SU1369794A1 - Arrangement for grinding materials - Google Patents

Abstract

The invention relates to a device for grinding materials. The purpose of the invention is the expansion of technological capabilities. The device contains a rotating cylindrical drum 4 with a drive 5 and the first roll 12 inside it, rotating from the drive 6 by means of the yoke 7. Inside the drum there is a cam camshaft 1 rotating with the drive 3 and having the possibility of reciprocating movement coaxially with it. Cams 10 and 11 of shaft 1 interact with roller 9 fixed on truncated plunger 8, the other end of which is connected to roller 12. The roller 9 is driven sequentially in interaction with cam either of an involute profile or trapezoidal profile, it is possible with D but to carry out respectively crushing effect of the roll on the layer of material 13, or abrasive. 4 il. (L

Description

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The invention relates to the technique of grinding solid materials and can be used in the chemical and mining and metallurgical industries, and Taipse in the building materials industry and the foundry industry.

The purpose of the invention is the expansion of technological capabilities.

FIG. 1 shows the kinematic scheme of the described device for grinding materials, axial section; in fig. 2 is a section A-A in FIG. in fig. 3 and 4 - radial section of the cams.

The device contains a cam camshaft 1, which can be axially displaced along arrows 2 and rotates from the drive 3. With the shaft, the drum 4 rotates from the drive 5 and the working body from the drive 6 rotates.

The working member consists of a yoke 7 and a plunger 8 rotating coaxially with the shaft 1 from the drive 6. The plunger 8 is at one end pivotally connected with the roller 9 interacting with the cams 10 or 11 depending on the axial displacement of the shaft 1 in the direction of arrow 2. The other with its end, the plunger B is pivotally connected to the roller 12, which grinds the material 13, and is spring-loaded relative to the sleeve 7 by the spring 14. The latter is isolated from the material by the deformable seal 15.

In the process of grinding the material, the shaft 1, the drum 4 and the working member rotate at different angular speeds.

Under the influence of the spring 14, the roller tends to penetrate into the material 13, and under the action of the cams 10 or 11 is removed from the material 13 and, thus obtaining reciprocating radial displacements, improves the grinding characteristics of the particle dispersity.

Using various types of cam sections, it is possible to carry out either abrasive (cam 10) or fraction (cam 11) impact of roller 12 on material 13, thereby improving (decreasing) the particle size dispersion interval and creating prepactors for controlling and automating the process.

The difference between the angular velocities of the shaft 1 and the working body often provides

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the intensity and intensity of the crushing-abrasive impact of the roll 12 during the grinding of the material, the difference in angular velocities of the drum 4 and the working body provides the impact of the latter on the material 13 over the entire cylindrical surface of the drum 4.

FIG. 2 shows one working body, however, in the radial plane it is possible to arrange a larger number of working bodies to compensate for a possible imbalance. The same can be done by placing several working bodies along the axis of the device at different angles to each other.

Using multi-speed drives 3, 5 and 6, it is possible to automate the control of the material grinding process.

Thus, by introducing the working body into the material, a finer grinding of the material is provided; using different combinations of grinding and crushing of the material in time, the stability of grain sizes of the material is ensured and the prerequisites for automation of the grinding process are created, and the application is A system for combining and distributing the grinding of a material over the surface of a layer of material with the aim of controlling the angular velocities of the camshaft, the drum and the tool, as well as the axial displacement of the cams, automates the control of the grinding process.

The arrangement of the camshaft, sleeve and plunger inside the mill allows grinding not only wet but also dry dusting materials, and this expands the technological possibilities of the invention. The sequencing of the axial displacement of the cams and the frequency of their effect (by controlling the angular velocities of the elements of the mill rotating coaxially) on the material, the automation of the whole process is achieved.

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Claims (1)

Invention Formula A device for grinding materials, containing a rotating cylindrical drum, inside which a rotary wheel is mounted around the axis of the drum carrier and connected to the last grinding roller, characterized in that, in order to expand technological capabilities, it is equipped with a camshaft, part of which is fitted with cams on it inside the drum along its axis, while the shaft is mounted with the possibility of reciprocating movement, and the carrier is made in as a clip with a spring-loaded plunger, on which the grinding roller is strengthened, and the other end of the plunger interacts with the cams of the camshaft with a roller, one cam having an evolvent profile and the other a trapezoidal one. fig 2 Fig.Z fie.