Ceramic lining and tuyere small sleeve based on ceramic lining

The utility model belongs to the technical field of blast furnace smelting accessory production, and particularly relates to a ceramic lining and a tuyere small sleeve based on the ceramic lining, the ceramic lining is mainly composed of a ceramic layer, a lining structure is formed under the cooperation of an annular layer and a transition layer, heat resistance and abrasion resistance are enhanced, the structure of the ceramic lining is installed in an inner hole of the tuyere small sleeve, and therefore the tuyere small sleeve is formed. Partial area of the inner hole is covered by the ceramic layer, so that the heat resistance and the wear resistance of the tuyere small sleeve are enhanced, and the service life of the tuyere small sleeve is prolonged. 本申请属于高炉冶炼配件生产技术领域，具体涉及一种陶瓷内衬及一种基于陶瓷内衬的风口小套，陶瓷内衬以陶瓷层为主，在环状层、过渡层的配合下形成内衬结构，实现耐热性、耐磨性的强化，将陶瓷内衬的结构安装在风口小套的内孔内，使得内孔的部分区域被陶瓷层覆盖，进而实现风口小套耐热性、耐磨性的强化，延长风口小套的使用寿命。