CN204115452U - Anti-blocked screening net - Google Patents
Anti-blocked screening net Download PDFInfo
- Publication number
- CN204115452U CN204115452U CN201420614421.9U CN201420614421U CN204115452U CN 204115452 U CN204115452 U CN 204115452U CN 201420614421 U CN201420614421 U CN 201420614421U CN 204115452 U CN204115452 U CN 204115452U
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- screen
- sieve aperture
- diameter
- screening net
- sieve
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Abstract
A kind of Anti-blocked screening net, comprises screen cloth and screen frame; Described screen cloth comprises inner screen and outer screen, and described inner screen and outer screen are fixed on screen frame; Described inner screen and outer screen are respectively equipped with a plurality of sieve aperture, and this plurality of sieve aperture is arranged in equal equilateral triangle respectively in inner screen and outer screen; It is horn-like that the longitudinal section of described each sieve aperture is positioned at entrance point place, and it is cylindric for being positioned at middle, and it is horn-like for being positioned at port of export place.The utility model effectively can solve the problem of blocking sieve aperture, effectively extends the service life of screen cloth.Greatly shorten the downtime changed screen cloth and cause with cleaning sieve aperture, improve dewaterer dewatering efficiency.
Description
Technical field
The utility model belongs to comparatively wet stock dehydration field, and relate to a kind of Anti-blocked screening net, this Anti-blocked screening net is applicable in screw extrusion dewaterer.
Background technology
At present, screw extrusion dewaterer has been widely used in the dewatering operation before high humidity grain slag dry materials, as the dehydration of vinasse, pomace, the dregs of a decoction, manioc waste etc., can in material separating about 20% moisture, greatly alleviate the burden of drying machine, output increases substantially, and energy consumption significantly reduces, and is requisite treatment facility before high moisture material drying.
In screw extrusion dewaterer, usually adopt cylindrical hole screen cloth.Screen mesh common in prior art is cylindrical hole, and sieve diameter is unanimous between the higher and lower levels, and because sieve diameter generally is 1.5mm from inducer to the port of export, sieve aperture is arranged in mesh sheet by equilateral triangle.And this screen cloth is generally individual layer, does not have support, sieve diameter is easily out of shape, and because sieve diameter is less, easily blocks, and needs frequent replacing screen cloth and cleaning sieve aperture, considerably increases downtime, whole machine is paralysed; Be unfavorable for being separated of water and material, dewaterer dewatering efficiency is lower.
Therefore, how solving the problem, is the content that those skilled in the art will study.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model there is provided a kind of Anti-blocked screening net that can improve the dewatering efficiency of dewaterer.
The utility model is achieved through the following technical solutions: a kind of Anti-blocked screening net, comprises screen cloth and screen frame; Described screen cloth comprises inner screen and outer screen, and described inner screen and outer screen are fixed on screen frame; Described inner screen and outer screen are respectively equipped with a plurality of sieve aperture, and this plurality of sieve aperture is arranged in equal equilateral triangle respectively in inner screen and outer screen; It is horn-like that the longitudinal section of described each sieve aperture is positioned at entrance point place, and it is cylindric for being positioned at middle, and it is horn-like for being positioned at port of export place.
In technique scheme, related content is explained as follows:
1, in such scheme, the diameter that described each sieve aperture is positioned at entrance point place is greater than the diameter of middle, and the diameter that sieve aperture is positioned at entrance point place is less than the diameter at port of export place;
2, in such scheme, the side wall angle that described sieve aperture longitudinal section is positioned at entrance point place is 10 ° ~ 25 °;
3, in such scheme, the side wall angle that described sieve aperture longitudinal section is positioned at port of export place is 12 ° ~ 28 °;
4, in such scheme, the sieve diameter of described outer screen is greater than the sieve diameter of described inner screen, and the thickness of described outer screen is greater than the thickness of described inner screen;
5, in such scheme, described inner screen and outer screen are fixed on screen frame by pressing plate and trip bolt;
6, in such scheme, described pressing plate, trip bolt and screen frame all adopt stainless steel to make, and have acidproof, alkaline-resisting, heatproof, the characteristic such as wear-resisting, extend the service life of screen cloth.
Compared with prior art, the beneficial effects of the utility model are:
The utility model structure is simple, reasonable in design, the utility model effectively can solve the problem of blocking sieve aperture, and sieve aperture mesh sheet is thickeied, inner screen adopts the stainless-steel sheet that 1mm is thick, outer screen adopts the stainless-steel sheet that 3mm is thick, effectively extends the service life of screen cloth.Adopt Double-layer screen structure, greatly shorten the downtime changed screen cloth and cause with cleaning sieve aperture, improve dewaterer dewatering efficiency.
Accompanying drawing explanation
Fig. 1 is partial enlargement structural representation of the present utility model.
Fig. 2 is the arrangement of sieve apertures structural representation in the utility model inner screen and outer screen.
Fig. 3 is the utility model sieve aperture vertical section structure schematic diagram.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3, a kind of Anti-blocked screening net, comprises screen cloth and screen frame 3; Described screen cloth comprises inner screen 1 and outer screen 2, and described inner screen 1 and outer screen 2 are fixed on screen frame 3; Described inner screen 1 and outer screen 2 are respectively equipped with a plurality of sieve aperture 4, and this plurality of sieve aperture 4 is arranged in equal equilateral triangle respectively in inner screen 1 and outer screen 2; It is horn-like that the longitudinal section of described each sieve aperture 4 is positioned at entrance point 41 place, and be positioned at middle 42 in cylindric, it is horn-like for being positioned at the port of export 43 place.Namely the sieve aperture of the side of sieve aperture 4 is large, and middle sieve aperture is little, and opposite side sieve aperture is large.
The diameter that described each sieve aperture 4 is positioned at entrance point 41 place is greater than the diameter of middle 42, and the diameter that sieve aperture 4 is positioned at entrance point 41 place is less than the diameter at the port of export 43 place.
The side wall angle that described sieve aperture 4 longitudinal section is positioned at entrance point 41 place is 10 ° ~ 25 °.
The side wall angle that described sieve aperture 4 longitudinal section is positioned at the port of export 43 place is 12 ° ~ 28 °.
The sieve diameter of described outer screen 2 is greater than sieve aperture 4 diameter of described inner screen 1, and the thickness of described outer screen 2 is greater than the thickness of described inner screen 1.
After inner screen 1 and outer screen 2 machine, be rolled into tubular, the larger entrance point 41 of sieve aperture 4 diameter, in inboard, contacts with material, and the larger port of export 43 of sieve aperture 4 diameter is in outside, easily overboard, and the diameter of middle 42 is 1.5mm.During dewaterer work, material enters dewaterer, under the extruding of helical axis, water in material enters from sieve aperture 4 upper inlet end 41, spray from the port of export 43 sieve aperture 4 through middle 42, complete the dewatering work of dewaterer, be conducive to pulp, efficiently solve the problem of blocking sieve aperture, make overboard efficiency obtain larger raising.
Described inner screen 1 and outer screen 2 are fixed on screen frame 3 by pressing plate 5 and trip bolt 6.Described pressing plate 5, trip bolt 6 and screen frame 3 all adopt stainless steel to make, and have acidproof, alkaline-resisting, heatproof, the characteristic such as wear-resisting, extend the service life of screen cloth.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. an Anti-blocked screening net, comprises screen cloth and screen frame; It is characterized in that: described screen cloth comprises inner screen and outer screen, described inner screen and outer screen are fixed on screen frame; Described inner screen and outer screen are respectively equipped with a plurality of sieve aperture, and this plurality of sieve aperture is arranged in equal equilateral triangle respectively in inner screen and outer screen; It is horn-like that the longitudinal section of described each sieve aperture is positioned at entrance point place, and it is cylindric for being positioned at middle, and it is horn-like for being positioned at port of export place.
2. a kind of Anti-blocked screening net according to claim 1, is characterized in that: the diameter that described each sieve aperture is positioned at entrance point place is greater than the diameter of middle, and the diameter that sieve aperture is positioned at entrance point place is less than the diameter at port of export place.
3. a kind of Anti-blocked screening net according to claim 1, is characterized in that: the side wall angle that described sieve aperture longitudinal section is positioned at entrance point place is 10 ° ~ 25 °.
4. a kind of Anti-blocked screening net according to claim 1, is characterized in that: the side wall angle that described sieve aperture longitudinal section is positioned at port of export place is 12 ° ~ 28 °.
5. a kind of Anti-blocked screening net according to claim 1, is characterized in that: the sieve diameter of described outer screen is greater than the sieve diameter of described inner screen, and the thickness of described outer screen is greater than the thickness of described inner screen.
6. a kind of Anti-blocked screening net according to claim 1, is characterized in that: described inner screen and outer screen are fixed on screen frame by pressing plate and trip bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614421.9U CN204115452U (en) | 2014-10-23 | 2014-10-23 | Anti-blocked screening net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614421.9U CN204115452U (en) | 2014-10-23 | 2014-10-23 | Anti-blocked screening net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204115452U true CN204115452U (en) | 2015-01-21 |
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ID=52332753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614421.9U Expired - Fee Related CN204115452U (en) | 2014-10-23 | 2014-10-23 | Anti-blocked screening net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204115452U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105454393A (en) * | 2016-01-12 | 2016-04-06 | 中国农业科学院农产品加工研究所 | Separating screen drum of bone and meat separator |
| CN107441982A (en) * | 2017-08-10 | 2017-12-08 | 浙江恒成硬质合金有限公司 | A kind of manual plus wax mixing arrangement for tungsten carbide particle |
| CN107649014A (en) * | 2017-08-14 | 2018-02-02 | 浙江恒成硬质合金有限公司 | It is a kind of to add wax mixing arrangement for tungsten carbide particle |
| CN110548674A (en) * | 2019-10-14 | 2019-12-10 | 湖北枝江峡江矿山机械有限责任公司 | Linear vibration dewatering screening machine core for sand and stone |
-
2014
- 2014-10-23 CN CN201420614421.9U patent/CN204115452U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105454393A (en) * | 2016-01-12 | 2016-04-06 | 中国农业科学院农产品加工研究所 | Separating screen drum of bone and meat separator |
| CN105454393B (en) * | 2016-01-12 | 2018-03-02 | 中国农业科学院农产品加工研究所 | The separation screen drum of deboner |
| CN107441982A (en) * | 2017-08-10 | 2017-12-08 | 浙江恒成硬质合金有限公司 | A kind of manual plus wax mixing arrangement for tungsten carbide particle |
| CN107649014A (en) * | 2017-08-14 | 2018-02-02 | 浙江恒成硬质合金有限公司 | It is a kind of to add wax mixing arrangement for tungsten carbide particle |
| CN110548674A (en) * | 2019-10-14 | 2019-12-10 | 湖北枝江峡江矿山机械有限责任公司 | Linear vibration dewatering screening machine core for sand and stone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |