IMPROVEMENT OF THE ASPIRATION SYSTEM AND GAS CLEANING UNIT AT THE COKE SORTING SECTION OF THE COKE SHOP
DOI:
https://doi.org/10.32782/3041-2080/2024-2-14Keywords:
aspiration system, gas purification plant, coke dust, coke sorting section, energy consumption, energy efficiencyAbstract
The main problem at the coke sorting areas of coke shops is the presence of a large number of fugitive emission sources of suspended particulate matter, in particular, in the places of coke transfer, sorting, and conveyor belt transportation. The results of instrumental studies in the areas of intensive dust formation at the coke sorting section confirmed the actual efficiency of the existing aspiration system and gas cleaning unit. High dust content of the air before entering the group cyclone was detected, as well as a slight difference between the coke dust content in the air of the working areas during operation and when the gas cleaning unit was shut down. The main disadvantage of the air aspiration system from the dust formation zones is the need to transport the flow at a specified speed not less than the minimum required for the operation of the group cyclone. Most of the energy required for the operation of the smoke exhauster, which ensures the operation of the gas cleaning unit, is spent on overcoming local hydraulic resistance arising in the gas ducts, compensating for leaks in the gas ducts, and ensuring the gas flow rate required for normal operation of the cyclones. It is proposed to improve the existing aspiration system and gas cleaning unit at the coke sorting section by introducing a local dust shelter with dust extraction equipment that allows the captured dust to be returned to the technological process during filter regeneration. The reconstruction/replacement of the aspiration system and gas cleaning unit through the introduction of local dust extraction equipment at the coke sorting section of the coke shop will not only ensure air quality but also increase the energy efficiency of production, which is becoming increasingly important.
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