MÖLLER Pneumatic elevator

MÖLLER® Pneumatic Elevator

vertical pneumatic conveying

of powdery and fine-grained bulk materials.

If you want to transport bulk material safely and with low maintenance,

you’d make the right choice with the

MÖLLER ® Pneumatic Elevator from REEL.

KEY BENEFITS :

High reliability
Maintenance-free (no rotating parts)
Compact, space-saving design
Temperature resistant up to 300°C
Completely dust-free operation

MÖLLER ® Pneumatic Elevator- a real high-flyer Dizzying: 800 t/h more than 100 m vertical pneumatic conveying

The MÖLLER ® Pneumatic Elevator has been developed for vertical transportation of powdery and fine-grained bulk materials.
It is used world-wide for hundreds of applications in the cement-, lime-, gypsum industry, in metallurgical plants, in ash removal installations of power stations, in the aluminium industry and in all other industries where bulk materials have to be conveyed without any problems. Throughputs up to 800 t/h are possible. A conveying height of more than 100 m can be achieved.
The Pneumatic Elevator basically consists of the elevator housing (transmitter), the conveying line and the expansion separator (receiver). The communicating effect between the material column in the elevator housing and the flowing material-air mixture in the conveying line is utilised for material conveyance. When the elevator housing is filled, the fluidised bulk material is pressed towards the booster nozzle by the pressure of the material column, and the air jet escaping there conveys the bulk material into the pickup pipe of the conveying line arranged directly above the nozzle.


The material contained in the elevator housing seals off the plant towards the material inlet. The throughput increases with rising material level. The cylindrical part of the elevator housing is available in different heights depending on the bulk material to be conveyed and the conveying height.
The booster nozzle is centrally arranged in the bottom of the nozzle. Around it are fluidising areas to ensure material flow. A non-return valve prevents that bulk material enters into the air pipe.

At the upper end of the conveying line, material and air flows are separated by the expansion separator.

This economically pneumatic conveying system is particularly suitable for high capacities and strongly abrasive bulk materials

Vertical conveying up to 800 t/h of powdery and fine-grained bulk materials
Conveying height more than100 m
Maintenance-free (no rotating parts)
Compact, space-saving design
Low specific energy consumption
Temperature resistant up to 300°C
Completely dust-free operation
High reliability
Very low wear

How does the Pneumatic elevator work?

A Pneumatic elevator System consists of a feed bin, a pickup and conveying pipe, bulk material-air-separation at the end of the conveying pipe, and the necessary conveying and aeration air supplies.

Pneumatic elevator feeding with bulk material takes place from the top. The bulk material will be fluidized with air at the bottom of the Pneumatic elevator and sucked into the pickup pipe by the upstream oriented conveying air stream.

The primary air conveys the material upward through the conveying pipe. At the upper end of the conveying line, bulk material and airflows are separated – usually by an expansion separator (pre-separation), a cyclone, and a bag filter.

The actual conveying capacity in terms of the line (back) pressure, the bulk material column inside the Pneumatic elevator, and the pressure level of the conveying air supply are in balance with each other.

In operation, the Pneumatic elevator system is self-compensating. As the product feed rate and the corresponding conveying capacity increase or decrease, the bulk material level inside the Pneumatic elevator adjusts automatically. In this way, the Pneumatic elevator system matches the conveying rate to the incoming feed and compensates for any variations of the feed rate.

Inspection glasses in the cylinder help control the filling level, while a control circuit is enabled between the Pneumatic elevator filling level and the feeding dosing unit for fully automatic operation.

The Pneumatic elevator System is suitable for materials that can be fluidized by aeration without segregation, such as :

Cement
Raw meal
Alumina
Copper concentrate
Fly ash
Copper flue dust
Fluid coke
Catalyst
Limestone
Sand
Slag dust

MÖLLER ® Pneumatic Elevator- low maintenance, cost-efficient and high performance via the best pneumatic conveying system.

The REEL MÖLLER® Pneumatic Elevator does not use any mechanical or drive elements and is therefore not subject to wear to these elements like conventional vertical conveyors.
This means high availability at low specific energy consumption. The bottom part of the conveying line centrally arranged above the booster nozzle can be exchanged.
Inspection glasses are placed in the cylinder for control of the filling level. A control circuit is built up between the Airlift filling level and the feeding dosing unit for fully automatic operation.

If extremely abrasive materials are conveyed, the exchangeable pickup pipe will be made of particularly wear resisting material. The elevator can be equipped with fluidisation fabric for bulk material temperatures of up to 300°C. The material can be fed into the upper cylindrical part of the elevator housing vertically or horizontally. Should the bulk material contain large contaminants the pneumatic elevator can be equipped with a grating to remove these contaminants from the conveying process. When the plant is shut down, they can be removed through the manhole.

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