Coal valve reduces NOx in power plants
November 2013
Valves, Actuators & Pump Control
The NT Series coal valve reduces NOx, unburned carbon and CO, improving boiler performance in coal-fired power plants. It also decreases slagging and boiler tube wastage. The valve was developed to balance coal pipes while also maintaining or creating a more consistent coal distribution in the coal/air stream of the coal pipe. This is essential for optimising combustion.
Controlling flow from coal pulverisers to the burners is critical for obtaining optimised combustion. In today’s power market, where both efficiency and reduced emissions are vitally important, the ability to control the coal delivery for combustion is essential.
While most restricting type variable orifice coal control devices move coal into more concentrated coal regions (coal ropes), the NT Series coal valve uses a perforated blade design. The more the pipe is restricted, the more coal redistribution is increased, resulting in better combustion.
The NT Series is manually operated or can be supplied with an actuator. It is easy to install in any pipe size without removing a section of pipe, although a flanged spoolpiece is available as an option. Proven to regulate coal when installed properly at the mill outlet, the valve eliminates roping and excessive pipe wear associated with other coal adjusting devices.
It can be used to control both the coal mass and the coal velocity to the burners. Coal distribution can be improved in power plants by reducing LOI by 4%, combined with a dramatic reduction in CO.
For more information contact Mike Andrews, OEN Enterprises, +27 (0)11 675 4447, [email protected], www.oenenterprises.co.za
Further reading:
Submersible pump protection
ifm - South Africa
Valves, Actuators & Pump Control
With ifm’s remote monitoring solution you can visualise the condition of your submersible pumps and diagnose issues before they become serious problems.
Read more...
Electrically operated, energy-efficient double diaphragm pumps
Valves, Actuators & Pump Control
BMG has introduced the EVO 210 series electric double diaphragm pump range, offering a quieter, more energy-efficient alternative to conventional air-operated diaphragm pumps for chemical processing, mining, wastewater treatment and general manufacturing applications.
Read more...
Internationally engineered valves support uptime in tough conditions
Bearing Man Group t/a BMG
Valves, Actuators & Pump Control
BMG’s Fluid Technology division works closely with industry in sub-Saharan Africa to ensure that all valves, strainers and flow control equipment supplied meet the exact requirements of every application and also conform with stringent industry standards.
Read more...
Engineering simplicity: shaping the future of valve automation
Festo South Africa
Editor's Choice Valves, Actuators & Pump Control
Festo’s VTOP pneumatic assembly offers a streamlined approach to managing pneumatic and electrical interfaces at the valve assembly.
Read more...
Hygienic processing with butterfly valves and Bürkert control technology
Bürkert South Africa
Valves, Actuators & Pump Control
Among the standout technologies shaping modern hygienic processing environments are hygienic butterfly valves, especially when seamlessly integrated with Bürkert actuators, control tops and positioners.
Read more...
Cryogenic valve limits leakage and energy loss
Valves, Actuators & Pump Control
Emerson has introduced the Fisher IC2 cryogenic top-entry control valve, ideal for cold box applications in air separation units, hydrogen liquefaction and LNG production.
Read more...
Allmech introduces new water treatment solutions
Valves, Actuators & Pump Control
Allmech has announced a series of product updates aimed at improving reliability, efficiency and system simplicity in high-volume and high-hardness water environments.
Read more...
Duplex valve improves continuous production at Gauteng manufacturing facility
Valves, Actuators & Pump Control
In a recent installation at a Gauteng-based manufacturer of household and personal care products, Allmech provided a tailored water treatment solution to ensure a consistent supply of soft water for steam generation, an essential element in the client’s 24/7 production cycle.
Read more...
Developing solutions for SA’s wastewater challenges
Valves, Actuators & Pump Control
KSB Pumps has a proud global legacy in the development of self-priming pump technology, which reflects decades of engineering innovation and application expertise. Building on this foundation, KSB’s AU series has extended the company’s self-priming expertise into screened wastewater handling, which meets the growing needs of municipal and industrial sectors worldwide.
Read more...
Helping to solve wastewater challenges
Valves, Actuators & Pump Control
KSB Pumps and Valves is doubling its efforts to help government and municipalities find practical and technical solutions to the growing wastewater challenges gripping large parts of the country.
Read more...
printer friendly version