Grate structure According to the structure of the grate, there are mainly reciprocating grate and drum grate. The structure of the rolling grate is unique and will be discussed separately later. Reciprocating grate is divided into forward and backward reciprocating grate according to its movement mode and structure form, reverse thrust reciprocating grate, combined reciprocating grate, horizontal reciprocating grate, etc. General reciprocating grate is arranged in rows and alternately. The grate piece group is composed of a fixed grate piece group. When the moving grate piece group pushes the garbage to the direction of the furnace outlet, it pushes part of the new garbage to the next layer of already burned garbage, and when it returns, it will burn some of the already burned garbage. The trash brings people to the bottom of the unburned trash to achieve a strong fire suppression effect on the trash layer, enhance the contact between the trash and the air, and make the trash layer loose, strengthen the air permeability, and strengthen the combustion. According to the burning process of garbage on the grate, the grate is divided into three sections: dry ignition section, combustion section and burning section