Sep 21, 2012
Manufacturer launches new coal-fired boilerBack
Africa|Bosch Partnership|Bosch Thermotechnology|Cleaning|CoAL|Components|Design|Dryden Combustion|Pumps|Shell|Systems|Water|Africa|South Africa|Cleaning|Energy|Equipment|Service|Systems|Gordon Slater|Power|Sue Kiley|Water
© Reuse this
Two of these boilers will be installed in the Cape later this year.
“The new Dryden Mk7 coal-fired boiler is a welcome alternative to an industry that has had limited options to date,” says Dryden Combustion MD Gordon Slater.
He claims that, for more than 20 years, there has been only one main supplier of coal-fired boilers in South Africa and that the Dryden Mk7 will create competition in the market.
The boiler has outputs ranging from 1 000 kg/h to 21 000 kg/h and features operating pressures of up to 2 000 kPa.
“The Dryden Mk7 comprises a fully wetback range of coal-fired boilers. It is a modern, efficient unit, with a three-pass shell-boiler design, coal-fired with a fully water-cooled combustion chamber. The twin-flue boilers have separate walker-type combustion chambers, allowing single flue firing.
“A variety of models are available and manufactured under the supervision of an approved third-party inspection authority,” Slater says.
The Dryden Mk7 has a specially developed, high-efficiency low-power induced draught fan, with curved and radially tipped blades for minimum fly-ash build-up.
“The fan and impeller are statically and dynamically balanced for smooth operation in service.
“The boiler output is affected by the change in the calorific value of the fuel. The burning of fibrous fuels can also be accommodated,” says Dryden Combustion director Sue Kiley.
She explains that the Dryden Mk7 is fitted with a chaingrate stoker, with wide links for improved combustion performance.
“As it is one of the hardest worked components of any shell boiler, the stoker has a rugged design. Combustion air is provided by balanced draught equipment, which can be controlled by either a single-lever control unit or as an optional extra through a solid state-type electronic controller.
“These devices correctly adjust the induced draught dampers, forced draught damper and stoker motor speed for the most efficient combustion conditions.
She further explains that soot-blowing equipment is fitted as a standard feature to lengthen the intervals between tube cleaning and extend boiler activity in service.
“The control panel contains all the associa- ted electrical equipment and can be mounted on the boiler subframe, in accordance with the packaged boiler concept,” Kiley notes.
“We also offer the latest available technology for new boiler control systems, optimising combustion efficiency, saving energy and reducing air and noise pollution,” Slater adds.
“Bosch Thermotechnology manufactures more than 1 500 boilers a year. We have already received an order for a 20 000 kg/h, 30 bar gas-fired Bosch boiler, fitted with Hamworthy low-nitrogen-oxide, high- efficiency burners. The boiler will be delivered later this year,” Slater states.
Edited by: Chanel de Bruyn© Reuse this Comment Guidelines (150 word limit)
Other Manufacturing News
JSE-listed Astrapak will sell specialised packaging systems manufacturer Knilam to Mapflex SA for R17.7-million. The proceeds would be used to reduce Astrapak’s current level of gearing.
Acting Transnet CEO Siyabonga Gama, who was appointed to the position following the surprise secondment of Brian Molefe to Eskom, has placed revenue diversification at the top of his list of immediate priorities, with the weak commodity outlook seen as having the...
Heineken NV, the world's third largest brewer, and Africa-focused trading firm CFAO will invest 100-billion CFA francs ($163.52-million) to build a brewery in Côte d'Ivoiret, a Heineken company official said on Wednesday. "We'll be operational in a year and a half...
Recent Research Reports
Steel 2015: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2015 report provides an overview of the key developments in the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon...
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
This Week's Magazine
Forest products group Sappi has confirmed the selection of its 25 MW biomass-to-power project, to be erected at its Ngodwana mill, in Mpumalanga, as a preferred bidder under the South African government’s Renewable Energy Independent Power Producer Procurement...
Information and communications technology (ICT) distributor DCC is making Windows- and Android-operating systems tablets available through retailers and education equipment suppliers to provide school children with affordable, high-performance education tools. The...
Another cement manufacturer is set to enter the Ugandan market, raising hopes that prices will come down and spur growth in the construction industry. National Cement, a Kenyan manufacturer, has unveiled plans to invest $195-million in a new manufacturing plant in...
With growth rates exceeding that in the developed world – at an average of between 4% and 5% between 2002 and 2014 – African countries provide investors with ample reason to tap into booming consumer demand says Manufacturing Circle executive director Coenraad...
The South African Chamber of Commerce and Industry’s (Sacci’s) Business Confidence Index (BCI) decreased by 3.7 index points month-on-month to 89.1 in March.