| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for suppressing the expansion pressure of a coke oven by adding waste plastics in charging the waste plastics into the coke oven as a charging raw material of the coke oven. <P>SOLUTION: The manufacturing method of coke is characterized by enabling the roundness of the waste plastics to become 0.5 or less on average using the waste plastics together with coal as a charging raw material of the coke oven, provided that the roundness C is the modulus represented by C=4πA/U<SP>2</SP>wherein the perimeter length of the individual is designated as U and the cross sectional area is designated as A in the cross section vertical to the major axis of the individual. The method is further characterized by enabling the average of the average particle size to become the lower limit value or more of the following particle size of the waste plastics: the particle size lower limit value=L×thickness of softening molten layer (1), provided that L is the constant determined by the type and addition rate of the waste plastics and the average particle size is an average value of the major axis diameter and the minor axis diameter of the individual. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
