CN103121241A - Lightweight material mixed stirring device - Google Patents
Lightweight material mixed stirring device Download PDFInfo
- Publication number
- CN103121241A CN103121241A CN2013100349573A CN201310034957A CN103121241A CN 103121241 A CN103121241 A CN 103121241A CN 2013100349573 A CN2013100349573 A CN 2013100349573A CN 201310034957 A CN201310034957 A CN 201310034957A CN 103121241 A CN103121241 A CN 103121241A
- Authority
- CN
- China
- Prior art keywords
- stirring device
- agitating device
- material mixed
- lifting
- mixed stirring
- 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.)
- Pending
Links
Images
Landscapes
- Accessories For Mixers (AREA)
Abstract
The invention provides a lightweight material mixed stirring device comprising a lifting device, a first-level stirring device, a second-level stirring device, a dust remover, a disc charging device and an automatic PLC (programmable logic controller) control system, wherein the lifting device comprises a support and a lifting hopper capable of moving up and down along the support; the first-level stirring device is fixedly arranged and is communicated with the lifting hopper of the lifting device; the second-level stirring device is fixedly arranged below the first-level stirring device, and an entrance is communicated with an exit of the first-level stirring device; the dust remover is a shock pendulous type negative pressure circulation filter bag dust remover, and an air channel of the shock pendulous type negative pressure circulation filter bag dust remover is communicated with the lifting device, the first-level stirring device and the second-level stirring device; the disc charging device is movably arranged below the exit of the second-level stirring device; and the automatic PLC control system is in a communication connection with the lifting device, the first-level stirring device, the second-level stirring device, the dust remover and the disc charging device. By utilizing the lightweight material mixed stirring device, a plurality of materials difficult to mix are uniformly mixed and stirred, and the charging speed is high.
Description
Technical field
The invention belongs to building field, relate in particular to a kind of light material mixed stirring device.
Background technology
As everyone knows, inside and outside wall thermal insulation mortar manufacturing technology for building is to comply with domestic construction field environmental requirement, a kind of new technology of invention in nearly 2 years, it is by multiple light thermal-insulation material, as perlite, cellulose, land plaster, colloid substance etc. mixes, and the unit weight that these materials have is light, unit weight that have is heavy, it is very difficult to mix, affect production efficiency, mix simultaneously dust large, to environment and production process heavy contamination.Generally adopt at present material loading and the mixing plant of other field for multiple light material mix and blend, carry out the production of inside and outside wall thermal insulation mortar for building, result is that material stirring is inhomogeneous, and productivity ratio is low, and is seriously polluted to environment and working site.
Summary of the invention
For defects and the problem of prior art, the object of the invention be to provide automaticity high, stir, discharging speed is fast, be suitable for a kind of light material mixed stirring device that multiple light material mixes.
In order to achieve the above object, the invention provides following technical scheme:
A kind of light material mixed stirring device comprises:
Lifting device, described lifting device comprise support and the lifting hopper that can move up and down along described support;
The one-level agitating device, described one-level agitating device is fixedly installed, and is communicated with the lifting hopper of described lifting device;
Secondary agitating device, described secondary agitating device are fixedly installed on below described one-level agitating device, and entrance is communicated with described one-level agitating device outlet;
Deduster, described deduster is shake pendulum-type negative-pressure cyclic bag dust collector, the air channel of described shake pendulum-type negative-pressure cyclic bag dust collector is communicated with described lifting device, one-level agitating device and secondary agitating device;
Disk feeding device, described disk feeding device move and are arranged on below described secondary agitating device outlet;
The PLC automatic control system, described PLC automatic control system communication connects described lifting device, one-level agitating device, secondary agitating device, deduster and disk feeding device.
Further, described support is formed by connecting by channel-section steel and I-steel, and described lifting hopper moves in described channel-section steel.
Further, described lifting hopper promotes by reductor, reel and steel wire rope.
Further, described one-level agitating device comprises the first agitating device housing and the first shaft, 4 layer of first blade arranged on described the first shaft, and every layer of described first blade has 4 the first leaf wings, and described the first leaf wing is inclined upwardly 78 ° of angles at the 19 ° of angles of inwardly overturning.
Further, described secondary agitating device comprises the second agitating device housing and the second shaft, second blade that haves three layers on described the second shaft, and every layer of described second blade has 8 the second leaf wings.
Further, described the second leaf wing of ground floor is fixedly 165 °, V angle of V-shape, described the second leaf wing of the second layer and described the second shaft oppositely intersect fixing, and with the angle of described the second shaft be 18 °, the 3rd layer of described the second leaf wing and described shaft forward intersect fixing, and with the angle of described the second shaft be 18 °.
Further, described shake pendulum-type negative-pressure cyclic bag dust collector comprises centrifugal blower, shell of dust remover, pendulum shake mechanism, filter bag and bottom ash bucket, it is inner that described centrifugal blower is communicated with described shell of dust remover, the described pendulum shake mechanism fixing described filter bag in bottom, described filter bag is communicated with and is arranged on described shell of dust remover bottom, and described bottom ash bucket is arranged on described filter bag bottom.
Further, described filter bag bottom is provided with spring.
Further, described disk feeding device comprises rotating disk, woven bag fixed mount and turbine worm reducer, and described turbine worm reducer is met described woven bag fixed mount and all is positioned at above described rotating disk, on described woven bag fixed mount, woven bag is set.
Further, described rotating disk comprises interconnective base plate and rotating shaft.
Compact conformation of the present invention, in operating process, automaticity is high, save manpower, make the various materials mixing and stirring that is difficult to mixing, discharging speed is fast, and output can be adjusted arbitrarily within the specific limits, mix simultaneously dust little, low to environment and production process pollution, production efficiency is high, can enhance productivity to reach 300%.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of light material mixed stirring device of the present invention;
Fig. 2 is the structural representation of lifting device in light material mixed stirring device of the present invention;
Fig. 3 is the structural representation of one-level agitating device in light material mixed stirring device of the present invention;
Fig. 4 is the structural representation of secondary agitating device in light material mixed stirring device of the present invention;
Fig. 5 is the structural representation of shake pendulum-type negative-pressure cyclic bag dust collector in light material mixed stirring device of the present invention;
Fig. 6 is the structural representation of disk feeding device in light material mixed stirring device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, a kind of light material mixed stirring device disclosed by the invention is comprised of lifting device 1, one-level agitating device 2, secondary agitating device 3, shake pendulum-type negative-pressure cyclic bag dust collector 4, disk feeding device 5 and PLC automatic control system.
as shown in Figure 2, it is a kind of lifting device 1 for material loading, this lifting device 1 is to do support by vertical channel-section steel 11, the fixing hopper 14 that promotes, at channel-section steel 11 top cross-arm welding H-bars 12, the fixing turbine that is driven by variable-frequency motor on I-steel 12, worm decelerating machine 13, turbine, worm decelerating machine 13 output shafts drive cable drum, draw steel cable by cylinder and be connected to outer partial center one side that promotes hopper 14, promote hopper 14 two scroll wheels are arranged in the inner part, scroll wheel is fixed in channel-section steel 11 grooves, during lifting because boom hoist cable is promoting outer partial center one side of hopper 14, promote hopper 14 power is inwards arranged when promoting all the time, when lifting hopper 14 rises to the requirement height, in the requirement of channel-section steel 11, inwards the crooked raceway of a R is arranged highly, owing to promoting hopper 14, a power is inwards arranged all the time when promoting, force lifting hopper 14 to prolong the crooked raceway of R and do flip-flop movement, in struggling against, material is tumbled in next procedure equipment.Then steel wire rope loosens under driving at turbine, worm decelerating machine 13, promotes hopper 14 correcting action under Action of Gravity Field, repeated work.
As shown in Figure 3, one-level agitating device 2 is comprised of agitating device housing 21, shaft 22,4 layers of blade 23 are arranged on shaft 22, every layer of blade 23 has 4 leaf wings, be inclined upwardly 78 ° of angles at the 19 ° of angles of inwardly overturning, will form when material stirring like this and make downward eddy-currents of material, reach the downward eddy-currents that a various materials is mixed by force, enter secondary agitating device 3.
as shown in Figure 4, secondary agitating device 3 is by agitating device housing 31, shaft 32 forms, blade 33 haves three layers on shaft 32, every layer of blade 33 has 8 leaf wings, ground floor leaf wing is that V-shape fixedly 165 °, V angle will form when material stirring like this and makes material that flowing to the axle center be arranged, 8 leaf wings of second layer blade 33 and shaft 32 oppositely intersect fixing, and be 18 ° with the angle of shaft 32 and will form when the material stirring like this and make material have one to prolong axial anti-Flow of Goods and Materials stream, 8 leaf wings of the 3rd layer of blade 33 and shaft 32 forwards intersect fixing angle with shaft 32 and are 18 ° and will form when material stirring like this and make material have one to prolong axial positive Flow of Goods and Materials stream, by above-mentioned three kinds of mixing powers, make material reach powerful uniform stirring.
as shown in Figure 5, shake pendulum-type negative-pressure cyclic bag dust collector 4 is by centrifugal blower 41, shell of dust remover 42, pendulum shake mechanism 43, filter bag 44 and bottom ash bucket 45 form, air inlet is separately positioned on deduster ash bucket two sides, lifting device 1, one-level agitating device 2, secondary agitating device 3, disk feeding device 5 passes through respectively dust sucting pipeline, be connected to the air inlet of shake pendulum-type negative-pressure cyclic bag dust collector 4, make respectively lifting device 1 by dust sucting pipeline, one-level agitating device 2, secondary agitating device 3 forms negative pressure at device interior, material material dust in lifting and whipping process is not leaked outside, reach the purpose of environment purification.
shake pendulum-type negative-pressure cyclic bag dust collector 4 operation principles: dusty gas passes through air inlet, enter deduster 4 bottom ash buckets, under U-shaped wind deflector effect, make dusty gas reach U-shaped wind deflector two side flow downwards, the flow at high speed air velocity is descended, the equal section of dusty gas deduster 4 bottom ash buckets 45, the larger dust of particle falls under gravity into deduster bottom ash bucket 45 interior discharges, contain filter by filter bag 44 outer surfaces than fine dust gas after, be attached to filter bag 44 outer surfaces than fine dust, the air that purifies is under centrifugal blower 41 suction, be discharged in atmosphere by deduster 4 upper box bodies, reach air cleaning.
As shown in Figure 6, disk feeding device 5 is comprised of rotating disk 51, woven bag fixed mount 52, turbine worm reducer 53.the operation principle of disk feeding device 5: rotating disk 51 is by forming with the base plate 511 of scroll wheel and central rotating shaft 512, be distributed with 8 with the woven bag fixed mount 52 of weighing device by 45° angle on rotating disk 51, the 360 ° of rotations under turbine worm reducer 53 drives of rotating disk 51 central rotating shafts 512, every rotation is 45 ° under the positioner of rotating disk 51 is controlled, woven bag fixed mount 52 is just in time to just below secondary agitating device 3 discharging openings, this moment, position switch sent feeding signal to control centre, secondary agitating device 3 discharging opening electrically operated valves are opened, woven bag feed on the woven bag fixed mount 52, material reaches the filling requirement in woven bag, this moment the weighing device under woven bag, send to control centre and stop feeding signal, secondary agitating device 3 discharging opening electrically operated valves are closed, with the rotating disk 51 of woven bag fixed mount 52 under turbine worm reducer 53 drives, control 45 ° of rotations by position switch and forward next woven bag fill material position to.
Compact conformation of the present invention, in operating process, automaticity is high, save manpower, make the various materials mixing and stirring that is difficult to mixing, discharging speed is fast, and output can be adjusted arbitrarily within the specific limits, mix simultaneously dust little, low to environment and production process pollution, production efficiency is high, can enhance productivity to reach 300%.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (10)
1. a light material mixed stirring device, is characterized in that, comprising:
Lifting device, described lifting device comprise support and the lifting hopper that can move up and down along described support;
The one-level agitating device, described one-level agitating device is fixedly installed, and is communicated with the lifting hopper of described lifting device;
Secondary agitating device, described secondary agitating device are fixedly installed on below described one-level agitating device, and entrance is communicated with described one-level agitating device outlet;
Deduster, described deduster is shake pendulum-type negative-pressure cyclic bag dust collector, the air channel of described shake pendulum-type negative-pressure cyclic bag dust collector is communicated with described lifting device, one-level agitating device and secondary agitating device;
Disk feeding device, described disk feeding device move and are arranged on below described secondary agitating device outlet;
The PLC automatic control system, described PLC automatic control system communication connects described lifting device, one-level agitating device, secondary agitating device, deduster and disk feeding device.
2. light material mixed stirring device according to claim 1, it is characterized in that: described support is formed by connecting by channel-section steel and I-steel, and described lifting hopper moves in described channel-section steel.
3. light material mixed stirring device according to claim 2, it is characterized in that: described lifting hopper promotes by reductor, reel and steel wire rope.
4. light material mixed stirring device according to claim 1, it is characterized in that: described one-level agitating device comprises the first agitating device housing and the first shaft, 4 layer of first blade arranged on described the first shaft, every layer of described first blade has 4 the first leaf wings, and described the first leaf wing is inclined upwardly 78 ° of angles at the 19 ° of angles of inwardly overturning.
5. light material mixed stirring device according to claim 1, it is characterized in that: described secondary agitating device comprises the second agitating device housing and the second shaft, second blade that haves three layers on described the second shaft, every layer of described second blade has 8 the second leaf wings.
6. light material mixed stirring device according to claim 5, it is characterized in that: described the second leaf wing of ground floor is fixedly 165 °, V angle of V-shape, described the second leaf wing of the second layer and described the second shaft oppositely intersect fixing, and with the angle of described the second shaft be 18 °, the 3rd layer of described the second leaf wing and described shaft forward intersect fixing, and with the angle of described the second shaft be 18 °.
7. light material mixed stirring device according to claim 1, it is characterized in that: described shake pendulum-type negative-pressure cyclic bag dust collector comprises centrifugal blower, shell of dust remover, pendulum shake mechanism, filter bag and bottom ash bucket, it is inner that described centrifugal blower is communicated with described shell of dust remover, the described pendulum shake mechanism fixing described filter bag in bottom, described filter bag is communicated with and is arranged on described shell of dust remover bottom, and described bottom ash bucket is arranged on described filter bag bottom.
8. light material mixed stirring device according to claim 7 is characterized in that: described filter bag bottom is provided with spring.
9. light material mixed stirring device according to claim 1, it is characterized in that: described disk feeding device comprises rotating disk, woven bag fixed mount and turbine worm reducer, described turbine worm reducer is met described woven bag fixed mount and all is positioned at above described rotating disk, on described woven bag fixed mount, woven bag is set.
10. light material mixed stirring device according to claim 9, it is characterized in that: described rotating disk comprises interconnective base plate and rotating shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013100349573A CN103121241A (en) | 2013-01-29 | 2013-01-29 | Lightweight material mixed stirring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013100349573A CN103121241A (en) | 2013-01-29 | 2013-01-29 | Lightweight material mixed stirring device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103121241A true CN103121241A (en) | 2013-05-29 |
Family
ID=48452478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2013100349573A Pending CN103121241A (en) | 2013-01-29 | 2013-01-29 | Lightweight material mixed stirring device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103121241A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103287805A (en) * | 2013-06-28 | 2013-09-11 | 苏州工业园区职业技术学院 | Bucket elevator |
CN103465380A (en) * | 2013-09-04 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station |
CN103600412A (en) * | 2013-11-12 | 2014-02-26 | 杭州萧山矿山机械厂 | Powder returning structure for dry-mixed mortar storage silo |
CN106584675A (en) * | 2016-12-08 | 2017-04-26 | 南安市品龙新材料科技有限公司 | Concrete stirrer with high stirring efficiency |
CN109109166A (en) * | 2018-10-31 | 2019-01-01 | 南通宏宇建材科技有限公司 | A kind of environmental protection premixing mortar production device |
CN109260544A (en) * | 2018-10-31 | 2019-01-25 | 中国人民解放军陆军军医大学第附属医院 | Infusing medicine group subpackage box |
CN109352820A (en) * | 2018-09-28 | 2019-02-19 | 武汉晨创润科材料有限公司 | A kind of rapid homogenization and pulping device for the highly dense poor component of assembled light plate |
CN112549292A (en) * | 2020-12-23 | 2021-03-26 | 安徽华奇管业有限公司 | Environment-friendly dust collecting equipment for concrete mixing processing |
CN117656247A (en) * | 2024-01-04 | 2024-03-08 | 河北光太路桥工程集团有限公司 | Raw material stirring device for grouting of highway bridge pore canal |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996028290A1 (en) * | 1995-03-14 | 1996-09-19 | Black Melvin L | Method and apparatus for mixing concrete |
CN2675370Y (en) * | 2003-11-26 | 2005-02-02 | 无锡江加建设机械有限公司 | Multifunctional fully-automatic dry mortar producing device |
CN2690127Y (en) * | 2004-04-23 | 2005-04-06 | 何培鎏 | Vibrative cloth bag vacuum cleaner |
CN2827516Y (en) * | 2005-10-21 | 2006-10-18 | 于树林 | Secondary mixer |
CN201098950Y (en) * | 2007-06-19 | 2008-08-13 | 刘继锋 | Environmental protection cement mortar stirrer |
CN202344675U (en) * | 2011-11-16 | 2012-07-25 | 何慧荣 | Graded continuous mortar mixer |
CN202529155U (en) * | 2012-05-02 | 2012-11-14 | 齐媛媛 | Sack filler for emergency flood fighting of Yellow River |
-
2013
- 2013-01-29 CN CN2013100349573A patent/CN103121241A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996028290A1 (en) * | 1995-03-14 | 1996-09-19 | Black Melvin L | Method and apparatus for mixing concrete |
CN2675370Y (en) * | 2003-11-26 | 2005-02-02 | 无锡江加建设机械有限公司 | Multifunctional fully-automatic dry mortar producing device |
CN2690127Y (en) * | 2004-04-23 | 2005-04-06 | 何培鎏 | Vibrative cloth bag vacuum cleaner |
CN2827516Y (en) * | 2005-10-21 | 2006-10-18 | 于树林 | Secondary mixer |
CN201098950Y (en) * | 2007-06-19 | 2008-08-13 | 刘继锋 | Environmental protection cement mortar stirrer |
CN202344675U (en) * | 2011-11-16 | 2012-07-25 | 何慧荣 | Graded continuous mortar mixer |
CN202529155U (en) * | 2012-05-02 | 2012-11-14 | 齐媛媛 | Sack filler for emergency flood fighting of Yellow River |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103287805A (en) * | 2013-06-28 | 2013-09-11 | 苏州工业园区职业技术学院 | Bucket elevator |
CN103465380A (en) * | 2013-09-04 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station |
CN103465380B (en) * | 2013-09-04 | 2016-08-17 | 三一汽车制造有限公司 | Mortar mixing plant |
CN103600412A (en) * | 2013-11-12 | 2014-02-26 | 杭州萧山矿山机械厂 | Powder returning structure for dry-mixed mortar storage silo |
CN106584675A (en) * | 2016-12-08 | 2017-04-26 | 南安市品龙新材料科技有限公司 | Concrete stirrer with high stirring efficiency |
CN109352820A (en) * | 2018-09-28 | 2019-02-19 | 武汉晨创润科材料有限公司 | A kind of rapid homogenization and pulping device for the highly dense poor component of assembled light plate |
CN109109166A (en) * | 2018-10-31 | 2019-01-01 | 南通宏宇建材科技有限公司 | A kind of environmental protection premixing mortar production device |
CN109260544A (en) * | 2018-10-31 | 2019-01-25 | 中国人民解放军陆军军医大学第附属医院 | Infusing medicine group subpackage box |
CN109260544B (en) * | 2018-10-31 | 2023-03-21 | 中国人民解放军陆军军医大学第一附属医院 | Transfusion medicine component packing box |
CN112549292A (en) * | 2020-12-23 | 2021-03-26 | 安徽华奇管业有限公司 | Environment-friendly dust collecting equipment for concrete mixing processing |
CN117656247A (en) * | 2024-01-04 | 2024-03-08 | 河北光太路桥工程集团有限公司 | Raw material stirring device for grouting of highway bridge pore canal |
CN117656247B (en) * | 2024-01-04 | 2024-07-02 | 河北光太路桥工程集团有限公司 | Raw material stirring device for grouting of highway bridge pore canal |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103121241A (en) | Lightweight material mixed stirring device | |
CN105536614A (en) | Efficient mixing machine convenient to move rapidly | |
CN107457907A (en) | Improved building concrete stirring system | |
CN114345214B (en) | Stirring machine for producing dry powder coating of building outer wall | |
CN106607991A (en) | Horizontal cement slurry stirring system | |
CN209599551U (en) | A kind of non-baking brick machine agitating device | |
CN112934484B (en) | Fly ash flotation separation equipment with turbulent flow type air dispersing device | |
CN206589132U (en) | A kind of many frame concrete process equipments built for bridge construction | |
CN205651515U (en) | Dry powder mortar agitating mixing apparatus | |
CN209365006U (en) | One kind climbing bucket tilt bed and promotes hopper agitating device | |
CN204098934U (en) | Double-layer spiral automatic charging machine | |
CN113351097B (en) | Fiber and powder mixing stirrer | |
CN209663058U (en) | Asphalt mixing plant dust wetting device | |
CN209851278U (en) | Linkage blanking mechanism for pneumatic wet spraying machine | |
CN210616915U (en) | A pnematic mixing arrangement of concrete preparation for little engineering | |
CN208390427U (en) | A kind of fine aggregate screening plant for construction | |
CN106514871B (en) | A kind of construction sand material automatic mixing apparatus | |
CN112917683A (en) | Feeding device of patching machine | |
CN207671338U (en) | A kind of novel airlock | |
CN207030041U (en) | A kind of vertical flyash storage tank | |
CN214871551U (en) | Ceramsite sand batching device | |
CN205441804U (en) | Mining lifting machine | |
CN204234019U (en) | Multifunctional mixer | |
CN107139327A (en) | Mixer | |
CN207390519U (en) | Rigidity revolving plow reclaimer and use its dry-mixing mortar storage tank |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130529 |