CN88201313U - Wet press of paper-making machines - Google Patents
Wet press of paper-making machines Download PDFInfo
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- CN88201313U CN88201313U CN 88201313 CN88201313U CN88201313U CN 88201313 U CN88201313 U CN 88201313U CN 88201313 CN88201313 CN 88201313 CN 88201313 U CN88201313 U CN 88201313U CN 88201313 U CN88201313 U CN 88201313U
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Abstract
The utility model belongs to a pressing device for a paper making machine. A pre-pressing regulating roll is arranged in front of the pressing roll of the common pressing device, and a water guiding plate and a drainage channel connected with the water guiding plate are arranged in front of the pressing region of the lower pressing roll. Before pressing, paper bearing felt cloth and wet paper are tensioned by the pre-pressing regulating roll, and the pre-pressing regulating roll is coated on an upper pressing roll. Through the pressing device for a paper making machine, the phenomenon of pressing mark can be prevented from generating.
Description
The design belongs to the device that the paper machine press section is regulated pressure.
In common plain-barreled roll squeezing, the water in the l Water Paper can only see through the woollen blanket diffluence to the direction opposite with the woollen blanket traffic direction.Water velocity distance very high, that flow through woollen blanket is also long, therefore produces higher hydraulic pressure and bigger pressure ladder change.If wet web strength is big inadequately, embossing will occurs and promptly press the stain phenomenon.Steep in order to prevent to produce to press, the common practice is to increase glazing felt to make the l Water Paper clad can, and l Water Paper is clipped between the upper and lower woollen blanket by squeezing.It is the rotating device that has increased by a cover glazing felt that there is one of shortcoming in this measure, makes equipment complicated, the running cost height.Another shortcoming is that rough surface is all exerted pressure on the paper web two sides through woollen blanket.
The design's purpose is the pressing device that proposes a kind of new construction, can have the anti-preferably stain performance of pressing without top felt, is beneficial to strengthen the pressure of squeezing, improves water separation capability.
Present design is to set up one to give the pressure dancer rools before upper and lower pressure roller, and the diversion plate is arranged before the nip of lower compression roller, diversion plate lower link drainage ditch.
The design's principle is to utilize to give to press dancer rools to make to hold the paper woollen blanket and l Water Paper was squeezed earlier before entering squeezing, utilizes and squeezes earlier the dehydrating effect that the measure raising of afterwards pressing is squeezed.Steep phenomenon with avoiding producing pressing.
The design's characteristics and advantage are to press dancer rools to replace top felt and rotating device thereof with giving, and device structure is simple, and running cost is low.Second characteristic and advantage are the simple squeezing principles of dewatering Principle replacement of afterwards pressing with squeezing earlier, can improve dewatering efficiency and prevent pressure and steep.The 3rd characteristic and advantage are to go up pressure roller l Water Paper is had the press polish effect.
The design's embodiment is as shown in drawings:
Fig. 1 is the design's a fundamental diagram
Fig. 2 is common plain-barreled roll press dewatering schematic diagram.
Fig. 3 is the application schematic diagram of the design in paper machine.
Last pressure roller 1, l Water Paper 2 holds paper woollen blanket 3, and lower compression roller 4 gives and presses dancer rools 5, water tumbler 6, water pouring 7, diversion plate 8, drainage ditch 9.
In conjunction with the embodiments the design further is illustrated.
Accompanying drawing 2 takes from that institution of higher education light industry specialty teaching material " pulp and paper industry machinery and equipment " Huanan (South China) Polytechnic College on probation, Tianjin Light Industry College compile in collaboration with, in November, the 1981 front page first impression of light industry publishing house, the 195th page.The various measures of steeping about the mechanism and the anti-pressure of press dewatering over year surplus in the of 30 in this teaching material, have been summarized.Press dewatering only limits to utilize the squeezing effect between the pressure roller in the argumentation of this teaching material.The design has broken through this traditional understanding of following for many years.Accompanying drawing 1 is the design's dewatering Principle signal.Elder generation was through the stage of an extruding before l Water Paper entered squeezing, and what form extruding condition is to give pressing dancer rools 5, mobile dancer rools 5 can change woollen blanket and the squeezed state of l Water Paper before entering squeezing.Extruding is to realize like this to the dehydration role.Woollen blanket 3 and l Water Paper 2 are conditioned roller 5 and tighten, begin to be squeezed, water gravitate when extruding in l Water Paper and the woollen blanket, pressure roller 1 place can produce water tumbler 6 in paper web contact back, when woollen blanket 3 and l Water Paper 2 touch and surround last pressure roller 1 surface, since before the extruding and the effect of gravity make moisture content concentrate in the woollen blanket 3 and are thrown to lower compression roller 4 nips, formation water pouring 7.Water in the l Water Paper that this moment and last pressure roller attach has been extruded in the woollen blanket and how has accumulated water pouring 7.The mass dryness fraction of l Water Paper obviously increases, and therefore paper web can not produce after entering nip P and press the stain phenomenon owing to attach with last pressure roller.Can guide water pouring 7 to get rid of at pre-installed diversion plate 8 of the nip of lower compression roller 6 and drainage ditch 9 unobstructedly.The design has tangible advantage than traditional squeeze dehydration unit.
The design can be suitable for the press section of various paper machines.Fig. 3 is a kind of situation that the design is set in paper machine.
The design is used on the paperboard machine, can be on following type the roll shaft of each corresponding specification of adapted:
Series I: the clean wide 1092mm of paper web, gauge 1800mm
Type: 4 cylinder single cylinders are multi-functional, produce 4～5 tons daily
Adapted: give and press the long 1180mm of dancer rools diameter 119mm
The long 1180mm of upper press diameter 400mm
The long 1180mm of lower press diameter 300mm.
Type: 15 tons of 6524 type cylinder machine daily outputs
Adapted: give and press the long 1180mm of dancer rools diameter 119mm
The long 1180mm of upper press diameter 400mm.
The long 1180mm of lower press diameter 215mm.
Type: lack 13～15 tons of net Multi-Cylinder Diesel Engine daily outputs more
Give and press the long 1200mm of dancer rools diameter 119mm
The long 1200mm of upper press diameter 500mm
The long 1200mm of lower press diameter 360mm.
Series II: the clean wide 1575mm of paper web, gauge 2400mm
Type: many cylinders multi-cylinder, produce 13～15 tons daily
Adapted: give and press the long 1300mm of dancer rools diameter 119mm
The long 1300mm of upper press diameter 400mm
The long 1300mm of lower press diameter 360mm
Type: many cylinders multi-cylinder, produce 10～13 tons daily
Adapted: give and press the long 1300mm of dancer rools diameter 119mm.
The long 1300mm of last upper press diameter 400mm.
The long 1300mm of lower press diameter 360mm.
Type: lack the net Multi-Cylinder Diesel Engine more, produce 25～30 tons daily
Adapted: give and press the long 2000mm of dancer rools diameter 119mm.
The long 2000mm of upper press diameter 500mm
The long 2000mm of lower press diameter 360mm.
Claims (6)
1, a kind of press device of paper-making machine comprises and holds paper woollen blanket, upper press, lower press, and it is characterized in that has the diversion plate before pressing the nip of dancer rools at lower compression roller holding to have on the position of paper woollen blanket before entering upper and lower pressure roller to give, and the diversion plate connects drainage ditch.
2, according to the described pressing device of claim 1, it is characterized in that giving pressure dancer rools diameter is 119mm, long 1180mm; Upper press diameter 400mm, long 1180mm; The long 1180mm of lower press diameter 300mm.
3,, it is characterized in that giving pressure dancer rools diameter 119mm, long 1180mm, the long 1180mm of the long 1180mm lower press of upper press diameter 400mm diameter 215mm according to the described pressing device of claim 1.
4,, it is characterized in that giving pressure dancer rools diameter 119mm, long 1200mm, upper press diameter 500mm, long 1200mm, lower press diameter 360mm, long 1200mm according to the described pressing device of claim 1.
5,, it is characterized in that giving pressure dancer rools diameter 119mm, long 1300mm, the long 1300mm of upper press diameter 400mm, lower press diameter 360mm, long 1300mm according to the described pressing device of claim 1.
6,, it is characterized in that giving pressure dancer rools diameter 119mm, long 2000mm, the long 2000mm of the long 2000mm lower press of upper press diameter 500mm diameter 360mm according to the described pressing device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201313 CN88201313U (en) | 1988-02-12 | 1988-02-12 | Wet press of paper-making machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201313 CN88201313U (en) | 1988-02-12 | 1988-02-12 | Wet press of paper-making machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88201313U true CN88201313U (en) | 1988-09-07 |
Family
ID=4836542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88201313 Expired - Lifetime CN88201313U (en) | 1988-02-12 | 1988-02-12 | Wet press of paper-making machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88201313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
| CN109487611A (en) * | 2018-12-28 | 2019-03-19 | 四川省犍为凤生纸业有限责任公司 | A kind of efficient paper pulp filter-pressing dehydration equipment |
-
1988
- 1988-02-12 CN CN 88201313 patent/CN88201313U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704314A (en) * | 2012-06-08 | 2012-10-03 | 方汉佐 | Reverse forming net device of special high-speed reverse-net multi-roller drying papermaking machine |
| CN102704314B (en) * | 2012-06-08 | 2016-06-08 | 方汉佐 | The dry reverse forming net device of special paper of inverse net multiple roll at a high speed |
| CN109487611A (en) * | 2018-12-28 | 2019-03-19 | 四川省犍为凤生纸业有限责任公司 | A kind of efficient paper pulp filter-pressing dehydration equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |