Pulp & Paper Storage Tanks Built for Compliance & Uptime

Why Purpose-Built Storage Matters in Pulp & Paper

The paperboard process demands consistent material flow to maintain quality and throughput. It begins with recycled bales immersed in a 165°F agitation tank, where the material is broken down into fibers. This de-fibered pulp is processed and separated by color before moving to a critical stage: temporary storage in an under-floor chest. Here, the slurry circulates continuously to prevent settling, ensuring a uniform 4% solution is ready for the paper machine.

Our engineered solutions, like a dedicated pulp tank, are designed for this environment. We specialize in factory-coated bolted steel tanks for a fast, consistent modular installation that eliminates unpredictable field welding. Designs accommodate under-roof placement and include integrated agitators, level instrumentation, and full access platforms. Based on mill specifications, a typical chest might feature a 24-inch square hatch elevated by approximately 22 inches, a 12-foot depth, and a 4-inch feed pipe, all centered on maintaining perfect slurry circulation.

Storage equipment in pulp and paper facilities must meet strict documentation and safety expectations. Designs are built around the specific chemistry of pulp, starch, coatings, white liquor, and black liquor systems, with coatings and materials chosen to control corrosion and maintain hygienic operation. OSHA provides guidance on safe practices relevant to pulp and paper tank operations, and most mills expect suppliers to integrate these requirements into their own QA and QC procedures.