论文部分内容阅读
在工业生产中处理可燃粉尘时，存在固有粉尘爆炸危险。这已经由造成重大损失和常常造成人身伤亡的多次爆炸所证实。为了减少爆炸危险，了解粉尘沉积层或粉尘浮云的安全特性是很重要的。然后可以根据所采用的试验方法的试验结果，决定采用哪种有效保护措施。必须识别预防性防爆措施和设计防爆措施的特点。预防性措施是通过下列办法防止粉尘爆炸的：·防止可燃粉尘—空气混合物的形成；·使氧气惰化（inerting）或排除氧气；·消除有效引燃源；设计措施不能防止粉尘爆炸，但可以把爆炸结果限制在容许限度之内。设计措施有：·承受最大爆炸压力的耐压结构；·与爆炸卸压或爆炸抑制结合起来，承受减低的最大爆炸压力的耐压结构；·采取措施防止爆炸传入周围设备。本文对所有保护措施和必要的决策原则作了概述。
When dealing with combustible dust in industrial production, there is an inherent risk of dust explosion. This has been confirmed by multiple explosions that caused heavy losses and often caused personal injury. In order to reduce the risk of explosion, it is important to understand the safety features of dust deposits or dust clouds. Then according to the test method used in the test results, to decide what kind of effective protection measures. Preventive and preventive measures must be identified. Precautionary measures prevent dust explosions by: • Preventing the formation of combustible dust-air mixtures; • Inflating or excluding oxygen; • Eliminating the source of an effective ignition; and Design measures do not prevent dust explosions but can Limit the result of explosion to the allowable limit. The design measures are: · Withstand pressure structure to withstand the maximum explosion pressure · Withstand structure to withstand the reduced maximum explosion pressure in combination with explosion relief or explosion suppression · Take measures to prevent the introduction of explosions into the surrounding equipment. This article provides an overview of all the safeguards and the necessary decision-making principles.