Abstract:
This invention proposes an apparatus for pyrolysing or gasifying material containing an organic content. The apparatus comprises an oven (10) mounted for rotation on at least one support (12, 14). The oven (10) comprises a main processing chamber (16) for heating the material in a low or zero oxygen atmosphere to gasify or pyrolyse its organic content. A secondary processing chamber (18) for receiving processed material from the main processing chamber (16) is also provided. An eddy current separator (22) is positioned adjacent or in the secondary processing chamber (18) and is located such that as the oven rotates, material in the second processing chamber repeatedly passes it. The eddy current separator (22) is orientated such that, in use, it ejects non-ferrous metals from the secondary processing chamber (18).
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:
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:
Disclosed are a method and an installation for generating effective energy by gasifying waste. In said method and installation, waste such as garbage is introduced into a shaft-type melting gasifier, is dried in a reverse flow, is degassed, and is gasified while the solid residue is melted. The hot crude gases that are withdrawn from the melting gasifier (15) are fed to a hot gas steam generator (18) in which steam is admixed to the hot gas and said hot gas-steam mixture is conducted across the double turbine rotor (18.13) of a turbine (18.3) that drives a power generator (18.4), a preliminary reaction taking place at the same time. The pre-purified hot gas-steam mixture is then introduced into a downflow device (38) in which the mixture is cooled and pre-purified using sprayed water mixed with reactant and by repeatedly expanding, compressing, and foaming the mixture, the pre-purified gas being withdrawn and the liquid being collected. The pre-purified gas is fed to a gas purification process (40) in which the pre-purified gas is foamed with reactant and is defoamed again. The purified gases are finally further utilized for generating power, e.g. by being burned in an engine (41).
Abstract:
Solid combustible waste materials are converted into highly efficient fuel by subjecting such materials to size reduction in suitable size-reducing equipment (10, 12). The last piece of the equipment is a mill (14) which pulverizes the waste materials into fine particles having a high surface to mass ratio and forming a highly efficient fuel when these particles are directly injected into a combustion reactor (18) operating at high temperature.
Abstract:
A system for burning biomass to produce hot gas includes a wood processing system (28), a combustor (14), a cyclone ash separator (16), a turbine (18), and a control system (136). An air bypass assembly controls a flow of bypass air (128) to combine with the combustion gas prior to feed of the combustion gas to the turbine (18).
Abstract:
Disclosed is a method and system for recovering energy from low-grade fuels such as industrial, municipal and agricultural waste, low-grade carbonaceous fuels such as lignite and similar solid fuels in which the fuel is comminuted into small particles and slurried in water. The alkali content of the slurry is adjusted to be at least about equal to the chemical equivalent of the halogen content of the slurry and, following pressurization of the slurry, it is heated sufficiently so that the substantial portion of chemically bound oxygen in the fuel separates therefrom as carbon dioxide, leaving a slurry including char particles and dissolved impurities such as halogen salts. The char particles are removed from the slurry and reslurried with just enough halogen-free water to provide the slurry with the needed viscosity to maximize the energy density thereof. The char particles are then reacted with air at a temperature below their ignition value to convert the fuel value of the low-grade fuel into thermal energy which is then further used, for example, to drive a turbine (253, 255, 257).
Abstract in simplified Chinese:事先处理设备1与焚化熔融设备2所构成。焚化熔融设备2系焚化室3与熔融室5可连续移送地经由隔壁7一体形成。将以事先处理设备1细破碎之细破碎物作为燃料供应于熔融室5之熔融用粉体燃烧炉4。由此从废弃物得到废弃物,而且藉过热熔融从焚化室3直接未被冷却之状态的焚化残滓,以低成本有效率地可处理废弃物。
Abstract in simplified Chinese:本发明系关于垃圾焚化设备中的垃圾焚化方法及其设备。系先将可燃物予以粉碎、干燥后,从该粗粉碎可燃物中去除金属及不燃物。然后,再经第二次粉碎后,分离成:粗粒可燃物以及细粒可燃物(fluff) 。然后将分离出来的可燃物中的粗粒可燃物投入到垃圾焚化炉(1)的火格子(2)上,而在于一次燃烧室(4)被进行平面方式的燃烧。另外,细粒可燃物则是利用二次燃烧室(7)进行空间(三維)方式的燃烧而将可燃物予以焚化。借此,可有效地处理含有大量塑胶(塑胶几乎都被形成细粒可燃物)的垃圾,整体上系可增大焚烧量。