SU1563759A1 - Arrangement for classifying fine-disperse materials - Google Patents

Abstract

The invention relates to mineral processing. The purpose of the invention is to increase the efficiency of classification. In the upper part of the cylindrical body (CC) 1 there is a tangential nozzle (P) 2 for supplying the original pulp and a sieve (C) 3 and a device for unloading the drain are located. Consisting of an inner cup 4, a drain funnel 5, a collecting chute 6 for the drain product and a drain pipe 7. In the lower part of the CCP 1, a fixture 8 is installed for unloading sands. Under C 3, a mixer 11 connected to the drive 9 is installed with a scraper 12 by means of a shaft 10, wherein C 3 is made dome-shaped, and the forming C 3 and the upper edge of the scraper 12 of the agitator are shaped in the shape of an Anezi curl. The pulp through P 2 is supplied to CC 1, while, in addition to the slow rotation of the pulp, a vertical flow is formed, the formation of which contributes to the glass 4. Large grains are unloaded through the device 8. Fine particles pass through C 3, roll into the groove 6, from where they are removed through C 7. Domed forms of C 3 and its generators contribute to the rolling of the grains passing through C 3 into the chute 6. The 3 particles adhering to the surface are removed by scrapers 12. The coagulated particles roll down the wall of the drain funnel 5 to the device 8. 3 sludge.

Description

12. At the same time, C 3 is dome-shaped, and C 3 and the upper edge of the paddle 12 of the agitator are formed in the shape of the curvature of the Anezi curl, Pulp is fed through P 2 into CC 1, and in addition to the slow rotation of the pulp contributes to cup 4. Large grains are discharged through fixture 8. Tone

Kie particles pass through C 3, roll into chute 6, from where they are removed through P 7. Forms of C 3 domed and forming it contribute to rolling the grains passing through C 3 into chute 6. Removal of adhering C 3 particles on the surface is done by scrapers 12. The coagulated particles roll down the wall of the funnel 5 to the fixture 8'3 Il G

The invention relates to a technique used in the hydraulic classification of fine particles, and can be used in the coal, metallurgical and building industries.

The purpose of the invention is to increase the efficiency of classification.

FIG. 1 and 2 shows the proposed device; in fig. 3 - curves: giberbolichesky and curl Anezi.

The device comprises a cylindrical body 1 with a tangential pipe 2 installed in its upper part. For feeding the initial pulp. In the upper part of the cylindrical body 1 there is a sieve 3 and a device for unloading the drain. The discharging device includes an inner cup 4, a drain funnel 5, a collecting chute 6 for the discharge product and a drain pipe 7. A fixture 8 for unloading sands is installed in the lower part of the cylindrical body 1. Sieve 3 is dome-shaped. A mixer 11 connected to the drive 9 is installed under the screen with the shaft 10 with the scrapers 12. The forming screen 3 and the upper edge of the mixer 12 are made according to the curve shapes of the Anezi curl.

The device works as follows.

Pulp 1 containing fine particles is fed tangentially into the cylindrical body 1 through pipe 2, and in addition to the slow rotation of the pulp, a vertical flow is formed.

The coarse grains are lowered and unloaded through the sands unloading device 8. The inner cup 4 contributes to the formation of a vertical flow.

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The fine particles pass through the sieve 3 and roll into the chute 6, from where they are removed through the drain nipple 7. The shape of the dome-shaped sieve 3 with the Anezi forming in the shape of the curl contributes to the rolling of the 3 grains passing through the sieve into the chute 6.

Due to the fact that the fine grains may partially coagulate and accumulate on the bottom surface of the sieve 3, the sieve cells 3 are clogged.

The removal of particles 3 adhering to the surface of the sieve is carried out by scrapers 12 mounted on a stirrer 11, which is driven in rotation by the drive 9 through the shaft 10. The shape of the scrapers 12 is similar to forming a domed sieve, i.e. its shape is the curve of the Agnes curl.

The coagulated particles removed by scrapers 12 are rolled around the wall of the drain funnel 5 to the device for unloading sands 8.

Claims (1)

Invention Formula A device for classifying fine materials including a cylindrical body with a tangential nozzle installed in its upper part for feeding the original pulp, a sieve located in the upper part of the cylindrical body and a device for unloading drainage and a sand unloading device installed in the lower part of the cylindrical body, characterized in that , in order to improve the classification efficiency, it is equipped with an agitator with scrapers connected to the drive and installed under the sieve, and the sieve formed dome, and forming a sieve and the upper edge of the scraper stirrer is shaped curve curl Agnesi.  Lokon Agnes Editor L.Pcholinsk Compiled by V.Mnt Nin Tehred M. Didyk Proofreader ;. Revska Order 1117 Circulation 471 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., D. / 5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 2 Hyperbola Vx Subscription