Pumping Applications in the Paper and Pulp IndustryLearn about the various pumping applications within paper & pulp processing and how DAE Pumps can help solve challenges of the paper & pulp industry. Browse our Pump Selection
Common Pump Applications
The papermaking process involves metering, mixing and pumping a wide variety of chemicals and high temperature, abrasive material. Our paper pumps and pulp pumps can handle these caustic chemicals and will pump abrasives without damaging or wearing out the pump. Conventional diaphragm metering pumps often pump in short pulses which over time can cause damage to the mills piping systems.
Common Paper Production Applications
- Wood Chipping / Debarking
- De-inking Chemicals
- Stock Preparation
- Wet End Chemical Preparation
- Starch Preparation
- Coating Color Kitchen
- Wastewater and Sludge Dewatering
Paper & Pulp Pump Applications
Wood Chipping / Debarking
The initial stage of paper and pulp production starts with the raw materials, which in many cases, are trees. The trees are cut into logs and then undergo a debarking and chipping process to prepare it for the paper processing cycle.
De-inking Chemical Application
Corrosive chemical additives like sulphuric acid, sodium hydrosulfite, sodium silicate, sodium hydroxide and soaps are commonly used in the paper mills during the de-inking stage of production.
Pump Chemical Applications: Corrosion resistant submersible pump
Paper mills require a continuous feeding of paper/pulp solution for a constant production. Progressive cavity pumps with automated variable flow rates are ideal for maximum efficiency.
Pump Applications: Slurry pump for feeding paper/pulp solution.
Wet End Chemical Preparation
Paper production involves the use of several process additives such as fillers, starch, sizing agents, retention aids, fixing agents, dyes, optical brighteners (OBA), polyaluminum chloride (PAC), precipitated calcium carbonate (PCC) and alkyl ketene dimer (AKD). These chemicals are metered and then pumped into the stock using positive displacement pumps.
Cationic starch is cooked into a paste-like solution, metered, and constantly pumped into the paper stock mix. Cationic starch is primarily used as a strength and retention aid in papermaking and requires pumps with an ability to perform at higher temperatures (over 100°C).
Pump Applications: temperature resistant paste pump
Wastewater and Sludge Dewatering
The paper production process inevitably creates unusable byproducts such as liquid and dewatered sludge, flocculants, and effluents that must be continuously removed or pumped away from the processing site. This process can sometimes be a strain on the budget, as this process does not add to the profits in any way. For this reason, it is vital to use the most cost-effective solution that provides optimal production rates.
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Types of Paper & Pulp Pumps
- Progressive Cavity Pumps
- Diaphragm Pumps
- Positive Displacement Pumps
- Pulp Pumps
- Chemical Pumps
- Water Pumps