The outer wall of cement kiln waste heat recovery unit

The present invention discloses a cement kiln heat recovery of the outer wall, relates to the field of energy conservation in the production of cement, cement kiln to provide an outer wall capable of heat recovery using waste heat to heat the water cement rotary kiln of the outer wall. Cement kiln waste heat recovery comprising an outer wall of cement rotary kiln, collector, inlet and outlet, the heat collector is disposed outside the cement kiln, there is a distance between the collector and cement kiln, external inlet and outlet, respectively, collectors connected to both ends. The present invention can be installed to the outside of the outer wall of the rotary kiln cement, cement kiln waste heat used to heat the outer wall of the water.