Ageing Cum Annealing Furnace for Aluminum
SHIVANG FURNACES has a full range of batch type bogie hearth furnaces up to a capacity of 50 MT for Annealing of aluminium alloy conductors and Ageing of AAAC conductors and aluminum alloy wire loaded on drums.
Hot air recirculation inside the furnace is done by efficient axial or centrifugal type recirculation fan, which can be with two-speed motor or with VF drive for low power consumption. Stainless steel baffle for proper hot air circulation inside the annealing furnace is provided. Forced air-cooling arrangement with the help of centrifugal fan can be offered.
The aluminum annealing furnace can be provided with electrical heating system through strip type heating elements located along with the sidewalls of the furnace. The heating elements of the furnace are suitably divided into number of heating zones with each zone of having their bank of heater cartridges. Each bank heater cartridges shall be connected either in STAR/DELTA or Parallel STAR/DELTA groups to have minimum number of heaters per phase per group so that the heater of groups can be isolated, without switching off the furnace in case they need replacement
Description
SHIVANG FURNACES annealing furnace are lined with a combination of ceramic fibre board backed-up by ceramic fibre blankets of suitable grade with stainless steel studs for side wall, roof and doors to minimize the skin temperature.
For electrically heated furnace, the process control shall be based on heat head ratio control philosophy with thyristor heater controllers for better temperature control and energy efficiency. SHIVANG FURNACES electrically heated furnaces can be offered with 100% thyristor controllers or 30% thyristor with 70% STAR-OFF mode for better energy efficiency during heating & soaking.
As an alternate to fuel fired heating system, the furnaces are fired with high efficiency burners supported by a full complement of combustion system consisting of combustion fan, atomizing fan, oil heating and pumping systems and/or gas trains. In addition auto ignition, flame failure safety and complete control systems are offered. Practically any type of liquid or gaseous fuel can be used viz. Light Diesel Oil, LPG, Natural Gas singly or a combination of any oil or gas in case of dual fired furnaces.
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