Lead paste smelting smoke denitration treatment system
A lead paste smelting smoke denitration treatment system is characterized in that the smoke of a rotary furnace is cooled by a water tank and a flue and then enters a smoke preheater to exchange heatwith the smoke entering a denitration tower, the smoke coming out of the preheater is cooled by a sur...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
21.05.2019
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Subjects | |
Online Access | Get full text |
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Summary: | A lead paste smelting smoke denitration treatment system is characterized in that the smoke of a rotary furnace is cooled by a water tank and a flue and then enters a smoke preheater to exchange heatwith the smoke entering a denitration tower, the smoke coming out of the preheater is cooled by a surface cooler until the smoke temperature reaches 200 DEG C and then enters a cloth bag dust collector for dust removal, the smoke is subjected to dust removal, then enters a three-stage alkali liquor spraying denitration tower for denitration, exchanges heat with denitration tail gas to raise the temperature through a GGH heat exchanger, then enters the smoke preheater to exchange heat with the smoke of the rotary furnace to raise the temperature, is finally heated to 260-330 DEG C by a combustor, enters the denitration tower to be evenly mixed with ammonia gas sprayed out of an ammonia gas spraying system and then enters a catalysis layer for the denitration reaction, and the purified smokeis cooled to be 80 DEG C |
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Bibliography: | Application Number: CN201910213420 |