CN108658098A - One kind is for the separation of ore method lithium salts production lithium slag, washing system - Google Patents
One kind is for the separation of ore method lithium salts production lithium slag, washing system Download PDFInfo
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- CN108658098A CN108658098A CN201810843736.3A CN201810843736A CN108658098A CN 108658098 A CN108658098 A CN 108658098A CN 201810843736 A CN201810843736 A CN 201810843736A CN 108658098 A CN108658098 A CN 108658098A
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- wash water
- gravity
- slurry
- tank
- tank body
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- 238000005406 washing Methods 0.000 title claims abstract description 118
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 56
- 239000002893 slag Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910003002 lithium salt Inorganic materials 0.000 title claims abstract description 22
- 159000000002 lithium salts Chemical class 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 137
- 230000005484 gravity Effects 0.000 claims abstract description 122
- 239000002002 slurry Substances 0.000 claims abstract description 98
- 238000002156 mixing Methods 0.000 claims abstract description 45
- 239000007787 solid Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 238000004513 sizing Methods 0.000 claims description 12
- 239000007790 solid phase Substances 0.000 claims description 12
- 238000005119 centrifugation Methods 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 description 3
- 229910001947 lithium oxide Inorganic materials 0.000 description 3
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- LFIWDPYJFLBDMX-UHFFFAOYSA-N lithium;sulfuric acid Chemical compound [Li].OS(O)(=O)=O LFIWDPYJFLBDMX-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
- B01D21/286—Means for gentle agitation for enhancing flocculation
-
- 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
- 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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/04—Halides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
One kind is for the separation of ore method lithium salts production lithium slag, washing system, including size mixing device, separator, gravity wash mill, centrifuge, wash water feedway and wash water retracting device, the size mixing device is connected to separator, the separator is connected to gravity wash mill, and the gravity wash mill is connected to centrifuge；According to the flow direction of slurry, the slurry that size mixing device recalls passes through separator successively, and gravity wash mill, until in centrifuge, the lithium slag after separating, washing is discharged from centrifuge；The wash water feedway provides wash water to size mixing device, gravity wash mill, and the wash water to be recycled enters in wash water retracting device.
Description
Technical field
The present invention relates to lithium battery new material technology field, specifically a kind of to give birth to lithium salts for ore method（Lithium carbonate, hydroxide
Lithium, lithium chloride etc.）Lithium slag separation, washing system, which makes that the residual lithium of lithium slag is low, moisture is low, substantially increases enterprise
The comprehensive utilization of economic benefit and lithium slag reduce energy consumption, it is significant.
Technical background
Due to new material, the fast development of new energy industry, high-end lithium product demand is powerful, especially power battery, spy
The domain requirements such as kind engineering plastics, glass ceramics and organic synthesis are vigorous, become lithium product line industry main growth factor.Lithium carbonate is made
For a kind of new material, it is widely used in battery industry, glass industry, ceramics and lubricant industry.Wherein with lithium battery industry
Rapid growth is the most prominent, and coming years whole world lithium ion battery annual output still maintains rapid growth, and annual growth reaches 30%
Left and right.
With the development of lithium battery industry, lithium ore resources are also more and more nervous, improve the yield and recycling lithium of lithium
Salt slag also becomes more and more important.Traditional ore method lithium salts production technology be will size mixing workshop section production slurries of sizing mixing（Ore
Method lithium salts production technology slurries solid phase grain size is 150-200 mesh）Leaching tanks are pumped into, being pumped into solid-liquid separating equipment by leaching tanks carries out
It detaches, wash, obtaining the lithium slag of oxide containing lithium 5/10000ths and concentration reaches the leachate of sulfuric acid lithium content 10%.
Solid-liquid separating equipment generally uses vacuum continuous filter（Interior filtering surface rotary drum vacuum filter, disk vacuum mistake
Filter, rotation desk vacuum filter, disk-turning type vacuum filter, belt vacuum filter etc.）Or diaphragm pressing washing press, it is preceding
Although person can continuous production, since filter cloth is easy mechanical damage and damages vacuum Washing ratio and separative efficiency is caused to decline
Waste is very big, the lithium slag moisture 24-30% of discharge, makes lithium slag utilize energy consumption to improve again, although the latter can make lithium salts pulp water
Divide and be less than 15%, but be intermittently operated, stability is poor, cumbersome, and leaching tanks pump and washing pump lift are pacified higher than 90 meters or more
Full blast danger is big, high energy consumption, while because being easy to generate channel relatively low, the final shadow that reduces detersive efficiency yield when washing between filter plate
It rings the economic benefit of enterprise and causes the comprehensive utilization energy consumption of lithium slag excessively high.
The technology of the present invention detaches the washing of two stage countercurrent gravity using continuous level-one, can make the oxidation lithium content in lithium slag
It is reduced to 2/10000ths of the inventive technique by traditional 5/10000ths hereinafter, lithium slag moisture content is reduced to 10% hereinafter, can by 30%
It is used for manufacture of cement directly as raw material, improves yield and production efficiency and economic benefit and social benefit, meaning is very
It is great.
Invention content
The present invention is to produce lithium salts to ore method（Lithium carbonate, lithium hydroxide, lithium chloride etc.）The lithium slag formed in the process
Size mixing process, separation process and gravity washing procedure are carried out, the residual lithium of the lithium slag of by-product is low, moisture is low to making, that is, improves
Plant yield again reduces the energy consumption of lithium slag comprehensive utilization, what detailed process was achieved through the following technical solutions：
This programme is achieved by the following technical measures：One kind is for the separation of ore method lithium salts production lithium slag, washing system
System, including size mixing device, separator, gravity wash mill, centrifuge, wash water feedway and wash water retracting device, institute
Size mixing device is stated to be connected to separator, the separator is connected to gravity wash mill, the gravity wash mill with from
Scheming is connected to；According to the flow direction of slurry, slurry that size mixing device recalls passes through separator successively, gravity wash mill,
Until in centrifuge, the lithium slag after separating, washing is discharged from centrifuge；The wash water feedway is washed to size mixing device, gravity
It washs device and wash water, the wash water and/or centrifuge that the wash water and/or gravity wash mill overflow that separator overflow goes out go out point is provided
The wash water separated out enters in wash water retracting device.Using the technical program, the lithium for being produced ore method lithium salts by size mixing device
The wash water that salt slag is provided with wash water feedway is tuned into slurry, and slurry enters separator and detached, from point of separator
The slurry separated out enters in gravity wash mill, and the wash water provided by wash water feedway is to the slurry in gravity wash mill
It is washed, the slurry after the washing of gravity wash mill enters seperator and detached into interior, and the wash water of recycling enters wash water and returns
In receiving apparatus and the lithia in the wash water of recycling is recycled.
Preferably, the gravity wash mill includes sequentially connected N grades of gravity washing tank（N≥2）, the first order weight
Power washing tank is connected to separator, and the N grades of gravity washing tanks are connected to seperator.Using the technical program, using N grades
Gravity washing tank washs the slurry that separator is isolated, and can improve the washing effect to lithium slag, improves to lithium
The rate of recovery of lithia in salt slag.
Preferably, according to the flow direction of wash water, the wash water of the wash water feedway supply passes through N grades of gravity successively
Washing tank, N-1 grades of gravity washing tanks, and so on, first order gravity washing tank, size mixing device, until in separator, from
The wash water overflowed in separator enters in wash water retracting device.Using the technical program, what wash water feedway provided
Wash water first passes through N grades of gravity washing tanks, and the overflowing liquid of N grades of gravity washing tanks provides wash water for N-1 grades of gravity washing tanks,
And so on, the wash water of the overflowing liquid of second level gravity washing tank as first order gravity washing tank, first order gravity washing tank
Overflowing liquid as the water of sizing mixing needed for size mixing device, the flow direction of slurry and the flow direction of wash water on the contrary, can reduce
The usage amount of wash water improves washing effect, and can ensure the concentration of the lithia in the wash water of recycling, reduces subsequent evaporation
The energy consumption of recovery process.
Preferably, the wash water feedway can individually give level-one gravity washing tank or multistage gravity washing tank or surge tank
Supply water, wash water that the wash water that is overflowed from the level-one gravity washing tank individually to supply water or multistage gravity washing tank overflow go out and
The wash water gone out from separator overflow enters in wash water retracting device.
Preferably, the liquid outlet of the centrifuge is connected to wash water feedway, and the wash water feedway includes wash water
Slot.
Preferably, the size mixing device includes surge tank and the sink of sizing mixing being connect with surge tank；In the surge tank
It is provided with agitating device.
Preferably, the separator includes knockout drum, and the knockout drum includes tank body I, be provided in the tank body I by
The target page I that target drone I is driven by agitating shaft I, is provided with the central tube I being connected to tank body I in the tank body I, on the tank body I
It is provided with the slurry inlet tube I being connected to central tube I, slurry outlet I and overflow outlet I are additionally provided on the tank body I.It adopts
With the technical program, the slurry mixed up from surge tank is introduced into central tube I by slurry inlet tube I, under the action of central tube I
Turbulent flow is formed, is then entered in tank body I by the lower end of central tube I, the wash water in the tank body I flow to from overflow outlet I and washes
In water recovery device, deposition forms thick slurry and enters in gravity wash mill downwards under the effect of gravity for particulate matter in slurry.Institute
It states in knockout drum and is divided into three layers according to material situation, be from top to bottom supernatant layer, settled layer and thick slurry layer.
Preferably, the tank body I includes cylinder I and the hypocentrum I being connect with cylinder I, and the central tube I is fixedly installed
On the top of cylinder I, the overflow outlet I is arranged on the top of cylinder I；The target page I is arranged in hypocentrum I, the target
Machine I is arranged in the top of cylinder I, and the agitating shaft I is stretched into across central tube I in hypocentrum I, and the setting of the slurry outlet I exists
The lower part of centrum I.
Preferably, the side wall of the target page I and hypocentrum I is arranged in parallel.
Preferably, the gravity washing tank includes tank body II, is provided in the tank body II and passes through agitating shaft by target drone II
The target page II of II driving, is provided with the central tube II be connected to tank body II in the tank body II, be provided on the tank body II and
The slurry inlet tube II and wash water inlet tube that central tube II is connected to, are additionally provided with slurry outlet II and overflow on the tank body II
Outlet II.Using the technical program, slurry is introduced into central tube II by slurry inlet tube II, and wash water is first by wash water inlet tube
Into central tube II, turbulent flow is formed under the action of central tube II, is then entered in tank body II by the lower end of central tube II, institute
The wash water stated in tank body II is flowed out from overflow outlet II, and deposition forms thick slurry to the particulate matter in slurry downwards under the effect of gravity.
Is divided into three layers according to material situation in the gravity washing tank, is from top to bottom supernatant layer, settled layer and thick slurry layer.
Preferably, the tank body II includes cylinder II and the hypocentrum II being connect with cylinder II, and the central tube II is solid
Fixed to be arranged on the top of cylinder II, the overflow outlet II is arranged on the top of cylinder II；The target page II is arranged in hypocentrum
In II, the target drone II is arranged in the top of cylinder II, and the agitating shaft II is stretched into across central tube II in hypocentrum II, described
Slurry outlet II is arranged in the lower part of centrum II.
Preferably, the side wall of the target page II and hypocentrum II is arranged in parallel.
Preferably, into the slurry liquid-solid ratio 2.5-3.5 in the central tube of knockout drum I:1, slurry solid phase grain size is 150-
200 mesh, solid phase sinking speed is 8-12s/m in knockout drum, the slurry liquid-solid ratio 0.8-1.2 flowed out from knockout drum:1.
Preferably, into the slurry liquid-solid ratio 2.5-3.5 in the central tube II in gravity washing tank:1, slurry solid phase grain size is
150-200 mesh, the solid phase sinking speed in gravity washing tank are 8-12s/m, the slurry liquid-solid ratio flowed out from gravity washing tank
0.8-1.2:1。
Preferably, the centrifuge is horizontal centrifuge, and the water content of the lithium slag after centrifugation is less than 10%.
It can be seen that compared with prior art, the present invention with substantive distinguishing features outstanding and significant progress, implement
Advantageous effect be also obvious.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the knockout drum in Fig. 1；
Fig. 3 is the structural schematic diagram of level-one gravity washing tank in Fig. 1；
Fig. 4 is the structural schematic diagram of two level gravity washing tank in Fig. 1.
In figure：1- surge tanks, 2- knockout drums, 2.1- cylinders I, 2.2- hypocentrums I, 2.3- slurries inlet tube I, 2.4- overflows
Export I, 2.5- slurry outlets I, 2.6- central tubes I, 2.7- target drones I, 2.8- transmission shafts I, 2.9- targets leaf I, 3- wash waters recycling dress
It sets, 4- level-one gravity washing tanks, 4.1- cylinders II, 4.2- hypocentrums II, 4.3- slurries inlet tube II, 4.4- overflows outlet II,
4.5- slurry outlets II, 4.6- central tubes II, 4.7- target drones II, 4.8- transmission shafts II, 4.9- targets leaf II, 4.10- wash water imports
Pipe, 5- size mixing sink, 6- two level gravity washing tanks, 6.1- cylinders II, 6.2- hypocentrums II, 6.3- slurries inlet tube II, 6.4-
Overflow outlet II, 6.5- slurry outlets II, 6.6- central tubes II, 6.7- target drones II, 6.8- transmission shafts II, 6.9- targets leaf II,
6.10- wash water inlet tubes, 7- wash water slots, 8- centrifuges, 9- pumps.
Specific implementation mode
Embodiment 1
As shown, a kind of for the separation of ore method lithium salts production lithium slag, washing system, including size mixing device, separator,
Gravity wash mill, centrifuge, wash water feedway and wash water retracting device, the size mixing device are connected to separator,
The separator is connected to gravity wash mill, and the gravity wash mill is connected to centrifuge；According to the flowing side of slurry
Pass through separator successively to, the slurry that size mixing device recalls, gravity wash mill, until in centrifuge, after separating, washing
Lithium slag is discharged from centrifuge；The wash water feedway provides wash water to size mixing device, gravity wash mill.
Preferably, the gravity wash mill includes sequentially connected N grades of gravity washing tank（N≥2）, the first order weight
Power washing tank is connected to separator, and the N grades of gravity washing tanks are connected to seperator.
Preferably, according to the flow direction of wash water, the wash water of the wash water feedway supply passes through N grades of gravity successively
Washing tank, N-1 grades of gravity washing tanks, and so on, first order gravity washing tank, size mixing device, until in separator, from
The wash water overflowed in separator enters in wash water retracting device.
In the technical scheme, the liquid outlet of the centrifuge is connected to wash water feedway, the wash water feedway
Including wash water slot.Preferably, the centrifuge is horizontal centrifuge, and the water content of the lithium slag after centrifugation is less than 10,
The building material products such as cement can be produced by not needing dehydration.
In the technical scheme, the size mixing device includes surge tank and the sink of sizing mixing being connect with surge tank；It is described
Agitating device is provided in surge tank.
In the technical scheme, the separator includes knockout drum, and the knockout drum includes tank body I, in the tank body I
It is provided with the target page I driven by agitating shaft I by target drone I, the central tube I being connected to tank body I, institute are provided in the tank body I
The lower end for stating central tube I is provided with material hole, and the slurry inlet tube I being connected to central tube I is provided on the tank body I, described
Slurry outlet I and overflow outlet I are additionally provided on tank body I.The slurry mixed up from surge tank is introduced by slurry inlet tube I
Central tube I forms turbulent flow under the action of central tube I, is then entered in tank body I by the lower end of central tube I, the tank body I
Interior wash water is flow to from overflow outlet I in wash water retracting device, and deposition is formed the particulate matter in slurry downwards under the effect of gravity
Thick slurry enters in gravity wash mill.It is divided into three layers according to material situation in the knockout drum, is from top to bottom supernatant layer, sedimentation
Layer and thick slurry layer.
Preferably, the tank body I includes cylinder I and the hypocentrum I being connect with cylinder I, and the central tube I is fixedly installed
On the top of cylinder I, the overflow outlet I is arranged on the top of cylinder I；The target page I is arranged in hypocentrum I, the target
Machine I is arranged in the top of cylinder I, and the agitating shaft I is stretched into across central tube I in hypocentrum I, and the setting of the slurry outlet I exists
The lower part of centrum I.
Preferably, the side wall of the target page I and hypocentrum I is arranged in parallel.
In the technical scheme, the gravity washing tank includes tank body II, is provided in the tank body II and is led to by target drone II
The target page II of the driving of agitating shaft II is crossed, the central tube II being connected to tank body II, the central tube II are provided in the tank body II
Lower end be provided with material hole, the slurry inlet tube II being connected to central tube II and wash water import are provided on the tank body II
It manages, slurry outlet II and overflow outlet II is additionally provided on the tank body II.Using the technical program, slurry by slurry into
Mouth pipe II is introduced into central tube II, and wash water is introduced into central tube II by wash water inlet tube, is formed under the action of central tube II
Then turbulent flow is entered by the lower end of central tube II in tank body II, the wash water in the tank body II is starched from II outflow of overflow outlet
Deposition forms thick slurry to particulate matter in material downwards under the effect of gravity.It is divided into three according to material situation in the gravity washing tank
Layer is from top to bottom supernatant layer, settled layer and thick slurry layer.
Preferably, the tank body II includes cylinder II and the hypocentrum II being connect with cylinder II, and the central tube II is solid
Fixed to be arranged on the top of cylinder II, the overflow outlet II is arranged on the top of cylinder II；The target page II is arranged in hypocentrum
In II, the target drone II is arranged in the top of cylinder II, and the agitating shaft II is stretched into across central tube II in hypocentrum II, described
Slurry outlet II is arranged in the lower part of centrum II.
Preferably, the side wall of the target page II and hypocentrum II is arranged in parallel.
In the technical scheme, the gravity wash mill includes sequentially connected two level gravity washing tank, and respectively
Level-one gravity washing tank and second level gravity washing tank.The slurry mixed up in surge tank enters knockout drum by slurry inlet tube I
Turbulent flow is formed in interior central tube I, then out of, the lower end of central tube I enters knockout drum tank body I, wash water in tank body I from
Overflow outlet I is flow in wash water retracting device, and the thick slurry deposited in tank body I is washed by slurry outlet I and first order gravity
The slurry inlet tube II of tank enters in the central tube II in first order gravity washing tank, goes out from the overflow of second level gravity washing tank
The wash water that II overflow of mouth goes out enters the central tube of first order gravity washing tank from the wash water inlet tube on first order gravity washing tank
In II, then out of, the lower end of the central tube II of first order gravity washing tank enters first order gravity washing tank tank body II, the
Wash water in the tank body II of level-one gravity washing tank is flow to by the overflow outlet II of first order gravity washing tank sizes mixing in sink,
Thick slurry in the tank body II of first order gravity washing tank passes through the slurry outlet II of first order gravity washing tank and second level weight
The slurry inlet tube II of power washing tank enters in the central tube II in the gravity washing tank of the second level, and the wash water in wash water slot passes through the
Wash water inlet tube on two level gravity washing tank enters in the central tube II in the gravity washing tank of the second level, the washing of second level gravity
The thick slurry deposited in the tank body II of tank enters centrifuge by the slurry outlet II on the gravity washing tank of the second level, from centrifuge point
The liquid separated out enters wash water slot.
Preferably, the knockout drum is made of ordinary carbon steel material, and the ratio of height to diameter of cylinder II is 0.6:1-0.8:1, lower vertebra
The angle of body II and cylinder II is 38 ° -40 °, the diameter of a diameter of cylinder I of the central tube II 1 to three/6th/
One, highly it is a diameter of 1000mm-2000mm of central tube II, 2500mm-3500mm, slurry inlet tube II presses flow velocity 1.3m/
S-2.0m/s values, installation site press flow velocity 1.3m/s-2.0m/s away from II top 1000mm-1500mm of cylinder, wash water inlet tube
Value, installation site is away from II top 1000mm-1500mm of cylinder；The caliber of overflow outlet II according to 0.6m/s-1.2m/s values,
Installation site is away from II top 500mm-1000mm of cylinder；The caliber of slurry outlet II is 200mm-400mm, and the target leaf II is arranged
There are 4-8 and be evenly distributed on transmission shaft II, the rotating speed of rotation axis I is 0.1 r/min-0.13r/min.The gravity
The principle of washing tank is to generate relative motion with the density contrast of solid particle using liquid to detach, and clear liquid overflows, solid
Grain is with certain deposition rate.
Preferably, the gravity washing tank is made of ordinary carbon steel material, and the ratio of height to diameter of cylinder I is 0.6:1-0.8:1, under
The angle of centrum I and cylinder I is 38 ° -40 °, the diameter of a diameter of cylinder I of the central tube I 1 to three/6th/
One, highly it is a diameter of 1000mm-2000mm of central tube I, 2500mm-3500mm, slurry inlet tube I presses flow velocity 1.3m/s-
2.0m/s values, installation site is away from I top 1000mm-1500mm of cylinder；The caliber of overflow outlet I is according to 0.6m/s-1.2m/s
Value, installation site is away from I top 500mm-1000mm of cylinder；The caliber of slurry outlet I is 200mm-400mm, and the target leaf I is set
It is equipped with 4-8 and is evenly distributed on transmission shaft I, the rotating speed of rotation axis I is 0.1 r/min-0.13r/min.Described point
Principle from tank is to generate relative motion with the density contrast of solid particle using liquid to detach, and clear liquid overflows, solid particle
With certain deposition rate.
Produce separation, the washing of 10,000 tons of lithium slags per year：
A diameter of 3.3m of surge tank is highly 4m, and slurry is delivered to the pump discharge of sizing mixing that knockout drum uses from surge tank
100m3/h, lift 25m, slurry liquid-solid ratio 2.8-3.0:1, slurry solid phase grain size is 150-200 mesh.
Knockout drum, level-one gravity washing tank, two level gravity washing tank：Knockout drum and the charging of two-stage gravity washing tank slurry are about
It is 45 cubes ms/h, 1.5 meters or so clear liquid layer heights, settled layer sedimentation is kept on the top of knockout drum and gravity washing tank
Time is maintained at 2 to 2.5 hours.
Size mixing sink volume be 300m3；Target leaf is provided with 4, rotating speed 0.13r/min；Cylinder I and cylinder II it is straight
Diameter is 6.2m, and the height of cylinder I and cylinder II is 4.76m；A diameter of 1.5m of central tube I and central tube II, central tube I is in
The height of heart cylinder II is 3m.
The flow that the wash water sized mixing in sink is delivered to the water pump of sizing mixing used in surge tank is 220m3/h, lift
15m。
The model LW450 of the horizontal centrifuge.
The volume of the wash water slot is 200m3.
The flow that wash water in wash water slot is delivered to the wash water pump used in the gravity washing tank of the second level is 35m3/h, is raised
Journey 15m.
The content of lithium sulfate is 10.2% in the wash water recycled in wash water retracting device；The water content of lithium slag after centrifugation
It is down to 0.018% for 8%, residual oxidation lithium content.
Produce separation, the washing of 20,000 tons of lithium slags per year：
A diameter of 4.2m of surge tank is highly 5m, and slurry is delivered to the pump discharge of sizing mixing that knockout drum uses from surge tank
180m3/h, lift 25m, slurry liquid-solid ratio 3.0-3.2:1, slurry solid phase grain size is 150-200 mesh.
Knockout drum, level-one gravity washing tank, two level gravity washing tank：Knockout drum and the charging of two-stage gravity washing tank slurry are about
It is 90 cubes ms/h, 1.5 meters or so clear liquid layer heights, settled layer sedimentation is kept on the top of knockout drum and gravity washing tank
Time is maintained at 2 to 2.5 hours.
Size mixing sink volume be 300m3；Target leaf is provided with 6, rotating speed 0.1r/min；Cylinder I and cylinder II it is straight
Diameter is 7.6m, and the height of cylinder I and cylinder II is 6m；A diameter of 1.5m of central tube I and central tube II, central tube I and center
The height of cylinder II is 3m.
The flow that the wash water sized mixing in sink is delivered to the water pump of sizing mixing used in surge tank is 220m3/h, lift
15m。
The model LW450 of the horizontal centrifuge.
The volume of the wash water slot is 200m3.
The flow that wash water in wash water slot is delivered to the wash water pump used in the gravity washing tank of the second level is 35m3/h, is raised
Journey 15m.
The content of lithium sulfate is 9.8% in the wash water recycled in wash water retracting device；The water content of lithium slag after centrifugation is
7%, residual oxidation lithium content is down to 0.017%.
Produce separation, the washing of 30,000 tons of lithium slags per year：
A diameter of 4.5m of surge tank is highly 5.4m, and slurry is delivered to the pump discharge of sizing mixing that knockout drum uses from surge tank
270m3/h, lift 25m, slurry liquid-solid ratio 2.7-2.9:1, slurry solid phase grain size is 150-200 mesh.
Knockout drum, level-one gravity washing tank, two level gravity washing tank：Knockout drum and the charging of two-stage gravity washing tank slurry are about
It is 135 cubes ms/h, 1.5 meters or so clear liquid layer heights, settled layer sedimentation is kept on the top of knockout drum and gravity washing tank
Time is maintained at 2 to 2.5 hours.
Size mixing sink volume be 400m3；Target leaf is provided with 8, rotating speed 0.1r/min；Cylinder I and cylinder II it is straight
Diameter is 8.8m, and the height of cylinder I and cylinder II is 6.9m；A diameter of 1.5m of central tube I and central tube II, central tube I is in
The height of heart cylinder II is 3m.
The flow that the wash water sized mixing in sink is delivered to the water pump of sizing mixing used in surge tank is 550m3/h, lift
15m。
The model LW630 of the horizontal centrifuge.
The volume of the wash water slot is 300m3.
The flow that wash water in wash water slot is delivered to the wash water pump used in the gravity washing tank of the second level is 55m3/h, is raised
Journey 15m.
The content of lithium sulfate is 10% in the wash water recycled in wash water retracting device；The water content of lithium slag after centrifugation is
8%, residual oxidation lithium content is down to 0.018%.
Embodiment 2
Difference from example 1 is that：The wash water feedway can individually give level-one gravity washing tank or multistage gravity
Washing tank or surge tank supply water, and the wash water or multistage gravity washing tank overflowed from the level-one gravity washing tank individually to supply water overflows
The wash water of outflow and the wash water gone out from separator overflow enter in wash water retracting device.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, identical similar portion refers to mutually between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein, wound
The characteristics of property made consistent widest range.
Claims (10)
1. one kind is detached for ore method lithium salts production lithium slag, washing system, it is characterized in that：Including size mixing device, separation dress
It sets, gravity wash mill, centrifuge, wash water feedway and wash water retracting device, the size mixing device connect with separator
Logical, the separator is connected to gravity wash mill, and the gravity wash mill is connected to centrifuge；According to the flowing of slurry
Direction, the slurry that size mixing device recalls pass through separator, gravity wash mill, until in centrifuge successively；The wash water supplies
To device wash water is provided to size mixing device, gravity wash mill；The wash water and/or gravity wash mill that separator overflow goes out overflow
The wash water that the wash water and/or centrifuge of outflow are isolated enters in wash water retracting device.
2. it is according to claim 1 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：It is described
Gravity wash mill includes sequentially connected N grades of gravity washing tank（N≥2）, the first order gravity washing tank and separator
Connection, the N grades of gravity washing tanks are connected to seperator.
3. it is according to claim 2 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：According to
The wash water of the flow direction of wash water, the wash water feedway supply passes through N grades of gravity washing tanks, N-1 grades of gravity successively
Washing tank, and so on, first order gravity washing tank, size mixing device overflows until in separator from separator
Wash water enter in wash water retracting device.
4. it is according to claim 2 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：Wash water
Feedway can individually give level-one gravity washing tank or multistage gravity washing tank or surge tank to supply water, from the level-one weight individually to supply water
Wash water or the multistage gravity washing tank overflow wash water gone out that power washing tank overflows and the wash water gone out from separator overflow
Into in wash water retracting device.
5. it is according to claim 1 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：It is described
The liquid outlet of centrifuge is connected to wash water feedway, and the wash water feedway includes wash water slot；Preferably, the dress of sizing mixing
Set the sink of sizing mixing being connect including surge tank and with surge tank；It is provided with agitating device in the surge tank.
6. it is according to claim 1 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：It is described
Separator includes knockout drum, and the knockout drum includes tank body I, is provided in the tank body I and is driven by agitating shaft I by target drone I
Dynamic target page I is provided with the central tube I being connected to tank body I in the tank body I, is provided on the tank body I and central tube I connects
Logical slurry inlet tube I is additionally provided with slurry outlet I and overflow outlet I on the tank body I；Preferably, the tank body I wraps
Cylinder I and the hypocentrum being connect with cylinder I I are included, the central tube I is fixed at the top of cylinder I, the overflow outlet
I is arranged on the top of cylinder I；The target page I is arranged in hypocentrum I, and the target drone I is arranged in the top of cylinder I, described to stir
It mixes axis I to stretch into hypocentrum I across central tube I, the slurry outlet I is arranged in the lower part of centrum I；Preferably, the target page I
It is arranged in parallel with the side wall of hypocentrum I.
7. it is according to claim 2 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：It is described
Gravity washing tank includes tank body II, and the target page II driven by agitating shaft II by target drone II is provided in the tank body II, described
The central tube II being connected to tank body II is provided in tank body II, be provided on the tank body II slurry that is connected to central tube II into
Mouthful pipe II and wash water inlet tube are additionally provided with slurry outlet II and overflow outlet II on the tank body II；Preferably, the tank
Body II is fixed at the top of cylinder II including cylinder II and the hypocentrum II being connect with cylinder II, the central tube II,
The overflow outlet II is arranged on the top of cylinder II；The target page II is arranged in hypocentrum II, and the setting of the target drone II exists
The top of cylinder II, the agitating shaft II are stretched into across central tube II in hypocentrum II, and the slurry outlet II is arranged in centrum
II lower part；Preferably, the side wall of the target page II and hypocentrum II is arranged in parallel.
8. it is according to claim 6 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：Into
Slurry liquid-solid ratio 2.5-3.5 in the central tube I of knockout drum:1, slurry solid phase grain size is 150-200 mesh, the solid phase in knockout drum
Sinking speed is 8-12s/m, the slurry liquid-solid ratio 0.8-1.2 flowed out from knockout drum:1.
9. it is according to claim 7 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：Into
Slurry liquid-solid ratio 2.5-3.5 in central tube II in gravity washing tank:1, slurry solid phase grain size is 150-200 mesh, and gravity is washed
It is 8-12s/m to wash the solid phase sinking speed in tank, the slurry liquid-solid ratio 0.8-1.2 flowed out from gravity washing tank:1.
10. it is according to claim 1 for the separation of ore method lithium salts production lithium slag, washing system, it is characterized in that：It is described
Centrifuge is horizontal centrifuge, and the water content of the lithium slag after centrifugation is less than 10%.
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|---|---|---|---|---|
| CN101629238A (en) * | 2009-07-30 | 2010-01-20 | 浙江华友钴业股份有限公司 | Residue washing method in cobalt hydrometallurgy industry |
| CN102618720A (en) * | 2012-04-28 | 2012-08-01 | 长沙有色冶金设计研究院有限公司 | Method for backwash leaching and washing mineral leached materials |
| CN206591153U (en) * | 2017-01-24 | 2017-10-27 | 汪剑岭 | Adverse current is continuous to leach washing facility |
| CN107857283A (en) * | 2017-12-13 | 2018-03-30 | 清华大学 | It is a kind of that the isolation technics method for preparing battery-level lithium carbonate is consolidated based on selectivity |
| CN209128049U (en) * | 2018-07-27 | 2019-07-19 | 山东鲁北企业集团总公司 | One kind is for the separation of ore method lithium salts production lithium slag, washing system |
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2018
- 2018-07-27 CN CN201810843736.3A patent/CN108658098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629238A (en) * | 2009-07-30 | 2010-01-20 | 浙江华友钴业股份有限公司 | Residue washing method in cobalt hydrometallurgy industry |
| CN102618720A (en) * | 2012-04-28 | 2012-08-01 | 长沙有色冶金设计研究院有限公司 | Method for backwash leaching and washing mineral leached materials |
| CN206591153U (en) * | 2017-01-24 | 2017-10-27 | 汪剑岭 | Adverse current is continuous to leach washing facility |
| CN107857283A (en) * | 2017-12-13 | 2018-03-30 | 清华大学 | It is a kind of that the isolation technics method for preparing battery-level lithium carbonate is consolidated based on selectivity |
| CN209128049U (en) * | 2018-07-27 | 2019-07-19 | 山东鲁北企业集团总公司 | One kind is for the separation of ore method lithium salts production lithium slag, washing system |
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