阅读说明：本技术 一种圆网造纸机 (Cylinder paper machine ) 是由 蒋少波 李永锋 常小斌 莫玉英 李健灿 李健雄 于 2021-07-13 设计创作，主要内容包括：本发明适用于纸张抄造领域,公开了圆网造纸机,包括循环运作的毛毯和至少两个抄纸单元,抄纸单元包括配置有纸浆的浆槽以及安装在浆槽内的圆网,圆网与毛毯贴合设置,且圆网循环运作,用于将浆槽内的纸浆吸附到毛毯,至少两个抄纸单元沿所述毛毯的行进路径依次设置以在毛毯上形成复合叠加的纸张,该圆网造纸机能够叠加两层或两层以上不同工艺性能的芳纶纸,并且能够将芳纶纸每层的单独工艺性能和复合叠加结构下的综合性能优势集中发挥出来,从而能够满足更多特殊领域的高性能要求。(The invention is suitable for the field of paper making, and discloses a cylinder paper machine, which comprises a blanket and at least two paper making units, wherein the blanket operates in a circulating way, the paper making units comprise a pulp tank configured with paper pulp and a cylinder arranged in the pulp tank, the cylinder and the blanket are arranged in a joint way, the cylinder operates in a circulating way and is used for adsorbing the paper pulp in the pulp tank to the blanket, the at least two paper making units are sequentially arranged along the advancing path of the blanket to form composite superposed paper on the blanket, the cylinder paper machine can superpose two or more layers of aramid fiber paper with different process properties, and can intensively exert the single process property of each layer of the aramid fiber paper and the comprehensive performance advantage under a composite superposed structure, thereby meeting the high performance requirements of more special fields.)

1. The utility model provides a cylinder mould paper machine, its characterized in that, is including the woollen blanket and two at least papermaking units of circulation operation, papermaking unit is including the dressing trough that disposes paper pulp and install cylinder in the dressing trough, the cylinder with the woollen blanket laminating sets up, just cylinder circulation operation, be used for with paper pulp in the dressing trough adsorbs the woollen blanket, two at least papermaking unit follows the route of advancing of woollen blanket sets gradually in order to form compound superimposed paper on the woollen blanket.

2. The cylinder mould machine according to claim 1, characterized in that the vat of different said machine units are provided with pulps of different morphology and different processes.

3. The cylinder machine according to claim 2, wherein the pulp placed in the stock chest is any one of 1313 m-aramid chopped strand pulp, 1313 m-aramid fibrid pulp, 1313 m-aramid chopped strand and fibrid mixture pulp, 1414 p-aramid chopped strand pulp, 1414 p-aramid fibrid pulp, 1414 p-aramid chopped strand and fibrid mixture pulp.

4. The cylinder mould paper machine according to claim 1, characterized in that said papermaking unit further comprises a press roll press-fitted to said cylinder mould, said felt being disposed between said cylinder mould and said press roll.

5. The cylinder mould machine according to claim 4, characterized in that said press rolls are stainless steel covered roll rolls.

6. The cylinder mould machine according to claim 1, characterized in that said papermaking unit further comprises a headbox, a stock pipe and a headbox, said headbox being connected to said headbox through said stock pipe, said headbox being connected to said stock tank.

7. The cylinder mould machine according to claim 6, characterized in that said headbox, said delivery pipe and said vat are all made of stainless steel material.

8. The cylinder mould machine according to claim 1, characterized in that said cylinder mould machine further comprises an overflow launder, and said papermaking unit further comprises an overflow pipe, one end of said overflow pipe being connected to said slurry tank and the other end being connected to said overflow launder.

9. The cylinder mould paper machine according to claim 1, characterized in that said cylinder mould is a polyester mould, the mesh number of said cylinder mould being 40-200 mesh.

10. The cylinder machine according to claim 1, characterized in that there are three paper-making units, named first paper-making unit, second paper-making unit and third paper-making unit, respectively.

Technical Field

The invention relates to the technical field of paper making, in particular to a cylinder mould paper machine.

Background

Cylinder machine refers to a paper machine with cylinder as former. In the production process of a cylinder mould paper machine, a plurality of upper wire units are designed according to the requirement of product thickness. However, the design and production of the existing industry cylinder paper machine can only realize the superposition of the aramid paper of the chopped fiber and the fibrid mixture in a single process, so that the performance of the produced aramid paper has singleness, the chopped fiber, the fibrid or the chopped fiber and fibrid mixture of 1313 m-aramid and 1414 p-aramid can not be brought into play in a centralized way under the independent process performance and the comprehensive performance advantage under the composite superposition structure, and the more excellent performance can not be obtained under the condition of keeping the thickness, the quantification and the production cost unchanged.

Disclosure of Invention

The invention aims to provide a cylinder mould paper machine, which aims to solve the technical problems that the existing cylinder mould paper machine can only realize the superposition of aramid paper of a mixture of chopped fibers and fibrids under a single process, and the performance of the produced aramid paper has singleness.

In order to achieve the purpose, the invention provides the following scheme:

the utility model provides a cylinder mould paper machine, includes the woollen blanket and two at least papermaking units of circulation operation, papermaking unit is including the dressing trough that disposes paper pulp and installing cylinder in the dressing trough, the cylinder with the woollen blanket laminating sets up, just cylinder circulation operation is used for with paper pulp in the dressing trough adsorbs the woollen blanket, two at least papermaking unit is followed the route of advancing of woollen blanket sets gradually in order to form compound superimposed paper on the woollen blanket.

Preferably, the troughs of different papermaking units are configured with pulps of different morphologies and different processes.

Preferably, the pulp placed in the stock chest is any one of 1313 m-aramid chopped fiber pulp, 1313 m-aramid fibrid pulp, 1313 m-aramid chopped fiber and fibrid mixture pulp, 1414 p-aramid chopped fiber pulp, 1414 p-aramid fibrid pulp, 1414 p-aramid chopped fiber and fibrid mixture pulp.

Preferably, the papermaking unit further comprises a press roll pressed with the cylinder mould, and the felt is arranged between the cylinder mould and the press roll.

Preferably, the press roller is a stainless steel covered rubber roller.

Preferably, the papermaking unit further comprises a pulp stabilizing box, a pulp conveying pipe and a pulp flowing box, wherein the pulp stabilizing box is connected with the pulp flowing box through the pulp conveying pipe, and the pulp flowing box is connected with the pulp groove.

Preferably, the stock stabilizing box, the head box, the stock conveying pipe and the stock trough are all made of stainless steel materials.

Preferably, the cylinder mould paper machine further comprises an overflow tank, the papermaking unit further comprises an overflow pipe, one end of the overflow pipe is connected with the pulp tank, and the other end of the overflow pipe is connected with the overflow tank.

Preferably, the cylinder mould is a polyester mould, and the mesh number of the cylinder mould is 40-200 meshes.

Preferably, the paper making units are provided with three paper making units which are named as a first paper making unit, a second paper making unit and a third paper making unit respectively.

The cylinder mould paper machine provided by the invention has the following advantages:

firstly, single-layer aramid paper with different properties is obtained by matching paper pulps with different forms and different processes in different papermaking units, and then the single-layer aramid paper with different properties is superposed, so that the properties of the single-layer aramid paper are more optimized, and the single-layer aramid paper is suitable for high-performance requirements in more special fields. For example, the paper pulp with a specific shape and a specific process is matched to enable the composite superposed aramid paper to obtain ultra-high dielectric resistance so that the composite superposed aramid paper is suitable for the insulation field, or the thermal expansion coefficient of the aramid paper formed by composite superposition reaches the international advanced level so that the aramid paper is suitable for the field of precise circuit boards, and the problem that the honeycomb has adhesive but does not penetrate the adhesive can be solved by preparing the composite superposed aramid paper through the rotary screen paper making machine.

Secondly, the cylinder paper machine of the invention can further improve the uniformity and smoothness of the paper surface of the composite superimposed aramid paper prepared by at least two paper making units.

Thirdly, the cylinder mould paper machine of the invention is easy to control, simple to operate, convenient and practical.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a cylinder mould paper making machine according to an embodiment of the present invention.

The reference numbers illustrate:

10. a blanket; 20. a papermaking unit; 21. a slurry tank; 22. a cylinder mould; 23. a compression roller; 24. a pulp stabilizing box; 25. a pulp conveying pipe; 26. a head box; 27. an overflow pipe; 30. an overflow trough; 40. and a guide roller.

Detailed Description

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 the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, which is a cylinder mould paper machine of an embodiment of the present invention, for making composite laminated paper, especially composite laminated aramid paper. The cylinder mould paper machine can be used for superposing two or more layers of aramid paper with different process properties, and can intensively exert the advantages of the independent process property of each layer of the aramid paper and the comprehensive property under a composite superposition structure, so that the high-performance requirement in more special fields can be met.

Referring to fig. 1, a cylinder paper machine according to an embodiment of the present invention includes a cyclically operated felt 10 and at least two paper making units 20, where the paper making unit 20 includes a vat 21 configured with paper pulp and a cylinder installed in the vat, the cylinder is attached to the felt, and the cylinder is cyclically operated to adsorb the paper pulp in the vat to the felt, the paper pulp is adsorbed on the surface of the cylinder 22 after water is filtered by the cylinder 22, the cylinder 22 rotates to adsorb the paper pulp to the felt 10, and one paper making unit 20 can form a layer of paper on the felt 10, and under the joint operation of the cyclically operated felt 10 and the at least two paper making units 20, a composite stacked paper can be formed.

It can be understood that paper pulps with different forms and different processes are arranged in the pulp tanks 21 of different papermaking units 20, so that single-layer aramid papers with different properties are obtained, and then the single-layer aramid papers with different properties are superposed, so that more excellent properties can be obtained. For example, the pulp placed in the stock chest 21 may be any of 1313-meta-aramid chopped strand pulp, 1313-meta-aramid fibrid pulp, 1313-meta-aramid chopped strand and fibrid mixture pulp, 1414-para-aramid chopped strand pulp, 1414-para-aramid fibrid pulp, 1414-para-aramid chopped strand and fibrid mixture pulp, and of course, pulp of other forms and processes may be selected in addition to the pulp described above as long as the corresponding performance can be achieved.

In the embodiment of the present invention, three papermaking units 20 are provided, which are respectively named as a first papermaking unit 20, a second papermaking unit 20, and a third papermaking unit 20, and aramid paper having a sandwich structure can be formed by the common operation of the felt 10 and the three papermaking units 20. Specifically, 1313 m-aramid chopped fiber pulp may be disposed in the first paper making unit 20, 1313 m-aramid fibrid pulp may be disposed in the second paper making unit 20, and 1414 p-aramid chopped fiber pulp may be disposed in the third paper making unit 20, so as to achieve the purpose of respectively realizing three specific performance indexes on a single-layer aramid paper, and then the three single-layer aramid papers are stacked in a sandwich structure form, so that the performance of the single-layer aramid paper is more optimized.

It is understood that three papermaking units 20 are provided for illustrative purposes only, the specific number of the papermaking units 20 can be set according to actual requirements, and the paper pulp configured for each papermaking unit 20 can also be set according to actual requirements.

The cylinder mould paper machine of the embodiment of the invention has the following advantages:

firstly, single-layer aramid paper with different performances is obtained by matching paper pulps with different forms and different processes in different papermaking units 20, and then the single-layer aramid paper with different performances is superposed, so that the performances of the single-layer aramid paper are more optimized, and the single-layer aramid paper is suitable for high performance requirements in more special fields. For example, the paper pulp with a specific shape and a specific process is matched to enable the composite superposed aramid paper to obtain ultra-high dielectric resistance so that the composite superposed aramid paper is suitable for the insulation field, or the thermal expansion coefficient of the aramid paper formed by composite superposition reaches the international advanced level so that the aramid paper is suitable for the field of precise circuit boards, and the problem that the honeycomb has adhesive but does not penetrate the adhesive can be solved by preparing the composite superposed aramid paper through the rotary screen paper machine provided by the embodiment of the invention.

Secondly, the cylinder paper machine of the invention can further improve the uniformity and smoothness of the paper surface of the composite superimposed aramid paper prepared by at least two paper making units.

Thirdly, the cylinder mould paper machine of the embodiment of the invention is easy to control, simple to operate, convenient and practical.

Referring to fig. 1, the papermaking unit 20 further includes a press roll 23 pressed with the cylinder 22, the felt 10 is disposed between the cylinder 22 and the press roll 23, after the paper pulp is filtered by the cylinder 22, the paper pulp is adsorbed on the surface of the cylinder 22, the cylinder 22 rotates and is pressed with the press roll 23, so that the paper pulp is adsorbed on the felt 10, and by disposing the press roll 23 on the papermaking unit 20, the content of moisture in the felt 10 and the aramid paper can be effectively reduced, and the adsorption effect of the felt 10 on the aramid paper is improved.

Furthermore, the press roller 23 is a stainless steel rubber covered roller, the pressing power is compressed air, and the practicability is high.

It is understood that the pressure of the press roll 23 can be adjusted to adjust the moisture content of the felt 10 and the aramid paper.

It should be noted that, when the press roll 23 is pressed against the cylinder 22, the press roll 23 may rotate or may not move, and when the press roll 23 rotates, the direction may be the same as or different from the rotation direction of the cylinder 22, for example, the blanket 10 may rotate counterclockwise, the cylinder 22 may rotate clockwise, and the press roll 23 may also rotate clockwise, although the foregoing is only an exemplary description, whether the press roll 23 rotates, and the rotation direction of the press roll 23, the rotation direction of the cylinder 22, and the traveling direction of the blanket 10 may all be set according to actual requirements, and are not specifically limited herein.

Referring to fig. 1, the papermaking unit 20 further includes a pulp stabilizing box 24, a pulp delivery pipe 25 and a pulp flow box 26, the pulp stabilizing box 24 is connected to the pulp flow box 26 through the pulp delivery pipe 25, the pulp flow box 26 is connected to the pulp tank 21 to deliver pulp to the pulp tank 21, the pulp delivery, sizing and pulp storage are realized by arranging the pulp stabilizing box 24, the pulp flow box 26 and the pulp tank 21 to cooperate with each other, and continuous pulp supply is provided for the cylinder 22, thereby realizing continuous operation of the cylinder papermaking machine.

Further, the pulp stabilizing box 24 is a stainless steel box body, has non-embroidering property, and does not affect the quality of the pulp even if used for a long time. The slurry stabilizing box is made of 304 stainless steel, and the 304 stainless steel has good processing performance and high toughness.

Similarly, the head box 26, the slurry pipe 25 and the slurry tank 21 are made of stainless steel.

Referring to fig. 1, the cylinder machine further includes an overflow tank 30, and the papermaking unit 20 further includes an overflow pipe 27, wherein one end of the overflow pipe 27 is connected to the stock tank 21, and the other end thereof is connected to the overflow tank 30. The rest diluted paper pulp is collected and recycled through the pulp tank 21 and the overflow tank 30, so that the aims of energy conservation and environmental protection are fulfilled. In addition, in the embodiment of the present invention, it is not necessary to separately recover the remaining pulp of different papermaking units 20, and therefore, it is not necessary to separately provide an overflow chute 30 for each papermaking unit 20, and only one overflow chute 30 is provided to communicate with each papermaking unit 20, so that the remaining pulp of each papermaking unit 20 can be uniformly recovered. Of course, if it is desired to separately recover the remaining pulp from different papermaking units 20, each papermaking unit 20 may be separately provided with an overflow chute 30.

Referring to fig. 1, the cylinder mould 22 is a polyester net with 40-200 meshes, which has the characteristics of high strength, small deformation, good corrosion resistance, good wear resistance and long service life.

Referring to fig. 1, the blanket 10 is made of wool blended fabric and has excellent wear resistance and elasticity.

Further, the cylinder mould paper machine also comprises a driving mechanism (not shown) and a guide roller 40 for driving the felt 10 to circularly operate, the felt 10 is arranged on the guide roller 40 in a surrounding manner, the direction is changed through the guide roller 40, the felt 10 passes through the paper making unit 20 and then passes through the guide roller 40, composite and overlapped aramid paper is formed on the felt 10, and the composite and overlapped aramid paper on the felt 10 is separated from the felt 10 through subsequent processes.

It is understood that the driving mechanism may be powered, pneumatically driven or hydraulically driven, as long as the driving requirements are met.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.