SU406569A1 - - Google Patents

Description

one

BACKGROUND OF THE INVENTION The invention relates to bronze hulls of a tube housing body, used, for example, in the cement industry for the shredding of raw materials or cement.

Known coius-step armored lining, equipped with projections B in the form of heels, containing annular sections of armor plates along the length of the mill.

This armored inspection ensures the sorting of the grinding bodies along the length of the mill due to the constant decrease in the relative rotation of the grinding bodies in the area of each conical chair.

The disadvantages of an armored lining are its considerable wear and low grinding efficiency in the mill due to the low grip coefficient of the milling bodies with armored lining, as well as a decrease in the useful volume of the mill.

1 of the invention is to reduce wear on the armor lining and increase grinding efficiency.

This is achieved by the fact that projections are made on the conical surface, constantly increasing in height within the limits of one section, and the surface passing through the ridges of the projections is a truncated cone.

The distance between two adjacent protrusions in a circle does not exceed two or three

diameters of the ball loaded in the mill. Protrusions of each adjacent section can be placed one relative to another.

FIG. 1 shows the mill with the proposed FZ-terovka, section; in fig. 2, 3, and 4 are sections along LA, BB and B-6.

Housing / mills inside lined.

The lining consists of annular sections 2, which are formed by a set of plates 3 with protrusions 4. At the cuts, the configuration of the protrusion and its variation in height within one ring section are visible.

Sorting of grinding 1x bodies is ensured by the fact that the protrusion of each ring section is made constantly increasing in height in the direction of unloading from the mill, and the maximum height of the protrusion is no less than 0.5 of the diameter of the maximum ball, and the minimum is no more than 0.1 of the diameter min.mnogo ball grinding load.

During the rotation of the Mielia mills, the grinding bodies are picked up by protrusions, are located between) 1., repeat the profile of the protrusion in each ring section with a conical surface with a narrowing towards the discharge of material from the mill.

The formation of protrusions n between cone grinding bodies and conical surfaces - Essentially steps, following the length of the mill one by one, are sorted

The grinding bodies located in the layers adjacent to the conical surface, in accordance with the principle of sorting in mills with a conical-stepped armor lining, directed small grinding bodies towards the discharge, and the large ones toward the outlet throat.

Grinding bodies that form conical surfaces and located in the spaces between the protrusions constantly rotate the millies, while at the beginning of the mill’s work, the intervals between the protrusions are filled with a random set of grinding bodies, and as they are sorted by grinding media of the same size that are on this section of the mill.

With the application of the proposed armor lining, the grinding bodies, which are in the spaces between the protrusions and form a conical surface, participate in the grinding of the material, which increases the efficiency of grinding. These grinding bodies rise when the mill is rotated to a great height, have high impact energy, and work in a waterfall mode, which also contributes to an increase in grinding efficiency.

The protrusions eliminate the slippage of the grinding bodies by means of an abrasion during the rotation of the mill, which reduces the wear and tear on the armored equipment.

The circumference between two adjacent protrusions does not exceed two-three diameters of the weighted average ball, which prevents the grinding bodies from falling out of

the gaps between the protrusions in the area of their ascent during the rotation of the mill and help to increase the grinding efficiency in the mill and reduce the wear of the armored vehicle.

For the best coipTBpioiHKH of grinding media and an increase in the speed of movement of the ground material in the mill, which is necessary in a number of cases, the protrusions of each adjacent section can be shifted relative to each other.

Subject invention

Claims (3)

1. A cone-shaped armored lining of a pipe mill, containing annular sections of armor plates arranged along the length of the mill, with a conical working surface, characterized in that, in order to increase the grinding efficiency and reduce the wear of the armored equipment, protrusions are made on the conical surface of the armor plate increasing in height within one section, with the surface passing through the ridges of the projections forming a truncated cone tapering towards the discharge end of the mill. 2. A bladder refill in accordance with claim 1, wherein it is distinguished there that the distance between the bearing and the protrusions along the circumference does not exceed two or three diameters loaded e mill ball. 3. A bladder in accordance with claim 1, characterized in that the protrusions of each adjacent section are offset from each other. Ai li ij -hnn nn -n A - A 85 A (Puz.l 6-5