CN203245107U - Material screening device and ball-milling material milling and screening device - Google Patents
Material screening device and ball-milling material milling and screening device Download PDFInfo
- Publication number
- CN203245107U CN203245107U CN 201320286830 CN201320286830U CN203245107U CN 203245107 U CN203245107 U CN 203245107U CN 201320286830 CN201320286830 CN 201320286830 CN 201320286830 U CN201320286830 U CN 201320286830U CN 203245107 U CN203245107 U CN 203245107U
- Authority
- CN
- China
- Prior art keywords
- screen cloth
- interior screen
- dust cover
- sieving mechanism
- discharging opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a material screening device which comprises an inner screen (1) used for conducting primary screening on materials and capable of rotating around an axis and an outer screen (2) used for conducting secondary screening on the materials screened by the inner screen. The outer screen surrounds the outer portion of the inner screen and is capable of conducting coaxial rotation with the inner screen. The hole diameter of each screen mesh (11) of the inner screen is larger than that of each screen mesh of the outer screen. The utility model further discloses a ball-milling material milling and screening device which comprises a ball-milling machine (7) used for milling the materials and further comprises the material screening device, wherein a material cylinder of the ball-milling machine conducts coaxial rotation with the inner screen. The additionally arranged inner screen is used for separating sheet-shaped iron slag from the milled materials in advance, so that damage caused by the iron slag to the screens is reduced and the service life of the screens is prolonged.
Description
Technical field
The utility model relates to metallurgy, particularly, relates to a kind of Supplying Sieving Mechanism and ball milling abrasive material and screening plant.
Background technology
Producing of vanadium oxide will be passed through the processing of the technical process such as pretreatment of raw material, roasting, leaching, precipitation and fusing or reduction.In the reparation technology of vanadium oxide, raw material essence slag particle degree is a key factor that affects roasting effect, and the quality of roasting effect directly has influence on again the vanadium yield of whole operation area.An important step that affects smart slag particle degree qualification rate is exactly how material sieves the qualified of guarantee essence slag particle degree, and mainly there is following problem in present Supplying Sieving Mechanism: 1) screen cloth is short service life.The screen cloth twine is thinner, under 75 ℃ smart ballast screen time-sharing environment, easily damages.Only have 5 to 9 the service life of screen cloth in the prior art; 2) contain a large amount of abrasive grits in the material, this part abrasive grit remains in the ground-slag through forming sheet after milling work order, and the size of 80% sheet scum wherein is 6 * 10mm.In screening process, the scribing ability that the edge of sheet scum has is very easily scratched screen cloth, has aggravated the damage of screen cloth; 3) the sheet scum sieves with smart slag, and the sheet scum easily stops up sieve aperture, so that smart slag amasss on sheet scum surface, and enters the abrasive grit groove with the sheet scum, therefore causes the slag inclusion rate of sheet scum up to 9% to 11%; 4) because the requirement of smart slag particle degree is high, so the screen cloth twine is thinner, easily fracture.
The utility model content
The purpose of this utility model provides a kind of Supplying Sieving Mechanism and ball milling abrasive material and screening plant, thereby utilize the interior screen cloth of newly establishing that the sheet scum is separated from the process material of milling in advance, with the wearing and tearing of minimizing scum to screen cloth, and then the service life of prolongation screen cloth.
To achieve these goals, the utility model provides a kind of Supplying Sieving Mechanism.This Supplying Sieving Mechanism comprises: be used for the interior screen cloth that can rotate around axis that material is sieved for the first time, to carry out for the second time outer screen cloth of screening through the material after the interior screen cloth screening with being used for, wherein, outer screen cloth be centered around the outside of interior screen cloth and with interior screen cloth coaxial rotating, and the aperture of the sieve aperture of interior screen cloth is greater than the aperture of the sieve aperture of outer screen cloth.
Preferably, the shape that is shaped as the star with a plurality of wedge angles of the sieve aperture of interior screen cloth; And the gap of wedge angle between two wedge angles of the sieve aperture of adjacent interior screen cloth of the sieve aperture of screen cloth in each.
Preferably, interior screen cloth is the cylindrical shape of both ends open, and wherein, the first end of interior screen cloth is charging aperture, and the second end is first discharging opening that is used for the oversize of screen cloth in the discharge of flare; Outer screen cloth is cylindrical shape, and wherein, the first end of outer screen cloth is fixedly attached to the position of close charging aperture of the periphery wall of interior screen cloth, and the second end is discharged the second discharging opening of the oversize of outer screen cloth for being used for of opening wide; And it is outside that the first discharging opening extends to the second discharging opening.
Preferably, interior screen cloth and outer screen cloth are arranged in the dust cover; And the bottom of dust cover offers the oversize outlet that is connected with the first discharging opening and the second discharging opening, and allows the screenings outlet of the screenings discharge of outer screen cloth.
Preferably, be provided with the isolation baffle plate between oversize outlet and the screenings outlet.
Preferably, outer screen cloth is fixedly connected on the framework of steel reinforcement.
Preferably, the end face of dust cover removably is connected with the sidewall of dust cover; And offer observation panel on the sidewall of dust cover.
On the other hand, the utility model also provides a kind of ball milling abrasive material and screening plant, and this equipment comprises and also comprises above-mentioned Supplying Sieving Mechanism for the ball mill that material is milled; Wherein, the material barrel of ball mill and interior screen cloth coaxial rotating.
Preferably, ball milling abrasive material and screening plant comprise the cylinder that connects material, and are connected with the feed end of interior screen cloth after this end that connects material cylinder runs through dust cover from the outside of dust cover; And be respectively arranged with flange on the port of export of the other end of the cylinder that connects material and the material barrel of ball mill, ball mill removably connects by flange with the cylinder that is connected.
Preferably, connect material the cylinder and dust cover between be provided with sealing ring.
By technique scheme, the utility model provides a kind of Supplying Sieving Mechanism that is provided with two-layer screen cloth.The interior screen cloth that utilization is newly established sieves for the first time to material, and sheet scum that can volume in the material is larger is separated in advance.Then, recycle outer screen cloth the screenings of interior screen cloth is carried out the screening second time, obtain to have the material of default particle diameter.Because the twine of interior screen cloth can adopt thicker twine, therefore can reduce the probability that interior screen cloth is scratched or rubs by the sheet scum.Although and outer screen cloth need to adopt thinner twine because of the requirement of raw meal particle size, because the sheet scum is separated, therefore also can reduce the probability that outer screen cloth is scratched or rubs by the sheet scum.In addition, because material has passed through the preliminary screening of interior screen cloth, even therefore the sieve aperture of outer screen cloth is arranged to slightly greatlyr than standard sieve aperture, also can obtain qualified product.Like this, externally the fineness of screen cloth requires to reduce, and outer screen cloth also can adopt thicker twine, can further reduce the probability that outer screen cloth is scratched or rubs by the sheet scum thus.Therefore, prolonged the service life of the screen cloth of Supplying Sieving Mechanism of the present utility model.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to material screening equipment of the present utility model;
Fig. 2 is the structural representation of interior screen cloth;
Fig. 3 is the sieve aperture shape schematic diagram according to the interior screen cloth of a kind of embodiment of the present utility model;
Fig. 4 is the structural representation of outer screen cloth;
Fig. 5 is the schematic perspective view according to Supplying Sieving Mechanism of the present utility model.
Description of reference numerals
Sieve aperture 12 first discharging openings of 1 interior screen cloth 11 interior screen clothes
2 outer screen cloth 21 frameworks of steel reinforcement 22 second discharging openings
3 dust covers, 31 oversize outlets, 32 screenings outlets
33 end faces
4 isolation baffle plates 5 observation panels 6 cylinder that connects material
The port of export 9 flanges of 7 ball mills, 8 material barrels
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
With reference to figure 1, the utility model provides a kind of Supplying Sieving Mechanism.This Supplying Sieving Mechanism comprises interior screen cloth 1, and is centered around the outer screen cloth 2 of the outside of interior screen cloth 1.Interior screen cloth 1 rotates around axis, thereby material is sieved for the first time.Outer screen cloth 2 also can rotate around axis, thereby will carry out the screening second time through the material after interior screen cloth 1 screening.According to embodiment of the present utility model, outer screen cloth 2 and interior screen cloth 1 coaxial rotating like this can simplified apparatus.And according to embodiment of the present utility model, the aperture of the sieve aperture 11 of interior screen cloth 1 is greater than the aperture of the sieve aperture of outer screen cloth 2.Like this, utilize the interior screen cloth 1 of newly establishing to sieve for the first time, sheet scum that can volume is larger is separated in advance.Then, recycle outer screen cloth 2 screenings of interior screen cloth 1 is carried out the screening second time, thereby obtain to have the material of default particle diameter.Simultaneously, because the aperture of the sieve aperture 11 of interior screen cloth 1 is larger, the twine of interior screen cloth 1 can adopt thicker twine, therefore can reduce the probability that interior screen cloth 1 is scratched or rubs by the sheet scum.Although and outer screen cloth 2 need to adopt thinner twine because of the requirement of raw meal particle size, because the sheet scum is separated, therefore also can reduce the probability that outer screen cloth 2 is scratched or rubs by the sheet scum.
Referring to figs. 2 and 3, according to embodiment of the present utility model, the shape that is shaped as the star with a plurality of wedge angles of the sieve aperture 11 of interior screen cloth 1 is such as but not limited to the shape of four jiaos of stars shown in Fig. 2 and Fig. 3.Like this, can improve the screening effect of screening sheet scum.And, according to embodiment of the present utility model, the gap of wedge angle between two wedge angles of the sieve aperture 11 of adjacent interior screen cloth 1 of the sieve aperture 11 of screen cloth 1 in each.Like this, can improve the density of setting of sieve aperture, thereby further improve the screening effect of screening sheet scum.
With reference to figure 4, according to embodiment of the present utility model, outer screen cloth 2 is fixedly connected on the framework of steel reinforcement 21.Framework of steel reinforcement 21 has stronger enabling capabilities, and during screen cloth 2 screening materials carrying, framework of steel reinforcement 21 can be shared the material gravity pressure that outer screen cloth 2 bears, thereby can prolong the service life of outer screen cloth 2 outside.It should be noted that because material has passed through the preliminary screening of interior screen cloth 1, therefore except the sheet scum was substantially separated, some other oarse-grained material was also separated.Therefore, the sieve aperture of outer screen cloth 2 can be arranged to slightly larger than standard sieve aperture, can obtain qualified product equally.For example, if need 120 purpose fine powders, outer screen cloth 2 is arranged to 30 order to 50 purpose screen clothes usually, just can satisfy the qualification rate requirement of the fine powder of granularity 85%, therefore can obtain qualified product.That is to say, by the first screening of interior screen cloth 1, externally the fineness of screen cloth 2 requires and can reduce.
With reference to figure 1, according to embodiment of the present utility model, interior screen cloth 1 is the cylindrical shape of both ends open.Wherein, the first end of interior screen cloth 1 is the charging aperture of Supplying Sieving Mechanism, and the second end forms the first discharging opening 12, the oversize of screen cloth 1 in this first discharging opening 12 is used for discharging.Because it is tubaeform that the oversize of interior screen cloth 1 take the larger sheet scum of volume as main, therefore preferably is arranged to the first discharging opening 12, thereby can more successfully the oversize of interior screen cloth 1 be discharged.
In more detail, according to embodiment of the present utility model, outer screen cloth 2 is cylindrical shape.Wherein, the first end of outer screen cloth 2 is fixedly attached to the position of close charging aperture of the periphery wall of interior screen cloth 1, and the second end opens wide and forms the second discharging opening 22, and this second discharging opening 22 is used for discharging the oversize of outer screen cloth 2.Further, according to embodiment of the present utility model, the first discharging opening 12 extends to the outside of the second discharging opening 22.Like this, the horn shape of the first discharging opening 12 can play the effect of blocking, and the oversize that prevents interior screen cloth 1 launches to outer screen cloth 2 places and enters in the screenings of outer screen cloth 2 and affect product quality.
With reference to figure 1 and Fig. 5, according to embodiment of the present utility model, interior screen cloth 1 and outer screen cloth 2 are arranged in the dust cover 3.Like this, whole screening process can be finished in dust cover 3, can effectively avoid dust pollution, the Protection environment.According to embodiment of the present utility model, the end face 33 of dust cover 3 removably is connected with the sidewall of dust cover 3, thereby is convenient to installation and the repair and maintenance of Supplying Sieving Mechanism, and is convenient to organize the spare unit under the production line to get the raw materials ready.For example, the end face 33 of dust cover 3 can be with side walls hinged, and as shown in Figure 5, end face 33 can be raised along the direction rotation of arrow indication.In addition, according to embodiment of the present utility model, can offer observation panel 5 at the sidewall of dust cover 3, whether damaged in order to observe outer screen cloth 2.
Continuation is with reference to figure 1 and Fig. 5, and dust cover 3 also has discharging functions except having above-mentioned dust reduction capability.Specifically, the bottom of dust cover 3 offers oversize outlet 31 and screenings outlet 32.Wherein, oversize outlet 31 is connected with above-mentioned the first discharging opening 12 and the second discharging opening 22, thereby the oversize of interior screen cloth 1 and outer screen cloth 2 is discharged.Screenings outlet 32 is with the screenings of outer screen cloth 2, i.e. the material that screening is good is discharged.As shown in Fig. 1 and Fig. 5, infundibulate is arranged in order to collecting powder material in the bottom of dust cover 3, and screenings outlet 32 is the outlet of funnel.Further, according to embodiment of the present utility model, be provided with isolation baffle plate 4 between oversize outlet 31 and screenings outlet 32, entering into powder material in order to the oversize that prevents interior screen cloth 1 and outer screen cloth 2 affects product quality.
According to above-mentioned, can make flaring the first discharging opening 12 and isolation baffle plate 4 match the isolation in realizing between the screenings of the oversize of screen cloth 1 and outer screen cloth 2 and outer screen cloth 2.For example, as shown in fig. 1, with the isolation baffle plate 4 be arranged on the second discharging opening 22 the edge under, prevent that outer screen cloth 2 oversizes in the second discharging opening 22 from entering in the powder material.In addition, the first discharging opening 12 is extended to the outside of the second discharging opening 22 and the interval certain with 4 maintenances of isolation baffle plate.Like this, the oversize of interior screen cloth 1 can enter into oversize outlet 31 swimmingly, and the blocking and isolate blocking of baffle plate 4 of the flaring edge by the first discharging opening 12, and the oversize that substantially can stop interior screen cloth 1 enters into powder material.The oversize of outer screen cloth 2 then can enter into oversize outlet 31 by the interval between the first discharging opening 12 and the isolation baffle plate 4.
On the other hand, the utility model also provides a kind of ball milling abrasive material and screening plant.With reference to figure 1, this ball milling abrasive material and screening plant comprise the ball mill 7 that material is milled, and aforesaid Supplying Sieving Mechanism.The material barrel of ball mill 7 rotates around axis, is welded with lifting blade on the madial wall of material barrel.In the rotary course of material barrel, lifting blade can guide and promote material and little by little move to the direction of the port of export 8 of material barrel.
In addition, ball milling abrasive material and screening plant also comprise the cylinder 6 that connects material.This connect material a cylinder end of 6 after dust cover 3 is run through in the outside of dust cover 3 be arranged on dust cover 3 the feed end of interior screen cloth 1 be connected.Between connect material cylinder 6 and dust cover 3, be provided with sealing ring, be used for preventing the dust leakage.Connecting material is respectively arranged with flange 9 on the port of export 8 of material barrel of cylinder 6 the other end and ball mill 7, and ball mill 7 and the cylinder 6 of connecting material interconnect by flange 9.By this, can realize material barrel and interior screen cloth 2 coaxial rotatings of ball mill 7.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible combinations.
In addition, also can carry out any combination between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. Supplying Sieving Mechanism, it is characterized in that, this Supplying Sieving Mechanism comprises: be used for the interior screen cloth (1) that can rotate around axis that material is sieved for the first time, to carry out through the material after described interior screen cloth (1) screening for the second time outer screen cloth (2) of screening with being used for, wherein, described outer screen cloth (2) be centered around the outside of described interior screen cloth (1) and with described interior screen cloth (1) coaxial rotating, and the aperture of the sieve aperture (11) of described interior screen cloth (1) is greater than the aperture of the sieve aperture of described outer screen cloth (2).
2. Supplying Sieving Mechanism according to claim 1 is characterized in that, the shape that is shaped as the star with a plurality of wedge angles of the sieve aperture (11) of described interior screen cloth (1); And
The described wedge angle of the sieve aperture (11) of each described interior screen cloth (1) is positioned at the gap between two described wedge angles of sieve aperture (11) of adjacent described screen cloth (1).
3. Supplying Sieving Mechanism according to claim 1 and 2, it is characterized in that, described interior screen cloth (1) is the cylindrical shape of both ends open, wherein, the first end of described interior screen cloth (1) is charging aperture, and the second end is first discharging opening (12) for the oversize of discharging described interior screen cloth (1) of flare;
Described outer screen cloth (2) is cylindrical shape, wherein, the first end of described outer screen cloth (2) is fixedly attached to the position of close described charging aperture of the periphery wall of described interior screen cloth (1), and the second end is discharged second discharging opening (22) of the oversize of described outer screen cloth (2) for being used for of opening wide; And
Described the first discharging opening (12) extends to described the second discharging opening (22) outside.
4. Supplying Sieving Mechanism according to claim 3 is characterized in that, described interior screen cloth (1) and outer screen cloth (2) are arranged in the dust cover (3); And
The bottom of described dust cover (3) offers the oversize outlet (31) that is connected with described the first discharging opening (12) and the second discharging opening (22), and allows the screenings outlet (32) of the screenings discharge of described outer screen cloth (2).
5. Supplying Sieving Mechanism according to claim 4 is characterized in that, is provided with isolation baffle plate (4) between described oversize outlet (31) and the screenings outlet (32).
6. Supplying Sieving Mechanism according to claim 3 is characterized in that, described outer screen cloth (2) is fixedly connected on the framework of steel reinforcement (21).
7. Supplying Sieving Mechanism according to claim 6 is characterized in that, the end face (33) of described dust cover (3) removably is connected with the sidewall of described dust cover (3); And
Offer observation panel (5) on the sidewall of described dust cover (3).
8. a ball milling abrasive material and screening plant comprise for the ball mill that material is milled (7), and it is characterized in that, described ball milling abrasive material and screening plant also comprise the described Supplying Sieving Mechanism of any one among the claim 1-7;
Wherein, the material barrel of described ball mill (7) and described interior screen cloth (2) coaxial rotating.
9. ball milling abrasive material according to claim 8 and screening plant, it is characterized in that, described ball milling abrasive material and screening plant comprise the cylinder (6) that connects material, and are connected with the feed end of described interior screen cloth (1) this end that connects material cylinder (6) runs through described dust cover (3) from the outside of described dust cover (3) after; And
Be respectively arranged with flange (9) on the port of export (8) of the material barrel of described connect material the cylinder other end of (6) and described ball mill (7), described ball mill (7) and the being connected cylinder (6) that connects material passes through described flange (9) and removably connects.
10. ball milling abrasive material according to claim 9 and screening plant is characterized in that, described connecting material is provided with sealing ring between cylinder (6) and the described dust cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320286830 CN203245107U (en) | 2013-05-23 | 2013-05-23 | Material screening device and ball-milling material milling and screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320286830 CN203245107U (en) | 2013-05-23 | 2013-05-23 | Material screening device and ball-milling material milling and screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245107U true CN203245107U (en) | 2013-10-23 |
Family
ID=49371571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320286830 Expired - Lifetime CN203245107U (en) | 2013-05-23 | 2013-05-23 | Material screening device and ball-milling material milling and screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203245107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599829A (en) * | 2013-11-20 | 2014-02-26 | 兖矿集团有限公司 | Aluminum slag separating system of vacuum ladles for electrolytic aluminum |
| CN107649382A (en) * | 2017-09-29 | 2018-02-02 | 江苏云端重工科技有限公司 | A kind of waste asphalt sieving plate |
| CN111468244A (en) * | 2020-05-29 | 2020-07-31 | 济南大学 | Ball mill for industrial building materials |
-
2013
- 2013-05-23 CN CN 201320286830 patent/CN203245107U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599829A (en) * | 2013-11-20 | 2014-02-26 | 兖矿集团有限公司 | Aluminum slag separating system of vacuum ladles for electrolytic aluminum |
| CN103599829B (en) * | 2013-11-20 | 2016-04-13 | 兖矿集团有限公司 | Electrolgtic aluminium vacuum ladle aluminium slag piece-rate system |
| CN107649382A (en) * | 2017-09-29 | 2018-02-02 | 江苏云端重工科技有限公司 | A kind of waste asphalt sieving plate |
| CN111468244A (en) * | 2020-05-29 | 2020-07-31 | 济南大学 | Ball mill for industrial building materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203245107U (en) | Material screening device and ball-milling material milling and screening device | |
| CN101569871A (en) | Discharging device for horizontal planetary ball mill | |
| CN207238220U (en) | A kind of flour mill with elevator | |
| CN107297237A (en) | A kind of multi-stage crushing screening installation for building | |
| CN206996695U (en) | A kind of multi-stage crushing screening installation for building | |
| CN204338454U (en) | A kind of cement grinding mill abrasive body screening plant | |
| CN115254290A (en) | Building rubbish breaker | |
| CN105149036A (en) | Coal crushing device | |
| CN107670817A (en) | A kind of building waste crushes special purpose robot | |
| CN205056112U (en) | Prevent sample breaker of jam | |
| CN107907391B (en) | Sampling machine for crushing and dividing mineral products | |
| CN204159430U (en) | Charging gear on gyratory crusher | |
| CN113385283A (en) | Iron ore crushing and refining device | |
| CN105344601A (en) | Anti-blocking type drum screen with secondary screening device | |
| CN209735692U (en) | Screening device is smashed to hollow brick raw materials for production | |
| CN204602295U (en) | A kind of ore crusher | |
| CN201295624Y (en) | Rotary bastard coal smash separator | |
| CN105499115A (en) | Wet type bag breaking and screening machine | |
| CN203830067U (en) | Sieve-free hammer crusher | |
| CN204247308U (en) | A kind of ball mill drawing mechanism | |
| CN209866184U (en) | Equipment for crushing and collecting scrap steel | |
| CN208944251U (en) | A kind of grinding mill barrel structure | |
| CN205217073U (en) | Drum -type slag crushing and screening device | |
| CN207533312U (en) | A kind of standing crusher of band screening | |
| CN207680689U (en) | Electrode of lithium cell graphite material breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |