CN113201959B - Paper edge control device in papermaking equipment and use method thereof - Google Patents
Paper edge control device in papermaking equipment and use method thereof Download PDFInfo
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- CN113201959B CN113201959B CN202110573874.6A CN202110573874A CN113201959B CN 113201959 B CN113201959 B CN 113201959B CN 202110573874 A CN202110573874 A CN 202110573874A CN 113201959 B CN113201959 B CN 113201959B
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- 238000000034 method Methods 0.000 title abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000009966 trimming Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 78
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/56—Deckle frame arrangements
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F2/00—Transferring continuous webs from wet ends to press sections
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
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- Paper (AREA)
Abstract
The invention discloses a paper edge control device in paper making equipment and a use method thereof, the paper making equipment comprises a paper-guiding roller, a couch roller, a guide roller, a piece of felt and a forming net, wherein the felt is synchronously pulled by the paper-guiding roller and the couch roller, the forming net is pulled by the couch roller and the guide roller, the paper edge control device is arranged close to the side of a contact area of the forming net and the paper-guiding roller, and blows out an air flow along the pulling direction of the forming net and another air flow vertical to the forming net, wherein the air flow along the pulling direction of the forming net absorbs a trimmed paper edge on the forming net, and the air flow vertical to the direction of the forming net penetrates through and blows to the felt, so that a paper web is absorbed on the felt. The paper edge control device is arranged beside a contact area of the paper guide roller and the forming net, one air nozzle of the paper edge control device sprays air flow towards the lower oblique direction along the transmission direction of the forming net to adsorb the edge trimming paper edge on the forming net, the other air nozzle is perpendicular to the forming net and blows towards the coarse cloth, paper web is adsorbed on the coarse cloth, the edge trimming paper edge is completely separated from the coarse cloth, the paper edge is stabilized, and the belt edge and the edge drop are avoided.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of papermaking, and particularly relates to a paper edge control device in papermaking equipment and a use method thereof.
[ background of the invention ]
The paper making is one of four inventions in ancient China, and according to the experience of the hemp fiber paper making, cailen improves the paper making technology and advances a great step forward. The paper making technology is introduced into Europe later, and after development, the paper making machine is invented abroad first later, raw materials are directly produced and processed into paper and paper boards, so that the production rate is greatly improved, defects possibly occurring in the production process are improved and treated by the technical perfection of the machine in modern times, and the production deficiency and the product quality are comprehensively improved undoubtedly.
The paper machine comprises a number of mechanisms responsible for performing a number of different processes, each part being a very important loop. The applicant finds that the defect of partial treatment exists between the forming part and the pressing part, the moving adjustment control process of the suction area of the paper guide roll is influenced by various factors such as a felt, the paper guide roll, the edge trimming of the paper edge, even the adjustment experience and the like, the paper web and the trimmed paper edge are not completely separated, the conditions of belt edge and edge drop are caused, and the production defect that the paper edge is unstable and the paper edge is broken easily occurs.
Through the exploration of the applicant, the paper web and the trimmed paper edge are effectively and completely separated to achieve the purpose of stabilizing the paper edge, the belt edge and the edge drop can be well avoided, and the normal operation of the papermaking process is controlled.
[ summary of the invention ]
In order to solve the existing problems in the background technology, the invention provides a paper edge control device in papermaking equipment and a use method thereof.
The invention adopts the following technical scheme:
paper margin controlling means among the papermaking equipment, papermaking equipment include paper guide roll, couch roll, deflector roll, coarse cotton cloth and forming network, wherein the coarse cotton cloth is drawn by paper guide roll and couch roll in step, the forming network is drawn by couch roll and deflector roll, paper margin controlling means sets up and is close to forming network is other with the region of paper guide roll contact to the one blows off in the same direction as air current towards forming network direction of draw and the air current of another strand perpendicular forming network, and wherein adsorbs deburring paper margin on the forming network in the air current of forming network direction of draw, and perpendicular forming network direction air current sees through and blows toward the coarse cotton cloth adsorbs the paper web on the coarse cotton cloth, paper margin controlling means has air pump, surge tank and air gun, surge tank links to each other through intake pipe and outlet duct with air pump and air gun respectively, set up the valve on the outlet duct, the inside rotatable push rod that is equipped with of air gun, and push rod one end stretches out outside the air gun tip, and the other end is that the chock separates the air gun internal partitioning is communicating first cavity and second cavity, is located the same size is seted up on the air port and the adjustable air nozzle angle of second on the air gun.
Furthermore, the angle adjusting range formed by the air nozzle and the axis of the air gun is within a sector area of 30-120 degrees.
Further, the air nozzle is a fan-shaped air nozzle.
Furthermore, a water-vapor separator is arranged in the pressure stabilizing tank, the bottom of the pressure stabilizing tank is connected with a drain pipe, a valve is arranged on the drain pipe, and the water-vapor separator is used for separating water and vapor of fluid generated by the air pump and discharging the fluid through the drain pipe.
Further, the use method of the paper edge control device comprises the following steps:
s1: assembling a paper edge control device, enabling an air gun to be close to a contact area of a forming net and a paper guide roller, keeping the distance between an air nozzle and the forming net to be 2cm, and rotatably adjusting a push rod to correspond to a position where paper edges are separated;
s2: adjusting the directions of the air nozzles on the first air port and the second air port to ensure that the directions of the two air nozzles are vertically fixed, wherein one air nozzle is drawn along the forming net in a parallel direction, and the other air nozzle is vertically towards the forming net;
s3: and starting an air pump, keeping the high-pressure air in a pressure stabilizing tank at a stable pressure, blowing the air out through two nozzles, drawing airflow in the parallel direction along a forming net to adsorb the edge of the edge paper on the forming net, blowing the airflow of the other air nozzle to the felt through the forming net to adsorb the paper web on the felt so as to completely separate the edge paper from the paper web, and discharging the separated water outside through a water and steam separator in the pressure stabilizing tank.
The invention has the following beneficial effects:
the normal performance of the felt and the paper drawing roller is well controlled, a paper edge control device is arranged beside a contact area of the paper drawing roller and the forming net, respective air nozzles on a first air port and a second air port are adjusted to be vertical to each other, the air nozzles are approximately 2mm away from the forming net, one of the air nozzles sprays air flow towards the lower oblique direction along the transmission direction of the forming net to form air pressure difference, the edge trimming paper edge is adsorbed on the forming net, the other air nozzle is vertical to the forming net and blows towards the felt, paper web is adsorbed on the felt, the complete effective separation of the edge trimming paper edge and the felt is realized, the paper edge is stabilized, and the occurrence of band edge and edge drop of a paper making device is avoided. The atmospheric pressure that surge tank produced the air pump is stabilized, improves the stability of air nozzle blowout air current, carries out stability control to the paper margin, and moisture separator separates moisture, avoids moisture to adhere to the shaping on the net, reduces the quality of shaping net, improves the work efficiency of squeezing the portion.
[ description of the drawings ]
FIG. 1 is a simplified schematic diagram of a paper edge control device of the present invention installed in a papermaking apparatus.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention adopts the following technical scheme:
fig. 1 shows a paper edge control device designed to be applied to a papermaking apparatus according to the present invention, the papermaking apparatus includes a paper-guiding roll 1, a couch roll 2, a guide roll 3, a felt 4, and a forming wire 5, wherein the felt 4 is synchronously pulled by the paper-guiding roll 1 and the couch roll 2, the forming wire 5 is pulled by the couch roll 2 and the guide roll 3, and the paper edge control device is disposed near a region a where the forming wire 5 contacts the paper-guiding roll 1.
The factors causing edge drop and belt edge in paper making are various, such as poor surface performance, poor smoothness, poor compactness and small adhesion of the felt; or the over-sizing or the blocking of the paper guide roller holes and the insufficient water pressure of the edge fixing squirt. After the above-described factors are eliminated by performing the detection and replacement in advance, the edge control device of the present embodiment is mounted on the apparatus, thereby avoiding the production defect problems.
The specific implementation principle of the paper edge control device is as follows: and making an air flow along the traction direction of the forming net 5 and another air flow perpendicular to the forming net 5, and blowing out the air flow, wherein the edge trimming paper edge is adsorbed on the forming net 5 by the air flow along the traction direction of the forming net 5, and the air flow along the direction perpendicular to the forming net 5 penetrates and blows to the felt 4 to adsorb the paper web on the felt 4. Therefore, the net mouth of the press part after forming can effectively and completely separate the trimmed paper edge from the paper web, stabilize the paper edge and avoid the defects of belt edge and edge drop.
In this embodiment, specifically, the paper edge control device includes an air pump 6, a surge tank 7, and an air gun 8.
The surge tank 7 passes through intake pipe 9 and outlet duct 10 with air pump 6 and air gun 8 respectively and links to each other, set up the valve on the outlet duct 10, the inside rotatable push rod 80 that is equipped with of air gun 8, push rod 80 one end is stretched out outside 8 tip of air gun, and the other end is chock plug 81, has the screw thread on the chock plug 81, and rotatory push rod 80 adjusts the air gun 8 and gos deep into the distance that is close to forming net 5 and paper guide roller 1 contact area, corresponds the position of paper limit separation, according to the fact free adjustment.
The choke plug 81 divides the interior of the air gun 8 into a first chamber 82 and a second chamber 83 which are communicated with each other, and the air guns 8 on both sides of the choke plug 81 are provided with a first air port 84 and a second air port 85 which have the same size, and the output of the pressure to the pressure stabilizing tank 7 is kept stable.
In order to carry out concentrated output to jet-propelled more all can dismantle the air nozzle that is equipped with adjustable angle on first gas port 84 and the second gas port 85, the air nozzle has the degree of freedom that can angle regulation, satisfies the multiple angle of air nozzle blowout air current to, preferentially, the air nozzle is fan-shaped air nozzle for the region of air current is fan-shaped distribution, and is even reliable.
From the above, further, the angle adjusting range formed by the air nozzles and the axis of the air gun 8 is in a sector area of 30-120 degrees, and in the present implementation, the vertical direction between the two air nozzles needs to be adjusted and fixed.
After the forming net 5 is positioned and formed, the water entering the pressing part is pressed to have a dryness of about 90 percent, the subsequent process is carried out, the higher dryness can be kept before the water enters the pressing part, the pressing efficiency can be improved, and because partial moisture brought into air by the air pump 6 during working enters the pressure stabilizing tank 7, a water-vapor separator is further arranged inside the pressure stabilizing tank 7, the bottom of the water-vapor separator is connected with a drain pipe 11, a valve is arranged on the drain pipe 11, and the water-vapor separator is used for carrying out water-vapor separation on the fluid generated by the air pump 6 and discharging the fluid through the drain pipe 11.
The paper edge control device is installed in the papermaking equipment, and the specific using method comprises the following steps:
s1: and (3) assembling the paper edge control device, enabling the air gun 8 to be close to the contact area of the forming net 5 and the paper guide roller 1, keeping the distance between the air nozzle and the forming net at 52cm, rotationally adjusting the push rod 80 to correspond to the position of paper edge separation, and adjusting the extending distance of the push rod 80 to correspond to the position of paper edge separation.
S2: the air jets on the first 84 and second 85 air ports are oriented such that the direction of the two air jets is vertically fixed, with one air jet being directed in a parallel direction along the direction of the draw of the forming wire 5 and the other air jet being directed vertically toward the forming wire 5.
S3: the air pump 6 is started, high-pressure air keeps stable pressure in the pressure stabilizing tank 7, the air is blown out through the two nozzles, the edge of the trimmed paper is adsorbed on the forming net 5 by the air flow in the parallel direction drawn by the forming net 5, the air flow of the other air nozzle is blown to the felt 4 through the forming net 5, the paper web is adsorbed on the felt 4, the edge of the trimmed paper is completely separated from the paper web, the separated water is discharged outside through the water drain pipe 11 by the water-vapor separator in the pressure stabilizing tank 7, the air pressure generated by the air pump 6 is stabilized by the pressure stabilizing tank 7, the stability of the air flow sprayed by the air nozzles is improved, the paper edge is stably controlled, the water is separated by the water-vapor separator, the water is prevented from being attached to the forming net 5, the dryness of the forming net 5 is reduced, and the working efficiency of a squeezing part is improved.
The invention has the advantages that:
the normal performance of the felt and the paper drawing roller is well controlled, a paper edge control device is arranged beside a contact area of the paper drawing roller and the forming net, respective air nozzles on a first air port and a second air port are adjusted to be vertical to each other, the air nozzles are approximately 2mm away from the forming net, one of the air nozzles sprays air flow towards the lower oblique direction along the transmission direction of the forming net to form air pressure difference, the edge trimming paper edge is adsorbed on the forming net, the other air nozzle is vertical to the forming net and blows towards the felt, paper web is adsorbed on the felt, the complete effective separation of the edge trimming paper edge and the felt is realized, the paper edge is stabilized, and the occurrence of band edge and edge drop of a paper making device is avoided. The atmospheric pressure that surge tank produced the air pump is stabilized, improves the stability of air nozzle blowout air current, carries out stability control to the paper margin, and moisture separator separates moisture, avoids moisture to adhere to the shaping on the net, reduces the quality of shaping net, improves the work efficiency of squeezing the portion.
It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential attributes thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (5)
1. Paper margin controlling means among papermaking equipment, papermaking equipment include paper guide roll, couch roll, deflector roll, coarse cotton cloth and forming wire, wherein the coarse cotton cloth is drawn by paper guide roll and couch roll in step, the forming wire is drawn its characterized in that by couch roll and deflector roll: paper margin controlling means sets up and is close to forming network and paper guide roller contact's region is other to one is in the same direction as blowing out towards forming network direction of pull's air current and another strand of perpendicular forming network's air current, wherein adsorbs the deburring paper margin on the forming network in the same direction as forming network direction of pull's air current, and perpendicular forming network direction air current sees through and blows toward the felt adsorbs the paper web on the felt, paper margin controlling means has air pump, surge tank and air gun, the surge tank passes through the intake pipe with air pump and air gun respectively and the outlet duct links to each other, set up the valve on the outlet duct, the inside rotatable push rod that is equipped with of air gun, push rod one end stretch out outside the air gun tip, and the other end is that the chock plug separates the air gun internal partitioning for communicating first cavity and second cavity, is located set up the first gas port and the second gas port of equidimension on the air gun of chock plug both sides, all be equipped with adjustable angle's air nozzle on first gas port and the second gas port.
2. A paper edge control device in a paper making apparatus as claimed in claim 1, characterized in that: the angle adjusting range formed by the air nozzle and the axis of the air gun is in a sector area of 30-120 degrees.
3. A paper edge control device in a paper making apparatus as claimed in claim 2, characterized in that: the air nozzle is a fan-shaped air nozzle.
4. A paper edge control device in a paper making apparatus according to any one of claims 1 to 3, characterized in that: the pressure stabilizing tank is internally provided with a water-vapor separator, the bottom of the pressure stabilizing tank is connected with a drain pipe, the drain pipe is provided with a valve, and the water-vapor separator is used for separating water vapor from fluid generated by the air pump and discharging the fluid through the drain pipe.
5. Use of a device for controlling a paper edge in a paper machine according to any one of claims 1-4, characterized in that it comprises the following steps:
s1: assembling a paper edge control device, enabling an air gun to be close to a contact area of a forming net and a paper guide roller, keeping the distance between an air nozzle and the forming net to be 2cm, and rotatably adjusting a push rod to correspond to a position where paper edges are separated;
s2: adjusting the directions of the air nozzles on the first air port and the second air port to ensure that the directions of the two air nozzles are vertically fixed, wherein one air nozzle is drawn along the forming net in a parallel direction, and the other air nozzle is vertically towards the forming net;
s3: and starting an air pump, keeping the high-pressure air in a pressure stabilizing tank at a stable pressure, blowing the air out through two nozzles, drawing airflow in the parallel direction along a forming net to adsorb the edge of the edge paper on the forming net, blowing the airflow of the other air nozzle to the felt through the forming net to adsorb the paper web on the felt so as to completely separate the edge paper from the paper web, and discharging the separated water outside through a water and steam separator in the pressure stabilizing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573874.6A CN113201959B (en) | 2021-05-25 | 2021-05-25 | Paper edge control device in papermaking equipment and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573874.6A CN113201959B (en) | 2021-05-25 | 2021-05-25 | Paper edge control device in papermaking equipment and use method thereof |
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| Publication Number | Publication Date |
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| CN113201959A CN113201959A (en) | 2021-08-03 |
| CN113201959B true CN113201959B (en) | 2022-11-15 |
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| CN113201959A (en) | 2021-08-03 |
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