SU599840A1 - Ball mill - Google Patents

Description

The invention relates to annarats for obtaining highly dispersed ororog metals, and in particular oxy alumina for transparent ceramics.

The device for wet grinding with a grinding roller and an iris gland for unloading in the form of a scraper and an inclined chute, slid into the drum during unloading 1, is known.

However, such a device is used for coarse grinding.

The closest to the invention of a technical and achievable result is a ball mill for producing optics that can be found on a wide range of diversified metal oxide oxides, such as alumina, containing ziouliyayenii miliyuyuh bodies of rotational bodies of T1; high alumina aluminum 2.

The disadvantage of this mill is that, as a result of a fine nomol and a warp, oxide alumna is nailed with a thin layer of Barbara stems, and the iomol is practically stopped. In addition, it is difficult to unload the mine and product, as it has to be washed with scrapers even after unloading the balls.

2

The purpose of the invention is to intensify the ice grinder and to return to the process of production: to go to the walls of the drum of the layer of the crushed material: mechanium and mechanize it 1 shipment.

Dost1: it is so. In ball mills for obtaining pure high-concentration powders of metal oxides, for example, aluminum oxide, including a metal filled with grinding wheels made of metal corresponding to a diner, filled with grinding materials, made of metal corresponding to dinol in an oxide; with a firmly fixed buoyr on a Coriuss screw with a scraper attached to the buiker steak, as well as reversing irrigated water, or water, with a single life longer than the service life, a scrubber made of corundum, pair: ep, of corundum powder pnok.

FIG. 1 depicts the proposed ball mill, butroidal section; Fig. 2 is the same in the grinding mode, but is in cross-section; in fig. 3 - in the unloading mode (when the drum is reversed).

A drum I with krpikampad 2 and 3 is rotated by g oddship1p1k; X 4. Inside the screw there is a screw 5 screw with fi and a buiker 7, on one pz of the KOTopoio gioiok neiod -l1io zakrenleyi scraper 8.

The mill is loaded in the grinding mode through the charging port 9 of the chuck 5. During the grinding, the grindable product sticking to the drum walls is cut off with a scraper 8 and returned to the nomol. The part of the material that enters the bunker through the gaps also returns to the grinding by continuously operating 1Spec 5.

After completing the nomol, the direction c) of the appearance of the drum and the screw changes in the opposite direction with a reversible drive. In this case, the crushed product is cut by the scraper 8 and enters the hopper 7, from where it is taken out by the nippek 5 through the unloading hatch 10.

The required degree of grinding of the product is obtained by adjusting the iomol time; purity is ensured by the selection of co-structural materials and the creation of a surface over the Barbara shielding layer of the material to be crushed (for alumina, metallic aluminum and corundum); high performance of the mill is achieved by the mechanization of loading and unloading and the return of the crushed material to irocss.

F o rm} l and inventions

1. A ball mill for producing pure highly dispersed powders of metal oxides, and for example aluminum oxide, including a rotating 6, i | that, with the aim of introducing the process by returning the material to be used to the process and bringing it to the unloading process, the syabzha drum is centered with a screw with a hopper with a riot on the housing body Saw-hank insulated on the wall of the bunker, as well as reversible drive.

2. .meliitsa io and. 1, it is notable with ICM that, in order to magnify the eruk, a scrubber is made of corundum, and, for example, a bug of a set of corundum elasticities. 11 information guides taken into consideration by ekeiertize

1.Levorekoy certificate of the USSR N ° 28097, cl. In 02C 17/10, 1931.

2. Author's testimony, USSR 407579, cl. B 02C 17/00, 1971.