Single-tooth roller grate plate and single-tooth roller crusher

The invention provides a single-tooth-roller grate plate and a single-tooth-roller crusher, and belongs to the field of metal smelting, the single-tooth-roller grate plate comprises a grate plate body and an operation layer elastically connected to the top of the grate plate body, the elastic stretching direction of the operation layer is parallel to the vertical direction, and the grate plate body is provided with a cooling flow channel in the length direction of the grate plate body. The cooling flow channel is located on the portion, close to the operation layer, of the grid plate body and communicated with an external cooling loop, a driving cavity communicated with the cooling flow channel is formed between the operation layer and the grid plate body, the volume of the driving cavity changes along with elastic movement of the operation layer, and cooling liquid in the cooling flow channel flows along with changes of the volume of the driving cavity. Compared with the prior art, the grate plate has the ad