A Better, Faster Way to Source Pumps

Peristaltic Pumps Ideal for Paper Industry

Contributed by: Simon Carr at Watson-Marlow

Paper Industry Processes & Requirements

In the paper industry, efficient pumps are critical for maintaining low costs and producing quality products. There are three main pumping applications within the paper industry: starch recirculation, dye dosing for coloured stock, and the addition of general chemicals. Chemical and dye dosing applications require accuracy, reliability, and repeatability. Meanwhile, starch is very shear sensitive. These two applications especially can benefit from peristaltic hose pump technology.

Various pump types are used throughout the paper industry to handle various processes. AODD pumps are one such pump type. For dye dosing and starch recirculation, however, AODD pumps may not be the best option because of their tendency to damage shear sensitive materials. Alternatively, peristaltic pumps can safely handle shear sensitive starch and deliver high repeatable accuracy of +/- 0.5%.

Paper mills produce huge amounts of paper every day, with varying grades from standard stock to security papers for bank notes. Final product quality is essential, as are safety considerations throughout the process, which can include handling abrasive or hazardous solutions. The greatest risk to using a pump type not suited for paper applications is poor product quality or constant maintenance, which leads to waste and higher expenses for the paper mill.

Peristaltic Pump Features

Peristaltic pumps offer several features that make them ideal choices for both starch recirculation and dye dosing in paper mill applications. Specifically, peristaltic pumps completely contain the fluid being pumped within the hose without the use of seals, glands, membranes, or rotors; hazardous or abrasive solutions are not an issue. Additionally, peristaltic pumps offer high levels of accuracy and repeatability.

Peristaltic pumps are held to the highest manufacturing standards and feature compact direct coupled design. The pumps are offered in several sizes that enable them to handle flows from litres per hour up to thousands of litres per hour and pressure to 16 bar (232 psi). The pumps also have dry-run and self-priming capabilities. Quick and easy maintenance means peristaltic pumps typically only require a hose change that can be performed in situ without extensive training or technical knowledge.

While there are many pump types that can perform in the paper industry, peristaltic pumps offer the best match of features to application requirements in terms of maintenance, cost, performance, safety, and efficiency. Particularly for dye dosing and starch recirculation, peristaltic pumps are the best option for paper mills around the world.

Source: Watson-Marlow