HNMY provides mechanical equipment for silo blockage removal, material flow assistance, coal chute blockage cleaning, and controlled bulk material discharge

The Rotary Silo Blockage Cleaning Machine is designed to mechanically remove existing blockages inside industrial silos and restore stable material discharge. It is suitable for severe material bridging, arching, compacted material, wall buildup and other blockage conditions that interrupt silo flow.
During storage and discharge, bulk materials may cause:
• Material bridging
• Wall buildup
• Poor discharge flow
• Material compaction
• Silo outlet blockage

Effective Blockage Removal
• bridging
• compacted material
• wall buildup
Reduce Manual Cleaning
• less labor requirement
• improved safety
• reduced downtime
Improve Material Discharge
• stable feeding
• continuous production
Customized Design
• silo diameter
• material characteristics
• installation conditions
This system is designed for silos handling high bulk density materials (≤4.8 t/m³) with extremely poor flowability, high viscosity and a tendency to form blockages.
✓ Iron ore powder silos in steel plants
✓ Limestone storage silos
✓ Sintering and pelletizing plant mixing silos
✓ Raw material storage silos
✓ Coal bunkers in coal-fired power plants
✓ Coal slime and sludge storage silos
It is especially suitable for high-density, low-flow-rate bulk material storage systems where material buildup, bridging, arching and wall adhesion frequently occur. The equipment helps maintain continuous material discharge, reduce manual cleaning operations and improve the reliability of bulk material handling systems.
• Coal
• Coal ash
• Cement raw materials
• Fly ash
• Mineral powder
• Limestone
• Sludge
• Other bulk solids
| Model | MY-XZQD-I | MY-XZQD-II | MY-XZQD-III |
|---|---|---|---|
| Applicable Units | Coal-fired power units of 330 MW and below | 330 MW – 1000 MW coal-fired power units | Large storage silos for thermal power, coking, coal mine, cement |
| Applicable Material Quality | Total moisture (Mt) < 30%, Ash (Aar) < 45% | Total moisture (Mt) < 30%, Ash (Aar) < 45% | Total moisture (Mt) < 30%, Ash (Aar) < 45% |
| Blending Ratio | Unlimited for sludge and coal slime | Unlimited for sludge and coal slime | Unlimited for sludge and coal slime |
| Rated Output per Unit | 50 t/h | 100 t/h | 100 – 600 t/h |
| Noise Level (1 m) | < 65 dB | < 65 dB | < 65 dB |
| Upper Silo Interface Diameter | 1000 – 1500 mm | 1500 – 2000 mm | 2000 – 3000 mm |
| Lower Silo Outlet Diameter | 450 – 660 mm | 660 – 1000 mm | 1000 – 2000 mm |
| Overall Equipment Height | 1300 – 1800 mm | 1500 – 2000 mm | 2000 – 3000 mm |
| Connection Method | Upper and lower flange bolt | Upper and lower flange bolt | Upper and lower flange bolt |
| Control Cabinet Protection | IP65 | IP65 | IP65 |
| Motor Specification | 380 V, IP65, Class F | 380 V, IP65, Class F | 380 V, IP65, Class F |
| Scraper to Silo Wall Clearance | ≤ 5 mm | ≤ 5 mm | ≤ 5 mm |
| Motor Power | 1.5 kW – 4 kW | 2 kW – 4 kW | 5.5 kW – 11 kW |
| Service Life | ≥ 30 years | ≥ 30 years | ≥ 30 years |
For each project case, we deliver well‑tailored equipment solutions and complete supporting services with our professional industry experience.






Looking for a blockage prevention solution?
Tell us about your application, and our engineers will recommend the most suitable equipment and provide a quotation within 24 hours.