SU13171A1 - Device for determining the size of bulk materials - Google Patents

Description

Typically, the size of the bulk materials is determined by a set of sieves and weight residues on each sieve after sifting, and the grain size curves of the bulk materials are drawn by dots. The proposed Instrument is intended to obtain bulk grain size curves and total grain size curves by applying a volumetric method for determining the residue on individual sieves with fixing the residue on paper.

In FIG. 1 shows a vertical section; FIG. 2 - horizontal section; FIG. 3 is a view from the front of the device for receiving material discharged from the dissemination screen; FIG. 4 - horizontal slit of the device; FIG. 5 is a partial longitudinal section of the seal; FIG. 6 is a cross-section of it; FIG. 7 is adapted to record the size and total size curves, In the open form; fig; 8-: a top view of the device When closed; FIG. 9 is a side view of the front spring clip, and FIG. 10 is a cross-section of the cage.

The sifter for sifting material consists of a number of sieves A (Figs. 1 and 2) located one above the other, of which each side is provided with an opening M, covered with a common hinge cover N. The device for receiving the sifted material is an IT plate (Fig. Nos. 3 and 4), fitted in a stand, equipped with a number of

partitions P, overlapped with glass C and forming a number of compartments, where the material is discharged from screening A; on top of the material, columns J5 are inserted, having in the upper part sharp pins G and p, movable, along the columns, spring clips B with folding plates C (Figs. 3, 9 and 10), attached to the jB hinge on the cage. To compact the sifted material B, the device used a gasket (Figs. 5 and 6), consisting of a plate layer T with a number of partitions Y, between which pins D located under the action of springs are placed. The device for recording the size and total size curves (Figs. 7 and 8) consists of a board 1 with longitudinal partitions X, between which columns E are located, provided with sharp pins in the lower part and B with 8 pins with And, each of which is located in the longitudinal slot of the respective levers J, have a common axis of rotation / K, which can move in the direction perpendicular to the partitions X. A board 2 is attached to the board Jf on hinges which is held by the boards F and is applied and on it the particle size curves and the total grain size curves.

To determine the size of any material, a certain part of it is weighed on the scales and poured into a rassevok,

manually driven or mechanically driven. After sifting, the lid H is opened, the device is applied to the seeding (Figs. 3 and 4) and the material is sifted with the A-seeding screen into the appropriate compartments of this laboratory on top of it are placed columns B, the pins D of which are located along the material size curve; Since the material is poured into the compartments of the device with different densities, it is sealed by means of a sealant (Fig. 5 and 6) i for which purpose the sealant is fixed and the device for receiving the sifted material is applied to it so that its B columns fall between the partitions At the compactor, after which a number of pressures are made on the device. To apply the curvature, the device, being pulled out of the compactor, is applied to the tool to record the curves (Fig. 7 and 8), 1, and the columns B between the partitions X, swivel the lid 2 with paper and press it to the pins / columns B, located along the material size curve, with the result that the paper is punctured along the above curve. To obtain the total particle size curve

of the material on posts B are non-moving. spring clips B are in one straight line so that the mobile clip B of the left JTB Crayon J touches pin D, after which the tool with the material is removed and the columns C are mixed;

partition qi X until the leftmost pillar C rests on the protrusion n (Fig. 7) and the remaining pillars D lean each pin of D on the plate If of the adjacent movable casing D not according to the total material size curve. In order to be able to compare the total particle size curves of different materials, they are brought to a constant height, for which columns B are located between the partitions X, along the total grain size curve (Fig. 7), columns E are moved, then moving the axis K of the levers M extreme right position, remove column B and move the axis X to the left until those lower until the lower pin of column E is located against the constant point of height of the total material size curve. Clamping the board 2 with paper to the posts of the posts D semi-B. WITH.

punctures on the paper according to the total material size curve reduced to a constant height.

Subject patent.

1. A device for determining the size of bulk materials, characterized by a plate P mounted in a stand O and equipped with a series of partitions P covered with glass C and forming, their row of compartments, serving them; on top of the last columns B, fitted with sharp lugs / in the upper part and spring-loaded sleeves B with flaps Y of them movable along the columns (Fig. 3, 9 and 10).

2. In the device described in p. 1, use of a rassevka, consisting of a number of sieves A, arranged one above the other, each of which is laterally provided with an aperture Ж, covered by a common hinged cover H (Fig. 2).

3. When characterized in n. 1 device use a sealant consisting of a plate T with a number of partitions U between which pins D are placed, under the action of i springs and intended when laying the sealant on posts B to seal the material under its last material (Fig. 5 and 6).

4. With the device described in Clause 1, the device for recording KpinHocTn curves and total size curves, characterized by the use of board 1 with longitudinal partitions X, between which the turn; t columns E, having in the lower part sharp pins and in the upper part supplied with crossbars 3 with pins D each of which is located in the longitudinal slot of the respective levers G having a common axis of rotation K, could, breaking down, move in the direction perpendicular to the partitions X to which board 1 on the hinges attaches the board 2 with the paper inserted into it in order to obtain on it a grain size curve and a total grain size curve when pressing on the pins G of columns B inserted into the grooves of the board 1 by attaching the bottom of the device, characterized vapnogo in p. 1, and on the pins and posts (Fig. 7 and 8).