Dilute Phase (Positive pressure conveying)

UV-ZYXX
Dilute phase conveying systems are designed to handle non-abrasive, free-flowing materials efficiently. They operate by suspending the material in a high-velocity air stream, allowing it to flow easily through the conveying line. This method is particularly suitable for materials with low bulk density that require gentle handling during transportation

Dilute Phase (Positive pressure conveying) Introduction

dilute phase pneumatic conveying from tank with level control.png - Dilute Phase (Positive pressure conveying)

In dilute phase positive pressure conveying, the material to be transported is suspended in a high-velocity air stream, allowing it to flow easily through the conveying line. This method is ideal for handling materials that are free-flowing and non-abrasive. The positive pressure helps push the material along the pipeline, ensuring efficient and reliable transportation. By carefully controlling the air pressure and velocity, operators can prevent material degradation and ensure gentle handling throughout the conveying process. Dilute phase positive pressure conveying is a versatile and effective solution for industries requiring precise and controlled material transport.

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Technical Specs

Description

Dilute phase pneumatic conveying, also known as gas-solid conveying, is an efficient technology used to transport powder, granular, and granular materials from one location to another. This method utilizes a gas flow, typically air or a gas-liquid mixture, to suspend and transport particulate materials through an enclosed pipeline. Dilute phase conveying is commonly divided into positive pressure and vacuum systems. Positive pressure conveying uses low-pressure air to convey materials efficiently, making it suitable for transporting materials from a single source to multiple destinations. On the other hand, vacuum conveying is ideal for materials that tend to pack or compress under pressure and is often used for toxic materials that require containment. Both systems offer minimal headroom requirements, simple operation, and are commonly used for non-abrasive, non-fragile materials with low bulk density. Dilute phase pneumatic conveying systems are versatile solutions that provide economic efficiency, flexibility in handling various product-flow characteristics, and gentle material handling capabilities, making them a preferred choice for industries requiring precise and controlled material transport.

Function

Power Source:

  • Utilization of Roots blowers to generate the necessary air pressure for conveying materials efficiently.

2. Conveying Distance:

  • Capable of transporting materials over distances ranging from 100 to 300 meters, providing flexibility in material transport.

3. Multi-Point Feeding and Discharging:

  • Enables the system to handle multiple feeding points and discharge locations, enhancing operational versatility.

4. Conveying Equipment:

  • Components such as fans, air rotary valves, accelerators, silos, and dust collectors work together to facilitate the conveying process.

5. Air Rotary Valve:

  • Functions include uniform feeding, air locking, and transferring materials to the low-pressure accelerated conveying system.

6. Powder Conveying Pump:

  • Utilizes a specially designed nozzle to mix powdery material with airflow before transporting it into the conveying pipe.

7. Material Transport:

  • Utilizes strong airflow from the fan and pressure differentials within the pipeline to propel materials to their destination efficiently.

8. Conveying Process Completion:

  • The entire material conveying process is successfully executed through a combination of equipment and airflow dynamics.    

Features

  • Fans: Provide the necessary airflow to suspend and transport materials through the conveying system efficiently.
  • Air Rotary Valves: Facilitate uniform feeding, air locking, and transfer of materials to the accelerated conveying system.
  • Accelerators: Assist in maintaining high-speed material flow within the conveying pipeline.
  • Silos: Serve as storage units for materials before they are conveyed, ensuring a continuous supply for the system.
  • Dust Collectors: Capture and remove dust particles generated during the conveying process, maintaining a clean and safe working environment.  

Benefits

 

  • Dilute phase conveying allows for rapid material transport, enhancing operational efficiency and throughput 
  • Implementing dilute phase conveying systems is cost-effective in terms of initial investment, making it an economical choice for material transportation
  • Dilute phase systems can successfully convey a broad spectrum of materials, offering versatility in handling various product types
  • The equipment used in dilute phase conveying systems is typically compact, optimizing space utilization in industrial settings
  • Compared to dense phase systems, dilute phase conveying minimizes material degradation due to lower conveying velocities, preserving material integrity during transport
  • Dilute phase conveying systems are energy-efficient, contributing to reduced operating costs and environmental impact
  • Dilute phase systems are relatively easy to install, operate, and maintain, ensuring smooth operation with minimal downtime
  • Dilute phase conveying is a flexible solution that can be tailored to suit specific material characteristics and process requirements, providing adaptability in various industrial applications

Model And Specfications

Model:

  • Dilute phase conveying systems are designed to transport materials in suspension within a high-velocity air stream, ensuring efficient material transfer from one location to another

Specifications:

  • Conveying Velocity: Typically operates at velocities ranging from 3,200 to 8,000 feet per minute, ensuring rapid material transport
  • Operating Pressures: In the range of 5-12 PSIG for positive pressure systems or negative pressures of 4-12” Hg for vacuum systems
  • Air to Solids Loading Ratios: Typically greater than 2.0, indicating the efficiency of material transport in dilute phase conveying
  • Material Compatibility: Dilute phase systems can effectively convey a wide range of materials including flour, resins, specialty chemicals, ground feeds, and granular products
  • Pipeline Diameter: Calculated based on material bulk density, conveying velocity, and air flow rate, with a recommended ratio of pipeline diameter to material particle size of 20:1
  • Pressure Drop: A critical parameter affecting conveying velocity and system efficiency, calculated based on the length of the pipeline and material characteristics
  • Air Velocity: Maintained at levels high enough to keep materials in suspension but low enough to prevent material settling, ensuring efficient transport
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Options

Easy conveyor line routing

Since conveyor lines can be routed vertically and in any horizontal direction, over short or long distances, through small holes in walls or ceilings, UV PNEUMATI-CON systems are easy to integrate into production environments in which process equipment and other obstacles often exist, while consuming minimal floor space.

Wide capacity range

With a PNEUMATI-CON conveyor, capacity can range from several pounds to tens of tons per hour, feeding any destination from small packaging lines to silos and railcars. Moreover, excessive fluctuations in the feed rate — resulting in overloading or underloading — will not damage the system.

Mobile and custom configurations

Self-contained UV PNEUMATI-CON conveying systems complete with feed hopper and/or pick-up wand, blower unit, filter receiver and control package, are available pre-engineered and configured on caster-mounted frames for in-plant mobility.

Diversity of products handled by one conveyor

Powders having wide ranging bulk densities, as well as flakes, pellets, capsules, tablets and other friable materials, can be handled by a single Flexicon pneumatic conveyor, providing the flexibility needed to transport multiple ingredients

Designed, constructed and finished to industrial and sanitary standards

PNEUMATI-CON conveying systems are available in carbon steel with durable industrial finishes, or stainless steel finished to standards required for industrial, food, dairy and pharmaceutical applications. Available upgrades include quick-access and quick-disconnect fitments.

Total evacuation

PNEUMATI-CON systems fully evacuate the vessel being discharged and the conveyor line itself, minimizing cross-contamination of multi-ingredient systems. Complete transfer of material also ensures that individual and consolidated batch ingredients reach their destinations accurately by weight, maximizing quality while minimizing waste.

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Accessories

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Dilute Phase (Positive pressure conveying) Solutions

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