52results about How to "High gasification temperature" patented technology

The invention relates to a high-accuracy zinc base alloy electrode wire. Components in a shell layer comprise, by weight, 70.5%-95% of Zn, 2.5%-27% of Cu, 0.02%-4.0% of X, 0.002%-0.4% of Y and inevitable impurities brought in by raw materials. X is any two kinds of metal from Ni, Ag, Cr, Si and Zr, the content ranges of the two kinds of metal are both 0.01%-2.0%, Y is any two kinds of elements of Ti, Al, Co, B and P, and the content range of the two elements are both 0.001%-0.2%. The epsilon phase content in the shell layer structure is over 80% by weight, the balance is a gamma phase or an eta phase, and epsilon phases are evenly distributed on the surface of core materials. Meanwhile, the invention relates to a preparing method of the electrode wire. Compared with the prior art, a metal workpiece subjected to cutting processing by the electrode wire is high in surface smoothness and good in surface quality, accordingly, cutting accuracy is high, meanwhile, the electrode wire preparing technology is simple, operability is high, the number of manufacturing steps is small, and large-scale and automatic production can be achieved easily.

The invention discloses a biomass and coal fluidized bed co-gasification method. The method comprises the following steps: biomass and coal are crushed and mixed to form biomass-coal mixture, the biomass-coal mixture is added to a fluidized bed gasification outer barrel and is gasified under the effect of a gasifying agent, and gas generated by gasification reaction is discharged through a cyclone separator; meanwhile, the biomass-coal mixture is added to a combustion inner barrel, coal coke which is not gasified in the gasification outer barrel and the entered compressed air are subjected to combustion reaction, and then ascend along the gasification inner barrel; and the coal coke enters an inertia separator to be gasified circularly along with a combustion gas flow, high-temperature flue gas and the biomass-coal mixture are subjected to countercurrent heat exchange and are discharged by a cyclone separator, and ash residue is discharged from the bottom. According to the biomass and coal fluidized bed co-gasification method, the gasification process and the combustion process of the biomass and coal are separated, the circulation of high-temperature material provides heat for the gasification reaction, heat is also directly exchanged through the thermal radiation and convection of a combustion chamber and a gasification chamber, the heat loss is reduced, meanwhile the production efficiency is improved, and the heat value of synthesis gas is high.

The invention relates to an efficient electrode wire for precision mould cutting. The efficient electrode wire comprises a core material and a shell layer wrapping the surface of the core material, the core material is made of yellow copper from the processes of smelting, casting, stretching and annealing, the shell layer is a discontinuous shell layer formed by heating, continuously drawing and continuously annealing a zinc metal plating layer plated on the yellow copper core material, and the discontinuous shell layer comprises shell particles which radially cover 40-90% of the surface of the core material and are distributed at intervals along an axial direction of the surface of the core material. The invention further relates to a preparation method of the electrode wire. The preparation method is simple in production technology, strong in operability, less in preparation steps, simple in production equipment and easy to prepare satisfactory products and realize large-scale and automated production. The efficient electrode wire is strong in universality and is particularly suitable for precision mould cutting.

The invention relates to a biomass double fluidized bed indirect gasification system and its control method. Double fluidized beds interact to realize combustion and indirect gasification so as to prepare a high-quality biomass syngas. The system provided by the invention comprises a fluidized-bed combustor and its secondary cyclone separator, a fluidized-bed gasifier and a second cyclone separator, a combustor air injection system, a combustor bed material feeding system, a gasifier vapor injection system, a gasifier biomass feeding system, a gasifier and combustor bed material circulatory system, a bed material recovery system, a combustor and a gasifier pressure control system. By the internal and external circulating double fluidized bed indirect gasifier, nitrogen in the air is naturally separated from the syngas. Through improvement of structure design of a reactor, mixed use of different bed materials, a bed material circular flow system and improvement of the gas-solid mixing level, gasification efficiency is raised, calorific value of the syngas is increased, tar content is reduced, and high-quality syngas is prepared.