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Pressure Conveying Systems

Pressure Pneumatic Conveying  Systems

The design of a pneumatic conveying system takes into account many different factors including the material characteristics, the overall system requirements with respect to capacity, distance, routing, and future expansion. It is important to understand your goals for your conveying system in regard to transfer rates, automation, power consumption, and other criteria. LBIS can help you develop your complete pneumatic conveying system achieving all your project requirements.

Dense Phase

Dense phase conveying refers to a pneumatic conveying system where the mass ratio of solids to conveying air is high. Solids flow in the pipeline can be either as a moving fluidized bed or a discrete plug. Dense phase conveying systems can provide both capital and operating cost advantages through reduced pipeline size and lower power consumption than a dilute phase system for the same solids flow rate. Some materials, such as fly ash, are ideally suited to dense phase conveying. Lab testing will determine the suitability of dense phase conveying for your material.

LBIS Dense Phase Transfer Vessels feature fluidizing bottom construction and transfer air management to efficiently feed high performing dense phase conveying systems. The vessels are built with fully aerated bottoms and side or top discharge nozzles with capacities ranging from 65 to 250 cubic feet. LBIS Dense Phase Transfer Vessels serve conveying systems which transfer material more than one mile at 300 tons per hour. These systems operate with less transfer air, smaller pipe size and lower velocities than traditional systems.

Dilute Phase

Dilute phase conveying refers to a pneumatic conveying system where the mass ratio of solids to conveying air is low. Solids flow in the pipeline is suspended in the conveying air. Higher air velocities are required to keep the solids in suspension. Dilute phase conveying is usually required for granular, non-fluidizable materials. Lab testing will determine the suitability of dilute phase conveying for your material.

LBIS Dilute Phase Transfer Vessels utilize bottom discharge with regulated dry air pad fluidization on the discharge cone to efficiently feed conveying systems from the outlets of vacuum collectors, silos, and hoppers.

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