CN202744879U - Reverse forming net device for high-speed reverse net multi-roll drying special papermaking machine - Google Patents
Reverse forming net device for high-speed reverse net multi-roll drying special papermaking machine Download PDFInfo
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- CN202744879U CN202744879U CN 201220275458 CN201220275458U CN202744879U CN 202744879 U CN202744879 U CN 202744879U CN 201220275458 CN201220275458 CN 201220275458 CN 201220275458 U CN201220275458 U CN 201220275458U CN 202744879 U CN202744879 U CN 202744879U
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Abstract
The utility model relates to a reverse forming net device for a high-speed reverse net multi-roll drying special papermaking machine, which is applicable to a papermaking machine for tissue paper and is particularly applicable to a papermaking machine specially used for making transfer printing body paper and decorative base paper. The reverse forming net device for the high-speed reverse net multi-roll drying special papermaking machine adopts a reverse operating mode; and the forming net device 210 comprises a forming plate 213, a water scraper 214, a water suction box 215 and a forming net 219. According to the reverse forming net device, mainly most of hardwood pulp with a better printability is made at the front side of a paper sheet 246 and softwood pulp is made at the reverse side of the paper sheet 246.
Description
Technical field
The utility model relates to a kind of papermaking equipment field.Especially a kind of manufacturing tissue machine.Particularly make the reverse forming net device of the high speed dry extraordinary paper machine of contrary net multiple roll of transfer printing body paper and decorating base paper.
Background technology
The transfer printing body paper is a kind of industrial paper, is mainly used in the transfering printing process of textiles.First various decorative patterns, pattern, color are printed on the transfer printing body paper; Then will be printed on transfer printing body paper and the fabric close contact of decorative pattern, pattern, in the situation that control uniform temperature, pressure and the time, dyestuff is transferred on the fabric from calico paper, then enters fabric through diffusion, thereby reaches painted purpose.
In the transfer printing process, at first to be printed on pattern, decorative pattern on the transfer printing body paper, and then be transferred to cloth surface by the transfer printing body paper, especially in the transfer process of back, pattern will keep the characteristics such as flower shape is true to nature, decorative pattern is careful, clear layer, third dimension are strong, and this requirement to transfer printing body paper performance is higher.
Decorating base paper is widely used in the decoration field.Such as desk, furniture etc.The patterns such as wood grain that need to print at the decorating base paper surface label in the application, the quality of decorating base paper and printing performance are determining the patterns such as the wood grain degree true to nature of furniture.
In sum, transfer printing body paper and decorating base paper require that not only the quality of finished paper requirement is high, and printing and transfer performance also require high.Its physical property is specifically:
(1) require page to have enough intensity.Paper surface does not fall hair, dry linting not.In printing and transfer process, can there be certain tension force in paper, and speed is faster, and tension force is larger, therefore requires paper to have enough intensity.
(2) exigent smoothness.Only have smoothness high, printing effect is good, and especially transfer printing body paper and decorating base paper because if transfer printing body paper smoothness is poor, make the dye sublimation rate on the paper inconsistent.Therefore, transfer on the cloth and also can thicken.
According to above requirement, production transfer printing body paper and decorating base paper form according to certain proportioning in requisition for softwood pulp and hardwood pulp, and require most hardwood pulps on the top layer, overwhelming majority softwood pulp is at bottom, so just can print the better effects if when shifting, smoothness reached more than 1000 seconds.(production and the application [J] of list of references Fang Hanzuo regeneration transfer printing body paper. Shanghai papermaking, 1999 (3): 13)
At present, all adopt general paper machine at manufacturing transfer printing body paper, be difficult to reach requirement.Existing technology, production efficiency is low, and manufacturing cost is corresponding too high, and product quality is difficult to reach market demands.
Figure one is existing paper machine schematic diagram, and existing paper machine comprises: frame 104, forming section 101, press section 102, drying section 103 and reeling end 109.Wherein forming section 101 comprises head box 111, breast roll 112, suction couch roll 117, forming board 113, Wiper blade 114, suction box 115 and forming net 119.Described forming net 119 is by breast roll 112, the member supporting such as suction couch roll 117 and deflector roll, the centre is provided with forming board 113, Wiper blade 114 and suction box 115.Described head box 111 is located at breast roll 112 near-ends.Drying section 103 comprises drying cylinder 147 and lower drying cylinder 107, and lower drying cylinder 107 is located between drying cylinder 147 and the reeling end 109, also is provided with soft calendaring 105 between lower drying cylinder 107 and the reeling end 109.
In paper-making process, forming section 101 is processes of drainage and formation, and by a large amount of research and practices, we find the more important thing is the process of a precipitation.So in forming process, most softwood pulps are deposited in the bottom of paper web 126, otherwise most hardwood pulps are on the top layer of paper web 126.The paper that adopts existing general paper machine to manufacture be most softwood pulps in the front, and the reasonable most hardwood pulps of printing adaptability are at reverse side.
Although it is not very large that the tissue papers such as transfer printing body paper and decorating base paper require the smoothness of reverse side and glossiness, the smoothness of reverse side is crossed to hang down batching middle meeting directly affects positive smoothness.So after paper web 126 goes out drying cylinder 147, be provided with lower drying cylinder 107 and soft calendaring 105 facilities in the existing technology.Need to consume a large amount of steam and electric energy.Especially soft calendaring 105, need steam and two drive station of 0.4Mpa, need two driven by motor.
In sum, the one-tenth paper 106 that existing paper machine manufactures be softwood pulp in the front, and the reasonable hardwood pulp of printing adaptability is becoming paper 106 reverse side.Thereby have influence on printing effect and the transfer effect of printing ink, and what is more, can lower the gloss of printing, make printing ink seem, the bright-coloured not printing defects that waits of color.Lower drying cylinder 107 and soft calendaring 105 facilities, energy resource consumption is large, and it is not enough that carbon monoxide and CO2 emissions are large etc.Therefore, solve production efficiency low, reduce energy resource consumption, advocate the production of cleaning low-carbon (LC), improve the quality of products, become the actual needs of production.
Summary of the invention
For the above-mentioned deficiency on the prior art, the technical problems to be solved in the utility model provides the reverse forming net device of a kind of manufacturing tissue machine.Especially make the reverse forming net device of the Chinese assistant dry extraordinary paper machine of at a high speed contrary net multiple roll of transfer printing body paper and decorating base paper.
Shown in figure two, the utility model solves the technical scheme that its technical problem adopts and is: the dry extraordinary paper machine of the at a high speed contrary net multiple roll of Chinese assistant comprises frame 204, forming section 201, press section 202, drying section 203 and reeling end 209.
Described reverse forming net device comprises head box 211, breast roll 212, suction couch roll 217 and forming net device 210.Described forming net device is located between described head box and the press section, and described head box 211 is arranged on described breast roll 212 near-ends, and is arranged between described breast roll 212 and the described drying section.Described forming net device 210 comprises forming board 213, Wiper blade 214, suction box 215 and forming net 219.Described forming net 219 is by comprising breast roll 212, and suction couch roll 217 and deflector roll are in interior a plurality of member supporting, and the centre is provided with forming board 213, Wiper blade 214 and suction box 215.The rotation direction of described forming net device 210 is opposite with the complete machine rotation direction, so be referred to as reverse forming net device.
Described press section 202 adopts the pressing device 220 of three rollers, two nips, the pressing device 220 of described three rollers, two nips comprises pressure roller 223, vacuum furnace 221, plain-barreled roll 222, pressure roller 223 is exerted pressure to vacuum furnace 221 and plain-barreled roll 222 simultaneously, wherein first is vacuum furnace 221, and second is plain-barreled roll 222, and pressure roller 223 doubles as later roller effect.
Described drying section 203 comprises half wet felt device 230, drying cylinder 247 and multiple roll drying device 240.
Described half wet felt device 230 comprises, moisture content is the glazing felt 238 of 40% (percentage by weight), the wash mill 231 that drips, and suction box 235, glazing felt 238 dry baby dryers 237 and vacuum are inhaled moving device 234.Described moisture content is that the glazing felt 238 of 40% (percentage by weight) is provided in a side of that drying section 203 is used for carrying and carrying paper web 226, and the wash mill 231 that drips is the devices that wash glazing felt 238.Described suction box 235 has two groups, every group of at least one suction box, first group is woollen blanket front suction box, second group is woollen blanket reverse side suction box, described woollen blanket front suction box 235 is devices that the residue on the glazing felt 238 and moisture content are siphoned away, described woollen blanket reverse side suction box 235 is the water absorbers for glazing felt 238 reverse side, mainly is that the moisture content that also not have to evaporate during with dry baby dryer 237 heating of glazing felt siphons away.
Described drying cylinder 247 is by the mode of heating paper web 226 to be dried, and makes paper web 226 dryings become the device of paper 206.
Described multiple roll drying device 240 is included in around the drying cylinder 247 according to different angles and is provided with a plurality of dryer rolls and the pressure exerting arrangement of dryer roll separately.Described pressure exerting arrangement is according to need of production, thus the device that dryer roll is separately exerted pressure drying cylinder 247 is exerted pressure.
Also be provided with printing performance at drying section 203 and adapt to agent bringing device 208, it is that page 249 is added the device that printing performance adapts to agent 299 that described printing performance adapts to agent bringing device 208.Between drying cylinder 247 and reeling end 209, also be provided with paper defects online detection and control system 290.
1. described reverse forming net device 210, its rotation direction is opposite with the complete machine rotation direction.Paper machine divides right hand machine and right hand machine according to rotation direction, and figure two is the utility model right hand machine application examples.Shown in figure two: paper pulp 216 has formed paper web 226 at reverse forming net device 210, through pressing device 220 inhale by vacuum move roller 234 inhale move after, it is dry that glazing felt 238 is transported to drying cylinder 247 places.By just so anti-, make most hardwood pulps in the front that becomes paper 206, most softwood pulps are at the back side that becomes paper 206.
2. press section 202 adopts the pressing device 220 of three rollers, two nips.The pressing device 220 of described three rollers, two nips is characterized in that first is vacuum furnace 221, and second is plain-barreled roll squeezing 222.Vacuum furnace 221 is known well than the dehydrating effect of plain-barreled roll 222.But the suction press eye portion is arranged and do not have the dehydration of suction press eye portion inconsistent, cause becoming the impact of paper 206.The application of the pressing device 220 by three rollers, two nips reaches paper web moisture content in full accord, has improved simultaneously tightness and the mass dryness fraction of paper web 226.The mass dryness fraction of press section 202 every raisings 1% can reduce the burden of drying cylinder 247 at least 4%, that is to say the mass dryness fraction of press section 202 every raisings 1%, and drying section 203 can improve at least 4% optimum dry speed of a motor vehicle, economizes on coal simultaneously just more than 4%.Thereby improved production efficiency, and saved the energy, reduced the discharge capacity of carbon monoxide and carbon dioxide.
3. be provided with half wet felt device 230 and multiple roll drying device 240 at drying section 203.Described half wet felt device 230 is with drying section 203 existing glazing felts 238, go out two road suction boxs 235 through the dry baby dryer 237 of drip wash mill 231 and glazing felt, enter the glazing felt 238 of moisture control about 40% (percentage by weight) before the carrying roller 241.The dry baby dryer 237 of described glazing felt adopts the condensed water of the flash steam of large drying cylinder 247 and discharge as the temperature rise material, and drive station not.
4. described multiple roll drying device 240, according to different angles cloud cloth around drying cylinder 247, and the device of drying cylinder 247 being exerted pressure by pressure exerting arrangement separately.The moisture content of paper web 226 is about 68% under normal circumstances, the application of the pressing device 220 of three rollers, two nips, the moisture content of paper web 226 is about 64%, because the moisture content of glazing felt 238 is about 40% (percentage by weight), so under the linear pressure of a carrying roller 241, the moisture content of paper web 226 infiltrates in the glazing felt 238 and takes away, and can not overflow from the line pressure district of a carrying roller 241.So any position that a carrying roller 241 can be around drying cylinder 247 is proven, its vertical direction eccentric angle with drying cylinder 247 centers is 10 °-80 °, deflection drying cylinder 247 rotation opposite directions one side, and preferably 45 °-65 °, the best is 55 °.One carrying roller 241 is exerted pressure to paper web 226 in advance, and the angle of paper web 226 drying cylinder that coats 247 improves about 60 °, the effective drying surface that can improve drying cylinder 247 approximately about 26%.Can improve the optimum dry speed of a motor vehicle more than 26%.Reduce on year-on-year basis ton paper consumption coal more than at least 26%.Thereby improved production efficiency, saved the energy, reduced the discharge capacity of carbon monoxide and carbon dioxide.
5. before paper web 226 enters a carrying roller 241, moisture content is still very high, water content is about 68%, so the water evaporates amount of paper web 226 is large when a carrying roller 241, after paper web 226 goes out a carrying roller 241, a large amount of steam that drying cylinder 247 and paper web are 226 has stronger impulsive force to paper web 226, this moment, paper web 226 descended greatly with the degree of pasting of drying cylinder 247, if when a carrying roller 241, paper web 226 is made as 100 with the degree of pasting of drying cylinder 247, and when entering two carrying rollers 242, its degree of pasting is approximately about 70, under the linear pressure of two carrying rollers 242, make paper web 226 and the degree of pasting of drying cylinder 247 bring up to again 100.Because paper web 226 is when a carrying roller 241, its moisture content is than glazing felt 238 height, and the moisture content of paper web 226 penetrates in the glazing felt 238.Before entering three carrying rollers 243, paper web 226 drops to again about 70 with the degree of pasting of drying cylinder 247 equally, and under the linear pressure of three carrying rollers 243, paper web 226 brings up to 100 again with the degree of pasting of drying cylinder 247.The drying effect of Effective Raise drying cylinder 247.
6. light carrying roller 244 materials are rubber rolls, and it does not coat woollen blanket, under the linear pressure of the 700N/cm of light carrying roller 244, effectively eliminate the felt mark on paper web 226 reverse side, more effectively improve smoothness and the glossiness in paper web 226 fronts.Reach the same texts of lower drying cylinder 107, therefore need not to re-use lower drying cylinder 107.Under the linear pressure of light carrying roller 244, again improve degree of pasting to 100, improved the drying capacity of drying cylinder.The Effective Raise speed of a motor vehicle.
7. optical press roll 245 does not coat woollen blanket, when paper web 226 enters optical press roll 245, and its moisture content approximately about 11%, finalized the design almost this moment, so be called page 246.The surface-brightening of drying cylinder 247 such as mirror, under the linear pressure of optical press roll 245, when page 246 goes out optical press roll 245, the moisture content of page 246 approximately about 8%, so the smoothness of page 246, glossiness, tightness improve greatly, the fibr tissue of page 246 is tightr, tear-resistant degree etc. all improve a lot, the physical property of page 246 has the raising of matter, has surpassed the effect of soft calendaring 105, thereby existing follow-up soft calendaring 105 devices need not to re-use equally.Again reach the effect of energy-saving and emission-reduction.
The beneficial effects of the utility model are:
1, after paper web 226 passes through reverse forming net device 210 and reversed operation pressing device 220, the effect that obtains is just anti-, it is upper dry that the hardwood pulp face of paper web 226 is attached to 247 of drying cylinders, the paper that reverse forming net device 210 paper machines manufacture be most hardwood pulps in paper 206 fronts, and most softwood pulp is in reverse side of paper.The printing adaptability of hardwood pulp can be good.The overwhelming majority is that hardwood pulp paper web 226 faces become positive one-tenth paper 206, has improved printing effect and transfer effect.
2, the application of the pressing device 220 of three rollers, two nips can Effective Raise becomes the quality of paper 206, has improved simultaneously tightness and the mass dryness fraction of paper web 226.The pressing device 220 of three rollers, two nips is compared with plain press, can improve 5% mass dryness fraction at press section 202, can reduce the burden of drying cylinder 247 at least 20%, and drying section 203 can improve at least 20% optimum dry speed of a motor vehicle, economizes on coal more than at least 20% simultaneously.
3, the application of half wet felt device 230 and multiple roll drying device 240 can be saved lower drying cylinder 107 and soft calendaring 105, and only soft calendaring 105 is 2 drive station, by 2 driven by motor, adds the steam of 0.4Mpa air pressure, and steam accounts for about 30% of complete machine consumption.Two motors account for total output load 20%.Drying cylinder 247 effective areas increase by 26%, in theory, can improve the speed of a motor vehicle more than 26%, in fact, by the effect of half wet felt device 230, can realize fast dewatering, just can improve the speed of a motor vehicle 10%, the application of a plurality of carrying rollers improves the degree of pasting of paper web 226 and drying cylinder 247, thereby improves the drying effect of drying cylinder 247.Can improve the speed of a motor vehicle 15%.The utility model only can be brought up on year-on-year basis 1.6 times of speed of a motor vehicle in this part.Steam can save 39% and corresponding consumption coal, water consumption and power consumption on year-on-year basis.Living load can be saved 18% power consumption, and the speed of a motor vehicle is brought up to 1.6 times on year-on-year basis, ton paper integrated power-saving 55% on year-on-year basis herein, and water saving 29% economizes on coal 39%.Improve into smoothness and the glossiness of paper 206, quantitatively tightness.By the detection one-tenth paper 206 copied of examination that feeds intake, smoothness reached about 1100 seconds.
4. the dry extraordinary paper machine of at a high speed contrary net multiple roll and the complete machine comprehensive energy consumption of existing paper machine and the ability of manufacturing paper with pulp are on year-on-year basis: improving the optimum dry speed of a motor vehicle is existing 1.9 times.Ton paper is integrated power-saving 65% on year-on-year basis, and water saving 35% economizes on coal 45%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is existing paper machine schematic diagram.
Fig. 2 is the dry extraordinary paper machine schematic diagram of at a high speed contrary net multiple roll.
Fig. 3 is operation schematic diagram of the present utility model.
The specific embodiment
The utility model is the example that adopts right hand machine, and unrestricted practical range of the present utility model, all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Shown in figure three: the reverse forming net device 210 of a kind of high speed dry extraordinary paper machine of contrary net multiple roll, reverse forming net device 210 comprises forming board 213, Wiper blade 214, suction box 215 and forming net 219.Described forming net 219 is by comprising breast roll 212, and suction couch roll 217 and deflector roll are in interior a plurality of member supporting, and the centre is provided with forming board 213, Wiper blade 214 and suction box 215.The rotation direction of described forming net device 210 is opposite with the complete machine rotation direction, so be referred to as reverse forming net device.
We are for the ease of understanding, and we use the direction that represents softwood pulp and hardwood pulp of " E " in the drawings.The one side of sealing represents hardwood pulp, and the one side of opening represents softwood pulp.The direction of arrow among the figure is exactly rotation direction or direction of advance.
Paper pulp is injected on the forming net 219 with suitable width, angle, speed, flow uniformity by head box 211, and described forming net 219 rotation directions are to turn round according to the direction of arrow mutually.Paper web 226 is when forming net, " E's " is opening down, the expression hardwood pulp is descending at upper softwood pulp, after paper web 226 enters lower felt 318, entering simultaneously pressing device 220 with transporting felt 228 dewaters, go out pressing device 220 rear paper webs 226 and break away from lower felt 218, with transporting felt 328 runnings.At this moment, " E's " is opening up, represents most hardwood pulps lower, and most softwood pulps are upper.Through vacuum inhale move roller 234 inhale move after, paper web 226 is with glazing felt 238 runnings, with upwards operation of deflector roll, at this moment, the opening of " E " represents that towards glazing felt 238 most hardwood pulps are being attached on the glazing felt 238, most softwood pulps are outwardly.Last paper web 226 contacts with drying cylinder 247 under the effect of carrying roller 241, carries out drying.At this moment, " E's " is opening down, represents most hardwood pulps upper, and most softwood pulps are lower.
Thereby realize most hardwood pulps on paper web 226 top layers, most softwood pulps are at paper web 226 bottoms, the better effects if when printing is shifted, and smoothness reached about 1100 seconds.
Claims (3)
1. a high speed is against the reverse forming net device of the dry extraordinary paper machine of net multiple roll, and described reverse forming net device is provided with head box (211), breast roll (212), suction couch roll (217) and forming net device (210); Described forming net device (210) comprising: forming board (213), Wiper blade (214), suction box (215) and forming net (219); The rotation direction that it is characterized in that described forming net device (210) is opposite with the complete machine rotation direction; Described head box is located between described breast roll (212) and the drying section (203); Described forming net device is located between described head box and the press section, and paper pulp (216) has formed paper web (226) through pressing device at described forming net device, then moves roller (234) suction by the vacuum suction and moves.
2. the reverse forming net device of the high speed according to claim 1 dry extraordinary paper machine of contrary net multiple roll is characterized in that described forming net (219) by comprising breast roll (212), and suction couch roll (217) and deflector roll are in interior a plurality of member supporting.
3. the reverse forming net device of the dry extraordinary paper machine of the contrary net multiple roll of high speed according to claim 1, it is characterized in that through vacuum inhale move roller (234) inhale move after, hardwood pulp is in the front that becomes paper (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275458 CN202744879U (en) | 2012-06-08 | 2012-06-08 | Reverse forming net device for high-speed reverse net multi-roll drying special papermaking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275458 CN202744879U (en) | 2012-06-08 | 2012-06-08 | Reverse forming net device for high-speed reverse net multi-roll drying special papermaking machine |
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| Publication Number | Publication Date |
|---|---|
| CN202744879U true CN202744879U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220275458 Expired - Fee Related CN202744879U (en) | 2012-06-08 | 2012-06-08 | Reverse forming net device for high-speed reverse net multi-roll drying special papermaking machine |
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| Country | Link |
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| CN (1) | CN202744879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
-
2012
- 2012-06-08 CN CN 201220275458 patent/CN202744879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
| CN102704314B (en) * | 2012-06-08 | 2016-06-08 | 方汉佐 | The dry reverse forming net device of special paper of inverse net multiple roll at a high speed |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20160608 |