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我厂6号炉系上海锅炉厂生产的固态排渣煤粉炉。锅炉采用湿式除尘,配置4台XC-φ2800洗涤栅式水膜除尘器,燃烧后烟气分别经过4个洗涤栅和4个水膜筒,在水膜筒顶部联箱汇集,流向引风机,从烟囱排出。1973年9月投产后,由于洗涤栅经常堵灰,于1978年改成文丘里管。1982年后,锅炉厂将原锅炉额定蒸发量由230t/h改为180t/h,文丘里管喉部烟气流速从原来40m/s降为30～32m/s,除尘效率下降到85%左右,造成烟尘排放量超标。
I plant on the 6th Department of Shanghai Boiler Factory production of solid state slagging pulverized coal furnace. The boiler adopts wet dedusting and is equipped with 4 sets of XC-φ2800 screened water curtain precipitators. After combustion, the flue gas passes through 4 scrubbing grids and 4 water film canisters respectively, converging at the top of the water film canister and flowing to the draft fan. From Chimney discharge. After it was put into operation in September 1973, it was replaced by the Venturi tube in 1978 due to the frequent plugging of the wash grid. After 1982, the boiler plant will be the original boiler rated evaporation from 230t / h to 180t / h, venturi throat flue gas flow rate from the original 40m / s down to 30 ~ 32m / s, dust removal efficiency dropped to about 85% , Resulting in excessive emissions of soot.