The conversion of abandoned limestone quarries into sunken gardens presents unique opportunities for sustainable aggregate production. Modern crushing and sand-making lines can be integrated into such projects to repurpose extracted materials while creating architectural landmarks.
A typical 200-300TPH production line includes:
1. Primary Jaw Crusher (PE600×900)
– Feed opening: 600×900mm
– Capacity: 50-160t/h
2. Secondary Cone Crusher (HPT300)
– Max feed size: 230mm
– Discharge range: 6-30mm
3. Tertiary Impact Crusher (VSI1140)
– Throughput: 180-250t/h
– Sand yield: 30-50%
4. Vibrating Screen (3YK2460)
– Screening area: 7.2m²
– Layers: 3
The crushed limestone undergoes rigorous grading:
– 0-5mm (High-quality manufactured sand)
– 5-15mm (Concrete aggregate)
– 15-25mm (Road base material)
– >25mm (Recirculated for recrushing)
Q1: What dust control measures are recommended?
A: Wet suppression systems combined with bag filters achieve <20mg/m³ emission.
Q2: How to handle clay contamination?
A: Pre-screening with grizzly bars and log washers removes up to 95% impurities.
Q3: Typical equipment lifespan?
A: Wear parts last approximately:
– Jaw plates: 6-8 months
– Cone mantles: 4-6 months
– VSI rotors: 3,000 operational hours
Location: Guangxi, China
Challenge:
Convert operational quarry into tourist attraction while maintaining aggregate supply.
Solution:
Installed compact Z-series mobile plant producing:
– Garden construction materials (decorative aggregates)
– Commercial concrete sand
Achieved dual-purpose operation with noise levels below 65dB at boundary.
This approach demonstrates how thoughtful equipment selection can transform extraction sites into sustainable assets while meeting construction material demands.
