CN1204022A - Light-weight high-strength chimney corrosion-proof lining concrete pouring material - Google Patents
Light-weight high-strength chimney corrosion-proof lining concrete pouring material Download PDFInfo
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- CN1204022A CN1204022A CN 97112591 CN97112591A CN1204022A CN 1204022 A CN1204022 A CN 1204022A CN 97112591 CN97112591 CN 97112591 CN 97112591 A CN97112591 A CN 97112591A CN 1204022 A CN1204022 A CN 1204022A
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- sieve aperture
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Abstract
The light-weight high-strength chimney corrosion-proof lining concrete pouring material is prepared by using water glass, sodium fluorosilicate, acid-proof cement, sintered acid-proof pottery clay coarse and fine aggregate. According to the requirements of chimney corrosion-proof lining, the sintered acid-proof pottery clay microporous materials with different specific weights are respectively used as coarse and fine aggregates. When preparing the invented pouring material the above-mentioned coarse and fine aggregates are proportioned, pulverized, screened and mixed to obtain the invented product. It can raise service life of chimney, improve construction condition, shorten construction period and reduce chimney cost.
Description
The present invention relates to a kind of light-weight high-strength chimney corrosion-proof lining concrete pouring material, belong to cement products and concrete pouring material technical field.
The chimney lining of thermal power plant should have acid-resistant anti-corrosion erosion performance, can tolerate fume high-temperature again, traditional chimney lining is with acidproof brick and refractory brick, build by laying bricks or stones with acid resistant adhesive mortar and to form, to prevent the internal corrosion of chimney when operation pernicious gas to lining, also require simultaneously to make thermal insulation layer with light heat insulation material, to reduce flue gas heat to the lining internal delivery, cause the big generation thermal stress of armored concrete outer wall and interior wall temperature difference, cause the outer wall concrete to produce the crack, building traditional chimney lining by laying bricks or stones will operate on more than 200 meters high chimney by hand, and working condition is poor, and speed of application is slow, the mortar joint that can not guarantee chimney lining all fills up, these slits form the hidden danger that chimneys are corroded, and used acidproof, refractory brick makes chimney deadweight section lotus big than great, influence service life, and it is used acidproof, refractory brick, acid resistant adhesive mortar, insulation material, anti-corrosion material etc., the material price height, the construction period is long.
The objective of the invention is to reform existing chimney structure, the cancellation thermal insulation layer adopts light-weight high-strength chimney corrosion-proof lining concrete pouring material to replace traditional material, improve the chimney quality, prolong chimney service life, improve execution conditions, shorten construction period, reduce the chimney cost.
The objective of the invention is to realize with following proposal:
1, the formula rate scope of concrete pouring material is as follows:
Waterglass 0.8-1.2 (weight ratio)
Prodan 0.13-0.18 (weight ratio)
Acid-resistant cement 1.36-1.86 (weight ratio)
The acidproof potter's clay fine aggregate of sintering 1.33-1.90 (weight ratio)
The acidproof potter's clay coarse aggregate of sintering 3.06-3.66 (weight ratio)
More than employed raw material require as follows in the prescription:
Waterglass is powdery, technical pure
Acid-resistant cement is an aluminate class cement, and label is 525
#-625
#
Thick, the fine aggregate of the acidproof potter's clay of sintering, acidproof rate 〉=97% is poromerics, proportion can require to select for use the acidproof potter's clay of sintering of different specific weight thick according to chimney lining proportion, fine aggregate between 0.5-1.2.
The grain composition of fine aggregate is as follows:
Sieve aperture 5mm, accumulative total tails over 0.8%
Sieve aperture 2.5mm, accumulative total tails over 1.68%
Sieve aperture 1.2mm, accumulative total tails over 47.48%
Sieve aperture 0.6mm, accumulative total tails over 98.36%
Sieve aperture 0.3mm, accumulative total tails over 99.36%
Sieve aperture 0.15mm, accumulative total tails over 99.76%.
The grain composition of coarse aggregate is as follows:
Sieve aperture 12mm accumulative total sieve does 7.62%
Sieve aperture 8mm accumulative total tails over 46.82%
Sieve aperture 5mm accumulative total tails over 96.82%
The technology that concrete batching waters material feeding is as follows:
Choose the acidproof potter's clay of different specific weight according to the requirement of chimney corrosion-proof lining proportion, the acidproof potter's clay of sintering is pulverized, by thick, the requirement of fine aggregate grain composition, the accumulative total of controlling each regulation sieve aperture sieve tails over, and makes thick, fine aggregate respectively, in the weighing of cooperation ratio, slightly, fine aggregate mixes back oven dry removing moisture content, add the acid-resistant cement of the good proportional quantities of weighing, mix, this is the A component;
In good powdery waterglass of cooperation ratio weighing and powdery prodan, blending mixes together, and this is the B component;
Before the use, A and B component are mixed, be light-weight high-strength chimney corrosion-proof lining concrete pouring material, add the water stirring during use and get final product.
Concrete pouring material of the present invention and tradition be brick builds the make that liner adds thermal insulation layer relatively following advantage and effect:
1, light weight can be made 0.8-1.8 ton/m according to the difference of the sintering potter's clay capacity that uses
3The concrete pouring material goods, than the light 18%-63.3% of sintered article.
2, generally design chimney lining wall compression strength requirement 〉=10MPa, the concrete pouring material of present technique can be made the goods of compression strength 〉=28MPa, exceeds more than 2.8 times than design.
3, generally building the lining capacity by laying bricks or stones with acidproof brick is 2.0t/m
3The time, (m, K), present technique concrete pouring material liner proportion is 1.2t/m to its thermal conductivity factor＞0.7W/
3, (m, k), thermal conductivity factor reduces more than 30% its thermal conductivity factor＜0.5W/.
4, acid resistance, general designing requirement acid resistance 〉=94%, the acid resistance of present technique 〉=97%.
5, general brick liner, manual operations, long in time limit, mortar joint is arranged, and can not guarantee that mortar joint is full substantial, poor sealing, perishable, present technique are concrete cast liner, globality is strong, good airproof performance.
6, chimney more than 200 meters can be realized the inside and outside double sliding form construction of chimney, easy construction, and the duration is short, can guarantee construction quality again.
7, construction costs reduces, in the 210m chimney stack, and fund that can energy-conservation 50%, the duration foreshortened to 3 months from 6 months, and can alleviate the chimney deadweight, but ton surplus only the off-load of lining part reaches 1000 can prolong chimney service life.
Embodiment: getting proportioning according to the ratio range of specification is:
Waterglass 1.0 (weight ratio)
Prodan 0.16 (weight ratio)
Acid-resistant cement 1.68 (weight ratio)
The acidproof potter's clay fine aggregate 1.68 of sintering (weight ratio)
The acidproof potter's clay coarse aggregate 3.33 of sintering (weight ratio)
The acidproof potter's clay of sintering is pulverized, by requirement of fine aggregate grating and gradation of coarse aggregate requirement, the accumulative total screen over-size of sieve aperture sieve is respectively stipulated in control, make coarse-fine aggregate respectively, in the cooperation ratio, weigh, load weighted coarse-fine aggregate is mixed oven dry, add load weighted acid-resistant cement and mix A component into this product, load weighted powdery waterglass and powdery prodan are mixed, be the B component of this product, use preceding A, the B component is blended together, add running water by the amount of the ratio of mud 0.6 and stir to make and add water and water material feeding, construction and maintenance 7-10 days under 10 ℃-30 ℃ weather conditions.
The acidproof potter's clay of sintering is thick, the proportion of fine aggregate between 0.5-1.2, by thick, the concrete pouring material chimney lining that fine aggregate is made different specific weight that add different unit weights, its proportion can be from 1.8T/m
3-0.8T/m
3, its physical property is also slightly different, corresponding rerum natura such as following table:
The project indicator requires proportion/m
2≤ 1.8 1.5 1.2 1.0 0.8SiO
2Content 〉=68 68 67 66 66 suction %≤5 5666 compression strength MPa 〉=36 36 35.6 33 28 acid resistance % 〉=97.6 97.6 97.4 97.2 97 thermal conductivity factors≤0.045 0.045 0.045 0.045 0.045 bending strength N/m 〉=28 26 26 24 22 operating temperatures ℃ 〉=800 800 800 800 800 test methods: compression strength press GB10694-89 mensuration water absorption rate and is pressed among the GB8488 3,4 measure acidproof rate press among the GB8488 3,5 mensuration chemical analyses and presses GB6900-96 (clay, the aluminous refractory chemical analysis method) carries out.
Claims (4)
1, a kind of light-weight high-strength chimney corrosion-proof lining concrete pouring material is that (1) its ester is as follows than scope under it is special: waterglass 0.8-1.2 (weight ratio) prodan 0.13-0.18 (weight ratio) acid-resistant cement 1.36-1.86 (weight ratio) sintering acidproof potter's clay fine aggregate 1.33-1.90 (weight ratio) sintering acidproof potter's clay coarse aggregate 3.06-3.66 (weight ratio).
(2) its preparing process is as follows: the acidproof potter's clay of choosing different specific weight according to the requirement of chimney corrosion-proof lining proportion, the acidproof potter's clay of sintering is pulverized, by thick, the requirement of fine aggregate grain composition, the accumulative total of controlling each regulation sieve aperture sieve tails over, and makes thick, fine aggregate respectively, in the weighing of cooperation ratio, slightly, fine aggregate mixes back oven dry removing moisture content, add the acid-resistant cement of the good proportional quantities of weighing, mix, this is the A component;
In good powdery waterglass of cooperation ratio weighing and powdery prodan, blending mixes together, and this is the B component;
Before the use, A and B component are mixed, be light-weight high-strength chimney corrosion-proof ground concrete pouring material, add the water stirring during use and get final product.
2, light-weight high-strength chimney corrosion-proof lining concrete pouring material according to claim 1 is characterized in that the acidproof potter's clay of described sintering is thick, fine aggregate, acidproof rate 〉=97%, and proportion is between 0.5-1.2.
3, light-weight high-strength chimney corrosion-proof lining concrete pouring material according to claim 1 is characterized in that the grain composition of described fine aggregate is as follows:
Sieve aperture 5mm, accumulative total tails over 0.8%
Sieve aperture 2.5mm, accumulative total tails over 1.68%
Sieve aperture 1.2mm, accumulative total tails over 47.48%
Sieve aperture 0.6mm, accumulative total tails over 98.36%
Sieve aperture 0.3mm, accumulative total tails over 99.36%
Sieve aperture 0.15mm, accumulative total tails over 99.76%.
4, light-weight high-strength chimney corrosion-proof lining concrete pouring material according to claim 1 is characterized in that the particle rafter of described coarse aggregate is joined as follows:
Sieve aperture 12mm accumulative total sieve does 7.62%
Sieve aperture 8mm accumulative total tails over 46.82%
Sieve aperture 5mm accumulative total tails over 96.82%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112591 CN1075427C (en) | 1997-06-27 | 1997-06-27 | Light-weight high-strength chimney corrosion-proof lining concrete pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112591 CN1075427C (en) | 1997-06-27 | 1997-06-27 | Light-weight high-strength chimney corrosion-proof lining concrete pouring material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1204022A true CN1204022A (en) | 1999-01-06 |
| CN1075427C CN1075427C (en) | 2001-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97112591 Expired - Fee Related CN1075427C (en) | 1997-06-27 | 1997-06-27 | Light-weight high-strength chimney corrosion-proof lining concrete pouring material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1075427C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863163A (en) * | 2012-10-10 | 2013-01-09 | 成都纳硕科技有限公司 | Method for preparing acid-proof cement with argil product wastes to serve as main raw material |
| CN104446553A (en) * | 2014-12-03 | 2015-03-25 | 柳州市共和耐火材料有限公司 | Light high-strength self-flow castable |
| CN104478447A (en) * | 2014-12-03 | 2015-04-01 | 柳州市共和耐火材料有限公司 | Manufacturing process of light-weight and high-strength self-flow castable |
| CN104478446A (en) * | 2014-12-03 | 2015-04-01 | 柳州市共和耐火材料有限公司 | Light-weight, acid-resistant and anticorrosive castable |
| CN113372068A (en) * | 2021-07-08 | 2021-09-10 | 华新超可隆新型建材科技(黄石)有限公司 | Cement-based anticorrosive spraying material applied to steel chimney and preparation method thereof |
-
1997
- 1997-06-27 CN CN 97112591 patent/CN1075427C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863163A (en) * | 2012-10-10 | 2013-01-09 | 成都纳硕科技有限公司 | Method for preparing acid-proof cement with argil product wastes to serve as main raw material |
| CN104446553A (en) * | 2014-12-03 | 2015-03-25 | 柳州市共和耐火材料有限公司 | Light high-strength self-flow castable |
| CN104478447A (en) * | 2014-12-03 | 2015-04-01 | 柳州市共和耐火材料有限公司 | Manufacturing process of light-weight and high-strength self-flow castable |
| CN104478446A (en) * | 2014-12-03 | 2015-04-01 | 柳州市共和耐火材料有限公司 | Light-weight, acid-resistant and anticorrosive castable |
| CN113372068A (en) * | 2021-07-08 | 2021-09-10 | 华新超可隆新型建材科技(黄石)有限公司 | Cement-based anticorrosive spraying material applied to steel chimney and preparation method thereof |
| CN113372068B (en) * | 2021-07-08 | 2022-12-02 | 华新超可隆新型建材科技(黄石)有限公司 | Cement-based anticorrosive spraying material applied to steel chimney and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1075427C (en) | 2001-11-28 |
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