Method and apparatus for processing waste matter
AssigneeEbara Corporation
InventorsMitsuhiko Nomi, Junichi Yamaji, Toyoshi Mizushima
Life of this patent
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Abstract
A method and an apparatus are disclosed for processing waste matter which is difficult to dispose of. The waste matter is incinerated by radiation of heat from material which exhibits microwave absorbing properties and is heated upon such absorption. The secondary gaseous waste matter produced by the incineration is burnt or pyrolysed by the presence of microwave absorbing material which is also heated by absorption of microwaves. The process according to the present invention can be practiced in an continuous operation and the volume of waste matter is remarkably reduced by the process and apparatus according to the present invention.
Claims24
A method of incinerating waste matter by employing an incinerator comprising the steps of:
- irradiating microwaves onto a bed consisting of granules which are kept under agitation, said granules being made of material exhibiting the characteristics of good absorption of microwaves so that the granules are heated by such absorption;
- and
- continuously charging said waste matter on said layer heated by the radiation of microwaves.
A method for processing gaseous waste matter which includes a combustible constituent and/or a harmful constituent, the method comprising the steps of:
- heating a furnace containing microwave absorbing material by irradiating microwaves thereinto;
- and
- passing said gaseous waste matter through said furnace thereby burning said combustible constituent and/or pyrolysing said harmful constituent.
A method of disposing of waste matter comprising the steps of:
- irradiating microwaves onto a bed arranged within an incinerator and consisting of granules which are kept under agitation, said granules being made of material exhibiting the characteristic of good absorption of microwaves so that the granules are heated by such absorption;
- irradiating microwaves onto a microwave absorbing wall of a furnace coupled to an exhaust opening of said incinerator so that the temperature of the furnace becomes high;
- charging said waste matter continuously into said incinerator so that it is incinerated in said furnace;
- and
- passing exhaust gas produced in said incinerator by the incineration through said furnace thereby burning combustible constituents of the exhaust gas and pyrolysing harmful constituents of the exhaust gas.
An apparatus for incinerating waste matter comprising:
- an incinerator body;
- a feeder for continuously charging said waste matter into said incinerator body;
- a bed of granules made of microwave absorbing material and disposed on a hearth of said incinerator;
- an agitator for agitating said bed which is driven by a driver arranged below the hearth;
- a plurality of nozzles arranged on said hearth and coupled to an air source for supplying air into said body;
- and
- a microwave guide for introducing microwaves into said body.
An apparatus for processing gaseous waste matter comprising:
- a furnace body having an inlet opening at the bottom and an exhaust opening at the upper portion thereof;
- a non-fusible microwave absorbing material disposed within said furnace body;
- and
- a microwave guide coupled with said body for introducing microwaves into said body.
An apparatus for processing waste matter comprising:
- an incinerator body having an exhaust opening;
- a feeder for continuously charging said waste matter into said incinerator body;
- a bed of granules made of microwave absorbing material and disposed on a hearth of said incinerator;
- an agitator for agitating said bed which is driven by a driver arranged below the hearth;
- a plurality of nozzles disposed on said hearth and coupled to an air source for supplying air into said body;
- a microwave guide for introducing microwaves into said body;
- a furnace body having an inlet opening at the bottom and an exhaust opening at the upper portion thereof, said inlet opening being coupled with said exhaust opening of said incinerator body;
- microwave absorbing material disposed within said furnace body;
- and
- a microwave guide coupled with said body for introducing microwaves into said furnace body.
Dependencies are inferred from the claim text.