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防止煤尘爆炸的安全措施!

2019-09-04 来源:http://www.zhongyanjixie.com 发布人:admin 浏览量:
  煤泥干燥系统在运行过程中会产生煤尘和可燃气体。操作不当可能引起煤尘爆炸事故。介绍了煤泥干燥系统中煤尘爆炸的安全措施。具体有三个方面:
  Coal dust and combustible gas will be produced during the operation of the slime drying system. Improper operation may cause coal dust explosion accidents. The safety measures of coal dust explosion in slime drying system are introduced. There are three specific aspects:
  控制煤泥干燥系统的含氧量
  Control of oxygen content in slime drying system
  结果表明,煤泥干燥系统的氧含量与温度有直接关系。当干燥器入口温度大于500℃时,煤泥干燥系统中干燥介质含氧量低于煤尘爆炸浓度下限。在烘干机实际生产过程中,由于进料量小,入口温度为523.5℃,干燥系统含氧量小于16%,从而保证了系统的安全运行。
  The results show that the oxygen content in the slime drying system is directly related to the temperature. When the inlet temperature of the dryer is higher than 500 C, the oxygen content of the drying medium in the slime drying system is lower than the lower limit of the explosion concentration of coal dust. In the actual production process of the dryer, due to the small amount of feed, the inlet temperature is 523.5 C, and the oxygen content of the drying system is less than 16%, thus ensuring the safe operation of the system.
  控制煤泥干燥系统粉尘浓度
  Control of dust concentration in slime drying system
  粉尘浓度控制方法是控制系统内的气流速度,使煤泥干燥系统内的粉尘飞扬量降到低。在烘干机中,设计风速为5m/s,在此风速下,粉尘不会飞扬。同时,煤在烘干机前,由于水分高,所以基本上没有烟尘。只有在煤泥烘干机的后端,随着煤水分的不断减少,将会有灰尘生产,在这个阶段,干燥器的内部结构设置格栅类型圆弧提升机板,甚至没有设置提升机板,这样干材料不能筹集尽可能多的,为了避免灰尘飞。此外,控制干燥后的产品含水量,防止产品过度干燥,还可以减少粉尘的产生。
  The control method of dust concentration is to control the airflow speed in the control system, so as to minimize the dust lifting in the slime drying system. In the dryer, the design wind speed is 5 m/s, under this wind speed, dust will not fly. At the same time, coal in front of the dryer, because of high moisture, so there is basically no smoke and dust. Only in the back end of the slime dryer, with the continuous decrease of coal moisture, there will be dust production. At this stage, the inner structure of the dryer is equipped with grid type arc hoist plate, or even without hoist plate, so that the dry material can not raise as much as possible to avoid dust flying. In addition, controlling the moisture content of dried products to prevent excessive drying of products can also reduce the generation of dust.
木屑烘干机厂家
  消除所有火源
  Eliminate all sources of fire
  在燃烧炉内设置防火墙,防止火花进入煤泥烘干机。控制污泥干燥后的温度,避免达到自燃温度;定期清理沉积物,杜绝煤尘积聚。
  Firewall is installed in the combustion furnace to prevent sparks from entering the slime dryer. Control the temperature of sludge after drying to avoid self-ignition temperature; regularly clean up sediments to prevent coal dust accumulation.
  做以上三个方面的预防措施可以有效地避免煤尘爆炸的可能性煤泥干燥系统,与此同时,煤泥烘干机用户还需要定期进行安全知识培训和安全意识教育运营商,只是为了防止火灾,防止微消除,可以使设备安全稳定运行。
  The above three preventive measures can effectively avoid the possibility of coal dust explosion in the slime drying system. At the same time, the users of the slime dryer also need regular safety knowledge training and safety awareness education operators, just to prevent fires, prevent micro-elimination, and make the equipment safe and stable operation.
  作为一个早期从事煤泥烘干机系统研究和开发企业,干燥机制造商总是把产品的安全性和可靠性首先,煤泥烘干机系统使用先进的温度、浓度、风速动态监测系统和自动保护装置,可以完全避免煤尘积聚造成的安全事故。
  As an early enterprise engaged in the research and development of slurry dryer system, the manufacturers always put the safety and reliability of products first. The slurry dryer system uses advanced temperature, concentration, wind speed dynamic monitoring system and automatic protection device, which can completely avoid the safety accidents caused by coal dust accumulation.
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