Method for component content prediction and optimization operation in wet-process metallurgic extraction process

A technology of hydrometallurgy and component content, applied in the direction of electrical program control, comprehensive factory control, instruments, etc., can solve the problems of increased product cost, increased consumption of auxiliary materials, and difficulty in ensuring the first pass rate, etc., to ensure product quality, The effect of optimal control

Inactive Publication Date: 2010-08-25
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the manual assay has a large lag, which can reach several hours; in addition, due to the cost of the assay, the sampling period is long, so it is difficult for these assay values ​​to be directly used for

Method used

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  • Method for component content prediction and optimization operation in wet-process metallurgic extraction process
  • Method for component content prediction and optimization operation in wet-process metallurgic extraction process
  • Method for component content prediction and optimization operation in wet-process metallurgic extraction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144] Implementation on the copper extraction and impurity removal production line.

[0145] There are 5 stages of cascaded extraction tanks for copper extraction on this production line, 2 stages for extraction, 1 stage for washing, 2 stages for stripping, a total of 5 stirring motors, 4 flow meters, 4 pumps, and 4 frequency conversion device, a pH meter, and a thermometer. The extraction process detection system is mainly composed of flow detection, pH value detection and temperature detection.

[0146] PLC controller adopts CPU 315-2DP of Siemens 300 series, with Profibus-DP port to connect distributed IO. Equip the PLC with an Ethernet communication module for the host computer to access PLC data. The PLC controller and Ethernet communication module are placed in the PLC cabinet in the central control room.

[0147] The pH value of the extraction process is detected online through the glass electrode produced by Cole-parmer Company, and the change of the pH value of th...

Embodiment 2

[0181] Implementation on the P204 pre-extraction and impurity removal production line.

[0182] There are 20 cascaded extraction tanks for P204 pre-extraction on this production line, 10 for extraction, 3 for washing, 3 for stripping, 3 for anti-iron, a total of 20 stirring motors, 5 flow meters , 5 pumps, 5 frequency converters, 3 pH meters, and 1 thermometer. The extraction process detection system is mainly composed of flow detection, pH value detection and temperature detection.

[0183]

serial number

Liquid

concentration

Liquid

flow

lotion

flow

The organic phase

flow

raffinate

pH value

temperature

raffinate

concentration

model prediction

concentration

1

4.60

3.0

0.22

2.4

4.64

15.1

0.20

0.21

2

6.35

2.0

0.25

3.0

4.45

12.4

0.22

0.21

3

4.94

2.0

0....

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Abstract

The invention provides a method for component content prediction and optimization operation in a wet-process metallurgic extraction process, which adopts the wet-process metallurgic extraction technology of a multi-stage extraction tank to realize real-time prediction on raffinate component content by hybrid modeling of the wet-process metallurgic extraction process, and provide online optimization operation guidance for the extraction process. The method comprises the steps of data acquisition, auxiliary variation selection, standard processing, hybrid model establishment, hybrid model correction, optimization operation guidance determination and the like. The method can greatly improve the leaching rate so as to ensure that the production is maintained in a best loss state, can reduce consumption of raw materials and energy, and prolongs the running period of equipment.

Description

technical field [0001] The invention belongs to the field of hydrometallurgy, and in particular provides a method for predicting and optimizing the content of extraction components based on a mixed model, that is, providing a method for predicting the concentration of raffinate components in real time and providing guidance for optimal operations. Background technique [0002] Hydrometallurgy technology is a new technology that is gradually mature and urgently needs industrialization. Compared with traditional pyrometallurgy, hydrometallurgy technology has the advantages of high efficiency, cleanness, and suitable for recovery of low-grade complex metal mineral resources. Especially in view of the characteristics of my country's mineral resources, which are rich in lean ore, complex symbiosis, and high impurity content, the industrialization of hydrometallurgical processes is of great significance for improving the comprehensive utilization of mineral resources, reducing soli...

Claims

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Application Information

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IPC IPC(8): G05B19/418C22B3/22G05B13/04
CPCY02P10/20Y02P90/02
Inventor 常玉清王福利尤富强贾润达赵露平董伟威
Owner NORTHEASTERN UNIV
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