Counter-current shaft, drawer-type dryer with moving drawers for drying agglomerates of a small mechanical strength

A counter-current shaft drier, with moving shelves for drying agglomerates of a small mechanical strength equipped with a top batcher-feeder of moist aggregates and a bottom receiver of dried aggregates divided into a number of drying sections with a gas inlet stub pipe and gas outlet stub pipe, characterized in that a vertical, preferably rectangular shaft (1) comprises a top, preferably a two-level charging zone (2), a multi-level, preferably from two-thru six-level drying zone (3) and a bottom, at least one, preferably a two-level discharging zone (4), where an outlet stub pipe or outlet collector (5) of drying gases is situated between the bottom discharging zone (4) and the drying zone (3) and the outlet stub pipe or the outlet collector of moist gases is situated between the drying zone (3) and the top charging zone (2) with shelves (8) of the charging zone (2) and shelves (10) of the discharging zone (4) are made of a number of rectangular not perforated metal sheet plates and the shelves (9) of the drying zone (3) are made of a number of rectangular perforated metal sheet plates, where each rectangular shelf plate (8), (9) and (10) is attached along its long edge to parallel pins (11) mounted swiveling in walls of the shaft (1), transverse against the axis of the shaft (1).