CN101811883A - Acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and preparation method thereof - Google Patents
Acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and preparation method thereof Download PDFInfo
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- CN101811883A CN101811883A CN 201010164857 CN201010164857A CN101811883A CN 101811883 A CN101811883 A CN 101811883A CN 201010164857 CN201010164857 CN 201010164857 CN 201010164857 A CN201010164857 A CN 201010164857A CN 101811883 A CN101811883 A CN 101811883A
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Abstract
The invention discloses an acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and a preparation method thereof. The refractory material comprises the following components in percentage by weight: 30 to 70 percent of active sludge, 5 to 50 percent of ceramic particles, and 10 to 32 percent of coal ash. The preparation method of the heat-insulation refractory material comprises the following steps of: uniformly mixing the active sludge, the ceramic particles and the coal ash with water based on the proportion; extruding and molding the uniformly mixed materials by using a vacuum extrusion moulding machine; drying the molded material at the normal temperature for 1 to 3 days; and roasting the molded material for 5 to 6 hours at the temperature of between 1,000 and 1,200 DEG C. The acid-proof heat-insulation refractory material has the advantages of low cost, scientific preparation process, small pollution, high product performance, corrosion resistance, strong acid resistance and high temperature resistance, and is applicable to linings of chimneys and flues of heat-engine plants, steel mills, coking plants and petrochemical industry.
Description
Technical field
The present invention relates to fire resisting material field, be specifically related to a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation and preparation method thereof.
Background technology
Along with improving constantly of China's industrialization degree, increasing thermal power plant, steel mill, coking, petroleum chemical plant have been rendered to sight in the selection of chimney.Because the long-term exposure of chimney own is outdoor, and have not clean-burning sulfide, carbide in the flue gas, chimney is produced corrosion thereby be easy to form acidic substance.Given this, how to select a kind of material that preservative activity can be arranged high temperature resistant, again, the life-span of improving chimney is a technical barrier must facing now.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation.
Another object of the present invention is to provide the preparation method of above-mentioned materials.
Technical scheme: a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation provided by the invention comprises following components in weight percentage: 30～70% active sludge, 5～50% ceramic particle, 10～32% flyash.
Wherein, described active sludge is Taihu Lake mud, domestic sludge or industrial sludge.
Wherein, described ceramic particle is by waste ceramic goods process surperficial impurity elimination, pickling, pulverizes, sieves and get.
Wherein, described flyash is wet row of power plant or dry discharge fly ash, and its carbon content is less than 18%.
Prepare the method for above-mentioned acid-proof heat-insulation refractory material, may further comprise the steps:
(1) water mixes active sludge, ceramic particle and the flyash of formula ratio;
(2) material behind the mixing is through pressing machine compression moulding;
(3) the formed material Air drying is after 1～3 day, 1000-1200 ℃ of following roasting 5～6 hours.
Wherein, the weight ratio of water and raw material gross weight is 6～8: 100 in the step (1).
The ceramic particle that the present invention adopts is to take from the depleted ceramic.Old shabby ceramic products or ceramic enterprise calcine underproof ceramic products and all are applicable to the present invention.
The active sludge that the present invention adopts can be a Taihu Lake mud, also can be other domestic sludges or industrial sludge.At present, Taihu Lake is seriously polluted, and very most of reason is that blue-green algae is haunting in the Taihu Lake, and the mud in the Taihu Lake is directly to provide nutrient to blue-green algae.Therefore, adopt Taihu Lake mud on the one hand the present invention is accomplished, can also pollute, protect environment to contribute to administering Taihu Lake on the other hand.
The flue gas of the flyash that the present invention adopts after from coal burning tracked down and arrested the powder that gets off.Flyash was exactly a kind of residue originally, did not have utility value, but also can be used as raw material of the present invention through selecting.
Beneficial effect: three kinds of raw materials that the present invention adopts are life, industrial waste product, turn waste into wealth, and cost is low; The preparation process science is polluted few; Good product performance, protection against corrosion, anti-strong acid, high temperature resistant are applicable to the chimney and the flue lining of thermal power plant, steel mill, coking, petroleum chemical industry.
Embodiment
Embodiment 1:
(unit is a weight percentage to get 30% active sludge, 50% ceramic particle and 20% flyash down together),, water mixes above-mentioned raw materials, the ratio of water and raw material gross weight is 8: 100, material behind the mixing is through pressing machine compression moulding, at Air drying after 3 days, 1200 ℃ of following roastings 6 hours.
Embodiment 2:
Get 40% active sludge, 38% ceramic particle and 22% flyash, water mixes above-mentioned raw materials, and the ratio of water and raw material gross weight is 7.5: 100, and the material behind the mixing is through pressing machine compression moulding, at Air drying after 3 days, 1150 ℃ of following roastings 6 hours.
Embodiment 3:
Get 50% active sludge, 25% ceramic particle and 25% flyash, water mixes above-mentioned raw materials, and the ratio of water and raw material gross weight is 7: 100, and the material behind the mixing is through pressing machine compression moulding, at Air drying after 2 days, 1100 ℃ of following roastings 6 hours.
Embodiment 4:
Get 60% active sludge, 13% ceramic particle and 27% flyash, water mixes above-mentioned raw materials, and the ratio of water and raw material gross weight is 6.5: 100, and the material behind the mixing is through pressing machine compression moulding, at Air drying after 2 days, 1100 ℃ of following roastings 5 hours.
Embodiment 5:
Get 70% active sludge, 5% ceramic particle and 25% flyash, water mixes above-mentioned raw materials, and the ratio of water and raw material gross weight is 6: 100, and the material behind the mixing is through pressing machine compression moulding, at Air drying after 2 days, 1100 ℃ of following roastings 5 hours.
Embodiment 6:
The performance perameter of acid-proof heat-insulation refractory material of the present invention
Table 1
| Volume density (g/cm 3) | ??0.8～2.1 |
| Cold crushing strength (MPa) | ??8～20 |
| Thermal conductivity (W/m.k) | ??≤0.90 |
| Refractoriness (℃) | ??≤1350℃ |
Claims (6)
1. an acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation is characterized in that it comprises following components in weight percentage: 30～70% active sludge, 5～50% ceramic particle, 10～32% flyash.
2. a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation according to claim 1 is characterized in that described active sludge is Taihu Lake mud, domestic sludge or industrial sludge.
3. a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation according to claim 1 is characterized in that described ceramic particle is by waste ceramic goods process surperficial impurity elimination, pickling, pulverizes, sieves and get.
4. a kind of acid-proof heat-insulation refractory material that utilizes mud, waste ceramic preparation according to claim 1 is characterized in that described flyash is wet row of power plant or dry discharge fly ash, and its carbon content is less than 18%.
5. prepare the described a kind of method of utilizing the acid-proof heat-insulation refractory material of mud, waste ceramic preparation of claim 1, it is characterized in that it may further comprise the steps:
(1) water mixes active sludge, ceramic particle and the flyash of formula ratio;
(2) material behind the mixing is through pressing machine compression moulding;
(3) the formed material Air drying is after 1～3 day, 1000-1200 ℃ of following roasting 5～6 hours.
6. a kind of method of utilizing the acid-proof heat-insulation refractory material of mud, waste ceramic preparation of preparation according to claim 5 is characterized in that in the step (1), the weight ratio of water and raw material gross weight is 6～8: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010164857 CN101811883A (en) | 2010-05-07 | 2010-05-07 | Acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010164857 CN101811883A (en) | 2010-05-07 | 2010-05-07 | Acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101811883A true CN101811883A (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010164857 Pending CN101811883A (en) | 2010-05-07 | 2010-05-07 | Acid-proof heat-insulation refractory material prepared by using sludge and waste ceramics and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973770A (en) * | 2010-09-14 | 2011-02-16 | 浙江锦诚耐火材料有限公司 | Formula of light fire-resistant alkali-resistant pouring material |
| CN102584171A (en) * | 2012-03-12 | 2012-07-18 | 宜兴市浦发陶瓷厂 | Decorative material and preparation method thereof |
| CN105859313A (en) * | 2016-04-21 | 2016-08-17 | 江苏嘉耐高温材料有限公司 | High-infrared-emissivity paint preparation method and application thereof |
| CN105906354A (en) * | 2016-04-21 | 2016-08-31 | 江苏嘉耐高温材料有限公司 | Preparation method and application of light-weight high-infrared-emitting-rate coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372414A (en) * | 2008-09-19 | 2009-02-25 | 武汉理工大学 | Method for preparing environment-protective ceramic plain brick using lago sludge |
-
2010
- 2010-05-07 CN CN 201010164857 patent/CN101811883A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372414A (en) * | 2008-09-19 | 2009-02-25 | 武汉理工大学 | Method for preparing environment-protective ceramic plain brick using lago sludge |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973770A (en) * | 2010-09-14 | 2011-02-16 | 浙江锦诚耐火材料有限公司 | Formula of light fire-resistant alkali-resistant pouring material |
| CN102584171A (en) * | 2012-03-12 | 2012-07-18 | 宜兴市浦发陶瓷厂 | Decorative material and preparation method thereof |
| CN105859313A (en) * | 2016-04-21 | 2016-08-17 | 江苏嘉耐高温材料有限公司 | High-infrared-emissivity paint preparation method and application thereof |
| CN105906354A (en) * | 2016-04-21 | 2016-08-31 | 江苏嘉耐高温材料有限公司 | Preparation method and application of light-weight high-infrared-emitting-rate coating |
| CN105859313B (en) * | 2016-04-21 | 2019-03-22 | 江苏嘉耐高温材料有限公司 | A kind of high IR emissivity preparation method for coating and its application |
| CN105906354B (en) * | 2016-04-21 | 2019-08-16 | 江苏嘉耐高温材料有限公司 | A kind of lightweight high IR emissivity preparation method for coating and its application |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100825 |