摘要:
The invention relates to a method and the devices for emission-free total material utilisation of all the ingredients of community or industrial wastes of all types by gasification at high temperatures and processing of the resulting synthesis raw gas, whereby by fractional conversion of all the main ingredients such as hydrogen, carbon monoxide and carbon dioxide, and also the ingredients water, heavy metals, sulphur, chlorine and sodium may be supplied for re-use as a raw material.
摘要:
A procedure for the recovery and/or cleaning of carbon formed as a result of thermal processes. This carbon is present with supernatant C in equilibrium with CO.sub.2 and CO (Boudouard equilibrium) after being transformed into CO.sub.2 with oxygen in a synthesis gas at an elevated temperature. In so doing, the synthesis gas is brought to a temperature higher than 800.degree. and then, using H.sub.2 O, abruptly cooled to a temperature less than 100.degree. C., the carbon-water-dispersion is also used as an adsorption agent and the contaminants and residue are bound together in the waste gases, the carbon-water-dispersion is concentrated, the carbon sludge forming at the elevated temperature, preferably greater than 1200.degree. C., is dried. During the drying process the contaminants or contaminant components are vaporized from the carbon sludge and then condensed and the dried carbon is returned to the initial combustion process.
摘要:
A process for eliminating organic pollutant residues in the synthesis gas occurring during refuse gasification by the addition of oxygen, in which at least prepyrolyzed, carbon-containing refuse in compressed form is fed into a high temperature reactor, where a loosely heaped gasification bed is formed and is burnt below the same by oxygen addition. The resulting synthesis gas is drawn off from the top area of the high temperature reactor after an adequate residence time and into the residence zone. Additional oxygen is then jetted in temperature-regulated, partial quantities in such a way that the resulting possible partial combustion of the synthesis gas maintains its temperature above the gasification bed constant at approximately 1000.degree. C. Oxygen jetting takes place in such a way that a completely homogeneous gas mixing is ensured in the top area. For this purpose, several oxygen jets are arranged in the top area of the high temperature reactor and are axially and/or radially inclined thereto.
摘要:
Methods and suitable devices for the intermediate storage, transport and preparation as well as utilization of waste goods of all kinds are described, said waste goods being compacted down to a plurality of its original volume while maintaining their mixed and composite structure, are stored in intermediate storage and are transported in this form, if required, and are so compacted subjected to a pyrolysis. The totality of the pyrolysis products being under elevated pressure is subsequently subjected immediately to a high-temperature treatment. The compacted waste goods may be crammed into containers and are subjected to a low-temperature pressure pyrolysis. In case of ecological preparation of consumption goods such as motor vehicle wrecks or the like, a large-volume apportioning of the scrap goods is carried out by subdividing and/or crushing prior to the intermittent feeding into the pyrolysis chamber. The solid, liquid and/or gaseous process products containing polluants are led through one or a plurality of molten baths or are melted down in a respective high-temperature furnace. The pyrolysis chamber may consist of a heatable tube or a rectangular channel or of a continuous-heating furnace which accepts a plurality of suitable containers with compacted waste goods.
摘要:
A process for rendering usable disposal products is described, in which unsorted pollutant-containing industrial, domestic and/or special refuse undergoes a high temperature treatment. Accompanied by the entraining of existing liquid fractions and while maintaining its mixed and combined structure, the disposal product is compressed batchwise to compact packs. While maintaining the pressure action it is subsequently positively introduced into a channel heated to over 100.degree. C. and is kept in sliding, non-positive contact with the channel walls until the initially present liquids are evaporated and mechanical restoring forces of individual disposal product components are eliminated. The entrained organic constituents at least partly assume a binder function. The shape and structurally stable, lumpy solid conglomerate forced out of the channel in this state is introduced into a high temperature reactor maintained at at least 1000.degree. C. and forms therein a gas-permeable bed.
摘要:
Process for producing binder-containing fibrous mats from lignocellulose fibres or the like together with stabilizing additives is described. These mats are then generally processed by hot pressing to shaped or moulded articles, such as for the internal lining of the passenger compartments of motor vehicles. The dry fibrous material thoroughly mixed with the binder is applied to a conveyor in such a way that there is an alternate application of several wood fibre layers and synthetic fibre layers. The accumulation densities of the synthetic fibres and the wood fibres are placed to produce a mat cross-section in accordance with a statistical distribution, or curve, which roughly corresponds to an edge-blurred, periodic comb profile. The curve base width for the synthetic, fibres is much smaller than that for the wood fibres. The individual fibre accumulations are interconnected by means of suitable adhesives.
摘要:
An apparatus for moulding three-dimensionally shaped moulded articles from binder-containing web-like non-woven fabrics for transferring by pressure and heat action the shaping forces of at least one mould half acting on at least one electrically deformable supporting layer to the web-like non-woven fabrics, the supporting layer being fixed to a frame structure or held in movable manner with respect to the mould which makes it possible to match the deformation behavior of the stabilizing supporting layer in an optimum manner to the deformation behavior of the non-woven fabrics without there being any risk of over-elongation of the supporting layer thereby enabling the latter to be used repeatedly. For this purpose the supporting layer is fixed wholly or partly to the component by means of the additional resilient elastic stretching elements, said stretching elements, e.g. springs, rubber strips or plastic cords, having regulatable resilience characteristics, e.g. by pneumatic or hydraulic cylinders.
摘要:
The invention relates to a method of operating a high-temperature reactor for treating heterogeneous waste materials, in which the waste materials are introduced via an intake point into the reactor and form beneath the intake point a loose-piled gasification bed, in which the inorganic or organic components are subjected to fusion or gasification and homogenisation by oxygen and above the intake point the gaseous gasification products are subjected to high-temperature treatment with added oxygen in order to form and stabilise synthesis gas, water-cooled oxygen lances being used for high-temperature treatment.
摘要:
A method for processing hetrogeneous metal-containing deposits recovered from the cleaning of synthesis gas produced during the thermal treatment of wastes containing metals, including volatile metals, in equipment having a heating enclosure and a waste liquid container. The method comprises the steps of directing all of the liquids and residual solutions to the waste liquid container and directing all of the residual gases into the heating enclosure.
摘要:
A process for destroying toxic substances is described by irreversible substance decomposition of chemically relatively stable molecular structures occurring during the heat treatment of organic refuse constituents and whilst using a high temperature reactor. For this purpose, the reactor burner zone is supplied with a toxic substance--molecular structure mixture mixed with additional combustible gases raising the flame temperature and which is in liquid and/or gaseous form, in addition to oxygen in stoichiometric excess. The reaction gas thermally split off in the oxygen burner is then kept for at least 5 seconds in a stabilizing area of the reactor kept at a temperature of at least 1400.degree. C. and subsequently is suddenly cooled from this temperature to at least 100.degree. C.