The wear problem of circulating fluidized bed boiler was a worldwide problem a few years ago, but after a lot of experiments and practices by researchers, the current circulating fluidized bed boiler has made great progress in controlling wear. The existing control methods are: 1. Working hard on the boiler structure, such as changing the slope sliding surface of the previous boiler sanitary belt into a table surface, can reduce wear.

2. Wear-resistant spraying can be carried out on the water wall tube at the upper part of boiler Wei Ran belt 1.5-2.0m, and when necessary, wear-resistant spraying can also be carried out on the water wall at the outlet of boiler furnace about1.5m. ..

3. The patented technology of Xi 'an Thermal Power Institute can be used to install a wear-resistant wall on the water wall of the boiler furnace to control the wear of the boiler (depending on the coal quality, there may be high bed temperature and high exhaust temperature, which is not easy to load, but it will not happen when burning coal with low calorific value); The load of a general boiler depends on the specific conditions of its own boiler, such as the coal quality and coal granularity burned by the boiler, the resistance of the air distribution plate designed by the boiler, the structure of the boiler feeder, the return material of the boiler, the air-coal ratio of the boiler, etc. This should be solved according to the specific situation of the boiler, not simply in a few words.