Abstract:
The present invention provides a system of manufacturing energy and ash products from solid waste. The system includes apparatus for receiving solid waste for processing (200), apparatus for shredding the received solid waste (300), apparatus for removing ferrous material from the shredded solid waste (400) to create processed refuse fuel (PRF) and apparatus for efficiently combusting the PRF (600). A conveyor transfers the PRF to the combusting apparatus (600) such that a density of the PRF is always controlled for continuous non-problematic flow. Apparatus for recovering residual combustion particulate (656) from the combustion residual gases and for recovering solid ash residue (700) provides the system with the ability to generate steam and electrical energy, and to recover for reuse and recycling valuable materials (700, 650) from the solid ash residue.
Abstract:
A method for treating waste involves (a) compressing the waste at a pressure of over 800 bars under conditions resulting in separation of the wet fermentable fraction and the solid combustible fraction; (b) exploiting each of these two fractions separately by means of, for the fermentable fraction, specific treatment to take advantage of its biomass nature and, for the combustible fraction, burning to produce energy. The method allows the waste to be exploited with high profitability. The invention also describes an improved press for compression in two successive phases: a precompression phase up to an intermediate pressure (200 to 300 bars) and final compression up to a final pressure of over 800 bars.
Abstract:
L'invention concerne un procédé de traitement d'ordures ou déchets consistant (a) à soumettre lesdits ordures ou déchets à une compression supérieure à 800 bars dans des conditions propres à en séparer la fraction fermentescible humide et la fraction combustible solide, (b) à valoriser ensuite chacune de ces deux fractions séparément, d'une part, pour la fraction fermentescible, par des traitements spécifiques tirant partie de sa nature de biomasse, d'autre part, pour la fraction combustible, par combustion en vue de la production d'énergie. Le procédé de l'invention permet de réaliser une valorisation des ordures ou déchets dans de remarquables conditions de rentabilité. L'invention s'étend à une presse perfectionnée réalisant l'opération de compression en deux phases successives: une phase de précompression jusqu'à une pression intermédiaire (200 à 300 bars) et une compression finale jusqu'à la pression finale supérieure à 800 bars.
Abstract:
Dans un procédé de traitement de déchets, on mélange les déchets solides et/ou liquides avec un matériau agglomérant, on fait passer le mélange à travers une extrudeuse afin de former des boulettes de déchets, auxquelles on fait traverser une zone de pyrolyse dans un four ou un séchoir afin d'en extraire au moins une partie des gaz volatiles contenus dans les déchets, puis on leur fait traverser une zone d'oxydation dans le four ou le séchoir où l'oxygène en excès provoque l'oxydation des gaz volatiles restants et d'au moins une partie du carbone fixe contenu dans les déchets, puis on leur fait traverser une zone de vitrification dans le four ou le séchoir destiné à vitrifier les silicates présents dans les boulettes, afin de former un agrégat solide.
Abstract:
The power generation system using waste as the raw material. This consists of various steps a. Combustible is fed into the boiler for combustion. b. Hi-pressure steam generated in the boiler is fed into the turbine which drives generator leading to power generation. c. Another end of the turbine is connected to a condenser which in turn connected to a cooling tower, and vaccum is maintained in the condenser. d. In another end of the condenser, the condensate is collected and recycled to the boiler through a hot well, and de-aerator and a feed pump. e. Part of the steam is extracted from the turbine at low pressure and fed into air heater to generate hot air for waste drying. This is the principle of co- generation and it increases the over all thermal efficiency of the power generation cycle leading to economic viability.
Abstract:
Processing of Waste The present invention includes awaste processing apparatus (10) comprising: a reactor vessel (11) in which waste is received and broken-down by pyrolysis to produce pyrolysis gases; and at least one plasma processing unit that treats the pyrolysis gases. The plasma processing unit comprisesa plasma generator (13) that creates hot ionised plasma gases; a plasma chamber (12) in which the plasma gases and the pyrolysis gases mix; andelectrodes (36, 37) within the plasma chamber that apply an electromagnetic field to the mixed plasma and pyrolysis gases to achieve decomposition of harmful waste components. The electrodes may include first and second electrodes across which a fixed or variable electrical potential is applied. There is also a method of processing waste comprising: A) thermally decomposing waste by pyrolysis to generate pyrolysis gases; B), heating the pyrolysis gases within a plasma chamber in the presence of hot ionised plasma, whilst applying an electric field to the pyrolysis gases, to decompose said gases; C) passing the decomposed gases through a catalytic process; and D) rapidly cooling the formed gases.
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.
Abstract:
The invention relates to a method of recovering energy from municipal solid waste. The inventive method comprises the following steps consisting in: cutting up the waste; depositing the waste in a drying pit; dehumidifying the waste by drying same with a hot gas; separating the recyclable and inert dry waste components and grinding same in order to obtain a combustible material; and gasifying said combustible material in order to obtain a conditioned synthesis gas which is used as a fuel in internal combustion engines. The invention also comprises a step involving the transfer of surplus thermal energy available in exhaust gases from internal combustion engines for the production of the hot gas that is used to dry the waste. The installation used to perform said method comprises a device for transferring surplus thermal energy from the exhaust gases from internal combustion engines.
Abstract:
The present request privilege mentions an installation for mineralization garbage and, more particularly, to the technique for the attainment of you leave nutrients, without that the process after has the necessity of some type of treatment so that the end item, which is a saline mixture, either incorporated to the ground under the rich fertilizer form in you leave minerals. The process if unfolds in two phases: the phase of recycling and the phase of mineralization properly said. It presents as another very important characteristic, the fact of that effluent, gaseous, liquid all its and solid ones, are innocuous and do not generate impacts in the health and the environment.
Abstract:
A slow speed, high torque shear technology is disclosed having optional configurations and attachments for its construction and methods for reconfiguring existing shears to improve performance, and maintenance economics (Figs. 1-45 and 49-69). A method is provided for the readily replacement of individual cutters and tooth modules, reconfiguration of cutter and tooth assemblies in a mix and match manner, in combination with matching anvils having replacement cutting elements with multiple cutting faces (Figs. 1-45 and 49-69). Alternative embodiments are provided illustrating methods of configuration of various types of cutting elements and material feed systems (Figs. 46-48B). Methods for converting a rough cut shear to a fine particle shear and then to a granulator as well as a method for rejecting unprocessable material is also disclosed.