Show why flour explodes records of the last ten years chov that about twenty explosions have 0 0 burred in cereal flour and feed mia with the loss of worth ol of property as well as the killing or injuring of over two hundred employee employ eeL investigations regarding the causes ot of these explosions and subsequent alro have not proved conclusively N what hat are an the difficulties to be avoided in eight cases the explosions are ar 1 e believed to it have originated from the sparks produced in the machines during thi the grinding process tiny particles of gravel or metallic substances cominb into contact with the plates of the mi bt chine may produce enough sparks to ti ignite the dust within the mach lile another possible cause tor for cereal dug explosions suggested Is the use I 1 i naked called fl flames anies |