CN202356148U

CN202356148U - Iron removing structure of vertical mill

Info

Publication number: CN202356148U
Application number: CN2011204340466U
Authority: CN
Inventors: 吴春晖; 余文; 汤桌峰
Original assignee: SINOMA-LIYANG HEAVY MACHINERY Co Ltd
Current assignee: SINOMA-LIYANG HEAVY MACHINERY Co Ltd
Priority date: 2011-11-07
Filing date: 2011-11-07
Publication date: 2012-08-01
Anticipated expiration: 2021-11-07

Abstract

The utility model provides an iron removing structure of a vertical mill, and the iron removing structure can be used for effectively removing iron inside the mill. The iron removing structure of the vertical mill is characterized in that a taper hole with a larger part and a lower part is formed on a lining plate at the outer edge of a millstone, a through hole communicated with the bottom of the taper hole is formed on the millstone at the taper hole, and the lower part of the through hole is communicated with the interior of an air ring.

Description

Vertical Mill row iron construction

Technical field

Present technique relates to a kind of Vertical Mill mill row iron construction that is used in the industry grinding system equipment such as cement, metallurgy, coal, electric power.

Background technology

Iron filings particle source in the vertical mill has two aspects usually: on the one hand; In the slag milling process, split away off from abrasive body and liner plate surface, conveying and lifting means surface, more obvious when materials such as abrasive body are relatively poor especially: as to be the iron particle that is mixed in the slag on the other hand.General technology arranges it is on the feeding belt, to be provided with to unload formula tramp iron separator or permanent tramp iron separator, and they only can remove some ferrous powder granules and the metal bulk of exposing in the ribbon feeding process on the surface, and about 80% ferrous powder granules can't be removed and directly get into Vertical Mill.These iron particles get into grinding machine after grinding emanates out; A part is thrown out of mill under action of centrifugal force, through the most of external circulating system that gets into of vane, carry out sorting once more; At this moment most iron particle is left in the mill because stopping of collet arranged.As everyone knows, the grindability of metallic iron can not show a candle to slag and other types composite material, and iron is that a kind of hard and proportion is than the big a lot of material of slag particle.Because iron has ductility, to depress quality grinding of grinding roller and be difficult for reducing, a large amount of little iron blocks and swarf are deposited in collet place, the grinding roller outside, make the grinding roller outer rim wearing and tearing of Vertical Mill quicken, and influence the service life of equipment.Therefore it is also extremely important to remove the iron powder that rests in the mill.

Summary of the invention

The purpose of present technique provides a kind of Vertical Mill row iron construction of iron removal that can be effectively that grinding machine is inner.

This Vertical Mill row iron construction has a up-small and down-big taper hole on the liner plate at mill outer rim place, on the mill at taper hole place, have the through hole that communicates with the taper hole bottom, and the bottom of above-mentioned through hole communicates with vane inside.

Above-mentioned Vertical Mill row iron construction, said through hole is positioned at the top of the material scraping plate of vane.

The beneficial effect of present technique: the driving that material receives centrifugal force flows to the mill outer rim, because collet is higher, has stopped partial material; Material speed slows down thereupon; Finally rest on the mill outer rim, cause heavier little iron block also to concentrate on this, so it is the most serious to cause grinding roller to wear and tear herein.Be selected in above opening one on the position of the mill liner plate here little, below big taper hole, also open a through hole simultaneously in the mill relevant position.Under the ordering about of the extruding of grinding roller and the force of periphery, make material move to the liner plate hole.There is air-flow up the hole from mill, the material of lighter weight is blown back in the mill, but, finally from hole, discharge to drop in the vane, get rid of to outer circulation, through outer circulation the iron particle is removed again through scraper plate owing to the iron granular mass is bigger.Through to liner plate and mill technological transformation, can effectively go out and be accumulated in the iron particle on the mill, thereby well protect grinding roller and liner plate, prolong the service life of roller shell.

Description of drawings

Fig. 1 is a Vertical Mill row iron construction sketch map.

The specific embodiment

Vertical Mill row iron construction referring to shown in Figure 1 has a up-small and down-big taper hole 2 on the liner plate 1 at mill outer rim place, on the mill (disk body) 3 at taper hole place, have the through hole 4 that communicates with the taper hole bottom, and the bottom of above-mentioned through hole communicates with vane inside.Through hole 4 is positioned at the top of the material scraping plate 5 of vane.Grinding roller 6 is on the top of liner plate 1.Collet 7 is in the outside portion of mill outer rim.

Claims

1. Vertical Mill is arranged iron construction, it is characterized in that: on the liner plate at mill outer rim place, have a up-small and down-big taper hole, on the mill at taper hole place, have the through hole that communicates with the taper hole bottom, the bottom of above-mentioned through hole communicates with vane inside.

2. Vertical Mill row iron construction as claimed in claim 1, it is characterized in that: said through hole is positioned at the top of the material scraping plate of vane.