Applications for Pulp and Paper Processing

Problems unique to the pulp and paper market have given Discflo the opportunity to demonstrate its unrivaled superiority in difficult-to-pump applications. Discflo pumps have made it possible to pump medium-to-high density stock up to 18% consistency, without using air removal or fluidation and it does so without performance loss due to wear. No other pump can do this. Disc pumps can handle viscosities of 300,000 cPs and at 350 cPs need less horsepower than a similarly-sized centrifugal. The pump becomes even more efficient at higher viscosities. Also, the Discflo pump can deliver higher product yields because there is no shearing of delicate solids.

The Disc Pump Brings Unprecedented Economy To Pulp and Paper Processing.

A top paperboard manufacturer is using Disc pump systems throughout its mill in northern Sweden. Applications include pumping lime slurry, black liquor soap, coating waste and lignin/white liquor. One of the toughest uses was pumping a very abrasive and shear sensitive bentonite solution.

Since installation of the Disc pumps, the plant manager has not purchased any spare parts for these pumps, and has reported no unplanned maintenance or downtime. The investment in Discflo pumps has returned a substantial dividend. The company estimates the savings amount [$10,000-$20,000] per pump per year.

• Savings from reduced pump maintenance and downtime.
• The Disc pump can handle the higher viscosities associated with pulp and paper processes without excessive wear or maintenance, and in many cases uses less energy.
• More efficient systems can be put in place that eliminate storage and vacuum systems.
• Savings in water and power resources.
• The unique non-impingement design of the Discflo pump delivers the product with no change in paper freeness.
• Many of our customers have realized savings of tens of thousands of dollars per year.

No De-Watering:

Paper stock is gently processed without impingement through the pump-in effect pulled through as a homogeneous liquid and de-watering does not occur.

Maximum Paper Freeness

Independent tests have confirmed that there is no measurable loss of freeness to paper fiber when processed through a properly-sized Discflo pump.

Discflo pumps are the only choice in Pulp and Paper processings toughest jobs.

Chemical Recovery: Green liquor dregs, black liquor soaps, clarifier sludge with up to 80% Solids.

Paper stock and pulp: Stock up to 18% density can be pumped with no dilution or fluidizer required.

Paper Coatings: Polymer emulsions, latexes, kaolin clay slurries, titanium dioxide slurries up to 80% solids, and bentonite solutions.