SU1405890A1 - Apparatus for determining granulometric composition of loose materials - Google Patents

Abstract

This invention relates to the sorting of solid materials (M) by size. The purpose of the invention is to improve the quality of determining the granulometric composition when working with process chips. On a movable horizontal platform 2 mounted on the housing I with a drive, a pallet 4 is fixed, a set is arranged one above the other sieves (C) 5, a device for feeding material to C 5 in the form of a hopper (B) 6 and a roof 7. . Under B 6, a means is set up to prevent the particle M from slipping through the upper C 5 of a conical shape with perforation 10, the top of which is facing upwards. It is made in the form of section 9 with the central part II. Last made conical shape without perforation. The base diameter d of section 9 is equal to d (l, l-2) h, where h is the distance from the hole in the bottom 8 B 6 to the upper C 5. Under the influence of oscillations M from B 6 through part 11 of section 9 of the upper C 5 moves to perforations 10 and are sequentially sorted on all C 5. In this case, plot 9 contributes to the uniform distribution of M over the upper C 5 and the removal of the last particles M from B 6. I Il. (L 4; O C71 00 with

Description

The invention relates to the sorting of solid materials by size, namely, devices for determining the particle size distribution of large bulk plate and needle materials, for example process chips, by sieve sorting.

The purpose of the invention is to improve the quality of determining the granulometric composition when working with process chips.

The drawing shows the appearance of the device with a local section of the movable part.

The device includes a housing 1 with a movable horizontal platform 2 and a drive oscillation (not shown), for example, circular reciprocating.

On the platform, a set consisting of a pallet 4, a set of sieves 5, one above the other, a device for feeding the material to the sieves in the form of a hopper 6 and a lid 7, is fastened with stitches 3.

The hopper 6 has a conical bottom 8 with a hole and a distance from the hole to the sieve h. The hopper is cylindrical with a diameter equal to the diameter of the sieve.

Under the hopper 6, a means is set up to prevent material particles from passing through a sieve in the form of a section 9 of an upper sieve with a diameter d and located symmetrically with respect to the hole of the hopper, which is made without perforation. The base diameter d of this area is determined by the formula d (l, l-2.0) h, i.e. it must be sufficient so that when the sample is filled into the hopper, the material does not fall on the 10 perforation perforation.

The central part 11 of section 9 of the upper sieve without perforation is made conical, which contributes to a uniform distribution of the material in the sieve and from the last section of the last particles of material from the bunker. Tilt angle p. forming a conical surface was 0

five

0

five

0

five

em 5-10 °. Distance a. from the base of the conical surface to the perforation is equal to the size of the perforation holes b, which contributes to the series of flat material particles during the approach and perforation.

The device works as follows.

On the movable platform 2 of the device, a set of pallet 4, sieve 5 and hopper 6 is collected. perforation.

Include drive vibrations. Under the influence of vibrations, the material from the hopper along the conical part 11 of the section 9 of the upper sieve gradually moves to the perforation 10 of the sieve and is sequentially sorted on all the sieves 5.

After completing the analysis, the kit is disassembled, the remaining material is removed from the sieves 5 and vozveshit.

Claims (1)

Invention Formula A device for determining the granulometric composition of bulk materials, including a body with a set of sieves and pallets arranged one above the other; Vibrator, characterized in that, in order to improve the quality of determining the particle size distribution when working with process chips, the device for feeding material is made with a conical bottom, and the diameter of the base of the means to prevent particle breakthrough is d (l, l-2) h, where h is the distance from the hole in the conical bottom to the sieve.