CN87102984A - Horizontally arranged multiple fourdrinier paper machine - Google Patents
Horizontally arranged multiple fourdrinier paper machine Download PDFInfo
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- CN87102984A CN87102984A CN 87102984 CN87102984A CN87102984A CN 87102984 A CN87102984 A CN 87102984A CN 87102984 CN87102984 CN 87102984 CN 87102984 A CN87102984 A CN 87102984A CN 87102984 A CN87102984 A CN 87102984A
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- roll
- felt
- wet end
- paper
- starching
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Abstract
Fourdrinier machine, starching and moulding are made reverse layout with the felt running, and forming web and felt press by last lower couch (roll) pressure, and wet web is licked and is moved, the running of felt traction forming web, table roll replaces breast roll, breast roll double as wire roll and idler roller.Papermaking thickness amplitude is big, and is wide in variety, the paperboard of energy production kilopond.
Description
Technical field that the present invention belongs to:
The invention belongs to fourdrinier wet end structure and multilength net machine wet end layout.
The prior art background:
Produce ground paper, for example paperboard generally adopts multi-wire machine.For example many cylinder machine or double-long net machine, four fourdriniers etc.(compile in collaboration with by Huanan (South China) Polytechnic College, Tianjin Light Industry College at " pulp and paper industry machinery and equipment " for above-mentioned type, in November, 1981 publication of light industry publishing house) and in " paper machine-theory structure and design " (Mabron is write, in November, the 1985 front page second impression of light industry publishing house) all elaborate.Adopt many cylinder machine, turn round, often occur the phenomenon that slurry is fallen in the wet web undercut when therefore manufacturing paper with pulp ground paper because wet web hangs by the feet to be attached on the band paper felt.Shortcoming on this model structure makes many cylinder machine can not produce the big ground paper of grammes per square metre.When another general shortcoming of cylinder machine was a Web forming on the forming device for cylinder machine, mostly fiber was vertical arrangement, and the lateral pull of paper is poor.Fiber alignment situation when fourdrinier can improve sheet forming, the holder of band paper felt is carried the wet web running and is not also produced undercut and fall to starch phenomenon, mode is guided felt into from forming net but wet web adopts " traction " more, produce stretching action inevitably, can destroy the fiber interweaving state of wet web, influence physical performance of paper.Present multilength net machine makes the paper machine configuration complexity because the vertical stack alignment placement is made in the restriction of wet end structure more, and the quantity of wet end also is restricted, can not the big paperboard of production grammes per square metre.
The purpose of invention:
The objective of the invention is to overcome the shortcoming of present cylinder machine and fourdrinier, change the structure of fourdrinier wet end, make it to ensure the stable of wet web fiber condition and can be applicable to horizontally disposed some wet ends on band paper felt, production thickness amplitude is big, the paper of many kinds, the paperboard that especially ultra-thin paper and kilopond are above.
The content of invention:
The present invention is a horizontally arranged multiple fourdrinier paper machine, also can make single fourdrinier.The fourdrinier wire layout is on band paper felt, is preface according to the felt rotation direction, horizontally arranges 1 or some director's net wet ends with certain spacing.The structural design of wet end is: head box starching and shaping direction and the reverse layout of band paper felt running moving direction.Forming net and felt are borrowed the pressure between the lower couch (roll) below the felt of the top couch (roll) of wet end and correspondence position and are pressed mutually.Pressure between the upper and lower couch roll can adopt fixedly top couch (roll), and the mode that supports lower couch (roll) with heavy thallium lever produces and regulates.Forming net does not have main drive, relies on the pressure effect between the upper and lower couch roll, is with paper felt to draw, and paper felt going along with turns round and moving the commentaries on classics.The wet web that has been shaped on the forming net is licked by forming net at the place of pressing of upper and lower couch roll and is moved on the felt, or licks and move on the wet web that felt accepted by the front fourdrinier wire.For prevent to be positioned at directly over the felt net part forming partly and clean plain boiled water partly and drop on the wet web, being shaped and cleaning forming net etc. in starching, dehydration produces plain boiled water drip parts, is equipped with and connects the various devices that draw plain boiled water.Every director of paper machine of the present invention nets parking, can break away from and is with contacting of paper felt, can not influence other fourdrinier wire and complete machine and remain in operation.
The advantage and the good effect of invention:
Wet end characteristics of the present invention belong to the fourdrinier wire type, thereby have the advantage of fourdrinier.
Many wet ends of the present invention are horizontal, and are simpler than the wet end layout of the double-long net machine of present vertical stack layout or four fourdriniers, make to install and use easy to operate.Complete machine can be settled some wet ends as required, and number is not limited by the wet end distribution form, and stops any director's net and all do not influence all the other fourdrinier wires and continue operation, and performance obviously is better than existing various multilength net machine.
Wet end starching of the present invention and shaping direction make complete machine take up an area of the length space that director net has been saved in the space with the reverse layout of band paper felt rotation direction.This wet end structure need not paper injection, moves on the band paper felt and wet web is directly licked, by the felt delivery.Wet web does not have the traction section of support, has avoided the wet web stretching, does not destroy the established fiber interweaving state of wet web, thereby guarantees paper quality.This structure can be produced ultra-thin kraft capacitor paper on single fourdrinier, at ground paper that can be more than the production kilopond on the multilength net machine.
Wet end running of the present invention is by the traction of band paper felt, and the no main drive gear of wet end itself is simplified the wet end structure and can be solved many wet ends and band paper felt run-in synchronism problem preferably.
To the description of the drawings of the present invention:
Each partly illustrates title:
Forming rolls (claiming table roll again) 1,1; Table roll 1,2; Forming net 1,3; Top couch (roll) 1,4; Lower couch (roll) 1,5; Wite roll 1,6 breast rolls (making idler roller again) 1,7 woollen blankets 1,9; Give pressure roller 1,10; Upper press 1,11; Lower press (claiming drive roll again) 1,12; Suction flat box 1,13; Blanket tension roller 1,14; Woollen blanket deflector roll 1,15.Felt roll 1,8.
Accompanying drawing 2 is wet end water container schematic diagrames.
Each partly illustrates title:
Accompanying drawing 3 is wet end breast roll position and tensioning apparatus schematic diagram.
Each partly illustrates title:
Bearing upper cover 3,1; Slip step 3,2; Slideway base 3,3; A sheep eye trapezoidal screw 3,4; Split nut 3,5; Single direction thrust ball bearing 3,6; Crossbeam 3,7.
Accompanying drawing 4 is general breast roll and head box mutual alignment schematic diagram.
Accompanying drawing 5 is that the present invention replaces breast roll and head box mutual alignment schematic diagram with table roll.
Accompanying drawing 6 to accompanying drawing 9 is that net part forming multifoil shoe generalized section and multifoil shoe are changed schematic diagram in the assembling of forming table portion.
Each partly illustrates title:
Accompanying drawing 10 is head box vertical, horizontal displacement adjustment figure.
Each several part diagram title:
Head box lateral displacement manual adjusting device 5,1; Head box frame 5,2; Leading screw 5,4 is adjusted in support 5,3 head box length travels.
Accompanying drawing 11 is shaft side figures of the present invention.
Inventive embodiment:
Mode of the invention process is shown in Fig. 1～10.
Can arrange 1 to 8 director's net on a paper machine, the fourdrinier wire layout as shown in Figure 1.
Every director nets selective a kind of optimum structure mode:
Replace breast roll to support the starching position of forming net with common table roll.The breast roll position is below the case bar of dehydration position, as Fig. 4, shown in Figure 5.Table roll radius ratio breast roll radius is little, therefore can shorten the distance of mouth spray to jet nit point.S＞S ' as shown.Slurries have little time to form the slurry bundle and just fall on the forming net under the state that interweaves, the fibre structure of paper web is more even.The breast roll that radius is big can substitute wire roll.Breast roll is contained on the slip step 3,2 as shown in Figure 3 and connects with tensioning apparatus, but breast roll double as idler roller also, and the many usefulness of a roller make the wet end simple structure, compact in design.
The breast roll position is placed on the bottom, can also its with the table roll that supports forming net between leave and arrange the position of spraying the net scavenge pipe, the net that cleaned directly arrives the starching position, helps guaranteeing web quality.
The multifoil shoe that use one group or some groups at the dehydration position that is shaped, combines as a whole replaces the vacuum tank under table roll and the forming net, as shown in Figure 9.If then the profile physical dimension of every group of multifoil shoe is identical more than two groups, can on the wet end use location, change mutually, also can have the different multifoil shoe of dehydration rate and exchange use.The present embodiment is designed to 7 groups of multifoil shoe, and each is organized the profile physical dimension and is long L=mm, high H=mm, and wide and forming net fabric width adapts.The multifoil shoe structure is shown in Fig. 6～9.Fig. 6, Fig. 8 are a kind of of middle all the other 5 groups of interconvertible multifoil shoe for two groups of multifoil shoe of dehydration position head, terminal usefulness, Fig. 7.The left side fluting that the difference of Fig. 6～8 three group multifoil shoe profile has only lower end, the outside to have is slotted as Fig. 8 as the right side that Fig. 6 has, and the both sides fluting that has is as Fig. 7.These differences only are to adapt to the needs that present embodiment requirement multifoil shoe is installed on wite frame, irrelevant in dehydration.
Several groups of multifoil shoe in interconvertible centre have two kinds of versions at least, and difference is dewatering plate spacing difference, number difference, thereby dehydration rate difference.The structural principle unanimity of each multifoil shoe is as Fig. 6～8.Multifoil shoe can integral production, as integral molded plastic, die casting etc.; Also can be decomposed into several parts combinations makes.Decompose to make and can take following proposal: every group of multifoil shoe be by left and right each clamping plate, have between the clamping plate some apart from one another by main dividing plate 4,5 and spacer blocks 4,4 or 4,10 one constitute.The difference of clamping plate and main dividing plate 4,5 is that there is groove and the previously described mounting groove of placing the clamping screw nut in the clamping plate outside.The whole length size of clamping plate is consistent with main baffle dimensions.The thickness of spacer blocks has two kinds at least, and a kind of spacer blocks 4,4 with head end multifoil shoe Fig. 6 use is identical, for example Fig. 7.The spacer blocks 4,10 that another kind of and terminal multifoil shoe Fig. 8 uses is identical, and accompanying drawing is expression not, but can imagine out at an easy rate from the structure of Fig. 8.The plane geometric shape of spacer blocks has two kinds, and a kind of is median septum piece 4,4a or 4,10a, and another kind is side partition piece 4,4b or 4,10b, they in the position in the multifoil shoe shown in Fig. 9 multifoil shoe 4,16.Between adjacent two main dividing plates (or clamping plate) one rows spacer blocks comprises two side partition pieces 4,4b or 4,10b on both sides and some main spacer blocks 4,4a or 4,10a.Between adjacent spacer blocks, drainage gap is arranged, shown in arrow below Fig. 9 multifoil shoe 4,16.The monolithic dewatering plate connects formation by a slice dehydration scraper plate 4,1 usefulness sunk screw 4,3 and main dividing plate 4,5 or clamping plate 4,2,4,6,4,8,4,9, and basic specification unanimity is convenient to processing, assembling and maintenance and is changed.According to the principle of the present embodiment, multifoil shoe can be 3 groups, 4 groups, 5 groups, 6 groups or more groups.The distance between plates of multifoil shoe is from two or more can be arranged.Adopt the present embodiment to replace table roll, fundamentally eliminated the water dumping phenomenon of table roll with multifoil shoe; The vacuum tank of the negative pressure off the net that replace to be shaped can reduce the running resistance of forming net, is convenient to the running of felt traction forming net, and can prolongs the service life of net.The multifoil shoe that the transposing dewatering plate is different at interval can be grasped dehydration rate, and the control waterline makes wet end have the bigger production scope of application.Multifoil shoe has the supporting role of table roll to forming net concurrently, has improved the effective rate of utilization of wet end parts.
Prevent the plain boiled water drip to the wet web of band paper felt support, can take every water receiving design as shown in Figure 2.The wedged bottom drip tray 2,2 of sealing is installed on the case bar of starching below the dehydration position, the schematic perspective view of drip tray 2,2 is arranged in Fig. 9.Semihard glue diversion scraper plate 2,3 is installed at the top couch (roll) place, and water receiving bucket 2,4, dihedral drip tray 2,5 are installed semihard glue diversion scraper plate 2,7, drip tray 2,8, wooden scraper 2,9 and water receiving bucket 2,10 at the breast roll place.
Horizontal and vertical rackwork is installed, as shown in figure 10 on the tank tower of every director's net head box and support.Laterally the effect of rackwork is to make the accurately contraposition of the wet web of many forming nets, and the trimming overlaps, and guarantees paper quality.
The lower couch (roll) 1,5 of every wet end top couch (roll) correspondence adopts heavy thallium lever pressure-regulating device or other form adjustable pressure device to regulate its pressure to top couch (roll).When stopping using a director to net, loosen lower couch (roll), lift top couch (roll), make felt in the gap of last lower couch (roll), walk running, do not influence the running of complete machine and other wet end.Both be convenient to the wet end maintenance, also be convenient to many kinds paper of manufacturing paper with pulp.
Claims (7)
1, a kind of fourdrinier machine has one or some wet ends, it is characterized in that described wet end position on band paper felt, is preface, at a certain distance, horizontally according to the felt moving direction; Described wet end starching and shaping direction and the reverse layout of felt rotation direction; Described wet end does not have main drive gear, and forming net and described band paper felt borrow defeating of upper and lower couch roll to lean on, and the wet web on the forming net place of pressing is certainly licked on the wet web that moves to felt or oneself carrying of felt, and forming net is subjected to felt traction running; Connect below described wet end starching, dehydration and the cleaning position and draw the plain boiled water device, prevent that the plain boiled water drip is to band paper felt.
2, paper machine according to claim 1, it is characterized in that below on record of the described wet end breast roll position, break away from starching and shaping active section, alternative wire roll also connects the tensioning apparatus idler roller effect of having held concurrently, and described wet end starching position is supported by common table roll.
3, paper machine according to claim 1 and 2 is characterized in that described wet end dewater unit is made of one group or several groups of multifoil shoe, and described multifoil shoe profile physical dimension is identical, can change mutually on its wet end dehydration location; Described multifoil shoe is become one by some dewatering plates and spacer blocks separately and is constituted; Described dewatering plate is made of clamping plate or main dividing plate and the dehydration scraper plate that combines as a whole in the top; Described spacer blocks has two or more thickness, and every group of multifoil shoe used the spacer blocks of same thickness, uses the dewatering plate interval difference of the multifoil shoe of different-thickness spacer blocks, the quantity difference; Described spacer blocks has two kinds of side partition piece and median septum pieces, between two side partition pieces between per two dewatering plates and some median septum pieces drainage gap is arranged; Described multifoil shoe also can be by dewatering plate and spacer blocks integral production.
4, paper machine according to claim 2 is characterized in that being equipped with the shower that cleans forming net above the forming net between the table roll at described breast roll and starching position.
5, according to claim 1,2,3 or 4 described paper machines, it is characterized in that described connecing draw the plain boiled water device and be: the sealing wedged bottom drip tray of starching below the dehydration shaping, the diversion scraper plate at top couch (roll) place and diversion bucket that scoops out mutually and dihedral drip tray, the diversion scraper plate at breast roll place and scoop out mutually connect diversion dish and the water receiving bucket that intercepts water scraper and scoop out mutually.
6,, it is characterized in that on described wet end head box tank tower and the support horizontal and vertical rackwork being arranged according to the described paper machine of claim 1～5.
7, paper machine according to claim 1, it is characterized in that described lower couch (roll) tipping is for example weighing on thallium lever pressure-regulating device or other form pressure-regulating device, loosen pressure, when lifting top couch (roll), band paper felt can be walked running in the gap of upper and lower couch roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102984A CN87102984B (en) | 1987-04-25 | 1987-04-25 | Horizontally arranged multiple fourdrinier paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102984A CN87102984B (en) | 1987-04-25 | 1987-04-25 | Horizontally arranged multiple fourdrinier paper machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102984A true CN87102984A (en) | 1988-03-30 |
| CN87102984B CN87102984B (en) | 1988-05-11 |
Family
ID=4814201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87102984A Expired CN87102984B (en) | 1987-04-25 | 1987-04-25 | Horizontally arranged multiple fourdrinier paper machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87102984B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704313A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | High-speed reverse-net multi-roller drying special type papermaking technology |
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
| CN103669097A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Multi-cylinder long mesh paper machine used for producing high-filler paper |
-
1987
- 1987-04-25 CN CN87102984A patent/CN87102984B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704313A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | High-speed reverse-net multi-roller drying special type papermaking technology |
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
| CN102704313B (en) * | 2012-06-08 | 2015-06-10 | 方汉佐 | High-speed reverse-net multi-roller drying special type papermaking technology |
| CN102704314B (en) * | 2012-06-08 | 2016-06-08 | 方汉佐 | The dry reverse forming net device of special paper of inverse net multiple roll at a high speed |
| CN103669097A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Multi-cylinder long mesh paper machine used for producing high-filler paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87102984B (en) | 1988-05-11 |
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