RU2010133477A - METHOD FOR SURFACE HARDENING OF BALL MILLS - Google Patents
METHOD FOR SURFACE HARDENING OF BALL MILLS Download PDFInfo
- Publication number
- RU2010133477A RU2010133477A RU2010133477/02A RU2010133477A RU2010133477A RU 2010133477 A RU2010133477 A RU 2010133477A RU 2010133477/02 A RU2010133477/02 A RU 2010133477/02A RU 2010133477 A RU2010133477 A RU 2010133477A RU 2010133477 A RU2010133477 A RU 2010133477A
- Authority
- RU
- Russia
- Prior art keywords
- balls
- ball
- hardening
- drum
- diameter
- Prior art date
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
Способ поверхностного упрочнения футеровок шаровых мельниц, включающий обработку шарами внутренней поверхности футеровки, отличающийся тем, что шаровая мельница загружается шарами (без породы), с коэффициентом загрузки в интервале 30-40% от внутреннего объема барабана и запускается со скоростью вращения мельницы Vб, которая определяется из выражения: ! Vб=0,75Vб крит, ! где Vб крит - скорость вращения барабана, соответствующая переходу параболической траектории движения шаров к круговой, время бомбардировки t∑ футеровки шарами ! , ! где Dм - диаметр корпуса барабана шаровой мельницы, D - диаметр шара, ti - время между ударами по броне одного и того же шара, dм - диаметр сферической вмятины, образующейся в футеровочной плите после многократного ударного воздействия шара, L - длина дуги окружности барабана, на которой находятся шары внешнего слоя в статическом положении, время между операциями упрочняющего наклепа tм.у.н составляет ! tм.у.н.=hдоп/Vизн, ! где hдоп - допустимая толщина наклепанного слоя, которая может быть подвергнута истиранию; Vизн - скорость износа стали после упрочняющей обработки. The method of surface hardening of the linings of ball mills, including the processing of the inner surface of the lining by balls, characterized in that the ball mill is loaded with balls (without rock), with a load factor in the range of 30-40% of the internal volume of the drum and is launched with the rotation speed of the mill Vb, which is determined from expression:! Vb = 0.75Vb crit,! where Vб crit is the drum rotation speed corresponding to the transition of the parabolic trajectory of the balls to the circular one, the bombardment time t∑ of the lining with balls! ! where Dm is the diameter of the ball mill drum body, D is the diameter of the ball, ti is the time between impacts on the armor of the same ball, dm is the diameter of the spherical dent formed in the lining plate after repeated impact of the ball, L is the length of the arc of the drum circumference, on which the balls of the outer layer are in a static position, the time between operations of hardening hardening tm.u.n is! tm.u.s. = hdop / Viz,! where hdop - the permissible thickness of the riveted layer, which can be subjected to abrasion; Viz - the rate of wear of steel after hardening treatment.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010133477/02A RU2451591C2 (en) | 2010-08-09 | 2010-08-09 | Method of ball mill steel lining surface hardening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010133477/02A RU2451591C2 (en) | 2010-08-09 | 2010-08-09 | Method of ball mill steel lining surface hardening |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2010133477A true RU2010133477A (en) | 2012-02-20 |
RU2451591C2 RU2451591C2 (en) | 2012-05-27 |
Family
ID=45854243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2010133477/02A RU2451591C2 (en) | 2010-08-09 | 2010-08-09 | Method of ball mill steel lining surface hardening |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2451591C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117358376A (en) * | 2023-12-06 | 2024-01-09 | 中信重工机械股份有限公司 | Lining plate and mechanical arm |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547068C2 (en) * | 2013-08-27 | 2015-04-10 | Открытое акционерное общество "Михайловский ГОК" | Hardening of surfaces of ball drum mill steel lining plates |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2715884B1 (en) * | 1994-02-04 | 1996-04-12 | Gec Alsthom Electromec | Method and device for the surface treatment and the prestressing of the interior wall of a cavity. |
RU2120849C1 (en) * | 1996-11-05 | 1998-10-27 | Казаков Владимир Михайлович | Method for strengthening inner surfaces of cylinders |
-
2010
- 2010-08-09 RU RU2010133477/02A patent/RU2451591C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117358376A (en) * | 2023-12-06 | 2024-01-09 | 中信重工机械股份有限公司 | Lining plate and mechanical arm |
CN117358376B (en) * | 2023-12-06 | 2024-02-09 | 中信重工机械股份有限公司 | Lining plate and mechanical arm |
Also Published As
Publication number | Publication date |
---|---|
RU2451591C2 (en) | 2012-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8210754B2 (en) | Radial roller bearing having hollow rollers | |
RU2010133477A (en) | METHOD FOR SURFACE HARDENING OF BALL MILLS | |
CN102275138A (en) | Structure for nozzle of shot-blasting gun | |
CN204051808U (en) | Cement ceramic wear-resisting ball | |
US8905202B2 (en) | Brake drum | |
CN205422661U (en) | Wear dark oil perforating bullet | |
JP2012149721A5 (en) | ||
CN203830080U (en) | Grinding mechanism for efficient ball mill | |
RU2547068C2 (en) | Hardening of surfaces of ball drum mill steel lining plates | |
RU110294U1 (en) | RUBBER-METAL LINE OF THE BALL MILL | |
CN103867556A (en) | Crankshaft for engine | |
CN209508471U (en) | Dacron thread transition wheel | |
CN203525798U (en) | Composite lining plate of ball mill | |
CN201833284U (en) | Direction fixing sleeve | |
RU28636U1 (en) | SHINING BODY | |
CN202360238U (en) | Piston ring provided with electric arc ion multi-element composite metal ceramic cladding with superhard excircle | |
JP2010188834A (en) | Wheel bearing device | |
RU2011140181A (en) | DEVICE FOR STATIC-PULSE UNLOADING THE INNER ROAD OF THE OUTSIDE OF THE BALL BEARING | |
RU2012152630A (en) | METHOD OF PROCESSING | |
Selvarasu et al. | Computer Modeling of Blast Furnace Raceway Formation Kinetics | |
RU2010121271A (en) | BALL DOWNLOAD OF THE DRUM MILL | |
Davenport | A Sharper Choice on North Korea: Engaging China for a Stable Northeast Asia | |
CN104746086B (en) | A kind of surface reinforcing method of nuclear power pump shaft | |
WANG et al. | Damage Assessment for Tunnel Targets Based on Fuzzy Synthesize Assessment | |
JU et al. | Effects of microstructures on the slurry wear properties of X70 pipeline steels |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20120810 |
|
NF4A | Reinstatement of patent |
Effective date: 20130627 |
|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20160810 |