Trouble with Kiln Ringing?

Arauco Constitución’s Kiln Ringing Solution Eliminates Unscheduled Shutdowns

Kiln ring formation is a common problem among many mills and can cause a variety of issues including a costly shutdown. For years, the lime kiln at the Arauco Constitución pulp mill in Chile experienced severe ringing problems and had to be shut down for ring removal every three to six months. The mill responded to the problem by examining the ring growth, ring composition and plant operating data. With their findings, they were able to develop a ring removal strategy with successful results. Now the kiln runs nonstop between annual maintenance shutdowns, substantially reducing the costs associated with ring removal and lime replacement during the previous unscheduled shutdowns.

Attendees can learn more about Arauco Constitución’s kiln ring solution during PEERS 2019. Eduardo Keim from Celulosa Arauco y Constitución SA will present “Combatting Lime Kiln Ringing Problems at the Arauco Constituciόn Mill” during the PEERS Energy, Recovery, Lime Kiln and Recaust track. During his presentation, Keim will share details on the steps they took to identify the main cause of the ringing as well as the blasting protocols tested to determine the best ring removal strategy for their mill, a weekly blasting operation alternating between a Cardox system and an industrial shotgun.

TAPPI’s 2019 Pulping, Engineering, Environmental, Recycling, and Sustainability (PEERS) Conference, October 27-30 in St. Louis, MO, is considered the premier technical event focusing on the latest advances in technology, as well as fundamental process knowledge and control issues mills face each day. Its comprehensive technical program includes eight program tracks emphasizing new methods and best practices to help mills optimize operations and reach their sustainability goals.

View the PEERS 2019 Technical Program

The Conference also offers a tutorial, workshops, and committee meetings focused on various aspects of the pulping and bleaching process. In addition, a New Technology Showcase, Hot Topics Breakfasts, exhibits, and multiple special events will take place during the four-day event.

PEERS is co-located International Bioenergy & Bioproducts Conference (IBBC) and the 12th Research Forum on Recycling. Attendees can attend all three events for only one registration fee.
Register today! Mills get a special discount.