Plastic refractory for repairing clay sleeve of iron notch of blast furnace and preparation method of plastic refractory
A blast furnace tapping and plasticizing technology, which is applied in the field of refractory preparation and production, can solve the problems of injury to workers in front of the furnace, long construction time, etc., to improve construction and use performance, fast sintering speed, enhanced hardness and wear resistance performance effect
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[0039] The preparation method of the refractory plastic used for repairing the blast furnace tap hole mud sleeve includes the following steps:
[0040] S1. First mix and stir the components except the aluminum sulfate solution, then add 70% by weight of the aluminum sulfate solution and stir for 5 minutes to form a premix;
[0041] S2. Pack the premix in S1 into sealed bags at room temperature for trapping, the trapping time t is 36-72h, then add the remaining 30% aluminum sulfate solution to the premix and stir evenly to form primary mix;
[0042]S3. Put the primary mixture in S2 into a mud extruder for mud extrusion. The number of times n of mud extrusion is 2-6 times, and then discharge and seal the package to obtain a finished product.
Embodiment 1
[0044] Embodiment 1: In this embodiment, the components and their parts by weight are shown in Table 2 (1 part by weight=1 g or 1 part by weight=1 kg). In this embodiment, the material trapping time is t=36h, and the number of times of mud squeezing is n=2 times.
[0045] Table 2 embodiment 1-5 each component content table (weight parts)
[0046]
Embodiment 2
[0047] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the contents of each component are different, and the contents of each component are shown in Table 2.
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