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Anti-blocking air hole high-dispersion air brick for anode furnace copper smelting

A high-dispersion, anode furnace technology, applied in furnaces, applications, crucible furnaces, etc., can solve the problems of poor stirring effect and impurity removal effect, large size, etc., achieve good stirring effect and purification effect, not easy to seep copper, and small bubbles Effect

Pending Publication Date: 2021-03-12
云南濮耐昆钢高温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after the air brick is blocked, it can only be discarded, or the furnace should be shut down for replacement.
The gas supply channels of the slit-type ventilation brick are a limited number of straight-through types. When the gas enters the copper liquid, the bubbles are concentrated and large in size, and the stirring effect and impurity removal effect are poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An air-permeable brick for copper smelting in an anti-clogging pore highly dispersed anode furnace, comprising the following components by weight: Al 2 o 3 50 parts of corundum aggregate particles ≥95 wt%, 8 parts of alumina fine powder, 50 parts of alumina fine powder, 1 part of anti-corrosion agent, 2 parts of binder, 1 part of micropore forming agent, and 1 part of rare earth; wherein, the The particle size of jade aggregate particles is 0.1-0.6mm, the particle size of alumina fine powder is 0.020-0.044mm, the particle size of alumina fine powder is 0.001-0.020mm, and the particle size of anti-erosion agent is 0.001-0.044mm .

[0024] The corundum aggregate is one or more of tabular corundum, dense corundum, white corundum and brown corundum, and the binder is any one or more of honey, pulp waste liquid and phenolic resin , the micropore forming agent is dextrin, organic fiber, natural fiber, starch and NH 4 Any one or more of Cl, and the length of machine fiber o...

Embodiment 2

[0026] An air-permeable brick for copper smelting in an anti-clogging pore highly dispersed anode furnace, comprising the following components by weight: Al 2 o 3 65 parts of corundum aggregate particles ≥95 wt%, 14 parts of alumina fine powder, 12 parts of alumina micropowder, 10 parts of anti-corrosion agent, 6 parts of binder, 5 parts of micropore forming agent, and 5 parts of rare earth; wherein, the The particle size of jade aggregate particles is 0.1-0.6mm, the particle size of alumina fine powder is 0.020-0.044mm, the particle size of alumina fine powder is 0.001-0.020mm, and the particle size of anti-erosion agent is 0.001-0.044mm .

[0027] The corundum aggregate is one or more of tabular corundum, dense corundum, white corundum and brown corundum, and the binder is any one or more of honey, pulp waste liquid and phenolic resin , the micropore forming agent is dextrin, organic fiber, natural fiber, starch and NH 4 Any one or more of Cl, and the length of machine fi...

Embodiment 3

[0029] An air-permeable brick for copper smelting in an anti-clogging pore highly dispersed anode furnace, comprising the following components by weight: Al 2 o 3 80 parts of corundum aggregate particles ≥95 wt%, 20 parts of alumina fine powder, 20 parts of alumina micropowder, 20 parts of anti-corrosion agent, 10 parts of binder, 10 parts of micropore forming agent, and 10 parts of rare earth; wherein, the The particle size of jade aggregate particles is 0.1-0.6mm, the particle size of alumina fine powder is 0.020-0.044mm, the particle size of alumina fine powder is 0.001-0.020mm, and the particle size of anti-erosion agent is 0.001-0.044mm .

[0030] The corundum aggregate is one or more of tabular corundum, dense corundum, white corundum and brown corundum, and the binder is any one or more of honey, pulp waste liquid and phenolic resin , the micropore forming agent is dextrin, organic fiber, natural fiber, starch and NH 4 Any one or more of Cl, and the length of machine...

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Abstract

The invention discloses an anti-blocking air hole high-dispersion air brick for anode furnace copper smelting. The air brick comprises corundum aggregate particles, aluminum oxide fine powder, aluminum oxide micro powder, an anti-erosion agent and a binding agent. The air brick is excellent in high-temperature performance, excellent in chemical stability, high in strength, good in corrosion resistance, good in volume stability, toughness and air permeability and capable of bearing the thermal shock effect in the using process without transverse fracture and stripping. Therefore, when used under the high-temperature condition, the problem of air tightness caused by fracture due to overlarge thermal shock stress generated by temperature gradient is aovided; in addition, copper is not prone to seeping, blocking is not prone to happening, and the problem that the air brick is blocked due to copper liquid seepage is effectively solved; and the air holes forming the air channel are uniformlydistributed in the whole brick body, so that the bubbles supplied to the molten copper are fine and highly-dispersed, and a better stirring effect and a better purification effect are achieved.

Description

technical field [0001] The invention belongs to the technical field of refractory materials for metal smelting, and in particular relates to a ventilating brick for copper smelting in an anti-clogging pore highly dispersed anode furnace. Background technique [0002] Breathable brick bottom blowing technology has been widely used in the iron and steel industry. By introducing inert air bubbles into the ladle, it plays a good role in uniform temperature and composition of molten steel and purifies molten steel, so that the smelting effect has been significantly improved. [0003] However, the material of the slit-type air permeable brick is dense and high-strength corundum, which is a rigid and brittle system. During the use of the permeable brick, it is prone to cross-cutting and peeling due to repeated severe thermal shocks, resulting in a sharp drop in air permeability or Loss; the thickness of the slit as the air supply channel is generally 0.1-0.2mm, and it is easy to in...

Claims

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Application Information

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IPC IPC(8): C04B35/101C04B35/105C04B35/622C04B38/00C04B38/02C04B38/06C22B15/00
CPCC04B35/101C04B35/105C04B35/622C04B38/0041C04B38/02C04B38/0645C22B15/0045C04B2235/5427C04B2235/5436C04B2235/3222C04B2235/3206C04B2235/40C04B2235/656C04B2235/6567C04B2235/9669
Inventor 陈勇唐兵刘国涛鲁志燕崔娟
Owner 云南濮耐昆钢高温材料有限公司
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