Modularized and integrative disassembling and installing methods for blast furnace

Abstract

The invention relates to the installation method field of smelting equipment of iron, in particular relates to modularized and integrative disassembling and installing methods for a blast furnace. The modularized and integrative disassembling method for the blast furnace comprises: disassembling a furnace top system, disassembling a hot wind surrounding pipe, disassembling a layer beam and casting house platform and disassembling a furnace body. The modularized and integrative disassembling method is characterized in that when the furnace top system, the hot wind surrounding pipe, the layer beam and casting house platform and the furnace body are dissembled, the modularized and integrative disassembling method is adopted. The modularized and integrative insulating method for the blast furnace comprises: installing the furnace top system, installing the hot wind surrounding pipe, carrying out furnace body construction, carrying out layer beam and casting house platform construction and carrying out finished product groove construction and is characterized in that when the furnace top system, the hot wind surrounding pipe, the furnace body, the layer beam and casting house platform and the finished product groove are installed, the modularized and integrative installing method is adopted. According to the invention, construction efficiency is high, safety is high, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of installation methods for iron smelting equipment, in particular to a modular and integrated disassembly and installation method for blast furnaces. Background technique [0002] Large blast furnaces especially 4000m 3 For the overhaul or new construction of the upper-level blast furnace, the demolition or installation works amounted to tens of thousands of tons. The existing construction technology mainly adopts the conventional method of dismantling and installing by parts. The biggest disadvantages of this method are: large amount of online construction work, many high-altitude operations, difficult connection of various procedures, large interaction between cross-operations, high risk, many uncertain factors, many safety hazards, low efficiency, and large-scale construction. Heavy equipment is used for a long time, the construction period is long, and the construction plane is limited, which has a great impact ...

AI Technical Summary

Problems solved by technology

The biggest disadvantages of this method are: large amount of online construction work, many high-altitude operations, difficult connection of various procedures, large interaction between cross-operations, high risk, many uncertain factors, many safety hazards, low efficiency, and large-scale construction. Heavy equipment is used for a long time, the construction period is long, and the construction plane is limited, which has a great impact on the logistics of the entire production site. It cannot meet the short-term construction period and safety needs of large-scale blast furnaces, and has become a bottleneck for enterprises to reduce costs and improve efficiency.

However, this invention is limited to the implementation of local steel structures such as blast furnace frames, water pump houses, and heat exchange stations, and fails to solve the problems of transportation roads, transportation vehicles, and hoisting, and it needs to be hoisted by a crane to assemble them into larger modules. The on-site implementation in the area is obviously limited by the lifting capacity of transport vehicles and cranes, so the scale is small and the structure is single, which is of little significance to the entire project

Therefore, there are many difficulties and risks as follows, whether it is the conventional disassembly and assembly of parts or the combination of small-scale modular construction and conventional parts for local steel structures: 1. Large amount of online engineering: structure, equipment The removal or installation of pipes and pipes reached tens of thousands of tons

2. High risk and low efficiency of high-altitude operation: especially the construction site of the furnace top system is in the range of +46.300m ~ +115.000m, with many uncertain factors and many potential safety hazards

4. Long construction period: Due to the large amount of engineering, low efficiency of high-altitude operations, and large mutual influence of cross-operations, the construction period for blast furnace overhaul or new project disassembly and assembly is long

5. The construction plane is limited, and the logistics organization is difficult: the large-scale components to be dismantled need to be placed on the ground for disassembly, and the components need to be assembled on site in advance, and the crane station is located on the main passage, and the operation time is long. Large impact on the site, difficult logistics and transportation coordination

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