技術(shù)文章
酸堿洗滌塔計(jì)算書:(洗滌塔、酸洗滌塔、堿洗滌塔、酸洗塔、堿洗塔、酸堿洗滌塔)
1、風(fēng)量
風(fēng)量=150m3/min(1套Scrubber)
2、空塔流速:1m/s
3、塔截面:1.6m×1.6m
4、填料長(zhǎng)度:1.8m+1.8m(di一+di二)
5、作用時(shí)間:1.8S+1.8S=3.6S(di一+di二)
6、液氣比L/G=6.0:1
7、水泵參數(shù):50m3/hr×18mAq×2
8、加藥系統(tǒng)參數(shù)計(jì)算:
①投藥量計(jì)算:
M(HNO3)=63g/mol
M(NaOH)=40g/mol
HNO3:0.9kg/hr/2/63g/mol=7.15mol/hr
NaOH:7.15mol/hr×40g/mol≈0.286kg/hr
折合10濃度的NaOH:0.286kg/hr÷10=2.86kg/hr
②加藥泵參數(shù)選擇:3.9L/hr,@0.7Mpa
③藥槽(di一和di二合用)
9、數(shù)據(jù)估算:
①速率0.9kg/hr×35≈0.315kg/hr(<0.77kg/hr@15m),合格。
②濃度0.315kg/hr÷60min/hr÷150m3/min≈35mg/m3(≤240mg/m3)