One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 499
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1. Multiple-choice question: What are the reasons why slag cannot be discharged from a calcium carbide method acetylene generator? A. The slag discharge valve is clogged. B. High temperatures occur, resulting in a high concentration of slurry and making slag discharge difficult. C. The slurry contains foreign objects, such as large pieces of ferrosilicon, which makes slag discharge difficult ； D. The small discharge volume at the cone bottom can also lead to difficulties in slag removal. Answer: ABCD
A. Clogging of the slag discharge valve; D. A low flow rate of water flowing at the base of the cone can also lead to difficulties in discharging slag.
B. The high temperature at which it occurs leads to a high slurry concentration, making slag discharge difficult