SU660712A1 - Flotation process control method - Google Patents

Flotation process control method

Info

Publication number
SU660712A1
SU660712A1 SU762345596A SU2345596A SU660712A1 SU 660712 A1 SU660712 A1 SU 660712A1 SU 762345596 A SU762345596 A SU 762345596A SU 2345596 A SU2345596 A SU 2345596A SU 660712 A1 SU660712 A1 SU 660712A1
Authority
SU
USSR - Soviet Union
Prior art keywords
flotation
consumption
copper
control method
process control
Prior art date
Application number
SU762345596A
Other languages
Russian (ru)
Inventor
Светлана Викторовна Вейсман
Роальд Георгиевич Ерчиковский
Елена Набиевна Жаксыбаева
Юрий Геннадиевич Куляшов
Раиса Ивановна Нестерерова
Николай Васильевич Савельев
Original Assignee
Предприятие П/Я Г-4437
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Г-4437 filed Critical Предприятие П/Я Г-4437
Priority to SU762345596A priority Critical patent/SU660712A1/en
Application granted granted Critical
Publication of SU660712A1 publication Critical patent/SU660712A1/en

Links

Description

This invention relates to the enrichment of minerals, namely flotation enrichment. The known method of controlling the flotation of minerals, which uses the control of reagent modes to stabilize the quality of the output products. The disadvantage of this method is that the control of flotation is considered in a narrow sense, i.e. only part of the controlled and controlled parameters is taken into account cumulative effects of these parameters. There is also known a method of controlling the flotation process with cleaning through qualitative and quantitative indicators of flotation products by changing the costs of reagents 2. The known method does not take into account the change in the natural flotation ability of the minerals to be separated, which can vary widely and cannot be measured instrumentally. Thus, with the same phase composition of ore, the flotation activity of minerals varies widely due to changes in its crystal lattice, for example, the activity of sphalerite changes due to isomorphic replacement of zinc by heavy metal ions. The disadvantage of this method is the low quality of the concentrates. The aim of the invention is to understand the quality of the concentrates. The goal is achieved by those. that periodically change the output of the frothy product of the last clearing, determine the current ratio of floatable and depressed products, determine the amplitude: p1tuda output based on the ratio found with the correction for the quality of the output products, and the period of output changes - according to the required quality of the output products; the consumption of the reagent-depressor and reduce the consumption of the reagent-gatherer while reducing the period of change, while increasing the latter, the consumption of the reagent-depressant reduces and increases the consumption of the reagent-with biratel The invention is illustrated in the drawings, where in FIG. 1 is a block diagram of an apparatus for implementing a method for controlling a flotation process; in fig. 2 - graphs, reflecting the processes occurring

in the flotation scheme when implementing the proposed method. Graph A reflects the change in copper content in lead concentrate; B — change in lead content in copper concentrate; B - variation of lead content in the main flotation froth product; G and D - change in consumption of the collector and the depressor, respectively; E - change the position of the gate of the last chamber, the second clean-up.

The device consists of the main 1, two roughing 2 and 3 and two control 4 and 5 operations. The final separation products are lead concentrate 6-froth product of the second cleaning, and copper concentrate 7 - tails of the second control flotation. The quality of input 8, intermediate 9 and output products of the flotation circuit is monitored by sensors 10. Copper minerals 11 depressors — sodium cyanide and calcium chloride — and collector 12 — xanthate are used in the process. The consumption of reagents is controlled by sensors 13. The pulp level in the last chamber of the second cleaning is measured by sensor 14. Specific consumption of reagents is set taking into account the mineral content in copper-lead concentrate, pulp consumption and consumption of reagents in the previous flotation.

The abrupt change in the copper content in the lead concentrate at the moment of changing the position of the gate (point G) is due to the uneven distribution of copper minerals along the height of the foam layer due to secondary enrichment processes in it.

At the occurrence of "breakthrough (point 3), i.e. when lead content in the tailings of the main flotation is equal to 55%, raising the gate of the second cleaning unit increases the yield of lead concentrate and keeps it in such a position as long as it is possible under the conditions of copper loss in it.

When the period of oscillation of the output of lead concentrate becomes 10 minutes, this means that increasing the number of floated particles (lead minerals) cannot compensate for the increased flotation activity of the depressed particles (copper minerals), and in this case, an increase in the consumption of depressors and a decrease in collector consumption (points AND).

The content of copper in lead concentrate exceeds the specified value - 2.0%.

With an increase in losses. Copper in lead concentrate lowers the gate of the second clean-up. The circulation between the first and second cleanings increases and the mass of accumulated metal moves to the beginning of the process. At the same time, the flotation rate increases due to flocculation selectivity.

When copper and lead losses in unlike concentrates remain significantly lower than the specified limits with a constant lead concentrate output, the specific consumption of depressors (point K) is reduced within 40 minutes, since this situation corresponds to a decrease in the flotation activity of the depressed minerals.

Claims (2)

1. US Patent No. 3255881, cl. 209-1, 1966.
2. Computer control at the processing plant. HEY OPI. 1975, No. 22,
ref. 93.
-t
. /
SU762345596A 1976-04-05 1976-04-05 Flotation process control method SU660712A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762345596A SU660712A1 (en) 1976-04-05 1976-04-05 Flotation process control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762345596A SU660712A1 (en) 1976-04-05 1976-04-05 Flotation process control method

Publications (1)

Publication Number Publication Date
SU660712A1 true SU660712A1 (en) 1979-05-05

Family

ID=20656187

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762345596A SU660712A1 (en) 1976-04-05 1976-04-05 Flotation process control method

Country Status (1)

Country Link
SU (1) SU660712A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295811A (en) * 1991-12-02 1994-03-22 Duracraft Corporation Portable fan with electrical control retaining stand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295811A (en) * 1991-12-02 1994-03-22 Duracraft Corporation Portable fan with electrical control retaining stand

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