Project Quick Facts

• Project Location: Qixian, Kaifeng City, Henan Province, China
• Installation Date: August 10, 2026
• Target Waste Stream: Aged Municipal Solid Waste (Stale Waste / Landfill Mining Material)
• Core Machinery Installed: Guoxin GX-TS-2200 Rotary Trommel Screening System, Heavy-Duty Vibrating Feeder, Air Classifier (Wind Sifting Unit), Multi-Tier Inclined Belt Conveyor Network, Centralized PLC Control Station
• Primary Outputs Recovered: High-purity humus soil (organic fraction), light combustible fraction (RDF feedstock), heavy inert aggregates (bricks/stones), and recyclable scrap metals.

1. Project Background & Remediation Objectives

Old municipal landfills across Kaifeng, Henan, face urgent environmental remediation requirements to recover land resources, prevent leachate contamination, and meet regional environmental standards.

Stale waste (decomposed landfill waste) poses unique processing challenges:

• High Moisture & Clumping: Years of underground decomposition leave waste heavily mixed with damp soil, clay, and compacted organic matter.
• Complex Debris Composition: The material stream contains fine humus soil, degraded plastic films, woven bags, construction rubble, and corroded iron fragments.
• High Screening Efficiency Required: Standard screening equipment clogs quickly when handling wet, aged landfill waste.

Henan Guoxin Group engineered a specialized, high-capacity Stale Waste Sorting Line tailored specifically for landfill mining and land reclamation operations.

2. Key Equipment & Engineering Highlights (On-Site Deployment)

The Kaifeng Qixian facility features an open-sided, sheltered steel structure housing Guoxin’s modular sorting machinery:

• GX-TS-2200 Rotary Trommel Screen Unit:

The core heavy-duty drum screen tumbles aged landfill waste under continuous rotation, breaking up soil-plastic clumps and screening out fine humus soil ($<30\text{ mm}$) at high throughput rates without screen blinding.

• High-Efficiency Pneumatic Air Classifier (Wind Sifter):

Equipped with multi-fan air circulation grids, the air separation system lifts out lightweight degraded plastics, films, and textiles from dense stones and bricks, creating clean RDF feedstock.

• Heavy-Duty Multi-Tier Conveyor Network:

Custom-engineered inclined belt conveyors link primary feeding, size classification, air separation, and multi-angle discharge stockpiles across optimized elevation drop clearances.

• Centralized PLC Control Center:

An outdoor-rated industrial PLC panel monitors motor drive speeds, VFD conveyor synchronization, and protection loops for seamless site operation.

3. Integrated Stale Waste Processing Workflow

[Aged Landfill Waste Input] ➔ [Heavy Feeder] ➔ [GX-TS-2200 Trommel Screen]
                                                         │
               ┌───────────────────────────────────────────┐
               ▼                                                                                 ▼
   [Humus Soil Fine Fraction]                                                          [Oversize Mixed Stream]
  (Landscaping / Cover Soil)                                                                      │
                                                                                                  ▼
                                                                                       [Air Classifier System]
                                                                                                  │
                                                                           ┌───────────┴───────┐
                                                                           ▼                                    ▼
                                                           [Light Combustibles (RDF)]              [Heavy Inert Aggregate / Metals]

4. Technical Specifications & Output Resource Allocation

5. Environmental & Economic Value

By implementing Guoxin’s stale waste sorting solution, the Kaifeng project achieves:

1. Land Recovery: Over 85% volumetric reduction of aged landfill waste, reclaiming valuable land for urban redevelopment.

2. Resource Transformation: Converts buried environmental liabilities into usable fuel (RDF), construction aggregates, and soil cover.

3. Zero Bottleneck Reliability: Engineered drop heights and VFD-controlled conveyor speeds eliminate material wrapping and organic clogging.

Planning a Landfill Mining or Stale Waste Remediation Project?

Guoxin Group provides complete EPC solutions for municipal solid waste (MSW), stale landfill waste, and construction waste sorting plants worldwide, including 3D plant layout simulation, equipment manufacturing, and full site commissioning.

• Direct Engineering Contact: Eve@guoxinmachinery.com