Environmental Engineering Reference
In-Depth Information
3.1.3 Design and Calculation of Liquid Explosive Recipe
According to the impact of oxygen balance of explosive on its explosion strength,
the principle of zero oxygen balance should be usually followed during the for-
mulation design of liquid explosive.
During the preparation of 1,000 g of binary liquid explosive, the following
equation can be used:
)
m
1
k
1
þ
m
2
k
2
¼
0
ð
3
:
3
Þ
m
1
þ
m
2
¼
1
;
000
where,
m
1
, m
2
mass of component 1 and 2, individually (g);
k
1
, k
2
oxygen balance of component 1 and 2, individually (g/g).
Based on the above equations, qualities of the two components in the 1,000 g of
liquid explosive can be obtained as the following: m
1
= 1,000k
2
/k
2
k
1
;
−
m
2
= 1,000k
1
/k
1
−
k
2
.
In the multicomponent liquid explosive, in order to simplify the calculation, the
product of mass percentage of each component in liquid explosive and the corre-
sponding oxygen balance also can be used to express oxygen balance value of the
explosive mixture. If the designed liquid explosive had several components, the
mass percentages of (n
−
2) nonmain components were decided based on other
principles or experience
first, then the following equation could be solved:
9
=
X
n
m
i
k
i
¼
0
i
¼
1
ð
3
:
4
Þ
X
n
;
m
i
k
i
¼
100
i
¼
1
where,
m
i
the percentage of the component i,
k
i
oxygen balance of the component i.
Mass percentages of the two main components were obtained. Then, several
recipes would be obtained according to the method described above, and these
recipes should be tested and modi
ed experimentally to optimize. Therefore, the
prediction of oxygen balance values of popular components could bring great
convenience to the calculation of oxygen balance and formula design of explosive
mixture.