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A method of using waste hot blast stove balls and introducing recycled stoppers to produce aluminum carbon cladding materials

A hot blast stove and waste technology, applied in the field of refractory materials, can solve the problems of poor self-flow and slag erosion resistance, easy to be washed by molten steel and slag erosion, short service life of aluminum carbon package along the material, etc., to achieve optimization High temperature performance index, significant economic benefits, and the effect of ensuring quality

Active Publication Date: 2021-06-08
甘肃酒钢集团科力耐火材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum carbon ladle material is widely used in molten steel smelting steel ladle and ladle edge of molten iron ladle. It is used to seal and fix the refractory lining inside the ladle. It is easy to be washed by molten steel and slag erosion. For a long time, high-alumina bauxite, In the production of coke gemstones, etc., the self-flowing property and slag erosion resistance are not good, resulting in a short service life and high cost of this kind of aluminum carbon package along the material
The stopper turning materials and waste hot blast stove balls produced by the existing steel mills are all treated as industrial waste, resulting in waste of resources and environmental pollution

Method used

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  • A method of using waste hot blast stove balls and introducing recycled stoppers to produce aluminum carbon cladding materials
  • A method of using waste hot blast stove balls and introducing recycled stoppers to produce aluminum carbon cladding materials
  • A method of using waste hot blast stove balls and introducing recycled stoppers to produce aluminum carbon cladding materials

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Experimental program
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Effect test

Embodiment 1

[0043] A method of using waste hot blast bolts and introducing a recovery stove to produce aluminum carbon bags, producing the performance requirements of the erosion of anti-steel water-shaped and slag, including the following steps:

[0044] Step (1). First, the recycled waste hot blast stove, the surface debris, eliminate the surface debris, crushing the jaw crusher, the cone crusher, and Raymond grinding, the screen screening, processing and crushing process Repair iron, the particle size is 5-8, 8-15mm, 200 mesh materials;

[0045] Step (2) Recovery the fake particles between the bone, the pseudo-particles are removed by the secondary screen sieve, and the particle grade distribution is 0.5-1 mm by the secondary screen screen. 50-60%, ≤0.5mm is 40-50%;

[0046] The above-mentioned recycled waste-old hot wind burner particles and the sturdy car cuts are analyzed. According to the physical and chemical index decision (3) and step (4) product ratio; the physical and chemical ind...

Embodiment 2

[0071] A method of using waste hot blast bolts and introducing a recovery stove to produce aluminum carbon bags, producing the performance requirements of the erosion of anti-steel water-shaped and slag, including the following steps:

[0072] Step (1). First, the recycled waste hot blast stove, the surface debris, eliminate the surface debris, crushing the jaw crusher, the cone crusher, and Raymond grinding, the screen screening, processing and crushing process Repair iron, the particle size is 5-8, 8-15mm, 200 mesh materials;

[0073] Step (2) Recovery the fake particles between the bone, the pseudo-particles are removed by the secondary screen sieve, and the particle grade distribution is 0.5-1 mm by the secondary screen screen. 50-60%, ≤0.5mm is 40-50%;

[0074] The above-mentioned recycled waste-old hot wind burner particles and the sturdy car cuts are analyzed. According to the physical and chemical index decision (3) and step (4) product ratio; the physical and chemical ind...

Embodiment 3

[0099] A method of using waste hot blast bolts and introducing a recovery stove to produce aluminum carbon bags, producing the performance requirements of the erosion of anti-steel water-shaped and slag, including the following steps:

[0100] Step (1). First, the recycled waste hot blast stove, the surface debris, eliminate the surface debris, crushing the jaw crusher, the cone crusher, and Raymond grinding, the screen screening, processing and crushing process Repair iron, the particle size is 5-8, 8-15mm, 200 mesh materials;

[0101] Step (2) Recovery the fake particles between the bone, the pseudo-particles are removed by the secondary screen sieve, and the particle grade distribution is 0.5-1 mm by the secondary screen screen. 50-60%, ≤0.5mm is 40-50%;

[0102] The above-mentioned recycled waste-old hot wind burner particles and the sturdy car cuts are analyzed. According to the physical and chemical index decision (3) and step (4) product ratio; the physical and chemical ind...

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Abstract

The invention provides a method of using waste hot blast stove balls and introducing recycled stopper rods to produce aluminum carbon cladding materials, through recycling waste hot blast stove balls and introducing stopper turning material waste and alumina ultrafine powder ultra-low cement combination system, and Add kyanite, sodium tripolyphosphate, organic fiber, 446# heat-resistant stainless steel fiber, etc. 3 o 2 %, 60‑70%, SiO 2 %, 20‑25%, C%, 2‑5%, the bulk density is 2.0‑2.5g / cm 3 , the normal temperature compressive strength is 30-40Mpa, the aluminum carbon cladding material produced by the method of the present invention optimizes the high temperature performance index of the product, effectively solves the problems of low product strength and poor erosion resistance, and is used for smelting molten steel The edge of the steel ladle and molten iron ladle is used to seal and fix the inner lining of the ladle with refractory materials. It is resistant to molten steel scouring and slag erosion, and its performance in slag erosion and erosion resistance is superior to similar products. The recycling and reuse of the stopper turning material realizes the transformation of waste into wealth, energy saving and environmental protection, and remarkable economic benefits.

Description

Technical field [0001] The present invention belongs to the field of refractory materials, and the recovery process of waste materials involves a method of using waste hot blast stoves and introducing a recovery stuff to produce aluminum carbon bags. Background technique [0002] At present, the stuffed car cuts are mainly waste-abandoned traits generated during the processing of the buck, and the main use of the plug is the steel smelting continuous casting intermediate package control flow, and the material is mainly a rigid spine. The hot air ball is mainly derived from the overhaul of blast furnace hot air furnace. The hot air ball used is mainly replaced with the old hot blast stove, which is mainly used for blast furnace hot stoves. Aluminum carbon packages are widely used in steel bags of steel water, iron bags, for sealing and fixing the internal lining refractory material, vulnerable to steel water, and lagge erosion, long-term use of high aluminum alumina, Cokebel, etc....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/3826C04B2235/5212C04B2235/5216
Inventor 安建怀吕冬冬张建武凡箭
Owner 甘肃酒钢集团科力耐火材料股份有限公司