Metso Automation Inc. | Date: 2015-08-21
Setup, monitoring and control of various field devices are provided using a general purpose, off-the-shelf mobile device such as a smartphone or tablet computer adapted by an application program to communicate using the Bluetooth communications protocol with communications and control modules attached to the field devices.
Goldman J.,Metso Automation Inc.
PEERS Conference 2014 | Year: 2014
Many mills ask the following question. Should I control my Fiberline with lab test, inline sensors, or on-line analyzer measurements that pull samples from my process, or some combination of these? This paper will discuss the pros and cons of each of these approaches, focusing on critical kappa, brightness, and pH measurements throughout the entire Fiberline. This paper will also discuss how these lab or online measurements along with in-line continuous measurements can be utilized to control each process area. The process areas to be discussed include the continuous digester, 02 delignification, and the first three stages of a typical bleach plant. This paper will describe how the on-line absolute measurements or lab test can be used for feed-forward controls when they are located on the inlet of the process area. It will also discuss how these measurements can be used for feedback correction when they are located on the outlet of the process area. Finally, the reasons why these measurements and controls are so important to optimizing your process areas are explored. The reasons why each areas measurements and controls is so challenging is also explained.
Goldman J.,Metso Automation Inc.
ISA Process Control and Safety Symposium 2014, PCS 2014 | Year: 2014
While on-line optical Kappa measurement is now an established means to control brightness, the use of in-line brightness and residual measurements along with the kappa measurements enhances the control performance in Kraft bleaching. This combination along with a predictive and adaptive control algorithm provides an excellent strategy for mills targeting lower operating costs with higher pulp quality. This paper describes how the economic benefits are consistently achieved at a mill in South America. The ClO2 control model and the salient features of the model are discussed along with the measurement of on-line Kappa before the bleach plant and after the first extraction stage. Also the use of in-line brightness and residual meters after the bleach feed, first Extraction Stage, D1, and D2 stages of a four stage bleach plant are discussed. The bleach plant that will be discussed has the sequence of DO, Ep, D1, and D2. This paper will discuss how these on-line measurements are utilized along with inline continuous measurements to control each bleaching stage. This paper will describe how the all the measurements are used for feed-forward controls when they are located on the inlet of the stage. It will also discuss how these same measurements are used for feedback correction when they are located on the outlet of the stage. The paper will also explore whether inline sensors are suitable for feedback controls and for replacing lab measurements as compared to an offline automatic analyzer that can be used for the same purpose. Finally, the reasons why this model works well are explored. The reasons why bleach plant controls is so challenging is also explored, along with the reasons why well designed bleach plant control using the correct measurements is so important..
Raty J.,Metso Automation Inc.
IPPTA: Quarterly Journal of Indian Pulp and Paper Technical Association | Year: 2014
A challenge in targeting for higher plant availability and performance is to share limited valve maintenance resources between failures already disturbing the process and on preventive work to avoid future failures. In shutdown planning one of the biggest challenges is to determine which devices will be adjusted, repaired or upgraded, and ensure that key devices requiring attention are not ignored. Metso has developed a combination of analysis approaches to cover whole installed valve base, done either remotely by a condition monitoring system or by using portable analysis tools and visual inspection. With an expert analysis of field device condition, recommendations for predictive maintenance significantly improve the cost effectiveness of subsequent service actions.
Kytokari J.,Metso Automation Inc.
26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings | Year: 2012
Controlling a wide range of minerals processes with single control system is an ordinary way to operate in mines all over the world these days. However the potential of these systems is not yet fully recognized nor utilized. The key issue is to manage the information in a way that enables automating the day-to-day tasks, quality control and safety functions. At the same time it provides means for optimization and constant improvement of processes creating a working environment where the system helps employees to do their key tasks instead of searching, modifying, and transmitting the huge number of information arising every day. The distribution of control system nodes enables the other processes to run heedless of a problem occurring in one of the sub-processes. Also the control room can be in remote location such as in large city removing the need to travel substantially long distances to plant sites every day. When all essential information is brought to the same place there is less risk for a mishap to happen due to information breaks that are often the cause of them. One of the biggest single reasons that result in production losses are break downs of machinery usually caused by normal wear, misuse, incorrect utilization rate etc. For this reason it is important to measure the condition of machines using vibration measurement and diagnostics. By moving from failure or time-based maintenance towards predictive or performance maintenance generates eventually a steady and predictable process but also results in significant long term savings. The mineral process at Talvivaara mine is based on bioheapleaching, whereby metals are leached from ore as a result of bacterial action. Bioleaching is a fairly new technology used in metals recovery. Therefore it is important for the mine to collect and analyze data from different stages of the minerals process. Talvivaara mine's Metso DNA system has integrated machine condition monitoring and information management. These are not only necessary but also crucial in environmental conditions where the outside temperature can drop below -35°C, where ice and snow dominate the landscape and impact the equipment for four months a year and where distances between equipment can be up to 7.5 kilometers.
Nuyan S.,Metso Automation Inc.
Paper Conference and Trade Show, PaperCon 2013 | Year: 2013
Pulp and paper automation systems have been experiencing an exponential rise in the data they generate. New data sources such as fast, non-scanning measurements, vision-based sensors, process and quality vision system cameras are all producing different types of data at a relatively large rate. At the same time, "big data" revolution led by internet based companies are changing data management and processing from a centralized to a distributed operation. This paper explores the "information big bang" in the P&P automation segment, looks at the big data infrastructure and tools, and how these might change the role of automation in the pulp and paper industry, specifically the role of QCS. The question of performance monitoring in the context of big data is also explored. Combining process data, alarm data, and process knowledge result in effective performance monitoring, benchmarking and debottlenecking tools.
Metso Automation Inc. | Date: 2010-04-08
A method and apparatus are set forth for modeling a coloring process in moving web manufacturing through dye response gain adaptation using measured sheet color spectrum; and dye response shape adaptation using measured color spectrum of the production sheet. The adaptation of colorant (dye) response gain uses the measured sheet color spectrum value at the value of maximum light absorbance of the dye. The adaptation of dye response spectrum uses the measured sheet color reflectance spectrum and sample sheet color spectrum with a corresponding response shape calculated using a formula to adapt the current sheet condition dye response shape using the dye response from the sample sheet on the assumption of a constant ratio of absorption change to dye concentration change.
Metso Automation Inc. | Date: 2014-06-10
Computer software that provides web-based access to applications and services through a web operating system or portal interface; Providing temporary use of a non-downloadable web application for generating models.
Metso Automation Inc. | Date: 2015-12-01
Manually operated metal valves; metal valves not being parts of machines; water-pipe valves of metal. Hydraulic valve actuators; parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; pneumatic valve actuators. Valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines.
Metso Automation Inc. | Date: 2014-12-31
A solenoid valve has a housing defining a first axis and second axis, a solenoid which produces a magnetic field along the first axis, a valve shaft movable between open and closed positions along the second axis, and a manifold mounted to the housing. The axis is biased toward the closed position by a spring and mechanical forces sufficient to overcome the force of the spring are transferred from the solenoid to the shaft by a lever to open the valve and then hold the valve open. A poppet seal, which interacts with a portion of the housing to close the valve, and a spool seal, which interacts with portions of the manifold to route fluid to the desired port, are mounted to the shaft. An electronic circuit controls delivery of current to the solenoid to shift and hold the shaft in the open position.