CN102872626A - Sieve-bend screen capable of increasing effective area of screen surfaces - Google Patents
Sieve-bend screen capable of increasing effective area of screen surfaces Download PDFInfo
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- CN102872626A CN102872626A CN2012103965905A CN201210396590A CN102872626A CN 102872626 A CN102872626 A CN 102872626A CN 2012103965905 A CN2012103965905 A CN 2012103965905A CN 201210396590 A CN201210396590 A CN 201210396590A CN 102872626 A CN102872626 A CN 102872626A
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Abstract
The invention discloses a sieve-bend screen capable of increasing the effective area of screen surfaces, belongs to the technical field of sieve-bend screen equipment, and aims to effectively improve the treating capacity and the screening efficiency of the sieve-bend screen. The technical scheme is that the sieve-bend screen consists of a feeding box, a screen box, a support, an upper screen surface, a lower screen surface, a steel pipe supporting plate and treadle bars, wherein the bottom of the screen box is arranged on the support; the arc-shaped upper screen surface and the arc-shaped lower screen surface are arranged in the screen box; the upper screen surface and the lower screen surface are arranged in parallel up and down; the lower end of the upper screen surface is connected with the upper end of the lower screen surface, and the connection part is supported by the steel pipe supporting plate; the two sides of the upper screen surface and the lower screen surface are fixed on two sides of the screen box through the treadle bars; the feeding box is positioned above the screen box; a discharge port of the feeding box is opposite to the upper screen surface; and a discharge port is formed on the lower part of the screen box. On the premise that equal width, equal wrap angle and equal separation size are not changed, a screen surface is additionally arranged on the sieve-bend screen to improve the treating capacity and the screening efficiency, so that the sieve-bend screen has the advantages of simple structure, convenience for replacement of a screen, high treating capacity and high screening efficiency, and the using effect is remarkable.
Description
Technical field
The present invention relates to a kind of sieve bend for Slurry Granularity being carried out predrainage, desliming and de-mediated, belong to the sieve bend equipment technical field.
Background technology
At present, sieve bend has become in the coal separation field visual plant in pre-desliming, dehydration and the de-mediated equipment, and its efficiency directly affects the efficient of its follow-up equipment, and the quality of final products is played key effect.The desliming, dehydration and the de-mediated efficient that how to improve sieve bend are the focuses that people pay close attention to always.Under the certain prerequisite of sieve bend delivery rate, partition size, the factor that affects the sieve bend operating efficiency may be summarized to be: compass screen surface width, radius of curvature, cornerite, partition size, cover surface and percent opening.
Sieve wide: sieve wide increase and make undoubtedly the most direct way of increase cover surface, compass screen surface width treating capacity also can increase.But for any one production technology, always have the restriction of its maximum, can not unlimited widening, sieve simultaneously wide larger, for being difficult to ensure for the even pan feeding of compass screen surface.It seems at present, the sieve bend in all coal separation fields about 4.0m sieves the wide wider rank that belonged to.
Radius of curvature: radius of curvature is larger, also is the direct method that increases cover surface, increases material in the compass screen surface time of staying, improves screening efficiency, and using at present more radius of curvature is 2.03m.
The compass screen surface cornerite: choosing of sieve bend cornerite mainly contains 45 degree, 53 degree and 60 degree in the coal separation field at present, and cornerite is larger, and cover surface is larger, increases material in the compass screen surface time of staying, and then improves the sieve bend screening efficiency.
Partition size (sieve seam size): for sieve bend, partition size is larger, and screening efficiency and treating capacity are just larger, but considers that whole system keeps balance and user's economic interests, and the increase that partition size can not be simply will have oneself the upper limit.
Summary of the invention
Technical problem to be solved by this invention provides a kind of sieve bend that can increase considerably the compass screen surface effective area under equal width, equal cornerite, equal partition size prerequisite.
The technical scheme that solves the problems of the technologies described above is:
A kind of sieve bend that can increase the compass screen surface effective area, include hopper in its formation, screen box, support, upper compass screen surface, lower compass screen surface, the steel pipe supporting plate, press strip, the screen box bottom is rack-mount, upper compass screen surface and the lower compass screen surface of arc are installed in the screen box, upper compass screen surface and lower compass screen surface are arranged in parallel up and down, the lower end of upper compass screen surface is connected with the upper end of lower compass screen surface, the junction is supported by the steel pipe supporting plate, the both sides of upper compass screen surface and lower compass screen surface are fixed on the both sides of screen box by press strip, feed box is positioned at the top of screen box, the discharge gate of feed box is relative with upper compass screen surface, in the bottom of screen box discharge gate is arranged.
The above-mentioned sieve bend that can increase the compass screen surface effective area, the top of described screen box is equipped with the adjustment cover plate, the adjustment cover plate is rectangle, laterally be placed on the top of the joint portion of compass screen surface and lower compass screen surface, the two ends of adjusting cover plate are connected with upper end, screen box two sides, and adjusting has the rotating shaft of adjusting angle on the cover plate.
The above-mentioned sieve bend that can increase the compass screen surface effective area, the steel plate surface of described steel pipe supporting plate are circular-arc, and the upper end of the lower end of upper compass screen surface and lower compass screen surface is connected with the two ends of the circular arc steel plate surface of steel pipe supporting plate respectively.
The above-mentioned sieve bend that can increase the compass screen surface effective area, the bottom of described lower compass screen surface exhaust end increases the discharge steel plate.
The invention has the beneficial effects as follows:
The present invention ensures material in the compass screen surface time of staying by increasing a sieve bend compass screen surface, and then improves treating capacity under the constant prerequisite of equal width, equal cornerite, equal partition size.The present invention is simple in structure, screen cloth is changed conveniently, treating capacity is large, screening efficiency is high, result of use is remarkable, is to the useful improvement of existing sieve bend, and the value of applying is arranged.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the side view of Fig. 1.
Mark is as follows among the figure: feed box 1, screen box 2,3, upper compass screen surface 4, lower compass screen surface 5, steel pipe supporting plate 6, adjust cover plate 7, press strip 8, discharge gate 9, discharge steel plate 10.
The specific embodiment
The present invention is comprised of feed box 1, screen box 2, support 3, upper compass screen surface 4, lower compass screen surface 5, steel pipe supporting plate 6, adjustment cover plate 7, press strip 8.
Show among the figure, screen box 2 bottoms are installed on the support 3, install compass screen surface 4 and lower compass screen surface 5 in the screen box 2, guarantee the treatment effect of screening plant by two compass screen surfaces.
Show among the figure, upper compass screen surface 4 and lower compass screen surface 5 are the arc compass screen surface, they are arranged in parallel up and down, the lower end of upper compass screen surface 4 is connected with the upper end of lower compass screen surface 5, the junction is supported by steel pipe supporting plate 6, steel plate on the steel pipe supporting plate 6 will be made into circular-arc, to guarantee upper compass screen surface 4 and the 5 junction smooth transitions of lower compass screen surface.The both sides of upper compass screen surface 4 and lower compass screen surface 5 are fixed on the both sides of screen box 2 by press strip 8.
Show among the figure, feed box 1 is positioned at the top of screen box 2, and the discharge gate of feed box 1 is relative with upper compass screen surface 4.
Show among the figure, for the on-the-sieve material that guarantees upper compass screen surface 4 enters lower compass screen surface 5 smoothly, increased adjustment cover plate 7, adjusting cover plate 7 is rectangle, laterally be placed on the top of the joint portion of compass screen surface 4 and lower compass screen surface 5, the two ends of adjusting cover plate 7 are connected with upper end, screen box 2 two sides.Be unlikely to materials from spattering in order to make more amount enter lower compass screen surface 5, adjusting has the rotating shaft of adjusting angle on the cover plate, adjust cover plate 7 angles and can regulate.
Show in the bottom of screen box 2 discharge gate 9 is arranged among the figure, discharge smoothly screen box 2 in order to guarantee undersize material, 9 of screen box 2 is discharged, and undersize material do not occur and returns phenomenon through lower compass screen surface 5 exhaust ends, increases discharge steel plate 10 in the bottom of lower compass screen surface 5 exhaust ends.
Cornerite can be different on two compass screen surfaces of upper compass screen surface 4 of the present invention and lower compass screen surface 5.
The course of work of the present invention is as follows:
Material at first enters the upper compass screen surface 4 of screen box 2 during work by feed box 1, material on the sieve of upper compass screen surface 4 enters lower compass screen surface 5 rear discharges by adjusting stopping of cover plate 7, through upper compass screen surface 4 with after undersize material after lower compass screen surface 5 filters mixes by discharge gate 9 discharges of screen box 2, the discharge steel plate 10 of screen box 2 can guarantee that minus mesh can not appear at the discharge end of lower compass screen surface 5, and returning charge is discharged rapidly.
Claims (4)
1. sieve bend that can increase the compass screen surface effective area, it is characterized in that: include hopper (1) in its formation, screen box (2), support (3), upper compass screen surface (4), lower compass screen surface (5), steel pipe supporting plate (6), press strip (8), screen box (2) bottom is installed on the support 3, upper compass screen surface (4) and the lower compass screen surface (5) of arc are installed in the screen box (2), upper compass screen surface (4) and lower compass screen surface (5) are arranged in parallel up and down, the lower end of upper compass screen surface (4) is connected with the upper end of lower compass screen surface (5), the junction is supported by steel pipe supporting plate (6), the both sides of upper compass screen surface (4) and lower compass screen surface (5) are fixed on the both sides of screen box (2) by press strip (8), feed box (1) is positioned at the top of screen box (2), the discharge gate of feed box (1) is relative with upper compass screen surface (4), in the bottom of screen box (2) discharge gate (9) is arranged.
2. the sieve bend that can increase the compass screen surface effective area according to claim 1, it is characterized in that: the top of described screen box (2) is equipped with adjusts cover plate (7), adjusting cover plate (7) is rectangle, laterally be placed on the top of the joint portion of compass screen surface (4) and lower compass screen surface (5), the two ends of adjusting cover plate (7) are connected with upper end, screen box (2) two sides, and adjusting has the rotating shaft of adjusting angle on the cover plate (7).
3. the sieve bend that can increase the compass screen surface effective area according to claim 1 and 2, it is characterized in that: the steel plate surface of described steel pipe supporting plate (6) is circular-arc, and the upper end of the lower end of upper compass screen surface (4) and lower compass screen surface (5) is connected with the two ends of the circular arc steel plate surface of steel pipe supporting plate (6) respectively.
4. the sieve bend that can increase the compass screen surface effective area according to claim 3 is characterized in that: the bottom increase discharge steel plate (10) of described lower compass screen surface (5) exhaust end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103965905A CN102872626A (en) | 2012-10-18 | 2012-10-18 | Sieve-bend screen capable of increasing effective area of screen surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103965905A CN102872626A (en) | 2012-10-18 | 2012-10-18 | Sieve-bend screen capable of increasing effective area of screen surfaces |
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| Publication Number | Publication Date |
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| CN102872626A true CN102872626A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103965905A Pending CN102872626A (en) | 2012-10-18 | 2012-10-18 | Sieve-bend screen capable of increasing effective area of screen surfaces |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499149A (en) * | 2018-12-24 | 2019-03-22 | 新乡市新平航空机械有限公司 | A kind of adjustable feed system of sieve bend |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577981Y (en) * | 2002-11-13 | 2003-10-08 | 新汶矿业集团有限责任公司华丰煤矿洗选厂 | High frequency excited vibration screen for recovering fine coal from coal dust water in coal washery |
| CN201531230U (en) * | 2009-05-22 | 2010-07-21 | 濮阳市中原锐实达石油设备有限公司 | Double liquid pool balanced elliptical drilling fluid vibrating screen |
| CN202844678U (en) * | 2012-10-18 | 2013-04-03 | 天地（唐山）矿业科技有限公司 | Arc-shaped sieve capable of enlarging effective area of sieve surface |
-
2012
- 2012-10-18 CN CN2012103965905A patent/CN102872626A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577981Y (en) * | 2002-11-13 | 2003-10-08 | 新汶矿业集团有限责任公司华丰煤矿洗选厂 | High frequency excited vibration screen for recovering fine coal from coal dust water in coal washery |
| CN201531230U (en) * | 2009-05-22 | 2010-07-21 | 濮阳市中原锐实达石油设备有限公司 | Double liquid pool balanced elliptical drilling fluid vibrating screen |
| CN202844678U (en) * | 2012-10-18 | 2013-04-03 | 天地（唐山）矿业科技有限公司 | Arc-shaped sieve capable of enlarging effective area of sieve surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499149A (en) * | 2018-12-24 | 2019-03-22 | 新乡市新平航空机械有限公司 | A kind of adjustable feed system of sieve bend |
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Application publication date: 20130116 |