CN106191458A - A kind of process reclaiming coarse gold in grinding circuit in advance - Google Patents
A kind of process reclaiming coarse gold in grinding circuit in advance Download PDFInfo
- Publication number
- CN106191458A CN106191458A CN201610532320.0A CN201610532320A CN106191458A CN 106191458 A CN106191458 A CN 106191458A CN 201610532320 A CN201610532320 A CN 201610532320A CN 106191458 A CN106191458 A CN 106191458A
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- riffler
- hydrocyclone
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of process reclaiming coarse gold in grinding circuit in advance, comprise the following steps: first, carry out ore grinding process by feeding ball mill after crushing raw ore, then feed hydrocyclone pump pond and obtain slurry；Secondly, slurry is delivered to hydrocyclone group and carries out staged care, obtain overflow product and underflow product, underflow product is emitted into riffler, riffler includes 1# riffler and 2# riffler, being configured and control the unlatching quantity of hydrocyclone by hydrocyclone mounting structure, can make 2/3 entrance 1# riffler of underflow product population, 1/3 enters 2# riffler；Finally, the underflow product in 2# riffler feeding vibrosieve and carries out sieve classification process, oversize returns to hydrocyclone pump pond, and undersize feeds centrifugal reselection machine and carries out gravity separation, selects coarse gold；The present invention can reduce technological equipment investment, reduces occupation area of equipment, and is effectively improved the response rate of gold.
Description
Technical field
The present invention relates to gold mine process field, concretely relate to a kind of in grinding circuit, reclaim coarse gold in advance
Process.
Background technology
In rocked-gold mine, though gravity separation technology is not the main gold means that carry, but gravity treatment has and does not consumes medicament, and environment is dirty
Contaminating little, device structure is simple, low power consumption and other advantages, thus most of rocked-gold mine is all provided with gravity treatment work in technological process
Skill, in order to reclaim monomeric gold.But in current gold gravity separation technology, the technique such as conventional chute, jigging, shaking table and artificial elutriation
There is the shortcomings such as treatment effeciency is low, occupation area of equipment is big, not only hand labor intensity is big, and the response rate of gold is relatively low, point
Select the low meeting of efficiency to cause the thick gold of part to enter follow-up Carbon-in-leach flow process, and current conventional extraction time cannot be by molten for thick gold
Solving, thus cause it to enter mine tailing, indivedual ore dressing plants there will be gold grade in part mine tailing and, close or larger than the situation of raw ore, make
Become the serious golden wasting of resources, also can affect the economic benefit of enterprise simultaneously.
Summary of the invention
It is an object of the invention to, provide one to return in advance in grinding circuit for solving problems of the prior art
Receive the process of coarse gold, it is possible to decrease technological equipment investment, reduce occupation area of equipment, and be effectively improved the response rate of gold.
For achieving the above object, the technical solution adopted in the present invention is: one reclaims coarse grain in grinding circuit in advance
The process of gold, this process comprises the following steps:
Step one, being 0-12mm by crushing raw ore to granularity, crushed product feeds ball mill and carries out ore grinding process, obtains grinding machine row
Material, mill discharge feeds hydrocyclone pump pond and obtains slurry；
Step 2, the slurry obtained is delivered to hydrocyclone group by Pulp pump carries out staged care, waterpower in step one
The feed pressure of a cluster cyclone is 0.1MPa to 0.18MPa, after the classified process of hydrocyclone group available overflow product and
Underflow product, overflow product, after deslagging screen processes, is delivered to concentrate and Cyanide Leaching workshop, and underflow product is emitted into is located at water
The riffler of power a cluster cyclone lower end, riffler includes that 1# riffler and 2# riffler, 1# riffler and 2# riffler are respectively provided with
For semi-circular flume structure, 1# riffler is connected to ball mill material inlet by a desilting pipeline, and 2# riffler passes through a desilting
Pipeline is connected to the vibrosieve material inlet of gravity treatment system, by the configuration of hydrocyclone mounting structure and Valve controlling hydraulic cyclone
The unlatching quantity of device, regulation and control underflow product enters vibrosieve and the ratio of ball mill；
Underflow product in step 3,2# riffler feeds vibrosieve and carries out sieve classification process, and oversize returns waterpower rotation
Stream device pump pond, through-screen size is-2mm, feeds centrifugal reselection machine and carries out gravity separation, selects coarse gold, through gravity separation
After the mine tailing that obtains return to hydrocyclone pump pond.
By the configuration of hydrocyclone mounting structure and the unlatching quantity of Valve controlling hydrocyclone, underflow product can be made
2/3 entrance 1# riffler of total amount, 1/3 entrance 2# riffler of underflow product population.
In 1# riffler and 2# riffler, the ratio of underflow product entrance vibrosieve and ball mill can be according to grinding system
Circulating load adjusts, and Adjustment principle is to make the material ratio mine-supplying quantity new with grinding system of entrance gravity treatment system suitable.
Centrifugal reselection machine in step 3 uses 60g gravitational field and fluidised Codium fragile (Sur.) Har. scattered enrichment bed to carry out at sorting
Reason.
Crushed product in step one feeds ball mill by belt conveyor and carries out wet milling process.
Mill discharge in step one is from flowing to hydrocyclone pump pond.
Compared with prior art, the invention have the benefit that
1, technological process of the present invention is simple, by transforming traditional hydrocyclone single annular riffler as two dicyclos
The transformation of shape flume structure, after graded operation completes, can realize ore pulp and be allocated in the ratio of technological requirement, instead of ore deposit
Slurry allotter, can effectively lower equipment setting height(from bottom), simplifies ore pulp pipeline and arranges, optimizes plant layout structure.Consider ball milling
In machine-cyclone closed circuit grinding, ore pulp circulation ratio is high, and system circulating load generally up to 250 ~ 350%, adds in cycle operation
Entering when sorting in advance, can cause material is repeated several times sorting, it is impossible to maximized by the functioning efficiency of gravity treatment system, thus this
Invention have employed hydrocyclone 1/3 classification underflow and feeds the process of gravity treatment system, coordinates efficient centrifugal reselection simultaneously
Equipment, from the point of view of industrial practice effect, has reached the highest efficiency of separation and the response rate, all feeds gravity treatment relative to underflow
Process, can significantly save equipment and construction investment, reduces work production and management cost；
2, the present invention uses the centrifugal reselection equipment of high magnification strengthening gravitational field, can realize high concentration ratio and the high efficiency of separation, energy
Enough being effectively improved the gold recovery of full factory, increase the economic benefit of enterprise, equipment disposal ability is big simultaneously, and floor space is little, can
Reduce workshop capital expenditure cost；
3, the present invention is by reclaiming coarse gold in advance, can reduce and enter the gold mine amount leaching operation, saves the consumption leaching medicament
Amount, shortens extraction time, improves the ore treatment ability leaching operation, reduces gold loaded carbon consumption.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
As it is shown in figure 1, a kind of process reclaiming coarse gold in grinding circuit in advance, this process includes following
Step:
Step one, raw ore is put into that to be crushed to granularity in jaw crusher be 0-12mm, namely be crushed to granularity less than 12mm, broken
Broken product feeds ball mill by belt conveyor or other load mode and carries out wet milling process, obtains mill discharge, mill
Certainly flow to hydrocyclone pump pond obtains slurry to machine discharge；
Step 2, the slurry obtained is delivered to hydrocyclone group by Pulp pump carries out staged care, waterpower in step one
The feed pressure of a cluster cyclone is 0.1MPa to 0.18MPa, feed pressure definite in operation need to according to pulp density or other
Technological factor is adjusted, and available overflow product and underflow product after hydrocyclone component level, overflow product is particulate portion
Point, granularity is that 0-75 μm grade is not less than 85%, and overflow product, after deslagging screen processes, is delivered to concentrate and Cyanide Leaching workshop,
Underflow product is coarse component, is emitted into the riffler being located at hydrocyclone group lower end, and riffler includes 1# riffler and 2#
Riffler, 1# riffler and 2# riffler are disposed as semi-circular flume structure, 1# riffler and 2# riffler lower end and are respectively provided with
Having a desilting pipeline, 1# riffler is connected to ball mill material inlet by a desilting pipeline, and 2# riffler passes through a desilting pipe
Road is connected to the vibrosieve material inlet of gravity treatment system, and each hydrocyclone enters one end, ore deposit at it and is provided with valve, passes through water
Power cyclone mounting structure configures, and such as water conservancy cyclone installs the difference of quantity, and by Valve controlling hydrocyclone
Unlatching quantity, and then regulation and control underflow product enters vibrosieve and the ratio of ball mill, such as, can make the 2/ of underflow product population
3 enter 1# riffler, 1/3 entrance 2# riffler of underflow product population.In 1# riffler and 2# riffler, underflow product enters
The ratio of vibrosieve and ball mill can adjust according to the circulating load of grinding system, and Adjustment principle is the thing making entrance gravity treatment system
Material ratio is suitable with the new mine-supplying quantity of grinding system, and in the present invention, in 1# and 2# riffler, the allocation proportion of 2:1 is to grind according to routine
Ore deposit circulating load 250%-350% is arranged, if circulating load is 200%, then distributes according to the ore pulp of two rifflers of Adjustment principle
Ratio need to be adjusted to 1:1.
Underflow product in step 3,2# riffler feeds vibrosieve and carries out sieve classification process, and oversize returns water
Power cyclone pump pond, through-screen size is 0-2mm, namely the granularity of undersize is less than 2mm, feeds centrifugal reselection machine and carries out
Gravity separation, selects coarse gold, and the mine tailing obtained after gravity separation returns to hydrocyclone pump pond.Centrifugal reselection equipment utilizes
60g high magnification strengthening gravitational field and fluidised Codium fragile (Sur.) Har. dissipate enrichment bed and carry out sorting process, and disposal ability is big, floor space
Little, the concentration ratio of Gold Concentrate under Normal Pressure is up to 1000 ~ 3000 times, and the response rate is significantly larger than conventional articulated gravity screening installation.Centrifugal reselection concentrate
For high-grade Gold Concentrate under Normal Pressure, mine tailing returns to hydrocyclone pump pond.
Claims (6)
1. the process reclaiming coarse gold in grinding circuit in advance, it is characterised in that: this process includes following
Step:
Step one, being 0-12mm by crushing raw ore to granularity, crushed product feeds ball mill and carries out ore grinding process, obtains grinding machine row
Material, mill discharge feeds hydrocyclone pump pond and obtains slurry；
Step 2, the slurry obtained is delivered to hydrocyclone group by Pulp pump carries out staged care, waterpower in step one
The feed pressure of a cluster cyclone is 0.1MPa to 0.18MPa, obtains overflow product and the end after the classified process of hydrocyclone group
Miscarriage product, overflow product, after deslagging screen processes, is delivered to concentrate and Cyanide Leaching workshop, and underflow product is emitted into is located at waterpower
The riffler of a cluster cyclone lower end, riffler includes that 1# riffler and 2# riffler, 1# riffler and 2# riffler are disposed as
Semi-circular flume structure, 1# riffler is connected to ball mill material inlet by a desilting pipeline, and 2# riffler passes through a desilting pipe
Road is connected to the vibrosieve material inlet of gravity treatment system, by the configuration of hydrocyclone mounting structure and Valve controlling hydrocyclone
Unlatching quantity, regulation and control underflow product enters vibrosieve and the ratio of ball mill；
Underflow product in step 3,2# riffler feeds vibrosieve and carries out sieve classification process, and oversize returns waterpower rotation
Stream device pump pond, through-screen size is 0-2mm, feeds centrifugal reselection machine and carries out gravity separation, selects coarse gold, through gravity separation
After the mine tailing that obtains return to hydrocyclone pump pond.
A kind of process reclaiming coarse gold in grinding circuit in advance the most according to claim 1, it is characterised in that:
By the configuration of hydrocyclone mounting structure and the unlatching quantity of Valve controlling hydrocyclone, the 2/ of underflow product population can be made
3 enter 1# riffler, 1/3 entrance 2# riffler of underflow product population.
A kind of process reclaiming coarse gold in grinding circuit in advance the most according to claim 1 and 2, its feature exists
In: in 1# riffler and 2# riffler, the ratio of underflow product entrance vibrosieve and ball mill can be born according to the circulation of grinding system
Lotus adjusts, and Adjustment principle is to make the material ratio mine-supplying quantity new with grinding system of entrance gravity treatment system suitable.
A kind of process reclaiming coarse gold in grinding circuit in advance the most according to claim 1 and 2, its feature exists
In: in step 3, centrifugal reselection machine uses 60g gravitational field and fluidised Codium fragile (Sur.) Har. scattered enrichment bed to carry out sorting process.
A kind of process reclaiming coarse gold in grinding circuit in advance the most according to claim 1, it is characterised in that:
Crushed product in step one feeds ball mill by belt conveyor and carries out wet milling process.
A kind of process reclaiming coarse gold in grinding circuit in advance the most according to claim 1, it is characterised in that:
Mill discharge in step one is from flowing to hydrocyclone pump pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532320.0A CN106191458A (en) | 2016-07-08 | 2016-07-08 | A kind of process reclaiming coarse gold in grinding circuit in advance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532320.0A CN106191458A (en) | 2016-07-08 | 2016-07-08 | A kind of process reclaiming coarse gold in grinding circuit in advance |
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| CN106191458A true CN106191458A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610532320.0A Pending CN106191458A (en) | 2016-07-08 | 2016-07-08 | A kind of process reclaiming coarse gold in grinding circuit in advance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187878A (en) * | 2017-12-29 | 2018-06-22 | 潘自维 | A kind of one and half closed circuit grinding grading techniques |
| CN109731668A (en) * | 2019-02-15 | 2019-05-10 | 赤峰柴胡栏子黄金矿业有限公司 | The method of tailings total cyanogen concentration is reduced in a kind of gold mine ore dressing process |
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| CN104152711A (en) * | 2014-08-06 | 2014-11-19 | 哈巴河金坝矿业有限公司 | Method and device for performing all-mud cyaniding recycling on gold ores |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187878A (en) * | 2017-12-29 | 2018-06-22 | 潘自维 | A kind of one and half closed circuit grinding grading techniques |
| CN108187878B (en) * | 2017-12-29 | 2021-02-02 | 中业纳米科技(烟台)有限公司 | One-section semi-closed-circuit ore grinding and grading process |
| CN109731668A (en) * | 2019-02-15 | 2019-05-10 | 赤峰柴胡栏子黄金矿业有限公司 | The method of tailings total cyanogen concentration is reduced in a kind of gold mine ore dressing process |
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Application publication date: 20161207 |