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Wilhelm Lessing
Alfred Wolff
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Publication of GB190224091ApublicationCriticalpatent/GB190224091A/en
24,091. Lessing, W., and Wolff, A. Nov. 4. Slags, treatment of.-Liquid blast-furnace cinder or slag is sprayed or granulated by a drum or fan wheel revolving on a horizontal axis n mounted in bearings outside the casing g. Slag enters by the channel a, and openings l for air circulation and an inspection window s are provided. Arms or blades c, parallel or inclined to the axis, with straight or undulated edges, act as a centrifugal or screw fan to circulate air for cooling purposes. Openings may be made through these blades and their edges may be sharpened, or a series of adjustable inclined or spiral cutters may be attached to them, one form with two sets of cutting-ribs m being shown in Fig. 7.
GB190224091D1902-11-041902-11-04Improvement in Apparatus for Spraying Glowing Blast-furnace Cinder
ExpiredGB190224091A
(en)
An improved method and apparatus for the purification of air in industry, pertainingto the incidence of dust and bacteria therein, in the prevention of occupational diseases