Specification of Frederick Neville : manufacture of coke.

  • Neville, Frederick.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Frederick Neville : manufacture of coke. Source: Wellcome Collection.

    5/14 page 3
    Nevilles Improvements in the Manufacture of Coke. the sal ammonia, bitumen gas, and other residuous products of coal generated in the retorts to the gasometer and other receptacles and reservoirs provided for the same. There are small spaces left between the retorts to allow of the free circulation of the flame and hot air or vapour from the coking coal around 5 them, and under the top arch of fire brick 0, 0. P is the door of the oven or furnace through which coal is supplied and the coke withdrawn. Q, Q, is the flue rising from about the middle of the furnace or oven leading to the chimney R. S, a small flue in the brickwork surrounding the oven, by means of which a sufficient portion of atmospheric air is supplied to support the com- 10 bastion of the coal in the oven G through the apertures T, T, T. The retorts are charged and emptied in the way usually pursued in gas works. According to the practice followed abroad, the retorts are charged and worked off* in about every four hours and a half, while the coal in the oven is not converted into coke sooner than in about forty hours, so that the operation of distilling 15 the coal, and obtaining therefrom its various volatile and liquid products, may be carried on with one interruption only in about forty hours, and that of a very short duration. The Sheet of Drawings marked No. II. shews another arrangement of gas retorts placed over a coke oven. Figure 1 is a plan. Figure 2 a front view 20 in the line A, B, in Figure 1. Figure 3 is a back view in the line Cl, D1, of Figure 1. Figure 4 a section through the line C, D, of Figure 1 ; and Figure 5 a section through the line E, F, of Figure 1. The several parts of these Figures are similar to those in the Figures in the Drawing No. 1, and are pointed out and distinguished by like letters of reference. The object of 25 this different arrangements of the retort is to obviate any danger which might exist of the retorts yielding in the middle from the intensity of the heat to which they are exposed, and from their being supported at the two ends only. Above the coke oven there are placed six narrow flat arches U, U, U, U, U, U, Figures 4 and 5, and on the crown of each of these arches rests the middle of 30 one of the retorts H, which are also supported at their ends by the walls of the furnace, as shewn in Drawing Number 1. The flat arches for support¬ ing the retorts are strengthened laterally by the counter pieces V, V, V, V, so that the whole six narrow arches form one large arch perforated throughout with apertures placed between the coking coal and the retorts, the flame and 35 heat from the coking coal passing through these apertures, and round and about the retorts, as described with respect to the arrangement shewn by the- Sheet of Drawings marked No. 1. The gas, ammonia, and other products of distillation are carried off by the pipes L, M, to the main N, also in the same
    No text description is available for this image
    No text description is available for this image
    No text description is available for this image