GB343682A - Improvements in charging apparatus for blast furnaces - Google Patents

Abstract

343,682. Charging blast furnaces. BRASSERT & CO., H. A., 310, South Michigan Avenue, Chicago, U.S.A. Jan. 9, 1930, No. 833. Convention date, Feb. 16, 1929. [Class 51 (ii).] In blast-furnace charging apparatus comprising superposed hoppers 11, 4 closed by upper and lower bells 13, 7, the bell 7 is fitted with a number of plates 36 forming extensions of the conical surface 34 and so disposed as to provide radial spaces 38 within which are mounted distributing-plates 39, 42 projecting slightly above the surface 34 and the plates 36. The plates 39 are disposed vertically while the deflectors 42 are inwardly inclined towards the centre of the furnace 1. The operating- rod 19 of the bell 7 extends upwardly through the tube 14 carrying the upper bell 13 and has a flange 20, Fig. 4, at its upper end resting on rollers 21 in a housing 22 which is supported from the main operating-rod 24. To ensure uniform distribution of the charge within the furnace, the bell 7 is given a partial rotation during each upward stroke by the engagement of rollers 27, rotatably mounted on a boss 25 secured to the rod 19, with the downwardly inclined parts 33 of levers 30 pivoted on a pair of aligned shafts 29. The levers 30 are fitted with counterweights 31 which by contact with fixed beams 32 maintain the arms 33 rigid during the upward travel of the rod 19 which is thus given a partial rotation on its supporting rollers 21.