Patent GB-486583-A (GB)
Title: An improved coking plant
IPC: C10B21/10
Filed: 1936-09-07
Abstract: 486,583. Coke ovens. PUENING, F. Sept. 7, 1936, No. 24412. Convention date, Sept. 7, 1935. [Classes 51 (i), 51 (ii), and 55 (i)] [Also in Group XI] In a coke oven having compartmented iron heating-walls a large number of small jets on horizontal burner tubes are distributed in groups over the height and width of the walls. As shown in Fig. I in connection with an oven with movable heating-walls 1 compartments are formed by horizontal and vertical partitions 20 and 46, 47, 48, and the burner tubes may either be fixed in relation to the heating-walls as shown for the two upper tubes 26, in which case there is a group of jets for each compartment, or may be longitudinally adjustable, as shown for the lower tubes 25, so that one set of jets can serve alternatively two horizontally adjacent compartments. The combustion products circulate within the heating-wall, and are exhausted from the lower end through the vertical pipe 10 and offtake connection 27. Each heating-wall is suspended by bolts 2 from a beam 3 having U-shaped extensions 7, 8, which dip into water-seal troughs 15 and carry rollers 9, 11 running on rails 12, 13. The extension 7 is pivoted on the axis 21, and the extension 8 carries an operating handle or is connected to some mechanical apparatus by which the wall can be moved through a small angle about the pivot when it is desired to discharge the coke. The coking-chambers are closed by a cover 17 sealed by the troughs 15. The burner tubes extend through passages 24, and their movement with the heating- wall is allowed for by the stuffing-box arrangement shown in Fig. 4, between tubular members 32, 41 carried respectively by the heating- wall and the fixed wall of the setting. This comprises two packings 43, 37, which are pressed respectively against a ring 42 on the fixed tube 41, and the outer surface of the tube 32, by adjustable yoke pieces 44 acting through the rings 35, 36. A part spherical bearing-surface 38 may be provided for the packing 37. A similar sealing-arrangement is provided in connection with the offtake 27. The adjustable burner tubes 25 are carried by two sets of vertical gas and air pipes 54, 55, which are so connected and operated that the burner tubes in adjacent heating-walls are in opposite phase. The pipes 54, 55 are suspended from the pivot 72, and are moved to-and-fro by power-actuated racks 67 acting through pinions 66, cross-heads 63 and links 61, 62. The burners preferably operate on the surface combustion principle and as shown in Figs. 7 and 8, comprise nozzles 95 extending upwards from a gas pipe 26 to refractory members 96 each having a baffle 98 vertically above its associated nozzle. To minimize cracking of the gas, the pipe 26 is enclosed in a box 89 packed with heat-insulating material, and cooling pipes 91, 92, which may supply air for combustion, are provided. In a modification, Figs. 5 and 6, the heating walls are compartmented by horizontal partitions 84, and the combustion products pass downwards through apertures adjacent the coking spaces to the lowermost compartment 79 from which they are exhausted. The partitions are supported on ledges 84, and are held in position by bolts 85. The heating- walls may have vertical ribs 86, which interfit to divide the coking space into cells, and the width of the space and the distance apart of the ribs are such that coke pieces of a desired size, e.g. 4 x 6 cm. cross-section are obtained. Specification 465,352 is referred to.