SU1230857A1 - Device for isolating foreign hard inclusions from clay compound - Google Patents

Description

The invention relates to equipment for the production of building products, in particular for the isolation of foreign solid inclusions from clay mass in the production of ceramic wall products and drainage pipes.

The aim of the invention is to increase the efficiency of the separation of foreign solid inclusions from clay mass.

Figure 1 shows a device for separating foreign solid inclusions from clay mass, a general view; Fig. 2 shows a plate fastening assembly; FIG. 3 is a diagram of the process of separating inclusions at the moment of their passage between the roll gap.

Rollers for separating foreign solid inclusions from clay mass contain a bed 1 on which a screw roller 2 with a rigid surface is rigidly fixed and a roller 3 having an elastic elastic surface 4. Between the rollers below the axis connecting the centers of rotation of the rollers is 1.0 -1.5 / A- (Ri + R2), where A is the distance between the axes of rotation of the rolls, RI and R2 are the radii of the rolls, the plate 5 is installed from the hard roll 2 and in close proximity to the roll 3 with the elastic-elastic surface divider function. Due to the presence of grooves b and 7, this plate 5 can be moved in the vertical and horizontal direction. A feed hopper 8 is installed above the rollers, and a discharge hopper 9 for clay mass and a discharge hopper 10 for separating inclusions 11 are installed below the rollers.

The upper limit of the distance between the edge of the plate and the hard roller should not be more than 1.5 / A- (Rr + R2).

Increasing this distance by more than 50% of the roll gap results in large inclusions in the clay mass.

five

The distance between the spreader and the shaft with a hard surface should not be less than the roll gap, equal to 1 / A- (Ri + R2), since otherwise the rolled clay layer will slide along the edge of the spreader, which at energy consumption.

The device works as follows.

The clay mass contaminated with inclusions enters through the feed hopper 8 into the inter-roll space, where the mass without inclusions, carried by rollers, is forced into the inter-roll gap, and then into the gap between the hard roll 2 and plate 5 to the exit of the rollers through the discharge funnel 9. If present in the mass of solid inclusion, due to the local appearance of significant expansion pressure, solid inclusion 11 creates a depression in the elastic-elastic surface 4 of roller 3 and rotating rollers 2 and 3 is pressed into the inter-roll space, and then it passes between the plate 5 and the roller 3 with an elastic surface in the discharge hopper 10, through which it is led to the dump.

The use of the proposed device makes it possible to completely exclude solid inclusions of a given size from the clay mass, which, in turn, improves the quality of the bricks.

In addition, the application of the proposed device clears the range of use of high-quality clay deposits littered with rocky inclusions.

Since in this device the flow of clay and the flow of inclusions do not intersect with each other, it is possible to increase productivity or reduce the speed of rotation of the rolls to achieve similar performance and to operate the rolls under the roll without distributing the mass over the length of the rolls. This, in turn, reduces the wear of the rolls 0 and increases the uniformity of wear.

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Editor L. Veselovska Order 2311/20

Compiled by L. Chubukova, Tehred I. VeresKorrektor A. Tsko

Circulation 555 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR ISOLATING FROM GLAY MASS FOREIGN SOLID INCLUSIONS, containing a bed, a pair of rolls rotating towards each other, one of which is made with an elastic surface, and the other with a rigid, hopper, as well as receivers of clay and foreign solid inclusions, characterized in that, in order to increase the efficiency of separation of foreign solid inclusions, it is provided with rollers arranged between the plate have elastic surface, wherein the distance between the front edge of the latter and the rigid roll surface is 1.0-1.5 / A (Ri ip R _2), where A - races oyanie between the rotation axes of the rolls, Ri and R ₂ - radiuses of rollers. figs! SU 1230857 A1