Hartung, Kuhn & Co Maschinenfabrik Gmbh

Richard A Jung

A process for utilizing waste heat and producing water gas during cooling of red-hot coke, in two stages, is indicated. In a first, dry cooling stage, a mixture of water gas and steam passes the coke charge, is recooled in a heat sink and recirculated into the first cooling stage, whereby it is possible to take off a part quantity of the gas mixture. In a second, wet cooling stage, water is fed into a quench zone and the steam formed is passed through the coke charge partially into the first cooling stage and partially released into the surroundings or fed back into the second cooling stage or partly released into the surroundings and partly fed back into the second cooling stage. Both the mixture of water gas and steam in the first cooling stage and the quench water or the steam formed from it in the second cooling stage are passed through the coke charge from the inside outwards.

Process for utilizing waste heat and producing water gas during the

A process for utilizing waste heat and for obtaining water gas during the cooling of incandescent coke ejected from a chamber oven is described, this process being in two stages. In the first stage, the coke is dry-cooled with a mixture of water gas and water vapor as the cooling gas. This is circulated, and from the circuit the desired waste heat and the desired water gas are extracted. In the second stage, the coke is wet-cooled with water. The water vapor formed is taken off and returned to the environment and/or to the second stage. An apparatus is described for carrying out the process, and this apparatus has, located under one another, a filling shaft (1), a pre-chamber (2), a cooling chamber (3), a quenching chamber (4) with a water-spray device (5), an extraction housing (6) and a discharge shaft (7), and is equipped with a cooling-gas discharge line (19) leading away from the cooling chamber (3) and, in succession, a coarse separator (20), a heat sink (21), a blower (23), a cooling-gas delivery line (25) to the cooling chamber (3), an extraction line (26) leading away from the cooling-gas delivery line (25) with a throttling device (27), and a take-off line (34) which leads away from the extraction housing (6) and which leads to a cyclone separator (35), a blower (36) and an exhaust steam pipe (38) with a throttling device (37) and/or to a return line (39) with a throttling device (40).

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Gummersbach, Germany

Richard A Jung