CN102296477A - Pressing dehydration enhancement device - Google Patents
Pressing dehydration enhancement device Download PDFInfo
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- CN102296477A CN102296477A CN2011102982364A CN201110298236A CN102296477A CN 102296477 A CN102296477 A CN 102296477A CN 2011102982364 A CN2011102982364 A CN 2011102982364A CN 201110298236 A CN201110298236 A CN 201110298236A CN 102296477 A CN102296477 A CN 102296477A
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- orifice plate
- lower floor
- upper strata
- casing
- steam
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Abstract
The invention discloses a pressing dehydration enhancement device, and belongs to papermaking equipment. In the prior art, steam cloud and mist are easily accumulated at a dead zone on the surface of a steam box and water drips so as to produce breakage of paper or defects on the surface of the paper. The device comprises a box body and flow guide walls, wherein the top of the box body is provided with an inlet; an upper layer pore plate is arranged in the box body and is provided with convex holes and upper layer discharge holes; the upper layer discharge holes are connected with upper layer discharge pipes which are led out of the box body; the bottom of the box body is provided with a lower layer pore plate; the lower layer pore plate is provided with through holes and lower layer discharge holes; steam spray nozzles are arranged on the through holes; the lower layer discharge holes are connected with lower layer discharge pipes which are led out of the box body; the flow guide walls are connected to the lower side of the lower layer pore plate; and the steam spray nozzles are distributed between two adjacent flow guide walls. When the device works, saturated steam passes through the two pore plates, so that condensation water is effectively prevented from being brought to the paper by a steam flow, and paper defects are avoided; and a slot of 3-5mm is only remained between the device and a wet paper web, so that good leakproofness is guaranteed, and the steam cloud and mist phenomenon at the site disappears.
Description
Technical field
The present invention relates to paper making equipment, it specifically is a kind of paper industry press section that is applied to, the wet web that enters nip is carried out heat treated, improve and enter the press dewatering intensifier of oven dry portion paper web mass dryness fraction, be applicable to and the supporting use of various paper machines horizontal moisture deviation in mass dryness fraction when the raising wet web enters oven dry portion and the adjusting wet web.
Background technology
In paper industry, the press dewatering intensifier is a kind of efficient energy-saving device.Because oven dry portion is the energy resource consumption the best part in paper-making process.The energy that the operation of oven dry portion consumes accounts for 55% of paper plant's total energy consumption, therefore reduces drying cost, can bring huge earnings outlook for paper plant.Show according to external experience: enter the every raising 1% of oven dry portion web dryness, oven dry portion energy consumption just can reduce about about 4%.As everyone knows, in paper-making process, partly dewater than much easier at drying section in process upstream.So, if can and the press dewatering intensifier be installed, improve mass dryness fraction and improve the effective means of banner moisture distribution as a kind of in the press section of a paper machine appropriate design, that works reduces the consumption of the energy greatly.Therefore, a lot of paper mills are installed in forming section or press section with steam-jet siphon or simple and easy steam casing, though typical traditional steam-jet siphon or simple and easy steam casing have the tremendous potential that reduces operation and cost of investment, because of a lot of weak points of its existence simple in structure.For example: heat transference efficiency is lower, drying and banner adjusting function are poor, and it all is that paper plant's operation is worried at the disconnected paper of accumulating, dripping and therefore cause in dead band, traditional steam chest surface or at the flaw that paper surface brings that steam cloud and mist phenomenon fiber appears in the scene.
Summary of the invention
The technical problem that the present invention at first will solve and the technical assignment of proposition are to overcome easily accumulating the steam cloud and mist, drip and disconnected paper that causes or the defectives of bringing at paper surface such as flaw in dead band, steam chest surface of prior art, a kind of press dewatering intensifier is provided, and it is lower further to overcome heat transference efficiency on this basis, the defective of drying and banner adjusting function difference.
For reaching primary and foremost purpose of the present invention, press dewatering intensifier of the present invention comprises casing and training wall, it is characterized in that: import is established at the top of described casing, establish the upper strata orifice plate in the described casing, establish protruding hole and upper strata porus excretorius on the orifice plate of described upper strata, the upper port in described protruding hole is higher than the upper surface of described upper strata orifice plate, the upper port of described upper strata porus excretorius is positioned at the upper surface of described upper strata orifice plate and connects the upper strata excretory duct that causes outside the described casing on this upper strata porus excretorius, described bottom half is set a layer orifice plate, establish through hole and lower floor's porus excretorius on the described lower floor orifice plate, the upper end that steam jet and described steam jet are installed on the described through hole is higher than the upper surface of described lower floor orifice plate, the upper port of described lower floor porus excretorius is positioned at the upper surface of described lower floor orifice plate and connects the lower floor's excretory duct that causes outside the described casing on this lower floor's porus excretorius, and downside and described steam jet that described training wall is connected described lower floor orifice plate are distributed between adjacent two training walls.
As the optimization technique measure, in order to change the direction that high velocity vapor is spurted, avoid steam vertically to spurt the infringement paper web, the both sides, front and back of described training wall lower limb are set as the inclined-plane, make steam form an angle with wet web and contact.
As the optimization technique measure, for the ease of assembling, described upper strata excretory duct is a bend pipe.Described lower floor excretory duct is the hole pipe that is opened on the described training wall.
As the optimization technique measure, lower in order to overcome the prior art heat transference efficiency, the defective of drying and banner adjusting function difference: described casing is separated into first warm area that is positioned at the front side and second warm area that is positioned at rear side by the vertical dividing plate that extends to described lower floor orifice plate from described import, and described import is divided into first import that is communicated with described first warm area and second import that is communicated with described second warm area.Further, establish a lateral partitions between described upper strata orifice plate and lower floor's orifice plate in described second warm area, and the zone between described lateral partitions, lower floor's orifice plate, vertical dividing plate and the casing being separated into cell at width establishing wallboard between described lateral partitions and the lower floor's orifice plate, corresponding each cell is installed flow control valve on described lateral partitions.Perhaps, space in the described casing between described upper strata orifice plate and lower floor's orifice plate is divided into first warm area that is positioned at the front side and second warm area that is positioned at rear side by a vertical dividing plate, establish a lateral partitions between described upper strata orifice plate and lower floor's orifice plate in described second warm area, and the zone between described lateral partitions, lower floor's orifice plate, vertical dividing plate and the casing being separated into cell at width establishing wallboard between described lateral partitions and the lower floor's orifice plate, corresponding each cell is installed flow control valve on described lateral partitions.
As the optimization technique measure, for the ease of assembling, described casing is formed by connecting by flange by upper box, lower box, and described upper strata orifice plate is located at the bottom of described upper box, and described lower floor orifice plate is located at the bottom of described lower box.
As the optimization technique measure, for the ease of assembling, described training wall is connected with described lower floor orifice plate by securing member.
The invention has the beneficial effects as follows:
1) saturated vapor has effectively stoped condensed water to be taken on the paper by steam flow by the twice orifice plate, prevents that paper defects from occurring;
2) heat transfer efficiency height increases substantially out the web dryness of press section, increases wet web strength, reduces oven dry portion steam consumption, does not destroy l Water Paper page or leaf fibre structure simultaneously again;
3) the banner regulating power is strong, can effectively improve horizontal moisture distribution, reduces horizontal moisture deviation, thereby improves page characteristic;
4) design utilization press dewatering intensifier will make it have higher dewatering efficiency, makes the web dryness that enters oven dry portion improve 2%-4%, thereby reduces steam consumption 8%-16%, and this device has higher reliability simultaneously;
5) have only the slit of 3-5mm between this device and the wet web, good leak tightness, on-site steam cloud and mist phenomenon disappears.
Description of drawings
Fig. 1 is a kind of sectional structure schematic diagram that press dewatering intensifier of the present invention is dissectd along the vertical plane of paper web direct of travel;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram of upper strata shown in Figure 1 orifice plate;
Fig. 4 is the schematic diagram of lower floor shown in Figure 1 orifice plate;
Fig. 5 is the vertical view of upper strata shown in Figure 1 orifice plate;
Fig. 6 is the vertical view of lower floor shown in Figure 1 orifice plate;
Fig. 7 is the vertical view of upper box shown in Figure 1.
Fig. 8 is the vertical view of lower box shown in Figure 1.
The number in the figure explanation:
The 01-casing, 11-upper box, 12-lower box, 13-import, the vertical dividing plate of 14-, 15-first warm area, 16-second warm area, 17-first import, 18-second import, 19-lateral partitions, 110-wallboard, 111-cell, 112-flow control valve;
The 02-training wall, the 21-inclined-plane;
03-upper strata orifice plate, the protruding hole of 31-, 32-upper strata porus excretorius, 33-upper strata excretory duct;
04-lower floor orifice plate, 41-through hole, 42-lower floor porus excretorius, 43-steam jet, 44-lower floor excretory duct;
The 05-paper web.
The specific embodiment
The present invention will be further described below in conjunction with Figure of description.
Press dewatering intensifier of the present invention, as Fig. 1, shown in 2, it comprises casing 01 and training wall 02, the top of casing 01 is established import 13 and is used to into steam, establish upper strata orifice plate 03 in the casing 01, establish on the upper strata orifice plate 03 be used for downward flowing steam protruding hole 31(referring to Fig. 3,5) and be used to drain the upper strata porus excretorius 32 of condensed water, the upper port in protruding hole 31 is higher than the upper surface of upper strata orifice plate 03 and can avoids condensed water to trickle through protruding hole 31 downwards, the upper surface that the upper port of upper strata porus excretorius 32 is positioned at upper strata orifice plate 03 is beneficial to the condensed water of draining on the upper strata orifice plate 03 (referring to Fig. 3), and on this upper strata porus excretorius 32, connect the upper strata excretory duct 33 cause outside the casing 01, and then can (can connect drain valve by upper strata excretory duct 33 drainage condensed waters in the outer end of upper strata excretory duct, needle valve etc.), layer orifice plate 04 set in casing 01 bottom, establish through hole 41(on lower floor's orifice plate 04 referring to Fig. 4,6) and be used to drain lower floor's porus excretorius 42 of condensed water, the upper surface that the upper end that the steam jet 43 be used for downward uperize and steam jet 43 be installed on the through hole 41 is higher than lower floor's orifice plate 04 carries condensed water when avoiding uperize, the upper surface that the upper port of lower floor's porus excretorius 42 is positioned at lower floor's orifice plate 04 is beneficial to the condensed water of draining on lower floor's orifice plate 04 and connects the lower floor's excretory duct 44 that causes outside the casing 01 on this lower floor's porus excretorius 42, downside and steam jet 43 that training wall 02 is connected lower floor's orifice plate 04 are distributed between adjacent two training walls, thus by training wall to steam jet spray the steam water conservancy diversion that gets off to paper web 05(referring to Fig. 1).
During the work of this press dewatering intensifier, steam enters casing 01, flows through successively to spray to training wall 02 behind protruding hole 31 on the upper strata orifice plate 03, the steam jet 43 on lower floor's orifice plate 04 and flow backwards by training wall 02 and spray to paper web 05 afterwards from import 13.The traffic direction of paper web shows with arrow in Fig. 1, and the horizontal of paper web is the left and right directions of Fig. 2.
The upper strata orifice plate 03 of press dewatering intensifier of the present invention, lower floor's orifice plate 04 have filtered the water droplet that steam liquefies and produces in flow process, and by upper strata porus excretorius 32, lower floor's porus excretorius 42 discharge casings, airtight casing has also solved on-site steam cloud and mist phenomenon well simultaneously, saturated vapor has effectively stoped condensed water to be taken on the paper by steam flow by the twice orifice plate, prevents that paper defects from occurring.Saturated vapor is sprayed with higher speed by steam jet in casing, and saturated vapor contacted with paper surface in the shortest time like this, and paper web is heated rapidly, improves the wet web mass dryness fraction, reduces oven dry portion steam consumption.
As further improving and replenishing to technique scheme, the present invention also comprises the additional technical feature that following each section addressed, though Fig. 1,2 has comprised following all additional technical features, it is preferred embodiment of the present invention, but the present invention is not limited to this situation, they can be selected for use on the described technical scheme of epimere according to concrete effect when enforcement is of the present invention.
At first, in order to change the direction that high velocity vapor is spurted, avoid steam vertically to spurt the infringement paper web, the both sides, front and back of training wall 02 lower limb are set as inclined-plane 21, make steam form an angle with wet web and contact.
Secondly, for the ease of assembling, upper strata excretory duct 33 is a bend pipe, and lower floor's excretory duct 44 is for being opened in the hole pipe on the training wall 02.Casing 01 by upper box 11(referring to Fig. 7), lower box (referring to Fig. 8) is formed by connecting by flange, upper strata orifice plate 03 is located at the bottom of (as welding, be fastenedly connected etc.) upper box 11, and lower floor's orifice plate 04 is located at the bottom of (as welding, be fastenedly connected etc.) lower box 12.Training wall 02 is connected with lower floor orifice plate 04 by securing member (as screw, offering the screw hole that is used to wear screw this moment on lower floor's orifice plate).
The 3rd, lower in order to overcome the prior art heat transference efficiency, the defective of drying and banner adjusting function difference, the present invention can adopt following scheme: first, casing 01 is separated into first warm area 15 that is positioned at the front side and second warm area 16 that is positioned at rear side by the vertical dividing plate 14 that extends to lower floor's orifice plate 04 from import, and import 13 is divided into first import 17 that is communicated with first warm area 15 and second import 18 that is communicated with second warm area 16.But first warm area 15 and second warm area, 16 separate and independently supplying steam during work can divide successively to paper web 05 heating; Further, establish a lateral partitions 19 between upper strata orifice plate 03 and lower floor's orifice plate 04 in second warm area 16, and lateral partitions 19, lower floor's orifice plate 04, vertical dividing plate 14 and zone between the casing 01 are separated into cell 111 at width (left and right directions shown in Figure 2), corresponding each cell installation flow control valve 112 on lateral partitions 19 establishing wallboard 110 between lateral partitions 19 and the lower floor's orifice plate 04.Second, space in the casing between upper strata orifice plate and lower floor's orifice plate is divided into first warm area that is positioned at the front side and second warm area that is positioned at rear side by vertical dividing plate, establish a lateral partitions between upper strata orifice plate and lower floor's orifice plate in second warm area, and the zone between lateral partitions, lower floor's orifice plate, vertical dividing plate and the casing being separated into cell at width establishing wallboard between lateral partitions and the lower floor's orifice plate, corresponding each cell is installed flow control valve on lateral partitions.Described second kind of scheme is equivalent to the vertical dividing plate in first kind of scheme is positioned at the partial cancellation of orifice plate top, upper strata, figures no longer separately at this.Above-mentioned two kinds of schemes, vapor stream is behind the protruding hole 31 on the orifice plate of upper strata during work, directly 43 ejections of the steam jet on lower floor's orifice plate 04 of the steam of first warm area, 15 parts, the steam of second warm area, 16 parts are then earlier through the flow control valve 112 on the lateral partitions 19,43 ejections of the steam jet on lower floor's orifice plate 04 again.Can control the steam flow of each cell by flow control valve 112, make that second warm area is variable temperature controlled region, first warm area is the flat-temperature zone because of steam flow is constant, the flat-temperature zone mainly is to prevent from that air from moving into wet web to influence the stable of whole system, simultaneously also wet web is carried out preheating, variable temperature controlled region can be controlled the temperature of each cell separately, thereby regulates the horizontal moisture deviation of wet web.
It is good that all parts materials of the present invention all adopt 304 stainless steels.
Press dewatering intensifier of the present invention, it is installed in one 1760/120 type speciality paper press section of a paper machine, and the paper web mass dryness fraction that page enters drying cylinder obviously improves, and reduces broken end 2-3 time in the running every day, improved paper machine operation efficient, output improves about 5%.
Carried out statistics contrast several times after using this device continuously in kind paper production process, concrete data see the following form:
As can be seen from the above table, steam consumption descends obviously, saved cost, it is also beneficial for the fine and smooth degree of page paper to use this device simultaneously, so use the running efficiency that this device has energy-saving effect preferably, improved the paper machine. and using the back simultaneously also has certain benefit to page characteristic.
Claims (9)
1. press dewatering intensifier, comprise casing (01) and training wall (02), it is characterized in that: import (13) is established at the top of described casing (01), establish upper strata orifice plate (03) in the described casing (01), establish protruding hole (31) and upper strata porus excretorius (32) on the described upper strata orifice plate (03), the upper port in described protruding hole (31) is higher than the upper surface of described upper strata orifice plate (03), the upper port of described upper strata porus excretorius (32) is positioned at the upper surface of described upper strata orifice plate (03) and upward connects the upper strata excretory duct (33) that causes outside the described casing (01) at this upper strata porus excretorius (32), a layer orifice plate (04) set in described casing (01) bottom, establish through hole (41) and lower floor's porus excretorius (42) on the described lower floor orifice plate (04), described through hole (41) is gone up the upper surface that the upper end that steam jet (43) and described steam jet (43) are installed is higher than described lower floor orifice plate (04), the upper port of described lower floor porus excretorius (42) is positioned at the upper surface of described lower floor orifice plate (04) and (connect the lower floor's excretory duct (44) that causes outside the described casing (01) on 42, downside and described steam jet (43) that described training wall (02) is connected described lower floor orifice plate (04) are distributed between adjacent two training walls at this lower floor's porus excretorius.
2. press dewatering intensifier according to claim 1 is characterized in that: the both sides, front and back of described training wall (02) lower limb are set as inclined-plane (21).
3. press dewatering intensifier according to claim 1 is characterized in that: described upper strata excretory duct (33) is a bend pipe.
4. press dewatering intensifier according to claim 1 is characterized in that: described lower floor excretory duct (44) is for being opened in the hole pipe on the described training wall (02).
5. press dewatering intensifier according to claim 1, it is characterized in that: described casing (01) is separated into first warm area (15) that is positioned at the front side and second warm area (16) that is positioned at rear side by the vertical dividing plate (14) that extends to described lower floor orifice plate (04) from described import (13), and described import (13) is divided into first import (17) that is communicated with described first warm area (15) and second import (18) that is communicated with described second warm area (16).
6. press dewatering intensifier according to claim 5, it is characterized in that: establish a lateral partitions (19) that is positioned between described upper strata orifice plate (03) and the lower floor's orifice plate (04) in described second warm area (16), and between described lateral partitions (19) and lower floor's orifice plate (04), establish wallboard (110) with described lateral partitions (19), lower floor's orifice plate (04), zone between vertical dividing plate (14) and the casing (01) is separated into cell (111) at width, goes up corresponding each cell (111) in described lateral partitions (19) flow control valve (112) is installed.
7. press dewatering intensifier according to claim 1, it is characterized in that: the space in the described casing between described upper strata orifice plate and lower floor's orifice plate is divided into first warm area that is positioned at the front side and second warm area that is positioned at rear side by a vertical dividing plate, establish a lateral partitions between described upper strata orifice plate and lower floor's orifice plate in described second warm area, and between described lateral partitions and lower floor's orifice plate, establish wallboard with described lateral partitions, lower floor's orifice plate, zone between vertical dividing plate and the casing is separated into cell at width, and corresponding each cell is installed flow control valve on described lateral partitions.
8. press dewatering intensifier according to claim 1, it is characterized in that: described casing (01) is formed by connecting by flange by upper box (11), lower box (12), described upper strata orifice plate (03) is located at the bottom of described upper box (11), and described lower floor orifice plate (04) is located at the bottom of described lower box (12).
9. press dewatering intensifier according to claim 1 is characterized in that: described training wall (02) is connected with described lower floor orifice plate (04) by securing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110298236 CN102296477B (en) | 2011-09-30 | 2011-09-30 | Pressing dehydration enhancement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110298236 CN102296477B (en) | 2011-09-30 | 2011-09-30 | Pressing dehydration enhancement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102296477A true CN102296477A (en) | 2011-12-28 |
| CN102296477B CN102296477B (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110298236 Expired - Fee Related CN102296477B (en) | 2011-09-30 | 2011-09-30 | Pressing dehydration enhancement device |
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| Country | Link |
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| CN (1) | CN102296477B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689897A (en) * | 1995-09-18 | 1997-11-25 | Voith Sulzer Papiermaschinen Gmbh | Steam blast box and method for the zone-wise temperature control of a traveling paper web |
| US6449874B2 (en) * | 2000-04-06 | 2002-09-17 | Metso Paper Automation Oy | Method for blowing steam against paper web, and steam box of paper machine |
| CN1688758A (en) * | 2002-10-08 | 2005-10-26 | 三菱丽阳工程株式会社 | Pressurized steam-jetting nozzle, and method and apparatus for producing nonwoven fabric using the nozzle |
| US6962296B2 (en) * | 2002-10-16 | 2005-11-08 | Abb Ltd. | Steam water spray systems |
| CN101684626A (en) * | 2008-05-31 | 2010-03-31 | Abb有限公司 | A steam shower having improved maintenance access |
| CN202247515U (en) * | 2011-09-30 | 2012-05-30 | 浙江华邦特种纸业有限公司 | Squeezing dehydration enhancing device |
-
2011
- 2011-09-30 CN CN 201110298236 patent/CN102296477B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689897A (en) * | 1995-09-18 | 1997-11-25 | Voith Sulzer Papiermaschinen Gmbh | Steam blast box and method for the zone-wise temperature control of a traveling paper web |
| US6449874B2 (en) * | 2000-04-06 | 2002-09-17 | Metso Paper Automation Oy | Method for blowing steam against paper web, and steam box of paper machine |
| CN1688758A (en) * | 2002-10-08 | 2005-10-26 | 三菱丽阳工程株式会社 | Pressurized steam-jetting nozzle, and method and apparatus for producing nonwoven fabric using the nozzle |
| US6962296B2 (en) * | 2002-10-16 | 2005-11-08 | Abb Ltd. | Steam water spray systems |
| CN101684626A (en) * | 2008-05-31 | 2010-03-31 | Abb有限公司 | A steam shower having improved maintenance access |
| CN202247515U (en) * | 2011-09-30 | 2012-05-30 | 浙江华邦特种纸业有限公司 | Squeezing dehydration enhancing device |
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| CN102296477B (en) | 2013-09-04 |
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Effective date of registration: 20170619 Address after: 324400 No. 38 Jinxing Avenue, Longyou Industrial Park, Quzhou, Zhejiang Co-patentee after: Winbond ancient building new material Co. Ltd. Patentee after: Zhejiang Winbon Special Paper Co., Ltd. Address before: 324400 No. 38 Jinxing Avenue, Longyou Industrial Park, Quzhou, Zhejiang Patentee before: Zhejiang Winbon Special Paper Co., Ltd. |
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