CN104368419A - Millstone of vertical mill with function of eliminating scrap iron deposition - Google Patents
Millstone of vertical mill with function of eliminating scrap iron deposition Download PDFInfo
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- CN104368419A CN104368419A CN201410694923.1A CN201410694923A CN104368419A CN 104368419 A CN104368419 A CN 104368419A CN 201410694923 A CN201410694923 A CN 201410694923A CN 104368419 A CN104368419 A CN 104368419A
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- mill
- vertical mill
- millstone
- scrap iron
- notches
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Abstract
The invention relates to a millstone of a vertical mill, in particular relates to a millstone of a vertical mill with a function of eliminating scrap iron deposition, and belongs to the field of millstones of slag vertical mills. A circle of wedge-shaped notches with narrow upper parts and wide lower parts are formed in the outer edge of a lining plate with equal diameters; stepped notches with narrow upper parts and wide lower parts are correspondingly formed in a millstone body below the wedge-shaped notches. The stepped notches are formed in the section of the outer edge of the millstone, and the wedge-shaped notches with the narrow upper parts and the wide lower parts are formed in the outer edge of the lining plate; the wedge-shaped notches and the stepped notches correspond to each other, so that in a rolling process of a milling roller, scrap iron falls into an air ring outer circulating system through the notches; in a production operating process of the slag vertical mill, an effect of removing the scrap iron is achieved, the scrap iron removal period is greatly prolonged, abrasion caused by the scrap iron to the millstone is alleviated, vibration which is caused by a fact that materials with higher density are stacked in the vertical mill in a running process is also reduced, and the running stability of the vertical mill is improved; moreover, the stop frequency is reduced, the artificial maintenance cost is lowered, and the economical benefit is enhanced.
Description
Technical field
The present invention relates to a kind of grinding disc of vertical mill, particularly a kind of have the grinding disc of vertical mill device eliminating iron filings deposition, belongs to slag vertical-mill mill field.
Background technology
Slag vertical-mill primary raw material is the slag that ironworks blast furnace produces.The higher scum of content, slag is there is in slag.Tramp iron separator is typically provided with on the belt of slag vertical-mill material loading, this equipment is for the larger iron block of particle in charging belt and have suction-operated at the tiny iron filings of belt surface, often for the iron filings be wrapped in the middle of the larger slag of particle and be embedded in the iron filings of belt bottom can not total number removing.Therefore unavoidably having iron filings enters in mill, these iron filings in Vertical Mill running a few part due to the effect of centrifugal force be thrown to mill edge after enter external circulating system and be isolated along with the blocking material ring that moves across of material; But most iron filings are centrifuged after power is thrown to mill edge and have been stayed in mill by material covering.(application number: the mill 201010615330.3) disclosing a kind of slag vertical-mill, is made up of mill body, liner plate and blocking material ring Chinese patent, and mill body and liner plate outer end are respectively equipped with mill hole and liner plate hole.
Chinese patent (application number: 2011204340466) disclose upright-mill iron-discharging structure, it is on the liner plate at mill outer rim place, have a up-small and down-big taper hole, the mill at taper hole place has and the through hole communicated bottom taper hole, above-mentioned through hole bottom communicates with vane inside.
On above-mentioned two, patent is the row's of devising iron hole on mill, structure is comparatively simple, mostly just make a call to a taper hole in mill outer rim to communicate with vane, because slag to be subject in roller compaction process iron filings seldom can above the row's of moving to iron hole thus eliminating, the therefore almost row's of not having iron effect.When workman's scheduled shut down overhauls, the iron filings that mill remains can only be removed.Existence due to these iron filings causes the wearing and tearing of mill, makes parking maintenance cycle time, also shortens the life-span of grinding machine.Therefore the iron filings effectively removed in mill are extremely important.
Summary of the invention
The object of the present invention is to provide a kind of grinding disc of vertical mill with elimination iron filings deposition, this grinding disc of vertical mill better can remove in Vertical Mill running the iron filings remained on mill.Improve the accumulation of iron filings in Vertical Mill running, extend the Vertical Mill cycle of operation and life-span.
technical solution:
The present invention includes: mill body, liner plate, isometrically at described liner plate outer rim place have a circle wedge type notch, on the mill body below wedge type notch, correspondence has notch cuttype notch.
Wedge type notch on described liner plate is set to up-narrow and down-wide formula.
The ladder notch of described mill body is set to up-narrow and down-wide formula.
beneficial effect:
Mill outward flange section place of the present invention has notch cuttype notch, liner plate outer rim place has up-narrow and down-wide wedge type notch, wedge type notch is corresponding with notch cuttype notch to be arranged, grinding roller iron filings in roller compaction process are made to fall into vane external circulating system by notch, the effect eliminating iron filings is served in slag vertical-mill production and operation process, substantially prolongs the deironing cycle, reduce the wearing and tearing of iron filings to mill, also reduce the vibration that Vertical Mill produces due to solid accumulation that density is higher in running, improve Vertical Mill operation stability.Decrease shutdown times, reduce manual maintenance's expense, improve economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is wear-resisting lining plate structure schematic diagram;
Fig. 3 is mill body construction schematic diagram.
Detailed description of the invention
Be further described implementation process of the present invention below in conjunction with accompanying drawing, following examples are the explanations to patent of the present invention, and the present invention is not limited to following examples.
As can be seen from Figure 1, mill of the present invention is formed primarily of the abrasion-proof backing block 1 of top and the Vertical Mill body 2 of below, this figure is mill outward flange section, top abrasion-proof backing block 1 outer rim place distance mill center isometrical have 6 equal and opposite in directions and up-narrow and down-wide wedge type notch, the outer rim place of below Vertical Mill body 2, distance mill center has 6 isometrical equal and opposite in directions and up-narrow and down-wide notch cuttype notch.Wedge type notch is corresponding with notch cuttype notch to be arranged, and abrasion-proof backing block 2 lower surface width of rebate is identical with size with Vertical Mill body 2 upper surface width of rebate.Grinding roller 3 iron filings in roller compaction process fall into vane external circulating system 4 by notch, thus mill serves the effect eliminating iron filings.
The present invention has the up-narrow and down-wide wedge type notch of a circle due to isometrical at the abrasion-proof backing block 1 outer rim place of mill, and on the mill body 2 below abrasion-proof backing block 1 groove, correspondence has up-narrow and down-wide notch cuttype notch.Vertical Mill inner chamber is communicated with outside vane, and owing to being negative pressure in Vertical Mill cavity, the wind in vane can be blown into from notch, and the material that the density that can make to fall into notch in mill motion process is less is blown back Vertical Mill inner chamber again; And iron filings density is comparatively large, roll move under influence in notch at grinding roller 3, naturally understand to fall from notch entering outer circulation under gravity.In addition, notch design is up-narrow and down-wide, and making not rolled sufficient bulky grain slag can not fall from notch, also makes mill lower air have larger impulsive force.Notch size is corresponding with principal pressure roller roller footpath, and what the material therefore on mill was each rolls can have material to fall above notch, thus solves the deposition of iron filings on mill.
The grinding disc of vertical mill adopting the specific embodiment of the invention to produce has the function removing iron filings in mill body preferably, reasonable in design, uses reliable, abrasive disk abrasion is reduced, improves Vertical Mill operation stability.Decrease parking clearing times.
Claims (3)
1. one kind has the grinding disc of vertical mill eliminating iron filings deposition, comprise: mill body, liner plate, it is characterized in that, isometrically at described liner plate outer rim place have the up-narrow and down-wide wedge type notch of a circle, correspondingly on the mill body below wedge type notch have up-narrow and down-wide notch cuttype notch.
2. a kind of grinding disc of vertical mill with elimination iron filings deposition according to claim 1, it is characterized in that, the wedge type notch on described liner plate is set to up-narrow and down-wide formula.
3. a kind of grinding disc of vertical mill with elimination iron filings deposition according to claim 1, it is characterized in that, the ladder notch of described mill body is set to up-narrow and down-wide formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694923.1A CN104368419A (en) | 2014-11-27 | 2014-11-27 | Millstone of vertical mill with function of eliminating scrap iron deposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694923.1A CN104368419A (en) | 2014-11-27 | 2014-11-27 | Millstone of vertical mill with function of eliminating scrap iron deposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104368419A true CN104368419A (en) | 2015-02-25 |
Family
ID=52547764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410694923.1A Pending CN104368419A (en) | 2014-11-27 | 2014-11-27 | Millstone of vertical mill with function of eliminating scrap iron deposition |
Country Status (1)
| Country | Link |
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| CN (1) | CN104368419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140398A (en) * | 2016-08-26 | 2016-11-23 | 江苏海建股份有限公司 | Novel automatic iron discharging formula grinding disc of vertical mill and row's difficult-to-grind materials method |
| CN114985059A (en) * | 2022-06-16 | 2022-09-02 | 中信重工机械股份有限公司 | Completely-limited progressive partition type vertical abrasive bed |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000107619A (en) * | 1998-08-05 | 2000-04-18 | Babcock Hitachi Kk | Vertical roller mill |
| WO2004028696A1 (en) * | 2002-09-25 | 2004-04-08 | Alstom Technology Ltd | Coal pulverizer brush seal assembly |
| CN201799305U (en) * | 2010-09-02 | 2011-04-20 | 崔信明 | External circulation type vertical mill |
| CN202356148U (en) * | 2011-11-07 | 2012-08-01 | 溧阳中材重型机器有限公司 | Iron removing structure of vertical mill |
| CN203379932U (en) * | 2013-07-23 | 2014-01-08 | 中材（天津）粉体技术装备有限公司 | Split type millstone of vertical roller mill |
| CN203916765U (en) * | 2014-06-12 | 2014-11-05 | 安玉奎 | A kind of Vertical Mill |
-
2014
- 2014-11-27 CN CN201410694923.1A patent/CN104368419A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000107619A (en) * | 1998-08-05 | 2000-04-18 | Babcock Hitachi Kk | Vertical roller mill |
| WO2004028696A1 (en) * | 2002-09-25 | 2004-04-08 | Alstom Technology Ltd | Coal pulverizer brush seal assembly |
| CN201799305U (en) * | 2010-09-02 | 2011-04-20 | 崔信明 | External circulation type vertical mill |
| CN202356148U (en) * | 2011-11-07 | 2012-08-01 | 溧阳中材重型机器有限公司 | Iron removing structure of vertical mill |
| CN203379932U (en) * | 2013-07-23 | 2014-01-08 | 中材（天津）粉体技术装备有限公司 | Split type millstone of vertical roller mill |
| CN203916765U (en) * | 2014-06-12 | 2014-11-05 | 安玉奎 | A kind of Vertical Mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140398A (en) * | 2016-08-26 | 2016-11-23 | 江苏海建股份有限公司 | Novel automatic iron discharging formula grinding disc of vertical mill and row's difficult-to-grind materials method |
| CN114985059A (en) * | 2022-06-16 | 2022-09-02 | 中信重工机械股份有限公司 | Completely-limited progressive partition type vertical abrasive bed |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |