CN106964492A - Improve the method and device of the selected copper grade of copper - Google Patents
Improve the method and device of the selected copper grade of copper Download PDFInfo
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- CN106964492A CN106964492A CN201710321308.XA CN201710321308A CN106964492A CN 106964492 A CN106964492 A CN 106964492A CN 201710321308 A CN201710321308 A CN 201710321308A CN 106964492 A CN106964492 A CN 106964492A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The present invention relates to a kind of method and device for improving the selected copper grade of copper, this method one is that first the coarse-fine ore pulp I of copper adds water controlled concentration, adds waterglass, calgon, lime and is adjusted, stirring obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper；Two be that the coarse-fine buffer accumulation of ore pulp II of copper delivered into selected I groove of copper is selected, obtains copper concentrate I and chats I；Three be to send selected II groove of copper selected copper concentrate I, obtains copper concentrate and chats II, the device includes：Frequency modulation agitator, the buffer pool provided with ultrasonic level gage and submerged pump, with dividing plate I selected I groove of copper is divided into selected I groove of copper and selected II groove of copper, the intermediate box provided with fixed cone valve, copper cleaner cell is divided into two parts dividing plate II, suction flotation device I, suction flotation device II and direct current flotation device, it has the advantages that the copper grade height of copper concentrate, copper concentrate measuring copper smaller than small, installation area than big, copper concentrate sulphur copper, small investment, difficulty of construction is low, method and device is simple to operate, remarkable in economical benefits etc., suitable for ore dressing industry application.
Description
Technical field
The present invention relates to technical field of mineral processing, more particularly to a kind of method and device for improving the selected copper grade of copper,
Suitable for ore dressing industry application.
Background technology
Too long in flow is avoided in order to reach in ore deposit flotation process both at home and abroad at present, while space-efficient purpose is saved,
Rough concentrate is directly entered selected operation and because of production technology needs often by pipeline, must also add various in coarse-fine ore pulp
Regulator, to produce qualified concentrate containing.But traditional handicraft generally existing is not enough as follows：One is that regulator is added to coarse-fine ore pulp
In, begin to carry out selected operation, regulator does not have action time substantially, and medicament effectiveness does not also give full play to, and both causes medicine
The waste of agent, make it that Adjustment effect is poor again；Two be that, only through primary cleaning, concentrate grade is low, and selected operation liquid level easily by
The influence of roughing operation, when rough concentrate yield is fluctuated, selected operation liquid level is fluctuated therewith, is controlled unstable.Due in ore dressing
In factory's design process, site technique flow is often set according to ore beneficiation feasibility research report.So site technique flow one
Denier is determined, it is difficult to be modified again, even if the purpose for changing technological process can be reached by technological transformation, it is also desirable to expend huge expense
With.Therefore, most ore dressing plant meetings are since it is desired that putting into enormous expenditure and abandoning carrying out technological transformation to original technological process.Together
Sample, with the progress of ore extraction, some properties of ore may change so that cause the technological process of initial design without
Method meets production requirement.In addition, with expanding economy, can also be improved therewith to the requirement of ore dressing plant product quality, existing stream
Journey design is unable to reach higher requirement：Such as in terms of concentrate grade is improved, most common method is " the selected job step of increase
Number ", i.e., scene needs to place more flotation devices, and reaching increases the purpose of selected operation hop count, but the ore dressing of the overwhelming majority
Factory is very compact due to device layout, and not unnecessary space additionally increases flotation device to put.
To solve the above problems, Chinese patent discloses the technical scheme that some solve some above-mentioned problems successively：
Chinese patent CN1895788 discloses a kind of " the ore-dressing technique method that can improve concentrate grade and the rate of recovery ", should
Method is, in classical three section of one closed circuit ore crushing technique flow, to add one of Ultrafine Grinding i.e. bed of material rolling-type disintegrating apparatus, grain
Degree control is in -5mm or so, and the technique for realizing much broken and lessmill can improve grinding efficiency and the degree of dissociation of ore, but weak point meeting
Muck operation and maintenance cost are greatly increased, while influenceing muck treating capacity.
Chinese patent CN103801460A is disclosed " a kind of floatation process of low-grade copper "：Employ the new collecting of cupro-nickel
Agent and the process optimization for taking three roughings, are conducive to the raising of copper concentrate copper grade and the rate of recovery, and weak point is using work
Property charcoal carry out physics reagent removal and lime and make nickel mineral inhibitor carrying out copper moulding, mutually containing serious.
Chinese patent CN101428251 is disclosed a kind of " method of selected section of raising molybdenum concentrate grade "：By changing essence
The some processes flow of selections, improves selected III, selected IV ore pulp beneficiation enrichment ratio, extends flotation time, is smart V flotation bubble
The raising of foam grade is laid a good foundation, so as to reach the purpose for improving final concentrate grade, is disadvantageous in that undeclared essence
IV mine tailing and selected V mine tailing are selected, selected III flotation column agitator and selected III flotation froth are returned respectively, if influence is selected
III flotation and the classification of selected III foam and regrinding process, control condition is not also specified and concentrate grade increase rate is little.
Seek a kind of method and device for improving the selected copper grade of copper for this and just seem particularly urgent.
The content of the invention
The task of the present invention is completed by the following technical programs：
It is a kind of improve the selected copper grade of copper method, it include order below processing step and condition：
The first step：First copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls copper rough concentrate I
Mass concentration be 20~25%, secondly add 80~200g waterglass, 20~60g by the copper rough concentrate ore pulp I per ton that adds water
Calgon, 200~500g lime are adjusted, and the copper rough concentrate ore pulp for adding medicament is delivered into frequency modulation with pipeline again and stirred
Bucket is mixed, 7~10min is stirred, obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：The coarse-fine ore pulp II of copper obtained by the first step is first pumped to buffer pool accumulation, the copper of setting height is up to
Coarse-fine ore pulp II is pumped to that the cleaner cell of copper first is selected, and selected 5~8min obtains copper concentrate I and chats I；
3rd step：Send the cleaner cell of copper second selected copper concentrate I obtained by second step, selected 3~4min, obtain copper concentrate and
Chats II.
A kind of to be used to realize the device for improving the selected copper grade method of copper, it includes：
One frequency modulation agitator, for the coarse-fine reagent removal of ore pulp I of copper and the action time of extension regulator；
One buffer pool, buffer pool is provided with ultrasonic level gage and submerged pump, ultrasonic wave position meter and submerged pump interlocked control, uses
Meet the coarse-fine ore pulp II of copper of the selected requirement of copper in gained after the temporary processing through frequency modulation agitator and automatically control first time copper essence
It is elected to be industry even running；
One bronze medal cleaner cell, the selected operation for carrying out copper to the coarse-fine ore pulp of copper II；
One dividing plate I, the cleaner cell of copper first and copper the is divided into the middle dividing plate I for being provided with a circular port I by copper cleaner cell
Two cleaner cells；
One intermediate box, for installing fixed cone valve, intermediate box is the open cube case welded together with dividing plate I, and
A circular port II and a circular port are had in the middle of intermediate box bottom surface and at the circular port I of intermediate box and the contact surface of dividing plate I
III, circular port III is consistent with the size of circular port I, a cone valve is provided with intermediate box, by adjusting cone valve and circular port II
Gap length controls the liquid level that second of bronze medal is selected.
One dividing plate II, dividing plate II is placed in copper cleaner cell, and the cleaner cell of copper first is pressed into 1:1 is divided into two parts, in dividing plate II
Bottom in the middle of be provided with a rectangular opening；
One suction flotation device I, it is selected for carrying out second to selected gained copper concentrate I for the first time；
The one suction direct current flotation device of flotation device II and one, it is selected for the first time for being carried out to the coarse-fine ore pulp of copper II.
Percentage described in specification is mass percent.
The present invention has advantages below compared with prior art：
(1) copper grade of copper concentrate is high, more than 27%；Copper concentrate measuring copper is than high, more than 71；The sulphur copper ratio of copper concentrate
It is small, less than 1.4.
(2) installation area is small, small investment, difficulty of construction are low.
(3) simple to operate, remarkable in economical benefits of method and device etc..
Brief description of the drawings
Fig. 1 is according to a kind of method and device schematic diagram for improving the selected copper grade of copper proposed by the present invention.
Each sign is represented respectively in accompanying drawing：
1. in the dividing plate I 7. of 5. bronze medal flotation cell of frequency modulation agitator 2. buffer pool, 3. ultrasonic level gage, 4. submerged pump 6.
Between the dividing plate II 10. of 8. cone valve of case 9. suction flotation device I 11. suction the direct current flotation device of flotation device II 12.
Embodiment
Explanation is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of method for improving the selected copper grade of copper, it includes order below processing step and condition：
The first step：First copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls copper rough concentrate I
Mass concentration be 20~25%, secondly add 80~200g waterglass, 20~60g by the copper rough concentrate ore pulp I per ton that adds water
Calgon, 200~500g lime are adjusted, and the copper rough concentrate ore pulp for adding medicament is delivered into frequency modulation with pipeline again and stirred
Bucket 1 is mixed, 7~10min is stirred, obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：The coarse-fine ore pulp II of copper obtained by the first step first is pumped into buffer pool 2 to accumulate, the copper of setting height is up to
Coarse-fine ore pulp II is pumped to that the cleaner cell of copper first is selected, and selected 5~8min obtains copper concentrate I and chats I；
3rd step：Send the cleaner cell of copper second selected copper concentrate I obtained by second step, selected 3~4min, obtain copper concentrate and
Chats II.
Described method further comprises that the chats I of the second step is back into copper roughing system selects again.
Described method further comprises that the chats II of the 3rd step is back into the selecting system of copper first selects again.
A kind of to be used to realize the device for improving the selected copper grade method of copper, it includes：
One frequency modulation agitator 1, for the coarse-fine reagent removal of ore pulp I of copper and the action time of extension regulator；
One buffer pool 2, buffer pool 2 is provided with ultrasonic level gage 3 and submerged pump 4, and ultrasonic wave position meter 3 and submerged pump 4 are interlocked
Control, for it is temporary handled through frequency modulation agitator 1 after gained meet the coarse-fine ore pulp II of copper of the selected requirement of copper and automatically control the
The selected operation even running of copper；
One bronze medal cleaner cell, the selected operation for carrying out copper to the coarse-fine ore pulp of copper II；
One dividing plate I 6, the cleaner cell of copper first and copper are divided into the middle dividing plate I 6 for being provided with a circular port I by copper cleaner cell
Second cleaner cell；
One intermediate box 7, for installing fixed cone valve 8, intermediate box 7 is the open cube case welded together with dividing plate I 6,
And have a circular port II and a circle in the middle of the bottom surface of intermediate box 7 and at the circular port I of intermediate box 7 and the contact surface of dividing plate I 6
The size of shape hole III, circular port III and circular port I is consistent, and a cone valve 8 is provided with intermediate box 7, by adjusting cone valve 8 and circle
The gap length in hole II controls the liquid level that second of bronze medal is selected.
One dividing plate II 9, dividing plate II 9 is placed in copper cleaner cell, and the cleaner cell of copper first is pressed into 1:1 is divided into two parts, in dividing plate
A rectangular opening is provided with the middle of II 9 bottom；
One suction flotation device I 10, it is selected for carrying out second to selected gained copper concentrate I for the first time；
The one suction direct current flotation device 12 of flotation device II 11 and one, it is selected for the first time for being carried out to the coarse-fine ore pulp of copper II.
Described device further comprises the volume of the described selected cleaner cell of buried copper first of copper and the cleaner cell of copper second
Than for 2:1.
Described device further comprises that described intermediate box (7) length is about 1/3rd of dividing plate (6) length.
Described device further comprises that described intermediate box (7) height is about 3/4ths of dividing plate (6) height.
Described device further comprises length direction and dividing plate (6) length direction one during described intermediate box (7) welding
Cause, the center line of intermediate box (7) and the coincidence of dividing plate (6) center line and intermediate box (7) will be flushed with the most upper edge of dividing plate (6) above.
Embodiment 1
By taking the copper ore floatation factory of Fujian as an example, the main metalliferous mineral of mineral is pyrite, alpha chalcocite, covellite, sulphur arsenic
Copper mine, separately there is micro bornite, chalcopyrite, tetrahedrite, sulphur tin iron copper mine, wittichenite, rusty gold etc.；Nonmetallic ore owner
To be quartz, dickite, alunite and a small amount of ferriferous oxide, sericite, chlorite etc..Its raw ore multielement analysis result is shown in
Table 1.
The raw ore multielement analysis result of table 1
A kind of method for improving the selected copper grade of copper, successively including order below step and condition：
The first step：Copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls copper rough concentrate
Mass concentration is 25%, at the same also regulator waterglass is added by 100g/t, regulator calgon is added by 30g/t and
Regulator lime is added by 250g/t, is then sent in bilobed wheel frequency modulation agitator 1 and is stirred by copper rough concentrate pipeline
10min, obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：Buffering 2 is sent by the coarse-fine ore pulp II of copper obtained by the first step, the liquid level of buffer pool 2 passes through ultrasonic wave position
Meter 3 and the interlocked control of submerged pump 4, after the liquid level of buffer pool 2 reaches setting height, submerged pump 4 is automatically turned on, by the coarse-fine ore pulp of copper
II delivers to the cleaner cell of copper first, carries out the selected 6min of copper first, obtains copper concentrate I and chats I, chats I send copper roughing system.
3rd step：The cleaner cell of copper second is sent by copper concentrate I obtained by second step, the is carried out under no added any medicament regulation
The selected 3min of secondary copper, obtains copper concentrate and chats II, and chats II send the selecting system of copper first.
The device of the selected copper grade method of copper is improved for realizing, it includes：Frequency modulation agitator, buffer pool, ultrasonic solution
Position meter, submerged pump, copper flotation cell, dividing plate 1, intermediate box, cone valve, dividing plate 2, suction flotation device 1, suction flotation device II and D. C. floating
Machine is selected, is defined by embodiment description.
The rate of recovery of the present embodiment copper is 91.52%, and the copper grade of copper concentrate is 27.93%, copper concentrate measuring copper ratio
For 71.62, the sulfur grade of copper concentrate is 36.46%, and the sulphur copper ratio of copper concentrate is 1.31.
Embodiment 2
Anhui Copper sulfide ore, the main metalliferous mineral of mineral is pyrite, the yellow iron iron ore of magnetic, alpha chalcocite, sulphur arsenical copper
Ore deposit, separately there is a small amount of chalcopyrite, tetrahedrite, sulphur tin iron copper mine, wittichenite, rusty gold etc.；Nonmetallic mineral is mainly quartz,
A small amount of alunite, dickite, ferriferous oxide, sericite, chlorite etc..Its raw ore multielement analysis the results are shown in Table 2.
The raw ore multielement analysis result of table 2
A kind of method for improving the selected copper grade of copper, successively including order below step and condition：
The first step：Copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls copper rough concentrate
Mass concentration is 24%, at the same also regulator waterglass is added by 80g/t, regulator calgon is added by 30g/t and
Regulator lime is added by 200g/t, is then sent by copper rough concentrate pipeline in bilobed wheel frequency modulation agitator 1 and is stirred 8min,
Obtain meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：Buffering 2 is sent by the coarse-fine ore pulp II of copper obtained by the first step, the liquid level of buffer pool 2 passes through ultrasonic wave position
Meter 3 and the interlocked control of submerged pump 4, after the liquid level of buffer pool 2 reaches setting height, submerged pump 4 is automatically turned on, by the coarse-fine ore pulp of copper
II delivers to the cleaner cell of copper first, carries out the selected 6min of copper first, obtains copper concentrate I and chats I, chats I send copper roughing system.
3rd step：The cleaner cell of copper second is sent by copper concentrate I obtained by second step, the is carried out under no added any medicament regulation
The selected 3min of secondary copper, obtains copper concentrate and chats II, and chats II send the selecting system of copper first.
The device that the selected copper grade method of copper is improved for realizing is same as Example 1.
The rate of recovery of the present embodiment copper is 90.82%, and the copper grade of copper concentrate is 26.12%, copper concentrate measuring copper ratio
For 74.63, the sulfur grade of copper concentrate is 37.53%, and the sulphur copper ratio of copper concentrate is 1.44.
Embodiment 3
Exemplified by the copper ore floatation factory of Jilin, the main metalliferous mineral of mineral be pyrite, alpha chalcocite, covellite, tetrahedrite,
Separately there are micro chalcopyrite, rusty gold and silver etc.；Nonmetallic mineral is mainly quartz, is secondly calcite, dolomite, thin,tough silk cloud
Female, plagioclase and potassium feldspar, chlorite, a small amount of apatite, dickite, alunite etc..Its raw ore multielement analysis result is shown in
Table 3.
The raw ore multielement analysis result of table 3
A kind of method for improving the selected copper grade of copper, successively including order below step and condition：
The first step：Copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls copper rough concentrate
Mass concentration is 26%, at the same also regulator waterglass is added by 200g/t, regulator calgon is added by 40g/t and
Regulator lime is added by 350g/t, is then sent in bilobed wheel frequency modulation agitator 1 and is stirred by copper rough concentrate pipeline
12min, obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：Buffering 2 is sent by the coarse-fine ore pulp II of copper obtained by the first step, the liquid level of buffer pool 2 passes through ultrasonic wave position
Meter 3 and the interlocked control of submerged pump 4, after the liquid level of buffer pool 2 reaches setting height, submerged pump 4 is automatically turned on, by the coarse-fine ore pulp of copper
II delivers to the cleaner cell of copper first, carries out the selected 7min of copper first, obtains copper concentrate I and chats I, chats I send copper roughing system.
3rd step：The cleaner cell of copper second is sent by copper concentrate I obtained by second step, the is carried out under no added any medicament regulation
The selected 3min of secondary copper, obtains copper concentrate and chats II, and chats II send the selecting system of copper first.
The device that the selected copper grade method of copper is improved for realizing is also same as Example 1.
The rate of recovery of the present embodiment copper is 92.32%, and the copper grade of copper concentrate is 30.13%, copper concentrate measuring copper ratio
For 65.5, the sulfur grade of copper concentrate is 37.78%, and the sulphur copper ratio of copper concentrate is 1.25.
As described above, the present invention can be better realized.Above-described embodiment is only the present invention preferably embodiment, but this
The embodiment of invention is simultaneously not restricted to the described embodiments, and other are done under Spirit Essence and principle without departing from the present invention
Change, modify, replace, combine, simplify, should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (8)
1. a kind of method for improving the selected copper grade of copper, it includes order below processing step and condition：
The first step：First copper-containing ore is added water through the coarse-fine ore pulp I of copper obtained by copper roughing operation processing and controls the matter of copper rough concentrate I
It is 20~25% to measure concentration, and it is inclined secondly to add 80~200g waterglass, 20~60g six by the copper rough concentrate ore pulp I per ton added water
Sodium phosphate, 200~500g lime are adjusted, and the copper rough concentrate ore pulp for adding medicament is delivered into frequency modulation agitator with pipeline again
(1) 7~10min, is stirred, obtains meeting the coarse-fine ore pulp II of copper of the selected requirement of copper.
Second step：The coarse-fine ore pulp II of copper obtained by the first step is first pumped to buffer pool (2) accumulation, the copper for being up to setting height is thick
Concentrate slurry II is pumped to that the cleaner cell of copper first is selected, and selected 5~8min obtains copper concentrate I and chats I；
3rd step：Send the cleaner cell of copper second selected copper concentrate I obtained by second step, selected 3~4min obtains copper concentrate and chats
Ⅱ。
2. the method according to requiring 1 according to profit, the chats I of the second step is back to copper roughing system and selected again.
3. the method according to requiring 1 according to profit, the chats II of the 3rd step is back to the selecting system of copper first and selected again.
4. a kind of be used to realize the device for improving the selected copper grade method of copper, it includes：
One frequency modulation agitator (1), for the coarse-fine reagent removal of ore pulp I of copper and the action time of extension regulator；
One buffer pool (2), buffer pool (2) is provided with ultrasonic level gage (3) and submerged pump (4), ultrasonic wave position meter (3) and submerged pump
(4) interlocked control, for it is temporary handled through frequency modulation agitator (1) after gained meet the selected requirement of copper the coarse-fine ore pulp II of copper and from
The dynamic control selected operation even running of first time copper；
One bronze medal cleaner cell, the selected operation for carrying out copper to the coarse-fine ore pulp of copper II；
One dividing plate I (6), the cleaner cell of copper first and copper are divided into the middle dividing plate I (6) for being provided with a circular port I by copper cleaner cell
Second cleaner cell；
One intermediate box (7), for installing fixed cone valve (8), intermediate box (7) is the open cube welded together with dividing plate I (6)
Case, and it is circular that one is had in the middle of intermediate box (7) bottom surface and at the circular port I of intermediate box (7) and dividing plate I (6) contact surface
The circular port III of hole II and one, circular port III is consistent with the size of circular port I, and a cone valve (8) is provided with intermediate box (7), is passed through
Regulation cone valve (8) controls the liquid level that second of bronze medal is selected with the gap length of circular port II.
One dividing plate II (9), dividing plate II (9) is placed in copper cleaner cell, and the cleaner cell of copper first is pressed into 1:1 is divided into two parts, in dividing plate
A rectangular opening is provided with the middle of the bottom of II (9)；
One suction flotation device I (10), it is selected for carrying out second to selected gained copper concentrate I for the first time；
One suction flotation device II (11) and a direct current flotation device (12), it is selected for the first time for being carried out to the coarse-fine ore pulp of copper II.
5. device according to claim 4, the body of the selected cleaner cell of buried copper first of described copper and the cleaner cell of copper second
Product is than being 2:1.
6. device according to claim 4, described intermediate box (7) length is about 1/3rd of dividing plate (6) length.
7. device according to claim 4, described intermediate box (7) height is about 3/4ths of dividing plate (6) height.
8. the device according to profit requires 4 or 6 or 7, length direction and dividing plate (6) length when described intermediate box (7) is welded
Direction is consistent, and the center line of intermediate box (7) is overlapped with dividing plate (6) center line and intermediate box (7) above will be with the most upper edge of dividing plate (6)
Flush.
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