http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.38Change: 0.05
R/$ = 11.57Change: -0.03
Au 1276.24 $/ozChange: -2.53
Pt 1262.50 $/ozChange: -7.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Sep 21, 2012

Manufacturer launches new coal-fired boiler

Back
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
Africa|Cleaning|CoAL|Components|Design|Pumps|Shell|Systems|Water|Africa||Cleaning|Energy|Equipment|Service|Systems|Power|Water
africa-company|bosch-partnership|bosch-thermotechnology|cleaning-company|coal|components|design|dryden-combustion-company|pumps|shell|systems-company|water-company|africa|south-africa|cleaning|energy|equipment|service|systems|gordon-slater|power|sue-kiley|water
© Reuse this



Boiler reconditioner and manufacturer Dryden Combustion launched its new Mk7 coal-fired boiler in South Africa this month.

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.
“Efficiencies at full-rated capacity of up to 79% are attainable, with washed pea coal having a gross calorific value of 27 500 kJ/kg,” Kiley says.

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.
“Direct coupled twin multistage boiler feed pumps are mounted on the boiler subframe, ensuring 100% standby for boiler feedwater.

“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.


Dryden Combustion was recently appointed as a partner and South African marketer and distributor of Bosch Thermotechnology.

“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 Heating and Cooling News
Germany-based refrigeration company KTI-Plersch Kältetechnik announced last month that it received a large order to cool a South African gold mine with a surface ice system, which will be used to cool the two-kilometre-deep mine and will provide a total capacity of 8...
The governate of the Vatican City State and heating, ventilating and air conditioning (HVAC) technology company Carrier announced the start of the installation of a landmark HVAC system for the Sistine Chapel, in the Vatican, in June, which is specially designed to...
CONTROLLER CHALLENGES The biggest challenge during the project was linking the controls of the digital variable multi system to the direct expansion air-handling units
Johannesburg-based air-conditioning solutions provider Fourways Airconditioning is supplying heating, ventilation and air conditioning (HVAC) equipment to private hospital chain Netcare’s Polokwane hospital, in Limpopo. The project is expected to be completed by the...
More
 
 
Latest News
JSE-listed Hudaco Industries’ share price climbed nearly 16% on Friday afternoon as the company announced that it would bring an end to a years-long tax challenges with the South African Revenue Service (Sars). In a trading statement to shareholders, Hudaco revealed...
President Jacob Zuma
South Africa was open for more investment and the country offered investment opportunities that no “wise” businessperson should miss, President Jacob Zuma told captains of commerce and industry during the yearly Business Interaction Group meeting on the sidelines of...
The Department of Trade and Industry (DTI) has rejected claims by black economic-empowerment (BEE) advisory firm EconoBEE that there is likely to be a delay to the scheduled May 1 implementation of the revised BEE Codes of Good Practise. “We are on track for the May...
More
 
 
Recent Research Reports
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.
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
 
 
 
 
 
This Week's Magazine
BRUCE BRADFORD The 3D printers have a clear upgrade path to eventually print in wood, ceramics and metal-alloys
Three-dimensional (3D) printers being sold in South Africa by electronics distributor Rectron currently print in two types of plastic, but have a clear upgrade path over the next five years to eventually print in wood, ceramics and metal-alloy materials, says Rectron...
The world’s two dominant commercial aircraft manufacturers, Airbus of Europe and Boeing of the US, both recently announced that they had made record aircraft deliveries in 2014. Boeing set a global record for the industry with 723 commercial aircraft delivered, while...
The Western Cape is shifting further into the renewable-energy space with the official opening of a factory specialising in solar inverters, a key component of solar photovoltaic (PV) plants. The investment in the manufacturing facility in Cape Town aims to boost the...
Business Leadership South Africa (BLSA) last month welcomed Cabinet’s establishment of a technical team war room to undertake various interventions to improve electricity supply security over the short- and medium-term, but added that the private sector also had a...
Despite a rapid rise in mobile connections and the economic and social benefits of such connectivity, more than half of the world ended 2014 unconnected. For this reason, industry commentators believe the biggest impact of mobile technology is still to come –...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks