GB191029824A - Improvements in Sectional Grain Heaters and Driers. - Google Patents

Abstract

29,824. Koegler, A. J. Dec. 22. Conditioning grain; processes of treating grain; roasting granular substances .- In a grain heater formed of a vertical series of separable sections, each consisting of a steam chamber through passages in which the grain falls, these passages are provided with helical deflectors formed with central apertures and inclined plates, so that the grain in falling is forced towards the heated sides of the passages. In the apparatus shown in Fig. 1, grain tubes 2 are secured in heads 3 within an insulated casing, and grain is supplied to the topmost series of tubes through a screen 5. A shaft 7 is secured to the heads of each section and admits air between the sections, preventing the formation of a vacuum in the grain tubes. Between the sections, screens 23 are provided, and within the tubes 2 a helix 25 carries at intervals inclined plates 27 projecting through holes 26. The steam spaces of the sections are connected in series. The grain from the lowest tubes passes through a funnel 10, and its escape from the drier is controlled by a pair of adjustable registering disks 12, 13. The apparatus is suspended by arms 28, and the sections are kept in line by collars 29. When maize and other coarse grain is to be treated, apparatus such as is shown in section in Fig. 5, is employed, having a second series of tubes 32, preferably formed as shown, between the steam chamber and outer wall, both sets of tubes having deflecting-members.