Wastewater sludge treatment

摘要

Waste sludge treatment system, comprising:-a pre-dryer (10),having a first sludge compartment (10A),which absorbs a pre-drying sludge and a first heating chamber (10B),where the first sludge compartment (10A) is connected to a first sludge channel (A1) and a second sludge channel (A2) designed to remove the dry sludge, where the first sludge compartment (10A) is also connected to a first air inlet duct (D1) equipped for the intake of dry air and to a first air outlet (E1) equipped for the discharge of dry air, and where the first heating chamber (10B) is connected to a first exhaust gas inlet channel (B1) set up for the input of exhaust gas and to a first exhaust outlet set up for the exhaust gas release (C1),-an after-dryer (11),having a second sludge compartment (11A),which absorbs a sludge to be dried and a second heating chamber (11B),where the second sludge compartment (11A) is connected to a third sludge channel (A3) and a fourth sludge channel (A4) designed to carry dry sludge, where the second sludge compartment (10B) is also connected to a second air inlet duct (D2) equipped for the intake of dry air and to a second air outlet (E2) equipped for the discharge of dry air, and where the second heating chamber (11B) is connected to a second exhaust gas inlet channel (B2) set up for the input of exhaust gas and to a second exhaust outlet set up for the release of exhaust gas (C2),A furnace (13), where the fourth sludge channel (A4) is introduced into a combustion chamber (14) by the furnace, characterized by:-the system also has a diffuser (12) which is arranged between the pre-dryer (10) and the after-dryer (11), the diffuser (12) over the secondMud channel (A2) is connected to the first sludge chamber (10A) and via the third sludge channel (A3) to the second sludge chamber (11A), and where the diffuser (12) is connected to a third air inlet duct (D3) and a third air outlet duct (E3) designed to discharge the dry air; andThe first air outlet (E1) and the third air outlet (E3) are introduced into the combustion chamber (14) of the furnace (13).