摘要:
This invention provides a system and method for efficiently and completely combusting oil in mixture with particulate solids. A furnace (kiln) having a feed nozzle with a lead screw drives the mixture from a feed hopper. This nozzle includes forced-air jets/ports at its tip providing makeup air and allowing atomization of the mixture. The nozzle thereby directs the mixture into a rotating combustion chamber that is tilted downwardly from the front toward a solid waste outlet port at the rear. Uncombusted fuel and air backflow to an upper, secondary chamber near the primary chamber front, and are completely combusted at a high temperature. Gasses exit a flue that can include a heat exchanger. This heat exchanger can be operatively connected to a heating device or other mechanism that converts the heat into usable energy. The nozzle can include a cone with axially tilted air ports about its perimeter.
摘要:
The present invention relates to a furnace (10), its method of operation and control. The invention overcomes problems associated with existing furnaces by improving the recovery rate of waste metal. In a preferred embodiment the furnace (10) comprises a cylindrical body of constant internal diameter. The furnace body (12) is mounted on a frame (15) pivoted to a ground members (16a and 16b), the furnace body (12) is adapted to be reclined or inclined or at various angles (α and ⊖); a burner (30) to heat the furnace, and a door (19a, 19b) for sealing an open end (14). As the internal walls of the furnace body (12) are of a constant diameter, it is no longer necessary to incline the furnace (10) to such a degree in order to pour molten metal, because there is no narrow neck (which previously acted like a weir). In a preferred embodiment combustion air is routed through the door hinge to the burner (30). As a result the air/fuel delivery system has gas tight rotary and elbow joints is attached to the furnace (10) and tilts and moves with the furnace (10). An artificial intelligence system monitors process variables and controls the operation of the furnace (10).
摘要:
A furnace body (4) consists of drums (D1, D2, and D3) which are supported and drove by rotation drive assemblies (3) independently of each other. Each drum has open ends at both sides, and adjacent open ends are engaged to each other in a rotatable manner. One open end of the furnace body (4) are provided with a waste feeding assembly (6), and the other is provided with a gas exhausting assembly (7). Oxygen supply units (5) are connected to the joint between the open ends of adjacent drums.
摘要:
The present invention relates to a furnace (10), its method of operation and control. The invention overcomes problems associated with existing furnaces by improving the recovery rate of waste metal.In a preferred embodiment the furnace (10) comprises a cylindrical body of constant internal diameter. The furnace body (12) is mounted on a frame (15) pivoted to a ground members (16a and 16b), the furnace body (12) is adapted to be reclined or inclined or at various angles (α and β); a burner (30) to heat the furnace, and a door (19a, 19b) for sealing an open end (14).As the internal walls of the furnace body (12) are of a constant diameter, it is no longer necessary to incline the furnace (10) to such a degree in order to pour molten metal, because there is no narrow neck (which previously acted like a weir).In a preferred embodiment combustion air is routed through the door hinge to the burner (30). As a result the air/fuel delivery system has gas tight rotary and elbow joints is attached to the furnace (10) and tilts and moves with the furnace (10).An artificial intelligence system monitors process variables and controls the operation of the furnace (10).
摘要:
A system and associated method of processing solid waste via a waste gasification process resulting in usable by-products may be used to generate electricity. The method utilizes a rotary kiln heated to a temperature of at least 800° F., a reduction chamber, heated to a temperature of at least 1800° F. and a boiler downstream of the reduction chamber. Steam generated in the boiler powers a turbine which operates a generator for generating electricity. Dampers may be positioned to bypass the power generation system. Gases are monitored and transported from the reduction chamber to at least one air pollution control unit to remove contaminants before being vented into the atmosphere.
摘要:
The invention is a method and apparatus for burning combustibles, particularly garbage and coal, in such a manner as to prevent the venting of unwanted pollutants into the atmosphere and for recovering valuable resources. The combustibles are burned in a rotating inclined furnace; solids and molten metals are extracted at the discharge end of the furnace; the discharged gases are passed through a boiler for extracting heat therefrom and generating steam; the discharged gases are liquified by sequential cooling and the so-liquified products removed while preventing discharge of gases into the atmosphere; the remaining gases are passed through a second boiler for further extraction of heat and steam generation and further extraction of liquified products; and the effluent gases are passed into subsequent apparatus for removing any remaining pollutants and for the recovering of resources in accordance with Nielson U.S. Pat. No. 4,728,341.
摘要:
The present invention relates to a rotary kiln made of a metal alloy. The alloy is preferably chosen from the group of Alloy 321, Alloy 321H, Alloy 347, Alloy 347H, Alloy 348 and Alloy 348H. An object of the present invention is to provide a rotary kiln that can be operated under the reducing gas conditions to be experienced by the kiln in a pyrolysis process of scrap rubber. The present invention furthermore relates to the use of such a rotary kiln in a process for the pyrolysis of tyres.
摘要:
This invention provides an apparatus for pyrolysing or gasifying material containing an organic content. The apparatus comprising an oven (10) mounted for rotation on at least one support (16). The oven (10) has an inlet (20) for receiving hot gas having a low or zero oxygen content to heat the material therein so as to process it to produce syngas, and an outlet (24) for said syngas. An electromagnet (28) is disposed in or adjacent the oven (10) so as to create a magnetic field therein and a plurality of ferrous elements (30) are freely disposed within the oven (10). A controller (32) is provided for controlling the electromagnet (28) and the rotation of the oven (10). When activated the electromagnet retains said ferrous elements as the oven rotates.
摘要:
A combustion device for the pyrolytic destruction and gasification of industrial or other wastes, or lower sulfur fuels, is provided which includes an elongated cylindrical kiln body. Air is introduced into the kiln body by a plurality of pipes which define different combustion zones therewithin. A sorbent such as pulverized limestone may be introduced into each zone for reaction with the feedstock material to reduce undesirable flue emissions. The pipes are oriented within the kiln body to sweep the feedstock along the kiln body in a generally cyclonic pattern of torroidal shape and cross-sectional contour. The kiln may be rotated at various speeds corresponding to the force of the introduced combustion air to fluidize and entrain the feedstock material to be combusted.
摘要:
The present invention relates to a furnace (10), its method of operation and control. The invention overcomes problems associated with existing furnaces by improving the recovery rate of waste metal. In a preferred embodiment the furnace (10) comprises a cylindrical body of constant internal diameter. The furnace body (12) is mounted on a frame (15) pivoted to a ground members (16a and 16b), the furnace body (12) is adapted to be reclined or inclined or at various angles (α and ⊖); a burner (30) to heat the furnace, and a door (19a, 19b) for sealing an open end (14). As the internal walls of the furnace body (12) are of a constant diameter, it is no longer necessary to incline the furnace (10) to such a degree in order to pour molten metal, because there is no narrow neck (which previously acted like a weir). In a preferred embodiment combustion air is routed through the door hinge to the burner (30). As a result the air/fuel delivery system has gas tight rotary and elbow joints is attached to the furnace (10) and tilts and moves with the furnace (10). An artificial intelligence system monitors process variables and controls the operation of the furnace (10).