Paper mill in Sweden uses wireless instruments to fulfill environmental requirements

Rosemount conductivity transmitters help Korsnäs Gävle prevent discharging pollutants into local waterways.

11/16/2011


Rosemount conductivity transmitters help Korsnäs Gävle prevent discharging pollutants into local waterways.Korsnäs Gävle has deployed a group of wireless conductivity and temperature transmitters from Emerson Process Management to collect critical leak-detection monitoring data at its board and paper production unit at Gävlebukten, Sweden. Improved monitoring enables the company to verify its compliance with environmental monitoring legislation.

Water from heat exchangers at the plant is carefully monitored prior to its return to the sea. Small internal leaks may result in discharges of hazardous chemicals into the local environment. Any leak of acids, bases, or salts will raise the electrical conductivity of the water and is easily detected using a conductivity sensor. A renovation project within the utilities section meant that I/O supporting existing instrumentation was to be removed. The mill therefore needed an alternative way to transmit the required measurements to the main control room.

“Initially we considered installing new cable runs, but the process would have taken too long and would have delayed the planned renovation project.” said Peter Hallenberg, project leader process automation for Korsnäs Gävle. “The application presented a great opportunity for us to install and evaluate Emerson’s Smart Wireless technology, which takes advantage of the WirelessHART communication standard.”

The Smart Wireless devices that Korsnäs Gävle installed include a Rosemount Analytical 6081-C transmitter connected to a conductivity probe. The Smart Wireless devices that Korsnäs Gävle installed include a Rosemount Analytical 6081-C transmitter connected to a conductivity probe. The transmitter sends the measurement data via a wireless gateway to the existing control and data acquisition systems, where it is used to ensure compliance with the environmental monitoring legislation.

The mill also needed to establish new continuous monitoring of emissions from aerated basins and ponds. Technicians installed 22 new sensors measuring pH, dissolved oxygen, and water temperatures, that send data to the central monitoring system. There were no available cable runs, and new cable infrastructure presented a considerable challenge with a cost of €200 per meter. Rather than laying cables, the mill installed six Rosemount wireless transmitters, each with four available inputs, to relay data from the analytical sensors. The wireless instruments provide the necessary data to meet the environmental requirements.

“Less than two months after ordering the Smart Wireless devices, the whole system was fully operational. That is very fast for implementing 30 new measurement points,” said Hallenberg. “Now that the network is in place, we have also found that adding additional devices becomes very simple.”

Specifically, Korsnäs Gävle has installed seven Rosemount 648 wireless temperature transmitters to automate the monitoring of water temperatures in wastewater pits that feed the aerated basins and ponds. A further eight Rosemount wireless transmitters will be installed to identify plugged filters on two wood chip digesters within the main processing section of the plant.

www.korsnas.com/sv

www.EmersonProcess.com

Edited by Peter Welander, pwelander@cfemedia.com



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Hannover Messe 2016: Taking hold of the future - Partner Country status spotlights U.S. manufacturing; Honoring manufacturing excellence: The 2015 Product of the Year Winners
Inside IIoT: How technology, strategy can improve your operation; Dry media or web scrubber?; Six steps to design a PM program
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Warehouse winter comfort: The HTHV solution; Cooling with natural gas; Plastics industry booming
Managing automation upgrades, retrofits; Making technical, business sense; Ensuring network cyber security
Designing generator systems; Using online commissioning tools; Selective coordination best practices

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me