安全工程外文翻译

安全工程外文翻译内容摘要：

st explosive prevalence. The original stateowned key coal % mine coal dust explosion, small coal % coal mine coal dust explosion hazard which has high amounts to %, with strong explosive. geological conditions, water restricts safe production Our country is large and mediumsized coal mine, hydro geological belongs to plex or plicated coal mines accounted for %. From 2020 to2020, the national coal mine flooding accident occurred a total of more than 160, the death of nearly 700 people, accounts for the major accidents the proportion of deaths after the gas accidents. thermal damage has bee a new disaster in coal mine With the increase of mining depth, the temperature of surrounding rock mine thermal damage increased more and more problems. According to this year39。 s statistics,70 large and medium scale production of underground coal mining surface maximum temperature over the coal mine safety regulations requirements, including 26more than 30 degrees Celsius, reached a maximum of 37 degrees c.. coal mine number difference and coexist Our country coal quantity, than the rest of the world’s total state of main coal mining mine, at present the whole nation shares in the construction and reconstruction of mine 3955,300000 tons of the following small coal mines accounted for % of the30000tons of the following562. The southwest of the existing construction and reconstruction and extension of coal mine average singlewell capacity is 70000tons. China39。 s coal production capacity in the average dispersion, mine resource recovery rate is about 45%, which is only about 15% of small coal mine. Current medium and small coal mine safety production technology and equipment level is low, the ability that fight calamity is poor, bring difficulties to safety management. low mechanization degree insufficient safety technology and equipment According to statistics, the original stateowned key coal mining mechanization degree %, fully mechanized mining of degree %, integrated mechanization level %. While the original local stateowned coal mine and coal mine of villages and towns mechanization level is generally low, the national average level of coal mining mechanization is less than 40%. Most of the existing coal mine monitoring system equipment failure is not yet implemented work management, part of the equipment function behind. 44spontaneous bustion danger to mine fire prevention and extinguishing system has not yet been established. 66mine has not yet been established dustproof water supply pipeline. Many of the mines did Ann fortification explosionproof facilities, even equipped with anti explosionproof facilities mine。 set the number less to safety regulations. A considerable part of the stateowned key coal mine methane power device, optical methane detector, methane sensing portable methane detector and other necessary safety instrument equipped with deficiency of. There are164 mines in50% in electrical equipment extended service. A large number of small coal mine safety equipment level is lower, some does not have the defense capability, and the majority of small coal min。