CN104195866B - A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner - Google Patents

A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner Download PDF

Info

Publication number
CN104195866B
CN104195866B CN 201410424985 CN201410424985A CN104195866B CN 104195866 B CN104195866 B CN 104195866B CN 201410424985 CN201410424985 CN 201410424985 CN 201410424985 A CN201410424985 A CN 201410424985A CN 104195866 B CN104195866 B CN 104195866B
Authority
CN
Grant status
Grant
Patent type
Prior art keywords
steam
chamber
manifold
box
control valve
Prior art date
Application number
CN 201410424985
Other languages
Chinese (zh)
Other versions
CN104195866A (en )
Inventor
刘建安
龙君
樊慧明
Original Assignee
华南理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Abstract

本发明公开了一种二次调节蒸汽箱及调节纸张的横幅水分含量的方法,包括蒸汽箱、蒸汽总管和抽气总管,蒸汽总管的入口端设有总管控制阀;蒸汽箱的外部设有预热室;预热室通过预热支管连通在蒸汽总管的入口端与总管控制阀之间的管路上;蒸汽箱沿纸张的前进方向依次为:底部设有多孔板或缝型板的抽气区、底部设有多孔板或者缝型板的喷汽区和底部开口的滞留区;利用纸张夹带的空气进行初步调节,解决纸张夹带空气对蒸汽传热效果的影响及减少了二次调节量,再通过蒸汽箱各蒸汽室的蒸汽流量进行二次调节,达到调节纸张横幅水份含量的目的。 The present invention discloses a method for a secondary moisture content banner adjusting and regulation of the steam box of the paper, including the inlet end of the steam box, and steam exhaust manifold header, steam pipe is provided with a control valve manifold; outside the steam box is provided with pre- hot chamber; preheating chamber through the preheat leg at the steam manifold communicating with the inlet end of the control line between the manifold valve; steam box in the traveling direction of the paper were: a perforated plate provided with slits or the bottom plate of the extraction zone , slit plate provided with a porous plate or a bottom discharge opening and a bottom region of the vapor retention area; sheet using air entrained preliminary adjustment, to address the impact of air entrained steam heat transfer sheet and reduce the secondary effects of the adjustment amount, and then adjusting the steam flow through the secondary steam chamber of each steam box, the purpose of adjusting the moisture content of the banner sheet. 由于蒸汽流量的二次调节量少,大大减少了各蒸汽室的流量差,避免蒸汽在各蒸汽室之间的流动,确保了调节效果。 Since the secondary steam flow adjusting less, greatly reducing the difference between the flow rate of each steam chamber to avoid the flow of steam between the steam chamber, to ensure that the conditioning effect.

Description

一种二次调节蒸汽箱及调节纸张的横幅水份含量的方法 A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner

技术领域 FIELD

[0001]本发明涉及制浆造纸技术领域,尤其涉及一种二次调节蒸汽箱及调节纸张的横幅水份含量的方法。 [0001] The present invention relates to the technical field of pulp and paper, in particular, to a moisture content of the banner to a secondary regulation of the steam box and the paper adjustment method.

背景技术 Background technique

[0002]蒸汽箱沿纸张横幅喷射蒸汽,蒸汽在纸张中冷凝,释放潜热,从而提高湿纸幅的温度、降低湿纸幅中水的表面张力和粘度,能改善网部、压榨部的脱水能力和烘缸部的干燥能力,同时能调节纸张横幅水份含量的均匀性,能改善压光后纸张的印刷性能和涂布纸的涂布性能,及印刷性能的横幅均匀性,因此蒸汽箱广泛地应用于各种纸机,特别是对产品质量要求比较高的特种纸机上。 [0002] The steam box in the paper banners injection of steam, the steam condensed in the paper, the release of latent heat, thereby increasing the temperature of the wet paper web to reduce the surface tension and viscosity of the wet paper web in water, can improve the network portion, the dewatering capacity of the press section and drying capacity of the dryer section, can be adjusted while the uniformity of the moisture content of the banner paper, can be calendered to improve the coating properties and printability of coated paper after the paper, and uniformity of the banner printing performance, it is widely steam box It applied to various paper machine, especially for high quality requirements on the specialty paper machine.

[0003]传统的蒸汽箱调节纸张横幅水份含量的功能是通过将蒸汽箱沿横幅分为多个蒸汽室,单独调节进入每个蒸汽室的蒸汽流量来实现的。 [0003] The conventional steam box regulation banner moisture content of the paper by a steam box is divided into a plurality in banners steam chamber, each individual adjustment of the flow of steam into the steam chamber to achieve. 这种方法的缺点是当一个蒸汽室流量比较低时,周围流量高的蒸汽室的蒸汽就会跑过补充,特别是当蒸汽箱安装在网部与真空箱配合使用时,这种方法的缺点就非常明显,当某一个室的蒸汽流量下降,低于真空抽吸的能力时,真空箱将从周围的蒸汽流量大的蒸汽室中抽取蒸汽,即使流量小的蒸汽室位于两边,由于边板比中间的隔板厚,甚至还有其它隔离装置,因此抽取空气补充的可能性比较小,这样真空箱就使各处的蒸汽流量向均匀方向发展,从而影响了蒸汽箱的调节效果。 A disadvantage of this method is that when a relatively low flow rate of the steam chamber, high flow rate of steam around the steam chamber will ran supplement, particularly when a steam box at the wire section and with the use of a vacuum box, the disadvantage of this method to install very obvious when one chamber of a steam flow decreases, it is less than the suction capacity of the vacuum, from the vacuum box large steam flow around a steam extraction steam chamber, even a small flow of steam chamber on either side, since the edge of plate thicker than the intermediate separator possibility, and even other isolation means, thus supplement extracted air is relatively small, so that the vacuum tank to the steam flow uniformly throughout the development direction, thus affecting the effect of adjusting the steam box.

[0004]美国专利US3945881为了解决上述问题,通过将真空箱也分为与蒸汽箱同样数量的真空室,且单独进行控制,从而当某一室蒸汽流量降低时,相对应的真空室的抽气流也降低,但这种方法的缺点是要采用两套控制系统,同时使真空箱变得更复杂。 [0004] U.S. Patent No. US3945881 To solve the above problem, the vacuum box is also divided by the same amount of steam box the vacuum chamber, and independently controlled, such that when a reduced steam flow chamber, the vacuum chamber of the corresponding extraction flow also decreases, but the disadvantage of this method is to use two sets of the control system, while the vacuum tank becomes more complicated.

[0005]美国专利US4249992和US4331510提出了另一个解决方法,横幅各室蒸汽流量与压力相同,通过改变横幅各室蒸汽与纸张的接触面积来调节纸张横幅水份含量,对湿度大的部位提供更大的蒸汽作用时间,而湿度小的部位则减少蒸汽与纸张的接触面积,由于各室的蒸汽流量是相同的,因此蒸汽流量不会在各室之间流动,但这种方法需要复杂、独特的内部结构。 [0005] U.S. Patent No. US4249992 and US4331510 proposes another solution, each chamber banners same steam flow and pressure, moisture content of the paper is adjusted by changing the banner banners chambers vapor contact area with the paper, the humidity of the site to provide a more large steam action time, and the humidity of the small portion of the steam to reduce the contact area of ​​the paper, since the steam flow is the same in each chamber, and therefore the steam flow does not flow between the chambers, but this method requires a complex and unique internal structure.

[0006]另一方面,蒸汽中不凝气体的含量是影响蒸汽箱作用效果的重要因素,蒸汽中的不凝气体会大大降低蒸汽在纸张中的冷凝速度,影响蒸汽的传热效果,蒸汽箱安装在纸张的上面,纸张在运行过程中都会带入大量的空气,如果不采取措施,这些空气就会进入蒸汽箱与纸张组成的空间,从而降低蒸汽的传热效率。 [0006] On the other hand, the steam content of non-condensable gas is an important factor affecting the effect of the steam box, non-condensable gas steam experience greatly reduced rate of condensation of steam in the paper, affecting heat transfer in the steam, the steam box mounted on top of the paper, the paper during operation will bring a lot of air, if no measures are taken, these will enter the air space consisting of a steam box and the paper, thereby reducing the heat transfer efficiency of steam.

[0007]传统的设备没有措施阻止空气带入蒸汽箱喷射的蒸汽中,现在有些设备在蒸汽箱前纸张入口喷射大量蒸汽以图阻止由纸张带入的气流,但这种方法蒸汽的喷射量很难控制,如果蒸汽流量过大就会造成蒸汽外溢,浪费蒸汽,影响车间环境,如果流量过小又达不到阻止气流的目的。 [0007] The conventional apparatus is not measures to prevent air into the steam injection the steam box, and now some of the steam box prior to the sheet in the device inlet to inject a large amount of steam is prevented by the sheet of FIG flow into, but this method of steam injection amount is difficult to control, if the steam flow will cause excessive steam spills, waste steam, the impact workshop environment, if the flow is too small and not the purpose to stop the air flow.

发明内容 SUMMARY

[0008]本发明的目的在于克服上述现有技术的缺点和不足,提供一种二次调节蒸汽箱及调节纸张的横幅水份含量的方法。 [0008] The object of the present invention is to overcome the above disadvantages and drawbacks of the prior art, there is provided a method of moisture content banner secondary regulation of the steam box and the paper regulation.

[0009]本发明通过下述技术方案实现: [0009] The present invention is achieved by the following technical scheme:

[0010] —种二次调节的蒸汽箱,包括蒸汽箱、蒸汽总管I和抽气总管6,所述蒸汽总管I的入口端设有总管控制阀2;所述蒸汽箱的外部设有预热室12;所述预热室12通过一个带有预热控制阀10的预热支管9连通在蒸汽总管I的入口端与总管控制阀2之间的管路上;所述预热室12连接有蒸汽回流管11,蒸汽回流管11上设有控制阀; [0010] - adjusting the kind of the secondary steam box comprising a steam box, and steam header I exhaust manifold 6, the inlet end of the steam header manifold I is provided with a control valve 2; provided outside of the steam box preheating chamber 12; the preheating chamber 12 through a warm-up control with a preheat leg 9 of the valve 10 communicates at an inlet end of the steam header I and header line between the control valve 2; the preheating chamber 12 is connected to vapor return tube 11, control valve 11 is provided with the vapor return tube;

[0011]所述蒸汽箱沿纸张的前进方向依次包括:底部设有多孔板14或者缝型板的抽气区44、底部设有多孔板14或者缝型板的喷汽区33和底部开口的滞留区22; [0011] The advancing direction of the sheet sequentially along the steam box comprising: a bottom plate provided with slits 14 or a perforated plate extraction zone 44, 14 has a slit plate or perforated plate and the bottom of the steam spraying zone 33 at the bottom of the opening retention area 22;

[0012]所述抽气区44内具有多个独立的抽气室44-1;各个抽气室44-1分别通过相应的抽气支管7连通抽气总管6,每个抽气支管7上均设有控制阀; Inner [0012] The extraction zone 44 having a plurality of independent suction chamber 44-1; 44-1, respectively on the respective suction chamber 7 through the respective exhaust manifold communicating the exhaust manifold 6, each exhaust manifold 7 It is provided with a control valve;

[0013]所述的抽气区44纸张入口方向前端板及对应的预热室12底部与纸张的距离高于喷汽区33滞留区22底部与纸张的距离,高度差L = 0.5〜2mm。 12 from the bottom of the paper sheet inlet direction of the extraction zone 44 the front end plate [0013] and the corresponding distance above the bottom of the preheating chamber 22 and the retention area 33 of paper steam spraying zone, the height difference L = 0.5~2mm.

[0014]所述喷汽区33内具有多个独立的蒸汽室33-1;各个蒸汽室33-1分别通过相应的蒸汽支管3连通蒸汽总管I,每个蒸汽支管3上均设有控制阀; [0014] The steam spraying zone having a plurality of separate steam chamber 33 33-1; 33-1, respectively, each of the steam chamber 3 communicates through respective steam header I steam manifold, each vapor branch pipe 3 has a control valve ;

[0015] 所述滞留区22内具有多个独立的滞留室22-1。 [0015] The retaining zone having a plurality of independent retention chamber 22 22-1.

[0016]所述的抽气区44的横向宽度与喷汽区33相等,抽气区44的高度为喷汽区33高度的1/3〜1/2。 The [0016] suction region and the lateral width of the steam injection region 44 is equal to 33, 44 to the height of extraction zone 33 the height of the steam spraying zone 1 / 3~1 / 2.

[0017]所述的抽气区44的多个抽气室44-1沿纸张进入方向的横向均匀分布;所述抽气室44-1与喷汽室33-1—一对应,且宽度相等。 [0017] The extraction zone of the plurality of pumping chambers 44-1 along the sheet 44 into the transverse direction, a uniform distribution; the pumping chamber and the steam spraying chamber 33-1- 44-1 corresponding to a, and a width equal to the .

[0018]所述抽气支管7安装在抽气区44的顶部,抽气区44内的空气向上进入抽气支管7和抽气总管6内。 [0018] The exhaust manifold 7 is mounted on the top of the extraction zone 44, the air in the extraction zone 44 upwardly into the exhaust manifold and the exhaust manifold 7 6.

[0019]所述的滞留区22横向宽度与喷汽区33相等,高度为喷汽区33的1/3〜1/2。 [0019] The lateral width of the retention area 22 and the steam jet region 33 is equal to the height of the steam spraying zone 33 1 / 3~1 / 2.

[0020]所述的滞留区22的多个滞留室22-1沿纸张进入方向的横向均匀分布;所述抽滞留22-1与喷汽室33-1—一对应,且宽度相等。 [0020] The plurality of retention area 22 of the retention chamber 22-1 uniformly distributed transversely of the sheet entering direction; the evacuated retention chamber 33-1- 22-1 with a steam jet corresponding to and equal in width.

[0021]所述抽气总管6与抽风机相连。 The [0021] exhaust manifold 6 is connected to the exhaust fan.

[0022]采用上述二次调节的蒸汽箱,用于调节纸张的横幅水份含量的方法,包括如下步骤: [0022] The adjustment of the secondary steam box, moisture content adjustment method of banner sheet, comprising the steps of:

[0023]首先关闭抽气总管6上的抽气支管7和总管控制阀2,打开预热支管9上的预热控制阀10和蒸汽回流管11上的控制阀,对整个蒸汽箱进行预热,防止蒸汽进入蒸汽箱中和抽风机抽气时产生冷凝水;当蒸汽箱(整个箱体)的温度达到蒸汽的温度时,预热完成,蒸汽箱开始工作,控制预热支管9和蒸汽回流管11上的蒸汽流量; [0023] First, shutting off the exhaust manifold on the exhaust manifold 67 and the manifold valve 2, opening on the warm-up control valve 910 and the preheat leg control valve on the vapor return tube 11, the entire preheat the steam box , prevent steam entering the steam box and the condensed water is generated when the exhaust blower; when the temperature of the steam box (the entire casing) reaches the temperature of the steam, preheating is finished, the steam box to work, controls the preheat leg 9 and the vapor return the steam flow tube 11;

[0024]打开抽气总管6上的控制阀开始抽气,同时打开总管控制阀2,蒸汽通过蒸汽支管3进入到喷汽区33的各个独立的蒸汽室33-1内; [0024] bleed manifold opening the control valve 6 starts pumping, while opening the control valve manifold 2 through the steam manifold into the steam spraying zone of each separate steam chamber 33 33-13;

[0025]调节抽气支管7上的控制阀,控制对应抽气支管7的抽气量,以获得调节从抽气室44-1进入蒸汽室33-1内的空气量,初步获得调节对应的纸张横向部位蒸汽的冷凝速度和传热效果,完成纸张的横幅水份含量分布初步调节; [0025] The exhaust manifold adjusting the control valve 7, the control amount corresponding to the exhaust manifold 7 exhaust to obtain adjust the amount of air from the suction chamber 33-1 44-1 into the steam chamber, the initial adjustment corresponding sheet obtained lateral portion and the steam condensation heat transfer rate, to complete the moisture content of the paper banner initial adjustment profile;

[0026]调节蒸汽支管3上的控制阀,控制与其对应蒸汽支管的蒸汽流量,以获得各蒸汽室33-1的蒸汽流量,从而进一步调节对应部位纸张的水份含量。 [0026] The steam manifold adjustment control valve 3 controls the flow of steam corresponding to a steam manifold, each steam chamber to obtain a steam flow 33-1, thereby further regulating the moisture content of the corresponding part of the paper.

[0027]本发明相对于现有技术,具有如下的优点及效果: [0027] The present invention relative to the prior art, has the following advantages and effects:

[0028]首先利用纸张夹带的空气进行初步调节,这样一方面解决了纸张夹带空气对蒸汽传热效果的影响,另一方面大大减少了二次调节量,二次调节只需进行微调。 [0028] Firstly, the paper entrained air preliminary adjusted so that the impact of the settlement of the paper trapped air to steam heat transfer effects, on the other hand greatly reduces the amount of secondary regulation, secondary regulation just fine-tuning. 然后通过各蒸汽室的蒸汽流量进行二次调节,达到调节纸张横幅水份含量分布的目的。 Then adjust steam flow through each of the secondary steam chamber, the purpose of adjusting the water content distribution in the banner sheet. 由于蒸汽流量的二次调节量少,从而大大减少了各蒸汽室的流量差,避免蒸汽在各蒸汽室之间的流动,确保了调节效果。 Since the secondary regulation of steam flow is small, thus greatly reducing the flow rate of each steam chamber, which avoid steam flow between the steam chamber, to ensure that the conditioning effect.

[0029]滞留区位于喷汽区的后面,每个滞留室与蒸汽室一一对应,在喷汽区没有完成传热的蒸汽在滞留室中与纸张继续接触传热,增加了蒸汽的利用率,同时减少了蒸汽箱中蒸汽的外溢。 [0029] retention area located behind the steam injection zone, each of the retentate chamber and the vapor chamber correspondence, there is no heat transfer in the steam jet to complete the steam zone in the heat retention chamber into contact with the paper to continue to increase the utilization of steam while reducing the steam in the steam box spillover.

[0030]喷汽区33底部设有多孔板14或者缝型板,使蒸汽更加均匀地喷到纸页上。 [0030] The discharge region 33 is provided with a porous bottom of the stripping plate 14 or the slit plate, the steam more uniformly sprayed onto the sheet.

[0031]滞留区由隔板沿横向均匀分为多个滞留室,每个滞留室与喷汽区的蒸汽室一一对应,沿纸机横向具有相同的宽度,从而对应的蒸汽室没有充分传热的蒸汽在滞留室中与纸张继续接触传热。 [0031] retention area in the lateral direction by a partition into a plurality of uniform retention chamber, the retention chamber and a steam chamber of each vapor discharge region correspond, along the cross machine direction have the same width, so as to correspond to the steam chamber is not sufficiently pass hot steam heat retention chamber into contact with the paper to continue.

[0032]蒸汽支管安装在蒸汽总管上总管控制阀2和冷凝水管5之间,沿纸机的横向均匀分布,与蒸汽室相对应,每个蒸汽室与一根蒸汽支管相通,蒸汽支管是从侧面进入蒸汽室中的,也就是说进汽的方向与蒸汽喷向纸页的方向平行,这样一方面避免了蒸汽冲击纸页产生的不利影响,另一方面防止了蒸汽中可能带有的冷凝水喷到纸页上。 [0032] The steam manifold installed on the steam header between the header control valve 2 and the condensate pipe 5, uniformly distributed in the transverse direction of the machine, corresponding to the steam chamber, each steam chamber in communication with a steam branch pipe, the steam from the manifold side into the steam chamber, that is to say the direction of inlet steam of the steam sprayed into a direction parallel to the sheet, so that on the one hand to avoid the adverse effects of the impact of the steam produced sheet, on the other hand prevents condensation of steam which may be present water is sprayed onto the sheet.

[0033]喷汽区由隔板沿横向均匀分为多个蒸汽室,每个蒸汽室与抽气区的抽气室一一对应,沿纸机横向具有相同的宽度,可以通过对应的抽气室来的空气量多少影响相应蒸汽室内蒸汽的传热效果,从而可对纸张横向的水份含量进行调节。 [0033] The steam spraying zone by a partition into a plurality of steam chambers uniformly in the lateral direction, each of the steam chamber and the pumping chamber of the extraction zone correspond, along the cross machine direction have the same width, through the corresponding suction the amount of air to the chamber influence how the respective heat transfer vapor steam chamber, so that the moisture content can be adjusted transverse to the paper.

附图说明 BRIEF DESCRIPTION

[0034]图1为本发明整体结构示意图。 [0034] Fig 1 a schematic view of the overall structure of the present invention.

[0035]图2为图1中AA剖面结构示意图。 [0035] FIG. 2 is a schematic cross-sectional view AA of FIG. 1 configuration.

[0036]图3为图2中BB剖面结构示意图。 [0036] FIG. 3 is a schematic cross-sectional structural view BB 2.

[0037]图4为图2中CC剖面结构示意图。 [0037] FIG. 4 is a schematic cross-sectional structural view of the CC 2.

[0038]图5为图2中DD剖面结构示意图。 [0038] FIG. 5 is a schematic cross-sectional structure in FIG 2 DD.

[0039]图6为多孔板14结构示意图。 [0039] FIG. 6 is a schematic structural diagram of a porous plate 14.

具体实施方式 Detailed ways

[0040]下面结合具体实施例对本发明作进一步具体详细描述。 [0040] The following specific examples in conjunction with the present invention will be further specifically described in detail.

[0041 ] 实施例 [0041] Example

[0042]如图1至图6所示。 As shown in [0042] FIGS. 1 to 6. 本发明二次调节的蒸汽箱,包括蒸汽箱、蒸汽总管I和抽气总管6,所述蒸汽总管I的入口端设有总管控制阀2; The present invention secondary regulator steam box comprising a steam box, and steam header I exhaust manifold 6, the inlet end of the steam header I 2 is provided with a control valve manifold;

[0043]所述蒸汽箱的外部设有预热室12;所述预热室12通过一个带有预热控制阀(10)的预热支管9连通在蒸汽总管I的入口端与总管控制阀2之间的管路上;所述预热室12连接有蒸汽回流管11,蒸汽回流管11上设有控制阀; [0043] The steam box is provided outside the preheating chamber 12; the preheating chamber 12 through a steam header 9 communicates with the inlet end I of the control valve manifold warm-up control valve (10) with a preheat leg line between the two; the preheating chamber 12 is connected with a vapor return tube 11, control valve 11 is provided with the vapor return tube;

[0044]所述蒸汽箱沿纸张的前进方向依次包括:底部设有多孔板14或者缝型板的抽气区44、底部设有多孔板14或者缝型板的喷汽区33和底部开口的滞留区22;所述抽气区44内具有多个独立的抽气室44-1;各个抽气室44-1分别通过相应的抽气支管7连通抽气总管6,每个抽气支管7上均设有控制阀; [0044] The advancing direction of the sheet sequentially along the steam box comprising: a bottom plate provided with slits 14 or a perforated plate extraction zone 44, 14 has a slit plate or perforated plate and the bottom of the steam spraying zone 33 at the bottom of the opening retention area 22; said extraction zone having a plurality of independent suction chambers 44 44-1; 44-1 communicate with each pumping chamber 7 through the exhaust manifold 6 are respective exhaust manifold, each exhaust manifold 7 on average a control valve;

[0045]所述喷汽区33内具有多个独立的蒸汽室33-1;各个蒸汽室33-1分别通过相应的蒸汽支管3连通蒸汽总管I,每个蒸汽支管3上均设有控制阀; [0045] The steam spraying zone having a plurality of separate steam chamber 33 33-1; 33-1, respectively, each of the steam chamber 3 communicates through respective steam header I steam manifold, each vapor branch pipe 3 has a control valve ;

[0046] 所述滞留区22内具有多个独立的滞留室22-1。 [0046] The retaining zone having a plurality of independent retention chamber 22 22-1.

[0047]所述的抽气区44的横向宽度与喷汽区33相等,抽气区44的高度为喷汽区33高度的1/3〜1/2。 The [0047] suction region and the lateral width of the steam injection region 44 is equal to 33, 44 to the height of extraction zone 33 the height of the steam spraying zone 1 / 3~1 / 2.

[0048]所述的抽气区44的多个抽气室44-1沿纸张进入方向的横向均匀分布;所述抽气室44-1与蒸汽室33-1的宽度相等。 Said transverse suction region [0048] a plurality of exhaust chambers 44 along the sheet 44-1 in the incoming direction uniformly distributed; said pumping chamber 44-1 33-1 equal to the width of the steam chamber.

[0049]所述抽气支管7安装在抽气区44的顶部,抽气区44内的空气向上进入抽气支管7和抽气总管6内。 [0049] The exhaust manifold 7 is mounted on the top of the extraction zone 44, the air in the extraction zone 44 upwardly into the exhaust manifold and the exhaust manifold 7 6.

[0050]所述的滞留区22横向宽度与喷汽区33相等,高度为喷汽区33的1/3〜1/2。 [0050] The lateral width of the retention area 22 and the steam jet region 33 is equal to the height of the steam spraying zone 33 1 / 3~1 / 2.

[0051]所述的滞留区22的多个滞留室22-1沿纸张进入方向的横向均匀分布。 [0051] The plurality of retention area 22 of the sheet retention chamber 22-1 in the transverse direction into the uniform distribution.

[0052]所述抽气总管6与抽风机(图中未示出)相连。 The [0052] exhaust manifold 6 is connected to the suction fan (not shown).

[0053] 滞留区22位于喷汽区33的后面,每个滞留室22-1与喷汽区的蒸汽室33-1 — 一对应,且宽度相等。 [0053] retention area 22 located behind the discharge region 33 of the steam, the steam chamber of each retention chamber 22-1 and the steam spraying zone 33-1-- one correspondence, and equal width. 在喷汽区没有完成传热的蒸汽在滞留室中与纸张继续接触传热,增加了蒸汽的利用率,同时减少了蒸汽箱中蒸汽的外溢。 In the steam jet heat transfer area is not completed in the steam heat retention chamber into contact with the paper to continue to increase the utilization of steam, while reducing the steam in the steam box spillover.

[0054]增加了抽气区抽气调节范围,所述抽气区44纸张入口方向前端板及对应的预热室12底部与纸张的距离高于其它区域底部与纸张的距离,高度差L=lmm,这样增加了纸张带入蒸汽箱中的空气量。 [0054] bleed adjustment range increases the extraction zone, the extraction zone from the sheet inlet direction, the front end plate 44 and a corresponding bottom of the preheating chamber 12 from the bottom of the paper is higher than other regions of the sheet, the height difference L = lmm, which increases the amount of air in the paper into the steam box.

[0055]蒸汽回流管11安装在蒸汽箱上与预热支管9相对的另一端,预热蒸汽通过预热支管9从蒸汽箱一端进入预热室12中,然后从另一端通过蒸汽回流管11排出,排出的预热蒸汽和冷凝水经过排水和加热处理后可以再回到预热室12中循环利用。 [0055] The vapor return tube 11 is installed on the steam tank and the preheat leg opposite end 9, 9 preheated steam into the preheating chamber 12 from one end of the steam box through the preheat leg, and then from the other end of the return pipe 11 through the steam discharge, preheating steam and condensate water discharged after the heating treatment can be drained back into the preheating chamber 12 and then recycled.

[0056]采用上二次调节的蒸汽箱,用于调节纸张的横幅水份含量的方法如下: [0056] The steam box on the secondary regulator, a method of adjusting the moisture content of the banner paper used in the following:

[0057]首先关闭抽气总管6上的抽气支管7和总管控制阀2,打开预热支管9上的预热控制阀10和蒸汽回流管11上的控制阀,对整个蒸汽箱进行预热,防止蒸汽进入蒸汽箱中和抽风机抽气时产生冷凝水;当蒸汽箱(整个箱体)的温度达到蒸汽的温度时,预热完成,蒸汽箱开始工作,控制(适当减小)预热支管9和蒸汽回流管11上的蒸汽流量; [0057] First, shutting off the exhaust manifold on the exhaust manifold 67 and the manifold valve 2, opening on the warm-up control valve 910 and the preheat leg control valve on the vapor return tube 11, the entire preheat the steam box , prevent steam entering the steam box and the condensed water is generated when the exhaust blower; when the temperature of the steam box (the entire casing) reaches the temperature of the steam, preheating is finished, the steam box starts operation, the control (an appropriate decrease) preheating steam manifold 9 and the return pipe 11 steam flow;

[0058]打开抽气总管6上的控制阀开始抽气,同时打开总管控制阀2,蒸汽通过蒸汽支管3进入到喷汽区33的各个独立的蒸汽室33-1内; [0058] bleed manifold opening the control valve 6 starts pumping, while opening the control valve manifold 2 through the steam manifold into the steam spraying zone of each separate steam chamber 33 33-13;

[0059]调节抽气支管7上的控制阀,控制对应抽气支管7的抽气量,以获得调节从抽气室44-1进入蒸汽室33-1内的空气量,初步获得调节对应的纸张横向部位蒸汽的冷凝速度和传热效果,完成纸张的横幅水份含量分布初步调节; [0059] The exhaust manifold adjusting the control valve 7, the control amount corresponding to the exhaust manifold 7 exhaust to obtain adjust the amount of air from the suction chamber 33-1 44-1 into the steam chamber, the initial adjustment corresponding sheet obtained lateral portion and the steam condensation heat transfer rate, to complete the moisture content of the paper banner initial adjustment profile;

[0060]调节蒸汽支管3上的控制阀,控制与其对应蒸汽支管的蒸汽流量,以获得各蒸汽室33-1的蒸汽流量,从而进一步调节对应部位纸张的水份含量。 [0060] The steam manifold adjustment control valve 3 controls the flow of steam corresponding to a steam manifold, each steam chamber to obtain a steam flow 33-1, thereby further regulating the moisture content of the corresponding part of the paper. 达到调节纸页横幅水份含量的目的,蒸汽进入到蒸汽室中后通过多孔板14喷到纸页上。 The purpose of adjusting the moisture content of banner sheet, after the steam chamber into steam sprayed onto the sheet 14 through a porous plate.

[0061]如上所述,便可较好地实现本发明。 [0061] As described above, the present invention can be better achieved.

[0062]本发明的实施方式并不受上述实施例的限制,其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化,均应为等效的置换方式,都包含在本发明的保护范围之内。 [0062] Embodiment of the present invention is not limited to the above embodiments, any other changes made under the spirit and principle of the present invention without departing from, modified, substituted, combined, simplified, should be replaced with an equivalent manner, They are included within the scope of the present invention.

Claims (8)

  1. 1.一种二次调节的蒸汽箱,包括蒸汽箱、蒸汽总管(I)和抽气总管(6),所述蒸汽总管(I)的入口端设有总管控制阀(2);其特征在于:所述蒸汽箱的外部设有预热室(12);所述预热室(12)通过一个带有预热控制阀(10)的预热支管(9)连通在蒸汽总管(I)的入口端与总管控制阀(2)之间的管路上;所述预热室(12)连接有蒸汽回流管(11),蒸汽回流管(11)上设有控制阀; 所述蒸汽箱沿纸张的前进方向依次包括:底部设有多孔板(14)或者缝型板的抽气区(44)、底部设有多孔板(14)或者缝型板的喷汽区(33)和底部开口的滞留区(22); 所述抽气区(44)内具有多个独立的抽气室(44-1);各个抽气室(44-1)分别通过相应的抽气支管(7)连通抽气总管(6),每个抽气支管(7)上均设有控制阀; 所述喷汽区(33)内具有多个独立的蒸汽室(33-1);各个蒸汽室(33-1)分别通过相应的蒸汽支管(3)连通蒸汽总管(I),每个蒸汽支管(3)上 A secondary regulation of the steam box comprising a steam box, the steam header (I) and exhaust manifold (6), the steam header (I) is provided with an inlet end of the manifold control valve (2); characterized in that : the external steam box is provided with the preheating chamber (12); said preheating chamber (12) through a valve with a warm-up control (10) of the preheat leg (9) in communication with the steam header (I), the inlet end of the manifold line between the control valve (2); said preheating chamber (12) connected to a steam return pipe (11), a control valve on the steam return pipe (11); a steam box in the paper sequentially advancing direction comprising: a perforated plate provided with (14) or a slit plate extraction zone (44) at the bottom, with steam spraying zone (33) a perforated plate (14) or a slit plate and a bottom opening at the bottom retention region (22); said extraction zone (44) having a plurality of independent suction chamber (44-1); each suction chamber (44-1), respectively, through respective suction manifold (7) communicates exhaust manifold (6), are provided on each of the exhaust manifold (7) a control valve; steam chamber having a plurality of independent (33-1) within said steam spraying zone (33); each steam chamber (33-1) steam manifold communicating respectively (I) through respective steam manifolds (3), each steam manifold (3) 均设有控制阀; 所述滞留区(22)内具有多个独立的滞留室(22-1); 所述的抽气区(44)的多个抽气室(44-1)沿纸张进入方向的横向均匀分布;所述抽气室(44-1)与蒸汽室(33-1) 一一对应,且宽度相等。 Are provided with a control valve; retention chamber having a plurality of independent (22-1) (22) of said retention area; said extraction zone (44) of the plurality of pumping chambers (44-1) in the paper into the uniformly distributed transverse direction; said suction chamber (44-1) and the steam chamber (33-1) correspond, and the same width.
  2. 2.根据权利要求1所述的二次调节的蒸汽箱,其特征在于:所述的抽气区(44)的横向宽度与喷汽区(33)相等,抽气区(44)的高度为喷汽区(33)高度的1/3〜1/2。 The secondary regulation of the steam box as claimed in claim 1, wherein: said extraction zone (44) and the lateral width of the steam injection zone (33) equal to the height of the suction zone (44) is steam spraying zone (33) the height of 1 / 3~1 / 2.
  3. 3.根据权利要求1所述的二次调节的蒸汽箱,所述的抽气区(44)纸张入口方向前端板及对应的预热室(12)底部与纸张的距离高于喷汽区(33)滞留区(22)底部与纸张的距离,高度差L = 0.5〜2mm。 The secondary regulator steam box according to claim 1, said extraction zone (44) and the front end plate sheet inlet direction corresponding to the preheating chamber (12) from the bottom of the paper is higher than the steam spraying zone ( 33) from the bottom sheet and the retention area (22), the height difference L = 0.5~2mm.
  4. 4.根据权利要求3所述的二次调节的蒸汽箱,其特征在于:所述抽气支管(7)安装在抽气区(44)的顶部,抽气区(44)内的空气向上进入抽气支管⑴和抽气总管(6)内。 The secondary regulation of the steam box as claimed in claim 3, wherein: said exhaust manifold (7) mounted on the top of the extraction zone (44), the air in the extraction zone (44) up into the the exhaust manifold and exhaust manifold ⑴ (6).
  5. 5.根据权利要求3所述的二次调节的蒸汽箱,其特征在于:所述的滞留区(22)横向宽度与喷汽区(33)相等,高度为喷汽区(33)的1/3〜1/2。 The secondary regulation of the steam box as claimed in claim 3, wherein: (22) the lateral width steam spraying zone (33) of the retention area equal to the height of the steam spraying zone (33) 1 / 3~1 / 2.
  6. 6.根据权利要求3所述的二次调节的蒸汽箱,其特征在于:所述的滞留区(22)的多个滞留室(22-1)沿纸张进入方向的横向均匀分布;所述滞留室(22-1)与蒸汽室(33-1) —一对应,且宽度相等。 The secondary adjustment of the steam box as claimed in claim 3, wherein: said retention area (22) a plurality of retention chambers (22-1) are uniformly distributed along the lateral direction into the paper sheet; the retentate chamber (22-1) and the steam chamber (33-1) - one correspondence, and the same width.
  7. 7.根据权利要求4所述的二次调节的蒸汽箱,其特征在于:所述抽气总管(6)与抽风机相连。 The secondary adjustment of the steam box as claimed in claim 4, wherein: said exhaust manifold (6) connected to the exhaust fan.
  8. 8.采用权利要求1至7中任一项所述二次调节的蒸汽箱用于调节纸张的横幅水份含量的方法,其特征在于包括如下步骤: 首先关闭抽气总管(6)上的抽气支管(7)和总管控制阀(2),打开预热支管(9)上的预热控制阀(10)和蒸汽回流管(11)上的控制阀,对整个蒸汽箱进行预热,防止蒸汽进入蒸汽箱中和抽风机抽气时产生冷凝水;当蒸汽箱的温度达到蒸汽的温度时,预热完成,蒸汽箱开始工作,控制预热支管(9)和蒸汽回流管(11)上的蒸汽流量; 打开抽气总管(6)上的控制阀开始抽气,同时打开总管控制阀(2),蒸汽通过蒸汽支管(3)进入到喷汽区(33)的各个独立的蒸汽室(33-1)内; 调节抽气支管(7)上的控制阀,控制对应抽气支管(7)的抽气量,以获得调节从抽气室(44-1)进入蒸汽室(33-1)内的空气量,初步获得调节对应的纸张横向部位蒸汽的冷凝速度和传热效果,完成纸张的横幅水 8. The use claimed in claims 1 to 7, the secondary regulator a steam box according to any method of adjusting the moisture content of the banner sheets for, characterized by comprising the steps of: shutting off the exhaust manifold first pump (6) on the gas manifold (7) and the control valve manifold (2), warm-up control valve opening (10) and a vapor return conduit (11) of the control valve, the entire steam box preheating the preheat leg (9), to prevent steam into the steam blower box and when the exhaust condensed water; when the temperature of the steam temperature of the steam reaches the tank, the preheating is finished, the steam box to work, controls the preheat leg (9) and the steam return pipe (11) steam flow; open the exhaust manifold on the exhaust control valve starts (6), while opening the control valve manifold (2), into steam through the steam manifold (3) steam spraying zone (33) of each individual steam chamber ( ) within 33-1; adjust the control valve on the exhaust manifold (7), the control amount corresponding to exhaust exhaust manifold (7) to obtain adjusted from pumping chamber (44-1) into the steam chamber (33-1) amount of air, to obtain the initial rate of condensation and the heat transfer sheet lateral effect adjustment portion corresponding to the steam, the water of the paper to complete the banner 含量分布初步调节; 调节蒸汽支管(3)上的控制阀,控制与其对应蒸汽支管的蒸汽流量,以获得各蒸汽室(33-1)的蒸汽流量,从而进一步调节对应部位纸张的水份含量。 Adjusting the content of the initial distribution; steam regulating valve in the control manifold (3), steam flow of steam corresponding to the control manifold, in order to obtain each of the steam chamber (33-1) of the steam flow, thereby further regulating the moisture content of the corresponding parts of the paper.
CN 201410424985 2014-08-26 2014-08-26 A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner CN104195866B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201410424985 CN104195866B (en) 2014-08-26 2014-08-26 A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201410424985 CN104195866B (en) 2014-08-26 2014-08-26 A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner

Publications (2)

Publication Number Publication Date
CN104195866A true CN104195866A (en) 2014-12-10
CN104195866B true CN104195866B (en) 2016-05-04

Family

ID=52081220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201410424985 CN104195866B (en) 2014-08-26 2014-08-26 A method for adjusting the secondary regulation of the steam box and the paper moisture content of the banner

Country Status (1)

Country Link
CN (1) CN104195866B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104988787B (en) * 2015-07-08 2017-08-25 华南理工大学 A steam device and method for adjusting the degree of vacuum using a paper moisture
CN106418645A (en) * 2016-12-13 2017-02-22 安徽中烟再造烟叶科技有限责任公司 Water-spraying cooling device of two ends of cylinder surface of Yankee dryer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358900A (en) * 1980-09-24 1982-11-16 Dove Norman F Apparatus to supply steam including steam evacuation
US4702015A (en) * 1986-02-28 1987-10-27 Thermo Electron - Web Systems, Inc. Evaporative-cooling apparatus and method for the control of web or web-production machine component surface temperatures
US4915788A (en) * 1987-01-20 1990-04-10 V.I.B. Apparatebau Gmbh Method of contacting running webs with steam
CN204059092U (en) * 2014-08-26 2014-12-31 华南理工大学 Secondary-adjusting steam box

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121674B (en) * 2003-01-09 2011-02-28 Metso Paper Inc Method and arrangement for a paper or board web to wet the movable
US7513975B2 (en) * 2003-06-25 2009-04-07 Honeywell International Inc. Cross-direction actuator and control system with adaptive footprint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358900A (en) * 1980-09-24 1982-11-16 Dove Norman F Apparatus to supply steam including steam evacuation
US4702015A (en) * 1986-02-28 1987-10-27 Thermo Electron - Web Systems, Inc. Evaporative-cooling apparatus and method for the control of web or web-production machine component surface temperatures
US4915788A (en) * 1987-01-20 1990-04-10 V.I.B. Apparatebau Gmbh Method of contacting running webs with steam
CN204059092U (en) * 2014-08-26 2014-12-31 华南理工大学 Secondary-adjusting steam box

Also Published As

Publication number Publication date Type
CN104195866A (en) 2014-12-10 application

Similar Documents

Publication Publication Date Title
CN202227136U (en) Cloth wetting shrinkage setting machine
CN202290500U (en) Lithium ion battery pole piece coating machine with coating internal-heating drying method
US6742280B1 (en) Method in drying of paper
CN200996768Y (en) Tunnel drying chamber
CN204987745U (en) Drying box used for spinning
CN102787526A (en) Life paper single-cylinder paper machine based on tail steam flow control and heat pump technologies
CN102294883A (en) One kind of single-sided printing or coating of the upper and lower hot air drying oven
CN202648367U (en) Wet-method synthetic leather bass drying system
CN200989718Y (en) Strip steel hot air drier
CN203320343U (en) 1200 meter toilet paper machine
WO1991014045A1 (en) Steam shower with reduced condensate drip
CN105571291A (en) Textile drying machinery
CN202890440U (en) Multilayer bridge type oven drying device used for producing papermaking-method reconstituted tobacco
CN201520898U (en) Drying device of towel color-developing soap steam water washing and drying machine
CN101647599A (en) Flatbed electromagnetic heating tobacco drier
CN202705797U (en) Heating device for paper calender
CN201648860U (en) Device for humidifying paper web or paperboard web and equipment using same
CN203177590U (en) Efficient dryer
EP2896743A1 (en) A process and a machine for making a tissue paper web
CN102797064A (en) Drying and adjusting process and device for viscose fibers
CN102677414A (en) Humidifying method of acetate fibre and humidifying device of acetate fibre
CN2511697Y (en) Pressure constant drier for paper making apparatus
CN1231006A (en) Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine
CN205171172U (en) Fabric ironing mechanism
CN201915293U (en) Ventilating system for paper making

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model