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Filter plant uses Brevini hybrid gearboxes

By Brevini on

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A filter plant on the Scunthorpe Corus steelworks is using hybrid-design gearboxes combining planetary and helical gear technology to open and close the doors on its iron desulphurisation process.

The installation is being used to capture the fumes created during the desulphurisation process and has been built in order to improve the plant’s environmental performance.

The door drives needed to be compact, strong, durable, and able to provide high-torque output and low-energy input.

As well as reducing dust emissions, the new technology aimed to create a more pleasant working environment for employees and helped to speed up the steelmaking process.

Doors have been designed that close to contain the fumes during the process while the extraction system draws them away.

Brevini designed a solution that met all the application requirements using its Posiplan range of planetary/helical-hybrid gearboxes.

The Posiplan hybrid gearboxes combine the efficiency of low-weight, high-reduction ratios of planetary gear stages on the input side with the higher capacity, strength and durability of bevel helical gears on the output – suitable for medium to large sized industrial applications.

The input end employs planetary stages where higher speed and compactness are an advantage, while the output uses a helical stage as it is slower and has higher torque.

Brevini supplied four Posiplan gearboxes for the Filter Plant project, each of which have a reduction ratio 2813.5:1 and are fitted with a 1.5 kW motor.

This provides an output torque of 22,000Nm and a speed of 0.5rpm.

The gearboxes are shaft mounted, making them suitable for applications that require 90deg operation or survival in harsh environments.

The gearboxes use labyrinth sealing technology and high-performance bearings.

Brevini

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