Coal gangue often contains pyrite and other sulfur-bearing minerals. Through crushing and beneficiation, sulfur concentrate can be extracted, achieving resource utilization and reducing sulfur emissions. However, coal gangue has high moisture content (25-30%), contains large amounts of clay fines, and is abrasive. Traditional hammer crushers and impact crushers suffer from clogging, rapid wear, and severe over-crushing, resulting in low beneficiation recovery rates.
Double-Toothed Roll Crusher – The “More Crushing, Less Grinding” Solution
Coal Gangue
Huashengming double-toothed roll crusher adopts low-speed high-torque shearing and extrusion crushing instead of high-speed impact, effectively solving the problems of traditional equipment and providing an efficient path for sulfur concentrate extraction.
Why Choose Huashengming Double-Toothed Roll Crusher?
01. Screen‑less Design, Zero Clogging
Crushing wet, sticky coal gangue requires equipment that simply will not plug. The double-toothed roll crusher features a screen‑less design with no grate bars to blind. The specially spaced, self‑cleaning tooth geometry tears and shears the material, while wet fines fall away naturally. Even at 30% moisture content, the crushing chamber stays clear, ensuring continuous and stable operation of the production line and providing a reliable feed for subsequent sulfur concentrate extraction.
02. Extremely Low Over‑Crushing Rate, Protecting Sulfide Mineral Particle Size
Sulfur concentrate extraction has strict requirements on particle size distribution – over‑fine particles are difficult to recover effectively by gravity separation or flotation, and they also increase reagent consumption. The double-toothed roll crusher employs selective crushing with uniform force application, resulting in an extremely low over‑crushing rate. This effectively preserves the original particle size of pyrite and other sulfide minerals, creating favorable conditions for downstream beneficiation and significantly improving sulfur concentrate recovery.
03. Wear‑Resistant Toothed Rollers with Long Service Life
Coal gangue often contains hard rock inclusions that place high demands on wear parts. The double-toothed roll crusher features rollers made of high‑chromium alloy wear‑resistant material, with individually replaceable tooth segments – no need to remove the entire roll assembly. Compared with traditional crushers, roller service life is extended by 3 to 5 times, dramatically reducing maintenance costs and downtime.
Coal gangue crushing site for sulfur concentrate extraction
04. Hydraulic Overload Protection for Safe and Reliable Operation
Tramp iron or other uncrushable objects are inevitably mixed in coal gangue. The intelligent hydraulic system detects pressure anomalies and instantly expands the roll gap to discharge uncrushable material, then automatically resets – without stopping the machine. This effectively protects core components from damage, ensuring production continuity and equipment safety.
Recommended 2PGC Series Configurations for Coal Gangue Sulfur Concentrate Extraction
| Model | Roll Diam. (mm) | Roll Width (mm) | Max Feed (mm) | Capacity (t/h) | Power (kW) |
|---|---|---|---|---|---|
| 2PGY750×500 | φ750 | 500 | ≤40 | 20 – 30 | 2×(22-30) |
| 2PGY800×600 | φ800 | 600 | ≤40 | 30 – 40 | 2×(30-37) |
| 2PGY800×800 | φ800 | 800 | ≤40 | 40 – 50 | 2×(37-45) |
| 2PGY1000×800 | φ1000 | 800 | ≤40 | 50 – 80 | 2×(45-55) |
| 2PGY1000×1000 | φ1000 | 1000 | ≤60 | 80 – 100 | 2×(75-90) |
| 2PGY1200×1000 | φ1200 | 1000 | ≤80 | 100 – 120 | 2×(75-132) |
| 2PGY1500×1200 | φ1500 | 1200 | ≤120 | 150 – 200 | 2×(132-160) |
| 2PGY1800×1000 | φ1800 | 1000 | ≤100 | 250 – 300 | 2×(250-315) |
| 2PGY2000×1200 | φ2000 | 1200 | ≤120 | 300 – 400 | 2×(315-355) |
