Coke oven waste gas waste heat utilization structure

CN224285472UActive Publication Date: 2026-05-26LINHUAN COKING

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: LINHUAN COKING
Filing Date: 2025-06-27
Publication Date: 2026-05-26

AI Technical Summary

Technical Problem

Coke oven exhaust contains toxic substances and the waste heat from the high-temperature exhaust is difficult to recover and utilize, and conventional filtration mechanisms are unable to achieve effective recovery.

Method used

Design a structure for utilizing waste heat from coke oven exhaust gas, including a base frame, filter plates, a waste heat recovery mechanism, and a water pump system. Through fan negative pressure guiding flue gas filtration, heat exchange tube heat exchange, water pump spraying cooling, and multi-stage dust removal and purification, waste heat recovery and multi-stage dust removal and purification are achieved.

Benefits of technology

It achieves efficient recovery of waste heat from coke oven exhaust gas, multi-stage dust removal and purification, and water resource recycling, ensuring stable system operation.

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Figure CN224285472U_ABST

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Abstract

The utility model relates to the technical field of coke oven waste gas, in particular to a coke oven waste gas waste heat utilization structure which comprises a base frame, a first filter plate is fixedly installed above the base frame through bolts, a fixedly-connected air inlet square pipe is arranged on one side of the base frame, and a fixedly-connected air collecting hood is arranged below the other end of the air inlet square pipe. A waste heat recovery mechanism is further arranged above the base frame and comprises a first shell. Primary filtering of large particles is achieved through the first filter plate, then high-temperature flue gas enters the heat exchange pipe for heat exchange, waste heat is absorbed through external circulating water to achieve energy recovery, and meanwhile accumulated dust attached to the surface of the heat exchange pipe is removed through the scraper driven by the lead screw motor; the cooled flue gas sprays water mist through a spray head driven by a water pump, so that secondary cooling and dust collection are realized, and dust-containing wastewater is filtered by a filter plate II and then is recycled through a water outlet pipe; therefore, high-efficiency recovery of waste heat of the high-temperature flue gas, multi-stage dust removal and purification and cyclic utilization of water resources are realized.

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