A novel technology of tuyere protection is introduced. The ceramic coat .is synthesized by using in-situ combustion process as the internal, external, and nose protecting coat of BF tuyeres. It can effectively protect the tuyeres and reduce heat loss by cooling water. The technglogy is quick-acting, easy to use, energy-saving and can make tuyeres have long service life. The feasibility of the application of the tuyere ceramic coat is discussed and the energy-saving effect of the tuyere is compared with that of the tuyeres lined with refractory.
YANG Da-zhengGUAN YongZHANG YueLI JingHU Jun-geLI Wen-zhu
Some types of ZnO nanostructures with various shape and size, includingtetrapod-like ZnO (T-ZnO) nanorods, nanowires and nanoribbons, have been obtained by controlledgrowth process. The nanostructures of ZnO have been investigated by means of field-emission scanningelectron microscope, transmission electron microscopy and high-resolution transmission electronmicroscopy. The growth mechanisms of various ZnO nanostructures were proposed and discussed.
