Arrangement of a coke drum and of a coke crushing unit, for use in a closed, gas-tight system for gaining sellable petroleum coke pieces out of solidified petroleum coke in a coke drum unit and a closed, gas-tight system comprising such arrangement

A system comprising a coke drum unit and of a coke crushing unit, for use in a closed, gastight system for gaining sellable petroleum coke pieces out of solidified petroleum coke in the coke drum unit, comprising:

• the coke drum unit containing solidified petroleum coke;
• the coke crushing unit for crushing the petroleum coke into sellable petroleum coke pieces arranged below the coke drum unit;
• wherein
• a lower funnel is connected to the coke crushing unit and has an upper end portion;
• an upper funnel is connected to the lower end of the coke drum unit and has a lower end portion with a smaller diameter than the upper end portion of the lower funnel;
• the lower end portion of the upper funnel extends into the upper end portion of the lower funnel;
• and
• at least one circumferential sealing element provides a gastight seal between the upper funnel and the lower funnel and allowing for an axial and a radial movement of the upper funnel with respect to the lower funnel;
• wherein the upper end portion of the lower funnel comprises a load bearing flange at an upper end;
• wherein the lower end portion of the upper funnel comprises
• an upper load distributing flange arranged outside of and firmly connected to the upper funnel, and
• a lower support flange resting on the load bearing flange of the upper end portion of the lower funnel,
• wherein at least two spring elements are configured to exert a force on the upper load-distributing flange and the lower support flange, the spring elements are arranged between the upper load distributing flange and the lower support flange;
• and
• wherein the at least one circumferential sealing element comprises at least one of
• a first circumferential sealing element between the lower support flange of the lower end portion of the upper funnel and the outer circumference of the upper funnel;
• and
• a second circumferential sealing element comprising a circumferential sealing ring between the lower support flange of the lower end portion of the upper funnel and the load bearing flange of the upper end portion of the lower funnel.