SU1411062A1 - Vibrating separator - Google Patents

Abstract

The invention relates to a device for the separation of small materials (M) by size and m. used in mining, chemical, construction, industrial and powder metallurgy. The purpose of the invention is to improve the quality of separation by ensuring the loading of the rib of the vibrosurface (VP). Run in the cross-section in the form of a graped angle covered with the top upward angle is the upper main one and additional EC 1 are located one above the other with transverse shear of the ridges. The magnitude of the shift of the VC 1 with respect to the hitherto ones is equal to half the pyrin of the base of the dihedral angle. Above the top edge of the upper VTs 1, above the edge, a feeder 6 is installed above the edge, below the lower and upper ends of the VTs 1, receivers are small 7 and large 8 fractions. On the faces of each VC 1, except for the bottom, under the feeder 6, longitudinal bypass shells 3 are made, above which a large fraction of shelle 4 is made to divert the leading section 5. The original M moves upwards through VP 1, divided into fractions. Excess M in the top. VC 1 through slots 3 is dropped to the lower VC 1, providing self-regulation of the separator according to the initial gas flow. 1 hp f-ly. 3 il. w (L 4 IND

Description

The invention relates to devices for the separation of small materials by size, which can be used in the mining, chemical, and construction industries in powder metallurgy.

The purpose of the invention is to improve the quality of separation by ensuring optimal loading of the edge of the vibro-surface.

FIG. 1 shows a diagram of a vibration separator, side view; in fig. 2 - view. in fig. one; in fig. 3 is a section BB in FIG. one.

The vibrating ion separator consists of several vibro-surfaces 1 arranged one above the other and having a cross-section in the form of a dihedral angle. Vibrosurfaces 1 are interconnected by means of shells and fixed on vibrator 2. At the same time, the depressions of the above-installed vibrosurfaces 1 are above the ridges below, i.e. shifted relative to each other in transverse direction half the width of the base of the dihedral angle. In each vibro-surface, except for the lowest one, oi of the lower end along the ridge, the longitudinal bypass slots 3 are made along the ridge, and higher along the movement of the material of the bypass slots 3 there are made large fractional slits 4, under which the guides 5 are installed. the ridge of the upper main vibro-surface is above the bypass slots 3. Receivers of the small 7 and coarse 8 fractions (receivers of separation products) are installed under the lower and upper ends of the vibro-surfaces. Vibration} 1 separator works the following way.

Vibrator 2 vibration surfaces 1 oscillates in a vertical plane. By the feeder 6, the source material is supplied to the zone of the overflow slots 3 of the upper main vibrosurface 1. A part of the material along the edges and crests due to the adhesive interaction with the vibrosurface 1 and the vibration, divided by size, moves up and the small fraction is output to the receiver and large f) cancer, rolling down the depressions, through the diverting slots 4 along the guides 5 is led to the receiver 8.

Since the additional vibro-surfaces 1 are located below the main and one above the other with an offset equal to a half-step between the slots 1 (T / 2), and the by-pass 3 passes strictly along the valleys, the entire excess of the source material in the upper vibrating surfaces on the crests of the lower and moving up. In this case, with each vibro-supersize

The material is dropped down and strictly defined doses of powder are captured, captured by the force of adhesion by ridges in the feeding zone. Thus, the division by

the vibrating surfaces are automatically self-adjusting according to the original feed. The quality of separation and its productivity are practically independent of the parameters of the initial product, its fractional composition, humidity, etc. There is no need for a complex system of adjustment and agreement on the initial power supply capacity of the feeder 6 and the separator. The separator has a capacity of 10–20% higher in the original feed than the known one, while obtaining ultrapure abrasive powders with grain size, for example, MG4. Making the discharge slots 4 with guides 5 above the bypass slots allows the separated large product to be withdrawn without shifting from

the original one. In practice, the slit length is half the rise rate of the fines fraction. For example, when cm / s, the length of the slit is 5 cm. In this case, the material is not fed to the full length of the slit, but only to its part, near

end splitter. The maximum moisture content should not exceed 0.3-0.5 ° / o, but the powder that is heated to 90-110 ° C is best separated.

The particle size distribution of the source

The powder contains fine fraction from 50 to 100%.

Claims (2)

1. Vibrating separator, which includes an inclined vibro-surface with a cross-section in the form of a dihedral angle, with its top facing up, a feeder mounted above the lower edge of the vibro-surfaces above its edge, receivers of products 0 0 separation, characterized in that improving the quality of separation by ensuring optimal loading of the rib of the vibration surface, the separator is equipped with additional vibration surfaces with cross sections in the form of a dihedral angle, 5 installed under the main and one under the other with a transverse shift of the ridges relative to the upper half of the dihedral angle , moreover, in the edges of each vibrating surface, except for the lower one, longitudinal bypass slots are made under the feeder. 2. A separator according to claim 1, characterized in that in each face of the vibration surfaces at the base of their faces, above the overflow slots, discharge slots with guides are provided. : -: v .: r -7rrr :: v: / ...., . - ..x Tli, j..lI - N-ji-ll. "j.I     -.: .Г ;. . : ..:.; -. .-i. ii i ;. --N- ji-ll. «J. -. FIG. 2 FC 3