CN101974864A - Screen cloth of spiral press master and spiral press master containing same - Google Patents
Screen cloth of spiral press master and spiral press master containing same Download PDFInfo
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- CN101974864A CN101974864A CN 201010538782 CN201010538782A CN101974864A CN 101974864 A CN101974864 A CN 101974864A CN 201010538782 CN201010538782 CN 201010538782 CN 201010538782 A CN201010538782 A CN 201010538782A CN 101974864 A CN101974864 A CN 101974864A
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Abstract
The invention discloses a press master screen cloth, comprising an inlet section screen cloth and an outlet section screen cloth, wherein the plate thickness of the inlet section screen cloth is less than or equal to the pore size of an opening thereon, the outlet section screen cloth is a double-layer structure, and the plate thickness of each layer of screen cloth is less than or equal to the pore size of the opening thereon. The invention also discloses a spiral press master containing the screen cloth of the press master. In the invention, the double-layer structure is adopted at the outlet section of the press master, thereby the strength of the screen cloth is high and the phenomenon that the screen cloth is pressed to be broken is prevented. The plate thicknesses of the inner and outer screen cloths are less than or equal to the pore size, and a punching method can be adopted in processing, thereby the processing efficiency is high and the manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of screen cloth and the acroll press washer that comprises this screen cloth of acroll press washer, belong to paper pulp manufacturing equipment technical field.
Background technology
At present, the acroll press washer in the pulping and paper-making field adopts the reducing variable-pitch propeller to dewater in conjunction with outer screen to reach the purpose that improves pulp density.Acroll press washer is made up of support, helical axis, screen cloth, screen bed base, charging aperture, discharging opening and transmission mechanism, paper making pulp enters acroll press washer by charging aperture, constantly dewater under the extruding of helical axis and be transported to discharging opening and send, discharge in the hole of the water of deviating from screen cloth.Mesh structure is to open 2～3 millimeters holes of diameter on 2～3 millimeters thick plates, can deviate from smoothly for making liquid, the stock losses that reduces slurry to discharge together simultaneously and produce with liquid, screen cloth requires opening diameter little and very high percent opening arranged, on one square metre of sieve plate, to process several ten thousand holes, the sieve diameter dimensional requirement is accurate, requires smooth not hanging material in the hole.The processing of sieve screen apertures is generally all based on punching processing, and thickness of slab is limited in and is less than or equal to aperture value.Shortcomings such as adopt electric spark method processing sieve screen apertures, have cloth hole inequality, coarse, precision is difficult to assurance in the hole in, and especially working (machining) efficiency is low.
Because paper pulp is extruded, press master exit screen cloth is subjected to very big radial load, though screen cloth is supported by screen bed base usually, because screen cloth thickness small intensity deficiency, press master the exit screen cloth often occurs and squeezed broken phenomenon, influences the normal use of press master.
Summary of the invention
The present invention can avoid the exit often to be squeezed broken phenomenon for solving the acroll press washer that the technical problem that exists in the known technology provides a kind of screen cloth of acroll press washer and comprises this screen cloth, guarantee that press master normally moves, and screen cloth is processed easily.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of press master screen cloth, comprise inducer screen cloth and outlet section screen cloth, described inducer screen cloth thickness of slab is less than or equal to the perforate aperture on it, described outlet section screen cloth is a double-decker, and every layer of screen cloth thickness of slab is less than or equal to the perforate aperture on it.
Inner screen that described outlet section screen cloth comprises is identical with described inducer screen cloth thickness of slab, internal diameter is identical and opening diameter is identical and the outer screen affixed with it, the thickness of slab of the described inner screen of thickness ratio of described outer screen is thick, and the opening diameter on the described outer screen is bigger than its thickness of slab.
Another technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of acroll press washer comprises above-mentioned press master screen cloth.
Advantage and good effect that the present invention has are: adopt double-decker at the press master outlet section, the screen strength height screen cloth can not occur and be squeezed broken phenomenon.Ectonexine screen cloth thickness of slab is less than or equal to aperture value, can adopt hole-punching method processing, working (machining) efficiency height, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of acroll press washer of the present invention;
Fig. 2 is the I portion enlarged drawing of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1.
Among the figure: 1, charging aperture, 2, the inducer screen cloth, 3, helical axis, 4, screen bed base, 5, the outlet section screen cloth, 6, discharging opening, 7, outer screen, 8, inner screen.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1～Fig. 3, a kind of acroll press washer of the present invention comprises helical axis 3, screen cloth, screen bed base 4, charging aperture 1 and discharging opening 6, and wherein screen cloth is formed by five sections, three sections screen clothes near charging aperture 1 are inducer screen cloth 2, and two sections screen clothes of close discharging opening 6 are outlet section screen cloth 5.Inducer screen cloth 2 adopts the single-deck screen web frame, outlet section screen cloth 5 adopts the two layer screen web frame, inner screen 8 is identical with the diameter of inducer screen cloth 2, inner screen 8 is all with inducer screen cloth 2 and opens 2～3 millimeters apertures of diameter on 2～3 millimeters thick plates, outer screen 7 is to open 20～30 millimeters macropores of diameter on 5～6 millimeters thick plates, and inside and outside screen cloth 8,7 welding backs are fixing by screen bed base 4.
In the present invention, will be defined as the outlet section screen cloth near the screen cloth section that is not more than screen cloth total length 40% length of press master import.
See also Fig. 1, adopt the acroll press washer of above-mentioned screen cloth, screen cloth adopts double-decker in press master discharging opening section, and broken phenomenon can not appear being squeezed in the intensity height.Ectonexine screen cloth thickness of slab is less than or equal to the aperture value of perforate on it, can adopt hole-punching method processing, working (machining) efficiency height, low cost of manufacture.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (3)
1. press master screen cloth, comprise inducer screen cloth and outlet section screen cloth, described inducer screen cloth thickness of slab is less than or equal to the perforate aperture on it, it is characterized in that, described outlet section screen cloth is a double-decker, and every layer of screen cloth thickness of slab is less than or equal to the perforate aperture on it.
2. press master screen cloth according to claim 1, it is characterized in that, inner screen that described outlet section screen cloth comprises is identical with described inducer screen cloth thickness of slab, internal diameter is identical and opening diameter is identical and the outer screen affixed with it, the thickness of slab of the described inner screen of thickness ratio of described outer screen is thick, and the opening diameter on the described outer screen is bigger than its thickness of slab.
3. an acroll press washer is characterized in that, comprises as claim 1 or the described press master screen cloth of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010538782 CN101974864A (en) | 2010-11-10 | 2010-11-10 | Screen cloth of spiral press master and spiral press master containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010538782 CN101974864A (en) | 2010-11-10 | 2010-11-10 | Screen cloth of spiral press master and spiral press master containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101974864A true CN101974864A (en) | 2011-02-16 |
Family
ID=43574766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010538782 Pending CN101974864A (en) | 2010-11-10 | 2010-11-10 | Screen cloth of spiral press master and spiral press master containing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101974864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978313A (en) * | 2018-09-02 | 2018-12-11 | 临武县华湘再生资源回收有限公司 | The equipment of paper pulp is recycled from recycled paper mill waste residue |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB548271A (en) * | 1941-03-31 | 1942-10-02 | Cellulose Dev Corp Ltd | An improved method and apparatus for expressing liquid from pulp |
| US5200072A (en) * | 1990-08-16 | 1993-04-06 | Ahlstrom Screen Plates Inc. | Screen plates and methods of manufacture |
| EP0651091A1 (en) * | 1993-10-28 | 1995-05-03 | Beloit Technologies, Inc. | Finely perforated undulating screen cylinder |
| CN2297469Y (en) * | 1997-06-27 | 1998-11-18 | 山东工程学院 | Composite external vacuum inside spin pulp extruder |
| CN2394946Y (en) * | 1999-09-22 | 2000-09-06 | 何炳义 | Double screw pulp extruder |
| WO2009038529A1 (en) * | 2007-09-19 | 2009-03-26 | Andritz Oy | Device for dewatering of pulp |
| CN201524655U (en) * | 2009-06-16 | 2010-07-14 | 乔素钦 | Roller screen |
-
2010
- 2010-11-10 CN CN 201010538782 patent/CN101974864A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB548271A (en) * | 1941-03-31 | 1942-10-02 | Cellulose Dev Corp Ltd | An improved method and apparatus for expressing liquid from pulp |
| US5200072A (en) * | 1990-08-16 | 1993-04-06 | Ahlstrom Screen Plates Inc. | Screen plates and methods of manufacture |
| EP0651091A1 (en) * | 1993-10-28 | 1995-05-03 | Beloit Technologies, Inc. | Finely perforated undulating screen cylinder |
| CN2297469Y (en) * | 1997-06-27 | 1998-11-18 | 山东工程学院 | Composite external vacuum inside spin pulp extruder |
| CN2394946Y (en) * | 1999-09-22 | 2000-09-06 | 何炳义 | Double screw pulp extruder |
| WO2009038529A1 (en) * | 2007-09-19 | 2009-03-26 | Andritz Oy | Device for dewatering of pulp |
| CN201524655U (en) * | 2009-06-16 | 2010-07-14 | 乔素钦 | Roller screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978313A (en) * | 2018-09-02 | 2018-12-11 | 临武县华湘再生资源回收有限公司 | The equipment of paper pulp is recycled from recycled paper mill waste residue |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110216 |