The sintering trolley is the main running part of the sintering machine. Its main function is to form a rotary chain between the head and tail wheels of the sintering machine. It receives the sintering mixture in the upper horizontal section. After preheating, igniting, sintering, cooling and turning, it returns to the head wheel to form a transmission cycle, so as to achieve the purpose of sintering materials. It is composed of platform body, wheel, sealing device, grate, baffle and heat insulation pad.