CN100351463C - Method of raising water filtering performance of asbestos and non-asbestos latex sheet - Google Patents
Method of raising water filtering performance of asbestos and non-asbestos latex sheet Download PDFInfo
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- CN100351463C CN100351463C CNB2005100426768A CN200510042676A CN100351463C CN 100351463 C CN100351463 C CN 100351463C CN B2005100426768 A CNB2005100426768 A CN B2005100426768A CN 200510042676 A CN200510042676 A CN 200510042676A CN 100351463 C CN100351463 C CN 100351463C
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Abstract
The present invention relates to a method for increasing the water filter performance of asbestos and non-asbestos latex paper making plates. In the method, firstly, asbestos or non-asbestos fibers are dispersed in water, and then the dispersed asbestos or non-asbestos fibers are added with stuffing to be pulped; secondly, black carbon is added to be uniformly mixed; thirdly, latex, sulfur and an antioxidant are added to be uniformly mixed; finally, the uniformly mixed raw materials are sent in an approach system in front of a paper machine net, and a cation polyacrylamide retention agent is added before a fan pump or a pressure sieve or a pulp flow box to be moulded on the paper machine and dried. The present invention adds a proper amount of the cation polyacrylamide retention agent in the approach system in front of the paper machine net, which can obviously reduce the pulping degree of pulp, improve the dehydration performance of paper making plates in the paper machine net part, obviously increase the water filter performance in the paper machine net part and lower the pulping degree the upper net raw materials below 50 DEG SR so that the raw materials generate favorable dehydration and moulding effects in the net part.
Description
Technical field
The invention belongs to the crossing domain of rubber industry and paper industry, particularly a kind of method that improves the asbestos latex board water filtering performance.
Background technology
Traditional asbestos rubber sheet mainly be with mixing mould pressing process produce (therefore, its product also is asbestos packing sheet), be that rubber adhesive needs through organic solvent dissolution, mix with asbestos fibre, other compounding ingredient and filler then, make material for making clothes, make sealing plate material through two roller Cheng Zhangji calenderings again.This method is because energy resource consumption is big, it is big to pollute, efficient is low, and is superseded substantially at western developed country, turns on substantially at present that (its product is asbestos latex board with paper process production, be called for short collecting plate), promptly earlier asbestos fibre is disperseed in water, then, making beating adds and fills out, and adds glue and various auxiliary material, at last, through approach system, the moulding of on the paper machine, manufacturing paper with pulp, squeezing, drying cuts, packing, warehouse-in.The sheet material specification that adopts this production technology to produce is versatile and flexible, the sheet material softness, size and stable performance, even, processing and convenient transportation, and this production method need not with an organic solvent, and asbestos are wet-treating, therefore, the production security height, environmental pollution is few, in addition, the production efficiency of this method is higher than mixing die pressing far away.
But, because the water filtering performance of slurry is very poor in the asbestos latex board production process, beating degrees such as used asbestos fibre, filler very high (beating degree at 70 ° more than the SR), therefore, the slurry that has caused these raw materials to form is very difficult in the web part of paper machine dehydration, the paper machine can't normally be moved, can only on step cylinder mould machine, produce, can't on long mesh paper making machine, carry out serialization production.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, providing a kind of can improve the wet end dehydrating effect in collecting plate is produced, and the production that makes collecting plate is from the method for batch process to the raising asbestos latex board water filtering performance of continuity method production conversion.
For achieving the above object, the method that the present invention adopts is: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1-30%, and adding then with respect to the asbestos fibre mass ratio is the filler of 1-90%, changes 50-3000 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the asbestos fibre mass ratio be the latex of 2-40%, the sulphur of 0.1-20% and the age resistor of 0.01-15%, mixes; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 0.02-5.0% before fan pump or pressurized screen or head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Because the present invention's approach system before paper machine net partly adds The addition of C PAM retention agent, can significantly reduce the beating degree of slurry, improve the dewatering of collecting plate at web part of paper machine, the water filtering performance of web part of paper machine is significantly improved, make the beating degree of online raw material reduce to 50 ° below the SR, thereby make raw material produce good dehydration and moulding at wet end.
The specific embodiment
Embodiment 1: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1%, and adding then with respect to the asbestos fibre mass ratio is 90% calcium carbonate, changes 50 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 40% latex, 0.1% sulphur and 0.01% dihyaroquinoline, mixes; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.02% of asbestos fibre before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 2: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 30%, and adding then with respect to the carbon fiber mass ratio is 76% talcum powder, changes 3000 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 32% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 8% latex, 1.3% sulphur and 0.5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3% of carbon fiber before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 3: at first, glass fibre is disperseed to make the mass concentration of the glass fibre after the dispersion in water be 18%, and adding then with respect to the glass fibre mass ratio is 55% attapulgite, changes 2600 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the glass fibre mass ratio is 45% carbon black, mixes; And then add with respect to the glass fibre mass ratio to be 2% latex, 16% sulphur and 1.8% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.5% of glass fibre before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 4: at first, aramid fiber is disperseed to make the mass concentration of the aramid fiber after the dispersion in water be 26%, and adding then with respect to the aramid fiber mass ratio is 32% calcium carbonate, changes 1500 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the aramid fiber mass ratio is 26% carbon black, mixes; And then add with respect to the aramid fiber mass ratio to be 15% latex, 10% sulphur and 5% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 1.5% of aramid fiber before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 5: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 7%, and adding then with respect to the asbestos fibre mass ratio is 12% talcum powder, changes 800 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 10% carbon black, mixes; And then add with respect to the asbestos fibre mass ratio to be 36% latex, 7% sulphur and 12% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 2% before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 6: at first, carbon fiber is disperseed to make the mass concentration of the carbon fiber after the dispersion in water be 13%, and adding then with respect to the carbon fiber mass ratio is 1% attapulgite, changes 450 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the carbon fiber mass ratio is 53% carbon black, mixes; And then add with respect to the carbon fiber mass ratio to be 27% latex, 14% sulphur and 15% anilino-phenyl maleimide, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 3.6% of carbon fiber before head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Embodiment 7: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 25%, and adding then with respect to the asbestos fibre mass ratio is 45% calcium carbonate, changes 120 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 60% carbon black, mixes; And then add with respect to the asbestos fibre mass ratio to be 13% latex, 20% sulphur and 10% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 5.0% of asbestos fibre before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Claims (5)
1, a kind of method that improves the asbestos latex board water filtering performance is characterized in that:
1) at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1-30%, and adding then with respect to the asbestos fibre mass ratio is the filler of 1-90%, changes 50-3000 and change making beating under 450 rev/mins rotating speed;
2) secondly, adding with respect to the asbestos fibre mass ratio is the carbon black of 0-60%, mixes; And then to add with respect to the asbestos fibre mass ratio be the latex of 2-40%, the sulphur of 0.1-20% and the age resistor of 0.01-15%, mixes;
3) the above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 0.02-5.0% before fan pump or pressurized screen or head box, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
2, the method for raising asbestos emulsoid wet board water filtering performance according to claim 1 is characterized in that: said filler is calcium carbonate, talcum powder or attapulgite.
3, the method for raising asbestos emulsoid wet board water filtering performance according to claim 1 is characterized in that: said age resistor is dihyaroquinoline or anilino-phenyl maleimide.
4, the method for raising asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 1%, adding then with respect to the asbestos fibre mass ratio is 90% calcium carbonate, changes 50 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 40% latex, 0.1% sulphur and 0.01% dihyaroquinoline, mixes; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to the quality 0.02% of asbestos fibre before fan pump, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
5, the method for raising asbestos emulsoid wet board water filtering performance according to claim 1, it is characterized in that: at first, asbestos fibre is disperseed to make the mass concentration of the asbestos fibre after the dispersion in water be 7%, adding then with respect to the asbestos fibre mass ratio is 12% talcum powder, changes 800 and change making beating under 450 rev/mins rotating speed; Secondly, adding with respect to the asbestos fibre mass ratio is 10% carbon black, mixes; And then add with respect to the asbestos fibre mass ratio to be 36% latex, 7% sulphur and 12% dihyaroquinoline, to mix; The above raw material that will mix is at last sent into the preceding approach system of paper machine net, adds the cationic polyacrylamide retention agent with respect to quality of fiber 2% before pressurized screen, the moulding of manufacturing paper with pulp on the paper machine, dry getting final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100426768A CN100351463C (en) | 2005-05-18 | 2005-05-18 | Method of raising water filtering performance of asbestos and non-asbestos latex sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100426768A CN100351463C (en) | 2005-05-18 | 2005-05-18 | Method of raising water filtering performance of asbestos and non-asbestos latex sheet |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710129556A Division CN100593603C (en) | 2005-05-18 | 2005-05-18 | Method for increasing water filtering performance of non-asbestos latex sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707021A CN1707021A (en) | 2005-12-14 |
| CN100351463C true CN100351463C (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100426768A Expired - Fee Related CN100351463C (en) | 2005-05-18 | 2005-05-18 | Method of raising water filtering performance of asbestos and non-asbestos latex sheet |
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| CN (1) | CN100351463C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634121B (en) * | 2009-08-25 | 2012-11-07 | 陕西科技大学 | Method for preparing asbestos latex sheets |
| CN102828433B (en) * | 2012-08-23 | 2015-07-22 | 南阳国宇密封发展有限公司 | Method for dewatering double sides of asbestos-free papermaking plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066066A (en) * | 1958-03-27 | 1962-11-27 | Hercules Powder Co Ltd | Mineral fiber products and method of preparing same |
| JPS61296200A (en) * | 1985-06-25 | 1986-12-26 | 松下電工株式会社 | Production of mineral fiberboard |
| CN1059891A (en) * | 1991-06-26 | 1992-04-01 | 陕西省汉中市密封材料厂 | Sepiolite latexes collecting plate and manufacture method |
| CN1064095A (en) * | 1992-03-12 | 1992-09-02 | 北京市制动密封材料厂 | Oil-bentonite asbestos latex board |
| US5679433A (en) * | 1991-10-31 | 1997-10-21 | Kabushiki Kaish Tokiwa Denki | Noncombustible sheet, noncombustible laminated sheet, noncombustible honey comb structural material, noncombustible board, noncombustible molded product, and manufacturing method thereof |
| CN1614143A (en) * | 2004-12-02 | 2005-05-11 | 陕西科技大学 | Preparation for asbestos or non-asbestos emulsoid wet board |
-
2005
- 2005-05-18 CN CNB2005100426768A patent/CN100351463C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066066A (en) * | 1958-03-27 | 1962-11-27 | Hercules Powder Co Ltd | Mineral fiber products and method of preparing same |
| JPS61296200A (en) * | 1985-06-25 | 1986-12-26 | 松下電工株式会社 | Production of mineral fiberboard |
| CN1059891A (en) * | 1991-06-26 | 1992-04-01 | 陕西省汉中市密封材料厂 | Sepiolite latexes collecting plate and manufacture method |
| US5679433A (en) * | 1991-10-31 | 1997-10-21 | Kabushiki Kaish Tokiwa Denki | Noncombustible sheet, noncombustible laminated sheet, noncombustible honey comb structural material, noncombustible board, noncombustible molded product, and manufacturing method thereof |
| CN1064095A (en) * | 1992-03-12 | 1992-09-02 | 北京市制动密封材料厂 | Oil-bentonite asbestos latex board |
| CN1614143A (en) * | 2004-12-02 | 2005-05-11 | 陕西科技大学 | Preparation for asbestos or non-asbestos emulsoid wet board |
Non-Patent Citations (3)
| Title |
|---|
| 浅析石棉水泥板的生产工艺及改进措施 许瑞昌.砖瓦，第8期 2003 * |
| 石棉抄取板 廉成植.非金属矿，第2期 1982 * |
| 阳离子聚丙烯酰胺/膨润土助留助滤体系 刘温霞.造纸化学品，第3期 2000 * |
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| CN1707021A (en) | 2005-12-14 |
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