SU1318294A1 - Hydraulic classifier - Google Patents

Abstract

The invention relates to a technique for classifying particles by size and allows for improved classification efficiency by providing a constant head. The classifier includes a classification chamber (QC) 1, which is installed with the possibility of vertical movement, with a nozzle (P) 2 for supplying a separating medium and P 3 and 4 for discharging classification products. Outside QC 1, a conic funnel 5 is placed and connected to it by means of flexible P 6 through P 2 and 7. Suspension is fed into conical funnel 5, where large particles settle to the bottom and are removed along P 3. Drain flows over the edges of the funnel 5, flows into P7 on P6i2 enters KK 1. The suspension passes through the annular space formed by the wall of the conical part KK 1 and the walls of the funnel-shaped trap 1I built into this KK 1. Next, the suspension flow enters the cylindrical expanding part of QC 1, the flow rate drops, and particles of a certain size are deposited in the trap 11, which are discharged through P 4, the remaining portion of the suspension rises and is removed from KK 1 through P 3. 1 sludge. Naladna S ldavoa

Description

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The invention relates to a technique for classifying particles by grain steepness and can be used in the enrichment of mineral raw materials and in other branches of the national economy, for example, in construction.

The aim of the invention is to improve the efficiency of the classification by providing a constant head.

The drawing shows the hydraulic classifier, a general view.

The classifier contains a classification chamber 1 with a nozzle 2 for supplying a separating medium and nozzles 3 and 4 for discharging classification products, a conical funnel 5 placed outside the classification chamber 1 and connected to it by means of a flexible nozzle 6 through nozzles 2 and 7.

At the nozzle 2, flush valves 8 are installed. In the conical funnel 5 there is a control valve 9 mounted on the nozzle 10.

Inside the chamber. 1 classification posted funnel-shaped trap 1I. The housing of the classification chamber 1 is fixed on the guides 12 and has the possibility of vertical movement with the help of the actuator 13. The guides 12 are mounted on the frame 14. In the upper part of the classification chamber 1, a flow meter 15 is installed on the outlet nozzle 3.

Hydraulic classifier works as follows.

The suspension is fed into the conical funnel 5, where large particles settle to the bottom and are removed through the nozzle 3. The drain is poured through the edges of the funnel 5, enters the nozzle 7 and the flexible nozzle 6 and the nozzle 2 by gravity enters the classification chamber 1. When this suspension passes through the annular space formed by the wall of the conical part

Editor I. Nikolaichuk

Compiled by E. Kiseleva

Tehred L. Oliynyk Proof-reader S. Cherni

Order 2452/6 Circulation 511 Subscription

VNISHI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

42

chambers I classifiers and walls of a 1I funnel trap built into this chamber. Next, the slurry stream enters the cylindrical expansion part of the classification chamber 1, the flow rate falls and particles of a certain size fall into the funnel-shaped trap 11, which are discharged through the nozzle 4.

The remaining part of the suspension rises and is removed from the chamber 1 of the classification according to the nozzle 3.

The flow rate of the suspension is controlled by a flow meter I5, which sends signals

hydraulic drive 13. The size of the boundary grain separation depends on the amount of flow of the suspension coming through the flow meter 15. If it is necessary to maintain a certain

the separation separation grain, with an increase in the suspension flow, the classification chamber I with the help of a hydraulic actuator 13 moves upward along the guides 12 until the flow reaches a predetermined value, and, conversely, in the case of a decrease in consumption, the classification chamber 1 drops.

Claims: Hydraulic Classifier, including a vertically mounted classification chamber with inlets

separating medium and removal of classification products, a funnel-shaped trap placed in the classification chamber, a conical funnel communicated with the classification chamber, and the fact that, in order to increase the efficiency of the classification by ensuring a constant head, the conical funnel is placed outside camera classification and connected

with her through the flexible pipe.

Claims (1)

The claims are a hydraulic classifier, including a vertically movable classification chamber with nozzles for supplying a separating medium and withdrawing classification products, a funnel-shaped trap placed in the classification chamber, a conical funnel in communication with the classification chamber, characterized in that, in order to increase the efficiency of the classification, by ensuring constancy of pressure, the conical funnel is placed outside the classification chamber and connected to it by means of a flexible patrol ka.