Blast furnace shutdown method and spray gun device for anatomical research

Abstract

The invention discloses a blast furnace shutdown method and spray gun device for anatomical research, which is characterized in that it comprises the following steps: 1) designing and manufacturing a spray gun device for spraying filling materials into the tuyere swirl area of ​​the blast furnace; 2) short-term wind shutdown of the blast furnace , install the spray gun device to part of the tuyere of the blast furnace, and re-air the blast furnace after the installation of the spray gun device; 5) Effectively cut off the gas after the blast furnace shuts down, and the blast furnace cooling equipment maintains normal cooling; 6) Ventilate N2 gas into the blast furnace to cool the charge; 7) Insert a thermocouple, The thermocouple is connected to the central control computer to observe the change of the temperature field until the end of the cooling furnace. The method for shutting down the blast furnace and the spray gun device used in the anatomical research of the blast furnace of the present invention can better preserve the original state of the charges of each section of the blast furnace, is convenient for research and analysis, and has a better application prospect.

Description

technical field [0001] The invention belongs to the technical field of blast furnace anatomy research, and more specifically relates to a blast furnace shutdown method and a spray gun device for blast furnace anatomy research. Background technique [0002] Dissecting the blast furnace can maximize the understanding of the structure, shape, proportion and distribution of the charge in the blast furnace, and can understand and grasp the changes in the charge elements in the furnace with the operating state. Reasonable shutdown of the blast furnace can preserve the original state of the charge in each section of the blast furnace to the greatest extent, including the massive zone, the reflow zone, the dead material column in the hearth, the tuyere swirl area, the dead iron layer, and the eroded shape of the hearth, and the coke in the blast furnace The research on the radial change of melting loss in blast furnace, the distribution of harmful elements and the influence on charg...

AI Technical Summary

Problems solved by technology

At present, the permanent shutdown of small blast furnaces after capacity reduction provides an excellent opportunity for blast furnace anatomy, with less investment and sufficient research time. The determination of the shutdown method for blast furnace anatomy research is the key, and there is no in-depth research on this aspect in the prior art.

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