CN103071618B - Vibration classifying screen device - Google Patents
Vibration classifying screen device Download PDFInfo
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- CN103071618B CN103071618B CN201310043511.7A CN201310043511A CN103071618B CN 103071618 B CN103071618 B CN 103071618B CN 201310043511 A CN201310043511 A CN 201310043511A CN 103071618 B CN103071618 B CN 103071618B
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- pulp
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- screen frame
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- 239000004033 plastic Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 16
- 230000005484 gravity Effects 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- 239000011440 grout Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 238000012216 screening Methods 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 9
- 239000011707 mineral Substances 0.000 description 9
- 239000010866 blackwater Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 210000004722 stifle Anatomy 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
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- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention provides a vibration classifying screen device which comprises a feeding groove, a pulp groove, a fine pulp branch groove, an upright screen frame and a vibration source, wherein the feeding groove is used for automatically flowing pulp into the upright screen frame, the vibration source is connected to the upright screen frame and used for driving the upright screen frame to vibrate, the upright screen frame is supported in the pulp groove and comprises a plurality of vertical guide grooves used for accommodating a screening unit, the screening unit comprises an upright rectangular frame and screen surfaces arranged on two vertical surfaces of the rectangular frame, a coarse pulp flow passage is formed on the outer side of each screen surface and connected with a lower pulp outlet of the pulp groove, a fine pulp flow passage is formed between the two screen surfaces and connected with the fine pulp branch groove through a soft flow groove, and the fine pulp branch groove sends the fine pulp to the outer side of the pulp groove through the wall of the pulp groove. The vibrating classifying screen device can obviously reduce the equipment weight, equipment volume, occupied area and installed power of unit screen surface area, and reduce the construction cost and use cost of the classifying screen when the classifying screen is used for large-scale production.
Description
Technical field
The present invention relates to Mineral Engineering mineral manufacture field, in particular to a kind of vibration separation screen device, be suitable for black water and other ore pulp by fine grading.
Background technology
Black water and other ore pulp press the equipment of fine grading, the plane vibration sieve of current employing is more with straight-line oscillation, non-immersion installation application, but because its floor space is large, disposal ability is little and uneconomical, therefore it is very little or by the occasion of coarse grain classification to be only used in ore pulp amount.And more with hydrocyclone application in hydraulic classifier, because its floor space is little, disposal ability is large, and good economy performance, itself does not have moving link to make maintenance little, therefore is widely used in actual production, and the ore pulp amount that particularly can process after knot group is very large.
But the partition size of cyclone is very uncertain, have phase difference order of magnitude, this produces to downstream and has serious consequences: if partition size is bigger than normal, overflow goes flotation will run slightly, if partition size is less than normal, underflow goes interference bed or helicla flute will lower efficiency too greatly because of differential.The reason that this thing happens is that the partition size of cyclone is relevant with many factors, and the famous maximum tangential velocity track theory of Pang Xue poem shows: d
50=f (D
c, D
o, D
i, L
1, L
2, α Y
m, Y
s, μ, ρ), in formula, structural parameters D, L, α are by general condition and target design, are fixed number after manufacturing; Not quite clear during ore pulp parameter Y, μ type selecting, be parameter during application; Feed pressure head ρ is relevant with pipe network with supporting pump, and pump performance has inapt deviation, and resistance of pipe system is usually estimated and even ignored.Therefore, the cyclone product of businessman through type selecting, supporting, install after, it is more that its actual partition size often departs from desired value.And the two identical difficulty will be made in engineering reality very large.
In addition, the partition size of cyclone is very large by the impact of ore particle density, in practical operation, cannot avoid slightly, light grains enters overflow and thin, heavy particle enters underflow.It is thick that the former makes flotation run, and the latter reduces separation of coarse slime efficiency or increases the load of coarse grain slime recovery sieve.
In addition, classifying cyclone must be equipped with the ore slurry pump of enough lifts to realize pressure feed, and the energy consumption therefore processing unit volume ore pulp is higher.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to provide a kind of vibration separation screen device, significantly can reduce the weight of equipment of unit cover surface, equipment volume, floor space and installed power, reduce classifying screen for construction cost during large-scale production, and do not disturb by mineral density according to mineral granularity classification, effectiveness of classification significantly improves; Pulp gravity flow feeding and need not forced feed, the energy consumption thus processing unit volume ore pulp significantly reduces, and its use cost is corresponding reduction also.
For reaching above-mentioned purpose, the present invention proposes a kind of vibration separation screen device, comprise feeder trough, pulp tank, screened stock props up groove, upright screen frame and vibration source, described feeder trough is used in pulp gravity flow to upright screen frame, described vibration source is connected to upright screen frame and vibrates in order to drive upright screen frame, described upright screen frame to be supported in pulp tank and to comprise multiple vertical guide groove in order to hold sieve unit, described sieve unit comprises a vertical rectangle frame and is installed on the compass screen surface on two facades of rectangle frame, the bottom grout outlet of described pulp tank is connected for rough slurry runner outside described compass screen surface, form screened stock runner and connect described screened stock by a plastic flow groove between described two compass screen surfaces and prop up groove, described screened stock props up screened stock is delivered to pulp tank by groove outside through the wall of pulp tank.
Further, be provided with vibration isolator between described upright screen frame and pulp tank, the upper erection support of this vibration isolator is positioned at the upper outside of upright screen frame, and lower erection support is positioned at the upper inner of pulp tank.
Further, the bottom surface of described vertical rectangle frame is a sieve plate, passes from the sieve aperture of this sieve plate in order to make the thin ore pulp through compass screen surface.
Further, the top of described upright screen frame is connected with pressure sieve thick stick, in order to described sieve unit to be pressed in upright screen frame.
Further, the bottom of described upright screen frame is fixed with horizontal joist, in order to sieve unit described in support.
Further, described horizontal joist is formed with some interfaces, and described plastic flow groove connects screened stock runner by this interface and screened stock props up groove.
Further, the upper surface of described horizontal joist is being formed with seam perpendicular to compass screen surface direction, for preventing sieve unit in this direction slippage.
Further, described screened stock props up groove and comprises and middle open trough and open at both ends pipeline section, and described middle open trough is connected with described plastic flow groove.
Further, the wallboard inwall of described pulp tank is provided with the some flange-interfaces in order to mounting sleeve assembly, and this thimble assembly entangles in order to the two ends of each screened stock being propped up groove and the thin ore pulp propped up by screened stock in groove sends pulp tank.
Further, described feeder trough is positioned at the top of pulp tank, and comprises dry groove and to be positioned at below dry groove and connected groove, and the bottom land of described dry groove and the groove wall of each groove all have appropriate hole.
From the above technical solution of the present invention shows that, beneficial effect of the present invention is: compass screen surface can in limited space intensive layout, when pressing fine grading to black water or other ore pulp, compared with sieving with existing equipment plane vibration, the weight of equipment of its unit cover surface, equipment volume, floor space and installed power all significantly reduce, thus significantly reducing for construction cost during large-scale production and use cost.
Compared with existing equipment hydrocyclone, vibration separation screen device of the present invention does not disturb by mineral density in strict accordance with mineral granularity classification, and thus effectiveness of classification significantly improves; Pulp gravity flow feeding and need not forced feed, the energy consumption thus processing unit volume ore pulp significantly reduces, and its use cost is corresponding reduction also.When pressing fine grading to black water or other ore pulp, because technology, economic two aspects all exist advantage, now widely used hydrocyclone can be replaced.
Accompanying drawing explanation
Fig. 1 is the structural representation of the vibration separation screen device of preferred embodiment of the present invention.
Fig. 2 is the structural representation in the another direction of Fig. 1 embodiment.
Detailed description of the invention
In order to more understand technology contents of the present invention, institute's accompanying drawings is coordinated to be described as follows especially exemplified by specific embodiment.
As shown in Figure 1, according to preferred embodiment of the present invention, vibration separation screen device comprises feeder trough 1, pulp tank 2, screened stock props up groove 3, upright screen frame 4 and vibration source 5, feeder trough 1 in order to by pulp gravity flow in upright screen frame 4, vibration source 5 is connected to upright screen frame 4 and vibrates in order to drive upright screen frame 4, upright screen frame 4 to be supported in pulp tank 2 and to include multiple vertical guide groove in order to hold sieve unit 6, sieve unit 6 comprises a vertical rectangle frame and is installed on the compass screen surface 7 on two facades of rectangle frame, the outside of each compass screen surface 7 is rough slurry runner and is connected to the bottom grout outlet of pulp tank 2, form screened stock runner and connect screened stock by a plastic flow groove 8 between two compass screen surfaces 7 of sieve unit 6 and prop up groove 3, this screened stock props up screened stock is delivered to pulp tank 2 by groove 3 outside through the wall of pulp tank 2.
Shown in figure 1, feeder trough 1 is positioned at the top of pulp tank 2, and it comprises dry groove 1a and to be positioned at below it and connected groove 1b, the two welding.The bottom land of dry groove 1a and the groove wall of each groove 1b all have appropriate hole, makes ore pulp be given in each groove 1b equably from dry groove 1a, in the space between each sieve unit 6 flowing uniformly to again upright screen frame 4 from groove 1b, ensure the even material feeding of each compass screen surface.
During work, must keep balancing with thick, thin ore pulp outflow from the inbound traffics of pulp tank 2 top gravity flow feeding, keep certain to make mineral syrup liquid in groove.For preventing because become a mandarin ore pulp characteristic and flowed fluctuation thereof can not keep compared with the liquid level in ambassador's pulp tank 2, the top of pulp tank 2 can arrange overfall.
Pulp tank 2 can form with Plate Welding, also can use the pre-buried casting of armored concrete for main equipment.The top of pulp tank 2 is rectangle, to adapt to, to hold upright screen frame 4; Its underpart is that taper is to collect concentrated rough slurry; Be long sidewall panel in the middle part of it, this wallboard inwall is provided with the flange-interface of some centerings, and for mounting sleeve assembly 15, each thimble assembly 15 entangles in order to the two ends of each screened stock being propped up groove 3, plays location, supports and seal the effect that each screened stock props up groove 3.The upper weld hanging support of pulp tank 2, its underpart welding supporting leg.Feeder trough 1 also can make of Plate Welding.Respectively weld a bearing at the two ends of dry groove 1a, connect with the hanging support of the securing members such as bolt with pulp tank 2 short brink respectively.
Upright screen frame 4 is made up of the pair of side plates be parallel to each other, a pair riser and several piece gusset, produces several rectangular areas thus, arranges some vertical guide grooves 7 in each region, in order to insert and to hold sieve unit 6.Bottom, all rectangular areas arranges horizontal joist, and in order to each sieve unit 6 of support, horizontal joist forms some interfaces, and screened stock runner and screened stock are propped up groove 3 by these interfaces and be connected by plastic flow groove 8.
Horizontal joist is welded in the bottom of upright screen frame 4.The top of horizontal joist in vertical compass screen surface direction with seam 14, in case sieve unit 6 is in this direction slippage.Joist bottom under seam gets out unthreaded hole, to connect plastic flow groove 8 with bolt, press strip.
Plastic flow groove 8 is in order to provide the flow-guiding channel of screened stock, and it adopts rubber slab or folder cloth offset plate bonding or sew up and forms, and quality is soft, wear-resisting, antifatigue.Plastic flow groove 8 upper end connects with the interface of horizontal joist bottom, and the top that its lower end and screened stock prop up groove 3 utilizes bolt, press strip connects.Plastic flow groove 8 can not hinder compass screen surface to vibrate.
The middle part that screened stock props up groove 3 is upwards open trough, and be connected with plastic flow groove 8, two ends are the uncovered pipeline section of side direction, form respectively with steel plate, steel-pipe welding.The wallboard inwall of pulp tank 2 is provided with flange-interface, flange-interface is used for mounting sleeve assembly 15, each thimble assembly 15 entangles in order to the two ends of each screened stock being propped up groove 3 and the thin ore pulp propped up by screened stock in groove 3 sends pulp tank 2, thimble assembly 15 comprises flange sleeve, stifle or elbow, uses bolted respectively on the flange-interface of pulp tank.
The compass screen surface 7 that sieve unit 6 comprises a vertical rectangle frame and is installed on respectively on two facades of rectangle frame, this rectangle frame is welded by the sheet material of light metal or plastics, form a rectangle frame, two facades of rectangle frame install compass screen surface 7 respectively, this compass screen surface 7 has a wire screen and the sieve plate for laying, supporting wire screen, in order to make thin ore pulp through.The bottom surface of rectangle frame is also a sieve plate, to make the thin ore pulp through compass screen surface 7 flow to screened stock from the sieve aperture of sieve plate prop up groove 3.
Screened stock runner is formed between two compass screen surfaces 7 of sieve unit 6, by the interface plastic flow groove 8 on horizontal joist, the screened stock in screened stock runner and pulp tank 2 is propped up groove 3 in the bottom of each sieve unit 6 to connect, each screened stock props up the outside that groove 3 delivers to thin ore pulp through the wall of pulp tank 2 pulp tank 2.The outside of the compass screen surface 7 of each sieve unit is rough slurry runner, the compass screen surface 7 of vibration makes rough grain can not adhere to blocking sieve aperture, and near compass screen surface, forming dense district and gravity is deposited to grout outlet bottom pulp tank, the pulp valve 12 being positioned at grout outlet can control discharge capacity and the concentration of rough slurry.Be full of ore pulp in pulp tank 2 during work, compass screen surface 7 is all immersed in inside ore pulp.
In the present embodiment, after each sieve unit 6 is inserted vertical screen frame 4, load onto a pressure sieve thick stick 9 and form a sieve railway carriage or compartment.Pressure sieve thick stick 9 use section steel manufacture, in order to be pressed in upright screen frame 4 by described sieve unit 6, its two ends connect with the otic placode be welded on upright screen frame 4 side plate with bolt respectively.Sieve railway carriage or compartment with vibration isolator 10 for fulcrum block drops in trough, the upper bracket 10a of vibration isolator 10 is welded in the upper outside of upright screen frame 4, undersetting 10b is welded in the upper inner of pulp tank 2, and vibration isolator 10 is assemblied between upper bracket 10a and undersetting 10b, and this vibration isolator is a spring.
For mini-plant, the connecting mode of the side plate of upright screen frame 4, riser, gusset can adopt welding manner, for can adopting articulation hole main equipment and using bolt-connection.
The rectangle frame of sieve unit 6 connects with bolt, pressing plate or press strip, tongue-and-groove with between compass screen surface 7.Sieve unit 6 compresses with bolt, pressure sieve thick stick 9 in the vertical guide groove of upright screen frame 4, pulls down pressure sieve thick stick 9 and takes out sieve unit 6 i.e. replaceable compass screen surface.
The top of upright screen frame 4 is provided with vibration source 5 and for driving upright screen frame 4 to vibrate, in the present embodiment, this vibration source 5 is biaxial inertial vibrator, mainly comprise motor, flexible coupling, vibrator unit (comprising: minor axis, eccentric block, bearing, bearing block), Hooks coupling universal coupling, safety guard etc., two bearing blocks use upper at the upper bracket 10a of vibration isolator 10 of bolted respectively.Biaxial inertial vibrator, according to the self synchronization theory of unforced contact, adopts Dual-motors Driving.The steel structure basis of each motor is formed by after two hanging supports variations of pulp tank 2.Certainly, vibration source 5 can also adopt other vibrating device, such as two vibrating motors.
Because compass screen surface vibration is just in order to repel loose rough grain, prevent its attachment blocking sieve aperture, and the another requirement having conveying on-the-sieve material unlike plane vibration sieve.Therefore, vibration parameters adopts high-frequency, little amplitude.Sieve aperture should be more than or equal to the screen size of requirement in the apparent size of direction of vibration, and should equal the screen size of requirement in the physical dimension of other direction.
The erection sequence of the vibration separation screen device of the present embodiment is:
1. each sieve unit 6 inserted upright screen frame 4, load onto and press sieve thick stick 9 to form sieve railway carriage or compartment;
2. respectively each screened stock is propped up groove 3 with plastic flow groove 8 to connect with sieve railway carriage or compartment, form and increase sieve railway carriage or compartment;
3. pulp tank 2 is in place, levelling, puts into vibration isolator spring;
4. will increase sieve railway carriage or compartment is located in pulp tank 2;
5. respectively account for a people in pulp tank 2 both sides, prop up groove 3 with steel pipe (frock) through screened stock and also suitably lift, insert flange sleeve from both sides respectively, then extract steel pipe out, stifle or elbow are installed.So install each thimble assembly 15;
6. successively vibrator unit, Hooks coupling universal coupling, motor, flexible coupling and guard shield are installed;
7. feeder trough 1, the dry groove 11 of screened stock, pulp valve 12 etc. bottom pulp tank are installed.Thick stock tank 13 is made in erecting bed by user, installation.
In sum, the invention provides vibration separation screen device, its compass screen surface can in limited space intensive layout, when pressing fine grading to black water or other ore pulp, compared with sieving with existing equipment plane vibration, the weight of equipment of its unit cover surface, equipment volume, floor space and installed power all significantly reduce, thus significantly reducing for construction cost during large-scale production and use cost.
Compared with existing equipment hydrocyclone, vibration separation screen device of the present invention does not disturb by mineral density in strict accordance with mineral granularity classification, and thus effectiveness of classification significantly improves; Pulp gravity flow feeding and need not forced feed, the energy consumption thus processing unit volume ore pulp significantly reduces, and its use cost is corresponding reduction also.When pressing fine grading to black water or other ore pulp, because technology, economic two aspects all exist advantage, now widely used hydrocyclone can be replaced.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (1)
1. a vibration separation screen device, it is characterized in that, comprise feeder trough, pulp tank, screened stock props up groove, upright screen frame and vibration source, described feeder trough is used in pulp gravity flow to upright screen frame, described vibration source is connected to upright screen frame and vibrates in order to drive upright screen frame, described upright screen frame to be supported in pulp tank and to comprise multiple vertical guide groove in order to hold sieve unit, described sieve unit comprises a vertical rectangle frame and is installed on the compass screen surface on two facades of rectangle frame, form rough slurry runner outside described compass screen surface and connect the bottom grout outlet of described pulp tank, form screened stock runner and connect described screened stock by a plastic flow groove between described two compass screen surfaces and prop up groove, described screened stock props up thin ore pulp is delivered to pulp tank by groove outside through the wall of pulp tank,
Be provided with vibration isolator between described upright screen frame and pulp tank, the upper erection support of this vibration isolator is positioned at the upper outside of upright screen frame, and lower erection support is positioned at the upper inner of pulp tank;
The top of described upright screen frame is connected with pressure sieve thick stick, in order to be pressed in upright screen frame by described sieve unit; The bottom of described upright screen frame is fixed with horizontal joist, in order to sieve unit described in support;
The bottom surface of described vertical rectangle frame is a sieve plate, passes from the sieve aperture of this sieve plate in order to make the thin ore pulp through compass screen surface;
Described feeder trough is positioned at the top of pulp tank, and comprises dry groove and to be positioned at below dry groove and connected groove, and the bottom land of described dry groove and the groove wall of each groove all have appropriate hole.
2. vibration separation screen device according to claim 1, is characterized in that, the upper surface of described horizontal joist is being formed with seam perpendicular to compass screen surface direction, for preventing sieve unit in this direction slippage.
3. vibration separation screen device according to claim 1, is characterized in that, described horizontal joist forms some interfaces, and described plastic flow groove connects screened stock runner by this interface and screened stock props up groove.
4. vibration separation screen device according to claim 1, is characterized in that, described screened stock props up groove and comprises and middle open trough and open at both ends pipeline section, and described middle open trough is connected with described plastic flow groove.
5. vibration separation screen device according to claim 4, it is characterized in that, the wallboard inwall of described pulp tank is provided with the some flange-interfaces in order to mounting sleeve assembly, and this thimble assembly entangles in order to the two ends of each screened stock being propped up groove and the thin ore pulp propped up by screened stock in groove sends pulp tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043511.7A CN103071618B (en) | 2013-02-04 | 2013-02-04 | Vibration classifying screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043511.7A CN103071618B (en) | 2013-02-04 | 2013-02-04 | Vibration classifying screen device |
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| Publication Number | Publication Date |
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| CN103071618A CN103071618A (en) | 2013-05-01 |
| CN103071618B true CN103071618B (en) | 2015-04-22 |
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| CN201310043511.7A Expired - Fee Related CN103071618B (en) | 2013-02-04 | 2013-02-04 | Vibration classifying screen device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104772215B (en) * | 2015-04-21 | 2017-07-21 | 中国地质科学院郑州矿产综合利用研究所 | Iron mineral liquid magnetization sorting vibrating screen system, sorting device and sorting method |
| CN104874540B (en) * | 2015-05-05 | 2017-01-25 | 昆明理工大学 | Push-pull hanging and folding screen |
| CN105728322B (en) * | 2016-04-05 | 2017-07-28 | 昆明理工大学 | A kind of stay-supported hangs folding sieve |
| CN112845042A (en) * | 2021-01-05 | 2021-05-28 | 广州市顺兴石场有限公司 | Automatic dustproof vibrating screen for quarry |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237001A (en) * | 1979-04-30 | 1980-12-02 | Howard S. Berry | Ore classifier |
| CN85107512B (en) * | 1985-10-14 | 1987-10-14 | 徐州矿务局新河煤矿 | Verticle reinforced screening machine |
| CN1127165A (en) * | 1995-01-16 | 1996-07-24 | 吴解生 | High-frequency vibration pressure sieve |
| FI117867B (en) * | 2004-12-10 | 2007-03-30 | Metso Paper Inc | Sorter and method for sorting the pulp |
| CN101920133A (en) * | 2010-07-13 | 2010-12-22 | 陆信 | Self-synchronizing vertical screening dewatering screen |
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Address after: 221008 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Applicant after: China University of Mining & Technology Address before: 221008 China University of Mining and Technology Research Institute, 1 University Road, Jiangsu, Nanjing Applicant before: China University of Mining & Technology |
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