GB696682A - Improvements in or relating to gas producers - Google Patents

Abstract

696,682. Charging gas producers. FARNHAM, R. V. Aug. 14, 1951 [Aug. 14, 1950], No. 20140/50. Class 51(ii) Fuel is fed to a gas producer by means of a device comprising two plates relatively rotated at an appropriate speed and furnished with a plurality of distributed orifices and/or slots of such effective area and distribution as to effect without choking of the orifices and/or slots substantially uniform depth of fuel over the whole area of the producer shell. In the producer shown (Fig. 1) fuel from the hopper m is caused to pass downwards into the producer shell a through a feeding device which comprises fixed and rotatable plates b, c, furnished with openings taking the form of holes of fixed or varying diameter and/or slots having parallel, tapered or other non-parallel sides. The plate c is mounted on rollers f and is rotated at approximately 4 R.P.M. by pinion gearing. The upper ends of the water jacket walls g of the shell are enlarged at h and air is admitted at i to the steam space j and the air and steam are then led by a pipe k to the lower end of the producer into contact with the fuel bed. Means are provided to control the speed of the upper plate c in accordance with the quantity of air entering the producer. A shutter intermittently operated in accordance with the fuel feed is provided to close and open the fuel feed passage to the hopper m. In the embodiment shown the top plate c (Fig. 2) is provided with ribs n and two series of tapered openings o, p, whilst the lower plate b is simply provided with parallel sided slots. The plates may be provided with openings of generally spiral form the width of which becomes gradually less towards the periphery of the plate.