Dense phase pneumatic conveying is a low-velocity, high-pressure method for moving dry powders and granules through pipes. It pushes material as dense slugs, using less air than dilute phase systems. This protects fragile products, reduces pipe wear, and lowers energy consumption. It is widely used in manufacturing, power, cement, chemical, food, and pharmaceutical industries.

We design and manufacture complete dense phase pneumatic conveying systems for powders, pellets, and bulk solids. Our equipment handles long distances and high capacities while maintaining product quality. Each solution includes a pressure vessel, air/nitrogen supply, pipe routing, boosters, dust collection, and a PLC control system. Systems are customized for your material and plant layout.

In operation, material is loaded into a pressure vessel and pressurized with compressed air or nitrogen. The powder fluidizes and enters the conveying line as a plug. Booster valves along the line inject small pulses of air to keep the plug moving and prevent settling. At the destination, a receiver and filter separate the conveyed material from the gas. Dense phase design permits low conveying velocities with a high solids-to-air ratio, enabling gentle and reliable transport over long distances.

Key components of a dense phase conveying system include a feed hopper, pressure vessel, valves, compressor or nitrogen source, boosters, pipeline, receiver, dust filter, and control panel. Wear-resistant pipes and bends are available for highly abrasive materials. The PLC-based control system monitors pressure, flow, and level to automate the entire conveying process. This reduces labor and ensures stable operation.

Dense phase pneumatic conveying provides less product breakage, lower pipe wear, lower air consumption, and dust-free transport. Because the material moves as dense plugs, it can handle fragile granules and abrasive powders with minimal degradation. It also supports high temperatures and long distances. The enclosed system prevents product contamination and improves workplace safety. These benefits make dense phase systems ideal for challenging powders and high-value materials.

Dense phase systems can be built as positive pressure, vacuum, or combined units. Positive pressure is suitable for high-capacity, long-distance transfer. Vacuum conveying safely gathers material from several feed points. Nitrogen systems provide inert conveying for explosive or reactive powders. This flexibility allows a single system to feed multiple mixers, reactors, or silos.

Dense phase conveying equipment is used for fly ash, cement, lime, alumina, mineral powders, plastic pellets, food ingredients, and pharmaceuticals. It is especially valuable for abrasive materials that would quickly wear out mechanical conveyors. It also handles heat-sensitive or easily broken products without quality loss. From power plants to battery material factories, dense phase conveying improves efficiency and protects product value.

The price of a dense phase pneumatic conveying system depends on capacity, distance, material properties, pipe diameter, degree of automation, and installation complexity. We provide custom engineering, material testing, installation guidance, and after-sales support. After reviewing your requested capacity and material data, we offer a clear quotation with recommended equipment. Contact us to get the best solution for your conveying requirements.