CN104624492A - Compound vibrating screen and compound vibration providing method - Google Patents
Compound vibrating screen and compound vibration providing method Download PDFInfo
- Publication number
- CN104624492A CN104624492A CN201510090832.1A CN201510090832A CN104624492A CN 104624492 A CN104624492 A CN 104624492A CN 201510090832 A CN201510090832 A CN 201510090832A CN 104624492 A CN104624492 A CN 104624492A
- Authority
- CN
- China
- Prior art keywords
- plastid
- motor
- circular vibration
- shaker
- compound
- 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.)
- Granted
Links
Classifications
-
- 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
- B07B1/40—Resonant vibration screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the field of machinery, in particular to a compound vibrating screen and a compound vibration providing method. The compound vibrating screen comprises a frame which comprises a first plastid and a second plastid, a circular vibration system comprises a mouth with an opening in a side plate, a flange is mounted on the mouth, a rotating shaft is rotatably mounted on the flange through a bearing, an eccentric wheel is fixed on the rotating shaft, the eccentric wheel comprises a flail block, a driven belt wheel is further mounted on the rotating shaft and connected with a driving belt wheel through a belt, the driving belt wheel is located on a motor and a power output shaft of a speed reducer of the motor, and the motor is mounted on a motor bracket; a rectilinear vibration system comprises a fixed vibrating motor stand which is fixed on the side plate, and a vibrating motor is arranged on the motor stand.
Description
Technical field
The present invention relates to mechanical field, particularly relate to a kind of compound vibrating screen and complex vibration supplying method.
Background technology
The iron ore deposit of China is compared with global iron ore, have a large amount of low-grade iron ore mineral resources, in recent years in order to make full use of domestic existing low-grade magnetite mineral resources to make up the deficiency of domestic iron ore deposit, domestic existing enterprise gets involved in the development process of low-grade magnetite mineral resources.
First exploitation due to low-grade magnetite mineral resources is adopt large-scale strip mining transformation and new ore-dressing technique and process combination; utilize scale, new technology benefit solves low-grade magnetite; ore added value is low is difficult to the problem obtaining good economic benefit, and this is important means and the measure that low-grade magnetite mineral resources can be transferred to exploitation link.At present, surface mining technology is for the exploitation in the low-grade magnetite mineral deposit of total rock mineralising with very ripe, but existing conventional magnet ore deposit ore-dressing technique far can not meet and adapt to the needs of low-grade magnetite exploitation.
Magnetic iron ore mining scale had developed into ten million ton/year of level by 1,000,000 tons/year of levels in past in recent years, and even production scale is larger.The production scale design of general large-scale mine selected scenes is all at about 1000 ~ 5,000 ten thousand tons/year.But in ore dressing common process, far can not adapt to the low-grade magnetite mine ore dressing process conditions requirement of this type; In order to meet the mineral processing technology requirement of this type magnetic iron ore exploitation, use high-pressure roller mill production technology, but the high-pressure roller mill of screening restriction at present advanced technologies, can not embody advanced technologies superiority.
Summary of the invention
The object of invention: in order to provide a kind of a kind of compound vibrating screen and complex vibration supplying method of better effects if, specific purposes are shown in multiple substantial technological effects of concrete implementation section.
In order to reach as above object, the present invention takes following technical scheme:
Scheme one:
A kind of compound vibrating screen, is characterized in that, comprise frame, frame comprises plastid one and plastid two, and described plastid one has two blocks of large side plates, comprises many pipes and connect two side plates between two blocks of large side plates, also comprise supporting leg, pipe supports by supporting leg, comprises frame spring between described supporting leg and pipe, described plastid two comprises the fixed frame of upper screen cloth and the fixed frame of lower screen cloth, described fixed frame connects plastid one by linking springs, also comprise circular vibration system and vibrational system, described circular vibration system comprises the mouth of opening on side plate, described mouth is provided with ring flange, can be turned by bearing on described ring flange and rotating shaft is installed, described rotating shaft is fixed with eccentric wheel, described eccentric wheel comprises and gets rid of block, this rotating shaft is also provided with negative pulley wheel, described negative pulley wheel connects drive pulley by belt, described drive pulley is positioned on the power output shaft of motor and reductor thereof, motor is arranged on electric machine support, described vibrational system comprises fixing electric motor of shaker bearing, and electric motor of shaker bearing is fixed on side plate, and motor support base has electric motor of shaker.
The further technical scheme of the present invention is, described eccentric wheel is distributed in the both sides of side plate.
The further technical scheme of the present invention is, each own two eccentric wheels in both sides of described side plate, layout is close to by two eccentric wheels.
The further technical scheme of the present invention is, the slot size of described upper screen cloth is greater than the sieve aperture of lower screen cloth.
The further technical scheme of the present invention is, the angle of inclination of described upper screen cloth and lower screen cloth is 17 degree.
Scheme two:
A kind of supplying method of complex vibration, it is characterized in that, utilize device as above, adopt with the following method: motor passes through belt transmission, vibrating body one i.e. circular vibration system is driven to rotate, plastid one is under the effect of circular vibration system, and produce circular vibration, material movement locus under this circular vibration moves in a circle for having jumped; Plastid two is Material moving track moving linearly under electric motor of shaker effect, regulates electric motor of shaker frequency to make two plastids produce Asia and shakes, be complex as the vibration of ellipse spiral motion, plastid about two net bottom fixed mount affected tension and relaxation motion under the action of the spring simultaneously.
Scheme three:
A kind of screening technique of complex vibration, it is characterized in that, utilize device as above, adopt with the following method: motor passes through belt transmission, vibrating body one i.e. circular vibration system is driven to rotate, plastid one is under the effect of circular vibration system, and produce circular vibration, material movement locus under this circular vibration moves in a circle for having jumped; Plastid two is Material moving track moving linearly under electric motor of shaker effect, regulates electric motor of shaker frequency to make two plastids produce Asia and shakes, be complex as the vibration of ellipse spiral motion, plastid about two net bottom fixed mount affected tension and relaxation motion under the action of the spring simultaneously; The wide-aperture upper screen cloth of upper strata sieve plate first fallen by supplied materials; Be less than sieve aperture material clan and enter lower floor's sieve plate; Lower floor's sieve plate screenings makes us arrive and requires qualified material, and all on-the-sieve materials are defective.Return operation.
Adopt the present invention of as above technical scheme, following beneficial effect is had: double mass is the type in vibratory equipment relative to prior art, adopt two plastids respectively two independently excite plastid transmission, spring is used to connect two plastids, material is thus formed a responsive subresonance system, the performance of performance can't be affected because of the change of useful load.Plastid two acts on screen bottom in addition, and screen cloth tension and relaxation is moved, and screen cloth is sticky net or paste net never.Compared with elemental body system, this system only just can reach identical task performance with less power.Utilize double mass to design unique design theory, ton power consuming time only has about 25% of conventional screen extension set.The long term growth requirement that 95%. fully meet national energy-saving environmental protection is improved than transmission sifted component efficiency.As time goes on, considerable power saving benefit is produced by for user.The equipment of compound vibrating screen of the present invention embodies the energy-saving and cost-reducing green idea in the whole world.
accompanying drawing explanation
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of circular vibration generator;
Fig. 2 is Fig. 1 is partial structurtes schematic diagram;
Fig. 3 is overall new structure schematic diagram;
Fig. 4 is the general structure figure of circular vibration device; Wherein: 1, plastid one; 2, plastid two; 3, linking springs; 4, supporting leg; 5, motor support base; 6, vibrating body one; 7, Hooks coupling universal coupling; 8, screen cloth fixed head; 9, screen cloth; 10, frame spring; 11, motor; 12, drive pulley; 14, electric motor of shaker; 21, negative pulley wheel; 22. ring flanges; 23. bearing blocks; 24. outer bearing glands; 25. get rid of block one; 26. get rid of block two; 27. main shafts one; 28. axle head glands one; 29. bearings; 30. universal sockets; 31. universal joint assemblies; 32. band animal oil envelopes; 33. inner bearing glands; 34. main shafts two; 35. axle head glands two; 36. belt pulley glands.
Detailed description of the invention
Be described embodiments of the invention below in conjunction with accompanying drawing, embodiment is not construed as limiting the invention:
Vibratory sieve parameter calculates
The determination of 1.1 kinematics parameters
1. throwing index K
v
Circular shale shaker generally gets K
v=3 ~ 5.This designs compound vibrating screen, chooses K
v=9
.
2. oscillation intensity K
The selection of oscillation intensity K.The main restriction by the strength of materials and stiffness of structural member etc. thereof, the horizontal K value of current machinery is general in the scope of 3 ~ 8, and vibratory sieve then more gets 3 ~ 6.This design alternative K=4.
3. screen angle
The compound vibrating screen of the present invention that this design adopts is established and is got 17
0.
4. the amplitude A of screen box
Consult reference materials and experience this design each plastid and choose
=5mm.Be A=10mm. after double mass synthesis
5. sieve vibration frequency n according to
frequency values can be solved with determined A value.
n=(900000*kv*cos17/10xp1/2 =880
6. oscillation intensity is checked: actual vibration intensity K calculates according to the following formula:
Meet oscillation intensity designing requirement as calculated.
The actual strength of sieve: K
s=3.77≤K
Namely the frequency of sieve and amplitude are respectively: A=5mm; N=880rmn; K
v=9
The determination of 1.2 vibratory sieve technological parameters
1) technological parameter of vibratory sieve comprises length and width, the screening efficiency of compass screen surface.
The length of compass screen surface and width
By formula:
fq
In formula: Q---treating capacity, Q=400/h;
The work area of F---compass screen surface;
Q---unit interval treating capacity, q=18.2
.
F=21.97 can be drawn
, choose screen length L=7.3m, so B=F/L=22/7.3=3m
2) screening efficiency
In screening operation, screening efficiency weighs the quality index of screening process.Sieve assorted efficiency and refer in undersized product weight and raw material the ratio sieving lower rank (sieve lower rank and refer to that in raw material, contained granularity is less than the material of screen size) weight.Screening efficiency is generally expressed as a percentage.Screening efficiency can be calculated as follows:
In formula
---the percentage of undersized product content in raw material;
---sieve sieves the percentage of lower rank content in product.
Former section and the upper product of sieve are sieved accurately, the lower rank content of sieve can be calculated according to screening result
and
.Sieve screen size and the shape of compass screen surface used, sieve that should be used with measuring screening efficiency is identical.
The factor such as kinetic characteristic and productivity ratio of the humidity of the screening efficiency of sieving machine and the particle property of material, thing section, sieve aperture shape, screen angle, screen length, compass screen surface is relevant.The sieving machine of different purposes has different requirements to screening efficiency.
The kinematics parameters of table 1 of the present invention 3073 and technological parameter
1.3 kinetic parameter
Plastid one (compound vibrating screen main frame of the present invention)
During work, spring rate is little, therefore in amplitude meter formula
value can be omited.
For single-shaft vibrating screen:
M in formula-bobbing machine weight, M=883.48kg(is shown in figure);
M-eccentric block quality;
A-screen box amplitude, A=5mm;
R-eccentric throw, r=78mm.
Negative sign represents
center of gravity is on two different directions in the centre of oscillation.
Thus, m=
=53kg
Plastid two (compound vibrating screen sieve bottom framework of the present invention and material)
Through calculating that reaching vibration requires that vibration force is 22KN
Select two parallel connections of YZU series vibrating motor.
The maximum exciting force 11KN of every platform vibrating motor
Select the maximum exciting force 30KN of YZU-30-6-2.2
Two plastid transmissions are Y280M-8 and YZU-30-6-2.2 respectively as calculated.
Linking springs is preferably made up of 24 φ 18-φ 100*4.5-265 springs, connects plastid one and forms sub-vibration body with plastid two.Supporting leg is preferably made up of each 2 supporting legs of height.Support compound vibrating screen of the present invention.Make to become 17 ° with horizontal plane at the bottom of sieve.
What motor support base was installed is y280m-8 motor.Screen cloth fixed head is composed as follows: 4 are made up of 5# channel-section steel, upper and lower 2.Upper and lower net bottom both sides channel-section steel is fixed.The same with flip flop screen fixed form.Frame spring: be made up of 8 φ 20-φ 125*4.5-365 springs, connects plastid one and supporting leg, plays cushioning effect.
The course of work:
High-pressure roller mill can do prescreening and check screening in production line.Sieve plate large aperture, upper strata screen cloth is first fallen to compound vibrating screen supplied materials of the present invention. be less than sieve aperture material clan and enter lower floor's sieve plate.Lower floor's sieve plate screenings makes us arrive and requires qualified material, and all on-the-sieve materials are defective.Return operation.Under vibrating body one acts on, (motor 11, by belt transmission, drives vibrating body one to rotate to plastid one.Produce circular vibration.) Material moving track circles.Plastid two is Material moving track moving linearly under electric motor of shaker YZU-30-6-2.2 effect.Regulate electric motor of shaker frequency to make two plastids produce Asia to shake.Compound motion track does ellipse spiral motion.Tension and relaxation motion is done at plastid about the two net bottom fixed mount effect sieve end simultaneously.Compared with elemental body system, this system only just can reach identical task performance with less power.Utilize double mass to design unique design theory, ton power consuming time only has about 25 % of conventional screen extension set.The long term growth requirement that 95%. fully meet national energy-saving environmental protection is improved than transmission sifted component efficiency.As time goes on, considerable power saving benefit is produced by for user.The equipment of compound vibrating screen of the present invention embodies the energy-saving and cost-reducing green idea in the whole world.
Six, compound vibrating screen advantage of the present invention:
1, energy-conservation, than conventional screening machine power few 25%.
2, than conventional sifted component efficiency high 30%. through test sieving efficiency up to 95%.
3, compass screen surface dry cleansing net production is from by force, unblock, screening effeciency.4, the material under compass screen surface ratio forms compass screen surface size flexibly and can adjust, to reach the ratio of expection.5, screening capacity, screens in extensive range.6, simple to operate, adjustment, easy to maintenance.7, close, pollute little, good environment.9, complete machine friction, noise, long service life
Seven, compound vibrating screen of the present invention, GK sieve, domestic vibratory sieve compare.
It should be noted that, multiple schemes that this patent provides comprise basic scheme own, separate, mutually do not restrict, but it also can combine when not conflicting mutually, reaching multiple effect and jointly realizing.
more than show and describe general principle of the present invention, principal character and advantage of the present invention.Those skilled in the art should understand the present invention and not be restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (7)
1. a compound vibrating screen, it is characterized in that, comprise frame, frame comprises plastid one (1) and plastid two (2), described plastid one (1) has two blocks of large side plates, comprises many pipes and connects two side plates, also comprise supporting leg between two blocks of large side plates, pipe supports by supporting leg, comprises frame spring (10) between described supporting leg and pipe, described plastid two (2) comprises the fixed frame of upper screen cloth and the fixed frame of lower screen cloth, described fixed frame connects plastid one (1) by linking springs (3), also comprise circular vibration system and vibrational system, described circular vibration system comprises the mouth of opening on side plate, described mouth is provided with ring flange, can be turned by bearing on described ring flange and rotating shaft is installed, described rotating shaft is fixed with eccentric wheel, described eccentric wheel comprises and gets rid of block, this rotating shaft is also provided with negative pulley wheel (21), described negative pulley wheel (21) connects drive pulley (12) by belt, described drive pulley (12) is positioned on the power output shaft of motor and reductor thereof, motor is arranged on electric machine support (5), described vibrational system comprises fixing electric motor of shaker bearing, and electric motor of shaker bearing is fixed on side plate, motor support base has electric motor of shaker (14).
2. a kind of compound vibrating screen as claimed in claim 1, is characterized in that, described eccentric wheel is distributed in the both sides of side plate.
3. a kind of compound vibrating screen as claimed in claim 2, is characterized in that, each own two eccentric wheels in both sides of described side plate, layout is close to by two eccentric wheels.
4. a kind of compound vibrating screen as claimed in claim 1, is characterized in that, the slot size of described upper screen cloth is greater than the sieve aperture of lower screen cloth.
5. a kind of compound vibrating screen as claimed in claim 1, is characterized in that, the angle of inclination of described upper screen cloth and lower screen cloth is 17 degree.
6. the supplying method of a complex vibration, it is characterized in that, utilize the device described in claim 1, adopt with the following method: motor (11) passes through belt transmission, vibrating body one i.e. circular vibration system is driven to rotate, plastid one is under the effect of circular vibration system, and produce circular vibration, material movement locus under this circular vibration moves in a circle for having jumped; Plastid two is Material moving track moving linearly under electric motor of shaker (14) effect, regulate electric motor of shaker frequency to make two plastids produce Asia to shake, be complex as the vibration of ellipse spiral motion, plastid about two net bottom fixed mount affected tension and relaxation motion under the action of the spring simultaneously.
7. the screening technique of a complex vibration, it is characterized in that, utilize the device described in claim 1, adopt with the following method: motor (11) passes through belt transmission, vibrating body one i.e. circular vibration system is driven to rotate, plastid one is under the effect of circular vibration system, and produce circular vibration, material movement locus under this circular vibration moves in a circle for having jumped; Plastid two is Material moving track moving linearly under electric motor of shaker (14) effect, regulate electric motor of shaker frequency to make two plastids produce Asia to shake, be complex as the vibration of ellipse spiral motion, plastid about two net bottom fixed mount affected tension and relaxation motion under the action of the spring simultaneously; The wide-aperture upper screen cloth of upper strata sieve plate first fallen by supplied materials; Be less than sieve aperture material clan and enter lower floor's sieve plate; Lower floor's sieve plate screenings makes us arrive and requires qualified material, and all on-the-sieve materials are defective, return operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090832.1A CN104624492B (en) | 2015-02-28 | 2015-02-28 | Compound vibrating screen and compound vibration providing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090832.1A CN104624492B (en) | 2015-02-28 | 2015-02-28 | Compound vibrating screen and compound vibration providing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104624492A true CN104624492A (en) | 2015-05-20 |
| CN104624492B CN104624492B (en) | 2017-02-22 |
Family
ID=53204007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510090832.1A Expired - Fee Related CN104624492B (en) | 2015-02-28 | 2015-02-28 | Compound vibrating screen and compound vibration providing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104624492B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842126A (en) * | 2020-08-08 | 2020-10-30 | 鞍山重型矿山机器股份有限公司 | Spiral conical track screening machine and screening method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3693793A (en) * | 1970-08-28 | 1972-09-26 | Allis Chalmers Mfg Co | Unit body vibrating screen |
| CN2776573Y (en) * | 2004-11-17 | 2006-05-03 | 鹤壁市煤化机械厂 | Biplasmid resonance type vibration sieve |
| CN101693237A (en) * | 2009-09-28 | 2010-04-14 | 西南石油大学 | Double-mass self-synchronization elliptical vibrating screen based on motion synthesis |
| CN202015687U (en) * | 2011-04-11 | 2011-10-26 | 黑旋风工程机械开发有限公司 | Elliptical and linear double track combined variable-frequency vibrating screen |
| CN102744203A (en) * | 2012-07-17 | 2012-10-24 | 昆明茨坝矿山机械有限公司 | Sub-resonant two-mass energy-saving vibrating screen |
| CN103586203A (en) * | 2013-11-18 | 2014-02-19 | 河南太行振动机械股份有限公司 | Flip-flow vibrating screen |
| CN203508390U (en) * | 2013-10-24 | 2014-04-02 | 唐山汇力科技有限公司 | Circular movement vibrating screen for high-temperature calcium carbide screening |
| CN204724451U (en) * | 2015-02-28 | 2015-10-28 | 陕西三沅重工发展股份有限公司 | A kind of compound vibrating screen |
-
2015
- 2015-02-28 CN CN201510090832.1A patent/CN104624492B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3693793A (en) * | 1970-08-28 | 1972-09-26 | Allis Chalmers Mfg Co | Unit body vibrating screen |
| CN2776573Y (en) * | 2004-11-17 | 2006-05-03 | 鹤壁市煤化机械厂 | Biplasmid resonance type vibration sieve |
| CN101693237A (en) * | 2009-09-28 | 2010-04-14 | 西南石油大学 | Double-mass self-synchronization elliptical vibrating screen based on motion synthesis |
| CN202015687U (en) * | 2011-04-11 | 2011-10-26 | 黑旋风工程机械开发有限公司 | Elliptical and linear double track combined variable-frequency vibrating screen |
| CN102744203A (en) * | 2012-07-17 | 2012-10-24 | 昆明茨坝矿山机械有限公司 | Sub-resonant two-mass energy-saving vibrating screen |
| CN203508390U (en) * | 2013-10-24 | 2014-04-02 | 唐山汇力科技有限公司 | Circular movement vibrating screen for high-temperature calcium carbide screening |
| CN103586203A (en) * | 2013-11-18 | 2014-02-19 | 河南太行振动机械股份有限公司 | Flip-flow vibrating screen |
| CN204724451U (en) * | 2015-02-28 | 2015-10-28 | 陕西三沅重工发展股份有限公司 | A kind of compound vibrating screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842126A (en) * | 2020-08-08 | 2020-10-30 | 鞍山重型矿山机器股份有限公司 | Spiral conical track screening machine and screening method |
| CN111842126B (en) * | 2020-08-08 | 2023-09-01 | 鞍山鞍重矿山机械有限公司 | Spiral conical track screening machine and screening method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104624492B (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104028452B (en) | A kind of solid mixture multi-layer vibration physics screening machine | |
| CN102489384A (en) | Integrally designed two-product dense medium separation process | |
| CN203816903U (en) | Double-layered vibrating screening device | |
| CN104353608A (en) | Rotary vibrating screening machine | |
| CN201431961Y (en) | Variable-elliptic-orbit equal-thickness vibrating screen | |
| CN205762237U (en) | A kind of vibrating screen classifier | |
| CN103658026A (en) | Variable-freedom-degree parallel connection vibration sieve | |
| CN106944335A (en) | A kind of straight line uniform thickness separating sieve | |
| CN205380049U (en) | Electromagnetic drive formula two -stage vibratory screen apparatus | |
| CN204953330U (en) | Vibrating screen | |
| CN204724451U (en) | A kind of compound vibrating screen | |
| CN208177834U (en) | A kind of multistage bolter | |
| CN104624492B (en) | Compound vibrating screen and compound vibration providing method | |
| CN206509224U (en) | One kind automation circular shale shaker | |
| CN201493166U (en) | Dry separation device used for extracting fine iron powder from sand iron ore | |
| CN107185818A (en) | Caterpillar band mobile horizontal screen substation | |
| CN204247512U (en) | Whirling vibration screening machine | |
| CN208494875U (en) | A kind of sample classification drum sieve | |
| CN202752228U (en) | Open-type self-synchronizing linear vibrating screen | |
| CN110469279A (en) | A kind of solid-liquid separating machine | |
| CN204182570U (en) | Suspension type screening machine | |
| CN205085003U (en) | Circular vibrating screen equipment | |
| CN101612616B (en) | On-line multistage screening device for raw coal and screening method thereof | |
| CN205110082U (en) | Production of ginger powder is with shale shaker of adjustable sieve gradient | |
| CN206382196U (en) | A kind of straight line uniform thickness separating sieve |
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: 20170222 Termination date: 20210228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |