CN209124874U - A kind of Vertical Mill wear resistant roll set - Google Patents
A kind of Vertical Mill wear resistant roll set Download PDFInfo
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- CN209124874U CN209124874U CN201822068842.7U CN201822068842U CN209124874U CN 209124874 U CN209124874 U CN 209124874U CN 201822068842 U CN201822068842 U CN 201822068842U CN 209124874 U CN209124874 U CN 209124874U
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- layer
- cast steel
- hard alloy
- vertical mill
- roll set
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Abstract
The utility model provides a kind of Vertical Mill wear resistant roll set, is made of the normal steel casting layer and abrasion resistant cast steel layer that set gradually from inside to outside, and the material of the normal steel casting layer is ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting cast steel；The also uniform castingin in outer surface of the roller set has several hard alloy columnars, the flush with outer surface of the top surface of the hard alloy columnar and the abrasion resistant cast steel layer, and the bottom surface of hard alloy columnar passes through the abrasion resistant cast steel layer and extend into the normal steel casting layer.After tested, the service life of roller set provided by the utility model, if considering two-sided use when as wheel the form of the foetus roller set, can be used 6 years or more at 3 years or more.
Description
Technical field
The utility model relates to produce the Vertical Mill technical field of cement or cement slurry, especially a kind of Vertical Mill wear resistant roll
Set.
Background technique
The roller set majority of current country's Vertical Mill is the roller set of Technology of Welded Roller set or rich chromium cast iron material, since grinding roller of vertical mill is transported
Capable particularity, roller cover general half a year will built-up welding is primary or turn-over use it is (relative to tire roller) or even shorter.It is this
Situation directly affects the continuous production of cement production enterprise, increases operating cost.
Utility model content
A kind of in order to overcome the deficiencies of the prior art, the utility model provides Vertical Mill wear resistant roll set, service life can
Up to 3 years or more.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The utility model provides a kind of Vertical Mill wear resistant roll set first, the normal steel casting layer by setting gradually from inside to outside and resistance to
Cast steel layer composition is ground, the material of the normal steel casting layer is ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting casting
Steel；The also uniform castingin in outer surface of roller set has several hard alloy columnars, the top surface of the hard alloy columnar with it is described wear-resisting
The flush with outer surface of cast steel layer, the bottom surface of hard alloy columnar pass through the abrasion resistant cast steel layer and extend into the normal steel casting layer
It is interior.
Embodiment as a further preference, the hardness of the normal steel casting layer are 220-260HB.
Embodiment as a further preference, hardness >=HRC58 of the abrasion resistant cast steel layer.
Embodiment as a further preference, the material of the hard alloy columnar are Talide.
Embodiment as a further preference, the hard alloy columnar are cylindrical body, the diameter of this cylindrical body is 5~
30mm。
Embodiment as a further preference, the distance of adjacent hard alloy intercolumniation are the 1~2 of hard alloy column diameter
Times.
Embodiment as a further preference, the length that the hard alloy columnar is extend into the normal steel casting layer are
10~100mm.
Embodiment as a further preference, the shape of roller set are wheel the form of the foetus, taper or cylinder.
The good effect of the utility model: the utility model by using normal steel casting as internal layer ductile layers, using conjunction
The combination of golden abrasion resistant cast steel and hard alloy columnar is as outer abrasion resistant layer, internal layer strong shock resistance, outer layer hard alloy columnar
Main wear-resisting functions are undertaken, abrasion resistant cast steel undertakes secondary wear-resisting functions, and then effectively extends the service life of roller set.By surveying
Examination, the service life of roller set provided by the utility model was at 3 years or more, if considering two-sided make when as wheel the form of the foetus roller set
With can be used 6 years or more.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Vertical Mill wear resistant roll set described in the utility model；
Fig. 2 is the surface texture schematic diagram of Vertical Mill wear resistant roll set described in the utility model.
In figure: 1- normal steel casting layer；2- abrasion resistant cast steel layer；3- hard alloy columnar.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing.
Referring to FIG. 1 and FIG. 2, the preferred embodiment in the utility model provides a kind of Vertical Mill wear resistant roll set, by from inside to outside successively
The normal steel casting layer 1 and abrasion resistant cast steel layer 2 of setting form, the material of the normal steel casting layer 1 be ZG20Mn cast steel (its chemistry at
Divide the requirement for meeting national standard GB/T11352-2009), 2 material of abrasion resistant cast steel layer is alloy wear-resisting cast steel；The roller set
The also uniform castingin in outer surface has several hard alloy columnars 3, and the top surface of the hard alloy columnar 3 is outer with the abrasion resistant cast steel layer 2
Flush, the bottom surface of hard alloy columnar 3 pass through the abrasion resistant cast steel layer 2 and extend into the normal steel casting layer 1.
The hardness of the normal steel casting layer is 220-260HB.
Hardness >=HRC58 of the abrasion resistant cast steel layer.
The material of the hard alloy columnar is Talide.
The hard alloy columnar is cylindrical body, and the diameter of this cylindrical body is 20mm.Certainly, hard alloy columnar may be six
The other shapes such as square body.
In order to enable abrasive resistance maximizes, the distance of adjacent hard alloy intercolumniation is 1.5 times of the cylinder diameter.
For the overall performance for further increasing roller set, the hard alloy columnar extend into the length in the normal steel casting layer
For 50mm.
The shape of the roller set can take turns the form of the foetus, taper or cylinder according to actually required selection.
Illustrate as an example, the alloy wear-resisting cast steel is made of the elemental composition of following mass percentage:
1.7-2.4%C, 0.3-1.1%Si, 0.3-1.1%Mn, 3-5%Cr, 0.5-2%Ni, 3-5%Mo, 2-6%V, 0-0.05%
P, 0-0.05%S, surplus Fe.
Above-mentioned Vertical Mill wear resistant roll set the preparation method is as follows:
Step 1: making casting mould by required roller set shape in advance, and is put into mold corresponding position uniformly distributed hard
Matter alloy column, then in ready casting mould the molten steel of alloy wear-resisting cast steel described in centrifugal casting to form abrasion resistant cast steel
Layer；
Step 2: continuing the molten steel of centrifugal casting normal steel casting after the completion of the casting of abrasion resistant cast steel layer, right after casting
Roller set is whole to be heat-treated so that hardness >=HRC58 of abrasion resistant cast steel layer, the hardness of normal steel casting layer HB220-260 it
Between.
Specifically, heat treatment described in step 2 is according to " JB/T5944-1991 engineering machinery is heat-treated general technology item
Part " in it is quenched or annealing require execute.
Roller set provided by the utility model can be used on the Vertical Mill of the materials such as pulverizing cement, slag, raw material, coal dust,
Realize 3 years or more ultra-long time wear-resisting properties.
Above-described is only the preferred embodiment of the utility model, it should be understood that the explanation of above embodiments is only
It is the method and its core concept for being used to help understand the utility model, is not used to limit the protection scope of the utility model,
It is practical new to should be included in this for all any modifications made within the thought and principle of the utility model, equivalent replacement etc.
Within the protection scope of type.
Claims (8)
1. a kind of Vertical Mill wear resistant roll set, it is characterised in that: by the normal steel casting layer and abrasion resistant cast steel layer set gradually from inside to outside
Composition, the material of the normal steel casting layer are ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting cast steel；The roller
The also uniform castingin in the outer surface of set has several hard alloy columnars, and the top surface of the hard alloy columnar is outer with the abrasion resistant cast steel layer
Flush, the bottom surface of hard alloy columnar pass through the abrasion resistant cast steel layer and extend into the normal steel casting layer.
2. a kind of Vertical Mill wear resistant roll set according to claim 1, it is characterised in that: the hardness of the normal steel casting layer is
220-260HB。
3. a kind of Vertical Mill wear resistant roll set according to claim 2, it is characterised in that: the hardness of the abrasion resistant cast steel layer >=
HRC58。
4. a kind of Vertical Mill wear resistant roll set according to claim 1 or 2 or 3, it is characterised in that: the material of the hard alloy columnar
Matter is Talide.
5. a kind of Vertical Mill wear resistant roll set according to claim 4, it is characterised in that: the hard alloy columnar is cylindrical body,
The diameter of this cylindrical body is 5~30mm.
6. a kind of Vertical Mill wear resistant roll set according to claim 5, it is characterised in that: the distance of adjacent hard alloy intercolumniation is
1~2 times of the cylinder diameter.
7. a kind of Vertical Mill wear resistant roll set according to claim 4, it is characterised in that: the hard alloy columnar extend into described
Length in normal steel casting layer is 10~100mm.
8. a kind of Vertical Mill wear resistant roll set according to claim 1, it is characterised in that: the shape of roller set is wheel the form of the foetus, taper
Or it is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068842.7U CN209124874U (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068842.7U CN209124874U (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209124874U true CN209124874U (en) | 2019-07-19 |
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ID=67248662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822068842.7U Active CN209124874U (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set |
Country Status (1)
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| CN (1) | CN209124874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332657A (en) * | 2018-12-11 | 2019-02-15 | 南京凯盛国际工程有限公司 | A kind of Vertical Mill wear resistant roll set and preparation method thereof |
-
2018
- 2018-12-11 CN CN201822068842.7U patent/CN209124874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332657A (en) * | 2018-12-11 | 2019-02-15 | 南京凯盛国际工程有限公司 | A kind of Vertical Mill wear resistant roll set and preparation method thereof |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhongcai International Intelligent Technology Co.,Ltd. Address before: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee before: NANJING KISEN INTERNATIONAL ENGINEERING Co.,Ltd. |