Lindberg MPH, Riverside, Mich., has shipped two 18-tube gas-fired immersion tube lead melting and holding furnaces to a supplier of the battery industry. The immersion tube furnaces will be used in the production of lead plates for automotive batteries.
The maximum temperature rating for each furnace is 900°F. The front process wells are 30 in. x 15 ft 2 in. x 39 in. The carbon-steel plate welded design of this system facilitates energy-efficient melting and holding of the lead, and precise temperature control of the casting process.
Each furnace incorporates eighteen immersion tubes, each with its own burner and ratio regulator control. The molten lead capacity is equivalent to 290,000 pounds, and the system is rated at 6,000,000 BTU/hr. Each furnace is controlled by a programmable logic controller and includes a touchscreen HMI. These furnaces include a sow platform for safe loading of the lead ingots and sows into the bath.
“We designed these immersion tube furnaces to give the customer precise temperature control over the process and to run efficiently to save on energy costs,” says Andrew Paul, Sales Engineer.
Each burner has its own gas/air ratio regulator, assuring the correct air and gas mixture for dependable ignition and efficient combustion. On-off firing allows for a wide input range, virtually eliminating temperature creep. The sow cradle protects the immersion tubes from possible damage from charging of large and heavy lead hogs. The hog ramp feeding onto the sow cradle allows for automatic loading of lead hogs and gently slides the pigs into the bath.
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