CN103316842A - Multistage screening machine - Google Patents
Multistage screening machine Download PDFInfo
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- CN103316842A CN103316842A CN2013103054263A CN201310305426A CN103316842A CN 103316842 A CN103316842 A CN 103316842A CN 2013103054263 A CN2013103054263 A CN 2013103054263A CN 201310305426 A CN201310305426 A CN 201310305426A CN 103316842 A CN103316842 A CN 103316842A
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Abstract
The invention discloses a multistage screening machine which comprises screening units. The multistage screening machine comprises N stages of screening units and a conveyor, wherein the conveyor is used for conveying a material flowing out of a rear discharge outlet of each stage of screening unit back to a feeding chamber of the previous stage or first stage of screening unit, a front discharge outlet of the screening unit previous to each screening unit is connected with a feed inlet of the next stage of screening unit, and N is a positive integer greater than or equal to 2. According to the invention, a single screening machine in the prior art is used as a screening unit, multiple screening units constitute a multistage screening machine through clever design, so that the multiple screening for a material is realized, thereby significantly improving the screening effect of chorionic villi; the multistage screening machine has the advantages of small amount of labor, and high production efficiency.
Description
Technical field
The invention belongs to the making herbs into wool industry, be specifically related to a kind of multistage screening machine for the used fine hair of screening electrostatic spinning.
Background technology
Electrostatic spinning is a kind of processing technology of utilizing the ionized physical phenomenon to carry out the flocking of implements surfaces, advantage such as it has the productivity ratio height, cost is low, designs and varieties are many, adaptation face width and be widely used in multiple industry.And the used fine hair of electrostatic spinning is handled, is dried and make through cutting, dyeing by fibre bundle, but because can there be certain deviation in the fine hair length that cuts out, the fine hair after the oven dry all will just can use through screening usually.
The general screening machine that uses mainly is made up of charging aperture, feeding material chamber, feeding screw, screen cloth, scraper plate etc. at present, during its work, the material of needs screening is dropped into feeding material chamber from charging aperture, send screen cloth to by feeding screw then, stir through the scraper plate rotation, short material sees through the mesh discharging opening outflow in the past of screen cloth, and long material flows out from the back discharging opening, and this has just finished the screening work of fine hair.But because fine hair is fibre strip, volume is little, has the long fine hair of part and vertically pass sieve screen apertures with the discharging opening outflow in the past of short fine hair in screening process; The fine hair that also has simultaneously the short fine hair of part and length mixes and flows out from the back discharging opening, has influenced the screening effect of fine hair so greatly, and then has influenced the quality of electrostatic spinning product.For solving this defective, prior art all is by artificial operation the fine hair that preceding discharging opening and back discharging opening sieve out for the first time to be sieved or repeatedly screening again, so not only labour intensity big, waste time and energy, also reduced production efficiency.
Summary of the invention
At above-mentioned deficiency, technical problem to be solved by this invention provides a kind of screening effect that can significantly improve fine hair, can reduce the amount of labour and can enhance productivity again, multistage screening machine simple to operate.
For addressing the above problem, the present invention is achieved through the following technical solutions:
A kind of multistage screening machine, comprise the screening unit, described screening unit comprises casing, described casing be provided with charging aperture and before, back discharging opening, be provided with power transmission shaft in the casing, feeding screw and scraper plate, described feeding screw and scraper plate axially are installed on the power transmission shaft along power transmission shaft, and the chamber at feeding screw place is feeding material chamber, the top of described feeding material chamber is charging aperture, the described scraper plate outside is with cylindric screen cloth, described screen cloth is connected with the casing wall body, discharging opening is arranged at the below of screen cloth before described, described back discharging opening is arranged at the end of scraper plate, described multistage screening machine comprises N level screening unit, the material that flows out with the back discharging opening that is used for screenings at different levels unit returns to the conveyer of the feeding material chamber of upper level or first order screening unit, the preceding discharging opening that described screening unit higher level screens the unit is connected with the charging aperture that the unit screens in subordinate, and described N is 〉=2 positive integer.
In the such scheme, described conveyer is 1, and the back discharging opening of the 2nd～N level screening unit is connected with conveyer respectively, and sends the feeding material chamber of first order screening unit back to by the material that described conveyer flows out the back discharging opening.
In the such scheme, described conveyer is the N-1 platform, and the material that the back discharging opening of screenings at different levels unit flows out is sent the feeding material chamber of upper level screening unit back to by conveyer.
In the such scheme, further, the N of described N level screening unit is 4 o'clock, the back discharging opening of third and fourth grade of screening unit is connected with a conveyer respectively, and the material that this conveyer will the back discharging opening flows out is sent the feeding material chamber that the back discharging opening of the feeding material chamber of screening unit, the second level and screening unit, the second level screens the unit by another conveyer and the first order back to and is connected.
In the such scheme, can be provided with on the described conveyer for the compressed air valve that adheres to fine hair on the cleaning conveyer delivered inside part.
In the such scheme, the screening component that the screenings at different levels unit of described multistage screening machine can have described casing independently or screenings at different levels unit is installed in the housing of a sealing, described housing vertically is divided into several districts, the one-level screening component is installed in each district, each district has charging aperture, feeding material chamber and forward and backward discharging opening separately respectively, and described screening component comprises feeding screw, screen cloth and scraper plate.
In the such scheme, the span of described N can be the positive integer of 2≤N＜5.
Beneficial effect of the present invention is:
The present invention with the single screening machine of prior art as the screening unit, by designing cleverly the multistage screening machine is formed in a plurality of screenings unit, realized the repeatedly screening to material, improve the screening effect of fine hair significantly, solve present screening machine and needed the artificial shortcoming that material is repeated repeatedly to sieve, not only reduce the amount of labour, also improved production efficiency greatly.
Description of drawings
Fig. 1 is the structural representation of existing screening machine.
Fig. 2 is a kind of embodiment structural representation of multistage screening machine of the present invention.
Fig. 3 is the another kind of embodiment structural representation of multistage screening machine of the present invention.
Fig. 4 is the third embodiment structural representation of multistage screening machine of the present invention.
Fig. 5 is a kind of structural representation of invention multistage screening machine of the present invention.
Number in the figure is: 1, casing; 2, feeding screw; 3, charging aperture; 4, screen cloth; 5, scraper plate; 6, preceding discharging opening; 7, back discharging opening; 8, power transmission shaft; 9, baffle plate; 10, feeding material chamber; 11, compressed air valve; 12, the charging aperture of first order screening unit; 13, the feeding material chamber of first order screening unit; 14, the preceding discharging opening of first order screening unit; 15, the back discharging opening of first order screening unit; 16, the feeding material chamber of second level screening unit; 17, the back discharging opening of second level screening unit; 18, the preceding discharging opening of second level screening unit; 19, the feeding material chamber of third level screening unit; 20, the back discharging opening of third level screening unit; 21, the preceding discharging opening of third level screening unit; 22, the preceding discharging opening of fourth stage screening unit; 23, first conveyer; 24, second conveyer.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further explained explanation, but does not limit the present invention.
A kind of multistage screening machine, comprise the screening unit, as shown in Figure 1, described screening unit comprises casing 1, this casing 1 be provided with charging aperture 3 and before, back discharging opening, be provided with power transmission shaft 8 in the casing 1, feeding screw 2 and scraper plate 5, described feeding screw 2 and scraper plate 5 axially are installed on the power transmission shaft 8 along power transmission shaft 8, and the chamber at feeding screw 2 places is feeding material chamber 10, the top of described feeding material chamber 10 is charging aperture 3, described scraper plate 5 outsides are with cylindric screen cloth 4, described screen cloth 4 is connected with casing 1 wall body, and described preceding discharging opening 6 is arranged at the below of screen cloth 4, and described back discharging opening 7 is arranged at the end of scraper plate 5, also be provided with a baffle plate 9 in scraper plate 5 ends on the described power transmission shaft 8, described baffle plate 9 has the gap with screen cloth 4 inboards.Material enters through feeding screw 2 transmissions from charging aperture 3 and delivers to scraper plate 5, again through the screening of scraper plate 5 and screen cloth 4, then the preceding discharging opening 6 that is provided with from the below of screen cloth 4 of short material flows out, the surplus material flows out from baffle plate 9 and the slit that screen cloth 4 forms, and flows out from back discharging opening 7 at last, wherein
Described multistage screening machine comprises N level screening unit, and wherein N can be 2,3,4 ... positive integer Deng 〉=2, namely described multistage screening machine is two-stage or the above multistage screening machine of two-stage.When N was 2, namely described multistage screening machine was the two-stage screening machine, and screening effect is remarkable inadequately; When N＞4, be that described multistage screening machine is when being multistage screening machine more than 4 grades, its screening effect highly significant, but equipment volume is too big, consumes energy is big, and the fine hair of some kinds, specification does not need screening so repeatedly yet, in sum, described multistage screening machine is preferably 3 grades of screening machines, not only screening effect is remarkable for it, and simultaneously required equipment is uncomplicated, consumes energy is low, can produce favorable economic benefit.
Described multistage screening machine adopts existing many single-stage screening machines, as shown in Figure 1, and the combination of many single-stage screening machines installed forms, and wherein existing single-stage screening machine is screening of the present invention unit.When multistage screening machine of the present invention was installed, screenings at different levels unit independently was equipped with described casing 1, and the preceding discharging opening that the higher level screens the unit is connected with the charging aperture that the unit screens in subordinate, the conveyer of convey materials is installed as required again, shown in Fig. 2～4.When described multistage screening unit is installed, also the screening component of screenings at different levels unit can be installed in the housing of a sealing, this housing vertically is divided into several districts, the one-level screening component is installed in each district, each district has charging aperture, feeding material chamber and forward and backward discharging opening separately respectively, described screening component comprises feeding screw 1, screen cloth 4 and scraper plate 5, as shown in Figure 5.
As shown in Figure 2, the three level screen machine that described multistage screening machine is made up of 3 screening unit, the undercoat discharging opening of this three level screen machine are the preceding discharging opening 21 of third level screening unit, and its discharging opening that becomes mildewed is the back discharging opening 15 of first order screening unit.Wherein the preceding discharging opening 14 of first order screening unit is connected with the charging aperture of screening unit, the second level, the preceding discharging opening 18 of screening unit, the second level is connected with the charging aperture of third level screening unit, the back discharging opening of the second level, third level screening unit is connected with conveyer respectively, and sends the feeding material chamber 13 of first order screening unit back to by the material that conveyer flows out the back discharging opening.Wherein, described conveyer is provided with for the compressed air valve 11 that adheres to fine hair on the cleaning conveyer delivered inside part.
Its operation principle is: at first, material enters feeding material chamber from the charging aperture 12 of first order screening unit, feeding screw 2 through first order screening unit, after the screening of screen cloth 4 and scraper plate 5, short material flows out from the preceding discharging opening 14 of first order screening unit, charging aperture through screening unit, the second level enters the feeding material chamber 16 of screening unit, the second level, carry out the screening second time, the material that the preceding discharging opening 18 of screening unit, the second level flows out enters the feeding material chamber 19 of third level screening unit again, sieve for the third time, what flow out from the preceding discharging opening 21 of third level screening unit is exactly short material through three screenings, and the surplus material screens back discharging opening 15 outflows of unit from the first order.Second and the material that flows out of the back discharging opening of third level screening unit send the feeding material chamber 13 of first order screening unit back to by conveyer, with new material by first order screening unit screening.
As shown in Figure 3, described multistage screening machine is the three level screen machine, and the undercoat discharging opening of this three level screen machine is the preceding discharging opening 21 of third level screening unit, and its discharging opening that becomes mildewed is the back discharging opening 15 of first order screening unit.Wherein the preceding discharging opening 14 of first order screening unit is connected with the charging aperture of screening unit, the second level, the preceding discharging opening 18 of screening unit, the second level is connected with the charging aperture of third level screening unit, and the material that the back discharging opening 17 of screening unit, the second level flows out is sent the feeding material chamber 13 of first order screening unit back to by first conveyer 23; The material that the back discharging opening 20 of third level screening unit flows out by second conveyer 24 send back to screening unit, the second level feeding material chamber 16.Described conveyer is provided with for the compressed air valve 11 that adheres to fine hair on the cleaning conveyer delivered inside part.
Its operation principle is: at first, material enters feeding material chamber from the charging aperture 12 of first order screening unit, and after the screening of first order screening unit, short material enters screening unit, the second level from the preceding discharging opening 14 of first order screening unit, carries out the screening second time; The material that the preceding discharging opening 18 of screening unit, the second level flows out enters third level screening unit again, sieves for the third time; What flow out from the preceding discharging opening 21 of third level screening unit is exactly short material through three screenings, and the surplus material screens back discharging opening 15 outflows of unit from the first order.The material that the back discharging opening 17 of screening unit, the second level flows out is sent the feeding material chamber 13 that the first order is screened the unit back to by first conveyer 23, is sieved by first order screening unit with new material; The material that the back discharging opening 20 of third level screening unit flows out is sent the feeding material chamber 16 of screening unit, the second level back to by second conveyer 24, the material that screens the charging aperture inflow of unit with the second level is sieved by screening unit, the second level, constantly circulates with this and carries out screening work.
As shown in Figure 4, the level Four screening machine that described multistage screening machine is made up of 4 screening unit, the undercoat discharging opening of this level Four screening machine are the preceding discharging opening 22 of fourth stage screening unit, and its discharging opening that becomes mildewed is the back discharging opening 15 of first order screening unit.Wherein the preceding discharging opening 14 of first order screening unit is connected with the charging aperture of screening unit, the second level, the preceding discharging opening 18 of screening unit, the second level is connected with the charging aperture of third level screening unit, the preceding discharging opening 21 of third level screening unit is connected with the charging aperture of fourth stage screening unit, the material that the back discharging opening of the third level, fourth stage screening unit flows out is sent the feeding material chamber 16 that the unit is screened in the second level back to by same conveyer, and the back discharging opening 17 of screening unit, the second level is connected by the feeding material chamber 13 of another conveyer with first order screening unit.Wherein said conveyer is provided with for the compressed air valve 11 that adheres to fine hair on the cleaning conveyer delivered inside part.
Its operation principle is: at first, material enters feeding material chamber from the charging aperture 12 of first order screening unit, after the screening of first order screening unit, short material enters screening unit, the second level from the preceding discharging opening 14 of first order screening unit, carry out the screening second time, the material that the preceding discharging opening 18 of screening unit, the second level flows out enters third level screening unit again, sieve for the third time, the material that the preceding discharging opening 21 of third level screening unit flows out enters fourth stage screening unit again, carry out the 4th screening, what flow out from the preceding discharging opening 22 of fourth stage screening unit is exactly short material through four screenings, and the surplus material screens back discharging opening 15 outflows of unit from the first order.The material that the back discharging opening of the third level and fourth stage screening unit flows out is sent screening unit, the second level back to by conveyer, sieved by screening unit, the second level with new material, and the material that the back discharging opening 17 that screens the unit from the second level flows out is sent the feeding material chamber 13 that the first order is screened the unit back to by another conveyer, is sieved by screening unit, the second level with new material.
Claims (7)
1. multistage screening machine, comprise the screening unit, described screening unit comprises casing (1), described casing (1) be provided with charging aperture (3) and before, back discharging opening, be provided with power transmission shaft (8) in the casing (1), feeding screw (2) and scraper plate (5), described feeding screw (2) and scraper plate (5) axially are installed on the power transmission shaft (8) along power transmission shaft (8), and the chamber at feeding screw (2) place is feeding material chamber (10), the top of described feeding material chamber (10) is charging aperture (3), described scraper plate (5) outside is with cylindric screen cloth (4), described screen cloth (4) is connected with casing (1) wall body, discharging opening (6) is arranged at the below of screen cloth (4) before described, described back discharging opening (7) is arranged at the end of scraper plate (5), it is characterized in that: described multistage screening machine comprises N level screening unit, the material that flows out with the back discharging opening that is used for screenings at different levels unit returns to the conveyer of the feeding material chamber of upper level or first order screening unit, the preceding discharging opening that described screening unit higher level screens the unit is connected with the charging aperture that the unit screens in subordinate, and described N is 〉=2 positive integer.
2. multistage screening machine according to claim 1, it is characterized in that: described conveyer is 1, the back discharging opening of the 2nd～N level screening unit is connected with conveyer respectively, and sends the feeding material chamber (13) of first order screening unit back to by the material that described conveyer flows out the back discharging opening.
3. multistage screening machine according to claim 1, it is characterized in that: described conveyer is the N-1 platform, the material that the back discharging opening of screenings at different levels unit flows out is sent the feeding material chamber of upper level screening unit back to by conveyer.
4. multistage screening machine according to claim 1, it is characterized in that: the N of described N level screening unit is 4 o'clock, the back discharging opening of third and fourth grade of screening unit is connected with a conveyer respectively, the material that this conveyer will the back discharging opening flows out is sent the feeding material chamber (16) of screening unit, the second level back to, and the feeding material chamber (13) that the back discharging opening (17) of screening unit, the second level screens the unit by another conveyer and the first order is connected.
5. according to the described multistage screening machine of claim 1～4, it is characterized in that: described conveyer is provided with for the compressed air valve (9) that adheres to fine hair on the cleaning conveyer delivered inside part.
6. according to the described multistage screening machine of claim 1～4, it is characterized in that: the screening component that the screenings at different levels unit of described multistage screening machine has described casing (1) independently or screenings at different levels unit is installed in the housing of a sealing, described housing vertically is divided into several districts, the one-level screening component is installed in each district, each district has charging aperture, feeding material chamber and forward and backward discharging opening separately respectively, and described screening component comprises feeding screw (1), screen cloth (4) and scraper plate (5).
7. multistage screening machine according to claim 1, it is characterized in that: the span of described N is the positive integer of 2≤N＜5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310305426.3A CN103316842B (en) | 2013-07-19 | 2013-07-19 | A kind of Multi-stage screening machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310305426.3A CN103316842B (en) | 2013-07-19 | 2013-07-19 | A kind of Multi-stage screening machine |
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| CN103316842A true CN103316842A (en) | 2013-09-25 |
| CN103316842B CN103316842B (en) | 2015-08-05 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882562A (en) * | 2014-04-02 | 2014-06-25 | 中南林业科技大学 | Method for drying long bamboo fiber and separating dust and drying and dust separating device |
| CN104607390A (en) * | 2015-01-30 | 2015-05-13 | 高留中 | Classifying device for screening particle materials |
| CN104841636A (en) * | 2015-05-26 | 2015-08-19 | 福建省邵武德龙机械制造有限公司 | Combined type sieving machine |
| CN107469924A (en) * | 2017-09-21 | 2017-12-15 | 孙丽君 | A kind of sieving approach device for surface mining |
| CN107824419A (en) * | 2017-11-03 | 2018-03-23 | 安徽奥邦新材料有限公司 | A kind of screw feeding screening plant |
| CN108917342A (en) * | 2018-05-23 | 2018-11-30 | 牛瑞志 | A kind of wheat device for eliminating impurities of the agricultural production with drying function |
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| US6889846B2 (en) * | 2002-03-15 | 2005-05-10 | Johnson Crushers International | Hybrid screen |
| CN200939427Y (en) * | 2006-07-21 | 2007-08-29 | 王明皆 | Automatic return classifying screen |
| CN102698956A (en) * | 2012-06-19 | 2012-10-03 | 苏州博云塑业有限公司 | Material particle screening device for plastic extrusion granulation system |
| CN203408895U (en) * | 2013-07-19 | 2014-01-29 | 潘华斌 | Multi-stage screening machine |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889846B2 (en) * | 2002-03-15 | 2005-05-10 | Johnson Crushers International | Hybrid screen |
| CN200939427Y (en) * | 2006-07-21 | 2007-08-29 | 王明皆 | Automatic return classifying screen |
| CN102698956A (en) * | 2012-06-19 | 2012-10-03 | 苏州博云塑业有限公司 | Material particle screening device for plastic extrusion granulation system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882562A (en) * | 2014-04-02 | 2014-06-25 | 中南林业科技大学 | Method for drying long bamboo fiber and separating dust and drying and dust separating device |
| CN103882562B (en) * | 2014-04-02 | 2016-03-16 | 中南林业科技大学 | A kind of long bamboo fibre drying and dust separation method and dry and powder dust separating device |
| CN104607390A (en) * | 2015-01-30 | 2015-05-13 | 高留中 | Classifying device for screening particle materials |
| CN104841636A (en) * | 2015-05-26 | 2015-08-19 | 福建省邵武德龙机械制造有限公司 | Combined type sieving machine |
| CN107469924A (en) * | 2017-09-21 | 2017-12-15 | 孙丽君 | A kind of sieving approach device for surface mining |
| CN107469924B (en) * | 2017-09-21 | 2018-11-06 | 泉州诺黎森贸易有限公司 | A kind of sieving approach device for surface mining |
| CN107824419A (en) * | 2017-11-03 | 2018-03-23 | 安徽奥邦新材料有限公司 | A kind of screw feeding screening plant |
| CN108917342A (en) * | 2018-05-23 | 2018-11-30 | 牛瑞志 | A kind of wheat device for eliminating impurities of the agricultural production with drying function |
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| CN103316842B (en) | 2015-08-05 |
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