CN110340003A - A kind of floating frame double drive self-balancing type flip flop screen - Google Patents
A kind of floating frame double drive self-balancing type flip flop screen Download PDFInfo
- Publication number
- CN110340003A CN110340003A CN201910619491.0A CN201910619491A CN110340003A CN 110340003 A CN110340003 A CN 110340003A CN 201910619491 A CN201910619491 A CN 201910619491A CN 110340003 A CN110340003 A CN 110340003A
- Authority
- CN
- China
- Prior art keywords
- floating
- screen
- eccentric shaft
- screen frame
- frame
- 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.)
- Pending
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
- B07B1/286—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens with excentric shafts
-
- 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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Abstract
The invention discloses a kind of floating frame double drive self-balancing type flip flop screens, including fixed screen frame, floating screen frame, elastic screen surface, suspension arrangement component, mainframe, motor and eccentric shaft assembly etc.；The compass screen surface crossbeam and the compass screen surface crossbeam of floating screen frame of fixed screen frame are alternately arranged, and two screen frames are linked together by buffer spring and suspension arrangement component；Fixed screen frame is mounted on mainframe by rubber damping pad, and motor is positioned on the electric machine support of mainframe side, and motor imparts power to eccentric shaft assembly by valve type flexible clutch；Two sets of eccentric shaft assemblies are along floating screen frame central plane arrangement symmetrical above and below, eccentric shaft assembly is made of eccentric shaft, two-row ball bearing and bearing spider etc., the eccentric force that two eccentric shafts generate is overlapped mutually along the direction for being parallel to floating screen frame, is cancelled out each other along the direction perpendicular to floating screen frame.The configuration of the present invention is simple runs smoothly, and noise is small, and work efficiency is high, and low energy consumption, and good combination property is practical.
Description
Technical field
The present invention relates to deep screening engineering device technique fields, more particularly to a kind of floating frame double drive self-balancing type tension and relaxation
Sieve.
Background technique
Coal is the basic energy resource and the important raw material of industry in China, the powerful support development of national economy.Vibrating screen
Subset is coal screening important composition equipment, and working performance is the key that can coal realize efficient separation.
But coal seam infiltration, screening process dust-proof water spray etc. due to, cause raw coal to contain more free moisture, pass
There are more serious plug-hole phenomenons when handling Wet Coal ' material for the screening plant of system, it is difficult to which that realizes fine moist material has
Effect screening.
Currently, the flip flop screen used in the market relies primarily on import, it is expensive and there are the keys such as energy consumption height, compass screen surface
The problems such as component rapid wear.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of floating frame double drive self-balancing type flip flop screen,
The screening plant that material sorting is realized in tension and relaxation movement is made using elastic screen surface, outstanding feature is that compass screen surface vibration acceleration is big,
Have many advantages, such as that plug-hole, screening efficiency be not high when sieving fine moist material.At work, compass screen surface alternately tenses and relaxes,
Material is set to generate advance bounce motion, avoidable material sticks compass screen surface and blocks sieve pore.Simultaneously as flexible sieve plate is used,
Make to cast 30-50 times that acceleration reaches acceleration of gravity, therefore sieve pore is not only not easy to plug, and screening efficiency improves, place
Reason amount is big, and dynamic load is small, and power consumption is few, and noise is low.
The technical scheme adopted by the invention is that: a kind of floating frame double drive self-balancing type flip flop screen, including fix screen frame, float
Dynamic screen frame, suspension arrangement component, rubber damping pad, mainframe, motor lower supporter, motor, support of motor and eccentric shaft group
Part；The mainframe is fixed on the ground by snubber base, or is directly anchored on ground；The fixed screen frame is by subtracting
Vibration rubber pad is mounted on mainframe, and forms angle with ground；
The compass screen surface crossbeam of the fixed screen frame is alternately arranged with the compass screen surface crossbeam of floating screen frame, the fixed screen frame and the sieve that floats
Frame two sides are linked together by suspension arrangement component；
The motor is mounted on the side of mainframe by electric machine support, and motor passes through valve type shaft coupling and eccentric shaft group
Part is connected.
Further, the suspension arrangement component includes the upper fixed block being connected by screw rod and lower fixed block, described
Upper fixed block is connected with fixed screen frame, and the lower fixed block is connected with floating screen frame.
Further, the suspension arrangement component further includes cambered surface convex block, cambered surface concave block and fastening nut, and the cambered surface is convex
Block matches the upper and lower surfaces for being fixed on upper fixed block with the surface of cambered surface concave block, and passes through screw rod phase by fastening nut
Fastening；The cambered surface convex block also matches the upper and lower surfaces for being fixed on lower fixed block with the surface of cambered surface concave block.
Further, the eccentric shaft assembly includes eccentric shaft, two-row ball bearing, eccentric shaft stool, sealing ring, oil nozzle.
Further, the eccentric shaft is mounted in eccentric shaft stool by two-row ball bearing, the eccentric shaft branch
Sealing ring is provided between seat and eccentric shaft.
Further, the eccentric shaft stool is mounted by means of bolts on floating screen frame surface, the eccentric shaft
Support is removable bulk-breaking, is assembled by support body, front and rear cover and bolt, the eccentric shaft holder top also installs oil
Mouth.
Further, floating screen frame upper end is also symmetrical above and below is equipped with eccentric shaft assembly, the bias shaft assembly
It is fixedly mounted on floating screen frame by studs.
Further, the eccentric shaft is centre to monosymmetric multi-diameter shaft, including intermediate eccentric segment, with symmetrical cloth
The drive section of the sealing construction section and bearing construction section, single-sided arrangement set, drive section are connected by valve type shaft coupling with motor.
Further, the flip flop screen further includes elastic screen surface, and the elastic screen surface is mutually connected by several pieces of rectangle compass screen surfaces
Composition is connect, rectangle compass screen surface both ends are separately fixed on the fixed screen frame compass screen surface crossbeam adjacent with floating screen frame.
Further, the fixed screen frame and floating screen frame upper end are additionally provided with buffer spring.
Compared with prior art, the beneficial effects of the present invention are:
1, the fixation screen frame in the present invention is connected with mainframe, and centre is equipped with buffer rubber gasket, equivalent to increase
Mainframe quality, while mass of vibration is alleviated, it ensure that stability when complete machine work.
2, elastic screen surface uses polyurethane material, in vibration processes, relative motion between fixed screen frame and floating screen frame,
It drives elastic screen surface to make flex motion, realizes that material sieves thoroughly, screening efficiency is high.
3, the motor drives eccentric shaft turns, bias caused by the eccentric shaft along floating screen frame arrangement symmetrical above and below
Power autobalance, eccentric force are overlapped mutually along parallel flotation screen frame direction, are cancelled out each other along vertical float screen frame direction, complete machine fortune
Row is more steady.
4, the eccentric shaft only drive floating screen frame move, while meeting job requirement, that is, can increase eccentric shaft,
The service life of screen frame and sieve, and Oscillation Amplitude can be reduced, vibration noise is reduced, energy consumption is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of floating frame double drive self-balancing type flip flop screen of the invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is left view of the invention；
Fig. 5 is suspension arrangement component structure diagram of the invention；
Fig. 6 is eccentric shaft component structure diagram of the invention；
Fig. 7 is the diagrammatic cross-section of A-A in Fig. 6；
Fig. 8 is eccentric shaft structure schematic diagram of the invention.
Wherein: the fixed screen frame of 1-, 2- floating screen frame, 3- suspension arrangement component, 4- rubber damping pad, 5- mainframe, 6- electricity
Motivation bracket, 7- motor, 8- valve type shaft coupling, 9- bias shaft assembly, 10- buffer spring, 11- elastic screen surface, 12- stud,
The upper fixed block of 31-, fixed block, 33- fastening nut under 32-, 34- cambered surface convex block, 35- cambered surface concave block, 36- screw rod, 91- are eccentric
Axis, 92- two-row ball bearing, 93- bias shaft stool, 94- sealing ring, 95- oil nozzle, 911- eccentric segment, 912- seal construction section,
913- bearing construction section, 914- drive section.
Specific embodiment
In order to deepen the understanding of the present invention, present invention will be further explained below with reference to the attached drawings and examples, the implementation
Example for explaining only the invention, does not constitute protection scope of the present invention and limits.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, floating frame double drive self-balancing type flip flop screen of the invention, mainly by fixed screen frame
1, floating screen frame 2, suspension arrangement component 3, rubber damping pad 4, mainframe 5, support of motor 6, motor 7, valve type shaft coupling
8, eccentric shaft assembly 9, buffer spring 10, the composition of elastic screen surface 11；The mainframe 5 is fixed on ground by snubber base
On, or be directly anchored on ground；The fixed screen frame 1 is fixed on mainframe 5, and intermediate arrangement has rubber damping pad 4；It is described
2 two sides of floating screen frame linked together by suspension arrangement component 3 and fixed screen frame 1, two screen frame upper ends are equipped with slow
Rush spring 10；The compass screen surface crossbeam of the floating screen frame 2 and the compass screen surface crossbeam of fixed screen frame 1 are alternately arranged, the elasticity sieve
Face 11 is made of several pieces of rectangle compass screen surface interconnections, and rectangle compass screen surface both ends are separately fixed at fixed screen frame 1 and 2 phase of floating screen frame
On adjacent compass screen surface crossbeam, when two screen frame relative motions, elastic screen surface is driven to do tension and relaxation movement；The motor 7 passes through
Electric machine support 6 is mounted on the side of mainframe 5, and motor 7 is connected by valve type shaft coupling 8 with eccentric shaft assembly 9.
As shown in figure 5, the suspension arrangement component 3 includes the upper fixed block 31 being connected with fixed screen frame 1 and the sieve that floats
Screw rod 36, the cambered surface convex block 34, cambered surface concave block of fixed block 31 and lower fixed block 32 on lower fixed block 32 that frame 2 is connected, connection
35 and fastening nut 33 form；The suspension arrangement component 3 further includes cambered surface convex block 34, cambered surface concave block 35 and fastening nut 33,
The cambered surface convex block 34 matches the upper and lower surfaces for being fixed on upper fixed block 31 with the surface of cambered surface concave block 35, and by tight
Gu nut 33 passes through screw rod 36 and is fastened；The cambered surface convex block 34 is also matched with the surface of cambered surface concave block 35 is fixed on lower fixation
The upper and lower surfaces of block 32.
As shown in Figure 6, Figure 7, the eccentric shaft assembly 9 include eccentric shaft 91, eccentric shaft stool 93, two-row ball bearing 92,
Sealing ring 94, oil nozzle 95 form；It is described that bias shaft assembly is by studs 12 and nut is symmetrical above and below is installed on floating screen frame 2
Upper end；The bias shaft assembly 9 is disposed with the oil nozzle 95 of an intermittent oiling two-row ball bearing 92；The eccentric shaft 91 is logical
It crosses two-row ball bearing 92 to be mounted in eccentric shaft stool 93, is provided with sealing between the eccentric shaft stool 93 and eccentric shaft 91
Circle 94；The eccentric shaft stool 93 is mounted by means of bolts on 2 surface of floating screen frame, and the eccentric shaft stool 93 is can
Splitting piece is assembled by support body, front and rear cover and bolt, and oil nozzle 95 is also installed at 93 top of eccentric shaft stool.
As shown in figure 8, the eccentric shaft 91 be from centre to monosymmetric multi-diameter shaft, including intermediate eccentric segment 911,
With the drive section 914 of the sealing construction section 912 and bearing construction section 913, single-sided arrangement that are arranged symmetrically, drive section 914 passes through valve
Type shaft coupling 8 is connected with motor 7, and the bearing construction section 913 is mounted on eccentric shaft stool 93 by two-row ball bearing 92.
In the above-described embodiments, when flip flop screen work, motor 7 drives eccentric shaft 91 to rotate, the bias
For shaft assembly 9 along the arrangement symmetrical above and below of floating screen frame 2, the eccentric force edge that two eccentric shafts 91 generate is parallel to floating screen frame
2 direction is overlapped mutually, and is cancelled out each other along the direction perpendicular to floating screen frame 2.The fixed screen frame 1 is linked to be one with mainframe 5
Body, the eccentric force that the eccentric shaft 91 generates only drive floating screen frame 2 relative to fixed screen frame 1 in suspension arrangement component 3
It swings back and forth under effect.Elastic screen surface 11 uses polyurethane material, in the flip flop screen course of work, fixes screen frame 1 and floats
Relative motion between dynamic screen frame 2, drives elastic screen surface 11 to make " stretched and relaxed " flex motion, realizes that material sieves thoroughly.The present invention exists
While meeting job requirement, i.e., raising screening efficiency, reduce vibration noise, reduce energy consumption, while increase eccentric shaft, screen frame and
The service life of compass screen surface, and mass of vibration is alleviated, it ensure that stability when complete machine work.
What the embodiment of the present invention was announced is preferred embodiment, and however, it is not limited to this, the ordinary skill people of this field
Member, easily according to above-described embodiment, understands spirit of the invention, and make different amplification and variation, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (10)
1. a kind of floating frame double drive self-balancing type flip flop screen, it is characterised in that: including fixed screen frame (1), floating screen frame (2), hang
Hang device component (3), rubber damping pad (4), mainframe (5), motor lower supporter (6), motor (7), support of motor (8) and
Eccentric shaft assembly (9)；The mainframe (5) is fixed on the ground by snubber base, or is directly anchored on ground；It is described
Fixed screen frame (1) is mounted on mainframe (5) by rubber damping pad (4), and forms angle with ground；
The compass screen surface crossbeam and the compass screen surface crossbeam of floating screen frame (2) of the fixed screen frame (1) are alternately arranged, the fixed screen frame (1)
It is linked together with floating screen frame (2) two sides by suspension arrangement component (3)；
The motor (7) is mounted on the side of mainframe (5) by electric machine support (6), and motor (7) passes through valve type shaft coupling
Device (8) is connected with eccentric shaft assembly (9).
2. floating frame double drive self-balancing type flip flop screen according to claim 1, it is characterised in that: the suspension arrangement component
It (3) include the upper fixed block (31) and lower fixed block (32) being connected by screw rod (36), the upper fixing block (31) and fixation
Screen frame (1) is connected, and the lower fixed block (32) is connected with floating screen frame (2).
3. floating frame double drive self-balancing type flip flop screen according to claim 2, it is characterised in that: the suspension arrangement component
It (3) further include cambered surface convex block (34), cambered surface concave block (35) and fastening nut (33), the cambered surface convex block (34) and cambered surface concave block
(35) surface matches the upper and lower surfaces for being fixed on fixed block (31), and passes through screw rod by fastening nut (33)
(36) it is fastened；The cambered surface convex block (34) also matches with the surface of cambered surface concave block (35) is fixed on lower fixed block (32)
Upper and lower surfaces.
4. floating frame double drive self-balancing type flip flop screen according to claim 1, it is characterised in that: the bias shaft assembly
It (9) include eccentric shaft (91), two-row ball bearing (92), eccentric shaft stool (93), sealing ring (94), oil nozzle (95).
5. floating frame double drive self-balancing type flip flop screen according to claim 4, it is characterised in that: the eccentric shaft (91)
It is mounted in eccentric shaft stool (93) by two-row ball bearing (92), between the eccentric shaft stool (93) and eccentric shaft (91)
It is provided with sealing ring (94).
6. floating frame double drive self-balancing type flip flop screen according to claim 5 or 6, it is characterised in that: the eccentric shaft
Support (93) is mounted by means of bolts on floating screen frame (2) surface, and the eccentric shaft stool (93) is removable bulk-breaking, by propping up
Seat ontology, front and rear cover and bolt assemble, and also install oil nozzle (95) at the top of the eccentric shaft stool (93).
7. floating frame double drive self-balancing type flip flop screen according to claim 4 or 5, it is characterised in that: the floating screen frame
(2) upper end is also symmetrical above and below is equipped with eccentric shaft assembly (9), and the bias shaft assembly (9) is fixed by studs (12)
It is mounted on floating screen frame (2).
8. floating frame double drive self-balancing type flip flop screen according to claim 1, it is characterised in that: the eccentric shaft (91)
It is centre to monosymmetric multi-diameter shaft, including intermediate eccentric segment (911), with the sealing construction section (912) and axis being arranged symmetrically
The drive section (914) of construction section (913), single-sided arrangement is held, drive section (914) passes through valve type shaft coupling (8) and motor (7) phase
Even.
9. floating frame double drive self-balancing type flip flop screen according to claim 1, it is characterised in that: the flip flop screen further includes
Elastic screen surface (11), the elastic screen surface (11) are made of several pieces of rectangle compass screen surface interconnections, and rectangle compass screen surface both ends are solid respectively
It is scheduled on fixed screen frame (1) and floating screen frame (2) adjacent compass screen surface crossbeam.
10. floating frame double drive self-balancing type flip flop screen according to claim 1 or 2, it is characterised in that: the fixed screen frame
(1) buffer spring (10) are additionally provided with floating screen frame (2) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619491.0A CN110340003A (en) | 2019-07-10 | 2019-07-10 | A kind of floating frame double drive self-balancing type flip flop screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619491.0A CN110340003A (en) | 2019-07-10 | 2019-07-10 | A kind of floating frame double drive self-balancing type flip flop screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340003A true CN110340003A (en) | 2019-10-18 |
Family
ID=68174759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910619491.0A Pending CN110340003A (en) | 2019-07-10 | 2019-07-10 | A kind of floating frame double drive self-balancing type flip flop screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110340003A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235865Y (en) * | 1995-09-26 | 1996-09-25 | 鞍山矿山机械股份有限公司 | Self-balancing relaxation sifter |
| CN201728190U (en) * | 2010-07-20 | 2011-02-02 | 王海生 | Large-size flip-flow screen |
| CN106269489A (en) * | 2016-10-19 | 2017-01-04 | 中国矿业大学 | A kind of monolateral drive-type is rocking sieve |
| WO2017174253A1 (en) * | 2016-04-04 | 2017-10-12 | Stadler Anlagenbau Gmbh | Eccentric shaft for a sorting device, and sorting device |
| CN207103126U (en) * | 2017-07-30 | 2018-03-16 | 徐州普洋机械制造有限公司 | Mineral vibratory sieve |
| CN208293303U (en) * | 2018-04-24 | 2018-12-28 | 华南理工大学 | A kind of double eccentric block high-speed shaking boxes |
-
2019
- 2019-07-10 CN CN201910619491.0A patent/CN110340003A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235865Y (en) * | 1995-09-26 | 1996-09-25 | 鞍山矿山机械股份有限公司 | Self-balancing relaxation sifter |
| CN201728190U (en) * | 2010-07-20 | 2011-02-02 | 王海生 | Large-size flip-flow screen |
| WO2017174253A1 (en) * | 2016-04-04 | 2017-10-12 | Stadler Anlagenbau Gmbh | Eccentric shaft for a sorting device, and sorting device |
| CN106269489A (en) * | 2016-10-19 | 2017-01-04 | 中国矿业大学 | A kind of monolateral drive-type is rocking sieve |
| CN207103126U (en) * | 2017-07-30 | 2018-03-16 | 徐州普洋机械制造有限公司 | Mineral vibratory sieve |
| CN208293303U (en) * | 2018-04-24 | 2018-12-28 | 华南理工大学 | A kind of double eccentric block high-speed shaking boxes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110465483A (en) | A kind of pressure driving self-balancing type flip flop screen | |
| CN104624488A (en) | Linear flip-flow screen | |
| CN107185823B (en) | A kind of twin-engined drives subresonance self-synchronous vibration flip flop screen | |
| CN106269489A (en) | A kind of monolateral drive-type is rocking sieve | |
| CN105195412A (en) | Floating frame driving type flip-flop screen | |
| CN104889057A (en) | Three-degree-of-freedom flip-flow screen | |
| CN202539063U (en) | Heavy multi-step banana screening equipment | |
| CN2928273Y (en) | Fine particle classification screen | |
| CN112221961A (en) | Stone vibrating screen device with good screening effect and using method thereof | |
| CN110340003A (en) | A kind of floating frame double drive self-balancing type flip flop screen | |
| CN202539064U (en) | Heavy-duty multi-stage screening equipment | |
| CN104959305B (en) | A kind of flip flop screen stagewise walking beam amplitude regulating device | |
| CN112642702B (en) | High-efficient double-deck multistage shale shaker | |
| CN107442401B (en) | Double-mass anti-resonance vibrating screen | |
| CN106238307A (en) | Asynchronous sieve | |
| CN109225827A (en) | A kind of multiaxis driving forced vibration flip flop screen | |
| CN109351594A (en) | A kind of sieve for vibration screening | |
| CN109092673A (en) | A kind of embedded flip flop screen of double drive | |
| CN208786874U (en) | A kind of synchronously driven vibration flip flop screen | |
| CN201799400U (en) | Coal water slurry vibrating screen | |
| CN214682862U (en) | Gear forced synchronous elliptical orbit resonance screen | |
| CN203124253U (en) | Heavy type multi-segment screening device | |
| CN208627799U (en) | Exciting force is oriented parallel to the flip flop screen of compass screen surface | |
| CN202037123U (en) | Single-layer screening device | |
| CN2235865Y (en) | Self-balancing relaxation sifter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |
|
| RJ01 | Rejection of invention patent application after publication |