热流密度：q??1?21???1?2at1?ta?1065?80=543（W/㎡）
0.230.121??0.4430.1215.23校核t2、t3
t2?t1??10.23?q?1065??543?658 ℃ ?10.443??
658?650?100%?1.23%<5% 允许 650??1?2??0.230.12??t3?t1????q?1065?????543?116 ℃ ?????0.4430.12?2??1??116?112?100%?3.57%<5% 允许 112窑墙散热面积:A墙＝[（0.82+1.42）/2]×2.21×11＝27.23㎡ Q墙＝2qA墙＝2×543×27.23×3.6＝106369 (kJ/h)
h. 窑底
耐火层 窑 底 膨胀层 硅酸盐耐火纤维束 1350 0.1～0.3 100 隔热层 莫来石轻质高铝砖 硅藻土砖 1600℃ 900 0.310+0.176×10t 0.063+0.14×10?3-3130 130 t t1?940 ℃ ta?80 ℃
设t2?795 ℃ ，t3?340 ℃，t4?92 ℃，
?1?0.31?0.176?10?3t1?t2-3
=0.31+0.176×10（940+795）/2=0.455 W/m·℃ 2??273?t3?4?273?ta?4?4.54???????1100100???????? 4a?2.56(t3?ta)?t3?ta??273?340?4?273?80?4?4.54???????1100100???????? 4 =2.56(340?80)?340?80 =32.22 W/m·℃
?1=0.13m
?2?0.063?0.14?10?3t2?t3-3
=0.063+0.14×10（795+340）/2=0.14 W/m·℃ 2２５
?2=0.13m
?3＝0.2 W∕(m?℃)
?3=0.1m
热流密度：q??1?2?31????1?2?3at1?ta?940?80=497（W/㎡）
0.130.130.11???0.4550.140.232.22校核t2、t3、t4
t2?t1??10.13?q?940??479?798 ℃ ?10.455??798?795?100%?0.38%<5% 允许 795??1?2??0.130.13??t3?t1????q?940?????497?344 ℃ ????0.4550.14??2??1??344?340?100%?1.2%<5% 允许 340??1?2?3??0.130.130.1??t4?t1?????q?940??????497?95 ℃ ?????0.4550.140.2??23??1??95?92?100%?3.26%<5% 允许 92窑底散热面积:A底＝74.87m
则Q底＝qA底＝497×74.87×3.6＝134031(kJ/h)
2ⅱ 在缓冷带的窑体散热(47～59节)
此段温度范围为700-500℃,窑内壁平均温度600℃,窑外壁温度为40℃ i. 窑顶 窑 耐火层 顶 隔热层 莫来石轻质高铝砖 硅酸盐耐火纤维束 1600℃ 1150 0.310+0.176×10t 0.1～0.3 -3230 150 t1?600 ℃ ta?40 ℃
设t2?360 ℃ ，t3?70 ℃，
?1?0.31?0.176?10?3t1?t2-3
=0.31+0.176×10（600+360）/2=0.39 W/m·℃ 2??273?t3?4?273?ta?4?4.54???????1100100???????? 4a?2.56(t3?ta)?t3?ta ２６
??273?70?4?273?40?4?4.54???????1100100????????42.56(70?40)? =
70?40 =12.41 W/m·℃
?1=0.23m
?2＝0.2 W∕(m?℃)
?2=0.15m
热流密度：q??1?21???1?2at1?ta?600?40=394（W/㎡）
0.230.151??0.390.212.41校核t2、t3
t2?t1??10.23?q?600??394?368 ℃ ?10.39??
368?360?100%?2.22%<5% 允许 360??1?2??0.230.15??t3?t1????q?600?????394?72 ℃ ????0.390.2??2??1??72?70?100%?2.86%<5% 允许 70窑顶散热面积:
A顶?2.73?3.55?2.21?13?90.21 m2 2则Q顶＝qA顶＝394×90.21×3.6＝128067(kJ/h) j. 窑墙 窑 耐火层 墙 隔热层 莫来石轻质高铝砖 硅酸盐耐火纤维束 1600℃ 1350 0.310+0.176×10t 0.1～0.3 -3230 190 t1?600 ℃ ta?40 ℃
设t2?390 ℃ ，t3?67 ℃，
?1?0.31?0.176?10?3t1?t2-3
=0.31+0.176×10（600+390）/2=0.393 W/m·℃ 2??273?t3?4?273?ta?4?4.54???????1100100????????
a?2.56(t3?ta)4?t3?ta
２７
??273?67?4?273?40?4?4.54???????1100100????????42.56(67?40)? =
72?40 =12.17 W/m·℃
?1=0.23m
?2＝0.2 W∕(m?℃)
?2=0.19m
热流密度：q??1?21???1?2at1?ta?600?40=346（W/㎡）
0.230.191??0.3930.212.17校核t2、t3
t2?t1??10.23?q?600??346?397 ℃ ?10.393??397?390?100%?1.8%<5% 允许 390??1?2??0.230.19??t3?t1????q?600?????346?68 ℃ ????0.3930.2??2??1??68?67?100%?1.5%<5% 允许 670.68?1.4窑墙散热面积:A墙??2.21?13?29.88 m2
2则Q墙＝2qA墙＝2×346×29.88×3.6＝74463 (kJ/h)
k. 窑底
耐火层 窑 底 膨胀层 硅酸盐耐火纤维束 1350 0.1～0.3 隔热层 莫来石轻质高铝砖 硅藻土砖 1600℃ 900 0.310+0.176×10t 0.063+0.14×10?3-3230 130 t t1?600 ℃ ta?40 ℃
设t2?395 ℃ ，t3?67 ℃
?1?0.31?0.176?10?3t1?t2-3
=0.31+0.176×10（600+395）/2=0.0.393 W/m·℃ 2??273?t3?4?273?ta?4?4.54???????1100100????????
a?2.56(t3?ta)4?t3?ta ２８
??273?67?4?273?40?4?4.54???????1100100????????42.56(67?40)? =
67?40 =12.17 W/m·℃
?1=0.23m
?2?0.2 W/m·℃
?2=0.13m
热流密度：q??1?21???1?2at1?ta?600?40=340（W/㎡）
0.230.131??0.3930.212.17校核t2、t3
t2?t1??10.23?q?600??340?401 ℃ ?10.393??
401?395?100%?1.52%<5% 允许 395??1?2??0.230.13??t3?t1????q?600?????340?68 ℃ ????0.3930.2??2??1??68?67?100%?1.5%<5% 允许 67窑底散热面积:A底＝90.21 m
则Q底＝qA底＝340×90.21×3.6＝110399 (kJ/h)
2ⅲ 快冷段窑体的散热量(60～70节)
此段温度范围为500-80℃,所以窑内壁平均温度为290℃,窑外壁温度取为40℃. l. 窑顶 窑 耐火层 顶 隔热层
莫来石轻质高铝砖 硅酸盐耐火纤维束 1600℃ 1150 0.310+0.176×10t 0.1～0.3 -3230 150 t1?290 ℃ ta?40 ℃
设t2?175 ℃ ，t3?54 ℃，
?1?0.31?0.176?10?3t1?t2-3
=0.31+0.176×10（290+175）/2=0.349 W/m·℃ 2 ２９
