BRPI1104825A2 - PAPER SHEET RESIDENTIAL MOISTURE REMOVAL EQUIPMENT BY APPLICATION OF VACUUM, USING A PAPER PRODUCTION LINE - Google Patents

Abstract

EQUIPMENT FOR REMOVAL OF PAPER SHEET RESIDUAL UNIT BY APPLICATION OF VACUUM USING A PAPER PRODUCTION LINE. Said equipment being indicated by reference (100) and having a main structure (1) configured analogously to a metal box (2), the equipment being characterized by the fact that its main structure (1) is internally divided by an intermediate plate (3) which separates a front region (4) corresponding to the vacuum zones of a rear region (5); a wear cap (6) is provided having proper lubrication means with respect to the felt mat; the main housing (1) has separators (28) that allow the flow to be stopped to be sucked into the equipment of the portion of water that is sucked together with the air flow; The wear cap (6) can be made of high density polyethylene or even ceramic.

Description

"PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT THROUGH VACUUM APPLICATION USING A PAPER PRODUCTION LINE".

The present report

This patent relates to a patent for a device developed for use in the removal of residual moisture present in the sheet of paper in the production phase. This equipment is especially intended to be assembled and to equip the press section of a production line. of paper.

As is well known, paper is produced by processing the pulp obtained from wood, and in more recent times it is also the result of recycled fiber which in both cases is mixed with large amounts of water during its processing.

Significant part of

Paper processing in the production phase occurs on a type of machine that has an inbox, where the pulp (fibrous suspension) loaded with high water content (only 0.2 to 1% solid or fiber) is loaded. from said inlet box (which forms the forming section) this mass is arranged neatly on a closed loop belt running under the outlet mouth of the inbox, which is called a screen trainer.

The outlet nozzle of the inlet box has a shape such that it produces the distribution of cellulose in a thin layer that is accommodated on the forming screen, which equipment with respect to its surface has a specific design in order to facilitate the removal of a appreciable portion of water through a set of dewatering elements that make up a structure similar to a collecting chute. Immediately after the region in which the dewatering elements are mounted, a set of vacuum boxes is positioned which are used in the permeable nature of the forming fabric structure to further remove water present in the pulp mass. After passing through the dewaterers and the set of vacuum boxes the paper sheet already formed has a consistency between 8 and 12% of solid.

Conventionally the paper machines also have a second felt mat, simply called felt, which is already in the pressing section.

The proximity ratio of the felt to the forming web is adjusted such that the sheet already formed thereon can be transferred to the surface of the felt which makes up the pressing section.

The felt, like the forming fabric, is mounted on rollers, forming a closed loop. On its way, with the damp sheet of paper, it passes between the press roll (described below) and the dryer roller. Both in contact and under pressure, cause a further amount of water to be removed before the sheet is transferred to the heating and evaporation drying section.

The press roll can be a simple rubberized roll or a suction roll when it has a perforated liner for applying vacuum in a particular circular sector internally. The felt, still with the damp sheet, embraces the suction roll press in this circular sector where there is vacuum, called the angle of embrace. In this sector part of the water is removed by the drag effect produced by the air flow that flows from the sheet, through the felt going into the perforated jacket and from there to the internal static box where the vacuum is applied. At the end of the vacuum clamping angle the felt still with the sheet enters the actual pressing zone against the dryer cylinder. From this point on the paper leaves the felt and transfers to a dryer cylinder where it already has a solid content between 36 and 44%.

The sheet naturally adhered to the surface of the large diameter dryer cylinder receives heat from the outside, which is provided by the hot air blowing from the drying hood, as well as heat from conducting the steam-heated plate from the inside. On leaving the dryer roll the paper has a solid content of between 92 and 94%, suitable for the intended end use, and can then be fed to the reel and can then be stored in the form of large reels also known as a jumbo roll.

As far as the state of the art is concerned, lower speed machines, typically 200 to 800 meters per minute, do not have a suction press roll but a simple press roll, preceded by a simple static vacuum box, combined or not. with a steam applicator box as indicated by the arrow "A" in Figure 1.

The development of the paper machines continued to adopt the suction press roller, as previously described, which can also operate in close proximity to a steam box, such a configuration (pictured in figure 2 and as indicated by the arrow). "B") compatible with production speeds from 600 to 2,000 meters per minute and up.

However, with respect to the above state of the art some negative aspects can be related:

a) In general the paper machines equipped with suction roll press have high vacuum consumption consequently increasing the operating cost related to the electric power. (b) high maintenance cost, particularly for machines employing the suction roller press system which is a complex component of equally high cost of purchase and which to undergo periodic maintenance procedures needs to be replaced by an equal roller; that is to say that the

papermakers always need to have a pair of suction press rollers per machine (one in use and one in reserve); c) When using conventional static vacuum housings belonging to the prior art the machines are limited with respect to speed increase, e) still with respect to the suction roller press, this presents an intrinsic problem of high consumption of

vacuum due to the fact that the thickness of the rubber-added bronze jacket exits and enters the vacuum zone with each revolution bringing with it a large volume of fake air at atmospheric pressure that will add to the usable vacuum volume. False volume this which in many cases

reaches 50% of the total required vacuum volume, h) the suction press rollers, due to their characteristic design, do not allow the possibility of controlling the drying profile through zone / strip flow valves.

In view of the drawbacks of the prior art, "PAPER SHEET RESIDUAL MOISTURE REMOVAL MOISTURE EQUIPMENT USING A PAPER PRODUCTION LINE" which is configured as a vacuum unit which is intended to be Installed in the press section of the papermaking machines, this equipment physically presents a configuration analogous to a box that can be mounted in various positions along the felt mat line.

The equipment treated herein can be used in place of the suction roll press thus representing a substantial reduction in the overall cost of the papermaking machine immediately.

The equipment proposed here, unlike that found in prior art vacuum housings, has its own means for reducing the friction that is imposed on the passage of the felt, which is why it allows such a component to maintain its useful life. even with expressive contact area and aspiration.

The present equipment, still

Compared to conventional suction press roller systems, it has a higher efficiency in the use of energy required for its operation. This reduction is between 40 and 50% of the power consumption of vacuum pumps which is one of the most consumed equipment of papermaking machine. It also allows to operate with only one press or smaller load on it, which contributes to substantially increase the bulk (paper) manufactured. On the other hand, compared to the conventional vacuum box it has greater efficiency in removing moisture from the paper and therefore enables increased production reversing such a reduction in operation cost of the paper machine as a whole.

The "PAPER SHEET RESIDUAL MOISTURE REMOVAL MOISTURE EQUIPMENT USING A PAPER PRODUCTION LINE" object of this patent application can be understood in all its functional and design particularities from the figures below. Figure 1 illustrates a schematic view of a papermaking machine in a first state-of-the-art configuration;

Figure 2 illustrates a schematic view of a papermaking machine according to a second configuration also belonging to the prior art; Figure 3 illustrates a perspective view of a papermaking machine equipped with the

equipment in question; Figure 4 shows a side view of the machine depicted in Figure 3;

Figure 5 illustrates a side view of the machine depicted in Figure 3, where the path is shown.

executed by the paper from the moment it leaves the inbox until the moment it arrives at the reel, this path being represented by the arrows "T"; Figure 6 illustrates a side and schematic view of the

papermaking machine depicted in figures 3, 4, and 5, where the main sections of the papermaking machine are marked, where the drainage section (indicated by the arrow) can be seen in order.

"C"), pressing (indicated by arrow "D") and drying (indicated by arrow "E"); Figure 7 illustrates an enlarged detail of the assembly region of the equipment being treated with respect to the structure of a papermaking machine, where the main components of the paper machine are depicted.

located near this equipment;

Figure 8 illustrates an overview and perspective view of the equipment discussed herein; Figure 9 shows a detail of one of the sides of the

equipment treated here, where are the connection for the vacuum line coupling, the equipment lubrication system supply and the drainage pipe of the paper and felt;

Figure 10 shows a detail of the opposite side to the

shown in figure 9 and where the vacuum flow control knobs are pictured in each zone of the structure of the present equipment; Figures 11, 12, 13, 14, 15 and 16 illustrate each of the

orthogonal views of the structure of the present equipment;

Figure 17 illustrates a front view of the structure of the equipment ■ treated here, with the front face of its wear top depicted in

Partial section to allow the visualization of the internal region of the present equipment, where can be seen, among other components, the water pipes that feed the system for lubrication of the showers integrated to the surface of the wear top, said figure 17 also allows the visualization internal baffles that allow you to use the

present equipment upwards (face-down wear face); Figure 18 shows a cross-sectional view of the structure of the present apparatus, which is taken along the section line "A" - "A" indicated in

Figure 17;

Figure 19 illustrates a section taken from Figure 18, as shown in Figure

indicated by the cut line "B" - "B"; Figure 20 illustrates a perspective view of one of the air / water separation units comprising the

present equipment; Fig. 21 illustrates a rear view of the present apparatus, which has its rear wall depicted in partial section to allow a view of the valve control system.

used to promote the vacuum control which, acting in the function of drying profile control, said view also depicts the centrifugal water separators, as well as the tubes that lead the rod or cable to drive the

mentioned valves and also the knobs that are used to control the vacuum flow in each zone of the present equipment; Fig. 22 illustrates a perspective view taken in isolation of the wear cap of the present apparatus; Fig. 23 illustrates another isolated and partial sectional view of the wear cap, where the holes or channels of the shape adjusting combs are depicted in detail; Fig. 23A illustrates a side view of the wear cap pictured in isolation in Fig. 23;

Fig. 24 illustrates a sectional view of the wear cap, which view is taken along the "C" - "C" section line of Fig. 23; Fig. 25 illustrates another sectional view of the wear cap which is one of the components of the present equipment, said view being taken along the "D" - "D" section line of Fig. 23; Fig. 26 illustrates an isolated perspective view of one of the sliding bearing bases comprising the present equipment; Fig. 27 illustrates an enlarged detail taken from Fig. 26, as indicated by arrow "F"; Figures 28, 29, 30 and 31 illustrate orthogonal views of the sliding bearing base incorporating the present apparatus; Fig. 32 illustrates an exploded perspective view of the front region of the present apparatus, where the major components of that region can be seen;

Figures 33, 34, 35 and 36 illustrate enlarged details taken from Figure 32 as indicated by the arrows "G", "Η", "I" and "J";

37 illustrates an exploded perspective view of the rear region of the present apparatus, where the major components of that region can be seen;

Figures 38, 39 and 40 illustrate enlarged details taken from Figure 37 as indicated by the arrows.

"Κ", uL "and" M ";

Fig. 41 illustrates a perspective view of the present equipment which alternatively has a constructive variant of the format adjusting device which operates by means of

blade;

Fig. 42 illustrates an enlarged detail taken from Fig. 41, as indicated by the arrow "N";

Fig. 43 illustrates a perspective view of the equipment herein treated further by incorporating the

constructive variant of the blade system shape adjusting device, said view depicts the opposite angle of the equipment illustrated in FIG. 41; and Fig. 44 illustrates an enlarged detail taken from Fig. 43,

as indicated by the arrow O.

Accordingly how much

As illustrated in the above figures, it can be seen that the vacuum removal equipment, which is generally indicated by reference 100, has a main frame 1 similar to a split metal housing 2 internally by an intermediate plate 3 separating a front region 4 corresponding to the vacuum zones of a rear region 5 corresponding to the water / air separation zone.

The front region 4 of the main frame 1 is closed by a one piece block 6 made of High Density Polyethylene or even ceramic and has a contact surface 7 that comes in direct contact with the felt of the felt mat.

Said monoblock plate 6, also referred to as wear pad 6, has regions 8 covered by through holes 9 through which water removed from both the felt mat and the wet paper sheet by vacuum action is conveyed to the region. front 4 of the main structure 1.

The regions 8 are separated by parallel channels 10 communicated by short transverse holes 11 which, in turn, are connected to pipes 12 that feed the transverse channels 11 and then water is then transferred to the channels 10 and then to the channels 10. wear top surface 6.

The two extreme sides of the wear cap 6 with respect to the through-hole alignments 9 include corresponding parallel channels 13 which receive the mounting of cylindrical shanks 14 which incorporate devices 15 known as shaping combs. Each of the devices 15 is configured to assemble a given number of cylindrical rods 14, which are attached at one end to a bar 14A, which in addition to grouping the cylindrical rods 14 also incorporates adjusting devices 14B configured as spindles which, by turning in both directions, advance or retract with respect to bar 14A and thereby allow the cylindrical rods 14 to be introduced deeper or less deeply into the respective transverse channels 13.

The devices 15 act to allow the effective and full width measurement of the wear cap 6 with respect to the suction through holes 9 to be adjusted.

The shape adjustment provided by the devices 15 prevents the vacuum applied through the through holes 9 from being communicated to the holes 9 closest to the side edges of the wear cap 6 which are under a felt strip that does not have the paper sheet on its surface. moist. In other words the devices 15 allow the vacuum to be applied only to the exact width of the wet paper sheet being adhered to the felt and thereby prevent air from being sucked in improperly from the outside environment.

When the adjusting devices 14B are threaded to cause the cylindrical shanks 14 to advance in their respective parallel channels 13, this forward movement corresponds to a relative reduction in the width of the vacuum area applied through the wear cap 6 and in reverse, when adjusting the cylindrical rods so that they are retracted relative to their channels 13, the relative increase in the width of the vacuum area occurs.

Optionally, and as shown in figures 41, 42, 43 and 44, device 15 in a construction variant indicated by reference 15A may be based on blades or plates 14B which are also used to regulate suction application on the sides of the lid. 6, this constructive variant being able to generate a simpler and lower cost device. Unlike the cylindrical rods 14 of the

device 15 which are inserted into the channels 13 of the wear cap 6, the device 15A has its blades 14B inserted into corresponding housings 13A which can be incorporated into the wear cap 6, with the mounting of the blades 14B relative to their respective housings 13A occurs by simple sliding.

Each of the blades 14B has a respective handle 14B 'through which the blades can be manually moved to enlarge or reduce the width of the wear pad vacuum application area 6.

Mounted next to the inner face 16 of the wear cap 6 are provided deflector assemblies 17, which are defined by parallel alignments of curved blades 18 mounted on pairs of crossbars 19, said deflectors 17 being accommodated in each of the two. The hollow chambers delimited by internal laminar partitions 20, arranged transversely to the deflectors 17 and defining a zigzag path within the front region 4.

The laminar partitions

The internal sections 20 occupy practically all the internal space of the front region 4 maintaining contact with the face 21 of the intermediate plate 3, which intermediate plate 22 has a plurality of metallic conduits 23 opposite it, which serve as a place for mounting the respective metal rods. 24 which on the one hand are externally connected to respective manually operated control knobs 25, the opposite end of each of the flexible metal rods 24 being connected to a gate valve 26 which can be selectively moved to obstruct or release so controlled, the passage of air / water flow that is generated by applying vacuum to the rear region 5 of the main structure 1.

The vacuum is communicated within the main frame 1 via a nozzle 27 which is connected through a proper pipe to an external vacuum generating unit (not shown).

The vacuum initially applied to the rear region 5 sucks through the wear cap 6 and into the front region 4 the volume of water and air sucked from the felt and the damp sheet of paper, with this volume of water / air being directed by the deflectors 17 to the lower region of the front region 4, where the gate valves 26 are arranged which control the access of this flow to the rear region 5.

The air / water flow AA sucked into the rear region 5 is directed by the gate valves 26 directly into the respective separators 28, each of which is formed by an initial conduit portion 29 which is tangentially connected. , to a vertical tube 30, where a centrifugal (cyclone) movement occurs as a result of the tangential entry of this flow.

The centrifugation that takes place inside the vertical tube 30 forces the heaviest portion of water "A" to settle on the inner walls of this tube, leaving the central region of the tube free for the passage of air flow "Al" (now already separated from the Water).

The air flow "Al" rises and is drained through a nozzle 27 being directed to the vacuum generating unit, while water "A", being naturally heavier, is directed to the lower level of the rear region 5, from where it is gravity drained through the nozzle 31. Still with respect to the valves

26, these can be individually adjusted with respect to the flow of air / water flow through them, thus allowing, as a consequence, the effective regulation of the suction effect that is applied to the regions of the wear top 6.

Thus, within the field established by the laminar partitions 20 and corresponding to each of the valves 26, it is possible to individually adjust the vacuum level that is applied to certain ranges of the wear cap 6, so that it will be found that Since the forming paper has zones with higher or lower moisture content, these zones may receive higher or lower vacuum pressure to adjust the suction. Valves 26 may be manually adjusted via devices 25, which does not preclude the possibility that this adjustment may be performed by remote controls activating electromechanical or similar actuators actuating said valves 26.

The equipment treated here has a lubrication system that aims to reduce the friction of the felt on the wear top. This lubrication system operates by applying water to the surface of the wear cap 6, having as its main agent the parallel channels 10.

Another feature of

The present equipment is that it can be equipped with two pairs of bearings 32, each of which allows sliding adjustment of the rollers 41 mounted thereon (one roller 41 for each pair of bearings 32). Each bearing 32 is formed by a base plate 33, which has its own screws 33A provided with nuts 33B to allow it to be mounted to the frame of the present equipment. Each bearing 325 has, with respect to the base plate 33, threaded holes 34 (one of which is shown in Figure 26) which receive respective bolt assemblies 35 and washer 36 which secure a sliding plate 37 next to the plate. 33, said bolts 35 traverse oblong holes 38 which 10 allow plate 37 to slide relative to base plate 33 through a recessed area 33 '.

The base plate 33 receives the mounting of a bracket 39 which is fixed to the sliding plate 37 by screws 40, said bracket 39 serves as a place for mounting one of the bearing housings of the respective roller 41.

The bearings 32 are mounted directly to the faces of the main frame Ide such that the felt mat can pass around the rollers 41 in such a condition as to allow it to face the contact face surface 7 of the wear plate 6.

The possibility of

The sliding of the plate 37 ensured by a movement device 42 based on an adjusting screw 43 allows the rollers 41 to be adjusted relative to the level of said contact face 7 thus ensuring precise adjustments to compensate, for example, the decrease the thickness of the wear plate 6 resulting from the effective wear of this component or variation in the diameter of the rollers.

The equipment treated herein may operate in conjunction with a 5 steam application unit 43 which is positioned on the opposite side of the felt mat, which position allows the vacuum effect to provide steam suction along with water and not simply air together with the water. The steam administered by unit 43 is produced externally and is led to the fairing through appropriate piping.

The use of steam increases the paper's ability to remove water from the paper by reducing the paper's surface tension, as well as increasing the temperature of the paper, thus ensuring that the paper, after passing through the present equipment, has a level of humidity that still remains. may be transferred to the drying section under a more favorable condition.

Claims (15)

1. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A VACUUM PRODUCTION LINE", such equipment being generally indicated by reference (100) and having a main structure ( 1) configured analogously to a metal box (2), the equipment (100) being characterized by the fact that its main structure (1) is internally divided by an intermediate plate (3), which separates a front region ( 4) corresponding to the vacuum zones of a rear region (5) corresponding to the water / air / vapor separation zone; the front region (4) of the main frame (1) is closed by a monoblock plate (6) also defined as a wear top which has a contact surface (7) that comes in direct contact with the felt of the felt mat ; the wear top (6) has regions (8) covered by through holes (9) through which water removed from both the felt mat and the damp sheet of paper by the action of vacuum is fed to the front region ( 4) the main structure (1); the regions (8) are separated by parallel channels (10) communicated by short transverse holes (11), which in turn are connected to pipes (12) that feed the transverse channels (11) and from them water to them. it is then transferred to the channels (10) then reaching the surface of the wear cap (6); the two extreme sides of the wear cap (6) with respect to the through-hole alignments (9) include corresponding parallel channels (13) which receive the mounting of cylindrical shanks (14) incorporating devices (15) referred to as combs for shape adjustment; mounted to the inner face (16) of the wear cap (6) are provided baffle assemblies (17) which are defined by parallel alignments of curved blades (18) mounted on pairs of crossbars (19); said deflectors (17) are accommodated in spans delimited by internal laminar partitions (20), arranged transversely to the deflectors (17); the internal laminar partitions (20) occupy a substantial portion of the internal space of the front region (4) maintaining contact with the face (21) of the intermediate plate (3), which intermediate plate which by its opposite face (22) is mounted. plurality of metal conduits (23), which serve as the mounting location of respective flexible metal rods (24) which on the one hand are externally connected to respective manually operated control knobs (25), with the opposite end of each of the metal rods The flexible hose (24) is connected to a gate valve (26) which can be selectively moved to obstruct or release in a controlled manner the air / water / steam flow that is generated by applying vacuum to the rear region (5). the main structure (1); the vacuum is communicated within the main structure (1) through a nozzle (27) which is connected through a proper pipe to an external vacuum generating unit; the vacuum initially applied to the back region (5) sucks through the wear cap (6) and into the front region (4), the volume of water and air / vapor sucked from the felt and the damp sheet of paper being whereas this volume of water / air / steam is directed by the deflectors (17) to the lower region of the front region (4), where the gate valves (26) which control the access of this flow to the rear region (5) are arranged; the air / water (steam) flow (AA) drawn into the rear region (5) is directed by the gate valves (26) directly into the respective separators (28), each of which is formed by a portion of initial conduit (29) which is tangentially connected to a vertical tube (30) where a centrifugal movement occurs as a result of the tangential inlet of this flow; the centrifugation that takes place inside the vertical tube (30) forces the heaviest portion of water (A) to settle on the inner walls of this tube, leaving the central region of it free for the passage of air flow (Al) now separated from water; air flow (Al) rises and is drained through a nozzle (27) and is directed to the vacuum generating unit, while water (A) is directed to the lower level of the rear region (5) from which it is drained. by gravity through the nozzle (31); the valves (26) can be individually adjusted for the flow of air / water / steam flow through them, thereby allowing, as a consequence, effective regulation of the suction effect that is applied to the regions of the wear (6); The equipment (100) has a lubrication system that aims to reduce the friction of the felt on the wear cap (6), which lubrication system operates by applying water on the surface of the wear cap (6), having as its main agent of this system the parallel channels (10); The main frame (1) of the equipment (100) has two pairs of bearings (32), each of which allows the sliding adjustment of the rollers (41) mounted therein, one roller (41) for each pair of bearings (32). ). 2. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT THROUGH VACUUM APPLICATION USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that each of the devices (15) acting as The shape adjustment comb is configured to assemble a given number of cylindrical rods (14), which are attached at one end to a bar (14A), which in addition to grouping the cylindrical rods (14) also incorporates adjusting devices (14B) configured as spindles which, when rotated in two directions, advance or retract relative to the bar (14A) and thereby allow the cylindrical rods (14) to be introduced deeper or less deeply into the respective channels. cross sections (13). 3. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A PAPER PRODUCTION LINE" according to claim 2, characterized in that the devices (15) act in the direction of allow the total and effective measurement of the wear cap (6) with respect to the suction through holes (9) to be adjusted. 4. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT THROUGH VACUUM APPLICATION USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the size adjustment device can optionally , be configured according to a design variant indicated by reference (15A), which design variant is based on blades or plates (14B) which are also used to regulate suction application on the sides of the wear top (6); each of the devices (15A) has its blade (14B) inserted into a corresponding housing (13A) that can be incorporated into the wear cap (6), the mounting of the blades (14B) of the devices (15A) relative to their respective housings (13A) occur by sliding; each of the blades (14B) has a respective handle (14B ') through which the blades can be manually moved to enlarge or reduce the width of the wear pad vacuum application area (6). 5. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING VACUUM USE USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the deflectors (17) are accommodated in gaps. delimited by internal laminar partitions (20), arranged transversely to the deflectors (17). 6. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A PAPER PRODUCTION LINE" according to claim 5, characterized in that the laminar partitions (20) define a zigzag path within the front region (4) of the main frame (1) of the equipment (100). 7. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that within the field established by the laminar partitions (2 0) and corresponding to each of the valves (26) it is possible to individually adjust the vacuum level that is applied to certain ranges of the wear cap (6) thus providing a condition of drying profile adjustment. 8. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT THROUGH VACUUM APPLICATION USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the valves (26) can be adjusted manually. through the devices (25). 9. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the valves (26) can be adjusted by remote controls activating electromechanical or similar actuators actuating said valves (26). 10. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT THROUGH VACUUM APPLICATION USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the lubrication system is incorporated into the worktop. wear (6). 11. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A VACUUM PRODUCTION LINE" according to claim 1, characterized in that each bearing (32) is formed by a base plate (33), which has its own screws (33A) provided with nuts (33B) to allow its mounting next to the structure of the present equipment (100); each bearing (32) counts with respect to the base plate (33) with threaded holes (34) which receive respective screw assemblies (35) and washer (36), which fix a sliding plate (37) next to the base plate (33), said screws (35) pass through oblong holes (38) that allow plate (37) to slide relative to base plate (33) through a recessed area (33 '); the base plate (33) is mounted with a bracket (39) which is fixed to the sliding plate (37) by means of screws (40), said bracket (39) serves as a place for mounting one of the respective bearing housings roller (41). 12. "PAPER SHEET RESIDUAL MOISTURE REMOVAL EQUIPMENT USING A PAPER PRODUCTION LINE" according to claim 11, characterized in that the bearings (32) are mounted directly on the faces of the main frame (1) such that the felt mat can pass around the rollers (41) in such a condition as to allow it to face the surface of the contact face (7) of the wear top (6); The possibility of sliding plate (37) is ensured by a movement device (42) based on an adjusting screw (43) which allows the rollers (41) to be adjusted in relation to the level of said contact face (7). ). 13. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT BY APPLICATION OF VACUUM USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the wear top (6) is produced preferably in High Density Polyethylene. 14. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT BY APPLICATION OF VACUUM USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the wear top (6) is produced preferably ceramic. 15. "RESIDUAL PAPER SHEET MOISTURE REMOVAL EQUIPMENT BY APPLICATION OF VACUUM USING A PAPER PRODUCTION LINE" according to claim 1, characterized in that the equipment (100) treated herein can operate in conjunction with a steam delivery unit (43) which is positioned on the opposite side of the felt mat.