CN103011869A - 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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- CN103011869A CN103011869A CN2013100087299A CN201310008729A CN103011869A CN 103011869 A CN103011869 A CN 103011869A CN 2013100087299 A CN2013100087299 A CN 2013100087299A CN 201310008729 A CN201310008729 A CN 201310008729A CN 103011869 A CN103011869 A CN 103011869A
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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 used back boxing of a kind of refractory castable and preparation method thereof, belong to technical field of refractory materials.
Background technology
Inwall at high-temperature reactor must be protected with suitable liner or heat shielding; therefore especially the structure that protection is positioned at its support is behind corroded in the relatively hot combustion gas; stupalith is usually 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, usually also become ceramic heat-insulation board, normally by the sintering method manufacturing, at this moment also determined ceramic protection feature.Ceramic heat-insulation board has also been proposed about the higher requirement of its mechanical load ability, and attempted by making compound structure strengthening and improving at this.
And in catalytic cracking unit, often adopt refractory castable as the wear-resistant liner of some key equipment (such as cyclonic separator, riser reactor etc.), with the work-ing life of extension device.High abrasion refractory lining lining commonly used generally adopts corundum to prepare as aggregate at present, but corundum material price is higher, and energy consumption is larger in the manufacturing processed, and easy contaminate environment.
Summary of the invention
Purpose of the present invention provides a kind of high abrasion refractory lining lining and preparation method thereof, it adopts the calcining alumine as aggregate, in the substantially constant situation of the key technical indexes and use properties, cost is reduced greatly, 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 comprised of siccative and wet feed; Described wet feed comprises 52 ~ 60 parts high alumina calcining alumina particle, 5 ~ 6 parts calcining alumine micro mist and 8 ~ 9 parts phosphate binders; Described siccative comprises 21 ~ 30 parts calcining alumine micro mist, 1.7 ~ 2.5 parts silicon powder, 1.3 ~ 1.7 parts additive and 0.5 ~ 0.7 part dopant;
Siccative and wet feed are mixed respectively, then stir with clean water, the drying cooling namely gets product high abrasion refractory lining lining.
High alumina calcining alumina particle granularity is 0.1 ~ 3mm in the described wet feed, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist is 4 ~ 8 μ m in the siccative, and the silicon powder granularity is 4 ~ 6 μ m.
Described phosphate binders is one or more the mixture in aluminum phosphate, trimagnesium phosphate or the sodium phosphate.
Described additive main component is one or both the mixture in magnesium oxide, the aluminum oxide.
Described dopant main component is one or both the mixture in silicon oxide, the 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 the Special seal plastic tank after stirring;
(2) preparation of siccative: will calcine alumine micro mist, silicon powder, additive, dopant and put into forced stirrer, then sealing is stirred, rotating speed is 100 ~ 120r/min, and churning time is 8 ~ 12min, in the woven bag with the plastics film internal layer of packing into after evenly.
(3) mix: pour the wet feed of step (1) preparation and the siccative of step (2) preparation in forced mixer mix and blend, 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% during stirring according to weather condition;
Each amount of agitation is unsuitable too much, stirs the compound finished and should stir in 20 minutes of beginning its filling is complete, contaminated or must not use above the compound of time of coagulation adding water;
(4) oven dry: the lining material that step (3) filling is complete is maintenance 24 ~ 72h in 5 ~ 32 ℃, relative humidity 75% following air, enters to dry rear normal temperature in the stoving oven and cool off again, and namely gets product high abrasion refractory lining lining.
Adopt the single-layer lining without hexsteel during application, then add the steel wire fibre of siccative gross weight 1.8% ~ 2% when step (3) is mixed, steel wire fibre evenly distributes in mixture, must not be agglomerating.
During 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; In the time of 60 ~ 110 ℃, with the speed intensification of 5 ~ 10 ℃/h, the heating-up time is 5 ~ 10h; In the time of 105 ~ 115 ℃, insulation 8h; In the time of 110 ~ 315 ℃, with the speed intensification of 25 ~ 30 ℃/h, the heating-up time is 7 ~ 8h; Insulation 24h through behind 12 ~ 24h naturally cooling, is down to normal temperature again in the time of 315 ℃.
The used mixing drum material of the described forced mixer of step (3) is stainless steel.
The present invention has following advantage: the present invention adopts the calcining alumine as aggregate, in the substantially constant situation of the key technical indexes and use properties, cost is reduced greatly, can reduce by 95% energy consumption, and substantially free from environmental pollution.High abrasion refractory lining lining by explained hereafter of the present invention has that result of use is good, cost is low, less energy-consumption, lowly the advantage such as pollute, be easy to promote the use of, and 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 comprised of siccative and wet feed; Described wet feed comprises 52 parts high alumina calcining alumina particle, 5 parts calcining alumine micro mist and 8 parts phosphate binders; Described siccative comprises 21 parts calcining alumine micro mist, 1.7 parts silicon powder, 1.3 parts additive and 0.5 part dopant;
High alumina calcining alumina particle granularity is 0.1 ~ 3mm in the described wet feed, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist is 4 ~ 8 μ m in the siccative, and the 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 the Special seal plastic tank after stirring;
(2) preparation of siccative: will calcine alumine micro mist, silicon powder, additive, dopant and put into forced stirrer, then sealing is stirred, and rotating speed is 100r/min, and churning time is 8min, in the woven bag with the plastics film internal layer of packing into after evenly.
(3) mix: pour the wet feed of step (1) preparation and the siccative of step (2) preparation in forced mixer mix and blend, rotating speed is 90r/min, churning time is 1min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% during stirring according to weather condition;
Each amount of agitation is unsuitable too much, stirs the compound finished and should stir in 20 minutes of beginning its filling is complete, contaminated or must not use above the compound of time of coagulation adding water;
(4) oven dry: the lining material that step (3) filling is complete is maintenance 24h in 5 ℃, relative humidity 75% following air, enters to dry rear normal temperature in the stoving oven and cool off again, and namely gets product high abrasion refractory lining lining.
Adopt the single-layer lining without hexsteel during application, then add the steel wire fibre of siccative gross weight 1.8% ~ 2% when step (3) is mixed, steel wire fibre evenly distributes in mixture, must not be agglomerating.
During 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; In the time of 60 ~ 110 ℃, with the speed intensification of 5 ℃/h, the heating-up time is 10h; In the time of 105 ~ 115 ℃, insulation 8h; In the time of 110 ~ 315 ℃, with the speed intensification of 25 ℃/h, the heating-up time is 8h; In the time of 315 ℃ the insulation 24h, pass through again the 12h naturally cooling after, be down to normal temperature.
The used mixing drum material of the described forced mixer of step (3) 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 comprised of siccative and wet feed; Described wet feed comprises 60 parts high alumina calcining alumina particle, 6 parts calcining alumine micro mist and 9 parts phosphate binders; Described siccative comprises 30 parts calcining alumine micro mist, 1.7 parts silicon powder, 1.3 parts additive and 0.5 part dopant;
Siccative and wet feed are mixed respectively, then stir with clean water, the drying cooling namely gets product high abrasion refractory lining lining.
High alumina calcining alumina particle granularity is 0.1 ~ 3mm in the described wet feed, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist is 4 ~ 8 μ m in the siccative, and the 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 the 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 the Special seal plastic tank after stirring;
(2) preparation of siccative: will calcine alumine micro mist, silicon powder, additive, dopant and put into forced stirrer, then sealing is stirred, and rotating speed is 120r/min, and churning time is 12min, in the woven bag with the plastics film internal layer of packing into after evenly.
(3) mix: pour the wet feed of step (1) preparation and the siccative of step (2) preparation in forced mixer mix and blend, rotating speed is 100r/min, churning time is 3min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% during stirring according to weather condition;
Each amount of agitation is unsuitable too much, stirs the compound finished and should stir in 20 minutes of beginning its filling is complete, contaminated or must not use above the compound of time of coagulation adding water;
(4) oven dry: the lining material that step (3) filling is complete is maintenance 72h in 32 ℃, relative humidity 75% following air, enters to dry rear normal temperature in the stoving oven and cool off again, and namely gets product high abrasion refractory lining lining.
Adopt the single-layer lining without hexsteel during application, then add the steel wire fibre of siccative gross weight 2% when step (3) is mixed, steel wire fibre evenly distributes in mixture, must not be agglomerating.
During 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; In the time of 60 ~ 110 ℃, with the speed intensification of 10 ℃/h, the heating-up time is 5h; In the time of 105 ~ 115 ℃, insulation 8h; In the time of 110 ~ 315 ℃, with the speed intensification of 30 ℃/h, the heating-up time is 7h; In the time of 315 ℃ the insulation 24h, pass through again the 24h naturally cooling after, be down to normal temperature.
The used mixing drum material of the described forced mixer of step (3) 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 comprised of siccative and wet feed; Described wet feed comprises 56 parts high alumina calcining alumina particle, 5 parts calcining alumine micro mist and 8 parts phosphate binders; Described siccative comprises 25 parts calcining alumine micro mist, 2 parts silicon powder, 1.5 parts additive and 0.6 part dopant;
Siccative and wet feed are mixed respectively, then stir with clean water, the drying cooling namely gets product high abrasion refractory lining lining.
High alumina calcining alumina particle granularity is 0.1 ~ 3mm in the described wet feed, and calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist is 4 ~ 8 μ m in the siccative, and the 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 the Special seal plastic tank after stirring;
(2) preparation of siccative: will calcine alumine micro mist, silicon powder, additive, dopant and put into forced stirrer, then sealing is stirred, and rotating speed is 110r/min, and churning time is 10min, in the woven bag with the plastics film internal layer of packing into after evenly.
(3) mix: pour the wet feed of step (1) preparation and the siccative of step (2) preparation in forced mixer mix and blend, rotating speed is 95r/min, churning time is 2min, adds the clean water of wet feed and siccative gross weight 2% ~ 2.5% during stirring according to weather condition;
Each amount of agitation is unsuitable too much, stirs the compound finished and should stir in 20 minutes of beginning its filling is complete, contaminated or must not use above the compound of time of coagulation adding water;
(4) oven dry: the lining material that step (3) filling is complete is maintenance 48h in 15 ℃, relative humidity 75% following air, enters to dry rear normal temperature in the stoving oven and cool off again, and namely gets product high abrasion refractory lining lining.
Adopt the single-layer lining without hexsteel during application, then add the steel wire fibre of siccative gross weight 1.8% ~ 2% when step (3) is mixed, steel wire fibre evenly distributes in mixture, must not be agglomerating.
During 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; In the time of 60 ~ 110 ℃, with the speed intensification of 8 ℃/h, the heating-up time is 7h; In the time of 105 ~ 115 ℃, insulation 8h; In the time of 110 ~ 315 ℃, with the speed intensification of 27 ℃/h, the heating-up time is 8h; In the time of 315 ℃ the insulation 24h, pass through again the 16h naturally cooling after, be down to normal temperature.
The used mixing drum material of the described forced mixer of step (3) is stainless steel.
Claims (9)
1. high abrasion refractory lining lining, it is characterized in that formula rate is as follows by weight: described high abrasion refractory lining lining is comprised of siccative and wet feed; Described wet feed comprises 52 ~ 60 parts high alumina calcining alumina particle, 5 ~ 6 parts calcining alumine micro mist and 8 ~ 9 parts phosphate binders; Described siccative comprises 21 ~ 30 parts calcining alumine micro mist, 1.7 ~ 2.5 parts silicon powder, 1.3 ~ 1.7 parts additive and 0.5 ~ 0.7 part dopant;
Siccative and wet feed are mixed respectively, then stir with clean water, the drying cooling namely gets product high abrasion refractory lining lining.
2. high abrasion refractory lining lining as claimed in claim 1, it is characterized in that: high alumina calcining alumina particle granularity is 0.1 ~ 3mm in the described wet feed, calcining alumine micro mist granularity is 4 ~ 8 μ m; The granularity of calcining alumine micro mist is 4 ~ 8 μ m in the siccative, and the silicon powder granularity is 4 ~ 6 μ m.
3. high abrasion refractory lining lining as claimed in claim 1 is characterized in that: described phosphate binders is one or more the mixture in aluminum phosphate, trimagnesium phosphate or the sodium phosphate.
4. high abrasion refractory lining lining as claimed in claim 1 is characterized in that: described additive is one or both the mixture in magnesium oxide, the aluminum oxide.
5. high abrasion refractory lining lining as claimed in claim 1 is characterized in that: described dopant is one or both the mixture in silicon oxide, the calcium phosphate.
6. the preparation method of the described high abrasion refractory lining of claim 1 lining, step is as follows by weight to it is characterized in that formula rate:
(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 the Special seal plastic tank after stirring;
(2) preparation of siccative: will calcine alumine micro mist, silicon powder, additive, dopant and put into forced stirrer, then sealing is stirred, rotating speed is 100 ~ 120r/min, and churning time is 8 ~ 12min, in the woven bag with the plastics film internal layer of packing into after evenly;
(3) mix: pour the wet feed of step (1) preparation and the siccative of step (2) preparation in forced mixer mix and blend, 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% during stirring according to weather condition;
Each amount of agitation is unsuitable too much, stirs the compound finished and should stir in 20 minutes of beginning its filling is complete, contaminated or must not use above the compound of time of coagulation adding water;
(4) oven dry: the lining material that step (3) filling is complete is maintenance 24 ~ 72h in 5 ~ 32 ℃, relative humidity 75% following air, enters to dry rear normal temperature in the stoving oven and cool off again, and namely gets product high abrasion refractory lining lining.
7. the preparation method of high abrasion refractory lining lining as claimed in claim 6, it is characterized in that: adopt the single-layer lining without hexsteel during application, then add the steel wire fibre of siccative gross weight 1.8% ~ 2% when step (3) is mixed, steel wire fibre evenly distributes in mixture, must not be agglomerating.
8. the preparation method of high abrasion refractory lining lining as claimed in claim 6 is characterized in that: during 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; In the time of 60 ~ 110 ℃, with the speed intensification of 5 ~ 10 ℃/h, the heating-up time is 5 ~ 10h; In the time of 105 ~ 115 ℃, insulation 8h; In the time of 110 ~ 315 ℃, with the speed intensification of 25 ~ 30 ℃/h, the heating-up time is 7 ~ 8h; Insulation 24h through behind 12 ~ 24h naturally cooling, is down to normal temperature again in the time of 315 ℃.
9. the preparation method of high abrasion refractory lining lining as claimed in claim 6, it is characterized in that: the used mixing drum material of the described forced mixer of step (3) is stainless steel.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267201A (en) * | 2013-05-31 | 2013-08-28 | 上海宝冶建设工业炉工程技术有限公司 | Wear-resisting ceramic lining elbow repairing bag and repairing method thereof |
| CN103539468A (en) * | 2013-10-25 | 2014-01-29 | 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 |
| CN103723969A (en) * | 2013-12-25 | 2014-04-16 | 中国天辰工程有限公司 | Fluidized bed lining material for alcohol ether to olefin and preparation method and using method of material |
| 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 |
| CN109265182A (en) * | 2018-08-23 | 2019-01-25 | 安徽瑞泰新材料科技有限公司 | A kind of anti-corrosion 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103267201A (en) * | 2013-05-31 | 2013-08-28 | 上海宝冶建设工业炉工程技术有限公司 | Wear-resisting ceramic lining elbow repairing bag and repairing method thereof |
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| CN103539468A (en) * | 2013-10-25 | 2014-01-29 | 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 |
| CN103723969A (en) * | 2013-12-25 | 2014-04-16 | 中国天辰工程有限公司 | Fluidized bed lining material for alcohol ether to olefin and preparation method and using method of material |
| 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 |
| CN109265182A (en) * | 2018-08-23 | 2019-01-25 | 安徽瑞泰新材料科技有限公司 | A kind of anti-corrosion castable |
| 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 |
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| CN103011869B (en) | 2014-07-09 |
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