一种回转窑弱刚性大直径锥段制作方法
By marking the position of the circular hole on the rolled blank and cutting the blank hole in stages, the problem of high difficulty and long cycle in the existing technology of tapered section processing is solved, and efficient and precise tapered section manufacturing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CITIC HEAVY INDUSTRIES CO LTD
- Filing Date
- 2026-01-09
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology for manufacturing the conical section of a φ7.2×138.5 meter coal chemical kiln, the round holes are cut out before the flat plate is rolled, which reduces the rigidity of the parts, causes deformation during rolling and welding, and has a long processing cycle, making it difficult to meet production schedule requirements.
The method of blanking-welding-irregular hole unfolding and marking-rolling-overall welding-step hole processing is adopted. By marking the position of the round hole on the rolled blank and checking it after rolling, the blank hole is cut in two steps. Combined with preheating and heat treatment before welding, the operation difficulty is reduced and the hole position is ensured to be accurate.
This approach shortens manufacturing time while ensuring processing quality, improves processing efficiency, avoids welding cracks and processing accuracy issues, and meets production schedule requirements.
Smart Images
Figure CN121552014B_ABST