CN108735403A - High-tension cable paper and its production method with high insulating property and tightness - Google Patents
High-tension cable paper and its production method with high insulating property and tightness Download PDFInfo
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- CN108735403A CN108735403A CN201810513139.4A CN201810513139A CN108735403A CN 108735403 A CN108735403 A CN 108735403A CN 201810513139 A CN201810513139 A CN 201810513139A CN 108735403 A CN108735403 A CN 108735403A
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- slurry
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- tightness
- tension cable
- cable paper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
The invention discloses a kind of high-tension cable paper and its production method with high insulating property and tightness, include the following steps：(1) raw material selects：Use 100% true qualities sulfate needlebush insulating slurry panel for raw material；(2) prepared by slurry：After wooden insulation pulpboard is carried out size degradation, slagging-off, using the free shape grinding method of height, stored after cylinder jordan defibrination process；(3) with slurry：Enter mud pit storage after fibre stuff obtained is stirred evenly；(4) it manufactures paper with pulp：After pulp dilution, it is uniformly mixed through fan pump, again after face stressor layer sieve and bottom pressurized screen removal impurity, slurry is manufactured paper with pulp through face layer head box and the online of bottom head box, and slurry is dehydrated through face layer net and underlying network online, high-tension cable paper is made after composite web composite molding, press dewatering, drying, calender ornamenting, roll paper, rewinding machine bundling.Compared with prior art, high-tension cable paper insulation performance produced by the present invention is good, and tightness and tensile strength are high, and stability is good.
Description
Technical field
The present invention relates to cable paper production fields, more particularly to the high-tension cable paper with high insulating property and tightness and its
Production method.
Background technology
Cable paper is also known as cable insulating paper, and packet does not make in cable outermost layer to protect the insulating layer of conductor wire core to seal
Moisture invades, and does not also allow insulating layer to wreck.Cable paper is the paper with insulating property (properties), grey damage function, is for high-voltage electricity
Power cable, a kind of insulating paper for controlling cable and signal cable.
Cable paper is usually roll web, quantification of 45~175g/m2.Papery is tough and tensile, neat and well spaced, there is higher anti-tensile, folding
And tearing strength, the acidic materials without metal, the grains of sand and energy conduction, dielectric constant is high, and power factor is low.It is subjected to insulating properties liquid
When body processing, paper has good stability.Its kind is divided according to different-thickness or color.It is not float kp softwood pulp
Raw material is not glued after fast beating, not filled, is manufactured paper with pulp on fourdrinier machine, for electric wire or the circle of cable
Between insulate.
110~330KV high-tension cable paper is a kind of voltage levels insulator, is suitable for manufacture 110~300KV transformers
The electromagnetic wire used, high voltage power cable or other electrical apparatus insulation equipment.
Therefore, to meet the above performance indicator, it is necessary to stringent control each parameter of production process, especially to cable paper
Insulation performance and tightness norm controlling it is most important.
Invention content
Goal of the invention：The object of the present invention is to provide a kind of high-tension cable paper and its life with high insulating property and tightness
Production method is starched as raw material with true qualities sulfate needle wooden insulation, meets the requirement of high-tension cable paper insulation performance and tightness.
Technical solution：High-tension cable paper with high insulating property and tightness, raw materials for production are by 100% true qualities sulfate
Needlebush insulating slurry panel forms, and production slurry therewith is made using high free shape grinding method.
The production method of high-tension cable paper with high insulating property and tightness, includes the following steps：
(1) raw material selects：Use 100% true qualities sulfate needlebush insulating slurry panel for raw material；
(2) prepared by slurry：100% true qualities sulfate needlebush insulating slurry panel in step (1) is subjected to hydrabrusher
It is stored after size degradation, HC Cleaner slagging-off, the mashing of cylinder jordan, size degradation water uses deionization softened water, cannot contain in water
There is any impurity metal ion；
(3) with slurry：Enter mud pit by fibre stuff obtained in step (2), after being uniformly mixed to store；
(4) it manufactures paper with pulp：After the wood pulp cellulose pulp dilution prepared in step (3), it is uniformly mixed through fan pump, send respectively
To face stressor layer sieve and bottom pressurized screen removal impurity, manufacture paper with pulp through face layer head box and the online of bottom head box, slurry is through face
Layer dewatering net and bottom dewatering net are surfed the Internet respectively after dehydration forming, then be combined into l Water Paper page through compound wet end, through press section into one
High-tension cable paper is made after step dehydration, drying portion evaporation moisture content, hard calender ornamenting, is rolled into big paper roll, rewinding machine through coiling machine
Bundling is sold at packaging and storage after the reel of certain specification.
In step (1), raw material selects to use 100% true qualities sulfate needlebush insulating slurry panel for raw material, it is ensured that obtained
High-tension cable paper insulation performance is good, while ensureing that the intensity of high-tension cable paper is good, there is higher anti-tensile, folding and tearing strength,
Kp softwood pulp fiber is elongated, and intensity is good, and using insulation slurry, is free of conductive ion.
In step (2), true qualities sulfate needlebush insulating slurry panel uses low density hydraulic pulper pulping, pulping concentration 3%
~5%, pulping water uses deionization softened water, is free of conductive ion in industrial water, it is ensured that the good insulation preformance of cable paper.
Slurry enters HC Cleaner and removes the gred after size degradation, and remove the gred concentration 2%~3%, ensures without the fiber that wadding is poly- in slurry, because of needle
Wood pulp cellulose is long, should not size degradation open, fiber easy tos produce the poly- phenomenon of wadding.Slurry enters stock tank storage after slagging-off, then through cylinder essence
Pulp grinder mashing is handled, and cylinder jordan is small to the cutting action power of fiber compared with double disc refiner, small to the damage of fiber,
The length for being conducive to protect fiber, avoids fibre strength from declining, and is conducive to the intensity for improving high-tension cable paper.
In step (3), by slurry uniform stirring made from step (2), fleeces is prevented to be polymerized to roll into a ball, influence subsequently to manufacture paper with pulp.
It is manufactured paper with pulp respectively using face layer dewatering net and bottom dewatering net in step (4), pulp dilution is to 0.2%~0.3% dense
It after degree, is uniformly mixed through fan pump, after removing impurity by veil pressurized screen and spacer screen pressurized screen, respectively enters veil head box
It is ejected on face layer dewatering net and bottom dewatering net with spacer screen head box and is uniformly dehydrated, be respectively combined at composite web after forming
L Water Paper page is further dehydrated through high vacuum case and suction couch roll, goes out web dryness 20%~22% after suction couch roll, slurry is divided to two
Layer is surfed the Internet, in the case of same production capacity, it is ensured that online concentration is low, and the evenness of double side dewatering, paper is good, and the tightness of paper is high, fiber
Shrinking percentage reduces, and stability is good, and single layer online paper evenness is poor, is dehydrated mainly by gravity single side after approach flow, the two of paper
Face difference is big, and fibre shrinkage is high, and page stability is poor, is easy to shrink.
Page press polish ornamenting is handled using hard calender in step (4), the tightness of high-tension cable paper is further increased, keeps away
Exempt from the rebound of page paper after drying is dry.
Operation principle：Insulation performance and tightness are the important indicators of high-tension cable paper quality quality, and insulation performance reflects
The stress levels of cable paper, good insulation preformance, stress levels are high, especially extremely important for high-tension cable paper；Tightness is
Reflecting the important indicator of cable paper intensity, the intensity that cable paper requires is high, and stability is good, therefore, this items selection true qualities sulfuric acid
Salt needle wooden insulation is starched, and not only the intensity of slurry itself is good, while impurity content is few, good insulation preformance, and pulping is soft using deionization
Change the aquatic important step produced and be also to ensure that final products good insulation preformance, needle-leaved wood fibre is thin and grows, and intensity is good, stability
It gets well, not mutability, the purpose is to reduce the cut-outs of fiber using cylinder jordan for defibrination, keep the intensity of fiber, de- using face layer
The network of rivers and bottom dewatering net are manufactured paper with pulp compound again after dehydration forming respectively, it is therefore an objective to and the surface property for improving paper improves the tightness of paper,
Page is not easy contraction distortion, and stability is good, is handled the press polish ornamenting of paper surface, is further increased using hard calender again after dry
The tightness of paper reduces the rebound of paper.
100% true qualities sulfate needlebush insulating slurry panel, good insulation preformance, needle-leaved wood fibre intensity are used in the present invention
It is good, the strength and stability of cable paper can be improved.Needlebush pulpboard is removed by low density hydraulic pulper size degradation, HC Cleaner
The treatment process such as slag and cylinder jordan defibrination, defibrination are made using high freedom grinding method required for high-tension cable paper production
Slurry, then surfed the Internet respectively dehydration by with slurry, face layer net and underlying network, then through compound wet end composite molding, press section into one
The height of quality requirement is made after the processes such as step dehydration, drying section evaporation moisture content, calender ornamenting, reel machine, rewinding machine and packaging
Voltage cable paper meets electrical apparatus industry needs.
Advantageous effect：Compared with prior art, the present invention has the following advantages：(1) 100% true qualities sulfate needle is used
Wooden insulation pulpboard is cable paper good insulation preformance made from raw material, and intensity is good, and tightness is high, and stability is good；(2) using high free shape
Grinding method ensures the tightness requirement of high-tension cable paper；(3) production of deionization softened water is used to ensure the insulation of high-tension cable paper
Performance requirement.
Description of the drawings
Fig. 1 is high-tension cable paper production technological process of the present invention.
Specific implementation mode
The present embodiment medium and high voltage cable paper material is made of 100% true qualities sulfate needlebush insulating slurry panel, used in production
Slurry is made using high free shape grinding method.
As shown in Figure 1, the present invention includes raw material selection, prepared by slurry, with slurry and cable paper is manufactured paper with pulp four steps.Raw material selects
It is selected as choosing 100% true qualities sulfate needlebush insulating slurry panel；Slurry prepare detailed process be：By true qualities sulfate needlebush
Insulating slurry panel is sent into low density hydraulic pulper, is diluted with water to concentration 3%~5%, using deionized water, is discongested the time
15min, temperature 50 C~60 DEG C are put into after size degradation and unload in kiln basin, HC Cleaner slagging-off are pumped to, into highly concentrated slagging-off
Device slurry concentration 2%~3%, the slurry after slagging-off enter cylinder jordan and carry out defibrination process, using the free shape defibrination side of height
Formula reduces the cut-out of fiber, keeps the length of fiber, by slurry defibrination to 32 ° of SR~35 ° SR of beating degree, fiber wet weight control
In 10g~12g.Process with slurry is that the slurry after milled is entered spare storage pool with slurry.
Cable paper manufacture paper with pulp the specific steps are：Slurry agitation in mud pit is uniform, it prevents slurry sediment wadding poly-, then send
To header box, the pressure and flow of stable slurry, the plain boiled water mixed diluting of the slurry that header box gets off and enriched water slot to 0.3%
After~0.4% concentration, slurry is sent into face layer slurry-stablizing case and bottom slurry-stablizing case through fan pump with stable slurry after mixing
Pressure, the slurry after voltage stabilizing respectively enters face stressor layer sieve and after bottom pressurized screen weeds out impurity, through face layer head box and bottom
Head box surfs the Internet manufacture paper with pulp respectively, surfs the Internet respectively dehydration forming through face layer net and underlying network, and l Water Paper page is multiple in compound wet end after molding
It closes, press section is transferred to after moisture is sloughed in step suction through high vacuum case and suction couch roll, it is compound again using double net formings
Mode, it is therefore an objective to improve page surface performance, improve the tightness of paper, reduce the contraction of paper；The mass dryness fraction for going out suction couch roll paper is
20%~22%, into the page further press dewatering to 42%~45% mass dryness fraction of press section after enter drying section, pass through drying cylinder
Extra moisture content is evaporated, goes out drying portion web dryness and reaches 92%~93%, through eight roll calendar machines to page surface press polish ornamenting
Processing further increases the tightness of paper, reduces the rebound after paper drying；After press polish page through reel machine and rewinding machine rewinding extremely
After setting specification, it is packed in storage after packaged weighing for sale.
According to the above production method, test product 1 and product 2 is made, respectively with corresponding standardized product 3, standardized product 4
Compare, detected through provincial pulping and paper-making key lab, detection data is as shown in Table 1 below.
Test product 1 and standardized product 3 compare from table 1, and in same thickness, 1 tightness of test product is
0.95g/cm3, standardized product required value is 0.85g/cm3, tightness index of the test product tightness higher than national Specification；?
In the case of same thickness, no matter longitudinal test product tensile strength is or lateral, is above the index value of national Specification；?
In the case of same thickness, specified value of the test product frequency breakdown voltage also above standardized product；2 He of test product from table 1
Standardized product 4 compares, essentially identical in thickness, test product tightness, and tensile strength and frequency breakdown voltage are also high
In the index value of national Specification.
It can be seen that according to test product made from the embodiment above, the indexs such as tightness and insulation performance are above
The index value of national Specification, meets the manufacture requirement of high-tension cable paper, and embodiment of the present invention is feasible.
1 high-tension cable paper experimental data of table is compared with national light industry standard (QB/T2692-2005)
Claims (7)
1. a kind of high-tension cable paper with high insulating property and tightness, it is characterised in that：The high-tension cable paper raw materials for production
For 100% true qualities sulfate needlebush insulating slurry panel, production slurry therewith is made using high free shape grinding method.
2. a kind of production method using the high-tension cable paper as described in claim 1 with high insulating property and tightness,
It is characterized in that：Include the following steps：
(1) raw material selects：Use 100% true qualities sulfate needlebush insulating slurry panel for raw material；
(2) prepared by slurry：By in step (1) the 100% true qualities sulfate needlebush insulating slurry panel carry out size degradation, slagging-off,
Defibrination process；
(3) with slurry：Enter mud pit by wood pulp cellulose slurry obtained in step (2), after stirring evenly to store；
(4) it manufactures paper with pulp：After the wood pulp cellulose pulp dilution prepared in step (3), it is uniformly mixed, send respectively to face through fan pump
Stressor layer is sieved with after bottom pressurized screen removal impurity, is manufactured paper with pulp through face layer head box and the online of bottom head box, slurry is surfed the Internet respectively
Dehydration, molding, press section is further dehydrated, dries, height is made after improving tightness, reel machine, rewinding machine bundling in calender ornamenting
Voltage cable paper.
3. the production method of the high-tension cable paper according to claim 2 with high insulating property and tightness, feature exist
In：In step (2), size degradation uses low density hydraulic pulper, pulping concentration 3%~5%, using deionization softened water.
4. the production method of the high-tension cable paper according to claim 3 with high insulating property and tightness, feature exist
In：In step (2), after size degradation slurry using HC Cleaner remove the gred, scummer into slurry concentration 2%~3%.
5. the production method of the high-tension cable paper according to claim 4 with high insulating property and tightness, feature exist
In：Slurry is by cylinder jordan defibrination process after slagging-off, using the free shape grinding method of height, 30 ° of SR~32 ° SR of beating degree,
Slurry is sent into spare storage pool with slurry after defibrination.
6. the production method of the high-tension cable paper according to claim 2 with high insulating property and tightness, feature exist
In：In step (4), surfed the Internet respectively dehydration of manufacturing paper with pulp to slurry using face layer dewatering net and bottom dewatering net, then through compound wet end at
Type is to improve the tightness of paper.
7. the production method of the high-tension cable paper with high insulating property and tightness according to claim 2 or 6, feature
It is：In step (4), uses hard calender to handle to further increase the tightness of paper page surface press polish ornamenting, avoid paper
Rebound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810513139.4A CN108735403A (en) | 2018-05-25 | 2018-05-25 | High-tension cable paper and its production method with high insulating property and tightness |
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|---|---|---|---|
| CN201810513139.4A CN108735403A (en) | 2018-05-25 | 2018-05-25 | High-tension cable paper and its production method with high insulating property and tightness |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878089A (en) * | 2021-03-18 | 2021-06-01 | 山鹰纸业(广东)有限公司 | Preparation method of high-breaking-resistance kraft paper |
| CN113445350A (en) * | 2020-03-24 | 2021-09-28 | 中国制浆造纸研究院有限公司 | High-oil-medium breakdown strength insulating paper for extra-high voltage transformer and manufacturing method thereof |
| CN115852744A (en) * | 2022-12-06 | 2023-03-28 | 潍坊汇胜绝缘技术有限公司 | Preparation method of high-strength high-oil-absorption insulating paperboard |
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| CN113445350A (en) * | 2020-03-24 | 2021-09-28 | 中国制浆造纸研究院有限公司 | High-oil-medium breakdown strength insulating paper for extra-high voltage transformer and manufacturing method thereof |
| CN112878089A (en) * | 2021-03-18 | 2021-06-01 | 山鹰纸业(广东)有限公司 | Preparation method of high-breaking-resistance kraft paper |
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Application publication date: 20181102 |