CN106269270A - A kind of high magnesium low-grade phosphate rock column type method for separating and device - Google Patents
A kind of high magnesium low-grade phosphate rock column type method for separating and device Download PDFInfo
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- CN106269270A CN106269270A CN201610748482.8A CN201610748482A CN106269270A CN 106269270 A CN106269270 A CN 106269270A CN 201610748482 A CN201610748482 A CN 201610748482A CN 106269270 A CN106269270 A CN 106269270A
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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
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
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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
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
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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
- B03D1/14—Flotation machines
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- 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
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The present invention provides a kind of high magnesium low-grade phosphate rock column type method for separating and device, first by phosphorus ore crushing raw ore, classification, ore pulp is introduced in mineralising groove, and add reverse floatation agent and be sufficiently mixed with ore pulp, again gained mixture is introduced in Packed flotation column, this mixture one or more enters flotation column to ore deposit point through be positioned at that flotation column shaft middle and upper part divides, the bubble counter current contacting of ore pulp granule and rising, and the rising group of the tiny bubble produced along gas bubbler system and descending；The granule containing magnesium collided with bubble or adhere to will rise to the top of flotation column, eventually arrive at the interface between ore pulp collecting district and foam clear area, ore deposit and discharge outside post；Drop to the granule bottom flotation column and be low magnesium phosphorus concentrate, through concentration and settlement after discharge post, obtain finished product phosphorus concentrate pulp.By this mineralising mode in hgher efficiency of adverse current mineralising, having bigger selected ability than mechanical type agitated flotation cell, mine slurry grade is bigger along post vertical change.
Description
Technical field
The present invention relates to a kind of high magnesium low-grade phosphate rock column type method for separating and used device, belong to chemical industry equipment and
Chemical process field.
Background technology
After entering Packed flotation column along with reverse floatation agent with slurry mixture, in trapping district, ore pulp granule and rising
Bubble counter current contacting, the passage that filler is tiny simultaneously can regard small Packed flotation column as, and these passages make ore particle
And between bubble, the probability of collision is greatly increased, thus accelerates flotation efficiency.By " countercurrently mineralising ", this is in hgher efficiency
Mineralising mode, has bigger selected ability than mechanical type agitated flotation cell, and mine slurry grade is relatively big along post vertical change, therefore technique
Upper Packed flotation column at most uses efficient, the low cost that simply turn to realize mid low grade phosphate rock of two sections of operations, i.e. flow process to float
Choosing provides probability.Can break away from, by this technology, the constraint that in traditional work, flow process is longer, reduce flotation operation
This purpose.
Floatation is as the important channel of mid low grade phosphate rock beneficiation technologies, and it is low in propelling that its processing cost is lowered in research
The key issue of grade phosphorus mine ore dressing industrialization process.The enforcement period of the seventh five-year plan, China was to selecting phosphorus flotation device key technology to carry out scientific research
Tackling key problem, have developed first phosphorus ore Special Flotation truly with independent intellectual property right: PF series.Floating for adapting to
The demand that optional equipment maximizes occurs in that KYF series flotation device, the appearance of KYF series flotation device make China's phosphate rock floating the most in succession
Machine technology rises to a new height.But, flotation device floor space is big, long flow path, and operating cost is high, and necessary scrapes bubble dress
Put, bubble generator and mechanical stirring device etc. make maintenance cost increase.In order to High-Efficiency Utilization of Phosphorus ore resources is this cheap and
Valuable resource, processes the flotation of mid low grade phosphate rock and has higher requirement, Mid-and low-grade phosphate rock resources extensive
Utilization must reduce its processing cost, develops novel column-type floatation equipment extremely the most urgent.
According to country's " 12 " science and technology supporting project project, " low-grade refractory processes the exploitation of phosphorus ore efficient green and comprehensive utilization
With technical research and demonstration " in task and requirement, Hubei Yihua Fertilizer Co., Ltd build Packed flotation column pilot-plant.High
The novel pillar floatation equipment column-type floatation energy consumption of magnesium low-grade phosphorus ore is less than mechanical type agitated flotation cell more than 30%, takes up an area face
Amassing and greatly reduce, equipment investment reduces more than 20%.Make phosphorus concentrate grade reach more than 30% by the separation operation of short route, return
Yield reaches more than 83%, content of magnesium less than 1.0%.Pilot scale purpose is intended to the assorting room feature by dissecting rock phosphate in powder, explores
With the method seeking to realize Hubei mid low grade phosphate rock stone efficient pillar sorting, exploitation is formed and is suitable for high magnesium low-grade phosphate rock resource
Technically feasible, the green mineral processing technology of reasonable in economy of characteristic, formed new technology, efficient medicament, main equipment in
The high magnesium low-grade flotation of phosphate rock integration engineering technology of one, processes the big of high magnesium low-grade phosphorus ore 1,200,000 tons in newly-built 1 year
Type ore dressing plant demonstration project, advances the industrialization process of mid low grade phosphate rock stone efficient separation, improves China's phosphate rock resource supply
Safety guarantee degree.
Summary of the invention
The present invention uses single reverse flotation flowsheet, and selection Packed flotation column is floatation separator, first by phosphorus ore raw ore
Broken, ore grinding and classification, controlling mog is 150～-200 mesh > 85%, controlling phosphorus ore pulp density is 20%～40%,
Then ore pulp is introduced in mineralising groove, and add reverse floatation agent and be sufficiently mixed with ore pulp.Wherein, flotation collector be soaps or
Fatty acid collecting agent, depressing agent is sulphuric acid, phosphoric acid or two kinds of sour mixture.Again the introducing filling of gained mixture is floated
Selecting in post, ore pulp one or more enters flotation column to ore deposit point through be positioned at that flotation column shaft middle and upper part divides, and along gas
The rising group of the tiny bubble that body foam maker system produces is descending；The granule containing magnesium collided with bubble or adhere to will rise
To the top of flotation column, eventually arrive at the interface between ore pulp collecting district and foam clear area, ore deposit and discharge outside post, thus reach to remove
Go the effect of magnesium addition in phosphorus ore；Drop to the granule bottom flotation column and be low magnesium phosphorus concentrate, through concentration and settlement after discharge post,
Obtain finished product phosphorus concentrate pulp.
Described reverse floatation agent includes flotation collector and depressing agent, and wherein, flotation collector is soaps or fat
Fat acid collector, depressing agent is sulphuric acid, phosphoric acid or two kinds of sour mixture.
Described soaps is petroleum sodium sulfonate or enuatrol；Described fatty acid is oleic acid, coconut oil, behenic acid or Asia
One or both in oleic acid.
A kind of high magnesium low-grade phosphate rock column type sorting unit, head tank is connected with wash water stream gauge through pipeline, wash water flow
Meter is connected with Packed flotation column top through pipeline；Surge tank is connected with feed well through ore slurry pump 2, and feed well top is provided with suppression
Agent administration pump, pH adjusting agent administration pump, collecting agent administration pump；Feed well after pipeline is connected with ore slurry pump 1 again with filling flotation
Post top connects；Compressor is connected with gas flowmeter after pipeline is connected with dashpot again, and gas flowmeter is connected to filling
The bottom of flotation column；The bottom of Packed flotation column is connected in the middle part of Packed flotation column through circulating pump.
Described Packed flotation column top is provided with water frame, and water frame bottom is provided with sieve plate, and sieve plate is arranged with former
Material charging aperture, this material inlet is arranged on Packed flotation column sidewall；Material inlet is arranged with filler upper holder, if
It is equipped with bracing frame under filler；For being provided with ripple orifice plate between bracing frame under filler upper holder and filler；Bracing frame under filler
Being arranged with at least three layer screen plate, sieve plate spacing from top to bottom reduces successively；Orlop sieve plate is arranged with and is provided with two
Symmetrical feeding mouth；Being provided with air feed pipe and mine tailing outlet bottom Packed flotation column, air feed pipe gos deep into filling and floats
The top in post is selected to be provided with loop exit baffle plate.
The top of described Packed flotation column is provided with wedge shape concentrate outlet conduit, and the parcel filling of this concentrate outlet conduit is floated
Select the top of post；Described water frame is the ring-type shower water frame that endless tube surrounds, and endless tube is arranged with the hole for water spraying of 3mm, Kong Jian
Away from for 3mm；Filler upper holder and bracing frame under filler are and are built-in with that the grid of 10mm is fixing to be formed.
A diameter of 600mm of Packed flotation column post mouth；A diameter of 500mm of the sieve plate that water frame bottom is arranged, is and fills
Filling out the diameter of flotation column, the distance of this sieve plate to post mouth is 450mm, and the distance of this sieve plate to filler upper holder is 750mm；Fill out
Under material upper holder and filler, the distance between bracing frame is 1000mm, this distance i.e. length of ripple orifice plate；Support under filler
Frame bottom arranges and haves three layers sieve plate, and wherein, under filler, bracing frame is 200mm with the spacing of ground floor sieve plate, ground floor sieve plate and the
The spacing of two layers of sieve plate is 700mm, and second layer sieve plate is 600mm with the spacing of third layer sieve plate, between third layer sieve plate baffle plate
Away from for 250mm.
Two described symmetrical feeding mouths are arranged with rotational flow inlet baffle plate, and two symmetrical feeding mouths are for tilting upward
15°；1500mm bottom two symmetrical feeding mouth distance Packed flotation columns, bottom rotational flow inlet baffle plate distance Packed flotation column
1400mm。
After entering Packed flotation column along with reverse floatation agent with slurry mixture, in trapping district, ore pulp granule and rising
Bubble counter current contacting, the passage that filler is tiny simultaneously can regard small Packed flotation column as, and these passages make ore particle
And between bubble, the probability of collision is greatly increased, thus accelerates flotation efficiency.By " countercurrently mineralising ", this is in hgher efficiency
Mineralising mode, has bigger selected ability than mechanical type agitated flotation cell, and mine slurry grade is relatively big along post vertical change, therefore technique
Upper Packed flotation column at most uses efficient, the low cost that simply turn to realize mid low grade phosphate rock of two sections of operations, i.e. flow process to float
Choosing provides probability.Can break away from, by the method, the constraint that in traditional work, flow process is longer, reduce flotation operation
This purpose.
Accompanying drawing explanation
Fig. 1 is the high magnesium low-grade phosphate rock column type sorting unit structure chart of the present invention, wherein, 1. Packed flotation column, 2. high
Position groove, 3. compressor, 4. dashpot, 5. feed well, 6. distance mud pump, 7. inhibitor storage tank, 8.pH regulator storage tank, 9. collecting agent
Storage tank, F1. wash water stream gauge, F2. gas flowmeter, P1. ore slurry pump 1, P2. ore slurry pump 2, P3. inhibitor administration pump, P4.pH
Regulator administration pump, P5. collecting agent administration pump.
Fig. 2 is the structure chart of Packed flotation column, wherein, 11. water frames, 12. sieve plates, 13. concentrate outlets, 14. sensors
Excuse, 15. material inlets, 16. filler upper holders, bracing frame under 17. fillers, 18. ripple orifice plates, 19. feeding mouths, 20.
Rotational flow inlet baffle plate, 21. loop exit baffle plates, 22. air feed pipes, 23. mine tailing outlets.
Fig. 3 is water frame top view.
Fig. 4 is the structure chart of bracing frame under filler upper holder or filler.
Detailed description of the invention
Embodiment 1
Experimental apparatus and equipment
Capital equipment catalog 1
Experiment content
Packed flotation column is used to sort Yichang dolomite matter height magnesium mixing phosphorus ore by single hop reverse flotation flowsheet, to difference
The research of column-type floatation engineer testing, investigates into process conditions such as ore deposit amount, trapping district height, leaching requirement and pulp densities sorting
The impact of index.
A kind of high magnesium low-grade phosphate rock column type method for separating, first by phosphorus ore crushing raw ore, ore grinding and classification, controls ore grinding thin
Degree is 150～200 mesh > 85%, controlling phosphorus ore pulp density is 38%, is then introduced in mineralising groove by ore pulp, and adds anti-floating
Selecting medicament to be sufficiently mixed with ore pulp, then introduced by gained mixture in Packed flotation column, this mixture is through being positioned at flotation column post
One or more bubble counter current contacting entering flotation column, ore pulp granule and rising to ore deposit point that body middle and upper part is divided, and along
The rising group of tiny bubble that gas bubbler system produces and descending；The granule containing magnesium collided with bubble or adhere to will
Rise to the top of flotation column, eventually arrive at the interface between ore pulp collecting district and foam clear area, ore deposit and discharge outside post, thus reach
To removing the effect of magnesium addition in phosphorus ore；Drop to the granule bottom flotation column and be low magnesium phosphorus concentrate, through concentrating after discharging post
Sedimentation, obtains finished product phosphorus concentrate pulp.
Described reverse floatation agent includes flotation collector and depressing agent, and flotation collector accounts for the 1-of ore pulp gross mass
10% (preferably accounting for 5%)；Depressing agent accounts for the 1-10% (preferably comprising 3%) of ore pulp gross mass, and wherein, flotation collector is
Soaps or fatty acid collecting agent, described soaps is petroleum sodium sulfonate；Described fatty acid is oleic acid, and coconut oil is with quality
Than the mixture for 1:1.Depressing agent is sulphuric acid, the phosphoric acid mixture with mass ratio as 1:1.
A kind of high magnesium low-grade phosphate rock column type sorting unit, head tank is connected with wash water stream gauge through pipeline, wash water flow
Meter is connected with Packed flotation column top through pipeline；Surge tank is connected with feed well through ore slurry pump 2, and feed well top is provided with suppression
Agent administration pump, pH adjusting agent administration pump, collecting agent administration pump；Feed well after pipeline is connected with ore slurry pump 1 again with filling flotation
Post top connects；Compressor is connected with gas flowmeter after pipeline is connected with dashpot again, and gas flowmeter is connected to filling
The bottom of flotation column；The bottom of Packed flotation column is connected in the middle part of Packed flotation column through circulating pump.
Described Packed flotation column top is provided with water frame, and water frame bottom is provided with sieve plate, and sieve plate is arranged with former
Material charging aperture, this material inlet is arranged on Packed flotation column sidewall；Material inlet is arranged with filler upper holder, if
It is equipped with bracing frame under filler；For being provided with ripple orifice plate between bracing frame under filler upper holder and filler；Bracing frame under filler
Being arranged with at least three layer screen plate, sieve plate spacing from top to bottom reduces successively；Orlop sieve plate is arranged with and is provided with two
Symmetrical feeding mouth；Being provided with air feed pipe and mine tailing outlet bottom Packed flotation column, air feed pipe gos deep into filling and floats
The top in post is selected to be provided with loop exit baffle plate.
The top of described Packed flotation column is provided with wedge shape concentrate outlet conduit, and the parcel filling of this concentrate outlet conduit is floated
Select the top of post；Described water frame is the ring-type shower water frame that endless tube surrounds, and endless tube is arranged with the hole for water spraying of 3mm, Kong Jian
Away from for 3mm；Filler upper holder and bracing frame under filler are and are built-in with that the grid of 10mm is fixing to be formed.
A diameter of 600mm of Packed flotation column post mouth；A diameter of 500mm of the sieve plate that water frame bottom is arranged, is and fills
Filling out the diameter of flotation column, the distance of this sieve plate to post mouth is 450mm, and the distance of this sieve plate to filler upper holder is 750mm；Fill out
Under material upper holder and filler, the distance between bracing frame is 1000mm, this distance i.e. length of ripple orifice plate；Support under filler
Frame bottom arranges and haves three layers sieve plate, and wherein, under filler, bracing frame is 200mm with the spacing of ground floor sieve plate, ground floor sieve plate and the
The spacing of two layers of sieve plate is 700mm, and second layer sieve plate is 600mm with the spacing of third layer sieve plate, between third layer sieve plate baffle plate
Away from for 250mm.
Two symmetrical feeding mouths are arranged with rotational flow inlet baffle plate, and two symmetrical feeding mouths are for tilting upward 15 °；Two
1500mm, 1400mm bottom rotational flow inlet baffle plate distance Packed flotation column bottom the feeding mouth distance Packed flotation column of individual symmetry.
Air feed pipe and mine tailing outlet to the distance filled out bottom flotation column are 150mm；Spacing in the middle of rotational flow inlet baffle plate is
300mm；The a length of 250mm of loop exit baffle plate.
Experimental result and analysis
Find out following preferable process conditions through the experiment of early stage substantial amounts of desk study, carry out three parallel laboratory tests,
As shown in the table.
Under above-mentioned process conditions, open to enter to ore deposit after being filled to circulate more than the chats mouth of pipe (cylinder 1/3) in post
Material valve, the import and export gate valve of ON cycle pump, it is then turned on air self-suction tube valve, allows air enter, and ON cycle pump, then
Open wash water and PLC, control liquid level in post, finally after liquid level stabilizing 30min, take concentrate, mine tailing sample simultaneously
Product are analyzed test.Analyze test acquired results as shown in table 3 below.
As shown in Table 3, by raw ore phosphorus grade about about 27% phosphorus ore, through Packed flotation column flotation draw floating
Selecting index, concentrate grade to can reach more than 31.6, content of magnesium drops to less than 0.9, simultaneously mine tailing phosphorus grade be reduced to 6.5 with
Under, these technic indexs can meet the requirement of commercial production phosphoric acid substantially.
Reelect test
Reelecting test is the Main Means investigating flotation column test index stability with equipment performance reliability, is having determined that
Technological parameter and operating condition on the basis of, carried out 72h continuous sorting test.Flotation column single reverse flotation flowsheet 72h
Reelect result of the test and be shown in Table 4.In order to investigate the adaptability that high magnesium low-grade phosphorus ore is sorted by pillar system, reelect test in pillar
While carrying out examining flotation device flow process, and contrast, result shows: in the case of original ore property is close, adopts
Can reclaim valuable mineral more by column-type floatation flow process, the concentrate response rate is compared flotation device system and is improved 1.44%, concentrate
Grade also gets a promotion, concentrate P2O5Content improves 0.86%.
To sum up analyzing, flotation column pilot-plant test obtains P by single reverse flotation2O5Grade more than 31%, the response rate
90%, MgO mass fraction be 0.81 concentrate and tailings grade can be reduced to 6.29% good index.Concentrate quality is steady simultaneously
Fixed, system suitability is relatively strong, has fully demonstrated Packed flotation column advantage in terms of selectivity and target mineral recovery.
Brief summary
(1) exploitation has the efficient separation equipment of high selectivity and strengthening recovery feature is that high magnesium low-grade phosphorus ore processes
One important development direction, high magnesium low-grade phosphorus ore, as the one fine screening installation of effective pillar, is divided by Packed flotation column
Choosing has stronger selectivity and recovery ability.
(2) Packed flotation column single reverse flotation height magnesium low-grade phosphorus ore is used, the research of araeosystyle floatation process test, visit
Rope goes out to be measured as 8m into ore deposit3/ h, trapping district height are 3m at about 80cm, leaching requirement3/ h and pulp density are 15m3The technique bars such as/h
During part, separating effect is preferable, meets industrial requirements.
(3) preferably sorting environment owing to flotation column can create, its separating effect is more preferable than flotation device.
Claims (8)
1. one kind high magnesium low-grade phosphate rock column type method for separating, it is characterised in that first by phosphorus ore crushing raw ore, ore grinding and classification,
Controlling mog is 150 ~ 200 mesh > 85%, controlling phosphorus ore pulp density is 20% ~ 40%, and then ore pulp introduces mineralising groove
In, and add reverse floatation agent and be sufficiently mixed with ore pulp, then gained mixture is introduced in Packed flotation column, this mixture passes through
Be positioned at that flotation column shaft middle and upper part divides one or more enters flotation column to ore deposit point, and ore pulp granule countercurrently connects with the bubble of rising
Touch, and the rising group of tiny bubble that produces along gas bubbler system and descending；Collide with bubble or adhere to
Granule containing magnesium will rise to the top of flotation column, eventually arrive at the interface between ore pulp collecting district and foam clear area, ore deposit and discharge
Outside post, thus reach to remove the effect of magnesium addition in phosphorus ore；Drop to the granule bottom flotation column and be low magnesium phosphorus concentrate, discharge
Through concentration and settlement after post, obtain finished product phosphorus concentrate pulp.
2. the high magnesium low-grade phosphate rock column type method for separating described in claim 1, it is characterised in that described reverse floatation agent bag
Including flotation collector and depressing agent, wherein, flotation collector is soaps or fatty acid collecting agent, and depressing agent is sulfur
Acid, phosphoric acid or two kinds of sour mixture.
3. the high magnesium low-grade phosphate rock column type method for separating described in claim 2, it is characterised in that described soaps is oil sulphur
Acid sodium or enuatrol；Described fatty acid is one or both in oleic acid, coconut oil, behenic acid or linoleic acid.
4. one kind high magnesium low-grade phosphate rock column type sorting unit, it is characterised in that head tank is connected with wash water stream gauge through pipeline,
Wash water stream gauge is connected with Packed flotation column top through pipeline；Surge tank is connected with feed well through ore slurry pump 2, and feed well top sets
It is equipped with inhibitor administration pump, pH adjusting agent administration pump, collecting agent administration pump；Feed well after pipeline is connected with ore slurry pump 1 again with
Packed flotation column top connects；Compressor is connected with gas flowmeter after pipeline is connected with dashpot again, and gas flowmeter is even
It is connected to the bottom of Packed flotation column；The bottom of Packed flotation column is connected in the middle part of Packed flotation column through circulating pump.
5. the high magnesium low-grade phosphate rock column type sorting unit described in claim 4, it is characterised in that described Packed flotation column top
Portion is provided with water frame, and water frame bottom is provided with sieve plate, and sieve plate is arranged with material inlet, and this material inlet is arranged on
On Packed flotation column sidewall；Material inlet is arranged with filler upper holder, is provided with bracing frame under filler；Fix on filler
For being provided with ripple orifice plate between bracing frame under frame and filler；Under filler, bracing frame is arranged with at least three layer screen plate, sieve plate from
On spacing down reduce successively；Orlop sieve plate is arranged with and is provided with two symmetrical feeding mouths；Bottom Packed flotation column
Being provided with air feed pipe and mine tailing outlet, air feed pipe gos deep into the top in Packed flotation column and is provided with loop exit gear
Plate.
6. the high magnesium low-grade phosphate rock column type sorting unit described in claim 5, it is characterised in that described Packed flotation column
Top is provided with wedge shape concentrate outlet conduit, the top of this concentrate outlet conduit parcel Packed flotation column；Described water frame is
The ring-type shower water frame that endless tube surrounds, endless tube is arranged with the hole for water spraying of 3mm, and pitch of holes is 3mm；Filler upper holder and filler
Lower bracing frame is and is built-in with that the grid of 10mm is fixing to be formed.
7. the high magnesium low-grade phosphate rock column type sorting unit described in claim 5, it is characterised in that Packed flotation column post mouth straight
Footpath is 600mm；A diameter of 500mm of the sieve plate that water frame bottom is arranged, is the diameter of Packed flotation column, and this sieve plate is to post mouth
Distance be 450mm, the distance of this sieve plate to filler upper holder is 750mm；Under filler upper holder and filler bracing frame it
Between distance be 1000mm, this distance i.e. length of ripple orifice plate；Under filler, bracing frame bottom arranges the sieve plate that haves three layers, and wherein, fills out
The lower bracing frame of material is 200mm with the spacing of ground floor sieve plate, and ground floor sieve plate is 700mm with the spacing of second layer sieve plate, second
Layer sieve plate is 600mm with the spacing of third layer sieve plate, and the spacing of third layer sieve plate baffle plate is 250mm.
8. the high magnesium low-grade phosphate rock column type sorting unit described in claim 5, it is characterised in that under two symmetrical feeding mouths
Being provided with rotational flow inlet baffle plate, two symmetrical feeding mouths are for tilting upward 15 °；Two symmetrical feeding mouth distance filling flotation
Column bottom 1500mm, 1400mm bottom rotational flow inlet baffle plate distance Packed flotation column.
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| CN201610748482.8A CN106269270A (en) | 2016-08-27 | 2016-08-27 | A kind of high magnesium low-grade phosphate rock column type method for separating and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043588A (en) * | 2018-01-02 | 2018-05-18 | 中国恩菲工程技术有限公司 | The system of Call Provision iron concentrate from particulate iron tailings |
| CN108452950A (en) * | 2017-06-05 | 2018-08-28 | 湖北博南科技有限公司 | The device and its beneficiation method of high-magnesium-phosphorus ore are sorted based on reducing flotation column |
| CN110639708A (en) * | 2019-10-09 | 2020-01-03 | 南京工业大学 | Fine apatite flotation method and system based on multi-channel ceramic membrane distributor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108452950A (en) * | 2017-06-05 | 2018-08-28 | 湖北博南科技有限公司 | The device and its beneficiation method of high-magnesium-phosphorus ore are sorted based on reducing flotation column |
| CN108043588A (en) * | 2018-01-02 | 2018-05-18 | 中国恩菲工程技术有限公司 | The system of Call Provision iron concentrate from particulate iron tailings |
| CN108043588B (en) * | 2018-01-02 | 2024-01-12 | 中国恩菲工程技术有限公司 | System for retrieve cobalt sulphur concentrate from fine particle iron tailings |
| CN110639708A (en) * | 2019-10-09 | 2020-01-03 | 南京工业大学 | Fine apatite flotation method and system based on multi-channel ceramic membrane distributor |
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