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Report - Tullis Russell Paper Mill, Glenrothes - Sept. 2009

Discussion in 'Industrial Sites' started by BenCooper, Sep 8, 2009.

  1. BenCooper

    BenCooper Mr Boombastic
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    Tullis Russell is celebrating it's 200th anniversary this year, and it's still going strong - in fact it's just about to build a brand new 50-megawatt biopower power station. To celebrate both these events, they held a series of open evenings - tours around the fully operational paper mill.

    I've seen a reasonable number of paper mills, from fully gutted ones to ones turned off the week before, but there's something completely different about a working mill - it's alive, not dead, and full of heat, noise, and hundreds of people in hi-viz vests :)

    This drum chops the fibres, making them bind together better - the device on the left is a series of centrifugal filters to remove dirt from the pulp:

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    The "wire" where pulp is laid out to drain most of it's water - these used to be made of copper wire, but are now a plastic, and it costs £10,000 to replace every six months or so.

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    This machine is a "twin-wire" machine - a second wire on the floor below also produces a sheet of paper, and the two sheets are pressed together - here you can see the sheet from below coming up.

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    The big box on the left of this is the dryers - they're called slalom dryers, where the paper is pressed on a felt belt and runs up and down through a series of steam-heated drums. In this particular machine, a middle stage adds liquid starch to bind the paper layers more strongly, then the paper is dried again.

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    The end result - 99.5% water went in at the other end, a 12-ton roll of paper comes off here. The machine doesn't stop, as soon as one roll is done the next roller is already running up to speed, and takes up the supply seamlessly.

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    The paper made here is often coated, so the giant rolls are transported on special trailers to the coating machines.

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    The rolls of paper are fed into the giant coating machine. This machine doesn't stop, so when one roll is running out adhesive strips are fixed to the next roll, it is run up to speed, and the new end is stuck to the old end without stopping. That's the theory - it doesn't always work in practice :)

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    This machine is simply gigantic - it also goes about a floor level below here, and there's about 800 feet of paper in the machine at any one time.

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    The coatings are a mixture of chalk and other additives - first one side of the paper is coated, then it's dried using infrared lamps at 800-1000 degrees - the paper goes so fast that it doesn't burn. The the second side is coated and dried, then smooth rollers polish the surface.

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    The rolls of paper then go onto the cutting department, where this automatic machine first slices the paper lengthwise then across the width - all at a speed of 180 metres a minute.

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    The sheets are then interleaved, then finally stacked on pallets.

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    The pallets are then transported to an automatic heatshrinking machine where they are wrapped up, then loaded onto lorries.

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    One thing TR specialise in is creped paper - this is used with resin to insulate cables including very high voltage ones. TR don't make this paper - they buy in smooth brown paper, then run it through their creping machines.

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    Then onto the workshops - an elderly retired worker remembered when there were 35 men working here, with foundry and the ability to amke almost anything needed in the mill. Now only four people work here, but there's still some serious equipment.

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    Next to the workshops is the power plant - this 16MW coal and oil fired power station will be replaced by the new wood-burning plant. It's got three absolutely lovely Parsons turbines.

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    Finally, onto a lab where there's a fully working miniature paper machine - made in Germany in the '60s, and used for small experimental batches.

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    Next to the paper machine are miniature beaters, pulp mixers, cleaners etc - it's an entire paper mill in miniature!

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    More pics, as usual, in my Flickr set...
     

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