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反应釜>>行业动态
反应釜、蒸馏釜在生产操作过程的风险
发布者:admin  日期:2016-05-26  点击:1525

  许多化学反应,如氧化、氯化、硝化、聚合等均为强放热反应,若反应失控或突遇停电、停水,造成反应热蓄积,反应釜内温度急剧升高、压力增大,超过其耐压能力,会导致容器破裂。物料从破裂处喷出,可能引起火灾爆炸事故;反应釜爆裂导致物料蒸气压的平衡状态被破坏,不稳定的过热液体会引起2次爆炸(蒸汽爆炸);喷出的物料再迅速扩散,反应釜周围空间被可燃液体的雾滴或蒸汽笼罩,遇点火源还会发生3次爆炸(混合气体爆炸)

Many chemical reactions,such as oxidation, chlorination, nitration and polymerization are strongexothermic reaction. If the reaction is out of control or Tuyu power outage,water supply, resulting in accumulation of heat of reaction, a sharp increase inthe temperature inside the reactor, the pressure increases, more than itsvoltage capacity, will lead to rupture of the container. Material from thespray rupture may cause fire and explosion accidents; reactor burst causematerial vapor pressure balance is broken, the instability of the superheatedliquid will cause 2 explosions, steam explosion); ejected material is thenspread rapidly, the space around the reactor(www.fanyingfuw.com) was shrouded in combustible liquiddroplets or steam, ignition source will encounter occurred 3 explosions (mixedgas explosion).

  导致反应失控的主要原因有:反应热未能及时移出,反应物料没有均匀分散和操作失误等。

The main reasons that leadto the runaway reaction are: the reaction heat is not removed in time, thereaction material is not evenly dispersed and operation errors, etc..

  2007316日,江苏省东台市某化工企业在利用原生产装置非法试制新产品乙氧基甲叉基丙二腈过程中,蒸馏塔突然爆炸,造成4人死亡、1人受伤。事故现场见图1~图3。导致这起事故的直接原因是,乙氧基甲叉基丙二腈粗产品过度蒸馏,导致高沸物堵塞填料层,反应釜内压力增大,发生物理爆炸,将填料塔下面的塔节炸飞,继而引起物料发生燃烧和化学爆炸。

In March 16, 2007, DongtaiCity, Jiangsu Province, a chemical company in the use of the originalproduction device for the illegal production of new products in the process ofthe new product B / O / C two cyanide process, distillation tower suddenlyexploded, killing 4 people were killed and 1 people were injured. The scene ofthe accident is shown in Figure 1 to figure 3. Lead to the direct cause of theaccident is, excessive ethoxy methylene propyl dinitrile crude productdistillation, resulting in high boiling jam packed bed, pressure inside the distillationkettle, physical explosion occurred, the filler below the tower tower sectionblown, followed by materials of combustion and explosion of the chemical.

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