CN108855629A - The method for floating of microfine diaspore - Google Patents
The method for floating of microfine diaspore Download PDFInfo
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- CN108855629A CN108855629A CN201810548401.9A CN201810548401A CN108855629A CN 108855629 A CN108855629 A CN 108855629A CN 201810548401 A CN201810548401 A CN 201810548401A CN 108855629 A CN108855629 A CN 108855629A
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- Prior art keywords
- cavitation
- ore pulp
- diaspore
- microfine
- 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
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- 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
-
- 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
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- 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
-
- 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 invention discloses a kind of method for floating of microfine diaspore, include the following steps：1) water, pH adjusting agent and collecting agent are sequentially added into microfine diaspore mineral obtains primary ore pulp after stirring is sized mixing；2) primary ore pulp is transferred in jet-loop cavitation system and carries out cavitation process, obtain flotation pulp；3) flotation pulp is imported in flotation device and carries out flotation, obtain diaspore froth pulp.The present invention is handled one water bauxite ore pulp of microfine using jet flow cavitation.The high-speed jet formed when jet flow cavitation processing makes the cover of target minreal removing sludge, promotes the direct effect of floating agent and mineral grain.Jet flow cavitation processing makes hydrophobization mineral surfaces directly generate nano bubble, and the mutually micro-nano bubble of body is generated in ore pulp solution, Hydrophobic aggregation between promotion microfine particle, while also promoting collecting of the flotation bubble to mineral grain, improve the flotation efficiency of microfine diaspore.
Description
Technical field
The invention belongs to ore dressing fields, and in particular to a kind of method for floating of microfine diaspore.
Background technique
The flotation recovery of micro-size fraction mineral is the important scientific problems that modern mineral manufacture field faces.As mineral products provide
Source is exploited and is applied on a large scale, poor, and carefully, matrix preparation proportion constantly increases, and fine particles flotation technical research more causes weight
Depending on.Fine fraction of ore amount of substance is small, and momentum is low to be caused small with the collision sticking probability of bubble, keeps its flotation rate and the rate of recovery low,
And particulate mixes and reduces concentrate grade due to causing；Meanwhile fine-grained minerals large specific surface area, the non-selective suction to medicament
It is attached serious, cause reagent consumption amount big, concentrate grade reduces.
China's bauxite rich reserves, but 80% be middle-low grade diaspore type bauxite, cannot directly adopt
Aluminium oxide is produced with the bayer process of economical and efficient, needs to improve bauxite aluminium-silicon ratio by pre-desiliconizing.With aluminum i ndustry
High speed development, high-quality bauxite resource are sharply reduced, and flotation desilication becomes more and more as most effective, economic method for desilication
It is important.But due to the easy argillization of Bauxite Ore, grinding process is up to 30% or more in micro-size fraction (- 38 μm) mineral content.With
The reduction of granularity, mineral grain momentum in ore pulp it is small, it is difficult to overcome the energy barrier between ore particle and bubble, touched with bubble
It hits and sticks.Separate Fine-grained Minerals specific grain surface product is big, and surface can be high, can be by inhaling with target minreal, gangue mineral, medicament
Attached to reduce own face energy, so as to cause concentrate deterioration, floating agent dosage greatly increases.
Summary of the invention
The object of the present invention is to provide a kind of method for floating of microfine diaspore, solve microfine diaspore
Floating agent amount is big in floatation process, the low defect of flotation efficiency.
The method for floating of this microfine diaspore of the present invention, includes the following steps：
1) water, pH adjusting agent and collecting agent is sequentially added into microfine diaspore mineral to obtain after stirring is sized mixing
Primary ore pulp；
2) the primary ore pulp in step 1) is transferred in jet-loop cavitation system and carries out cavitation process, obtained containing micro-nano
The flotation pulp of rice bubble；
3) flotation pulp for containing micro-nano bubble in step 2) is imported in flotation device and carries out flotation, obtain a hydraulic aluminium
Stone product.
In the step 1), the liquid-solid ratio 10 of microfine diaspore mineral and the mixed primary pulp density of water~
20；Collecting agent is enuatrol, and the concentration in primary ore pulp is 5 × 10-5M~1 × 10-4M；PH adjusting agent is sodium hydroxide,
The pH for adjusting primary ore pulp is 9.9~10.1.
In the step 2), jet-loop cavitation system includes ore pulp memory, peristaltic pump, cavitation pipe, fluid flowmeter
Composition；The liquid inlet of ore pulp memory lower end liquid outlet and peristaltic pump by conduit connect, the liquid outlet of peristaltic pump with
Fluid flowmeter be connected, the another port of fluid flowmeter is connected with the liquid inlet of cavitation pipe, the liquid outlet of cavitation pipe and
The upper end entrance of ore pulp memory is connected；Fluid is delivered to cavitation pipe from ore pulp memory by peristaltic pump, is carried out through cavitation pipe empty
After change processing, it is back to ore pulp memory.
The jet-loop cavitation system further includes gas flowmeter, and gas flowmeter is loaded on cavitation pipe top.
The cavitation pipe is made of fluid jet contraction chamber, negative pressure cabin, fluid jet extended cavity, gas access, described
Fluid jet contraction chamber and fluid jet extended cavity contraction mouth end respectively with negative pressure cabin connection, be provided with gas above negative pressure cabin
Body entrance, gas access are connected with gas flowmeter；Primary ore pulp is delivered to the stream of cavitation pipe by peristaltic pump from cavitation reactor
Body contraction of jet chamber forms jet stream, and the flow velocity of fluid improves, and pressure reduces, and generates cavitation effect, while it is negative to form negative pressure cabin
Pressure, sucks air from gas access, mixes with jet stream ore pulp, a large amount of micro-nano bubbles is generated in fluid jet extended cavity, so
After return to ore pulp memory.
In the step 2), cavitation process the specific steps are:Primary ore pulp in step 1) is transferred to ore pulp and is stored
After in device, start peristaltic pump, to lead to full of primary ore pulp by the rotational speed regulation of peristaltic pump to the lower operating of high speed in system pipeline
The fluid for crossing cavitation pipe generates jet stream in contraction chamber, generates cavitation effect, and the negative pressure cabin of cavitation pipe is made to form negative pressure, from gas
Body entrance sucks air, and with jet mixing, a large amount of micro-nano bubbles are generated in fluid jet extended cavity, return to ore pulp storage
Device；Ore pulp obtains flotation pulp after recycling cavitation process.
Revolving speed is 300rpm~450rpm when the peristaltic pump runs at high speed, and the flow velocity of corresponding cavitation pipe is 13.5m/s
~18.3m/s, circulation cavitation process time are not less than 3min.
The principle of the present invention：Floating agent is first added before cavitation process in the present invention, on the one hand floating agent can adsorb
In mineral surfaces, regulate and control mineral surfaces hydrophobicity；The presence of medicament reduces ore pulp system solution surface tension simultaneously, enhances
The stability for the micro-nano bubble that cavitation processes generate, enables the micro-nano bubble of cavitation to be attached to hydrophobization mineral surfaces,
Even if under high turbulent-flow conditions, still thering is part to be retained.After cavitation, ore pulp system solution and mineral surfaces are remained with largely
Micro-nano bubble.In floatation process, these micro-nano bubbles by way of tuberculosis and bridging in conjunction with fine-particle minerals (such as
Shown in Fig. 2), strengthen agglomerate between fine mineral particle, enhances the interaction between Separate Fine-grained Minerals particle and flotation bubble, while energy
Collision probability improves the flotation efficiency of diaspore to promote the collecting of fine-particle minerals enough between increase bubble particles.
Beneficial effects of the present invention：The present invention is handled one water bauxite ore pulp of microfine using jet flow cavitation.1)
Before cavitation process, it being first added floating agent, controllable mineral surfaces hydrophobicity reduces the surface tension of ore pulp solution, thus
When cavitation process, the stability of micro-nano bubble can be enhanced.2) high-speed jet formed when jet flow cavitation is handled keeps target minreal de-
Except the cover of sludge, promote the direct effect of floating agent and mineral grain.3) jet flow cavitation processing makes hydrophobization mineral surfaces
Nano bubble is directly generated, and generates the mutually micro-nano bubble of body in ore pulp solution, promotes Hydrophobic aggregation between microfine particle, together
When also promote collecting of the flotation bubble to mineral grain, improve the flotation efficiency of microfine diaspore.
Detailed description of the invention
Process flow chart Fig. 1 of the invention.
In Fig. 2 cavitation and floatation process, the schematic diagram of micro-nano bubble, mineral grain and flotation bubble interaction.
Process equipment figure Fig. 3 of the invention；
Wherein：1 primary mineral slurry mixer, 2 water check valves, 3 peristaltic pumps, 4 fluid flowmeters, 5 cavitation pipes, 6 gas flowmeters,
7 ore pulp memories, 8 hanging trough flotators.
The enlarged drawing of Fig. 4 cavitation pipe of the present invention：5-1 fluid jet contraction chamber, 5-2 fluid jet extended cavity, 5-3 negative pressure
Storehouse, the gas access 5-4.
Specific embodiment
Equipment (as shown in Figure 3) in embodiment includes blender 1, water check valve 2, peristaltic pump 3, fluid flowmeter 4, cavitation
Pipe 5, gas flowmeter 6, ore pulp memory 7, hanging trough flotator 8.Wherein blender 1 is used to prepare primary ore pulp；Peristaltic pump 3,
Fluid flowmeter 4, cavitation pipe 5, gas flowmeter 6 and ore pulp memory 7 constitute circulating jet cavitation system, at cavitation
Reason；Hanging trough flotator 8 is used for flotation.
Blender 1 is topmost connected with ore pulp memory 7, and water check valve 2 is equipped between blender 1 and ore pulp memory 1；
The outlet of ore pulp memory lower end 1 is connect with the liquid inlet of peristaltic pump 3 by conduit, between ore pulp memory 7 and peristaltic pump 3
It is equipped with water check valve 2, the liquid outlet of peristaltic pump is connected with fluid flowmeter, the another port of fluid flowmeter 4 and cavitation pipe 5
Liquid inlet be connected, 5 top of cavitation pipe is equipped with gas flowmeter 6, the upper end of the liquid outlet of cavitation pipe 5 and ore pulp memory
Entrance is connected；Another outlet of 7 lower end of ore pulp memory is connected with hanging trough flotator 8, ore pulp memory 7 and hanging trough flotator 8
Between be equipped with water check valve 2.
The cavitation pipe (as shown in Figure 4) is by fluid jet contraction chamber 5-1, negative pressure cabin 5-3 and fluid jet extended cavity
The contraction mouth end of 5-2 composition, the fluid jet contraction chamber 5-1 and fluid jet extended cavity 5-2 join with negative pressure cabin 5-3 respectively
It is logical, gas access 5-4 is provided with above negative pressure cabin 5-3, fluid enters from fluid jet contraction chamber.
Embodiment 1
Preparatory compound concentration is 5 × 10-5The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.It opens
Primary ore pulp is transferred in ore pulp memory 7 by water check valve 2.
The water check valve 2 between ore pulp memory 7 and peristaltic pump 3 is opened, starting peristaltic pump 3 stores primary ore pulp from ore pulp
Device 7 is sent to cavitation pipe 5, and by the rotational speed regulation of peristaltic pump 3 to 300rpm, flow velocity shown in fluid flowmeter 4 is 0.9m/s at this time, empty
The effluxvelocity for changing pipe jet contraction chamber 5-1 is 13.5m/s, and cavitation effect is weaker, and micro-nano bubbles volume is few, and ore pulp is through cavitation
Pipe starts next round circulation after being back to ore pulp memory 7, after being continuously circulated Cavitation 3min, closes water check valve 2 and peristaltic pump
3, Cavitation terminates, and obtains flotation pulp.
The water check valve 2 between ore pulp memory 7 and hanging trough flotator 8 is opened, flotation pulp is transferred in flotation device, is floated
Select 5min.After flotation, flotation froth is collected, is filtered, dried, weighing obtains diaspore froth pulp.
The present embodiment diaspore froth pulp flotation recovery rate is 76.895%.
Comparative example 1
Preparatory compound concentration is 5 × 10-5The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.Without
The processing of the cavitation circulatory system is crossed, directly transfer ore pulp is into flotation device, flotation 5min.After flotation, flotation froth is collected, into
Row filtering, is dried, and weighing obtains diaspore froth pulp.In this comparative example, diaspore froth pulp flotation recovery
Rate is 70.8%.
Compared with comparative example 1, after cavitation process, diaspore froth pulp flotation recovery rate is improved
6.095%, illustrate that jet flow cavitation handles ore pulp, the rate of recovery of diaspore can be improved.
Embodiment 2
Preparatory compound concentration is 5 × 10-5The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.It opens
Primary ore pulp is transferred in ore pulp memory by water check valve 2.
The water check valve 2 between ore pulp memory 7 and peristaltic pump 3 is opened, starting peristaltic pump 3 stores primary ore pulp from ore pulp
Device 7 is sent to cavitation pipe 5, and by the rotational speed regulation of peristaltic pump 3 to 450rpm, flow velocity shown in fluid flowmeter 4 is 1.4m/s at this time, empty
The effluxvelocity for changing pipe jet contraction chamber 5-1 is 18.3m/s, and cavitation effect is strong, generates micro-nano bubble, ore pulp is through cavitation pipe 5
Start next round circulation after being back to ore pulp memory 7, after being continuously circulated Cavitation 3min, closes water check valve and peristaltic pump, it is empty
Changing reaction terminates, and obtains flotation pulp.
The water check valve 2 between ore pulp memory 7 and hanging trough flotator 8 is opened, flotation pulp is transferred in flotation device, is floated
Select 5min.After flotation, flotation froth is collected, is filtered, dried, weighing obtains diaspore froth pulp.
Diaspore froth pulp flotation recovery rate is 84.194% in the present embodiment.
Compared with comparative example 1, diaspore froth pulp flotation recovery rate improves 13.394%.
Compared with Example 1, diaspore froth pulp flotation recovery rate improves 7.299%, it follows that cavitation
Effluxvelocity is bigger, and the micro-nano bubble of generation is more, and flotation recovery rate promotes amplitude and is more obvious.
Embodiment 3
Preparatory compound concentration is 1 × 10-4The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.It opens
Primary ore pulp is transferred in ore pulp memory 7 by water check valve 2.
The water check valve 2 between ore pulp memory 7 and peristaltic pump 3 is opened, starting peristaltic pump 3 stores primary ore pulp from ore pulp
Device 7 is sent to cavitation pipe 5, and by the rotational speed regulation of peristaltic pump 3 to 450rpm, flow velocity shown in fluid flowmeter 4 is 1.4m/s at this time, empty
The effluxvelocity for changing pipe jet contraction chamber 5-1 is 18.3m/s, and cavitation effect is strong, generates micro-nano bubble, ore pulp is through cavitation pipe 5
Start next round circulation after being back to ore pulp memory 7, after being continuously circulated Cavitation 3min, close water check valve 2 and peristaltic pump 3,
Cavitation terminates, and obtains flotation pulp.
The water check valve between ore pulp memory 7 and hanging trough flotator 8 is opened, flotation pulp is transferred in flotation device, is floated
Select 5min.After flotation, flotation froth is collected, is filtered, dried, weighing obtains diaspore froth pulp.
Diaspore concentrate froth pulp flotation recovery rate is 88.734% in the present embodiment.
Comparative example 2
Preparatory compound concentration is 1 × 10-4The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.Without
The processing of the cavitation circulatory system is crossed, directly transfer ore pulp is into flotation device, flotation 5min.After flotation, flotation froth is collected, into
Row filtering, is dried, and weighing obtains diaspore froth pulp.In this comparative example, diaspore froth pulp flotation recovery
Rate is 85.735%.
Compared with comparative example 2, diaspore concentrate froth pulp flotation recovery rate improves only 3% in embodiment 3, this
When illustrating that concentrations of sodium oleate is higher, cavitation jet, which handles ore pulp, weakens the strengthening effect of diaspore flotation recovery rate.
Embodiment 4
Preparatory compound concentration is 5 × 10-5The sodium oleate solution 950ml of M, and utilize sodium hydrate regulator solution pH to 9.9
~10.1,50g microfine diaspore mineral are subsequently to added into, and stir 3min using blender, obtain primary ore pulp.It opens
Primary ore pulp is transferred in ore pulp memory by water check valve 2.
The water check valve 2 between ore pulp memory 7 and peristaltic pump 3 is opened, starting peristaltic pump 3 stores primary ore pulp from ore pulp
Device 7 is delivered to cavitation pipe 5, and by the rotational speed regulation of peristaltic pump 3 to 450rpm, the flow velocity of fluid flowmeter is 1.4m/s at this time；It is empty
The effluxvelocity for changing pipe jet contraction chamber is 18.3m/s, forms negative pressure in negative pressure cabin, sucks air, air certainly from gas access
It is mixed in fluid jet contraction chamber with jet stream, generates a large amount of micro-nano bubble, ore pulp is back to ore pulp memory through cavitation pipe 5
Start next round circulation after 7, after being continuously circulated Cavitation 3min, closes water check valve 2 and peristaltic pump 3, Cavitation terminates, and obtains
To flotation pulp.
The water check valve 2 between ore pulp memory 7 and hanging trough flotator 8 is opened, flotation pulp is transferred in flotation device, is floated
Select 5min.After flotation, flotation froth is collected, is filtered, dried, weighing obtains diaspore froth pulp.
Diaspore froth pulp flotation recovery rate is 92.609% in the present embodiment.
Compared with comparative example 1, diaspore froth pulp flotation recovery rate improves 21.809% in the present embodiment；With
Embodiment 2 is compared, and diaspore froth pulp flotation recovery rate improves 8.415% in the present embodiment, illustrates cavitation process
When, diaspore flotation recovery can significantly be strengthened by introducing air from cavitation pipe.
Claims (10)
1. a kind of method for floating of microfine diaspore, includes the following steps：
1) water, pH adjusting agent and collecting agent are sequentially added into microfine diaspore mineral obtains primary after stirring is sized mixing
Ore pulp；
2) the primary ore pulp in step 1) is transferred in jet-loop cavitation system and carries out cavitation process, obtained containing micro-nano gas
The flotation pulp of bubble；
3) flotation pulp for containing micro-nano bubble in step 2) is imported in flotation device and carries out flotation, obtain diaspore production
Product.
2. the method for floating of microfine diaspore according to claim 1, which is characterized in that in the step 1),
The liquid-solid ratio 10~20 of water and microfine diaspore mineral.
3. the method for floating of microfine diaspore according to claim 1 or 2, which is characterized in that the step 1)
In, collecting agent is enuatrol, and the concentration in primary ore pulp is 5 × 10-5M~1 × 10-4M。
4. the method for floating of microfine diaspore according to claim 1 or 2, which is characterized in that the step 1)
In, pH adjusting agent is sodium hydroxide, and the pH for adjusting primary ore pulp is 9.9~10.1.
5. the method for floating of microfine diaspore according to claim 1, which is characterized in that in the step 2),
Jet-loop cavitation system includes ore pulp memory, peristaltic pump, cavitation pipe and fluid flowmeter；Ore pulp memory lower end liquid discharge
Mouth is connect with the liquid inlet of peristaltic pump by conduit, and the liquid outlet of peristaltic pump is connected with fluid flowmeter, fluid flowmeter
Another port be connected with the liquid inlet of cavitation pipe, the liquid outlet of cavitation pipe is connected with the upper end entrance of ore pulp memory；
Fluid is delivered to cavitation pipe from ore pulp memory by peristaltic pump, after cavitation pipe carries out cavitation process, is back to ore pulp memory.
6. the method for floating of microfine diaspore according to claim 5, which is characterized in that the jet-loop
Cavitation system further includes gas flowmeter, and gas flowmeter is located at the top of cavitation pipe.
7. the method for floating of microfine diaspore according to claim 5, which is characterized in that the cavitation pipe by
Fluid jet contraction chamber, negative pressure cabin, fluid jet extended cavity, gas access composition, the fluid jet contraction chamber and fluid
Respectively with negative pressure cabin connection, negative pressure cabin top is provided with gas access, gas access and gas at the contraction mouth end of jet stream extended cavity
Flowmeter is connected；Primary ore pulp is delivered to the fluid jet contraction chamber of cavitation pipe by peristaltic pump from cavitation reactor, forms jet stream,
The flow velocity of fluid improves, and pressure reduces, and generates cavitation effect, while negative pressure cabin being made to form negative pressure, sucks air from gas access,
It is mixed with jet stream ore pulp, a large amount of micro-nano bubbles is generated in fluid jet extended cavity, are then return to ore pulp memory.
8. the method for floating of microfine diaspore according to claim 5, which is characterized in that cavitation process it is specific
Step is:After primary ore pulp is transferred into ore pulp memory, start peristaltic pump, it, will to be full of primary ore pulp in system pipeline
The rotational speed regulation of peristaltic pump generates cavitation effect by the fluid of cavitation pipe in contraction chamber generation jet stream to the lower operating of high speed, and
So that the negative pressure cabin of cavitation pipe forms negative pressure, produced in fluid jet extended cavity from gas access sucking air with jet mixing
Raw a large amount of micro-nano bubbles, return to ore pulp memory；Ore pulp obtains flotation pulp after recycling cavitation process.
9. the method for floating of microfine diaspore according to claim 8, which is characterized in that the height of the peristaltic pump
The revolving speed of speed operating is 300rpm~450rpm, and the flow velocity of corresponding cavitation pipe is 13.5m/s~18.3m/s.
10. the method for floating of microfine diaspore according to claim 8, which is characterized in that the circulation cavitation
The time is handled not less than 3min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112642590A (en) * | 2020-12-30 | 2021-04-13 | 宁夏嘉峰化工有限公司 | Hydrodynamic cavitation enhanced cyanamide waste residue flotation separation method |
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| CN102294304A (en) * | 2011-06-21 | 2011-12-28 | 中国铝业股份有限公司 | Method for floatation of bauxite |
| CN102747233A (en) * | 2012-07-18 | 2012-10-24 | 昆明冶金研究院 | Sulfur concentrate recovery process in pre-cavitation and sulfur flotation of zinc oxidative pressure leaching residue |
| CN103408212A (en) * | 2013-08-28 | 2013-11-27 | 范鹏辉 | Supercritical dissolved air cavitation equipment and method for reinforcing sludge reduction by adopting same |
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| CN103980968A (en) * | 2014-05-28 | 2014-08-13 | 华东理工大学 | Oil-containing sludge coal slurry and preparation method thereof |
| CN105964409A (en) * | 2016-05-19 | 2016-09-28 | 康洪强 | Method for treating fine slag of coal gasification device |
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| CN112642590B (en) * | 2020-12-30 | 2022-06-03 | 宁夏嘉峰化工有限公司 | Hydrodynamic cavitation enhanced cyanamide waste residue flotation separation method |
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