Device and method for increasing the internal surface of a compact coke charge in a receiving trough

In a coking device for coking of coal in a horizontal coke oven chamber of a heat-recovery or non-recovery coke oven bank, the coke oven chamber having a coke-bearing bottom, and optionally a sloped plate or a wharf between the coke oven chamber and a receiving container, the receiving container having a bottom, the receiving container provided on or in a coke quenching car moveable in parallel along the coke oven bank to receive a compact coke cake from a coke oven, the improvement comprising:

• increasing the exposed surface area of a compact coke cake by at least one structural member providing an unevenness of a minimum height of 20 mm arranged on the bottom of the receiving container, wherein the bottom surface of the receiving container is offset by from 20 to 400 mm below the coke-bearing bottom of the coke oven chamber or the sloped plate or wharf, wherein the receiving container having a bottom with the at least one structural member disposed thereon is arranged in a manner that the coke cake, when pushed from the coke oven chamber, slips out of the coke-oven chamber during the pushing operation and slides across the structural member.