Multifunctional mouldable refractory for submerged arc furnace and casting and preparation method of multifunctional mouldable refractory

A multi-functional submerged arc furnace technology, applied in the field of refractory materials, can solve problems such as short shelf life and affect use, and achieve the effects of good plasticity, improved quality guarantee period, and convenient construction

Active Publication Date: 2017-07-25
PUYANG REFRACTORIES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology also uses plastics to repair, but the shelf life of these plastics is short, about 3 months at most, which affects the use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The submerged arc furnace of this embodiment, the multifunctional plastic for casting, is made up of A part and B part, and A part is made of aggregate and powder, and B part is the inorganic binding agent of liquid.

[0025] The aggregate is composed of the following components by weight: 15 kg of aggregate with a particle size greater than 3 mm and less than or equal to 5 mm, 16 kg of aggregate with a particle size greater than 1 mm and less than or equal to 3 mm, and 16 kg of aggregate with a particle size greater than 0.074 mm and Aggregate less than or equal to 1mm is 15 kg. The aggregate described in this embodiment is brown corundum.

[0026] The powder is composed of the following components by weight fraction: 16 kg of alumina micropowder, 12 kg of brown corundum powder, 5 kg of kyanite powder, 2.5 kg of silica micropowder, and 2.5 kg of chromium oxide powder.

[0027] The particle size of alumina fine powder is less than or equal to 0.045mm, Al in alumina fin...

Embodiment 2

[0037] The submerged arc furnace of this embodiment, the multifunctional plastic for casting, is made up of A part and B part, and A part is made of aggregate and powder, and B part is the inorganic binding agent of liquid.

[0038] The aggregate is composed of the following components by weight: 16 kg of aggregate with a particle size greater than 3 mm and less than or equal to 5 mm, 16 kg of aggregate with a particle size greater than 1 mm and less than or equal to 3 mm, and 16 kg of aggregate with a particle size greater than 0.074 mm and Aggregate less than or equal to 1mm is 14 kg. The aggregates described in this embodiment are brown corundum and white corundum, and each particle size of brown corundum and white corundum accounts for 50 wt%.

[0039] The powder is composed of the following components by weight fraction: 18 kg of alumina micropowder, 10 kg of brown corundum powder, 5 kg of kyanite powder, 2 kg of silica micropowder, and 3 kg of chromium oxide powder.

[...

Embodiment 3

[0050] The submerged arc furnace of this embodiment, the multifunctional plastic for casting, is made up of A part and B part, and A part is made of aggregate and powder, and B part is the inorganic binding agent of liquid.

[0051] The aggregate is composed of the following components by weight: 14 kg of high-alumina material with a particle size greater than 3 mm and less than or equal to 5 mm, 18 kg of brown corundum with a particle size greater than 1 mm and less than or equal to 3 mm, and a particle size greater than 0.074 mm And less than or equal to 1mm of brown corundum is 14 kg.

[0052] The powder is composed of the following components by weight fraction: 16 kg of alumina micropowder, 11 kg of brown corundum powder, 5 kg of kyanite powder, 3 kg of silica micropowder, and 2.5 kg of chromium oxide powder.

[0053] The particle size of alumina fine powder is less than or equal to 0.045mm, Al in alumina fine powder 2 o 3 The content is greater than or equal to 99wt%, ...

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Abstract

The invention discloses a multifunctional mouldable refractory for a submerged arc furnace and casting and a preparation method of the multifunctional mouldable refractory. The multifunctional mouldable refractory for the submerged arc furnace and casting consists of a part A and a part B, wherein the part A consists of 30-75 parts by weight of aggregates and 30-50 parts by weight of powder; and the part B comprises 12-20 parts by weight of an inorganic binding agent which is liquid. The multifunctional mouldable refractory for the submerged arc furnace and casting has the advantages that the multifunctional mouldable refractory is good in mouldable property and convenient to construct, and can be optionally formed or can repair a refractory matter working liner; chemical attack resistance is good, anti-stripping performance is good, and damage of the refractory matter working liner due to temperature shock can be resisted; and the quality guarantee period is longer than six months, the multifunctional mouldable refractory can be conveyed by a long distance, and a conveying and storing process is seldom affected by the environment temperature.

Description

technical field [0001] The invention relates to a refractory material, in particular to a submerged arc furnace, a multifunctional plastic for casting and a preparation method thereof. Background technique [0002] The submerged arc furnace uses carbon and magnesia refractories as the lining, and uses self-baking electrodes. The electrode is inserted into the charge for submerged arc operation, and the energy generated by the arc and the current passing through the resistance of the charge is used to melt and provide chemical reaction conditions. It is an industrial electric furnace with continuous feeding and intermittent iron slag discharge. At present, the poor mineralization of raw materials in submerged arc furnace smelting causes the proportion of slag to be as high as 80%. In order to improve the metal recovery rate, the smelting temperature is increased from 1470-1500°C to 1500-1550°C, and the number of slag tapping is increased and the number of iron tapping is sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/105
CPCC04B35/105C04B2235/3418C04B2235/3427C04B2235/447
Inventor 朱厚亮王京京王成朱遂宾杨利朋
Owner PUYANG REFRACTORIES GRP CO LTD
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