Construction waste sorting machine:600-1000 tons/day for construction waste sorting.
The GX-BD1000 Intelligent Construction Waste Sorting System is a flagship solution developed by Guoxin Machinery for special scenarios such as urban core area renewal and old city renovation. It is specifically designed to process construction and decoration waste with exceptionally complex composition, containing large amounts of lightweight debris and “hidden hazardous materials.”
This system has a daily processing capacity of 600-1000 tons. Through a combination of multi-stage intelligent sorting and flexible crushing processes, it ensures high-efficiency throughput while producing aggregates with a purity exceeding 95%, which can be directly used to produce high-standard recycled building materials.
1. Core Challenges of Construction Waste Sorting
The Special Characteristics of Waste from Old City Renovation:
According to project analysis in Jiangsu Province, although this type of waste is mainly composed of concrete and bricks (accounting for over 60%), the proportion of mixed lightweight combustibles (such as plastics, wood, and textiles) and hazardous impurities (such as small amounts of paint buckets and paint bags) is much higher than in new construction projects.
If these lightweight and hazardous materials are not thoroughly separated, they will severely contaminate recycled aggregates, rendering them unsuitable for building material applications and relegating them to low-value backfill materials, significantly harming the economic and environmental benefits of projects.
The industry pain point of sorting accuracy:
Traditional sorting lines rely on manual labor and simple mechanical screening, resulting in low efficiency and poor purity when dealing with complex materials. While industry-leading intelligent sorting solutions can improve the purity of lightweight material separation to over 95%, maintaining stable accuracy under high throughput and effectively identifying and separating hazardous impurities remains a technical challenge.
2. Construction Waste Sorting Process Analysis
The Guoxin GX-BD1000 system adopts an integrated process of “flexible shredding + multi-stage intelligent selection,” specifically designed to handle complex compositions.
The process begins with negative-pressure closed-loop feeding and pre-screening. Materials enter the fully enclosed system, and dust is collected immediately. A heavy-duty bar screen performs the initial screening, separating oversized interfering materials and some slag.
The core component is the intelligent identification and sorting module. The system is equipped with a high-precision AI vision recognition unit, capable of identifying over 260 types of materials, including bricks, concrete, wood, plastics, metals, and even specific hazardous waste, within 0.3 seconds based on a massive material sample database.
High-efficiency robotic arms or high-pressure air-blowing devices perform precise sorting, achieving a sorting rate of over 96%. Magnetic materials are automatically recovered via a self-unloading Magnetic separator.
The purified concrete and bricks enter a flexible, adjustable crushing system. Guoxin’s patented multi-Waste Shredder Machine design allows for layered crushing by adjusting parameters such as the closed-side discharge port (CSS), ensuring excellent aggregate particle shape (mostly cubic) and protecting the equipment from damage by uncrushable materials (such as accidentally residual metal).
The shredded materials undergo final screening and grading, producing clean recycled aggregates in various sizes, including 0-5mm, 5-10mm, and 10-31.5mm. The entire process is monitored by a central control system, enabling remote diagnosis and intelligent adjustment of key parameters.
3 Key Technological Innovations
Highly Adaptable AI Intelligent Sorting: The core of the system is Guoxin’s independently developed AI recognition algorithm. Unlike general solutions, our algorithm model is specifically enhanced to identify typical impurities in urban renewal projects, such as mortar adhering to old brick and tile surfaces, rotten wood, and mixed plastics, achieving a stable sorting accuracy of over 98%.
Low Energy Consumption and High-Efficiency Air Separation Technology: For lightweight debris, we employ a two-stage variable frequency air separation system. The first stage uses a large air volume to quickly separate extremely light materials such as plastic bags and foam; the second stage precisely controls the air speed and angle to separate heavier debris such as wood chips and shredded paper. While achieving a separation purity of over 95%, the overall power consumption is reduced by more than 30% compared to traditional equipment.
Modular and Mobile Design: Addressing the challenges of limited space and tight schedules in urban renewal projects, the GX-BD1000 can be designed as a fully modular unit or combined with mobile equipment (such as a tracked crushing and screening station). This design enables the production line to complete installation and commissioning in a short time (reducing the cycle by more than 40%), and allows for rapid relocation between construction sites as the project progresses, achieving “on-site treatment and utilization” of construction waste, greatly reducing transportation costs and environmental impact.
4. Application Scenarios and Output Value
Main application scenarios: Treatment of mixed construction and decoration waste generated from projects such as the protective renovation of historical districts, demolition and reconstruction of old residential areas, and upgrading of commercial areas. Particularly suitable for projects in core urban areas with high requirements for recycled aggregate quality and strong environmental sensitivity.
Resource Output: After processing by this system, over 90% of the incoming waste can be converted into resources.
Pure recycled aggregate can replace natural sand and gravel for the production of green building materials such as recycled permeable bricks, curbs, and concrete blocks. Separated metals are directly recycled; combustible debris can be sent to energy recovery facilities; and slag can be used for site backfilling or landscaping.
Project Economics: Taking a production line with a daily processing capacity of 1000 tons as an example, under effective operation, the sale of high-quality recycled aggregates and recyclables can directly generate considerable economic benefits, helping the project achieve a balance between environmental protection and profitability, and reducing dependence on government subsidies.
5. Comparative Analysis and Reasons for Selection
Within the processing capacity range of 600-1000 tons/day, the Guoxin GX-BD1000 system provides a superior solution for handling complex urban renewal waste.
Comparison with Traditional Fixed Production Lines: Traditional lines require large investments, have long construction periods, and are located on fixed sites. The modular/mobile options of the GX-BD1000 offer unprecedented flexibility, enabling rapid response to the dispersed and ever-changing needs of urban renewal projects, reducing initial investment and operational risks.
Comparison with Purely Mobile Crushing Stations: Purely mobile stations (such as the Metso Lokotrack series) offer high flexibility and excel at processing relatively pure demolition concrete. However, for decoration waste with extremely complex compositions, their sorting accuracy and depth are insufficient. The GX-BD1000 integrates more powerful pre-sorting and intelligent sorting units, ensuring the purity of the final aggregate and making it suitable for the end of the value chain, where product quality requirements are higher.
The core reason for choosing Guoxin Machinery: We provide more than just equipment; we provide scenario-based solutions. Guoxin Machinery has deep expertise in the field of construction waste recycling, possessing full-chain service capabilities from project planning and equipment customization to operational support.
Guoxin Machinery system is centered on “precise sorting to ensure output value,” ensuring that your investment yields maximum returns through high-quality recycled materials, truly achieving a balance between environmental and economic benefits in urban renewal.