material flow for downstream processing.

2. Bar Deck Flip‑Flow Screen

Designed for screening wet and sticky construction waste. It performs initial classification by removing fine materials and reducing material blockage during the screening process.

3. Single‑deck Flip‑Flow Screen

Used for further size classification after crushing. It separates recycled aggregates according to particle size requirements and supports the production of different recycled material grades.

4. Heavy‑duty Bounce Screen

Separates materials based on differences in elasticity and movement characteristics. It helps distinguish heavy aggregates from lightweight components such as wood and other debris.

5. Spiral Screen

Provides additional classification for mixed material fractions. It helps reduce impurities and improves the quality consistency of intermediate recycled products.

6.Magnetic Separator

Removes ferrous metals such as scrap iron from the waste stream. The recovered metals can be collected separately for further recycling.

7.Negative-Pressure Air Separator & Foam Air Classifier

Uses controlled airflow to separate lightweight materials, including foam, plastic, and paper, from heavier recycled aggregates. This process helps improve the cleanliness of final products.

8.Apron Chain Conveyor

Connects different processing stages and transfers heavy materials between equipment. Its durable structure is suitable for continuous operation in demanding construction waste recycling environments.

Construction and Renovation Waste Recycling Process

Mixed construction and renovation waste is first delivered into the recycling system through a vibrating feeder, which ensures a stable material flow for the following treatment stages. The bar deck flip-flow screen performs initial screening to separate fine materials, while larger components such as concrete and bricks are transferred to the crushing section for size reduction.

After crushing, the materials enter a multi-stage separation process using heavy-duty bounce screens, single-deck flip-flow screens, and spiral screens to achieve accurate size classification. Magnetic separators then recover ferrous metals, while air separation equipment removes lightweight materials such as foam, plastics, and paper. Through the complete sorting process, the system produces recycled aggregates, recovered metals, reclaimed wood, and separated lightweight materials that can be reused in construction and resource recovery applications.

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Advantages

XinZhongyi ECO Machinery delivers tailor‑made renovation‑waste recycling packages drawing on over ten‑years of solid‑waste‑treatment R&D and project experience.

• Customized recycling process design: The process layout and equipment configuration are selected according to the actual waste composition, processing capacity, and final product requirements of each project.
• Self-developed screening and separation equipment: Flip-flow screens, bounce screens, and spiral screens are designed for handling complex construction waste with high moisture, mixed materials, and variable particle sizes.
• Combined separation technologies: Magnetic separation and air classification systems are integrated into the recycling line to recover metals and remove lightweight impurities from recycled aggregates.
• On-site installation and technical support: Engineering teams provide equipment installation guidance, commissioning assistance, and operator training to ensure smooth plant operation.
• High resource recovery performance: The recycling process enables comprehensive utilization of construction waste and significantly reduces the amount of material sent to landfill.

Project Results

Zhongyi’s engineering team completed equipment installation, commissioning, and production testing for this Guangdong construction waste recycling project. After startup, the production line reached the designed operating conditions and entered continuous production.

With a processing capacity of 150–200 t/h and an annual treatment capacity of approximately 600,000 tons, the system separates mixed renovation waste into recycled aggregates, recovered metals, reclaimed wood, and lightweight materials. The project achieves a comprehensive resource utilization rate of 99.9%, reducing landfill pressure and providing reusable materials for local construction applications.

Customer Feedback

Why Choose Zhongyi for Construction Waste Recycling?

Build Your Construction Waste Recycling Solution

Every construction waste recycling project has different requirements depending on incoming material composition, processing capacity, and final product standards. Zhongyi’s engineering team can analyze your project conditions and provide a suitable process design and equipment configuration.

Contact us to discuss your construction waste recycling project and receive a customized solution proposal.

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