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

Intelligent Variable Inclination Vortex Anti-Blocking Machine for high-specific-gravity material silo blockage removal in metallurgy and coal-coking plant

Intelligent Variable Inclination Vortex Anti-Blocking Machine

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.

How Does the Vortex Anti-Blocking Machine Work?

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.

Working principle of intelligent silo anti-blocking machine for material flow improvement

What Silo Flow Problems Does the Vortex Anti-Blocking Machine Solve?

(1)Material Bridging

(2)Silo Wall Adhesion

(3)Poor Discharge Flow

(4)Manual Cleaning Risks

Key Features and Advantages

Continuous Anti-Blocking Operation

Improved Material Flow

Reduced Blockage-Related Downtime

Intelligent Control Options

Customized Design

Vortex Anti-Blocking Machine Applications

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.

Suitable Materials

• Coal

• Coal ash

• Cement raw materials

• Fly ash

• Mineral powder

• Limestone

• Sludge

• Other bulk solids

Technical Parameters

Technical ParametersMY-ZNWX-ⅠMY-ZNWX-ⅡMY-ZNWX-Ⅲ
Applicable Industry & UnitsCoal-fired power units of 330 MW and below330 MW – 1000 MW coal-fired power unitsBatching silos for ironmaking, sintering, pelletizing and cement industry (feeding capacity ≤ 120 t/h)
Applicable MaterialMoisture (Mt) < 30%, Ash (Aar) < 50%; unlimited sludge, coal slime and coal typesMoisture (Mt) < 30%, Ash (Aar) < 50%; unlimited sludge, coal slime and coal typesUnlimited moisture; particulate materials with specific gravity ≤ 4.8
Rated Output per Unit60 t/h120 t/h120 t/h
Noise Level (1 m)< 65 dB< 65 dB< 65 dB
Upper Silo Interface Diameter1200 – 2000 mm1600 – 2200 mm1500 – 2000 mm
Lower Silo Interface Diameter300 – 1100 mm450 – 1200 mm450 – 1000 mm
Equipment Height (Vortex Cutter Length)2000 – 2500 mm2000 – 2500 mm1200 – 2000 mm
Connection MethodUpper and lower flangeUpper and lower flangeUpper and lower flange
Control Cabinet ProtectionIP65IP65IP65
Motor Specification380 V, IP65, Class F380 V, IP65, Class F380 V, IP65, Class F
Clearance (Cutter to Silo Wall)≤ 5 mm≤ 5 mm≤ 5 mm
Motor Power2.2 kW – 5.5 kW2.2 kW – 5.5 kW4 kW – 5.5 kW
Whole Machine Service Life> 15 years> 15 years> 15 years

FAQ

What causes silo blockage?
Silo blockage is usually caused by material bridging, moisture, adhesion and poor flow characteristics.
How does a silo anti‑blocking machine work?
Our vortex‑blade silo anti‑blocking machine adopts 360° rotary variable‑inclination blades to scrape wall‑adhered material, break bridging & ratholing, and transform central material flow into vortex flow to realize continuous smooth discharging.
What industries use this equipment?
It is widely applied in thermal power plants, cement plants, steel mills, chemical plants and mining for fly ash, coal powder, cement raw meal and other sticky bulk solids.
Can the equipment be customized?
Yes. We support custom dimensions, power, control modes (manual / servo detection / intelligent timing module) to match your silo parameters and working conditions.

Construction Cases

For each project case, we deliver well‑tailored equipment solutions and complete supporting services with our professional industry experience.

Mingyu on-site construction photo 1
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