Mine heat furnace kiln waste heat recycling system
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A technology of waste heat recovery system and submerged arc furnace, applied in the direction of furnace, preheating, furnace components, etc., can solve the problems of waste, dust cleaning, unsatisfactory heat absorption effect of heating surface, environmental heat pollution, etc.
Inactive Publication Date: 2016-06-29
南通万达能源动力科技有限公司
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[0002] In the production process of existing submerged arc furnaces, on the one hand, part of the high-temperature tail gas of the furnace is mainly discharged directly by air-cooling technology, the waste heat energy is zero utilized, and the smoke and dust are not treated. The discharged flue gas has a high calorific value and contains a large amount of SiO 2 dust, while SiO 2 Dust is an additive for materials such as construction industry, ceramics, chemical industry and aviation. Direct discharge causes a large amount of energy loss, environmental heat pollution, ash pollution and waste of silicon resources; , because the dust in the waste heat flue gas has strong heat storage and adhesion, the effect of dust removal and heat absorption on the heating surface is not ideal; low-parameter systems are generally used, and the thermal efficiency of the entire system is low; horizontal arrangements are usually adopted, and the evaporation system adopts auxiliary circulation Pump forced circulation mode, boiler operation and maintenance costs are high, and the horizontal layout occupies a large area and high economic cost
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[0014] Such as figure 1 The shown waste heat recovery system of a submerged arc furnace includes an inlet flue 1, a water-cooling passage 2, a high-temperature superheater 3, a low-temperature superheater 4, a temperature reduction adjustment device 5, a high-temperature evaporator 6, a diversion flue 7, and a horizontal Flue 8, low temperature evaporator module 9, economizer module 10, water heater module 11, outlet flue 12, drum 13, steel frame 14, shock wave soot blowing device 15, steel brush soot cleaning device 16, ash hopper 17, ash discharge device 18.
[0015] The waste heat recovery system of the submerged arc furnace is arranged in an L shape, the inlet flue 1 and the water cooling channel 2, the water cooling channel 2 and the turning flue 7, the turning flue 7 and the horizontal flue 8, the horizontal flue 8 and the outlet flue 12, The outlet flue 12 is connected with the pollutant co-removal device 44 , and the pollutant co-removal device 44 is connected with th...
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Abstract
The invention discloses a mine heat furnace kiln waste heat recycling system which comprises an inlet flue, a water cooling channel, a high-temperature superheater, a low-temperature superheater, a temperature reduction adjusting device, a high-temperature evaporator, a reversing flue, a horizontal flue, a low-temperature evaporator module, a coal economizer module, a water heater module, an outlet flue, a boiler barrel, a steel frame, a shock wave dust blowing device, a steel brush dust removing device, a dust falling hopper, a dust discharging device, a pollutant cooperative releasing device and a tail flue. The mine heat furnace kiln waste heat recycling system has the beneficial effects that the mine heat furnace kiln waste heat recycling system is in an L shape overall, design is reasonable, installation is rapid, the structure is compact, the performance is reliable, a dust removing effect is good, the waste heat recycling heat efficiency is high, and ultra-low pollutant emission is achieved.
Description
Technical field: [0001] The invention relates to a waste heat recovery system for recovering high and low temperature waste heat flue gas energy generated in the production process of submerged arc furnaces and kilns to generate steam for power generation or self-serving electricity. Background technique: [0002] In the production process of existing submerged arc furnaces, on the one hand, part of the high-temperature tail gas of the furnace is mainly discharged directly by air-cooling technology, the waste heat energy is zero utilized, and the smoke and dust are not treated. SiO 2 dust, while SiO 2 Dust is an additive for materials such as construction industry, ceramics, chemical industry and aviation. Direct discharge causes a large amount of energy loss, environmental heat pollution, ash pollution and waste of silicon resources; , because the dust in the waste heat flue gas has strong heat storage and adhesion, the effect of dust removal and heat absorption on the he...
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