CN104607383B - Coal classifying screen - Google Patents
Coal classifying screen Download PDFInfo
- Publication number
- CN104607383B CN104607383B CN201510037777.XA CN201510037777A CN104607383B CN 104607383 B CN104607383 B CN 104607383B CN 201510037777 A CN201510037777 A CN 201510037777A CN 104607383 B CN104607383 B CN 104607383B
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- screen axis
- screen
- grating
- axis
- roller
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- 239000003245 coal Substances 0.000 title claims abstract description 71
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 29
- 238000007599 discharging Methods 0.000 abstract description 16
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 238000012216 screening Methods 0.000 description 33
- 230000005540 biological transmission Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 244000144985 peep Species 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 241000251131 Sphyrna Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller 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
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of coal classifying screen, drapery panel（14）It is obliquely installed in charging aperture（23）Lower section, roller screen axis（3）With grating screen axis（4）Both ends pass through bearing block respectively（17）Installed in casing（2）Both sides；Roller screen axis（3）With grating screen axis（4）Inside it is provided with guide spiral（6）, guide spiral（6）By positive guide spiral（6.1）With reverse guide spiral（6.2）Composition, positive guide spiral（6.1）It is fixedly mounted on roller screen axis（3）Or grating screen axis（4）Internal side, reverse guide spiral（6.2）It is fixedly mounted on roller screen axis（3）Or grating screen axis（4）Internal opposite side；Roller screen axis（3）With grating screen axis（4）Both ends be respectively arranged with anti-blockage holes（10）.Cloth of the present invention uniformly, in strong shock resistance, compass screen surface and screen axis not putty, meet two or more discharging particle diameters, that spare part is changed in maintenance is convenient.
Description
Technical field
The present invention relates to a kind of screening plant of thickness coal charge, is related specifically to coal, the coal classifying screen in mine field.
Background technology
The coal gangue particle of thermal power plant burning in circulating fluid bed boiler certain proportion particle diameter, the coal charge in the coal charge of colliery
It need not be repeated containing substantial amounts of qualified particle diameter broken, it is therefore desirable to which screening machine separates qualified particle diameter broken to mitigate
Amount, more conforms to boiler combustion curve.And in Coal Transportation System the screening efficiency of screening machine, chute blockage situation, cloth whether
Uniformly, the combustion curve that the parameters such as accessory cycle directly affect boiler is changed in maintenance.
Whether the screening efficiency of screening machine, chute blockage situation, cloth are uniform, will directly affect the benefit of follow-up disintegrating apparatus.
Improve screening efficiency benefit be：1st, disintegrating machine main motor power consumption is reduced；2nd, mitigated and crushed, it is bent more to meet burning
Line；3rd, the reduction for the treatment of capacity can extend the service life of grinder hammerhead.
Chute blockage phenomenon is the homely food of Coal Conveying System of Power Plant, and particularly in coal moisture content weight, gangue amount is big, coal charge
Especially prominent when poor fluidity, the compass screen surface conveying for resolving screening machine is equal to nip off the root of chute blockage phenomenon generation
Source.
Cloth is uneven and the weakness of most of screening machine, uniform distribution are had an advantage that to follow-up disintegrating machine：1st, break
Broken owner's rotor tup even wearing；2nd, mitigate main rotor to beat with one heart, extend the main motor life-span；3rd, it is more conducive to the tune of particle diameter
Section.
At present, power plant's screening machine is mainly using vibratory sieve, roto-siofter, intersection sieve, roller picker etc.；Vibratory sieve shortcoming：
Contributing, small, screening efficiency is low, frequent chute blockage；Roto-siofter shortcoming：Contributing, small, screen rate is low, frequent chute blockage, is unable to cloth；Intersect
Sieve shortcoming：Power of motor is big, blade wear is serious, impact resistance is poor, the time between overhauls(TBO) is short；Roller picker shortcoming：Screening efficiency is low.
Such as a kind of entitled vibrating-type roller screen（CN102310041A）Screening plant, it include screen box, roller bearing
Formula compass screen surface, vibrator, vibration damping support device and base, compass screen surface are connected to form by multigroup roller bearing and passed by vibrator vibration plus gear
It is dynamic, 0-90 ° of compass screen surface angle, it is exactly that sieve plate has made roller bearing into and is connected in fact.The roller picker is complicated, and screen axis is solid screen axis,
Effectively screening only several screen slots, screening efficiency is low；And power of motor is big, poor practicability.
And for example a kind of entitled New type roller picker intersects sieve（CN101091950A）Screening plant, it include sieve
Case, driver plate, screen axis, decelerator, coal charge complete conveying and thoroughly sieve, driver plate after the device driver plate puts into operation under the rotation of driver plate
And blade wear is serious and changes difficult；Feeding mouth front end impact resistance is poor；The screening of more particle diameter coal charges can not be realized.
The content of the invention
It is solve the deficiencies in the prior art, there is provided a kind of new coal classifying screen, solve tradition the mesh of the present invention
Screening plant screening efficiency is low, undercapacity, is unable to poor cloth, serious wear, impact resistance, compass screen surface putty, blocks up in screen axis
Material, overhaul the problems such as difficult, the replacing accessory cycle is short.
The present invention is to be achieved through the following technical solutions：Coal classifying screen, it includes casing, drapery panel, multiple decelerations
Motor, roller screen axis and grating screen axis, drapery panel are obliquely installed fixed in the lower section of charging aperture, roller screen axis and grating screen axis
On the output shaft of reducing motor；The both ends of roller screen axis and grating screen axis are arranged on casing two by bearing block respectively
Side；
Guide spiral is provided with described roller screen axis and grating screen axis, guide spiral is by positive guide spiral and instead
Formed to guide spiral, positive guide spiral is fixedly mounted on the side inside roller screen axis or grating screen axis, reverse guide spiral shell
Rotation is fixedly mounted on the opposite side inside roller screen axis or grating screen axis；
The both ends of roller screen axis and grating screen axis are respectively arranged with anti-blockage holes.
Described drapery panel is drawing and pulling type drapery panel.
Described roller screen axis is made up of seamless steel pipe, and roller screen axis is provided with screen slot.
Described grating screen axis includes grating and flange plate, and grating is uniformly across the through hole on flange plate, shape between grating
Into gap.
Thread form demarcation strip is provided between the top at roller screen axis and grating the screen axis both ends and the inwall of casing.
Coal with classifying screen include casing, roller screen axis, grating screen axis, thread form demarcation strip, guide spiral, particle diameter peep hole,
Grating, screen slot, anti-blockage holes, blanking channel, flange plate, compass screen surface peep hole, drawing and pulling type drapery panel, cutting plate, detachable power transmission shaft,
It is bearing block, reducing motor, chain, sprocket wheel, sealing device, support frame, charging aperture, the first qualified particle diameter discharging opening, second qualified
Particle diameter discharging opening, off grade size discharging opening.Coal charge is entered in body by cabinet top charging aperture, and drapery panel breaks belt column
Shape coal charge, dropped in elliptic cylindrical shape on the compass screen surface being made up of some roller screen axis and grating screen axis, coal charge is completed on compass screen surface
Cloth, shock resistance, conveying, screening function.
Every screen axis（Roller screen axis or grating screen axis）Both ends are provided with thread form demarcation strip, and the effect of thread form demarcation strip is point
Every coal charge derived from coal charge derived from guide spiral institute in compass screen surface coal charge and screen axis and other manner, not conforming in screen slot is stuck in
Lattice particle diameter coal charge is pushed under the promotion of guide spiral and dropped in blanking channel.
Every screen axis both ends are provided with power transmission shaft, sealing device, bearing block, sprocket wheel, chain, drive chain to turn by reducing motor
Move so as to reality screening and transfer function.When coal charge comes grating screen axis, the coal charge of qualified particle diameter is fallen into grating screen axis, is led to
The grating screen axis centrifugal action for crossing high-speed rotation directly falls into corresponding qualified discharging opening by screen slot；Particle diameter is equal to or bigger
In screen slot gap width coal charge by the guide spiral in grating screen axis by the coal charge being stuck in screen slot from grating screen axis both ends
Anti-blockage holes are discharged, the blanking channel between thread form demarcation strip and casing.
Guide spiral in screen axis is divided into positive and negative two kinds of angles, it is ensured that forward direction guide spiral and reverse guide when screen axis rotates
Coal charge is pushed to the anti-blockage holes at screen axis both ends to discharge by spiral respectively, and compass screen surface angle is arranged to -30~75 °.Guide spiral
It can be replaced by stock guide, stock guide is positive, is reversely welded in screen axis, and function is identical with guide spiral.
Described drawing and pulling type drapery panel uses wear resistant and impact resistant material, and main function is cloth, and drawing and pulling type drapery panel can be more
Change.
Described roller screen axis is made by seamless steel pipe, and main function is cloth, shock resistance, conveying, screening.It is described
Grating screen axis include flange plate, grating, guide spiral composition；Grating is in flange plate and the method for being connected power transmission shaft on grating screen axis
1-30 roots are blocked between blue piece and form anti-blockage holes；Screen axis rotates, and coal charge is under the push effect of guide spiral, from screen axis both ends
Anti-blockage holes discharge.Grating is welded on flange plate.
Described roller screen axis and grating screen axis length, diameter, revolution all same.
Described grating material is not limited to reinforcing bar, and grating shape is not limited to circular, square.
Described reducing motor can drive one or some screen axis according to duty requirements.
Described screen axis shape can be circle, polygon etc..
Described anti-blocking hole shape is not limited to rectangle.
Coal all can be made up of with the compass screen surface in classifying screen roller screen axis, or is all made up of grating screen axis, also can be by
Roller screen axis is present in coal classifying screen with grating screen axis mixing.
Described grading discharge refers to the width size by changing screen slot on screen axis, by being realized after the separation of cutting plate
Multi-stage screening, the gap width of screen slot are gradually increased by charging aperture to off grade size discharging opening.
The present invention solves problems with：
（1）Screening efficiency：The height of screening efficiency depend on screen slot area size, this coal with classifying screen because in screen axis not
Chute blockage material event screening efficiency is high.
（2）Impact-resistant abrasion-proof ability：When being dropped to after big block coal charge is by drawing and pulling type drapery panel cloth on roller screen axis, rolling
Shaft screen axle can bear stronger impulsive force.
（3）Cloth function：Coal charge drops on drawing and pulling type drapery panel that to break column structure be first time cloth；From drawing and pulling type cloth
It is second of cloth that flitch, which drops to roller screen axis to break ellipsoidal structures again,；It is the by the conveying of the compass screen surface wave of rotation
Cloth three times, cloth is uniform, and the coal charge ulking thickness of compass screen surface is thin, and the screening percentage of coal charge is high.
（4）Not putty：Compass screen surface is made up of screen axis, and every screen axis is provided with power transmission shaft, chain, sprocket wheel, bearing block, and slow down electricity
Machine connection chain rotates therefore compass screen surface conveys not putty by force.Putty, the qualified coal charge less than screen slot do not fall into sieve in grating screen axis
In bar screen axis, grating screen axis centrifugal force is rotated to throw away the coal charge less than screen slot and dropped to below compass screen surface in qualified tapping channel；When
The coal charge of equal or slightly larger than screen slot is dropped to when in grating screen axis by the guide spiral or guide piece that are set in grating screen axis by force
The anti-blockage holes discharge at screen axis both ends is pushed to, coal charge is discharged in the blanking channel between casing and thread form demarcation strip, therefore grating sieves
Not putty in axle.
（5）Maintenance is changed convenient：When needing to change the screen axis of abrasion, screen axis is separated with power transmission shaft change again it is new
Screen axis.Change drawing and pulling type drapery panel and the drapery panel of abrasion is then directly extracted out to the drawing and pulling type drapery panel more renewed.
（6）A variety of particle diameter operating modes：When operating mode need to sieve two or more particle diameters, the screen slot diameter on changeable screen axis comes real
Existing a variety of particle diameter screenings.
Brief description of the drawings
Fig. 1 is the front view of coal classifying screen of the present invention
Fig. 2 is the top view of coal classifying screen of the present invention
Fig. 3 is the side view of coal classifying screen of the present invention
Fig. 4 is thread form demarcation strip schematic diagram of the present invention
Fig. 5 is flange plate schematic diagram of the present invention
Fig. 6 is roller screen axis schematic diagram of the present invention
Fig. 7 is grating screen axis schematic diagram of the present invention
In figure, 1- coal classifying screens, 2- casings, 3- roller screen axis, 4- grating screen axis, 5- thread form demarcation strips, 6- guide spiral shells
Rotation, 6.1- forward direction guide spirals, the reverse guide spirals of 6.2-, 7- particle diameter peep holes, 8- gratings, 9- screen slots, 10- anti-blockage holes, 11-
Blanking channel, 12- flange plates, 13- compass screen surface peep holes, 14- drapery panels, 15- cutting plates, the detachable power transmission shafts of 16-, 17- bearings
Seat, 18- reducing motors, 19- chains, 20- sprocket wheels, 21- sealing devices, 22- support frames, 23- charging apertures, the first qualified grains of 24-
Footpath discharging opening, the qualified particle diameter discharging openings of 25- second, 26- off grade size discharging openings.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1, Figure 2, Figure 3 shows, coal classifying screen 1, it includes casing 2, roller screen axis 3, grating screen axis 4, thread form point
Dividing plate 5, guide spiral 6, particle diameter peep hole 7, grating 8, screen slot 9, anti-blockage holes 10, blanking channel 11, flange plate 12, compass screen surface observation
Hole 13, drawing and pulling type drapery panel 14, cutting plate 15, detachable power transmission shaft 16, bearing block 17, reducing motor 18, chain 19, sprocket wheel
20th, sealing device 21, support frame 22, charging aperture 23, the first qualified particle diameter discharging opening 24, the second qualified particle diameter discharging opening 25, no
Qualified particle diameter discharging opening 26.
Coal is with classifying screen mainly by one piece of drawing and pulling type drapery panel 14, two pieces of thread form demarcation strips 5, a roller screen axis 3 and seven
Root grating screen axis 4 forms, and is provided with positive guide spiral 6.1 and reverse guide spiral 6.2 in screen axis, between screen axis both ends casing 2
It is respectively provided with one piece of thread form demarcation strip 5 and forms blanking channel 11, screen axis both ends is provided with anti-blockage holes 10, and screen axis both ends are stretched out outside casing 2
Provided with reducing motor 18, sprocket wheel 20, chain 19, bearing block 17, power transmission shaft rotates clockwise.
Drawing and pulling type drapery panel on coal classifying screen more renews drapery panel 14 because can conveniently be extracted out after abrasion.
As shown in Figure 1, Figure 2, Figure 6 shows, roller screen axis 3 is made up of seamless steel pipe, is provided with roller screen axis 3 several for leaking
The qualified screen slot 9 of material, the inside of roller screen axis 3 are provided with positive and negative guide spiral；The both ends of roller screen axis 3 are provided with anti-blockage holes 10；Rotary screen
The both ends of axle 3 are provided with detachable power transmission shaft 16.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 7, grating screen axis 4 is made up of flange plate 12, grating 8, guide spiral 6, sieve
Gap between bar and grating forms screen slot 9；The both ends of grating screen axis 4 block several gratings 8 and form anti-blockage holes 10.Grating screen axis 4
Both ends are provided with detachable power transmission shaft 16.
As shown in figure 1, the situation of compass screen surface screening conveying can be observed by compass screen surface peep hole 13, and qualified particle diameter can be seen by particle diameter
Hole 7 is examined to observe.
As shown in Figure 1 and Figure 2, coal is formed with classifying screen by roller screen axis 3 and the mixing of grating screen axis 4, and Sieving and casing is by feeding
Mouth 23 constantly increases to off grade size discharging opening 26；First five root screen axis composition compass screen surface screen slot gap be it is consistent, behind three
The gap of root grating screen axis 4 is another qualified particle diameter and is more than the screen slot of above five screen axis.Screen axis lower end is provided with and can distinguished
The cutting plate of different qualified material particle diameters.
The operation principle process of present example is as follows：
If it is 800t/h to carry out coal charge (gangue)；Feed particle diameter 0-200mm；Existing operating mode need to be carried out to two kinds of particle diameter coal charges
Screening, 0~10mm, 10~30mm.
As shown in Figure 1, Figure 2, Figure 3 shows, coal charge 800t/h falls to drop on drawing and pulling type drapery panel 14 from charging aperture 23 breaks coal
Expect column structure；Coal charge is fallen on roller screen axis 3 through drawing and pulling type drapery panel 14 again breaks ellipsoidal structure again, and coal charge expands
Dissipate, sieve, conveying；Coal charge come on the compass screen surface being made up of seven grating screen axis 4 sieved, cloth, conveying, screen axis with slow down
Motor 18 is connected.Coal charge is uniformly diffused into whole compass screen surface.Roller screen axis 3 is provided with several 10mm screen slot 9, after roller screen axis 3
There are four groups of grating screen axis 4 in face, there is several 10mm screen slot 9 on every grating screen axis 4.Coal charge is because the rotation of screen axis is on compass screen surface
Awave conveying screening is formd, particle diameter is fallen into screen axis less than or equal to 10mm coal charge, and the coal charge less than 10mm is from sieve
Seam 9 is thrown away, and equal or slightly larger than 10mm coal charge promotes conveying by the guide spiral 6 in screen axis, anti-blocking from screen axis both ends
The discharge of hole 10 drops to 11 and first qualified discharging opening 24 of blanking channel, completes the screening of 0-10mm coal charges.10-30mm coal charge warp
Later three groups of grating screen axis 4 have been dropped in 10-30mm the second qualified discharging opening 25 and blanking channel 11 after sieving, and complete 10-
The screening of 30mm coal charges.Last 30-300mm coal charges drop to off grade size discharging opening 26.
Claims (5)
1. coal classifying screen, it is characterised in that：It includes casing（2）, drapery panel（14）, multiple reducing motors（18）, rotary screen
Axle（3）With grating screen axis（4）, roller screen axis（3）It is provided with screen slot（9）, drapery panel（14）It is obliquely installed in charging aperture（23）'s
Lower section, roller screen axis（3）With grating screen axis（4）It is fixedly mounted on reducing motor（18）Output shaft on；Roller screen axis（3）With
Grating screen axis（4）Both ends pass through bearing block respectively（17）Installed in casing（2）Both sides；
Described roller screen axis（3）With grating screen axis（4）Inside it is provided with guide spiral（6）, guide spiral（6）By positive guide
Spiral（6.1）With reverse guide spiral（6.2）Composition, positive guide spiral（6.1）It is fixedly mounted on roller screen axis（3）Internal
Side or grating screen axis（4）Internal side, reverse guide spiral（6.2）It is fixedly mounted on roller screen axis（3）Internal is another
Side or grating screen axis（4）Internal opposite side；
Roller screen axis（3）With grating screen axis（4）Both ends be respectively arranged with anti-blockage holes（10）.
2. coal classifying screen according to claim 1, it is characterised in that：Described drapery panel（14）For drawing and pulling type cloth
Plate.
3. coal classifying screen according to claim 1, it is characterised in that：Described roller screen axis（3）By seamless steel control
Into.
4. coal classifying screen according to claim 1, it is characterised in that：Described grating screen axis（4）Including grating（8）With
Flange plate（12）, grating（8）Uniformly across flange plate（12）On through hole, grating（8）Between form gap.
5. coal classifying screen according to claim 1, it is characterised in that：The roller screen axis（3）With grating screen axis（4）Two
The top at end and casing（2）Inwall between be provided with thread form demarcation strip（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037777.XA CN104607383B (en) | 2015-01-26 | 2015-01-26 | Coal classifying screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037777.XA CN104607383B (en) | 2015-01-26 | 2015-01-26 | Coal classifying screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104607383A CN104607383A (en) | 2015-05-13 |
| CN104607383B true CN104607383B (en) | 2017-12-22 |
Family
ID=53142179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510037777.XA Active CN104607383B (en) | 2015-01-26 | 2015-01-26 | Coal classifying screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104607383B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722472A (en) * | 2015-03-12 | 2015-06-24 | 马琳 | Coal classifying screen |
| CN110433949A (en) * | 2018-05-04 | 2019-11-12 | 陕西未来能源化工有限公司 | A kind of coal screening device and its application method |
| CN112170157B (en) * | 2020-11-02 | 2022-02-15 | 四川重盟电力设备制造有限公司 | Non-blocking screening machine |
| CN112958450B (en) * | 2021-02-01 | 2023-03-31 | 佛山市南海华昊华丰淀粉有限公司 | Product processing is with modified starch isolation impurity cleaning equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2714167Y (en) * | 2004-07-28 | 2005-08-03 | 陆同仁 | Screening machine with multiple cylinders |
| US8978895B2 (en) * | 2008-10-01 | 2015-03-17 | Rickey E. Wark | Self-cleaning coal separator grids with multiple cleaning combs |
| CN202079035U (en) * | 2011-05-27 | 2011-12-21 | 北京泛欧瑞得科技有限公司 | Novel diamond roll screen |
| CN202823486U (en) * | 2012-08-21 | 2013-03-27 | 广州尧先机械有限公司 | Powder particle crumbler |
| CN103537431B (en) * | 2013-10-24 | 2016-03-30 | 马琳 | Coal roller picker |
| CN203837434U (en) * | 2014-04-04 | 2014-09-17 | 安徽天叶肥料有限公司 | Device for recovering hot dust of secondarily-dried fertilizer |
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- 2015-01-26 CN CN201510037777.XA patent/CN104607383B/en active Active
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| CN104607383A (en) | 2015-05-13 |
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Effective date of registration: 20181207 Address after: 610000 Xinya East Street, Chengdu High-tech Zone, Sichuan Province Patentee after: Sichuan League Power Equipment Manufacturing Co., Ltd. Address before: 643033 No. 11, Group II, Xintangcun, Dengguan Town, Yantan District, Zigong City, Sichuan Province Patentee before: Ma Lin |