CN114292116A - Special zirconium, corundum and mullite composite brick for roller kiln - Google Patents
Special zirconium, corundum and mullite composite brick for roller kiln Download PDFInfo
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- CN114292116A CN114292116A CN202210040661.1A CN202210040661A CN114292116A CN 114292116 A CN114292116 A CN 114292116A CN 202210040661 A CN202210040661 A CN 202210040661A CN 114292116 A CN114292116 A CN 114292116A
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Abstract
The invention discloses a special zirconium, corundum and mullite composite brick for a roller kiln, which comprises a first composite layer, a second composite layer and a third composite layer; the first composite layer is prepared from 40-50 parts of zircon powder, 10-15 parts of dolomite, 3.5-5.5 parts of metal aluminum powder, 3.5-5.5 parts of metal silicon micropowder, 30-55 parts of kaolin, 3-6 parts of floating beads, 1-5 parts of cellulose dry powder and 2-6 parts of a binding agent; the second composite layer is prepared from 36-54 parts of mullite powder, 5-8 parts of talcum powder, 30-50 parts of kaolin, 8-12 parts of a binding agent and 6-10 parts of cellulose dry powder; the invention effectively solves the problems that the perforated brick for the roller path kiln is produced by clay, high-alumina and other materials, and has the following defects in the using process: the low working temperature can not meet the requirements of the existing rolling kiln, the low softening temperature under load is easy to crack, and the problems of poor thermal stability and poor high-temperature and thermal shock resistance are solved.
Description
Technical Field
The invention relates to the technical field of composite bricks, in particular to a special zirconium, corundum and mullite composite brick for a roller kiln.
Background
Roller kilns are also called roller kilns, mainly used for the production of ceramic building materials such as ceramic tiles, the roller kilns are kilns fired continuously, regard rotatory roller as the tunnel kiln of blank delivery vehicle, the ceramic product is placed on many horizontal refractory rollers of very dense interval, rely on the rotation of roller to make pottery convey the kiln tail from the kiln head, so called roller kilns, the refractory material inside lining operational environment of roller kilns is very harsh, also put forward higher requirement to its refractory material performance, it is produced with materials such as clay, high alumina that all the time before the porous brick for kiln of jade way, there are following shortcomings in the use: the low working temperature can not meet the requirements of the existing rolling kiln, the loaded softening temperature is low, the cracking is easy, and the heat stability and the high temperature and thermal shock resistance are poor.
Disclosure of Invention
The invention aims to provide a special zirconium, corundum and mullite composite brick for a roller kiln, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the special zirconium, corundum and mullite composite brick for the roller kiln comprises a first composite layer, a second composite layer and a third composite layer; the first composite layer is prepared from 40-50 parts of zircon powder, 10-15 parts of dolomite, 3.5-5.5 parts of metal aluminum powder, 3.5-5.5 parts of metal silicon micropowder, 30-55 parts of kaolin, 3-6 parts of floating beads, 1-5 parts of cellulose dry powder and 2-6 parts of a binding agent; the second composite layer is prepared from 36-54 parts of mullite powder, 5-8 parts of talcum powder, 30-50 parts of kaolin, 8-12 parts of a binding agent and 6-10 parts of cellulose dry powder; the third composite layer is composed of 30-38 parts of corundum powder, 50-65 parts of kaolin, 2-5 parts of floating beads, 3.5-5.5 parts of metal aluminum powder, 3.5-5.5 parts of metal silicon micro powder, 1-5 parts of cellulose dry powder and 2-6 parts of binding agent.
Wherein the bonding agent is a mixed solution prepared from aluminum dihydrogen phosphate and diesel oil according to a mass ratio of 8: 2.
The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln comprises the following steps:
wherein, the first step: sequentially weighing raw materials required by the first composite layer, the second composite layer and the third composite layer;
step two: mixing and grinding the raw materials of zircon powder, metal aluminum powder, metal silicon micro powder, kaolin and cellulose dry powder in the first composite layer for 15-20 minutes, then adding a binding agent into the mixed material for three times in the mixing and grinding process, and finally adding floating beads and then mixing and grinding for 6-10 minutes to obtain a mixed material A;
mixing and grinding the mullite powder, kaolin and cellulose dry powder serving as the raw materials of the second composite layer for 20-25 minutes, and adding the talcum powder and the bonding agent four times in the mixing and grinding process until a mixture B is obtained;
mixing and grinding the weighed raw materials including the corundum powder, the kaolin, the metal aluminum powder, the metal silicon micro powder and the cellulose dry powder for 10-15 minutes, adding a binding agent into the mixed materials three times in the mixing and grinding process, finally adding the floating beads, mixing and grinding for 5-8 minutes to obtain a mixed material C,
step three: standing the mixture A, the mixture B and the mixture C for 24-30 hours, and after forming, respectively putting the mixture A, the mixture B and the mixture C into a mixing mill for mixing and milling for 10-15 minutes;
step four: pouring the mixture A, the mixture B and the mixture C into a mold in sequence, and pressing the mixture A, the mixture B and the mixture C into a green brick by a press machine to integrally form the mixture A, the mixture B and the mixture C;
step five: and (5) firing, molding and drying the green bricks in a high-temperature tunnel kiln.
Wherein, the drying temperature in the fifth step is 150-220 ℃.
In the fifth step, the high-temperature firing temperature is 1540-1600 ℃, and the firing time is not less than 20 hours.
Compared with the prior art, the invention has the beneficial effects that:
when the zircon and the dolomite are fired on the first composite layer, zirconium oxide is generated to improve the thermal shock resistance, mullite in the second composite layer is high-temperature resistant, the strength is high, the thermal conductivity coefficient is small, and corundum of the third composite layer is high, so that the overall hardness of the composite brick can be improved, secondary mullite is formed inside the first composite layer and the third composite layer by adding metal aluminum powder and metal silicon micro powder into the first composite layer and the third composite layer, the thermal shock resistance of the composite brick is further improved, cracking of the composite brick is prevented, the bonding property of the composite brick and mullite powder inside the second composite layer can be improved, the first composite layer, the second composite layer and the third composite layer form a whole, the problem of later-stage layering is avoided, talcum powder is added into the raw material, so that the thermal shock resistance of the composite brick is improved, cellulose dry powder is added into the raw material, so that the shaping performance of the mud material is improved, do benefit to the shaping, add in first composite bed and third composite bed raw materials and float the pearl, because float the hollow spheroid structure of pearl for this composite brick that has good thermal-insulated effect, and can alleviate the holistic weight of this composite brick greatly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a first composite layer; 2. a second composite layer; 3. and a third composite layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution: the special zirconium, corundum and mullite composite brick for the roller kiln comprises a first composite layer 1, a second composite layer 2 and a third composite layer 3; the first composite layer is prepared from 40 parts of zircon powder, 10 parts of dolomite, 3.5 parts of metal aluminum powder, 3.5 parts of metal silicon micropowder, 30 parts of kaolin, 3 parts of floating beads, 1 part of cellulose dry powder and 2 parts of a binding agent; the second composite layer is prepared from 36 parts of mullite powder, 5 parts of talcum powder, 30 parts of kaolin, 8 parts of a binding agent and 6 parts of cellulose dry powder; the third composite layer is composed of 30 parts of corundum powder, 50 parts of kaolin, 2 parts of floating beads, 3.5 parts of metal aluminum powder, 3.5 parts of metal silicon micropowder, 1 part of cellulose dry powder and 2 parts of binding agent.
Wherein the bonding agent is a mixed solution prepared from aluminum dihydrogen phosphate and diesel oil according to a mass ratio of 8: 2.
The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln comprises the following steps:
wherein, the first step: sequentially weighing raw materials required by the first composite layer, the second composite layer and the third composite layer;
step two: mixing and grinding the raw materials of zircon powder, metal aluminum powder, metal silicon micro powder, kaolin and cellulose dry powder in the first composite layer for 15 minutes, then adding a binding agent into the mixed material in three times in the mixing and grinding process, and finally adding floating beads and then mixing and grinding for 6 minutes to obtain a mixed material A;
mixing and grinding the mullite powder, kaolin and cellulose dry powder serving as the raw materials of the second composite layer for 20 minutes, and adding the talcum powder and the bonding agent four times in the mixing and grinding process to obtain a mixture B;
mixing and grinding the weighed raw materials including the corundum powder, the kaolin, the metal aluminum powder, the metal silicon micro powder and the cellulose dry powder for 10 minutes, adding the binding agent into the mixed materials three times in the mixing and grinding process, finally adding the floating beads, mixing and grinding for 5 minutes to obtain a mixed material C,
step three: standing the mixture A, the mixture B and the mixture C for 24 hours, and after forming, respectively putting the mixture A, the mixture B and the mixture C into a mixing mill for mixing and milling for 10 minutes;
step four: pouring the mixture A, the mixture B and the mixture C into a mold in sequence, and pressing the mixture A, the mixture B and the mixture C into a green brick by a press machine to integrally form the mixture A, the mixture B and the mixture C;
step five: and (5) firing, molding and drying the green bricks in a high-temperature tunnel kiln.
And in the fifth step, the drying temperature is 150 ℃.
In the fifth step, the high-temperature firing temperature is 1540 ℃, and the firing time is not less than 20 hours.
Example two:
the invention provides a technical scheme that: the special zirconium, corundum and mullite composite brick for the roller kiln comprises a first composite layer, a second composite layer and a third composite layer; the first composite layer is prepared from 50 parts of zircon powder, 15 parts of dolomite, 5.5 parts of metal aluminum powder, 5.5 parts of metal silicon micro powder, 55 parts of kaolin, 6 parts of floating beads, 5 parts of cellulose dry powder and 6 parts of a binding agent; the second composite layer is prepared from 54 parts of mullite powder, 8 parts of talcum powder, 50 parts of kaolin, 12 parts of a binding agent and 10 parts of dry cellulose powder; the third composite layer is prepared from 38 parts of corundum powder, 65 parts of kaolin, 5 parts of floating beads, 5.5 parts of metal aluminum powder, 5.5 parts of metal silicon micro powder, 5 parts of cellulose dry powder and 6 parts of a binding agent.
Wherein the bonding agent is a mixed solution prepared from aluminum dihydrogen phosphate and diesel oil according to a mass ratio of 8: 2.
The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln comprises the following steps:
wherein, the first step: sequentially weighing raw materials required by the first composite layer, the second composite layer and the third composite layer;
step two: mixing and grinding the raw materials of zircon powder, metal aluminum powder, metal silicon micro powder, kaolin and cellulose dry powder in the first composite layer for 20 minutes, then adding a binding agent into the mixed materials in three times in the mixing and grinding process, and finally adding floating beads and then mixing and grinding for 10 minutes to obtain a mixed material A;
mixing and grinding the mullite powder, kaolin and cellulose dry powder serving as the raw materials of the second composite layer for 25 minutes, and adding the talcum powder and the bonding agent four times in the mixing and grinding process until a mixture B is obtained;
mixing and grinding the weighed raw materials including the corundum powder, the kaolin, the metal aluminum powder, the metal silicon micro powder and the cellulose dry powder for 15 minutes, adding the binding agent into the mixed materials for three times in the mixing and grinding process, finally adding the floating beads, mixing and grinding for 8 minutes to obtain a mixed material C,
step three: standing the mixture A, the mixture B and the mixture C for 30 hours, and respectively putting the mixture A, the mixture B and the mixture C into a mixing and grinding machine for mixing and grinding for 15 minutes after forming;
step four: pouring the mixture A, the mixture B and the mixture C into a mold in sequence, and pressing the mixture A, the mixture B and the mixture C into a green brick by a press machine to integrally form the mixture A, the mixture B and the mixture C;
step five: and (5) firing, molding and drying the green bricks in a high-temperature tunnel kiln.
And in the fifth step, the drying temperature is 220 ℃.
And in the fifth step, the high-temperature firing temperature is 1600 ℃, and the firing time is not less than 20 hours.
When the zircon and the dolomite are fired on the first composite layer, zirconium oxide is generated to improve the thermal shock resistance, mullite in the second composite layer is high-temperature resistant, the strength is high, the thermal conductivity coefficient is small, and corundum of the third composite layer is high, so that the overall hardness of the composite brick can be improved, secondary mullite is formed inside the first composite layer and the third composite layer by adding metal aluminum powder and metal silicon micro powder into the first composite layer and the third composite layer, the thermal shock resistance of the composite brick is further improved, cracking of the composite brick is prevented, the bonding property of the composite brick and mullite powder inside the second composite layer can be improved, the first composite layer, the second composite layer and the third composite layer form a whole, the problem of later-stage layering is avoided, talcum powder is added into the raw material, so that the thermal shock resistance of the composite brick is improved, cellulose dry powder is added into the raw material, so that the shaping performance of the mud material is improved, do benefit to the shaping, add in first composite bed and third composite bed raw materials and float the pearl, because float the hollow spheroid structure of pearl for it fill in the coating and have good thermal-insulated effect, and can alleviate the holistic weight of this composite brick greatly.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The special zirconium, corundum and mullite composite brick for the roller kiln is characterized in that: comprising a first composite layer, a second composite layer and a third composite layer;
the first composite layer is prepared from 40-50 parts of zircon powder, 10-15 parts of dolomite, 3.5-5.5 parts of metal aluminum powder, 3.5-5.5 parts of metal silicon micropowder, 30-55 parts of kaolin, 3-6 parts of floating beads, 1-5 parts of cellulose dry powder and 2-6 parts of a binding agent;
the second composite layer is prepared from 36-54 parts of mullite powder, 5-8 parts of talcum powder, 30-50 parts of kaolin, 8-12 parts of a binding agent and 6-10 parts of cellulose dry powder;
the third composite layer is composed of 30-38 parts of corundum powder, 50-65 parts of kaolin, 2-5 parts of floating beads, 3.5-5.5 parts of metal aluminum powder, 3.5-5.5 parts of metal silicon micro powder, 1-5 parts of cellulose dry powder and 2-6 parts of binding agent.
2. The special zirconium, corundum and mullite composite brick for the roller kiln according to claim 1, is characterized in that: the bonding agent is a mixed solution prepared from aluminum dihydrogen phosphate and diesel oil according to a mass ratio of 8: 2.
3. The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln according to claim 1 is characterized in that: comprises the following steps:
the method comprises the following steps: sequentially weighing raw materials required by the first composite layer, the second composite layer and the third composite layer;
step two: mixing and grinding the raw materials of zircon powder, metal aluminum powder, metal silicon micro powder, kaolin and cellulose dry powder in the first composite layer for 15-20 minutes, then adding a binding agent into the mixed material for three times in the mixing and grinding process, and finally adding floating beads and then mixing and grinding for 6-10 minutes to obtain a mixed material A;
mixing and grinding the mullite powder, kaolin and cellulose dry powder serving as the raw materials of the second composite layer for 20-25 minutes, and adding the talcum powder and the bonding agent four times in the mixing and grinding process until a mixture B is obtained;
mixing and grinding the weighed raw materials including the corundum powder, the kaolin, the metal aluminum powder, the metal silicon micro powder and the cellulose dry powder for 10-15 minutes, adding a binding agent into the mixed materials three times in the mixing and grinding process, finally adding the floating beads, mixing and grinding for 5-8 minutes to obtain a mixed material C,
step three: standing the mixture A, the mixture B and the mixture C for 24-30 hours, and after forming, respectively putting the mixture A, the mixture B and the mixture C into a mixing mill for mixing and milling for 10-15 minutes;
step four: pouring the mixture A, the mixture B and the mixture C into a mold in sequence, and pressing the mixture A, the mixture B and the mixture C into a green brick by a press machine to integrally form the mixture A, the mixture B and the mixture C;
step five: and (5) firing, molding and drying the green bricks in a high-temperature tunnel kiln.
4. The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln according to claim 3 is characterized in that: the drying temperature in the step five is 150-220 ℃.
5. The preparation method of the special zirconium, corundum and mullite composite brick for the roller kiln according to claim 3 is characterized in that: in the fifth step, the high-temperature firing temperature is 1540-1600 ℃, and the firing time is not less than 20 hours.
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| CN202210040661.1A CN114292116A (en) | 2022-01-14 | 2022-01-14 | Special zirconium, corundum and mullite composite brick for roller kiln |
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| CN202210040661.1A CN114292116A (en) | 2022-01-14 | 2022-01-14 | Special zirconium, corundum and mullite composite brick for roller kiln |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230742A (en) * | 2011-06-06 | 2011-11-02 | 傅晓云 | Structure heat-insulation integrated composite brick and preparation method thereof |
| CN105541351A (en) * | 2015-12-21 | 2016-05-04 | 郑州汇特耐火材料有限公司 | Glass melting furnace regenerator top special-use compound spinel zirconium brick and producing method thereof |
| WO2016101327A1 (en) * | 2014-12-23 | 2016-06-30 | 中碳能源(山东)有限公司 | Method for calcining high sulfur petroleum coke and special pot-type calcinator and pot wall tile |
| CN106187248A (en) * | 2016-07-26 | 2016-12-07 | 济源市耐火炉业有限公司 | A kind of MULTILAYER COMPOSITE runner brick and production method thereof |
| CN113800932A (en) * | 2021-11-10 | 2021-12-17 | 济源市耐火炉业有限公司 | Composite checker brick for large coke oven and preparation method thereof |
-
2022
- 2022-01-14 CN CN202210040661.1A patent/CN114292116A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230742A (en) * | 2011-06-06 | 2011-11-02 | 傅晓云 | Structure heat-insulation integrated composite brick and preparation method thereof |
| WO2016101327A1 (en) * | 2014-12-23 | 2016-06-30 | 中碳能源(山东)有限公司 | Method for calcining high sulfur petroleum coke and special pot-type calcinator and pot wall tile |
| CN105541351A (en) * | 2015-12-21 | 2016-05-04 | 郑州汇特耐火材料有限公司 | Glass melting furnace regenerator top special-use compound spinel zirconium brick and producing method thereof |
| CN106187248A (en) * | 2016-07-26 | 2016-12-07 | 济源市耐火炉业有限公司 | A kind of MULTILAYER COMPOSITE runner brick and production method thereof |
| CN113800932A (en) * | 2021-11-10 | 2021-12-17 | 济源市耐火炉业有限公司 | Composite checker brick for large coke oven and preparation method thereof |
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