4.9　Burner

4.9.1　Site acceptance of the burner shall comply with the following requirements:

1　Burner and its accessories shall be the finished products with complete certification of the main material composition，manufacturing quality records and relevant data，and shall have certification at the time of delivery.

Check method:Checking the documents.

Sample size:100%.

2　The appearance of weldment of the burner shall have even and flat welding seam，and the residual molten slag，splash and the like shall be cleared.The casting surface shall be flat and free of casting defects.The painting shall be even.

Check method:Field visual inspection.

Sample size:20%，at least 4 pieces.

3　The allowable deviation of verticality of the flange face with respect to the axis of the burner shall be±1mm，and the allowable deviation of concentricity of the metal nozzle and the brick opening of the burner shall be 2mm.

Check method:Measuring with special tool steel ruler.

Sample size:20%，at least 4 pieces.

4.9.2　The field installation quality of the burner shall meet the following requirements:

1　The allowable deviation of the center line elevation of the burner shall be±2mm.

2　The allowable deviation of the angle of the installation plane of the burner shall be±1°.

3　The allowable height deviation of both the bottom surface of single flat flame burner brick and the furnace top surface shall be 5mm.

Check method:Measuring with special tool steel ruler.

Sample size:20%，at least 4 sets for burners in each section.

4.9.3　Commissioning of the burner shall comply with the following requirements:

1　The flame shape of the burner shall meet the design requirements.

2　The burner shall be capable of burning stably without flame lifting or flash back.

Check method:On-site observation.

Sample size:20%，at least 1 piece for each type of burners.