With accelerating urban renewal and residential renovation across southwest China, managing complex Construction & Demolition (C&D) waste and Interior Decoration/Renovation Waste has become a critical environmental challenge for local municipalities.
In July 2026, Henan Guoxin Machinery successfully commissioned a turnkey recycling and sorting center for the Daozhen County Construction & Decoration Waste Recycling Center in Guizhou Province. The facility was custom-engineered to process highly heterogeneous mixed renovation waste, extracting high-purity recycled aggregates while compressing light combustible fractions for secondary utilization.
1. Feedstock Profile & Processing Challenges
Interior decoration waste is notoriously difficult to process due to its complex and variable composition compared to standard concrete demolition waste.
Incoming Feedstock Composition:
┌───────────────────────────────┬─────────────┐
│ Waste Fraction │ Material Types Identified │
├───────────────────────────────┼─────────────┤
│ Heavy Inerts (60% - 70%) │ Red bricks, concrete blocks, mortar, ceramic tiles │
├───────────────────────────────┼─────────────┤
│ Light Combustibles (15% - 25%)│ Cardboard packaging, plastic films, textiles, foam │
├───────────────────────────────┼─────────────┤
│ Wood & Metals (5% - 10%) │ Wooden boards, furniture scraps, scrap rebar, nails│
└───────────────────────────────┴─────────────┘
Key Operational Challenges:
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High Entanglement Risk: Thin plastic film and packaging wire tend to wrap around conventional rotary shafts, leading to frequent downtime.
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Severe Dust & Fine Contamination: Gypsum board dust and fine mortar reduce the market value of final recycled aggregates if not separated efficiently.
2. Guoxin Engineering Solution & Line Configuration
To handle high surge loads and variable moisture levels, Guoxin engineered an integrated multi-stage mechanical sorting and compaction circuit inside a fully enclosed facility.
Raw Decoration Waste
│
▼
[ Heavy-Duty Chain Plate / Belt Feeder ]
│
▼
[ Trommel & Air Density Classifier ] ──► Fine Dirt & Gypsum (<10mm)
│
├─► Light Fraction (Plastics, Cardboard) ──► [ Guoxin Automatic Baler ] ──► Dense Bales
│
└─► Heavy Inerts (Bricks, Concrete) ─────► [ Overband Magnet ] ──────► Recycled Aggregates
Core Machinery Highlights Installed On-Site:
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Heavy-Duty Incline Chain & Belt Feeders: Engineered with reinforced side guards and impact rollers to absorb shock loads from dumping heavy concrete slabs.
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High-Velocity Air Classifier: Uses controlled air knives to lift plastic film, cardboard, and light textiles out of the heavy stone stream with high separation efficiency.
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Guoxin Automatic Horizontal Hydraulic Baler: Compresses separated light materials into high-density rectangular bales, reducing transportation volume by up to 75%.
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Overband Magnetic Separator: Positioned above the aggregate discharge belt to automatically extract ferrous scrap and rebar.
3. On-Site Operational Results & Output Quality
Following system fine-tuning and continuous load testing, the Daozhen processing line achieved stable continuous operation under design throughput.
On-Site Performance Results:
┌──────────────────────────────────────┬──────┐
│ Metric Parameter │ Operational Achievement │
├──────────────────────────────────────┼──────┤
│ Processing Capacity │ Meets target TPH with smooth continuous feed│
├──────────────────────────────────────┼──────┤
│ Recycled Aggregate (RCA) Purity │ ≥ 95% free of plastics and wood debris │
├──────────────────────────────────────┼──────┤
│ Light Material Baling Density │ High-density compact bales ready for logistics│
├──────────────────────────────────────┼──────┤
│ Environmental Compliance │ Fully enclosed warehouse operation │
└──────────────────────────────────────┴──────┘
Commercial Value Creation for the Client:
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Clean Recycled Aggregates (RCA): The clean sorted bricks and concrete are supplied directly to local brickyards and road construction contractors as eco-friendly sub-base material.
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Resource Utilization of Light Fractions: Baled cardboard and plastic packaging are routed to secondary paper mills and plastic recyclers, turning waste disposal costs into a revenue stream.
The successful commissioning of the Daozhen County C&D and Decoration Waste Recycling Center demonstrates Guoxin’s engineering capability in delivering reliable, low-maintenance turnkey sorting lines under challenging feedstock conditions.
Whether you are planning a municipal renovation waste plant or a large-scale C&D recycling facility, Henan Guoxin Machinery provides complete layout design, equipment manufacturing, and on-site commissioning services. Contact our engineering consultants today to discuss customized sorting solutions for your project.