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简述硫酸高位槽泄漏处置措施。

答案

参考答案:

发生硫酸泄漏时,当班人员首先穿戴好劳动防护用品,做好防护后展开应急处置。首先用工段备用的塑料桶接住泄漏硫酸并从地面取用一定数量砂土在三楼现场地面进行铺垫、围堰,防止硫酸从三楼流向下造成周围管道设备的腐蚀。在对设备漏点进行堵漏处理前必须将高位槽内的硫酸放净,主要步骤包括适当开大三楼溢流酸流量,提高塔内硫酸浓度以防止堵漏期间塔内酸浓度下降较快。用工段备用软管连接高位槽西侧排酸阀与回流管上的阀门短节,在确认软管与短节连接处密封良好后,开启排酸阀及回流管上的隔膜阀向一楼硫酸地槽排酸,此时注意通过地槽上部的酸回流视镜观察排酸流量大小,在确认三楼高位槽内硫酸排净后,对高位槽漏点进行处理,根据漏点情况选用焊补或堵漏卡子的方式进行堵漏。

处理要点:避免用大量自来水冲洗地面现场,尽量采用砂土覆盖的形式对硫酸进行处理;过理过程中穿戴个人防护用品;尽量采用打卡子形式完成设备堵漏。

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最近,洛阳小伙扶摔倒老人被讹一事引起了社会的广泛关注,人们都在议论还该不该去做好事,帮助他人。而“Positive Energy”一词早已对我们中国人产生了很大影响,因此,很多人并不会因此就不去做好事了。瞧!你身边就有很多助人为乐的同学,他们的事例值得我们学习。请根据下面表格信息给学校校刊写一篇短文,谈谈身边的好人好事,号召大家向他们学习。词数60—80(开头和结尾已给出,不计入总词数)
Who they are
        What they usually do to help others
 Liu Chang
       make our school beautiful (clean the classroom..) 
Li Bing
      help other students with their studies…
Zhang Ling
      help the people in trouble (cheer others up…)
     …
                  …
Dear Editor,
In our school,some students are always thinking more of others and ready to help them.I am moved deeply.Here is what they usually do.
Liu Chang is a very good student.                                                             
                                                                                            
                                                                                            
                                                                                            
                                                                                            
                                                                                            
                                                                                            
                                                                   
I hope everyone can learn from them and do something for others.
Yours, 
Mark 
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