Project Overview
A domestic environmental protection enterprise faced prominent operational bottlenecks in mixed construction and decoration waste recycling. Restricted by backward single-process disposal equipment, the client suffered from screen blinding, low sorting precision and poor resource recovery efficiency, failing to meet large-scale standardized solid waste recycling requirements.
Xinzhongyi provided a full-turnkey customized solution, deploying two sets of intelligent Construction & Decoration Waste Recycling Production Line with a designed processing capacity of 2,000 cubic meters per day. Covering feeding, crushing, screening, air separation and baling, the integrated production line builds a full closed-loop solid waste resource recovery system with stable and high-efficiency continuous operation.
2,000 m³
Day
On-Site Challenges
The raw materials were mixed construction waste, decoration waste and municipal solid waste, characterized by complex composition, wide particle size distribution, and mixed lightweight impurities including plastic, wood and textile. Traditional processing lines had obvious technical defects: conventional screening equipment was susceptible to blinding by humid and sticky decoration waste; single-stage crushing failed to produce qualified uniform aggregate gradation; outdated separation equipment could not completely remove light contaminants, resulting in low-purity recycled aggregates and low resource utilization. In addition, discrete equipment configuration caused high energy consumption and high O&M costs, limiting sustainable and profitable operation.
Customized Process Solution & Core Equipment Configuration
Based on on-site material characteristics and production demands, Xinzhongyi adopted a dual-line collaborative disposal process, forming a mature technical route of uniform feeding → staged crushing → multi-stage precision screening → density air separation → closed-loop recycling & baling. The core configuration of the customized Construction & Decoration Waste Recycling Production Line is as follows:
1. Intelligent Feeding & Preprocessing System
Heavy-duty apron feeders are configured for bulk, irregular decoration waste to achieve continuous quantitative feeding, effectively eliminating equipment stalling and blockage. Matched dedicated feeding equipment ensures stable conveying of heavy construction aggregates, guaranteeing consistent feed volume for downstream processes.
2. Two-Stage Gradation Crushing System
Adopting standard jaw crusher + impact crusher two-stage crushing technology. The jaw crusher performs primary coarse crushing to break bulk concrete, bricks and wood into medium-sized particles; the impact crusher conducts secondary fine crushing and shaping, optimizing aggregate gradation, reducing flaky particles, lowering equipment abrasion and improving overall operational stability.
3. Multi-Stage Precision Screening & Impurity Removal System (Core Process)
Differentiated screening equipment is deployed for classified sorting of heavy aggregates and lightweight impurities to solve fine sorting difficulties of mixed solid waste:
- Double-layer vibrating screen: Classifies construction waste aggregates of different particle sizes to ensure qualified finished aggregate purity;
- Double-layer & single-layer flip-flop screens: Adopts flexible screen surface to avoid material adhesion and screen blinding, improving screening efficiency for humid and complex decoration waste;
- Trommel screen, bounce screen & spiral screen: Realizes fine particle classification and precise separation of aggregates from wood, fabric and miscellaneous impurities;
- Dual new-type air separators: Separates lightweight impurities including plastic, foam and wood chips via density difference, thoroughly removing contaminants from recycled aggregates.
4. Closed-Loop Resource Recovery & Baling System
The production line is equipped with magnetic iron removal devices to recycle mixed metal materials. Qualified recycled aggregates are directly conveyed to finished product silos for secondary utilization. Separated lightweight impurities are centrally collected and compressed by professional baling presses. Baled light materials can be processed into RDF fuel for power generation, realizing full resource recovery and zero-discharge closed-loop disposal.
Gallery
Benefits
After official commissioning, the Xinzhongyi customized Construction & Decoration Waste Recycling Production Line has achieved stable continuous operation with prominent comprehensive benefits:
1. Improved processing capacity and efficiency: The dual-line collaborative operation realizes a stable daily throughput of 2,000m³. The integrated process solves solid waste backlog fundamentally, with overall operational efficiency increased by over 30% compared with conventional production lines.
2. Elevated resource utilization rate: Multi-stage screening and air separation treatment produces high-purity recycled aggregates that can be widely used in road base construction and recycled brick production. The recovery rate of recyclable materials such as plastic and wood reaches more than 85%. Light waste RDF recycling realizes energy regeneration, with overall resource utilization rate exceeding the industry average.
3. Reduced operational costs: Optimized process layout and integrated equipment configuration cut overall energy consumption by 15%. The whole line features low failure rate and easy maintenance, effectively reducing O&M costs. It delivers low-cost and high-profit operation for the client, while reducing landfill volume and supporting local zero-waste city development.
Conclusion
Xinzhongyi’s professional customized Construction & Decoration Waste Recycling Production Line effectively solves the industry pain points of difficult screening, severe blinding and low recycling rate in mixed solid waste treatment. With reliable process design and full-life-cycle equipment services, Xinzhongyi helps clients achieve full closed-loop resource utilization of construction and decoration waste, creating dual economic and environmental values for solid waste green recycling projects.
