CN206562541U - A kind of device for changing dilution water concentration adjusting paper cross direction ration - Google Patents
A kind of device for changing dilution water concentration adjusting paper cross direction ration Download PDFInfo
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- CN206562541U CN206562541U CN201720121330.5U CN201720121330U CN206562541U CN 206562541 U CN206562541 U CN 206562541U CN 201720121330 U CN201720121330 U CN 201720121330U CN 206562541 U CN206562541 U CN 206562541U
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Abstract
The utility model discloses a kind of device for changing dilution water concentration adjusting paper cross direction ration, including the one-level regulating system being connected and two grades of regulating systems, the outside of head box, which is provided with the first dilution water module, head box, is provided with the second dilution water module between balance cylinder and turbulent flow generator；In one-level regulating system, the first dilution supply mains is connected by the first dilution water branch pipe with the first dilution water module, and the second dilution supply mains is located at the side of the first dilution water module；In two grades of regulating systems, the second dilution supply mains is connected by each second dilution water branch pipe with the second dilution water module.Its method is that first the dilution water concentration in the second dilution supply mains is adjusted using one-level regulating system, recycles the dilution water of over-richness regulation that the slurry concentration in head box is adjusted.The utility model can be effectively prevented from due to cloth that to starch each stock for restraining out slurry stream concentration inconsistent and the influence to dilution water regulating effect is mixed in head box balance cylinder.
Description
Technical field
The utility model is related to pulp and paper technology field, more particularly to a kind of to change dilution water concentration regulation paper banner
Quantitative device.
Background technology
With the development and the improvement of people's living standards of society, market is proposed for the cross direction ration level distribution of paper
Higher and higher requirement.Compared with the cross direction ration adjusting method of conventional headbox, dense control full width is starched by local modulation
Quantitative method has that adjustment quantitative is accurate, sensitivity is high, the amplitude of regulation and the quantitative deviation of correction is big, can effectively adjust complete
The uniformity of width horizontal quantification, the advantages of full width fiber alignment uniformity can be kept again, thus obtained non-in the whole world
Often it is widely applied.
Local modulation starches the quantitative operation principle of dense control full width：Appropriate spacing distance is laterally selected along head box,
Dilution water is injected into head box, usually mthod of white water from paper making, to local modulation slurry concentration, realize that profile basis weight is uniform
Regulation.
According to above-mentioned principle, people devise a variety of different dilution water adding methods and device, mainly there is following several：
In U.S. patent documents US005843281, disclose the dilution water come from dilution supply mains and pass through dilution water branch pipe
Into in the cloth slurry tube bank after square Taper Pipe, dilution water branch pipe is arranged between cloth slurry tube bank, passes through governor valve control dilution water
Flow adjusts cross direction ration.
In U.S. patent documents US005196091A, disclose many dilution water pipes and be connected with the upstream end that cloth starches tube bank,
Dilution water is entered in tube bank by diluting water pipe, and controls the flow of dilution water by diluting water valve, so as to control into paper
Cross direction ration is distributed.
In U.S. patent documents US005800678A, disclose dilution supply mains and be arranged above and below with entering to starch house steward, centre is logical
A wall is crossed to separate.During the dilution water come from dilution supply mains enters each pipe that cloth starches tube bank by regulating valve and branch pipe, no
The dilution water of same amount is mixed in tube bank with main slurry stream, so as to adjust paper by changing the flow of dilution water and the concentration of slurry
The cross direction ration opened.
In U.S. patent documents US006136152A, disclose dilution water and add into slurry house steward and the interbank connection of cloth slurry
In block, dilution water is injected into the main slurry stream of cloth slurry tube bank entrance at an angle with main slurry stream, and dilution water flow is with less than 180 °
Steering be mixed into main slurry stream in cloth slurry tube bank, uniform quantitative distribution is obtained by adjusting the flow of dilution water.
Obviously, from above-mentioned each disclosed scheme, existing dilution water adding method mostly injects dilution water
Cloth starches the porch that in tube bank or cloth slurry is restrained, and cross direction ration is controlled by changing the flow of dilution water.These methods are abundant
The mechanism of the uniform cloth slurry of taper house steward is make use of, reduces and adds the changes in flow rate that every cloth after dilution water starches branch pipe, but in reality
In production application, problems with is still suffered from：
One, it is not completely equivalent due to the dilution water added in every tubulation, therefore is gone out after cloth slurry branch pipe, due to edge
Laterally slurry flow is not completely equivalent head box, so as to more or less there is crossing current.
Secondly, head box generally cloth starch tube bank lip area between have an intermediate equilibria room and turbulent flow generator,
Dilution water is mixed with main slurry stream in cloth slurry branch pipe, but the shallow bid slurry stream for restraining out is starched from cloth, unavoidably will each other
Part is produced to mix, meanwhile, the resistance produced by the turbulent flow generator of balance cylinder exit can also promote to starch the mixed of stream in balance cylinder
Close, so as to influence the regulating effect of dilution water.That is, the optimal addition place of dilution water is not to starch tube bank in cloth
Upstream, and should be proximate in the turbulent flow generator of lip.
Thirdly, dilution water branch pipe be arranged on cloth slurry branch pipe between, then size, quantity and the installation site of dilution water branch pipe
All limited by cloth slurry branch tube pitch, this aspect have impact on the performance of dilution water regulating effect；On the other hand, dilution water branch
Pipe must starch every pipe in pipe with each column cloth again and be connected, and this undoubtedly adds the difficulty of processing and manufacturing again.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art to change dilution water concentration regulation paper there is provided one kind
The device of cross direction ration, the device does not change the flow of dilution water, and realizes paper banner by changing the concentration of dilution water
Quantitative regulation, can be effectively prevented from due to cloth starch restrain out each stock slurry stream concentration it is inconsistent and in head box balance cylinder
Mix the influence to dilution water regulating effect.
The technical solution of the utility model is：A kind of device for changing dilution water concentration adjusting paper cross direction ration, including
The one-level regulating system being connected and two grades of regulating systems, the outside of head box, which is provided with the first dilution water module, head box, puts down
Weigh and the second dilution water module is provided between room and turbulent flow generator, the port of export of two grades of regulating systems is connected with turbulent flow generator
Connect；One-level regulating system includes the first dilution supply mains, multiple first dilution water branch pipes, the first dilution water module and the second dilution
Supply mains, the first dilution supply mains is connected by multiple first dilution water branch pipes in parallel with the first dilution water module, and second is dilute
Release the side that supply mains is located at the first dilution water module；Two grades of regulating systems include the multiple second dilution water branch pipes being arranged in parallel
With the second dilution water module, the second dilution supply mains is connected by each second dilution water branch pipe with the second dilution water module.
Each first dilution water branch pipe is provided with diluting water regulating valve, can be with each separately adjustable the first dilution water branch pipe
On flow so that realize high concentration diluting water in each dilution unit in the second dilution water module is carried out it is separately adjustable.
Each diluting water regulating valve can use linear V-type ball valve, on corresponding dilution water branch pipe, and be connected with stepper motor, use
To adjust low concentration dilution water flow, stepper motor can be by the control system of paper machine, according to the measure of paper cross direction ration
As a result, the aperture of diluting water regulating valve is controlled by computer.And diluting water regulating valve is not provided with the second dilution water branch pipe, it is right
Second dilution water branch pipe is without flow control, to ensure the dilution water flow adjusted through over-richness into the second dilution water module
Amount is equal.
In the first dilution water module, the slurry stream direction in water (flow) direction and head box from the second dilution supply mains
Parallel, the water (flow) direction for flowing into the second dilution water branch pipe is also parallel with the slurry direction in head box, from the first dilution
Angle is formed between slurry stream direction in the water (flow) direction and head box of water branch pipe；It is dilute from second in second dilution water module
Release and form angle between the slurry stream direction in the water (flow) direction and head box of water branch pipe.That is, the first dilution water branch pipe can
It is dilute that top surface or bottom surface perpendicular to the first dilution water module, the second dilution supply mains and the second dilution water branch pipe are respectively arranged on first
Release the both sides of water module, top surface or bottom surface of the second dilution water branch pipe perpendicular to the second dilution water module.
Dilution water in the first dilution supply mains is clear water or the plain boiled water of clarification；Dilution in second dilution supply mains
Water is enriched water, and the concentration of enriched water is 0.05%~0.2%.
The thinner ratio scope of the one-level regulating system is 10%-30%, and the thinner ratio scope of two grades of regulating systems is
10%-15%.
The structure of the first dilution water module is identical with the structure of the second dilution water module, by multiple dilution unit edges
The cross-sectional direction of head box is rearranged；Each dilution unit enters to starch section, mixing section and pulp section including what is be sequentially connected, enters slurry
Duan Shangfang is provided with dilution water inlet.Wherein, the lateral cross section for entering to starch section is rectangle, and longitudinal cross-section is trapezoidal, the knot of pulp section
Structure and size are identical with entering to starch section (entering to starch the diffusion type structure of section and pulp section for symmetrical configuration), and both are symmetrically set in mixing
The two ends of section, enter to starch the columns that width and the exit width of pulp section at the import of section depend on institute's control bundle, can wait
The width restrained in one or more columns per page turbulent flow, its height is equal with the inlet height of turbulent flow generator.The cross sectional shape of mixing section
For circular, square or polygon, when for circle, its a diameter of 15~25mm, when for it is square when, its length of side is 15~25mm.
The entire length of dilution unit is 100~200mm, wherein the length for entering to starch section, mixing section and pulp section respectively accounts for 1/3 or so.
In the first dilution water module, enter to starch section and be connected with the second dilution supply mains, dilution water inlet and the first dilution
Water branch pipe is connected, and pulp section is connected with the second dilution water branch pipe；In second dilution water module, enter to starch section and be connected with balance cylinder, it is dilute
Release water inlet to be connected with the second dilution water branch pipe, pulp section is connected with turbulent flow generator.
It is described to enter to starch between the center line of section and the center line of dilution water inlet into 80 ° of angles.That is slurry stream direction is with diluting
The angle formed between the water (flow) direction of water is preferably 80 °.The need for actual conditions, the angle can take between 0-90 °
Value.
In said apparatus structure, head box is mainly by entering to starch house steward, pulp distributor, balance cylinder, turbulent flow generator and lip area
Composition is sequentially connected, the device of this change dilution water concentration adjusting paper cross direction ration is located above or below head box, its
In the second dilution water module located at the junction of balance cylinder and turbulent flow generator.Wherein, the first dilution supply mains is that market is general
Conical pipe or round tube, second dilution supply mains be conical pipe, by Bai Nasi equations design, with backflow, the second dilution water
House steward carries inlet control valve and return valve, so as to control the dilution entered by the second dilution water module in head box
The total flow of water, it is ensured that thinner ratio is balanced by the pressure for the valve regulation dilution water house steward that flows back in rational scope, so as to protect
The flow and pressure that card enters every second dilution water branch pipe by the first dilution water module are essentially equal.
The dilution water that the dilution water (low concentration dilution water) and the second dilution supply mains come from the first dilution supply mains comes is (high
Concentration dilution water) it is sufficiently mixed in the first dilution water module, the stream of each first dilution water branch pipe is adjusted by diluting water regulating valve
Amount, so as to adjust the concentration of the dilution water (dilution water adjusted through over-richness) into head box, makes its concentration and flow full
After foot is required, enter turbulent flow into the second dilution water module, after being then sufficiently mixed in the second dilution water module with slurry and send out
In raw device.Due to the second dilution water branch pipe be not mounted within turbulent flow tube bank between, thus the second dilution water branch pipe size not by
Turbulent flow it is interbank away from influence, relatively large caliber can be used, it is to avoid the material such as fiber in dilution water block dilution water
Branch pipe.Second dilution water injects in slurry stream at an angle, and is sufficiently mixed in mixing section, then enters each by pulp section
In tubulation beam or other turbulent flow elements.In the second dilution water module, because each dilution unit structure is identical, into each dilute
Release dilution water flow in unit also identical with entry angle, therefore, the addition of dilution water does not influence slurry in each tubulation beam
Relative discharge, but effectively have adjusted the slurry concentration in each tubulation beam, thus reached by add dilution water adjust paper
Open the purpose of cross direction ration.
The utility model can realize a kind of method for changing dilution water concentration adjusting paper cross direction ration according to said apparatus,
First the dilution water concentration in the second dilution supply mains is adjusted using one-level regulating system, over-richness regulation is recycled
Dilution water the slurry concentration in head box is adjusted.
This method specifically includes following steps：
Dilution water in (1) first dilution supply mains is low concentration dilution water, passes through each first dilution water branch pipe feeding the
In one dilution water module；Dilution water in second dilution supply mains is high concentration diluting water, is sent directly into the first dilution water module
In；High concentration diluting water is mixed with low concentration dilution water in the first dilution water module, formed through over-richness adjust it is dilute
Water is released, is then sent into by the second dilution water branch pipe in the second dilution water module；Wherein, is entered by each first dilution water branch pipe
The low concentration dilution water flow of one dilution water module is different；The dilution water adjusted through over-richness, is entered by each second dilution water branch pipe
When entering the second dilution water module, flow is identical with pressure, but concentration is different；
(2) slurry in head box behind balance cylinder by being sent directly into the second dilution water module, in the second dilution water mould
In block, the dilution water adjusted through over-richness is mixed with slurry, is formed after the slurry that over-richness is adjusted, is delivered to the turbulent flow of head box
In generator.
The device and method of above-mentioned change dilution water concentration adjusting paper cross direction ration is in use, its operation principle is：It is first
First, regulation second dilutes the control valve on supply mains, as requested, and regulation enters the total flow of dilution water in head box.Then
By first dilution supply mains come clear water or dilute plain boiled water using diluting water regulating valve adjust flow after, pass through the first dilution water branch pipe
It is sufficiently mixed with the enriched water that comes from the second dilution supply mains in the first dilution water module, obtains that flow is identical but concentration is different
Dilution water after, by corresponding second dilution water branch pipe enter the second dilution water module in, with balance cylinder come slurry it is abundant
Mixing now, because the dilution water flow that each second dilution water branch pipe is added is essentially equal, therefore will not change head box
The track of middle slurry stream and the flow of each branch pipe of turbulent flow generator, and because the dilution water concentration that each second dilution water branch pipe is added is
Differ, the purpose of regulation cross direction ration is so reached by adjusting slurry concentration.
The utility model has the advantages that relative to prior art：
The device and method of this change dilution water concentration adjusting paper cross direction ration is in use, by changing the dense of dilution water
Degree carrys out adjusting paper cross direction ration, the flow without changing dilution water, and the dilution water after being adjusted through over-richness is equally injected
The turbulent flow generator upstream of head box, so that the cross direction ration of paper is adjusted by changing the concentration of slurry, while can be effective
Ground, which avoids to be starched each stock for restraining out due to cloth and starched, flows the influence mixed in head box balance cylinder to dilution water regulating effect.
In the device and method of this change dilution water concentration adjusting paper cross direction ration, dilution water adds the rapids in head box
In flow-generator, rather than in cloth slurry tube bank, mixing of the multiply tributary in head box balance cylinder is effectively prevent to dilution
The influence of water regulating effect.
In the device and method of this change dilution water concentration adjusting paper cross direction ration, add on head box banner each point
Dilution water flow is identical, so that it is guaranteed that not influenceing the flow of each branch pipe in turbulent flow generator, it is to avoid produced in lip area
Crossing current, it also avoid being mutually mixed the influence to cross direction ration regulating effect between tributary.
In the device of this change dilution water concentration adjusting paper cross direction ration, dilution water branch pipe is arranged on dilution water module
Above or below, rather than between turbulent flow generator branch pipe, thus larger caliber can be chosen as needed, it is to avoid dilution
The blocking of water branch pipe, can make dilution water using denseer plain boiled water.
The device processing and fabricating of this change dilution water concentration adjusting paper cross direction ration is simple, and equipment cost is low.Both it was adapted to
The making of new head box, is especially suitable in the transformation of existing head box, transformation process again, need to only increase two sets of dilution water regulation systems newly
System, is then arranged on one of dilution water module between head box balance cylinder and turbulent flow generator, and without convection current
Starch box structure and carry out big transformation, its application prospect is preferable.
Brief description of the drawings
Fig. 1 is the structural representation for the device that this change dilutes water concentration adjusting paper cross direction ration.
Fig. 2 is Fig. 1 Section A-A view.
The structural representation that Fig. 3 is connected for single dilution unit in Fig. 2 D parts with turbulent flow generator.
Fig. 4 is the part-structure schematic diagram of the second dilution water module on Fig. 2 C directions.
Fig. 5 is the structural representation of single dilution unit.
Fig. 6 is Fig. 1 section B-B view.
In above-mentioned each figure, part shown in each label is as follows：1 is the first dilution supply mains, and 2 be the second dilution supply mains, and 3 are
First dilution water module, 4 be diluting water regulating valve, and 5 be the first dilution water branch pipe, and 6 be the second dilution water branch pipe, and 7 be second dilute
Release water module, 8 be that into starching house steward, 9 be pulp distributor, and 10 be balance cylinder, and 11 be turbulent flow generator, and 12 be lip area, and 13 be into slurry
Section, 14 be mixing section, and 15 be pulp section, and 16 be dilution water inlet, and a is angle.
Embodiment
With reference to embodiment, the utility model is described in further detail, but embodiment of the present utility model
Not limited to this.
Embodiment 1
A kind of device for changing dilution water concentration adjusting paper cross direction ration of the present embodiment, as shown in figure 1, installing and applying
In on head box, head box is mainly by entering to starch house steward 8, pulp distributor 9, balance cylinder 10, turbulent flow generator 11 and lip area 12 successively
Connection composition.
Changing the device of dilution water concentration adjusting paper cross direction ration includes one-level regulating system (regulation dilution water concentration
With) and two grades of regulating systems (regulation slurry concentration use), one-level regulating system is main to be diluted by the first dilution supply mains 1, second
Supply mains 2, diluting water regulating valve 4, the first dilution water branch pipe 5 and the first dilution water module 3 are constituted, the dilution of first time regulating system
Than for 15%.Two grades of regulating systems are connected with one-level regulating system, by the second dilution water branch pipe 6 and the structure of the second dilution water module 7
Into the thinner ratio of two grades of regulating systems is 10%.
First dilution supply mains can be common conical pipe or round tube.Dilution water in first dilution supply mains can be used
Clarified white water is used in clear water or the plain boiled water of clarification, this example.
Second dilution supply mains is taper house steward, is designed by Bai Nasi equations, with backflow, be can guarantee that by the first dilution
The flow and pressure that water module enters the second dilution water branch pipe are essentially equal.Second dilution supply mains is with inlet control valve and returns
Valve is flowed, so as to control the flow of the dilution water entered by the second dilution water module in head box, it is ensured that thinner ratio exists
It is required that in the range of.The pressure for diluting supply mains by the valve regulation second that flows back is balanced, so as to ensure by the first dilution water mould
The flow and pressure for entering the dilution water of every second dilution water branch pipe after block are essentially equal.Dilution in second dilution supply mains
Water uses enriched water.
The dilution water that the dilution water and the second dilution supply mains come from the first dilution supply mains comes is in the first dilution water module
In be sufficiently mixed, by diluting water regulating valve adjust the first dilution water branch pipe flow, so as to adjust into the second dilution water branch pipe
Dilution water concentration, well mixed and concentration reaches that the dilution water after requirement enters the second dilution water module, in the second dilution
Enter after being sufficiently mixed in water module with slurry in turbulent flow generator.
First dilution water module connects with the outlet of the second dilution supply mains, and the second dilution water module is arranged on head box
Between balance cylinder and turbulent flow generator；Diluting water regulating valve is arranged on the first dilution water branch pipe.Wherein, diluting water regulating valve is
Linear V-type ball valve, on the first dilution water branch pipe, and is connected with stepper motor, to adjust dilution water flow；Stepping electricity
Machine, according to the measurement result of paper cross direction ration, can pass through computer control dilution water valve by the control system of paper machine
Aperture.
On second dilution water branch pipe any control valve is not installed.
As shown in Fig. 2 the second dilution water module is made up of multiple dilution units.In the tube bank of turbulent flow generator, each pipe
Centre-to-centre spacing between a diameter of Φ 18mm, two neighboring pipe is 30mm, each unit control of design requirement the second dilution water module
The slurry concentration of adjacent two tubulations beam is made, thus, the exit width of the second each unit of dilution water module is more than 48mm, it is contemplated that
Wall thickness between unit, the width of each dilution unit is 60mm, and its internal height is equal to the outlet height of balance cylinder, each
The outlet of unit can completely include the import of two tubulation beams, as shown in Figure 3.As can be seen here, the second dilution water module is constituted
Dilution unit number is the half of tube bank columns in whole turbulent flow generator.
As shown in figure 4, the first dilution water branch pipe is arranged on the centre position of each dilution unit in the second dilution water module, respectively
Dilution unit width is 60mm, and the spacing of two neighboring first dilution water branch pipe is also 60mm, also can be as needed, reduces or increases
Plus first dilution water branch pipe spacing, from each dilution unit of the second dilution water module to one row or more row tube bank supply
Slurry, the slurry concentration of one or more columns per page is adjusted by a dilution unit, so as to adjust the cross direction ration of paper.
Constitute the structure of each dilution unit of the first dilution water module or the second dilution water module as shown in figure 5, it is main by
Enter to starch section 13, mixing section 14, pulp section 15 and dilution water inlet 16 to constitute, it is rectangular that it, which enters to starch section and the oral area of pulp section,
Shape.Mixing section is tubular, positioned at the centre of dilution unit, enter to starch section by oral area gradually symmetric shrinkage to mixing section import, so
Gradually symmetrically it is extended to the oral area of pulp section by the outlet of mixing section again afterwards.The angle a formed between dilution water flow and slurry stream is about
For 80 °.In second dilution water module, a diameter of Φ 20mm of mixing section, the length of mixing section is 30mm, the second dilution water module
Total length (being into the length sum for starching section, mixing section and pulp section) be 100mm, slurry and dilution water are in the pipe of mixing section
It is sufficiently mixed, the slurry after being adjusted through over-richness enters in the turbulent flow generator of head box, is whitewashed finally by lip area
Online, the cross direction ration distribution of control paper.The complete phase of structure snd size of second dilution water module and the first dilution water module
Together.
As shown in fig. 6, the first dilution water module is arranged between the second dilution supply mains and the second dilution water branch pipe, simultaneously
Connect with the first dilution water branch pipe, the first dilution water module is identical with the structure and size of the second dilution water module, each
The width of dilution unit is 60mm, and its internal height is equal to the total outlet height of the first dilution water, two neighboring first dilution water
The spacing of branch pipe is also 60mm.
In said apparatus structure, because the second dilution water branch pipe is not mounted between the tube bank of turbulent flow generator, thus
The size of second dilution water branch pipe by interbank away from being influenceed in turbulent flow generator, can not use relatively large caliber, keep away
Exempt from the materials such as the fiber in dilution water and block dilution water branch pipe.Dilution water in second dilution water branch pipe injects at an angle
In slurry stream, and it is sufficiently mixed in mixing section, each tubulation beam or other turbulence cells of turbulent flow generator is then entered by pulp section
In part.Because each dilution unit structure is identical, dilution water flow and entry angle also complete phase into each dilution unit
Together, therefore, the addition of dilution water does not influence the relative discharge of slurry in each tubulation beam, but effectively have adjusted in each tubulation beam
Slurry concentration, so as to reach the purpose by adding dilution water adjusting paper cross direction ration.
Said apparatus is in use, its operation principle is：First, regulation second dilute supply mains on control valve, according to will
Ask, regulation enters the total flow of dilution water in head box.Then by first dilution supply mains come clear water or dilute plain boiled water utilize it is dilute
Release water regulating valve regulation flow after, by the first dilution water branch pipe with from second dilution supply mains come enriched water first dilute
It is sufficiently mixed, is obtained after the dilution water that flow is identical but concentration is different in water module, is entered by corresponding second dilution water branch pipe
Enter in the second dilution water module, with balance cylinder come slurry be sufficiently mixed now, due to each second dilution water branch pipe add it is dilute
It is essentially equal to release water-carrying capacity, therefore will not change the flow of the track that stream is starched in head box and each branch pipe of turbulent flow generator,
Again because the dilution water concentration that each second dilution water branch pipe is added is differed, so regulation is reached by adjusting slurry concentration
The purpose of cross direction ration.
Embodiment 2
The present embodiment realizes a kind of side for changing dilution water concentration adjusting paper cross direction ration by the described device of embodiment 1
Method, is first adjusted to the dilution water concentration in the second dilution supply mains using one-level regulating system, recycles over-richness
Slurry concentration in head box is adjusted the dilution water of regulation.Specifically include following steps：
Dilution water in (1) first dilution supply mains is low concentration dilution water, passes through each first dilution water branch pipe feeding the
In one dilution water module；Dilution water in second dilution supply mains is high concentration diluting water, is sent directly into the first dilution water module
In；High concentration diluting water is mixed with low concentration dilution water in the first dilution water module, formed through over-richness adjust it is dilute
Water is released, is then sent into by the second dilution water branch pipe in the second dilution water module；Wherein, is entered by each first dilution water branch pipe
The low concentration dilution water flow of one dilution water module is different；The dilution water adjusted through over-richness, is entered by each second dilution water branch pipe
When entering the second dilution water module, flow is identical with pressure, but concentration is different；
(2) slurry in head box behind balance cylinder by being sent directly into the second dilution water module, in the second dilution water mould
In block, the dilution water adjusted through over-richness is mixed with slurry, is formed after the slurry that over-richness is adjusted, is delivered to the turbulent flow of head box
In generator.
As described above, just can preferably realize the utility model, above-described embodiment is only preferable implementation of the present utility model
Example, not for limiting practical range of the present utility model；I.e. all equivalent changes and modifications made according to the utility model content,
All covered by the utility model claim scope claimed.
Claims (8)
1. a kind of device for changing dilution water concentration adjusting paper cross direction ration, it is characterised in that the one-level including being connected is adjusted
Section system and two grades of regulating systems, the outside of head box is provided with balance cylinder in the first dilution water module, head box to be occurred with turbulent flow
The second dilution water module is provided between device, the port of export of two grades of regulating systems is connected with turbulent flow generator；One-level regulating system
Including the first dilution supply mains, multiple first dilution water branch pipes, the first dilution water module and the second dilution supply mains, the first dilution
Supply mains is connected by multiple first dilution water branch pipes in parallel with the first dilution water module, and the second dilution supply mains is located at first
The side of dilution water module；Two grades of regulating systems include the multiple second dilution water branch pipes and the second dilution water mould being arranged in parallel
Block, the second dilution supply mains is connected by each second dilution water branch pipe with the second dilution water module.
2. a kind of according to claim 1 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
Each first dilution water branch pipe is stated provided with diluting water regulating valve, diluting water regulating valve is not provided with each second dilution water branch pipe.
3. a kind of according to claim 1 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
State in the first dilution water module, the water (flow) direction from the second dilution supply mains is parallel with the slurry stream direction in head box, stream
The water (flow) direction for entering the second dilution water branch pipe is also parallel with the slurry direction in head box, the water from the first dilution water branch pipe
Angle is formed between slurry stream direction in stream direction and head box；In second dilution water module, from the second dilution water branch pipe
Angle is formed between slurry stream direction in water (flow) direction and head box.
4. a kind of according to claim 1 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
It is clear water or the plain boiled water of clarification to state the dilution water in the first dilution supply mains；Dilution water in second dilution supply mains is dense white
Water, the concentration of enriched water is 0.05%~0.2%.
5. a kind of according to claim 1 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
The thinner ratio scope for stating one-level regulating system is 10%-30%, and the thinner ratio scope of two grades of regulating systems is 10%-15%.
6. a kind of according to claim 1 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
The structure for stating the first dilution water module is identical with the structure of the second dilution water module, the horizontal stroke by multiple dilution units along head box
Cross-wise direction is rearranged；Each dilution unit enters to starch section, mixing section and pulp section including what is be sequentially connected, enters to starch section top and is provided with
Dilute water inlet.
7. a kind of according to claim 6 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
State in the first dilution water module, enter to starch section and be connected with the second dilution supply mains, dilution water inlet is connected with the first dilution water branch pipe,
Pulp section is connected with the second dilution water branch pipe；In second dilution water module, enter to starch section and be connected with balance cylinder, dilution water inlet and the
Two dilution water branch pipes are connected, and pulp section is connected with turbulent flow generator.
8. a kind of according to claim 6 change the device for diluting water concentration adjusting paper cross direction ration, it is characterised in that institute
State into slurry section center line and dilute water inlet center line between into 80 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121330.5U CN206562541U (en) | 2017-02-09 | 2017-02-09 | A kind of device for changing dilution water concentration adjusting paper cross direction ration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121330.5U CN206562541U (en) | 2017-02-09 | 2017-02-09 | A kind of device for changing dilution water concentration adjusting paper cross direction ration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206562541U true CN206562541U (en) | 2017-10-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758471A (en) * | 2017-02-09 | 2017-05-31 | 华南理工大学 | A kind of device and method for changing dilution water concentration adjusting paper cross direction ration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106758471A (en) * | 2017-02-09 | 2017-05-31 | 华南理工大学 | A kind of device and method for changing dilution water concentration adjusting paper cross direction ration |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20200209 |