CN104624407B - Two sections of cyclone open circuit flow production powdered concentrated phosphate equipment - Google Patents
Two sections of cyclone open circuit flow production powdered concentrated phosphate equipment Download PDFInfo
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Abstract
The present invention relates to two sections of cyclone open circuit flow production powdered concentrated phosphate equipment, belong to mill water power cyclone.Its equipment is main by first paragraph three-phase flow hydrocyclone, second segment two phase flow cyclone, pipeline and mortar pump are constituted after being connected with each other, wherein 1000 ~ 0 μm of grade miberal powders are set to+38 μm of grade-classification points of first paragraph, first paragraph is solid using a diameter of Ф 350mm, liquid, gas three-phase flow hydrocyclone carries out separating treatment, the fine grained overflow obtained after handling separation through first paragraph three-phase flow hydrocyclone is by being pumped into a diameter of Φ 75mm two-phase cyclones of second segment after mortar pump, second segment ± 10 μm grade desliming point, second segment is solid using a diameter of Ф 75mm, liquid two-phase cyclone carries out separating treatment.
Description
Technical field
The present invention relates to two sections of cyclone open circuit flow production powdered concentrated phosphate equipment, belong to mill water power cyclone.
Background technology
Existing 1000 ~ 0 μm of grades of mid-low grade collophanite ore are using three sections of hydrocyclone open circuit flow production powder phosphorus essences
One section of Ф 500 of method, the two sections of Ф 250 and three sections of Ф 125mm hydrocyclones of ore deposit, this method applied 2013 from 2005
Through having 8 years, production practices prove there is following tripartite's planar defect.
1st, hydrocyclone bad adaptability
First introduce a technical term：Deng drop particle or wait drop phenomenon.In same medium, density, granularity and shape are not
Same particle under given conditions, can have identical terminal velocity, such correspondence particle is referred to as to wait drop particle, wherein close
The fineness ratio of the small particle of degree and the big particle of density is referred to as ratio of equilibrium settling velocity.Such as density 2.65g/cm3, 74 μm of particle diameter quartz with
The g/cm of density 6.93, 38 μm of cassiterites of particle diameter there is identical terminal velocity, be then classified as one-level 74 ~ 38 μm.It is former according to this
Reason can mark off 1000 ~ 74,74 ~ 38,38 ~ 19,19 ~ 10,10 as the fine ore stone of 1000 ~ 0 μm of wide grades of mid-low grade collophanite ore
~ 5 and -5 μm of six narrow grades.This central 74,38,19 μm be classification point, 19 ~ 10 and 10 ~ 5 μm are desliming point, altogether three points
Level point and two desliming points.It is exactly to have to wait according to non-ferrous metal mineral to drop phenomenon to grade that Jinning County mid-low grade collophanite ore, which cleans factory,
Divided, there is provided 74,38,19 μm of three classification points, be not provided with desliming point, referred to as three sections cyclones open circuit flows productions
The method of powdered concentrated phosphate, referred to as " three extractions of root ".So-called bad adaptability refers to each grade grade during hydrocyclone design
Content and each grain size content in actual production are inconsistent, when having a greater change, will directly influence the hydraulic cyclone of design
The need for device structural parameters are departing from produce reality hydrocyclone structural parameters.Such as 2005 1000 ~ 74 μm of grain size contents
For 36%, 14% is dropped within 2013, the Ф 500mm hydrocyclones operating efficiency that this grade is used also drops to 40% from 53%.
Result be in addition to this operation is by large effect, two sections, three sections of hydrocyclones also receive very big influence.
2nd, it is shorter that axiality is poor, long measure is bored in separation
Ф 500, Ф 250 and Ф 125mm hydrocyclones cylinder 7 are to use the connector drum of flange 8 and cone with cone 9,
Axiality is tightened after being positioned by flange bolt, therefore, and hydrocyclone axiality cannot be guaranteed, according to surveying and determination Ф 500mm
Hydrocyclone is not coaxially 15mm, and Ф 250mm hydrocyclones are not coaxially 11mm, and Ф 125mm hydrocyclones are not coaxial
For 9mm.Due to hydrocyclone, coaxially value is so big, directly influences hydrocyclone overflow pipe not coaxial with sand settling mouth
Angle value produces severe deviations.Theory points out that axiality is the lifeline of hydrocyclone, and two lifelines should be overlapped together, can
This point is not all accomplished by manufacture hydrocyclone manufacturer in practice.
Ф 500, Ф 250 and Ф 125mm hydrocyclone design features, cylinder 7 and cone 9 are sole body, hydraulic cyclone
Device classification process is completed in cylinder and cone.Cylinder is pre- classification, and cone is in addition to classification, it is often more important that sand setting product
With the separation of overflow product.Its position refers to water in lower cone and the segment length unit of sand settling mouth interface one, this segment length unit
The contour stealth of power cyclone is transformed into the Disengagement zone of inward eddy.In this Disengagement zone, due in hydrocyclone 3D velocity field
Axial velocity row so far Disengagement zone when, downward velocity there occurs increase drastically, cause substantial amounts of liquid stream entrainment of
The proportion of classification is small and particle carefully produces flow direction deflection, is moved to towards overfall direction outside displacer, as overflow product.And
Sand setting product continues to be emitted into sand setting product along a small amount of liquid stream of contour stealth entrainment from sand settling mouth.Drop what phenomenon was designed by waiting
Cone is conceptual cone, in other words, does not carry out reference cone to cone, and part is classfied cone, part be separation cone, system and
If be cone.According to the observation for being transformed into inward turning separation to contour stealth and to polishing scratch measured data, Ф 500, the and of Ф 250
Ф 125mm hydrocyclone separation length units are respectively L1215、L1185 and L1170mm, accounts for always bore long H1276mm's respectively
The 29.4% of 16.8%, H630mm and the 32.2% of H528mm.As shown by data separation length unit is shorter, and deconditioning difference is outer, separation
Intensity is weaker.
3rd, exist in hydrocyclone structure and remove sand settling mouth blocking difficult problem：Because sand settling mouth is solid using flange bolt
Tightly, blocked in cone once occurring sand settling mouth it is necessary to timely block clearing.It is come clear and coherent, when sand settling mouth is by slightly larger first with water
Particles plug, just need to unload four screws, and screw troublesome thing of having got rusty is comed one after another, in practical operation, small dimension Ф 125mm
The blocking of hydrocyclone is almost all occurring all the time, because its sand settling mouth size only has 12 ~ Ф of Ф 14mm, Ф 12mm
Preferably, Ф 14mm technical indicators are just poor much for technical indicator.It would rather cast out technology in order to reduce plugging machine meeting, in operation to refer to
Mark, and larger sand settling mouth is used, this is that operator is most ready dry thing, but blocks and still have.If hydraulic cyclone
Device specification is smaller again, such as Ф 75 or Ф 50mm, and sand settling mouth footpath is well imagined with regard to public affairs smaller, respectively Ф 7 and Ф 5mm, solves
The blocking of sand settling mouth is not general considerations, but world-class problem.Therefore, it is necessary to design efficient and convenient block clearing plug by every possible means
Structure type.
It is to be divided into+74,74 ~ 38,38 ~ 19,19 ~ 10,10 ~ 5 and -5 μ by grade drop phenomenon that former three-stage method grade, which is divided,
Six narrow grades of m, there is provided+74 ,+38 and+19 μm of three classification points, are not provided with+10 and -5 μm of two desliming points.+ 74 μm points
The grain size content change of level point quite greatly, causes operating efficiency fluctuation quite big, causes very big to+38 and+19 μm of classification points
Pressure and influence are the reason for " three extractions of root " production procedure are unstable.It is not provided with+10 μm of grade desliming points and sets+74 μm minutes
Level point causes that " three extractions of root " concentrate yield is relatively low and the higher main cause of tailings grade.Namely press and wait drop phenomenon to divide
Where the problem of grade.
The content of the invention
Present invention aims at by existing three sections of cyclones open circuit flow production powdered concentrated phosphate equipment deficiency, there is provided one kind two
Section cyclone open circuit flow production powdered concentrated phosphate equipment.
A kind of two sections of cyclones open circuit flow of the invention produces powdered concentrated phosphate is with equipment：Equipment is main by first paragraph three-phase
Flow after hydrocyclone, second segment two phase flow cyclone, pipeline and mortar pump are connected with each other and constitute, wherein to 1000 ~ 0 μm of grades
Miberal powder is set to+38 μm of grade-classification points of first paragraph, and first paragraph uses a diameter of Ф 350mm solid, liquid, gas three-phase flow hydraulic cyclone
Device carries out separating treatment, after the fine grained overflow obtained after handling separation through first paragraph three-phase flow hydrocyclone is by mortar pump
It is pumped into a diameter of Φ 75mm two-phase cyclones of second segment（7）, second segment ± 10 μm grade desliming point, second segment is using a diameter of Ф
75mm solid, liquid two-phase streams cyclone carries out separating treatment.
After mid-low grade collophanite ore raw ore raw material is classified through spiral classifier, allows and be classified as 1000 ~ 0 μm of grade fine ore entrance
Tank diameter（1）, mortar pump（14）Fine ore stock pump is entered into a diameter of Φ 350mm solid, liquid, gas three-phase flow hydrocyclone of first paragraph
（13）In, three-phase flow hydrocyclone（13）For separating+38 μm of grades, three-phase flow hydrocyclone（13）Obtained in separation process
The coarse fraction sand setting obtained enters distributor box by pipeline（11）, the fine grained overflow of acquisition sieves through pipeline（4）Enter first paragraph afterwards
Overflow tank diameter（5）In；Mortar pump（10）Again by first paragraph overflow tank diameter（5）In fine grained sieved through piping（6）Pump afterwards
Enter a diameter of Φ 75mm two-phase cyclones of second segment（7）Charging aperture, two-phase cyclone（7）For separating+10 μm of grades, two-phase rotation
Flow device（7）Coarse fraction sand setting after separation flows into distributor box again（11）, two-phase cyclone（7）Fine grained overflow after separation enters
Tail-box, into distributor box（11）Sand setting be evenly distributed to band filter（12）Upper to be filtered, the ore deposit after filtering is
Concentrate.
A diameter of Ф 350mm solid, liquid, gas three-phase flow hydrocyclone is to bore disjunctor axiality cone by the cylinder on top
（8B）, middle part classification cone（10B）With the Disjoint Cone of bottom（12B）Sequentially connection forms a whole after being mutually communicated,
The cylinder cone disjunctor axiality cone of its middle and upper part（8）With the classification cone at middle part（10B）Pass through adpting flange（9B）Connection, middle part
Classification cone（10B）With the Disjoint Cone of bottom（12B）Pass through jointing clip（11B）Connection, Disjoint Cone（12）Bottom leads to
Cross jointing clip（13B）It is connected to desilting tip（14B）；Disjunctor axiality cone is bored in cylinder（8B）The sidepiece of cylinder part is provided with into slurry
Mouthful（3B）, stock inlet（3B）With ore slurry pipeline（1B）Pass through pulp-inlet pipe adpting flange（2B）Connection, cylinder cone disjunctor axiality cone
（8）The top of cylinder part passes through gland（5B）It is connected to an outer overflow pipe（6B）.
The cylinder bores disjunctor axiality cone（8B）Middle length L1Account for and always bore the 37% of long H, the sufficiently long long L of cone1It could protect
Card controls the axiality of Ф 350mm solid, liquid, gas three-phase flow hydrocyclone middle cylinder bodies and cone, in other words, solves three-phase
Flow hydrocyclone axiality；Disjoint Cone（12B）Bore long L2Account for and always bore the 18% of long H, be classified cone（10B）Circulated for outward turning
Become inward eddy silt particle Disengagement zone part, be classified cone（10B）The 14% of gross pressure desliming pipe overall length is accounted for, cone is classified（10B）Remove
Outside with grading function, axiality, sand setting product and overflow product separation function, gross pressure desliming pipe whole height have also been taken into account
Size is that cylinder bores disjunctor axiality cone（8B）Length, classification cone（10B）Length and Disjoint Cone（12B）Length three it
With.
The cylinder bores disjunctor axiality cone（8B）Using one-time cast-forming, cylinder cone disjunctor axiality cone（8B）Cone length
L1For 610mm, Disjoint Cone（12B）Bore long L2For 300mm, long H is always bored for 1650mm, cone is classified（10B）Length is 220mm,
Gross pressure desliming length of tube is the mm of 610mm+220mm+300mm=1130.
A diameter of Ф 75mm solid, liquid two-phases stream hydrocyclone is by top cylinder cone disjunctor axiality cone（6A）、
Middle part is classified cone（8A）With bottom Disjoint Cone（10A）An entirety, its middle and upper part cylinder are sequentially connected and composed after being mutually communicated
Bore disjunctor axiality cone（6A）Cone is classified with middle part（8A）Pass through jointing clip（7A）Connection, middle part classification cone（8A）With
Bottom Disjoint Cone（10A）Pass through jointing clip（9A）Connection, Disjoint Cone（10A）Bottom passes through jointing clip（11A）Connect heavy
Husky nozzle（12A）；Disjunctor axiality cone is bored in cylinder（6A）The sidepiece of cylinder part is provided with stock inlet（2A）, stock inlet（2A）With ore deposit
Slurry pipeline passes through jointing clip（1A）Connection, overflowing bent pipe（6A）Through overflow cap（5A）Afterwards disjunctor axiality cone is bored with cylinder
（6A）The top of cylinder part is connected；
Desilting tip（12A）It is socketed in pressure classification pipe（18A）It is interior, pressure classification pipe（18A）Insert inside flashback tank, water seal
Case by top flashback tank upper body（17A）With being bored under flashback tank（20A）Composition, wherein flashback tank upper body（17A）Pass through connection method
It is blue（14A）With pressure classification pipe（18A）Connection, flashback tank upper body（17A）Top is respectively provided with pressure gauge（15A）And blow-down pipe
（16A）, flashback tank upper body（17A）Sidepiece be equipped with filler pipe（19A）, bore under flashback tank（20A）Bottom is sequentially equipped with short tube
（21A）, valve（22A）With total base opening（23A）.
It is divided into cone centrifugal force field and pressure desliming pipe pressure mud again in the use Φ 75mm solid, liquid two-phase stream cyclones
Sand separation, realizes that ± 10 μm of grade silt particles are separated, wherein cone centrifugal force field bores disjunctor axiality by cylinder with two-stage desliming
Cone（6A）, desliming cone（8A）Cone is separated with silt particle（10A）Composition, according to outside most desliming function, has taken into account axiality, sand setting
The separation function of product and overflow product, cylinder cone disjunctor axiality cone（6A）With desliming cone（8A）The long h of cone1Account for and always bore long H's
46%, for accurately controlling two phase flow cyclone axiality；Silt particle separation cone（10A）Bore long h2Account for and always bore the 54% of long H.
Two-stage desliming is divided in another pressure desliming pipe pressure silt particle separation field again, and first order desliming is that outward turning circulates
Become inward eddy silt particle Disengagement zone, its h3 length is 220mm, accounts for the 14% of gross pressure desliming pipe h overall lengths；First order desliming position
Put is from sand settling mouth（12A）Extended to pressure desliming pipe junction for starting point calculating in the range of stopping at 220mm points；The second level takes off
Mud is scope of the starting point to pressure desliming pipe exit as stop, second level desliming using at first order desliming stop 220mm
Field accounts for the 86% of pressure desliming pipe overall length h.
A diameter of Ф 75mm solid, liquid two-phases stream cyclone, it always bores long H for 408mm；Bore long h1For 188mm, cone length
h2For 220mm, first order desliming h3 length is 220mm；The length of second level desliming is 1380mm, and h length is 1600mm.
Using between each part of Φ 75mm solid, liquid two-phase stream cyclones using five jointing clips（1A、3A、7A、9A、
11A）Connection, once the blocked block clearing ability of sand settling mouth is substantially increased, it is efficient and convenient.
" two extractions of root " of the invention is because with following three kinds of features, one is to divide one 38 μm by without grade drop phenomena principles
Grade-classification point and -10 μm of grade desliming points；Two be to be classified point and use to be transformed into inward eddy separation length list with contour stealth
Position is the new approaches design Ф 350mm three-phase flow cyclones of foundation, and long separation cone cone is about 300mm；Three be that desliming point uses two
Mutually the common 423mm and 138mm water columns resistance new approaches of stream cyclone the second-order separation long measure design two phase flow cyclone, mine tailing
P2O5Grade Control less than 16%, is being realized " drop two is improved "（Tailings grade is reduced, powdered concentrated phosphate yield and recovery is improved
Rate）Transform target.
Brief description of the drawings
Fig. 1 produces the flow chart of powdered concentrated phosphate for two sections of cyclone open circuit flows of the present invention.
Fig. 2 is a diameter of Φ 350mm solid, liquid, gas three-phase flow hydrocyclone structural representation of the invention.
Fig. 3 is a diameter of Φ 70mm solid, liquid two-phases flowing water power hydrocyclone structure schematic diagram of the invention.
Fig. 4 is the enlarged drawing at A positions in Fig. 3.
Fig. 5 is original three sections of cyclones open circuit flow chart.
Fig. 6 is three sections of cyclone open circuit number quality process figures（2005）.
Tri- sections of cyclone open circuit number quality process figures of Fig. 7（In November, 2014）.
Two sections of cyclone open circuit number quality process figures of Fig. 8 present invention.
Each label in Fig. 1：1-Φ 350mm cyclones, 2-I section of overflow, 3-pipeline sieve, 4-Φ 75mm two-phase eddy flows
Device, 5-pressure classification pipe, 6-flashback tank, 7-II section of sand setting, 8-mortar pump, 9-I section of overflow tank diameter, 10-I section is sunk
Sand, 11-mortar pump, 12-tank diameter.
Each label in Fig. 2：1B-ore slurry pipeline, 2B-pulp-inlet pipe adpting flange, 3B-stock inlet, 4B-adpting flange,
5B-gland, 6B-outer overflow B7B-interior overflow pipe, 8B-cylinder cone disjunctor axiality cone, 9B-adpting flange, 10B-point
Level cone, 11B-jointing clip, 12B-Disjoint Cone, 13B-jointing clip, 14B-sand setting nozzle.
Each label in Fig. 3 and Fig. 4：1A-jointing clip, 2A-stock inlet, 3A-jointing clip, 4A-overflowing bent pipe,
5A-overflow cap, 6A-cylinder cone disjunctor axiality cone, 7A-jointing clip, 8A-desliming cone, 9A-jointing clip, 10A-mud
Sand separation is bored, 11A-jointing clip, 12A-sand setting nozzle 13A-caulking gum pipe, 14A-adpting flange, 15A-pressure gauge,
16A-blow-down pipe, 17A-flashback tank upper body, 18A-pressure classification pipe, 19A-filler pipe, 20A-flashback tank lower cone,
21A-short tube, 22A-valve, 23A-total base opening.
Label in Fig. 5：1C-Φ 500mm cyclones, 2C-I section overflow, 3C-Φ 250mm cyclones, 4C-II section is overflow,
5C-Φ 125mm cyclone 6C-III section sand settings 7C-mortar pump 8C-II section overflow tank diameter 9C-II section sinks
Sand, 10C-mortar pump, 11C-I section overflow tank diameter, 12C-I section sand setting, 13C-mortar pump, 14C-tank diameter.
Embodiment
After two-stage process procedure Procedure of the present invention is as shown in figure 1, mid-low grade collophanite ore raw ore is classified through spiral classifier,
Allow and be classified as 1000 ~ 0 μm of grade fine ores and enter tank diameter（1）, mortar pump（14）Fine ore stock pump is entered into a diameter of Φ of first paragraph
350mm solid, liquid, gas three-phase flow hydrocyclones（13）In, three-phase flow hydrocyclone（13）For separating+38 μm of grades, three
Mutually flow hydrocyclone（13）The coarse fraction sand setting obtained in separation process enters distributor box by pipeline（11）, thin of acquisition
Grain overflow is sieved through pipeline（4）Enter first paragraph overflow tank diameter afterwards（5）In；Mortar pump（10）Again by first paragraph overflow tank diameter
（5）In fine grained sieved through piping（6）After be pumped into a diameter of Φ 75mm two-phase cyclones of second segment（7）Charging aperture, two-phase rotation
Flow device（7）For separating+10 μm of grades, two-phase cyclone（7）Coarse fraction sand setting after separation flows into distributor box again（11）, two-phase
Cyclone（7）Fine grained overflow after separation enters tail-box, into distributor box（11）Sand setting be evenly distributed to belt type filter
Machine（12）Upper to be filtered, the ore deposit after filtering is concentrate.
Operation principle：Mid-low grade collophanite ore rock phosphate in powder and gangue mineral difference in specific gravity are minimum, unlike nonferrous metals ore is useful
Mineral and gangue mineral difference in specific gravity quite it is big, thus be considered as without etc. drop phenomenon mineral, certainly also cannot be by waiting drop phenomenon enter
Row grade is divided, and its classification point and desliming point should be divided by its natural law.Its natural law one is+38 μm of grades
Content quite stable, typically between 58 ~ 68%；Two be 38 ~ 10 μm of grade grade P2O5With -10 μm of grade grade P2O5Difference is very
Greatly, the former is 24 ~ 29%, and the latter is 13 ~ 16%.It is poor for mid-low grade collophanite ore grain size content the most stable grade and grade
The two characteristics of value maximum determine+38 μm of classification points of this mineral only one of which and -10 μm of grade desliming points, so just form
The method production procedure of two sections of cyclone open circuit production powdered concentrated phosphates.
For without waiting drop 1000 ~ 0 μm of grain size contents of phenomenon mid-low grade collophanite ore and grade inherent characteristic by waiting drop phenomenon
The big defect of Ф 500, Ф 250 and the three of Ф 125mm hydrocyclones that principle design comes out is actual, by Ф 500 and the mm of Ф 250
Two sections of hydrocyclone merges into one section, the present invention using Ф 350mm hydrocyclones instead of, Ф 125mm hydrocyclones+
19 μm of grade-classification points remove, and use the desliming that Ф 75mm two phase flows cyclones are changed to+19 μm of grade-classification points+10 μm of grades instead
Point.
First, Ф 350mm solid, liquid, gas three-phase flow hydrocyclone is as shown in Fig. 2 its classification point 1000 ~ 38 μm of grades, grain
Level content 58 ~ 68%, grade grade P2O526~31%.Ф 350mm solid, liquid, gas three-phase flow hydrocyclones are characterized in：It is classified cone
In addition to most grading function, axiality, sand setting product and overflow product separation function have been taken into account.Devise cylinder cone disjunctor coaxial
Degree cone 8B, classfied cone 10B and separation cone 12B.Cylinder cone disjunctor（One-time cast-forming）In the long L of cone1610mm, accounts for overall length
37% or so of H1650mm, sufficiently long cone is long to be enough to control the same of the cylinder of Ф 350mm solid, liquid, gas three-phase flows and cone
Axle degree, in other words, solves the axiality of cyclone.Inward eddy separation length unit is converted into according to contour stealth（It can observe,
Polishing scratch data can also be surveyed, similarly hereinafter）There is provided a separation cone, bores long L2300mm, accounts for 18% left side for always boring long H1650mm
It is right.
2nd, 1000 ~ 0 μm of grade fine ores of mid-low grade collophanite ore set two sections of ± 10 μm of grade desliming points, consolidated using Φ 75mm,
Liquid two-phase cyclone, it is characterized in that：There are cone centrifugal force field and pressure desliming pipe pressure silt particle separation field, with two-stage desliming
Realize ± 10 μm of grade silt particle separation.
1st, Ф 75mm solid, liquid two-phases stream cyclone as shown in Figure 3 and Figure 4, the cone of first order cone centrifugal force field, according to
Outside most desliming function, taken into account the separation function of axiality, sand setting product and overflow product, devised cylinder cone disjunctor coaxial
Degree cone 6A, desliming cone 8A and silt particle separation cone 10A.The long h of cone of cylinder cone disjunctor axiality cone 61For 188mm, account for and always bore long H408mm
46%, accurately control Φ 75mm two phase flow cyclone axialities.The long h of sand setting separation cone cone2For 220mm, total cone length is accounted for
The 54% of H408mm.
2nd, Ф 75mm solid, liquid two-phases stream cyclone as shown in Figure 3 and Figure 4, the pressure desliming of the second stage pressure desliming pipe,
This point two-stage desliming again.The first order is that contour stealth is transformed into inward eddy silt particle Disengagement zone, and long measure is about 220mm, is accounted for
The 14% of gross pressure desliming pipe overall length.The position of first stage pressure desliming is in sand settling mouth 12A and pressure desliming pipe junction
It is at 220mm that point, which is counted to h3,.Pressure desliming the second stage pressure of pipe desliming is counted to pressure desliming pipe from 220mm starting points
Mouthful, total length is 1380mm, and the former accounts for the 14% of pressure desliming pipe overall length h (1600mm), and the latter accounts for pressure desliming pipe overall length h
The 86% of (1600mm).
3rd, Ф 75mm solid, liquid two-phases stream cyclone is using jointing clip 1A, jointing clip 3A, jointing clip 7A, connection card
Bind round 9A, five clips of jointing clip 11A and be flexibly connected point, once the blocked block clearing ability of sand settling mouth is substantially increased, fast
It is convenient.
Embodiment 1：Technology of phosphorite scrubbing factory of Jinning County year 1600000 tons of raw ores of processing
Clean rock phosphate in powder proportion and aluminosilicate and carbonate gangue mineral proportion it is very nearly the same, thus without wait drop show
As, the graded product typically all intermediate products of drop phenomenon such as have, be the pre-classification before sorting operation, and clean phosphorus ore classification
Product is not so.Graded product concentrate chats or mine tailing are all final products, and this is that scouring phosphorus ore is intrinsic
Characteristic.In addition, cleaning between phosphorus ore grade and grade has very close relationship.
Grade μm yield % P2O5%
+ 74 grades 14.49 ~ 70.62 27.58 ~ 31.86
+ 38 grades 58.31 ~ 67.93 27.08 ~ 31.23
+ 10 grades 20.90 ~ 81.51 24.61 ~ 29.31
- 10 grades 14.73 ~ 19.08 13.25 ~ 14.07
Find out from above-mentioned data, clean phosphorus ore and be divided into three-level from the point of view of stability and the grade distribution of grain size content,
+ 38 μm of grades of the first order, -10 μm of grades of+10 μm of second level grade and the third level.If by waiting drop phenomenon to divide, grade is reclaimed
If boundary line is 10 μm, then+74,74 ~ 38,38 ~ 19,19 ~ 10 and -10 μm of Pyatyis will be divided into, it is clear that drop phenomenon without waiting
Just can be with as long as cleaning phosphorus ore point+38 ,+10 and -10 μm of three grades, that is, get over two-stage and be classified.
Two sections of cyclone open circuit flow production powdered concentrated phosphate method economic benefits
1st, raw ore, block concentrate, powder concentrate index
2nd, fine ore
3rd, economic benefits indicator
1,600,000 tons of raw ore of year processing, improves 1.99% by yield and calculates, can increase by 3.18 ten thousand tons of concentrate, concentrate per ton is pressed
300 yuan of meters, can increase by 9,540,000 yuan.
One section of cyclone of Ф 500 of technology of phosphorite scrubbing factory of Jinning County is shown in Table 1 to ore deposit fractional analysis table：
One section of cyclone of Ф 500 gives ore deposit fractional analysis table（2005.10）Table 1
Original cyclones of first paragraph Ф 500 give ore deposit fractional analysis table（2014.1.16 72 hours）Table 2
It can be seen that from table 1, table 2：+ 38 μm of grain size contents between 64.75 ~ 67.45% ,+10 μm of grain size contents between
Between 80.88 ~ 81.51%, -10 μm of grain size contents are between 18.49 ~ 19.01%.
Clean shown in the cyclone feed preparation unit size analysis in table 3 of one section of Ф of factory 500 on sharp mountain：
One section of cyclone of Ф 500 gives ore deposit fractional analysis table（2005.10）Table 3
One section of cyclone of Ф 500 gives ore deposit fractional analysis table（2009.12）Table 4
From table 3, table 4 as can be seen that+38 μm of grain size contents are between 58.31 ~ 68.93% ,+10 μm of grain size contents are about
80.92%, -10 μm of grain size contents are about 19.08%.
Claims (9)
1. a kind of two sections of cyclones open circuit flow production powdered concentrated phosphate equipment, it is characterised in that the equipment is main by first paragraph
Three-phase flow hydrocyclone, second segment two phase flow cyclone, pipeline and mortar pump are constituted after being connected with each other, wherein to 1000 ~ 0 μm
Grade miberal powder is set to+38 μm of grade-classification points of first paragraph, and first paragraph uses a diameter of Ф 350mm solid, liquid, gas three-phase flow waterpower
Cyclone carries out separating treatment, and the fine grained overflow obtained after handling separation through first paragraph three-phase flow hydrocyclone passes through mortar
The a diameter of Φ 75mm two-phase cyclones of second segment are pumped into after pump, second segment ± 10 μm grade desliming point, second segment uses a diameter of
Ф 75mm solid, liquid two-phase streams cyclone carries out separating treatment.
2. equipment according to claim 1, it is characterised in that mid-low grade collophanite ore raw ore raw material is through spiral classifier point
After level, allow being classified as 1000 ~ 0 μm of grade fine ores and enter tank diameter（1）, mortar pump（14）Fine ore stock pump is entered into first paragraph a diameter of
Φ 350mm solid, liquid, gas three-phase flow hydrocyclones（13）In, three-phase flow hydrocyclone（13）For separating+38 μm of grades,
Three-phase flow hydrocyclone（13）The coarse fraction sand setting obtained in separation process enters distributor box by pipeline（11）, acquisition it is thin
Particle overflow is sieved through pipeline（4）Enter first paragraph overflow tank diameter afterwards（5）In；Mortar pump（10）Again by first paragraph overflow tank diameter
（5）In fine grained sieved through piping（6）After be pumped into a diameter of Φ 75mm two-phase cyclones of second segment（7）Charging aperture, two-phase rotation
Flow device（7）For separating+10 μm of grades, two-phase cyclone（7）Coarse fraction sand setting after separation flows into distributor box again（11）, two-phase
Cyclone（7）Fine grained overflow after separation enters tail-box, into distributor box（11）Sand setting be evenly distributed to belt type filter
Machine（12）Upper to be filtered, the ore deposit after filtering is concentrate.
3. equipment according to claim 1 or 2, it is characterised in that a diameter of Ф 350mm solid, liquid, gas three-phase flowing water
Power cyclone is to bore disjunctor axiality cone by the cylinder on top（8B）, middle part classification cone（10B）With the Disjoint Cone of bottom
（12B）Sequentially connection forms a whole after being mutually communicated, the cylinder cone disjunctor axiality cone of its middle and upper part（8 B）With middle part
It is classified cone（10B）Pass through adpting flange（9B）Connection, the classification cone at middle part（10B）With the Disjoint Cone of bottom（12B）It is logical
Cross jointing clip（11B）Connection, Disjoint Cone（12B）Bottom passes through jointing clip（13B）It is connected to sand setting nozzle（14B）；In cylinder cone
Disjunctor axiality cone（8B）The sidepiece of cylinder part is provided with stock inlet（3B）, stock inlet（3B）With ore slurry pipeline（1B）By entering
Starch pipe adpting flange（2B）Connection, cylinder cone disjunctor axiality cone（8B）The top of cylinder part passes through gland（5B）It is connected to one
Outer overflow pipe（6B）.
4. equipment according to claim 3, it is characterised in that the cylinder bores disjunctor axiality cone（8B）Length L1Account for total
The 37% of the long H of cylinder cone, the sufficiently long long L of cone1It just can guarantee that and control cylinder in Ф 350mm solid, liquid, gas three-phase flow hydrocyclones
The axiality of body and cone, in other words, solves three-phase flow hydrocyclone axiality.
5. equipment according to claim 4, it is characterised in that the cylinder bores disjunctor axiality cone（8B）Using once pouring
Injection forming, cylinder cone disjunctor axiality cone（8B）Bore long L1For 610mm, Disjoint Cone（12B）Bore long L2For 300mm, total cylinder cone length
H is 1650mm.
6. equipment according to claim 1 or 2, it is characterized in that a diameter of Ф 75mm solid, liquid two-phases stream hydraulic cyclone
Device is by top cylinder cone disjunctor axiality cone（6A）, middle part classification cone（8A）With bottom Disjoint Cone（10A）After being mutually communicated
Sequentially connect and compose an entirety, its middle and upper part cylinder cone disjunctor axiality cone（6A）Cone is classified with middle part（8A）By connecting card
Hoop（7A）Connection, is classified cone（8A）With Disjoint Cone（10A）Pass through jointing clip（9A）Connection, Disjoint Cone（10A）Bottom
Pass through jointing clip（11A）Connect sand setting nozzle（12A）；In cylinder cone disjunctor axiality cone（6A）The sidepiece of cylinder part is provided with stock inlet
（2A）, stock inlet（2A）Pass through jointing clip with ore slurry pipeline（1A）Connection, overflowing bent pipe（4A）Through overflow cap（5A）Afterwards with
Cylinder cone disjunctor axiality cone（6A）The top of cylinder part is connected；
Sand setting nozzle（12A）It is socketed in pressure classification pipe（18A）It is interior, pressure classification pipe（18A）Insert flashback tank inside, flashback tank by
The flashback tank upper body on top（17A）With being bored under flashback tank（20A）Composition, wherein flashback tank upper body（17A）Pass through adpting flange
（14A）With pressure classification pipe（18A）Connection, flashback tank upper body（17A）Top is respectively provided with pressure gauge（15A）And blow-down pipe
（16A）, flashback tank upper body（17A）Sidepiece be equipped with filler pipe（19A）, bore under flashback tank（20A）Bottom is sequentially equipped with short tube
（21A）, valve（22A）With total base opening（23A）.
7. equipment according to claim 6, it is characterised in that in a diameter of Φ 75mm solid, liquid two-phases stream cyclone again
It is divided into cone centrifugal force field and pressure desliming pipe pressure silt particle separation field, ± 10 μm of grade silt particles point is realized with two-stage desliming
From wherein cone centrifugal force field is bored disjunctor axiality by cylinder and bored（6A）, classification cone（8A）And Disjoint Cone（10A）Composition, root
Outside according to most desliming function, the separation function of axiality, sand setting product and overflow product, cylinder cone disjunctor axiality cone have been taken into account
（6A）With classification cone（8A）The long h of cone1Account for and always bore the 46% of long H, for accurately controlling two phase flow cyclone axiality；Separation
Cone（10A）Bore long h2Account for and always bore the 54% of long H；
Two-stage desliming is divided in another pressure desliming pipe pressure silt particle separation field again, and first order desliming is to be transformed into contour stealth
Inward eddy silt particle Disengagement zone, its length h3For 220mm, the 14% of pressure desliming pipe overall length h is accounted for；First order desliming position be from
Sand setting nozzle（12A）Extended to pressure desliming pipe junction for starting point calculating in the range of stopping at 220mm points；Second level desliming with
It is that starting point arrives the scope that pressure desliming pipe exit is stop at first order desliming stop 220mm, desliming field in the second level accounts for pressure
The 86% of power desliming pipe overall length h.
8. equipment according to claim 7, it is characterised in that a diameter of Ф 75mm solid, liquid two-phases stream cyclone, its
Long H is always bored for 408mm；Bore long h1For 188mm, long h is bored2For 220mm, first order desliming h3Length is 220mm；The second level takes off
The length of mud is 1380mm, and h length is 1600mm.
9. equipment according to claim 6, it is characterised in that using between each part of Φ 75mm solid, liquid two-phase stream cyclones
Using jointing clip（1A、3A、7A、9A、11A）Connection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105233973B (en) * | 2015-11-02 | 2017-11-24 | 迈安德集团有限公司 | The graded desliming system and desliming process of a kind of MICA |
| CN105344465B (en) * | 2015-11-02 | 2017-06-16 | 迈安德集团有限公司 | A kind of ore pulp desliming system and ore pulp desliming process |
| CN105689162A (en) * | 2016-03-29 | 2016-06-22 | 山东科技大学 | Two-stage swirl sand washing device |
| CN106179786B (en) * | 2016-08-29 | 2019-06-21 | 云南磷化集团有限公司 | One liter of a drop is appreciated without the method for waiting drop cyclone bar shaped unit integrated system to improve grinding efficiency and classification efficiency using overflow fineness |
| CN106861941A (en) * | 2017-03-07 | 2017-06-20 | 威海市海王旋流器有限公司 | A kind of tar sands processing method and processing device |
| CN111437982B (en) * | 2020-04-08 | 2021-08-10 | 云南磷化集团有限公司 | Method for reducing fine ratio of sand setting to mineral grinding and grading capacity |
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