Patent ID: 7662347
Filing Date: 2010-02-16
Classification: B03B,Y02W

Abstract:
1. A device for the in-situ disposal of sanitary waste, in particular of incontinence articles, made of a nonwoven fabric, of an absorbent cellulose layer, with a gel embedded into the cellulose layer or with absorbent granulates, of a one-sided outer shell of synthetic material and of hook and loop fasteners/adhesive strips, rubber straps as closing and retaining means, whereby the sanitary waste is mechanically comminuted and at least partially dissolved in a wash liquid, the liquid thus obtained is separated from the remaining rest of the comminuted sanitary waste, the liquid is supplied to a discharge duct and the remaining rest of the comminuted sanitary waste is dewatered as well as separately disposed of, wherein the device ( 10 ) consists of a housing ( 11 ) in which a fixed drum-type container ( 20 ) is provided with a horizontal central axis (MA) and with a filling opening ( 25 ) for the sanitary waste as well as with an inlet pipe ( 28 ) for dosed wash liquid (WF), an inlet pipe ( 29 ) for a dosed sanitary liquid (HF) for preventing odors and for disinfection and an inlet pipe ( 129 ) for dosed chemicals (CH) in powdered or liquid state for conditioning superabsorbers whereby a discharge device ( 165 ) which is integrated into the container body ( 20 ) is provided in the bottom area of the container ( 20 ), for carrying-off of the comminuted sanitary waste interspersed with wash liquid out of the bottom area of the container ( 20 ), in an inner space ( 27 ) of the container, a vertical knife disk ( 30 ) which can be driven into rotation is placed in an area of one of the side walls ( 21 ; 22 ) of the container, the knife disk having tearing knives ( 31 ) turned to the inner space ( 27 ) of the container ( 20 ) for tearing and disintegrating the sanitary waste, and a compressor screw ( 60 ) following the discharge device ( 165 ) and placed in an approximately tubular housing ( 61 ) whereby the discharge device ( 165 ) is guided into the bottom-sided area of the compressor screw ( 60 ), the discharge device ( 165 ) is placed in the bottom area of the container ( 20 ) and is integrated in the container body and arranged in the longitudinal direction of the container ( 20 ), the discharge device ( 165 ) being configured as a discharge duct ( 65 ) with an incline in a discharge direction for the comminuted waste, which discharge duct is followed by the housing ( 61 ) containing the compressor screw ( 60 ) which forms a functional unit with a shear sieve sheet ( 70 ) placed in. the inner space ( 62 ) of the housing ( 61 ) of the compressor screw ( 60 ) and extending in the longitudinal direction of the compressor screw for separating the comminuted sanitary waste containing solid components from the wash liquid (WF) with the constituents of the sanitary waste dissolved therein in such a manner that the compressor screw ( 60 ) and the shear sieve sheet ( 70 ) cooperate in the manner of scissors, wherein the shear sieve sheet ( 70 ) consists of a curved plate-shaped sieve body ( 70 ′) with a partially circular arch, the radius of which corresponds to the outer radius of the compressor screw ( 60 ) in order to avoid a plugging of the shear sieve sheet ( 70 ), wherein a compressor nozzle ( 100 ) with an upwards tapered section ( 100 a ) for separating the residual liquid is configured in the upper area ( 61 b ) of the housing ( 61 ) with the compressor screw ( 60 ), the nozzle being connected to a further discharge duct ( 85 ) by a connecting line with a discharge pipe ( 80 ) for the liquid from the housing ( 61 ), whereby the wash liquid (WF) with the constituents of the sanitary waste which are dissolved therein is fed to the further discharge duct ( 85 ) over the discharge pipe ( 80 ) by means of a pump ( 81 ) and whereby the rest of the comminuted sanitary waste freed from liquid and containing solid constituents is fed with the compressor screw ( 60 ) to a collecting receiver ( 95 ) in the upper area ( 61 b ) of the housing ( 61 ), whereby the control of the admission for the wash liquid (WF) and the dosing pumps ( 28 ′, 29 ′, 129 ′) for the sanitary liquid and for the chemical, the control for the driving device ( 35 ) for the knife disk ( 30 ) and the driving device ( 66 ) for the compressor screw ( 60 ) and the pumps are combined in a program switching device.