FI100345B - Method and apparatus for paper machine headbox adjustment - Google Patents

Abstract

Method of controlling cross-direction property profiles of a paper web (5). The method employs a control system (150) for regulating a headbox (3) or headboxes (3a, 3b) of a paper machine. Said property profile or profiles is/are measured by a measurement system (40, 140). The measurement signal thus obtained is supplied to said control system (150). The headbox (3) or headboxes (3a, 3b) is/are supplied with at least two feed streams (11, 12) which contain feedstuffs for the paper suspended in aqueous solution. The feed streams are divided into feed zones in cross-machine sections of the headbox (3) or headboxes (3a, 3b). Said feed zones are each supplied with combinatory streams of said feed streams (11, 12; 11, 12, 13; 11, 12, 13, 14). A property, such as, concentration and/or consistency and/or brightness and/or color and/or equivalent, of one or more feedstuffs of said feed streams (11, 12; 11, 12, 13; 11, 12, 13, 14) is measured. The thus obtained measurement signal is fed to said control system (150). Based on said measurements of the property profile or profiles and based on said measurements of said property and based on setpoint values, control signals are formed. By means of them, an actuator (10) or an actuator combination (10a, 10b) situated at each of said feed zones of the headbox (3) or headboxes (3a, 3b) is regulated, by which actuator or actuator combination combinatory proportions of different feed streams (11, 12) supplied to the feed zone are affected to achieve a desired property profile or profiles of the web (5).

Description

100345

Method and apparatus for adjusting the headbox of a paper machine Förfarande och anordning vid regiering av en inloppsläda i en pappersmaskin 5

The invention relates to a method for adjusting the cross-machine direction profile 10 of one or more machines of a paper machine, the method using a control system for controlling a paper machine headbox or boxes and measuring said feature profile or profiles with a measuring system at least two feed streams are fed to the headboxes, which contain the raw materials of the paper to be produced as an aqueous suspension and which feed streams are divided into cross-sectional areas of the headbox or headboxes into feed zones, each of which is supplied with combined streams of said feed streams.

20

The invention further relates to an apparatus for adjusting the cross-machine direction profile of one or more machines of a paper machine to be made on a paper machine, the apparatus comprising a control system for controlling a paper machine headbox or boxes and a measuring system for measuring said feature profile or profiles. control means and means for feeding at least two feed streams to the headbox or headboxes containing the raw materials of the paper to be produced as an aqueous suspension and means for dividing the feed streams in the cross-sectional areas of the headbox or headboxes into feed zones to each of them.

As is previously known on paper machines, the machine direction-35 basis weight control systems of the paper produced with it operate as follows. The flow of the pulp entering the wire well of the paper machine is controlled by a basis weight valve based on the measurement of the basis weight at the dry end of the paper machine. The basis weight of the paper web is measured with transverse measuring sensors in the transverse direction, and the measurement result of the transverse basis weight profile is averaged and derived as a feedback signal of the control system. As is known from the square pulp valve, the flow of thick pulp is led to a wire well, to which wire water is also introduced from the wire section of the paper machine 5. In the wire well, the thick mass flow and the wire water are mixed and the diluted mass flow thus obtained is fed to the headbox manifold through pulp cleaning and deaeration devices as is known per se and further through the headbox manifold, possible compensating chamber and turbulence generator to the headbox. A pulp suspension jet is discharged from the lip channel onto the forming wire or between the forming wires.

As is known, the transverse basis weight profile of paper machine paper is adjusted by profiling the headbox lip height based on the basis weight measurement described above at the dry end of the paper machine. Recently, the so-called dilution controls for supplying dilution water, usually wire water, or a dilute mass than the headbox mass to the transversely separate feed points associated with the headbox. This diluent-20 nus water supply system profiles the cross-sectional square mass profile of the lip jet with or without tip strip adjustment. Dilution control has the particular advantage that the headbox can be driven with an evenly high lip opening so that the transverse flows in the lip jet and thereafter due to the lip height profile and the resulting skew of the paper fiber orientation profile can be avoided.

The object of the invention is to enable a more precise and faster adjustment of the properties of the paper web by taking advantage of the new method 30 and the device arrangement and by taking advantage of the advantages offered by them.

It is an object of the present invention to utilize a combination of several recent technologies, including developments in dilution headboxes, concentration measurement devices suitable for the paper industry, and the development of control strategies provided by modern control systems.

H i * ItM Iin M i Hl i 3 100345

The previously known dilution headboxes are divided into several feed zones in the transverse direction of the headbox. In addition, each feed zone may have more than one layer. Two or more feedstocks serve each layer of the feed zones, and each flow of feedstock 5 may feed one or more feeder layers. Each feed zone of each bed is provided with means for adjusting the combined ratios of the flows fed to that feed zone, generally using a suitable valve arrangement. In addition, there may be one or more layers of feed zones that are fed with only one feed stream or that are fed with multiple feed streams without means for adjusting the combined portions of the feed streams for each feed zone.

Generally, two feed streams are used, one feeding the main feedstock and the other feeding the feedstock with different properties. Generally, the second flow is more dilute than the main raw material flow, but this need not always be the case. The dilution medium is usually wire water taken from a wire well or short cycle, often processed such as aerated, purified or filtered. 20 In general, the main raw material also contains wire water to which the thickener has been added. In some cases, water may be used as a diluent instead of wire water. More than two streams may be used so that the streams feed raw materials containing different material components; e.g., both wire water and water flow 25 can be fed as well as the main raw material flow.

Alternatively, the two main feed streams may introduce different feedstocks, while the third feed stream feeds the dilution medium. However, it is also possible that more than one stream contains 30 of the same feed, in which case all streams carrying an identical feed are treated as a single composite stream for the purposes of this invention. The applicability of the present invention requires that not all streams carry the exact same feedstock.

35 The flows fed to each feed zone are mixed together in any of several ways to produce a composite flow.

4,100345

The combined flows of all the feed zones mix to some extent in the adjacent zones, forming a uniform jet that discharges across the entire width of the headbox. As stated, the flows of adjacent feed zones may to some extent interfere with each other in said connection.

An example of a dilution headbox is VALMET SYM-FLO D ™.

For some details of dilution headboxes and similar structures, reference is made to the following patent and application publications: FI-92229 (cf. EP-0633352 A1) and US-5560807.

In some cases, several conventional (non-dilution) headboxes can be used to form a dilution headbox in combination. This is possible in the case that not all headboxes have the same feed streams and there is a difference in the compositions of the feed streams of a particular headbox. In this case, by modulating the lip opening profiles, a change in the combined ratios of the supply flows at each transverse point is achieved. However, the flows do not occur in such a way that the effect is the same as in the operation of the multilayer dilution headbox.

It should be noted that the raw materials used in the paper industry are diverse in composition, including many different material components in aqueous suspension. The main material components are fibers of different qualities, the properties of which depend on the origin of the fiber (spruce, birch, eastern hemlock, bagasse, kenaf hemp, etc.) and the pulp process used. Resin and synthetic polymers such as various clays, minerals (ash) and other inorganic materials can be added. Substances such as dyes, brighteners, anti-brighteners, bleaches and opacifiers may be present in amounts that have a negligible effect on weight, strength or other material properties of the web, but have a significant effect on color, brightness, opacity and other optical properties of the web.

It is also possible to use substances dissolved in an aqueous solution which affect its pH and other chemical properties, thus modulating the effect of other feedstock components on the properties of the web.

When forming the paper web, as is known in the art, water is initially removed from the pulp suspension through the permeable fabric (forming wire) into the wire well as wire water, leaving much of the suspended material to form the main web. The wire water in each cross-sectional area of the wire contains substantially the same suspended components as the suspension layer on top of it, but at lower concentrations. Generally, the wire water is combined from all cross-sections of the wire into a single flow. When multiple forming units are used, such as in the manufacture of a multilayer web, the wire water flows from each forming unit can be kept separate in the process or brought together into a composite wire water flow.

15

The fraction of each component of the lip jet that remains in the web is called the retention of that component. The various components may have significantly different retentions and the retention of some components is affected by the chemical properties of the aqueous suspension (such as pH) and the concentrations of other components (such as polymers). Thus, the wire water differs from the jet in the concentrations of its components. In addition, the retention of each component may vary differently depending on the process conditions.

25 The retention of each component generally increases if a thicker web is made, but to a different extent. The individual property of the web, such as weight, may vary in the transverse direction of the web, and since the composition of the lip jet may vary in the transverse direction of the web, the retention of each component in the lip jet may also vary in the transverse direction of the web. Since the wire water coming from the wire-30 well is a mixture transversely across the entire width of the machine from the wire water removed from the web, the average retention of the feed streams entering the headbox can be deduced from the concentration measurements.

35 Some paper machines produce only a few grades of paper and use substantially the same raw materials under substantially similar 6 100345 process conditions to produce a particular grade. In this case, each grade is likely to have a typical narrow range of retentions and there are small changes in concentrations in the main raw material flow or wire water.

5

In general, however, paper machines are made from raw materials of several qualities with different properties and the process conditions are set accordingly. In this case, the retention of each component can vary greatly within a certain quality and within several grades. In the same way, the concentrations of wire water can vary for each component differently for a given quality and for several grades. Large variations can occur with a certain quality within a short period of time.

Recycled fiber tends to have more varied properties than new fiber, and its use is increasing in many paper machines. The use of paper wrap varies at different times on machines of even one quality. Thus, the multiple feed streams fed to the dilution headbox generally contain each feedstock component at different concentrations. In general, the ratio of the component concentrations of the multiple feed streams is 20 different in each component. In particular, the wire water flow is relatively more concentrated for solutes and suspended solids than for fiber and relatively thicker for short fiber than for long fiber compared to the main feed flow.

• 25 The physical and chemical properties of most feedstock components vary considerably. This is due in part to their natural origin and in part to variations in their processing. These variations of the components, together with the variation in the mixing of the components during the formation of the feedstock, cause the feedstock properties to vary. Variation in short cycle operation in the paper machine may be an additional reason for variation in the properties of the feedstock.

Until recently, it has been laborious to perform non-superficial laboratory analyzes of the concentrations and other properties of typical paper industry feed streams. Thus, paper mill laboratories only measure total retention, and in practice, 7,100,345 in the paper industry, retention is considered a single quantity. More versatile laboratory instruments are available today, but because they are far from process and practical problems, headbox feed flow analyzes are rarely performed. In addition, laboratory assays are unlikely to be fast enough for control purposes when retention varies.

Devices that measure viscosity or "freeness" with consistency (combined concentration of suspended solids) 10 analogously have been available for several years, but have had poor reliability and accuracy. The technology used in these devices is not suitable for low consistency ranges, such as those found in headbox feed flows. Thus, said devices are rarely installed in connection with headbox feed streams and have not previously been used in dilution systems for cross-machine adjustment.

Newer, more versatile measuring devices are suitable for continuous and fast measurement of low-density flow concentrations. These devices are capable of measuring concentrations of different components or concentrations of different combinations of component groups (such as total ash concentration or total fiber density) instead of or in addition to measuring total density.

25 An example of such a concentration measuring device is the device marketed under the trade mark KAJAANI RM-200 ™.

In addition to concentration measuring devices, instruments are available that can measure on-line other feed flow characteristics 30 such as sample color or brightness and / or sample fiber length distribution.

Other factors such as pH or temperature can determine the extent to which the properties of the feedstock affect the properties of the web. Devices for measuring pH, various dissolved ionic species (such as pNa, pK, etc.) 8 100345 or temperature are commonly available and some of these devices are suitable for use in headbox feed flow measurements.

Several properties of the moving web can be measured in the manufacture of paper. Generally, a paper machine is equipped with a plurality of measuring devices that traverse the moving web at one or more points on the paper machine. Alternatively, a set of sensors may be used positioned across the web, or fixed sensors may be able to measure properties over the distance across the web. Typical measurable properties include basis weight, water weight, ash weight, thickness, gloss, brightness, opacity, fiber orientation, and strength. Some of these properties can be measured more accurately, such as to distinguish between different ash species (Al 2 O 3, CaCO 3, SiO 2, TiO 2, etc.). Other properties such as dry weight or moisture content can be derived from these measurements.

15

Measurements of web properties are made in the transverse direction of the machine at several different points in the web and thus a transverse "profile" of the web is obtained. In modern measuring systems, the transverse measuring division of the web can be less than 1 cm wide. The system for controlling the multiple values of said characteristic profile generally comprises means for inputting the desired shape of the profile. In addition, several features can be used, each with a different desired profile format.

In addition, the properties of the suspension discharged from the headbox can be measured as the web is formed on the wire. These measurements are also within the scope of the measurements of the properties of the web of the present invention, provided that the property in question is measured in the transverse direction of the machine at several points.

30 *

The ability to adjust the combined ratios of each feed zone of the feed streams makes it possible to adjust the properties of the web as it is manufactured. A change in composite ratios in all feed zones in the transverse direction of the headbox may affect one or more web properties 35 at all points across the transverse direction of the web. A change in the composite ratios of a single feed zone .. may affect one or more properties of the web 9 100345 over a portion of the width of the web. The width of the affected portion of the web may not correspond to the width of the feed zone, and the effect may be unevenly distributed over the width of the affected area in terms of its size and signs. When more than one property is affected, the effect on each property may be differently distributed to different portions of the web in the transverse direction, which may vary in width and location.

The effect on the material property of the web, such as the ash weight, of the change in the combined ratio of the feed streams depends on the different concentrations of each component of these streams that affect that property.

The effect on other properties of the web, such as color or opacity, depends on both the material properties of the feed streams and the non-material property such as brightness. The retention of each feed flow component over the affected portion of the web can also affect the magnitude of the effect, and this retention can also be affected by several measurable properties of the feed flows, such as pH and temperature.

The control system can more efficiently modulate the combined portions of the feed flows if it can more accurately model the process effect of that modulation for each controllable modulation. This modeling requires that these feed flow properties be measured and that the dependencies between the feed flow properties and the web properties are mainly known. Several of these dependencies are well known.

Because multiple feed streams in a dilution headbox contain different feedstock components in different relative proportions, and because each feedstock component affects one or more web properties to varying degrees, it is apparent that a change in the combined feed flow rates may affect multiple web properties differently. For example, when two feed streams are used in the dilution headbox, one is wire water and the other is the main pulp, the web fibers are fed primarily by the main pulp flow, but the ash component can be fed to the same extent at both flows. Thus, changing the combined portions of the feed streams in one or more feed zones clearly affects the fiber and ash profile of the web differently.

5

Control systems are known in the art which can effectively modulate one or more actuator systems arranged in the transverse direction of a paper machine to control one or more feature profiles. The control of web properties can be promoted by providing appropriate measurements of the properties of the plurality of feed streams to the control system and using a process model that explains changes in web properties relative to the combined feed flow portions and feed flow properties.

15 An example of such a control system is the system marketed under the trade mark VALMET DATA-MATIC XD ™.

With regard to known control systems for a paper machine, reference is also made by way of example to U.S. Pat. No. 5,381,341 (corresponding to EP patent 0401188 and FI-208531).

The use of concentration or other effective measurements of headbox feed flow properties that are suitably accurate and reliable provides a control system that can better adjust web property profiles by modulating the combined feed flow ratios in each headbox feed zone.

In order to achieve the above and later objects, the method of the invention is mainly characterized in that the property of one or more raw materials of said feed streams such as concentration and / or consistency and / or brightness and / or color and / or the like is measured and the measurement signal thus obtained input to said control system that, based on the measurement of said characteristic profile or profiles and said characteristic such as concentration and / or 35 consistency and / or brightness and / or color and / or the like and setpoints or the like, 11 100345 control signals are generated to control the headbox or headboxes; an actuator or combination of actuators in each of said feed zones to affect the combined portions of the various feed streams to be fed to that feed zone to achieve the desired web property profile or profile; to achieve.

The device according to the invention, in turn, is mainly characterized in that the device further comprises in combination the following means: means for continuously or intermittently sampling each of the two or more feed streams fed to the headbox or headboxes, means for measuring the properties of said feed streams / or the brightness and / or color of said samples, and adjusting means for adjusting the combined proportions of said feed streams in each of the plurality of headbox or headbox feed zones in its / their transverse direction, means for feeding measurements of said feed flow characteristics or factors calculated therefrom 25 which respond to one or more of the measured properties of the paper web and modulate the above combinations adjusting the portions of the paper web above-mentioned properties.

The present invention employs means for continuously or intermittently sampling material in each of two or more * feed streams fed to a headbox, the headbox being provided with means for adjusting the combined portions of said feed streams in each of the plurality of headbox feed zones. such as a concentration of said sample components and further means for inputting said measurements or factors calculated therefrom to any control means responsive to one or more of the measured properties of the web and modulating the aforementioned combination portions to control the aforementioned properties.

The novelty of the present invention is the use of sampling means for two or more feed streams of a headbox, which headboard is thus provided together with means for measuring properties such as the concentrations of components of said samples together with means for feeding said measurements or factors calculated therefrom to means for adjusting the properties of the web during its manufacture.

Advantages of the present invention include more efficient modulation of the combined feed flow portions by any control means responsive to one or more web properties, said means including modulation means for the combined feed flow portions of the feed pulp suspension in each of the plurality of headbox 20 transverse feed belts. This advantage is most important in situations where one or more feed streams are or are likely to be subject to a change in the concentration of one or more of its components or a change in brightness or color or a change in another measured property as said change occurs continuously or intermittently and to varying degrees.

Feed flow property measurements are used to calculate effective coefficients of proportionality between changes in the combined flow rates and changes in web properties affected by said feed flow properties and combined rates. These effective proportionality factors may be changes in the average composite portions of the headbox transverse feed streams, and may also be, or alternatively, changes in the composite portions of each headbox feed zone. These effective proportionality factors may be for changes in the average of the transverse web property or a local property for a different cross-sectional portion of the web machine 13, said portion generally corresponding substantially to the feed zones, but may alternatively correspond to a narrower or wider web portion.

5 Normally, each feed flow in the headbox is sampled or these flows are sampled when combined to form each feed flow. However, it is not necessary to measure each property of all feed streams because it may be known that a particular property does not occur or is constant in some feed flows. 10 It is also possible that some feed streams will be omitted without sampling and without characteristic measurements. If, for example, the feed flow brings in clear fresh water, it is not necessary to measure the amount of fiber in this flow, because it is known a priori that the flow does not contain fiber. Similarly, if the flow is formed by dispensing a color component having a substantially known hue and intensity, it is not necessary to measure the color of the resultant flow for a flow whose color is substantially known and the dosing ratio is adjusted and known, since its color can be calculated ab initio from known quantities.

20 Each flow sampling device may be located at any suitable location on the flow. In the event that a sample of the flow is fed to more than one concentration or other property measuring device, the flow measuring device may be provided for each property measuring device or the flow measuring line may be divided into several property measuring devices.

Normally, the sampled flows are the main mass flow and the dilution flow, or flows that are primarily combined to form the main mass flow and the dilution flow, and each flow sampling means may be located at any suitable flow point if more than one means is used to measure concentration or other characteristic. the means provide a sample of the flow, and flow sampling means may be used for each characteristic measurement, or the flow sampling means may be divided into a plurality of feature measuring means.

14 100345

The means for measuring concentration or other property may be one or more instruments permanently or temporarily attached to the flow sampling means, or they may be one or more instruments located at a distance from the flow sampling means to which the samples are to be brought. Additionally or alternatively, the flow sampling means may be integrated with the concentration or other property measuring means, including cases where the flow is sampled within the flow by applying an element or means 10 to the flow to measure the property. The flow sampling means may be autonomous or manually operated and the sample property measuring means may be autonomous or manually operated. The means for measuring the properties of the sample may consist of a laboratory procedure performed manually or mechanically.

15

Each concentration measuring device may be sensitive to the concentration of one or more components of the flow sample, or it may be sensitive to the combined concentration of the component of the flow sample combination, or it may respond to individual or combination concentrations.

The measured concentrations are generally the concentrations of components such as a particular fiber type or a particular chemical, or the concentrations of a combination of components such as total fiber content or total ash content. Each measuring device for other properties may react to one or more optical properties such as brightness or color * 25 or it may react to one or more thermal or mechanical properties or viscosities or it may react to a chemical property such as pH or another property such as conductivity or magnetic resistance. In practice, a single instrument can perform measurements of multiple properties, which properties may include concentration, optical, electromagnetic, thermal, mechanical, and chemical properties.

In the following, the invention will be described in detail with reference to some embodiments of the invention shown in the figures of the accompanying drawing, to the details of which the invention is in no way narrowly limited.

15 100345

Figure 1 schematically shows a simple embodiment of the invention.

Figures 2a, 2b and 2c schematically show variants of the arrangements of certain parts of Figure 1.

5

Figure 3 schematically shows a second embodiment in which a third feed stream is fed to a headbox.

Fig. 4 schematically shows another embodiment of the invention, in which the headbox 10 has two layers of feed zones, each of which uses independent modulation of the composite portions.

Figure 5 schematically shows another embodiment of the invention in which the lip opening of the dilution headbox is modulated together with the modulation of the combined portion of the feed flow of each feed zone.

Figure 6 schematically shows another embodiment of the invention in which two dilution headboxes are fed with two feed streams each and the webs of which are joined during manufacture.

20

Fig. 7 schematically shows a variation of the embodiment shown in Fig. 1, in which the adjusted web property profiles are measured at several positions of the paper machine, including a web measuring device located in the former part.

25

Figure 8 schematically shows another embodiment of the invention, in which two conventional headboxes are fed at different feed flows and their webs are joined during papermaking.

Figures 9, 10, 11 and 12 show in block diagrams embodiments of the invention comprising methods for adjusting web properties.

Figures 13a, 13b, 13c and 13d show variations of certain parts of the embodiments of the previous figures.

35 16 100345

Figure 1 schematically shows an embodiment of the invention with a dilution headbox 3 provided with two feed streams 11 and 12. A second stream 11 feeds the pulp suspension, while a second feed stream 12 feeds the dilution medium. Said two feed streams 11,12 supply each feed zone of the headbox 3 using a suitable valve arrangement 10. The valve arrangements 10 of the feed zones of the headbox 3 are controlled by a computer or other instrument 110 which can communicate with other computers or instruments. Each feed stream 11,12 is provided with 10 flow sampling arrangements 21,22 and these flow sampling arrangements 21,22 are connected to concentration measuring devices 31,32 which measure one or more concentrations or other properties of the flows.

The supply flow characteristic measuring devices 31, 32 are connected to a computer or other instrument 130 which can transmit the measured characteristics or the factors calculated therefrom to other computers or instruments. The lip jet of the headbox forms a paper web 5 which moves through the paper machine. A measuring device 40, generally a measuring bar 20 with a traversing sensor base and fitted generally to the dry end of a paper machine, measures one or more properties of the web 5 at various points in its transverse direction as the web 5 passes the device 40. This device 40 is connected to a computer or other instrument 140 that can communicate with other computers or instruments.

The control system 150 communicates with computers or instruments for controlling the feed zones, computers or instruments 130 for measuring the properties of the flow, and computers or instruments 140 for measuring the properties of the web 5. The control system 150 controls one or more profiles of the web 5 obtained from the measurement system 140 of the web 5, 30 by modulating the combined portions of the two feed streams 11,12 in each feed zone utilizing the actuator system 110 and utilizing feed flow characteristic flows or factors calculated therefrom. obtained from the flow measurement system 130 for both flows 35,12. Typically, devices 151 are used to produce 17,100,345 information about the control system to the operators and by which the operators enter commands or setpoints to the control system.

The number of feed zones may be greater than three and the feed zones 5 may be the same or different in capacity and characteristics. It is not necessary that all flow combining means be identical and not all need to be modulated by the web property profile adjuster, provided that at least three are so modulated. Different measuring and control systems can be implemented using a larger or smaller number of elements than shown. Several means 151 may be used in connection with the operating personnel or may be without these means, and when several such means are used, they may be identical or different from each other.

15

It should be noted that Figure 1 shows three feed zones, but the embodiment comprises several feed zones with the same or different flow capacity evenly or unevenly distributed in the transverse direction of the headbox. It should be emphasized that the main functions of the different systems 20 can in practice be combined with a smaller number of different units or divided into a larger number of units. It should be noted that the concentrations or other properties of the feed flows are used in the control calculations to adjust the properties of the web 5 by modulating the combined portions of the feed flows in each feed-25 zone of the headbox 3.

Fig. 2a schematically shows a simple variation of the above-described embodiment shown in Fig. 1. In this variant, the feed flow has two sampling arrangements 21,26, each of which has 30 flow characteristics measuring devices 31,36. These devices 31,36 'are connected to a computer or other instrument 130 that can communicate with other computers or instruments. In its control calculations, the control system 150 uses measurements of the feed flow property or factors calculated therefrom obtained from the flow measurement system 130 for all three flow measuring devices 31,32,36.

18 100345

Figure 2b schematically shows a simple variation of the embodiment shown in Figure 1 and described above. In this variant, both feed flows 11,12 have two sampling arrangements 21,22, 26,27, each with a single device 31,32,36,37 for measuring the characteristics of the flow 5. These devices are connected to a computer or other instrument 130 that communicates with other computers or instruments. The control system 150 uses in its control calculations the flow characteristic measurements or the factors calculated therefrom obtained from the flow measurement system 130 for all 10 four flow measuring devices 31,32,36,37.

Fig. 2c schematically shows a simple variation of the embodiment shown in Fig. 1 and described above. In this variant, the two property measuring devices 35,36 are connected to one sampling arrangement 15. These devices are connected to a computer or other instrument 131 which communicates with other computers or instruments. The control system 150 uses in its control calculations the characteristic measurements of the supply flow or the factors calculated therefrom obtained from both flow measuring systems 130,131, which are 20 for the four flow measuring devices 31,32,35,36.

Figure 3 shows a variation of the embodiment shown in Figure 1 and described above. In this variant, three feed streams 11,12,13 are fed to each feed zone of the headbox 3 and each feed zone of the headbox 3 3 comprises devices 10 with modulatable flow portions 11,12,13 of each of the three feed streams. The sampling arrangement 23 of the third flow 13 is connected to a supply flow property measuring device 33 connected to a computer or other instrument 130 which can transmit the measurements to others. 30 for computers or instruments. The control system 150 adjusts one or more profiles detected by the web 5 measurement system 140 by modulating the combined feed flow portions in each headbox 3 feed zone utilizing actuator system 110 and utilizing feed flow property 35 measurements or factors derived from each flow flow system 130 in control calculations. For 11,12,13.

The control system 150 adjusts one or more profiles of the web 5 detected by the measurement system 140 of the web 5 by modulating the combined portions of the three feed streams 11,12,13 in each feed zone utilizing the actuator system 110 and utilizing concentration measurements or factors calculated therefrom in the control calculations. obtained from the flow measurement system 130 for each of the three flows 11,12,13.

Figure 4 shows a variation of the above-described embodiment 10 shown in Figure 1. In this variant, three feed streams 11,12,13 are fed to a dilution headbox 3 provided with two layers of independently modulated feed zones. One feed stream 13 feeds only the upper layer, the second feed stream 11 feeds both feed streams, and the third feed stream 12 feeds only the lower layer. The combined portions of each feed zone in each of the two layers of the headbox feed zones are modulated by suitable valve arrangements 10a, 10b for each layer. The valve arrangements 10a, 10b of the headbox feed zones in both layers are controlled by a computer or other instrument 110,111, 20 which can communicate with other computers or instruments. The control system 150 adjusts one or more profiles detected by the measurement system 140 by modulating the combined portions of the feed flows in each feed zone and each floor utilizing its actuator system 110,111 and utilizing the feed flow property measurements or factors concerned. In addition, the control system 150 may similarly modulate the composite portions of the layers, either the entire layers or the layers of their subdivisions.

30

The number of feeder layers may be greater than two, and not all means need to have means for combining the flows in their feeder zones. In addition, all layers with means for combining flows in their feed zones do not need to be modulated with a web property profile adjuster. The means for combining the flows of the feed zones in the different layers may be the same or different in capacity and properties. The number and characteristics of the feed zones and other ancillary means may differ from one layer to another, but at least one layer must have at least three flow combining lines, these means being modulated by a profile controller.

The embodiment of Figure 4 can be generalized to more than two layers having the same or different characteristics. The number of feed flows to the feed zones may vary in different layers.

10 Each feed stream can feed one layer or more than one layer. More than one feed stream may carry the same feedstock, provided that at least one layer of feed zones is fed by one or more different feed streams.

Fig. 5 shows a variation of the above-described embodiment shown in Fig. 1, which also uses an arrangement 15 for modulating the lip opening of the headbox 3 at several points in the transverse direction of the web 5. The lip box lip modulation arrangement 15 is controlled by a computer or other instrument 115 that can communicate with other instruments or computers. The control system 150 controls one or more profiles detected by the measurement system 140 by modulating the combined flow rates in each feed zone of the headbox 3 with its actuator system 110 and modulating the lip shape of the headbox 3 with its actuator system 115 and '25. 130 for both flows 11.12.

In the embodiment of Figure 5, one or more feature profiles may be adjusted by combined modulation of the combined portions of the feed flow and the shape of the lip opening. In general, two or more property profiles are of interest, such as fiber orientation and dry weight or thickness.

Fig. 6 schematically shows a variation of the above-described embodiment 35 shown in Fig. 1, in which four feed streams 11,12,13,14 are fed to two dilution headboxes 3a, 3b provided with 21 100345 independently modulated feed zones and in which the webs 5a produced by the headboxes 3a, 3b is combined into one dough 5 before the measuring device 40. The two feed streams 11,12 feed only the lower headbox 3a and the other two streams 13,14 feed 5 only the upper headbox 3b. The combined portions of each feed zone in both headboxes 3a, 3b are modulated by means of suitable valve arrangements 10a, 10b in each headbox 3a, 3b. The valve arrangements 10a, 10b of the supply zones in each headbox 3a, 3b are adjusted by a computer or other instrument 110,111 which can communicate with other instruments or computers. The control system 150 adjusts one or more profiles of the web 5 detected by the measurement system 140 by modulating the combined portions of feed flows in each feed zone of each layer utilizing actuator system 110,111 and utilizing feed flow property measurements or For 31,32,33,34. In addition, the control system 150 can similarly modulate the composite portions of the layer headboxes 3a, 3b, either for the entire headboxes or their transverse portions 20.

The number of ferroxes can be greater than two, and all different headboxes need to be equipped with devices to combine the flows in their feed zones. In addition, not all head plate-25s having means for combining the flows of their feed zones need be modulated by the web property profile adjuster. The means for connecting the headbox feed zones may be the same or different in capacity and characteristics. Number of feed zones and associated equipment and. The characteristics may differ from one headbox to another, but always at least one headbox must be provided with at least one layer with at least three flow combining means so that said means are modulated by a profile controller.

35 This embodiment can be generalized to more than two headboard packages having similar or different properties and in which the webs of the two are combined during manufacture. Each headbox can have its own former or for more than one headbox can have the same former !. To adjust the property profiles of the web, several headboxes are analogous to a single headbox, where the number and type of layers correspond to the sum of the layers of the headbox in use.

Fig. 7 shows a simple variation of the above-described embodiment shown in Fig. 1. In this variant, three web measuring devices 40,41,42 are located in different positions on a paper machine and each is connected to a computer or other instrument 140,141,142 which can communicate with other computers or instruments. The control system 150 controls one or more profiles produced by one or more web measuring instruments 140,141,142 by modulating in each feed zone the combined portions of the two feed streams using the actuator system 110 and applying flow measurements of the 130 for both streams 11 and 12.

20

Different measuring devices and systems can be implemented using more or less number of elements than shown. The web measuring device may be connected to more than one web measuring computer or instrument, and the web measuring computer or instrument may be connected to more than one web measuring device. A web measurement computer or instrument may be incorporated into a web measurement device.

When using means for measuring web property profiles at different positions of the machine, each of these means can measure one or more or all of the property profiles to be measured. Each measured property profile can be measured by one or more or all means. When multiple means are used, each of which measures a plurality of web property profiles, each of the plurality of means may measure the same or different web property profiles.

23 100345

Fig. 8 schematically shows a second embodiment of the invention, in which different supply flows 11,12 are fed to two conventional headboxes 3a, 3b. The arrangement for modulating the lip opening of each headbox is adjusted by a computer or other instrument 115,116 which can communicate with other computers or instruments. The control system 150 adjusts one or more profiles obtained by the web measurement system 140 by modulating the combined portions of the feed flows in each feed zone of each layer of the headbox utilizing lip actuator systems 15a, 15b, 115 and 10 utilizing feed flow characteristic measurements or from feed flow property measuring devices 31,32. In addition, the control system 150 may likewise modulate the combination portions of the headboxes, either for the entire headboxes or for their regions.

The number of headboxes may be more than two and not all headboxes need to have means for modulating their lip openings. In addition, not all headboxes with lip modulation means need to be modulated by the web property profile adjuster. The number of lip modulation means may be greater than three and may be evenly or unevenly distributed over the lip and may have similar or different capacities across the lip. The number and characteristics of the lip modulation means may vary from head to head, but at least one head box must have at least three means for modulating its lip so that those means are modulated by the profile adjuster.

Two conventional headboxes, within the scope of this invention, are used as if they formed a single dilution headbox, in which modulation of the lip opening shape of each headbox alters the profile of the combined lip jet portions. This embodiment can be generalized to more than two headboxes with the same or different properties and in which their webs are joined during manufacture. In the control of web property profiles, several conventional headboxes 24 100345 are analogous to a single dilution headbox, where the number and type of feed streams correspond to the sum of the feed streams of the individual headboxes.

Figure 9 shows method block diagrams of another embodiment of the invention for adjusting the web property profile by modulating the combined portions of the two flows into multiple feed zones of the dilution headbox, applying feed flow property measurements in the calculations. The property measurement is arranged for each of the two feed-10 flows m31, m32. These measurements are used in the calculation unit 230 to obtain an effective proportionality factor p41 between the changes in the combined proportions of the two feed streams and the changes in the property of the adjustable web. The measured profile m41 of the web property and its setpoint profile s41 are input to the calculation unit 241, which produces the difference profile e41 of the web property. The proportionality factor p41 and the web property difference profile e41 are utilized in the profile control means 210 by modulating its output s10, which is normally the composite portion setpoint or setpoint profile for means that substantially determine the composite portion profile.

20

Only the essential elements are shown in this block diagram. In addition to those shown, the comparability factor calculation unit 230 may utilize other measurements and factors that may be required to determine the process relationship between the property of the adjustable web and the properties of the feed flow. The proportionality factor p41 may be a single value across the entire headbox, or it may be a profile of values, each valid in one or more feed zones in the headbox and in some areas of the web across the machine, where the number of rows of value matrices does not have to be the same.

30 The proportionality factor p41 can be produced directly by the supply flow characteristic measuring means. The web property profile controller 210 may utilize other measurements and factors in addition to those described above. The web characteristic profile difference e41 calculation unit 241 may be included in the controller 210 and may use weighting factors or nonlinear operators in addition to simple difference calculation.

The operations performed in the controller 210 may be any of the well-known algorithms for profile control, including, but not limited to: i) a series of PID-type controllers, each of which controls a single feed zone or a group of adjacent feed zones and is equipped with individual controllers with or without cross-link compensation, ii) optimizing the penalty function generated using nonlinear operations on the difference profile, such as squaring or summation, said penalty function may also include other nonlinear operations on other profiles such as a composite contribution profile, said addition being a weighted sum includes minimization input using zone combination portion settings and optionally using a simulation of the resulting difference profile (iii) a set of controllers applying fuzzy logic techniques, each controlling a single feed zone or a group of adjacent feed zones, with or without cross-compensation of individual controllers; (iv) a neural network with differential profile inputs inter alia and a combination of wherein said network is taught or has the ability to learn to adjust its outputs so that its inputs are driven towards zero.

These operations may further comprise any well-known profile compensation method in the time domain, including but not limited to: i) a set of Smith predictors and variants thereof, including variants with model parameter recognition for prediction, ii) a set of Kalman filters.

Fig. 10 shows a variation of the embodiment shown in Fig. 9 and described above. In this embodiment, the second web property profile

10OI4S

26

The measurement m42 and its setpoint profile s42 are fed to the calculation unit 242, which produces the characteristic difference profile e42 of the second web. The vertexity factor calculation unit 230 provides a second effective proportionality factor p42 for the relationship between changes in the composite portions of the two feed streams and changes in the second profile. Both the proportionality factors p41 and p42 and both the web property difference profiles e42 are utilized in the profile control means 230 by modulating its output.

10 The methods for calculating the second property difference profile and the second effective proportionality factor of the web may differ from those of the first. The operation of the profile adjusting means may be modulated using weighting factors or the like, such as a procedure in which the adjustment of one profile takes precedence over the other or the adjustment effects are compromised between one or the other adjustment.

Fig. 11 shows a variation of the above-described embodiment shown in Fig. 9. In this embodiment, a third feed flow characteristic measurement m33 is used, which is fed to a calculation unit 230 which produces effective proportionality factors p41a, p41b for the central relation between the changes in the combined portions of the three feed flows and the changes in the adjustable profile. Both the proportionality factors p41a, p41b and the web difference profile e41 are utilized by the web property profile control means 210 to modulate its outputs sl0a, sl0b, 25, which are normally setpoint profiles or setpoint profiles for combination means substantially determining the combination.

Fig. 12 shows a variation of the above-described embodiment 30 shown in Fig. 9. In this embodiment, a second characteristic measurement is used for each of the two feed streams m36, m37, which measurements are fed to a calculation unit 230 which produces an effective proportionality factor p41 describing the central relationship between changes in the combined portions of the two feed streams and adjustable profile changes.

The computing unit 230 uses measurements of the properties of both supply flows to provide an effective proportionality factor p41.

Si r Iän lii II li il M

27 100345

Fig. 13a schematically shows a simple variation of the above-described embodiment shown in Fig. 9. In this variant, means 215 are applied for converting the composite portion setpoint profile s10 into the setpoint profile 5 s15a, s15b of the two headbox lip so as to obtain said composite portion profile between the two headboxes. In addition, means 225 can also be used to calculate the prevailing composite portion profile ml0 from the measured lip opening profiles ml5a, ml5b. Means 215 and 225 may optionally utilize additional measurements and factors in their calculations.

10

Fig. 13b shows a simple variation of the above-described embodiment shown in Fig. 9. In this variant, the prevailing composite portion profile m10 is also fed to the web feature profile adjustment means 210 for use therein.

15

Fig. 13c schematically shows a simple variation of the above-described embodiment shown in Fig. 9. In this variant, the web feature profile adjustment means 210 modulates both the profile s10 of the combined portions of the two feed streams and the profile s1 of the headbox lip 20. In addition, the prevailing lip opening profile s15 can be fed to the web feature profile adjustment means 210 for use therein.

Fig. 13d schematically shows a simple variation of the above-described embodiment shown in Fig. 9. In this variant, the prevailing composite contribution profile m10 and the measured web property profile m41 are also fed to a calculation unit 230, which can use them to calculate the profile or matrix of the effective proportionality factors p41.

30

Other embodiments of the invention are obvious modifications of the main features of the invention described above and their generalizations. For example, an immediately obvious generalization is the application of the present invention to multilayer machines with one or more dilution headboxes and one or more conventional headboxes.

28 100345

In all these embodiments, the measurements of the concentrations and / or other properties of the feed flows make it possible to calculate the effective proportionality factors between the combined proportions of the feed flows and the changes in the transverse property profiles 5 of the web.

Accurate and timely calculation of said proportionality factors greatly increases the potential efficiency of the control system, as most control algorithms can use them advantageously. As the feed-10 flow concentrations change, the controller can detect the combined portions of the feed streams in the headbox feed zone and thus compensate for said changes before adverse changes in the controlled properties of the web occur.

15 In addition, the precise knowledge of said proportionality factors makes it possible to modulate the combined portions of the feed flows of the headbox feed zones more precisely. Because the effect of modulation is well known, the controller can make an accurate correction instead of an approximate correction in response to both a process disturbance and a change in setpoint.

An example of a comparative technique

As an example of an effective proportionality factor, the characteristic W (such as dry weight or ash weight) of the web 5 between WA in the transverse subdivision i of the web 5 and the combined feed portion Kj of the headbox feed zone j, where a constant (such as total density or ash density) for this property, the measured concentration of CD in a flow of Kj and the measured concentration of Cs in a flow of 1-Kj can be calculated from the following formula: 3Wi Rji (cD-cs) Wi 35 dKj CDKj + Cs (l-Kj ) 8 I 18: 1 lii H li: 29 100345 where Rji is a constant indicating the degree of effect of the headbox feed zone j on the property of the transverse portion i of the web. The above formula defines a matrix of proportionality values, each of which is affected by one headbox feed zone 5 and one web sub-area. Other formulas can be used to express the ratio of properties such as opacity, brightness, or color of the web 5 to the TiO 2 concentration or the brightness of the feed streams. Likewise, other formulas may be used to explain the relationship between the other properties of the web and the properties of the corresponding feed flows.

Although certain embodiments of the invention have been described in the embodiments and drawings described above, it is to be understood that the invention is not limited to the embodiments shown. The applicability of the invention extends to other combinations of features shown in various embodiments and drawings. The applicability of the invention extends to the obvious generalizations of the various details.

Although reference is made in the drawings and embodiments to a certain number of feed streams and to certain combinations of feed stream feedstocks, it is to be understood that this invention is not limited to the details shown. The applicability of the invention extends to any number or arrangement of feed streams, provided that they are fed transversely to the headbox into a plurality of feed zones and provided with means for modulating the combined portions of each feed zone using any combination of said feed streams. The invention also includes arrangements for computer communication connections and other devices other than those shown, which may vary freely in the various embodiments of the invention.

Although the illustrated embodiments and drawings refer to certain feature profiles and certain transverse actuator systems (other than the feed flow portion profile), it is to be understood that this invention is not limited to the details shown. The invention includes any feature profiles or combinations of feature profiles. The invention includes the control of one or more profiles by modulating another system acting in the transverse direction in addition to the modulation of the profile of the feed flow portions.

5

Although the application examples and drawings shown generally refer to a single headbox, it should be noted that the invention is not limited to a single headbox control configuration. The invention encompasses multi-box arrangements having one or more dilution headboxes, a system for modulating the combined portions of two or more feed streams in each of the plurality of feed zones, and measuring properties such as concentration of samples of multiple feed streams fed to one or more of said dilution head boxes. It is within the scope of the invention to control a plurality of dilution boxes synchronously as a combination and as combinations of dilution headboxes and conventional headboxes.

At the core of this invention is the use of any particular formula for calculating effective proportionality factors for adjusting the property of one or more webs, and at its core is the use of any particular means for adjusting headbox operation to control one or more properties of the web. At the heart of the present invention is the use of headbox two or more feed flow sampling means as described above in conjunction with said means for measuring component properties and the use of measured properties or factors calculated therefrom in any formulation using any means for adjusting web properties during manufacture. modulate the combined portions of the feed streams of the transverse multiple feed zones of the headbox.

The following claims set forth within the scope of the inventive idea, the various details of the invention may vary and differ from those set forth above by way of example only.

35 b i i Bttic an · i i, 1 «a

Claims (16)

31 100345 A method for adjusting the cross-machine direction profile of one or more machines of a paper machine (5), the method using a control system (150) for adjusting a paper machine headbox (3) or headboxes (3a, 3b), the method measuring said profile or profile (40,140), from which the measurement signal is fed to said control system (150) and to which headbox (3) or headboxes (3a, 3b) are fed at least two feed streams (11, 12) containing raw materials for the paper to be produced in aqueous suspension and distributed to the headbox (3) or in the transverse regions of the headboxes (3a, 3b) to the feed zones to each of which the combined flows of said feed streams (11,12; 15 11,12,13; 11,12,13,14) are fed, characterized in that said feed flows (11.12; 11,12,13 11,12,13,14) a property of one or more raw materials such as concentration and / or consistency and / or brightness and / or color and / or the like is measured and the measurement signal thus obtained is fed to said control system (150), 20 that said property profile on the basis of the measurement of said or profiles and said property such as concentration and / or consistency and / or brightness and / or color and / or the like, and on the basis of setpoints or the like control signals are generated to control each of the headbox (3) or headboxes (3a, 3b) 25 actuators (10) or actuator combinations (10a, 10b) in the feed zone to affect the combination portions of the different feed streams (11, 12) to be fed to said feed zone to achieve the characteristic profile or profiles of the target web (5). Method according to Claim 1, characterized in that the CD property profile (s) to be measured and / or to be achieved are selected from the group consisting of basis weight, ash weight, thickness, brilliance, brightness, color. , opacity, fiber orientation, strength, dry matter, moisture content and / or various components of the ash weight and / or various components such as ash weight and / or various color parameters such as: 32 100345 (i) reflection spectrum; (ii) permeability spectrum; (iii) hue, color intensity, value; iv) Hunter L, a, b; 5 v) CIE L *. a *, b *; vi) CIE tristimulus; and / or various color attributes such as: (i) whiteness; (ii) brightness; 10 iii) hue; (iv) purity; v) dominant wavelength; vi) fluorescence index; (vii) the metamerism index. 15 3. For a patent according to claims 1 or 2, the invention is intended to be consistent with the composition of the maturation process (11) and the energy efficiency of the process, the heat exchanger and the power supply (12). - 20 trations and / or consistency of the other components in the composition. Method according to Claim 1 or 2, characterized in that in the method the second feed flow (11) is a controlled consistency mass flow and the second feed flow (12) is a dilution water flow, preferably a wire water flow, the concentration and / or consistency of one or more components of the flows being measured. 4. For the purposes of claim 1, 2 or 3, the non-essential elements of the invention (11,12,13) apply to 25 embodiments, the colors of which are shown in the invention (3). ) or utterpslädorna (3a, 3b) (Fig. 3). Method according to one of Claims 1, 2 or 3, characterized in that the method uses three different feed flows (11, 12, 13), each of which feeds each of the feed zones of the headbox (3) or headboxes (3a, 3b). (Figure 3). 5. For the purposes of claims 1, 2 or 3, both of which are shown in the invention (3), the maturation of the mattresses (11, 12, 13), colors and mattresses (12,13) of the matrix (see) the first and third step (3) and the third step (11) of the first and second step (11a, 10b) (11,12; 11,13) combinations and 35 regulators (Fig. 4). 100345 38 Method according to one of Claims 1, 2 or 3, characterized in that the headbox (3) is fed by three different feed streams (11, 12, 13), of which two feed streams (12, 13) feed different layers of the headbox (3). and in which a third of the feed streams (11) feed both layers and that the former headbox layers are provided in their different feed zones with their own actuator sets (10a, 10b) for controlling the combined portions of said feed streams (11,12; 11,13) (Fig. 4). 35 33 100345 6. For the purposes of claim 1, 2 or 3, both of which have been shown in the invention (11,12,13,14) and in the case of colors (11,12,13,14) in the form of a matrix (11,12) the utilization step (3a) and the maturation means (13, 14) according to the utilization step (3b), which was a matrix and the name of the utilization means (3a, 3b) is provided by a respectable functional arrangement system (10a, 10b) these matrix combinations and combinations of devices (5a, 5b) are provided in combination with these final devices (3a, 3b) for a combination of devices and combinations (5), with a special profile or a profile of 10 devices according to 40 devices. Method according to one of Claims 1, 2 or 3, characterized in that the method uses four different feed streams (11, 12, 13, 14), of which two feed streams (11, 12) feed one headbox (3a) and the other two the feed stream 5 (13, 13) feeds a second headbox (3b), that the different feed zones of both headboxes (3a, 3b) are provided with their actuator systems (10a, 10b) for controlling the combined portions of said feed streams and that said headboxes (3a, 3b) ), the incoming subwebs (5a, 5b) are combined into a composite web (5), the transverse property profile or profiles of which are measured by a measuring system (40.140). 7. In the case of a regulator or an airplane profile and a masking device for a paper machine (5) with a frame and a paper machine, the air handling unit and the regulator system (150) with a paper machine mask (3) or a paperboard (3) , 3b) regulatoras and ett Mätsystem (40,140) med vilket nämnda egenskapsprofil eller -profiler mäts och medel med vilka den ätsignalen som erhälls frän mätsystemet mätäs account nämnda reglersystem (150) samt medel med vilka ätminstone tä matarströmning (3) or, in the case of utensils (3a, 3b), of 20 different materials for papers in the form of a water suspension and in the form of a single matrix of the maturation zone and in the field of cells (3) or (3) or (3) or ), varvid account for the purpose and for the purpose of combining the combined stocks of these mattresses (11,12; 11,12,13; 11,12,13,14), k-n -25 netecknad av anordningen dessutom omfattar feljande medel som en combinations: medel (21,22,23,24,25,26) med vilka prov tas kontinuerligt eller under interval at av bäda eller av de matarströmningar (11,12; 11,12,13; 30 11,12,13,14) in the case of a separate account (3) or a separate account (3a, 3b), medel (31,32,33,34,35,36,130,131) med vilka egenskaper hos nämnda matarströmningar (11,12; 11 , 12,13; 11,12,13,14) the concentration of the components in the above-mentioned and / or clear-cut hosts, 35 39 100345 reglermedel (10; 10a, 10b; 110,150; 110, lll, 150) with light combinations of other mattresses (11,12; 11,12,13; 11,12,13,14) and a shielding device (3) or a shielding device (3a, 3b) with a shielding device according to the regulation, 5 (130) with the same results as one of the following methods (11,12; 11,12,13; 11,12,13,14) or with the same factor as in these rules (10; 10a, 10b; 110,150; 110,111,150) , in which case the combination or moderation of the papers (5) may be performed and modulated by 10 such combinations and combinations of the regulators of the papers (5). An apparatus for adjusting the cross-machine direction profile of one or more machine-made paper webs (5), the apparatus comprising a control system (150) for adjusting the paper machine headbox (3) or headboxes (3a, 3b) and a measuring system (40.140) for measuring said feature profile or means for supplying the measurement signal from the measuring system to said control system (150) and means for supplying at least two feed streams (11, 12) to the headbox (3) or headboxes (3a, 3b) containing paper raw materials in the form of an aqueous suspension and means for distributing the feed streams in the transverse portions of the headbox (3) or headboxes (3a, 3b) to feed zones to each of said feed streams (11,12; 11,12,13; 11, 12,13,14) combined flows, characterized in that the device k further comprising, in combination, the following means: means (21,22,23,24,25,26) for continuously or intermittently taking 30 samples from each of two or more feed streams (11) fed to the headbox (3) or headboxes (3a, 3b); 12; 11,12,13; 11,12,13,14), means (31,32,33,34,35,36,130,131) for measuring said feed flows (11,12; 11,12,13; 11,12,13,14) properties such as the concentrations of the components of said samples and / or the brightness and / or color of said samples, and adjusting means (10; 10a, 10b; 110,150; 110,111,150) for adjusting said feed flows (11,12; 11,12); , 13; 11,12,13,14) in each of a plurality of feed zones of the headbox (3) or headboxes (3a, 3b) in its / their transverse direction, means (130) for feeding said feed streams (11, 12; 10 11, 12,13; 11,12,13,14) or factors calculated therefrom for said control means (10; 10a, 10b; 110,150; 110,111,150) which respond to one or more of the measured properties of the paper web (5) and modulate the aforementioned combination portions of the paper web (5). 5) to adjust the above properties. 15 8. An arrangement according to claim 7, which comprises an embodiment (11,12) and an arrangement according to the end of claim 15 (3) with a valve (10) and a valve (10) according to the invention. the annat instrument (110) is a communication device with a data carrier or instrument. Device according to claim 7, characterized in that said supply flows (11, 12) are arranged to supply each feed zone of the headbox (3) using a valve arrangement (10) and in that said valve arrangement (10) is controlled by a computer or other instrument (110). ), which can communicate with other computers or instruments. 9. An order according to claims 7 or 8, which turns 20 from the provisioning (21, 22) for the protection of the balance between the concentration (31,32) for the concentration or the transfer of the instrument or the data of the instrument. (130), vilken förmedlar nämnda concentrationer or frän dessa räknade factorer account en annan datamaskin eller et anna instrument. 25 Device according to Claim 7 or 8, characterized in that the sampling arrangement (21, 22) for each supply flow (11, 12) is connected to concentration or the like measuring devices (31, 32) connected to a computer or other instrument (130), which transmits said concentrations or factors calculated therefrom to other computers or instruments. 10. The provisions of claims 7-9, which are based on the provisions of the provisions (21, 26), which apply to the application of the concentration (31,36) for the purpose of concentration, are not limited to the data account or the data set. an instrument 30 (130) for communicating with the data cell or instrument (Fig. 2a). Device according to one of Claims 7 to 9, characterized in that the supply flow has two sampling arrangements (21, 26), each of which has one concentration measuring device (31, 36) connected to a computer or other instrument (130) which communicates with other with computers or instruments (ku-35 vio 2a). 35 100345 11. In addition to the provisions of patent claims 7-10, the wording of which relates to the composition of the regulation (35,36) for the concentration of the concentration account (36), 35 of the regulation (35,36) and the account and a data mask or an instrument that communicates with a data mask or instrument (Fig. 2b). 40 100345 Device according to one of Claims 7 to 10, characterized in that two or more concentration measuring devices (35, 36) are connected to one sampling arrangement (36), which measuring devices (35, 36) are connected to a computer or other instrument 5 which communicates with other with computers or instruments (Figure 2b). 12. An arrangement according to claims 7-11, a reference to an arrangement and an arrangement (15) with a plurality of devices (3) with a modulation of the p4 of the banana (5) of the arrangement and arrangement (15) the regulator with the data or the instrument, and the communicator with the data or the instrument (Fig. 5). Device according to any one of claims 7 to 11, characterized in that the device uses an arrangement (15) for modulating the lip openings of the 10 headboxes (3) at several points in the transverse direction of the web (5) and said arrangement (15) by computer or other instrument ( 115), which communicates with other computers or instruments (Figure 5). 13. An arrangement according to claims 7-12, which is intended to comprise a matrix (3) of a matrix (10) and a mass suspension (11) matar ett utspäd-ningsmedium. Device according to any one of claims 7 to 12, characterized in that said headbox (3) is a dilution headbox with two feed streams (11, 12), of which one feed stream (11) feeds the pulp suspension and the other feed stream (12) feeds the dilution medium. 20 14. An arrangement according to claims 7-12, turning -15 for the purpose of the application of the matrix (11,12,13), with a solid matrix to a matrix (3) (Fig. 3). Device according to one of Claims 7 to 12, characterized in that the device comprises three feed streams (11, 12, 13) which are fed into each feed zone of the headbox (3) (Fig. 3). 15. An application is made to claims 7-12, the reverse of which is provided by the provisions of claim 20 (11,12,13,14), for which the account is provided (3a, 3b). the modular matrix, the color of which is (5a, 5b) is produced by the utensil (3a, 3b) for the same account (5) for the purpose of the control (40) with the profile of the host (Fig. 6). 25 Device according to one of Claims 7 to 12, characterized in that the device comprises four feed streams (11, 12, 13, 14) fed to two dilution headboxes (3a, 3b), which are provided with independent modulating feed zones and whose headboxes ( The webs (5a, 5b) produced by 3a, 3b) are combined into one web (5) before its profile measuring device (40) (Fig. 6). Device according to one of Claims 7 to 11, characterized in that the device uses two conventional headboxes (3a, 3b) which are fed with different feed flows (11, 12) and both headboxes are provided with a modulation arrangement for their lip opening, which is controlled by a computer or other instrument. (115,116), which communicates with other computers or instruments (Fig. 7). 36 100345 I. For the purpose of regulating or adjusting the capsule profile and the machine tool (5) in the form of a paper machine (5), the box is controlled by the control system (150) and the machine is equipped with a paper machine (3) 3a, 3b) adjusting and flashing the respective signal profile or profile according to the control system (40,140), varying the signal signal according to the control signal of said control system (150) and displaying the output signal (3), or 3b) mätäs dtminstone tvd matarströmningar (11,12), somehow a source of material for paper containing a small amount of water in the form of a water suspension and a vigorous maternity suspension of the mattresses (3) or of the endorses (3a, 3b) och et av dessa mätäs kombinerade strömningar av nämnda matarströmningar 15 (11,12; 11,12,13; 11,12,13,14), kännetecknat av att egenskapen hos ett eller flera raämnen i nämnda matarströmningar (11,12; II, 12.13; 11,12,13,14) with a concentration of and / or consistency with / of a clarity and / or with a melting signal and a signal signal of the same value as the current system (150), Fig. 20 of the signal signal is shown at the same time. egenskapsprofil eller -profiler oct pd basen av mätningen av nämnda egenskapaps sasom concentrate och / eller consistent och / eller clarinet och / eller fhor och / eller motsvarande oct pd basen av börvärdena eller motsvarande, med vilka reglers 25 functional arrangements (10a, 10b), each of which is provided (3) or a final arrangement (3a, 3b) and which may be combined with the combination (11,12) with a matrix account (11, 12) att erhdlla en eftersträvad egenskapsprofil eller Profiler hos banan (5). 30 * 2. In order to obtain a patent according to claim 1, the CD-ROM profile or profile may be used in the form of a paper and / or up to a paper bank (5) in which the following groups are used: group, key, key, glove, key , opasitet, fiberorientering, 35 hallfasthet, torrämne, fuktighetsprocent och / eller olika kompenter i asvikik och / eller olika components component sasom olika parametar i askvikten och / eller fdsen sdsom: r, m-.i iju ia 37 100345 i) reflection spectra; ii) spectra for genomics; (iil) the number of consignments, the intensity of which; iv) Hunter L, a, b; 5 v) CIE L *. a *, b *; vi) CIE tristimulus; and / or if the attribute contains the following: i) vithet; ii) ljushet; 10 iii) fargkulör; (iv) renhet; v) dominat vdglängd; vi) fluorescence index; vii) metamerism ^ index. 15 16. An arrangement according to claims 7-11, according to the invention, which comprises a standard device (3a, 3b) and an arrangement with a matrix (11,12) and a device according to which the modulation arrangement is adapted. 30 flip-flops, which control a data device or an instrument (115,116), and a communication device with a data device or an instrument (Fig. 7).