Pneumatic Conveying Systems

Safe, Controlled, and Efficient Material Transfer Through Enclosed Pipelines

Pneumatic conveying systems play a critical role in safe, controlled, and efficient movement of powders, granules, and bulk solids throughout production. Each system is engineered according to material properties, conveying distance, plant layout, and capacity requirements.

ENIVO provides dense phase, dilute phase, vacuum, and screw pump pneumatic conveying solutions, each optimized for specific material behaviors and process conditions to minimize dust generation, wear, material loss, and maintenance demand.

Contents

Dense Phase Pneumatic Conveying

Dilute Phase Pneumatic Conveying

Vacuum Pneumatic Conveying

Pneumatic Conveying with Screw Pump

Dense Phase Pneumatic Conveying

Gentle, Low-Velocity Conveying for Fragile and Abrasive Materials

Dense phase pneumatic conveying systems are controlled conveying solutions based on transporting dry powders and granular materials through a pipeline at low velocity and with a high pressure differential. As the material moves through the line at a higher solids loading, the risk of product degradation is reduced and wear on the pipeline and bends can be kept at a lower level.

Operating Principle

During dense phase conveying, the material may move through the pipeline in plugs or in a wave-like flow pattern. A properly engineered system enables large quantities of material to be conveyed over long distances in a more controlled, gentler, and more efficient manner.

Design and System Features

Process Advantages

Gentle conveying for fragile products

Gentle Conveying: Reduced product degradation for fragile materials

Lower wear in pipelines and bends

Low Wear: Lower wear in pipelines and bends

Supports reduced segregation in blended products

Energy Efficient: Lower air consumption and energy use

Energy efficiency with lower air consumption

Long Distance: Suitable for long-distance and high-capacity conveying

Gas- and dust-tight system design

Suitable for long-distance and high-capacity conveying

Typical operating pressure: 1-2 barg

Application Areas

Fragile product conveying

Abrasive material transfer

Blended product lines requiring segregation control

Heavy-duty industrial applications

ENIVO engineers dense phase conveying systems for applications where product integrity, wear control, and long-distance transfer are critical process requirements.

Dilute Phase Pneumatic Conveying

Fast and Flexible Conveying for Free-Flowing Materials

Dilute phase pneumatic conveying systems are fast and flexible solutions based on conveying dry and free-flowing powder or granular materials in suspension through a pipeline by means of air. Operating on the principle of low pressure and high velocity, these systems offer an economical and efficient conveying method.

Operating Principle

A properly designed dilute phase conveying line helps prevent material from settling inside the pipeline, ensures a consistent product flow, and supports controlled feeding to downstream process equipment.

Design and System Features

Process Advantages

Flexible and easy-to-implement system architecture

Flexible Design: Easy-to-implement system architecture

Fast and continuous material transfer

Fast Transfer: Continuous and rapid material movement

Efficient operation with free-flowing powders and granules

Multi-Point: Single feed to multiple receiving points

Transfer from a single feed point to multiple receiving points

Easy Integration: Compatible with continuous or batch processes

Easy integration into continuous or batch-operated processes

Compatibility with in-line screening and similar equipment

Typical conveying distance: 50-200 m

Application Areas

Free-flowing powder transfer

Granule conveying in production lines

Multi-destination distribution

Batch and continuous process feeding

ENIVO designs dilute phase systems for economical and efficient transfer of free-flowing materials, optimizing air volume, pipeline geometry, and feeding equipment for each application.

Vacuum Pneumatic Conveying

Clean Product Intake with Dust-Free Operation

Vacuum pneumatic conveying systems enable powders and granular materials to be transferred from one or multiple pickup points to the target equipment through an enclosed pipeline by means of negative pressure. These systems stand out in applications where clean product intake, dust-free operation, and controlled feeding are required.

Operating Principle

Inside the vacuum receiver, the conveyed material is separated from the air stream, while the filtration and filter cleaning arrangement ensures stable system operation. Modular and compact construction offers easy integration and flexible installation in space-limited areas.

Design and System Features

Process Advantages

Collection from multiple pickup points to a single receiver

Multi-Point Collection: Multiple pickup points to a single receiver

Cleaner operating conditions with closed-line design

Dust-Free: Cleaner operating conditions with closed-line design

Supports reduced dust dispersion

Compact Design: Easy integration in space-limited areas

Controlled and reliable product transfer

Controlled Transfer: Reliable and controlled product feeding

Effective solution for short and medium distances

Easy integration into process lines

Typical conveying distance: 2-70 m

Application Areas

Multi-point product collection

Intermediate hopper feeding

Controlled transfer to process equipment

Sensitive product applications

ENIVO configures vacuum conveying systems for clean, dust-free material intake with hygienic design features, stainless steel options, and ATEX-compliant solutions.

Pneumatic Conveying with Screw Pump

Long-Distance Continuous Transfer for Fine Powders

Pneumatic conveying systems with screw pump are designed for the continuous and reliable transfer of dry, free-flowing, and finely ground powder materials through a pressurized conveying line. These systems stand out in applications requiring long-distance transfer, uninterrupted operation, and high operational reliability.

Operating Principle

The screw feeding mechanism delivers material into the conveying line continuously and controlled while minimizing abrasive effects. Its ability to operate at low conveying pressures significantly reduces energy consumption. Working pressure range of approximately -4 to 12 PSI and operating temperatures up to 450°F support reliable use under demanding conditions.

Design and System Features

Process Advantages

Long-distance conveying up to approximately 1,375 m

Ultra-Long Distance: Conveying up to approximately 1,375 m

Low wear and long service life

Low Wear: Minimized abrasive effects on fine materials

Continuous operation supporting uninterrupted process flow

Continuous Operation: Uninterrupted process flow support

Heavy-duty cast iron and steel construction

Energy Efficient: Low pressure operation reduces energy cost

Adaptable structure for different layouts and installation heights

Energy efficiency and lower total operating cost

Application Areas

Mill discharge lines

Inter-silo transfer

Dust collection system lines

Loading and unloading points

ENIVO engineers screw pump conveying systems for critical process stages requiring long-distance, continuous, and reliable powder transfer with heavy-duty construction and low maintenance cost.