Clamped-wire formation apparatus
A sandwich forming and forming net technology, which is applied in the direction of textiles and papermaking, paper machine, paper machine wet end, etc., can solve the problems of low dehydration efficiency, short dehydration area, short service life of the net, etc., to achieve enhanced dehydration effect, Low dehydration energy consumption and long service life
Inactive Publication Date: 2004-01-07
李风宁
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Problems solved by technology
Most of the existing sandwich formers need to dehydrate with the help of vacuum box and other power dehydration components, the dehydration efficiency is low, the power consumption is large, and the service life of the mesh is short
The Bel-Bond gap former disclosed on page 195 of "Papermaking Principles and Engineering" published by China Light Industry Press in May 1994, dehydrates through the centrifugal action of the rollers, which reduces power consumption, but because it is a single-roller operation, and The wrap angle of the net to the roller is small, resulting in poor dehydration effect
Above-mentioned publication also discloses a kind of multi-type Papri gap former on page 196, and this former carries out extrusion dehydration by couch roll, forming roll, has improved dehydration effect, but the dehydration zone of this former is relatively Short, only suitable for the production of low-weight paper, because the breast roll, forming roll, and couch roll are arranged up and down, which is not conducive to the multi-layer forming of paper sheets
The 275th page of the ninth volume of "Pulp and Papermaking Handbook" published by China Light Industry Press in May, 1998 discloses a kind of F-shaped Duo former. The wrap angle is small, far less than 180°; ②The two nets do not form a dehydration effect on the vacuum couch roll by using the tension of the double net and the centrifugal force of the roller, and still need to use vacuum power for dehydration, and the power consumption is high
Method used
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Embodiment 1
[0010] This embodiment has a breast roll 10 and a headbox 9 corresponding to the breast roll. The breast roll 10 is connected with a 1# forming wire 1, and the 1# forming wire is connected with a group of dewatering rolls, which are respectively 1# dewatering roll 2 and 2# dehydration roller 3. The dewatering roller is also connected with 2# forming wire 6, and the wrapping angle of 1# forming wire 1 and 2# forming wire 6 to the dewatering roller is >180°. The dewatering roll is a solid roll and is located above the 1# forming wire. On the 1# forming wire 1 between the breast roll 10 and the dewatering roll, a wiper blade 7 and a dewatering box 13 are also connected. The 1# forming wire after the dewatering roller is also connected with 3 return rollers, and 2 offset points are formed between the 3 return rollers. Also be connected with dewatering net 4 on the turning back roller. A water receiving tray is installed at the position corresponding to the dewatering roller and...
Embodiment 2
[0012] In this embodiment, the dewatering roller is located below the 1# forming wire. Other technical characteristics are the same as embodiment 1.
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The present invention relates to a clamp wire forming device, it is equipped with a breast roll and a pulp-flowing tank correspondent to the breast roll, the forming wire No.1 is upward connected with the dewatering roll, and ove the dewatering roll the forming roll No.2 also is connected, and the included angle formed from the forming wire No.1 and forming wire No.2 which includes the dewateringroll is greater than 180 deg. Said invention is good in service effect, and its wire service life is long.
Description
Technical field [0001] The invention belongs to the technical field of papermaking machinery, in particular to a paper former. Background technique [0002] There are mainly three types of sheet formers for paper machines: cylinder wire, fourdrinier wire and sandwich wire, all of which are relatively mature technologies. Most of the existing sandwich formers need to be dehydrated by means of power dehydration components such as vacuum boxes, and the dehydration efficiency is low, the power consumption is large, and the service life of the mesh is short. The Bel-Bond gap former disclosed on page 195 of "Papermaking Principles and Engineering" published by China Light Industry Press in May 1994, dehydrates through the centrifugal action of the rollers, which reduces power consumption, but because it is a single-roller operation, and The wrapping angle of the net to the roller is small, resulting in poor dehydration effect. Above-mentioned publication also discloses a kind of...
Claims
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Inventor 李风宁
Owner 李风宁