METHOD FOR TREATING MUNICIPAL SLUDGE BY USING SEMI-CARBONIZATION COUPLED CARBONIZATION PROCESS, AND INTEGRATED APPARATUS

The present invention relates to the technical field of municipal sludge treatment, in particular to a method for treating municipal sludge by using a semi-carbonization coupled carbonization process, and an integrated apparatus. The integrated apparatus comprises a first heat treatment furnace (10) using direct heating and a second heat treatment furnace (20) using jacket heating, wherein the second heat treatment furnace (20) is provided with a second heating source (21); an air inlet end of the first heat treatment furnace (10) is located at a discharge end thereof; the first heat treatment furnace (10) is provided with a first heating source (11), and the first heating source (11) is connected to the air inlet end of the first heat treatment furnace (10); an air outlet end of the first heat treatment furnace (10) is connected to a dry dust removal device (12); and a jacket of the second heat treatment furnace (20) is connected to a tail gas treatment device (22). According to the present invention, by int