METHOD OF MIXING RAW MATERIAL PAPER AND APPARATUS OF MIXING RAW MATERIAL PAPER

"METHOD OF MIXING RAW MATERIAL PAPER AND APPARATUS OF MIXING RAW MATERIAL PAPER"

The present invention is directed to a method and apparatus of mix and, more particularly, to a method and apparatus for mixing liquids and paper pulp, especially to enhance output consistency and removal of gas from the feedstock mixture for feeding paper pulp paper at a papermaking machine -.

In the manufacturing process raw material paper, ingredients, such as pulp and water, are fed, in controlled speed, into a mixing vessel raw material (box (chest) machine). After initial mixing effected at box machine feedstock, the mixture of pulp and water is fed to a second tank, (primary box machine). The higher consistency pulp paper at the exit of the case of primary machine (in weight percent) tends to produce a more efficient process of papermaking (requiring less raw material paper for a given minimum thickness of paper).

The consistency pulp paper (in weight percent) in the matter of feedstock paper has been traditionally accomplished using large mixing tanks, and adding loop control water injection, and bypass loop water in the system of paper pulp and water mixture. Furthermore, many systems have paper pulp mixture with a single helix in the bottom of the tank, near the outlet, thus, providing only a single mixing zone. This configuration tends to provide a channeling or insufficient mixing.

Some systems mixing pulp paper use multiple helices. However, the inventors of the present invention had theorized that, when the helixes are disposed spaced apart or little operated at high speed, the helixes create a single mixing zone, resulting a dynamical tank short circuit, where the material newly admitted by top ' box of the raw material is quickly brought paper downwardly by the impellers toward the outlet without mixing. As in channeling, the problem of short circuit has the disadvantage of producing a mixing zone very limited (the part of the paper pulp, which is urged toward the side walls of the tank not mixes, making arise zones " stagnation) and a mismatch of the weight percentage of the paper pulp at the exit (in ratio of pulp paper newly admitted be forced to outlet without having been sufficiently mixed). This system provides very limited improvement using a retrofit power control loop, because of a time lag between the turbulence very short inlet and the output signal.

The inventors herein had theorized that, to prevent short circuit behavior, some mixing systems employ various pulp paper impellers spaced apart or operated at low rotation to create mixing zones separated, that originate a dynamical forming caverns and stagnation zones. The caverns are separate mixing zones that are mixing a relatively small portion of pulp into feedstock, giving inadequate mixing pulp and water, providing a poor consistency pulp paper weight percent at the exit.

The paper pulp often contains an amount greater than 10% (by volume) of air trapped in the fibers, preferably errç form of bubbles. An excessive amount of air entrapped in the paper pulp is undesirable to the papermaking process.

This disclosure history some observations with respect to the summarizes this prior art. But, the specification theorized by the inventors of this non-admits that such observations•commences the prior art.

Furthermore, the present invention is not limited to possess all these characteristics, constituting an advance over the prior art, nor limited to possess all solutions to the problems of the prior art.

A method and apparatus for mixing liquid and paper pulp include one or more of the following attributes diminished: fluctuation of consistency raw material role in outlet box raw material not refined;

channeling; short ' circuit; caverns; and stagnation zones; and entrapment of excess gas.

0 method of mixing raw material with better consistency paper output includes: the) liquid and feeding paper pulp to a tank to form a mixture;

b) providing at least one backflow impeller submerged in the mixture, which is to be able to induce simultaneously a first flow and a second directed upward flow directed downwardly; and c) rotating the impeller of backflow, whereby the flow directed downwardly from the impeller recircule with the flow directed upward from the impeller to form a mixing zone; D.) a parameter of the mixture sensorear, that is discharged from the tank; and) control feed rate and liquid feed rate in step of feeding pulp (a) based on step (a-d) sensorear.

A raw material mix consistency paper having enhanced output includes a tank to contain liquid and paper pulp, at least one impeller backflow, and a retrofit feed forward control the output consistency. The impeller is adapted to submerge backflow beneath the surface of liquid mixture and pulp, and to simultaneously induce a flow directed upward and a flow directed downwardly. The back-feed system to control the consistency of output includes a sensor capable of determining a parameter of the mixture discharged from the tank and controller capable of adjusting the feed rate of the liquid feed rate and the paper pulp entering the tank.

The method and apparatus of mixing paper pulp with improved output consistency can also include at least one additional impeller spaced impeller backflow, such that each impeller produces a mixing zone substantially separate. 0 sensoreado parameter in the method and apparatus of mixing paper pulp with improved output consistency, may also be - - weight percentage of paper pulp or substitute weight percentage of paper pulp. Replacements for parameter weight percent of paper pulp are understood by those enabled technology paper pulp and its instrumentation.

The raw material produced by the method and apparatus of mixing raw material paper with improved consistency also may contain up to about 7% by weight of paper pulp.

At least one of the blades bear the backflow method and apparatus of mixing pulp paper structure having improved consistency, also may have a diameter which corresponds from about 70% to about 90% of the diameter of the tank. A helices of backflow can also be adapted to be adjacent the surface of the mixture. Each of the helices of backflow may have a tip speed of exceeding 3 m/s. The tank may also include at least one inlet port water injection. The tank preferably is a box of primary machine or raw material not refined in an upright orientation, having top and bottom ends, wherein the paper pulp enters the tank by top end and exits the tank near the bottom end. At least one of the blades preferably has the backflow rotation axis substantially perpendicular to the vertical orientation of the tank.

These and other advantages and components are particularly pointed in the appended claims and incorporated thereto. However, to arrive at a better understanding of the invention and appreciate its advantages and objectives, should refer to the drawings and accompanying text, where the preferred configurations of the invention are illustrated and described.

backflow of Figure 3a;

Figure 3c is a diagrammatic view of flow pattern created by impeller backflow of Figure 3a;

Figure 4 is a diagrammatic view of system raw material mix paper, illustrating the function of degassing of the present invention; and

Figure 5 is a qualitative comparison of the output response to an imbalance weight percent of paper pulp inlet system raw material mix paper, such as the system of Figures 2 and 2b, compared with the systems Dis mix raw material paper with channeling behavior and circuitação short.

Detailed description of the illustrative configurations referring to Figure 1, the raw material mix system 100 paper prior art includes tank 110, 120 impeller, inlet and outlet 130 and 140 paper pulp, adjustment of control water inlet 150. The tank 110 includes sidewall 112 tank, tank bottom 114, the mixture of paper pulp 160, as in Figure 1, including upper surface 161, 162 active mixing zone, and frequently includes a stagnation zone 163. After mixing, the mixture of paper pulp is fed through the outlet 160 pulp paper 140 to the paper machine 170, for later processing.

Typically, due to the particular rheology of ^. pulp-of. paper with up to 7% by weight umaconsistência pulp, of the mixing zone 162 active part of the tank 110, as shown in Figure 1. the rest of the mixture pulp paper 160 is a zone of stagnation 163. The stagnation zone 163 need not be completely stagnant, but relatively stagnant, relative to the higher speed active 162 in the mixing zone.

Referring to Figure 2a, a mixing system raw material paper 10 includes a backflow impeller 20, mechanical driver 26, inlet and outlet 36 and 38 paper pulp, control system water inlet 50, and mixing pulp paper 60. A paper machine 70 is placed downstream of the mixing system 10.0 impeller assembly 20 includes a backflow of 20, a backflow 24a upper impeller, an impeller of backflow average 24b, and, optionally, a lower impeller 24c backflow. The tank 30 includes a sidewall of tank 32 and tank bottom 34. The control system includes a sensor 57 lower water outlet water 51, controller 52 water inlet, water valve 53 upper, lower water valve 54, drain valve 55 pulp, water inlets 56 and 57 upper and lower, sinking pulp and inlet 58.

The mixture pulp paper 60 defines a top surface 61 and includes mixing zones active Zl, Ζ2, z3.

The mixture pulp paper 60 enters the tank 30 by top via paper pulp 36.

In the tank 30, the mixture of paper pulp is diluted with water 60 heavy water inlets 56, 57, 58.

In an exemplary configuration, a mixing system raw material paper 10 allows mixing a mixture of paper pulp 60, up to about 7 c/o by weight pulp paper, with the remainder of the mixture comprising water.

Backflow blades 24a, 24b, 24c are used for mixing the paper pulp 60 in tank 30. 0 system 10 includes two or three blades 24 backflow, as shown in Figures 2Α and 2b, respectively it. it furthermore, the present invention also contemplates other numbers of impellers, wherein also an impeller only 24 can be used. The helixes of backflow 24 preferably are submerged, ie entirely under the top surface 61 in the mixture 60. The mixture pulp paper 60 newly admitted moves slowly over the helices of backflow 24a, 24b, 24c and corresponding mixing zones active Zl, Ζ2, z3, and being pumped from tank 30 after dilution by paper pulp outlet 38.

The use of multiple mixing impellers 24, in configurations with multiple impellers 24, helps to create separate zones Zl, Ζ2, z3 portions tank, involving the respective helices, avoiding problems of channeling. In some examples of channeling, there is only a single mixing zone active in the bottom of the tank, thereby paper pulp newly admitted is forced downwardly to the mixing zone by a "channel" active through the "stagnation zone", which occupies the upper portion of the tank.

To maintain the mixing zones active Zl, Ζ2, z3 separated, the helices 24 preferably are spaced apart a sufficient distance and operated at low rotation, so that the mixture is completed in each mixing zone (ie the mixture of paper pulp that enters a mixing zone reaches approximately the same weight percent pulp mixture paper pulp preexisting particularly in that zone), such that the zones of intermixing combine to form a single mixing zone. In a preferred configuration, to create mixing zones separated with the helixes, the helixes are spaced apart from each other a distance that corresponds to a at least 33% of the diameter of the impellers. The optimal spacing between the helixes depends on the dimensions of the tank 30, rotation of the impeller, mixing parameters, et cetera, as should be appreciated by those in the art enabled pertinent, Innovia especificaçãof Party - light

To prevent the mixing zones active barrel member away too, the helices 24 preferably are spaced relatively short space and operated speeds sufficiently high, so that the newly admitted paper pulp is mixed for a certain period of time in each of the mixing zones active Zl, Ζ2, z3, however, without being a substantial length of time in a stagnation zone between mixing zones.

0 use of multiple blades 24 backflow, as shown in Figures, which impellers being disposed a predetermined distance from one another, helps provide, in many circumstances, a balance between two undesirable conditions: (1) short circuit behavior, where the mixing zones are active as close as that combine to form a single mixing zone, hence, causing paper pulp newly admitted readily reaches the bottom of the tank and escaping from the outlet before mixing completely;

(2) including stagnation zones caverns, where active mixing zones are so separated (creating "caverns"), wherein a substantial portion of the tank not effectively mixes (stagnation zones). Helices 24 preferably are configured, such that the interior pumps fluid in the opposite direction to the other part. 0 spacing between the helices 24 depends on dimensions of the tank, rotation of the impeller, weight percentage of paper pulp in the mixture, as should be well understood etc by those in the art pertinent enabled.

The use of multiple blades 24 backflow, as shown in Figures, allows, in many circumstances, each of the mixing zones active Zl, Ζ2, z3 overlaps slightly to its limits. For example, the lower limit of the mixing zone Zl slightly overlaps the upper limit of the mixing zone z2. The helixes of backflow 24, as shown in Figures 3a, 3b, 3c preferably and simultaneously move the mixture pulp paper 60 in multiple directions, when the helixes are rotated on the axis of rotation. When the impeller of backflow 24 rotates clockwise, the mixture pulp paper 60 is directed downward inside impeller (near the axis of rotation) while, at the same time, the other portion of the mixture of paper pulp 60 therein mixing zone is urged upwardly outside impeller (the part farthest from the axis of rotation). The combination of these two simultaneous flows caused by rotating helices of backflow encircled the mixture of paper pulp in the mixing zone active. After passing a time in the Zl zone, the lower portion of the paper pulp in zone 60 Zl is continuously forced downwardly by flowing zone z2 pulp paper passing through the tank, where recirculates. After the passing of a time in zone z3, the portion of the mixture 60 nearest the outlet 38 leaves the tank 30, for further processing in paper machine 70.

The use of multiple blades backflow 24 provides multiple areas of zonal mixture to maximize time mixture paper pulp 60 passes being actively mixed and minimize the potential short circuit flow of new material. Furthermore, the use of multiple blades 24 backflow allows thorough mixing speeds lower than conventionally, when using multiple impellers, providing cost savings, minimizing fiber damage, and increase in mean time between occurrences of failing components of the mixing system 10. Impeller systems require a conventional power and significantly higher, however, produce less flow systems of impellers of backflow. The helixes of backflow, warrant for simultaneous pumping directions up and down, the feedstock mix more regularly along the entire•tank 30, with few stagnation zones. - '

The use of multiple blades 24 backflow increases ability of the raw material mixing system 10 provide pumping rate higher (production faster entirely mixed raw material) that conventional impellers, wherein the system can operate efficiently in ratios of diameter of tank:

higher helix diameter, conventional propeller systems. The helixes of backflow can have any suitable diameter relative to the diameter of the tank 30 dependendoüos desired process parameters. In a preferred configuration, the helixes of backflow 24a, 24b, 24c have a diameter ranging from 70% to 90% of the diameter of the tank 30. The raw material of paper, with a consistency of up to 7% typically has a very high yield, difficult operation of mixing. 0 use of multiple blades backflow between 70% and 90% diameter diameter tank 30 helps to circulate portions of the pulp mixture 60 that are near the sidewall of the tank 32, hence minimizing the formation of stagnation zones in the sidewalls of the tank. - '

Control system water inlet 50, which preferably is conventional, uses the signals from a light sensor water outlet 51 to adjust the water flux volume and rate of entry into the tank 30. The control system 50 maintains consistency fluctuations weight percent of paper pulp in target values, adjusting the volume of flow and the rate of water entering the tank 30. Exit paper pulp 38, the water outlet sensor 51 measures the flow velocity of the mixture 60 and consistency pulp (weight percentage of paper pulp). Parameters, sensoreados sensor outlet 51 of the water flow of the mixture discharged from the tank 60 30, may include, without limitation, flow velocity, weight percentage of paper pulp, and consistency (weight percentage gives paper pulp). The parâmetrosenviados. at the sensor - '' give ' outlet 51 water flow discharged from the mixing tank 60 30 may include, without limitation, flow velocity, weight percentage of paper pulp, moisture content, viscosity, or any other parameter substitute for parameters listed. Other parameters may be sensoreados sensor output 5l, whose control helps improve the consistency of the pulp mixture discharged from the tank 30 60.

0 control water inlet is made and send the sensor signals to the controller 51 water inlet water intake 52 that controls flow rate and volume of water passing through the water valve 53 upper, lower water valve 54, and drain valve 55 pulp. These three valves 53, 54, 55 control rate and volume of flow of water entering the tank 30 through the water inlet 56 upper, lower water inlet 57, and sinking pulp inlet 58, respectively.

The use of multiple blades contrafiuxo 24 increases the time constant of the mixing system raw material paper 50 (ie the mixture 60 newly admitted entering inlet pulp 36 is mixed for a longer period of time before Exit paper pulp 38). The time constant longer decreases floating pulp consistency (weight percentage of paper pulp) at the exit of paper pulp 38, resulting from the introduction of a new paper pulp with weight percentage of pulp mixture different from the pulp paper 60 preexisting in the tank 30.

The mechanical driver 26 may be a component or mechanical pertinent known in the art, that can be used to to rotate shaft 22 and blades 40 with the desired rotation, such as, for example, gear boxes, straps, currents, etc driver 26 is coupled to the upper end of the axis in a preferred configuration 22 ., we use a driver _ deengrenagens specifies icaríiénte designed to withstand a torque high mixing applications found in pulp paper. 0 driver gears includes a housing reinforced reinforced to resist strain degree required.

Another configuration of the present invention is shown in Figure 2b, where the reference numerals for structures or components are reused, but added with ^immature to indicate its use in the system 10 'of the second configuration, where one or more helices of backflow 24' may be adapted to a mixing system 10 ', including an impeller lower conventional preexisting, typically near to the paper pulp outlet 38'. This orientation system also provides for creating multiple mixing zones Zl ', z2', z3 'active in the tank 30', giving the advantage of providing greater mixed consistency pulp paper 60 'in outlet 38'. In a preferred configuration, the impeller assembly of backflow 20 'includes two strands of backflow 24', 24b ', forming active zones Zl, Ζ2, z3.

The zone z3 'is created by an impeller lower conventional preexisting 25'. 0 mixing system 10 'operates similar to system 10 of Figure 2a mixing, except the velocity vectors and forms in zone z3' be different, due to different position, form, and lower impeller rotation.

In Figures 3Α, 3Β, 3c, and 4, the reference numerals for some structures or system components mixture pulp paper 10 and mixing system raw material 10' are shown without ^T- . However, those in the art should appreciate that enabled the disclosures with respect to Figures 3Α, 3Β, 3c and 4 refer to structures and components of both systems mixing system pulp paper 10 and mixing system raw material paper 10'.

In Figure 3a, the impeller backflow (24a, 24b, 24c in Figure 2a, and 24 ', 24b', 24c ' in Figure 2b) includes a plurality of blade assemblies of backflow it 4 it 0-and cube 48. - Each blade assembly 40 includes an inner sheet 42, flow splitter 44, and outer sheet 46. The impeller 24 backflow can contain any number of impeller blade assemblies 40, but preferably are two sets, as shown in Figure 3. The blade assemblies 40 can be made from any available material, including stainless steel and other materials known in the pertinent art. The use of the term "blade assembly" is referred to the inner blade 42, flow splitter 44, and outer sheet 46 includes either one piece and also several pieces. A blade assembly 40 may be a fused piece integral with, or contain multiple individual components, welded or affixed in some manner.

Preferably, the inner sheet 42 has a length corresponding to about 70% of the radius of the impeller 24 backflow. The distai end 42 of the inner sheet is connected to vertical flow splitter 44. The proximal end of the outer sheet 46 is connected to the vertical flow splitter 44 on the opposite side of the inner sheet 42.

The cube 48 alloy each helix 24 backflow of axis 22 (shown in Figure 2 as 22 and Figure 2b as 22').

In an exemplary configuration, the torque transmitted by the driver 26 mechanical axis 22 is transmitted from the shaft to the cube 48. The cube 48 may be welded to axis 22, or include a keyway or screw it lock to prevent the cube rotate with respect to the axis 22. in another configuration, the cube 48 incorporates ears welded or melted to connect blade assemblies 40. In other configurations, the blade assemblies 40 are welded or bolted to the cube 48. The lower end of the axis 22 extends under the blade assemblies 4 0 in a larger depth in the mixture 60 blades.

Referring to Figure 3b, the inner and outer blades 42 and 46 are _ spaced angle (pitch) perpendicular to the axis of rotation of the impeller 24 of backflow. The _ângu_los_ al and a2•~~that allow the impeller of backflow move simultaneously the mixture pulp paper 60 in multiple directions. In one configuration, the inner sheet 42 is spaced an angle AL 45° a plane perpendicular to the axis of rotation of the impeller 24, and the outer sheet 4 6 spaced a2 32° angle of a plane perpendicular to the axis of rotation of the impeller 24 in rotational direction opposite the inner sheet 42. In this configuration, shown diagrammatically in Figure 3a, is used a helix Mixing solutions for backflow of Philadelphia. The inner and outer blades 42 and 46 may be spaced apart by angles al and a2 approximately 15° at approximately 75°.

The present invention contemplates the use of any backflow impeller 24, wherein any number of blade assemblies 40, and, furthermore, blade assemblies of any length and configuration. The length of the impeller blade assemblies 40, inner blade assembly 42 and outer sheet 4 6, angles and pitch al and a2, as in Figures 3Α, 3b, can be increased or decreased, depending on the dimensions of the tank 30, the weight percentage of paper pulp desired mixture 60, and other processes and dimensional parameters.

Figure 3c illustrates the condition of the impeller backflow 24 move simultaneously the mixture pulp paper 60 in multiple directions, of backflow when the impeller rotates about its axis of rotation 25. As can be seen in Figure 2b, when the impeller rotates in a clockwise direction 24 backflow (viewed from above), the portion of the paper pulp mixture 60 that moves towards the inside of the divider vertical flow 44 is generally brought downward toward portions of dL-inner sheet 42. At the same time, portions of the paper pulp mixture 60 near the exterior of the vertical flow splitter 44 are generally taken upward d2 portions of outer sheet 46. Rotation of the impeller of backflow 24 creates a mixing zone __ Z-a.tiva (shown as -^-Zl, " ^~Z3and z27 in 'Figure 2 and Zl', z2 ', z3' in Figure 2b), where portions of paper pulp mixture 60 are circled downwardly by the inner blade portions 42 and upwardly by the outer blade portions 46, and again downwardly by the inner blade portions 42. This movement provides a mixture effective circulation in the mixing zone Z-, backflow of 24 when the impeller rotates about its axis of rotation.

The paper pulp entering box paper raw material also tends to degas, as best seen in Figure 4. referring to Figure 4, in a preferred configuration, the mixing system 10 includes a raw material upper impeller backflow 24a, that operates near surface 61 of the pulp mixture pulp paper 60. To enhance degassing of the mixture 60 (as will be defined below) the distance between the impeller 24 and the upper surface 61 of pulp, preferably should not be greater than 20% of the diameter of the impeller 24. However, in other configurations, the limit position of the helix is optional, because the system may be used to mix paper without maximizing the functionality desgaseificação. The circulation of the mixture in the mixing zone 60 active Zl (involving the impeller 24 and may extend to the surface of the pulp 61) makes the mixture 60 newly admitted be "tamboreada" (rotated) on upper surface 61. This process helps to release the gas bubbles it gives the name "desgaseificação". In a preferred configuration, to maximize degassing mixing freshly admitted into the tank 60 30 through the inlet 36, the tip speed of the impeller upper outer backflow 24 should not be greater than 60 feet neuroleptic minute.

In a mixing system raw material paper using an impeller axially conventional, may arise opposite effect - gas entrapment - where an amount of additional gas is entrapped in the mixture 60. In a conventional system, the impeller axially generates a ^~vórtéx incorporating gas surface 61 to the mixture 60 after the added material entrance 36.

Figure 5 brings a qualitative comparison of the output response to tipping weight percentage of paper pulp the inlet of a mixing system raw material paper compared with a mixing system raw material paper with short circuit behavior and piping. Figure 5 carries a comparison graph of behavior outlet 80, showing the weight percentage of pulp (vertical axis) 81 vs. time (horizontal axis) 82. The graph 80 compares the output response with respect to tipping three systems of the step function input 83:

1sistema channeling;

short circuit 2sistema 85; and

3sistema propeller backflow 86.

The channeling system 84 is a system where, for example, there is a single impeller located at the bottom of the tank near the outlet, and providing a single mixing zone, which results in a dynamic behavior of channeling tank, where the paper pulp newly admitted upper part of the case is brought down toward the outlet, passing paper pulp preexisting, forming a narrow channel. In the graph 80, the channeling system 84 transmits quickly (low time constant) a raised portion of the magnitude of the imbalance of the step function input to slawin 83. This behavior means that, when a new pulp pulp paper is admitted into the channeling system 84 having a weight percent pulp paper pulp mixture different from the pre-existing in the tank, this imbalance rapidly affects the percentage of pulp at the exit. This low degree of damping for the imbalance introduced is not optimal for the outlet of a mixing system raw material paper.

The system short circuit - ^ - 85 is a tndé system, for example, multiple blades are spaced backflow near or are operated at high rotation, creating a single large mixing zone. This results in a dynamic behavior of short circuit tank, where a material newly admitted by the top of the box is quickly brought machine downwardly by the impellers toward the outlet, without too much mixture. In the graph 80, the short circuit system 85 transmits quickly (low time constant) a raised portion of the magnitude of the imbalance of the step function input 83 to the outlet. This system provides better mixing system channeling 84, because the percentage of paper pulp outlet experience less imbalance due to the step function. However, the time constant is less than the channeling system 84, meaning that the imbalance introduced gets into outlet more quickly, and make it more difficult to control system retrofit feed water enhance consistency of the paper pulp outlet.

The propeller system 86 is a backflow system, as described in Figures 2Α 2b and, where at least one impeller backflow is used to create multiple active mixing zones. In the graph 80, the propeller system backflow transmits slowly (time constant high) a reduced portion of the magnitude of imbalance of the step function input 83 to the outlet. This system gives a substantially better mixture either a channeling system 84 or 85 short circuit system, because the percentage of paper pulp in relatively small outlet experience an imbalance due to the step function. Furthermore, the time constant is greater than both herein - channeling system 84 or 85 short circuit system, therefore, being easier for a control system retrofit input feeding water improve the consistency pulp paper, hence, the graph 80 shows comò impeller system de_ backflow 86 provides a performance " mixing pulp paper upper compared with conventional mixture of paper pulp.

The disclosure has provided explanatory character and was not constructed with purpose limiting the present invention. Although the present invention has been described with reference to preferred configurations, those in the art will appreciate that enabled the words and terms used in this intended to only explain the description and illustration, rather than limit the present invention. Furthermore, although the present invention has been described with reference to the structures, methods, and particular configurations described, also encompasses all structures, methods, and uses within the scope of the appended claims. Furthermore, several advantages have been described the structure and methods incurred by, but not limited to such structures and methods any or all encompassing advantages. Those enabled in the art, in light of the teachings of the present invention, can come to introduce numerous modifications to the invention, wherein such changes from exiting the scope and spirit of the present invention, that will be defined only by the appended claims.