6.3　Disc Pelletizer

Ⅰ　Major Items

6.3.1　Angle of disc inclination shall meet the requirements of design technical documents.

Quantity checked:All.

Checking method:Check bytheodolite measurement and inclination indicator.

6.3.2　Welding quality of discs，pedestals and scraper holders shall meet the requirements of design technical documents.It shall meet the requirements of appearance quality of second-level welding line in current national standard Code for Acceptance of Construction Quality of Steel Structures GB 50205 in case of no requirement in design technical documents.

Quantity checked:20% selective examination by quantity of welding lines.

Checking method:Check by observation and weld gauge.

Ⅱ　General Items

6.3.3　Installation of pelletizer and drive unit of scrapers shall meet the requirements of design technical documents and current national standard GB 50231 General Code for Construction and Acceptance of Mechanical Equipment Installation Engineering.

Quantity checked:All.

Checking method:Check by clearance gauge，tinting and lead extrusion.

6.3.4　The inclination angle regulator of principal axis shall be in flexible rotation and fully welded with pedestal after linked properly.

Quantity checked:All.

Checking method:Check by observation and weld gauge.

6.3.5　Swing device of scraper holder shall be in flexible rotation and reliable locking.

Quantity checked:All.

Checking method:Check by observation.

6.3.6　Distances from scraper to bottom and edge of disc shall meet the requirements of design technical documents.

Quantity checked:Selective examination of 8 places.

Checking method:Check by observation and steel ruler measurement.

6.3.7　Allowable deviation of disc pelletizer installation shall be in accordance with those specified in Table 6.3.7.

Quantity checked:All.

Checking method:Refer to Table 6.3.7.