2.9
COAL HANDLING EQUIPMENT
Submit coal handling system manufacturer's data for the following:
a.
Railroad hopper car thawing system;
b.
Railroad hopper car shaker;
c.
Railroad hopper car puller;
d.
Coal scale;
e.
Belt scraper; and
f.
Coal dust suppression system.
2.9.1
Railroad Hopper Car Thawing System
**************************************************************************
NOTE: Pit type railcar thawing system is capable of
operating on natural gas, liquified petroleum gas or
No. 2 fuel oil. The radiant heat (infrared) type
railcar thawing system can only burn natural gas or
liquified petroleum gas or use electric resistance
heaters. The radiant heat (infrared) type provides
a slower method of thawing but causes less damage to
the railroad car finish and is preferred provided
natural gas or liquified petroleum gas or electrical
power is economically available and permitted by
current D.O.D. policy.
**************************************************************************
[Pit-type] [Prefabricated surface mounted enclosed type] [or electric
radiant type] hopper car thawing unit including burners, controls,
combustion air blowers, fuel storage and handling, and related work.
Design system to thaw 56 Mg, 71 Mg and 102 Mg 55 ton, 70 ton and 100 ton
capacity coal cars. System shall be capable of thawing [_____] bottom
hopper unloading coal cars simultaneously. Railroad hopper car thawing
system shall utilize [No. 2 fuel oil] [natural gas] [liquified petroleum
gas] as a fuel. Provide a sufficient number of heaters to have a minimum
heat input of 2198 kW 7,500,000 Btu/hr per car station, with heaters
distributed under hopper car, or under and beside hopper car, such that
entire car is heated. Locate [burner pits] [heater units] for even heating
of hopper cars without subjecting air hoses, air brake equipment, and
bearings to excessive heat.
[2.9.1.1
Pit-Type Railroad Hopper Car Thawing System
**************************************************************************
NOTE: Choose this subparagraph or the subparagraph
below entitled "Surface Mounted Enclosed Railroad
Hopper Car Thawing System."
**************************************************************************
a.
Pit-Type Thawing Unit: Pit-type hopper car thawing unit shall be
complete with a refractory lined steel box, burner assemblies,
steel burner enclosure with cover, valves, piping, and hinged main
pit protective covers. Each pit shall have the capacity to
generate 366 kW 1,250,000 Btu/hr when burning [No. 2 fuel oil]
SECTION 15501N
Page 67
Previous Page
