SU1090461A1 - Apparatus for classification of loose materials - Google Patents

Abstract

CLASSIFICATION OF BULK / MATERIALS, including a casing, separating chamber of variable cross section, air supply and discharge pipes , the apparatus is provided with vertical partitions, a stepped guide mounted above the pouring device, additional nozzles along air flow, installed under the pouring device, and the pouring device made in the form of a perforated plate with holes for the withdrawal of individual fractions, divided by vertical partitions into sections and installed with the possibility of moving. (L L CiK / iOff S o 4 O5

Description

This invention relates to a technique for separating bulk materials under the action of gravitational forces and can be used in the chemical and other industries. A device is known, including a housing, a separation chamber, and pipes for removing material and air. The disadvantages of this device are the division of the source material into only two fractions, separation in a horizontal flow, and the absence of airflow effects on the fractions to be taken, which reduces the quality of classification. The closest in technical essence and the achieved result to the proposed device is a device including a housing, a dividing chamber of variable cross section, nozzles for supplying and discharging the material, pouring inclined device, the source material supply nozzle installed opposite the pouring device 2. quality separation. The purpose of the invention is to improve the quality classification by cleaning the separation product. This goal is achieved by the fact that the apparatus for classifying bulk materials, including a housing, a separating chamber of variable cross section, pipes for air supply and material removal. the filling device, the source material supply pipe, installed opposite the filling device, is provided with vertical partitions, a stepped guide, mounted above the non-filling device,. .. „..., ... .. I eat with additional air supply nozzles installed under the pouring device, and the transfer device is made in the form of a perforated plate with holes for outputting individual fractions, separated by vertical

partitions on the section and installed with the possibility of movement.

FIG. 1 shows the apparatus, a general view; in fig. 2 - apparatus, top view of a perforated bottom; in fig. 3 is a flow chart of the material.

The apparatus for classifying bulk materials consists of a housing 1, a separation chamber consisting of a bottom

which directs them to the appropriate sections where they are unloaded.

The application of the proposed apparatus for the classification of bulk materials allows an increase in the number of selected fractions, 45 to improve the quality of the finished products by additional purification, and to regulate the particle size distribution of individual fractions. parts 2 and top 3 with a perforated pouring device 4 divided by vertical partitions 5 into sections 6. In each section, directly at the vertical partition there is a slot 7 for discharging the finished fractions. Each section is connected to a discharge pipe of individual fractions 8 and a chamber 9 for supplying additional air. Gates 10 are installed to adjust the flow rate of the additional air. A special step 4 is installed on the top of the outlet, and 11. A branch pipe 12 connected to the cyclone is installed in the upper part of the dust unloading device. The feed material is supplied through the nozzle 13 installed opposite the tool 4. In the lower part of the chamber 2, an air supply nozzle 14 is installed, the flow of which is controlled by the gate 15. The coarse fractions are unloaded through the nozzle 16. The apparatus for classifying bulk materials works as follows. The original polydisperse material is supplied through the nozzle 13. Air is supplied through the nozzle 14 at a certain rate. As a result of the interaction of the jet of material flowing out of the supply nozzle with air, it is divided into two parts. Large particles, the passage of the chamber 2, are discharged through the pipe 16. Small particles under the influence of a jet of air are distributed by size and collected in sections 6, where there is a purge through the chambers 9. The individual fractions are unloaded through the pipes 8 into which they enter 7. Vertical partitions 5 eliminate the mixing of individual fractions. Particles removed from each section as a result of interaction with air m, below, through additional chambers 9, are in contact with a stepped guide 11,

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II

Claims (1)

APPARATUS FOR CLASSIFICATION OF BULK MATERIALS, including a housing, a separation chamber of variable cross-section, air supply and discharge pipes, an inclined inclined device, a source material supply pipe installed opposite the bulk device, characterized in that, in order to improve the quality of classification by cleaning the separation products, the device is equipped with vertical partitions, a stepped rail mounted above the overflow device, additional supply nozzles in zduha mounted under and mixing device, and mixing device is designed as a perforated plate with openings for the output of individual fractions divided by vertical partitions into sections and mounted with the possibility of re Mechain. particles ₁