CN102921569B - Two-phase flow cyclone - Google Patents
Two-phase flow cyclone Download PDFInfo
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- CN102921569B CN102921569B CN201210504722.1A CN201210504722A CN102921569B CN 102921569 B CN102921569 B CN 102921569B CN 201210504722 A CN201210504722 A CN 201210504722A CN 102921569 B CN102921569 B CN 102921569B
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Abstract
The invention discloses a two-phase flow cyclone, and relates to the technical field of classified desliming. The two-phase flow cyclone comprises a cyclone without an overflow pipe and a water seal tank with a pressure classification pipe, wherein ore slurry passes through a pipe to be connected with a slurry feeding pipe through a slurry pump, the slurry feeding pipe is communicated with a cylinder, and the lower part of the cylinder is a cone and the tail end of the cylinder is an underflow exit; the underflow exit is connected with a pressure classification pipe with a flange of the water sealing box with a pressure classification pipe, and an overflow external discharge pipe is positioned on the top of the cylinder; the pressure classification pipe with a flange, a water seal pressure gauze, the water seal tank, a main bottom hole and a water supply pipe of the water seal tank with a pressure classification pipe are positioned below the cyclone without an overflow pipe; and the pressure classification pipe with a flange is positioned on the top of the water seal tank and arranged in the water seal tank; the bottommost part of the water seal tank is the main bottom hole, and the water supply pipe is positioned at the side of the upper part of the water seal tank to which the water seal pressure gauze is connected. The two-phase flow cyclone is high in classification efficiency, and the phenomena of entrainment of coarse particles in overflow and fine particles in underflow are relieved.
Description
Technical field
The present invention relates to graded desliming technical field.
Technical background
Existing graded desliming is mainly hydrocyclone, the hydrocyclone course of work describes as shown in Figure 1, hydrocyclone is chewed 6 ' form by being played the pulp-inlet pipe 1 ' of mineral-feeding pipe effect, the outer comb 2 ' of overflow, overflow pipe 3 ', cylindrical shell 4 ', cone 5 ' and sand setting, ore pulp is by pipeline Pulp pump, pump pressure, in 0.03--0.35Mpa scope, is driven into pulp-inlet pipe and enters cylindrical shell 4 '.After ore pulp has arrived cone 5 ', be subject to the effect of cone centrifugal force, the wall that is gathered in of heavy, coarse size is chewed 6 ' direction to sand setting and is discharged as sand setting product.Proportion lighter, the assembling to fine size from overflow pipe x to axis of spindle, outside the outer comb displacer of overflow, be overflow product.Air column is there is in the hydrocyclone course of work.It is because the hydrostatic head at hydrocyclone axle center place is than the dynamic head in the hydrostatic head at wall place low twice vortex core edge that air column produces.When ore deposit stream enters pulp-inlet pipe tangent line mouth with 5 ~ 12 meter per second tangential velocities, because the hydrostatic head near hydrocyclone shaft centre line is lower, and the peripheral speed at wall place and corresponding centrifugal force are comparatively greatly, seem the kernel of ore deposit stream to tear.Now, outside air is chewed to take advantage of a situation along sand setting and is flowed in device, and define the air-flow post of tapered rising in axle center, air column produces therefrom.Therefore, hydrocyclone, except the solid, liquid two-phase stream in ore pulp, also also exists air column gas phase, and this is the most important feature of hydrocyclone, academicly claims solid, liquid, gas three-phase flow hydrocyclone.Almost a large amount of articles comprises theoretical research and has all affirmed that air column is to role in graded desliming process.It exists, and sand setting folder is thin seriously, overflow race is slightly serious and the defect that classification efficiency is low.Adopt Φ 500mm cyclone classification operation grain size analysis, there is sand setting and press from both sides thin phenomenon, sand setting product quality indicator is: (1)-38 μm of grade productive rate presss from both sides thin rate 35.09%; (2) classification efficiency E
38=67.69%.Adopt Ф 250mm cyclone classification operation grain size analysis, there is overflow and run thick phenomenon, overflow product quality indicator: (1)+38 μm of grade runs rough and careless 68.65%; (2) classification efficiency E
38=27.16%.Adopt Ф 125mm cyclone classification operation grain size analysis, there is overflow and run thick phenomenon, overflow product quality indicator is: (1)+10 μm of grade runs rough and careless 61.37%; (2) classification efficiency E
10=38.48%.
Summary of the invention
Object of the present invention is intended to the defect overcoming prior art, provides a kind of classification efficiency high, and overflow is run slightly and sand setting presss from both sides the not serious two phase flow cyclone of thin phenomenon.
Two phase flow cyclone of the present invention, form by without overflow pipe cyclone and band pressure classification pipe flashback tank, without overflow pipe cyclone knot by pulp-inlet pipe, the outer comb of overflow, cylindrical shell, cone and sand settling mouth composition, two phase flow cyclone of the present invention, form by without overflow pipe cyclone and band pressure classification pipe flashback tank, without overflow pipe cyclone knot by pulp-inlet pipe, the outer comb of overflow, cylindrical shell, cone and sand settling mouth composition, ore pulp passes through Pulp pump by pipeline, be connected with pulp-inlet pipe, pulp-inlet pipe and cylindrical shell UNICOM, the bottom of cylindrical shell is cone, end is sand settling mouth, sand settling mouth is connected with flanged (FLGD) pressure classification pipe of band pressure classification pipe flashback tank, the outer comb of overflow is positioned at the top of cylindrical shell, with flanged (FLGD) pressure classification pipe of pressure classification pipe flashback tank, water seal Pressure gauge, flashback tank, mouth of total end and filler pipe are all positioned at the below without overflow pipe cyclone, flanged (FLGD) pressure classification pipe is arranged in flashback tank top and is placed in flashback tank, the bottommost of flashback tank is mouth of total end, filler pipe is positioned at flashback tank upper side, flashback tank is connected with water seal Pressure gauge.
Described flanged (FLGD) pressure classification pipe is 1-18 root.
Two phase flow cyclone of the present invention and background technology important difference eliminate overflow pipe exactly, and propose solid-liquid two-phase flow without overflow pipe cyclone, negate not only air column role, and think that it is harmful.Ore pulp of the present invention is by pipeline Pulp pump, and pump pressure, in 0.03 ~ 0.35Mpa scope, is driven into pulp-inlet pipe and enters cylindrical shell.Ore pulp is subject to effect of centrifugal force after having arrived cone, and particle aggregation that is heavy, coarse size is discharged as sand setting product to sand settling mouth direction at wall.Light specific gravity, the particle of fine size assembles to axis of spindle, outside overflow, comb direction is discharged as overflow product, and sand setting product enters band pressure classification pipe flashback tank again, through pressure classification pipe second time pressure classification.This pressure classification plays that to reduce sand setting folder thin and improve the effects such as sand setting concentration, discharges as final sand setting product after pressure decomposes from Zong Dikou.Flanged pressure classification pipe is placed among the flashback tank of filled with water, and object cuts off outside air to chew from sand setting and enter without overflow pipe swirler passages, makes it there is not air column in device and become solid, liquid two-phase stream cyclone.Water in flashback tank is added by filler pipe, and water seal pressure is measured by water seal Pressure gauge.
Accompanying drawing explanation
Fig. 1 is prior art structural representation.
Fig. 2 is that the present invention is without overflow pipe hydrocyclone structure schematic diagram.
Fig. 3 is band pressure classification pipe flashback tank structural representation of the present invention.
Fig. 4 is overall structure schematic diagram of the present invention.
In figure, 1 '-pulp-inlet pipe, the outer comb of 2 '-overflow, 3 '-overflow pipe, 4 '-cylindrical shell, 5 '-cone, 1-pulp-inlet pipe, the outer comb of 2-overflow, 3-cylindrical shell, 4-cone, 5-sand setting are chewed; 6-flanged (FLGD) pressure classification pipe, 7-water seal Pressure gauge, 8-flashback tank, 9-total end mouth, 10-filler pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further, but be not limited to embodiment.
Embodiment 1
A kind of described two phase flow cyclone, form by without overflow pipe cyclone and band pressure classification pipe flashback tank, without overflow pipe cyclone knot by pulp-inlet pipe 1, the outer comb 2 of overflow, cylindrical shell 3, cone 4 and sand settling mouth 5 form, two phase flow cyclone of the present invention, form by without overflow pipe cyclone and band pressure classification pipe flashback tank, without overflow pipe cyclone knot by pulp-inlet pipe 1, the outer comb 2 of overflow, cylindrical shell 3, cone 4 and sand settling mouth 5 form, ore pulp passes through Pulp pump by pipeline, be connected with pulp-inlet pipe, pulp-inlet pipe 1 and cylindrical shell 3 UNICOM, the bottom of cylindrical shell 3 is cone 4, end is sand settling mouth 5, sand settling mouth 5 is connected with flanged (FLGD) pressure classification pipe 6 of band pressure classification pipe flashback tank, the outer comb of overflow is positioned at the top of cylindrical shell 3, with flanged (FLGD) pressure classification pipe 6 of pressure classification pipe flashback tank, water seal Pressure gauge 7, flashback tank 8, mouth of total end 9 and filler pipe 10 are all positioned at the below without overflow pipe cyclone, flanged (FLGD) pressure classification pipe 6 is arranged in flashback tank 8 top and is placed in flashback tank 8, the bottommost of flashback tank 8 is mouth of total end 9, filler pipe 10 is positioned at flashback tank 8 upper side, flashback tank 8 is connected with water seal Pressure gauge 7.Concrete examinations data are as follows:
Ф 200mm two phase flow cyclone
table 1
Ф 50, Ф 75mm two phase flow cyclone
table 2
two phase flow cyclone
table 3
。
Claims (1)
1. a two phase flow cyclone, it is characterized in that, form by without interior overflow pipe cyclone and band pressure classification pipe flashback tank, without interior overflow pipe cyclone by pulp-inlet pipe, the outer comb of overflow, cylindrical shell, cone and sand settling mouth composition, ore pulp passes through Pulp pump by pipeline, be connected with pulp-inlet pipe, pulp-inlet pipe and cylindrical shell UNICOM, the bottom of cylindrical shell is cone, end is sand settling mouth, sand settling mouth is connected with flanged (FLGD) pressure classification pipe of band pressure classification pipe flashback tank, the outer comb of overflow is positioned at the top of cylindrical shell, with flanged (FLGD) pressure classification pipe of pressure classification pipe flashback tank, water seal Pressure gauge, flashback tank, mouth of total end and filler pipe are all positioned at the below without overflow pipe cyclone, flanged (FLGD) pressure classification pipe is arranged in flashback tank top and is placed in flashback tank, the bottommost of flashback tank is mouth of total end, filler pipe is positioned at flashback tank upper side, flashback tank is connected with water seal Pressure gauge,
Described flanged (FLGD) pressure classification pipe is 1-18 root.
2. according to the two phase flow cyclone described in claim 1, it is characterized in that, described band pressure classification pipe flashback tank is connected with filler pipe.
3. according to the two phase flow cyclone described in claim 1, it is characterized in that, the ore pulp that described pulp-inlet pipe enters is pumped into by pipeline Pulp pump, and pump pressure is at 0.03-0.35Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210504722.1A CN102921569B (en) | 2012-12-03 | 2012-12-03 | Two-phase flow cyclone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210504722.1A CN102921569B (en) | 2012-12-03 | 2012-12-03 | Two-phase flow cyclone |
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| Publication Number | Publication Date |
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| CN102921569A CN102921569A (en) | 2013-02-13 |
| CN102921569B true CN102921569B (en) | 2015-03-18 |
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| CN201210504722.1A Active CN102921569B (en) | 2012-12-03 | 2012-12-03 | Two-phase flow cyclone |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949356A (en) * | 2014-05-19 | 2014-07-30 | 云南磷化集团有限公司 | Tube-cone connected body hydrocyclone without traditional overflow pipe |
| CN104624408B (en) * | 2015-03-02 | 2017-04-19 | 云南磷化集团有限公司 | Method for producing powdery phosphate concentrate by two-segment hydrocyclone open circuit flow |
| CN104624407B (en) * | 2015-03-02 | 2017-08-29 | 云南磷化集团有限公司 | Two sections of cyclone open circuit flow production powdered concentrated phosphate equipment |
| CN105396705A (en) * | 2015-12-11 | 2016-03-16 | 云南磷化集团有限公司 | Equal-terminal-velocity-free hydrocyclone |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147044Y (en) * | 1993-02-27 | 1993-11-24 | 昆明冶金研究所 | Water sealing cyclone |
| US5961701A (en) * | 1997-03-24 | 1999-10-05 | Vision Almet Limited | Moisture separator for digester gases and landfill gases and raw natural gases |
| CN2590660Y (en) * | 2002-12-20 | 2003-12-10 | 昆明冶金研究院 | Water-sealed swirler |
| CN101028614A (en) * | 2006-05-09 | 2007-09-05 | 西南石油大学 | Vertical dynamic cyclone device |
| CN202909834U (en) * | 2012-12-03 | 2013-05-01 | 云南磷化集团有限公司 | Two-phase-flow whirlcone |
-
2012
- 2012-12-03 CN CN201210504722.1A patent/CN102921569B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147044Y (en) * | 1993-02-27 | 1993-11-24 | 昆明冶金研究所 | Water sealing cyclone |
| US5961701A (en) * | 1997-03-24 | 1999-10-05 | Vision Almet Limited | Moisture separator for digester gases and landfill gases and raw natural gases |
| CN2590660Y (en) * | 2002-12-20 | 2003-12-10 | 昆明冶金研究院 | Water-sealed swirler |
| CN101028614A (en) * | 2006-05-09 | 2007-09-05 | 西南石油大学 | Vertical dynamic cyclone device |
| CN202909834U (en) * | 2012-12-03 | 2013-05-01 | 云南磷化集团有限公司 | Two-phase-flow whirlcone |
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| CN102921569A (en) | 2013-02-13 |
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