Jack fixing frame for lifting boiler drum in place by using steel structure and base pressing beam under frame

By employing a dual fixing structure of limiting beams and reinforced load-bearing boxes during boiler drum hoisting, combined with wire rope guides for wire straighteners and hubs, the problems of unstable connections and wire rope wear in existing technologies have been solved, thereby improving stability and efficiency.

CN122355154APending Publication Date: 2026-07-10CHINA NAT CHEM ENG THIRD CONSTR
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Patent Information

Application Number
CN202610479006.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-13
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

During the hoisting of existing boiler drums, the connection between the jack fixing frame and the base pressure beam is not firm, the limiting effect is poor, the load-bearing structure design is unreasonable, and there is a lack of wire rope guiding structure, which makes it easy for displacement, swaying, and wire rope wear to occur during hoisting, posing safety hazards.

Method used

The boiler steel frame body is laterally clamped by clamping steel beams on both sides of the limiting crossbeam, and vertically clamped by the pressing steel beams and tightening bolts of the limiting crossbeam, forming a double fixation. Anti-slip pads are set, the reinforcing structure of the load-bearing box plate is strengthened, and guide steel wire ropes for the cable puller and cable collector are installed. Wear-resistant materials are used to reduce wear.

Benefits of technology

It significantly improves the stability and fixation reliability of the hoisting system, reduces safety hazards, extends the service life of the wire rope, increases hoisting efficiency, and meets the hoisting requirements of large-tonnage steam drums.

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Abstract

The invention provides a jack fixing frame for lifting a boiler drum in place through a steel structure and an under-frame base pressing beam, and relates to the technical field of boiler drum hoisting, the jack fixing frame comprises the under-frame base pressing beam and the jack fixing frame, and the under-frame base pressing beam is detachably connected to the top of a boiler steel frame body; the lifting device is used for bearing jacks and steam drum lifting loads and transmitting the loads to the boiler steel frame body. The jack fixing frame is mounted above the under-frame base pressing beam; the boiler steel frame body is laterally clamped through the clamping type steel beams on the two sides of the limiting cross beams, the lifting longitudinal beams are vertically propped through the clamping type steel beams on the two sides of the limiting cross beams and the pressing type steel beams and the propping bolts of the limiting cross beams, double fixation is formed, meanwhile, the non-slip mat layers are arranged at the connecting parts, and the base pressing beams are effectively prevented from displacing and shaking in the lifting process; the stability of the jack and the whole hoisting system is remarkably improved, potential safety hazards are reduced, and compared with an existing simple bolt fixing structure, the fixing reliability is improved.
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