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

The Intelligent Variable Inclination Vortex Anti-Blocking Machine is an intelligent mechanical solution designed to improve material flow and reduce blockage risks in silos and hoppers. Installed at the cone section of the silo, its variable-inclination vortex blades help prevent material arching, bridging, wall adhesion and unstable discharge for difficult-flowing bulk materials.
The Intelligent Variable Inclination Vortex Anti-Blocking Machine uses a proprietary multi-dimensional variable-inclination rotating vortex blade system. The vortex blades rotate 360° inside the silo while the silo wall remains stationary. During rotation, the blades mechanically remove material adhering to the silo wall while simultaneously assisting the flow of material away from the center of the silo.
By continuously changing the inclination angle and dropping points of the material, the machine transforms conventional central flow and dispersed flow into an overall vortex flow. This increases the effective material flow area and flow velocity, helping improve discharge performance, remove existing blockages and reduce the risk of recurring blockage.

(1)Material Bridging
(2)Silo Wall Adhesion
(3)Poor Discharge Flow
(4)Manual Cleaning Risks
Continuous Anti-Blocking Operation
Improved Material Flow
Reduced Blockage-Related Downtime
Intelligent Control Options
Customized Design
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
| Technical Parameters | MY-ZNWX-Ⅰ | MY-ZNWX-Ⅱ | MY-ZNWX-Ⅲ |
|---|---|---|---|
| Applicable Industry & Units | Coal-fired power units of 330 MW and below | 330 MW – 1000 MW coal-fired power units | Batching silos for ironmaking, sintering, pelletizing and cement industry (feeding capacity ≤ 120 t/h) |
| Applicable Material | Moisture (Mt) < 30%, Ash (Aar) < 50%; unlimited sludge, coal slime and coal types | Moisture (Mt) < 30%, Ash (Aar) < 50%; unlimited sludge, coal slime and coal types | Unlimited moisture; particulate materials with specific gravity ≤ 4.8 |
| Rated Output per Unit | 60 t/h | 120 t/h | 120 t/h |
| Noise Level (1 m) | < 65 dB | < 65 dB | < 65 dB |
| Upper Silo Interface Diameter | 1200 – 2000 mm | 1600 – 2200 mm | 1500 – 2000 mm |
| Lower Silo Interface Diameter | 300 – 1100 mm | 450 – 1200 mm | 450 – 1000 mm |
| Equipment Height (Vortex Cutter Length) | 2000 – 2500 mm | 2000 – 2500 mm | 1200 – 2000 mm |
| Connection Method | Upper and lower flange | Upper and lower flange | Upper and lower flange |
| Control Cabinet Protection | IP65 | IP65 | IP65 |
| Motor Specification | 380 V, IP65, Class F | 380 V, IP65, Class F | 380 V, IP65, Class F |
| Clearance (Cutter to Silo Wall) | ≤ 5 mm | ≤ 5 mm | ≤ 5 mm |
| Motor Power | 2.2 kW – 5.5 kW | 2.2 kW – 5.5 kW | 4 kW – 5.5 kW |
| Whole Machine Service Life | > 15 years | > 15 years | > 15 years |
For each project case, we deliver well‑tailored equipment solutions and complete supporting services with our professional industry experience.






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