SU1438842A1 - Arrangement for stabilizing the level of pulp in flotation machine chamber - Google Patents

Abstract

The invention relates to the enrichment of minerals and m. used in the coal, metallurgical, chemical and other areas of promet. The purpose of the invention is to increase the efficiency of the flotation machine by automatically stabilizing the level of pulp (P) when the load on the flotation machine changes. The overflow system (SP) 1 device consists of two fixed with each other

Description

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relative to the vertical pipes 2 and 3, at the upper end, the pipe 2 has a removable flange 4 with a fitting 5. On the latter there is an air-tight tube (АТ) b in the form of a semi-elligger installed Other side of the AT 6 installed; from the chamber 7 it is floated in the plane of the given level P with the power of its vertical movement and fixation Tails,, potash-1, and from chamber 7 flow along pipe 2 upwards and merge along Pipe 3 if-7

the level in the chamber / above the cutoff end AT bJ then the access of air to the joint venture 1 is blocked, the pressure in the flow P is lower than atmospheric. Since the flow rate in the joint venture 1 .- is more than the incoming load on the flotation machine, the level P at the gate and, opening a slice of the end of AT 6, depressurizes joint venture 1. The flow of flow P will become AT 60 gear cutter. Discrete device operation, 2 or about

The invention relates to the field of mineral processing, in particular, to 1 Float-Shony machines, designed to regulate and stabilize the level of pulp in machinery chambers and can be used in the coal metallurgical chemical and other industries

The aim of the invention is to increase the efficiency of the flotaplating machine behind the automatic C7 (and to reduce the level of pulp when changing the load on the fleet of ohm fir.

Fig. 1 shows flotation tanks. with the device, dine view; FIG. 2 is a section A-A in FIG. 1,

A device for the stabilization of the pulp level of the sodermmt-1 transfer-bag system, which consists of two vertically mounted pipes 2 and 3 of different diameters, installed coaxially with a gap relative to each other, and the replenishment hall between; The pipe 2 in the upper part has a detachable flange 4 with a fitting 5. A fitting is fixed on the aerash tube 6, set as a half-ellipse, the second end of which is installed in the chamber / flotome); This end of the aspa- coping tube 6, which is located at a given level of pulp, is attached to the chamber in a manner known as (clamp, ho).

The device works as follows

When a flotomachine operates, the flotation tails are directed from chamber 7

pipe 2 up and merge through pipe 3.

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If the level in chamber 7 is higher than the cut-off end of the aeration tube 6, air access to the overflow system y 1 is also blocked in the pulp flow moving in

system I overflow pressure all the way pressure flow is even lower than atmospheric. It is known 5- Vavychina consumption systems) 1 overflow is proportional to the square Kopiiio of

current head H, i.e. the vertical distance between the pulp horizon in chamber 7 and the lower-P end of pipe 3. Since the flow rate in system 1 of re-circulation is obviously large,

the load on the machine, then the level will drop and, opening a slice of the end of the aeration tube 65, depressurizes the overflow system 1. The vacuum is broken and the pressure is balanced with atmospheric.

Thus, the further movement of the flow starts from the section j where the nozzle is installed

connected to the other end of the aeration tube b, becomes non-nanoric. Mo Consumption of the waste waste decreases and the level in the chamber 7 rises, closing the section of the end of the aeration tube 6, access of the outlet is blocked 5 the overflow system 1 starts to work. The operation of this device is discrete. The frequency of switching sistemzg. overflow depends on the amount of waste flotation (tailings).

When setting up the work flotation machines,

In particular, adjusting the level of the pulp in each particular case, one of the ends of the aeration tube 6 has the ability to make a vertical movement up and down with a subsequent fixation of its position.

Due to the large difference between the volume of flotation waste and the capacity of the overflow system, the level in the chamber of columns is 5-10 mm. Such a fluctuation of the pulp level in the chamber does not significantly change the course of the flotation process and the removal of the frothy product from the chamber. The constancy of the level of pulp in the chamber of the machine increases the efficiency of the flotation process.

With the stabilization level of the pulp in the chamber of the flotation machine, the forming flotation complexes continuously form the foam layer in the chamber, the removal of which from the machine also occurs continuously. The required quality of the froth product to be removed is maintained by a certain amount of foam layer. When the amplitude of pulp level fluctuations in the machine chamber is more than 10 mm, the thickness of the pennuss changes accordingly.

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lay This leads to a deterioration in the quality of the flotation concentrate if the specified value of the pulp level in the machine chamber is exceeded or to a decrease in its output at the ssh-s same and the characteristic under consideration.

Claims (1)

The formula is invented: A device for stabilizing the pulp level in the chamber of a flotation machine, including a perapive system, consisting of two coaxially vertical 5 pipes installed with a gap relative to each other and a flange with a fitting placed on the upper end of the outer pipe, characterized in that, in order to increase the efficiency of the flotation multiplex tire, due to automatic stabilization of the slurry level when the load on the machine, device changes equipped with an aeration tube discharged in the form of a semi-ellipse fixed upwards with a convexity, one end of which is attached to the nozzle and the other is placed in the chamber of the flotation machine in the plane specified 0 level of pulp with the possibility of its vertical displacement 1 and fixation. Fig2