Method of on-line thread feeding and furnace protecting of ironmaking blast furnace and thread feeding device thereof
A technology for ironmaking blast furnace and wire feeding, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc. It can solve problems such as high maintenance costs, low utilization rate, and decreased blast furnace output, and achieve reduced wire feeding resistance and improved operability , the effect of improving working conditions
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[0028] As shown in Figure 1, the wire feeding device consists of a cored wire conduit 2, a sealing interface 3, a wire feeding gun 4, a connection cut-off valve 6, a radial sliding seal 7, a silencer 8, a cored wire receiver 9, and protection The gas pressure gauge 5, the protective gas shut-off valve 10, and the protective gas pipeline 11 constitute a protective gas system composition. 1 in Figure 1 is a blast furnace direct blowing pipe.
[0029] The wire feeding conduit 2 is used to guide the cored wire into the coal injection gun channel of the straight blowing pipe, and at the same time, the wire feeding conduit 2 is used to open the automatic locking device of the coal injection port on the original straight blowing pipe;
[0030] The sealing interface 3 is a device for connecting and sealing the wire feeding gun and the coal injection port on the straight blowing pipe;
[0031] The structure of the wire feeding gun 4 is shown in Figure 2. The wire feeding gun is composed of...
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