6.3　Furnace Lining

6.3.1　The refractory building quality of furnace body shall comply with the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

6.3.2　The sequence of refractory construction of furnace body:furnace wall，furnace top，furnace bottom and skid.

6.3.3　Quality inspection of lining of the Furnace shall comply with the following requirements:

1　Quality inspection of the refractory building shall comply with the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

2　The cracks of plastic refractory lining shall be treated before baking furnace according to the requirements in Table 6.3.3.

Table 6.3.3　Treatment measures for cracks of plastic refractory lining before baking furnace

Check method:Inspection according to the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

3　The expansion gaps of refractory brickworks and unshaped refractory brickworks shall comply with the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

Check method:Inspection according to the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

Sample size:According to the requirements in current national standard GB 50309 Code for Quality Inspection and Acceptance of Industrial Furnace Building.

6.3.4　The furnace lining made up of both plastic material and castable refractory shall be baked according to the baking curve of castable refractory.