MILL OPERATIONS

To filter contaminants from the black liquor dump tank at its Franklin, Va., mill, Union Camp Corp. has ordered a pressure screen from Voith Sulzer. The screen is Voith Sulzer's Model 1 Axiguard.

As a part of the equipment additions that are required to finish the facility, Ponderosa Fibres of Pennsylvania has ordered two SansGrit separators from Thermo Black Clawson for the new Northampton mill. The two units will be used to remove heavy debris from the water loops in the pulping and coarse screening systems of this 100% recycled fiber pulp mill.

Norkraft Quevillon Inc., a subsidiary of Domtar Inc. that is located in Lebel-sur-Quevillon, Que., has completed a $245 million modernization program. The project was carried out by a consortium involving Babcock & Wilcox, B.G. Checo, and H.A. Simons. The project included a new recovery boiler, a 45 MW turbo-generator, a secondary effluent treatment system, new sludge and pulp washers, and digester improvements.

International Paper Co. has selected Voith Sulzer to provide two kraft mill screening systems for its Rieglewood, N.C., mill. Each screening system includes primary, secondary, and tertiary Bird EcoScreens, plus a Rejectsorter and L-5 cleaner bank.

Sonoco Products Co., Newport, Tenn., has purchased Thermo Black Clawson screening and cleaning equipment to upgrade the mill's No. 2 beater room system. Sized for 342 tpd of tube board from OCC, the system consists of Liquid Cyclone high density cleaners, a Double Separator combination coarse and fine screen, and an Ultra-V fine slotted screen. The new equipment replaces an obsolete Turboseparator, which will be removed from service. Startup is scheduled for early 1998.

Caraustar's Austell Box Board Corp., Austell, Ga., has ordered a rebuild for the filler pulper in Mill No. 1 from Black Clawson. The original Black Clawson Hydrapulper will receive a new raised rotor extraction chamber to reduce wear on the rotor vanes by slightly raising the whole assembly up from the bottom of the 14 in. tub. This creates a trough in which the rag rope tail can ride safely away from the vane ring of the Vokes rotor to extend wear life.

For its Great Northern Paper mill in East Millinocket, Maine, Bowater Inc. has ordered a flotation deinking system from Voith Sulzer. The flotation system consists of one mixing cell, five primary cells, and one secondary cell. All are Voith Sulzer's new EcoCell design.

For the No. 4 paper machine at its Thorold, Ont., mill, Georgia-Pacific Corp. has contracted with the Lawton Co. for the supply of new paper machine gearing. The new gearing is a result of a joint effort between Georgia-Pacific and Lawton to evaluate and improve the performance of the drive system in the dryer sections.

Boise Cascade Corp.'s Jackson, Ala., mill has replaced its original chip-and-saw heads with TurnKnife chipping heads from Iggesund Tools.

To protect its brown paper roll shipments, Tenneco Packaging's Valdosta, Ga., mill has switched to its own Hexacomb railcar roll securement system. All of the three primary components of this system are made of lightweight, recyclable kraft paper honeycomb, including the Cushion Comb roll spacer, void fillers, and Roll Riser blocks and pads. With Tenneco's other brown paper mills in Counce, Tenn., Filer City, Mich., and Tomahawk, Wis., already using Hexacomb, the addition of Valdosta means a 100% recyclable system.

Inland Container, Newport, Ind., has ordered an 800 tpd screening system for treatment of 100% American old corrugated containers (AOCC). The installation consists of four Sunds Defibrator DeltaScreen T units, and the screens will feature Nimega slotted screen baskets for high removal efficiency.

Atlantic Newsprint, Whitby, Ont., has installed a three-stage DeltaScreen system from Sunds Defibrator. The system consists of DeltaScreen T-9s and a DeltaScreen T-6. The units are used for screening a newsprint/magazine furnish.

Manistique Paper, Manistique, Mich., has installed and successfully started up a three-stage 800 tpd DeltaScreen system from Sunds Defibrator. These screens use 1 mm Nimega slotted screens for a news/magazine pulp furnish.

At its Chagrin Falls, Ohio, mill, Ivex Corp. has contracted with the Lawton Co. for an engineering evaluation of the gearboxes for the No. 3 paper machine. Lawton technicians will inspect the internal conditions of the components and make recommendations to improve performance for current and future conditions.

Alliance Paper, Coosa Pines, Ala., has placed an order for two Sunds Defibrator JC-04 Conflo refiners. The JC-04 refiners will be controlled by a PQM In-line Fiber Analyzer that uses image analysis to measure classification and the shape of fibers and shives. Alliance Paper will treat approximately 600 tpd of stock for its newsprint production.

U.S. Paper Mills, a division of Menasha Corp., has ordered dryer heads from the Lawton Co. for the No. 1 paper machine at its Menasha, Wis., mill. Lawton will design, cast, machine, and ASME code the 42 in. dia heads for 75 psi operating pressure.

For its pulp and paper processing laboratory work, Cegep de Trois Rivieres, Trois Rivieres, Que., has ordered two Model 50 Thermo Black Clawson Mini-Screens. These small pressure screens utilize 0.004 in. slotted cylinders and low pulse open rotors. The new screens replace obsolete Black Clawson 8P screens, which are being retired. Startup is scheduled for this month.

Klabin Fabricadora de Papel e Celulose, Piracicaba, SP, Brazil, has ordered two complete Thermo Black Clawson stock preparation systems to make pulp for its linerboard production. The first system-an OCC plant-is a fractionation processes design and includes the entire approach flow system for the paper machine. The second system-a recycling system-will handle 100% Tetra Pak food and drink aseptic packaging containers. Both systems are scheduled for startup in September 1998.

For its South African Pulp and Paper Industry (SAPPI) paper mill in Stanger, Kwazulu, South Africa, Eskom-the national utility of South Africa-has purchased a superconducting magnetic energy storage device (Micro-SMES) from Superconductivity Inc. Known as the PQ VR, this a.c. voltage device is designed to eliminate voltage dips from large critical loads that result in paper machine downtime.

Indah Kiat Pulp & Paper, Perawang, Indonesia, has installed a fourth Forte bale moisture and weight measuring system. The new system measures moisture and A/D commercial weight in all pulp bales produced, while controlling the bale marker. The system also provides a moisture profile across the dryer.

Shan Dong Sun Paper Industry Group Co., Yan Zhou, Shan Dong Province, China, has ordered two AOCC processing systems from Thermo Black Clawson. Each one will make 120 tpd of four-ply coated linerboard. Both top liner and base sheet systems include new DR Hydrapulper pulping machines with trashwell and grapple hoist, a Hydrapurge II detrasher, Liquid Cyclone cleaners, Ultra-V pressure screens, a Float Purger deflaking screen, Ultra-Clone centrifugal cleaners, and new Xtreme reverse cleaners for removal of lightweight debris.

For installation in the pulp mill system, Trombini Papel e Embalagens, Fraiburgo, SC, Brazil, has ordered a Hy-Tek presssure knotter and Hydrascreen secondary knotter from Thermo Black Clawson. The equipment will be used to remove uncooked knots from the brown stock fiberline. The new knotter should increase production as well as pulp quality.

Palm Papierfabrik, Neukochnen, Germany, has completed the rebuild of its paper machine 2 N. The rebuild by Voith Sulzer Papiermaschinen GmbH was accomplished in nine days, and the DuoFormer D had a successful startup. This quality upgrade allowed a 10% increase in machine speed, and, because the new parts were designed for an operating speed of 1,200 m/min, there is a potential for further production increases.