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工艺过程是:废铅渣→坩锅炉加热/400℃→铅块。操作车间是开蔽式工棚约60m~2,有三座坩锅炉,无盖,无排气罩和通风排毒设备。熔铅时,铅烟弥漫,有风时铅尘飞扬,工人无防护用品和预防知识。经测定铅烟浓度0.51mg/m~3,超标15.9倍。病例1,男,21岁,从事熔铅工作4个月(1990年5—9月),因持续性腹绞痛,阵发性加剧4天,10月2日收治入院。入院前4天无明显诱因突然出现持续性腹绞痛,阵发性加剧,伴腹胀、恶心、呕吐一次为胃内容物。查体:神志清,精神萎靡,痛苦貌,无铅容,结膜无苍白,巩膜无黄染,齿龈无铅线,心肺无异
Process is: waste lead slag → crucible boiler heating / 400 ℃ → lead block. Operating workshop is a shed about 60m ~ 2 shed, there are three crucible boilers, no cover, no exhaust hood and ventilation detoxification equipment. When molten lead, lead smoke filled, lead-dust flying when windy, workers without protective equipment and prevention of knowledge. After the determination of lead concentration 0.51mg / m ~ 3, exceeding the standard 15.9 times. Case 1, male, 21 years old, engaged in melting lead work for 4 months (May-September 1990), due to persistent abdominal cramps, paroxysmal aggravating four days, admitted to hospital on October 2. 4 days before admission no obvious incentive for a sudden onset of persistent colic, paroxysmal aggravated, with bloating, nausea, vomiting once for the stomach contents. Physical examination: Consciousness, apathetic, painful appearance, lead-free capacity, no pale conjunctiva, sclera no yellow dye, gingival lead-free line, heart and lung no different