For cleaning of high
temperature gases reverse air bag houses are widely used in the industry. Compared to the high pressure cleaning
systems, the reverse air cleaning system used in RABH is most suitable for
Woven and fragile high temperature filter media like fiber glass which can
withstand operating temperatures of 230 – 250 Deg C. RABHs are offered with offline cleaning
systems and hence normally will be in modular constructions.
Clair RABHs are offered with
both normal fiber glass bags and with fiber glass PTFE membrane filter media.
The optimal air to cloth ratios are selected depending on dust concentrations
and type of filter media.
RABH for Cement Kiln / Raw Mill exhaust gases
Inlet & outlet plenums are designed ensuring
uniform gas distribution across all the modules.
To ensure the uniform gas distribution, CFD studies are carried out
using software tools like FLUENT, ANSYS etc.
Casing & Hoppers:
Casing, Hoppers etc
are designed and manufactured and are fully leak proof thus avoiding the
ingress of false air. The valley angle of hoppers is maintained for easy
disposal of collected dust.
RABHs are offered with offline cleaning wherein one
module is under cleaning and other modules are in filtration mode. Each module
is provided with inlet butterfly damper and outlet puppet damper to ensure
isolation during the cleaning cycle. All the puppet dampers are operated
pneumatically through a control panel. All the dampers are manufactured with
highest quality standards to withstand high temperature and dusty operating
Clair has capability to design manufacture and
supply large size RABHs. It has supplied RABHs with a gas handling capacity of 4,
00,000 Am3/hr to 13,50,000 Am3/hr at 220 – 240 Deg. C