“The productivity of our machines and equipment here is a big deal, and due to our focus on maximizing our production capacity, 以及预防性维护计划, 十大彩票平台很自豪拥有超过90%的正常运行时间.”
“We run a tight ship here at Clermont,” 说 工厂经理, Jean-Paul Bouchard. “It is our absolute aim to achieve maximum efficiency right across the mill. The productivity of our machines and equipment here is a big deal, and due to our focus on maximizing our production capacity, 以及预防性维护计划, 十大彩票平台很自豪拥有超过90%的正常运行时间.”
Resolute FP Clermont’s TMP mill located in Quebec, 加拿大 is one of the leading newsprint mills in the world when it comes to cost-per-ton of production. It also prides itself on the quality of its products which are used by well-known titles such as the New York Times and other major newspaper publishers in the USA, 欧洲和欧洲以外. The mill produces newsprint of a low weight basis, 40-48 g/m2，在8.7 m wide paper machine at a speed of 1275 m/min.
The management at Clermont recently decided that it needed an upgrade one of the three refiners feeding its single paper machine to better control efficiency and stability. 布沙尔解释说, “When thinking about the refiner we were operating, I like to compare it to cruise control of a car. 当你使用巡航控制, 你想以一个恒定的速度运动, 是否开车上山, 下坡或直路上. With our existing refiner we had no control at all.”
十大彩票平台, already a long-term supplier to the 克莱蒙特轧机, was contacted to see if it might have a solution that would bring more control to the existing CD Refiner in question – an older model from another supplier. 协商后, it was decided that this would be possible and improving refiner stability could be achieved by replacing the electromechanical guide-valve with a hydraulic servo valve and removing the in-gap sensor.
The project meant embarking on a task that had never been carried out before, 事实上，这是世界首例. The scope included installing a Hydraulic Commander to provide more stable refiner load control as well as improved quality control. The installation also included the 十大彩票平台 refiner protection system, ADVACON. 也, a new plate positioning control system was installed on the refiner that permits control via a hydraulic servo valve without TDC sensors, 哪些显著提高了响应时间, 精准高效操作.
Sylvain Renaud, 十大彩票平台自动化产品经理, HC炼油厂, 说, “We first presented the Hydraulic Commander solution, 2018年与ADVACON合作, and Clermont showed a keen interest in the automation it would bring to the refiner.
“At first the mill was going to use the existing TDC for controlling the plate gap, but it was subsequently decided to go with the 十大彩票平台 contactless position sensor.”
The complete plate positioning control system was installed on the CD70 refiner starting-up in March 2019 as planned, with the hydraulic conversion being completed in just four hours, 包括拆卸导阀, connecting the new hydraulic block disconnecting the TDC sensors and verifying motor start-up sequences and logistics.
The new control system now manages simultaneous plate positioning of the CD and flat zone on the CD refiner. It maintains plate positioning on both zones using standard contactless sensors. The control system also manages plate protection, 保护物流静动态零, as well as providing an up-to-date control platform that is user friendly for operators.
Mill manager Bouchard is delighted with the results of the updated refiner, 他说, “We have gone from monitoring the running of the refiner literally by the sound it makes, to now being able to actually analyze the data and fine tune the efficiency and quality of the output.
“交付和启动都很顺利, 当遇到困难或挑战时, both the mill and 十大彩票平台 experts soon overcame them. 十大彩票平台现在觉得只要稍微调整一下, we will be pretty much close to the optimum operational efficiency and we are very close to the sweet spot.”
菲利普·马特尔, TMP负责人, 克莱蒙特机说, “There was an adaptation period where operators had to understand the new system, where the plate zero was and how to run the line with the new system; but it went well and after a few weeks, 每个人都在训练.
“The most interesting aspect of the project to me was replacing the guide-valve with the new 十大彩票平台液压块, having a servo valve has really improved response time.”
史蒂夫的阶石, 生产主管, 克莱蒙特轧机, 增加了, “The most impressive aspect of the project from my point of view was the removal of the TDC which makes our lives so much easier; no more head-phone calibration that changes depending on who is doing it, 不用再买传感器了, 无需更换和检查传感器. Now, we press a button and everything is automatic, and works 10/10 every time.”