CN106000618A - Fluidized vertical screening device - Google Patents
Fluidized vertical screening device Download PDFInfo
- Publication number
- CN106000618A CN106000618A CN201610510320.0A CN201610510320A CN106000618A CN 106000618 A CN106000618 A CN 106000618A CN 201610510320 A CN201610510320 A CN 201610510320A CN 106000618 A CN106000618 A CN 106000618A
- Authority
- CN
- China
- Prior art keywords
- pulsation
- screen
- screening
- screen cloth
- tympanum
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a fluidized vertical screening device. An ore feeding area of ore pulp of the screening device is located on the top of a screening cavity which is placed in an erected manner; an erect screen is installed on one side of the screening cavity; a pulsation blowing film is installed on the other side of the screening cavity; a pulsation transmission device is connected with the pulsation blowing film through a pulsation transmission shaft and drives the pulsation blowing film to generate horizontal pulsation of a certain stoke and stroke frequency, and accordingly the ore pulp continuously penetrates the screen back and forth to be discharged in time; and in the whole screening process, coarse-fraction products on a sieve cannot be accumulated on the sieve face, but directly sink down, the source of abrasion and blocking of the screen is eradicated fundamentally, the service life of the screen is greatly prolonged, and the screening efficiency of the screen is greatly improved. The effect of cleaning the screen at any time is also achieved, and the screen pasting problem is fundamentally solved. By means of the structure, the screen can be kept in the best work state all the time, the high content of coarse grains in fed ore is not worried about, the requirement for the fineness of the fed ore is not strict, that too much mud is contained is not worried about either, and screen pasting is avoided.
Description
Technical field
The present invention relates to mineral manufacture field, and be a kind of fluidization vertical screening equipment.
Background technology
Mining screen subset is generally used for the stock grading of 0～300mm.For coarsely graded screening, can use sieve plate, screening is easier to, and sieve plate is the longest for service life, commonly uses in the muck operation select factory.But the screening operation of the particulate after grinding operation and microfine is inefficient, it is primarily due to dusting cover sieve aperture the least, the thinnest in order to reach certain percent opening silk screen, this allows for sieve aperture in dusting cover operation and easily blocks up, particularly containing the situation that mud is higher, the walk on sieve easily sticks with paste sieve makes sieve ineffective.It addition, the coarse fraction on Shai is not only to silk screen serious wear, and it is deposited on compass screen surface serious stop fine fraction and thoroughly sieves.Therefore, screening operation all has strict demand, coarse fraction content not to allow height to ore deposit fineness, and every day will clean screen cloth so that the operation management of dusting cover is loaded down with trivial details, and screening efficiency also is difficult to stable.Many selects factory because being reluctant to use dusting cover, and use hydraulic classiciation, but hydraulic classiciation is not by the physical dimension classification of Ore, but press the fractionation by sedimentation velocity of ore particle, sedimentation velocity is affected by Ore density, makes partition size inaccuracy, when especially density variation between Ore is the biggest, hydraulic classiciation is the most inaccurate, and heavy mineral can be caused in grinding-classification operation overground, and index can be caused in sorting operation to decline.
Existing dusting cover equipment, the most frequently used effect is preferably high frequency shale shaker, screen cloth is laterally disposed, with the horizontal less angle, after ore pulp feeds screen cloth, making fine fraction sieve by the dither of screen cloth, coarse fraction piles up on screen cloth, gradually slides out compass screen surface under effect of vibration with screen cloth for supporting bable tops.
Current dusting cover screen cloth material is mainly polyurethane, the most wear-resisting.Although stainless steel mesh percent opening is more greatly, but wearability is the poorest, and service life is short the most several days, about 15 days at most, and it is big that workload changed by screen cloth, and every day rinses.Polyurethane screen, one is fixed screen deck, percent opening less than 10%, this apply in recent years fewer and feweri, if it uses cycle to keep if screen size, at about one month, the sieve plate of such as about 0.15mm.Two is the sieve being applied on vibrating scalper, and at present, mainly based on MICHAEL DRAKE screen cloth and imitated MICHAEL DRAKE screen cloth, this application is in the majority with 0.10-2.0mm sieve aperture, wherein most with 0.11-0.18mm sieve aperture.This kind of sieve substantially requires that feed preparation unit size controls at-200 mesh more than 60%, so service life is longer, the use cycle of MICHAEL DRAKE screen cloth can reach half a year or longer.Although imitated MICHAEL DRAKE screen cloth profile is the same, subject matter is that sieve aperture easily blocks, and screen-penetrating performance is deteriorated.MICHAEL DRAKE screen cloth, if controlling well to ore deposit fineness, can reach the screening efficiency of six or seven ten percent, and sieve aperture is not easily blocked, and the screening efficiency of imitated MICHAEL DRAKE screen cloth also can reach more than 40% within a certain period of time.But, the price of MICHAEL DRAKE screen cloth is expensive, every screen cloth (about 0.7m2) close prices ten thousand yuan, be about 2.5 times of domestic imitative MICHAEL DRAKE screen cloth.
The above-mentioned various deficiencies existed due to dusting cover equipment so that mine concentrator many should use the operation of sieve classification to be forced to use hydraulic classiciation, such as cyclone, spiral classifier, sloping plate grading etc..If dusting cover equipment can overcome above-mentioned deficiency, making screening efficiency high and stablize, screen cloth is safeguarded simple, price is the most cheap, even being used directly for classification closed circuit with grinding machine to not being strict with to ore deposit fineness, the important indicator of this Neng Shixuan factory undoubtedly is greatly improved, and its market prospect will be the most considerable.
Summary of the invention
Deficiency for traditional mining dusting cover equipment, it is desirable to provide a kind of fluidization vertical screening equipment, this dusting cover equipment is by being totally different from structure and the principle of conventional screening plant, in whole screening process, fundamentally stop the source that screen cloth is worn and blocks, be greatly improved service life and the screening efficiency of screen cloth.Pulsation ore pulp the most only effectively makes fine fraction pass through screen cloth, also acts as the effect cleaning screen cloth at any time, fundamentally solves the problem sticking with paste sieve.This structure can keep described screen cloth to be constantly in best duty, be not both afraid of to coarse fraction content in ore deposit high, and be not strict with to ore deposit fineness, is not also afraid of containing mud many, will not stick with paste sieve.
The present invention is achieved through the following technical solutions:
A kind of fluidization vertical screening equipment, sand device and tympanum flange is carried including pulsation actuating device, pulsation tympanum, flange, pulsation power transmission shaft, screening cavity, screen cloth, connection screw rod, fine fraction discharge pipe, spiral, cavity top is sieved in being positioned to mining area of ore pulp, it is characterized in that: described screening cavity stands to be placed, in the both sides that screening cavity is relative, wherein upright screen cloth is installed in side, and opposite side installs pulsation tympanum, is connected fixing with screening cavity to pulsation tympanum and screen cloth by connecting screw rod；Described pulsation actuating device is connected by pulsation power transmission shaft and pulsation tympanum, pulsation tympanum is driven to produce the level pulsation of certain stroke and jig frequency by actuating device, in screening cavity, ore pulp enters fine fraction district toward redoubling through screen cloth under the effect that level is pulsed the most back and forth, and fine fraction is distinguished and is furnished with fine fraction discharge pipe；Screening cavity bottom is received spiral and is carried on sand device.
Preferably, described pulsation actuating device is cam structure, and the pulsation power transmission shaft other end of its transmission power is connected with the pulsation tympanum outside screening cavity by tympanum flange.
The stroke of described pulsation power transmission shaft is 5 to 30mm, and jig frequency is each second 1 to 5 time.
Described upright screen cloth is 90 ± 10 ° with the angle of horizontal plane, and screen size thereon is 0.1 to 0.5mm.
Described fine fraction district distribution 3-50 root inverted hydrocone type fine fraction discharge pipe, the outlet of each hydrocone type fine fraction discharge pipe is in same level.
Described pulsation tympanum is quality of rubber materials.
The present invention compared with prior art has the advantages that
1, after high frequency vibration screen ore pulp is given to compass screen surface, moisture content leaks through from the front end of screen cloth rapidly, and takes away part fine fraction, the posterior segment ore pulp of screen cloth dense, can not disperse very well between ore particle, time particularly containing mud height, moisture content is easy to stick with paste sieve very little and loses screening and rent.The screening operation of the present invention is carried out completely in the pulsation ore pulp of original concentration, and ore particle is scattered, and sludge is scattered, will not stick with paste sieve.
2, being laterally disposed due to the tradition screen cloth such as high frequency vibration screen, on sieve, coarse fraction granule must be piled up on screen cloth, and fine fraction wants by screen cloth, and the coarse granule will piled up by these blocks, and the probability sieved will reduce a lot, causes screening efficiency the highest.The screen cloth of the present invention is because being to stand to place, and coarse granule can not be piled up on screen cloth, does not stop that fine grained can be normally through screen cloth, and screening efficiency is high.
3, being laterally disposed due to the tradition screen cloth such as high frequency vibration screen, sieve on, coarse fraction granule must be piled up on screen cloth, and the generation that constantly rubs with screen cloth from sieve head to tail end is worn and torn, and makes greatly reduce the service life of screen cloth.The present invention is upright because of screen cloth, makes the coarse granule that can not sieve can not substantially prolongs the service life of screen cloth with screen cloth generation friction and wear.
4, high frequency vibration screen etc. are in order to improve screening efficiency, extend screen cloth service life, can only will screen out in advance to the most crude particle in ore deposit, will raise to ore deposit fineness and the highest ensure using effect, and this adds operation and cost undoubtedly.The screening plant that the present invention proposes, because not affected by coarse grain, can save and screen out coarse grained operation, simply, low cost in advance.
Accompanying drawing explanation
Fig. 1 is the principle schematic of fluidization vertical screening equipment；
Fig. 2 is the structural representation of fluidization vertical screening equipment；
Fig. 3 is A-A direction schematic diagram in Fig. 2；
Fig. 4 is the distribution mode schematic diagram of fine fraction discharge pipe in Fig. 2；
In figure: 1, pulsation actuating device, 2, pulsation tympanum, 3, flange, 4, pulsation power transmission shaft, 5, screening cavity, 6, to mining area, 7, screen cloth, 8, connect screw rod, 9, fine fraction district, 10, fine fraction discharge pipe, 11, spiral carry sand device, 12, tympanum flange.
Detailed description of the invention
As Figure 1-4, ore pulp enters screening cavity 5 to mining area 6 to technical scheme, and the left side of screening cavity 5 is the pulsation tympanum 2 of quality of rubber materials, and the right side is screen cloth 7, and three connects screw rod 8 by some and connects fixing, detachably, replaceable.
Described screen cloth 7 and the angle of horizontal plane are 90 ± 10 °, screen size maximum 0.5mm of screen cloth 7, minimum 0.1mm.Pulsation actuating device 1 is designed as cam structure, produces reciprocal level by pulsation power transmission shaft 4 and pulses, and pulsation power transmission shaft 4 is connected by tympanum flange 12 and pulsation tympanum 2, drives pulsation tympanum 2 to produce and moves back and forth so that the ore pulp in screening cavity 5 produces pulsation.The stroke of described pulsation power transmission shaft 4 is 5 to 30mm, and jig frequency is each second 1 to 5 time.In equipment work process, the pulsation ore pulp in screening cavity 5 reciprocally penetrates through screen cloth 7, and ore pulp enters fine fraction district 9 with the granule less than sieve aperture after screen cloth 7, and discharges from fine fraction discharge pipe 10.Fine fraction discharge pipe includes 3-50 root inverted siphon, it is distributed in the differing heights in fine fraction district 9, but outlet is in same level, see Fig. 4, so can make pulsation ore pulp by screen cloth 7 time evenly, whole screen cloth face utilizes evenly, and the mineral syrup liquid using the purpose of inverted siphon to be to ensure that in screening cavity 5 can flood screen cloth 7 all the time, keeps fluidization screening condition.Pulsation ore pulp is stopped by screen cloth 7 more than the coarse granule of screen size and stays in screening cavity 5, and directly sink to spiral to carry and be discharged on sand device 11.
From the principle of Fig. 1, dusting cover screen cloth is immersed in ore pulp, stands placement (and the screen cloth of conventional dusting cover equipment is to place sidewards, and screen cloth is to produce sieving actoion by dither etc. in atmosphere).Ore pulp feeds device from top, and the tympanum in left side is driven by drive mechanism and produces certain stroke and the pulsation of jig frequency, and ore pulp is continuous back and forth through screen cloth under the effect of pulsation.Pulsation ore pulp makes ore particle disperse, and is discharged in time by screen cloth with the ore particle less than sieve aperture, and screen cloth is always in fluidization ore pulp, more than sieve aperture coarse fraction by screen cloth intercept can not by and the discharge in time that directly sinks.In whole screening process, owing to screen cloth is upright, so-called " coarse fraction product on sieve " can not be piled up on compass screen surface, but directly sink, fundamentally stop the source that screen cloth is worn and blocks, pulsation ore pulp the most only effectively makes fine fraction pass through screen cloth, also acts as the effect cleaning screen cloth at any time, fundamentally solves the problem sticking with paste sieve.This structure can keep screen cloth to be constantly in best duty, be not both afraid of to coarse fraction content in ore deposit high, and be not strict with to ore deposit fineness, is not also afraid of containing mud many, will not stick with paste sieve.
The beneficial effect of present device is further illustrated below with the example of a contrast test;
Yunnan antimony ore uses high frequency vibration screen, and screen cloth material is rustless steel, and screen size is 40 mesh (being equivalent to 0.45mm), to ore deposit fineness-200 mesh about 60%, feed ore concentration about 20%, screening efficiency 80%, disposal ability about 6t/h, screen life-span about 15 days, screen cloth cleans 1 time every day.
The fluidization screening plant using the present invention carries out contrast test at the scene, it is also adopted by rustless steel 40 eye mesh screen, to the non-prescreening in ore deposit, to ore deposit fineness-200 mesh about 33%, feed ore concentration about 31%, screening efficiency 87%, disposal ability about 11t/h, the weight that mainly coarse fraction increases, the service life of screen cloth is 37 days.Visible, use the present invention equipment, in the case of coarser to ore deposit fineness, the service life of screening efficiency and screen cloth still than conventional high frequency shake sieve much higher, there is obvious advantage.
Claims (6)
1. a fluidization vertical screening equipment, including pulsation actuating device (1), pulsation tympanum (2), flange (3), pulsation power transmission shaft (4), screening cavity (5), to mining area (6), screen cloth (7), connect screw rod (8), fine fraction district (9), fine fraction discharge pipe (10), spiral carries sand device (11) and tympanum flange (12), cavity (5) top is sieved in being positioned to mining area (6) of ore pulp, it is characterized in that: described screening cavity (5) stands to be placed, in the both sides that screening cavity (5) is relative, wherein upright screen cloth (7) is installed in side, opposite side installs pulsation tympanum (2), it is connected fixing with screening cavity (5) to pulsation tympanum (2) and screen cloth (7) by connecting screw rod (8)；Described pulsation actuating device (1) is connected by pulsation power transmission shaft (4) and pulsation tympanum (2), pulsation tympanum is driven to produce the level pulsation of certain stroke and jig frequency by actuating device, screening cavity (5) interior ore pulp enters fine fraction district (9) toward redoubling through screen cloth (7) under the effect that level is pulsed the most back and forth, and fine fraction district (9) are distributed fine fraction discharge pipe (10)；Screening cavity (5) bottom is connected to spiral and carries on sand device (11).
A kind of fluidization vertical screening equipment, it is characterized in that: described pulsation actuating device (1) is cam structure, pulsation power transmission shaft (4) other end of its transmission power is connected by the pulsation tympanum (2) of tympanum flange (12) with screening cavity (5) outside.
A kind of fluidization vertical screening equipment, it is characterised in that: the stroke of described pulsation power transmission shaft (4) is 5 to 30mm, and jig frequency is each second 1 to 5 time.
A kind of fluidization vertical screening equipment, it is characterised in that: described upright screen cloth (7) is 90 ± 10 ° with the angle of horizontal plane, and screen size thereon is 0.1 to 0.5mm.
A kind of fluidization vertical screening equipment, it is characterised in that: 3-50 root inverted hydrocone type fine fraction discharge pipe (10) being distributed in fine fraction district (9), each fine fraction discharge pipe (10) exports in same level.
A kind of fluidization vertical screening equipment, it is characterised in that: described pulsation tympanum (2) is quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510320.0A CN106000618B (en) | 2016-07-02 | 2016-07-02 | A kind of fluidization vertical screening equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510320.0A CN106000618B (en) | 2016-07-02 | 2016-07-02 | A kind of fluidization vertical screening equipment |
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| Publication Number | Publication Date |
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| CN106000618A true CN106000618A (en) | 2016-10-12 |
| CN106000618B CN106000618B (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610510320.0A Active CN106000618B (en) | 2016-07-02 | 2016-07-02 | A kind of fluidization vertical screening equipment |
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| CN (1) | CN106000618B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127697A (en) * | 2018-08-21 | 2019-01-04 | 苏州尚梵斯科技有限公司 | A kind of screening type thermal desorption soil repair system and its method |
| CN111495734A (en) * | 2020-03-30 | 2020-08-07 | 武汉理工大学 | Wet screening device and short-process purification method for graphite ore containing wet screening |
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| US3616905A (en) * | 1968-02-26 | 1971-11-02 | Prerovske Strojirny Np | Arrangement for classifying of liquid suspensions and of solid materials |
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| KR200331332Y1 (en) * | 2003-07-28 | 2003-10-23 | 주식회사 포스코 | An apparatus for preventing the adhesion of ore from screen mesh |
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| CN201367407Y (en) * | 2009-03-20 | 2009-12-23 | 山东福田糖醇有限公司 | Combined type pressure curved sieve |
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| CN203329973U (en) * | 2013-07-12 | 2013-12-11 | 唐山国华科技国际工程有限公司 | Pneumatic-beating vibrating and turning arc-shaped screen |
| CN103537369A (en) * | 2013-10-28 | 2014-01-29 | 江苏旌凯中科超导高技术有限公司 | Reciprocating type pulsation high gradient magnetic separation system matched with solenoid type superconducting magnet |
| CN203750831U (en) * | 2014-02-17 | 2014-08-06 | 中国能建集团装备有限公司北京技术中心 | Self-cleaning vibrating screen plate |
| CN205797470U (en) * | 2016-07-02 | 2016-12-14 | 云南科力新材料股份有限公司 | A kind of fluidization vertical screening equipment |
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2016
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE1043040B (en) * | 1956-02-15 | 1958-11-06 | Rheinische Werkzeug & Maschf | Sieving machine for sieving slightly agglomerating, sticking or sintering grainy or powdery material to be sieved |
| US3616905A (en) * | 1968-02-26 | 1971-11-02 | Prerovske Strojirny Np | Arrangement for classifying of liquid suspensions and of solid materials |
| GB2221406A (en) * | 1988-08-12 | 1990-02-07 | Vni Pi Mekh Obrabotki | Vibratory screening machine |
| KR200331332Y1 (en) * | 2003-07-28 | 2003-10-23 | 주식회사 포스코 | An apparatus for preventing the adhesion of ore from screen mesh |
| CN2710767Y (en) * | 2004-04-09 | 2005-07-20 | 张永胜 | Vibration arc shaped sieve |
| CN201367407Y (en) * | 2009-03-20 | 2009-12-23 | 山东福田糖醇有限公司 | Combined type pressure curved sieve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127697A (en) * | 2018-08-21 | 2019-01-04 | 苏州尚梵斯科技有限公司 | A kind of screening type thermal desorption soil repair system and its method |
| CN109127697B (en) * | 2018-08-21 | 2021-01-26 | 吴鹏 | Screening type thermal desorption soil remediation system and method thereof |
| CN111495734A (en) * | 2020-03-30 | 2020-08-07 | 武汉理工大学 | Wet screening device and short-process purification method for graphite ore containing wet screening |
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| CN106000618B (en) | 2019-04-09 |
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Inventor after: Ran Yinhua Inventor after: Li Yunpeng Inventor after: Wang Hongying Inventor after: Wang Chang Inventor after: Wei Qingcheng Inventor after: Zhang Kaiqi Inventor after: Ou Yuan Inventor after: Han Xiaoyi Inventor after: Zhang Zhiming Inventor after: Guo Qiang Inventor after: Gu Feng Inventor after: Yang Maochun Inventor after: Ao Jiang Inventor after: Shi Li Inventor after: Li Qiang Inventor after: Xiao Dongsheng Inventor before: Han Xiaoyi Inventor before: Wei Qingcheng Inventor before: Zhang Kaiqi Inventor before: Ou Yuan Inventor before: Zhang Zhiming Inventor before: Guo Qiang Inventor before: Gu Feng Inventor before: Yang Maochun Inventor before: Ran Yinhua Inventor before: Ao Jiang Inventor before: Shi Li Inventor before: Li Geng |
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Address after: 650021 No. 86 Yuantong North Road, Kunming City, Yunnan Province Patentee after: Yunnan Keli environmental protection Co., Ltd Address before: 650031, 86 North Tong Road, Wuhua District, Yunnan, Kunming Patentee before: YUNNAN KEENLY NEW MATERIAL Co.,Ltd. |