Two-section type waste plastic thermal cracking device and thermal cracking system

The invention relates to a two-section type waste plastic thermal cracking device and a thermal cracking system, and the thermal cracking device comprises a first-section thermal cracking device used for carrying out preliminary thermal cracking on waste plastic, a tail-section thermal cracking section connected with the first-section thermal cracking device and used for carrying out further thermal cracking on the waste plastic, and a catalytic reforming section connected with the tail-section thermal cracking section, the tail-section thermal cracking section and the catalytic reforming section are coupled into a whole to form a thermal cracking catalytic reformer, and the waste plastics subjected to primary thermal cracking are subjected to tail-section thermal cracking and catalytic reforming processes in the thermal cracking catalytic reformer. On the basis of catalytic reforming and thermal cracking coupling reaction, the tail thermal cracking section and the catalytic reforming section are coupled into