Dilute Phase Conveying System, Pressure : vacuum operated

Dilute Phase (Lean Phase) Pneumatic Conveying System can be used for Dry Powders and Granules. There is  a wide variety of Materials that can be conveyed with this system. Be it powder of any mesh or Granules of around 5 to 10 mm sizes. Any material that needs to be conveyed with Pneumatic Conveying System should be Dry and Free flowing in the first place. In some cases of free flowing powder, moisture content up to 15% can also be transferred by this system, It is not advisable to use it if the material has high moisture level or if it is sticky. 

Conveying systems operate on the principle that the solids will be suspended in the conveying line air stream. This is achieved by feeding material in controlled quantity into a air stream. Generally velocities are greater than 20mtr per second and material to air ratios are up to .10 to 1. Material conveyed will be separated from air stream through Cyclone & Bag filter.

Commonly Conveyed products : Products commonly conveyed in Dilute phase systems include Pharmaceutical Powder, speciality chemicals powders, flours, resins and compounds, ground feeds, and granular and pelletized products. In many cases, the product needs to be evaluated based on process needs to final system selection to ensure the desired results can be achieved.

pneuONVEYOR System Design :  Pressure, vacuum, combination vacuum/pressure and vacuum sequencing are the common types of Dilute phase systems. The Carrying gas is typically generated by a positive displacement blower with pressure capability ranging from 0.1 to 0.8 Kg/ Sq CM. Pressure systems generally use a rotary airlock as a feed device. A vacuum system simply needs a product flow control device such as a probe box or screw feeder, although rotary airlocks are commonly used.

Our different modular families of Vacuum Conveyors for the Pharma, Chemical and Food-Industry allow customized modifications of all conveyors regarding the individual application. Even critical materials can be conveyed safely and adapted conveyors can be used for hazardous applications like inside explosion areas or with highly toxic materials.

Most of our conveyors are used in applications with conveying capacities from 100 kg/h up to 3 t/h, where the conveying distance is up to 15 m far and 10 m high. Realized systems have up to 12 t/h capacity and work with conveying distances up to 80 m far and 35 m height.

MAJOR COMPONENETS OF THE SYSTEM

Feeder Rotary AirLock Valve:This Feeds the material into the conveying Line. It is most important component in the System. The size of this Rotary Airlock Valve is responsible for capacity limitation. It should be properly selected. Higher size will lead to chocking of the system. Smaller size will lead to reduced capacity of the system Pickup

Nozzle or Ventury:This is responsible for lining up the material into the conveying pipeline to be fluidized in the system. It is here that the material is fluidized and starts its journey.

Conveying Ducting:It is the main pipeline that conveys the material to the discharge point. Care should be taken to have shortest root during designing the layout.

Dust Collector:It separates the Fluidized material from air. The air separated is vented our from the Blower. It filters the air and material giving out clean air.

Discharge Rotary Airlock Valve:It discharges the material collected in the Dust Collector. Without this Rotary Airlock Valve system cannot run. It is installed below the Dust Collector.

Other Optional Equipment:

In place of a Dust Collector a cyclone separator can be used. It’s outlet will be dusty. Hence it cannot be used when powders are conveyed. In some places Suction Blowers are used to smooth the air flow. When material is directly Discharged into silo. the Discharge Rotary Airlock Valve is installed below silos. When Multiple Discharge Points are to be catered, Diverter valves are used. A control Panel is also need to control all the motors and have necessa