CN104829250A - Thermal gunning mix for torpedo ladle and preparation method thereof - Google Patents
Thermal gunning mix for torpedo ladle and preparation method thereof Download PDFInfo
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- CN104829250A CN104829250A CN201510170042.4A CN201510170042A CN104829250A CN 104829250 A CN104829250 A CN 104829250A CN 201510170042 A CN201510170042 A CN 201510170042A CN 104829250 A CN104829250 A CN 104829250A
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Abstract
The present invention provides a thermal gunning mix for torpedo ladle and a preparation method thereof, and aims at resolving the problem of high brittleness and easiness to crack of the thermal gunning mix for torpedo ladle in the prior art. The method is as below: mixing 3-5mm high-alumina bauxite, 1-3mm high-alumina bauxite, 0-1mm silicon carbide, high-alumina bauxite no greater than 200 mesh, calcium aluminate cement, flake graphite powder, resin powder, asphalt powder no more than 180 mesh, explosion-proof fiber and silicon nitride aluminum to obtain a mixture a; adding water and stirring uniformly to obtain a mixture b; and conducting gunning construction on the mixture b. The invention can realize online thermal gunning of torpedo ladle; the thermal gunning mix does not burst in the construction process, and can firmly adhere to the original liner; the sprayed layer formed by the gunning mix has good corrosion resistance and good integrity; the overall structure strength and the bonding strength between new and old liners can ensure that the spraying layer is not destroyed during slag removal, so as to effectively increase the turnover rate of torpedo ladle and prolong the service life of the torpedo ladle.
Description
Technical field
The present invention relates to fire resisting material field, particularly relate to a kind of fish torpedo ladle hot Gunning refractory and preparation method thereof.
Background technology
Along with blast furnace maximize and steel-making combustion intensity reinforcement, each large iron and steel enterprise more and more uses fish torpedo ladle to transport molten iron.Fish torpedo ladle out-of-shape, builds complexity by laying bricks or stones, and inner lining material cost is high.Fish torpedo ladle is small for mouth and large for cavity, and reparation construction difficulty is large, need workman to enter fish torpedo ladle built-in function, but formwork casting and constructing is difficult, is difficult to realize abundant baking; When adopting semi dry gunning construction, dust is large, bounce-back is many, waste material, be unfavorable for that construction worker's is healthy.Adopt wet shotcrete technology to construct and then alleviate the problems referred to above to a certain extent, describe in the data such as patent documentation CN103724024A, CN101062867A and be applicable to the hot Gunning refractory that low temperature repairs fish torpedo ladle, the hot patching of fish torpedo ladle can not be used for, easy generation Decrepitation Phenomena, causes the turnover rate of fish torpedo ladle to decline.The Gunning refractory being applicable to fish torpedo ladle hot patching is described in the document such as patent CN102850071A, CN103482987A, but be all based on cement on articulated system, belong to inorganics to combine, the fragility of gained spray repair layer is large, easy cracking, resistance to fouling and heat-shock resistance poor, be difficult to obtain good result of use.
Summary of the invention
The invention provides a kind of fish torpedo ladle hot Gunning refractory and preparation method thereof, the Gunning refractory fragility being intended to solve existing fish torpedo ladle hot patching is large, easily the problem of cracking.
In order to solve above technical problem, the present invention is achieved through the following technical solutions: the hot Gunning refractory of a kind of fish torpedo ladle, according to mass fraction comprise the alumine of 20 ~ 30 parts of 3 ~ 5mm, the alumine of 10 ~ 15 parts of 1 ~ 3mm, 20 ~ 25 parts of 0 ~ 1mm silicon carbide, 10 ~ 20 parts be not more than 200 object alumines, 10 ~ 20 parts of aluminous cements, 4 ~ 6 parts of crystalline graphite powders, 2 ~ 5 parts of resin-oatmeals, 1 ~ 3 part be not more than 180 object asphalt powders, 0.01 ~ 0.02 part of explosion-proof fiber, 0.01 ~ 0.02 part of aluminium silicon nitride.
Further, according to mass fraction comprise the alumine of 30 parts of 3 ~ 5mm, the alumine of 10 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 20 parts be not more than 200 object alumines, 10 parts of aluminous cements, 6 parts of crystalline graphite powders, 2 parts of resin-oatmeals, 2 parts be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.The hot Gunning refractory explosion-proof performance of the fish torpedo ladle prepared by this proportioning is good, does not produce explosion in construction process.
Further, according to mass fraction comprise the alumine of 20 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 10 parts be not more than 200 object alumines, 18 parts of aluminous cements, 4 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.The hot Gunning refractory of the fish torpedo ladle prepared by this proportioning can be integrated with original liner secure adhesion, and the sprayed coating that Gunning refractory is formed has good corrosion resistance and good globality.
Further, according to mass fraction comprise the alumine of 25 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 14 parts be not more than 200 object alumines, 11 parts of aluminous cements, 5 parts of crystalline graphite powders, 4 parts of resin-oatmeals, 1 part be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.The hot Gunning refractory intensity of the fish torpedo ladle prepared by this proportioning is large, and the cohesive strength between original liner can ensure that sprayed coating does not wreck when removing the gred.
Further, according to mass fraction comprise the alumine of 23 parts of 3 ~ 5mm, the alumine of 12 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 12 parts be not more than 200 object alumines, 20 parts of aluminous cements, 6 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.The hot Gunning refractory heat resistance of the fish torpedo ladle prepared by this proportioning is good, and iron-resistant water erosion ability is strong, can work-ing life of significant prolongation fish torpedo ladle.
Further, Al in described alumine
2o
3mass percentage>=85%.
Further, mass percentage >=90% of SiC in described silicon carbide.
Further, described aluminium silicon nitride granularity is not more than 325 orders.
Further, described explosion-proof fiber to be fusing point the be water soluble fibre of 80 DEG C.
A kind ofly prepare the method for fish torpedo ladle with hot Gunning refractory, by the silicon carbide of the alumine of the alumine of 20 ~ 30 parts of 3 ~ 5mm, 10 ~ 15 parts of 1 ~ 3mm, 20 ~ 25 parts of 0 ~ 1mm, 10 ~ 20 parts be not more than 200 object alumines, 10 ~ 20 parts of aluminous cements, 4 ~ 6 parts of crystalline graphite powders, 2 ~ 5 parts of resin-oatmeals, 1 ~ 3 part be not more than 180 object asphalt powders, 0.01 ~ 0.02 part of explosion-proof fiber, 0.01 ~ 0.02 part of aluminium silicon nitride mixing, obtain compound a; In compound a, add water, stir and obtain mixture b, the mass percent of water in mixture b is for accounting for 8 ~ 10%; Then mixture b is added in spraying machine and carry out spray repair construction.
Compared with prior art advantage of the present invention is: the hot Gunning refractory of fish torpedo ladle prepared by the present invention can realize the online hot spray repair to fish torpedo ladle, explosion is not produced in construction process, and can be integrated with original liner secure adhesion, the sprayed coating that Gunning refractory is formed has good corrosion resistance and good globality, cohesive strength between overall construction intensity and new and old liner can ensure that sprayed coating does not wreck when removing the gred, effectively raise the equipment turnover rate of fish torpedo ladle, extend the work-ing life of fish torpedo ladle.
The hot Gunning refractory of fish torpedo ladle prepared by the present invention achieves the rapid-maintenance to torpedo tank liner, in construction process, do not produce Decrepitation Phenomena, can be integrated with original liner secure adhesion, and simultaneously under iron ladle working conditions, sprayed coating can produce sintering; And in the process of sprayed coating formation work liner, from construction temperature to all stage of sintering, himself intensity can meet iron ladle requirements of one's work, improve repairing quality, effectively prevent Lou iron, sticky tank, freeze the generation of the great industrial accidents such as tank, extend the work-ing life of molten iron torpedo pot.
Embodiment
Embodiment one:
The hot Gunning refractory of a kind of fish torpedo ladle, according to mass fraction comprise the alumine of 30 parts of 3 ~ 5mm, the alumine of 10 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 20 parts be not more than 200 object alumines, 10 parts of aluminous cements, 6 parts of crystalline graphite powders, 2 parts of resin-oatmeals, 2 parts be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.
Al in described alumine
2o
3mass percentage>=85%.Mass percentage >=90% of SiC in described silicon carbide.Described aluminium silicon nitride granularity is not more than 325 orders.Described explosion-proof fiber to be fusing point the be water soluble fibre of 80 DEG C.
A kind ofly prepare the method for fish torpedo ladle with hot Gunning refractory, by the silicon carbide of the alumine of the alumine of 30 parts of 3 ~ 5mm, 10 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm, 20 parts be not more than 200 object alumines, 10 parts of aluminous cements, 6 parts of crystalline graphite powders, 2 parts of resin-oatmeals, 2 parts be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride mixing, obtain compound a; In compound a, add water, stir and obtain mixture b, the mass percent of water in mixture b is for accounting for 8%; Then mixture b is added in spraying machine and carry out spray repair construction.
Embodiment two:
Be with the difference of other embodiment: according to mass fraction comprise the alumine of 20 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 10 parts be not more than 200 object alumines, 18 parts of aluminous cements, 4 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.
The mass percent of water in mixture b is for accounting for 10%.
Embodiment three:
Be with the difference of other embodiment: according to mass fraction comprise the alumine of 25 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 14 parts be not more than 200 object alumines, 11 parts of aluminous cements, 5 parts of crystalline graphite powders, 4 parts of resin-oatmeals, 1 part be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.
The mass percent of water in mixture b is for accounting for 8.5%.
Embodiment four:
Be with the difference of other embodiment: according to mass fraction comprise the alumine of 23 parts of 3 ~ 5mm, the alumine of 12 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 12 parts be not more than 200 object alumines, 20 parts of aluminous cements, 6 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.
The mass percent of water in mixture b is for accounting for 9.3%.
The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (10)
1. the hot Gunning refractory of fish torpedo ladle, is characterized in that: according to mass fraction comprise the alumine of 20 ~ 30 parts of 3 ~ 5mm, the alumine of 10 ~ 15 parts of 1 ~ 3mm, 20 ~ 25 parts of 0 ~ 1mm silicon carbide, 10 ~ 20 parts be not more than 200 object alumines, 10 ~ 20 parts of aluminous cements, 4 ~ 6 parts of crystalline graphite powders, 2 ~ 5 parts of resin-oatmeals, 1 ~ 3 part be not more than 180 object asphalt powders, 0.01 ~ 0.02 part of explosion-proof fiber, 0.01 ~ 0.02 part of aluminium silicon nitride.
2. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: according to mass fraction comprise the alumine of 30 parts of 3 ~ 5mm, the alumine of 10 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 20 parts be not more than 200 object alumines, 10 parts of aluminous cements, 6 parts of crystalline graphite powders, 2 parts of resin-oatmeals, 2 parts be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.
3. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: according to mass fraction comprise the alumine of 20 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 10 parts be not more than 200 object alumines, 18 parts of aluminous cements, 4 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.
4. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: according to mass fraction comprise the alumine of 25 parts of 3 ~ 5mm, the alumine of 15 parts of 1 ~ 3mm, 25 parts of 0 ~ 1mm silicon carbide, 14 parts be not more than 200 object alumines, 11 parts of aluminous cements, 5 parts of crystalline graphite powders, 4 parts of resin-oatmeals, 1 part be not more than 180 object asphalt powders, 0.01 part of explosion-proof fiber, 0.01 part of aluminium silicon nitride.
5. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: according to mass fraction comprise the alumine of 23 parts of 3 ~ 5mm, the alumine of 12 parts of 1 ~ 3mm, 20 parts of 0 ~ 1mm silicon carbide, 12 parts be not more than 200 object alumines, 20 parts of aluminous cements, 6 parts of crystalline graphite powders, 5 parts of resin-oatmeals, 3 parts be not more than 180 object asphalt powders, 0.02 part of explosion-proof fiber, 0.02 part of aluminium silicon nitride.
6. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: Al in described alumine
2o
3mass percentage>=85%.
7. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: mass percentage >=90% of SiC in described silicon carbide.
8. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: described aluminium silicon nitride granularity is not more than 325 orders.
9. the hot Gunning refractory of a kind of fish torpedo ladle according to claim 1, is characterized in that: described explosion-proof fiber to be fusing point the be water soluble fibre of 80 DEG C.
10. prepare the method for fish torpedo ladle with hot Gunning refractory for one kind, it is characterized in that: by the silicon carbide of the alumine of the alumine of 20 ~ 30 parts of 3 ~ 5mm, 10 ~ 15 parts of 1 ~ 3mm, 20 ~ 25 parts of 0 ~ 1mm, 10 ~ 20 parts be not more than 200 object alumines, 10 ~ 20 parts of aluminous cements, 4 ~ 6 parts of crystalline graphite powders, 2 ~ 5 parts of resin-oatmeals, 1 ~ 3 part be not more than 180 object asphalt powders, 0.01 ~ 0.02 part of explosion-proof fiber, 0.01 ~ 0.02 part of aluminium silicon nitride mixing, obtain compound a; In compound a, add water, stir and obtain mixture b, the mass percent of water in mixture b is for accounting for 8 ~ 10%; Then mixture b is added in spraying machine and carry out spray repair construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170042.4A CN104829250A (en) | 2015-04-10 | 2015-04-10 | Thermal gunning mix for torpedo ladle and preparation method thereof |
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| CN201510170042.4A CN104829250A (en) | 2015-04-10 | 2015-04-10 | Thermal gunning mix for torpedo ladle and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669224A (en) * | 2016-01-14 | 2016-06-15 | 辽宁科技大学 | Refractory material for online repairing of torpedo car's impact zone and application thereof |
| CN105801147A (en) * | 2016-04-19 | 2016-07-27 | 郑州豫元耐材有限公司 | Method for repairing torpedo ladle in thermal state |
| CN105985116A (en) * | 2015-01-27 | 2016-10-05 | 焦作诺尔曼炉业有限公司 | Baking-free castable |
| CN106242588A (en) * | 2016-07-14 | 2016-12-21 | 武汉钢铁股份有限公司 | Torpedo tank liner spray repair material for repairing and preparation method and application |
| CN106431141A (en) * | 2016-09-29 | 2017-02-22 | 山西太钢不锈钢股份有限公司 | Preparing method and application method of slag pot isolation spraying coating |
| CN107337458A (en) * | 2017-06-20 | 2017-11-10 | 浙江锦诚新材料股份有限公司 | A kind of special gunning refractory of coal injection pipe |
| CN108007752A (en) * | 2017-12-18 | 2018-05-08 | 武汉科技大学 | A kind of gunning refractory test sample containing calcium oxide and preparation method thereof |
| CN109082141A (en) * | 2018-05-31 | 2018-12-25 | 苏州睿烁环境科技有限公司 | A kind of high-temperature service coating and preparation method thereof with anti-stick effect |
| CN109369195A (en) * | 2018-10-30 | 2019-02-22 | 浙江锦诚新材料股份有限公司 | A kind of fish torpedo ladle High-Alumina thermal-state artesian repairing material and preparation method |
| CN111943693A (en) * | 2020-07-20 | 2020-11-17 | 武汉钢铁有限公司 | Torpedo tank lining smearing repairing material, preparation method and use method |
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- 2015-04-10 CN CN201510170042.4A patent/CN104829250A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105985116A (en) * | 2015-01-27 | 2016-10-05 | 焦作诺尔曼炉业有限公司 | Baking-free castable |
| CN105669224B (en) * | 2016-01-14 | 2018-03-30 | 辽宁科技大学 | A kind of refractory material of online repairing torpedo tank car impact zone and its application |
| CN105669224A (en) * | 2016-01-14 | 2016-06-15 | 辽宁科技大学 | Refractory material for online repairing of torpedo car's impact zone and application thereof |
| CN105801147A (en) * | 2016-04-19 | 2016-07-27 | 郑州豫元耐材有限公司 | Method for repairing torpedo ladle in thermal state |
| CN105801147B (en) * | 2016-04-19 | 2018-08-28 | 郑州豫元耐材有限公司 | A kind of method of hot patching fish torpedo ladle |
| CN106242588A (en) * | 2016-07-14 | 2016-12-21 | 武汉钢铁股份有限公司 | Torpedo tank liner spray repair material for repairing and preparation method and application |
| CN106431141A (en) * | 2016-09-29 | 2017-02-22 | 山西太钢不锈钢股份有限公司 | Preparing method and application method of slag pot isolation spraying coating |
| CN106431141B (en) * | 2016-09-29 | 2018-09-14 | 山西太钢不锈钢股份有限公司 | A kind of slag ladle isolation spray paint makes and its application method |
| CN107337458A (en) * | 2017-06-20 | 2017-11-10 | 浙江锦诚新材料股份有限公司 | A kind of special gunning refractory of coal injection pipe |
| CN108007752A (en) * | 2017-12-18 | 2018-05-08 | 武汉科技大学 | A kind of gunning refractory test sample containing calcium oxide and preparation method thereof |
| CN108007752B (en) * | 2017-12-18 | 2020-10-13 | 武汉科技大学 | Gunning mix test sample containing calcium oxide and preparation method thereof |
| CN109082141A (en) * | 2018-05-31 | 2018-12-25 | 苏州睿烁环境科技有限公司 | A kind of high-temperature service coating and preparation method thereof with anti-stick effect |
| CN109369195A (en) * | 2018-10-30 | 2019-02-22 | 浙江锦诚新材料股份有限公司 | A kind of fish torpedo ladle High-Alumina thermal-state artesian repairing material and preparation method |
| CN111943693A (en) * | 2020-07-20 | 2020-11-17 | 武汉钢铁有限公司 | Torpedo tank lining smearing repairing material, preparation method and use method |
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Address after: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Applicant after: Zhejiang Jincheng new material Limited by Share Ltd Address before: 313100, Huzhou, Changxing County, Zhejiang province pheasant Town Industrial Zone Zhejiang Jincheng refractory materials Co., Ltd. Applicant before: Zhejiang Jincheng Refractories Co., Ltd. |
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Application publication date: 20150812 |
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