Patent GB-189916154-A (GB)
Title: Improvements in Coke Ovens.
Inventor: COPPEE EVENCE NARCISSE
Filed: 1899-08-08
Granted: 1900-06-02
Abstract: 16,154. CoppÚe, E. N. Aug. 8. Coking.-Relates to coke ovens of the CoppÚe type, and to methods of working them, either with or without recovery of bye-products. Fig. 1 shows the arrangement of the heating-flues between two adjacent ovens. When working without recovery of bye-products, the gaseous products of distillation pass from the upper parts of the ovens into chambers whence they are conducted along horizontal flues p<1> into four passages l, or two passages j. The gases, issuing from those passages l which are near the back of the oven flow down vertical flues n, o, q, r, past a damper d<1> into a chamber S', and thence through vertical flues d, e, f, g into a chamber V ; here the gases mingle with the gases from the passage j, and the mixed gases descend a series of vertical flues s, t, u into a chamber R, which communicates with the chimney flue C. In a similar manner, the gases issuing from the passages l at the front of the oven are conducted by flues n, o, q, r into a chamber f, whence they pass beneath the oven floor and ascend flues d, e, f, g, to mix with the gases issuing from the corresponding passage j. The two sets of flues, one for the front and the other for the back of the oven, are separated by a partition wall R. When working with recovery of bye-products, the gases are withdrawn from the ovens by pipes and conducted through the condensing-apparatus, whence the residual gases pass along pipes x, placed above the ovens and provided with branch pipes a, b, i, j', which are fitted with stop-cocks and communicate with the heating-flues. According to one method of working, gas and air are admitted at a, in the front of the oven flues, and descend the vertical flues n, o, q, r, to mix with gases introduced, beneath the oven floor, by the pipe i. Air is supplied by means of a flue m, and the gaseous mixture ascends the flues d, e, f, g, and mingles with the gases, issuing from the passage j and resulting from the mixing of gas, introduced by the pipe j<1>, and air, introduced through a passage a<1>. In the back part of the heating-flues, the gases are introduced at a, i, and j, and the course of the gases is along the flues n, o, q, r, past the damper d<1>, then up the flues d, e, f, g, and down the flues s, t, u into the chamber R and chimney flue C. According to an alternative method of working, the dampers c, serving to cut off direct communication between the upper ends of the vertical flues n, o, q, r, and the other vertical flues, are raised, and the damper d<1> closes the passage between the flues n, o, q, r, and the chamber S'. In the front of the oven, gas and air, introduced at b, ascend the flues n, o, q, r, and mix with gas and air respectively introduced by means of the pipe i and the flue m, and conducted by flues d, e, f, g into the chamber V. The resulting gaseous mixture meets gas and air introduced at j, and the whole descends the flues s, t, u, on its way to the flue C. In the back of the oven, gases and air are introduced at b, i, and flow in two separate currents along the flues n, o, q, r and d, e, f, g. These currents mingle, in the chamber V, with gas and air introduced at j, and the entire gaseous mixture descends the flues s, t, u on its way to the flue C.