Coarse Powder Vertical Mill

Coarse Powder Vertical Mill Introduction

Coarse Powder Vertical Mill is heavy-duty grinding equipment specially designed for materials with large particle size (≤120mm), high moisture (≤25%) and complex composition. With the integrated process of crushing, drying, grinding and classification, it directly converts bulk raw materials into uniform coarse powder efficiently. It serves as the core equipment for large-scale continuous industrial production in cement raw meal, industrial solid waste, metallurgical sintering and other fields.

Features & Advantages of Coarse Powder Vertical Mill

Strong Adaptability: Wide range of applications. Equipped with high-power main motor and heavy-duty reducer, it accepts large feed size (≤120mm) and directly processes materials with complex composition.

Robust & Durable: Heavy-duty wear-resistant design with thickened wear-resistant grinding table, grinding rollers and heavy pressurizing device. Solid structure and strong impact resistance.

Anti-blocking Performance: Static classification system forms a centrifugal force field via fixed guide vanes and blades for separation. Simple and reliable system effectively reduces material blockage and wear.

Powerful Drying Capacity: Enhanced heating capacity of hot blast stove. The fan delivers large air volume and high wind pressure, directly handling wet sticky materials with moisture content up to 25%.

Simple & Energy-saving: Adopts single-unit dust collection system with simplified process and reduced system resistance, cutting fan power consumption effectively. Its material utilization rate is far higher than ball mills.

Process Flow of Coarse Powder Vertical Mill

Material Bed Grinding

Raw materials meeting feed requirements (particle size ≤120mm, moisture ≤25%) are fed into the coarse powder vertical mill through conveying system. The transmission system drives the grinding table to rotate. Under centrifugal force, materials spread beneath grinding rollers, which compress and crush the material bed under hydraulic pressure.

Powerful Drying

High-temperature hot air introduced from the bottom penetrates the material bed, instantly evaporating moisture while crushing materials. Then the dried materials are carried upward by high-speed rising airflow.

Static Classification

Materials flow with airflow into the static classification system. Separation is realized by adjusting the flow guide device. Qualified coarse powder enters the collection system along with airflow. Oversize coarse particles are separated and fall back onto the grinding table for regrinding to form internal circulation.

Powder Collection & Dust Removal

Finally, qualified coarse powder enters the single-stage dust collection system (electrostatic precipitator or bag filter). After gas-solid separation, finished coarse powder is collected, and purified gas is discharged by exhaust fan.

Application Scenarios of Coarse Powder Vertical Mill

Technical Parameters of Coarse Powder Vertical Mill

Frequently Asked Questions of Coarse Powder Vertical Mill

What is the difference between Coarse Powder Vertical Mill and standard vertical mill?

Coarse Powder Vertical Mill is mainly used to produce coarse powder with low fineness requirements, while the standard vertical mill is designed for fine powder with uniform fineness and high added value.

Is the classification system of Coarse Powder Vertical Mill dynamic or static?

Coarse Powder Vertical Mill generally adopts static or inertial classification system. This design features simple structure, large throughput, good wear resistance and anti-blocking performance.

How to deal with blockage of Coarse Powder Vertical Mill?

Coarse Powder Vertical Mill is equipped with access door and material cleaning port. Blockage can be cleared through the cleaning port. During routine maintenance, regularly check material accumulation on the grinding table and air duct.