CN105645449B - A kind of system and method for aluminium electrolytic carbon slag recycling ice crystal - Google Patents
A kind of system and method for aluminium electrolytic carbon slag recycling ice crystal Download PDFInfo
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- CN105645449B CN105645449B CN201610224391.4A CN201610224391A CN105645449B CN 105645449 B CN105645449 B CN 105645449B CN 201610224391 A CN201610224391 A CN 201610224391A CN 105645449 B CN105645449 B CN 105645449B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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- C01P2006/80—Compositional purity
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Abstract
The present invention relates to a kind of system and methods of aluminium electrolytic carbon slag recycling ice crystal, belong to electrolytic aluminium waste gurry processing technology field.The present invention aluminium electrolytic carbon slag recycling ice crystal system, including be sequentially connected leaching storehouse, flotation unit, equipment for separating liquid from solid.The system of the aluminium electrolytic carbon slag recycling ice crystal of the present invention can carry out aluminium electrolytic carbon slag using floatation the recycling of ice crystal, the content and impurity component of ice crystal in useless carbon slag can be directed to, the thoroughly flotation of ice crystal in useless carbon slag is recycled, the rate of recovery of ice crystal in useless carbon slag can be increased substantially.
Description
Technical field
The present invention relates to a kind of system and methods of aluminium electrolytic carbon slag recycling ice crystal, belong at electrolytic aluminium waste gurry
Manage technical field.
Background technology
Aluminium electrolytic breeze falls into fused electrolyte and floats for the carbon block peeled off during Aluminum Electrolysis Production from anode
The waste residue of its surface generation is floated over, main component is carbon and electrolyte, and wherein electrolyte is mainly ice crystal, the weight of ice crystal
Percentage is generally 40% ~ 60%.Fluxing agent of the ice crystal as Aluminum Electrolysis Production process, cost is higher during use, from useless breeze
Middle recycling ice crystal therein, uses as fluxing agent for returning to electrolytic cell, can reduce Aluminum Electrolysis Production to a certain extent
Cost, and waste sludge discharge is reduced to the issuable negative effect of ambient enviroment.
The content of the invention
It is an object of the invention to provide one kind can recycle ice crystal and the rate of recovery and pure from aluminium electrolytic carbon slag
The system of the higher aluminium electrolytic carbon slag recycling ice crystal of degree, the present invention also aims to provide a kind of aluminium electrolytic
The method that carbon slag recycles ice crystal.
In order to achieve the goal above, the technical solution of the system of the aluminium electrolytic carbon slag recycling ice crystal of the present invention is such as
Under：
A kind of system of aluminium electrolytic carbon slag recycling ice crystal, including be sequentially connected leaching storehouse, flotation unit, solid-liquid
Separator.
The system of the aluminium electrolytic carbon slag recycling ice crystal of the present invention can utilize floatation to aluminium electrolytic carbon slag
The recycling of ice crystal is carried out, the content and impurity component of ice crystal in useless carbon slag can be directed to, the ice crystal in useless carbon slag is thorough
The flotation recycling of bottom ground, can increase substantially the rate of recovery of ice crystal in useless carbon slag.The aluminium electrolytic carbon slag recycling of the present invention
The system of ice crystal, which is provided with, leaches storehouse and flotation unit, slurrying, leaching process is made to carry out in one apparatus, flotation is another
It is carried out in a device, avoids influencing each other between two processes, and slurrying leaching can be carried out in two devices simultaneously
Go out and flotation, improve the continuity of technique, improve recovery processing efficiency.In addition, process and flotation circuit point are leached in slurrying
It is not carried out in storehouse and flotation unit is leached, also avoids being both needed to after being recycled each time that reaction unit is cleaned to disappear
Except flotation device leaches slurrying the influence of process.
Since the generation of gas in floatation process causes requirement of the technique to device also to be distinguished, flotation unit is pressure-resistant
Device is provided with exhaust apparatus on flotation unit, leaches storehouse and above-mentioned setting is then not required.
The flotation unit is the more than two flotation mechanisms being sequentially connected, and the flotation mechanism is flotation device or floating
Select column.Preferably, the flotation mechanism is four flotation devices being sequentially connected, and can carry out " roughing-preliminary selected-smart again
Select-scan " floatation process, improve flotation efficiency, also improve ice crystal purity.It is connected between two adjacent flotation devices
Mortar pump.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes reaction warehouse, is provided with and adds on the reaction warehouse
Sour mouth, the discharge port for leaching storehouse are connected with the charge door of the flotation unit, the discharge port and solid-liquid of the flotation unit
The charge door of separator is connected, and the solid outlet of the equipment for separating liquid from solid is connected with the charge door of reaction warehouse, reaction warehouse
Discharge port connects the charge door of equipment for separating liquid from solid.
The equipment for separating liquid from solid includes the first equipment for separating liquid from solid and the second equipment for separating liquid from solid, the first separation of solid and liquid dress
The charge door put is connected with the discharge port of flotation unit, the solid outlet of the first equipment for separating liquid from solid and the charge door phase of reaction warehouse
Even, the discharge port of reaction warehouse is connected with the charge door of the second equipment for separating liquid from solid.First equipment for separating liquid from solid is filter press.Second
Equipment for separating liquid from solid is centrifugal separator.Dryer is connected on the solid outlet of centrifugal separator.Ton is connected on dryer
Chartered plane.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes buffer unit, the upper strata of the flotation unit
Foamed slurry outlet is connected with buffer unit charge door, and the discharge port of buffer unit is connected with equipment for separating liquid from solid charge door.When
When flotation unit includes multiple flotation mechanisms, the upper slurry of each flotation mechanism exports the charge door phase with buffer unit
Even.
Buffer unit includes the first buffer pool, the second buffer pool, the 3rd buffer pool, the first buffer pool and the last one flotation
The discharge port of machine is connected, and for preparing purification slurry, the second buffer pool is connected with the upper foam outlet of each flotation device, uses
To collect upper foam slurry.The charge door of 3rd buffer pool is connected with the discharge port of reaction warehouse, the discharge port of the 3rd buffer pool
It is connected with the charge door of the second equipment for separating liquid from solid.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes circulating water pool, and the circulating water pool enters water
Mouth is connected with the liquid outlet of equipment for separating liquid from solid, and the water outlet of circulating water pool is connected with the charge door of reaction warehouse.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes the feeding device being connected with leaching storehouse, conveying
Device includes crusher, block storehouse, batcher, ball mill, filler bin.
Jigging conveyer is connected on crusher, raw material conveyer belt is connected on jigging conveyer, raw material is through feedstock transportation
Band is sent to jigging conveyer, and crusher is sent by jigging conveyer.Deironing apparatus is provided on jigging conveyer, for removing original
Iron block in material.Crusher lower is provided with belt conveyor and rolling screen.
Block storehouse lower part is provided with batcher, and the discharge end of batcher is connected with the feed inlet of ball mill, to by block
Fritter block in storehouse is delivered to ball mill and carries out powder processed.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes dust-extraction unit, and dust-extraction unit can will be collected
The dust arrived is sent into feeding device.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes acid storage tank, and acid storage tank passes through pipeline and acid adding
Mouth is connected.
It leaches in storehouse, reaction warehouse, buffer unit and is both provided with blender.It leaches and temperature control dress is both provided in storehouse, reaction warehouse
It puts, including temperature feeler lever and temperature controller, is detected and controlled to the temperature to the material in reaction warehouse.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention further includes monitor control system.Block storehouse and filler bin
Top is both provided with diffusing reflection rangefinder.Diffusing reflection rangefinder passes through monitoring and controlling system to detect the height of materials in storehouse
System is scaled the quality of material in storehouse.Leach storehouse, reaction warehouse, circulating water pool, buffer unit, crusher, block storehouse, ball mill,
Bale breaker, acid storage tank, filter press, centrifugal separator, dryer, ton chartered plane, raw material conveyer belt, jigging conveyer, Belt Conveying
Machine, mixed dynamic screening machine, screw conveyor, deduster, batcher inlet and outlet and its between connecting pipe on be both provided with electricity
Dynamic valve, motor-driven valve is connected with monitor control system, to control the opening and closing of each motor-driven valve.
The device of the aluminium electrolytic carbon slag recycling ice crystal of the present invention can be to the major part in aluminium electrolytic carbon slag
Ice crystal carries out recycling, is calculated according to the average content of ice crystal in useless carbon slag for 40 ~ 60%, currently on the market ice crystal
The average price of stone is calculated, 1000 yuan/ton of production cost, then every year at 5000 yuan or more with handling 4000 tons of useless carbon slags every year
The output value more than 8,000,000, profit is more than 4,000,000.The ice crystal that obtained useless carbon slag regenerates can be arrived with direct reuse
During Aluminum Electrolysis Production, it is also possible to make opacifier of manufacture glass and enamel etc..Further, the carbon mud that flotation obtains can use
The raw material for making fuel and carbon element factory uses.In addition, the waste water generated can be recycled, and product quality is not influenced, both saved into
This, and meet the requirement of environmental protection.
The technical solution of the method for the aluminium electrolytic carbon slag recycling ice crystal of the present invention is as follows：
A kind of method of aluminium electrolytic carbon slag recycling ice crystal, including：
Useless carbon ground-slag material with water is mixed, must treat flotation slurry, after treating flotation slurry progress flotation using flotation agent, is obtained
Upper foam slurry and lower slurry；Lower slurry is dehydrated to get ice crystal.
First slurry is made in useless carbon ground-slag material and water by the method for the aluminium electrolytic carbon slag recycling ice crystal of the present invention, and making can
Solubility impurity dissolves out as far as possible, is upper foam mud and lower slurry by slurry flotation then by flotation, will be miscellaneous in slurry
Matter removes as much as possible, and the purity of obtained ice crystal is also very high, moreover, the method for the present invention can be by the ice in useless carbon slag
Spar farthest recycling, the rate of recovery are higher.
It is above-mentioned to treat that flotation slurry is transferred in flotation unit and carry out flotation.
Above-mentioned useless carbon ground-slag material stirs 10min after being mixed with water, can improve the mixing uniformity of the two.Generally,
The amount of water is added to be more than 10 times or more of useless carbon slag amount, it is preferred that the mass ratio of useless carbon slag and water is 1:10-20.
The flotation is flotation more than two-stage, and the flotation agent at least used in two-stage flotation is different.
The flotation more than twice is four flotation.The step of level Four flotation is：To treating to add in first in flotation slurry
Flotation agent carries out level-one roughing, obtains the first upper foam slurry and the first lower slurry, second is added in into the first lower slurry
Flotation agent progress two level is selected, obtains the second upper foam slurry and the second lower slurry, and the 3rd is added in into the second lower slurry
Flotation agent progress three-level is selected, obtains the 3rd upper foam slurry and the 3rd lower slurry, and the 4th is added in into the 3rd lower slurry
Flotation agent carries out level Four and scans, and obtains the 4th upper foam slurry and the 4th lower slurry.By level-one roughing, two level it is selected, three
After the selected and level Four of grade is scanned, carbon and other impurities in useless carbon slurry material are removed by upper foam slurry, are improved
The rate of recovery of ice crystal and the purity of recycling ice crystal product.Preferably, the flotation device used in level Four flotation is all different.
Upper foam slurry is separated with lower slurry and discharged from flotation unit after flotation each time.
The flotation agent includes collecting agent and foaming agent, and the collecting agent is kerosene, appointing in diesel oil, XF-3 type collecting agents
Meaning is a kind of.The foaming agent is any one in No. 2 oil, terpenic oil, camphorated oil, methanol, pyridine, BK-201 type foaming agents.
The addition of flotation agent is to be controlled by the addition speed and time of flotation agent.Generally, flotation agent adds dropwise
Enter, the addition 30-180mL flotation agent per minute in 1 ton of slurry.Addition speed is 3-6mL/（min·t）, the time of dropwise addition
For 10-30min.
Per level-one flotation time in more than 10min, general is preferably 10-30min.It is further preferred that level-one roughing
Time for 30min, the two level selected time is 20min, and the three-level selected time is 10min, and the time that level Four is scanned is
10min。
By the first upper foam slurry, the second upper foam slurry, the 3rd upper foam slurry, the 4th upper foam slurry
Merge, dehydration obtains carbon mud.Carbon mud is extracted from upper foam slurry, realizes the further recycling of useless carbon slag.
In order to further be purified to ice crystal crude product, the lower slurry finally obtained is added into water, purification slurry is made,
Acid is added in, is leached, dehydration obtains ice crystal.The mass ratio of the lower slurry finally obtained and water is 1:3-5.The leaching
The time gone out is 10-30min, is preferably 30min.The acid is hydrochloric acid.The mass fraction of the hydrochloric acid is preferably 8-10%.Salt
The addition of acid is advisable using adjusting slurry pH as 4-6.
The dehydration is filtering or centrifuges.
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present invention can thoroughly recycle the ice crystal in useless carbon slag,
The rate of recovery is more than 90%, and organic efficiency is very high, is suitable for extensive process aluminum electrolytic waste residue.What the present invention finally obtained
The high purity 91.3% of ice crystal.
Description of the drawings
Fig. 1 is the structure diagram that the aluminium electrolytic carbon slag of the present invention recycles the embodiment of ice crystal stone system.
Specific embodiment
Technical scheme is further detailed with reference to specific embodiment.
The embodiment of the aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention：
As shown in Figure 1, the aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment includes the conveying being sequentially connected dress
It puts, leach storehouse 101, reaction warehouse 102, flotation unit, equipment for separating liquid from solid, acid-adding port is provided on reaction warehouse 102.Flotation unit
Including four flotation devices being sequentially connected：First flotation device 104, the second flotation device 105, the 3rd flotation device 106, the 4th flotation device
107, Pulp pump is provided between two neighboring flotation agent, and Pulp pump is connected by pipeline with flotation device, each flotation device is equal
Including four flotation cells, the discharge port for leaching storehouse 101 is connected with the charge door of the first flotation device.
Equipment for separating liquid from solid includes the first equipment for separating liquid from solid and the second equipment for separating liquid from solid, and the first equipment for separating liquid from solid is
Filter press is the first plate type pressure filter 201 and the second plate type pressure filter 202 in the present embodiment, the second equipment for separating liquid from solid be from
Centrifugal separator is horizontal centrifugal seperator 203 in the present embodiment.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment further includes buffer unit, and buffer unit includes three
Buffer pool：First buffer pool 401, the second buffer pool 402, the 3rd buffer pool 403 are both provided with stirring dress on three buffer pools
It puts.The charge door of first buffer pool is connected with the solid outlet of the first plate type pressure filter, the charge door of the first plate type pressure filter with
The discharge port of 4th flotation device is connected, while the discharge port of the first buffer pool passes through Pulp pump 103 and the charge door of reaction warehouse 102
It is connected.Foamed slurry outlet is both provided on four flotation devices, the upper foam slurry after flotation to be discharged.Second buffering
The charge door in pond is connected respectively by Pulp pump with the foamed slurry outlet of four flotation devices, the discharge port of the second buffer pool and the
The charge door of double-plate filter press is connected by Pulp pump.The charge door of 3rd buffer pool is connected with the discharge port of reaction warehouse 102,
The discharge port of 3rd buffer pool is connected with horizontal centrifugal seperator.It is connected with baking on the solid outlet of horizontal centrifugal seperator in turn
Dry machine 5, the 4th elevator 7, ton chartered plane 6, obtained ice crystal is dried, is packaged.Go out from the 4th flotation device discharge port
The lower slurry come is sent into the first buffer pool, the water of 3-5 times of quality is added to be made into the first plate type pressure filter, dewatered material residue
Slurry is sent into reaction warehouse 102, is sent into the 3rd buffer pool after acid adding stirring removal of impurities, is dried after the separation of horizontal centrifugal seperator
Dry, packing.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment further includes circulating water pool 8, and circulating water pool enters water
Mouth is connected with the liquid outlet of plate type pressure filter and horizontal centrifugal seperator, and the water outlet of circulating water pool is with leaching storehouse 101
Charge door is connected or can also set filler on storehouse 101 is leached, and is connected with the water outlet of circulating water pool.
Feeding device includes crusher 304, block storehouse 308, batcher 309, ball mill 306, filler bin 307, crusher
On be connected with jigging conveyer 302, be connected with raw material conveyer belt 301 on jigging conveyer, raw material is sent through raw material conveyer belt to shaking
Dynamic conveyer, is sent into crusher by jigging conveyer, deironing apparatus 303 is provided on jigging conveyer, for removing in raw material
Iron block, crusher is box crusher, and crusher lower is provided with belt conveyor 305 and rolling screen 306, drum screen
Select machine for convey with sieving approach after block sundries can simultaneously be removed, the screening to block is will to mix in the feed
Other wastes such as woven bag, vial are separated from block, on rolling screen by the first elevator 307 with
Block storehouse is connected, and is delivered to block storehouse to the block after rolling screen is sieved, block storehouse lower part is provided with batcher
309, the discharge end of batcher is connected with the feed inlet of ball mill, the block in block storehouse is delivered to ball mill system
Powder, the batcher in the present embodiment are electromagnetic feeder；Bistrique sieve is provided on ball mill, the 3rd spiral is connected on ball mill
Conveyer is connected with the second elevator 310 on the 3rd screw conveyor, and the second elevator is connected with filler bin, and filler bin passes through
3rd elevator 311 is connected with leaching storehouse 101.
The first screw conveyor is connected on first elevator, the first deduster 312 is connected on the first screw conveyor,
The dust that first deduster is collected is sent into the first elevator through screw conveyor；The second spiral is connected on 3rd screw conveyor
Conveyer is connected with the second deduster 313 on the second screw conveyor, and the dust that the second deduster is collected is through the second helical feed
Machine is sent into the 3rd screw conveyor.The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment further includes cleaning shaft, shakes
Dynamic conveyer, crusher, electromagnetic feeder, ball mill, leach storehouse 101, reaction warehouse 102 and cleaning shaft at belt conveyor
It is connected, the first deduster, the second deduster are also connected with cleaning shaft 314, by deduster treated dust-free air through wind
Machine 315 is sent into smoke stack emission to air.
First elevator, the second elevator, the 3rd elevator, the 4th elevator of the prior art all can be promoted
Machine is bucket elevator in the present embodiment.First deduster, the second deduster all can be deduster of the prior art,
It is pulse dust collector in the present embodiment.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment further includes acid storage tank 9, acid storage tank by pipeline with
Acid-adding port on reaction warehouse 102 is connected.
It leaches in storehouse 101, reaction warehouse 102 and is both provided with blender.
Diffusing reflection rangefinder is both provided at the top of block storehouse and filler bin, to detect the height of materials in storehouse, and is passed through
Monitor control system is scaled the quality of material in storehouse.Leach storehouse, reaction warehouse, circulating water pool, buffer pool, crusher, block storehouse,
Ball mill, acid storage tank, filter press, centrifugal separator, dryer, ton chartered plane, belt conveyor, rolling screen, helical feed
Machine, deduster, elevator, batcher inlet and outlet and its between connecting pipe on be both provided with motor-driven valve, motor-driven valve and prison
It surveys control system to be connected, to control the opening and closing of each motor-driven valve.Leach the motor-driven valve between storehouse 101 and circulating water pool
For check valve.
Leach storehouse 101, reaction warehouse 102 side wall on and the bottom of filler bin be both provided with sample tap, to sample inspection
It surveys.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment further includes temperature control system, temperature control system
Including the temperature feeler lever being separately positioned in leaching storehouse 101, reaction warehouse 102 and heating unit and the control of coupled temperature
Device.
The aluminium electrolytic carbon slag recycling ice crystal stone system of the present embodiment when in use, give up carbon slag by crusher in crushing,
Into block storehouse after screening, ball mill ball powder-grinding is sent into through batcher, and filler bin is sent by elevator.First deduster,
The dust collected in second deduster is respectively fed to corresponding elevator and screw conveyor.Powder, which enters, leaches storehouse, slurrying, so
Afterwards into the first flotation device carry out flotation, generated after flotation upper foam slurry and lower slurry separation after, lower slurry into
Enter the second flotation device and carry out flotation, generate upper foam slurry and lower slurry, and so on, the flotation production in the 4th flotation device
Upper foam slurry and lower slurry are given birth to, the lower slurry generated in the 4th flotation device enters plate type pressure filter, dewatered material
Slag is sent into the first buffer pool, and the water of 3-5 times of quality is added to be made into slurry, is sent into reaction warehouse, and it is slow that the 3rd is sent into after acid adding leaching
Pond is rushed, is dried, is packaged after the separation of horizontal centrifugal seperator.Horizontal centrifugal seperator and plate type pressure filter liquid outlet go out
The water come is sent into circulating water pool, is reused.The upper foam slurry obtained in flotation devices at different levels enters second after merging
Buffer pool obtains carbon mud after filter press is dehydrated.
In the other embodiment of the aluminium electrolytic carbon slag recycling ice crystal stone system of the present invention, the charging of the 3rd buffer pool
Mouth is connected with the discharge port of the 4th flotation device, and when that need not carry out further acid adding removal of impurities to ice crystal, the 4th flotation device floats
Slurry after choosing is directly entered the 3rd buffer pool, and is dehydrated by horizontal centrifugal seperator.In other embodiments, the 4th flotation device
Discharge port be directly connected with the charge door of reaction warehouse.
In other embodiments, the quantity of the flotation device in multistage flotation unit can be two, three or five with
On.
In other embodiments, equipment for separating liquid from solid is only a horizontal centrifugal seperator, and all separation of solid and liquid exist
It is carried out in the centrifugal separator.Multiple plate type pressure filters either multiple horizontal centrifugal seperators or multiple can certainly be set
Plate type pressure filter uses simultaneously with multiple horizontal centrifugal seperators.
In other embodiments, buffer unit is dsah-pot.In other embodiments, the quantity of buffer unit can be two
It is a, only including the first buffer pool and the second buffer pool.Or only one, for collecting the upper strata that flotation device flotation at different levels generate
Foamed slurry.In other embodiments, buffer unit can not also be included, slurry is sent directly into the corresponding equipment of subsequent processing i.e.
It can.
In other embodiments, the water outlet of circulating water pool is not connected with leaching the charge door in storehouse, what final filtration obtained
Filtrate carries out other modes processing after collecting, and the water that leaching needs in storehouse adds in by other means.In other embodiments, no
Circulating water pool is set.In other embodiments, not including dryer and ton chartered plane.
In other embodiments, depending on the particle situation of slag from delining raw material, feeding device can not include crusher or ball
One in grinding machine.In other embodiments, recovery system can not include deduster, cleaning shaft, deironing apparatus, recirculated water
Pond.
The embodiment of the method for the aluminium electrolytic carbon slag recycling ice crystal of the present invention：
Embodiment 1
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present embodiment includes the following steps：
1）Useless carbon slag raw material is delivered to jigging conveyer through raw material conveyer belt, by the deironing apparatus on jigging conveyer
The iron block in raw material is removed, being sent into crusher by jigging conveyer is crushed, and broken raw material block is screened, diameter
The boosted machine of fritter raw material no more than 20mm is sent into block storehouse, and bulk raw of the diameter more than 20mm is sent crusher back to and continued brokenly
It is broken；Fritter raw material in block storehouse is sent into ball mill progress ball milling through electro-vibrating feeder and raw material fine powder is made, and sieves, sifts out
Raw material fine powder after the impurity such as aluminium block, iron block is delivered to the first elevator through the first screw conveyor, is promoted by the first elevator
It is sent into filler bin；
2）Water is added in storehouse is leached, the powder in filler bin is sent into and is leached in storehouse, slurry is mixed and made into water, and stirs
10min mixings are mixed, is made and treats flotation slurry；The mass ratio of powder and water is 1:3-5；
3）To step 2）In obtain treat in flotation slurry with 3mL/（min·t）Speed it is metered first floating dropwise
Agent is selected to carry out level-one roughing, the roughing time is 30min, the first upper foam slurry and the first lower slurry is obtained, to the first lower floor
With 3mL/ in slurry（min·t）Speed metered second flotation agent carries out that two level is selected, and the selected time is 20min dropwise,
The second upper foam slurry and the second lower slurry are obtained, into the second lower slurry with 3mL/（min·t）Speed measure dropwise
Add in the 3rd flotation agent carry out three-level it is selected, the selected time be 10min, obtain the 3rd upper foam slurry and the 3rd lower slurry,
Into the 3rd lower slurry with 3mL/（min·t）Speed metered 4th flotation agent carries out level Four and scans dropwise, when scanning
Between for 10min, obtain the 4th upper foam slurry and the 4th lower slurry；
First flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2
Oil；Second flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is diesel oil, and foaming agent is terpenic oil；The
Three flotation agent are 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is diesel oil, and foaming agent is methanol；4th flotation
Agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are XF-3 type collecting agents, and foaming agent blisters for BK-201 types
Agent；
4）By step 3）In obtained the 4th lower slurry after filter press press filtration, add the water stirring of 3 times of quality that slurry is made
Material is sent into reaction warehouse, and the pH that the hydrochloric acid for adding in 8% adjusts slurry makes Dissolvable Fe therein, Si for 5, leaching 30min
Impurity dissolution is waited, mixed slurry feeding horizontal centrifugal seperator is dehydrated, dewatered solid is sent into dryer and is done
It is packaged through ton chartered plane to obtain ice crystal product after dry；
Merge first, second, third and fourth upper foam slurry, carbon mud is obtained after filter press press filtration.
The filtrate generated in above-mentioned horizontal centrifugal seperator and filter press, which is sent into circulating water pool, is used as water circulation use.
After testing, the cryolite recovery rate of the present embodiment reaches 91.6%, and the purity of ice crystal reaches 94.6%.
Embodiment 2
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present embodiment includes the following steps：
1）With embodiment 1；
2）Water is added in storehouse is leached, the powder in filler bin is sent into and is leached in storehouse, system is mixed with the water of 20 times of quality
Into slurry, and 10min mixings are stirred, be made and treat flotation slurry；
3）To step 2）In obtain treat in flotation slurry with 6mL/（min·t）Speed it is metered first floating dropwise
Agent is selected to carry out level-one roughing, the roughing time is 30min, the first upper foam slurry and the first lower slurry is obtained, to the first lower floor
With 6mL/ in slurry（min·t）Speed metered second flotation agent carries out that two level is selected, and the selected time is 20min dropwise,
The second upper foam slurry and the second lower slurry are obtained, into the second lower slurry with 6mL/（min·t）Speed measure dropwise
Add in the 3rd flotation agent carry out three-level it is selected, the selected time be 10min, obtain the 3rd upper foam slurry and the 3rd lower slurry,
Into the 3rd lower slurry with 6mL/（min·t）Speed metered 4th flotation agent carries out level Four and scans dropwise, when scanning
Between for 10min, obtain the 4th upper foam slurry and the 4th lower slurry；
First flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2
Oil；Second flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is kerosene, and foaming agent is terpenic oil；The
Three flotation agent are 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is diesel oil, and foaming agent is terpenic oil；4th is floating
Select agent by mass ratio be 1:1 collecting agent and foaming agent composition, collecting agent is diesel oil, and foaming agent is camphorated oil；
4）By step 3）In obtained the 4th lower slurry after filter press press filtration, the water stirring of 5 times of quality is added to be made into slurry
Material is sent into reaction warehouse, the pH that the hydrochloric acid for adding in 10% adjusts slurry for 4, leaching 30min, make Dissolvable Fe therein,
The impurity such as Si dissolve out, and mixed slurry feeding horizontal centrifugal seperator are dehydrated, dewatered solid is sent into dryer and is carried out
It is packaged through ton chartered plane to obtain ice crystal product after drying；
Merge first, second, third and fourth upper foam slurry, carbon mud is obtained after filter press press filtration.
The filtrate generated in above-mentioned horizontal centrifugal seperator and filter press, which is sent into circulating water pool, is used as water circulation use.
After testing, the cryolite recovery rate of the present embodiment reaches 90.6%, and the purity of ice crystal reaches 92.5%.
Embodiment 3
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present embodiment includes the following steps：
1）With embodiment 1；
2）Water is added in storehouse is leached, the powder in filler bin is sent into and is leached in storehouse, system is mixed with the water of 15 times of quality
Into slurry, and 10min mixings are stirred, be made and treat flotation slurry；
3）To step 2）In obtain treat in flotation slurry with 5mL/（min·t）Speed it is metered first floating dropwise
Agent is selected to carry out level-one roughing, the roughing time is 30min, the first upper foam slurry and the first lower slurry is obtained, to the first lower floor
With 5mL/ in slurry（min·t）Speed metered second flotation agent carries out that two level is selected, and the selected time is 20min dropwise,
The second upper foam slurry and the second lower slurry are obtained, into the second lower slurry with 5mL/（min·t）Speed measure dropwise
Add in the 3rd flotation agent carry out three-level it is selected, the selected time be 10min, obtain the 3rd upper foam slurry and the 3rd lower slurry,
Into the 3rd lower slurry with 5mL/（min·t）Speed metered 4th flotation agent carries out level Four and scans dropwise, when scanning
Between for 10min, obtain the 4th upper foam slurry and the 4th lower slurry；
First flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2
Oil；Second flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are diesel oil, and foaming agent is No. 2 oil；The
Three flotation agent are 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is XF-3 type collecting agents, and foaming agent is camphor
Oil；4th flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is XF-3 type collecting agents, and foaming agent is
BK-201 type foaming agents；
4）By step 3）In obtained the 4th lower slurry after filter press press filtration, the water stirring of 4 times of quality is added to be made into slurry
Material is sent into reaction warehouse, and the pH that the hydrochloric acid for adding in 9% adjusts slurry makes Dissolvable Fe therein, Si for 6, leaching 30min
Impurity dissolution is waited, mixed slurry feeding horizontal centrifugal seperator is dehydrated, dewatered solid is sent into dryer and is done
It is packaged through ton chartered plane to obtain ice crystal product after dry；
Merge first, second, third and fourth upper foam slurry, carbon mud is obtained after filter press press filtration.
The filtrate generated in above-mentioned horizontal centrifugal seperator and filter press, which is sent into circulating water pool, is used as water circulation use.
After testing, the cryolite recovery rate of the present embodiment reaches 91.7%, and the purity of ice crystal reaches 91.3%.
Embodiment 4
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present embodiment includes the following steps：
1）With embodiment 1；
2）Water is added in storehouse is leached, the powder in filler bin is sent into and is leached in storehouse, system is mixed with the water of 10 times of quality
Into slurry, and 10min mixings are stirred, be made and treat flotation slurry；
3）To step 2）In obtain treat in flotation slurry with 3mL/（min·t）Speed it is metered first floating dropwise
Agent is selected to carry out level-one roughing, the roughing time is 30min, the first upper foam slurry and the first lower slurry is obtained, to the first lower floor
With 3mL/ in slurry（min·t）Speed metered second flotation agent carries out that two level is selected, and the selected time is 20min dropwise,
The second upper foam slurry and the second lower slurry are obtained, into the second lower slurry with 3mL/（min·t）Speed measure dropwise
Add in the 3rd flotation agent carry out three-level it is selected, the selected time be 10min, obtain the 3rd upper foam slurry and the 3rd lower slurry,
Into the 3rd lower slurry with 3mL/（min·t）Speed metered 4th flotation agent carries out level Four and scans dropwise, when scanning
Between for 10min, obtain the 4th upper foam slurry and the 4th lower slurry；
First flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2
Oil；Second flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is BK-201 types
Foaming agent；3rd flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is kerosene, and foaming agent is camphor
Oil；4th flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent is kerosene, and foaming agent is methanol；
4）By step 3）In obtained the 4th lower slurry be sent into horizontal centrifugal seperator and be dehydrated, dewatered solid
It is sent into after dryer is dried and is packaged to obtain ice crystal product through ton chartered plane；
Merge first, second, third and fourth upper foam slurry, carbon mud is obtained after filter press press filtration.
After testing, the cryolite recovery rate of the present embodiment reaches 92.5%, and the purity of ice crystal reaches 90.1%.
Embodiment 5
The method of the aluminium electrolytic carbon slag recycling ice crystal of the present embodiment includes the following steps：
1）With embodiment 1；
2）With embodiment 1；
3）To step 2）In obtain treat in flotation slurry with 3mL/（min·t）Speed it is metered first floating dropwise
Agent is selected to carry out level-one roughing, the roughing time is 30min, the first upper foam slurry and the first lower slurry is obtained, to the first lower floor
With 3mL/ in slurry（min·t）Speed metered second flotation agent carries out that two level is selected, and the selected time is 20min dropwise,
The second upper foam slurry and the second lower slurry are obtained, into the second lower slurry with 3mL/（min·t）Speed measure dropwise
Add in the 3rd flotation agent carry out three-level it is selected, the selected time be 10min, obtain the 3rd upper foam slurry and the 3rd lower slurry；
4）By step 3）In obtained the 3rd lower slurry be sent into horizontal centrifugal seperator and be dehydrated, dewatered solid
It is sent into after dryer is dried and is packaged to obtain ice crystal product through ton chartered plane；
First flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2
Oil；Second flotation agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2 oil；The
Three flotation agent are 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2 oil；4th flotation
Agent is 1 by mass ratio:1 collecting agent and foaming agent composition, collecting agent are kerosene, and foaming agent is No. 2 oil；
It is other identical in embodiment 1.
After testing, the cryolite recovery rate of the present embodiment reaches 91.4%, and the purity of ice crystal reaches 92.3%.
The device and method of the aluminium electrolytic carbon slag recycling ice crystal of the present invention can be in aluminium electrolytic carbon slag
Most of ice crystal carries out recycling, is calculated according to the average content of ice crystal in useless carbon slag for 40 ~ 60%, existing market
The average price of upper ice crystal is calculated, 1000 yuan/ton of production cost at 5000 yuan or more with handling 4000 tons of useless carbon slags every year,
Then the annual output value is more than 8,000,000, and profit is more than 4,000,000.The ice crystal that obtained useless carbon slag regenerates can be direct
It is back to use during Aluminum Electrolysis Production, it is also possible to make opacifier of manufacture glass and enamel etc..The carbon mud that flotation obtains can be used as
Fuel and the raw material of carbon element factory use, and the waste water generated in addition can be recycled, and not influence product quality, both cost-effective,
Meet the requirement of environmental protection again.
Claims (7)
1. a kind of system of aluminium electrolytic carbon slag recycling ice crystal, which is characterized in that be used for including what is be sequentially connected by useless carbon
The leaching storehouse for treating flotation slurry, flotation unit and equipment for separating liquid from solid for flotation ice crystal is made in slag；
Buffer unit is further included, the upper foam slurry outlet of the flotation unit is connected with buffer unit charge door；
Reaction warehouse is further included, acid-adding port, the discharge port for leaching storehouse and the flotation unit are provided on the reaction warehouse
Charge door is connected；
The equipment for separating liquid from solid includes the first equipment for separating liquid from solid and the second equipment for separating liquid from solid, the first equipment for separating liquid from solid
Solid outlet is connected with the charge door of reaction warehouse；
The flotation unit includes four flotation devices being sequentially connected：First flotation device, the second flotation device, the 3rd flotation device,
Four flotation devices；
First equipment for separating liquid from solid is made of the first plate type pressure filter and the second plate type pressure filter；
Buffer unit includes the first buffer pool, the second buffer pool, the 3rd buffer pool, the charge door of the first buffer pool and first board-like
The solid outlet of filter press is connected, and the charge door of the first plate type pressure filter is connected with the discharge port of the 4th flotation device, for preparing
Slurry is purified, the second buffer pool is connected with the upper foam slurry outlet of each flotation device, for collecting upper foam slurry；
The charge door of 3rd buffer pool is connected with the discharge port of reaction warehouse, the discharge port of the 3rd buffer pool and the second equipment for separating liquid from solid
Charge door is connected.
2. a kind of method of aluminium electrolytic carbon slag recycling ice crystal using system as described in claim 1, which is characterized in that
Including：
Useless carbon ground-slag material with water is mixed, must treat flotation slurry, after treating flotation slurry progress flotation using flotation agent, obtains upper strata
Foamed slurry and lower slurry；Lower slurry is dehydrated to get ice crystal.
3. the method for aluminium electrolytic carbon slag recycling ice crystal as claimed in claim 2, which is characterized in that the flotation is four
Grade flotation, and the flotation agent at least used in two-stage flotation is different.
4. the method for aluminium electrolytic carbon slag recycling ice crystal as claimed in claim 3, which is characterized in that the flotation agent bag
Collecting agent and foaming agent are included, the collecting agent is any one in kerosene, diesel oil, XF-3 type collecting agents.
5. the method for aluminium electrolytic carbon slag as claimed in claim 4 recycling ice crystal, which is characterized in that the foaming agent is
Any one in No. 2 oil, terpenic oil, camphorated oil, methanol, pyridine, BK-201 type foaming agents.
6. the method for aluminium electrolytic carbon slag recycling ice crystal as claimed in claim 2, which is characterized in that starch upper foam
Material is dehydrated to obtain carbon mud.
7. the method for the aluminium electrolytic carbon slag recycling ice crystal as described in claim 2-6 any one, which is characterized in that will
After final lower slurry dehydration, add water, slurrying, acid adding is leached, is dehydrated to get ice crystal fine work.
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| CN109161930A (en) * | 2018-11-15 | 2019-01-08 | 洛阳豫港龙泉铝业有限公司 | A kind of separating technology of aluminium electrolyzing carbon slag and electrolyte |
| CN109719118A (en) * | 2019-01-04 | 2019-05-07 | 亚太环保股份有限公司 | A kind of aluminium cell solid waste recycling treatment system and method |
| CN110434151B (en) * | 2019-08-14 | 2021-04-23 | 浙江阳鹭环保科技有限公司 | Circulating domestic waste separation system |
| CN111115665A (en) * | 2020-01-15 | 2020-05-08 | 郑州大学 | Method for recycling lithium-potassium-rich aluminum electrolyte |
| CN114618687A (en) * | 2022-04-25 | 2022-06-14 | 舒新前 | Method for recovering graphite from electrolytic aluminum slag by flotation |
Citations (2)
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| CN103537365A (en) * | 2013-10-16 | 2014-01-29 | 山东信发华信铝业有限公司 | Aluminum reduction cell cathode bottom block harmless treatment system and process |
| CN104984984A (en) * | 2015-07-31 | 2015-10-21 | 郑州鸿跃环保科技有限公司 | Recycled and harmless disposing method and system for slag after overhaul of aluminum electrolytic cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103537365A (en) * | 2013-10-16 | 2014-01-29 | 山东信发华信铝业有限公司 | Aluminum reduction cell cathode bottom block harmless treatment system and process |
| CN104984984A (en) * | 2015-07-31 | 2015-10-21 | 郑州鸿跃环保科技有限公司 | Recycled and harmless disposing method and system for slag after overhaul of aluminum electrolytic cell |
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