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A method for controlling the amount of froth scraping out of concentrate in a flotation tank

A control method and flotation cell technology, applied in flotation, solid separation, etc., to achieve the effects of reducing concentrate production rate, saving manpower, and simple transformation

Active Publication Date: 2015-09-16
大鼎科技发展(海南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of controlling the amount of foam scraped out of the flotation cell concentrate, the present invention provides a simple, durable, and easy-to-retrofit control method for the amount of foam scraped out of the flotation cell concentrate

Method used

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  • A method for controlling the amount of froth scraping out of concentrate in a flotation tank

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] Example 1: The liquid level detection mechanism is a floating ball, the signal conversion mechanism is a travel switch, and the floating ball and the travel switch are connected by flexible wires. The liquid level of the flotation tank changes the position of the float, and the change of the position of the float drives the travel switch to send a corresponding switch signal to the inverter to change the output frequency of the inverter, and finally changes the speed of the scraper motor to change the scraping of the concentrate foam When the liquid level is high, the frequency is low, the speed of the scraper motor is slow, when the liquid level is low, the frequency is high, the speed of the scraper motor is fast, and the amount of concentrate foam scraped out can always maintain a stable state.

example 2

[0013] Example 2: The liquid level detection mechanism is a stainless steel probe, and the signal conversion mechanism is a liquid level relay. The probe detects the liquid level of the flotation tank to change the output state of the liquid level relay, and the liquid level relay outputs signals to the frequency converter to change the output of the frequency converter. Frequency, finally changing the speed of the scraper motor to change the amount of scraped concentrate foam, when the liquid level is high, the frequency is low, the speed of the scraper motor is slow, when the liquid level is low, the frequency is high, the speed of the scraper motor is fast, the scraping of the concentrate foam The output has been able to maintain a stable state.

example 3

[0014] Example 3: The liquid level detection mechanism is an ultrasonic liquid level gauge. The ultrasonic liquid level gauge detects the liquid level of the flotation tank by emitting ultrasonic waves. The signal conversion mechanism in the ultrasonic liquid level gauge outputs control signals to the inverter according to the liquid level of the flotation tank. Change the output frequency of the inverter, and finally change the speed of the scraper motor to change the amount of foam scraped out. When the liquid level is high, the frequency is low, and the speed of the scraper motor is slow. When the liquid level is low, the frequency is high, and the speed of the scraper motor is fast. , the amount of scraped concentrate foam can always maintain a stable state.

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Abstract

The invention discloses a method for controlling a concentrate foam scrapping amount in a flotation tank, wherein the liquid level of the flotation tank is adjacently provided with a detection mechanism, corresponding liquid high and low signals are correspondingly output according to the height of the liquid level of the flotation tank, the signals are converted through a signal conversion mechanism and then sent to a frequency changer so as to change the frequency of a scraper plate motor, and finally the scrapper plate scraps concentrate foam slowly when the liquid level is high, and scraps the concentrate foam quickly when the liquid level is low, so that the flotation tank keeps the stable concentrate foam scrapping amount.

Description

Technical field [0001] The invention relates to a method for controlling the amount of foam scraped out of a flotation cell concentrate, in particular to a method which can accurately control the amount of foam scraped out of a flotation cell concentrate in real time. Background technique [0002] At present, the control of the amount of froth scraped out of the concentrate in the flotation tank is generally controlled indirectly by controlling the level of the liquid. The opening of the valve is used to control the level of the liquid level. Since there is a delay between the change of the valve and the change of the liquid level, and the amount of flotation pulp will inevitably change, the liquid level of the flotation tank is always Instability, the instability of the liquid level of the flotation tank naturally leads to the instability of the amount of foam scraped. In order to solve the problem of unstable foam scraping volume of concentrate in a flotation tank, the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/02
Inventor 刘广生
Owner 大鼎科技发展(海南)有限公司