Treating apparatus for incinerator exhaust gas

Abstract

Abstract PURPOSE: An incinerator exhaust has treating apparatus capable of promoting reaction and also capable of effectively using Ca-alkaline agent without loss and with high reaction rate, having the mechanism in which water from water-spraying tube or water-jetting tube provided between the Ca-alkaline agent particle moving layers is sprayed or getted into extanst gas, which water is also sprayed into the moving layer on the downstream side. CONSTITUTION: High temperature incinerator exhaust gas is, after being cooled to 250 to 150°C preferably, introduced into the apparatus 1 through the exhaust gas inlet 6, where the exhaust gas is brought into contact with the Ca-alkaline agent particle 2 packed in the reaction-dust collecing layer 4 on the upstream side to convert HCl and SO 2 present in the exhaust gas into respective CaCl 2 and CaSO 3 and also to collect dust at the dust collecting layer 4. Then, the exhaust gas containing unreacted HCl and SO 2 and fine dust is sent to the reaction-dust collecting layer 4a on the downstream side, where the unreacted gaseous HCl is brought into contact with water 5 sprayed to form aqueous HCl solution, CaO in the layer 4a is converted into Ca(OH) 2 , and HCl and SO 2 are rapidly converted into respective CaCl 2 and CaSO 3 . And, the fine dust present in the exhaust gas is collected at the layer 4a, and purified exhaust gas is discharged 7 COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Hayamizu Ito
• 👤 Susumu Mitsuta
• 👤 Shuichi Morioka

Bibliographic Details