Abstract:
The preferred embodiment of the invention disclosed herein includes apparatus for and steps of separating glass, metal and other generally non-combustible material from refuse to provide a volume of generally combustible refuse, shredding this volume of combustible refuse into relatively small particles, mixing these particles with primary combustion air and conveying the resultant mixture of air and particles into a combustion chamber. The combustion chamber is preheated by auxiliary heating means to a temperature sufficient to cause the mixture to be self-igniting in the combustion chamber. Secondary combustion air is fed to the combustion chamber at spaced-apart points within the chamber for assuring a complete combustion process. This chamber is maintained under a negative pressure by a fan downstream and the combustion gases are thus caused to flow from the combustion chamber to an associated device utilizing the heat energy, for example, a steam boiler, and from the steam boiler, the gases are exhausted through a stack to the atmosphere. Oxygen measuring means is located on the discharge side of the boiler for measuring the amount of excess oxygen discharged to the atmosphere. In response to this measurement, the feed rate of the shredded particles of refuse is adjusted to maintain a substantially constant amount of excess oxygen in the combustion gases whereby the B.T.U. output is controlled.
Abstract:
Methods and apparatuses can be configured to facilitate sorting of paper from garbage and/or single stream recycling and subsequently process that separated paper to remove the contaminants from the paper so that the paper is in an acceptable condition for recycling. In some embodiments, the apparatus and method may utilize at least one dryer device that is configured to heat the paper without combusting the paper to remove water from the paper. The dryer device can also be configured to mix the paper as it is dried while also removing particulate contaminants off of the paper to clean the thrown away paper sufficiently so that the paper is in a condition that is acceptable for recycling into a paper product (e.g. a cardboard box, paper plate, sheets of paper, etc.).
Abstract:
In accordance with the present invention, there is provided an apparatus for fuelizing inflammable waste capable of efficiently fuelizing inflammable waste while reducing facility and operation costs of the overall system and maintaining stable operation, and so on. More particularly, the apparatus 1 for fuelizing inflammable waste comprises: a primary crusher 4 for crushing an inflammable waste W containing as principal component at least one selected from a group comprising plastics, sponges, fibers, rubbers and wood materials; a foreign matter removing device 7 for removing foreign matters F contained in the crushed objects W1; a secondary crusher 9 for secondarily crushing the crushed objects W3 from which foreign matters I, M are removed; and an injecting device 11 for injecting the secondarily crushed objects W4 generated by the secondary crusher 9 into a burner 10, and so on. The apparatus 1 may be provided with an intermediate tank 8 for storing the crushed objects W3 from which foreign matters I, M are removed, and from the intermediate tank 8 is supplied the crushed objects W3 to the secondary crusher 9.
Abstract:
Proposed are a system and method for wasteless pyrolytic processing and complete utilization of municipal and domestic wastes. The wastes are sequentially passed through units of sorting, grinding, drying, accumulating, and sending to a pyrolysis reactor for pyrolytic treatment. The syngas produced in the pyrolysis is passed through dry cleaning, dust catching, a first wet cleaning with water, a second wet cleaning with alkali, and a floatation unit for separation of water which is purified to an extent sufficient for technical use. The purified syngas is also passed through an absorber and is then used as a working medium for a power generation unit such as a gas turbine co-generator that generates electricity. Solid products of the pyrolysis reaction, such as coke, are returned to the reactor for afterburning, and the heat of the reaction can be utilized in a dryer, or the like.
Abstract:
The teachings of the present disclosure provide methods and apparatus for enhanced incineration. A method for improving the performance of an incinerator may comprise separating one or more substances from a process fluid using a classifying centrifuge, ejecting a first substance from the classifying centrifuge, the first substance having characteristics optimized for incineration, incinerating the first substance, and using heat generated from the incineration of the first substance to enhance the combustion efficiency of an additional substance separated from the process fluid.
Abstract:
In accordance with the present invention, there is provided an apparatus for fuelizing inflammable waste capable of efficiently fuelizing inflammable waste while reducing facility and operation costs of the overall system and maintaining stable operation, and so on. More particularly, the apparatus 1 for fuelizing inflammable waste comprises: a primary crusher 4 for crushing an inflammable waste W containing as principal component at least one selected from a group comprising plastics, sponges, fibers, rubbers and wood materials; a foreign matter removing device 7 for removing foreign matters F contained in the crushed objects W1; a secondary crusher 9 for secondarily crushing the crushed objects W3 from which foreign matters I, M are removed; and an injecting device 11 for injecting the secondarily crushed objects W4 generated by the secondary crusher 9 into a burner 10, and so on. The apparatus 1 may be provided with an intermediate tank 8 for storing the crushed objects W3 from which foreign matters I, M are removed, and from the intermediate tank 8 is supplied the crushed objects W3 to the secondary crusher 9.
Abstract:
Proposed are a system and method for wasteless pyrolytic processing and complete utilization of municipal and domestic wastes. The wastes are sequentially passed through units of sorting, grinding, drying, accumulating, and sending to a pyrolysis reactor for pyrolytic treatment. The syngas produced in the pyrolysis is passed through dry cleaning, dust catching, a first wet cleaning with water, a second wet cleaning with alkali, and a floatation unit for separation of water which is purified to an extent sufficient for technical use. The purified syngas is also passed through an absorber and is then used as a working medium for a power generation unit such as a gas turbine co-generator that generates electricity. Solid products of the pyrolysis reaction, such as coke, are returned to the reactor for afterburning, and the heat of the reaction can be utilized in a dryer, or the like.
Abstract:
The method aims at obtaining from waste and more particularly from municipal solid waste (MSW) the energy contained therein at the highest level for industrial use by means of natural technologies and with low environmental impact. The method, denoted by the acronym NEW (Natural Energy from Waste) operates through the following process phases: a) aerobic digestion of the putrescible biological part to produce stabilized waste which is easy to handle, b) separation of a fraction rich in materials with a high heat value, c) storage of the residue, rich in biodegradable and inert substances, compacted into appropriate geometrical shapes in bioreactors which can be activated and sealed, d) activation of the bioreactors with water and their service in time during anaerobic digestion to supply biogas to be used for the production of energy, e) bio-stabilization and dehydration of the residual material of the anaerobic treatment with air, f) possible recovery of the materials produced in this way. In this way the energy contained in the waste, is extracted at the most refined level in the form of plastic, plastic/paper and methane for energy uses with maximum yield and reduced production of ash, and the end material leaving the bioreactors is fully exhausted of its energy content and inertised.
Abstract:
A municipal or like refuse is crushing, mixing with crushed limestone, dry up in two stages—by hot air and by part of solid products of pyrolysis which other part goes on washing out and filtration. Pyrolysis is carried out in two stages—due to heat of the specified part of solid products of pyrolysis and simultaneous neutralization of allocated hydrogen chloride by limestone with reception of calcium chloride, and then due to heat of final chimney gases of the combustion chamber, where in three stages the washed solid products of pyrolysis preliminary drained by a part of combustion chamber slag are burnt together with liquid and gaseous products of pyrolysis. Gas allocated at pyrolysis condense and divide on organic, which is liquid fuel and water phases. Air after a dryer moves to blowing away of light organic substances from the specified water phase, is heated up due to heat of slag and moves in combustion chamber. Washing water goes on allocation of salts of heavy metals and calcium chloride, and slag after molding of a concrete mixture goes to the chamber of thermohumid processing of the slag concrete by a part of damp chimney gases after drying calcium chloride, other part of gases moves to manufacture of liquid carbon dioxide.
Abstract:
A pre-sorter forwards items from solid waste to designated processing paths in response to their size. Large items are manually processed to remove non-recyclables, to fuel a generator, to be returned to the pre-sorter after removal from a container, or forwarded to processing streams. The smallest items are forwarded to a first chain of machines that remove metal and glass from the items. Intermediate sized items are forwarded to an assembly that separates small, relatively dense, items from larger lightweight items. The former items are mixed and processed by a first chain of machines. The latter items are forwarded to a second chain of machines that separate and remove paper and other containers from recyclable metal and plastic. Multiple paper types are identified and removed by a third chain of machines. A remediator receives residual items from each of the first, second and third chains of machines.