Patent GB-744347-A (GB)
Title: Improvements in or relating to coke oven charging apparatus
IPC: C10B31/08
Filed: 1953-11-16
Abstract: 744,347. Charging coke ovens. KOPPERS CO., Inc. Nov. 16, 1953 [March 12, 1953], No. 31745/53. Class 51 (2). Apparatus for charging and levelling a horizontal coke oven battery comprises a carriage 39 reciprocable longitudinally in front of an oven 21 and carrying a coal hopper 44, a rotary charging device 45 and a charging tube 46 which is inserted through the leveller doorway 29, and a traction unit 40 running between a series of coal stages 37 and the ovens 21 and supporting the carriage 39, a superstructure 54 carrying the tube 46, a spillage hopper 55 with a trough conveying system 56 feeding back to the hopper 44, and an operating cab 50 from which movement of the traction unit 40, the carriage 39, the drum 45 and the tube 46 is controlled. The rotary charging device 45, Fig. 6, comprises a casing 62 defining with the rim 61 of a spoked wheel 58 on annular space 63, the said rim 61 being formed with slots 60 in which are disposed blades 59 normally moving in the space 63 to convey the charge, but being caused to retract near the coal outlet 77 by cams 71 engaging a cam track 78. The inlet 82 is connected to the hopper 44 and the outlet, which has a baffle plate 76 bearing against the rim 61, is connected to the charging tube 46. The wheel spokes 58 revolve in an inner chamber 64 defined by 'a stationary casing to which the annular casing 62 is attached, and coal leaking from the space 63 into this chamber is impelled by peripheral blades on the spokes through shoots 81 on opposite sides of the space 63 into the trough conveying system 56. The tube 46, which takes the place of the conventional leveller bar, is fabricated rectangular in cross-section from stainless steel plate, and is supported on rollers 47 carried on arms which fold up near the front of the machine, Fig. 10 (not shown), allowing the rollers to stack themselves on a ramp 104. The rollers engage rails 53 forming part of the superstructure 54, which also carries a forward tube-supporting roller 106 near the front of the oven. The tube 46 advances slowly across the oven 21 on top of coal it has charged, the rate of coal feed being decelerated as it approaches the coke side of the oven. It is finally withdrawn, leaving a level charge in the oven. Spilt coal passes down a hinged shoot 107 into the spillage hopper 55 feeding the aforementioned conveying system 56. The controls mounted in the operating cab 50 include a limit switch 123, Fig. 11, stopping the drive just as the tube enters the oven, a timer 126 allowing a dwell period in this position, a decelerator limit switch 124, a reversal switch 125 for withdrawing the tube, and a back movement limit switch 127. In a modification, Fig. 12, the carriage 39 is replaced by fixed staging and the forward portion 128 of the tube is a separate reciprocable member mounted telescopically on the rear portion 130. Coal supplied by a pipe conveyer 131 to a hopper 132 is fed via shoots 134 and a screw feed 138 to a pipe 139 engaging the charging wheel 137 which is generally similar to the wheel 45. Specification 602,474 is referred to.