CN104119083A - Refractory brick for waste heat power generation tuyere of rotary kiln and preparation method of refractory brick - Google Patents
Refractory brick for waste heat power generation tuyere of rotary kiln and preparation method of refractory brick Download PDFInfo
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- CN104119083A CN104119083A CN201410234092.XA CN201410234092A CN104119083A CN 104119083 A CN104119083 A CN 104119083A CN 201410234092 A CN201410234092 A CN 201410234092A CN 104119083 A CN104119083 A CN 104119083A
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Abstract
The invention discloses a refractory brick for a waste heat power generation tuyere of a rotary kiln and a preparation method of the refractory brick. The refractory brick mainly contains the following components: plastic clay (Guangxi white clay), silicon carbide, nanoscale silicon carbide, corundum, fine alumina powder, mullite and the like. The preparation method comprises the following steps: mixing raw material particles in proportion, putting the raw material particles into a stirrer, then adding the plastic clay (Guangxi white clay) at a constant speed and discharging after the raw material particles are evenly stirred; manually pouring into a mould and putting the mould on a vibrating table; evenly molding after 3 minutes and then putting on a kiln plate in order; putting a kiln of green bricks after being placed in order into a film-forming liquid prepared in advance, soaking for 5-20 minutes, and then pushing into a shuttle kiln for high-temperature sintering for 10-13 hours by carrying out heating at the constant speed from room temperature to 1300-1500 DEG C; then stopping the heating and carrying out heat preservation for 10 hours; discharging the bricks from the kiln and cooling so as to obtain the refractory bricks for the waste heat power generation tuyere of the rotary kiln.
Description
Technical field
The present invention relates to technical field of refractory materials, relate in particular to a kind of rotary kiln cogeneration and get refractory brick and preparation method thereof for air port.
Background technology
The high-temperature flue gas in the past discharging in cement production process, except being utilized on a small quantity, most of by emptying, this is undoubtedly a kind of huge waste and environmental pollution.In recent years, the cogeneration of domestic cement rotary kiln, finds broad application as a kind of extraordinary energy-saving and emission-reduction measure.Cogeneration is got air port Yin Wendu at 500-800 ℃, gets air port dust storm large, and the wear resistance of refractory materials has been proposed to high requirement.And the mould material that tradition is used, at the temperature of 500-800 ℃, can sintering, and antiscour high-wearing feature is not strong, therefore be necessary to develop a kind of novel refractory materials, replaces traditional mould material.
Summary of the invention
The requirement of getting air port high-temperature stable, antiscour high-wearing feature for meeting cement rotary kiln cogeneration, the present invention proposes a kind of Novel fireproof brick, has improved the high temperature resistant of original refractory materials and antiscour high-wear resistance, has extended its work-ing life.
The present invention also provides the preparation method of above-mentioned refractory brick.
1, the present invention proposes a kind of rotary kiln cogeneration and gets air port refractory brick, and it comprises the component of following weight percent:
2, each feed particles is mixed according to the above ratio; put into stirrer; at the uniform velocity add again soft clay (Guangxi white clay); after stirring, emit; through manually pouring in mould, be placed on shaking table; after 3 minutes, be evenly placed on kiln plate code after moulding good; Deng code one kiln adobe; put into pre-configured film forming liquid and soak 5-20min; advance again shuttle kiln high temperature sintering; from normal temperature, at the uniform velocity heat up and burn to 1300-1500 ℃ of shared 10-13 hour, the insulation 10 hours of then ceasing fire, the cooling then finished product packing of kiln discharge.
3, the proportioning of film forming liquid comprises:
4, the preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and prehydrolysis 4-6 hour under 40-60 ℃ of condition, then add methyl silicon resin and acetic acid to stir, obtain film forming liquid.
This programme is than the usefulness of traditional scheme: because nanometer silicon carbide purity is high, particle diameter is little; add nanometer silicon carbide can improve the resistance to elevated temperatures of refractory brick; can strengthen simultaneously with film forming liquid in the cohesive force of silicon; be conducive to form on refractory brick surface the Inorganic Silicon Compound protective layer of one deck densification; greatly improve the high temperature resistant of original refractory brick and anti-wear performance, extended its work-ing life.
Embodiment
Embodiment 1:
1, the present invention proposes a kind of rotary kiln cogeneration and gets air port refractory brick, and it comprises the component of following weight percent:
2, each feed particles is mixed according to the above ratio; put into stirrer; at the uniform velocity add again soft clay (Guangxi white clay); after stirring, emit; through manually pouring in mould, be placed on shaking table; after 3 minutes, be evenly placed on kiln plate code after moulding good; Deng code one kiln adobe; put into pre-configured film forming liquid and soak 15min; advance again shuttle kiln high temperature sintering; from normal temperature, at the uniform velocity heat up to burn to 1350 ℃ and share 12 hours, the insulation 10 hours of then ceasing fire, the cooling then finished product packing of kiln discharge.
3, the proportioning of film forming liquid comprises:
4, the preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and under 60 ℃ of conditions, prehydrolysis is 4 hours, then after adding methyl silicon resin and acetic acid to stir, obtains film forming liquid.
Embodiment 2:
1, the present invention proposes a kind of rotary kiln cogeneration and gets air port refractory brick, and it comprises the component of following weight percent:
2, each feed particles is mixed according to the above ratio; put into stirrer; at the uniform velocity add again soft clay (Guangxi white clay); after stirring, emit; through manually pouring in mould, be placed on shaking table; after 3 minutes, be evenly placed on kiln plate code after moulding good; Deng code one kiln adobe; put into pre-configured film forming liquid and soak 5min; advance again shuttle kiln high temperature sintering; from normal temperature, at the uniform velocity heat up to burn to 1500 ℃ and share 10 hours, the insulation 10 hours of then ceasing fire, the cooling then finished product packing of kiln discharge.
3, the proportioning of film forming liquid comprises:
4, the preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and under 50 ℃ of conditions, prehydrolysis is 4.5 hours, then after adding methyl silicon resin and acetic acid to stir, obtains film forming liquid.
Embodiment 3:
1, the present invention proposes a kind of rotary kiln cogeneration and gets air port refractory brick, and it comprises the component of following weight percent:
2, each feed particles is mixed according to the above ratio; put into stirrer; at the uniform velocity add again soft clay (Guangxi white clay); after stirring, emit; through manually pouring in mould, be placed on shaking table; after 3 minutes, be evenly placed on kiln plate code after moulding good; Deng code one kiln adobe; put into pre-configured film forming liquid and soak 20min; advance again shuttle kiln high temperature sintering; from normal temperature, at the uniform velocity heat up to burn to 1300 ℃ and share 13 hours, the insulation 10 hours of then ceasing fire, the cooling then finished product packing of kiln discharge.
3, the proportioning of film forming liquid comprises:
4, the preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and under 40 ℃ of conditions, prehydrolysis is 6 hours, then after adding methyl silicon resin and acetic acid to stir, obtains film forming liquid.
Embodiment 4:
1, the present invention proposes a kind of rotary kiln cogeneration and gets air port refractory brick, and it comprises the component of following weight percent:
2, each feed particles is mixed according to the above ratio; put into stirrer; at the uniform velocity add again soft clay (Guangxi white clay); after stirring, emit; through manually pouring in mould, be placed on shaking table; after 3 minutes, be evenly placed on kiln plate code after moulding good; Deng code one kiln adobe; put into pre-configured film forming liquid and soak 12min; advance again shuttle kiln high temperature sintering; from normal temperature, at the uniform velocity heat up to burn to 1350 ℃ and share 11 hours, the insulation 10 hours of then ceasing fire, the cooling then finished product packing of kiln discharge.
3, the proportioning of film forming liquid comprises:
4, the preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and under 60 ℃ of conditions, prehydrolysis is 4 hours, then after adding methyl silicon resin and acetic acid to stir, obtains film forming liquid.
Embodiment 1-4 is detected:
This detects data only for above-mentioned detection sample.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. an air port refractory brick is got in rotary kiln cogeneration, it is characterized in that, the weight percent of its raw material comprises:
Soft clay (Guangxi white clay) 4-7%
The above order granularity 200 order 4-7% of silicon carbide purity 95%
Above particle diameter≤100 of silicon carbide purity 98% nanometer 0.01-0.1%
3 millimeters of < particle diameter≤5 millimeter 20-35% of corundum
Alumina fine powder order granularity 200 order 10-20%
Mullite particle diameter≤3 millimeter 12-25%
3 millimeters of < particle diameter≤5 millimeter 15-30% of mullite.
2. the preparation method of refractory brick for air port is got in rotary kiln cogeneration as claimed in claim 1, it is characterized in that, its preparation process is: after each feed particles is mixed in proportion, put into stirrer, at the uniform velocity add again soft clay (Guangxi white clay), after stirring, emit, through manually pouring in mould, be placed on shaking table, after 3 minutes, be evenly placed on kiln plate code after moulding good, Deng code one kiln adobe, put into pre-configured film forming liquid and soak 5-20min, advance again shuttle kiln high temperature sintering, from normal temperature, at the uniform velocity heat up and burn to 1300-1500 ℃ of shared 10-13 hour, then cease fire and be incubated 10 hours, then kiln discharge is cooling obtains described rotary kiln cogeneration and gets the refractory brick in air port,
The proportioning of described film forming liquid comprises:
Tetraethoxy 1-3mol,
Formic acid 0.01-0.1mol,
Water 1-6mol,
Acetone 3-6mol
Acetic acid 3-5mol
The 50%-120% of methyl silicon resin tetraethoxy quality.
3. the preparation method of refractory brick for air port is got in rotary kiln cogeneration as claimed in claim 2, it is characterized in that, the preparation method of described film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, prehydrolysis 4-6 hour under 40-60 ℃ of condition, add again methyl silicon resin and acetic acid to stir, obtain described film forming liquid.
4. air port refractory brick is got in rotary kiln cogeneration as claimed in claim 1, it is characterized in that, the weight percent of its raw material comprises:
Soft clay (Guangxi white clay) 5%
The above order of silicon carbide purity 95% granularity-200 order 4.9%
Above particle diameter≤100 of silicon carbide purity 98% nanometer 0.1%
3 millimeters of < particle diameter≤5 of corundum millimeter 30%
Alumina fine powder order granularity-200 order 15%
Mullite particle diameter≤3 millimeter 20%
3 millimeters of < particle diameter≤5 of mullite millimeter 25%.
5. the preparation method of refractory brick for air port is got in rotary kiln cogeneration as claimed in claim 4, it is characterized in that, after each feed particles is mixed in proportion, put into stirrer, at the uniform velocity add again soft clay (Guangxi white clay), after stirring, emit, through manually pouring in mould, be placed on shaking table, after 3 minutes, be evenly placed on kiln plate code after moulding good, Deng code one kiln adobe, put into pre-configured film forming liquid and soak 15min, advance again shuttle kiln high temperature sintering, from normal temperature, at the uniform velocity heat up to burn to 1350 ℃ and share 12 hours, then cease fire and be incubated 10 hours, the cooling then finished product packing of kiln discharge,
The proportioning of described film forming liquid comprises:
Tetraethoxy 1mol,
Formic acid 0.05mol,
Water 4mol,
Acetone 3mol
Acetic acid 5mol
Methyl silicon resin and 1mol tetraethoxy equal in quality
The preparation method of film forming liquid is: tetraethoxy, water, acetone and formic acid are mixed, and under 60 ℃ of conditions, prehydrolysis is 4 hours, then after adding methyl silicon resin and acetic acid to stir, obtains film forming liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410234092.XA CN104119083B (en) | 2014-05-29 | 2014-05-29 | Air port refractory brick and preparation method thereof is got in a kind of rotary kiln cogeneration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410234092.XA CN104119083B (en) | 2014-05-29 | 2014-05-29 | Air port refractory brick and preparation method thereof is got in a kind of rotary kiln cogeneration |
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| CN104119083A true CN104119083A (en) | 2014-10-29 |
| CN104119083B CN104119083B (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114516757A (en) * | 2020-11-20 | 2022-05-20 | 江苏恒耐炉料集团有限公司 | Anti-skinning nano lining plate component for cement kiln and processing flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335282A (en) * | 2001-08-30 | 2002-02-13 | 营口青花耐火材料股份有限公司 | Melt particle-recombined magnesia-chrome brick and its production process |
| CN1793052A (en) * | 2005-12-23 | 2006-06-28 | 郑州豫兴耐火材料有限公司 | Thermal-shock resistant fireproof brick and production process thereof |
| CN1803720A (en) * | 2006-01-25 | 2006-07-19 | 武汉威林炉衬材料有限责任公司 | Method for preparing light heat-insulating fire resistant brick |
| CN101508589A (en) * | 2009-03-11 | 2009-08-19 | 深圳市恒拓科技有限公司 | Composition for producing furnace liner and method for producing furnace liner |
| CN102408244A (en) * | 2011-08-24 | 2012-04-11 | 江苏苏嘉集团新材料有限公司 | Processing method of carbon-containing refractory product |
-
2014
- 2014-05-29 CN CN201410234092.XA patent/CN104119083B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335282A (en) * | 2001-08-30 | 2002-02-13 | 营口青花耐火材料股份有限公司 | Melt particle-recombined magnesia-chrome brick and its production process |
| CN1793052A (en) * | 2005-12-23 | 2006-06-28 | 郑州豫兴耐火材料有限公司 | Thermal-shock resistant fireproof brick and production process thereof |
| CN1803720A (en) * | 2006-01-25 | 2006-07-19 | 武汉威林炉衬材料有限责任公司 | Method for preparing light heat-insulating fire resistant brick |
| CN101508589A (en) * | 2009-03-11 | 2009-08-19 | 深圳市恒拓科技有限公司 | Composition for producing furnace liner and method for producing furnace liner |
| CN102408244A (en) * | 2011-08-24 | 2012-04-11 | 江苏苏嘉集团新材料有限公司 | Processing method of carbon-containing refractory product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114516757A (en) * | 2020-11-20 | 2022-05-20 | 江苏恒耐炉料集团有限公司 | Anti-skinning nano lining plate component for cement kiln and processing flow |
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| CN104119083B (en) | 2016-03-02 |
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Address after: 313100 Meishan Town Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang ally Refractories Co.,Ltd. Address before: 313000 Meishan Town Industrial Park (Xin'an Village), Changxing County, Huzhou City, Zhejiang Province Patentee before: CHANGXING MENGYOU REFRACTORIES Co.,Ltd. |