This
Petroleum Coke Mill baghouse was specially designed and recently
supplied to a cement company. This plant uses an indirect-fired milling
system for firing the kiln.
With an indirect fired system, all the coke is pulverized by the mill
under a high negative static pressure. The milled particles are
fluidized, ducted to an air classifier where
those particles greater than the cut diameter are sent back to the
milling machine, and the smaller particles are transported through the
"Pressure Relief Hood" to the baghouse.
The baghouse captures all the coke particles and transfers them by
screw conveyor and rotary airlocks to the pulverized coke silos. 
This "Process Dust Collector" is a key component of the
pulverized coke mill. The baghouse is designed to handle a very heavy
inlet dust loading, produce a low differential pressure drop, and
structurally withstand and vent an explosion. To protect the ductwork,
baghouse, and other system components there are several proprietary
design components for this system. The first is the Pressure Relief
Hood located adjacent to the baghouse. This large resealable hood is
designed to open when an explosion (deflagration) occurs in the system.
This relieves the explosive pressure thereby assuring that the system
components are not damaged. Also, the baghouse has specially engineered
resealable explosion doors for releasing the explosive pressures inside
the baghouse. Lastly, the proprietary grounding system and fabric
filter removes the potential static charges that can build up in the
system.
This Primary
Clarifier was supplied recently to a company with seven (7) wet
scrubbers. Primary clarifiers are used to conserve water by allowing
particulate to settle out from the scrubber recirculation water. This
clarifier is a drag-bar type settling tank utilizing a low-profile
design, which maximizes the settling area for the available floor
space.
The
incoming scrubber recirculation water enters the clarifier through the
baffled center trough. This trough distributes the liquid throughout
the tank while minimizing surface turbulence. Note the two (2)
V-notched weir sections that are designed to keep an accurate liquid
level in the clarifier based on the incoming liquid flow rate. The weir
sections are designed to permit clarified liquid to spill over into the
respective flow channels. The clarified scrubber recirculation water
then flows through these channels into the clearwell and is pumped back
to the scrubbers.
Settled
particulate is conveyed from the bottom of the tank by means of a
heavy-duty drag chain/angle flight system. This drag-bar conveyor
consists of several submerged idler shafts with guide sprockets that
properly route the attached angle flights through the tank bottom and
up the sloped plate to discharge the material at the head section. The
heavy-duty drag chain is powered by means of a single drive shaft at
the top of the sloped tank, which in turn is driven by a motor-operated
gear reducer.
|
Jardar
Systems 3266 RFD Middlesax Drive, Long Grove, IL 60047 |