CHEMICAL EQUIPMENT UPDATE
Lightweight, flexible options for specialist chemical storage tanks
Modern materials, both plastics and metals, are helping tank manufacturers offer bigger, stronger, safer and more flexible solutions to their customers. Sean Ottewell reports.
Grâce aux matériaux métalliques et plastiques modernes, les fabricants de réservoirs sont en mesure de proposer à leurs clients des solutions plus sûres, solides, flexibles et de capacité supérieure. Sean Ottewell rapporte.
Moderne Stoffe sowohl aus Kunststoff als auch aus Metall sind Tankherstellern dabei behilflich, Kunden größere, solidere und flexiblere Lösungen mit mehr Sicherheit anzubieten. Ein Bericht von Sean Ottewell.
L
iquids handling specialist Niplast of Stockport, UK, has completed the design, supply and commissioning of
six 20 000 litre thermoplastic storage tanks for Coates Lorilleux, one of the world’s largest suppliers of specialist inks and services for offset litho, gravure and flexographic printing processes. Used for the containment of water-based
raw materials, the tanks have been installed at the Coates Lorilleux liquid inks plants in Milnrow, Rochdale, and they feature fully-integrated electrical trace heating, for maintaining the product at a mean temperature sufficient to retain viscosity. Coates Lorilleux in the UK performs
a leading role in the development and manufacture of offset, liquid and web inks. Its Rochdale plant produces inks and coatings for the converting, packaging and decoratives industries, with the emphasis on product quality and technical performance.
The Niplast storage tanks form part of a new printing inks facility implemented by engineering contractor Bovis Tanvec. Each vessel was designed and constructed for the storage of aqueous acrylic resins with a specific gravity of 1.10 and the UV-stabilised polypropylene material is chemically compatible with the product. With a working capacity of 20 000 litres, the tanks measure 4160mm high x 2696mm diameter and are self-coloured in Goosewing Grey to suit customer requirements.
Frost protection To maintain working temperature and provide frost protection, self-limiting electrical trace heating tape is fitted to the lower part of each tank body, complete with duty and standby thermostats. The entire body is additionally lagged with 50mm rockwool insulation and externally clad with the same thermoplastic used for the tank, maintaining compatibility
Fig. 1. Tanks come in capacities from 500-60 000 litres. Photograph courtesy: LINPAC Allibert
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