Dry hearth reverberatory type holding chamber aluminum or copper metal
reclamation/sweat furnaces in which no fluxing, degassing, or refining is
conducted, which operate according to the following conditions and limitations
of this section are permitted by rule.
(1) Scrap metal charges shall consist primarily of copper or
aluminum metal. Operation of the furnace for reclamation or lead, tin, zinc,
or magnesium metals is prohibited.
(2) The maximum furnace charging rate shall be 2,000 pounds
per hour or less.
(3) The furnace charge door shall remain closed except
during charging and furnace cleaning operations.
(4) The furnace shall be equipped with an afterburner
which will provide a minimum retention time of 0.1 second at a minimum temperature
of 1,300 degrees Fahrenheit for all furnace exhaust gases.
(5) The incineration of any insulated wire or cable containing
chlorine compounds in the insulation, such as polyvinyl chloride insulation,
is expressly prohibited.
(6) The owner or operator of the furnace shall initiate
and maintain a program of furnace operator training in the recognition of
chlorine-bearing wire or cable insulation and shall demonstrate, upon request
by the executive director, acceptable proficiency in the recognition of chlorine-bearing
wire or cable insulation such as polyvinyl chloride insulation.
(7) Fuel for the furnace shall be sweet natural gas as
defined in Chapter 101 of this title (relating to General Air Quality Rules)
or liquid petroleum gas, diesel, or Number 2 fuel oil.
(8) Before construction begins, the facility shall be
registered with the commission's Office of Permitting, Remediation, and Registration
in Austin using Form PI-7.