Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 218 - ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREA
Subpart E - SOLVENT CLEANING
Section 218.184 - Conveyorized Degreasing
Universal Citation: 35 IL Admin Code ยง 218.184
Current through Register Vol. 48, No. 38, September 20, 2024
a) Operating Requirements: No person shall operate a conveyorized degreaser unless:
1) Exhaust ventilation exceeding 20
cubic meters per minute per square meter (65 cubic feet per minute per square
foot) of area of loading and unloading opening is not used, unless necessary to
meet the requirements of the Occupational Safety and Health Act ( 29 U.S.C.
Section 651 et seq.);
2) Solvent
carryout emissions are minimized by:
A)
Racking parts for best drainage; and
B) Maintaining the vertical conveyor speed at
less than 3.3 m/min (11 ft/min);
3) Waste solvent is stored in covered
containers only and not disposed of in such a manner that more than 20% of the
waste solvent (by weight) is allowed to evaporate into the
atmosphere;
4) Solvent leaks are
repaired immediately;
5) Water is
not visually detectable in solvent exiting from the water separator;
and
6) Downtime covers are placed
over entrances and exits of conveyorized degreasers immediately after the
conveyors and exhausts are shut down and not removed until just before
start-up.
b) Equipment Requirements: No person shall operate a conveyorized degreaser unless:
1) The degreaser is equipped with a drying
tunnel, rotating (tumbling) basket or other equipment sufficient to prevent
cleaned parts from carrying out solvent liquid or vapor;
2) The degreaser is equipped with the
following switches:
A) One which shuts off
the sump heat source if the amount of condenser coolant is not sufficient to
maintain the designed vapor level;
B) One which shuts off the spray pump or the
conveyor if the vapor level drops more than 10 cm (4 in) below the bottom
condenser coil; and
C) One which
shuts off the sump heat source when the vapor level exceeds the design
level.
3) The degreaser
is equipped with openings for entrances and exits that silhouette workloads so
that the average clearance between the parts and the edge of the degreaser
opening is less than 10 cm (4 in) or less than 10 percent of the width of the
opening;
4) The degreaser is
equipped with downtime covers for closing off entrances and exits when the
degreaser is shut down; and
5) The
degreaser is equipped with one of the following control devices, if the
air/vapor interface is larger than 2.0 square meters (21.6 square feet):
A) A carbon adsorption system with
ventilation greater than or equal to 15 cubic meters per minute per square
meter (50 cubic feet per minute per square foot) of air/vapor area when
downtime covers are open, and exhausting less than 25 ppm of solvent by volume
averaged over a complete adsorption cycle; or
B) Any other equipment or system of
equivalent emission control as approved by the Agency, and further processed
consistent with Section
218.108
of this Part. Such equipment or system may include a refrigerated
chiller.
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