CN107354795B - The double net forming techniques of paper web - Google Patents
The double net forming techniques of paper web Download PDFInfo
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- CN107354795B CN107354795B CN201710820499.4A CN201710820499A CN107354795B CN 107354795 B CN107354795 B CN 107354795B CN 201710820499 A CN201710820499 A CN 201710820499A CN 107354795 B CN107354795 B CN 107354795B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/10—Wire-cloths
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0272—Wet presses in combination with suction or blowing devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
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Abstract
The present invention provides a kind of double net forming techniques of paper web, aim to solve the problem that the technical issues of bubble is to the influence generated in paper-making process in slurry, including feeding process, material feeding process, rub material process with the hands, water squeezing process, the process that absorbs water and forming output process, by the way that traditional paper technology is improved, after carrying out slurry injection to the first forming net and the second forming net, material process is rubbed with the hands by increasing, the bubble in slurry is rubbed by rubbing slurry, the gravity of slurry itself is utilized simultaneously, subsequent slurry generates compacting effect to the slurry of early period, the quality of paper web is set to get a promotion.
Description
Technical field
The present invention relates to paper webs, cardboard forming technical field, the specially double net forming techniques of paper web.
Background technique
When manufacturing paper by aqueous wood fibre, shaped on forming net such as fourdrinier wire part or in double nets
Initial formation is carried out in for example so-called interval former of device, wherein being closed with mobile a pair of formed relative to net ring of same direction
Intermittently, jet of stock is supplied in the interval from slurry box hence into the space forming net；In order to start to shape
Paper web is removed by leaving the slurry between the forming net that Arbitrary distribution moves on forming net or together and passes through forming
Moisture in the slurry of net is dehydrated slurry gradually and forms paper web.
But due to improving paper machine speed to improve economic manufacture sheet paper products, there is the operation with paper machine
The relevant new phenomenon of ability, these phenomenons are also related to the appearance and internal structure of the sheet paper products of production, these change most
Number be not it is desirable to, such as be unevenly distributed on the surface of sheet paper products or the clast and filler of inside, by
This just reduces acceptable retention force or outstanding retention force, these variations and defect are extremely bad for sheet paper products, and
And influence its sales force.
Patent No. CN100371528C Finland into China international patent of invention in, disclose one kind in paper machine
Or the method in double net forming areas of lap machine, by the forming shoe or component of the blade on the formation zone of paper machine,
Above-mentioned defect and disadvantage are eliminated or reduce, to improve the quality of yield and sheet paper products, but it can not solve papermaking original
Influence of the bubble to generating in paper-making process in slurry material, bubble ruptures in forming net causes part slurry vacancy occur,
Paper quality is set to be affected.
Summary of the invention
In view of the above problems, the present invention provides the double net forming techniques of paper web, by changing traditional paper technology
Into, after carrying out slurry injection to the first forming net and the second forming net, material process is rubbed with the hands by increasing, it will slurry by rubbing slurry
Bubble in material rubs, and solves the technical issues of bubble is to the influence generated in paper-making process in slurry, while certainly using slurry
The gravity of body, subsequent slurry generate compacting effect to the slurry of early period, the quality of paper web are made to get a promotion.
To achieve the above object, the invention provides the following technical scheme:
The double net forming techniques of paper web, comprising:
Step 1: feeding process, the slurry in slurry box are transferred to position by feeder sleeve pumping by the charging pump at the top of it
In material feeding case at the top of the first forming net and the second forming net；
Step 2: material feeding process is exported through spiral discharging head, the slurry of output straight down into the slurry in material feeding case
It enters in the closed gap between the first forming net and the second forming net, and is fed downwardly into positioned at the material feeding case straight down
The rubbing station of lower section；
Step 3: rubbing material process with the hands, reaches the slurry of rubbing station, drives the first rubbing plate and the second rubbing by driving mechanism
The reciprocating and staggered sliding of plate carries out rubbing to the slurry, and during rubbing, the bubble in slurry is rubbed with the hands broken discharge；
Step 4: water squeezing process, the slurry after removing bubble removing are driven straight down by the first forming net and the second forming net
It is input at the water squeezing station being located at below rubbing board group, slurry is squeezed by symmetrically arranged squeeze roll, it will be in slurry
Moisture squeeze out；
Step 5: water suction process, the slurry after squeeze roll water squeezing continue to be driven by the first forming net and the second forming net
Carry out 90 ° turn to after, at horizontal feed to water suction station, by vacuum drawing pump by the exhausting groove on exhausting plate to the slurry into
Row moisture is absorbed；
Step 6: forming output process completes the slurry after water suction point is absorbed and is configured to body paper, by the first forming net and the
Body paper after forming is driven horizontal output and is collected by two forming nets.
As an improvement, the first forming net and the second forming net in the step 1 are that jatharapanvartanasana is arranged, this first one-tenth
Closed gap between shape net and the second forming net forms formation zone, which is the setting of L shape comprising along the vertical direction certainly
V-arrangement input unit, rubbing portion, water squeezing portion and the water-holding portion and output being arranged from front to back in the horizontal direction of upper and lower setting
Portion.
As an improvement, material feeding case in the step 1 is taper setting, the first forming net of tip face and the second one-tenth
The V-arrangement input unit that shape net is formed, and the slurry of its output forms jet of stock.
As an improvement, offering the blow tank of spiral setting on the side wall of the spiral discharging head in the step 2, should go out
Hopper carries out spiral acceleration to slurry.
As an improvement, being provided with agitating paddle at the top of spiral discharging head in the step 2, the agitating paddle is by stream of slurry
It is dynamic to drive rotation, slurry is stirred.
As an improvement, being provided on the first rubbing plate in step 3 side opposite with the second rubbing plate along it
Several rubbing teeth that length direction is placed equidistant with, grind slurry.
As an improvement, being provided with the groove of annular in the middle part of squeeze roll in the step 4, the groove is for adjusting slurry
Expect the pressure in extrusion process.
As an improvement, being provided with wastewater trough below squeeze roll in the step 4, the wastewater trough is for collecting slurry
The waste water of interior extrusion.
As an improvement, the lower section two sides of the squeeze roll in the step 4 are symmetrically arranged with finishing knife, the knife of the finishing knife
It contradicts and is arranged with the two sides of the first forming net and the second forming net at sword, the edge of the slurry after water squeezing is modified.
As an improvement, exhausting groove on exhausting plate in the step 5 along second forming net gyratory directions gradually
It is arranged from dense to sparse.
The beneficial effects of the present invention are:
(1) present invention is passed through slurry by the way that the input terminal of the first forming net and the second forming net to be vertically arranged straight down
Expect jet stream, longitudinal rubbing is carried out to jet of stock using the first rubbing plate and the second rubbing plate of relative motion, it will be in slurry
Bubble rubs, and slurry is input in the closed gap between the first forming net and the second forming net again later, avoids bubble
Rupture influences the manufacture of paper, while the slurry of subsequent entrance is tamped by slurry of the gravity to early period, improves paper
Tightness；
(2) present invention cooperates material feeding by setting V-arrangement input unit for the input terminal of the first forming net and the second forming net
The setting of case makes slurry first to increase the impact force for the jet of stock being passed through between the first forming net and the second forming net
It is even closer in closure interval between forming net and the second forming net；
(3) taper discharge head is arranged by the discharge outlet in the bottom of material feeding case in the present invention, goes out slurry through taper
When spiral discharging slot on material head discharges, the impact force of a spiral is obtained, slurry is made more easily to enter the first forming
In closure interval between net and the second forming net；
(4) agitating paddle is arranged at the top of taper discharge head in the present invention, using slurry from the discharge port stream in material feeding bottom portion
Mobilization force when out drives agitating paddle rotation, and then stirs slurry, arranges the part bubble in slurry just directly in material feeding case
Out；
(5) present invention when exhausting plate is arranged, by the exhausting groove on exhausting plate along the second forming net gyratory directions gradually
From dense to sparse, to cooperate the suction of the moisture of the slurry between the first forming net and the second forming net gradually, get over slurry moisture
The suction that it is subject to when few is smaller, and to avoid slurry during dehydration forms body paper, suction is excessive to have an impact body paper, makes
At tearing；
In conclusion the advantages that present invention has clever structure, and the dry effect of de-watering of slurries is good, and body paper manufacturing quality is high,
It is particularly suitable for paper web, cardboard forming technical field.
Detailed description of the invention
Fig. 1 is present invention process flow diagram；
Fig. 2 is schematic diagram of the three-dimensional structure；
Fig. 3 is schematic cross-sectional view of the present invention；
Fig. 4 is material injecting mechanism schematic cross-sectional view of the present invention；
Fig. 5 is spiral discharging head schematic perspective view of the present invention；
Fig. 6 is rubbing mechanism of the present invention schematic perspective view；
Fig. 7 is the first rubbing plate and the second rubbing plate part-structure stereoscopic schematic diagram of the invention；
Fig. 8 is driving assembly schematic perspective view of the present invention；
Fig. 9 is water squeezing sector positive structure diagram of the present invention；
Figure 10 is squeeze roll positive structure diagram of the present invention；
Figure 11 is finishing knife schematic perspective view of the present invention；
Figure 12 is the hollow water absorber schematic perspective view of the present invention；
Figure 13 is exhausting plate schematic cross-sectional view of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment 1:
As shown in Figure 1, the double net forming techniques of paper web, comprising:
Step 1: feeding process, the slurry in slurry box 511 are pumped by the charging pump 512 at the top of it by feeder sleeve 513
It is transferred in the material feeding case 521 at 3 top of the first forming net 2 and the second forming net；
Step 2: material feeding process is exported through spiral discharging head 522, output straight down into the slurry in material feeding case 521
Slurry entered in the closed gap between the first forming net 2 and the second forming net 3 straight down, and be fed downwardly into and be located at
The rubbing station of 521 lower section of material feeding case；
Step 3: rubbing material process with the hands, reaches the slurry of rubbing station, by first rubbing plate 6110 of the driving of driving mechanism 612 with
The reciprocating and staggered sliding of second rubbing plate 6111 carries out rubbing to the slurry, and during rubbing, the bubble in slurry is rubbed with the hands broken row
Out；
Step 4: water squeezing process, slurry after removing bubble removing from the first forming net 2 and the second forming net 3 drive vertically to
Under be input at the water squeezing station of the lower section of rubbing board group 611, slurry is squeezed by symmetrically arranged squeeze roll 621,
Moisture in slurry is squeezed out；
Step 5: water suction process, the slurry after 621 water squeezing of squeeze roll continue by the first forming net 2 and the second forming net 3
It drives after carrying out 90 ° of steerings, at horizontal feed to water suction station, the exhausting groove on exhausting plate 72 is passed through by vacuum drawing pump 71
721 pairs of slurries carry out moisture absorption；
Step 6: forming output process completes the slurry after water suction point is absorbed and is configured to body paper, by the first forming net 2 with
Body paper after forming is driven horizontal output and is collected by the second forming net 3.
As shown in figure 3, the first forming net 2 and the second forming as a kind of preferably useless embodiment, in the step 1
Net 3 is jatharapanvartanasana setting, and the closed gap between first forming net 2 and the second forming net 3 forms formation zone 4, the forming
Area 4 is the setting of L shape comprising the V-arrangement input unit 41 that is arranged from top to bottom along the vertical direction, rubbing portion 42, water squeezing portion 43 and
The water-holding portion 44 being arranged from front to back in the horizontal direction and output section 45.
It is worth noting that slurry enters in formation zone 4 from V-arrangement input unit 41, since V-arrangement input unit 41 is to set vertically
It sets, the flow velocity of slurry adds the acceleration of gravity of its own, and when reaching rubbing portion 42, slurry can form one slurry and penetrate
Stream, is easier to flow in formation zone 4, accumulates slurry more evenly in formation zone.
As shown in figure 4, as a preferred embodiment, material feeding case 521 in the step 1 is taper setting,
The V-arrangement input unit 41 that tip face the first forming net 2 and the second forming net 3 are formed, and the slurry of its output forms jet of stock.
As shown in Figure 5, wherein going out for spiral setting is offered on the side wall of the spiral discharging head 522 in the step 2
Hopper 5221, the blow tank 5221 carry out spiral acceleration to slurry.
It should be noted that due in traditional paper technology, feed is horizontal feed, but horizontal feed rushes
It is too small to hit power, after slurry enters formation zone 4, since closed gap is very between the first forming net 2 and the second forming net 3
It is narrow, it will receive the obstruction of the first forming net 2 and the second forming net 3, slurry caused smooth can not to enter in formation zone 4, because
Material feeding case 521 is set taper by this, cooperates the V-arrangement input unit 41 being vertically arranged, and is slurry when exporting from material feeding case 521,
Jet stream is formed, slurry can be made smoothly to enter in formation zone 4.
It further illustrating, the blow tank 5221 of spiral setting can make slurry along blow tank 5221 after discharging,
Will form the jet of stock of spiral, the jet of stock of spiral since the spiral of its own accelerates, can easier drilling shape
In the crack in area 4.
As shown in figure 5, as a preferred embodiment, the top of the spiral discharging head 522 in the step 2 is set
It is equipped with agitating paddle 523, which is driven by pulp flow rotates, and is stirred to slurry.
It should be noted that since slurry is to combine the similar glue formed by various fibers, chemical agent and moisture
Liquid, in contain a large amount of bubble, if these bubble retentions remove, can to slurry when being configured to body paper in the later period, generate
It influences, its quality is destroyed, therefore, by being provided with agitating paddle 523 at the top of spiral discharging head 522, when using stock discharge
Flowing, drive agitating paddle 523 rotate, slurry is stirred, draws the part bubble in it out of slurry in advance, together
When, make the more uniform of the component distributing of slurry.
As shown in Figures 6 and 7, as a preferred embodiment, the first rubbing plate 6110 in the step 3 with
Several rubbing teeth 6112 being placed equidistant with along its length are provided on the opposite side of second rubbing plate 6111, to slurry
Material is ground.
It should be noted that although the slurry after the stirring of agitating paddle 523 eliminates the bubble of part, but in it still
A large amount of bubble is retained, and the diameter of bubble is smaller, has been not easy to be discharged, slurry has been ground by increasing rubbing tooth 6112,
Bubble is galled, bubble removing is removed, meanwhile, slurry pass through rubbing tooth 6112 grinding, become more careful, be conducive to promoted slurry at
Shape is the quality of body paper after body paper.
As shown in Figures 9 and 10, as a preferred embodiment, the middle part of the squeeze roll 621 in the step 4
It is provided with the groove 6211 of annular, the groove 6211 is for adjusting the pressure being subject in slurry extrusion process.
It should be noted that in traditional technique, when squeeze roll 621 squeezes slurry, since slurry is by crowded
Pressure, in moisture to two sides overflow, cause middle part slurry also with moisture to two sides spread, cause middle part slurry tail off, therefore
The pressure that slurry is subject in extrusion process is adjusted by setting groove 6211, overflows the moisture of part from groove 6211,
Guarantee that the slurry at middle part will not be spread to two sides, guarantees the uniformity of slurry.
As shown in figure 9, as a preferred embodiment, the lower section of the squeeze roll 621 in the step 4 is provided with
Wastewater trough 622, the wastewater trough 622 are used to collect the waste water squeezed out in slurry.
It should be noted that due in slurry contain a large amount of moisture, during slurry is configured to body paper, need by
Moisture discharge, the moisture of discharge contain a large amount of chemical component, and therefore, which cannot arbitrarily discharge, and need to pass through waste water
Slot 622 is by after moisture absorption, then concentrates and handled, and avoids pollution environment, pollutes.
As shown in figure 11, as a preferred embodiment, the lower section two sides pair of the squeeze roll 621 in the step 4
Title is provided with finishing knife 623, contradicts and sets with the two sides of the first forming net 2 and the second forming net 3 at the blade of the finishing knife 623
It sets, the edge of the slurry after water squeezing is modified.
It should be noted that during slurry is squeezed, moisture discharge be will lead in the first forming net 2 and second
Slurry at the two sides of the crack of forming net 3 can be very crude when forming body paper, therefore, passes through the finishing using setting
Knife 623 modifies the first forming net 2 and the slurry at the two sides of the crack of the second forming net 3, and side is avoided hair occur
Rough position.
As shown in figure 13, a kind of preferred embodiment is acted on, the exhausting groove 721 on exhausting plate 72 in the step 5
Gyratory directions along second forming net 3 are gradually arranged from dense to sparse.
It should be noted that removing the water of the part completing still to contain a small amount of moisture in the slurry after water squeezing work
After point, slurry is configured to body paper, but traditional paper making equipment is by a kind of water sucting plate of type shoe, on water sucting plate etc.
Several pick trough away from distribution, then vacuum dehydration is formed on water sucting plate by the vacuum source of connection, but which is not examined
Consider slurry during the dehydration process, moisture is fewer and fewer, and quality is more and more lighter, using traditional water sucting mode, will lead to water
Divide the slurry to tail off to be pulled power by excessive suction, causes body paper to deform, even rupture, therefore in the present embodiment, by exhausting groove
721 are gradually arranged from dense to sparse along the gyratory directions of second forming net 3, to solve the above problem, become in slurry moisture
When obtaining fewer, the quantity of exhausting groove 721 below is fewer, with the suction for cooperating it to be subject to.
Embodiment 2:
As shown in Figure 2 and Figure 3, the double net forming systems of a kind of paper web, comprising:
Rack 1, the rack 1 are the setting of L shape comprising the first mounting portion 11 being vertically arranged and be laterally arranged the
Two mounting portions 12；
First forming net 2, first forming net 2 form endless wire loop along the 1 annular revolution setting of rack；
Second forming net 3, second forming net 3 forms endless wire loop along the 1 annular revolution setting of rack, with institute
The setting of 2 corresponding matching of the first forming net is stated, and is formed between second forming net 3 and the first forming net 2 and shapes area 4；
Feeding device 5, the feeding device 5 include feeding machanism 51 and the material injecting mechanism being connected to the feeding machanism 51
52, the feeding machanism 51 is set to the side of first mounting portion 11, and the material injecting mechanism 52 is set to first peace
The top in dress portion 11；
Rubbing squeezing water 6, the rubbing squeezing water 6 are located at the lower section of the material injecting mechanism 52, are installed on described
On first mounting portion 11, and it includes rubbing mechanism 61 and water squeezing sector 62, and the rubbing mechanism 61 is used for the feeding machine
Structure 52 carries out rubbing to the slurry for shaping the injection of area 4；The water squeezing sector 62 is located at the lower section of the rubbing mechanism 61,
Extrusion dehydration is carried out to slurry；And
Vacuum water absorber 7, the vacuum water absorber 7 are set on second mounting portion 12, are located at described the
In the endless wire loop of two forming nets 3, and it is used to carry out vibration water suction to the slurry shaped in area 4.
As shown in Figure 3, wherein the area 4 that shapes is along the at L-shaped setting of the rack 1 comprising position is along described first
V-arrangement input unit 41 that mounting portion 11 is arranged from top to bottom, rubbing portion 42, water squeezing portion 43 and it is set to second mounting portion 12
On water-holding portion 44.
It should be noted that feeding device 5 injects jet of stock from V-arrangement input unit 41, jet of stock is from V-arrangement input unit
41 flow at rubbing portion 42, and longitudinal rubbing of slurry is carried out by the rubbing mechanism 61 in rubbing squeezing water 6, remove in slurry
Bubble, squeezed followed by water squeezing sector 62 and go most of moisture in slurry, slurry is transported at water-holding portion 44 later, by true
Remaining moisture in slurry is sucked out in suction water installations 7, and slurry is made gradually to be configured to body paper.
It further illustrates, the first forming net 2 engages drive by gear by power motor 20 with the second forming net 3
It is conveyed, and the first forming net 2 is consistent with the conveying direction of the second forming net 3.
It is worth noting that, more traditional paper paper making equipment, by increasing rubbing mechanism in rubbing squeezing water 6
61, rubbing is carried out to slurry using rubbing mechanism 61, the bubble in slurry is discharged with rubbing, avoids the bubble in slurry
4 implosion of area is being shaped, slurry is caused to be unevenly distributed, is influencing the quality for shaping body paper.
As shown in figs. 4 and 5, as a preferred embodiment, the material injecting mechanism 52 is located at the V-arrangement input unit
At 41 comprising:
Material feeding case 521, the material feeding case 521 are V-arrangement setting, and the upper end is connected to the feeding machanism 51；And
Several taper discharge heads 522, length direction of the taper discharge head 522 along the material feeding case 521 are equidistantly set
It is placed on the discharge port of its bottom, equal spiral is equipped with blow tank 5221 on the side wall of the taper discharge head 522.
As shown in Figure 5, wherein the material injecting mechanism 52 further include:
Several agitating paddles 523, the agitating paddle 523 is all set in the top of the corresponding taper discharge head 522, by institute
Stating the pulp flow in material feeding case 521 drives rotation to be stirred slurry.
It should be noted that feeding machanism 51 includes the slurry box 511 for being set to 1 side of rack, is set to slurry box 511
The charging pump 512 at top and the feeder sleeve 513 for being connected to slurry box 511 and material feeding case 521.
It further illustrates, charging pump 512 pumps slurry and is input in material feeding case 521 by feeder sleeve 413, then starches
Expect from taper discharge head 522 5221 spiral of blow tank discharge, slurry obtain spiral impact force, enable slurry preferably into
Enter to the closed interval between the first forming net 2 and the second forming net 3.
It further explains, during pulp flow, drives agitating paddle 523 to rotate, slurry is stirred, is made
Part bubble just discharge in advance in material feeding case 521 in slurry.
As shown in fig. 6, as a preferred embodiment, the rubbing mechanism 61 is set at the rubbing portion 42,
Comprising:
Rubbing board group 611, the rubbing board group 611 is between first forming net 2 and the second forming net 3, packet
Include the first rubbing plate 6110 and the second rubbing plate 6111 for being set to 42 two sides of rubbing portion；And
Driving assembly 612, the driving component 612 are symmetrically disposed on the two sides of the rubbing board group 611, described in driving
First rubbing plate 6110 and the second rubbing plate 6111 staggeredly slide.
As shown in fig. 7, further, the first rubbing plate 6110 is all provided on the side opposite with the second rubbing plate 6111
It is equipped with several rubbing teeth 6112 being placed equidistant with along its length.
It is staggeredly slided it should be noted that stating the first rubbing plate 6110 and the second rubbing plate 6111 by the driving of driving assembly 612
It is dynamic, rubbing is carried out to the jet of stock entered at rubbing portion 42, squeezes the bubble in slurry by the rubbing of rubbing tooth 6112
Pressure, from large to small, and is discharged upwards.
It further illustrates, the setting of rubbing tooth 6112 promotes the rubbing of the first rubbing plate 6110 and the second rubbing plate 6111
Effect, wherein rubbing tooth 6112 can be one of any shapes such as triangle, semicircle, rectangular.
As shown in figure 8, as a preferred embodiment, the driving component 612 includes:
Driving motor 6121, the driving motor 6121 are vertically arranged at the side of the rubbing board group 611, are located at institute
It states between the first rubbing plate 6110 and the second rubbing plate 6111；
Gear 6122, the gear 6122 are sheathed on the motor shaft of the driving motor 6121, are located at driving electricity
The lower section of machine 6121, and it is the setting of half gear；And
Rack gear 6123, the rack gear 6123 are symmetrically disposed on the two sides of the gear 6122, the rack gear 6123 respectively with institute
The first rubbing plate 6110 is stated to be fixedly connected with the second rubbing plate 6111.
It should be noted that the driving motor 6121 in 611 side of rubbing board group passes through gear 6122 and rack gear 6123
Engagement, when the first rubbing plate 6110 of twitch is slided, the driving motor 6121 of 611 other side of rubbing board group passes through gear 6122
The first rubbing plate 6110 and the second rubbing plate are realized when the second rubbing plate 6111 of twitch is slided with engaging for rack gear 6123
6111 staggeredly slide, when the engaging by gear 6122 and rack gear 6123 of driving motor 6121 of 611 side of rubbing board group, pushes away
When dynamic first rubbing plate 6110 is slided, the driving motor 6121 of 611 other side of rubbing board group passes through gear 6122 and rack gear
6123 engagement pushes the second rubbing plate 6111 to be slided, in this way, realizing the first rubbing plate 6110 and the second rubbing plate
6111 continuous staggeredly sliding.
As shown in Fig. 9, Figure 10 and Figure 11, as a preferred embodiment, the water squeezing sector 62 be set to it is described
At water squeezing portion 43 comprising:
Squeeze roll 621, the squeeze roll 621 are symmetrically disposed on the two sides in the water squeezing portion 43, which distinguishes position
Inside the endless wire loop of first forming net 2 and the second forming net 3；
Wastewater trough 622, the wastewater trough 622 are symmetrically disposed on the two sides for stating water squeezing portion 43, are located at the squeeze roll 621
Underface, and its top contradicts setting with first forming net 2 and the second forming net 3 respectively；And
Rest and reorganization knife 623, the rest and reorganization knife 623 are symmetrically disposed on the two sides of the wastewater trough 622, with described the at blade
The two sides of one forming net 2 and the second forming net 3 contradict setting.
It should be noted that squeeze roll 621 is by the major part in the slurry between the first forming net 2 and the second forming net 3
Moisture squeezes out, and collects the moisture that squeeze roll 621 is squeezed out from slurry by wastewater trough 622, moisture concentration is filled by subsequent water process
It sets and is handled.
It further illustrates, the middle part of squeeze roll 621 is equipped with the notch of annular, squeezes the first forming in squeeze roll 621
When slurry between net 2 and the second forming net 3, two sides overflow of the slurry to the first forming net 2 and the second forming net 3 can be led
The slurry at middle part is caused to reduce, therefore, by being equipped with the notch of annular, when slurry being made to be squeezed, one at the middle part of squeeze roll 621
Divide slurry to middle part overflow, guarantees the abundance of middle part slurry.
It further explains, the slurry between the first forming net 2 and the second forming net 3 is squeezed through squeeze roll 621
During dehydration, slurry can overflow at the first forming net 2 and the second forming net 3, if without processing, the body paper of formation
Two sides can be very crude, therefore is carried out by slurry of the finishing knife 623 to 3 both sides of the first forming net 2 and the second forming net
Finishing reaches forming body paper two sides and does not have deckle-edged effect.
As shown in figure 12, as a preferred embodiment, the vacuum water absorber 7 is set to the water-holding portion 44
Place comprising:
Vacuum drawing pump 71, the vacuum drawing pump 71 are set to the side of second mounting portion 12；And
Exhausting plate 72, the exhausting plate 72 are set to the lower section of the water-holding portion 44, are located at second forming net 3
It in endless wire loop, and is covered by second forming net 3, and its inner hollow, and is connected to vacuum drawing pump 71；It edge should
The gyratory directions of second forming net 3, the upper surface of the exhausting plate 72 are provided with several exhausting grooves 721.
As shown in figure 13, wherein the exhausting groove 721 along second forming net 3 gyratory directions gradually from dense to sparse.
The course of work is as follows:
Feeding device 5 injects jet of stock from V-arrangement input unit 41, and jet of stock flow to rubbing from V-arrangement input unit 41
At portion 42, longitudinal rubbing of slurry is carried out by the rubbing mechanism 61 in rubbing squeezing water 6, removes the bubble in slurry, then
The most of moisture gone in slurry is squeezed using water squeezing sector 62, slurry is transported at water-holding portion 44 later, by vacuum water absorber 7
Remaining moisture in slurry is sucked out, slurry is made gradually to be configured to body paper.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. the double net forming techniques of paper web characterized by comprising
Step 1, feeding process, the slurry in slurry box (511) pass through feeder sleeve (513) by the charging pump (512) at the top of it and pump
It send in the material feeding case (521) being transferred at the top of the first forming net (2) and the second forming net (3)；
Step 2, material feeding process are exported through spiral discharging head (522), output straight down into the slurry in material feeding case (521)
Slurry entered in the closed gap between the first forming net (2) and the second forming net (3) straight down, and be fed downwardly into
Rubbing station below the material feeding case (521)；
Step 3, rub with the hands material process, reach rubbing station slurry, by driving mechanism (612) drive first rubbing plate (6110) with
The reciprocating and staggered sliding of second rubbing plate (6111) carries out rubbing to the slurry, and during rubbing, the bubble in slurry is rubbed with the hands broken
Discharge；
Step 4, water squeezing process, slurry after removing bubble removing from the first forming net (2) and the second forming net (3) drive vertically to
Under be input at the water squeezing station below rubbing board group (611), slurry is squeezed by symmetrically arranged squeeze roll (621)
Pressure squeezes out the moisture in slurry；
Step 5, absorb water process, and the slurry after squeeze roll (621) water squeezing continues by the first forming net (2) and the second forming net
(3) it drives after carrying out 90 ° of steerings, at horizontal feed to water suction station, is passed through on exhausting plate (72) by vacuum drawing pump (71)
Exhausting groove (721) carries out moisture absorption to the slurry；
Step 6, forming output process complete the slurry after moisture is absorbed and are configured to body paper, by the first forming net (2) and second
Body paper after forming is driven horizontal output and is collected by forming net (3).
2. the double net forming techniques of paper web according to claim 1, it is characterised in that: the first forming net in the step 1
It (2) is jatharapanvartanasana setting, the closed gap between first forming net (2) and the second forming net (3) with the second forming net (3)
It is formed formation zone (4), which is the setting of L shape comprising the V-arrangement input unit being arranged from top to bottom along the vertical direction
(41), rubbing portion (42), water squeezing portion (43) and the water-holding portion (44) being arranged from front to back in the horizontal direction and output section (45).
3. the double net forming techniques of paper web according to claim 2, it is characterised in that: the material feeding case in the step 1
(521) it is arranged for taper, the V-arrangement input unit (41) of the first forming net of tip face (2) and the second forming net (3) formation, and
Its slurry exported forms jet of stock.
4. the double net forming techniques of paper web according to claim 1, it is characterised in that: the spiral discharging head in the step 2
(522) blow tank (5221) of spiral setting is offered on side wall, which carries out spiral acceleration to slurry.
5. the double net forming techniques of paper web according to claim 4, it is characterised in that: the spiral discharging head in the step 2
(522) agitating paddle (523) are provided at the top of, which is driven by pulp flow rotates, and is stirred to slurry.
6. the double net forming techniques of paper web according to claim 1, it is characterised in that: the first rubbing plate in the step 3
(6110) and several rubbing teeth being placed equidistant with along its length are provided on the opposite side of the second rubbing plate (6111)
(6112), slurry is ground.
7. the double net forming techniques of paper web according to claim 1, it is characterised in that: the squeeze roll in the step 4
(621) groove (6211) of annular is provided in the middle part of, the groove (6211) is for adjusting the pressure being subject in slurry extrusion process
Power.
8. the double net forming techniques of paper web according to claim 1, it is characterised in that: the squeeze roll in the step 4
(621) wastewater trough (622) are provided with below, which is used to collect the waste water squeezed out in slurry.
9. the double net forming techniques of paper web according to claim 1, it is characterised in that: the squeeze roll in the step 4
(621) lower section two sides are symmetrically arranged with finishing knife (623), at the blade of the finishing knife (623) with the first forming net (2) and the
The two sides of two forming nets (3) contradict setting, modify to the edge of the slurry after water squeezing.
10. the double net forming techniques of paper web according to claim 1, it is characterised in that:
The exhausting groove (721) on exhausting plate (72) in the step 5 along second forming net (3) gyratory directions gradually
It is arranged from dense to sparse.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710820499.4A CN107354795B (en) | 2017-09-13 | 2017-09-13 | The double net forming techniques of paper web |
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| CN201710820499.4A CN107354795B (en) | 2017-09-13 | 2017-09-13 | The double net forming techniques of paper web |
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| CN107354795A CN107354795A (en) | 2017-11-17 |
| CN107354795B true CN107354795B (en) | 2019-05-14 |
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| CN116808715B (en) * | 2023-08-04 | 2024-06-18 | 安徽华骐生态环境材料有限公司 | Sulfur autotrophic filter material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3450596A (en) * | 1965-02-19 | 1969-06-17 | Black Clawson Co | Headbox for twin wire paper machine |
| US3619362A (en) * | 1969-02-03 | 1971-11-09 | Beloit Corp | Papermaking headbox stock nozzle with liquid jacket means for elimination of stock exposure to air |
| GB1287154A (en) * | 1969-02-13 | 1972-08-31 | Beloit Corp | Improved paper forming arrangement |
| CN2052415U (en) * | 1988-07-18 | 1990-02-07 | 王锡元 | Cylinder machine paper-shaper with clip wire-cloth |
| CA2489659C (en) * | 2002-08-23 | 2010-02-16 | Metso Paper, Inc. | Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former |
| CN102852022A (en) * | 2011-06-27 | 2013-01-02 | 郭文斌 | Anti-flocculation bottomless vertical sizing process |
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Effective date of registration: 20190415 Address after: 223400 Ping'an Village, Wugang Town, Lianshui County, Huaian City, Jiangsu Province Applicant after: Huaian Hengfa Paper Co., Ltd. Address before: 313100 Zhejiang Huzhou Changxing County Xiaopu Town Xiaopu Village Huzhou Jingte New Materials Co., Ltd. Applicant before: Huzhou fine new material Co., Ltd. |
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