Process and device for recovering complementary energy of silicon smelting furnace
A technology for residual energy recovery and smelting furnaces, which is applied to the improvement of process efficiency, furnaces, energy industries, etc., can solve the problems of only about 50% to 65%, loss, and ineffective use of chemical energy, and achieve thermal energy The effect of sufficient utilization and wide application
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[0025] The present invention is aimed at figure 1 The process and device proposed for the silicon smelting furnace shown. The silicon smelting furnace includes one layer of raw material reaction area 10 , two layers of furnace clearance area 20 , and three layers of furnace cover 30 .
[0026] 1. Process
[0027] The present invention is a silicon smelting furnace residual energy recovery process: (1) installing a radiant heating surface in the clearance area 20 of the furnace on the second floor to lower the temperature of the flue gas in the silicon smelting furnace, protect the electrodes and partially recover the exhaust heat of the smelting furnace; (2) Open the air inlet blast at the lower part of the furnace clearance area 20, reduce the furnace smoke temperature again to protect the electrodes, and burn the CO gas in the exhaust gas to recover chemical energy; (3) at the flue gas outlet of the three-layer furnace cover 30 Install a waste heat boiler to recover the wa...
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