SU1528579A2 - Vibratory separator - Google Patents

Abstract

The invention relates to the separation of bulk materials by size in powder metallurgy, abrasive and chemical industries. The goal is to increase the production and specific load by increasing the length of the fine fraction. The separator consists of a conical separator 1 with an annular collar 2 in which an opening 3 is made. The lower part of the separator 1 is made in the form of an annular groove 4 formed by the surface of the separator 1 and forming the peripheral part of the conical surface 5. The angle of inclination α ₁ forming the apex of the separator 1 is less ₂ the angle α of inclination of the generatrix of the peripheral portion of the chute 4, above which is disposed a feed device - a branch pipe 16. By the peripheral part of the annular trough is fixed shoulder 7 with the discharge hole 8. The separator of bp schenie driven vibrator 15. After pipe 16 in the conical surface 5 of material is fed. The vertical component of the screw oscillations of the separator 1 provides for the movement of the smallest fraction obliquely upwards along its surface. Grains of coarse and intermediate fractions roll into chute 4. Due to the horizontal component, oscillations and intermediate fractions will move along shoulders 2 and 7 to form a vibratory boiling layer to discharge openings 3 and 8, and coarse fraction to discharge opening 6. Shallow the fraction falls into collection 11, large into collection 12, and intermediate into collection 13. 2 Il.

Description

one

(61) 1282920

(21) 4383228 / 29-03

(22) 02.25.88

(46) 12/15/89. Bul No. 46

(71) Dnipropetrovsk Mining Institute. Artyom

(72) F. A. Mechkan, M. Ya. Shapovalov, A. A. Zakharov and A. A. Sula

(53) 622.771.2 (088.8)

(56) USSR Author's Certificate No. 1282920, cl. B 07 B 13/00, 1985

(54) VIBRATION SEPARATOR

(57) The invention relates to the separation of bulk materials by size in powder metallurgy, abrasive and chemical industries. The goal is to increase the production and specific load by increasing the length of the fine fraction. The separator consists of a conical separator 1 with an annular collar 2, in which is made from 1 inertia 3. The lower part of the separator 1 is made in the form of an annular groove 4 formed by the surface separator 1 and forming the peripheral part of the conical surface 5.

The inclination angle i of the generator vertical section of the separator 1 is made up of the angle of inclination of the peripheral part of the chute 4, above which the loading device is located - a nipple 16. An annular collar 7 is attached to the peripheral part of the chute with a discharge hole 8. The separator is rotated by a vibrator 15 Through pipe 16, on a conical turn.) Jus 5 feeds the material. The vertical component of the helical co., - bani separator 1 provides P1 RS g. Obliquely upward along the erci surface of the smallest fraction. Grains of coarse and intermediate fractions roll into the chute 4. Due to the horizontal component, oscillations and intermediate fractions will move along shoulders 2 and 7 to form a vibratory boiling layer to discharge openings 3 and 8, and coarse fraction to discharge openings 6. The small fraction falls into collection 11, is large into collection 12, and the intermediate fraction into collection 13. 2 Il.

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I: i) b) (the field is related to the field of working out bulk materials by crucibility, superior incineration for the extraction of tomodisperse fractions in 10th metallurgy and abrasive industry) 11 and the chemical industry.

The aim of the invention is to increase productivity and specific load by increasing the length of the fine fraction.

FIG. 1 shows a section of a vibroseparator; in fig. 2 is a diagram of the displacement of various fractions of a material along a vibrating working surface, top view.

Vibrating separator consists of a separator 1 in the form of a truncated cone and an annular collar 2, in the side surface of which a discharge opening 3 is made.

The lower part of the separator 1 is made in the form of an annular groove 4 formed by the surface of the separator 1 and the peripheral part of the conical surface 5. At the point of contact between these surfaces, a discharge opening 6 is made. The peripheral part of the groove is attached to an annular shoulder 7 with a discharge opening 8. The shoulder 7, a receiver of 9 small fractions with discharge () is supplied. 10. For the collection of intermediate and large products, collections II of 13 finished products are installed. The separator is mounted on the foundation on the springs 14 and is driven into oscillatory motion by the vibrator 15. The source material is loaded through the nozzle 16, which is mounted above the peripheral part of the tapered rod 5.

FIG. 2 shows the trajectories of grains of different fractions. The fine grains are mixed along the trajectory 17, the intermediate grains along the trajectory 19, the coarse grains - the trajectory 18. The angle of inclination of the separator forming to the horizon oti is less than the angle of the forming peripheral part of the annular groove ccL.

(.parator works as follows.

Using the vibrator 15, the separator is driven into a helical oscillatory motion. The material is fed through a loading nozzle 16 onto a conical surface 5. The angle of inclination of which forms to the horizontal (M1 steel a.2 is close to the limit for sa

0

0 o

five

with

five

my fines fraction. The vertical component of the usable screw oscillations of the separator I ensures that the smallest fraction moves obliquely upwards along its surface.

Grains of coarse and intermediate fractions will roll into an annular groove 4. At the same time, due to the vertical component of the oscillations, the fraction of intermediate size with a part of entrained large particles will move obliquely upwards along separator 1, which has an angle of inclination to the horizon close to the limit for the fraction of intermediate size , In this i all1 be b () /.

Due to the horizontal component, the small fractions and intermediate fractions will move along the annular shoulders 2 and 7 to form the vibratory bilge of the layer to the discharge openings 3 and 8, and the large fraction to the discharge opening 6. The small fraction enters the collection And, the large - in collection 12, and intermediate in collection 13.

It is advisable to use this separator design in finishing the powders of artificial diamonds of the p brands. 649/05: АС 60/20, АС 63/50, АСМ 40/28, as well as at the separation of the powders of KPS-3 silicon, PTOM titanium, aluminum surfactant 2-2, used during the thermal synthesis of titanium nitride.

When more than 50% of the fines are contained in the feed, an increase in productivity and a specific load without deterioration of the separation quality occurs due to an increase in the length (zone) of separation to release the fines fraction.

On a vibroseparator with a collar diameter of 2 and 7 equal to 0.2 and 0.56 m, the length of the separation zone is increased from 0.6 to 1.8 m with the same dimensions of the apparatus.

Claims (1)

Invention Formula Vibrating separator according to ed. St. No. 1282920, characterized in that, in order to increase productivity due to the yBej length of the fines separation zone, the angle of inclination of the top of the separator to the horizon is less than the angle of the peripheral part of the ring groove, while the boot device is located above the peripheral part of the ring groove. 17 2