Energy-efficient paper drying

To offer producers practical help in reducing paper producers costs, Deublin and Parsons Reiss are holding a series of nationwide seminars entitled; "Energy-efficient paper drying"

With energy expenditure accounting for up to 25 per cent of total manufacturing costs, pulp and paper producers have always had a strong incentive to improve energy efficiency: further motivation being provided by the recent increases in energy costs, coupled with the Climate Change Levy.

Whilst it is an energy-intensive industry, pulp and paper producers have made significant progress in the past decade.

Primary energy consumption has been reduced by 16 per cent and specific electricity consumption is down by 11 per cent.

The average energy use per tonne of product is around 16 GJ - some two-thirds less than the 24 GJ required in 1990.

Substantial improvements like these are the result of investment in combined heat and power (CHP) or co-generation plants, heat exchangers, and the introduction of drying hoods as well as improved process technologies.

However, with the drying process accounting for some 75 per cent of steam consumption, in both pulp and paper machines, it is more important than ever that steam is utilised efficiently: in the drying of paper it takes 1.5 t of steam to dry 1 t of chemical pulp.

Energy-efficient paper drying seminars offer a series of educational and informative presentations by experienced engineers on the optimisation of the paper drying process.

From slow speed specialist machines to the highest speed newsprint machine, the seminars offer practical help in improving the efficiency and 'runability' of the dryer section.

Together with actual application examples and demonstrations, the presentation programme includes.

* Condensate behaviour and effective evacuation at different machine speeds.

* Improving efficiency with turbulence bars.

* Development in paper machine steam joints.

* Energy-efficient use of steam in papermaking.

* Advanced control system for dryer sections.

Seminars start at 10.00 and finish at 14.30, with luncheon provided for attendees.

Ample time is built-in for questions and answers, offering delegates an opportunity to address specific issues of importance.

The speaker from Parsons Reiss will share some of his company's vast experience in steam system design and optimisation, whilst Deublin will demonstrate how its products provide optimised solutions for dryer drainage.

Well-attended seminars have already been held in Scotland, North West England, and in Kent in the South East.

Engineers and papermakers who are interested in attending a future seminar are invited to contact Denzil Ralph, Managing Director, Deublin.

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