CN203750832U - Novel hydraulic classification two-section arc screen - Google Patents
Novel hydraulic classification two-section arc screen Download PDFInfo
- Publication number
- CN203750832U CN203750832U CN201420085465.7U CN201420085465U CN203750832U CN 203750832 U CN203750832 U CN 203750832U CN 201420085465 U CN201420085465 U CN 201420085465U CN 203750832 U CN203750832 U CN 203750832U
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- Prior art keywords
- sieve
- sections
- compass screen
- screen surface
- section
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- Expired - Lifetime
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- 239000000463 material Substances 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012465 retentate Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010334 sieve classification Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model discloses a novel two sections curved sieves in hydraulic classification, including the sieve case, sieve case upper portion sets up the feed distributor box, and sieve incasement portion sets up the sieve bend face, the sieve bend face is one section sieve bend face and two-stage process sieve bend face respectively from top to bottom, and one section sieve bend face upper end links to each other with feed distributor box discharge gate, sets up middle material collecting vat between one section sieve bend face lower extreme and the two-stage process sieve bend face upper end, and middle material collecting vat bottom sets up the foraminiferous sieve of toper, and the foraminiferous sieve below of toper is connected rivers and is added the pipe, and the foraminiferous sieve center of toper sets up the underflow blow-off. The utility model discloses divide into two sections about the sifter to add between two sections sifters and establish middle material collecting vat, provide the ascending rivers of certain velocity of flow in middle material collecting vat, overcome traditional sieve bend because of material moisture is cut thoroughly rapidly and is influenced the shortcoming of transportation, can in time collect sifter detained the material, prevent long-pending material phenomenon, guarantee sifter effective utilization.
Description
Technical field
The utility model relates to technical field of mineral processing equipment, and especially a kind of disposal ability is large, screening efficiency is high, rely on ascending current to prevent the two-period form Novel screen separating device of solid accumulation.
Background technology
With compass screen surface with holes, mixed materials different granule size is divided into other operation of various particle size fractions and is called screening.Screening operation is widely used in the departments such as ore dressing, coal separation, building, chemical industry, light industry.According to the version of compass screen surface and forms of motion, conventional sieving machine can be divided into following several types both at home and abroad at present: gravity flow screen, rotary screen, vibratory sieve, screen centrifuge, flip flop screen etc.Wherein, sieve bend is the one of gravity flow screen, its simple structure, simple installation, the life-span is long, especially consumption of power not, there is no moving component, equipment cost and use cost are low, in screening operation, are widely used, and are mainly used in material dewatering, desliming, de-mediated, coal slime recovery of coal, metallurgy, chemical industry etc.Sieve bend compass screen surface is in the arc-shaped along oversize flow path direction, grating is vertical with oversize flow path direction, particular design and roll the wire forming on compass screen surface, in the direction contrary with Flow of Goods and Materials, have sharp keen cutting edge, these sharp keen cutting edges are conducive to cut moisture in material mobile from compass screen surface.Pan feeding ore pulp is tangentially delivered on compass screen surface through current divider box, slip forms a flat feed pulp layer, tightly be attached on compass screen surface and circle, the arris that feed pulp layer is sieved seam cuts, at centrifugal force with send under the acting in conjunction of slurry pressure, make fine component and water thoroughly after sieve, become undersized product through feed pulp layer and sieve seam.
But, there is following problem in conventional arched sieve: material can not be uniformly distributed in the time that current divider box bottom is given to sieve, and because compass screen surface the initial segment dissection is obvious, water in material sieves rapidly thoroughly, leftover materials transport property declines, cause solid accumulation phenomenon on compass screen surface, and then cause compass screen surface to stop up, have a strong impact on screening effect.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome the easily problem of accumulation of material that conventional arched sieve exists, and the Novel screen separating device that a kind of disposal ability is large, screening efficiency is high, dependence ascending current prevents solid accumulation is provided.
To achieve these goals, the utility model has adopted following technical scheme:
Two sections of sieve bends of a kind of novel hydropower classification, comprise screen box, screen box top arranges feed distributor box, screen box inside arranges arc compass screen surface, it is characterized in that: described arc compass screen surface is distinguished one section of arc compass screen surface and two sections of arc compass screen surfaces from top to bottom, one section of arc compass screen surface upper end is connected with feed distributor box discharging opening, between one section of arc compass screen surface lower end and two sections of arc compass screen surface upper ends, intermediate material feeder is set, intermediate material feeder bottom arranges taper slotted plate, taper slotted plate below connects current and adds pipe, taper slotted plate center arranges underflow blow-off valve, underflow blow-off valve is connected with discharge controller.
In the utility model, preferred, described intermediate material feeder notch arranges downflow weir near two sections of arc compass screen surface one sides.
In the utility model, preferred, described one section of arc compass screen surface lower end is connected with intermediate material feeder by blind plate, and blind plate vertical height is a little more than downflow weir.
In the utility model, preferred, described current are added flow control valve are set on pipe.
The utility model compared with prior art has following effect:
(1) compass screen surface is divided into two sections by the utility model, and between two sections of compass screen surfaces, add intermediate material feeder, the ascending current of certain flow rate is provided in intermediate material feeder, overcome conventional arched sieve and affected the shortcoming of transport because material moisture cuts rapidly saturating sieve, can collect in time compass screen surface retentate material, prevent buildup phenomenon, ensure compass screen surface effective rate of utilization, ascending current had both played transported material effect, make again material in groove that loose layering occurs, isolate in time coarse-grained material, the wearing and tearing of hypomere compass screen surface are effectively alleviated, and avoided coarse-grained material repeat screening, improve screening efficiency,
(2) intermediate material feeder provides the ascending current of adjustable flow velocity, material and current form relative motion, make this utility model and except thering is sieve classification effect, also have certain sorting, reduce the poor impact on screening process of material density, reduce tramp content, improve screening effect;
(3) intermediate material feeder notch arranges downflow weir near hypomere arc compass screen surface one side, epimere arc compass screen surface lower end is connected with intermediate material feeder by blind plate, blind plate vertical height is a little more than downflow weir, downflow weir can reduce the flow velocity of material on hypomere compass screen surface, increase material run duration, improve screening effect, avoid hypomere screening to cause and alter material because material flow is too fast simultaneously, improve discharging effect, blind plate can prevent material generation adverse current phenomenon, ensures that overflow all enters hypomere arc compass screen surface;
(4) compass screen surface is divided into two sections by the utility model, and between two sections of compass screen surfaces, material collection groove and downflow weir are set, and can suitably increase screen angle, both improved productivity ratio, reduce again sieve floor space, rationally utilized factory building space, be convenient to apparatus arrangement and maintenance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that A in Fig. 1 is to view.
In figure: 1-pan feeding conduit, 2-feed distributor box, 3-screen box, mono-section of arc compass screen surface of 4-, bis-sections of arc compass screen surfaces of 5-, 6-intermediate material feeder, 7-downflow weir, 8-current are added pipe, 9-flow control valve, 10-taper slotted plate, 11-blind plate, 12-discharge controller, 13-underflow blow-off valve, 14-support.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is done further and explained.
As illustrated in fig. 1 and 2, two sections of sieve bends of novel hydropower classification of the present utility model comprise feed distributor box 2, screen box 3 and support 14, and screen box 3 is arranged on support 14, and screen box 3 tops arrange feed distributor box 2, and feed distributor box 2 charging apertures are connected with pan feeding conduit 1.Screen box 3 inside arrange arc compass screen surface, arc compass screen surface is distinguished one section of arc compass screen surface 4 and two sections of arc compass screen surfaces 5 from top to bottom, one section of arc compass screen surface 4 upper end is connected with feed distributor box 2 discharging openings, between one section of arc compass screen surface 4 lower end and two sections of arc compass screen surface 5 upper ends, intermediate material feeder 6 is set.Intermediate material feeder 6 notches arrange 7, one sections of arc compass screen surface 4 lower ends of downflow weir near two sections of arc compass screen surface 5 one sides and are connected with intermediate material feeder 6 by blind plate 11, and blind plate 11 vertical heights are a little more than downflow weir 7.Intermediate material feeder 6 bottoms arrange taper slotted plate 10, taper slotted plate 10 belows connect current and add pipe 8, taper slotted plate 10 centers arrange underflow blow-off valve 13, underflow blow-off valve 13 valve bodies are inverted-cone shape, cone angle is 30 °～60 °, underflow blow-off valve 13 is connected with discharge controller 12, is controlled the switch of underflow blow-off valve 13 by discharge controller 12, realizes underflow discharge.
The course of work of the present utility model: the material feeding from pan feeding conduit 1 feeds along the tangential direction of one section of arc compass screen surface 4 of sieve bend with certain speed via feed distributor box 2, in the time flowing through one section of arc compass screen surface 4 of sieve bend, produce centrifugal force, under the acting in conjunction of centrifugal force, frictional force and gravity, done cutting movement by each Edge of screen bar, fine particle and water a large amount of in material become screenings through grating fast, one section of arc compass screen surface 4 lower end, material, because a large amount of sieve thoroughly of moisture transport property declines, is collected by intermediate material feeder 6 in time, add pipe 8 current that pass into by current and upwards enter intermediate material feeder 6 through taper slotted plate 10, and at the interior formation ascending current of intermediate material feeder 6, under the effect of ascending current, there is loose layering in the material of collecting in intermediate material feeder 6, the material that contains fine component rises with current and crosses downflow weir 7 and enters the 5 continuation screenings of two sections of arc compass screen surfaces, blind plate 11 can prevent material generation adverse current phenomenon, ensure that overflow all enters second segment arc compass screen surface 5, two sections of arc compass screen surface 5 undersize materials and one section of arc compass screen surface 4 undersize material are merged into as final undersized product, coarse grain component continues decline and discharged by bottom discharging mouth 13, then be merged into as product on finishing screen with two sections of arc compass screen surface 5 on-the-sieve materials, discharge controller 12 is controlled underflow blow-off valve 13 discharge velocities, and then two sections of arc compass screen surface 5 pan feeding stability of guarantee.
Utilize sieve bend device of the present utility model, can effectively prevent the packing phenomenon of material at compass screen surface, improve the effective rate of utilization of compass screen surface, improve screening efficiency, ensure screening effect.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. two sections of sieve bends of a novel hydropower classification, comprise screen box (3), screen box (3) top arranges feed distributor box (2), screen box (3) inside arranges arc compass screen surface, it is characterized in that: described arc compass screen surface is distinguished one section of arc compass screen surface (4) and two sections of arc compass screen surfaces (5) from top to bottom, one section of arc compass screen surface (4) upper end is connected with feed distributor box (2) discharging opening, between one section of arc compass screen surface (4) lower end and two sections of arc compass screen surfaces (5) upper end, intermediate material feeder (6) is set, intermediate material feeder (6) bottom arranges taper slotted plate (10), taper slotted plate (10) below connects current and adds pipe (8), taper slotted plate (10) center arranges underflow blow-off valve (13), underflow blow-off valve (13) is connected with discharge controller (12).
2. two sections of sieve bends of a kind of novel hydropower classification according to claim 1, is characterized in that: described intermediate material feeder (6) notch arranges downflow weir (7) near two sections of arc compass screen surfaces (5) one sides.
3. two sections of sieve bends of a kind of novel hydropower classification according to claim 2, it is characterized in that: described one section of arc compass screen surface (4) lower end is connected with intermediate material feeder (6) by blind plate (11), and blind plate (11) vertical height is a little more than downflow weir (7).
4. two sections of sieve bends of a kind of novel hydropower classification according to claim 1, is characterized in that: described current are added flow control valve (9) is set on pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085465.7U CN203750832U (en) | 2014-02-27 | 2014-02-27 | Novel hydraulic classification two-section arc screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085465.7U CN203750832U (en) | 2014-02-27 | 2014-02-27 | Novel hydraulic classification two-section arc screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203750832U true CN203750832U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085465.7U Expired - Lifetime CN203750832U (en) | 2014-02-27 | 2014-02-27 | Novel hydraulic classification two-section arc screen |
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| Country | Link |
|---|---|
| CN (1) | CN203750832U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817075A (en) * | 2014-02-27 | 2014-05-28 | 中国矿业大学 | Novel hydraulic classification two-section arc screen |
| CN104624478A (en) * | 2015-02-02 | 2015-05-20 | 太原理工大学 | Rotary drum screen |
| CN111094690A (en) * | 2017-07-12 | 2020-05-01 | 沙特阿拉伯石油公司 | Collection well microchip |
| CN117259196A (en) * | 2023-09-25 | 2023-12-22 | 四川沃耐稀新材料科技有限公司 | Lanthanum chloride cooling crystallization screening plant |
-
2014
- 2014-02-27 CN CN201420085465.7U patent/CN203750832U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817075A (en) * | 2014-02-27 | 2014-05-28 | 中国矿业大学 | Novel hydraulic classification two-section arc screen |
| CN104624478A (en) * | 2015-02-02 | 2015-05-20 | 太原理工大学 | Rotary drum screen |
| CN111094690A (en) * | 2017-07-12 | 2020-05-01 | 沙特阿拉伯石油公司 | Collection well microchip |
| CN117259196A (en) * | 2023-09-25 | 2023-12-22 | 四川沃耐稀新材料科技有限公司 | Lanthanum chloride cooling crystallization screening plant |
| CN117259196B (en) * | 2023-09-25 | 2024-02-06 | 四川沃耐稀新材料科技有限公司 | Lanthanum chloride cooling crystallization screening plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20150819 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |