6.12　Tail Device

6.12.1　Tail device shall be installed in a sequence of tail framework，travelling tail rack，tail bending rail and tail wheel.

6.12.2　The centerline of tail wheel shall be regarded as the reference for transversal centerline of tail device installation，with longitudinal centerline of sintering machine as the reference for longitudinal centerline of tail device.

6.12.3　The transversal beam of tail framework shall be dismantled temporarily because of their interference with lifting prior to installing travelling tail rack and tail wheel.

6.12.4　The tail device shall be fixed with normal bolts before alignment，which are replaced by high strength bolts after alignment.Installation of high strength bolts shall be in accordance with current national standard GB 50205 Code for Acceptance of Construction Quality of Steel Structures.

6.12.5　When lateral travelling tail rack is assembled inside tail framework，the tolerance for assembly geometrical dimensions shall be controlled strictly and shall be in accordance with the following requirements:

1　The elevation of the upper supporting wheel shall be adjusted，and checked by level and steel ruler with tolerance of±0.5mm；height differential of the supporting wheel with tolerance of 0.5mm；

2　The verticality of both side face and front end face of side plate shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 1.0/1000；

3　The transversal centerline of side plate shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 2.0mm；

4　The longitudinal centerline of side plate shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 2.0mm.

6.12.6　Installation for lateral travelling tail bending rail（Figure 6.12.6）shall be in accordance with the following requirements:

1　The elevation of the bending rail shall be adjusted，and checked by level and steel ruler with tolerance of±1.0mm；

2　The height differential（c）of corresponding points at upper and lower part of right & left bending rails shall be adjusted，and checked by level and steel ruler with tolerance of 2.0mm；

3　Gap（d，d′）from left and right bending rail to longitudinal centerline of sintering equipment shall be adjusted，and checked by wire/thread and steel ruler with tolerance of±2.0mm；

4　The verticality b-b′of side face of upper and lower bending rails shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 2.0mm.

6.12.7　The preset thermal gap for joints between tail bending rail and intermediate rail shall be in accordance with the design document.

6.12.8　Lateral travelling tail wheel（Figure 6.12.6）shall be installed after alignment of tail framework，tail travelling rack，and tail bending rail is confirmed.Tolerance shall be in accordance with following requirements:

1　The elevation of bearing shall be adjusted，and checked by level and steel ruler with tolerance of±0.5mm；

2　The levelness of shaft of tail wheel shall be adjusted，and checked by bubble level with tolerance of 0.1/1000；

3　The distance（a，a′）from left and right bearing to longitudinal centerline of sintering equipment shall be adjusted，and checked by wire/thread and steel ruler with tolerance of±1.0mm；

4　The axial centerline shall be adjusted and checked by wire/thread and steel ruler with tolerance of 1.5mm.

6.12.9　After the alignment of tail wheel，the installation tolerance of tail bending rail shall be rechecked based on the chain blade of tail wheel，which shall be in accordance with previsions 6.11.3 of this code.

6.12.10　The following requirements shall be observed during installation of upper shaft of pendulum rack of pendulum type tail wheel:

1　The elevation of bearing of the upper shaft shall be adjusted，and checked by level and steel ruler with tolerance of±0.5mm；

2　The levelness of bearing of the upper shaft shall be adjusted，and checked by bubble level with tolerance of 0.1/1000；

3　The axial centerline of the upper shaft shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 0.5mm.

6.12.11　The pendulum type tail wheel shall be installed as follows:

1　The elevation of tail bearing shall be adjusted，and checked by level and steel ruler with tolerance of±0.5mm；

2　The levelness of shaft of tail wheel shall be adjusted，and checked by bubble level with tolerance of 0.2/1000；

3　The centerlines of upper bearings at left and right pendulum rack and centerline of tail wheel bearing shall be adjusted based on the longitudinal centerline of sintering equipment，and checked by wire/thread and steel ruler with tolerance of 1.0mm；

4　The verticality of vertical column of left and right pendulum side plate shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 1.0/1000.

6.12.12　Pendulum type tail bending rail shall be installed as follows:

1　The elevation of the bending rail shall be adjusted，and checked by level and steel ruler with tolerance of±1.0mm；

2　The height differential of corresponding points at upper and lower part of left and right bending rail shall be adjusted，and checked by level and steel ruler with tolerance of 2.0mm；

3　The longitudinal centerline of left and right bending rail shall be adjusted，and checked by wire/thread and steel ruler with tolerance of 2.0mm；

4　The verticality of bending rail（difference from upper and lower point to pendant line）shall be adjusted，and checked by wire/thread and ruler with tolerance of 2.0mm.