工长炉前操作技师题库（In front of the furnace operation Technician Exam foreman）.docVIP

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工长炉前操作技师题库（In front of the furnace operation Technician Exam foreman）.doc

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工长炉前操作技师题库（In front of the furnace operation Technician Exam foreman）

工长炉前操作技师题库（In front of the furnace operation Technician Exam foreman） What are the 17. basic requirements on sinter quality? Answer: good strength, uniform size, less powder, good reducibility and high grade, suitable alkalinity and harmful ingredients less, stable chemical composition. 18. what is the charging system? Answer: charging system refers to the charge into the furnace, the furnace loading order, batch size, weight and height of the cloth material line angle reasonable provisions. 19. blast furnace use what machine? Answer: (1) tapping machine. Open special machinery iron mouth; (2) mud gun. Is tapping after blocking special machinery iron mouth. There are several methods to determine the 20. remaining iron mouth position? Answer: the determination method of residual iron export position basically experience judgment method and the calculation method of two kinds of hearth erosion depth. There are several methods for the 21. observation and judgment of furnace condition? Answer: the method of observation and judgment of furnace has a direct and indirect judgment judgment and comprehensive judgment of three methods. What are the main operation accident 22. skimmer? Answer: (1) skimmer shooting or boat; (2) skimmer burning leakage; (3) skimmer island has been obliterated; (4) the sand gate is not strong or push the gate causing premature iron slag. How to construct 23.. Taphole? Answer: there are mainly mud brick and refractory mud iron frame, protective plate, iron mouth within the framework of the composition. 24. blast furnace ironmaking process of sulfur in the whereabouts of a few? Answer: the blast furnace process of sulfur to three: a part of volatile with gas exhausted out of the furnace; the other part into the pig; the rest into the slag, accounting for more than 87%. 25. why bin? Answer: the raw material used in blast furnace ore, coke and other flux charge, in order to ensure the blast furnace charging according to certain ingredients, must have