CN109868672A - Suction box, paper making equipment and papermaking process - Google Patents

Abstract

The present invention provides a kind of suction box, paper making equipment and papermaking process, the suction box includes panel, the panel includes: suction hole, regulating device, it is movably arranged in the suction hole, it can be moved along the length direction of the suction hole, to adjust the openings of sizes of suction hole position in the longitudinal direction or the suction hole.Through the above way, the present invention can be when suction box handles the fabric of different size or a certain fabric shifts in the position on suction box, realize that the position of suction hole and openings of sizes are corresponding with the position of the fabric and specification in relative position by adjusting the regulating device, with meet suction box can the l Water Paper page on the fabric and fabric to entire banner width be dehydrated, not only easy to operate and pumping efficiency is high.

Description

Suction box, paper making equipment and papermaking process

Technical field

The present invention relates to the papermaking of suction box used in paper making equipment field more particularly to papermaking and the application suction box Equipment and papermaking process.

Background technique

Suction box, the dewatering box that is otherwise known as, suction flat box etc. are widely used in helping net, blanket or wet in paper industry The dehydration of page.

Existing suction box generally includes panel, several suction holes is offered on panel, suction hole is close to fabrics such as net, blankets Medium, and accessed on suction box and vacuum equipment is set on vacuum equipment or suction box, negative pressure is formed at suction hole, so that In forming air-flow on the vertical plane of fabric movement direction, the moisture on fabric is on the one hand made to enter suction cabinet in company with air-flow, separately On the one hand under airflow function, fabric surface moisture evaporation rate is accelerated, to accelerate the l Water Paper page of fabric or fabric surface Dehydration.

Under normal circumstances, the width of suction box is configured to wider than fabric, and suction hole transverse width is also wider than fabric, With meet suction box can the l Water Paper page on the fabric and fabric to entire banner width be dehydrated, but since fabric is usual It is wound on multiple carrying rollers, in the actual production process, fabric can not be always maintained at horizontally solid during the motion Positioning is set, but slight shift laterally can occur, and the width that the paper web in addition manufactured paper with pulp can not maintain like every time works as pumping When the width of suction box is wide, non-covering fabric in the suction hole at suction box both ends, one side waste of energy, another aspect both ends The resistance of suction hole is small, so that the swabbing pressure in middle position reduces, reduces pumping efficiency, and when the width of suction box is smaller When, then it is not able to satisfy suction needs.

Summary of the invention

The invention mainly solves the technical problem of providing a kind of suction box to have regulating device on banner direction, to Stablize the swabbing pressure on banner direction, while the paper machine and papermaking process using the suction box being provided.

To solve above-mentioned technical proposal, a kind of technical solution that the present invention uses is:

A kind of suction box, wherein the suction box includes panel, and the panel includes:

Suction hole,

Regulating device is movably arranged in the suction hole, can be moved along the length direction of the suction hole, to adjust State the openings of sizes of suction hole position in the longitudinal direction or the suction hole.

Wherein, the suction hole penetrates through the length direction of the panel.

Wherein, the panel includes multiple spaced grizzly bars, the suction hole be arranged in the adjacent grizzly bar it Between；

The regulating device includes the sliding block being arranged in the suction hole, and the sliding block is used for the length along the suction hole Spend that direction is mobile, to adjust the openings of sizes of suction hole position in the longitudinal direction or the suction hole.

Wherein, the sliding block has two pieces, and two sliding blocks are separately positioned on the two sides of the suction hole.

Wherein, the suction box further includes guiding device, and the guiding device is arranged in the sliding block and the suction hole Inner wall between, the guiding device include setting gib block on the slide block and setting the suction hole inner wall, with The matched guide groove of gib block, the gib block are accommodated in the guide groove and can move horizontally along the guide groove.

Wherein, the suction box further includes a driving device, and the driving device is connect with the regulating device, the drive Dynamic device is one of a feed screw nut, hydraulic cylinder, linear motor, cylinder, electromagnet.

Wherein, the suction box further includes position sensor and controller, and the position sensor and the controller connect It connects, the controller is connect with the driving device, and the position sensor is for detecting fabric positions, and to the controller Send position signal, the controller receives the position signal that the position sensor is sent, and to the driving device Control signal is issued, so that the driving device drives the regulating device to move to scheduled direction and position.

Wherein, the regulating device includes multiple sliding blocks, and the suction box further includes being arranged in multiple sliding blocks Between linkage, the linkage connect with the driving device, synchronous under the driving of the driving device Drive multiple sliding blocks.

Present invention simultaneously provides a kind of paper making equipments, including forming part, wet transfer portion, drying section and suction as described above Case, wherein when the forming part includes the first fabric, and the wet transfer portion includes the second fabric, the suction box is described It is arranged close at first fabric or second fabric.

The present invention provides a kind of papermaking process, wherein the papermaking process is suitable for paper making equipment as described above, the side Method includes:

Base is formed on the first fabric of forming part；

First fabric and the base are rotated, the position of first fabric is detected by the suction box, is adjusted Save the position of the suction hole or the size of the suction hole；

First fabric and the base are dehydrated；

The base is transferred to drying section from wet transfer portion and paper web is dried.

The utility model has the advantages that the present invention can be used by being arranged in suction hole along the regulating device that suction hole length direction moves To adjust suction hole position in the longitudinal direction or openings of sizes.When the fabric or a certain kind of suction box processing different size are knitted Object when the position on suction box shifts, by adjust the regulating device relative position and the fabric position and Specification is corresponding, with meet suction box can the l Water Paper page on the fabric and fabric to entire banner width be dehydrated, not only Easy to operate and pumping efficiency is high.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of suction box use state of the invention；

Fig. 2 is the structural schematic diagram of one embodiment of suction box of the invention；

Fig. 3 is the partial enlargement diagram in I region in Fig. 1；

Fig. 4 is the enlarged partial sectional view in I region in Fig. 1；

Fig. 5 is the structural schematic diagram of one embodiment of paper making equipment of the invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

In description of the invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise clearly having The restriction of body.In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Example The process, method, system, product or equipment for such as containing a series of steps or units are not limited to listed step or list Member, but optionally further comprising the step of not listing or unit, or optionally further comprising for these process, methods, product Or other step or units that equipment is intrinsic.

Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and Implicitly understand, embodiment described herein can be combined with other embodiments.

The present invention will now be described in detail with reference to examples.

Referring to FIG. 1, the structural schematic diagram of one embodiment of suction box use state Fig. 1 of the invention；The present embodiment provides A kind of suction box 100, is generally used in paper machine, and the base 300 on fabric 200 and fabric 200 is dehydrated, it is possible to understand that , when suction box 100 is used for paper making equipment, the base 300 is l Water Paper page, certainly when suction box 100 is used for such as nonwoven When the manufacturing equipment of cloth, the base 300 is wet non-woven fabrics.

The suction box 100 is generally set to tabular including cabinet and the panel being arranged on cabinet, the panel, The panel includes length direction and width direction, and the length direction is 200 banner direction of fabric, and the width direction is to knit 200 traffic direction of object.The panel is arranged adjacent to fabric 200, and the fabric 200 is net, blanket in paper making equipment, it is possible to understand that , the panel side is towards fabric 200, and panel plane and 200 parallel interval of fabric are arranged, of course for more preferable It absorbing water from fabric 200, the panel and the fabric 200 contradict, and panel surface causes to wear to fabric 200 in order to prevent, Preferably, the panel towards 200 side of fabric be smooth flat, it is preferred that the panel surface roughness should be less than being equal to Ra1.6, the preferred panel surface roughness are less than or equal to Ra0.2, and the panel uses metal material, as steel, aluminium or Aluminium alloy, copper or copper alloy, the panel can also be using non-metallic materials such as plastics or ceramics.In one embodiment, institute Stating panel is plastics, and further, the plastics are polyurethane plastics.

Further, referring to FIG. 2, the structural schematic diagram of 100 1 embodiment of suction box Fig. 2 of the invention, wherein described Suction hole 111 and regulating device (not shown) are provided on panel, the regulating device is movably arranged in the suction hole 111, it can be moved along the length direction of the suction hole 111, to adjust the suction hole 111 position in the longitudinal direction or institute State the openings of sizes of suction hole 111.In use, when suction box 100 accesses vacuum equipment, through suction hole 111 from fabric 200 Water suction, in one embodiment, the suction hole 111 penetrate through panel length direction, so that the entire banner direction of fabric 200 is equal It can be absorbed water.Further, the suction hole 111 is uniformly distributed along panel width direction, in the present embodiment, the panel packet Multiple grizzly bars 110 are included, the grizzly bar 110 is in long strip, and its length is equal to panel length, and adjacent grizzly bar 110 is spaced setting, The suction hole 111 is arranged between adjacent grizzly bar 110.In one embodiment, 110 width of grizzly bar is equal, and edge Panel width direction equidistant arrangement, this is uniformly distributed the identical multiple suction holes 111 of size, is conducive to improve suction box The uniformity of 100 pairs of 200 water absorption course suction of fabric distribution avoids damage fabric.

Further, the suction hole 111 includes length direction, and it is long that 111 length direction of suction hole is parallel to panel Direction is spent, i.e., described 111 length direction of suction hole is parallel to 200 banner direction of fabric.

In one embodiment, the regulating device includes the sliding block 120 being arranged in suction hole 111, when the sliding block 120 along 111 length direction of suction hole to when moving in the middle part of the suction hole 111, the suction hole 111 is along its length Suction opening reduce, when the sliding block 120 is moved along 111 length direction of suction hole to 111 two sides of suction hole, The opening of suction hole 111 increases, further, when the regulating device includes two pieces of sliding blocks 120, two sliding blocks 120 are separately positioned on 111 two sides of suction hole, and it is big that the suction hole 111 can be adjusted from 111 liang of side directions of the suction hole It is small, certainly, the position of the suction hole 111 can also be adjusted by the relative motion of two sliding blocks 120: described in two When sliding block 120 is moved to described 111 the same side of suction hole, the position of the suction hole 111 is moved to 120 direction of motion of sliding block It is dynamic, so that the suction hole 111 and 200 location matches of fabric, when two sliding blocks 120 are moved to relatively close direction When, the length of the suction hole 111 is reduced, when two sliding blocks 120 move in the direction away from each other, the suction hole 111 length increases, so that the suction hole 111 adapts to the fabric 200 of different in width, that is, passes through two sliding blocks 120 relative motion makes the different location of the suction hole 111 with different length and along its length, so that described Suction hole 111 adapts to the fabric 200 of different banner width or the fabric 200 of different lateral positions.

Referring to FIG. 3, Fig. 3 is the partial enlargement diagram in I region in Fig. 1, in the present embodiment, the sliding block 120 is wrapped Opposite slider side wall 120a is included, the suction hole 111 includes suction hole side wall 111a, the slider side wall 120a and suction hole Side wall 111a is contradicted, so that the sliding block 120 in moving process, keeps the closing to suction hole 111.Further, described Slider side wall 120a and suction hole side wall 111a is smooth surface, so that the sliding block 120 is flexibly transported in suction hole 111 Dynamic, in one embodiment, the slider side wall 120a and suction hole side wall 111a surface roughness are less than or equal to Ra0.2.

Further, the sliding block 120 towards 200 side of fabric be smooth surface, to prevent limited slip block 120 to fabric 200 Abrasion is generated, further, the sliding block 120 should be flushed towards 200 one end of fabric with panel plane or slightly below panel plane. Further, the sliding block 120 further includes inclined plane part 120b, and inclined plane part 120b setting is in slider side wall 120a towards fabric On the one hand 200 one end make 120 surface of sliding block so that forming a Rong Shuiqu between slider side wall 120a and suction hole side wall Water flow, which can be gathered, holds pool, flows into suction box, on the other hand in 200 motion process of fabric, water is in 120 surface shape of sliding block At moisture film, lubricating action is generated, anti-limited slip block 120 generates abrasion to fabric 200.

Further, it is also provided with sealing device between sliding block 120 and suction hole 111, so that sliding block 120 is protected The closing of the suction hole 111 to 120 position of sliding block is held, the sealing device can be gasket etc., it is preferred that the sliding block 120 be polyurethane plastics, so that sliding block 120 keeps the closing to suction hole 111, while flexibly being moved in suction hole 111.

Further, referring to FIG. 4, Fig. 4 is the enlarged partial sectional view in I region in Fig. 1, the sliding block 120 and suction Guiding device is additionally provided between the side wall 111a of hole, the sliding block 120 and the suction hole 111 is arranged in the guiding device Between inner wall, the guiding device includes the gib block 121 being located on the sliding block 120 and the inner wall that suction hole 111 is arranged in With the matched guide groove of gib block 121, in the present embodiment, the guide groove is arranged on grizzly bar 110, and the gib block 121 includes Length direction, 121 length direction of gib block is parallel with 111 length direction of suction hole, and gib block 121 is accommodated in guide groove, So that sliding block 120 is moved along the direction that guiding device limits, it is in the prior art that certain guiding device is also possible to other Guiding device, such as guide groove guide rail, guide hole guide post, guide wheel.

Further, the regulating device further includes a driving device 130, for driving the regulating device along predetermined party To movement, the driving device 130 is a feed screw nut in the present embodiment, specifically, the feed screw nut includes a lead screw And one be fixed in rack 131 with the matched nut of lead screw, the lead screw length direction and 111 length direction of suction hole are flat Row, lead screw one end are connect with the regulating device, and the other end passes through the nut, when rotating the lead screw, the lead screw edge The lead screw axis direction movement, so that the regulating device be driven to move.In order to facilitate the lead screw is rotated, implement at one In example, the lead screw is additionally provided with handwheel 132 far from one end of the regulating device.Certainly, the lead screw is far from the adjusting One end of device can also be connect with power device, such as motor, internal combustion engine, air motor, hydraulic motor, can be driven Lead screw rotation.

Further, the driving device 130 is also possible to other telescopic devices, as hydraulic cylinder, linear motor, cylinder, Electromagnet etc..

In one embodiment, the regulating device includes multiple sliding blocks 120, and multiple sliding blocks 120 can be set It in one suction hole 111, also can be set in multiple lawsuit suction holes 111, and the cunning in each suction hole 111 The number of block 120 is identical or different.Further, it please continue to refer to Fig. 3 and Fig. 4, is additionally provided between the multiple sliding block 120 Linkage, the driving device 130 are connect with the linkage, for driving the multiple sliding block 120, such as in this implementation In example, there are three the sliding blocks 120, and the linkage includes a connecting rod 122, and the connecting rod 122 is threaded through three cunnings On block 120, and three sliding blocks 120 are connected to integral, one end of the driving device 130 and the connecting rod 122 company It connects, when the driving device 130 is stretched out, three sliding blocks driving the connecting rod 122 and connect with the connecting rod 122 120 move synchronously.

Further, the regulating device includes multiple driving devices 130, the driving device 130 and the cunning Block 120 is correspondingly arranged, so that each driving device 130 drives the corresponding sliding block 120.In one embodiment, with The corresponding multiple sliding blocks 120 of the driving device 130 are arranged in described 111 the same side of suction box.Certainly, by improving institute The structure of driving device 130 is stated, the corresponding multiple sliding blocks 120 of the driving device 130 can be made to be arranged in the suction Case 111 is not ipsilateral.

Further, described with continued reference to FIG. 3, the suction box 100 further includes position sensor 140 and controller Position sensor 140 is arranged in the rack 131, sends position signal for detecting 200 position of fabric, and to controller, The controller receives the position signal that the position sensor 140 is sent, and issues control signal to driving device 130, from And make the driving device 130 that the regulating device be driven to move to scheduled direction and position.It should be understood that the control Device is electrically connected with driving device 130, piping connection or optical fiber are connect, specifically, when the driving device 130 is motor, electromagnetism When iron, the controller is electrically connected with driving device 130, when the driving device 130 is hydraulic motor, air motor, hydraulic When cylinder, cylinder, the controller is connect with 130 pipeline of driving device.

Further, the position sensor 140 can be in ultrasonic sensor, optical sensor, electromagnetic sensor It is a kind of.

The controller can for PLC (Programmable Logic Controller, programmable logic controller (PLC)), FPGA (Field-Programmable Gate Array, field programmable gate array), CPU (Central Processing Unit, central processing unit), one of single-chip microcontroller (Microcontrollers).

Further, the controller is also configured with storage unit, which is stored with pre-set text, image, sound Message breath, such as " please adjust ", for passing through display device, audio devices, communication device to control centre, user or maintenance Personnel issue the feedback information adjusted.

Further, the suction box 100 is connect with vacuum equipment pipeline, so that suction box 100 is de- to fabric 200 Water, the vacuum equipment can be lobe pump, piston pump etc..

Referring to FIG. 5, the structural schematic diagram of one embodiment of paper making equipment of the invention, the paper making equipment includes molding Portion, wet transfer portion and drying section.Wherein, forming part includes the first fabric 200, and wet transfer portion includes the second fabric 200, in neighbour It is provided at nearly first fabric 200 or the second fabric 200 such as above-mentioned suction box 100.

The forming part is used to paper making raw material sizing material forming be paper web, specifically, the forming part includes 500 He of head case Corresponding first fabric 200.The head case 500 receives by dissipating the processes such as slurry, with slurry that treated fibrous suspension, and to shifting Jet fiber suspension on dynamic first fabric 200, fibrous suspension drainage on first fabric 200, is configured to The base 300 of hygrometric state, i.e. l Water Paper page, flow box is entirely laterally extended along first fabric 200, for knitting described first Slurry is sprayed in the entire transverse direction of object 200, to be formed with first fabric 200 substantially with the wide base 300.In neighbour At least one is provided at nearly first fabric 200 such as above-mentioned suction box 100, the suction box 100 includes panel, the panel It is parallel with first fabric 200, and 100 length direction of the suction box is parallel with 200 banner direction of the first fabric.It can With understanding, the length of the suction box 100 should be greater than the banner width of first fabric 200.

Wet transfer portion is used to molding paper web obtained by forming part being transferred to drying section and paper web is dried.Described wet turn Shifting portion includes the second fabric 201 of a series of delivery roll 210 and the closed circular around the delivery roll 210, drying section with For drying cylinder 400 is dry, shows the drying cylinder 400 and connect with second fabric 201 of wet transfer portion.Wet transfer portion is by institute It states base 300 and is transferred on drying section and make further drying.It is appreciated that drying section is not limited to this kind of drying, existing skill Other drying modes also can be used in the present invention in art.

Optionally, it is provided with suction box 100 as described above simultaneously at second fabric 201.

First fabric 200 usually in the foregoing description is net, and second fabric 201 is blanket.Certainly some Paper making equipment includes multiple first fabrics 200 or multiple second fabrics 201 in embodiment, optionally in institute It states and is provided with suction box 100 at the first fabric 200 and/or second fabric 201.

Preferably, position sensor 140 is set in 100 upstream of suction box, for detecting first fabric 200 Position, and position signal is sent to the suction box 100, to adjust in the suction box 100 position of suction hole 111 or big It is small.Certainly, when being provided with suction box 100 at second fabric 201, the suction box 100 also includes position sensor 140, and the upstream of the suction box 100 is set, to monitor the position of second fabric 201.

The present invention is also corresponding to provide a kind of papermaking process that papermaking is carried out by above-mentioned paper making equipment.Papermaking provided by the invention Its step of method includes:

Base 300 is formed on the first fabric 200；

First fabric 200 and the base 300 rotate, and monitor the position of first fabric 200, adjust suction box The position of suction hole 111 or size on 100, the suction box 100 are dehydrated first fabric 200 and the base 300；

The base 300 is transferred to drying section from wet transfer portion and paper web is dried.

It further, further include that the second fabric 201 is set in the wet transfer portion, the suction box 100 is to described second The step of fabric 201 and base are dehydrated.

In conclusion it includes panel that the present invention, which provides a kind of suction box, paper making equipment and papermaking process, the suction box, The panel includes: suction hole, and regulating device is movably arranged in the suction hole, can be along the length direction of the suction hole It is mobile, to adjust the openings of sizes of suction hole position in the longitudinal direction or the suction hole.By the above-mentioned means, this Invention can pass through when suction box handles the fabric of different size or a certain fabric shifts in the position on suction box Realize the position and specification phase of the position and openings of sizes of suction hole with the fabric in the relative position for adjusting the regulating device It is corresponding, with meet suction box can the l Water Paper page on the fabric and fabric to entire banner width be dehydrated, not only operation side Just and pumping efficiency is high.

Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field is included within the scope of the present invention.

Claims (10)

1. a kind of suction box, which is characterized in that the suction box includes panel, and the panel includes:

Suction hole,

Regulating device is movably arranged in the suction hole, can be moved along the length direction of the suction hole, to adjust the pumping The openings of sizes of sucker position in the longitudinal direction or the suction hole.

2. suction box as described in claim 1, which is characterized in that the suction hole penetrates through the length direction of the panel.

3. suction box as claimed in claim 2, which is characterized in that the panel includes multiple spaced grizzly bars, described Suction hole is arranged between the adjacent grizzly bar；

The regulating device includes the sliding block being arranged in the suction hole, and the sliding block is used for along the length side of the suction hole To movement, to adjust the openings of sizes of suction hole position in the longitudinal direction or the suction hole.

4. suction box as claimed in claim 2, which is characterized in that the sliding block has two pieces, and two sliding blocks are respectively set In the two sides of the suction hole.

5. suction box as claimed in claim 3, which is characterized in that the suction box further includes guiding device, the guiding dress It installs between the sliding block and the inner wall of the suction hole, the guiding device includes the guiding of setting on the slide block In the suction hole inner wall and the matched guide groove of the gib block, the gib block is accommodated in the guide groove simultaneously for item and setting It can be moved horizontally along the guide groove.

6. suction box as described in claim 1, which is characterized in that the suction box further includes a driving device, the driving Device is connect with the regulating device, and the driving device is a feed screw nut, in hydraulic cylinder, linear motor, cylinder, electromagnet One kind.

7. suction box as claimed in claim 6, which is characterized in that the suction box further includes position sensor and controller, The position sensor is connect with the controller, and the controller is connect with the driving device, and the position sensor is used Position signal is sent in detection fabric positions, and to the controller, the controller receives what the position sensor was sent The position signal, and issue control signal to the driving device so that the driving device drive the regulating device to Scheduled direction and position movement.

8. suction box as claimed in claim 6, which is characterized in that the regulating device includes multiple sliding blocks, the pumping Suction box further includes the linkage being arranged between multiple sliding blocks, and the linkage is connect with the driving device, is used It is synchronous to drive multiple sliding blocks under the driving in the driving device.

9. a kind of paper making equipment, which is characterized in that the paper making equipment includes: forming part, wet transfer portion, drying section and such as weighs Benefit requires suction box described in 1-8, wherein when the forming part includes the first fabric, and the wet transfer portion includes the second fabric, The suction box is arranged close at first fabric or second fabric.

10. a kind of papermaking process, which is characterized in that the papermaking process is suitable for paper making equipment as claimed in claim 9, described Method includes:

Base is formed on the first fabric of forming part；

First fabric and the base are rotated, the position of first fabric is detected by the suction box, adjusts institute State the position of suction hole or the size of the suction hole；

First fabric and the base are dehydrated；

The base is transferred to drying section from wet transfer portion and paper web is dried.