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Refractory material for smelting furnace liner

A refractory material and melting furnace technology, applied in the field of refractory materials, can solve the problems of poor resistance to metal solution permeability, unbalanced resistance to metal solution corrosion, insufficient knowledge of furnaces, etc., to achieve short repair time for furnace lining, good resistance to mechanical shock, low cost effect

Inactive Publication Date: 2018-08-03
HEFEI MINGYOU HIGH TEMPERATURE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Melting furnaces generally adopt dry vibration molding or semi-dry ramming molding. In the production process, such as careless operation, lax construction and other negligent reasons in the work, the lining structure will be loose. In addition, the knowledge and understanding of this type of furnace Not enough, the research is not deep, and at the same time affect the service life of the furnace lining
The use of dry-type dry vibration materials imported from abroad solves the problem of the service life of the furnace, but its cost is relatively high; although the price of domestic products is low, its resistance to metal solution erosion is uneven, and its resistance to metal solution permeability is poor, and it lacks safe use. sex and other shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a refractory material for smelting furnace lining, the composition of the refractory material for smelting furnace lining includes quartz sand, fused crystal powder, toughening agent, sintering agent, iron oxide, flake graphite, magnesium Sand, silica powder;

[0026] The ratio of the above ingredients is: 60 parts of quartz sand, 10 parts of fused crystal powder, 2.8 parts of toughening agent, 1.8 parts of sintering agent, 14 parts of iron oxide, 10 parts of flake graphite, 13 parts of magnesia, and 3 parts of silicon micropowder ;

[0027] The above-mentioned components are sequentially mixed and stirred, pulverized, primary granulated, re-granulated, toughened and modified, and smelted to produce a refractory material according to the proportioning ratio.

[0028] As a preferred solution, the chemical composition of the quartz sand is: more than 96% of silicon dioxide, less than 0.02% of calcium oxide, less than 0.02% of iron oxide, and less...

Embodiment 2

[0035] This embodiment provides a refractory material for smelting furnace lining, the composition of the refractory material for smelting furnace lining includes quartz sand, fused crystal powder, toughening agent, sintering agent, iron oxide, flake graphite, magnesium Sand, silica powder;

[0036] The ratio of the above ingredients is: 50 parts of quartz sand, 30 parts of fused crystal powder, 1 part of toughening agent, 3.1 parts of sintering agent, 11 parts of iron oxide, 20 parts of flake graphite, 4 parts of magnesia, and 15 parts of silicon micropowder ;

[0037] The above-mentioned components are sequentially mixed and stirred, pulverized, primary granulated, re-granulated, toughened and modified, and smelted to produce a refractory material according to the proportioning ratio.

[0038] As a preferred solution, the chemical composition of the quartz sand is: more than 96% of silicon dioxide, less than 0.02% of calcium oxide, less than 0.02% of iron oxide, and less th...

Embodiment 3

[0045] This embodiment provides a refractory material for smelting furnace lining, the composition of the refractory material for smelting furnace lining includes quartz sand, fused crystal powder, toughening agent, sintering agent, iron oxide, flake graphite, magnesium Sand, silica powder;

[0046] The ratio of the above ingredients is: 60 parts of quartz sand, 20 parts of fused crystal powder, 2.2 parts of toughening agent, 1.8 parts of sintering agent, 13 parts of iron oxide, 10 parts of flake graphite, 13 parts of magnesia, and 3 parts of silicon micropowder ;

[0047] The above-mentioned components are sequentially mixed and stirred, pulverized, primary granulated, re-granulated, toughened and modified, and smelted to produce a refractory material according to the proportioning ratio.

[0048] As a preferred solution, the chemical composition of the quartz sand is: more than 96% of silicon dioxide, less than 0.02% of calcium oxide, less than 0.02% of iron oxide, and less...

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Abstract

The invention belongs to the technical field of refractory materials and provides a refractory material for a smelting furnace liner. The refractory material is prepared from quartz sands, electric melting crystal powder, a toughener, a sintering agent, ferric oxide, crystalline flake graphite, magnesia and silica micro powder with a reasonable weight proportion and is prepared by the following steps of mixing and stirring, crushing, primary pelleting, secondary pelleting, modification with toughening and smelting. The refractory material has the advantages of high strength, high softness under load, stability in chemical performance, erosion resistance, long service life, low cost, simpleness in production technology, convenience and safety in use and short time for repairing the furnaceliner. In addition, in the formula of the refractory material, the toughener is adopted for modification, the modified refractory material has good toughening effect, and refractory material powder can be endowed with the characteristic of high toughness.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a refractory material used for furnace linings of smelting furnaces. Background technique [0002] At present, domestic existing smelting furnaces are used for smelting and casting ferrous metals (mechanical casting, nodular casting, special steel and alloy smelting), non-ferrous metal smelting (copper, alloy copper, aluminum, aluminum alloy and zinc, etc.) smelting, Smelting molten metal, etc. The lining of the melting furnace is made of conventional and general refractory materials. [0003] The smelting furnace generally adopts dry vibration forming or semi-dry ramming forming. During the production process, such as careless operation, lax construction and other negligent reasons in the work, the lining structure will be loose. In addition, the knowledge and understanding of this type of furnace Not enough, the research is not deep, and it will affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/14
CPCC04B35/66C04B35/14C04B2235/3206C04B2235/3272C04B2235/425
Inventor 王虎
Owner HEFEI MINGYOU HIGH TEMPERATURE TECH CO LTD
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