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US 6,152,306 AGranted
Solid waste reduction
AssigneeMolecular Waste Technologies
InventorAlan E. Miller
Life of this patent
Estimating the term…
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AssigneeMolecular Waste Technologies
InventorAlan E. Miller
Estimating the term…
Dumped solid waste is mixed with sand and fed through a shredder. Sorters sort aluminum glass and ferrous materials from the shredded waste, and an indirect fired dryer heats the remaining shredded waste. Dust in gases from the dryer is removed in a bag house. Sand is added to the dried, shredded waste, and the waste is cooled and stored in surge storage. The shredded, dried, cooled and stored waste is fed to one or more reducing chamber units. Waste is moved through individual chambers within the units with augers and is gravitationally fed between the chambers. Gases from the chambers are condensed, and the condensate is stored as oils. Solid products from the reducing chamber units are cooled. The sand is separated from the solid product. The resultant solid product and oils may be sold as fuel and feedstock, or the resultant product may be pulverized and combined with the oil in a slurry which is used as a fuel or a feedstock.
Waste processing apparatus comprising a waste feeder for receiving waste, an inert reducing chamber connected to the waste feeder, a microwave unit proximal the reducing chamber for supplying microwaves and reducing waste in the reducing chamber, gas collectors connected to the inert reducing chamber for receiving gases, coolers connected to the gas collectors for cooling the gases, and receivers for receiving reduced waste, further comprising an inert gas source connected to the reducing chamber for supplying inert gas.
Waste processing apparatus comprising a waste dump, a waste feeder connected to the waste dump, a shredder connected to the waste feeder, sorters connected to the waste feeder, an indirect fired dryer connected to the shredder, a first cooler connected to the dryer, a surge storage connected to the first cooler, an inert reducing chamber unit connected to the surge storage, at least one microwave unit for reducing waste in the reducing chamber unit by microwaves, gas collectors connected to the reducing chamber unit and condensers connected to the gas collector for condensing the gases, a second cooler connected to the microwave unit and a separator connected to the second cooler, further comprising an inert gas source connected to the reducing chamber unit.
A method of treating waste comprising dumping waste, feeding the dumped waste, shredding the waste, sorting the waste, drying the shredded waste, removing gas from the drying waste, conveying the dried waste to inert reducing chamber units, supplying inert gas to the reducing chamber units, supplying microwaves to the reducing chamber units by microwave units, moving the waste through the reducing chamber units while exposing the waste to microwaves, collecting gas from the reducing chamber units, condensing the collected gas and cooling and collecting the solid material from the reducing chamber units.
Waste processing apparatus comprising a waste dump, a waste feeder connected to the waste dump, a shredder connected to the waste feeder, an indirect fired dryer connected to the shredder, a first cooler connected to the dryer, a surge storage connected to the first cooler, an inert reducing chamber unit connected to the surge storage, an inert gas supply connected to the reducing chamber unit, the reducing chamber unit having plural successively smaller stages, at least one microwave unit for supplying microwaves to the reducing chamber, gas collectors connected to the reducing chamber unit and condensers connected to the gas collector for condensing the gases, a second cooler connected to the reducing unit and a separator connected to the second cooler.
Dependencies are inferred from the claim text.