Hybrid WW CG SH
The Hybrid WW CG SH design is suitable for applications
to produce high pressure steam or hot water in ranges from 3,450 - 60,000
lbs/hr (3.4 mmBTU - 60 mmBTU) output from 100 up to 400 PSI. This system
is designed by HBC to combine the best technologies from the "old school" of
coal combustion and the latest advanced combustion control technologies.
The new HBC chain grate-type stoker system permits either bituminous coal
washed singles or smalls to be combusted in an efficient manner with the
added advantage of automatic de-ashing. This combination is particularly
suitable for industrial heating and process steam applications. The boiler
vessel is a two pass hybrid design incorporating a water tubed boiler-type
water membrane and a two-pass fire tube scotch marine vessel. This vessel's
advantages over standard water tube boilers include much larger steam disengagement
area providing high quality steam, larger steam storage capability for quicker
response to sudden steam demand and much larger thermal storage that provides
fast demand response times and safer operation. This system also incorporates
extended water wall membranes that extend down the gasification/combustion
chambers side walls thereby greatly reducing refractory requirements which
is essential when utilizing highly volatile solid fuels. The addition of
a steam superheater allows this system to provide hotter steam (an additional
+100º F) that can increase electrical cogeneration output over standard steam
applications and specialized plant process applications.
