CN203750832U - Novel hydraulic classification two-section sieve bend - Google Patents

Novel hydraulic classification two-section sieve bend Download PDF

Info

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
Authority
CN
China
Prior art keywords
compass screen
sieve
sieve bend
sections
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201420085465.7U
Other languages
Chinese (zh)
Inventor
李延锋
朱荣涛
张文军
贺长营
赵闻达
张旭波
王震威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN201420085465.7U priority Critical patent/CN203750832U/en
Application granted granted Critical
Publication of CN203750832U publication Critical patent/CN203750832U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a novel hydraulic classification two-section sieve bend which comprises a sieve bend box. A feed distribution box is arranged at the upper portion of the sieve bend box. A sieve bend surface is arranged inside the sieve bend box and provided with a first sieve bend surface section and a second sieve bend surface section from top to bottom. The upper end of the first sieve bend surface section is connected with a discharge port of the feed distribution box. A middle material collection groove is formed between the lower end of the first sieve bend surface section and the upper end of the second sieve bend surface section. A conical sieve plate with holes is arranged at the bottom of the middle material collection groove. The lower portion of the conical sieve plate with the holes is connected with a water flow supplementing pipe. A bottom flow discharge valve is arranged at the center of the conical sieve plate with the holes. The sieve bend surface is divided into the two sections, the middle material collection groove is additionally formed between the two sieve bend surface sections, rising water flow at the certain flow velocity is provided in the middle material collection groove, the defect that transportation is influenced when a traditional sieve bend is rapidly cut through due to moisture in materials is overcome, materials left on the sieve bend surface can be collected in time, the material accumulation phenomenon is prevented, and the effective utilization rate of the sieve bend surface is ensured.

Description

Two sections of sieve bends of a kind of novel hydropower classification
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).
CN201420085465.7U 2014-02-27 2014-02-27 Novel hydraulic classification two-section sieve bend Withdrawn - After Issue CN203750832U (en)

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 sieve bend

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 sieve bend

Publications (1)

Publication Number Publication Date
CN203750832U true CN203750832U (en) 2014-08-06

Family

ID=51246143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420085465.7U Withdrawn - After Issue CN203750832U (en) 2014-02-27 2014-02-27 Novel hydraulic classification two-section sieve bend

Country Status (1)

Country Link
CN (1) CN203750832U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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 sieve bend
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

Cited By (3)

* Cited by examiner, † Cited by third party
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 sieve bend
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

Similar Documents

Publication Publication Date Title
Noble et al. A review of state-of-the-art processing operations in coal preparation
CN102211054B (en) Process for sorting coarse coal slime by utilizing heavy medium liquid-solid fluidized bed
US10799880B2 (en) Method and apparatus for washing and grading silica sand for glass production
US4128474A (en) Process for cleaning and dewatering fine coal
CN203750832U (en) Novel hydraulic classification two-section sieve bend
CN105170306B (en) A kind of washing process for the high high high spoil coal of mud of ash
US3891546A (en) Helical chute concentrator and method of concentrating
CA3105291A1 (en) Gravity separation apparatus and method for coarse coal slime
US6666335B1 (en) Multi-mineral/ash benefication process and apparatus
CN205731673U (en) A kind of multi-product cyclone
CN101890393A (en) Spiral flow continuous centrifugal classifier
CN207533405U (en) Magnetite separation system including elevator
CN207266878U (en) A kind of gangue cracking and sorting system
RU2638068C1 (en) Device and method of cleaning and fine sorting metallurgical wastes
CN202037061U (en) Centrifugal table type gravity concentrator for fine granules
CN103817075B (en) A kind of novel hydropower classification two sections of sieve bends
CN110302889A (en) A kind of dense media ore screening installation
RU2495722C2 (en) Method of sludge tank coal slimes concentration and concentration table to this end
CN105903549A (en) Novel high-frequency vibration forky spiral chute
CN205413332U (en) Dense media disturbs bed coarse coal mud to select separately system
CN210411561U (en) Improved generation tailing metal gathers machine
CN105536961A (en) Integrated device system used for grinding and classifying mineral separation of mineral
RU2403978C1 (en) Washing and cleaning device for metalliferous sand processing
CN206046246U (en) A kind of novel high-frequency vibrates bifurcated spiral chute
CN106378304A (en) Separating device applicable to viscosity materials

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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