CN101920838A - Device for preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle - Google Patents
Device for preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle Download PDFInfo
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- CN101920838A CN101920838A CN 201010257463 CN201010257463A CN101920838A CN 101920838 A CN101920838 A CN 101920838A CN 201010257463 CN201010257463 CN 201010257463 CN 201010257463 A CN201010257463 A CN 201010257463A CN 101920838 A CN101920838 A CN 101920838A
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Abstract
The invention relates to a device for preventing lump coal from slipping downward for an upper conveying belt type conveyer with a large inclination angle, which comprises a supporting frame, a row of strip-shaped unidirectional blocking plates or blocking bars and a limited rod, wherein the row of strip-shaped unidirectional blocking plates or blocking bars are articulated and installed on the lower end surface of the upper beam of the supporting frame; the row of strip-shaped unidirectional blocking plates or blocking bars comprise a plurality of approximately parallel and mutually independent vertical plates or vertical bars which are arranged at certain intervals; each vertical plate or vertical bar is respectively articulated with the lower end surface of the upper beam of the supporting frame; the limited rod of which the shape is approximately matched with the shape of the upper beam is transversely installed and fixed at the middle upper part of vertical rods at two sides of the supporting frame; the row of strip-shaped unidirectional blocking plates or blocking bars are installed at one side swinging along the upper conveying direction of the belt type conveyer; and the lower ends of the vertical rods at the two sides of the supporting frame are installed on the stand of the upper conveying belt type conveyer. The device of the invention effectively prevents the occurrence of the coal piling phenomenon, further ensures the safe and efficient operation of equipment, and has safety and obvious economic benefit.
Description
One, technical field
The present invention relates to the anti-slip device of a kind of belt conveyer, particularly relate to a kind of preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device.
Two, technical background
Belt conveyer is the important component part of underground coal transport systems, lifting day by day along with the mine production capacity, Kai Cai extension up and down, have higher requirement to improving the belt conveyer safe operation, upper conveying belt type conveyer with large inclination angle particularly, the raw coal that coal breakage point is reprinted in the middle of the belt conveyer in transportation touches when transporting adhesive tape rigidly connecting, can be because of its own inertial effect again along the certain distance of adhesive tape downslide, severe patient can tumble adhesive tape, and machine lane one skilled in the art's safety in serious threat; If belt conveyer is with when carrying shutdown for some reason in the last fortune process, can cause the raw coal of downslide and rear portion the coal piling phenomenon to take place in addition together, influence the safe operation of belt conveyer because the raw coal that inertia unloads converges.
Occur a kind of anti-skidding belt conveyer Chinese patent at present, patent application day is on March 8th, 2007, and Granted publication day is on January 28th, 2008, the patent No.: ZL200720100720.0.This patent is to solve the belt conveyer of tilt installing the problem of solid accumulation at the conveyer low side occur when shutting down by set up skid resistant course at the conveyer low side; but in fortune process on the upper conveying belt type conveyer with large inclination angle; the raw coal that coal breakage point is reprinted touches fortune during adhesive tape rigidly connecting; the downslide problem that takes place because of the raw coal its own inertial can not solve, and can not solve for the coal piling problem that occurs in the generation of conveyer middle and upper part.
Three, summary of the invention
Purpose of the present invention, be in order to solve coal cinder downslide and the coal piling problem that upper conveying belt type conveyer with large inclination angle takes place in last fortune process, for realizing purpose of the present invention, the present invention adopts the preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device, comprise bracing frame, the unidirectional baffle plate of row strip or gear stick and position-limited lever, bracing frame is made of upper beam and both sides montant, at the upper beam lower surface of bracing frame unidirectional baffle plate of hinged installation row strip or gear stick, unidirectional baffle plate of described row strip or gear stick be many substantially parallel to each other, separate vertical plate that keeps at a certain distance away or vertical bar construction, every vertical plate or vertical rod are hinged with the lower surface that bracing frame is put the beams in place separately, the position-limited lever that the middle and upper part of bracing frame both sides montant laterally is mounted with and the shape approximation of putting the beams in place mates, unidirectional baffle plate of row strip or gear stick are installed on upper conveying belt type conveyer and transport the side that direction is swung, and montant lower end, bracing frame both sides is installed on the upper conveying belt type conveyer frame.Unidirectional baffle plate of row strip or gear stick are installed on belt conveyer and transport the side that direction is swung, and promptly unidirectional baffle plate of row strip or gear stick are positioned at spacing cross bar one side, can be along fortune direction swing on the belt conveyer.Unidirectional baffle plate of row strip or gear stick adopt separation type strip vertical plate or vertical rod to form, and can reduce the resistance that transportation on the lump coal is sent.
Put the beams in place a kind of in the array structure down of bracing frame: horizontal straight-bar beam, convex or protruding backward or protruding arc beam downwards, convex or protruding backward or protruding polygonal beam downwards; With a kind of in the array structure down of the position-limited lever of upper beam shape approximation coupling: horizontal straight-bar position-limited lever, convex or protruding backward or downward convex bar, convex or protruding backward or downward protruding folding mast.Put the beams in place and position-limited lever protruding backward, be meant the direction protrusion of transporting on the belt conveyer dorsad.Adopt protruding backward upper beam and position-limited lever, when the lump coal that glides is subjected to the unidirectional baffle plate of row strip or gear stick and stops, can prevent that lump coal is to the both sides landing.Upper beam and the position-limited lever shape selected should keep approx. match.
Convex or protruding backward or protruding downwards arc beam is selected a kind of in arc beams, parabolic girder, the bow beam; Convex or protruding backward or protruding downwards polygonal beam selects two sectional type or three sections with the following formula polygonal beam; Convex or protruding backward or downward convex bar is selected a kind of in circular arc bar, parabola bar, the arch bar; Convex or protruding backward or downward protruding folding mast selects two sectional type or three sections with the following formula folding mast.
Unidirectional baffle plate of row strip or gear stick can adopt steel plate bar or hard plastic lath, also can adopt steel pipe or hard plastic pipe, the spacing of adjacent two unidirectional baffle plates of row strip or gear stick select 5 to 15 centimeters more suitable, but the width that lump coal can't pass through as long as the spacing of adjacent two unidirectional baffle plates of row strip or gear stick can guarantee to glide all can.
Position-limited lever selects hinged with the montant middle and upper part of bracing frame both sides or elasticity is connected.It is to be fixed with elastic component or elastomer block at position-limited lever two ends and support montant junction front and back sides that elasticity connects, and elastic component is a spring, and elastomer block is a rubber block.The front and back sides of montant is meant respectively on conveyer and transports direction one side and go up a side of transporting direction dorsad.When position-limited lever stopped unidirectional baffle plate of row strip or gear stick, elastic component or elastomer block can play the effect that slows down vibrations.
In position-limited lever, include horizontal straight-bar position-limited lever, convex or protruding backward or downward convex bar, convex or protruding backward or downward protruding folding mast.Suit rubber coating or flexible plastic cover on the described position-limited lever can slow down the impact to position-limited lever of unidirectional baffle plate of row strip or gear stick when motion.
Captive joint with upper beam in montant upper end, both sides, connection mode can adopt welding, bolted connection and other captive joint modes.The connection mode of montant and position-limited lever is except adopting hinged or elasticity connects, also can being welding, bolted connection or other connection modes.Bracing frame also can be used as a whole processing and manufacturing.The quantity of montant can be selected more than two, and the quantity of upper beam and position-limited lever can be selected more than one.Montant and upper beam can be made of grooved, angle type, column type, bar shaped or template member.When installing and using, bracing frame can directly be fixed on the belt conveyer, also can be fixed on the ground of belt conveyer transferring adhesive tape both sides, fixed form can adopt in montant lower end boring, and boring cooperates with clamping plate the montant lower end is fixedly connected on the longeron of belt conveyer.Bracing frame the mode on the belt conveyer of being fixed on is not limited to clamping plate and cooperates fixing a kind of mode with the boring of montant lower end, as long as bracing frame can be fixed on above the belt conveyer, and any fixed form that does not influence the belt conveyer normal operation all can adopt.Slit between the carrying surface of the unidirectional baffle plate of row strip or gear stick lower end and belt conveyer should guarantee the lump coal impassabitity that glides.The component part of position-limited lever is as long as can realize limiting the function of unidirectional baffle plate of row strip or gear stick action radius.The hinged member with hinge function of can selecting for use is finished between the unidirectional baffle plate of row strip or gear stick and the bracing frame.
Apparatus of the present invention are installed on the upper conveying belt type conveyer with large inclination angle, and when having coarse coal to pass through below this device on the adhesive tape, lump coal can also upward be transported unidirectional baffle plate of row strip or gear stick jack-up very easily smoothly; When having coarse coal to slide above this device on the adhesive tape, unidirectional baffle plate of row strip or gear stick energy failure-free block coarse coal, prevent it to continue to glide, and transport in continuation under the drive of adhesive tape after lump coal stops to slide.Apparatus of the present invention are after installing and using on the upper conveying belt type conveyer with large inclination angle, can play very obvious effects, safe and practical, prevent that effectively coarse coal from tumbling and preventing the generation of coal piling phenomenon downwards, aspect guaranteeing adhesive tape lane pedestrains safety, reducing full-time clear coal personnel and anti-retaining tape, every year, but create beneficial result was more than 20 ten thousand yuan, had further ensured the safe and highly efficient operation of equipment, and safety, economic benefit are considerable.
Four, description of drawings
Fig. 1 faces structural representation for the preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device
Fig. 2 faces structural representation for the unidirectional gear stick of row strip
Fig. 3 faces structural representation for the horizontal straight-bar position-limited lever of elasticity bonded assembly
Fig. 4 faces structural representation for protruding backward arc beam
Fig. 5 for the elasticity bonded assembly backward the convex bar face structural representation
Fig. 6 faces structural representation for protruding backward polygonal beam
Fig. 7 faces structural representation for the protruding backward two sectional type folding mast of elasticity bonded assembly
Fig. 8 is the structural representation of transporting on the coarse coal by the unidirectional baffle plate of preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device row strip.
The structural representation that Fig. 9 is blocked by the unidirectional baffle plate of preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device row strip for the coarse coal downslide.
Figure 10 is that the preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device is at belt conveyer frame front mounting structure scheme drawing
Five, the specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, the number in the figure explanation: 1 represents montant, and 2 representatives are put the beams in place, 3 represent unidirectional baffle plate of row strip or gear stick, and 4 represent position-limited lever, and 5 represent the boring of montant lower end, and 6 represent hold down groove, 7 represent cross bar, and 8 represent pipe fitting, and 9 represent spring, and 10 represent the arc beam, 11 represent bow, and 12 represent polygonal beam, and 13 represent folding mast.
Embodiment one, referring to Fig. 1, and Fig. 2, Fig. 8, Fig. 9, Figure 10, a kind of preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device comprises bracing frame, the unidirectional baffle plate of row strip or gear stick 3 and position-limited lever 4.Bracing frame is made up of montant 1 and upper beam 2.Montant 1 and put the beams in place and 2 all adopt steel components.The upper end of both sides montant 1 is welded on 2 two ends of putting the beams in place respectively, the lower end of both sides montant 1 is welded on respectively on the longeron of belt conveyer both sides, the upper end of unidirectional baffle plate of row strip or gear stick 3 is hinged on 2 lower surfaces of putting the beams in place, unidirectional baffle plate of row strip or gear stick 3 be many substantially parallel to each other, separate vertical plate that keeps at a certain distance away or vertical bar construction, every vertical plate or vertical rod are hinged with the lower surface of bracing frame upper beam 2 separately, following approximate parabolic shape, this parabolical radian and the belt conveyer loaded section radian approx. match that protrudes downwards of end global shape that overhang of unidirectional baffle plate of row strip or gear stick 3.Position-limited lever 4 two ends are welded on the middle and upper part of bracing frame both sides montant 1 respectively, and approximate parallel with 2 maintenances of putting the beams in place.Upper beam 2 adopts horizontal straight-bar beam, the horizontal straight-bar of the form fit of position-limited lever 4 employings and upper beam 2.Unidirectional baffle plate of row strip or gear stick 3 are positioned at position-limited lever 4 front sides, can fortune direction swing on the belt conveyer, and the front side of position-limited lever 4 is meant a side of fortune direction on the belt conveyer.
When apparatus of the present invention are installed and used, when transporting on the raw coal on the adhesive tape, the raw coal of unidirectional baffle plate of row strip or gear stick 3 belows can be easily with unidirectional baffle plate of row strip or gear stick 3 jack-up, when lump coal was arranged on the adhesive tape from unidirectional baffle plate of row strip or the downslide of gear stick 3 tops, unidirectional baffle plate of row strip or gear stick 3 can failure-freies block coarse coal.Unidirectional baffle plate of row strip or gear stick 3 can be swung in position-limited lever 4 restricted portions.The width and the employed belt conveyer width of upper beam 2 are complementary.Gap size between the carrying surface of the unidirectional baffle plate of row strip or gear stick 3 lower surfaces and belt conveyer should be able to stop the lump coal of downslide.Distance will guarantee not hinder the normal conveying of coarse coal on conveyer between the carrying surface of position-limited lever 4 and belt conveyer.
Embodiment two, referring to Fig. 1, Fig. 4, Fig. 5, Fig. 8, Fig. 9, the meaning of identical representative is identical among Figure 10, number in the figure and embodiment one, with part identical among the embodiment one, no longer repeat, different is: the upper beam 2 of bracing frame is protruding backward arc beam 10, and position-limited lever 4 is protruding backward bow 11, and protruding backward being meant carried fortune direction protrusion on the conveyer.Arc beam 10 is approximate identical with the arc degree of bow 11.The unidirectional baffle plate of row strip or the gear stick 3 that are hinged on arc beam 10 lower surfaces form the arc of carrying fortune direction depression on the belt conveyer.
Embodiment three, referring to Fig. 1, and Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, among the figure with embodiment one in the identical meaning of identical label representative, part with identical among the embodiment one no longer repeats, and different is: the upper beam 2 of bracing frame is selected protruding backward polygonal beam 12, position-limited lever 4 is selected protruding backward folding mast 13, and protruding backward being meant carried fortune direction protrusion on the conveyer.Polygonal beam 12 is approximate identical with the broken line angle angle of folding mast 13.The unidirectional baffle plate of row strip or the gear stick 3 that are hinged on polygonal beam 12 lower surfaces form the dihedral of carrying fortune direction depression on the belt conveyer.
Embodiment four, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, among the figure with embodiment one, embodiment two, embodiment three in the identical meaning of identical label representative, with identical part among the embodiment one, two, three, no longer repeat, different is: belong to elasticity between montant 1 and the position-limited lever 4 and connect, in montant 1 middle and upper part the hold down groove 6 that connects position-limited lever 4 is set, hold down groove 6 correspondence respectively is arranged on both sides montant 1 middle and upper part, finishes unidirectional baffle plate of row strip or the qualification of gear stick 3 action radius positions jointly with position-limited lever 4; Position-limited lever 4 is made up of cross bar 7, pipe fitting 8 and spring 9, and pipe fitting 8 is symmetrically welded at cross bar 7 two ends, and spring 9 is installed in pipe fitting 8 both sides, passes spring 9 and pipe fitting 8 is connected position-limited lever 4 on the hold down groove 6 by attaching parts.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, apparatus of the present invention are installed on the upper conveying belt type conveyer, and when having coarse coal to pass through below device on the adhesive tape, lump coal can be transported unidirectional baffle plate of row strip or also smooth the going up of gear stick jack-up very easily, when having coarse coal above device, to slide on the adhesive tape, unidirectional baffle plate of row strip or gear stick energy failure-free block coarse coal, prevent it to continue to glide, and transport on continuing under the drive of adhesive tape after lump coal stops to slide.Apparatus of the present invention actv. prevents the generation of coal piling phenomenon, has further ensured the safe and highly efficient operation of equipment, and economic benefit and safe effect are remarkable.
Claims (8)
1. preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device, comprise bracing frame, the unidirectional baffle plate of row strip or gear stick and position-limited lever, it is characterized in that: at the upper beam lower surface of bracing frame unidirectional baffle plate of hinged installation row strip or gear stick, unidirectional baffle plate of described row strip or gear stick be many substantially parallel to each other, separate vertical plate that keeps at a certain distance away or vertical bar construction, every vertical plate or vertical rod are hinged with the lower surface that bracing frame is put the beams in place separately, the position-limited lever that the middle and upper part of bracing frame both sides montant laterally is mounted with and the shape approximation of putting the beams in place mates, unidirectional baffle plate of row strip or gear stick are installed on upper conveying belt type conveyer and transport the side that direction is swung.
2. preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device according to claim 1 is characterized in that: montant lower end, support frame as described above both sides is installed on the upper conveying belt type conveyer frame.
3. preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device according to claim 1, it is characterized in that: put the beams in place a kind of in the array structure down of bracing frame, horizontal straight-bar beam, convex or protruding backward or downward protruding arc beam, convex or protruding backward or downward protruding polygonal beam is with a kind of in the array structure down of the position-limited lever of upper beam shape approximation coupling, laterally straight-bar position-limited lever, convex or protruding backward or downward convex bar, convex or protruding backward or downward protruding folding mast.
4. preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device according to claim 3, it is characterized in that: convex or protruding backward or downwards protruding arc beam be a kind of in arc beams, parabolic girder, the bow beam, convex or protruding backward or downward convex bar is a kind of in circular arc bar, parabola bar, the arch bar.
5. preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device according to claim 3, it is characterized in that: convex or protruding backward or downward protruding polygonal beam is two sectional type or the above polygonal beam of syllogic, and convex or protruding backward or downward protruding folding mast is two sectional type or the above folding mast of syllogic.
According to claim 1 with described preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device, it is characterized in that: unidirectional baffle plate of described row strip or gear stick are steel plate bar or hard plastic lath or are steel pipe or hard plastic pipe that the spacing of adjacent two unidirectional baffle plates of row strip or gear stick is 5 to 15 centimeters.
According to claim 1 with described preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device, it is characterized in that: described position-limited lever or elasticity hinged with the montant middle and upper part of bracing frame both sides is connected, described elasticity is connected at position-limited lever two ends and support montant junction front and back sides and is fixed with elastic component or elastomer block, elastic component is a spring, and elastomer block is a rubber block.
8. according to the described preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle device of any one claim in the claim 1,3,4,5, it is characterized in that: in position-limited lever, comprise horizontal straight-bar position-limited lever, convex or protruding backward or downward convex bar, convex or protruding backward or downward protruding folding mast, be set with rubber coating or flexible plastic cover on the described position-limited lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102574638A CN101920838B (en) | 2010-08-19 | 2010-08-19 | Device for preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102574638A CN101920838B (en) | 2010-08-19 | 2010-08-19 | Device for preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920838A true CN101920838A (en) | 2010-12-22 |
| CN101920838B CN101920838B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102574638A Expired - Fee Related CN101920838B (en) | 2010-08-19 | 2010-08-19 | Device for preventing lump coal from slipping downward for upper conveying belt type conveyer with large inclination angle |
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| CN (1) | CN101920838B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935687A (en) * | 2013-09-24 | 2014-07-23 | 丁年生 | Water chestnut conveyor |
| CN105253541A (en) * | 2015-09-24 | 2016-01-20 | 四川省华蓥山煤业股份有限公司李子垭煤矿 | Belt device for preventing gangue from sliding off |
| CN105417007A (en) * | 2015-12-11 | 2016-03-23 | 济南澳海炭素有限公司 | Antiskid chain scraper conveyor for carbon blocks |
| CN112320200A (en) * | 2020-11-30 | 2021-02-05 | 山东里能鲁西矿业有限公司 | Large-inclination-angle belt waste rock blocking device |
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| CN2224821Y (en) * | 1995-05-06 | 1996-04-17 | 宫呈君 | Adjustable T-shape belt damper for coal conveyer |
| US20020038757A1 (en) * | 2000-09-20 | 2002-04-04 | Brandt Industries, Ltd. | Belt conveyor with increased capacity |
| CN201372095Y (en) * | 2009-02-27 | 2009-12-30 | 山东矿机集团股份有限公司 | Stop device for downward belt conveyor with large inclination-angle |
| CN201703820U (en) * | 2010-08-19 | 2011-01-12 | 永城煤电控股集团有限公司 | Lump coal downward-gliding preventer of large spud angle upper conveying belt type conveyor |
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2010
- 2010-08-19 CN CN2010102574638A patent/CN101920838B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2224821Y (en) * | 1995-05-06 | 1996-04-17 | 宫呈君 | Adjustable T-shape belt damper for coal conveyer |
| US20020038757A1 (en) * | 2000-09-20 | 2002-04-04 | Brandt Industries, Ltd. | Belt conveyor with increased capacity |
| CN201372095Y (en) * | 2009-02-27 | 2009-12-30 | 山东矿机集团股份有限公司 | Stop device for downward belt conveyor with large inclination-angle |
| CN201703820U (en) * | 2010-08-19 | 2011-01-12 | 永城煤电控股集团有限公司 | Lump coal downward-gliding preventer of large spud angle upper conveying belt type conveyor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935687A (en) * | 2013-09-24 | 2014-07-23 | 丁年生 | Water chestnut conveyor |
| CN105253541A (en) * | 2015-09-24 | 2016-01-20 | 四川省华蓥山煤业股份有限公司李子垭煤矿 | Belt device for preventing gangue from sliding off |
| CN105417007A (en) * | 2015-12-11 | 2016-03-23 | 济南澳海炭素有限公司 | Antiskid chain scraper conveyor for carbon blocks |
| CN112320200A (en) * | 2020-11-30 | 2021-02-05 | 山东里能鲁西矿业有限公司 | Large-inclination-angle belt waste rock blocking device |
| CN112320200B (en) * | 2020-11-30 | 2022-06-17 | 山东里能鲁西矿业有限公司 | Large-inclination-angle belt waste rock blocking device |
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| CN101920838B (en) | 2012-11-28 |
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Inventor after: Yang Qingsong Inventor after: Zhang Zhihui Inventor after: Shen Zhanwei Inventor after: Huang Qiming Inventor before: Yang Qingsong Inventor before: Zhang Zhihui Inventor before: Shen Zhanwei |
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Free format text: CORRECT: INVENTOR; FROM: YANG QINGSONG ZHANG ZHIHUI SHEN ZHANWEI TO: YANG QINGSONG ZHANG ZHIHUI SHEN ZHANWEI HUANG QIMING |
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Granted publication date: 20121128 Termination date: 20130819 |