CN111085436B - Air flow sealing powder concentrator with pre-grading function - Google Patents
Air flow sealing powder concentrator with pre-grading function Download PDFInfo
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- CN111085436B CN111085436B CN201911421578.3A CN201911421578A CN111085436B CN 111085436 B CN111085436 B CN 111085436B CN 201911421578 A CN201911421578 A CN 201911421578A CN 111085436 B CN111085436 B CN 111085436B
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- fine powder
- powder outlet
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- chamber
- vortex generating
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- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
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- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
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- 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
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Abstract
The invention discloses an airflow sealing powder concentrator with pre-grading, which comprises a powder selecting chamber with a coarse powder outlet, a cage-shaped rotor vertically arranged in the powder selecting chamber and a driving device for driving the cage-shaped rotor to rotate, wherein an air material pipe for air inlet and feeding is fixedly arranged on the powder selecting chamber, the air material pipe extends from the outside to the inside of the powder selecting chamber, and a spiral guide vane for pre-grading is fixedly arranged in a pipe body at one end of the air material pipe positioned in the powder selecting chamber; a fine powder outlet and a vortex generating chamber which are communicated with the powder selecting chamber are arranged above the cage-shaped rotor, the vortex generating chamber is sleeved between the outer side of the fine powder outlet and the outer wall of the fine powder outlet to form a cavity, a secondary air inlet is arranged on the vortex generating chamber, and one end of the fine powder outlet, which is communicated with the powder selecting chamber, extends to the end face of the cage-shaped rotor, which is close to the fine powder outlet. The invention has the advantages of uniform and stable airflow in the powder selecting chamber and high grading precision, shares the sorting concentration of the cage rotor in the pre-sorting process, improves the sorting efficiency and is suitable for all powder selectors.
Description
Technical Field
The invention belongs to the field of powder material classification, relates to powder material classification equipment, and particularly relates to an airflow sealing powder concentrator with pre-classification.
Background
The vortex powder separator is provided with a pre-classified airflow sealing powder separator which is widely applied to dry classification of powder materials, and the core component of the vortex powder separator is a cage-shaped rotor. In the classification process, the sealing structure of the gap between the cage rotor and the powder outlet has an important influence on the particle classification precision of the vortex powder concentrator, and poor sealing effect can cause part of airflow to carry ungraded particles to directly enter the fine powder outlet from the gap, so that coarse particles enter fine powder products, the classification precision cannot reach an ideal state, and the classification precision is reduced.
In the prior art, the vortex powder concentrator mainly adopts mechanical sealing and airflow sealing. The mechanical seal ensures the sealing effect by controlling the sealing clearance, namely a cyclone sheet is arranged between the fine powder outlet and the cage type rotor, and the sealing mode has the defects that: after the cage type rotor runs for a long time, abrasion can be generated, the gap is enlarged, and the sealing effect is poor. The air flow sealing mainly fills the gap between the fine powder outlet and the cage-type rotor by introducing external air to block the passage of the material directly entering the fine powder outlet, but because the position and the number of the air inlets are not properly arranged, the sealed air flow at the whole gap is unevenly distributed, and part of coarse particles still directly enter the fine powder outlet, so that the grading precision is reduced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the airflow sealing powder concentrator with pre-grading so as to achieve the purposes of good sealing performance and high grading precision in the grading process.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an airflow sealing powder concentrator with pre-classification comprises a powder selection chamber with a coarse powder outlet, a cage-shaped rotor vertically arranged in the powder selection chamber, and a driving device for driving the cage-shaped rotor to rotate, wherein an air material pipe for air inlet and feeding is fixedly arranged on the powder selection chamber, the air material pipe extends from the outside to the inside of the powder selection chamber, and a spiral guide vane for pre-classification is fixedly arranged in a pipe body of the air material pipe, which is positioned at one end inside the powder selection chamber; a fine powder outlet and a vortex generating chamber which are communicated with the powder selecting chamber are arranged above the cage-shaped rotor, the vortex generating chamber is sleeved between the outer side of the fine powder outlet and the outer wall of the fine powder outlet to form a cavity, a secondary air inlet is arranged on the vortex generating chamber, and one end of the fine powder outlet, which is communicated with the powder selecting chamber, extends to the end face of the cage-shaped rotor, which is close to the fine powder outlet; the driving device is fixedly arranged on the fine powder outlet.
As a limitation of the present invention: the driving device comprises a rotating shaft which is rotationally connected to the fine powder outlet and a motor connected with one end of the rotating shaft; the cage-shaped rotor is fixedly arranged at the other end of the rotating shaft.
As a further limitation of the invention: the secondary air inlets are two and are arranged along the tangential direction of the vortex generating chamber.
As another limitation of the present invention: the powder selecting chamber comprises a cylinder body and a cone fixedly arranged at one end of the cylinder body; the coarse powder outlet is arranged at one end of a cone body which is not connected with the cylinder body, the fine powder outlet and the vortex generating chamber are fixedly arranged on the cylinder body, and the air pipe is fixedly arranged on the cone body.
As still another limitation of the present invention: and two tertiary air inlets are arranged on the cone and are arranged along the tangential direction of the cone.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the vortex generation chamber is sleeved outside the fine powder outlet, the vortex generation chamber is provided with the secondary air inlet arranged along the tangential direction, in the classification process, air flow enters from the secondary air inlet, stable rotating air flow is formed in the vortex generation chamber, and then the air flow moves downwards to the gap between the cage-shaped rotor and the fine powder outlet to form a vortex barrier, so that materials are prevented from being directly discharged from the gap between the fine powder outlet and the cage-shaped rotor without being classified, and the classification precision is improved; in addition, a spiral guide vane is arranged in a pipe body of the air material pipe, which is positioned at one end inside the powder selecting chamber, after the materials enter from the air material pipe, airflow carrying the materials rotates at the spiral guide vane in the air material pipe in an accelerating way, part of large-particle materials are thrown to the outer side of the air material pipe, collide with the inner wall of the powder selecting chamber and then are discharged from a coarse powder outlet, and the rest particles rise along with the airflow and enter the powder selecting chamber for continuous selection, so that the concentration of coarse particles at the position of a grading wheel is reduced, and the grading precision is further improved;
(2) the cone is provided with the tertiary air inlet and arranged along the tangential direction of the cone, so that fine particles and fine particles which fall into the cone and are adhered to coarse particles are agglomerated into 'pseudo large particles' for continuous fluidized separation, and materials are subjected to air flow separation before falling out, so that the classification precision is improved.
In conclusion, the airflow sealing powder concentrator has the advantages of ingenious structure, uniform and stable airflow in the powder selecting chamber, high grading precision, capability of sharing the sorting concentration of the cage-shaped rotor in the pre-sorting process, improvement of the sorting efficiency and suitability for the airflow sealing powder concentrator with all vortexes provided with the pre-grading process.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic sectional view of the structure of FIG. 1B-B.
In the figure: 1-powder selecting chamber, 1.1-cylinder, 1.2-cone, 2-cage rotor, 3-driving device, 3.1-motor, 3.2-bearing, 3.3-bearing seat, 3.4-rotating shaft, 4-vortex generating chamber, 5-fine powder outlet, 6-secondary air inlet, 7-air pipe, 8-spiral guide vane, 9-connecting rod, 10-bracket, 11-fixed shaft, 12-coarse powder outlet and 13-tertiary air inlet.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the air-tight powder concentrator with pre-staging described herein is a preferred embodiment, and is for the purpose of illustration and explanation only, and is not to be construed as limiting the present invention.
Embodiment is provided with the sealed selection powder machine of air current of preliminary grading
In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, an air-tight powder concentrator with pre-classification includes a powder selecting chamber 1 having a coarse powder outlet 12, where the powder selecting chamber 1 includes a cylinder 1.1 and a cone 1.2 fixedly disposed at one end of the cylinder 1.1, and as shown in fig. 1, an upper end surface of the cylinder 1.1 is closed, and a fine powder outlet 5 and a vortex generating chamber 4, which are communicated with the powder selecting chamber 1, are fixedly disposed on the upper end surface. As can be understood by those skilled in the art, the vortex generating chamber 4 is a cylindrical shell fixedly arranged on the powder selecting chamber 1, and one end of the vortex generating chamber is communicated with the powder selecting chamber 1; the fine powder outlet 5 is a shell fixedly arranged on the vortex generation chamber 4, one end of the fine powder outlet extends to the lower portion (the lower portion in the figure 1) of the vortex generation chamber 4, the other end of the fine powder outlet extends to the upper portion (the upper portion in the figure 1) of the vortex generation chamber 4, the end extending upwards is in round corner transition, the fine powder outlet is bent by 90 degrees rightwards, an opening is formed in the right end (the right end in the figure 1) of the fine powder outlet and used for discharging fine powder materials, the vortex generation chamber 4 is sleeved outside the fine powder outlet 5 and forms a cavity with the outer wall of the fine powder outlet 5, two secondary air inlets 6 are formed in the vortex generation chamber 4, the vortex generation chamber 4 is provided with two secondary air inlets 6, the two secondary air inlets are arranged along the tangential direction of the vortex generation chamber 4 and are symmetrical in rotation by 180 degrees, and air flow enters the vortex generation chamber 4 and then rotates around the cavity between the vortex generation chamber 4 and the fine powder outlet 5, so that rotary air flow can be formed quickly and uniformly.
As shown in fig. 1, one end of the cone 1.2 is fixedly arranged at one end of the cylinder 1.1, and the other end is provided with a coarse powder outlet 12. The cone 1.2 is fixedly provided with a tubular air material pipe 7 for air inlet and feeding, and the air material pipe 7 has a certain length and extends from the outside of the cone 1.2 to the inside of the powder selecting chamber 1. The air material pipe 7 is characterized in that a spiral guide vane 8 used for pre-grading is fixedly arranged in a pipe body at one end inside the powder selecting chamber 1, the spiral guide vane 8 is in a spiral plate shape, a fixed shaft 11 used for supporting is fixedly arranged at the center of the spiral guide vane 8, a connecting rod 9 is fixedly arranged on the fixed shaft 11, the connecting rod 9 is fixedly arranged on the inner wall of the air material pipe 7, and the spiral guide vane 8 is fixedly arranged inside the air material pipe 7. Two tertiary air inlets 13 are fixedly arranged on the cone 1.2, are positioned above the air material pipe 7 and are arranged along the tangential direction of the cone 1.2, as shown in fig. 3, the tertiary air inlets 13 are symmetrical in rotation by 180 degrees, and are beneficial to spiral rising of air flow entering the powder selecting chamber 1.
The cage-shaped rotor 2 is vertically arranged below the fine powder outlet 5 (below the fine powder outlet shown in figure 1), one end of the fine powder outlet communicated with the powder selecting chamber 1 extends to the upper end face of the cage-shaped rotor 2, namely the end face of the cage-shaped rotor 2 close to the fine powder outlet 5, the caliber of the fine powder outlet 5 is larger than the diameter of the cage-shaped rotor 2, the outer wall of the cage-shaped rotor 2 is surrounded, a labyrinth is formed between the fine powder outlet 5 and the cage-shaped rotor 2, and a gap is formed between the fine powder outlet 5 and the cage-shaped rotor 2 and used for rotating the cage-shaped rotor 2. The cavity between the vortex generation chamber 4 and the fine powder outlet 5 forms rotary airflow, a gap between the fine powder outlet 5 and the cage-shaped rotor 2 is sealed through airflow, materials are prevented from being directly discharged from the gap, and the air material pipe 7 is located below the cage-shaped rotor 2, namely the center of the powder selection chamber 1, so that the materials can enter a classification area quickly. The fine powder outlet 5 is provided with a support 10, and the support 10 is fixedly provided with a driving device 3 for driving the cage-shaped rotor 2 to rotate. The driving device 3 comprises a rotating shaft 3.4 connected to the support 10 in a rotating mode and a motor 3.1 connected with one end of the rotating shaft 3.4, a bearing seat 3.3 is fixedly arranged on the support 10, the rotating shaft 3.4 penetrates through the bearing seat 3.3 to be connected to the support 10 through a bearing 3.2 in a rotating mode, a cage-shaped rotor 2 is fixedly arranged at one end of the rotating shaft 3.4, and the other end of the rotating shaft is connected with an output shaft of the motor 3.1.
According to the working principle of the embodiment, air flow carries materials to enter the air material pipe 7, the materials spirally rise through the spiral guide vane 8, particles with large particle sizes are thrown out due to the fact that centrifugal force is larger than air flow resistance, and fall along the inner wall after colliding with the inner wall of the powder selecting chamber 1, and the particles are discharged from the coarse powder outlet 12. The particles with smaller particle size rise along with the airflow generated by the cage rotor 2 because the airflow drag force is larger than the centrifugal force, are sorted around the cage rotor 2, and pass through the blade gaps of the cage rotor 2 along with the airflow to enter the fine powder outlet 5. The airflow enters the vortex generating chamber 4 through the tangential secondary air inlet 6 to generate stable and strong vortex which is filled in the gap between the cage rotor 2 and the fine powder outlet 5. The air carries out continuous fluidized separation on the falling coarse particles in the powder selecting chamber 1 through the tangential tertiary air inlet 13, and the fine particles adhered to the coarse particles are agglomerated into 'pseudo large particles' to be carried into the powder selecting chamber 1 again for being separated through the cage type rotor 2.
In addition, the terms "upper", "lower", "left", "right" and the like as used herein are used in the orientation or positional relationship of fig. 1 based on the drawings of the present specification, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that a device or an element must have a specific orientation, be constructed in a specific orientation and operation, because it is not to be construed as limiting the contents of the present invention.
Claims (3)
1. The utility model provides an air current seals selection powder machine with presorting, including the selection powder room that is equipped with the middlings export, vertically locate the indoor cage type rotor of selection powder, be used for driving cage type rotor pivoted drive arrangement, the selection powder room includes the barrel and sets firmly the cone in barrel one end, its characterized in that: an air material pipe for air inlet and feeding is fixedly arranged on the powder selecting chamber, the air material pipe extends from the outside to the inside of the powder selecting chamber, and a spiral guide vane for pre-grading is fixedly arranged in a pipe body at one end of the air material pipe, which is positioned in the powder selecting chamber;
the spiral guide vane is in a spiral plate shape, a fixed shaft for supporting is fixedly arranged at the center of the spiral guide vane, a connecting rod is fixedly arranged on the fixed shaft, and the connecting rod is fixedly arranged on the inner wall of the air material pipe;
a fine powder outlet and a vortex generating chamber which are communicated with the powder selecting chamber are arranged above the cage-shaped rotor, the vortex generating chamber is a cylindrical shell, one end of the vortex generating chamber is communicated with the powder selecting chamber, and the vortex generating chamber is sleeved between the outer side of the fine powder outlet and the outer wall of the fine powder outlet to form a cavity;
the fine powder outlet is a shell fixedly arranged on the vortex generating chamber, one end of the fine powder outlet extends to the lower part of the vortex generating chamber, the other end of the fine powder outlet extends to the upper part of the vortex generating chamber, the caliber of the fine powder outlet is larger than the diameter of the cage-shaped rotor, the fine powder outlet surrounds the outer wall of the cage-shaped rotor, a labyrinth is formed between the fine powder outlet and the cage-shaped rotor, and a gap is formed between the fine powder outlet and the cage-shaped rotor;
the vortex generating chamber is provided with a secondary air inlet, and one end of the fine powder outlet communicated with the powder selecting chamber extends to the end face of the cage-shaped rotor close to the fine powder outlet; the driving device is fixedly arranged on the fine powder outlet;
the two secondary air inlets are arranged along the tangential direction of the vortex generating chamber, are symmetrical after rotating for 180 degrees, and rotate around a cavity between the vortex generating chamber and the fine powder outlet after air flow enters the vortex generating chamber;
and two tertiary air inlets are arranged on the cone and are arranged along the tangential direction of the cone.
2. The airflow sealing powder concentrator with pre-grading according to claim 1, wherein: the driving device comprises a rotating shaft which is rotationally connected to the fine powder outlet and a motor connected with one end of the rotating shaft; the cage-shaped rotor is fixedly arranged at the other end of the rotating shaft.
3. The airflow sealing powder concentrator with pre-grading according to claim 2, wherein: the coarse powder outlet is arranged at one end of a cone body which is not connected with the cylinder body, the fine powder outlet and the vortex generating chamber are fixedly arranged on the cylinder body, and the air pipe is fixedly arranged on the cone body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911421578.3A CN111085436B (en) | 2019-12-31 | 2019-12-31 | Air flow sealing powder concentrator with pre-grading function |
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| CN201911421578.3A CN111085436B (en) | 2019-12-31 | 2019-12-31 | Air flow sealing powder concentrator with pre-grading function |
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| CN111085436A CN111085436A (en) | 2020-05-01 |
| CN111085436B true CN111085436B (en) | 2021-11-19 |
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| CN112246631B (en) * | 2020-09-05 | 2022-02-08 | 江苏吉能达环境能源科技有限公司 | Safe and environment-friendly sealing device for powder concentrator |
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| CN116493258B (en) * | 2023-06-28 | 2023-09-05 | 绵阳九方环保节能科技有限公司 | Horizontal vortex powder separator capable of preventing dust accumulation |
| CN117225704B (en) * | 2023-11-16 | 2024-03-08 | 潍坊凯华碳化硅微粉有限公司 | Superfine silicon carbide micro powder classifier based on air current classification |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155957Y (en) * | 1993-04-07 | 1994-02-16 | 浙江大学 | Air power sealing device for powder sorting machine |
| JPH0810706A (en) * | 1994-06-29 | 1996-01-16 | Nippon Cement Co Ltd | Pneumatic sorter |
| CN2382483Y (en) * | 1999-07-12 | 2000-06-14 | 西安建筑科技大学 | High efficiency energy saving eddy air grading machine |
| CN201516416U (en) * | 2009-10-23 | 2010-06-30 | 山东青州微粉有限公司 | Inverted airflow seal device used for airflow classer |
| CN202356312U (en) * | 2011-11-07 | 2012-08-01 | 溧阳中材重型机器有限公司 | Labyrinth seal structure of powder concentrator |
| CN202366881U (en) * | 2011-12-26 | 2012-08-08 | 于波涛 | Air volume adjustable powder concentrator |
| CN204074519U (en) * | 2014-09-12 | 2015-01-07 | 彭维明 | Pulverized coal preparation system New Type of Separator |
| CN204148135U (en) * | 2014-09-25 | 2015-02-11 | 彭维明 | Pre-separation mill separator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2242125Y (en) * | 1995-11-15 | 1996-12-11 | 四川绵阳黎明实业有限责任公司 | ultrasonic super fine air-jet disintegrating device for pre-selection powder |
| CN104226591B (en) * | 2013-11-29 | 2017-05-10 | 上海益非亚粉体技术设备有限公司 | Dynamic grader |
-
2019
- 2019-12-31 CN CN201911421578.3A patent/CN111085436B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155957Y (en) * | 1993-04-07 | 1994-02-16 | 浙江大学 | Air power sealing device for powder sorting machine |
| JPH0810706A (en) * | 1994-06-29 | 1996-01-16 | Nippon Cement Co Ltd | Pneumatic sorter |
| CN2382483Y (en) * | 1999-07-12 | 2000-06-14 | 西安建筑科技大学 | High efficiency energy saving eddy air grading machine |
| CN201516416U (en) * | 2009-10-23 | 2010-06-30 | 山东青州微粉有限公司 | Inverted airflow seal device used for airflow classer |
| CN202356312U (en) * | 2011-11-07 | 2012-08-01 | 溧阳中材重型机器有限公司 | Labyrinth seal structure of powder concentrator |
| CN202366881U (en) * | 2011-12-26 | 2012-08-08 | 于波涛 | Air volume adjustable powder concentrator |
| CN204074519U (en) * | 2014-09-12 | 2015-01-07 | 彭维明 | Pulverized coal preparation system New Type of Separator |
| CN204148135U (en) * | 2014-09-25 | 2015-02-11 | 彭维明 | Pre-separation mill separator |
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