CN2050780U - Lining board of combined self-fixing high-chromium cast iron ball mill - Google Patents
Lining board of combined self-fixing high-chromium cast iron ball mill Download PDFInfo
- Publication number
- CN2050780U CN2050780U CN 89201378 CN89201378U CN2050780U CN 2050780 U CN2050780 U CN 2050780U CN 89201378 CN89201378 CN 89201378 CN 89201378 U CN89201378 U CN 89201378U CN 2050780 U CN2050780 U CN 2050780U
- Authority
- CN
- China
- Prior art keywords
- lining board
- plate
- cast iron
- ball mill
- plate body
- 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
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- Crushing And Grinding (AREA)
Abstract
The utility model provides a lining board of combined self-fixing non screw bolt high-chromium cast iron ball mill, which is a novellining board applied to a crushing apparatus ball mill, and which is composed of a high chromium white cast iron, Ni-hard cast irons, steel alloys of high antifriction, even ordinary white cast iron and other brittle metal antifriction material. The lining board is dual metal combined by means of mechanical configuration, and the lining board carries out the normal function of abrading balls, in order to pre-stress self-fix and integration intensify of the lining board. The utility model ensure the reliability and stability of big and medium ball mill made of brittle metal lining board, the material escaping polluted environment can be prevented, thereby, a simple and convenient method is provided to lower the noise of the grinding mill.
Description
The present invention is a kind of new ball mill shell liner.Ball mill is a kind of size reduction machinery that is widely used in industries such as cement, chemical industry, electric power, mine, glass, refractory material.Liner plate is installed on the grinding mill barrel as wear-resistant consumable accessory.Mostly adopting bolt or dovetail to add bolt, press strip adds mode such as bolt and fixes.Usually cause shutdown maintenance because of the fracture of bolt looseness or liner plate.
Along with the development of high-abrasive material, rich chromium cast iron, ni-hard cast iron, ledeburite steel, steel alloy and so on material is applied on the ball mill gradually with the abrasion resistance of excellence.This class material hardness value is high, general HRc55～63; And toughness value is very low, and general Ak value is 5J/Cm
2About.All belong to the brittle metal material.
When doing ball grinding machine lining board with this class material both at home and abroad, generally do not use separately, and the method for employing and carbon steel or low alloy steel composite casting, to increase the impact resistance of liner plate.Composite casting complex process, quality instability.In fact, in application, can not guarantee the security reliability of mill running.Because the reason of its assembling form, the effect of every block of liner plate of composite casting are still independent performance.Screw then becomes the weakness of monoblock liner plate because of the defective of casting technique decision, but is forced to bear whole active forces that the monoblock liner plate is accepted.Obviously, this design is to do something against one's will.This is inessential for the older generation's anti-friction material with higher toughness deposit value basically.But, but may be fatal to having the material of new generation of excellent abrasion resistance.The fault of finding high wear-resistant brittle metal material liner plate in the application is mainly fracture, and overwhelming majority fracture takes place by screw; Screw has produced a large amount of formation of crack in casting process.And the ability of this class material opposing crackle expansion is poor.
Find in the experiment,, promptly use white cast-iron class brittle metal material instead and only remove screw if continue to use traditional liner plate form; Because the installation of liner plate is by the weakness of touching mode, service condition and brittle metal itself, even can not guarantee its reliability of applying, particularly impulsive force and the bigger corase grind storehouse of impact endurance test shock ripple in the less ball mill of diameter.
Traditional liner plate design can not have been satisfied the development of high-abrasive material.
The objective of the invention is: under the prerequisite condition of the wear-resistant low toughness material mechanical performance of height, design a kind of novel lining plate, guarantee security and the reliability used.And manufacturing and mounting process must be simpler than original liner plate.
The present invention utilizes geometry that plate body is strengthened; The power of utilizing riveting plate and grinding machine abrading-ball in service to produce applies prestressing force to plate body; Utilize the effect of riveting plate and the mechanics principle in ball mill barrel and the liner plate fit form, make every block of liner plate, every circle liner plate and whole liner plate all be in " the whole reinforcement " state.
Implementation method of the present invention:
Every block of liner plate is designed to not have wear-resistant " plate body " and " riveting plate " two independent parts of screw, directly combines when mounted, plate body is cast by high anti-friction material.Its function is wear-resistant, and geometry and size can require decision according to ball mill, but the front view geometric shape must be as accompanying drawing.Radially be the combination installation direction of every circle liner plate simultaneously, liner plate requires sequence consensus.
The riveting plate portion, be divided into again axially and radially two directly make with ordinary carbon steel plate or high-ductility metallic plate, also can cast out.It is shaped as plate body axially or the projection of radial end face, and thickness is 3～40m/m.Diameter according to ball mill diameter and use abrading-ball is selected.Axial or the radial end face that block position also is respectively plate body is installed.The riveting plate is in the ball mill running, and plastic deformation constantly takes place the effect owing to abrading-ball, constantly " riveting " tight adjacent two boards body.Cause liner plate and cylindrical shell in the grinding mill barrel to form wearing course jointly.Each piece liner plate has all increased the intensity of itself, very difficult destruction in the wearing course because of the effect of riveting plate and whole reinforcement.Even phenomenon of rupture appears in certain piece plate body, because of riveting plate and the whole effect of strengthening, can not occur coming off yet, can not influence the function of use of liner plate at all.
Meaning of the present invention is confirmed in production application.That has not only given play to high anti-friction material safely and reliably should have effectiveness, and improved the mill running rate, unit-hour output increases by 7.48% when having improved the output material and being calcium magnesium phosphate, average monthly output improves 27.78%.Reduce the work of the fastening bolt and the replacing liner plate of frequent appearance, greatly reduced labor strength.Saved the bolt expense.And because of the grinding mill barrel non-bolt, provide a kind of method simply and easily for abating the noise, improve the worker laboring environment, thereby a large amount of the saving invested.
Claims (1)
- A kind of novel brittle metal high-abrasive material ball grinding machine lining board is characterized by liner plate by wear-resistant plate body with give stress and forms from part riveting plate two parts admittedly, and mounting means be simply to make up,The geometry of a, plate body and size can require decision according to ball mill, and material is rich chromium cast iron, ni-hard cast iron, wear-resistant class steel alloy even common white iron,B, riveting plate portion, be divided into axial and radially two, the metallic plate that can select the ordinary carbon steel plate for use or have certain plasticity is directly made, also can cast, axial or the radial end face projection as plate body respectively of its front view shape, thickness is 3～40m/m, and it also is respectively the axial or radial end face of plate body that block position is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201378 CN2050780U (en) | 1989-01-30 | 1989-01-30 | Lining board of combined self-fixing high-chromium cast iron ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89201378 CN2050780U (en) | 1989-01-30 | 1989-01-30 | Lining board of combined self-fixing high-chromium cast iron ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050780U true CN2050780U (en) | 1990-01-10 |
Family
ID=4859296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89201378 Expired - Lifetime CN2050780U (en) | 1989-01-30 | 1989-01-30 | Lining board of combined self-fixing high-chromium cast iron ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333872C (en) * | 2005-02-05 | 2007-08-29 | 毛轲 | Integration assembly method of lining board |
-
1989
- 1989-01-30 CN CN 89201378 patent/CN2050780U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333872C (en) * | 2005-02-05 | 2007-08-29 | 毛轲 | Integration assembly method of lining board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Changshun Document name: Notice of termination |