SU1512662A1 - Method and apparatus for controlling the process of flotation in pneumatic column machine having elastic body - Google Patents

Abstract

This invention relates to the flotation concentration of minerals and improves the accuracy of control of the flotation process. For this, during the flotation process in the elastic chamber (EC) 1 of the machine, the content of the useful component (PC) installed at the output of the discharge unit 5 by the analyzer 8 of the quality of the chamber product in the tails of the column machine is controlled and inversely proportional to the height of the EC 1 of the machine, and hence the flotation time mineral particles by changing its angle of rotation relative to the vertical axis to reduce the content of PC in the flotation tails. The change in the angle of rotation of the EC 1 is carried out by the node 10, whose operation is controlled by the angle adjuster 9 associated with the output of the analyzer 8. In order to ensure optimal hydroaerodynamics of the process along the height of the EC1 of the machine, the angle of rotation 11 of the EC1 and the regulator 12 connected with the sensor 11 regulate the flow of air supplied to the dispersers (D) 7 of the height of EC 1. Each regulator 12 controls the operation of the air supply actuator 13, which by means of the valve 14 controls the air flow to the corresponding D 7. At the same time, the rotation angle EC 1 is inversely proportional to the PC content in the chamber product, and the air pressure supplied to D 7, inversely proportional to the angle of rotation of the EC 1 machine. 2 sp.f-ly, 1 ill.

Description

The invention relates to a pharsentative enrichment of useful minerals, and more specifically to methods and devices for controlling the flotation process in pneumatic column flotation machines.

The aim of the invention is to improve the accuracy of control of the flotation process.

A method for controlling the flotation process in a pneumatic column machine is as follows.

When carrying out the flotation process in the elastic chamber of the machine, the content of the useful component in the tailings of the column of the machine is controlled and inversely regulate the height of the chamber of the machine, and hence the flotation time of the mineral particles by changing its rotation angle relative to the vertical axis in order to reduce the content of the useful component in the flotation tails. At this m., There is a change in the hydrodynamics of the flotation process along the height of the machine chamber due to a change in the machine configuration and a change in its height. In order to ensure optimal hydrodynamics of the process, the height of the machine chamber determines the change in the angle of rotation of the chamber of the machine and regulates the flow of air supplied to the dispersants along the height of the chamber of the machine, and the air flow is adjusted inversely proportional to the angle of rotation of the machine chamber.

The drawing shows a device that implements the method.

The device includes a chamber 1 of the column machine, made of elastic material, an annular loading device 2 configured to rotate around the vertical axis of the chamber 1 of the machine and located in the upper part of the chamber below the device 3 unloading the foam product, and dispersers 4 installed in the lower part of chamber 1 machine over site 5 unloading chamber product. The lower part of the camera I of the machine is mounted in screw guides 6 with the possibility of rotational-translational mixing. Dispersers 7 are located along the height of the camera 1 of the machine. At the output of the unloading unit 5 of the chamber product, an analyzer 8 of the chamber product quality is installed, the electrical output of which is connected to the input of the controller 9 of the angle of rotation of the chamber 1 of the machine.

The angle of rotation controller 9 controls the operation of the node 10 to change the angle of rotation of the camera 1 of the machine around its axis with which the angle sensor 11 of the camera is electrically connected. The electrical output of the angle sensor 11 of the camera 1 of the machine is connected with the outputs of the air flow regulators 12 installed on each disperser 7 located along the BhicoTe camera 1 of the machine. Each air flow regulator 12 controls the operation of the feed actuator 13

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air in the disperser 7, which by means of a controlled valve 14 regulates the flow of air supplied to each disperser 7.

The device works as follows.

The initial pulp, pretreated with reagents, enters the machine chamber 1 through the loading device 2. The lightly-floated particles are fixed on air bubbles rising from the dispersers 7 located in the upper part of the machine chamber I and are discharged from the machine chamber 1 through the foam unloading device 3 product. Hard-floated particles move along the chamber I of the machine and as they move they are fixed on air bubbles rising from the dispersants 7 and 4. The empty rock is removed from the chamber 1 of the machine through the unloading chamber 5 product.

During the flotation process, the chamber product discharged through the unloading chamber 5 of the chamber product passes through the analyzer 8 of the chamber product quality, which determines the content of the valuable component in the flotation tails. The output signal from the analyzer 8 of the chamber product quality is fed to the input of the controller 9 of the angle of rotation of the camera 1 of the machine, which produces a signal arriving at the input of the node 10 of changing the angle of rotation of the camera 1 of the machine around its axis. When this happens, the height of the machine chamber 1 changes, which leads to a change in the hydrodynamics of the process along the height of the machine chamber 1, and to prevent the elastic deformation of the masking chamber 1 that occurs when it rotates around the vertical axis, the unloading chamber product 5 allows free vertical movement through the screw 6. The angle sensor 11 of the camera 1 of the mask detects this change in the angle of rotation and generates a signal that is fed to the inputs of the air flow regulators 12, set Perform on each disperser 7. Each air flow regulator 12 generates a signal at the input of the corresponding actuator 13 for supplying air to the dispersers 7, which controls the flow of air supplied to the corresponding disperser 7 by means of a valve 14.

Claims (2)

Invention Formula The method of controlling the flotation process in a pneumatic column mask with an elastic body, including changing the height of the machine chamber and controlling the flow of air supplied to dispersers located at its height, characterized in that, to increase the accuracy of control of the flotation process, the content of the valuable component is controlled 1512662 56 In the chamber product, an angle dispersant is controlled, characterized in that, from the rotation of the machine chamber around its axis, after that, the change in the angle by the flotation process is determined the quality of the air supplied to the disperser of the angle of rotation of the chamber of the machine, the datum height of the chamber of the machine, while the angle of rotation of the chamber and the successive rotation of the chamber of the machine are regulated by an inverter regulator the air flow is proportional to the value of the actuators and the number of components in the chamber product, and the pressure dispersants, while the output of the air supplied to the pore dispersers of the quality of the chamber product through the adjustable height of the machine chamber The camera of the machine is proportional to the angle of rotation of the camera connected to the node to change the angle of the camera. The chamber of the machine connected to the 2. A device for controlling the rotation angle processor, the output of which is floatation in a pneumatic column machine, is connected to each flow controller with an elastic body, contains a spirit unit, and each actuator for changing the angle of rotation of the camera is ma bus and control valves by number fan.