SU917859A1 - Self-grinding mill - Google Patents

Description

(3) SELF-MILLING MILL

one

The invention relates to the building materials industry,. in particular, to the technique of grinding materials for cement production, as well as to areas that require ground materials.

A self-grinding mill with a short drum on two hollow trunnions is known, and inside the drum is lined with armored plates lifters and airlifts 1.

Such mills are characterized by high intensity and complexity. installation and repair.

Closest to the proposed mill is an autogenous grinding mill, comprising a hull, armored plates with elevators, loading and unloading openings, an actuator, and a spill collection casing 2.

I The disadvantages of such small items are its relatively large metal consumption, which necessitates an increase in the installed power.

the engine, the complexity of installation, repair and transportation4 due to its large size (up to 9 m in diameter).

The aim of the invention is to reduce the metal consumption, improve the manufacturability and transportability of the mill.

. The goal is achieved by the fact that in a well-known self-grinding mill comprising a body, armor plates with elevators, loading and unloading openings, a drive and a spillage collection casing, the mill body is made in the form of a frame with which the armor plates are rigidly fastened.

FIG. 1 shows a mill, a longitudinal section; in fig. 2 - view A of FIG. one; in fig. 3 is a section bB of FIG. 1; in fig. k - section bb fmg. 2; in fig. 5 - section GGD of FIG. 2,

The self-grinding mill contains a casing 1 in the form of a skeleton, bounded in the center by rings 2, and along peri3q

feria rim 3 and over its flange C, fastened by welded strips 5 and bolts 6, thus forming end frame frames to which end face armor plates 7 are attached with bolts 8, creating end walls of a mill (discs) in combination with frame frames, Mutual arrangement of end walls fixed by studs 9 and sleeves 10, peripheral armored plates 11 discs are made with tides 12, and frame frames are installed so that they form with a rim 3 an annular mounting gap 13, in which armored plates 1 are withdrawn with a slit-like opening TI, reinforced ribs 15 stiffness. This ensures the simultaneous execution of armored plates of two functions: the armored vehicle and the cylindrical part of the mill body. A casing 16 for collecting spills is installed around the cylindrical part of the mill, and under the casing, in its upper part are hydraulic nozzles 17. Inside the mill, coaxially with rings 2, there are airlifts 18.

The mill works as follows.

The source material with a transporting agent enters the mill through the loading opening, ground.8594

is removed and removed through the discharge opening and partially through the slots in Ti armor plates.

The self-grinding mill made in accordance with the invention, as compared with the known one, has a smaller (by 10-15) metal consumption, a smaller (by 10) drive power, is more technological in manufacturing and easier to transport to the installation site regardless of its dimensions.

Claims (2)

1. US Patent No. 3078050, cl. 241-27, I960. 2. The patent of France No. 1302371, cl. At 02 C, I960. $$$$ $$ $$$ x $ $ four L H BUT / I Sud / l Fi.g.2 lB ff-ff Fzg five Fi.5