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As global construction demands surge and natural sand reserves dwindle, the mining industry is seeking sustainable, high-performance alternatives to meet these demands. One promising solution is vermiculite sand (expanded mineral waste)—a byproduct of vermiculite processing that can be transformed into high-quality construction sand.
We specialize in mining equipment that helps operators maximize their resources. This blog guide will cover:
What is vermiculite sand, and why is it valuable?
Step-by-step vermiculite sand processing into construction-grade material
Complete equipment list for an efficient production line
By the end, you’ll understand how to repurpose mining waste into a profitable, eco-friendly construction material.
What Is Vermiculite Sand (Expanded Mineral Waste)?
Vermiculite sand is a lightweight, thermally exfoliated mineral derived from vermiculite ore waste. When heated between 900 °C and 1000 °C, vermiculite expands into an accordion-like structure, forming a porous, low-density material.
Key Properties of Vermiculite Sand
Ultra-Lightweight – Bulk density of 60–130 kg/m³ (vs. 1600 kg/m³ for river sand)
Sand Washer + Dewatering Screen: Rinses out dust and reduces moisture.
Why Washing Matters?
Improves cement bonding strength
Lowers chloride & sulfate content (prevents corrosion in concrete)
Step 4: Drying (If Needed)
Rotary Dryer: Bulk drying at 200–300°C
Target Moisture: <5% for stability
Step 5: Grading & Classification
Vibrating Screens: Segregate sand into different size fractions.
Air Classifier (for high-precision sizing): Ensures uniform particle distribution.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2015
Total Annual:
8500000-12000000
Employee Number:
>95
Ecer Certification:
Verified Supplier
Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.
Innovation, R&D, passionate and skilled team along...
Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.
Innovation, R&D, passionate and skilled team along...