BNP
®
6012 and 7212 SUCTION BLAST CABINETS
Page 3
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 27723, Rev. B 04/19
Figure 1
1.5
Theory of Operation
1.5.1
Once the components are correctly set up and
turned on, the cabinet is then ready for operation by
actuation of the foot pedal. Fully depressing down on the
foot pedal causes air to flow through the blast gun. The
partial vacuum created by air moving through the gun
draws media into the blast-gun mixing chamber. The
media mixes with the air stream and is propelled out the
nozzle. After striking the object being blasted, the blast
media, fines, dust, and byproducts generated by blasting
fall through the grate into the cabinet hoppers. These
particles are then drawn into the reclaimer for
separation. Dust and fines are first separated from
reusable media and pass into the dust collector. Next, the
media is screened for oversize particles and returned to
the reclaimer hopper for reuse. Dust and fines entering
the dust collector are removed from the air stream as
they pass through the filters, discharging clean air.
When the foot pedal is released, blasting stops.
1.6
Reverse-Pulse Dust Collector Options
WARNING
All dust is hazardous to breathe.
Emissions can
occur from the dust collection system. Identify
all materials that are to be removed by blasting;
if any toxic materials such as lead dust or dust
from other heavy metals and corrosives, or any
other toxic materials are being removed, use a
HEPA afterfilter to assist in maintaining
inhalation hazards below the permissible
exposure limits (PELs). Prolonged exposure to
any dust can result in serious lung disease and
death. Short-term ingestion of toxic materials
can cause serious respiratory injury or death.
Filtration may not be adequate in reducing all
inhalation hazards. It remains the employer’s or
user’s responsibility to ensure all emissions are
safe to breathe.
Metering Valve
Dust Collector Damper
External Adjustable Vortex
(Optional on system with CDC-1 Dust Collector)
Intake Stack w/Damper
Debris Screen
Flex Hose
Reclaimer
Pilot Regulator
(blast pressure)
Blow-Off Nozzle
Foot Pedal
Air Filter (Attachment for
compressed-air supply)
Pilot-Operated Pressure Regulator
Mounted on back of cabinet
Media Hose
Air Hose
Blow-Off Hose
BNP Blast Gun
CDC-1 Dust Collector
Dust Drum
LED Light Assemblies
On-Off Switches
