CN103669097A - Multi-cylinder long mesh paper machine used for producing high-filler paper - Google Patents
Multi-cylinder long mesh paper machine used for producing high-filler paper Download PDFInfo
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- CN103669097A CN103669097A CN201210334499.0A CN201210334499A CN103669097A CN 103669097 A CN103669097 A CN 103669097A CN 201210334499 A CN201210334499 A CN 201210334499A CN 103669097 A CN103669097 A CN 103669097A
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Abstract
The invention discloses a multi-cylinder long mesh paper machine used for producing high-filler paper. Compared with a traditional multi-cylinder long mesh paper machine with the same width and the same speed, the whole multi-cylinder long mesh paper machine is 8-25 meters longer, the mesh portion is 4-6 meters longer, the front drying system portion is 5-15 meters longer, and the rear drying system portion is 1-1.5 meters longer. Accordingly, corresponding structures are changed, the problem that the traditional paper machine can not manufacture cultural paper which meets the standards through high-filler paper pulp is solved, and the multi-cylinder long mesh paper machine has the advantages of being long in dehydration time, high in dehydration efficiency, good in dehydration quality, low in investment, good in drying effect and high in paper product quality.
Description
Technical field
The invention discloses a kind of multi-cylinder long mesh paper machine for the production of high filler paper, belong to paper technology production equipment field, be suitable for producing high filler paper, be particularly suitable for producing and using the paper of active calcium silicate as papermaking filler.
Background technology
Paper-making industry is that China Today (the Ye Shi world) consumes also one of large industry of the large and actual demand amount of Environmental costs, although Internet technology is advanced by leaps and bounds, but be accompanied by the develop rapidly of China's economic and global economy continue advance, China and the world do not change the aggregate demand of paper product, also slightly increase, demand to paper product, mean the demand to paper making pulps, and prepare the forest growth rate of paper making pulps far below the requirement consumes speed of paper making pulps, under the constant prerequisite of paper products total output, how to reduce paper making pulps consumption, and can produce high-quality paper, that one global problem pendulum is in face of the mankind.
Untie early this road difficult problem, significant to China.At present, the most of dependence on import of China's paper making pulps, import pulp amount has leapt to the first in the world, from strategic angle, the papermaking of China " with slurry " is in fact the use of " limited ", if You Yitian world wood pulp supply chain supply shortage, China is by " with slurry " the exhausted problem in the face of fearful, can directly threaten national security stable, the forest reserves of China are very limited, be difficult to the own paper product of reply and supply with, the China that does not first analyze today is here one of paper product state in short supply of maximum in the world still.
How under limited " with slurry " amount, produce more qualified paper product, people's problems in the urgent need to address, the different proportion of " with slurry " and filler, directly determining " with slurry " amount number, high filler just can be less with starching, under the equal prerequisite with slurry, just can have more paper, develop a paper machine, it is one of important aspect of the above-mentioned difficult problem of answer that this paper machine can go out the pulp production of high filler (30%～70% of proportion of filler) qualified paper product.
Known traditional paper machine mainly contains three types: long mesh paper making machine, cylinder mould machine, foudrinier.Wherein fourdrinier wire wire multi-cylinder paper machine is the mainstream model of paper machine, most paper grades of can manufacturing paper with pulp, tradition fourdrinier wire wire multi-cylinder paper function is prepared into standard compliant paper by conventional fillers paper pulp, and the problem of existence is well by high filler paper pulp, to be prepared into standard compliant cultural paper.
The inventor finds through research for many years, high filler (as: calcium silicates) paper pulp at traditional multi-cylinder long mesh paper machine (as shown in Figure 1, head box 1, wet end 2, press section 3, front baking cadre 4, sizing applicator 5, post-drying portion 6, calender 7, coil paper portion 8, order is arranged in frame 9, form paper machine) upper production, there is following problem:
1, the more traditional paper pulp filler retention of the filler retention of high filler paper pulp is high, and the more traditional common fillers water filtering performance of water filtering performance of wet end is poor, and the dehydrating effect of high filler paper pulp in conventional paper machines forming table is bad;
2, due to the free dewatering of high filler paper pulp compared with conventional filler paper pulp a little less than, need the auxiliary dewatering means in stronger outside, and the forced dehydration elements such as dry, wet vaccum dewatering box of traditional fourdrinier wire wire multi-cylinder paper machine are suitable for the common fillers paper pulp of easily dehydration to dewater, be unsuitable for the forced dehydration to high filler paper pulp, to such an extent as to high filler paper pulp is not enough in the dehydration of forced dehydration region, goes out wet end high humidity, shaping is poor, mass dryness fraction is too low;
3, in paper-making process, go out in the high filler page of press section and be rich in loose porous calcium silicate filling material, in its dry run, moisture is more difficult removes, hydrone easily retains in space, and the common fillers page that traditional multi-cylinder long mesh paper machine oven dry portion is suitable for more easily dehydrating is dried, be unsuitable for the moisture removal in high filler l Water Paper page, cause applying glue web dryness front and coil paper place lower, do not reach technological requirement, affect paper machine quality of finished.
Therefore, developing a kind of paper machine of new structure, the pulp production of high filler can be gone out to standard compliant paper, is people's problems in the urgent need to address.
Summary of the invention
The object of this invention is to provide a kind of multi-cylinder long mesh paper machine for the production of high filler paper, it can be prepared into operable paper by the paper pulp of high filler, has that dewatering time is long, dewatering efficiency is high, dehydration quality is good, paper sheet formation is good, it is low to invest, good drying effect, feature that finished paper quality is high.
The object of the present invention is achieved like this: a kind of multi-cylinder long mesh paper machine for the production of high filler paper, it has head box, wet end, press section, front baking cadre, sizing applicator, post-drying portion, calender, coil paper portion, each part mentioned above is sequentially arranged in frame, and the entire length of frame increases 8-25 rice with respect to the frame entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end of equal fabric width and the speed of a motor vehicle;
Or the entire length of frame increases 8-25 rice with respect to the frame entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end of equal fabric width and the speed of a motor vehicle; The length of front drying system portion increases 5-15 rice with respect to front drying system minister's degree of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle;
Or the entire length of frame increases 10-25 rice with respect to the frame entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end of equal fabric width and the speed of a motor vehicle; The length of front drying system portion increases 5-15 rice with respect to front drying system minister's degree of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of post-drying Account Dept increases 1-1.5 rice with respect to the post-drying Account Dept length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle;
Wherein, the length L of the forming table in wet end is with respect to the forming table length L of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle ' increase 10%-50%;
Traditional fourdrinier wire wire multi-cylinder paper machine of the relatively equal fabric width of the forming board lath quantity on the forming board in wet end and the speed of a motor vehicle increases 10%-50%, and the width A ' in traditional fourdrinier wire wire multi-cylinder paper machine forming board region of the relatively equal fabric width of the width A in forming board region and the speed of a motor vehicle increases 10%-50%;
The 5-10 bar forming board lath being parallel to each other is fixed on forming board top, and article one forming board width of sheet of close head box is between 150mm-300mm, and the width D of other forming board laths equates, between 50mm-80mm;
Traditional fourdrinier wire wire multi-cylinder paper machine quantity of the relatively equal fabric width of the quantity of scraping water element in wet end and the speed of a motor vehicle increases 10%-50%, and the relative conventional paper machines of length of scraping water element arrangements region increases 10%-50%;
On wet end, traditional fourdrinier wire wire multi-cylinder paper machine quantity of the relatively equal fabric width of the quantity of wet vacuum tank and the speed of a motor vehicle increases 20%-100%;
On wet end, traditional fourdrinier wire wire multi-cylinder paper machine quantity of the relatively equal fabric width of the quantity of dry vacuum case and the speed of a motor vehicle increases 50%-100%;
On wet end, traditional multi-cylinder long mesh paper machine number of the relatively equal fabric width of the quantity of high-pressure spray device and the speed of a motor vehicle increases 200%-500%;
The conventional paper machines front baking cadre drying cylinder of front baking cadre's the more equal fabric width of drying cylinder quantity and the speed of a motor vehicle increases 10%-50%;
Front baking cadre exit is provided with enhancing drying unit;
The conventional paper machines post-drying portion drying cylinder of the more equal fabric width of drying cylinder quantity of post-drying portion and the speed of a motor vehicle increases 20%-50%;
Import department of post-drying portion is provided with enhancing drying unit.
Advantage of the present invention is: because paper machine of the present invention changes Wire-cloth structure, for traditional wire-cloths structure, forming table length lengthens, thereby lengthened, gravity dehydration, low vacuum are dewatered, the length in high vacuum dehydration region, extended the stroke of high filler paper pulp in forming table, increased dewatering time, improved the dehydrating effect of paper pulp in this region, the high filler web dryness that goes out wet end can reach 20% left and right; Greatly improve traditional paper machine and be unsuitable for the problem that high filler paper pulp is produced;
Because paper machine gravity dehydration of the present invention region lengthens, the change of forming board structure, Wiper blade structure and quantity, solved the deficiency that conventional paper machines gravity dehydration system exists, strengthened the Quick uniform of paper pulp in gravity dehydration region and be shaped and good dehydration;
Due to optimizing structure that forming board in paper machine gravity dehydration system of the present invention adopts, make forming board region in the situation that not exerting an influence paper sheet formation turbulent flow, dewatering time extends, the water separation capability of wet pulp significantly increases, in fast dewatering, fiber rapid subsidence is arranged as orderly l Water Paper page, solved traditional gravity dehydration system when high filler paper pulp is produced, in forming board region, dewatering of pulp speed is slow, the problem that forming effect is poor;
Owing to scraping optimizing structure of water element employing in gravity dehydration system of the present invention, make to scrape water element area and produce the micro-turbulence pulse strengthening, can significantly increase page in the water separation capability in this region and guarantee that paper pulp is shaped fast, uniformly, solved traditional gravity dehydration system when selecting high filler paper pulp to produce, in Wiper blade region, dewatering speed is slow, and paper pulp is defeated and dispersed, poor problem is shaped;
Because the wet vacuum dewatering system overall region of wire-cloths of the present invention lengthens, wet vacuum tank quantity increases, wet vacuum tank region dewatering plate total quantity is increased, add preferred arrangement and the selection of structure, make wet vacuum dewatering system be more suitable for high filler paper pulp in shaping and the low vacuum dehydration of wet end, strengthened the effect of wet end low vacuum dehydration, improve the forming effect that has improved l Water Paper page, be very suitable for high filler (as: active calcium silicate) paper pulp in dehydration and the shaping of wet end;
Because the wet vacuum dewatering system of wire-cloths of the present invention increases through above-mentioned quantity and structure optimization change, the wet vacuum dewatering system of wet end has significantly increased water separation capability on the basis that does not affect high filler paper sheet formation, wet vacuum dewatering system microturbulence and the pulse of paper sheet formation that can not exert an influence under the condition of fast dewatering simultaneously, kept arranging the l Water Paper page of shaping, by even fast dewatering, strengthened the combination between fibrage time simultaneously, further consolidate and promoted the shaping of page, solved high filler paper in the wet vacuum area dehydration of conventional paper machines difficulty, the problem of the too high and forming net serious wear of power consumption,
Because wire-cloths dry vacuum dewatering system of the present invention region lengthens, dry vacuum box number increases, having selected two vacuum chambers of one to two cover and other is all the preferred structure of three vacuum chambers, the dewatering plate total quantity of dry vacuum dewatering system increases, in addition the preferred arrangement of structure, high filler paper pulp is strengthened at shaping and the high vacuum dehydrating effect of wet end, l Water Paper page forming effect has obtained to be improved, and is applicable to the dry vacuum dehydration to high filler (as: active calcium silicate) paper pulp;
Change due to wire-cloths dry vacuum dewatering system structure of the present invention, make dry vacuum dewatering system on the basis that does not affect high filler paper paper sheet formation, significantly increase water separation capability, dry vacuum dewatering system Quick uniform dehydration under higher vacuum simultaneously, microturbulence and the pulse of paper sheet formation can't exert an influence, kept arranging the l Water Paper page of shaping, fast dewatering that simultaneously strong vacuum produces has been strengthened the combination between fibrage time, consolidates and promoted the shaping of page.Solved high filler paper in conventional paper machines dry vacuum region dehydration difficulty, power consumption is too high and the problem of forming net serious wear;
Due to wire-cloths scavenger system of the present invention, two above high-pressure water pipe have been adopted, be arranged in inside and outside multi-cylinder long mesh paper machine forming net, water and forming net that high-pressure spraying parts in the high-pressure water pipe of inside and outside both sides penetrate can be adjusted between 0 ° to 90 °, the utmost point has been realized easily the positive and negative two-way tape of forming net has been pressed to strong flushing, guarantee the clean clean of forming net, solved the problem that traditional wet end scavenger system can only simultaneously rinse;
Due to wire-cloths scavenger system of the present invention, the change of the increase of high-pressure spraying number of components and arrangement and width, guaranteed the effectively clean and drainage of forming net, solved that high filler paper pulp forming net mesh in paper machine production process is easily stopped up by filler and fiber fines and problem that conventional wash system cannot effectively be cleaned; Solved the problem of forming net dehydration difficulty, mesh obstruction and paper sheet formation weak effect in web part of paper machine continuous flow procedure simultaneously;
Improvement due to wire-cloths scavenger system structure of the present invention, not only extended the service life of forming net, and shaping and the dehydration of high filler (as: calcium silicates) paper pulp have been guaranteed, improved wet end at the retention of producing high filler paper, reduce filler loss, further reduced cost;
The present invention, due to the improvement of above-mentioned Wire-cloth structure, has guaranteed shaping and the dehydration of high filler (as: calcium silicates) paper pulp, has guaranteed that the mass dryness fraction that page goes out after wet end reaches 20% left and right; Solved conventional paper machines wet end and be not suitable for high filler paper pulp to produce, rate of water loss is low, and the poor and forming net mesh of fibre forming is the problem such as obstruction easily; The retention of having realized the retention more traditional papermaking filler (as precipitated calcium carbonate, powdered whiting and talcum powder etc.) of wet end in producing high filler paper process has improved 20%-50%; Retention after the online of wet end system filler generally can be kept most of filler in the middle of paper at 60%-80%, reduces filler loss, has further reduced cost.
Change due to the paper machine front baking make-up of the executive personnel of the present invention, drying cylinder quantity increases, drying cylinder is taked single extension and one group of transmission of dividing into groups of 3-6 row, front baking cadre drying capacity is strengthened, be easier to paper in the transmission of oven dry portion and dry, solved the problem that conventional paper machines oven dry portion can not be to the abundant drying and dehydrating of high filler paper pulp;
Because paper machine of the present invention has installed enhancing drying unit (IR bake, steam chest etc.) additional in front baking cadre exit, thereby make paper after going out front baking cadre, carry out forcing to dry, guarantee that paper meets the requirements of mass dryness fraction, simultaneously, also having guaranteed has certain temperature before paper enters applying glue, has improved applying glue quality;
Due to the improvement of front drying system said structure, when having solved high filler paper drying system before conventional paper machines and producing, drying and dewatering is not enough, while entering sizing applicator, and moisture is high affects in applying glue quality, production process the problems such as easily broken paper.
Due to the import department of paper machine post-drying system of the present invention in post-drying portion, installed enhancing drying unit (as: IR bake, steam chest etc.) additional, high filler paper the post-drying region paper before press polish and surperficial sizing material after going out sizing applicator are dehydrated fully, paper expansion and contraction is little, one goes out to be forced oven dry after sizing applicator, guaranteed the sizing material pre-intensification fast of paper surface, accelerate dehydration, make paper when entering post-drying portion, have certain temperature, improved applying glue quality and guaranteed that the mass dryness fraction of finished product paper reaches corresponding requirements; Solved conventional paper machines post-drying system dehydration difficulty, paper mass dryness fraction is not up to standard, thereby affects the defect of the subsequent treatment such as applying glue.
Because paper machine post-drying of the present invention portion leading portion adopts single extension, back segment adopts double extension, the drying cylinder of the double extension of back segment is taked four to five one group, this structural reinforcing the transmission of post-drying portion control, reduced high filler paper in the possibility of this drying area fracture, simultaneously also accelerated the paper after applying glue and entered the rate of water loss of post-drying portion, the mass dryness fraction that makes paper go out oven dry portion reaches 95% requirement.Solved the problem that conventional paper machines can not fully be dried and easily break end the high filler paper of high degree of sizing.
Above-mentioned improvement due to paper machine post-drying system of the present invention, when having solved high filler paper and producing in traditional post-drying system, the drying and dewatering of appearance is not enough, paper too high problems such as easily broken paper that affect in product quality, production process of moisture content while entering coil paper portion.
The Some features that has retained traditional multi-cylinder long mesh paper machine due to paper machine of the present invention is accustomed to, less to the operation occupation mode change of paper machine, is easier to Industry Promotion.
Because paper machine of the present invention is optimized structural design cleverly, compare with traditional paper machine, can be for the production of traditional cultural paper, can be used for again producing and add all types of paper of having filled out active calcium silicate filler, fertile paper mold mainly includes but not limited to following paper kind: the cultural papers such as electro-photographic paper, offset printing paper, light paper, newsprint, the quantitative scope of producing paper is 30-120g/m
2; Solved the problem that traditional paper machine can not carry out fine production to high filler paper pulp.
Because paper machine of the present invention is optimized structural design cleverly, compare with traditional paper machine, the high filler paper that not to be only applicable to take calcium silicates be filler, the structure of its each process components also meets the requirement that the high filler paper of other fillers is produced simultaneously; Solve traditional paper machine and be only suitable for producing non-high filler paper using, can not be suitable for well producing the problem of high filler paper using.
Accompanying drawing explanation
Fig. 1 is traditional paper machine configuration schematic diagram;
Fig. 2 is paper machine configuration schematic diagram of the present invention;
Fig. 3 is the forming table length L of traditional wire-cloths ' schematic diagram;
Fig. 4 is the forming table length L schematic diagram of wire-cloths of the present invention;
Fig. 5 is traditional wire-cloths overall structure schematic diagram;
Fig. 6 is wire-cloths overall structure schematic diagram of the present invention;
Fig. 7 is traditional wire-cloths gravity dehydration system forming board structure enlarged diagram;
Fig. 8 is wire-cloths gravity dehydration system forming board structure enlarged diagram of the present invention;
Fig. 9 is the anhydrous leg Wiper blade of traditional wire-cloths gravity dehydration system structure enlarged diagram;
Figure 10 is the anhydrous leg Wiper blade of wire-cloths gravity dehydration system of the present invention structure enlarged diagram;
Figure 11 is the Wiper blade structure enlarged diagram of gravity dehydration system band freight; (traditional low speed paper machine is identical with a kind of structure of the present invention)
Figure 12 is wet vacuum box structure schematic diagram; (tradition is identical with structure of the present invention)
Figure 13 is traditional wire-cloths dry vacuum dewatering system structural representation;
Figure 14 is wire-cloths dry vacuum dewatering system structural representation of the present invention;
Figure 15 is that traditional wet end scavenger system is arranged on the use view on paper machine;
Figure 16 is that wet end scavenger system of the present invention is arranged on the use view on paper machine;
Figure 17 is traditional paper machine front baking make-up of the executive personnel schematic diagram;
The front drying system structural representation of Figure 18 paper machine of the present invention;
Figure 19 is traditional paper machine post-drying portion structural representation;
The post-drying portion structural representation of Figure 20 paper machine of the present invention;
Figure 21 is traditional wet end scavenger system structural representation;
Figure 22 is the schematic diagram of two high-pressure water pipe structures of wet end scavenger system of the present invention;
In figure: head box 1, wet end 2, press section 3, front baking cadre 4, sizing applicator 5, post-drying portion 6, calender 7, coil paper portion 8, frame 9, drying cylinder 10, watt gram cylinder 11, strengthen drying unit 12, forming net 13, forming board 14, anhydrous leg is scraped water element 15, band water leg is scraped water element 16, wet vacuum tank 17, top net forming section 18, dry vacuum case 19, couch roll 20, high-pressure spray device 21, forming board lath 22, Wiper blade 23, water leg 24, wet vacuum tank vacuum chamber 25, two vacuum chambers 26, breast roll 27, forming table 28, article one, forming board lath 29, dewatering plate 30, drying cylinder driving-chain 31, three vacuum chambers 32, high-pressure water pipe 33,
The length L of the length L of paper machine forming table of the present invention, paper machine forming board integral width A of the present invention, paper machine article one forming board width of sheet D of the present invention, traditional paper machine forming table ', traditional paper machine forming board integral width A ', traditional paper machine forming board width of sheet D ';
Below by accompanying drawing, a kind of multi-cylinder long mesh paper machine structure for the production of high filler paper of the present invention is described in further details in conjunction with the embodiments.
The specific embodiment
Embodiment 1
As shown in Figure 2, a kind of multi-cylinder long mesh paper machine for the production of high filler paper of the present invention, it also has head box 1, wet end 2, press section 3, front baking cadre 4, sizing applicator 5, post-drying portion 6, calender 7, coil paper portion 8, each part mentioned above is sequentially arranged in frame 9, the mode that is connected and installed is identical with traditional paper machine, wherein, head box 1, press section 3, sizing applicator 5, calender 7, coil paper portion 8 are identical with the form structure of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle;
Different from traditional multi-cylinder long mesh paper machine structure of equal fabric width and the speed of a motor vehicle:
One, the structure of wet end 2
As shown in Fig. 1,3,5, the wet end 2 of tradition paper machine has forming net 13, forming table 28 (forming net between breast roll 27 and couch roll 20 is forming table 28), forming board 14, anhydrous leg to scrape water element 15, band water leg is scraped water element 16, wet vacuum tank 17, top net forming section 18, dry vacuum case 19, breast roll 27, couch roll 20, high-pressure spray device 21, conventional connection;
Wire-cloths of the present invention is different from traditional wire-cloths structure:
1, as shown in Figure 2, be arranged on the entire length growth of the wet end 2 in frame 9;
Specifically the forming table in wet end 28 lengthens, comparison diagram 3,4, and comparison diagram 5,6, the distance between breast roll 27 and couch roll 20 increases 10%-50% with respect to breast roll 27 and the distance between couch roll 20 of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle;
Comparison diagram 3,4, the in the situation that of equal fabric width and the speed of a motor vehicle, forming table 28 length L of tradition multi-cylinder long mesh paper machine ' 15 meters if, forming table 28 length L of the present invention can be arbitrary numerical value between 16.5 meters-22.5 meters, can be specifically 16.5 meters, 19.5 meters, 22.5 meters etc.;
2, comparison diagram 5,6, the wet end gravity dehydration system of wire-cloths 2 of the present invention, the wet vacuum dewatering system of wet end, wet end dry vacuum dewatering system, wet end scavenger system, for high filler paper pulp feature, relatively traditional wire-cloths 2 structures have all been done improvement, specifically:
(1) wet end gravity dehydration system
The wet end gravity dehydration system of tradition paper machine:
As shown in Figure 5, forming table 28 orders are scraped water element 15, are with water leg to scrape water element 16 through forming board 14, anhydrous leg;
As shown in Figure 7, article one forming board lath 29 and many forming board laths 22 are parallel to each other and are fixed on forming board 14 tops of basket shape, are close to forming table 28, and width of sheet is all D ', and forming board 14 integral width are A ';
As shown in Figure 9, many Wiper blades 23 that are parallel to each other are fixed on the anhydrous leg of basket-shaped structure and scrape water element 15 tops, and Wiper blade 23 is close to forming table 28; Low speed paper machine Wiper blade 23 is 0 ° with forming table 28 setting angles, and high-speed paper machine Wiper blade 23 is 3 °-5 ° with forming table 28 setting angles, and what Fig. 9 showed is the 0 angle structure that traditional low speed paper machine is installed;
As shown in figure 11, many Wiper blades 23 that are parallel to each other are fixed on band water leg and scrape water element 16 tops, and Wiper blade 23 is close to forming table 28; Low speed paper machine Wiper blade 23 is 0 ° with forming table 28 setting angles, and high-speed paper machine Wiper blade 23 is 3 °-5 ° with forming table 28 setting angles, and what Figure 11 showed is the 0 angle structure that traditional low speed paper machine is installed;
And the change of wire-cloths gravity dehydration system architecture of the present invention is:
As shown in Figure 6, whole wet end gravity dehydration system stroke is longer than the wet end gravity dehydration system of traditional paper machine, the length in wet end gravity dehydration region, the jet nit point flowing from head box 1 crest of weir slurry is to the distance of last a set of Wiper blade end, and traditional multi-cylinder long mesh paper machine of relatively equal fabric width and the speed of a motor vehicle increases 10%-50%;
As shown in Fig. 6,8, traditional fourdrinier wire wire multi-cylinder paper machine of the relatively equal fabric width of the quantity of forming board lath and the speed of a motor vehicle increases 10%-50%, and the width A ' in the relative conventional paper machines forming board of the width A region in forming board region increases 10%-50%;
As shown in Figure 8, in the present embodiment, 9 forming board laths that are parallel to each other (can also be maybe 5,6,7,8,10) are fixed on forming board 14 tops of basket shape, are close to forming table 28;
Article one forming board lath 29 width D near head box 1 crest of weir slurry stream are the widest, and D, between 150mm-300mm, can be specifically: 150mm, 200mm, 250mm, 300mm; The width of other forming board laths 22 is consistent, between 50mm-80mm, can be specifically: 50mm, 60mm, 70mm, 80mm; Installation interval between lath is 60-80mm, can be specifically: 60mm, 70mm, 80mm; Forming board 14 integral width are that traditional fourdrinier wire wire multi-cylinder paper machine forming board 14 integral width A ' of the relatively equal fabric width of A and the speed of a motor vehicle increase 10%-50%;
The structural design of optimizing like this, make the region of forming board formation in the situation that not exerting an influence paper sheet formation turbulent flow, dewatering time extends, significantly increase the water separation capability of wet pulp, and fiber rapid subsidence is arranged as orderly l Water Paper page in fast dewatering, solved conventional paper machines when producing high filler paper in the poor problem of the slow paper forming effect of forming board region dewatering speed.
As shown in Figure 6, paper machine of the present invention is scraped traditional fourdrinier wire wire multi-cylinder paper machine of the relatively equal fabric width of water component population amount and the speed of a motor vehicle and is scraped water component population amount increase 10%-50%, scraping the relative conventional paper machines of the length in water element arrangements region increases 10%-50%, and length refers to that from first, scraping water element termination counts last and only scrape water element end end;
The present invention can have 7-12 to scrape water element, and wherein, 2-4 is that band water leg is scraped water element 16, and other are that anhydrous leg is scraped water element 15;
Scrape installation interval between water element between 200-400mm; Can be specifically: 200mm, 250mm, 300mm, 350mm, 400mm;
The Wiper blade 23 that the anhydrous leg of paper machine of the present invention is scraped on water element 15 can be 0-7 degree with forming table 28 setting angles, be preferably and be greater than 0 degree and be less than 3 degree (can guarantee better paper pulp molding) or be greater than 5 degree and be less than or equal to 7 degree (can improve better paper production speeds), can be specifically 1 degree, 2 degree, 7 degree etc., as shown in figure 10;
The Wiper blade 23 that paper machine band water leg of the present invention is scraped on water element 16 can be also 0-7 degree with forming table 28 setting angles, being preferably and being greater than 0 degree and being less than 3 degree (can guarantee better paper pulp molding) or being greater than 5 degree and be less than or equal to 7 degree (can improve better paper production speeds), can be specifically 1 degree, 2 degree, 7 degree etc.;
When paper machine Wiper blade 23 of the present invention selects 0 to spend with forming table 28 setting angles, the schematic diagram of demonstration is identical with the traditional low speed paper machine shown in Figure 11 (setting angle is 0 degree) structure;
The region of scraping the water element arrangement mode of optimizing like this and setting angle formation can produce the micro-turbulence pulse of enhancing, can significantly increase page in the water separation capability in this region and guarantee that paper pulp is shaped fast, uniformly, solved high filler paper dewatering speed when the Wiper blade regional production of conventional paper machines slow, paper pulp is defeated and dispersed, poor problem is shaped.
(2) the wet vacuum dewatering system of wet end
Different:
As shown in Figure 6, the wet vacuum dewatering system region growing 20%-100% of traditional fourdrinier wire wire multi-cylinder paper machine of the relatively equal fabric width in the wet vacuum dewatering system of web part of paper machine of the present invention region and the speed of a motor vehicle;
Traditional fourdrinier wire wire multi-cylinder paper machine (as shown in Figure 5) of the relatively equal fabric width of the quantity of the wet vacuum tank 17 of paper machine of the present invention and the speed of a motor vehicle increases 20%-100%, as: the quantity of the wet vacuum tank 17 of traditional fourdrinier wire wire multi-cylinder paper machine is 1 cover, and the quantity of the wet vacuum tank 17 of fourdrinier wire wire multi-cylinder paper machine of the present invention of equal fabric width and the speed of a motor vehicle is 2 covers; The quantity of the wet vacuum tank 17 of tradition fourdrinier wire wire multi-cylinder paper machine is 3 covers, and the quantity of the wet vacuum tank 17 of fourdrinier wire wire multi-cylinder paper machine of the present invention of equal fabric width and the speed of a motor vehicle is 6 covers or 5 covers or 4 covers;
Installation interval size between wet vacuum tank 17 can be 100mm-150mm; Can be specifically: 100mm, 120mm, 140mm, 150mm;
As shown in figure 12, the width of a set of wet vacuum tank 17 can be 500mm-700mm, and 4-10 bar dewatering plate 30 can be installed above, and the width of every dewatering plate 30 can be 50mm-80mm, can be specifically: 50mm, 60mm, 70mm, 80mm;
Through said structure, optimize the change that quantity increases, the wet vacuum dewatering system of wet end has significantly increased water separation capability on the basis that does not affect high filler paper sheet formation, wet vacuum dewatering system microturbulence and the pulse of paper sheet formation that can not exert an influence under the condition of fast dewatering simultaneously, kept arranging the l Water Paper page of shaping, by even fast dewatering, strengthen the combination between fibrage time simultaneously, consolidated and promoted the shaping of page.Solved high filler paper in the wet vacuum area dehydration of conventional paper machines difficulty, power consumption is too high and the problem of forming net serious wear;
(3) wet end dry vacuum dewatering system
As shown in figure 13, the wet end dry vacuum dewatering system of conventional paper machines has a dry vacuum case 19, and dry vacuum case 19 tops are provided with dewatering plate 30, and dewatering plate 30 contacts with forming table 28, and dry vacuum case 19 is three vacuum chambers 32;
Comparison diagram 5,6, the difference of web part of paper machine dry vacuum dewatering system of the present invention is: traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum dewatering system region growing 40%-100% of the relatively equal fabric width in wet end dry vacuum dewatering system region and the speed of a motor vehicle;
So, the quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case 19 of the relatively equal fabric width of the quantity of the dry vacuum case 19 in wet end dry vacuum dewatering system and the speed of a motor vehicle increases 50%-100%;
As shown in figure 14, the structure of wet end dry vacuum dewatering system of the present invention is two cover dry vacuum casees 19, and a set of dry vacuum case is three vacuum chambers 32, and another set of dry vacuum case is two vacuum chambers 26;
The increase of the relative conventional dry vacuum system of wet end dry vacuum dewatering system dry vacuum case 19 quantity of the present invention dry vacuum box number, increases the total quantity of dewatering plate 30 on dry vacuum dewatering system of the present invention;
The plate of a set of dry vacuum case is wide is 600mm-900mm, can be specifically: 600mm, 700mm, 800mm, 900mm;
Every cover dry vacuum upper box part can be installed 15-30 bar dewatering plate 30, can be specifically 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30;
The width of every dewatering plate 30 can be 10mm-30mm, can be specifically: 10mm, 20mm, 30mm;
Installation interval between dry vacuum case 19 can be 200mm-300mm, can be specifically: 200mm, 250mm, 300mm;
In dry vacuum dewatering system of the present invention, the vacuum source of dry (height) vacuum tank is vavuum pump, regulates vavuum pump, makes it meet the forced dehydration requirement of high filler paper.
Or: traditional wet end dry vacuum dewatering system has two cover dry vacuum casees 19, is all three vacuum chambers 32, dewatering plate 30 is installed on dry vacuum case 19 and contacts with forming table 28;
So, wet end dry vacuum dewatering system of the present invention is different from traditional dry vacuum system: the structure of wet end dry vacuum dewatering system is that three cover dry vacuum case 19, two cover dry vacuum casees are three vacuum chambers 32, and another set of dry vacuum case is two vacuum chambers 26; Other structures as hereinbefore.Can also be: it is two vacuum chambers 26 that wet end dry vacuum dewatering system of the present invention has three cover dry vacuum case 19, two cover dry vacuum casees, and a set of dry vacuum case is three vacuum chambers 32; Other structures as hereinbefore.Can also be: it is that three vacuum chamber 32, two cover dry vacuum casees are two vacuum chambers 26 that wet end dry vacuum dewatering system of the present invention has quadruplet dry vacuum case 19, two cover dry vacuum casees; Other structures as hereinbefore.
Or: wet end dry vacuum dewatering system of the present invention is to consist of 2-4 cover dry vacuum case 19; Wherein, a set of or two cover dry vacuum casees are two vacuum chambers, and other dry vacuum case is all three vacuum chambers.As: the quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case 19 is 1 cover, and the quantity of the fourdrinier wire wire multi-cylinder paper machine dry vacuum case 19 of the present invention of equal fabric width and the speed of a motor vehicle is 2 covers; The quantity of tradition fourdrinier wire wire multi-cylinder paper machine dry vacuum case 19 is 3 covers, and the quantity of the fourdrinier wire wire multi-cylinder paper machine dry vacuum case 19 of the present invention of equal fabric width and the speed of a motor vehicle is 4 covers, 5 covers or 6 covers.
Through above-mentioned improvement, the wet end dry vacuum dewatering system of paper machine of the present invention has significantly increased water separation capability on the basis that does not affect high filler paper sheet formation, Quick uniform dehydration under higher vacuum, microturbulence and the pulse of paper sheet formation can't exert an influence, kept arranging the l Water Paper page of shaping, fast dewatering that simultaneously strong vacuum produces has been strengthened the combination between fibrage time, consolidate and promoted the shaping of page, solved high filler paper in the dry vacuum region (as shown in Figure 5) of conventional paper machines dehydration difficulty, the problem of the too high and forming net serious wear of power consumption.
(4) wet end scavenger system
As shown in Figure 15,21, the wet end scavenger system of conventional paper machines only has a high-pressure water pipe 33, one row's high-pressure spray devices 21 to be connected in high-pressure water pipe 33, is arranged on multi-cylinder long mesh paper machine forming net 13 outsides, forming net 13 is carried out to front and clean;
Wet end scavenger system on paper machine of the present invention, high-pressure water pipe 33 can have two (as shown in figure 22), or three, or four, or many, the water inlet of every high-pressure water pipe 33 can link together, also can be that every high-pressure water pipe 33 is all independent water inlet, in every high-pressure water pipe 33, be all connected to row's high-pressure spray device 21, high-pressure spray device 21 can be high-pressure spraying hydraulic giant, or adjustable high-pressure spraying water pipe etc.;
High-pressure water pipe 33 is divided into two groups, and one group is arranged on multi-cylinder long mesh paper machine forming net 13 inner sides, and another group is arranged on multi-cylinder long mesh paper machine forming net 13 outsides;
If high-pressure water pipe 33 is two water pipes, as shown in Figure 16,22, a high-pressure water pipe 33 is arranged on multi-cylinder long mesh paper machine forming net 13 inner sides, and another root high-pressure water pipe 33 is arranged on multi-cylinder long mesh paper machine forming net 13 outsides;
If high-pressure water pipe 33 is three water pipes, can be: a high-pressure water pipe 33 is arranged on multi-cylinder long mesh paper machine forming net 13 inner sides, two high-pressure water pipe 33 be arranged on multi-cylinder long mesh paper machine forming net 13 outsides; Two high-pressure water pipe 33 are arranged on multi-cylinder long mesh paper machine forming net 13 inner sides, and a high-pressure water pipe 33 is arranged on multi-cylinder long mesh paper machine forming net 13 outsides;
If high-pressure water pipe 33 is four water pipes, can be: two high-pressure water pipe 33 are arranged on multi-cylinder long mesh paper machine forming net 13 inner sides, two high-pressure water pipe 33 be arranged on multi-cylinder long mesh paper machine forming net 13 outsides;
Or, other mounting means that divide into groups;
High-pressure spray device 21 quantity of traditional multi-cylinder long mesh paper machine of the relatively equal fabric width of high-pressure spray device 21 and the speed of a motor vehicle increase 200%-500%;
The emphasis cleaning positions different at forming net 13 are all provided with high-pressure spray device 21, include but not limited to the position such as breast roll 27 places, couch roll 20 places, deflector roll place of forming net 13;
High-pressure spray device 21 is fixed with the setting angle of high-pressure water pipe 33, and the water outlet of high-pressure spray device 21 and forming net 13 can be adjusted between 0 ° to 90 °; The hydraulic pressure of high-pressure spray device 21 can be between 2.0-3.0Mpa;
The hydraulic pressure of high-pressure spray device 21 adopts the pulsed of changeable pressure to rinse in pressure limit, and spray angle is taked reciprocally swinging according to the variation of spray pressure in angle excursion, thereby strengthens developing result and rate of water loss;
The structure setting that wet end scavenger system of the present invention is optimized, the increase of arrangement and quantity, control spray hydraulic pressure and clean angle, can realize wet end scavenger system forming net 13 is carried out to forward and reverse clean cleaning, guarantee that fiber and tiny filler can squeeze out and be removed and bring white-water system into by water under high pressure in forming net 13 meshes, developing result and rate of water loss have been strengthened, guaranteed the clean and drainage of forming net 13, solved that high filler paper pulp forming net 13 meshes in conventional paper machines production process are easily stopped up by filler and fiber fines and scavenger system cannot effectively carry out clean problem.
Two, the change of front drying system structure
The front drying system structure of conventional paper machines, as shown in Figure 1, only has front baking cadre 4;
As shown in figure 17, front baking cadre 4 structural configuration is double extension drying cylinder 10, and taking three row drying cylinders 10 of double extension is one group, by drying cylinder driving-chain 31, connects, and carries out frequency variable synchronous transmission;
Before paper machine of the present invention, the change of drying system structure is:
Front drying system, it has front baking cadre 4 and strengthens drying unit 12;
As shown in Figure 1, 2, drying system region growing before the tradition of the relatively equal fabric width in front drying system region and the speed of a motor vehicle;
The total quantity of the more equal fabric width of total quantity of front baking cadre 4 drying cylinder 10 and traditional front baking cadre's drying cylinder 10 of the speed of a motor vehicle increases 10%-50%;
As shown in figure 18, front baking cadre 4 drying cylinder 10 adopts monolayer alignment form, every drying cylinder 10 bottoms coordinate one watt gram of cylinder 11 to strengthen dehydration, drying cylinder 10 takes 3 to 6 to be divided into one group (what in Figure 18, show is that 5 drying cylinders are classified one group as), front baking cadre 4 can have 6-12 group, according to different paper product requirements, can select 6 groups, 7 groups, 8 groups ..., 10 groups, 11 groups, 12 groups, by drying cylinder driving-chain 31, connect, carry out frequency variable synchronous transmission;
Drying cylinder 10 and Wa Ke cylinder 11 all dispose dryer felt or dry net, and dryer felt (net) is leading paper web around drying cylinder 10,11 operations of watt gram cylinder, and paper web is pressed on to drying cylinder 10, watt gram cylinder 11 surfaces, carries out contact drying;
Drying cylinder 10 under this arrangement architecture is control effectively, guarantee every group of drying cylinder synchronous operation, can greatly reduce the probability that production process is interrupted paper; The temperature of controlling drying cylinder 10, makes paper in drying cylinder traveling process, have best evaporation efficiency and best dehydrating effect;
As shown in Fig. 2,18, described in paper machine of the present invention before drying system in front baking cadre 4 exits, have the drying unit 12 of enhancing;
Strengthening drying unit 12 can be that far-infrared baking oven, steam chest etc. are strengthened drying plant.
Can also be: drying system before paper machine of the present invention, it has front baking cadre 4, and front baking cadre 4 structure is identical with foregoing, does not just strengthen drying unit 12.
Above-mentioned improvement to front drying system, when having solved high filler paper drying system before conventional paper machines and producing, drying and dewatering is not enough, while entering sizing applicator 5, and moisture is too high affects in applying glue quality, production process the problems such as easily broken paper.
Three, the change of post-drying Account Dept structure
The post-drying system of conventional paper machines, as shown in Figure 1, only has post-drying portion 6, and as shown in figure 19, the arrangement of post-drying portion 6 adopts the double extension of drying cylinder 10, and four row drying cylinders 10 of double extension are one group, by drying cylinder driving-chain 31, connects, and carries out frequency variable synchronous transmission;
The change of paper machine post-drying system architecture of the present invention is:
As shown in Figure 2, paper machine post-drying system of the present invention, it has the drying unit 12 of enhancing and post-drying portion 6; Strengthen drying unit 12 in the porch of post-drying portion 6;
Strengthening drying unit 12 can be that far-infrared baking oven, steam chest etc. strengthen drying plant; Strengthening drying unit 12 can force paper to dry after going out sizing applicator 5, the sizing material that guarantees paper surface heats up in advance fast and accelerates dehydration, while making paper enter post-drying portion 6, there is certain temperature, therefore can improve applying glue quality and guarantee that the mass dryness fraction of finished product paper reaches corresponding requirements.
Post-drying system shown in comparison diagram 1,2, the conventional paper machines post-drying system realm of the relatively equal fabric width of post-drying system of the present invention and the speed of a motor vehicle increases;
The total quantity of the conventional paper machines post-drying portion drying cylinder 10 of the more equal fabric width of total quantity of the drying cylinder 10 of post-drying portion 6 and the speed of a motor vehicle increases 20%-50%;
As shown in figure 20, drying cylinder 10 leading portions in post-drying portion 6 are single hanging hang structures, every drying cylinder 10 of the single extension of leading portion coordinates one watt gram of cylinder 11, strengthen dehydration, 3 to 6 drying cylinder rows of leading portion are one group (4 drying cylinders of leading portion that show in figure are one group), according to different paper product requirements, can select 1 to 5 group to form leading portion, as select 1 group, 2 groups, 3 groups, 4 groups, 5 groups to form leading portion; Back segment is the double hanging hang structure of upper and lower two-layer drying cylinder 10, the same with the double hanging hang structure of drying cylinder of the post-drying portion of conventional paper machines, 4 to 5 drying cylinder rows of back segment are one group (4 drying cylinders of back segment that show in figure are one group), equally, according to different paper product requirements, can select 3 to 8 groups to form back segment, as select 3 groups, 4 groups, 5 groups, 6 groups, 7 groups, 8 groups to form back segment;
Above-mentioned leading portion drying cylinder 10, a watt gram cylinder 11 all dispose dryer felt or dry net, and dryer felt (net) is leading paper web around drying cylinder 10,11 operations of watt gram cylinder, and paper web is pressed on to drying cylinder 10, watt gram cylinder 11 surfaces, carries out contact drying; Back segment drying cylinder 10 adopts Dual-layer spread pattern, and upper and lower two-layer drying cylinder 10 all disposes dryer felt or dry net, and dryer felt (net) is leading paper web around drying cylinder 10 operations, and paper web is pressed on to drying cylinder 10 surfaces, carries out contact drying; By drying cylinder driving-chain 31, connect, carry out frequency variable synchronous transmission, reduce the probability that production process is interrupted paper;
The temperature of controlling drying cylinder 10, makes paper in drying cylinder traveling process, have best evaporation efficiency and best dehydrating effect.
Can also be: paper machine post-drying system of the present invention, it only has post-drying portion 6, and the structure of post-drying portion 6 is identical with aforementioned content, does not just strengthen drying unit 12;
Above-mentioned improvement to post-drying system, when drying and dewatering scarce capacity, the finished product paper having occurred when having solved high filler paper and producing in conventional paper machines post-drying system enters coil paper portion 8, moisture is high affect product quality, production process in the problem such as easily broken paper.
Four, the change of frame 9 structures
As shown in Figure 2, frame 9 entire length of paper machine of the present invention can increase 8-25m with respect to frame 9 entire length of traditional multi-cylinder long mesh paper machine (as shown in Figure 1) of equal fabric width and the speed of a motor vehicle; Increasing length is preferably 15-17 rice; Best increase length is 16.2 meters; Concrete increase length can also be 8m, 9m, 10m, 11m, 12m, 13m, 14m, 15m, 16m, 17m, 18m, 19m, 20m, 21m, 22m, 23m, 24m, 25m;
The installation site length of wet end 2 has increased 4-6m with respect to the installation site of traditional multi-cylinder long mesh paper machine wet end 2 of equal fabric width and the speed of a motor vehicle; Best increase length is 5 meters; Concrete increase length can also be 4m, 4.5m, 5.5m, 6m;
Installation site at sizing applicator 5 is forward and backward, can reserve respectively the installation site that strengthens drying unit 12;
The integral installation position length of front drying system can increase 5-15m with respect to the front drying system integral installation position length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; Increasing length is preferably 8-11 rice; Best increase length is 10 meters; Concrete increase length can also be: 5m, 6m, 7m, 8m, 9m, 9.5m, 10.5m, 11m, 12m, 13m, 14m, 15m;
The integral installation position length of post-drying system can increase 1-1.5m with respect to the post-drying entire system installation site length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; Best increase length is 1.2 meters.Concrete increase length can also be: 1m, 1.1m, 1.3m, 1.4m, 1.5m.
The whole transmission of paper machine of the present invention be by each region drive disk assembly independently drive apparatus provide, DCS system Dui Ge distributional drive mechanism by paper machine system carries out integral body control and coordinates again, reach the stable control to the transmission of paper machine, consistent with traditional paper machine control mode;
Paper machine of the present invention does not carry out large change to the order of each system of paper machine and arrangement mode, arrange still and to arrange by the traditional order of wet end, press section, front drying system portion, sizing applicator, post-drying Account Dept, calender, reel machine, install and production sequence is followed the mode of conventional paper machines too.
Content of the present invention is not limited in content described in the present embodiment.
Applied specific case herein structure of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand core concept of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. the multi-cylinder long mesh paper machine for the production of high filler paper, it has head box (1), wet end (2), press section (3), front baking cadre (4), sizing applicator (5), post-drying portion (6), calender (7), coil paper portion (8), it is upper that each part mentioned above is sequentially arranged on frame (9), it is characterized in that: the entire length of frame (9) increases 8-25 rice with respect to frame (9) entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end (2) increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end (2) of equal fabric width and the speed of a motor vehicle.
Or: the entire length of frame (9) increases 8-25 rice with respect to frame (9) entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end (2) increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end (2) of equal fabric width and the speed of a motor vehicle; The length of front drying system portion increases 5-15 rice with respect to front drying system minister's degree of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle.
Or: the entire length of frame (9) increases 8-25 rice with respect to frame (9) entire length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of wet end (2) increases 4-6 rice with respect to the length of traditional multi-cylinder long mesh paper machine wet end (2) of equal fabric width and the speed of a motor vehicle; The length of front drying system portion increases 5-15m with respect to front drying system minister's degree of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle; The length of post-drying Account Dept increases 1-1.5m with respect to the post-drying Account Dept length of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle.
2. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as claimed in claim 1, is characterized in that: the length L of the forming table (28) in wet end (2) increases 10%-50% with respect to forming table (28) the length L ` of traditional multi-cylinder long mesh paper machine of equal fabric width and the speed of a motor vehicle.
3. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as claimed in claim 2, it is characterized in that: traditional fourdrinier wire wire multi-cylinder paper machine of the relatively equal fabric width of forming board lath (22) quantity on the forming board (14) in wet end (2) and the speed of a motor vehicle increases 10%-50%, the width A` in traditional fourdrinier wire wire multi-cylinder paper machine forming board (14) region of the relatively equal fabric width of the width A in forming board (14) region and the speed of a motor vehicle increases 10%-50%.
4. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as claimed in claim 3, it is characterized in that: the 5-10 bar forming board lath being parallel to each other is fixed on forming board (14) top, article one forming board lath (29) width of close head box (1) is between 150mm-300mm, the width D of other forming board laths (22) equates, between 50mm-80mm.
5. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as claimed in claim 4, it is characterized in that: traditional fourdrinier wire wire multi-cylinder paper machine quantity of the relatively equal fabric width of the quantity of scraping water element in wet end (2) and the speed of a motor vehicle increases 10%-50%, and the relative conventional paper machines of length of scraping water element arrangements region increases 10%-50%.
6. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as described in claim 2 or 3 or 4 or 5, is characterized in that: traditional fourdrinier wire wire multi-cylinder paper machine quantity of the relatively equal fabric width of the quantity of the upper wet vacuum tank (17) of wet end (2) and the speed of a motor vehicle increases 20%-100%.
7. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as described in claim 2 or 3 or 4 or 5 or 6, is characterized in that: traditional multi-cylinder long mesh paper machine number of the relatively equal fabric width of the quantity of the upper high-pressure spraying hydraulic giant (21) of wet end (2) and the speed of a motor vehicle increases 200%-500%.
8. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, is characterized in that: front baking cadre's (4) the more equal fabric width of drying cylinder (10) quantity and conventional paper machines front baking cadre (4) drying cylinder (10) of the speed of a motor vehicle increase 10%-50%.
9. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as claimed in claim 8, is characterized in that: front baking cadre's (4) exit is provided with and strengthens drying unit (12).
10. a kind of multi-cylinder long mesh paper machine for the production of high filler paper as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, is characterized in that: import department of post-drying portion (6) is provided with and strengthens drying unit (12).
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| CN104088189A (en) * | 2014-06-13 | 2014-10-08 | 浙江兰良实业有限公司 | Fourdrinier machine |
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