Dense Phase Pneumatic Conveying System

Pneuconveyor – Dense Phase Conveyor (Pressure Vessel) :-

The Pressure Vessel is the heart of dense conveying systems. Dense phase systems were introduced to overcome the limits of the transport components in the diluted phase and to be able to transport materials at very long distances through the use of high pressure compressed air (> 1Bar). The tank is therefore designed to withstand high pressures and can have a variable volume depending on the design flow rate. The Conveyor can be made of painted carbon steel, stainless steel AISI 304 or AISI 316. The interior and exterior finishing can be customized according to the needs of customers. All tanks can also be equipped with suitable components for installation in ATEX zones. The use of high pressure and low air flow allows you to push the material along the pipe to the destination at very low speeds (1-10 m/s), avoiding breakage of fragile materials, segregation of mixtures and wear of abrasive materials.

Application :

• Cement
• Fly ash
• Lime
• Sand
• Soda Ash and other similar materials that are abrasive heavy.

Key components :

• Transporter vessel
• Dome valve
• Pipeline
• Dust Collect (Bag Filter)
• Suction Blower

Why dense phase?

By definition, dense phase pneumatic conveying simply means using a small amount of air to move a large amount of bulk material In closely associated slugs through a conveying line, much like extruding. Unlike dilute phase conveying systems that typically use larger amounts of air to move relatively small amounts of material at high velocities in suspension, dense phase offers the enormous advantage of efficiently pushing a much denser concentration of bulk solids at relatively low velocities through a conveying line.

Operating principle: Dense phase pneumatic conveying pump also named conveying warehouse pump.

Sending system operating modes: materials in the storehouse are into storehouse pump under gravity, during this time, the discharge valve and the intake valve is closed while Pneumatic sealing valve, close calve and exhaust valve open, so ensure the material into the storehouse pump smoothly. Level indicator send electrical signals to PLC controller when the materials reach a certain position in pump, then PLC controller convert electrical signals into valve signal, at the same time, exhaust valve closed, sealing valve, closed valve, vent valve open, after the pressure in storehouse reach a certain extent, signal is sent to PLC controller by pressure transmitter, with that send to discharge valve after PLC convert it into electrical signals. Open the discharge valve, materials into pipe with low flow, high density by air flow. Period finished, pressure in storehouse pump and pipe drop to zero.

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 100kg/h upto 3t/h, where the conveying distance is up to 15m far and 10m high. Realized systems have up to 12 t/h capacity and work with conveying distances up to 80m far and 35m height.