An integrated purification and energy-saving system and process

Abstract

The invention discloses an integrated purification energy-saving system which comprises a waste heat utilizing system and a smoke cleaning system. The waste heat utilizing system is connected with the smoke cleaning system through a flue and a transfer device and comprises an external heated regenerating furnace connected to the flue in series, the external heated regenerating furnace comprises an external heated hearth and an internal material channel, the external heated hearth is communicated with a complementary combustion device and a waste heat boiler, the internal material channel is communicated with steam from the waste heat boiler and a tail gas treatment device, a saturated coke hopper is arranged above the internal material channel, and a cooling device and a first screening dust collection device are arranged below the internal material channel. The smoke cleaning system comprises an integrated cleaning device, a new coke bin is arranged above the integrated cleaning device, and a saturated coke discharging device and a second screening dust collection device are arranged below the integrated cleaning device. The transfer device comprises a driving device and a coke conveying pipeline, the coke conveying pipeline comprises a main coke conveying channel, a switching switch is arranged at the output end of the main coke conveying channel, two coke conveying branches are formed at the output end of the main coke conveying channel, the first coke conveying branch is communicated with the saturated coke hopper, and the second coke conveying branch is communicated with the new coke bin.

Description

technical field [0001] The invention relates to a flue gas purification device, in particular to a flue gas purification system and process for coke ovens or pyrolysis furnaces. Background technique [0002] Existing coke ovens or pyrolysis furnaces generate a large amount of heat for processing and production in the ironmaking sintering process and thermal power generation, but the waste heat after processing is usually wasted, correspondingly wasting energy, and in industrial / domestic waste incinerators The flue gas emitted in the air cannot be directly discharged into the atmosphere, and activated coke needs to be used for desulfurization and purification. The activated coke absorbs pollutants to form saturated coke, which is usually treated as waste, wasting a lot of resources. Contents of the invention [0003] The purpose of the invention of this application is to solve the above-mentioned current technical problems, and provide an integrated purification and energy-...

AI Technical Summary

Problems solved by technology

[0002] Existing coke ovens or pyrolysis furnaces generate a large amount of heat for processing and production in the ironmaking sintering process and thermal power generation, but the waste heat after processing is usually wasted, correspondingly wasting energy, and in industrial / domestic waste incinerators The flue gas emitted in the air cannot be directly discharged into the atmosphere, and activated coke needs to be used for desulfurization and purification. The activated coke absorbs pollutants and forms saturated coke. Usually saturated coke is treated as waste, wasting a lot of resources

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