CN106179786A - Use the method that the fall cyclone bar shaped unit integrated systems such as overflow fineness appreciation one one liter of nothing of fall improve grinding efficiency and classification efficiency - Google Patents
Use the method that the fall cyclone bar shaped unit integrated systems such as overflow fineness appreciation one one liter of nothing of fall improve grinding efficiency and classification efficiency Download PDFInfo
- Publication number
- CN106179786A CN106179786A CN201610756232.9A CN201610756232A CN106179786A CN 106179786 A CN106179786 A CN 106179786A CN 201610756232 A CN201610756232 A CN 201610756232A CN 106179786 A CN106179786 A CN 106179786A
- Authority
- CN
- China
- Prior art keywords
- fall
- overflow
- cyclone
- cone
- bar shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/28—Multiple arrangement thereof for parallel flow
-
- 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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
- B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cyclones (AREA)
Abstract
The present invention relates to a kind of method using the fall cyclone bar shaped unit integrated systems such as overflow fineness appreciation one one liter of nothing of fall to improve grinding efficiency and classification efficiency, belong to two section of two closed circuit grinding classification of mid-low grade collophanite ore, flotation production phosphorus concentrate theory and technology and the processing of various mineral, technical field of beneficiation.The present invention be four (2 for 2) using one section of Φ 660mm without etc. fall cyclone bar shaped unit is integrated and two-stage nitration Φ 500mm) six (4 for 2) wait fall cyclone bar shaped unit integrated.
Description
Technical field
The present invention relates to the fall cyclone bar shaped unit integrated systems such as a kind of employing overflow fineness appreciation one one liter of nothing of fall carry
High grinding efficiency and the method for classification efficiency, belong to two section of two closed circuit grinding classification of mid-low grade collophanite ore, flotation production phosphorus essence
Ore deposit theory and technology and the processing of various mineral, technical field of beneficiation.
Background technology
Technical term: overflow fineness appreciates.Overflow fineness and the difference of mog, claim how many percentage points, be commonly called as several
Individual.
4,500,000 tons/year of raw ore flotation mills of Kunyang flotation mill production scale belonging to Yunnan Linhua Group Corp., Ltd.
Kunyang series the original design two section of two closed circuit grinding classification flow chart put into production as it can be seen, use one section of Φ 660mm and
The fall cyclone such as two-stage nitration Φ 500mm is as shown in the figure.Inventor floats for the Kunyang belonging to Yunnan Linhua Group Corp., Ltd.
The series of problems selecting factory's Kunyang two section of two closed circuit grinding classification system of series to break out in process of production is explored, and finds one
Section grinding classification system problem concentrates on overflow fineness and appreciates for 60.94-29.64=31.30, and Φ 660mm is conventional
Fall cyclone overflow fineness is meticulous, and-200 mesh content are up to 60～72%.Secondary grinding hierarchy system problem concentrates on two
It is not enough that section ore grinding enters mill amount, causes overground, mistake crushing phenomenon；Two-stage nitration Φ 500mm conventional cyclone sand setting folder is thin serious ,-200 mesh
Content reaches 24～30%.Also have one more seriously the fall such as one section of Φ 660mm cyclone loop configuration unit from machine
Group bottom is entered the mode of slurry and is caused one sand setting of three cyclones to draw dry tie rod, overflow to run slightly, and a sand setting is had loose bowels, and overflow is the dilutest
Again the fact that thin cisco unity malfunction.In order to solve this series of problems, have developed a kind of overflow fineness appreciate " fall one liter "+
The method that the fall cyclone+bar shaped unit integrated technologies such as nothing improve grinding efficiency and classification efficiency.
Production process also exists some significant problems as follows:
1, intrinsic two section of two closed circuit grinding classification flowage structure is only suitable for Staged grinding and staged separation, is not suitable for Kunyang
Mid-low grade collophanite ore stage grinding concentrates the production sorted actual so that one section of ball mill 3 grinds with two-stage nitration ball mill 7 (Fig. 1)
Ore deposit amount imbalance, it is difficult to realize balancing run, cause and cannot normally produce.
2, one section of closed circuit classifying equipoment uses the fall cyclones such as Φ 660mm, and it is by outer overflow pipe 1, pulp-inlet pipe 5, interior overflow
Pipe 6, cylinder 7, cone 9, separate cone 11 and sand settling mouth 13 etc. seven parts composition, its main feature is to separate cone long measure L
About=450mm, accounts for the 28.93% of total cone length 1553mm.60.94-29.64=31.30 percentage of overflow fineness appreciation
Point, overflow fineness is up to 60.94%-200 mesh, causes the ore deposit amount of the most about 39.06% to distribute to two-stage nitration ball mill, and one section and
The dischargeable capacity of two-stage nitration ball mill is 85m3, equal size, it is clear that two-stage nitration ball mill can empty belly, do not have enough to eat, produce overground
Phenomenon, causes mog meticulous.
3, the closed circuit classifying equipoment of two-stage nitration uses the fall cyclones such as Φ 500mm, by outer overflow pipe 1, pulp-inlet pipe 5, interior overflow pipe
6, cylinder 7, cone 9, separate cone 11 and sand settling mouth 13 etc. seven parts composition, its main feature is to separate cone long measure L=
About 215mm, accounts for the 19.09% of total cone length 1126mm, overflow fineness appreciation 90.00-49.93=40.07 percentage point,
Belong to fine grinding segmentation theory mode category.Sand setting folder is thin and tall reaches 24.97%-200 mesh, and qualified products return to, among grinding machine, make
Having become-5 μm content in the fall cyclone overflows such as Φ 500mm to be up to 23%, these the highest micro-size fractions are in follow-up flotation
Operation consumes a large amount of medicament, is the main cause that beneficiating efficiency is low.
4, in background technology, during platform, treating capacity is 183 ton hour raw ores, and 25.48 KWhs/ton of raw ores of power consumption, classification efficiency is
61.52%.
5, the fall such as one section of Φ 660mm of background technology cyclone enters to starch from unit bottom for 3 annular units with 3, three eddy flows
In device, a sand setting draws dry tie rod, overflow to run slightly, and a sand setting is the dilutest but also thin, and last is properly functioning.Its result such as table 1
Shown in.
Summary of the invention:
It is an object of the invention to overcome existing background technology overflow fineness appreciation " one high and one low " Φ 660mm and Φ 500mm
Deng the defect that sand setting folder is thin, overflow race is thick of fall cyclone, one section of Φ 660mm etc. drops one sand setting of cyclone and draws dry tie rod, and one
Prop up the major defect of the dilutest but also thin loop configuration unit, it is provided that a kind of applicable mid-low grade collophanite ore overflow fineness appreciates, and " one drops
One liter "+without etc. the fall cyclone+bar shaped unit integrated system method that improves grinding efficiency and classification efficiency, its classifying equipoment one
Section uses Φ 660mm without waiting fall cyclone, and two-stage nitration uses Φ 500mm without waiting fall cyclone.
One of the present invention uses the fall cyclone bar shaped unit integrated systems such as overflow fineness appreciation one one liter of nothing of fall to improve mill
Ore deposit efficiency and classification efficiency method, it is characterised in that: air slaking collophane raw ore feeds one section of ball through raw ore to barrow band (21)
Grinding machine (23), ore milling product enters Pulp pump pond (25), with one section of Pulp pump (24) squeeze into first paragraph classifying equipoment Φ 660mm without
Carrying out classification Deng fall cyclone (22) bar shaped unit, after classification, sand setting return first paragraph ball mill is regrinded, and overflow flows automatically to slurry
Pump pond (29), after merging with second segment grinding of ball grinder mineral products, with Pulp pump (28) get to second segment classifying equipoment Φ 500mm without
Carrying out classification Deng fall cyclone (26) bar shaped unit, after classification, sand setting returns ball mill (27), product for the purpose of its described overflow
Flowing automatically to follow-up flotation operation, described nothing etc. drops cyclone bar shaped unit and uses its top feed feed mode.
46 Φ 660mm of described first paragraph classifying equipoment without etc. fall a cluster cyclone be in strip unit integrated be by two row or
The horizontally-arranged arrangement mode of person three row assembles；46 Φ 500mm of described second segment classifying equipoment are without waiting fall cyclone composition bar
Shape unit is integrated is to assemble by two row or the horizontally-arranged arrangement mode of three row.
The fall cyclone bar shaped unit such as four Zhi Wu of described first paragraph Φ 660mm and six nothings of second segment Φ 500mm
Deng fall cyclone bar shaped unit, constituting bar shaped unit integrated system, bar shaped unit uses top to enter slurry mode.
In described first paragraph classifying equipoment use Φ 660mm without wait fall cyclone be by stock inlet (5), outer overflow connection
Flange (2), enter slurry (7), cover plate (3), interior overflow (6), outer overflow pipe (1), pressure release pipe (15), cylinder cone (9), separate
Cone (11), sand setting nozzle (13) composition, its type of attachment is, stock inlet (5) is overall structure with entering slurry (7), cover plate (3) with enter
Slurry (7) uses cover plate adpting flange (4) to connect, interior overflow (6) uses tapering to insert outer overflow adpting flange with cover plate (3)
(2) compressing, outer overflow adpting flange (2) is connected, outer overflow pipe (1) is connected by each other with cover plate (3) employing in outer overflow (1)
Outer overflow anchor ear (14) connects, and pressure release pipe (15) and outer overflow pipe (1) are overall structure, cylinder cone (9) with enter slurry (7)
Using cylinder cone adpting flange (8) to connect, separation cone (11) separates cone anchor ear (10) with cylinder cone (9) employing and connects, desilting tip
(13) with separate cone (11) use desilting tip anchor ear (12) connect, pressure release pipe (15) be arranged on outer overflow pipe (1) sidepiece and
Communicate with outer overflow pipe (1).
In described second segment classifying equipoment use Φ 500mm without wait drop cyclone be by stock inlet (5), enter slurry (7),
Cover plate (3), interior overflow (6), outer overflow pipe (1), pressure release pipe (15), cylinder cone (9), separation cone (11), sand setting nozzle (13)
Composition.Its type of attachment is, stock inlet (5) with enter slurry (7) be overall structure, cover plate 3 and enter slurry (7) use cover plate be connected
Flange (4) connects, interior overflow (6) uses tapering to insert outer overflow adpting flange (2) compression, outer overflow (1) and lid with cover plate (3)
Plate (3) uses outer overflow adpting flange (2) to connect, and outer overflow pipe (1) is connected by outer overflow anchor ear (14) each other and connects, presses
Power release pipe (15) and outer overflow pipe (1) are overall structure, and cylinder cone (9) uses cylinder cone adpting flange (8) with entering slurry (7)
Connect, separate cone (11) and cylinder cone (9) use separates cone anchor ear (10) connect, desilting tip (13) and separate cone (11) employing and sink
Husky nozzle anchor ear (12) connects, and pressure release pipe (15) is arranged on outer overflow pipe (1) sidepiece, and communicates with outer overflow pipe (1).
Described first paragraph classifying equipoment Φ 660mm without etc. fall cyclone according to cyclone contour stealth be converted into inward eddy work
Separation cone long measure L=215mm of principle design～235mm, account for the 17.66% of total long 1331mm of cylinder cone.
Described second segment classifying equipoment Φ 500mm without etc. fall cyclone be based on cyclone contour stealth and be converted into inward eddy work
Making principle design, it separates cone long measure L=188～200mm, accounts for the 18.46% of total cylinder cone length 1083mm.
The present invention also has an important strong point of implementing to be exactly the fall cyclone such as Φ 660 grade and Φ background technology used
The annular unit structure of modification of the fall cyclone such as 500mm becomes: four Φ 660 without etc. fall cyclone and six Φ 500mm drop without waiting
The bar shaped set structure of cyclone.
First paragraph overflow fineness is appreciated and is reduced to from background technology 60.94-29.64=31.30 percentage point by the present invention
The technology of the present invention 43-20=23 percentage point.Second segment overflow fineness is appreciated from background technology 90.00-49.93=40.07
Percentage point bring up to 86.00-36.00=50 percentage point of inventive technique.First paragraph overflow fineness appreciates and reduces 8.3
Percentage point, second segment overflow fineness appreciates and improves 9.93 percentage points.Background technology ore grinding amount 183t/h raw ore, power consumption
25.87kW h/t raw ore, the technology of the present invention ore grinding amount 220t/h raw ore, power consumption 21.95kW h/t raw ore；Two-stage nitration classification efficiency
Background technology 61.52%, the technology of the present invention is 63.76%.
Accompanying drawing explanation
Fig. 1 Φ of the present invention 660 without etc. fall cyclone structural representation.
Fig. 2 Φ of the present invention 500 without etc. fall cyclone structural representation.
The structural representation of cyclone such as fall such as Φ 660 grade in Fig. 3 prior art.
The structural representation of cyclone such as fall such as Φ 500 grade in Fig. 4 prior art.
The annular unit structural representation being made up of fall cyclones such as six Φ 660 in Fig. 5 prior art.
Fig. 6 is the vertical view direction structure signal being circularized unit in Fig. 5 prior art by fall a cluster cyclones such as six Φ 660
Figure.
The annular unit structural representation being made up of fall cyclones such as 9 Φ 500 in Fig. 7 prior art.
Fig. 8 is the vertical view direction structure signal being circularized unit in Fig. 7 prior art by fall a cluster cyclones such as 9 Φ 500
Figure.
Fig. 9 present invention by 4 Φ 660 without etc. the fall above row that forms of cyclone and a following row constitute two rows
Bar shaped set structure schematic diagram.
Figure 10 is that Fig. 9 present invention is in strip the vertical view direction structure schematic diagram of unit by fall a cluster cyclones such as 4 Φ 660.
Figure 11 is that Fig. 9 present invention is in strip the side-looking direction structure schematic diagram of unit by fall a cluster cyclones such as 4 Φ 660.
Figure 12 present invention by 6 Φ 500 without etc. the structure of upper, middle and lower three row arrangement bar shaped unit that forms of fall cyclone
Schematic diagram.
Figure 13 is that Figure 12 present invention is in strip the vertical view direction structure schematic diagram of unit by fall a cluster cyclones such as 4 Φ 500.
Figure 14 is that Figure 12 present invention is in strip the side-looking direction structure schematic diagram of unit by fall a cluster cyclones such as 4 Φ 500.
The fall a cluster cyclone such as Figure 15 Φ of the present invention 660 is in strip the fall a cluster cyclone such as unit and Φ 500 and is in strip unit and exists
Two section of two closed circuit grinding classification production process route installs annexation with miscellaneous equipment.
Figure 16 uses ore deposit, Kunyang series grind grading ore pulp flow process that prior art processes processes.
Figure 17 uses ore deposit, Kunyang series grind grading ore pulp flow process after the technology of the present invention PROCESS FOR TREATMENT.
Each label in figure:
1 outer overflow pipe；2 outer overflow adpting flanges；3 cover plates；4 cover plate adpting flanges；5 stock inlets；In 6
Overflow；7 enter slurry；8 cone adpting flanges；9 cones；10 separate cone anchor ear；11 separate cone；13 sand settings
Nozzle；14 separate cone anchor ear；15 pressure release pipes.
21 raw ore belts are to ore deposit；22 Φ 660 without etc. fall cyclone；23 first paragraph ball millings；24 Pulp pump；25—
Slime dam；26 Φ 500 without etc. fall cyclone；27 second segment ball millings；28-Pulp pump；29-slime dam；20-overflows to float
Choosing.
31 fall cyclones such as Φ 660 grade；32 outer overflow pipes；33 feed distributors；34 Pressure gauges；35—DN200
Pneumatic gate valve；36 spill boxes；37 sand setting casees；38 cyclone retainer ring；39 outer lower limbs；40 charging adapters；41 sink
Sandbox connecting tube；42 sand setting sampling cabinets；43 overflow sampling cabinets；44 overflow discharge connections；45 sand setting cover plates, 46 rotations
Stream device cover plate, 47 cyclone cover plate bracing frames, 48 cyclone adapters.
51 rifflers；52 overflow pipes；53 fall cyclones such as Φ 500 grade；54 overflow launders；55 pneumatic gate valves；
56 allotters；57 supports；58 sand setting sampling grooves；59 overflow sampling grooves；50 feed pipes.
The fall cyclones such as 61 nothings；62 U-shaped overflow pipes；63 supports；64 sand-precipitating tubes；65 sand settings collect cylinder；
66 points of pipes；67 adjust pipe (A)；68 sand setting mixing machines；69 overflow mixer outlets；70 overflow mixers；
71 slurry pump pressures；72 adjust pipe (B)；73 overflow discharge headers；74 sand setting discharge pipes；75 pulp-inlet pipes, 76 overflow
Flow tube, 77 pressure release pipes.
Detailed description of the invention
Mid-low grade collophanite ore Phosphate minerals proportion of the present invention between 2.8～3.2, aluminosilicate gangue mineral ratio
Weighing about 2.6, difference in specific gravity is between 0.2～0.6, by its etc. fall theory can be considered without etc. fall mineral, classification grade boundary line can be pressed
Fineness according to purpose Phosphate minerals liberation degree of minerals divides, it is not necessary to consider and gangue mineral difference in specific gravity.In other words, eddy flow drops in nothing etc.
Device be with size divide classification boundary line reclaim target minreal, and wait drop cyclone be with than great, granularity is little and proportion is little,
The grade width that particle diameter is big divides classification boundary line and reclaims target minreal.The fall cyclone units such as nothing are size, wait fall eddy flow
Device the latter's unit is grade width, and size is exactly a point, and grade width is exactly a line segment length, " point " and " line segment "
There is the difference that character is different between the two, thus etc. fall cyclone for without etc. fall mineral in be not meet objective law.
Specifically, one section of classifying equipoment Φ 660mm without etc. fall cyclone be converted into inward eddy operation principle according to cyclone contour stealth and set
The cone long measure that separates of meter is that L=235mm accounts for the 17.66% of total long 1331mm of cylinder cone.Two-stage nitration classifying equipoment Φ 500mm without
Separate a length of 184mm of cone Deng fall cyclone, compared with waiting fall cyclone 215mm, separate cone contraction in length 31mm.
First paragraph Φ 660mm of the present invention uses the most horizontally-arranged two row structure compositions 2 for 2 bar shaped machines without waiting fall cyclone unit
Group, has four big features: one is to enter from bar shaped unit top；Two is to increase single cyclone volume treating capacity, from 254m3/h·
Zhi Tigao to 380m3/ h props up, and it is uneven that above-mentioned two characterising measures mainly solve annular machine component slurry granularity, causes one to sink
Sand draws dry tie rod, and overflow is run thick, and a sand setting is had loose bowels, and overflow is the dilutest but also carefully cannot normally work.Three is into starching pressure only
0.028～0.030MPa, not only energy efficient, also can alleviate abrasion, increase the service life.Four is that change background technology is uncovered heavy
Sand launder is sand sediment pipe, and the way utilizing sand setting to rush sand setting solves riffler and easily grinds the technical measures of rapid wear.The present invention is by background skill
Uncovered overflow launder in art is revised as U-shaped overflow pipe, and the structural change original production producer of third feature item and fourth feature item prolongs
With 70 years dangerous, not environmentally, three big problems of maintenance difficult.
Embodiment: the present invention uses the bar shaped unit integrated system of the fall cyclones such as overflow fineness appreciation " fall one liter " nothing
The method improving grinding efficiency and classification efficiency is four (2 for 2) using one section of Φ 660mm without etc. fall cyclone bar shaped machine
The fall cyclone bar shaped unit such as six (4 for 2) organizing integrated and two-stage nitration Φ 500mm is integrated.
The embodiment of the present invention is to the Kunyang flotation mill Kunyang series two section two belonging to Yunnan Linhua Group Corp., Ltd.
The concrete reforming mode of closed circuit grinding classification system is: enters to starch the method for salary distribution by annular unit bottom of the prior art and is revised as bar
Shape unit top is entered to starch the method for salary distribution, is strip unit (distribution) knot by annular unit (distribution) structural modification in background technology
Structure；It is revised as using 2 to drop rotation for 2 Φ 660mm without waiting for 2 by fall cyclones 4 such as one section of Φ 660mm now uses in background technology
Stream device replaces；6 now used by two-stage nitration Φ 500mm in background technology are revised as using 4 for 2 for fall cyclones such as 3 (9)
(6) Φ 500mm replaces without waiting fall cyclone；What the Φ 660mm in background technology etc. dropped cyclone enters to starch pressure from 0.10
～0.12MPa drop to 0.028～0.030MPa without etc. fall cyclone；The fall cyclones such as the Φ 500mm in background technology are entered
Slurry pressure from 0.18～0.2MPa drop to 0.07～0.08MPa without wait drop cyclone；By the existing Φ 660mm in background technology
Volume treating capacity 254m Deng fall cyclone3/ h props up and brings up to 380m3Cyclone drops in/h Zhi Wu etc.；Change the falls such as Φ 500mm
Cyclone volume treating capacity 135m3/ h props up and rises to 288m3Cyclone drops in/h Zhi Wu etc.；By adopting in background technology
Uncovered riffler, the overflow launder of more than 70 year are that sand setting rushes the sand sediment pipe of sand setting, U-shaped overflow pipe, solve prolongation in service life, safety
Environmental protection produces, keeps in repair the problem that extremely simple convenience can not get solving for a long time.
Through one section of overflow fineness appreciation transformation 60.94-29.64=31.30 percentage point of fall from background technology
Low to the technology of the present invention 43-20=23 percentage point.Two-stage nitration overflow fineness through transformation appreciates original from background technology
90.00-49.93=40.07 percentage point bring up to 86.00-36.00=50 percentage point of the technology of the present invention.Wherein one
Section overflow fineness appreciates and reduces 8.3 percentage points, and two-stage nitration overflow fineness appreciates and improves 9.93 percentage points.Background technology is ground
Ore deposit amount 183t/h raw ore, power consumption 25.87kW h/t raw ore, the technology of the present invention ore grinding amount 220t/h raw ore, power consumption 21.95kW
H/t raw ore；Two-stage nitration classification efficiency background technology 61.52%, the technology of the present invention is 63.76%.
Fall cyclone+bar shaped unit the integrated technologies such as overflow fineness appreciation " fall one liter "+nothing that the present invention proposes are concrete
Content is reduced to 23 percentage points for being appreciated by one section of overflow fineness, and two-stage nitration overflow fineness appreciates and brings up to 50 percentage points.This
Inventive method can efficiently solve the load reasonable distribution problem of two sections of grinding machines, simultaneously also can be by grinding classification system disposal ability
Being promoted to 220t/h from 183t/h, power consumption drops to 21.95 KWhs/ton of raw ores from 25.87 KWhs/ton of raw ores, and classification efficiency is from 61.52%
Bring up to 63.75%, it is achieved that improve the purpose of grinding efficiency and classification efficiency.In order to realize this purpose, one weight of the present invention
The strong point of implementing wanted is exactly the Φ 660 and Φ 500mm etc. of background technology use to be dropped cyclone annular unit structure of modification become
Φ 660 and Φ 500mm without etc. fall cyclone bar shaped set structure.
The series of problems that pin of the present invention breaks out in process of production is explored, and finds primary grinding hierarchy system problem
Concentrate on overflow fineness and appreciate for 60.94-29.64=31.30, the fall cyclone overflow fineness mistakes such as Φ 660mm is conventional
Carefully ,-200 mesh content are up to 60～72%.Secondary grinding hierarchy system problem concentrates on secondary grinding and enters mill amount deficiency, makes
Become overground, cross crushing phenomenon；Two-stage nitration Φ 500mm conventional cyclone sand setting folder is thin serious, and-200 mesh content reach 24～30%.Also have
One more seriously the fall such as one section of Φ 660mm cyclone loop configuration unit enter the mode of slurry from unit bottom and cause
One sand setting of three cyclones draws dry tie rod, overflow to run thick, and a sand setting is had loose bowels, and overflow is the dilutest but also the thing of thin cisco unity malfunction
Real.In order to solve this series of problems, have developed the fall cyclone+bar shaped machines such as a kind of overflow fineness appreciation " fall one liter "+nothing
The method that group integrated technology improves grinding efficiency and classification efficiency.
Fall cyclone+bar shaped unit the integrated technologies such as overflow fineness appreciation " fall one liter "+nothing that the present invention proposes are concrete
Content is reduced to 23 percentage points for being appreciated by one section of overflow fineness, and two-stage nitration overflow fineness appreciates and brings up to 50 percentage points.This
Inventive method can efficiently solve the load reasonable distribution problem of two sections of grinding machines, simultaneously also can be by grinding classification system disposal ability
Being promoted to 220t/h from 183t/h, power consumption drops to 21.95 KWhs/ton of raw ores from 25.87 KWhs/ton of raw ores, and classification efficiency is from 61.52%
Bring up to 63.75%, it is achieved that improve the purpose of grinding efficiency and classification efficiency.
Table 1 Kunyang flotation mill Φ 660 cyclone working index
The fall cyclone annular unit granularity such as Kunyang flotation mill background technology Φ 660mm divides slurry uneven result table 1
Note: 6# sand setting tie rod draws dry, 3# sand setting is had loose bowels whitewashing.
Claims (7)
1. one kind use overflow fineness appreciate a fall fall cyclone bar shaped unit integrated system such as one liter of nothing improve grinding efficiency with
Classification efficiency method, it is characterised in that: air slaking collophane raw ore feeds one section of ball mill (23) through raw ore to barrow band (21),
Ore milling product enters Pulp pump pond (25), squeezes into first paragraph classifying equipoment Φ 660mm without waiting fall eddy flow with one section of Pulp pump (24)
Device (22) bar shaped unit carries out classification, and after classification, sand setting return first paragraph ball mill is regrinded, and overflow flows automatically to Pulp pump pond (29),
After merging with second segment grinding of ball grinder mineral products, get to second segment classifying equipoment Φ 500mm without waiting fall eddy flow with Pulp pump (28)
Device (26) bar shaped unit carries out classification, and after classification, sand setting returns ball mill (27), after for the purpose of its described overflow, product flows automatically to
Continuous flotation operation, described nothing etc. drops cyclone bar shaped unit and uses its top feed feed mode.
Method the most according to claim 1, is characterized in that 46 Φ 660mm of described first paragraph classifying equipoment are without waiting fall rotation
Stream device composition bar shaped unit is integrated is to assemble by two row or the horizontally-arranged arrangement mode of three row；Described second segment classifying equipoment
46 Φ 500mm without etc. fall a cluster cyclone be in strip unit integrated be assemble by two row or the horizontally-arranged arrangement mode of three row and
Become.
Method the most according to claim 2, is characterized in that cyclone bar drops in four Zhi Wu etc. of described first paragraph Φ 660mm
Cyclone bar shaped unit drops in six Zhi Wu of shape unit and second segment Φ 500mm etc., constitutes bar shaped unit integrated system, bar shaped unit
Top is used to enter slurry mode.
Method the most according to claim 1 and 2, it is characterized in that in described first paragraph classifying equipoment use Φ 660mm without
It is by stock inlet (5), outer overflow adpting flange (2) Deng fall cyclone, enters slurry (7), cover plate (3), interior overflow (6), outer overflow
Pipe (1), pressure release pipe (15), cylinder cone (9), separation cone (11), sand setting nozzle (13) composition, its type of attachment is, stock inlet
(5) with to enter slurry (7) be overall structure, cover plate (3) with enter slurry (7) use cover plate adpting flange (4) to be connected, interior overflow (6)
Using tapering to insert outer overflow adpting flange (2) with cover plate (3) to compress, outer overflow (1) uses outer overflow connection method with cover plate (3)
Blue (2) connect, outer overflow pipe (1) is connected by outer overflow anchor ear (14) each other and connects, pressure release pipe (15) and outer overflow
Pipe (1) is overall structure, and cylinder cone (9) uses cylinder cone adpting flange (8) to be connected with entering slurry (7), separates cone (11) and cylinder
Cone (9) uses and separates cone anchor ear (10) connection, and desilting tip (13) uses desilting tip anchor ear (12) to connect with separating cone (11), pressure
Power release pipe (15) is arranged on outer overflow pipe (1) sidepiece and communicates with outer overflow pipe (1).
Method the most according to claim 1 and 2, it is characterized in that in described second segment classifying equipoment use Φ 500mm without
It is by stock inlet (5) Deng fall cyclone, enters slurry (7), cover plate (3), interior overflow (6), outer overflow pipe (1), pressure release pipe
(15), cylinder cone (9), separation cone (11), sand setting nozzle (13) composition.Its type of attachment is, stock inlet (5) with entering slurry (7) is
Overall structure, cover plate 3 with enter that slurry (7) uses cover plate adpting flange (4) to be connected, interior overflow (6) and cover plate (3) use tapering slotting
Enter outer overflow adpting flange (2) compression, outer overflow (1) uses outer overflow adpting flange (2) to be connected with cover plate (3), outer overflow pipe
(1) being connected by the connection of outer overflow anchor ear (14), pressure release pipe (15) each other is overall structure with outer overflow pipe (1), cylinder
Cone (9) uses cylinder cone adpting flange (8) to be connected with entering slurry (7), and separation cone (11) uses to separate to bore with cylinder cone (9) and embraces
Hoop (10) connects, desilting tip (13) uses desilting tip anchor ear (12) to connect with separating cone (11), and pressure release pipe (15) is arranged on
Outer overflow pipe (1) sidepiece, and communicate with outer overflow pipe (1).
Method the most according to claim 3, it is characterized in that described first paragraph classifying equipoment Φ 660mm without etc. fall cyclone depend on
It is converted into separation cone long measure L=215mm～the 235mm of the design of inward eddy operation principle according to cyclone contour stealth, accounts for total cylinder
The 17.66% of the long 1331mm of cone.
Method the most according to claim 4, it is characterized in that described second segment classifying equipoment Φ 500mm without etc. fall cyclone be
Being converted into the design of inward eddy operation principle according to cyclone contour stealth, it separates cone long measure L=188～200mm, accounts for total cylinder
The 18.46% of cone length 1083mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610756232.9A CN106179786B (en) | 2016-08-29 | 2016-08-29 | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610756232.9A CN106179786B (en) | 2016-08-29 | 2016-08-29 | 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106179786A true CN106179786A (en) | 2016-12-07 |
| CN106179786B CN106179786B (en) | 2019-06-21 |
Family
ID=58088125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610756232.9A Active CN106179786B (en) | 2016-08-29 | 2016-08-29 | 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106179786B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339939A (en) * | 2019-07-15 | 2019-10-18 | 云南磷化集团有限公司 | Collophane pre-classification, grind grading, respectively joint flotation technology and its system |
| CN111437982A (en) * | 2020-04-08 | 2020-07-24 | 云南磷化集团有限公司 | Method for reducing fine ratio of sand setting to mineral grinding and grading capacity |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2678776Y (en) * | 2004-03-19 | 2005-02-16 | 孙克勤 | Combined grout cyclone separator |
| CN100503051C (en) * | 2006-12-27 | 2009-06-24 | 沈阳铝镁设计研究院 | Silicon removing process for dressing low-grade magnesite |
| CN102773151B (en) * | 2012-07-12 | 2013-12-11 | 云南磷化集团有限公司 | Weathered collophanite graded processing technique |
| 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 |
| CN105597939A (en) * | 2015-12-25 | 2016-05-25 | 湘西自治州鑫汇金属新材料有限公司 | Process for mineral processing of low-grade silicon calcium collophanite |
-
2016
- 2016-08-29 CN CN201610756232.9A patent/CN106179786B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339939A (en) * | 2019-07-15 | 2019-10-18 | 云南磷化集团有限公司 | Collophane pre-classification, grind grading, respectively joint flotation technology and its system |
| CN110339939B (en) * | 2019-07-15 | 2021-04-16 | 云南磷化集团有限公司 | Combined process and system for pre-grading, grinding and grading and respectively floating collophanite |
| CN111437982A (en) * | 2020-04-08 | 2020-07-24 | 云南磷化集团有限公司 | Method for reducing fine ratio of sand setting to mineral grinding and grading capacity |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106179786B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203448175U (en) | Two-section ore grinding and grading device of gold ore | |
| CN110882829A (en) | Coarse particle tailing discarding sorting system based on hydraulic flotation technology | |
| CN103691538B (en) | A kind of grinding classification system of Ore | |
| CN102921523A (en) | Method for improving grinding efficiency and classification efficiency | |
| CN106964480B (en) | A kind of fine grinding sorted suitable for micro fine particle magnetite stone-hierarchical composition new process | |
| CN102225354A (en) | Re-flotation hybrid selecting process and selecting device thereof | |
| CN106216082A (en) | Low-grade Anshan type iron mine composite ore ore-dressing technique | |
| CN104492615A (en) | Grinding classification method | |
| CN106179786B (en) | 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 | |
| CN110339939B (en) | Combined process and system for pre-grading, grinding and grading and respectively floating collophanite | |
| CN106179785B (en) | One liter of one drop of overflow fineness appreciation drops cyclone bar shaped unit integrated technology without equal | |
| CN203874891U (en) | Backwater feed device with fractional concentration function | |
| CN210207202U (en) | System for collophanite pre-grading, ore grinding grading and separate flotation combined process | |
| CN204911756U (en) | Hierarchical ore dressing system of water -saving magnetic iron ore | |
| CN206184612U (en) | It one falls one liter and does not have to wait and fall swirler bar unit integrated system to adopt overflow fineness to appreciate | |
| CN212120417U (en) | A hydrocyclone that is used for vanadium titano-magnetite to carry out production | |
| CN102921541B (en) | Process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite | |
| CN105562184A (en) | Method and equipment for improving grinding efficiency and classifying efficiency by rough grinding and rough classifying | |
| CN104624408A (en) | Method for producing powdery phosphate concentrate by two-segment hydrocyclone open circuit flow | |
| CN206184611U (en) | Two section two closed -circuit grinding grading system does not fall swirler bar unit with having to wait in grades | |
| CN104958949A (en) | Multi-distribution system of tailings dry discharge belt filtering machine | |
| CN212263543U (en) | Gravity sorting system | |
| CN103464287B (en) | Flocculation desliming and acidic flotation method for iron carbonate ore fine-grained products | |
| CN206184613U (en) | Overflow fineness is appreciated and one to be fallen one liter and do not have to wait and fall swirler bar unit integrated device | |
| CN111450990A (en) | Gravity separation system and chromite beneficiation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |