26 PRODUCTS & SERVICES


Low profile skidding system simplifies Yankee change


Yankee dryer on one of its lines. Irving Tissue’s mill at New Brunswick needed to change the Yankee, 3.78 metres in diameter and 4.06 metres long and with protruding shafts, but it was deeply embedded on the second floor the building, making access difficult.


A The mill contracted an affiliated


heavy lifting and specialised rigging business, Irving Equipment, which used a low profile hydraulic skidding system for the job. Operations manager at Irving


Equipment Ryan Long explained that the scope of work presented four challenges: the travel route, second floor location of the dryer, floor strength, and tight confines for blocking up the loads. In addition to the 350-ton


capacity LP350 Hydra-Slide low profile hydraulic skidding system, Irving employed an Enerpac EVO power pack system and four 50-ton capacity jacks for vertical jacking of the dryer; a pair of 8-ton capacity Broderson carry


decks for material handling; and a 250-ton capacity Liebherr LTM1200 all-terrain crane, used to hoist the Yankee off the second- floor temporary mezzanine that the dryer was slid out onto. Long outlined those challenges


in greater detail. Since the dryer was a primary component of an existing in-line paper machine, he said, it was deeply embedded within the plant and required the project team to make three directional changes and three elevation changes to avoid existing infrastructure. “As the dryer was on the second floor of the plant, in order to get it to ground level a temporary mezzanine was designed and installed outside of the plant at


the same elevation as the sliding system, and the back wall of the plant was removed. This allowed us to slide the dryer completely outside of the building and onto the mezzanine before lifting it off with our Liebherr LTM1200.” With the concrete floor unable


to support the weight of the dryer a steel grillage system was installed to bridge the floor between supporting columns. Since the dryer removal was part of a larger overall shutdown, the system had to be installed in a sequence that didn’t impede that scope of work.


“Combined with the awkward 1.7 metres of space, we knew it would be time-consuming and hard on the rigging crew to do all


tissue maker in Canada has used a novel approach to removing and replacing a 55-ton


of that work while hunched over,” Long said. “It screamed soft tissue injury! To overcome this, one of our team members [Mike Neill] hatched the idea for a very clever ratcheting jack-post design that eliminated the need for blocking.” The LP350 eliminated the need


to remove a roof section and lift out the dryer with a 500-ton crawler crane, which would have added significant costs. The Hydra-Slide system was compact and easy to use within the tight confines of the plant. The slides took place across


two 12-hour shifts. Long stressed the importance of training to successful implementation of the LP350: “Training is critical to our success; without it we would be doing a disservice to our employees and clients. Part of the reason we invested in the [LP350] system was the confidence we got from meeting with the Hydra- Slide team. The fact that they are personally invested in the quality of their products and clearly have a passion for what they do is very important. We knew that they would provide the level of customer support that would ensure our success.”


More sophisticated imaging for paper web monitoring


A web monitoring system has been launched by ABB that incorporates a new generation of imaging hardware and software. This is said to provide real- time web monitoring and analytics which enable the quick identification of product deviations that can result


July/August 2018


in sheet breaks and lost production.


With ABB Ability, a paper making line is said to be able to run efficiently at its highest speed while maintaining the highest quality. With accurate web defect


detection, imaging and identification all playing critical


roles in process improvement, the QMS Web Monitoring System’s level of integration with the QMS Web Imaging System enables the diagnosis and prevention of web breaks and improved sheet stability. ABB Ability Web Monitoring


System includes a new generation of high-speed


cameras that deliver the required high resolution and sharp images. This is complemented by high speed video processing and synchronisation, proprietary analytics, and operator interface features to reduce disruptive events and analyse process behaviour.


Pulp Paper & Logistics


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36