Patent GB-283191-A (GB)
Title: Improvements in vertical coking retort ovens
IPC: C10B3/00
Filed: 1927-10-05
Abstract: 283,191. Koppers Co., (Assignees of Ackeren, J. van). Jan. 8, 1927, [Convention date]. Coke ovens.-A tapering vertical coke oven is heated by continuous vertical up-burning flues having sections supplied with varying quantities of fuel according to the varying cross-section of the oven. As shown in Fig. 3 the heating-flues on opposite sides of alternate ovens 11 are connected by cross-over flues 53, and each heating- flue has upper and lower sections 34, 33 respectively, connected by ports 48 in the brickwork 35, the arrangement being such that the sections form a substantially continuous flue. Beneath each heating-wall are parallel flues 36, 37 connected to corresponding regenerators 22, Fig. 1, arranged beneath and at one side of the battery, and each of these flues is in communication with both sections of each heating-flue, the connection to the lower sections being through ports 36<1>, 37<1>, and to the'upper sections through conduits 38 in the partition walls between the flues, and ports 39. The conduits 38 communicate alternately with the flues 36, 37, and all the conduits, with the exception of the two end ones, are forked at their upper ends so that they communicate with two adjacent upper sections. By this arrangedment preheated lean gas and air can be supplied from the two flues 36, 37 to both sections of all the flues of a heating-wall, and the supplies to the individual ports and conduits are controlled by damper blocks 41 located in grooves 42 above the flues 36, 37. Coke oven or other rich gas may be supplied unheated through nozzles 45 and 46. The flow of products of combustion to and from the cross-over ducts 53 is controlled by sliding blocks 50 at the upper ends of the flues. The regenerators 22 are arranged in pairs and each pair is in communication with the heating-walls through an elbow pipe 56 having two ducts 57 therein, which are continued by passageways formed in refractory material filled in between the buck-stays, Fig. 8. The two regenerators of each pair are connected to adjacent heating-walls so that both are operating under the same conditions. Casings and walls.-The retort bench is carried by a wall 3 and a beam 6 supported on columns 2. Between the beam and the wall extend hollow castings 60, which constitute supporting frames for the oven structure, tie rods 61, and castings 62, which are provided to support the discharging-apparatus. Discharging.-The door mechanism shown in Figs. 10 and 11 comprises an elongated trough frame 64 having outwardly extending lugs 65 for connection to eye-bolts 63 pivoted to the castings 62, the frame 64 forming a deep trough 67 at the ends and one side, and a shallow trough at the other side. The door 68 is of part cylindrical form, and is supported on the ends of the frame 64 by bearing-members 70, 71 to which the door is rigidly secured. The trough is filled with ammoniacal liquor supplied through sprays 74, and a gas tight connection between the oven and the trough is provided by a dip-plate 76. The lower side of the space 78 in the casting 60 is closed by a plate 77 and the dip-plate 76, and provides a chamber through which cooling-water may be passed.