Blast furnace swing chute and high-strength prefabrication part for spout of chute
A technology of swinging chute and prefabricated parts, which is applied to blast furnace parts, blast furnaces, blast furnace details, etc., can solve problems affecting blast furnace safety production, long maintenance cycle, short service life, etc., to achieve simple and fast construction and installation, safety improvement, The effect of preventing bending
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Embodiment 2-5
[0039] In Example 2-5, the preparation method of the high-strength preform for the blast furnace swing chute nozzle is as follows:
[0040] Step 1. Mix the materials, weigh the raw materials, and mix the materials with a forced mixer. First, the fused mullite, sintered tabular corundum, black silicon carbide, zircon sand, high-purity spinel powder, alumina powder, and two Silica powder raw materials were mixed, rotating speed 100rpm, stirring for 10min, and then adding high-strength solid binder, sintering agent, antioxidant, anti-cracking agent and composite dispersant in sequence to mix and stir uniformly, rotating speed 100rpm, stirring for 5min, to obtain the mixture, After weighing the mixture, put it into a moisture-proof packaging bag for later use;
[0041] Step two, pouring the prefabrication, add the mixture to the high-speed mixer, add 5% by weight of tap water and stir for 3 minutes, the material will be evenly wet and wet, with good fluidity, the mixture will be poured...
Embodiment 1
[0051] Such as Figure 1-8 As shown, a blast furnace swing chute includes a steel shell 1, the cross section of the steel shell is U-shaped, the two side walls of the steel shell are inclined 15° outwards, the upper end of the steel shell is integrally formed with an outward bending plate 2, and the bending plate Lateral, it can provide a good support for the two wings of the steel shell, thereby avoiding the deformation of the steel shell. It can also provide a flat surface during the weaving of the mold. After the working liner is poured, it can be guided and scraped by the bending plate, and can also protect Temperature detection components. Refractory brick lining is laid in the steel shell. The refractory brick lining includes a bottom layer and a side layer 4. The bottom layer includes a cushion layer 3 laid on the bottom of the steel shell and a surface layer 5 laid on the upper surface of the cushion layer. The side layer and the side layer are composed of multiple brick...
Embodiment 2
[0056] Such as Figure 1-8 As shown, a blast furnace swing chute is different from other embodiments in that the high-strength preform is made of raw materials with the following weights: fused mullite 30Kg, sintered tabular corundum 23Kg, black silicon carbide 15Kg, zircon sand 3.6 Kg, high-purity spinel powder 4.2Kg, alumina powder 7Kg, silica powder 1.9Kg, high-strength solid binder 2.9Kg, sintering agent 3.1Kg, antioxidant 2.2Kg, anti-cracking agent 0.2Kg, composite dispersant 0.3 Kg, the wall thickness of the high-strength preform is 250-450mm.
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Abstract
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