Garbage Patents (Class 122/2)
  • Patent number: 4125593
    Abstract: Halogenated hydrocarbon materials are burned in an internally-fired horizontal fire-tube boiler and the heat of combustion directly produces saturated steam. Halogen values may be recovered from the combustion gases, e.g., by being absorbed in water. Thus halogenated hydrocarbon material which may need to be disposed of, is beneficially converted to energy and useful product.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: November 14, 1978
    Assignee: The Dow Chemical Company
    Inventors: John C. Scheifley, Clark R. Shields, David E. Busby
  • Patent number: 4050387
    Abstract: A liquid bath furnace, for burning pumpable wastes comprising hydrocarbon compounds and mineral substances, has primary and secondary combustion chambers, the walls of which are provided with La Mont boiler heating surfaces, and a post-combustion chamber. The heating surfaces are provided with heat-conducting cladding. In operation of the furnace, the wastes are fed to the primary combustion chamber, where the hydrocarbons dissociate and the mineral substances melt, a layer of the latter solidifying on the cladding in this chamber. An oil burner is used to regulate the primary combustion chamber temperature.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: September 27, 1977
    Assignees: Von Roll AG, Gelsenberg Mannesmann Umweltschutz GmbH
    Inventors: Peter Luchsinger, Heribert Muckenheim, Hanns-Helmut Riemann, Hans Sonnenschein, Erich Michel
  • Patent number: 4041906
    Abstract: An energy system which burns refuse inside a steam chamber to drive a steam turbine and an electrical generator. In addition to the electrical energy produced, hot water and steam are delivered as by-products.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: August 16, 1977
    Inventor: Raymond S. Edwards
  • Patent number: 4020797
    Abstract: Apparatus for using exhaust heat from burning refuse is described wherein a heat exchanger constructed as a self-supporting unit is mounted, inside an enclosure, directly on the combustion chamber. The heat exchanger consists of at least two co-axial, vertical, cylindrical, single-layer packs of helical tubes with their convolutions in close contact with one another and located so that they lie nearly perpendicular to the direction of flow of the smoke and gases of combustion. One or each of the packs consists of a plurality of tubes with the convolutions of the respective tubes arranged in repeated series along the length of the pack. The packs of helical tubes may be connected in series or in parallel for heating water. Alternatively, they may be divided individually into sections for any one of a number of alternative boiler configurations in which the sections can provide preheaters, evaporators and superheaters.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: May 3, 1977
    Assignee: Ofag Ofenbau-und Feuerungstechnik AG
    Inventor: Franz O. Hug
  • Patent number: 4019465
    Abstract: A boiler furnace that is adapted to burn slag producing pulverized coal in suspended form at the upper end of the furnace in which solid fuel is being burned on a subjacent grate. The boiler furnace has an upright combustion chamber with baffles intermediate the upper portion of the furnace and the grate to effectively arrest slag that falls from the upper portion of the furnace before it reaches the subjacent grate.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: April 26, 1977
    Assignee: The Air Preheater Company, Inc.
    Inventors: John William Regan, Douglas Michael Rode
  • Patent number: 3976018
    Abstract: A fuel dryer system for waste fuel boilers, such as for example those in the sugar cane processing industry where bagasse is used as a primary fuel, in which the dryer comprises an assembled, enclosed, vertical dryer structure of basically cylindrical shape through which hot drying gases flow with a conical materials collecting hopper and bottom discharge, having alternating conical-shaped rotating and fixed materials trays over which the materials (e.g.bagasse) to be dried move in a net direction from top to bottom (note FIG. 1). Adjustable wipers are provided with the conical materials trays, with access portholes at each tray level. In the sugar cane boiler system the stack gases from the boiler are used for the hot drying gases note (FIG. 5).
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: August 24, 1976
    Inventor: William Paul Boulet
  • Patent number: 3972180
    Abstract: Exhaust gases from a high pressure, high temperature fluidized bed reactor are fed through a turbo expander, in order to drive said turbo expander which is connected to a device such as a generator, adapted to accomplish useful work. Preferably, the exhaust gases pass through a particulate removal means prior to passing through the turbo expander.
    Type: Grant
    Filed: September 21, 1971
    Date of Patent: August 3, 1976
    Assignee: Chicago Bridge & Iron Company
    Inventor: Louis Ralph Van Gelder