Cement kiln oxygen-fuel combustion multi-medium partition air supply grate cooler system capable of achieving energy conservation and consumption reduction

The invention discloses an all-oxygen combustion multi-medium partition air supply grate cooler system for a cement kiln, which can realize energy conservation and consumption reduction and is characterized in that a first-section grate bed and a second-section grate bed are equal in width, the length ratio is 4: (7-8), and the cooling area ratio is 4: (7-8); the gas consumption of the first cooling subarea of the first-section grate bed is less than or equal to 0.4 m < 3 >/kg.cl, and the gas consumption of the second cooling subarea of the first-section grate bed is less than or equal to 0.4 Nm < 3 >/kg.cl; the ratio of the cooling air volume introduced into the cooling area of the first-section grate bed to the cooling air volume introduced into the cooling area of the second-section grate bed is smaller than or equal to 0.8: 1.2; the roller type crusher is an ultra-high-temperature roller type crusher and comprises a cooling system, and the cooling system comprises a roller shaft water cooling system used