ZHANGQi,LINLi-feng,LIU Bin.Construction Quality Control of Refractory Spray Coating for Bubbling Fluidized Bed Sludge Incinerator[J].China Water & Wastewater,2022,38(4):114-119.
Construction Quality Control of Refractory Spray Coating for Bubbling Fluidized Bed Sludge Incinerator
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第4期
Page:
114-119
Column:
Date of publication:
2022-02-17
- Abstract:
- Taking the phase Ⅱ sludge treatment and disposal project in Shanghai Bailonggang as an example, the design of lining materials for bubbling fluidized bed incinerator is introduced, the spray coating construction procedure is provided, the quality control technical points in the construction process are summarized, and the construction quality effect of refractory materials for incinerator after drying is verified. Before spraying, the construction parameters are determined by trial spraying, and the layout of spraying blocks is drawn to guide the field construction, thus the overall spraying quality can reach the standard while controlling thickness and spraying quality of each block. During the spraying process, the spraying quality is guaranteed by controlling the amount of water, air pressure and spray gun angle according to the trial spraying process parameters. In the drying stage after completing all the refractory material construction work of incinerator, the 0-125 ℃ rise stage in the theoretical temperature rise curve is adjusted from 5 to 8 h, according to the actual construction environment and material water addition, so as to slow down the temperature rise speed, avoid poor water drainage and reduce cracks due to too fast temperature rise. The construction quality of fire-resistant spray coating for the incinerator lining of the project has reached the requirements of control standard.
Last Update:
2022-02-17