Method and apparatus for the treatment of domestic waste
AssigneeT.G.E. Tech Ltd.
InventorsYakov Tsinman, Jean-Claude Ohayon
Life of this patent
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Abstract
Method of treatment of domestic waste. A reaction space is provided, into which the waste to be treated is fed at a controlled rate. The waste is concurrently compacted to form a stopper preventing leakage of gases from the reaction space. An oxygen-containing gas is fed to the reaction space, in order to affect the combustion of the waste and produce gases and solid material. The gas is filtered through the solid material, causing the gases to react with the solid material, whereby to produce fuel gases and ash.
Claims17
Method of continuous treatment of domestic waste, which comprises:
- a) providing a reaction space;
- b) feeding the waste to be treated to said reaction space at a controlled rate;
- c) concurrently compacting said waste to form a stopper preventing leakage of gases from said reaction space;
- d) feeding an oxygen-containing gas to said reaction space, whereby to affect the combustion of said waste and produce gases and solid material;
- e) controlling the temperature in the reaction space by activating means for controlling the temperature of said oxygen-containing gas;
- f) causing said oxygen-containing gas to pass through said solid material, thereby causing said oxygen-containing gas to react with said solid material, whereby to produce fuel gases and ash;
- wherein, the composition and quality of said fuel gases are controlled by determining the desired equilibrium constant of the reaction of said oxygen-containing gas with said solid material and maintaining said desired equilibrium constant by controlling the temperature in the reaction space and the ratio of the waste to the oxygen-containing gas, which ratio is controlled by controlling the rates of feeding said waste and said oxygen-containing gas to said reaction space;
- and
- wherein, the feeding of the waste is done by providing two conduits, each comprising a piston at its end and disposed at right angles to each other and operating said pistons in a synchronized manner in which one of said pistons to carries out the forward stroke when the other of said pistons carries out its rearward stroke and vice versa, thereby allowing continuous operation of said apparatus.
Apparatus for the continuous treatment of domestic waste, which is unsorted by size, said apparatus comprising:
- (a) a reaction chamber;
- (b) means for feeding an oxygen-containing gas to said reaction chamber;
- (c) means for controlling the temperature of said oxygen-containing gas;
- (d) means for controlling the composition of said oxygen-containing gas;
- (e) a gas receiving space for receiving the gases produced in the gasification zone of said reaction chamber, provided with an outlet for said gases;
- (f) means for discharging the ash formed at the bottom of said reaction chamber;
- (g) a first conduit comprising a first piston at its end furthest from said reaction chamber;
- (h) a second conduit disposed at right angles to said first conduit such that a junction is formed at the intersection of said first conduit with said second conduit, said second conduit comprises a second piston at its first end and has its second end located within said reaction chamber;
- (i) means for synchronizing the motion of said first and said second pistons;
- and
- (j) a hopper, into which the waste to be processed is loaded and from which said waste is discharged into said first conduit;
- wherein, said first and said second pistons fragment and/or cut off parts which can disturb the movement of the waste in the apparatus and said synchronizing means comprise means for causing one of said pistons to carry out the forward stroke when the other of said pistons carries out its rearward stroke and vice versa, thereby allowing continuous operation of said apparatus.
Dependencies are inferred from the claim text.