Replacing apparatus and replacing method of blast furnace welding type cooling plate assembly

Abstract

The present invention relates to a replacing apparatus and a replacing method of a blast furnace welding type cooling plate assembly. The replacing apparatus comprises a hydraulic jack stand, two hydraulic jacks, two trunnion hanging rod assemblies and a threaded hanging rod. The replacing method comprises that: the replacing apparatus is provided; a fillet weld between a welding type cooling plate assembly and the reinforcement ring of a furnace housing is removed; one end of the trunnion hanging rod assembly is installed on the lifting lug position of the cooling plate assembly, and the pin shaft is inserted; one end of the threaded hanging rod is installed on the threaded position of the water drain pipe of the cooling plate assembly and is connected with the threaded position of the water drain pipe of the cooling plate assembly; the hydraulic jack stand is installed, and the hanging rod of the hanging rod assembly and the threads on the other end of the threaded hanging rod are connected by using three nuts, such that the hydraulic jack stand and the cooling plate assembly are connected; the two hydraulic jacks are installed between the back surface of the hydraulic jack stand and the furnace housing outer wall; and the hydraulic jack is operated so as to pull the cooling plate assembly away from the furnace housing in the blast furnace. With the replacing apparatus and the replacing method, the blast furnace welding type cooling plate assembly can be easily and quickly replaced.

Description

technical field [0001] The invention relates to an auxiliary equipment of a metallurgical blast furnace, in particular to a blast furnace cooling plate device. Background technique [0002] The cooling plate is an important equipment of the blast furnace. During the production process of the blast furnace, the high temperature caused by a large amount of heat generated by the physical and chemical reactions of the internal charge is borne by the refractory materials built in the blast furnace shell. The cooling plate can cool the refractory materials to Extend the service life of refractories and ensure the stable production of blast furnaces. [0003] The cooling plate is usually made of pure copper material with good thermal conductivity, and is installed in the blast furnace bosh, furnace waist, furnace body, etc. Compared with the stave type blast furnace, it has the advantage of convenient replacement. [0004] There are two structural forms of blast furnace cooling pl...

AI Technical Summary

Problems solved by technology

After the blast furnace has been in production for a period of time, the refractories in the furnace and the cooling plate assembly are tightly bonded. When it is necessary to remove the cooling plate assembly, only rely on the two lifting lugs 7c, 7c on the reinforcement ring 6'b of the cooling plate assembly 'Welded cooling plate assemblies are difficult to remove with simple tools such as chain hoists, and the construction work to replace a cooling plate assembly is very time-consuming and often takes, for example, more than 16 hours

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