Các tài liệu về đề tài này là đáng kể. Nhiều tác giả đã công bố ngắn gọn, cuộc tổng điều tra trên các phương tiện phòng ngừa và giảm nhẹ các vụ nổ bụi trong quá trình công nghiệp. Một vài ví dụ khá gần đây là Gibson (1978), Scholl, Fischer và Donat (1979), Kiihnen và Zehr (1980), trường (1982a), Woodcock và Reed (1983), Siwek (1986, 1987), | Dust explosions an overview 57 MEANS FOR PREVENTING AND MITIGATING DUST EXPLOSIONS THE MEANS AVAILABLE AN OVERVIEW The literature on the subject is substantial. Many authors have published short general surveys on means of preventing and mitigating dust explosions in the process industry. A few fairly recent examples are Gibson 1978 Scholl Fischer and Donat 1979 Kuhnen and Zehr 1980 Field 1982a Woodcock and Reed 1983 Siwek 1986 1987 Field 1987 Swift 1987 1987a and Bartknecht 1988 . The books mentioned in Section also contain valuable information. Table gives an overview of the various means that are presently known and in use. They can be divided in two main groups namely means for preventing explosions and means for their mitigation. The preventive means can again be split in the two categories prevention of ignition sources and prevention of explosible combustible cloud. One central issue is whether only preventing ignition sources can give sufficient safety or whether it is also necessary in general to employ additional means of prevention and or mitigation. In the following sections the means listed in Table 1. 9 will be discussed separately. Table Means of preventing and mitigating dust explosions a schematic overview PREVENTION MITIGATION Preventing Ignition sources Preventing explosible dust cloud a Smouldering combustion in dust dust flames 1 Inerting by N2 CO2 and rare oases i Partial inerting by inert gas b Other types of open flames . hot work g Intrinsic inerting k Isolation Sectioning c Hot surfaces h Inerting by adding inert dust 1 Venting d Electric sparks and arcs Electrostatic discharges 1 Dust concentration outside explosible range m Pressure resistant construction e Heat from mechanical impact metal sparks and hot-spots n Automatic suppression 0 Good housekeeping dust removal cleaninq PREVENTING IGNITION SOURCES Introduction The characteristics of various ignition sources are discussed in and some
