Classification (Separators)

Industrial Classification and Separator Solutions

Separators play a critical role in mineral processing by achieving the target particle size distribution, controlling the separation of fine and coarse fractions, and maintaining consistent product quality.

ENIVO provides dynamic type, air classifying, and turbo type separator solutions tailored to different product characteristics and separation accuracy requirements, developing efficient classification systems that can operate either integrated with the grinding circuit or as standalone units.

Contents

Dynamic Separators

Air Classifier Separators

Turbo Separators

Dynamic Separators

Controlled Classification Solutions Integrated with Grinding Circuits

Dynamic type separators are classification systems designed especially for operation in combination with grinding circuits, allowing product fineness to be adjusted in a controlled manner. Thanks to their dynamic operating principle, sharper separation can be achieved and coarse fractions can be controlled within the system. This helps maintain a more consistent target product size and improves overall process efficiency.

Operating Principle

Dynamic type separators operate on the principle of a rotating rotor or cage working together with airflow. Material is separated into fine and coarse fractions by the combined effect of centrifugal force generated by the rotor and air drag force.

The cut point is controlled by adjusting rotor speed. Coarse fraction is returned to the grinding circuit while the fine product is carried by airflow for collection. This closed-circuit configuration significantly improves process efficiency.

Process Advantages

Sharp Separation Performance: High separation accuracy between fine and coarse fractions is achieved through the dynamic operating principle.

Grinding Circuit Compatibility: Integrated operation with closed-circuit grinding systems improves process efficiency.

Flexible Product Target: Rotor speed can be changed to switch quickly between different product finenesses.

Consistent Product Quality: Stable and consistent product fineness during continuous operation.

Wide Capacity Range: Feed capacity of approximately 7-70 t/h accommodates different process requirements.

Design and System Features

Application Areas

Rotating rotor/cage design

Cement grinding circuit classification

Adjustable rotor speed and cut point

Limestone and calcium carbonate classification

Typical product size d90: 45-150 µm

Mineral filler production

Motor power approximately 15+22 kW - 22+37 kW

Construction chemical raw material preparation

Closed-circuit integration with grinding systems

Dry powder product classification

Models for different capacity requirements

Industrial mineral processing

Dust collection and filtration system integration

ENIVO positions dynamic type separators as an integrated process component within the grinding circuit. Material properties, target fineness, capacity, and grinding system parameters are evaluated together to determine the most suitable separator type and configuration.

Air Classifier Separators

Precise and Controlled Separation Solutions for Fine Dry Classification

Air classifying separators are developed for applications requiring finer dry classification. With capacity characteristics that vary according to fan diameter, airflow rate, and product size, they stand out in processes where more controlled fine product separation is required. They help ensure precise control of product fineness in fine mineral applications.

Operating Principle

Air classifying separators separate particles by size using the balance between airflow and gravity/centrifugal forces. Fine particles are carried by the airflow while coarse particles are separated by gravitational effect.

Precise classification at different product sizes is achievable by adjusting fan diameter (Ø500-Ø1600 mm) and airflow rate (7,000-65,000 m³/h). Typical product size is in the range of d97: 20-90 µm.

Process Advantages

Precise Fine Product Control: Air-based classification enables precise control of fine product size.

Scalable Operation: Adapts to different scales, from small lines to high-capacity plants.

Dry Classification Advantage: Effective classification in dry conditions without requiring drying.

Low Energy Consumption: Efficient energy utilization through optimized airflow design.

Flexible Configuration: Wide application range with different fan diameter and airflow options.

Standalone or Integrated Operation: Can be used together with the grinding circuit or independently.

Design and System Features

Application Areas

Fan diameter approximately Ø500-Ø1600 mm

Calcium carbonate fine classification

Airflow rate approximately 7,000-65,000 m³/h

Mineral filler and pigment production

Motor power approximately 15-110 kW

Chemical powder classification

Typical product size d97: 20-90 µm

Construction chemical raw material classification

Feed capacity approximately 1.5-80 t/h

Fine mineral powder production

Adjustable classification parameters

Ceramic and glass raw material classification

Dust collection and filtration system integration

Calcined gypsum separation

ENIVO positions air classifying separators as a strong process component in applications requiring precise particle size control. Product characteristics, target fineness, capacity, and airflow requirements are analyzed together to determine the optimal fan and system configuration.

Turbo Separators

High-Precision Solutions for Fine and Ultra-Fine Dry Classification

Turbo type separators are developed for fine and ultra-fine dry classification applications requiring lower cut points and higher separation accuracy. The combined action of rotor and airflow provides more stable cut points and more precise classification in very fine products. They offer an effective solution especially for the classification of fine mineral powders, filler products, and dry processes requiring tight particle size control.

Operating Principle

Turbo type separators operate on the principle of a high-speed rotor working together with optimized airflow. The high centrifugal force generated by the rotor enables more precise separation of fine particles.

Cut point can be precisely controlled in the range of d97: 5-45 µm through fan diameter (Ø400-Ø650 mm), airflow rate (4,500-12,000 m³/h), and rotor speed parameters.

Process Advantages

Ultra-Fine Product Separation: Ultra-fine classification capability in the d97: 5-45 µm range.

High Separation Accuracy: Sharp and stable cut point achieved through rotor and airflow synergy.

Specialized Low-Capacity Applications: Suitable structure for precision applications in the 0.8-15 t/h range.

Stable Ultra-Fine Performance: Consistent and stable ultra-fine product quality during continuous operation.

Compact and Efficient Structure: High classification performance within a small footprint.

Design and System Features

Application Areas

High-speed rotor design

Ultra-fine mineral powder classification

Fan diameter approximately Ø400-Ø650 mm

High-precision filler production

Airflow rate approximately 4,500-12,000 m³/h

Pharmaceutical and food industry fine powder classification

Motor power approximately 11-37 kW

Pigment and paint raw material classification

Typical product size d97: 5-45 µm

Specialty chemical powder classification

Feed capacity approximately 0.8-15 t/h

Nano and micron level product separation

Precise cut point control

ENIVO positions turbo type separators as the most advanced classification solution in applications requiring ultra-fine product and high separation accuracy. Product properties, target cut point, capacity, and quality requirements are analyzed together to determine the optimal rotor, fan, and system parameters.