CN103011869B - High-abrasion-resistance refractory liner material and preparation method thereof - Google Patents
High-abrasion-resistance refractory liner material and preparation method thereof Download PDFInfo
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- CN103011869B CN103011869B CN201310008729.9A CN201310008729A CN103011869B CN 103011869 B CN103011869 B CN 103011869B CN 201310008729 A CN201310008729 A CN 201310008729A CN 103011869 B CN103011869 B CN 103011869B
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Abstract
The invention relates to a high-abrasion-resistance refractory liner material and a preparation method thereof, particularly a liner for a refractory casting material and a preparation method thereof, belonging to the technical field of refractory materials. The preparation method comprises the following steps: respectively mixing dry materials and wet materials, stirring together with clean water, drying, and cooling to obtain the product high-abrasion-resistance refractory liner material. By adopting calcined high-aluminum alumina as aggregate, the invention greatly lowers the manufacturing cost, can reduce the energy consumption by 95%, and basically does not pollute the environment on the premise of basically unchanged key technical indexes and service performance. The high-abrasion-resistance refractory liner material produced by the technique provided by the invention has the advantages of favorable use effect, low cost, low energy consumption, low pollution and the like, is easy to popularize and use, and can generate considerable social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of high abrasion refractory lining lining and preparation method thereof, be specifically related to a kind of refractory castable back boxing used and preparation method thereof, belong to technical field of refractory materials.
Background technology
Inwall at high-temperature reactor must be protected by suitable liner or heat shielding; therefore especially relatively hot combustion gas is corroded and is protected the structure that is positioned at its support behind; stupalith is conventionally more suitable for heat shielding than metallic substance, because it is heat-resisting and corrosion-resistant, and has the lower capacity of heat transmission.
Ceramic-lined, conventionally also become ceramic heat-insulation board, normally manufacture by sintering method, at this moment also determine ceramic protection feature.Ceramic heat-insulation board is also proposed to the requirement higher about its mechanical load ability, and attempted by manufacturing compound structure strengthening and improving at this.
And in catalytic cracking unit, often adopt the wear-resistant liner of refractory castable as some key equipment (as cyclonic separator, riser reactor etc.), with the work-ing life of extension device.Conventional high abrasion refractory lining lining generally adopts corundum to prepare as aggregate at present, but corundum material price is higher, and in manufacturing processed, energy consumption is larger, and easy contaminate environment.
Summary of the invention
Object of the present invention provides a kind of high abrasion refractory lining lining and preparation method thereof, it adopts calcining alumine as aggregate, substantially constant in the situation that, cost is greatly reduced in the key technical indexes and use properties, can reduce by 95% energy consumption, and substantially free from environmental pollution.
According to technical scheme provided by the invention, a kind of high abrasion refractory lining lining, formula rate is as follows by weight: described high abrasion refractory lining lining is made up of siccative and wet feed; Described wet feed comprises high alumina calcining alumina particle, the calcining alumine micro mist of 5 ~ 6 parts and the phosphate binders of 8 ~ 9 parts of 52 ~ 60 parts; Described siccative comprises the calcining alumine micro mist of 21 ~ 30 parts, the silicon powder of 1.7 ~ 2.5 parts, the additive of 1.3 ~ 1.7 parts and the dopant of 0.5 ~ 0.7 part;
Siccative and wet feed are mixed respectively, then stir together with clean water, the cooling product high abrasion refractory lining lining that obtains of drying.
In described wet feed, high alumina calcining alumina particle granularity is 0.1 ~ 3mm, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist in siccative is 4 ~ 8 μ m, and silicon powder granularity is 4 ~ 6 μ m.
Described phosphate binders is one or more the mixture in aluminum phosphate, trimagnesium phosphate or sodium phosphate.
Described additive main component is one or both the mixture in magnesium oxide, aluminum oxide.
Described dopant main component is one or both the mixture in silicon oxide, calcium phosphate.
The preparation method of described high abrasion refractory lining lining, formula rate by weight step is as follows:
(1) preparation of wet feed: get calcining alumine particulate material, calcining alumine micro mist is put into forced stirrer and stirred, in whipping process, slowly add phosphate binders, rotating speed is 40 ~ 50r/min, and churning time is 6 ~ 10min, puts into Special seal plastic tank after stirring;
(2) preparation of siccative: calcining alumine micro mist, silicon powder, additive, dopant are put into forced stirrer, then sealing is stirred, rotating speed is 100 ~ 120r/min, and churning time is 8 ~ 12min, packs in the woven bag with plastics film internal layer after evenly.
(3) mix: siccative prepared by wet feed prepared by step (1) and step (2) is poured mix and blend in forced mixer into, rotating speed is 90 ~ 100r/min, churning time is 1 ~ 3min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% when stirring according to weather condition;
Each amount of agitation is too much unsuitable, the compound having stirred should add water stir in 20 minutes of beginning, be clogged complete, contaminated or exceed the compound of time of coagulation and must not use;
(4) dry: step (3) is clogged to complete lining material maintenance 24 ~ 72h in 5 ~ 32 ℃, the following air of relative humidity 75%, then enter that in stoving oven, to dry rear normal temperature cooling, obtain product high abrasion refractory lining lining.
When application, adopt the single-layer lining without hexsteel, in the time that step (3) is mixed, add the steel wire fibre of siccative gross weight 1.8% ~ 2%, steel wire fibre is uniformly distributed in mixture, must not be agglomerating.
When the described oven dry of step (4), during in normal temperature ~ 60 ℃, heat up with the speed of 5 ~ 10 ℃/h, the heating-up time is 4 ~ 8h; 55 ~ 65 ℃ of insulation 8h; 60 ~ 110 ℃ time, heat up with the speed of 5 ~ 10 ℃/h, the heating-up time is 5 ~ 10h; 105 ~ 115 ℃ time, insulation 8h; 110 ~ 315 ℃ time, heat up with the speed of 25 ~ 30 ℃/h, the heating-up time is 7 ~ 8h; 315 ℃ time, be incubated 24h, then after 12 ~ 24h naturally cooling, be down to normal temperature.
The described forced mixer of step (3) mixing drum material used is stainless steel.
Tool of the present invention has the following advantages: the present invention adopts calcining alumine as aggregate, substantially constant in the situation that, cost is greatly reduced in the key technical indexes and use properties, can reduce by 95% energy consumption, and substantially free from environmental pollution.Have that result of use is good, cost is low, less energy-consumption, low pollution, the advantage such as be easy to promote the use of by the high abrasion refractory lining lining of explained hereafter of the present invention, can produce considerable Social benefit and economic benefit.
Embodiment
Embodiment 1
A kind of high abrasion refractory lining lining, formula rate is as follows by weight: described high abrasion refractory lining lining is made up of siccative and wet feed; Described wet feed comprises high alumina calcining alumina particle, the calcining alumine micro mist of 5 parts and the phosphate binders of 8 parts of 52 parts; Described siccative comprises the calcining alumine micro mist of 21 parts, the silicon powder of 1.7 parts, the additive of 1.3 parts and the dopant of 0.5 part;
In described wet feed, high alumina calcining alumina particle granularity is 0.1 ~ 3mm, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist in siccative is 4 ~ 8 μ m, and silicon powder granularity is 4 ~ 6 μ m.
Described phosphate binders is aluminum phosphate.Described additive is magnesium oxide.Described dopant is silicon oxide.
The preparation method of described high abrasion refractory lining lining, formula rate by weight step is as follows:
(1) preparation of wet feed: get calcining alumine particulate material, calcining alumine micro mist is put into forced stirrer and stirred, in whipping process, slowly add phosphate binders, rotating speed is 40r/min, and churning time is 6min, puts into Special seal plastic tank after stirring;
(2) preparation of siccative: calcining alumine micro mist, silicon powder, additive, dopant are put into forced stirrer, and then sealing is stirred, and rotating speed is 100r/min, and churning time is 8min, packs in the woven bag with plastics film internal layer after evenly.
(3) mix: siccative prepared by wet feed prepared by step (1) and step (2) is poured mix and blend in forced mixer into, rotating speed is 90r/min, churning time is 1min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% when stirring according to weather condition;
Each amount of agitation is too much unsuitable, the compound having stirred should add water stir in 20 minutes of beginning, be clogged complete, contaminated or exceed the compound of time of coagulation and must not use;
(4) dry: step (3) is clogged to complete lining material at 5 ℃, relative humidity maintenance 24h in air below 75%, then enter that in stoving oven, to dry rear normal temperature cooling, obtain product high abrasion refractory lining lining.
When application, adopt the single-layer lining without hexsteel, in the time that step (3) is mixed, add the steel wire fibre of siccative gross weight 1.8% ~ 2%, steel wire fibre is uniformly distributed in mixture, must not be agglomerating.
When the described oven dry of step (4), during in normal temperature ~ 60 ℃, heat up with the speed of 5 ℃/h, the heating-up time is 8h; 55 ~ 65 ℃ of insulation 8h; 60 ~ 110 ℃ time, heat up with the speed of 5 ℃/h, the heating-up time is 10h; 105 ~ 115 ℃ time, insulation 8h; 110 ~ 315 ℃ time, heat up with the speed of 25 ℃/h, the heating-up time is 8h; 315 ℃ time, be incubated 24h, then after 12h naturally cooling, be down to normal temperature.
The described forced mixer of step (3) mixing drum material used is stainless steel.
Embodiment 2
A kind of high abrasion refractory lining lining, formula rate is as follows by weight: described high abrasion refractory lining lining is made up of siccative and wet feed; Described wet feed comprises high alumina calcining alumina particle, the calcining alumine micro mist of 6 parts and the phosphate binders of 9 parts of 60 parts; Described siccative comprises the calcining alumine micro mist of 30 parts, the silicon powder of 1.7 parts, the additive of 1.3 parts and the dopant of 0.5 part;
Siccative and wet feed are mixed respectively, then stir together with clean water, the cooling product high abrasion refractory lining lining that obtains of drying.
In described wet feed, high alumina calcining alumina particle granularity is 0.1 ~ 3mm, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist in siccative is 4 ~ 8 μ m, and silicon powder granularity is 4 ~ 6 μ m.
Described phosphate binders is the mixture of aluminum phosphate, trimagnesium phosphate.Described additive main component is in aluminum oxide.Described dopant main component is calcium phosphate.
The preparation method of described high abrasion refractory lining lining, formula rate by weight step is as follows:
(1) preparation of wet feed: get calcining alumine particulate material, calcining alumine micro mist is put into forced stirrer and stirred, in whipping process, slowly add phosphate binders, rotating speed is 50r/min, and churning time is 6 ~ 10min, puts into Special seal plastic tank after stirring;
(2) preparation of siccative: calcining alumine micro mist, silicon powder, additive, dopant are put into forced stirrer, and then sealing is stirred, and rotating speed is 120r/min, and churning time is 12min, packs in the woven bag with plastics film internal layer after evenly.
(3) mix: siccative prepared by wet feed prepared by step (1) and step (2) is poured mix and blend in forced mixer into, rotating speed is 100r/min, churning time is 3min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% when stirring according to weather condition;
Each amount of agitation is too much unsuitable, the compound having stirred should add water stir in 20 minutes of beginning, be clogged complete, contaminated or exceed the compound of time of coagulation and must not use;
(4) dry: step (3) is clogged to complete lining material at 32 ℃, relative humidity maintenance 72h in air below 75%, then enter that in stoving oven, to dry rear normal temperature cooling, obtain product high abrasion refractory lining lining.
When application, adopt the single-layer lining without hexsteel, in the time that step (3) is mixed, add the steel wire fibre of siccative gross weight 2%, steel wire fibre is uniformly distributed in mixture, must not be agglomerating.
When the described oven dry of step (4), during in normal temperature ~ 60 ℃, heat up with the speed of 10 ℃/h, the heating-up time is 4h; 55 ~ 65 ℃ of insulation 8h; 60 ~ 110 ℃ time, heat up with the speed of 10 ℃/h, the heating-up time is 5h; 105 ~ 115 ℃ time, insulation 8h; 110 ~ 315 ℃ time, heat up with the speed of 30 ℃/h, the heating-up time is 7h; 315 ℃ time, be incubated 24h, then after 24h naturally cooling, be down to normal temperature.
The described forced mixer of step (3) mixing drum material used is stainless steel.
Embodiment 3
A kind of high abrasion refractory lining lining, formula rate is as follows by weight: described high abrasion refractory lining lining is made up of siccative and wet feed; Described wet feed comprises high alumina calcining alumina particle, the calcining alumine micro mist of 5 parts and the phosphate binders of 8 parts of 56 parts; Described siccative comprises the calcining alumine micro mist of 25 parts, the silicon powder of 2 parts, the additive of 1.5 parts and the dopant of 0.6 part;
Siccative and wet feed are mixed respectively, then stir together with clean water, the cooling product high abrasion refractory lining lining that obtains of drying.
In described wet feed, high alumina calcining alumina particle granularity is 0.1 ~ 3mm, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist in siccative is 4 ~ 8 μ m, and silicon powder granularity is 4 ~ 6 μ m.
Described phosphate binders is sodium phosphate.Described additive main component is magnesium oxide.Described dopant main component is the mixture of silicon oxide, calcium phosphate.
The preparation method of described high abrasion refractory lining lining, formula rate by weight step is as follows:
(1) preparation of wet feed: get calcining alumine particulate material, calcining alumine micro mist is put into forced stirrer and stirred, in whipping process, slowly add phosphate binders, rotating speed is 45r/min, and churning time is 8min, puts into Special seal plastic tank after stirring;
(2) preparation of siccative: calcining alumine micro mist, silicon powder, additive, dopant are put into forced stirrer, and then sealing is stirred, and rotating speed is 110r/min, and churning time is 10min, packs in the woven bag with plastics film internal layer after evenly.
(3) mix: siccative prepared by wet feed prepared by step (1) and step (2) is poured mix and blend in forced mixer into, rotating speed is 95r/min, churning time is 2min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% when stirring according to weather condition;
Each amount of agitation is too much unsuitable, the compound having stirred should add water stir in 20 minutes of beginning, be clogged complete, contaminated or exceed the compound of time of coagulation and must not use;
(4) dry: step (3) is clogged to complete lining material at 15 ℃, relative humidity maintenance 48h in air below 75%, then enter that in stoving oven, to dry rear normal temperature cooling, obtain product high abrasion refractory lining lining.
When application, adopt the single-layer lining without hexsteel, in the time that step (3) is mixed, add the steel wire fibre of siccative gross weight 1.8% ~ 2%, steel wire fibre is uniformly distributed in mixture, must not be agglomerating.
When the described oven dry of step (4), during in normal temperature ~ 60 ℃, heat up with the speed of 8 ℃/h, the heating-up time is 6h; 55 ~ 65 ℃ of insulation 8h; 60 ~ 110 ℃ time, heat up with the speed of 8 ℃/h, the heating-up time is 7h; 105 ~ 115 ℃ time, insulation 8h; 110 ~ 315 ℃ time, heat up with the speed of 27 ℃/h, the heating-up time is 8h; 315 ℃ time, be incubated 24h, then after 16h naturally cooling, be down to normal temperature.
The described forced mixer of step (3) mixing drum material used is stainless steel.
Claims (1)
1. a preparation method for high abrasion refractory lining lining, is characterized in that: formula rate is as follows by weight: described high abrasion refractory lining lining is made up of siccative and wet feed; Described wet feed comprises high alumina calcining alumina particle, the calcining alumine micro mist of 5 ~ 6 parts and the phosphate binders of 8 ~ 9 parts of 52 ~ 60 parts; Described siccative comprises the calcining alumine micro mist of 21 ~ 30 parts, the silicon powder of 1.7 ~ 2.5 parts, the additive of 1.3 ~ 1.7 parts and the dopant of 0.5 ~ 0.7 part;
Preparation process is as follows:
(1) preparation of wet feed: get calcining alumine particulate material, calcining alumine micro mist is put into forced stirrer and stirred, in whipping process, slowly add phosphate binders, rotating speed is 40 ~ 50r/min, and churning time is 6 ~ 10min, puts into Special seal plastic tank after stirring;
(2) preparation of siccative: calcining alumine micro mist, silicon powder, additive, dopant are put into forced stirrer, then sealing is stirred, rotating speed is 100 ~ 120r/min, and churning time is 8 ~ 12min, packs in the woven bag with plastics film internal layer after evenly;
(3) mix: siccative prepared by wet feed prepared by step (1) and step (2) is poured mix and blend in forced mixer into, rotating speed is 90 ~ 100r/min, churning time is 1 ~ 3min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% when stirring according to weather condition;
Each amount of agitation is too much unsuitable, the compound having stirred should add water stir in 20 minutes of beginning, be clogged complete, contaminated or exceed the compound of time of coagulation and must not use;
(4) dry: step (3) is clogged to complete lining material maintenance 24 ~ 72h in 5 ~ 32 ℃, the following air of relative humidity 75%, then enter that in stoving oven, to dry rear normal temperature cooling, obtain product high abrasion refractory lining lining;
When application, adopt the single-layer lining without hexsteel, in the time that step (3) is mixed, add the steel wire fibre of siccative gross weight 1.8% ~ 2%, steel wire fibre is uniformly distributed in mixture, must not be agglomerating;
When the described oven dry of step (4), during in normal temperature ~ 60 ℃, heat up with the speed of 5 ~ 10 ℃/h, the heating-up time is 4 ~ 8h; 55 ~ 65 ℃ of insulation 8h; 60 ~ 110 ℃ time, heat up with the speed of 5 ~ 10 ℃/h, the heating-up time is 5 ~ 10h; 105 ~ 115 ℃ time, insulation 8h; 110 ~ 315 ℃ time, heat up with the speed of 25 ~ 30 ℃/h, the heating-up time is 7 ~ 8h; 315 ℃ time, be incubated 24h, then after 12 ~ 24h naturally cooling, be down to normal temperature;
The described forced mixer of step (3) mixing drum material used is stainless steel;
In described wet feed, high alumina calcining alumina particle granularity is 0.1 ~ 3mm, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist in siccative is 4 ~ 8 μ m, and silicon powder granularity is 4 ~ 6 μ m;
Described phosphate binders is one or more the mixture in aluminum phosphate, trimagnesium phosphate or sodium phosphate;
Described additive is one or both the mixture in magnesium oxide, aluminum oxide;
Described dopant is one or both the mixture in silicon oxide, calcium phosphate.
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| CN103267201B (en) * | 2013-05-31 | 2015-09-30 | 上海宝冶建设工业炉工程技术有限公司 | The repairing bag of abrasion-proof ceramic lining elbow and method for repairing and mending thereof |
| CN103539468B (en) * | 2013-10-25 | 2015-04-08 | 宁夏天纵泓光余热发电技术有限公司 | High-alumina high-temperature refractory castable for power station boiler |
| CN103723969B (en) * | 2013-12-25 | 2016-02-10 | 中国天辰工程有限公司 | A kind of fluidized-bed lining material for alcohol ether alkene and preparation method thereof and using method |
| CN105565835A (en) * | 2015-12-25 | 2016-05-11 | 山东鲁阳节能材料股份有限公司 | Novel composite coating layer and preparation method thereof |
| CN109265182B (en) * | 2018-08-23 | 2021-06-08 | 安徽瑞泰新材料科技有限公司 | Anticorrosive castable |
| CN110204346A (en) * | 2019-07-03 | 2019-09-06 | 辽宁科技大学 | A kind of preparation method of mullite crystal whisker enhancing high alumina castable firing prefabricated section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070390A (en) * | 1991-09-07 | 1993-03-31 | 武进县横山桥镇五一节能材料厂 | Two-pack heat resistant and wear resistant lining material |
| CN1621385A (en) * | 2003-11-30 | 2005-06-01 | 刘金利 | High temperature wearable material |
| CN101298391A (en) * | 2008-07-01 | 2008-11-05 | 江西恒大高新技术股份有限公司 | Rapid heating wear resistant material for circulating fluid bed boiler and preparation thereof |
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2013
- 2013-01-10 CN CN201310008729.9A patent/CN103011869B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070390A (en) * | 1991-09-07 | 1993-03-31 | 武进县横山桥镇五一节能材料厂 | Two-pack heat resistant and wear resistant lining material |
| CN1621385A (en) * | 2003-11-30 | 2005-06-01 | 刘金利 | High temperature wearable material |
| CN101298391A (en) * | 2008-07-01 | 2008-11-05 | 江西恒大高新技术股份有限公司 | Rapid heating wear resistant material for circulating fluid bed boiler and preparation thereof |
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