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Method for indirectly detecting cyclone blockage

A detection method and cyclone technology, applied in the direction of cyclone devices, instruments, measuring devices, etc., can solve problems such as waste products, unfavorable production indicators, and difficulty in direct detection, so as to reduce labor intensity, improve working environment, and shorten processing time. The effect of time

Active Publication Date: 2013-02-27
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of phenomenon is very unfavorable to production indicators, and may even cause waste products, so it must be discovered and dealt with in time
However, the grit nozzle of the cyclone is generally in a hidden position, which is not easy to be found directly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The critical value Q of the described ore feeding amount is 55% of the normal ore feeding amount, the critical value C of the described ore feeding concentration is 65% of the normal feeding concentration, and the critical value F of the described additional water amount is normal 190% of traffic. When the actual ore feed rate is greater than 55% of the normal ore feed rate, the actual cyclone feed concentration is lower than 65% of the normal feed concentration, and the actual rotary feed pump pool is greater than 190% of the normal flow rate, the three conditions are at the same time Yes, and the duration is more than 10 seconds, it is judged that the cyclone is blocked, and the system sends out an alarm. When one of the above conditions is eliminated, the alarm is released.

Embodiment 2

[0022] The critical value Q of the described ore feeding amount is 60% of the normal ore feeding amount, the critical value C of the described ore feeding concentration is 70% of the normal feeding concentration, and the critical value F of the added water amount is normal 200% of traffic. When the actual ore feed rate is greater than 60% of the normal ore feed rate, the actual cyclone feed concentration is lower than 70% of the normal feed concentration, and the actual rotary feed pump pool is greater than 200% of the normal flow rate, the three conditions are at the same time Yes, and the duration is more than 10 seconds, it is judged that the cyclone is blocked, and the system sends out an alarm. When one of the above conditions is eliminated, the alarm is released.

Embodiment 3

[0024] The critical value Q of the described ore feeding amount is 65% of the normal ore feeding amount, the critical value C of the described ore feeding concentration is 75% of the normal feeding concentration, and the critical value F of the described additional water amount is normal 210% of traffic. When the actual ore feed rate is greater than 65% of the normal ore feed rate, the actual cyclone feed concentration is lower than 75% of the normal feed concentration, and the actual rotary feed pump pool is greater than 210% of the normal flow rate, the three conditions are at the same time Yes, and the duration is more than 10 seconds, it is judged that the cyclone is blocked, and the system sends out an alarm. When one of the above conditions is eliminated, the alarm is released.

[0025] The production practice has proved that the system can detect the clogging phenomenon in the early stage of the cyclone clogging, and find out the alarm, so that the operator can take tim...

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Abstract

The invention relates to the technical field of ore dressing cyclones, in particular to a method for indirectly detecting cyclone blockage. According to a working principle of a cyclone, when an operating state of the cyclone is changed, operating states of last and next process equipment are inevitably influenced; an ore dressing automation instrument and a programmable logic controller (PLC) automatic control system which are widely used at present are utilized, and comprehensive judgment is performed according to three data of the ore supply quantity of a ball mill, the water supply quantity of a cyclone water feed pump and the cyclone ore supply concentration; and when the three data reach or exceed a preset limit, that the cyclone is blocked can be estimated, and the system determines the cyclone blockage and sends an alarm. Production practice proves that: by the method, the blockage phenomenon can be discovered at an early stage of cyclone blockage, and the alarm is sent; therefore, an operator can timely take adjustment measures, the processing time of the cyclone blockage is greatly shortened, a production index is stabilized, the labor intensity is lightened, and an operating environment is improved.

Description

technical field [0001] The invention relates to the technical field of ore dressing cyclones, in particular to an indirect detection method for cyclone clogging. Background technique [0002] Cyclone is a general classification equipment for ore dressing production. It is generally used for the classification operation of one-stage grinding and two-stage grinding. It has the characteristics of high classification efficiency, less land occupation, and convenient maintenance. It is widely used in mineral processing plants. However, a major disadvantage of the cyclone is that the work is not stable enough, especially in the grinding stage where the pulp concentration is relatively high. When the working conditions fluctuate, the cyclone will be blocked, commonly known as the phenomenon of "stick pulling". At this time, the ore slurry at the grit outlet of the cyclone is discharged in a straight line with a high concentration, instead of the umbrella discharge under normal worki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/00B04C11/00
Inventor 董文俊孙大华陈小艳徐春燕黄福彪
Owner ANSTEEL GRP MINING CO LTD
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