CN102274826B - Superfine turbine classifier - Google Patents
Superfine turbine classifier Download PDFInfo
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- CN102274826B CN102274826B CN 201110116372 CN201110116372A CN102274826B CN 102274826 B CN102274826 B CN 102274826B CN 201110116372 CN201110116372 CN 201110116372 CN 201110116372 A CN201110116372 A CN 201110116372A CN 102274826 B CN102274826 B CN 102274826B
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Abstract
The invention provides a superfine turbine classifier, which is characterized in that, the housing of a powder outlet chamber is connected on a classifying chamber, the powder outlet chamber is connected with a dust collector. A main shaft extends out from the upper part of the powder outlet chamber to be connected with a power mechanism, and is fixed in the powder outlet chamber via a bearing, a bearing seat, and flanges. The main shaft extending into the classifying chamber is provided with a shaft sleeve connecting an upper plate of a classifying turbine assembly, the upper and lower ends of the classifying blades are respectively fixedly connected with an upper plate and a lower plate, each classifying blade is perpendicular to the horizontal and at an oblique angle with a radial plane, and the external shape of the classifying turbine assembly is a conical table. The lower end of the classifying chamber is connected with a powder mill. An inner sealing ring and an outer sealing ring of an annular sealing groove plate at the lower end of the housing of the powder outlet chamber are matched with an inner sealing blade and an outer sealing blade of the upper plate to form a maze sealing. The lower part of the lower plate of the classifying turbine assembly is connected with a flow guiding cover in the shape of an inverted conical surface. The main shaft drives the classifying turbine assembly to rotate, and the wind power of the classifying blades makes the powder spiral upward, fine powder ascends to the powder outlet chamber, and coarse powder descends to return to the powder mill. The superfine turbine classifier is advantaged by high precision of classifying, no short-connection powder, small loss of system wind power, and no influence upon efficiency of the powder mill.
Description
(1) technical field
Patent of the present invention relates to a kind of abrasive dust classifying equipoment of nonmetallic ore, particularly can directly connect the superfine turbine classifier that use does not affect flour extraction with flour mill.
(2) background technology
Now be used for the abrasive dust classifying equipoment of nonmetallic ore the most frequently used be the built-in classifying machine.The built-in classifying machine is grader directly to be placed grind the main frame top.When mineral were roused the wind that comes and deliver to the grader of main frame top and sieve by air blast after main frame grinds, thick person is returned to be fallen into the main frame chamber and continues to grind, and thin person is satisfactory to be imported cyclone collector through piping and collect and is finished product.The built-in classifying machine has plain edition and superfine type.It mainly is comprised of the plain edition grader oil sump reductor, main shaft, blade, lower casing, Sealing shield ring, upper casing etc.Because being subjected to the impact of physical dimension and machining accuracy, the gap of blade and Sealing shield ring very large (generally in the 5-8mm scope) is easy to form the short circuit powder, affected effectiveness of classification, and classification efficiency descends.The airflow direction that produces during its two graded blades rotation is opposite with the system airflow throughput direction, has hindered the strength conveying, has directly affected the output of milling equipment.
The higher turbine classifier of efficient now having occurred, is the patent of invention " turbine classifier that is used for powder processing " of 200610023545.x such as application number, and application number is 200610119196.1 patent of invention " turbine classifier of pendulum type ring roll pulverizer ".But the turbine of existing turbine classifier is for mostly being greatly column type, the graded blade of turbine and sealing blade are integrated, and the width of sealing blade and graded blade is identical, can't form labyrinth sealing, still cause easily the short circuit of coarse granule powder to leak, be difficult to be applicable to the classification of superfine powder.
Although a plurality of turbine set combinations can improve the classification fineness, complex structure, cost is high, is difficult to extensive use.
(3) summary of the invention
The objective of the invention is to design a kind of superfine turbine classifier, it is truncated cone that there are sealing blade, stage turbine profile in the stage turbine top, and effectiveness of classification is high, efficient is high.
The superfine turbine classifier of design of the present invention comprises grading room and stage turbine, grading room is a housing, the stage turbine assembly is arranged in the grading room, a plurality of graded blades are arranged on the stage turbine assembly, above grading room, be the powder delivery chamber, the powder delivery chamber also is a housing, and a side has meal outlet, and meal outlet and dust collection join.Described dust collection is cyclone collector or pulse collector.Main shaft is arranged in powder delivery chamber and grading room central authorities, and main shaft stretches out with actuating unit from top, powder delivery chamber and is connected.Main shaft is installed on the indoor bearing block of powder delivery through bearing.The upper flanges of powder delivery chamber, central flange and lower end flanges respectively at the upper, middle and lower fixed bearing block of bearing block in the housing of powder delivery chamber.
The grading room lower end is connected with the grinding chamber of flour mill; Stretch on the main shaft of grading room axle sleeve is installed, the stage turbine assembly comprises upper plate, lower plate and graded blade, upper plate and lower plate are the ring plate centered by spindle centerline, 3～6 radially connector connect upper plate and axle sleeve, the main shaft warp beam sleeve drives upper and lower plate and rotates.Graded blade upper end is affixed with upper plate, the lower end is affixed with lower plate, the blade plane of each graded blade perpendicular to horizontal plane, and sagittal plane institute bevel be 18 °～22 °, each graded blade radical length is 50mm～70mm.The profile of stage turbine assembly graded blade part is the frustum of a cone, and its tapering is 16 °～20 °, highly is 600mm～650mm.Graded blade equidistantly distributes, the gap is 23mm～30mm mutually.
Housing lower end, powder delivery chamber is connected with the ring packing frid centered by spindle centerline.The formation labyrinth sealing that matches with upper plate of sealing frid.The edge is tightly connected on sealing frid outer rim and the grading room housing.
The formation labyrinth sealing that matches of the inside and outside sealing blade of the sealing inside and outside sealing ring of frid and upper plate.The upper plate external diameter is greater than the lower plate external diameter, affixed interior sealing blade and external seal blade on the upper plate, interior sealing blades arrangement consists of the interior ring centered by spindle centerline, the external seal blades arrangement consists of the outer shroud centered by spindle centerline, the blade plane of interior sealing blade and external seal blade is perpendicular to upper plate, interior sealing blade and external seal blade height equate to be 20mm～40mm, with sagittal plane institute bevel be 23 °～27 °, interior sealing blade and external seal blade radial total length are 115mm～140mm, and the distance between the internal diameter of the interior ring that the external diameter of the interior ring that interior sealing blade consists of and external seal blade consist of is 6mm～10mm.
Be connected with inside and outside two sealing rings centered by spindle centerline under the sealing frid, be the labyrinth seal groove between two rings.The outer seal ring internal diameter is greater than upper plate external diameter 0.8mm～1.5mm, and the outer seal ring ring is tall and big in height and the upper plate thickness sum 0.4mm～1.0mm of sealing blade; The inner seal ring internal diameter is greater than the external diameter 0.8mm～1.5mm of the interior ring of interior sealing blade formation, and the inner seal ring external diameter is less than the internal diameter 0.4mm～1.0mm of the outer shroud of external seal blade formation, and inner seal ring ring height is less than or equal to the height of inside and outside sealing blade.The outer seal ring gear of sealing frid is in the upper plate outer rim outside, gap with upper plate outer rim maintenance 0.8mm～1.5mm, inner seal ring is inserted between the outer shroud that interior ring that interior sealing blade consists of and external seal blade consist of, keep respectively the gap of 0.3mm～0.7mm with the two, the top of sealing frid and inside and outside sealing blade keeps the gap of 0.3mm～0.7mm.
The quantity of interior sealing blade quantity and external seal blade equates that each internally seals blade and the external seal blade is on the plane.
The key and the keyway that cooperatively interact are arranged on main shaft and the axle sleeve, and axle sleeve is installed on the main shaft, and the adjusting pad is enclosed within and is positioned at the axle sleeve top on the main shaft, and there is screw thread the main shaft bottom, regulates pad and adjusts the axial location of axle sleeve on main shaft, the locking nut fastening shaft sleeve of main shaft bottom.The adjustment of axle sleeve axial location can be regulated the upper plate that is fixed on the axle sleeve and the distance that is fixed in the sealing frid on the powder delivery chamber, regulates labyrinth sealed end play.
Along soft interface is arranged, be convenient to be connected with the grinding chamber of flour mill under the grading room.
The grading room housing is fixed with supporting mass outward, is convenient to the frame that is mounted on of this grader.
Connect kuppe under the lower plate of stage turbine assembly, kuppe is the rounding conical surface, and along being connected with the lower plate outer, its lower end is cover plate on it, and the cone height is 1/4～1/3 of stage turbine assembly height.The wind that kuppe is come by air blast drum from grinding chamber and the powder graded blade that evenly leads.
During superfine turbine classifier work of the present invention, actuating unit drives the main shaft rotation, and the stage turbine that is assemblied on the main shaft sleeve rotates synchronously.The wind direction that the graded blade High Rotation Speed produces of stage turbine is the tangential direction of rotation, and because of the radius at top greater than bottom radius, the linear velocity of top graded blade is larger, wind-force is stronger.Powder after flour mill grinds is sent into grading room by the wind that air blast blasts, the effect of the centrifugal wind-force that the graded blade that is rotated again produces, powder particle is along with the rotating disc of stage turbine assembly spins up, thinner powder particle is when the needed time is less than inswept time of unit number of revolutions blade when the graded blade gap, powder particle smoothly by in the gap of graded blade by rising to the powder delivery chamber, meal outlet by a side enters dust collection, is collected into to be finished product.Thicker powder particle during by the graded blade gap the needed time greater than the inswept time of unit number of revolutions blade, hit by blade, speed transfers zero to, the grinding chamber that falls to returning flour mill continues to grind, and turbine classifier of the present invention is exactly to play a part like this screening.
The advantage of superfine turbine classifier of the present invention is: 1, effectiveness of classification is high, and is gradable up to 600-2500 purpose product.2, the inside and outside sealing blade on the stage turbine assembly forms twice labyrinth sealing with the sealing frid, inside and outside sealing blade forms air-flow outward when the maze trough high speed is rotated, the overall width of inside and outside sealing blade is greater than the width of graded blade, the labyrinth sealing section length is multiplied, effectively stop the powder in the grading room directly not enter the powder delivery chamber by the stage turbine assembly, without the short circuit powder, improved widely effectiveness of classification, effectively controlled the quality of finished product powder; 3, this grader can directly be connected to the outlet of flour mill grinding chamber, the wind-force direction of flour mill air blast is axial, and this grader graded blade rotation institute wind direction that produces is the tangential direction of rotating, the two is directly head-on collision loss not, the energy loss that the wind-force of whole system is carried is little, thereby connects with the efficient that can not affect flour mill behind this grader; For example revolve flour mill with ring and link to each other, can directly obtain 600-2500 purpose product; 4, being easy to use is easy to safeguard.
(4) description of drawings
Fig. 1 is this superfine turbine classifier example structure schematic diagram;
Fig. 2 is the enlarged diagram of hermetically-sealed construction M part among Fig. 1;
Fig. 3 is the structural representation of stage turbine assembly among Fig. 1;
Fig. 4 is that the A of Fig. 3 is to view.
Number in the figure is: 1, main shaft, 11, belt pulley, 12, bearing block, 13, locking nut, 14, axle sleeve, 15, regulate pad, 16, connector, 2, the powder delivery chamber, 21, meal outlet, 22, central flange, 23, upper flanges, 24, lower end flanges, 25, the sealing frid; 251, outer seal ring, 252, inner seal ring, 3, the stage turbine assembly, 31, the external seal blade, 32, interior sealing blade, 33, graded blade, 34, upper plate, 35, lower plate, 4, grading room, 41, the grading room upper flange, 42, supporting mass, 43, connecting hose, 5, kuppe, 51, cover plate.
(5) specific embodiment
The overall structure of this superfine turbine classifier embodiment as shown in Figure 1, comprise powder delivery chamber 2, grading room 4 and stage turbine assembly 3, grading room 4 is a housing, stage turbine assembly 3 is arranged in the grading room 4, above grading room 4, be powder delivery chamber 2, powder delivery chamber 2 also is a housing, and a side has meal outlet 21, and meal outlet 21 joins with cyclone collector.Main shaft 1 is arranged in powder delivery chamber 2 and grading room 4 central authorities, and main shaft 1 stretches out from 2 tops, powder delivery chamber, and belt pulley 11 is installed on it, to be connected with actuating unit.The bearing block 12 of main shaft 1 in bearing is installed on powder delivery chamber 2.The upper flanges 23 of powder delivery chamber 2, central flange 22 and lower end flanges 24 respectively at the upper, middle and lower fixed bearing block 12 of bearing block 12 in 2 housings of powder delivery chamber.
There is soft interface 43 outer, grading room 4 lower end, is connected with the grinding chamber of flour mill; Stretch on the main shaft 1 of grading room 4 and the axle sleeve 14 key and the keyway that cooperatively interacts arranged, axle sleeve 14 is installed on the main shaft 1, main shaft 1 has the protrusion step above axle sleeve 14, regulate pad 15 be enclosed within on the main shaft 1, between main shaft 1 step and axle sleeve 14, to adjust the axial location of axle sleeve 14 on main shaft 1, screw thread is arranged at main shaft 1 bottom, locking nut 13 fastening shaft sleeves 14 of main shaft bottom.
As shown in Figure 3 and Figure 4, stage turbine assembly 3 comprises upper plate 34, lower plate 35 and graded blade 33, upper plate 34 and lower plate 35 are the ring plate centered by main shaft 1 center line, 6 radially connector 16 connect upper plates 34 and axle sleeves 14, main shaft 1 warp beam sleeve 14 drives upper plates 34, lower plate 35 is rotated.Graded blade 33 upper ends and upper plate are 34 affixed, lower end and lower plate 35 are affixed, and the plane of each graded blade 33 is perpendicular to horizontal plane, and graded blade 33 equidistantly distributes, the gap is 23mm～30mm mutually.Each graded blade 33 is 20 ° with sagittal plane institute bevel, and graded blade 33 radical lengths are 60mm.The profile of stage turbine assembly 3 graded blades 33 parts is the frustum of a cone, and its tapering is 18 °, highly is 630mm.
2 housing lower ends, powder delivery chamber are connected with the ring packing frid 25 centered by main shaft 1 center line.The formation labyrinth sealing that matches with upper plate 34 of sealing frid 25.Along grading room upper flange 41 is arranged, sealing frid 25 outer rims and grading room upper flange 41 are tightly connected on grading room 4 housings.
The formation labyrinth sealing that matches of interior sealing blade 32, the external seal blade 31 of inner seal ring 252, outer seal ring 251 and upper plate of sealing frid 25.Upper plate 34 external diameters are greater than lower plate 35 external diameters, affixed interior sealing blade 32 and external seal blade 31 on the upper plate 34, interior sealing blade 32 is arranged the interior ring that consists of centered by main shaft 1 center line, external seal blade 32 is arranged the outer shroud that consists of centered by spindle centerline, the blade of interior sealing blade 32 and external seal blade 31 is perpendicular to upper plate 34, interior sealing blade 32 and external seal blade 31 highly equate to be 30mm, with sagittal plane institute bevel be 25 °, interior sealing blade 32 and external seal blade 31 radially total length are 128mm, and the distance between the internal diameter of the interior ring that the external diameter of the interior ring that interior sealing blade 32 consists of and external seal blade 31 consist of is 8mm.The quantity of interior sealing blade 32 quantity and external seal blade 31 equates that each internally seals blade 32 and external seal blade 31 is on the plane, and the gap in the inner and outer ring that the sealing blade consists of between the blade of front and back is 26mm.
The sealing frid is connected with for 25 times between inner seal ring 252 centered by spindle centerline and outer seal ring 251, two rings and is the labyrinth seal groove.Outer seal ring 251 internal diameters are greater than upper plate 34 external diameter 0.8mm～1.5mm, and outer seal ring 251 rings are tall and big in inside and outside sealing blade 32,31 height and upper plate 34 thickness sum 0.4mm～1.0mm; Inner seal ring 252 internal diameters are greater than the external diameter 0.8mm～1.5mm of the interior ring of interior sealing blade 32 formations, inner seal ring 252 external diameters are less than the internal diameter 0.4mm～1.0mm of the outer shroud of external seal blade 251 formations, and inner seal ring 252 ring height are less than or equal to the height 32,31 of inside and outside sealing blade.Outer seal ring 251 gears of sealing frid 25 are in the upper plate 34 outer rims outside, gap with upper plate 34 outer rims maintenance 0.8mm～1.5mm, inner seal ring 252 is inserted between the outer shroud that interior ring that interior sealing blade 32 consists of and external seal blade 31 consist of, the gap that keeps respectively 0.3mm～0.7mm with the two, the gap that sealing frid 25 and inside and outside sealing blade 32,31 top keep 0.3mm～0.7mm.
Grading room 4 housings are fixed with supporting mass 42 outward, are convenient to the frame that is mounted on of this grader.
The lower plate of stage turbine assembly 3 connects kuppe 5 35 times, and kuppe 5 is the rounding conical surface, and along being connected with lower plate 35 outers, its lower end is cover plate 51 on it, and the cone height is 1/4～1/3 of stage turbine assembly 3 height.
Above-described embodiment only is the specific case that purpose of the present invention, technical scheme and beneficial effect are further described, and the present invention is defined in this.All any modifications of within scope of disclosure of the present invention, making, be equal to replacement, improvement etc., all be included within protection scope of the present invention.
Claims (10)
1. superfine turbine classifier comprises grading room (4) and stage turbine assembly (3), and grading room (4) is a housing, and stage turbine assembly (3) is arranged in the grading room (4), and stage turbine assembly (3) has a plurality of graded blades (33), it is characterized in that:
Described grading room (4) top is powder delivery chamber (2), and powder delivery chamber (2) also are a housing, and a side has meal outlet (21), and meal outlet (21) joins with dust collection; Main shaft (1) is arranged in powder delivery chamber (2) and grading room (4) central authorities, and main shaft (1) stretches out from powder delivery chamber (2) top, is connected with actuating unit; The bearing block (12) of main shaft (1) in bearing is installed on powder delivery chamber (2), the upper flanges (23) of powder delivery chamber (2), central flange (22) and lower end flanges (24) respectively at the upper, middle and lower fixed bearing block (12) of bearing block (12) in the housing of powder delivery chamber (2);
Grading room (4) lower end is connected with the grinding chamber of flour mill; The main shaft (1) that stretches into grading room (4) is fixedly mounted with axle sleeve (14);
Stage turbine assembly (3) comprises upper plate (34), lower plate (35) and graded blade (33), upper plate (34) and lower plate (35) are the ring plate centered by main shaft (1) center line, 3～6 radially connector (16) connect upper plate (34) and axle sleeve (14), graded blade (33) upper end is affixed with upper plate (34), lower end and lower plate (35) are affixed, the blade plane of each graded blade (33) perpendicular to horizontal plane, with sagittal plane institute bevel be 18 °～22 °, graded blade (33) radical length is 50mm～70mm; The profile of graded blade (33) part of stage turbine assembly (3) is the frustum of a cone, and its tapering is 16 °～20 °, highly is 600mm～650mm;
Housing lower end, powder delivery chamber (2) is connected with the ring packing frid (25) centered by main shaft (1) center line, sealing frid (25) the formation labyrinth sealing that matches with upper plate (34); The edge is connected with sealing frid (25) outer fringe seal on grading room (4) housing.
2. superfine turbine classifier according to claim 1 is characterized in that:
The formation labyrinth sealing that matches of the interior sealing blade (32) of the inner seal ring (252) of described sealing frid (25), outer seal ring (251) and upper plate (34), external seal blade (31); Upper plate (34) external diameter is greater than lower plate (35) external diameter, the upper affixed interior sealing blade (32) of upper plate (34) and external seal blade (31), interior sealing blade (32) is arranged the interior ring that consists of centered by main shaft (1) center line, external seal blade (32) is arranged the outer shroud that consists of centered by main shaft (1) center line, the blade of interior sealing blade (32) and external seal blade (31) is perpendicular to upper plate (34), interior sealing blade (32) is highly equal with external seal blade (31), blade plane and sagittal plane institute bevel are 23 °～27 °, interior sealing blade (32) and external seal blade (31) radially total length are 115mm～140mm, and the distance between the internal diameter of the outer shroud that the external diameter of the interior ring that interior sealing blade (32) consists of and external seal blade (31) consist of is 6mm～10mm;
Be connected with inner seal ring (252) and outer seal ring (251) centered by main shaft (1) center line under the sealing frid (25), outer seal ring (251) internal diameter is greater than upper plate (34) external diameter 0.8mm～1.5mm, and outer seal ring (251) ring is tall and big in height and upper plate (34) the thickness sum 0.4mm～1.0mm of inside and outside sealing blade (32,31); Inner seal ring (252) internal diameter is greater than the external diameter 0.8mm～1.5mm of the interior ring of interior sealing blade (32) formation, inner seal ring (252) external diameter is less than the internal diameter 0.4mm～1.0mm of the outer shroud of external seal blade (251) formation, and inner seal ring (252) ring height is less than or equal to the height of inside and outside sealing blade (32,31); Outer seal ring (251) gear of sealing frid (25) is in upper plate (34) the outer rim outside, gap with upper plate (34) outer rim maintenance 0.8mm～1.5mm, inner seal ring (252) is inserted between the outer shroud that interior ring that interior sealing blade (32) consists of and external seal blade (31) consist of, keep the gap with the two respectively, the top of sealing frid (25) and inside and outside sealing blade (32,31) keeps the gap of 0.3mm～0.7mm.
3. superfine turbine classifier according to claim 2 is characterized in that:
Described interior sealing blade (32) and external seal blade (31) highly are 20mm～40mm.
4. superfine turbine classifier according to claim 2 is characterized in that:
The quantity of described interior sealing blade (32) quantity and external seal blade (31) equates that each internally seals blade (32) and external seal blade (31) is on the plane.
5. each described superfine turbine classifier in 4 according to claim 1 is characterized in that:
On described main shaft (1) and the axle sleeve (14) key and the keyway that cooperatively interacts arranged, axle sleeve (14) is installed on the main shaft (1), main shaft (1) has the protrusion step in axle sleeve (14) top, regulating pad (15) is enclosed within on the main shaft (1), is positioned between main shaft (1) step and the axle sleeve (14), screw thread is arranged at main shaft (1) bottom, locking nut (13) fastening shaft sleeve (14) of main shaft (1) bottom.
6. each described superfine turbine classifier in 4 according to claim 1 is characterized in that:
Described graded blade (33) equidistantly distributes, the gap is 23mm～30mm mutually.
7. each described superfine turbine classifier in 4 according to claim 1 is characterized in that:
Connect kuppe (5) under the lower plate (35) of described stage turbine assembly (3), kuppe (5) is the rounding conical surface, and along being connected with lower plate (35) outer, its lower end is cover plate (51) on it.
8. superfine turbine classifier according to claim 7 is characterized in that:
The cone height of described kuppe (5) is 1/4～1/3 of stage turbine assembly (3) height.
9. each described superfine turbine classifier in 4 according to claim 1 is characterized in that:
Described grading room (4) housing is fixed with supporting mass (42) outward.
10. each described superfine turbine classifier in 4 according to claim 1 is characterized in that:
There is soft interface (43) grading room (4) outer, lower end, is connected with the grinding chamber of flour mill.
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| CN 201110116372 CN102274826B (en) | 2011-05-06 | 2011-05-06 | Superfine turbine classifier |
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| CN 201110116372 CN102274826B (en) | 2011-05-06 | 2011-05-06 | Superfine turbine classifier |
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| CN102274826B true CN102274826B (en) | 2013-01-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103203271B (en) * | 2013-04-19 | 2014-10-01 | 昆山聚贝机械设计有限公司 | Dust-proof structure of bearing for classification wheel of jet mill |
| CN104226594B (en) * | 2013-06-08 | 2016-06-22 | 昆山市密友装备制造有限责任公司 | Jet mill grading wheel dust seals structure |
| CN107930768B (en) * | 2017-11-17 | 2019-10-18 | 乐山新天源太阳能科技有限公司 | Powder silicon material is classified recovery system |
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| CN1465439A (en) * | 2002-07-01 | 2004-01-07 | 株洲金科实业有限公司 | Vertical air stream lash micropowder preparation apparatus |
| KR100670186B1 (en) * | 2006-03-16 | 2007-01-17 | 이명섭 | Apparatus for sorting aggregate by circulating air |
| CN101007307A (en) * | 2006-01-23 | 2007-08-01 | 上海建设路桥机械设备有限公司 | Turbine classifier for processing powder |
| CN101195115A (en) * | 2006-12-06 | 2008-06-11 | 上海建设路桥机械设备有限公司 | Turbine grader of pendulum powder mill |
| CN202010658U (en) * | 2011-05-06 | 2011-10-19 | 桂林恒达矿山机械有限公司 | Ultrafine turbine grading machine |
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2011
- 2011-05-06 CN CN 201110116372 patent/CN102274826B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416034A1 (en) * | 1994-05-06 | 1995-07-06 | Krupp Foerdertechnik Gmbh | Sifting method for fine-grain material |
| CN1465439A (en) * | 2002-07-01 | 2004-01-07 | 株洲金科实业有限公司 | Vertical air stream lash micropowder preparation apparatus |
| CN101007307A (en) * | 2006-01-23 | 2007-08-01 | 上海建设路桥机械设备有限公司 | Turbine classifier for processing powder |
| KR100670186B1 (en) * | 2006-03-16 | 2007-01-17 | 이명섭 | Apparatus for sorting aggregate by circulating air |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180205 Address after: 541299 Ling Bei Road, Lingchuan County, Guilin City, the Guangxi Zhuang Autonomous Region, No. 106 Patentee after: Guangxi Guilin aviation heavy heavy machinery Co., Ltd. Address before: 541800 Xiangyang Road, Yongfu County, Guilin City, the Guangxi Zhuang Autonomous Region, No. 59 Patentee before: Guilin Hengda Mining Machinery Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Superfine turbine classifier Effective date of registration: 20220519 Granted publication date: 20130116 Pledgee: Bank of China Limited by Share Ltd. Guilin branch Pledgor: Guangxi Guilin aviation heavy heavy machinery Co.,Ltd. Registration number: Y2022450000075 |