CN101745502B - Multi-layer sieve bend - Google Patents
Multi-layer sieve bend Download PDFInfo
- Publication number
- CN101745502B CN101745502B CN 200910006945 CN200910006945A CN101745502B CN 101745502 B CN101745502 B CN 101745502B CN 200910006945 CN200910006945 CN 200910006945 CN 200910006945 A CN200910006945 A CN 200910006945A CN 101745502 B CN101745502 B CN 101745502B
- Authority
- CN
- China
- Prior art keywords
- sieve
- sieve bend
- compass screen
- screen surface
- bend
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a multi-layer sieve bend, which comprises the sieve bends formed by sieve frames and sieve surfaces, and a feed device, the number of the sieve bends is several, the sieve bends are stacked up and down to form a plurality of layers, predetermined space is formed between two adjacent layers, the feed device comprises a plurality of feed openings with the number the same as that of the sieve bends, the feed opening of each sieve bend is correspondingly connected with one feed opening of the feed device for receiving the material fed by the feed device, and the separated material is respectively discharged by a plus sieve discharge opening and a minus sieve discharge opening. The invention has a sieve surface area increased by at least 50% compared with that of a common sieve bend with the same floor area, and has a processing capacity increased by at least 1.5 times, and synchronously, sieving efficiency is greatly improved, the service life of the sieve surface is greatly prolonged, and the installation and replacement are convenient.
Description
Technical field
The present invention relates to a kind of equipment that utilizes the comprehensive field of force such as gravity, centrifugal force and fluid force that slurry is carried out classification by granularity, refer to especially a kind of sieve bend.
Background technology
The conception of sieve bend was proposed by Cook early than 1906, to the fifties in last century, sieve bend begins to be applied industrial, the states such as the U.S., the former Soviet Union, Holland, Australia successively are applied to sieve bend the industries such as iron ore, colliery, cement, China begins design, development sieve bend in the initial stage sixties in last century, and progressively is promoted application in industries such as coloured, black, cement, chemical industry.At present, sieve bend has become effective equipment of particulate slurry sieve classification, is widely used in classification, the dehydration of the particulate slurry of all departments such as ore dressing, coal separation, cement, papermaking, grain processing and chemical industry.Such as de-mediated, the desliming of dense media preparation, the classification of grinding system slurry, the prescreening of the separation operationes such as jigging, shaking table, the stage purification of grain and light industrial segment etc.
In the production line of above-mentioned all industries, sieve bend all is an important link, the height of its classification efficiency has directly determined the quality of size, efficient and the final products of follow-up equipment, acts on greatly, and the classification efficiency that how to improve sieve bend is the focus of paying close attention to always.Under the certain prerequisite of sieve bend delivery rate (condition), partition size (sieve seam width), the factor that affects the sieve bend classification efficiency may be summarized to be: radius of curvature, cornerite, compass screen surface width, compass screen surface percent opening, wherein, radius of curvature and cornerite have determined arc length, and arc length and compass screen surface width have determined cover surface, the product of cover surface and percent opening can be described as again effective area, and therefore, the effective area that increases by every means compass screen surface just becomes the target that people pursue always.
Wherein, the factor that affects the effective area of compass screen surface comprises following:
First factor is that sieve is wide.
Sieve wide increase and increase beyond doubt the most direct method of cover surface, the wider disposal ability of compass screen surface is larger.But for any production line, maximum restriction is always arranged, can not infinitely widen, simultaneously, the compass screen surface width is larger, and slurry evenly feeds more difficult in the overall with of compass screen surface, therefore, in all used the industry of sieve bend, the wide sieve bend in the 3.5m left and right sides namely belonged to wider rank.
Second factor is radius of curvature.
In the same cornerite situation, the larger arc length of radius of curvature is larger, and increasing arc length also is the direct method that increases cover surface undoubtedly, but just as described above, arc length is decided by the size of the permission of the device space equally, and different industries, varying environment have can allow the maximum accepted.Simultaneously, under same slurry flowing velocity, radius of curvature is larger, and the suffered centrifugal force of the particle in the slurry is less, and is more unfavorable to classification.Perhaps, in order to keep the consistent of the suffered centrifugal force of particle under the larger radius of curvature, will improve the movement velocity of slurry on compass screen surface, can be subject to so again the restriction that compass screen surface wearing and tearing that the quickening because of the on-the-sieve material movement velocity brings are accelerated, therefore, the size of radius of curvature can not infinitely increase, and the larger radius of curvature of domestic and international application is about 2m at present.
The 3rd factor is cornerite.
The cornerite of sieve bend generally has the forms such as 45 degree, 60 degree, 90 degree, 120 degree, 180 degree, 270 degree, and the sieve bend that cornerite is to the maximum about 270 degree is mainly used in the industry spot take production lines such as wet-process cement, papermaking as representative at present.In 3/4ths cambered surfaces of a circle, for keep into the slurry body continuous uniform the whole compass screen surface radian of flowing through, only way adopts exactly and increases feeding pressure and increase delivery rate, the consequence of bringing namely is the rapidly aggravation of compass screen surface wearing and tearing, shorten service life, this is large cornerite (radian) the sieve bend faster main cause of wearing and tearing.
Therefore, the cornerite size of sieve bend has determined two kinds of feed-types, namely for low pressure (gravity flow) feed of little cornerite (be generally less than 90 degree) with for the high pressure feed of large cornerite (generally spending greater than 90).Although the high pressure feed-type of large cornerite still has use, belong to and haveing no alternative but; From prolonging compass screen surface life-span angle and save the power angle and consider, low pressure, parcel angle sieve bend remain that people pursue.
The 4th factor is the compass screen surface percent opening.
Percent opening refers in a certain specified sieve seam width situation.Same cover surface, the larger undoubtedly grading effect of percent opening is more remarkable, and the size of percent opening directly is decided by character and the level of processing of material therefor.At present, the sieve bend compass screen surface generally adopts stainless steel welding wedge wire screen face and Polyurethane sieve.For sieve seam for for the compass screen surface of 0.5mm, the percent opening of stainless steel welding compass screen surface is different according to employed steel wire diameter size, generally can reach about 20%, the percent opening of Polyurethane sieve is then wanted less and is differed larger, from 7% to 15% does not wait, and the sieve of two kinds of compass screen surfaces seam generally all adopts trapezoidal, occurs to alleviate stopping state.
To sum up, for the actual production line, affect factors all after the optimizations in the classification efficiency of certain space arc sieve at it, maintained on the present level, do not have between factors, to obtain certain balance under the large technological break-through prerequisite, do not had larger breakthrough, to make every effort to alleviate stopping state also be a kind of improvement on the prior art basis even add vibration or beating unit at sieve bend, but effect is not clearly.
Summary of the invention
The technical problem to be solved in the present invention is, for the prior art situation, namely on the basis that affects the optimization of sieve bend classification efficiency factors, provide a kind of brand-new, in equal space, increase substantially the compass screen surface effective area, simultaneously equal material is increased substantially the multi-layer sieve bend of classification efficiency.
In order to solve above-mentioned technical problem, the invention provides a kind of multi-layer sieve bend, comprise the sieve bend and the charging gear that are formed by screen frame and compass screen surface, described sieve bend is a plurality of, stacked formation multilayer leaves predetermined space between the adjacent two layers up and down; Described charging gear comprises a plurality of material inlets that equate with described sieve bend quantity, the corresponding connection of a material inlet of the charging aperture of described each sieve bend and described charging gear, be used for to receive the material of being supplied with by charging gear, discharged respectively with the material after the screenings discharge gate will separate by the oversize discharge gate; The oversize discharge gate of upper and lower sieve bend is independent the setting respectively, and the screenings discharge gate of upper and lower sieve bend links together by a tube connector, discharges by a common outlet; The compass screen surface back side of described each sieve bend is provided with a plurality of spaced deflectors, the mucous membrane that forms because of surface tension and viscosity in order to destroy the lower slurries of sieve.
The present invention has the advantages such as manufacturing is simple, effective area greatly, does not need power, unit are screen cloth disposal ability is large, screening efficiency is high, the difficult obstruction of sieve seam, anti-alluvial.
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the side structure schematic diagram of one embodiment of the invention;
Fig. 2 is Facad structure schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is the Facad structure schematic diagram of charging gear among Fig. 1;
Fig. 4 is the side structure schematic diagram of charging gear among Fig. 1;
Fig. 5 is the plan structure schematic diagram of charging gear among Fig. 1;
Fig. 6 is the part cut-away view of compass screen surface section among the present invention.
The specific embodiment
That the present invention mainly solves is wide at any one fixing radius of curvature, cornerite, sieve, under the combination of compass screen surface percent opening, how under equal floor space, to increase substantially cover surface increasing substantially the problem of sieve bend classification efficiency, and affect the many Parametric optimization problems of classification efficiency.
Based on above-mentioned purpose, the invention provides a kind of multi-layer sieve bend, that is, sieve bend is a plurality of, and stacked formation multilayer leaves predetermined space between every layer up and down, and this space is used for holding the material of lower floor's sieve bend.Because it is a plurality of that the sieve bend layering is set to, therefore, charging gear also unlike the prior art.Below be elaborated by specific embodiment.
Referring to Fig. 1, be the side structure schematic diagram of one embodiment of the invention.In this embodiment, total two-layer sieve bend, the upper strata sieve bend comprises upper strata compass screen surface 211 and upper strata screen frame 212, lower floor's sieve bend comprises lower floor's compass screen surface 221 and lower floor's screen frame 222, this two-layer sieve bend stacks together up and down, predetermined space is also left in the centre, is used for holding the material on lower floor's sieve bend compass screen surface 221.
Two material inlets of charging gear 1 are the up and down corresponding connection of the charging aperture of sieve bend respectively, and material flows to respectively up and down sieve bend by the different material inlets of materials device 1, carries out the separation of material by sieve bend.
Be divided into two parts through the material after each sieve bend separation, a part is on-the-sieve material, and a part is undersize material, and on-the-sieve material is discharged by the oversize discharge gate.Undersize material is discharged by the screenings discharge gate.In Fig. 1, up and down respectively independent setting of the oversize discharge gate 213 of sieve bend and 223, and the screenings discharge gate 214 of sieve bend and 224 links together by a tube connector 23 up and down, discharges by a common outlet 24.
Certainly, the oversize discharge gate also can connect together, and the oversize of each sieve bend is discharged by a conjoint outlet.And the screenings discharge gate also can be distinguished independent the setting.
Above-mentioned double-deck sieve bend has a framework 3, and whole device supports by a support 4.
In the present invention, in the adjacent two layers sieve bend, the width of upper strata sieve bend is less than the width of lower floor's sieve bend.Referring to Fig. 2, Fig. 2 is Facad structure schematic diagram embodiment illustrated in fig. 1, and upper strata compass screen surface 211 has identical center line with lower floor compass screen surface 221, and the width of upper strata compass screen surface 221 is convenient to installation, replacing and the observation of compass screen surface like this less than the width of lower floor's compass screen surface 221.When the lower floor compass screen surface requires when wider, about the upper strata compass screen surface is further divided into two, these two respectively and all reserve distance between biside plate and two and be convenient to install, change and observe.
In addition, from bottom to top the cornerite of every layer of described sieve bend compass screen surface according to identical can the reducing gradually of character of material handling.The sieve of every layer of compass screen surface seam can be as required or is identical or different.
The said structure form is equal to the use in parallel of two (or many) sieve bends, has greatly improved the grading effect to certain volume slurry in the unit interval.
For most of slurry materials to be fractionated, in the stock grading process, because surface tension and the viscosity of slurries form mucous membrane under the compass screen surface of being everlasting, thereby hinder minute stage material by prone the oozing out of sieve.For this defective, the present invention is provided with a plurality of spaced deflectors at the compass screen surface back side of each sieve bend, the deflector 217 that is positioned at sieve bend compass screen surface 211 back sides, upper strata as shown in Figure 1, deflector 227 with sieve bend compass screen surface 221 back sides, upper strata, by the deflector 217,227 that the interval arranges, can destroy the lower slurries of sieve because of the mucous membrane that surface tension and viscosity form, make the lower slurries of sieve in time break away from compass screen surface, be conducive to the upper residual fine fraction of sieve and continue thoroughly sieve, improve classification efficiency.When specifically arranging, can be at two or many banded deflectors of the back of every layer of compass screen surface ad-hoc location located level arrangement.
Charging gear of the present invention can be realized according to the compass screen surface size of different layers material being distributed automatically, and implementation is Fig. 3, Fig. 4 and shown in Figure 5 for example.Charging gear 1 comprises tubular type dispenser 11, baffle-box 12, and tubular type dispenser 11 is arranged on the baffle-box 12 along the sieve cross direction, and it has a charging aperture 111, and a plurality of discharging openings 112 as shown in Figure 5, are 4 discharging openings 112.In baffle-box, be provided with two overflow plates 13 and 13 ', shown in Fig. 4,5, with 13 ' baffle-box is divided into feed chamber A and the B corresponding with the number of sieve bend by overflow plate 13, feed chamber A is corresponding with the charging aperture of lower floor sieve bend compass screen surface by material inlet 16, and it is corresponding with the charging aperture of upper strata sieve bend compass screen surface that feed chamber B passes through material inlet 16 '.Charging gear among the present invention can be realized the feed of automatic uniform.Material at first enters the tubular type distributor 11 of arranging along the compass screen surface overall with, enters baffle-box 12 through several discharging openings 112, establishes twice overflow plate 13 and 13 ' in the baffle-box 12, and the material in the baffle-box 12 overflows to feed chamber A and B through overflow plate 13 and 13 '.Because the width ratio of two overflow plates is with two layer screen face width degree ratio is identical up and down, therefore, the ratio of the volume of feed chamber A and B is identical with the compass screen surface width ratio, therefore can realize carrying out autofeed according to the ability of different sieve bend material handlings.
The material inlet 16,16 ' of charging gear 1 mainly is that the control material feeds pressure and the speed of corresponding compass screen surface, and guarantees that material is tangential direction and feeds compass screen surface.Material inlet 16 is provided with adjustable plate 14, is used for regulating the sectional dimension of discharging opening 16.Wherein, material through overflow plate respectively the material inlet through being equipped with suitable counterweight feed simultaneously up and down along the compass screen surface overall with that two-layer compass screen surface separates.The sectional dimension of discharging opening 16 can be adjusted according to actual needs at any time by the adjusting counterweight 15 of adjustable plate 14; its major advantage is in case after stopping up when discharging opening 16; need not shut down cleaning; only need to adjust adjustable plate counterweight 15,, problem just is readily solved; simultaneously; can adjust suitable feeding pressure according to the height of material slurry moisture in the middle of producing, to guarantee good classification.
Up and down two-layer compass screen surface 211 and 221 among Fig. 1 has certain radius of curvature and certain radian, each compass screen surface inner surface arc-shaped concave is main working face, this working face is comprised of many grating intervals, space between adjacent two gratings forms the sieve seam, sieve seam size in the whole compass screen surface can be identical, also can be not identical.The section configuration of the grating among the present invention is " rectangle-triangle ".As shown in Figure 6, Fig. 6 is the part cut-away view of compass screen surface section, and wherein, the shape of the section of grating 25 for being composited by rectangle and triangle forms sieve seam 26 between two gratings 25.The present invention is the complex form of " rectangle-triangle " of uniqueness with the crosssection shape design of grating.Its principle is, when compass screen surface curves when circular-arc, the sieve seam that is comprised of the rectangle part of grating has formed trapezoidal cross-section sieve seam, slurries can be easily by and do not stop up, after the simultaneously rectangular cross section grating wearing and tearing, still can substantially keep former sieve seam size, greatly increase the service life and guarantee effectiveness of classification, and the triangle of bottom makes the particle that has passed through rectangular section possible without what stop up again.And common grating section configuration is trapezoidal, along with the aggravation of wearing and tearing is sieved seam also in gradually increase, can not guarantee effectiveness of classification on the one hand, has also accelerated on the other hand the frequency that compass screen surface is eliminated replacing.And the grating of " rectangle-triangle " of the present invention section configuration has just solved this problem well.
Also can be provided with vibrating motor at the superiors or the orlop of the framework 3 of this device, intermittent control shaking or sustained vibration are provided, again to reduce to sieve the probability that seam stops up.
In addition, because material is in from top to bottom motion, classification process, because along with the minimizing of moisture in the material, kinetic energy is also reducing, material usually deposits in the latter half of compass screen surface.In order to address this problem, the present invention is furnished with the dilution parts for each sieve bend, particularly, outside the screen frame of the upper strata of adjacent two sieve bends sieve bend, be provided with sparge pipe 215,225, as shown in Figure 1, be connected with anti-alluvial nozzle 216,226 at sparge pipe 215,225, be used for the material on the dilution lower floor sieve bend compass screen surface, so that on-the-sieve material is discharged smoothly.Wherein, the emission direction of described anti-alluvial nozzle 5 is consistent with the tangential direction of sieve bend compass screen surface radian.And, but can be according to the different in kind of material and to the difference standard-sized sheet of product requirement or half-open even intermittently open the problem that the compass screen surface utilization rate of effectively having avoided the on-the-sieve material alluvial to cause reduces.
When using sieve bend provided by the present invention to carry out the classification of material, material at first enters the tubular type distributor 11 of arranging along the compass screen surface overall with, enter baffle-box 12 through several discharging openings 112, material is in baffle-box 12, through overflow plate 13 and 13 ', overflow to feed chamber A and B, by material inlet 16 and 16 ' following sieve bend compass screen surface is carried out the overall with even feeding.Wherein, material inlet 16 and 16 ' can control to adjust plate by regulating counterweight, with the sectional dimension of adjusting discharging opening 16, thereby reaches the purpose of regulating feeding coal.
Material through charging gear equably, be tangential direction with certain flow velocity and compass screen surface and flow into simultaneously up and down two-layer compass screen surface.On the one hand, under the effect of gravity, centrifugal force, a part of material is close to the compass screen surface motion.Because the working face surfacing of sieve bend compass screen surface is smooth, the radius of curvature of compass screen surface each point equates, grating is transversely arranged, and namely the slurry direction of motion of material and sieve seam orientation perpendicular quadrature play and avoid sieving the effect that seam stops up, and have improved simultaneously the accuracy when critical particle separates.Material is flow in the process of another root grating by a grating, the arris of every grating is to material bed generation dissection, this part material that is cut is under the multiple actions such as centrifugal force and gravity, resistance, fluid impulse force, seam is discharged through sieving, be undersize, the part that is not cut is crossed compass screen surface, becomes oversize, thereby finishes classification process.
Above-mentioned multi-layer sieve bend is simple in structure, reasonable in design, effective area is large, classification efficiency is high, operating cost is low.Compare with the common sieve bend in the existing production line, on equal floor space, cover surface increases by 50% at least, treating capacity is 1.5 times of existing common sieve bend at least, simultaneously, under the acting in conjunction of charging gear, deflector, rectangle one triangular section grating, high opening rate Polyurethane sieve, anti-alluvial nozzle, screening efficiency increases substantially, sieve seam stopping state significantly reduces, significantly prolong the service life of compass screen surface, and it is convenient to install, change, and also can according to different pan feeding character, be equipped with stainless steel welding compass screen surface or Polyurethane sieve.
Certainly, according to actual needs, also can adopt the multi-layer sieve bend structure, such as 3 layers, or more than 3 layers, perhaps every one deck can adopt two or above sieve bend, as, when the compass screen surface of bottom sieve bend was wider, the upper strata sieve bend can adopt two sieve bends.When the number of sieve bend and position not simultaneously, in order to realize the automatic uniform feed, the setting of the overflow plate in the charging gear will be done suitable adjustment, and namely the width ratio of each overflow plate is identical with the compass screen surface width ratio that is separated into sieve bend corresponding to feed chamber by overflow plate.
It should be noted last that: above embodiment is only unrestricted in order to the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, the modification of under the premise without departing from the spirit and scope of the present invention the present invention being carried out or be equal to replacement all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. a multi-layer sieve bend comprises the sieve bend and the charging gear that are comprised of screen frame and compass screen surface, it is characterized in that, described sieve bend is a plurality of, and stacked formation multilayer leaves predetermined space between the adjacent two layers up and down; Described charging gear comprises a plurality of material inlets that equate with described sieve bend quantity, the corresponding connection of a material inlet of the charging aperture of described each sieve bend and described charging gear, be used for to receive the material of being supplied with by charging gear, discharged respectively with the material after the screenings discharge gate will separate by the oversize discharge gate;
The oversize discharge gate of upper and lower sieve bend is independent the setting respectively, and the screenings discharge gate of upper and lower sieve bend links together by a tube connector, discharges by a common outlet; The compass screen surface back side of described each sieve bend is provided with a plurality of spaced deflectors, the mucous membrane that forms because of surface tension and viscosity in order to destroy the lower slurries of sieve.
2. multi-layer sieve bend according to claim 1 is characterized in that, in the adjacent two layers sieve bend, the width of upper strata sieve bend is used for making things convenient for installation, replacing and the observation of compass screen surface less than the width of lower floor's sieve bend;
The cornerite of every layer of described sieve bend compass screen surface is identical or reduce gradually according to the character of material handling from bottom to top;
The oversize discharge gate correspondence of described each sieve bend links together, and described screenings discharge gate correspondence links together.
3. multi-layer sieve bend according to claim 1, it is characterized in that, described charging gear comprises baffle-box, and described baffle-box is divided into the feed chamber corresponding with the number of sieve bend by a plurality of overflow plates, and each feed chamber is corresponding with corresponding sieve bend charging aperture respectively by material inlet;
The ratio of each overflow plate width in described formation feed chamber is identical with ratio corresponding to the compass screen surface width of the sieve bend of each overflow plate.
4. multi-layer sieve bend according to claim 3 is characterized in that, described charging gear also comprises the tubular type dispenser along the setting of sieve cross direction that is positioned on the baffle-box, and described tubular type dispenser has a charging aperture and a plurality of discharging opening; Described a plurality of discharging opening evenly arranges.
5. multi-layer sieve bend according to claim 1 is characterized in that, comprises adjustable plate in the component parts of each material inlet of described charging gear, is used for regulating the size in material inlet cross section.
6. multi-layer sieve bend according to claim 1 is characterized in that, the compass screen surface of described sieve bend is comprised of many grating intervals, and the space between adjacent two gratings forms the sieve seam, and the section configuration of described grating is the compound shape of " rectangle-triangle ".
7. multi-layer sieve bend according to claim 1 is characterized in that, is provided with sparge pipe above each sieve bend, is connected with anti-alluvial nozzle at sparge pipe, is used for the material on the dilution sieve bend compass screen surface, so that on-the-sieve material is discharged smoothly;
The emission direction of described anti-alluvial nozzle is consistent with the tangential direction of sieve bend compass screen surface radian.
8. multi-layer sieve bend according to claim 1 is characterized in that, the compass screen surface of described every one deck sieve bend can be comprised of one or more arc compass screen surfaces that are arranged in juxtaposition;
The arc compass screen surface that described every one deck is arranged in juxtaposition is spaced, and is convenient to installation, replacing and the observation of compass screen surface.
9. multi-layer sieve bend according to claim 1 is characterized in that, also comprises framework, is provided with vibrating motor at the superiors or the orlop of described support frame, and intermittent control shaking or sustained vibration can be provided, again to reduce to sieve the probability that seam stops up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910006945 CN101745502B (en) | 2008-12-17 | 2009-02-13 | Multi-layer sieve bend |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184590.2 | 2008-12-17 | ||
| CN200810184590 | 2008-12-17 | ||
| CN 200910006945 CN101745502B (en) | 2008-12-17 | 2009-02-13 | Multi-layer sieve bend |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745502A CN101745502A (en) | 2010-06-23 |
| CN101745502B true CN101745502B (en) | 2013-02-13 |
Family
ID=42473488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910006945 Expired - Fee Related CN101745502B (en) | 2008-12-17 | 2009-02-13 | Multi-layer sieve bend |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745502B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205315B (en) * | 2011-05-06 | 2013-07-10 | 符东旭 | Vibration mesh curve screen |
| CN102499191B (en) * | 2011-11-28 | 2014-02-05 | 广东恒兴饲料实业股份有限公司 | Artemia separation device |
| CN104226590A (en) * | 2014-09-05 | 2014-12-24 | 无锡欧易博阀业科技有限公司 | Curve screen |
| CN104841631A (en) * | 2015-05-07 | 2015-08-19 | 山东华联矿业股份有限公司 | Cyclone curved screen and application method thereof |
| CN107282434A (en) * | 2017-07-23 | 2017-10-24 | 江苏牧羊控股有限公司 | One kind revolution classifying screen feeder |
| CN107361018A (en) * | 2017-08-18 | 2017-11-21 | 桂平市蒙圩镇火炎种养专业合作社 | The decontamination cycle system of turtle breeding pond |
| 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 |
| CN110064242A (en) * | 2019-05-23 | 2019-07-30 | 鞍山重型矿山机器股份有限公司 | High frequency linear is dehydrated dusting cover |
| CN111842280A (en) * | 2020-06-23 | 2020-10-30 | 内蒙古广利隆能源股份有限公司 | Clean coal separation device and processing method |
| CN112547494A (en) * | 2020-12-04 | 2021-03-26 | 唐山森普矿山装备有限公司 | Slack coal screening equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688902A (en) * | 1971-04-01 | 1972-09-05 | Tyler Inc W S | Grain cleaner |
| CN2095715U (en) * | 1991-01-20 | 1992-02-12 | 中国矿业大学 | String type arc probability screen |
| CN2127891Y (en) * | 1992-05-12 | 1993-03-10 | 王鉴溥 | Wave-motion bolting mill |
| 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 |
-
2009
- 2009-02-13 CN CN 200910006945 patent/CN101745502B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688902A (en) * | 1971-04-01 | 1972-09-05 | Tyler Inc W S | Grain cleaner |
| CN2095715U (en) * | 1991-01-20 | 1992-02-12 | 中国矿业大学 | String type arc probability screen |
| CN2127891Y (en) * | 1992-05-12 | 1993-03-10 | 王鉴溥 | Wave-motion bolting mill |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101745502A (en) | 2010-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101745502B (en) | Multi-layer sieve bend | |
| CN201337984Y (en) | High frequency vibration undersize sieve | |
| EA011527B1 (en) | Tubular screen separator | |
| US20040016682A1 (en) | Wet fine particle sizing and separating apparatus | |
| CN114471918A (en) | Uniform material distribution screening system in ore grinding flow | |
| CN201410464Y (en) | Multilayer arc-shaped screen | |
| CN212681661U (en) | Pneumatic screen cloth cleaning device | |
| US5336408A (en) | Apparatus for separating particles from a fluid stream | |
| RU2034670C1 (en) | Apparatus for dry separation of heavy materials off mixture of granulated materials with different density values | |
| CN103817075B (en) | Novel hydraulic classification two-section arc screen | |
| CN211726460U (en) | Multichannel stromatolite formula drum screening equipment | |
| CN110198793A (en) | Screening plant | |
| CN217527799U (en) | Pre-screening device applied to semi-autogenous grinding | |
| CN215198184U (en) | Gravity-flow homogenizing device | |
| US3240336A (en) | Process and apparatus for hydraulically sorting a mixture containing fine particulate material | |
| CN109127407A (en) | Sanding dusts screening plant | |
| CN212397288U (en) | Vibration sorting machine | |
| CN100594991C (en) | Vibrating no-mesh screening machien and working method thereof | |
| WO1998029202A1 (en) | A screenless vibrator separator | |
| CN2768895Y (en) | Wet isoconcentrate fine granule sieving machine | |
| US3042204A (en) | Process and apparatus for separating granular solids into two or more end fractions | |
| RU2068299C1 (en) | Hydraulic classifier | |
| CN101575838B (en) | Single-grade stone fine screening mechanism | |
| CN205008229U (en) | Automatic water installation that recoils of high frequency vibrating screen | |
| CN213494768U (en) | Uniform distributing device for distributing material on roller surface of sundry screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150213 |
|
| EXPY | Termination of patent right or utility model |