CN102817273A - Special high-speed multi-roll drying paper machine with reverse net - Google Patents
Special high-speed multi-roll drying paper machine with reverse net Download PDFInfo
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Abstract
A special high-speed multi-roll drying paper machine with a reverse net is applicable to paper machine of tissue paper and especially and specially used for making transfer printing base paper and decorative base paper. The special high-speed multi-roll drying paper machine with the reverse net comprises a frame 204, a forming part 201, a pressing part 202, a drying part 203 and a take-up part 209. The special high-speed multi-roll drying paper machine with the reverse net changes the prior art and mainly comprises a reverse forming net device 210, a three-roll pressing device 220 with two pressing zones, a semi-wet blanket device 230, a multi-roll drying device 240, and a solar drying cylinder cover device 250. The drying part 203 is further provided with an applier (208) of printing performance adaptive agent and a paper defect online detection control system 290. Therefore, paper quality is improved, and printing effect and transfer effect are improved. The paper made by the machine has the advantages that pattern forms are kept vivid and delicate with clear layering and high stereoscopic impression, gloss of printed matters is improved, color is bright, and the like. Compared with overall comprehensive energy consumption and papermaking capacity of the existing paper machine, the special high-speed multi-roll drying paper machine with the reverse net has the advantages that fine drying speed is increased to 1.9 times of the existing speed; and for tonnage of paper, comprehensive electricity saving is 65%, water saving is 35%, and coal saving is 45%.
Description
Technical field
The present invention relates to a kind of papermaking equipment field.Especially a kind of manufacturing tissue machine.Particularly make the dry extraordinary paper machine of the contrary net of high speed 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.Earlier various decorative patterns, pattern, color are printed on the TRANSFER PRINTING body paper; The TRANSFER PRINTING body paper that will be printed on decorative pattern, pattern then contacts with fabric closely, and under the situation of control uniform temperature, pressure and time, dyestuff is transferred on the fabric from calico paper, gets into fabric through diffusion then, 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 the cloth surface by the TRANSFER PRINTING body paper; Especially in the transfer process of back, pattern will keep characteristics such as flower shape is true to nature, decorative pattern is careful, clear layer, third dimension are strong, this to TRANSFER PRINTING body paper performance demands than higher.
Decorating base paper is widely used in the decoration field.Like desk, furniture etc.Need paste the patterns such as wood grain that print on the decorating base paper surface in the application, the quality of decorating base paper and printing performance are determining 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 force of strain in paper, and speed is fast more, and tension force is big more, therefore requires paper to have enough intensity.
(2) exigent smoothness.Have only smoothness high, printing effect is good, and especially TRANSFER PRINTING body paper and decorating base paper because poor as if TRANSFER PRINTING body paper smoothness, 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 so just can print the better effects if when shifting at bottom, and 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, be difficult to reach requirement at manufacturing TRANSFER PRINTING body paper.Existing technology, production efficiency is low, and manufacturing cost is corresponding too high, and product quality is difficult to reach market demands.
Fig. 1 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.Said forming net 119 is by breast roll 112, 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.Said head box 111 is located at breast roll 112 near-ends.Drying section 103 comprises drying cylinder 147 and following drying cylinder 107, and following drying cylinder 107 is located between drying cylinder 147 and the reeling end 109, also is provided with soft calendaring 105 between following drying cylinder 107 and the reeling end 109.
In paper-making process, forming section 101 is processes that dehydration is shaped, and through a large amount of research and practice, we find the more important thing is the process of a deposition.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.
Though tissue papers such as TRANSFER PRINTING body paper and decorating base paper are not very big to the smoothness and the glossiness requirement of reverse side, the smoothness of reverse side is crossed to hang down in batching can directly influence positive smoothness.So after paper web 126 goes out drying cylinder 147, be provided with drying cylinder 107 and soft calendaring 105 facilities down 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 order to improve the drying capacity of drying cylinder 147, generally be provided with dryer hood 150, dryer hood 150 adopts double layer material to make, and in interlayer, gives dryer hood 150 heating with live steam, and air pressure is approximately 0.1Mpa, so consumption coal consumption electricity is all very high.When paper carries out dewatered drying through cylinder body,, need constantly the humid air in the dryer hood 150 to be discharged outside the dryer hood 150 because moisture content is very high in the dryer hood 150.Thereby reach the moisture content of removing on the paper.Running up that high-power exhaust fan do not stop is housed on the present dryer hood 150 can not be too high with the humidity of protecting in the special dryer hood 150, helps paper rapid draing.Humidity in dryer hood 150 is very big; Steam can not in time be discharged; Will condense a large amount of globule and attached to the cylinder cover inner surface, when the globule gathers when a certain amount of, inevitable free-falling is on drying cylinder 147 cylinder bodies and paper of continuous operation; Increase the moisture of paper web 126 on the one hand, reduced the quality that becomes paper 106 on the other hand.So the live steam cost is disregarded in existing a lot of paper mill in process of production; In dryer hood 150, strengthen the live steam amount of pouring into; Cause the pressure in the dryer hood 150 even surpass the rated pressure that designs, strengthen steam pressure and have very big potential safety hazard, quite dangerous; A lot of dryer hood explosive incidents are just arranged at home, make operating personnel's personal safety and property safety receive serious threat.
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 the 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 inadequately printing defects that waits of color.Following drying cylinder 107 and soft calendaring 105 facilities, energy resource consumption is big, and it is not enough that carbon monoxide and CO2 emissions are big 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
To the above-mentioned deficiency on the prior art, the technical problem that the present invention will solve provides a kind of manufacturing tissue machine.Especially make the dry extraordinary paper machine of the contrary net of high speed multiple roll of TRANSFER PRINTING body paper and decorating base paper.
Shown in Fig. 2-4, the technical solution adopted for the present invention to solve the technical problems is: the dry extraordinary paper machine of contrary at a high speed net multiple roll comprises frame 204, forming section 201, press section 202, drying section 203 and reeling end 209;
Said forming section 201 comprises head box 211, breast roll 212, suction couch roll 217 and reverse forming net device 210.Said head box 211 is arranged on said breast roll 212 near-ends, and is arranged between said breast roll 212 and the said drying section.Said forming net device 210 comprises forming board 213, Wiper blade 214, suction box 215 and forming net 219.Said 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 said forming net device 210 is opposite with the complete machine rotation direction, so be referred to as reverse forming net device;
Said press section 202 adopts the pressing device 220 of three rollers, two nips; The pressing device 220 of said 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 road is that vacuum furnace 221, the second roads are plain-barreled rolls 222, and pressure roller 223 double as are turned one's head the roller effect;
Said drying section 203 comprises half wet felt device 230, drying cylinder 247, multiple roll drying device 240 and solar energy dryer hood device 250.
Said half wet felt device 230 comprises that moisture content is 40% glazing felt 238, the wash mill 231 that drips, and suction box 235, dry baby dryer 237 of glazing felt and vacuum are inhaled moving device 234.Said moisture content is that 40% glazing felt 238 is provided in a side of drying section 203 and is used for carrying and carrying paper web 226, and the wash mill 231 that drips is the devices that are used for washing glazing felt 238.Said suction box 235 has two groups; Every group of at least one suction box; First group is woollen blanket front suction box, and second group is woollen blanket reverse side suction box, and said woollen blanket front suction box 235 is devices that the residue on the glazing felt 238 and moisture content are siphoned away; Said woollen blanket reverse side suction box 235 is the water absorbers that are used 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.
Said drying cylinder 247 is through the mode of heating paper web 226 to be dried, and makes paper web 226 dryings become the device of paper 206.
Said 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.Said pressure exerting arrangement is according to producing needs, thus the device that dryer roll is separately exerted pressure drying cylinder 247 is exerted pressure.
Said solar energy dryer hood device 250 comprises dryer hood 251, solar energy heating assembly 252, hot-water storage jar 253, the auxilliary automatic heating component 254 of temperature control electricity.Said dryer hood 251 is the interlayer that double-decker forms, and is said, and sandwich is made up of with outer internal layer, scribbles mercury at outer field inner surface, makes heat only to internal layer heat conduction, plays insulation effect.The interlayer of dryer hood 251 is used for storing insulation hot water.The two ends of said dryer hood 251 are provided with waste heat lid 259, waste heat lid 259 by up and down two be provided with drying cylinder axle journal 260 holes in the middle of forming.The bead of waste heat lid 259 is provided with reticulated cell; Being used for fixing width is the waste and old woollen blanket limit of 2cm; The waste and old woollen blanket limit of said 2cm is to be used to protect drying cylinder 247 flank wears; Can also seal up the waste heat that distribute naturally at drying cylinder 247 two ends, said waste heat lid 259 is to be used for collecting the waste heat that distribute naturally at drying cylinder 247 two ends.Dryer hood 251 is provided with crescent moon hole 256 near drying cylinder operating surface one end internal layer top, and skin is provided with hand hole 257.Dryer hood 251 is located at directly over the drying cylinder 247, leaves the space between it, also is provided with warm-air pipe 255 at paper web entering cover body and drying cylinder gap, and the diameter of said warm-air pipe 255 is 75mm.It is provided with row's equally distributed
aperture, and aperture is aimed at the space and raised up 45 °.Said warm-air pipe 255 seals near drying cylinder 247 operating surfaces one end.Be connected with blower outlet near drying cylinder 247 driving faces one end, said blower inlet is located in the interlayer of drying cylinder driving face direction dryer hood 251, and said air blast is the waste heat that is used to pump drying cylinder 247 driving faces one end.
Said hot-water storage jar 253 adopts double-decker and inner surface to be coated with mercury, to reach heat preservation effect.
Also be provided with printing performance at drying section 203 and adapt to agent bringing device 208, it is to be used for page 249 is added the device that printing performance adapts to agent 208 that said 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. said 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 Fig. 2 is a right hand machine application example of the present invention.As shown in Figure 2: paper pulp 216 has formed paper web 226 on reverse forming net device 210, through pressing device 220 inhale through vacuum move roller 234 inhale move after, it is dry that glazing felt 238 is transported to drying cylinder 247 places.Through 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 said three rollers, two nips is characterized in that first road is that vacuum furnace 221, the second roads are plain-barreled roll squeezings 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 influence of paper 206.The application of the pressing device 220 through three rollers, two nips, it is in full accord to reach paper web moisture content, has improved the tightness and the mass dryness fraction of paper web 226 simultaneously.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 practiced thrift the energy, reduced carbon monoxide and emission amount of carbon dioxide.
3. be provided with half wet felt device 230 and multiple roll drying device 240 at drying section 203.Said half wet felt device 230 is with drying section 203 existing glazing felts 238, goes out two road suction boxs 235 through the wash mill 231 that drips with the dry baby dryer 237 of glazing felt, gets into a carrying roller 241 preceding moisture content and is controlled at the glazing felt 238 about 40%.The dry baby dryer 237 of said glazing felt adopts the condensed water of flash steam and discharge of big drying cylinder 247 as the temperature rise material, and does not want drive station.
4. said 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 through pressure exerting arrangement separately.The moisture content of paper web 226 is about 68% under the normal condition; 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, through facts have proved, 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 226 coating drying cylinders 247 of paper web 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 ton paper consumption coal on year-on-year basis more than at least 26%.Thereby improved production efficiency, practiced thrift the energy, reduced carbon monoxide and emission amount of carbon dioxide.
5. before paper web 226 got into a carrying roller 241, moisture content was still very high, and water content is about 68%; So the water evaporates amount of paper web 226 is big when a carrying roller 241, after paper web 226 went out a carrying roller 241, a large amount of steam that drying cylinder 247 and paper web are 226 had stronger impulsive force to paper web 226; This moment, paper web 226 descended with the degree of pasting of drying cylinder 247 greatly, if when a carrying roller 241, paper web 226 is made as 100 with the degree of pasting of drying cylinder 247; When getting into two carrying rollers 242; Its degree of pasting is approximately about 70, under the linear pressure of two carrying rollers 242, makes the paper web 226 and the degree of pasting of drying cylinder 247 bring up to 100 again.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 getting into 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 once more with the degree of pasting of drying cylinder 247.Effectively improve the drying effect of 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 paper web 226 positive smoothness and glossiness.Reach the equal effect of drying cylinder 107 down, therefore need not to re-use down drying cylinder 107.Under the linear pressure of light carrying roller 244, improve degree of pasting once more to 100, improved the drying capacity of drying cylinder.Effectively improve the speed of a motor vehicle.
7. optical press roll 245 does not coat woollen blanket, and when paper web 226 got into optical press rolls 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 are 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.Reach the effect of energy-saving and emission-reduction once more.
8. the present invention is provided with dryer hood 251 above drying cylinder 247, in process of production, effectively utilizes the waste heat at drying cylinder 247 two ends.Make the higher temperature of maintenance of dryer hood 251 inside; Be difficult at dryer hood 251 inner surfaces a large amount of globule that condenses; So need in the interlayer of dryer hood 251, not feed fresh steam; As shown in Figure 3, adopt dry baby dryer 337 discharge temperatures of woollen blanket to be about 65 ℃ condensed water (Condensed water), through 252 heating of solar energy heating assembly; Solar components 252 heated temperatures are injected in the hot-water storage jar 253 for about 90 ℃; Hot-water storage jar 253 is injected into hot water in the interlayer of dryer hood 251, is provided with the auxilliary automatic heating component 254 of temperature control electricity in said dryer hood 251 interlayers, and the auxilliary automatic heating component 254 of said temperature control electricity is that to be used for keeping the hot water temperature in the interlayer of hot dryer hood 251 be more than 70 °.Guaranteed the equilibrium temperature of dryer hood 251 inner surfaces.Reduced the possibility of condensing the globule in the dryer hood 251.Owing to have a narrow range of temperature, so firing rate is fast, unnecessary hot-water storage is in hot-water storage jar 253; Use hot water in the hot-water storage jar 253 evening, the hot water temperature is below 70 ° the time, the auxilliary automatic heating component 254 of temperature control electricity; Automatically to the heating of the hot water in the dryer hood 251, because have a narrow range of temperature, firing rate is fast; Energy consumption is extremely low, even very little in the rainy weather power consumption.Neither use live steam in the dryer hood 251, solved safety problem again, greatly protect the safety of operating personnel's the person and property., paper web 226 is provided with warm-air pipe 255 before getting into dryer hood 251; Its hot blast that drying cylinder 247 driving faces one end drying cylinder 247 is come out naturally through air blast is 45 ° with angle and blows on the paper web 226 of being close to drying cylinder 247 surfaces; Can effectively stop most of cold air to get into dryer hood 251 inside, reduce the loss of dryer hood 251 internal heat, can also accelerate the air velocity of dryer hood 251 inside; Dryer hood 251 inner moist steam are got rid of fast, improved drying effect.Dryer hood 251 is dead angles of existing dryer hood 150 near the place in drying cylinder 247 operating surfaces one first lunar month tooth hole 256, and air flow property is little, forms water droplet easily.Open a crescent moon hole 256 herein, make it become the fastest position of flow velocity on the contrary.256 belows, crescent moon hole also are provided with baffle plate, can regulate the openings of sizes in crescent moon hole 256, to regulate the flow velocity in crescent moon hole 256.Outside hand hole 257 is the baffle plates that are used to operate 256 belows, crescent moon hole.Because the air themperature in the cover body in the interlayer of dryer hood 251, so the hot blast that operating surface one end drying cylinder 447 comes out naturally sucks in the dryer hood 251 through the crescent moon hole fast, is effectively improved in crescent moon hole 256.Guarantee that further dryer hood 251 inside can not produce water droplet.
9. be provided with printing performance at drying section 203 and adapt to agent bringing device 208.Thereby paper web 226 is applied printing performance adapt to printing effect and the transfer effect that agent 299 improves into paper 206.Pattern spends more that shape is true to nature, decorative pattern is careful, clear layer, third dimension are strong, improves the gloss of printing, and color is very bright-coloured etc.
10. online paper defects detects the quality that control system 290 can effectively be controlled to paper 206.
The invention has the beneficial effects as follows:
1, paper web 226 through reverse forming net device 210 and reverse running pressing device 220 after; The effect that obtains is just anti-; The hardwood pulp face of paper web 226 is attached to 247 of drying cylinders and goes up dry; 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 effectively improve into the quality of paper 206, has improved the tightness and the mass dryness fraction of paper web 226 simultaneously.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 down 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, through 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 present invention only can bring up to 1.6 times of speed of a motor vehicle on year-on-year basis in this part.On year-on-year basis steam can save 39% with corresponding consumption coal, water consumption and power consumption.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 here, and water saving 29% economizes on coal 39%.Improve into the smoothness and the glossiness of paper 206, quantitatively tightness.Through the detection one-tenth paper 206 copied of examination that feeds intake, smoothness reached about 1100 seconds.
4. printing performance adapts to the application of agent, has improved the effect of printing effect and transfer printing.
5. the application of solar energy dryer hood device 250.Energy resource consumption is equivalent to 0, can practice thrift consumption coal about 15% on year-on-year basis, water saving 15%.
6. Fig. 3 is a water circulation sketch map of the present invention; 90 ℃ of condensations (90 ℃ of Condensed water) water that drying cylinder 347 is discharged gets in the dry baby dryer 337 of woollen blanket of half wet felt device 230; The dry baby dryer 337 of woollen blanket is discharged 65 ℃ of condensed waters (65 ℃ of Condensed water) and is poured in the solar heat collector 252; The hot water of solar heat collector 252 (Hot Water) pours in the hot-water storage jar 253; Hot water pours in dryer hood 251 interlayers in the hot-water storage jar 253, because the condensed water that the dry baby dryer 337 of woollen blanket is discharged is 65 ℃, so the hot water that pours into dryer hood 251 interlayers from hot-water storage jar 253 is the hot water more than 60 ℃.The water (Water) of from dryer hood 251 interlayers, discharging still has temperature, flows back in the boiler (Boiler) through pipeline.Reduce the use amount and the coal consumption of water, the steam (Steam) of boiler (Boiler) is supplied with drying cylinder 347.Can obviously find out, reduce consumption coal, water consumption, the power consumption of boiler (Boiler).
7. the complete machine comprehensive energy consumption of contrary at a high speed dry extraordinary paper machine of net multiple roll and existing paper machine with the ability of manufacturing paper with pulp is 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 accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is existing paper machine sketch map.
Fig. 2 is that the present invention implements schematic diagram.
Fig. 3 water circulation flow chart of the present invention.
Fig. 4 is dryer hood 251 explosion type structure chart figure.
The specific embodiment
The present invention is the instance that adopts right hand machine, and unrestricted practical range of the present invention, and all equivalences of doing according to the described structure of claim of the present invention, characteristic and principle change or modify, and all should be included in claim of the present invention.
As shown in Figure 2: a kind of dry extraordinary paper machine of the contrary net of high speed multiple roll of making tissue papers such as TRANSFER PRINTING body paper and decorating base paper; The dry extraordinary paper machine of the contrary net of said high speed multiple roll is adapted to agent bringing device 208 and is formed by the pressing device of reverse forming net device 210, three rollers, two nips 220, half wet felt device 230, multiple roll drying device 240, solar energy dryer hood device 250, printing performance.Said 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 are in the opposite direction.Specifically: this instance is a right hand machine, and the rotation direction of reverse forming net device 210 is left.
Said half wet felt device 230 is with the existing glazing felt 138 of drying section, goes out two road suction boxs 235 through the wash mill 231 that drips with drying device, gets into a carrying roller 241 preceding moisture content and is controlled at the woollen blanket about 40%.
Said multiple roll drying device 240 is on frame 204, to be provided with drying cylinder 247, and drying cylinder 247 is according to right handed, around drying cylinder 247, 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.And through pressure exerting arrangement separately drying cylinder 247 is exerted pressure, said 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 said 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 side counterclockwise.Said 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 side counterclockwise.Said 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 clockwise direction one side.Said 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 clockwise direction one 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 side counterclockwise.
Paper pulp is injected on the reverse forming net device 210 with suitable width, angle, speed, flow uniformity through head box 211; Said 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 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 gets into lower felt 218, gets into pressing device 220 simultaneously with transporting felt 228 and dewaters, and goes out pressing device 220 back 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.Through moisture content is that 40% glazing felt 238 realizes that paper webs 226 positive most hardwood pulps are attached to drying cylinder 247 surfaces, and the front that has formed paper web 226 is that the overwhelming majority is a hardwood pulp, and reverse side is a softwood pulp.
Paper web 226 is 40% glazing felt 238 with moisture content, gets into 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 through 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, and 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 100 again.The tightness and 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 through 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 were 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 rollers 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 100 again, improve the degree of pasting of paper web 226 and drying cylinder 247 once more.
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 through deflector roll roller and paper web 226, before getting into the dry baby dryer 237 of woollen blanket, is provided with drip wash mill 231 and suction box 235.The said wash mill 231 that drips is to walk up and down also can regulate the device of the frequency of dripping.Said 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, get into and be provided with the second road suction box 235 before the vacuum suction moves roller 234; The said second road suction box 235 is the water absorbers to the back side of relative carrying paper web 226, mainly is with when the dry baby dryer 237 of woollen blanket heats, also not having the moisture content of evaporation to siphon away.The moisture content about 40% of glazing felt 238 when going out the second road suction box 235.
, paper web 226 is provided with light carrying roller 244 before getting into dryer hood 251; Light carrying roller 244 does not coat woollen blanket; So under the linear pressure of light carrying roller 244; Can effectively improve the reverse side felt mark of paper web 226, more effective smoothness and glossiness that improves the front improves deflection, tightness simultaneously and improves degree of pasting once more.
Before getting into dryer hood 251, paper web 226 is provided with warm-air pipe 255; Said warm-air pipe 255 blows to hot blast the paper web 226 of being close to drying cylinder 247 surfaces on through air blast the waste heat that the drying cylinder driving end distributes naturally; Can effectively stop most of cold air to get into dryer hood 251 inside, reduce the loss of dryer hood 251 internal heat, can also accelerate the air velocity of dryer hood 251 inside; Dryer hood 251 inner moist steam are got rid of fast, improved drying effect.
Do not use steam in the interlayer of dryer hood 251; The condensed water (Condensed water) that adopts dry baby dryer 337 discharge temperatures to be about 65 ℃; Through 252 heating of solar energy heating assembly; Solar components 252 heated temperatures are injected in the hot-water storage jar 253 for about 90 ℃; By hot-water storage jar 253 hot water is injected in the interlayer of dryer hood 251, and is provided with the auxilliary automatic heating component 254 of temperature control electricity in dryer hood 251 interlayers, keeping the hot water temperature in the interlayer of hot dryer hood 251 is more than 70 °.Guaranteed the equilibrium temperature of dryer hood 251 inner surfaces.Reduced the possibility of condensing the globule in the dryer hood 251.
Paper web 226 goes out when dryer hood 251 is laggard goes into 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 getting into 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 can existing follow-up soft calendaring 105 devices be removed.
Between drying cylinder 247 and reeling end 209, also be provided with paper defects online detection and control system 290, online paper defects detects the quality that control system 290 can effectively be controlled to paper 206.
Fig. 3 is a water circulation sketch map of the present invention; 90 ℃ of condensations (90 ℃ of Condensed water) water that drying cylinder 347 is discharged gets in the dry baby dryer 337 of woollen blanket of half wet felt device 230; The dry baby dryer 337 of woollen blanket is discharged 65 ℃ of condensed waters (65 ℃ of Condensed water) and is poured in the solar heat collector 252; The hot water of solar heat collector 252 (Hot Water) pours in the hot-water storage jar 253; Hot water pours in dryer hood 251 interlayers in the hot-water storage jar 253, because the condensed water that the dry baby dryer 337 of woollen blanket is discharged is 65 ℃, so the hot water that pours into dryer hood 251 interlayers from hot-water storage jar 253 is the hot water more than 60 ℃.The water (Water) of from dryer hood 251 interlayers, discharging still has temperature, flows back in the boiler (Boiler) through pipeline.Reduce the use amount and the coal consumption of water, the steam (Steam) of boiler (Boiler) is supplied with drying cylinder 347.Can obviously find out, reduce consumption coal, water consumption, the power consumption of boiler (Boiler).
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 (14)
1. a high speed is against the dry extraordinary paper machine of net multiple roll, and it comprises frame (204), forming section (201), press section (202), drying section (203) and reeling end (209); Said forming section (201) comprises head box (211), breast roll (212), suction couch roll (217) and forming net device (210); Said forming net device (210) comprising: forming board (213), Wiper blade (214), suction box (215) and forming net (219); Said forming net (219) is provided with forming board (213), Wiper blade (214) and suction box (215) by a plurality of member supporting that comprise said breast roll (212), said suction couch roll (217) and deflector roll in the middle of the said forming net device (210); The rotation direction that it is characterized in that said forming net device (210) is opposite with the complete machine rotation direction; Said head box is located between said breast roll (212) and the said drying section; Said press section is arranged on the end of said forming section away from said reeling end.
2. the dry extraordinary paper machine of the contrary net of high speed according to claim 1 multiple roll is characterized in that said press section adopts the pressing device (220) of three rollers, two nips.
3. the dry extraordinary paper machine of the contrary net of high speed according to claim 2 multiple roll; It is characterized in that said pressing device (220) comprises pressure roller; Vacuum furnace and plain-barreled roll, said pressure roller are exerted pressure to said vacuum furnace and said plain-barreled roll simultaneously, and wherein first road is said vacuum furnace; Second road is said plain-barreled roll, and said pressure roller double as is turned one's head roller and used.
4. the dry extraordinary paper machine of the contrary net of high speed according to claim 1 multiple roll is characterized in that said drying section (203) comprises half wet felt device (230), drying cylinder (247), multiple roll drying device (240) and solar energy dryer hood device (350).
5. the dry extraordinary paper machine of the contrary net of high speed according to claim 4 multiple roll, it is characterized in that: said half wet felt device (230) comprising: glazing felt (238), the wash mill that drips (231), suction box (235) and woollen blanket drying device (237).
6. the dry extraordinary paper machine of the contrary net of high speed according to claim 5 multiple roll is characterized in that said half wet felt device (230) also comprises vacuum suction moving device (234).
7. the dry extraordinary paper machine of the contrary net of high speed according to claim 5 multiple roll, the humidity that it is characterized in that said glazing felt (238) is 20%-60%, preferred 30%-50%, the best is 40%.
8. the dry extraordinary paper machine of the contrary net of high speed according to claim 5 multiple roll; It is characterized in that said suction box (235) has two groups; Every group of at least one suction box; First group is the front suction box, and second group is the reverse side suction box, and said front suction box (235) will siphon away at residue and the moisture on the glazing felt (238); Said reverse side suction box (235) absorbs water to relative carrying page (246) back side of woollen blanket, and it does not also have moisture evaporated to siphon away when said woollen blanket drying device (237) is heated.
9. the dry extraordinary paper machine of the contrary net of high speed according to claim 4 multiple roll is characterized in that said multiple roll drying device (240) comprises a plurality of dryer rolls and the pressure exerting arrangement of dryer roll separately.
10. the dry extraordinary paper machine of the contrary net of high speed according to claim 9 multiple roll, the dryer roll quantity that it is characterized in that said a plurality of dryer roll devices (240) is more than three or three.
11. the dry extraordinary paper machine of the contrary net of high speed according to claim 9 multiple roll, the dryer roll that it is characterized in that said a plurality of dryer roll devices (240) is according to different angle distribution at drying cylinder (247) on every side.
12. the dry extraordinary paper machine of the contrary net of high speed according to claim 1 multiple roll; It is characterized in that said solar energy dryer hood device (250) comprises cover body (251); Solar energy heating assembly (252), hot-water storage jar (253), the auxilliary automatic heating component (254) of temperature control electricity.
13. the dry extraordinary paper machine of the contrary net of high speed according to claim 1 multiple roll; It is characterized in that said drying section also is provided with printing performance and adapts to agent bringing device (208), said printing performance adapts to agent bringing device (208) and is used for page (246) is added printing performance adaptation agent (299).
14. the dry extraordinary paper machine of the contrary net of high speed according to claim 1 multiple roll is characterized in that also being provided with paper defects online detection and control system (290) between said drying cylinder (247) and the reeling end (209).
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| CN2012101876432A CN102817273A (en) | 2012-06-08 | 2012-06-08 | Special high-speed multi-roll drying paper machine with reverse net |
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| CN2012101876432A CN102817273A (en) | 2012-06-08 | 2012-06-08 | Special high-speed multi-roll drying paper machine with reverse net |
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| CN104088189A (en) * | 2014-06-13 | 2014-10-08 | 浙江兰良实业有限公司 | Fourdrinier machine |
| CN106996051A (en) * | 2015-11-09 | 2017-08-01 | 维美德技术有限公司 | Production line for producing fiber web |
| CN112195677A (en) * | 2020-08-26 | 2021-01-08 | 肇庆万隆纸业有限公司 | High-speed double-cylinder long-net tissue paper wiping machine |
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Application publication date: 20121212 |