Abstract: Preheated bulk material capable of coking is quenched by flowing the quenching liquid through the loose bulk material, whereby the bulk material is substantially closed off relative to the atmosphere. The liquid is applied to the top of the bulk material in a quenching chamber which is closed at its top by a sealed cover and which has an open grating for a horizontal bottom. The steam formed by the quenching liquid and, if formed, any excess quenching liquid are drawn off from the quenching chamber through the open grating. The total quantity of quenching liquid to be supplied as a function of time is controlled by a valve through a control signal depending on the chemical and physical properties constituting bulk material characteristics prior to the heating of the coal. The control signal also takes into account the type of the intended heat treatment in the form of quenching characteristics.

Abstract: Heated bulk material, such as coke, is quenched by a liquid flowing from the top downwardly through the bulk material. During the quenching the bulk material is closed off from the atmosphere. The steam forming from the quenching liquid is carried off downwardly in parallel flow with the quenching liquid. For this purpose the amount of quenching liquid distributed over the bulk material is so measured or dosed that it participates completely in the quenching process, whereby the quenching liquid evaporates completely except for a specific residual moisture in the coke. The flow resistance which varies over the base surface of the bulk material is compensated by a carry-off resistance which is inversely proportional to the respective bulk material height. The varying of the flow resistance is due to a bulk material height which changes from one side of the quenching container to the opposite side as a result of an inclined container bottom.

Abstract: In the present method the bulk material, especially coke, is maintained at a substantially constant level on a substantially horizontal support surface. The quenching liquid is permitted to flow uniformly through the bulk material for about 45 to 90 seconds until the vapor temperature is cooled down to at least 400.degree.C. The quantity of the quenching liquid which is uniformly distributed over the bulk material is selected so that it evaporates substantially completely, except for a small moisture content in the quenched material. The present bulk material quenching apparatus has a fireproof container resting on a supporting box, the top of which is a grid structure which simultaneously forms a permeable bottom for the quenching container which is provided with a tightly closing cover. A pipe conduit is connected to the cover which has a plurality of conduit outlet openings directed into the container. The box on which the container rests has at least one hinged side wall.