Pneumatic transport uses air, either by pressure or vacuum, to transport a variety of products and raw materials, including powdered, granular, or solid materials.
There are different types and forms (phases) of pneumatic transport, depending on the characteristics of each product being transported.
The different types can be pressure-driven or vacuum-driven, and in dilute or dense phases. Within these types and phases, there are different variants.
Pneumatic transport is one of the most advanced and efficient solutions for handling bulk solid raw materials, especially when automated, fast, and versatile systems are required. This type of transport uses compressed air to move materials from a source point to their destination, through pipes or enclosed ducts. Thanks to its flexibility and ability to adapt to different types of materials and distances, pneumatic transport is ideal for industries handling powder, granules, pellets, and more.
There are different configurations of pneumatic transport, which vary depending on the phase in which the material is transported and how the airflow is generated. Below, we explain the main types of pneumatic transport and their characteristics:
Pressure-driven pneumatic transport is one of the most common systems and relies on the use of compressed air to push raw materials through a closed duct. This type of transport can be carried out in three phases, each suited to different materials and operating conditions.
Dilute Phase: In this type of transport, the material is carried suspended in a high-speed airflow, allowing for the movement of material quantities without the risk of damaging the product. It is ideal for lightweight and delicate materials that do not easily break down. This phase is the most commonly used when efficient transport over short and medium distances is required without generating high pressures.
Semi-dense Phase: In the semi-dense phase, the material flows through the air at a medium speed, providing greater control over the flow and density of the product within the duct. This type of transport is suitable for slightly heavier materials and for short to medium distances, maintaining a balance between efficiency and material protection.
Dense Phase: In the dense phase, the material moves through the ducts in a dense mixture, with lower air velocity and a higher material-to-air ratio. This type of transport is ideal for heavy materials, such as grains, minerals, or powders, and is used when efficient handling of large volumes is required.
Vacuum pneumatic transport works by creating a negative pressure (vacuum) within a system of ducts, which draws bulk raw materials from a loading point to a discharge point. This system is useful when transporting materials with minimal risk of dispersion or contamination, as the particles remain confined within the closed system. Like pressure-driven transport, it can operate in three phases.
Dilute Phase: In the vacuum dilute phase, the material is transported through the ducts suspended in the air, similar to pressure-driven dilute phase transport, but with the advantage of being under negative pressure. This system is ideal for fine or lightweight materials that require gentle and efficient handling.
Semi-dense Phase: In the vacuum semi-dense phase, the material moves through the system at a moderate speed, with a higher concentration in the air. This system allows for more controlled handling of materials with medium density, such as certain types of powder or granular products that need to be transported more efficiently and less abrasively.
Dense Phase: Vacuum pneumatic transport in the dense phase is suitable for handling large volumes of heavy or abrasive materials, such as fine powders or granules. The negative pressure in this case helps move the material over short to medium distances with a higher concentration in the air, ensuring that the flow remains constant and efficient without damaging the material.
Dense phase pneumatic transport is often enhanced by the use of boosters. These devices increase the pressure and airflow speed, facilitating the movement of heavier and more difficult bulk materials, especially over long distances or when a denser load is required within the ducts. Boosters are essential in applications where the material has a high density, and the traditional system would not be sufficient to maintain an efficient and constant flow.
By adding a booster to the system, it ensures that the material flows without interruptions, even when transporting large volumes or heavy materials. This solution improves the overall efficiency of the system, increasing the transport capacity and reducing the risk of blockages or material build-up in the duct system.
Advantages of Pneumatic Transport of Solid Raw Materials
Flexibility and Adaptability: The pneumatic system adapts to a wide range of materials, from the lightest and most delicate to the heaviest and most abrasive.
Efficiency and Control: It allows for fast and efficient transport over long distances, maintaining control over the flow and speed of the material in each phase.
Minimisation of Contamination: Vacuum pneumatic transport minimises the risk of particle dispersion and environmental contamination.
Reduction of Operating Costs: By implementing boosters and advanced systems, transport capacity is improved, reducing the time and costs associated with handling and transporting raw materials.
Customised Solutions for Your Industry
In our company, we offer customised pneumatic transport solutions to meet the specific needs of your operation, regardless of the type of material you handle. From the design and installation of pneumatic systems to the maintenance and optimisation of equipment, we are committed to providing you with efficient, safe solutions tailored to your requirements.
Why Choose Us?
Advanced Technology: State-of-the-art pneumatic equipment to ensure efficient and safe transport.
Adaptability: Systems designed for different transport phases and types of bulk materials.
Operational Efficiency: Solutions that optimise time and costs, improving productivity.
Commitment to Safety: Compliance with all industrial safety regulations to provide a safe working environment.
Contact us to learn how pneumatic transport can improve the handling of your bulk solid raw materials, tailored to the characteristics of your operation. We will be happy to provide you with a customised and efficient solution.
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