CN101705326A - Repair method of mixer furnace - Google Patents
Repair method of mixer furnace Download PDFInfo
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- CN101705326A CN101705326A CN200910237205A CN200910237205A CN101705326A CN 101705326 A CN101705326 A CN 101705326A CN 200910237205 A CN200910237205 A CN 200910237205A CN 200910237205 A CN200910237205 A CN 200910237205A CN 101705326 A CN101705326 A CN 101705326A
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- high aluminum
- hot metal
- magnesium oxide
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Abstract
The invention discloses a repair method of a mixer furnace, comprising the following steps of: (1) preparing a high aluminum material from 80-90 parts of aluminium oxide and 9-20 parts of magnesium oxide which both have the granularity of less than or equal to 0.088 mm, preparing part of the high aluminum material into high aluminum aggregate with the granularity of 1-25 mm, wherein the repair material comprises the following raw materials in parts by weight: 10-20 parts of the high aluminum aggregate, 5-10 parts of the high aluminum material and 2-5 parts of the magnesium oxide; (2) mixing the repair material, then adding into a liquid containing glass water and water with the weight ratio of 2:3 to prepare a pulpy high aluminum casting material; (3) blowing a position needing repairing; (4) piling and repairing the high aluminum casting material uniformly mixed by using a shovel to the position needing repairing; (5) spraying a mixture of a high aluminum spraying and repairing material and water by a spray gun so as to spray and repair each piled and repaired gap; and (6) opening a gas heater to bake the piling and repairing position for 2-3h. By using the repair method of the mixer furnace, the granularity of the high aluminum cast material can be selected at random, meanwhile, the glass water as a binding agent has better effect than water, therefore, the repair strength is enhanced, and the mixer furnace is more durable after repaired.
Description
Technical field
The present invention relates to a kind of hot metal mixer, particularly a kind of method for repairing and mending of hot metal mixer.
Background technology
Hot metal mixer is the equipment that steelworks must use, referring to Fig. 1, the inwall of hot metal mixer is built into alumina firebrick, the hot metal mixer upper end has iron notch 1, because the hot metal mixer in use refractory brick of each several part is subjected to the molten iron impact condition different, the turning 11 of iron notch 1 and the hot metal mixer main body intersection maximum that is hit, often because this place's etch is serious, hot metal mixer is forced to overhaul.Now general steel mill adopts the high alumina Gunning refractory to carry out part through spray gun and safeguards, but because the Gunning refractory granularity is little, and water is tackiness agent, and spray repair thickness again can not be too thick, so and be not durable, repair efficiency is unsatisfactory.
Summary of the invention
For addressing the above problem, the invention provides the method for repairing and mending of hot metal mixer more durable after a kind of repair.
The method for repairing and mending of hot metal mixer of the present invention wherein, comprises step:
1) with granularity all≤aluminium sesquioxide 80-90 part of 0.088mm, magnesium oxide 9-20 part preparation high aluminium material, a high aluminium material part is made the bauxites aggregate that granularity is 1-25mm, and the raw material of patching material and weight proportion thereof are: bauxites aggregate 10-20 part, high aluminium material 5-10 part, magnesium oxide 2-5 part;
2) patching material being mixed weight ratio that the back adds bath of glass and water is to make mud shape high alumina castable in 2: 3 the liquid;
3) purge the place that needs repairing;
4) with spade the uniform high alumina casting stockpile of blending is mended the position that needs are repaired;
5) carry out spray repair with the mixture of spray gun ejection high alumina Gunning refractory and the water slit after to each heap benefit;
6) turn on the gas well heater baking heap cover was put 2～3 hours.
The method for repairing and mending of hot metal mixer of the present invention, wherein: the raw material of described high aluminium material and weight proportion thereof are: 90 parts of aluminium sesquioxides, magnesium oxide 9-10 part.
The method for repairing and mending of hot metal mixer of the present invention, wherein: the raw material of described patching material and weight proportion thereof are: 15 parts of bauxites aggregates, 7 parts of high aluminium materials, 3 parts in magnesium oxide.
The method for repairing and mending of hot metal mixer of the present invention, wherein: described spray gun is propulsion source with nitrogen.
Therefore the method for repairing and mending of hot metal mixer of the present invention repairs intensity enhancing because the high alumina casting material granularity can be selected arbitrarily, and bath of glass is that adhesive effect is better than water simultaneously, more durable after the repairing.
The method for repairing and mending of hot metal mixer of the present invention is because heap is mended thickness according to hot metal mixer etch situation, but Bao Kehou, than the easy grasp of spray repair.
Description of drawings
Fig. 1 is the sectional view of the hot metal mixer that relates to of the method for repairing and mending of hot metal mixer of the present invention.
Embodiment
First embodiment:
The method for repairing and mending of hot metal mixer of the present invention comprises step:
1) with granularity all≤9 parts of preparations of 80 parts of the aluminium sesquioxides of 0.088mm, magnesium oxide high aluminium material, a high aluminium material part is made the bauxites aggregate that granularity is 1-25mm, and the raw material of patching material and weight proportion thereof are: 10 parts of bauxites aggregates, 10 parts of high aluminium materials, 2 parts in magnesium oxide;
2) patching material being mixed weight ratio that the back adds bath of glass and water is to make mud shape high alumina castable in 2: 3 the liquid;
3) place that need repair with oxygen blow is so that the combining of high alumina castable and high alumina brick;
4) two turnings 11 of the uniform high alumina casting stockpile of blending being mended hot metal mixer iron notch 1 with spade;
5) spray repair is carried out in the slit that sprays after high alumina Gunning refractory (can adopt various existing high alumina Gunning refractories) is mended each heap with the mixture of water with spray gun, spray gun is a propulsion source with nitrogen or pneumatics wind, the most handy nitrogen, nitrogen drying, littler than pneumatics wind water content, high aluminium material is prevented from caking in spray gun, guarantees the flowability of Gunning refractory;
6) turn on the gas well heater baking heap cover was put 2 hours, and high alumina castable and high alumina Gunning refractory are reached certain intensity through high temperature sintering, can prolong the work-ing life of hot metal mixer.
Second embodiment:
The method for repairing and mending of hot metal mixer of the present invention comprises step:
1) with granularity all≤20 parts of preparations of 90 parts of the aluminium sesquioxides of 0.088mm, magnesium oxide high aluminium material, a high aluminium material part is made the bauxites aggregate that granularity is 1-25mm, and the raw material of patching material and weight proportion thereof are: 20 parts of bauxites aggregates, 5 parts of high aluminium materials, 5 parts in magnesium oxide;
2) patching material being mixed weight ratio that the back adds bath of glass and water is to make mud shape high alumina castable in 2: 3 the liquid;
3) place that need repair with oxygen blow is so that the combining of high alumina castable and high alumina brick;
4) two turnings 11 of the uniform high alumina casting stockpile of blending being mended hot metal mixer iron notch 1 with spade;
5) spray repair is carried out in the slit that sprays after high alumina Gunning refractory (can adopt various existing high alumina Gunning refractories) is mended each heap with the mixture of water with spray gun, spray gun is a propulsion source with nitrogen or pneumatics wind, the most handy nitrogen, nitrogen drying, littler than pneumatics wind water content, high aluminium material is prevented from caking in spray gun, guarantees the flowability of Gunning refractory;
6) turn on the gas well heater baking heap cover was put 3 hours, and high alumina castable and high alumina Gunning refractory are reached certain intensity through high temperature sintering, can prolong the work-ing life of hot metal mixer.
The 3rd embodiment:
The method for repairing and mending of hot metal mixer of the present invention comprises step:
1) with granularity all≤9.5 parts of preparations of 90 parts of the aluminium sesquioxides of 0.088mm, magnesium oxide high aluminium material, a high aluminium material part is made the bauxites aggregate that granularity is 1-25mm, and the raw material of patching material and weight proportion thereof are: 15 parts of bauxites aggregates, 7 parts of high aluminium materials, 3 parts in magnesium oxide;
2) patching material being mixed weight ratio that the back adds bath of glass and water is to make mud shape high alumina castable in 2: 3 the liquid;
3) place that need repair with oxygen blow is so that the combining of high alumina castable and high alumina brick;
4) two turnings 11 of the uniform high alumina casting stockpile of blending being mended hot metal mixer iron notch 1 with spade;
5) spray repair is carried out in the slit that sprays after high alumina Gunning refractory (can adopt various existing high alumina Gunning refractories) is mended each heap with the mixture of water with spray gun, spray gun is a propulsion source with nitrogen or pneumatics wind, the most handy nitrogen, nitrogen drying, littler than pneumatics wind water content, high aluminium material is prevented from caking in spray gun, guarantees the flowability of Gunning refractory;
6) turn on the gas well heater baking heap cover was put 2.5 hours, and high alumina castable and high alumina Gunning refractory are reached certain intensity through high temperature sintering, can prolong the work-ing life of hot metal mixer.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (4)
1. the method for repairing and mending of a hot metal mixer is characterized in that, comprises step:
1) with granularity all≤aluminium sesquioxide 80-90 part of 0.088mm, magnesium oxide 9-20 part preparation high aluminium material, a high aluminium material part is made the bauxites aggregate that granularity is 1-25mm, and the raw material of patching material and weight proportion thereof are: bauxites aggregate 10-20 part, high aluminium material 5-10 part, magnesium oxide 2-5 part;
2) patching material being mixed weight ratio that the back adds bath of glass and water is to make mud shape high alumina castable in 2: 3 the liquid;
3) purge the place that needs repairing;
4) with spade the uniform high alumina casting stockpile of blending is mended the position that needs are repaired;
5) carry out spray repair with the mixture of spray gun ejection high alumina Gunning refractory and the water slit after to each heap benefit;
6) turn on the gas well heater baking heap cover was put 2～3 hours.
2. the method for repairing and mending of hot metal mixer according to claim 1, it is characterized in that: the raw material of described high aluminium material and weight proportion thereof are: 90 parts of aluminium sesquioxides, magnesium oxide 9-10 part.
3. the method for repairing and mending of hot metal mixer according to claim 2, it is characterized in that: the raw material of described patching material and weight proportion thereof are: 15 parts of bauxites aggregates, 7 parts of high aluminium materials, 3 parts in magnesium oxide.
4. the method for repairing and mending of hot metal mixer according to claim 3, it is characterized in that: described spray gun is propulsion source with nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102372050A CN101705326B (en) | 2009-11-05 | 2009-11-05 | Repair method of mixer furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102372050A CN101705326B (en) | 2009-11-05 | 2009-11-05 | Repair method of mixer furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705326A true CN101705326A (en) | 2010-05-12 |
| CN101705326B CN101705326B (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102372050A Active CN101705326B (en) | 2009-11-05 | 2009-11-05 | Repair method of mixer furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325653A (en) * | 2020-09-28 | 2021-02-05 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Repairing method of metal mixer lining |
| CN113388706A (en) * | 2020-03-13 | 2021-09-14 | 中冶宝钢技术服务有限公司 | Composite repair method for blast furnace swinging spout |
-
2009
- 2009-11-05 CN CN2009102372050A patent/CN101705326B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388706A (en) * | 2020-03-13 | 2021-09-14 | 中冶宝钢技术服务有限公司 | Composite repair method for blast furnace swinging spout |
| CN113388706B (en) * | 2020-03-13 | 2022-11-01 | 中冶宝钢技术服务有限公司 | Composite repair method for blast furnace swinging chute nozzle |
| CN112325653A (en) * | 2020-09-28 | 2021-02-05 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Repairing method of metal mixer lining |
| CN112325653B (en) * | 2020-09-28 | 2022-09-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Repairing method of metal mixer lining |
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| Publication number | Publication date |
|---|---|
| CN101705326B (en) | 2011-04-27 |
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