Газификация низкосортных топлив в пульсирующем слое

The paper provides description of a gas generator with a pulsating layer. Some hydrodynamic and heat-transfer peculiar features of the processes occurring in the gas generator with the pulsating layer have been presented in the paper.Приведено описание газогенератора с пульсирующим слоем, а также некоторые гидродинамические и теплообменные особенности процессов, протекающих в газогенераторе с пульсирующим слоем

Особенности протекания газодинамических процессов в пульсирующем слое

The paper considers an impulse structure of gas flow in low-frequency pulsating layer. An influence of pulsation frequency on layer resistance is taken into account in the paper.Рассмотрена структура импульсов газового потока в низкочастотном пульсирующем слое. Учтено влияние частоты пульсаций на сопротивление слоя

PROCESS AND PRACTICE OF APPLICATION OF HOT IRON OF FIRST SMELTING, OF MIXTURES WITH METALLOPHOSPHATOCEMENTS IN MACHINE-BUILDING FOUNDRY

There the theoretical foundations, the production process of cast machine-building articles with the application of hot conversion pig iron in the metal charge, with the application of rapid-solidifying metallophosphatocement low-toxic mixtures with the reversible solidification character in the lining-formation processes have been developed. The routes of application of hot pig iron in the metal charge, which decrease the melting loss and the dust-making, have been offered. The interconnection between the hereditary properties of iron and the optimization of casting process has been ascertained. The known metallophosphatocement mixtures have been improved, the new ones have been developed and have been introduced. The opportunity to use the exhausted mixtures as well as to regenerate them with the magnetic fields and with the pneumoclassifiers has been determined. The request, the specifications for the building of shop working by the hot conversion pig iron have been formed. The firebrick in the linings has been changedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

RESOURCE-SAVING LINING COMPOUNDS AND MOULDING SANDS IN METALLURGICAL FOUNDING

There the study objects are the hot pig iron, the lining compounds, the moulding sands, the metal-phosphate binding conpositions. The purposes are to improve the properties of known compositions, to develop the new compositions, to control the properties of metal-phosphate lining compounds, of sands, of production process of castings with the application of hot iron of blast-furnace smelting. The mechanisms of solidification and of failure kinetics of cold-solidifying metal-ceramic lining compounds at the use of hot pig iron in the machine-building have been ascertained; the arising mechanism of cracks and of brittleness in the monolith layer of lining has been offered. The mathematical formulae, which describe the processing method of hot iron of blast-furnace smelting, have been obtained. The new compositions of metal-ceramic metallurgical linings have been developed; their classification has been refined; the compositions of magnetite moulding sands and of maggemitomagnesite moulding sands have been improved. The computer program for the development, for the optimization of compositions, of properties and of industrial application process of lining compounds and of moulding sands has been obtained. The mathematical simulators of processing method of hot blast-furnace iron, the resource-saving production process of castings, which is safe according to the ecology, have been introduced. The consumption of in-wall brick, of energy has been decreased by 30 - 37%; the service life of linings has been risen 1,5 - 2 times; the casting scrap has been reduced, their properties have been increased by 30%Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Peculiar Features of Gas-Dynamic Processes in Pulsating Layer

The paper considers an impulse structure of gas flow in low-frequency pulsating layer. An influence of pulsation frequency on layer resistance is taken into account in the paper

Gasification of Low-Quality Fuel in Pulsating Layer

The paper provides description of a gas generator with a pulsating layer. Some hydrodynamic and heat-transfer peculiar features of the processes occurring in the gas generator with the pulsating layer have been presented in the paper