CN202809376U - Half-wet felt device for high-speed inverse-mesh multi- roller drying special paper machine - Google Patents
Half-wet felt device for high-speed inverse-mesh multi- roller drying special paper machine Download PDFInfo
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- CN202809376U CN202809376U CN 201220268404 CN201220268404U CN202809376U CN 202809376 U CN202809376 U CN 202809376U CN 201220268404 CN201220268404 CN 201220268404 CN 201220268404 U CN201220268404 U CN 201220268404U CN 202809376 U CN202809376 U CN 202809376U
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- 238000001035 drying Methods 0.000 title claims abstract description 101
- 230000000694 effects Effects 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005406 washing Methods 0.000 abstract 2
- 238000007639 printing Methods 0.000 description 20
- 238000010023 transfer printing Methods 0.000 description 17
- 238000003825 pressing Methods 0.000 description 13
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- 238000000034 method Methods 0.000 description 9
- 210000000481 Breast Anatomy 0.000 description 8
- 230000003287 optical Effects 0.000 description 8
- 239000011122 softwood Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
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- 210000001519 tissues Anatomy 0.000 description 6
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- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
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Abstract
The utility model provides a half-wet felt device for a high-speed inverse-mesh multi-roller drying special paper machine. The half-wet felt device 230 comprises an upper felt 238, a dripping washing device 231, two groups of suction boxes 235, an upper felt drying baby dryer 237 and a vacuum suction-move device 234, wherein one group of the two groups of the suction boxes are arranged between the dripping washing device 231 and the upper felt drying baby dryer 237, and the other group of the suction boxes are arranged between the upper felt drying baby dryer 237 and the vacuum suction-move device 234; and the water content of the upper felt is among 30-60 percent, preferentially 40 percent. According to the utility model, when the water content of the upper felt is reduced about 40 percent, the water content of a paper web 226 is taken away at the drying part, so as to reduce the burden of a drying cylinder 247 and further to improve the benign vehicle speed and the production efficiency; and when the half-wet felt device is in combination with the multi-roller drying device, the effective drying surface of the drying cylinder is improved and the benign drying speed of the paper web 226 is further increased, so as to greatly improve the production efficiency and achieve energy saving effect.
Description
Technical field
The utility model relates to a kind of papermaking equipment field.Especially a kind of manufacturing tissue machine.Particularly make the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed 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 of control uniform temperature, pressure and 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 not only quality of finished paper requirement high, and printing and transfer performance also require height.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, it is low to solve production efficiency, reduces energy resource consumption, advocates the production of cleaning low-carbon (LC), improves the quality of products, and has 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 a kind of manufacturing tissue machine.Especially make the dry extraordinary paper machine half wet felt device of the at a high speed contrary net multiple roll of Chinese assistant 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 forming section 201 comprises head box 211, breast roll 212, suction couch roll 217 and reverse forming net device 210.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 glazing felt 238, the wash mill that drips, and suction box, the dry baby dryer of glazing felt and vacuum are inhaled moving device; The dry baby dryer of described glazing felt is located on the frame, also is provided with drip wash mill and suction box on the described frame; Described suction box has two groups.One group in described two groups of suction boxs is located at described dripping between wash mill and the dry baby dryer of described glazing felt, and another group is located at the dry baby dryer of described glazing felt and vacuum is inhaled between the moving device; The moisture content of described glazing felt is 30%-60%.Half that the dry baby dryer diameter of described glazing felt is the drying cylinder diameter.The frequency of dripping of the described wash mill that drips is 1Hz-30Hz, is preferably 10Hz-15Hz.
Described half wet felt device 230 comprises that moisture content is 40% glazing felt 238, the wash mill 231 that drips, and suction box 235, the dry baby dryer 237 of glazing felt and vacuum are inhaled moving device 234.Described moisture content is that 40% glazing felt 238 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 the glazing felt 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, it is in full accord to reach paper web moisture content, 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, goes out two road suction boxs 235 through the dry baby dryer 237 of drip wash mill 231 and glazing felt, enters the glazing felt 238 of moisture control about 40% 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%, 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 °, can improve the effective drying surface about about 26% of drying cylinder 247.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, and when paper web 226 entered optical press roll 245, its moisture content was about about 11%, and 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 is about about 8%, so the smoothness of page 246, glossiness, tightness improve greatly, and 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.
7. 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 two: a kind of dry extraordinary paper machine of the at a high speed contrary net multiple roll of Chinese assistant of making the tissue papers such as transfer printing body paper and decorating base paper, the dry extraordinary paper machine of the at a high speed contrary net multiple roll of described Chinese assistant comprises reverse forming net device 210, the pressing device 220 of three rollers, two nips, half wet felt device 230, multiple roll drying device 240.Described reverse forming net device 210, its rotation direction is opposite with the complete machine rotation direction.Reverse forming net device 210 is characterized in that: rotation direction and paper delivery opposite direction.Specifically: this example is right hand machine, and the rotation direction of reverse forming net device 210 is left.
Described half wet felt device 230 is with the existing glazing felt 138 of drying section, goes out two road suction boxs 235 through drip wash mill 231 and drying device, enters the woollen blanket of moisture control about 40% before the carrying roller 241.
Described multiple roll drying device 240 is to be provided with drying cylinder 247 in frame 204, and drying cylinder 247 is according to right handed, is provided with a carrying roller 241, two carrying rollers 242, three carrying rollers 243, light carrying roller 244, optical press roll 245 according to different angles around drying cylinder 247.And by pressure exerting arrangement separately drying cylinder 247 is exerted pressure, described pressure exerting arrangement is to carrying roller separately or breaks away from drying cylinder 247 and release or device that drying cylinder 247 is exerted pressure.A described carrying roller 241, the central vertical direction eccentric angle of its center and drying cylinder 247 are 10 °-80 °, and preferably 45 °-65 °, best angle is 55 °.Be partial to a counterclockwise side.Described two carrying rollers 242, the central vertical direction eccentric angle of its center and drying cylinder 247 are 0 °-50 °, and preferably 5 °-25 °, best angle is 15 °.Be partial to a counterclockwise side.Described three carrying rollers 243, the central vertical direction eccentric angle of its center and drying cylinder 247 are 0 °-40 °, and preferably 5 °-20 °, best angle is 10 °.Be partial to a clockwise side.Described smooth carrying roller 244, the central vertical direction eccentric angle of its center and drying cylinder 247 are 10 °-80 °, and preferably 45 °-65 °, the optimum position is 55 ° and is partial to a clockwise side.Optical press roll 245, the central horizontal direction eccentric angle of its center and drying cylinder 247 are 0 °-50 °, and preferably 0 °-25 °, best angle is 13 °, are partial to a counterclockwise side.
Paper pulp is injected on the reverse forming net device 210 with suitable width, angle, speed, flow uniformity by head box 211, described reverse forming net device 210 is the forming nets 219 by member supporting such as breast roll 212, suction couch rolls 217, and the centre is provided with the formations such as forming board 213, Wiper blade 214, suction box 215.The rotation direction of reverse forming net device 210 is opposite with the complete machine rotation direction.After paper web 226 has arrived suction couch roll 217, paper web 226 enters lower felt 218, enters simultaneously pressing device 220 with transporting felt 228 and dewaters, and goes out pressing device 220 rear paper webs 226 and breaks away from lower felt 218, the reverse side of paper web 226 turns round with transporting felt 228 up.Through the vacuum of more than half wet felt devices 230 inhale move roller 234 inhale move after, paper web 226 is 40% glazing felt 238 runnings with moisture content, with upwards operation of deflector roll, facing up of last paper web 226 contacts with drying cylinder 247 under the effect of a carrying roller 241, carries out drying.Be that 40% glazing felt 238 realizes that most hardwood pulps in paper webs 226 fronts are attached to drying cylinder 247 surfaces by moisture content, the front that has formed paper web 226 is that the overwhelming majority is hardwood pulp, and reverse side is softwood pulp.
Paper web 226 is 40% glazing felt 238 with moisture content, enter drying cylinder 247 bottoms, under the linear pressure of a carrying roller 241, the moisture content of paper web 226 penetrates in the glazing felt 238 and along with glazing felt 238 goes out a carrying roller 241, when going out a carrying roller 241, paper web 226 is attached to drying cylinder 247 surfaces, between a carrying roller 241 and two carrying rollers 242, glazing felt 238 breaks away from by woollen blanket diastole roller and paper web 226, is for the moisture content in the better evaporation paper web 226.The a large amount of steam of paper web 226 evaporations this moment impact paper web 226, the degree of pasting that makes paper web 226 is along with the rotation of drying cylinder 247 progressively reduces, its degree of pasting is 100 when a carrying roller 241, during so to two carrying rollers 242, its degree of pasting is approximately about 70, under the linear pressure of two carrying rollers 242, paper web 226 and the degree of pasting of drying cylinder 247 get back to again 100.Tightness and the quantitative tightness of paper web 226 have been improved simultaneously.Between two carrying rollers 242 and three carrying rollers 243, moisture content is that 40% glazing felt 238 breaks away from by woollen blanket diastole roller and paper web 226, equally also is in order better to evaporate the moisture content in the paper web 226.This moment, paper web 226 same evaporation water steams impacted paper web 226, the degree of pasting of paper web 226 is along with the rotation of drying cylinder 247 progressively reduces, during to light three carrying roller 243, its degree of pasting is approximately about 70, under the linear pressure of three carrying rollers 243, paper web 226 and the degree of pasting of drying cylinder 247 get back to again 100, again improve the degree of pasting of paper web 226 and drying cylinder 247.
Paper web 226 is close to drying cylinder 247 surfaces and is remained in operation with drying cylinder 247, and glazing felt 238 breaks away from by deflector roll roller and paper web 226, is provided with drip wash mill 231 and suction box 235 before entering the dry baby dryer 237 of woollen blanket.The described wash mill 231 that drips is to walk up and down also can regulate the device of the frequency of dripping.Described suction box 235 is devices that the residue on the glazing felt 238 and moisture content are siphoned away, between the dry baby dryer 237 of wash mill 231 woollen blankets that dripping.Its effect is equivalent to the dripping irrigation principle in desert.After woollen blanket breaks away from the dry baby dryer 237 of woollen blanket, enter and be provided with second suction box 235 before the vacuum suction moves roller 234, described second suction box 235 is the water absorbers to the back side of relative carrying paper web 226, and mainly being also not to have the moisture content of evaporation to siphon away when the dry baby dryer 237 of woollen blanket heats.The moisture content of glazing felt 238 about 40% when going out second suction box 235.
Before entering dryer hood 251, paper web 226 is provided with light carrying roller 244, light carrying roller 244 does not coat woollen blanket, so under the linear pressure of light carrying roller 244, the reverse side felt mark of energy Effective Raise paper web 226, more the smoothness in Effective Raise front and glossiness improve simultaneously deflection, tightness and again improve degree of pasting.
Paper web 226 goes out when dryer hood 251 is laggard to enter optical press roll 245, and paper web 226 surpasses the effect of soft calendaring 105 under the linear pressure of optical press roll 245 because this moment page 246 moisture content be 11%, and when entering soft calendaring 105, the moisture content of page 246 is 8%.The smoothness of page 246, glossiness, tightness improve greatly, and the fibr tissue of page 246 is tightr, and the physical property of page 246 improves, and tear-resistant degree has the raising of matter, thereby existing follow-up soft calendaring 105 devices can be removed.
Also be provided with paper defects online detection and control system 290 between drying cylinder 247 and reeling end 209, online paper defects detects the quality that control system 290 can effectively be controlled to paper 206.
In manufacture process, printing performance adapts to 208 pairs of paper webs of agent bringing device 226 and adds printing performance adaptation agent, makes into the printing of paper 206 and the effect of transfer and reaches optimum level.
Claims (7)
1. a high speed is against the dry extraordinary paper machine half wet felt device of net multiple roll, it is characterized in that described half wet felt device (230) comprises glazing felt (238), wash mill (231) drips, suction box (235), the dry baby dryer (237) of glazing felt and vacuum are inhaled moving device (234); The dry baby dryer of described glazing felt (237) is located on the frame (204), also is provided with the wash mill that drips (231) and suction box (235) on the described frame; Described suction box (235) has two groups.
2. high speed according to claim 1 is against the dry extraordinary paper machine half wet felt device of net multiple roll, it is characterized in that one group in described two groups of suction boxs is located between the described wash mill that drips (231) and the dry baby dryer of described glazing felt (237), another group is located at the dry baby dryer (237) of described glazing felt and vacuum is inhaled between the moving device (234); The moisture content of described glazing felt (238) is 30%-60%.
3. the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed according to claim 2 is characterized in that the moisture of described glazing felt is divided into 40%.
4. the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed according to claim 1 is characterized in that half that dry baby dryer (237) diameter of described glazing felt is drying cylinder (247) diameter.
5. the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed according to claim 1 is characterized in that the frequency of dripping of the described wash mill that drips (231) is 1Hz-30Hz.
6. the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed according to claim 1 is characterized in that the frequency of dripping of the described wash mill that drips (231) is 10Hz-15Hz.
7. the dry extraordinary paper machine half wet felt device of the contrary net multiple roll of high speed according to claim 1 is characterized in that every group of at least one suction box of described suction box (235).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268404 CN202809376U (en) | 2012-06-08 | 2012-06-08 | Half-wet felt device for high-speed inverse-mesh multi- roller drying special paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268404 CN202809376U (en) | 2012-06-08 | 2012-06-08 | Half-wet felt device for high-speed inverse-mesh multi- roller drying special paper machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202809376U true CN202809376U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268404 Expired - Fee Related CN202809376U (en) | 2012-06-08 | 2012-06-08 | Half-wet felt device for high-speed inverse-mesh multi- roller drying special paper machine |
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| Country | Link |
|---|---|
| CN (1) | CN202809376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817269A (en) * | 2012-06-08 | 2012-12-12 | 方汉佐 | Semi-wet blanket device of high-speed, reverse-net and multi-roller drying type special paper making machine |
-
2012
- 2012-06-08 CN CN 201220268404 patent/CN202809376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817269A (en) * | 2012-06-08 | 2012-12-12 | 方汉佐 | Semi-wet blanket device of high-speed, reverse-net and multi-roller drying type special paper making machine |
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