CN108893614B - Equipment and method for refining electrolyte and utilizing aluminum ash from carbon slag of electrolytic cell - Google Patents
Equipment and method for refining electrolyte and utilizing aluminum ash from carbon slag of electrolytic cell Download PDFInfo
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- CN108893614B CN108893614B CN201810621034.0A CN201810621034A CN108893614B CN 108893614 B CN108893614 B CN 108893614B CN 201810621034 A CN201810621034 A CN 201810621034A CN 108893614 B CN108893614 B CN 108893614B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 68
- 239000003792 electrolyte Substances 0.000 title claims abstract description 66
- 239000002893 slag Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007670 refining Methods 0.000 title claims abstract description 26
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 239000007789 gas Substances 0.000 claims description 44
- 239000000428 dust Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 23
- 238000002485 combustion reaction Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 238000005188 flotation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 101100493711 Caenorhabditis elegans bath-41 gene Proteins 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
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- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses equipment for refining electrolyte and utilizing aluminum ash from carbon slag of an electrolytic cell, which comprises a base, wherein four corners of the upper end of the base are respectively fixed with a first supporting rod, two first supporting rods on the same side form a group, the upper ends of the two first supporting rods in the same group are jointly fixed with an electric sliding rail, the upper ends of the two electric sliding rails are respectively provided with two sliding blocks, the upper ends of the four sliding blocks are jointly fixed with a feeding device, the upper end of the base is fixedly provided with a support, the upper end of the support is fixedly provided with a furnace body, and one end of the furnace body is obliquely arranged; the invention also provides a method for refining the electrolyte from the carbon slag of the electrolytic cell and utilizing the aluminum ash. The invention improves the purity of carbon slag, recycles carbon granules, has high aluminum recovery rate in aluminum ash, can completely recycle electrolyte and aluminum oxide in the aluminum ash, and can solve the problems of waste generation and large raw material purchase of aluminum factories and aluminum processing factories by one furnace.
Description
Technical Field
The invention relates to the technical field of refining electrolyte and utilizing aluminum ash from carbon slag of an electrolytic cell, in particular to equipment and a method for refining electrolyte and utilizing aluminum ash from carbon slag of an electrolytic cell.
Background
The carbon block of the electrolytic cell in the electrolytic aluminum plant can cause the phenomenon of carbon slag falling due to quality problems in the daily production process, and the phenomenon can influence the cell condition of the electrolytic cell. It must be fished out. But the fished carbon slag has a plurality of holes and a large amount of electrolyte inside. The recovered electrolyte is rarely used by people due to poor quality. But the annual electrolyte demand is high. And drawing the aluminum liquid from the electrolysis workshop to the casting workshop, and pouring the aluminum liquid into the mixing furnace, wherein the impurities of the aluminum liquid are all electrolytes drawn from the electrolysis bath. The slag removal operation is carried out during the production of the casting workshop, and the surface electrolyte is changed into aluminum ash to become garbage after the slag removal agent is added. The treatment of aluminum ash is a great problem in large foundries. The daily treatment method recovers the intermediate aluminum, then the intermediate aluminum is changed into garbage treatment, and some methods are used for preparing a protection ring by adding water to protect the steel claw. But the effect is poor, the method is not adopted by many aluminum plants, and the aluminum ash and the carbon slag need to be treated by hundreds of thousands or even nearly millions of tons every year. The environmental problem is always the biggest and most painful problem of electrolytic aluminum and aluminum deep processing. At present, two methods are used for treating carbon slag; 1. a flotation method. And (3) removing iron from the electrolyte, grinding the electrolyte into fine powder in a ball grinding surface, and then performing flotation in flotation equipment. After entering the flotation solution, the carbon powder floats on the flotation solution in a light weight mode, the electrolyte is deposited on the lower surface in a high density mode, and after the electrolyte is separated, oil removal, dehydration, drying or airing are carried out. The produced product has poor purity, gray color and great environmental pollution; 2. baking. It is usually melted in a back-projection furnace, one cell in the furnace is used for burning fuel, and the other cell is used for melting pool. The carbon slag is put into a molten pool, the fuel generates high temperature of over 1200 ℃, and the electrolyte in the carbon slag is melted and flows to the bottom of the molten pool by the high temperature and the heat radiation in the hearth. When the electrolyte liquid in the molten pool reaches a certain height, the furnace mouth is opened to discharge the high-temperature electrolyte. And removing the surface scum. Because the electrolyte in the molten pool is mixed with the carbon powder, the decomposition is not thorough, the electrolyte flowing out from the furnace mouth is quickly solidified without being separated, the surface whiteness is better, and the method is obviously superior to the product of a float washing method. But produces a strong pungent odor. The heat energy utilization rate is low. The carbon particles will also burn, and the aluminum ash processing method: A. and grinding by using a ball mill, wherein the aluminum particles become small aluminum sheets under the grinding of the steel balls. And screening the aluminum sheet. The method changes into garbage treatment, and some methods carry out the next step: adding water into the aluminum ash, rolling, pulping, extruding and molding, and drying. Then, the steel claw is made into a ring to form a protection ring to protect the steel claw. The disadvantages are that the produced seed dust is large and the pungent smell is large when a protection ring is made. B. The stirrer is heated and stirred. Adding heating substances such as coal powder, carbon powder and the like into the aluminum ash which is just taken off, so that the aluminum particles become liquid aluminum at high temperature and flow out. But a large amount of aluminum ash becomes garbage disposal. Can not be recycled. Therefore, the device and the method for refining the electrolyte and utilizing the aluminum ash from the carbon slag of the electrolytic cell are designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides equipment and a method for refining electrolyte and utilizing aluminum ash from carbon slag of an electrolytic cell.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an electrolysis trough carbon slag refines equipment that electrolyte and aluminium ash utilized, includes the base, the upper end four corners of base all is fixed with first bracing piece, and is a set of with two first bracing pieces of one side, and the upper end of two first bracing pieces of same set is fixed with electronic slide rail jointly, and two sliders are all installed to the upper end of two electronic slide rails, and the upper end of four sliders is fixed with feeding device jointly, the upper end of base is fixed with the support, the upper end of support is fixed with the furnace body, the one end slope of furnace body sets up, one end in the furnace body is equipped with the preparation chamber, the other end in the furnace body is equipped with the burning chamber, be equipped with the molten bath in the furnace body, the molten bath is located between preparation chamber and the burning chamber, be equipped with first fire door on the one end lateral wall in the molten bath, one side of first fire door is equipped with the second slide, install first furnace door on the, the first furnace door corresponds to the first furnace opening, a discharge hole is formed in one side of the bottom of the molten pool, a feed inlet is formed in the top of the preparation cavity, supporting plates are fixed to two sides of the upper end of the furnace body, third slideways are arranged on two opposite sides of the two supporting plates, third furnace doors are installed in the two third slideways and correspond to the feed inlet, three second furnace openings are arranged on one side of the furnace body at equal intervals, a first slideway is arranged on one side of each second furnace opening, a second furnace door is installed at the upper end of the first slideway and corresponds to the second furnace openings, a furnace bottom is arranged at the bottom of the preparation cavity, transition blocks are fixed between the furnace bottom and the second furnace openings, a plurality of grooves are formed in the upper end of the furnace bottom at equal intervals, one ends of the grooves extend to one end side wall in the molten pool, furnace bars are fixed on opposite side walls in the combustion cavity together, the utility model discloses a stove, including the furnace body, the furnace body is equipped with the combustion chamber, wherein one side of furnace body from top to bottom installs gas combustion machine and air-blower in proper order, gas combustion machine and air-blower all link up the setting with the combustion chamber, and the gas combustion machine is located the upper end of fire bars, the air-blower is located the lower extreme of fire bars, the opposite side of furnace body runs through and is equipped with the blast pipe, be equipped with cooling device on the blast pipe, the one end of blast pipe is equipped with dust device, the opposite side of furnace body is equipped.
Preferably, the feeding device comprises a vehicle body fixed at the upper ends of the four sliding blocks, a second protection box is fixed at one side of the upper end of the vehicle body, a first driving motor is fixed on the side wall of one end in the second protection box, two supporting blocks which are parallel to each other are fixed at the upper end of the vehicle body, a first rotating roller is connected to one opposite side of the two supporting blocks in a rotating manner, an output shaft of the first driving motor penetrates through the side wall of the other end in the second protection box and one side of one of the supporting blocks and is fixed at one end of the first rotating roller, a second pull rope is wound on the first rotating roller, the second pull rope penetrates through the upper end of the vehicle body and extends to the lower end of the vehicle body, one end of the second pull rope is connected with a pulley block, one end of the pulley block is connected to the lower end of the vehicle body, the other end of the, the lower extreme of charging box is equipped with first opening, first open-ended both sides are articulated to have a sealing door, the both sides of charging box are all rotated and are connected with the hydro-cylinder, the piston rod end-to-end rotation of hydro-cylinder is connected in one side of sealing the door.
Preferably, cooling device is including fixing the cooling box in support frame upper end one side, the blast pipe runs through one side of cooling box and extends to the opposite side, one side of cooling box one end link up and is equipped with the filler pipe, the one end of filler pipe is connected with the water pump, one side of water pump is connected with the inlet tube, one side in the support frame is equipped with the circulation case, the one end of inlet tube extends to the bottom in the circulation case, the opposite side of cooling box one end link up and is equipped with the outlet pipe, the one end of outlet pipe extends to the circulation incasement.
Preferably, dust device is including lining up the cyclone who sets up in blast pipe one end, cyclone's upper end link up and is fixed with the filter tube, opposite side in the support frame is equipped with filtration water tank, the one end of filter tube extends to in the filtration water tank, the one end of filter tube is fixed with the gas pipe that looses, cyclone's lower extreme one side is equipped with the second opening, second open-ended one side articulates there is the closing cap.
Preferably, the opening and closing device comprises two fixed rods fixed on two sides of the mountain end of the support frame, the upper ends of the two fixed rods are jointly fixed with a bearing rod, one side of the bearing rod is fixed with a sleeve, a connecting block is sleeved in the sleeve in a sliding manner, one side of the connecting block is fixed with a pull rod, one end of the pull rod is fixed on one side of a third furnace door, a spring is fixed at the bottom in the sleeve, one end of the spring is fixed on the other side of the connecting block, the other side of the bearing rod is fixed with a first protection box, a second driving motor is fixed on the side wall of one end in the first protection box, the other side of the bearing rod is fixed with two parallel rotating plates, the opposite sides of the two rotating plates are jointly and rotatably connected with a second rotating roller, the tail end of an output shaft of the second driving motor penetrates through the side wall of the other end in the first protection box and one side of one of, the second rotating roller is wound with a first pull rope, one end of the first pull rope penetrates through the other side of the bearing rod and the bottom end of the sleeve and extends into the sleeve, one end of the first pull rope is fixed to the other end of the connecting block, two second supporting rods are fixed to one side of the sleeve, and one ends of the two second supporting rods are fixed to one side of the two fixing rods respectively.
Preferably, the furnace body is arranged in a conical shape.
Preferably, the upper ends of the furnace bottom and the furnace body are both arc-shaped.
Preferably, the exhaust pipe is made of a cast steel material.
Preferably, the furnace body consists of refractory bricks, insulating bricks and insulating cotton in sequence from inside to outside.
The invention also provides a method for refining the electrolyte from the carbon slag of the electrolytic cell and utilizing the aluminum ash, which comprises the following steps:
s1, starting an air blower and a gas burner to heat the furnace body, or adding carbon blocks, coke and coal powder into a fire bar to heat the furnace body;
s2, adding carbon slag or aluminum ash of the electrolytic cell to be processed into the furnace body through the second furnace opening or into the feeding box through the feeding opening, moving the feeding box to the feeding opening through the pulley block, opening the sealing door through the oil cylinder, and putting the carbon slag or the aluminum ash of the electrolytic cell into the furnace body;
s3, after the carbon slag enters the furnace body, preheating energy is firstly carried out, then high-temperature baking is carried out, under the action of high temperature, after the electrolyte on the surface layer or the upper layer of the carbon slag flows out, the electrolyte becomes liquid and gathers at the bottom of the groove in the furnace bottom and flows to the molten pool, the carbon slag cannot flow along with the flowing of the electrolyte, the scraping amount of the carbon slag in the molten pool is reduced, the carbon slag can be reused after being cooled or the high-temperature carbon slag is directly used as fuel, the electrolyte in the molten pool can be layered at high temperature, impurities with smaller specific gravity can float on the surface, and the purity of the electrolyte is ensured;
s4, in the aluminum ash production, the hot aluminum ash or aluminum ash which is just produced is put into a furnace body, the aluminum ash is baked at high temperature, the aluminum liquid is firstly melted and enters a molten pool through a groove, and then, the aluminum ash contains the main components of electrolyte, aluminum and aluminum oxide, a slag removing agent and the reactant of the electrolyte and oxygen, the aluminum oxide can be dissolved by the electrolyte in the molten state at high temperature, the aluminum oxide is melted and enters the molten pool, the aluminum ash is basically recycled as the raw material, and the consumption is reduced;
s5, cooling the generated gas in the cold area device through the exhaust pipe, then entering the cyclone dust collector for dust removal, leading the dust-removed gas into the filter water tank through the filter pipe, dispersing the gas into countless small bubbles through the air diffusing pipe, increasing the contact exchange area with water, leading the harmful gas in the flue gas to enter the water for filtration, and carrying out acid-base neutralization reaction and innocent treatment when the water in the filter water tank reaches the concentration, thereby ensuring ultra-clean discharge.
When the device is used, an air blower and a gas burner are started to heat the furnace body, or carbon blocks, coke and coal powder are added into a furnace bar to heat the furnace body, carbon slag or aluminum ash of an electrolytic cell to be processed is added into the furnace body through a second furnace opening or a charging box through a charging opening, an electric slide rail drives a sliding block to move, the sliding block moves a vehicle body to the upper end of a charging opening, a second driving motor drives a second rotating roller to rotate, the second rotating roller drives a first pull rope to contract, the first pull rope drives a connecting block to slide in a sleeve, the connecting block drives a pull rod to move, the pull rod drives a third furnace door to move to open the charging opening, a first driving motor drives the first rotating roller to rotate, the first rotating roller drives the second pull rope to stretch and contract, so as to drive a pulley block to move up and down, the charging box is moved to the charging opening by the pulley block, an oil cylinder opens a sealing door, and the carbon slag or, the second driving motor stops running, the spring recovers to push the connecting block to move, the connecting block pushes the pull rod, the pull rod pushes the third furnace door to move to block the feed inlet, generated gas enters the cyclone dust collector for dust removal after being cooled by the cold area device through the exhaust pipe, the gas after dust removal is introduced into the filter water tank through the filter pipe, the gas is dispersed into countless small bubbles through the gas dispersing pipe, the contact exchange area with water is increased, the harmful gas in the flue gas enters the water for filtration, when the water in the filtering water tank reaches the concentration, the acid-base neutralization reaction and the harmless treatment are carried out, and the ultra-clean discharge is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for refining electrolyte and utilizing aluminum ash from carbon slag in an electrolytic cell according to the present invention;
FIG. 2 is a top view of an apparatus for refining electrolyte and utilizing aluminum ash from carbon residue in an electrolytic cell according to the present invention;
FIG. 3 is a schematic structural view of a fire bar of an apparatus for refining electrolyte and utilizing aluminum ash from carbon slag in an electrolytic cell according to the present invention;
FIG. 4 is a schematic structural diagram of a molten bath of the equipment for refining electrolyte and utilizing aluminum ash from carbon slag in the electrolytic cell;
FIG. 5 is an enlarged view of the structure at the position B of the equipment for refining the electrolyte and utilizing the aluminum ash from the carbon slag of the electrolytic cell, which is provided by the invention;
FIG. 6 is an enlarged view of the structure at the position A of the equipment for refining the electrolyte and utilizing the aluminum ash from the carbon slag of the electrolytic cell.
In the figure: 1 base, 2 blower, 3 gas combustion engine, 4 first furnace door, 5 first supporting rod, 6 first slideway, 7 furnace body, 8 second furnace door, 9 feeding hole, 10 supporting plate, 11 electric sliding rail, 12 filtering pipe, 13 supporting frame, 14 filtering water tank, 15 air dispersing pipe, 16 sealing cover, 17 circulating box, 18 support, 19 discharging hole, 20 second slideway, 21 first furnace mouth, 22 second furnace mouth, 23 pull rod, 24 connecting block, 25 first pull rope, 26 third slideway, 27 third furnace door, 28 water inlet pipe, 29 spring, 30 sleeve, 31 fixing rod, 32 first protecting box, 33 water pump, 34 water outlet pipe, 35 cooling box, 36 cyclone dust collector, 37 exhaust pipe, 38 rotating plate, 39 bearing rod, 40 furnace bottom, 41 molten bath, 42 groove, 43 transition block, 44 furnace bar, 45 oil cylinder, 46 sealing door, 47 feeding hole, 48 pulley block, 49 second pull rope, 50 second protecting box, 51 a first driving motor, 52 a supporting block, 53 a first rotating roller, 54 a second supporting rod, 55 a vehicle body, 56 a sliding block and 57 a charging box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, an apparatus for refining electrolyte and utilizing aluminum ash from carbon slag in an electrolytic cell comprises a base 1, wherein four corners of the upper end of the base 1 are respectively fixed with a first support rod 5, a support feeding device is convenient for feeding from the upper side of a furnace body 7, two first support rods 5 on the same side are in a group, the upper ends of two first support rods 5 in the same group are jointly fixed with an electric slide rail 11 for facilitating the movement of a vehicle body 55, two slide blocks 56 are respectively installed at the upper ends of the two electric slide rails 11, a feeding device is jointly fixed at the upper ends of the four slide blocks 56, a support 18 is fixed at the upper end of the base 1, the support furnace body 7 is fixed at the upper end of the support 18, one end of the furnace body 7 is obliquely arranged for facilitating the flow of molten liquid into a molten pool 41, a preparation cavity is arranged at one end of the furnace body 7, a combustion cavity is arranged at the, The furnace body 7 is heated by natural gas, liquefied gas, water gas, fuel oil, coal-carbon powder and other materials, the use is convenient, a molten pool 41 is arranged in the furnace body 7, the molten pool 41 is positioned between a preparation cavity and a combustion cavity, a first furnace mouth 21 is arranged on the side wall of one end in the molten pool 41, the furnace body is used when the molten pool 41 is subjected to slag skimming, a second slideway 20 is arranged on one side of the first furnace mouth 21 and is convenient to open, a first furnace door 4 is arranged on the second slideway 20, the first furnace door 4 corresponds to the first furnace mouth 21, a discharge hole 19 is arranged on one side of the bottom of the molten pool 41, the prepared materials are taken out, a feed hole 9 is arranged on the top in the preparation cavity, supporting plates 10 are fixed on two sides of the upper end of the furnace body 7, third slideways 26 are arranged on one opposite sides of the two supporting plates 10, third furnace doors 27 are jointly arranged in the two third slideways 26 and are convenient to open, the third, a first slideway 6 is arranged on one side of the second furnace mouth 22, a second furnace door 8 is arranged at the upper end of the first slideway 6, the second furnace door 8 corresponds to the second furnace mouth 22, a furnace bottom 40 is arranged at the bottom of the preparation cavity, a transition block 43 is fixed between the furnace bottom 40 and the second furnace mouth 22, the furnace bottom 7 is 300mm lower than the second furnace mouth 22, the transition block 43 is convenient for slag removal, a plurality of grooves 42 are equidistantly arranged at the upper end of the furnace bottom 40, so that molten liquid flows into the molten pool 41 along the bottoms of the grooves 42, one end of each groove 42 extends to one side wall in the molten pool 41, furnace bars 44 are jointly fixed on opposite side walls in the combustion cavity, carbon blocks, coke and coal powder are added in the furnace bars 44 to heat the interior of the furnace body 7, a gas burner 3 and an air blower 2 are sequentially arranged on one side of the furnace body 7 from top to bottom, the gas burner 3 and the air blower 2 are communicated with the combustion cavity, and gas combustion engine 3 is located the upper end of fire bar 44, and air-blower 2 is located the lower extreme of fire bar 44, send into furnace body 7 with the heat, and the opposite side of furnace body 7 is run through and is equipped with blast pipe 37, is equipped with cooling device on the blast pipe 37, cools off the gas of high temperature, and the one end of blast pipe 37 is equipped with the dust device, carries out the dust fall to the dust of output in the furnace body 7 and handles, and the opposite side of furnace body 7 is equipped with support frame 13, and the upper end of support frame 13 is equipped.
In the invention, the feeding device comprises a vehicle body 55 fixed at the upper end of four sliding blocks 56, a second protection box 50 is fixed at one side of the upper end of the vehicle body 55, a first driving motor 51 is protected, a first driving motor 51 is fixed on the side wall of one end in the second protection box 50, two supporting blocks 52 which are parallel to each other are fixed at the upper end of the vehicle body 55, a first rotating roller 53 is connected to one opposite side of the two supporting blocks 52 in a rotating way, the first driving motor 51 drives the first rotating roller 53 to rotate, an output shaft of the first driving motor 51 penetrates through the side wall of the other end in the second protection box 50 and one side of one of the supporting blocks 52 and is fixed at one end of the first rotating roller 53, a second pull rope 49 is wound on the first rotating roller 53, the second pull rope 49 penetrates through the upper end of the vehicle body 55 and extends to the lower end of the vehicle body 55, one end of the second pull rope 49 is, the first rotating roller 53 drives the second pull rope 49 to stretch so as to drive the pulley block 48 to move up and down, one end of the pulley block 48 is connected to the lower end of the vehicle body 55, the other end of the pulley block 48 is connected with a feeding box 57, the upper end of the feeding box 57 is provided with a feeding port 47, the carbon slag or the aluminum ash of the electrolytic cell to be processed is added into the furnace body 7 through the second furnace opening 22 or is added into the feeding box 57 through the feeding port 47, the lower end of the feeding box 57 is provided with a first opening, two sides of the first opening are hinged with a sealing door 46, a first driving motor 51 drives the first rotating roller 53 to rotate, the first rotating roller 53 drives the second pull rope 49 to stretch so as to drive the pulley block 48 to move up and down, the feeding box 57 is moved to the feeding port 9 by the pulley block 48, the oil cylinder 45 opens the sealing door 46 to place the carbon slag or the aluminum ash of the electrolytic cell, two sides of the feeding box 57 are both rotatably connected with the, the cooling device comprises a cooling box 35 fixed on one side of the upper end of a support frame 13, an exhaust pipe 37 penetrates through one side of the cooling box 35 and extends to the other side, a water feeding pipe is arranged on one side of one end of the cooling box 35 in a penetrating manner, a water pump 33 is connected with one end of the water feeding pipe, a water inlet pipe 28 is connected with one side of the water pump 33, a circulation box 17 is arranged on one side in the support frame 13, one end of the water inlet pipe 28 extends to the bottom end in the circulation box 17, the water pump 33 enables water in the cooling box 35 to circulate and rapidly cool, a water outlet pipe 34 is arranged on the other side of one end of the cooling box 35 in a penetrating manner, one end of the water outlet pipe 34 extends into the circulation box 17, the dust settling device comprises a cyclone dust collector 36 arranged at one end of the exhaust pipe 37 in a penetrating manner, the dust collecting effect is good, a filter pipe 12 is fixedly arranged at the upper, an air diffusing pipe 15 is fixed at one end of the filtering pipe 12, the air is dispersed into countless small bubbles through the air diffusing pipe 15, the contact exchange area with water is increased, harmful gas in the flue gas enters the water for filtering, when the water in the filtering water tank 14 reaches the concentration for acid-base neutralization reaction and innocent treatment, ultra-clean discharge is ensured, a second opening is arranged at one side of the lower end of the cyclone dust collector 36, a sealing cover 16 is hinged at one side of the second opening for recovering dust, the opening and closing device comprises two fixing rods 31 fixed at two sides of the mountain end of the supporting frame 13, a bearing rod 39 is jointly fixed at the upper ends of the two fixing rods 31, a sleeve 30 is fixed at one side of the bearing rod 39, a connecting block 24 is sleeved in the sleeve 30 in a sliding manner, a pull rod 23 is fixed at one side of the connecting block 24, one end of the pull rod 23 is fixed at one side of a third furnace door 27, a spring 29 is fixed, a first protection box 32 is fixed on the other side of the bearing rod 39, a second driving motor is fixed on the side wall of one end in the first protection box 32, two rotating plates 38 which are parallel to each other are fixed on the other side of the bearing rod 39, a second rotating roller is connected with the opposite sides of the two rotating plates 38 in a rotating mode, the tail end of an output shaft of the second driving motor penetrates through the side wall of the other end in the first protection box 32 and one side of one of the rotating plates 38 and is fixed at one end of the second rotating roller, the second driving motor drives the second rotating roller to rotate, the second rotating roller drives the first pull rope 25 to contract, the second rotating roller is wound with the first pull rope 25, one end of the first pull rope 25 penetrates through the other side of the bearing rod 39 and the bottom end of the sleeve 30 and extends into the sleeve 30, one end of the first pull rope 25 is fixed at the other end of the connecting block 24, the first pull rope 25 drives the connecting, connecting block 24 drives pull rod 23 to move, pull rod 23 drives third furnace gate 27 to move and open feed inlet 9, one side of sleeve 30 is fixed with two second bracing pieces 54, the one end of two second bracing pieces 54 is fixed respectively in one side of two dead levers 31, the auxiliary stay, furnace body 7 is the toper setting, so that the heat of gathering, keep furnace body 7 internal temperature, the upper end of stove bottom 40 and furnace body 7 all is the arc setting, be convenient for molten liquid to flow into molten bath 41 along curved stove bottom 40, blast pipe 37 adopts the cast steel material to make, high temperature resistant, furnace body 7 comprises resistant firebrick, insulating brick and heat preservation cotton from inside to outside in proper order, thermal-insulated heat preservation.
The invention also provides a method for refining the electrolyte from the carbon slag of the electrolytic cell and utilizing the aluminum ash, which comprises the following steps:
s1, starting the air blower 2 and the gas burner 3 to heat the furnace body 7, or adding carbon blocks, coke and coal powder into the fire bars 44 to heat the furnace body 7;
s2, adding the carbon slag or the aluminum ash of the electrolytic cell to be processed into the furnace body 7 through the second furnace mouth 22 or into the feeding box 57 through the feeding port 47, moving the feeding box 57 to the feeding port 9 through the pulley block 48, opening the sealing door 46 through the oil cylinder 45, and putting the carbon slag or the aluminum ash of the electrolytic cell into the furnace body 7;
s3, preheating energy saving is carried out on carbon slag after the carbon slag enters the furnace body 7, then high-temperature baking is carried out, under the action of high temperature, after electrolyte on the surface layer or the upper layer of the carbon slag flows out, the electrolyte becomes liquid and gathers at the bottom of the groove 42 in the furnace bottom 40 and flows to the molten pool 41, the carbon slag cannot flow along with the flowing of the electrolyte, the scraping amount of the carbon slag in the molten pool 41 is reduced, the carbon slag can be reused after being cooled or directly uses the high-temperature carbon slag as fuel, the electrolyte in the molten pool 41 can be layered at high temperature, impurities with smaller specific gravity can float on the surface, and the purity of the electrolyte is ensured;
s4, in the aluminum ash production, the hot aluminum ash or aluminum ash which is just produced is put into a furnace body 7, the aluminum ash is baked at high temperature, the aluminum liquid is firstly melted and enters a molten pool 41 through a groove 42, secondly, the aluminum ash contains main components of electrolyte, aluminum and aluminum oxide, a slag removing agent and reactants of the electrolyte and oxygen, the aluminum oxide can be dissolved by the electrolyte in a molten state at high temperature, the aluminum oxide is melted and enters the molten pool 41, the aluminum ash is basically recycled as a raw material, and consumption is reduced;
s5, cooling the generated gas in the cold zone device through the exhaust pipe 37, then entering the cyclone dust collector 36 for dust removal, leading the dust-removed gas into the filter water tank 14 through the filter pipe 12, dispersing the gas into countless small bubbles through the gas dispersing pipe 15, increasing the contact exchange area with water, leading the harmful gas in the flue gas to enter the water for filtration, and carrying out acid-base neutralization reaction and innocent treatment when the water in the filter water tank 14 reaches the concentration, thereby ensuring ultra-clean discharge.
In the invention, when in use, the blower 2 and the gas burner 3 are started to heat the interior of the furnace body 7, or carbon blocks, coke and coal powder are added into the furnace bars 44 to heat the interior of the furnace body 7, carbon slag or aluminum ash of an electrolytic cell to be processed is added into the furnace body 7 through the second furnace opening 22, or is added into the feed box 57 through the feed opening 47, the electric slide rail 11 drives the slide block 56 to move, the slide block 56 moves the vehicle body 55 to the upper end of the feed opening 9, the second driving motor drives the second rotating roller to rotate, the second rotating roller drives the first pull rope 25 to contract, the first pull rope 25 drives the connecting block 24 to slide in the sleeve 30, the connecting block 24 drives the pull rod 23 to move, the pull rod 23 drives the third furnace door 27 to move to open the feed opening 9, the first driving motor 51 drives the first rotating roller 53 to rotate, the first rotating roller 53 drives the second pull rope 49 to stretch, thereby driving the pulley block, the feed box 57 is moved to the feed port 9 by the pulley block 48, the oil cylinder 45 opens the sealing door 46, carbon slag or aluminum ash in the electrolytic cell is put in, the second driving motor stops running, the spring 29 is restored to push the connecting block 24 to move, the connecting block 24 pushes the pull rod 23, the pull rod 23 pushes the third furnace door 27 to move to block the feed port 9, generated gas enters the cyclone dust collector 36 for dust removal after being cooled by the cold zone device through the exhaust pipe 37, the gas after dust removal passes through the filter pipe 12 and is introduced into the filter water tank 14, the gas is dispersed into countless small bubbles through the gas dispersing pipe 15, the contact exchange area with water is increased, harmful gas in the flue gas enters water for filtration, acid-base neutralization reaction and harmless treatment are carried out when the water in the filter water tank 14 reaches concentration, and ultra-clean discharge is guaranteed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The method for refining the electrolyte and utilizing the aluminum ash by using the carbon slag of the electrolytic cell is characterized by comprising equipment for refining the electrolyte and utilizing the aluminum ash by using the carbon slag of the electrolytic cell, wherein the equipment comprises a base (1), four corners of the upper end of the base (1) are respectively fixed with a first supporting rod (5), two first supporting rods (5) on the same side form a group, the upper ends of the two first supporting rods (5) in the same group are jointly fixed with an electric sliding rail (11), the upper ends of the two electric sliding rails (11) are respectively provided with two sliding blocks (56), the upper ends of the four sliding blocks (56) are jointly fixed with a feeding device, the upper end of the base (1) is fixedly provided with a support (18), the upper end of the support (18) is fixedly provided with a furnace body (7), one end of the furnace body (7) is obliquely arranged, one end in the furnace body (7) is provided with a preparation cavity, and the other end in the furnace, be equipped with molten bath (41) in furnace body (7), molten bath (41) are located between preparation chamber and the combustion chamber, be equipped with first fire door (21) on the one end lateral wall in molten bath (41), one side of first fire door (21) is equipped with second slide (20), install first furnace door (4) on second slide (20), first furnace door (4) and first fire door (21) are corresponding, bottom one side of molten bath (41) is equipped with discharge gate (19), the top in the preparation chamber is equipped with feed inlet (9), the upper end both sides of furnace body (7) all are fixed with backup pad (10), and the relative one side of two backup pad (10) all is equipped with third slide (26), installs third furnace door (27) jointly in two third slides (26), third furnace door (27) and feed inlet (9) are corresponding, one side equidistant of furnace body (7) is equipped with three second fire door (22), one side of second fire door (22) is equipped with first slide (6), second furnace gate (8) are installed to the upper end of first slide (6), second furnace gate (8) and second furnace gate (22) are corresponding, the bottom of preparation intracavity is equipped with stove bottom (40), be fixed with transition piece (43) between stove bottom (40) and second furnace gate (22), the upper end of stove bottom (40) is equidistant to be equipped with a plurality of slots (42), the one end of slot (42) extends to on the one end lateral wall in molten bath (41), be fixed with fire bars (44) jointly on the relative lateral wall in the combustion chamber, gas combustion machine (3) and air-blower (2) are installed from top to bottom in proper order to one side of furnace body (7), gas combustion machine (3) and air-blower (2) all link up the setting with the combustion chamber, and gas combustion machine (3) are located the upper end of fire bars (44), the air blower (2) is positioned at the lower end of the fire bar (44), an exhaust pipe (37) penetrates through the other side of the furnace body (7), a cooling device is arranged on the exhaust pipe (37), a dust falling device is arranged at one end of the exhaust pipe (37), a support frame (13) is arranged at the other side of the furnace body (7), and an opening and closing device is arranged at the upper end of the support frame (13); the feeding device comprises a vehicle body (55) fixed at the upper ends of four sliding blocks (56), a second protection box (50) is fixed at one side of the upper end of the vehicle body (55), a first driving motor (51) is fixed on the side wall of one end in the second protection box (50), two supporting blocks (52) which are parallel to each other are fixed at the upper end of the vehicle body (55), a first rotating roller (53) is connected to one opposite side of the two supporting blocks (52) in a rotating mode, an output shaft of the first driving motor (51) penetrates through the side wall of the other end in the second protection box (50) and one side of one of the supporting blocks (52) and is fixed at one end of the first rotating roller (53), a second pull rope (49) is wound on the first rotating roller (53), the second pull rope (49) penetrates through the upper end of the vehicle body (55) and extends to the lower end of the vehicle body (55), and one end of the second pull rope (49) is connected with a pulley block, one end of the pulley block (48) is connected to the lower end of the vehicle body (55), the other end of the pulley block (48) is connected with a feeding box (57), a feeding port (47) is formed in the upper end of the feeding box (57), a first opening is formed in the lower end of the feeding box (57), sealing doors (46) are hinged to two sides of the first opening, oil cylinders (45) are rotatably connected to two sides of the feeding box (57), and the tail ends of piston rods of the oil cylinders (45) are rotatably connected to one side of each sealing door (46);
the method comprises the following steps:
s1, starting the air blower (2) and the gas burner (3) to heat the furnace body (7), or adding carbon blocks, coke and coal powder into the fire bars (44) to heat the furnace body (7);
s2, adding the carbon slag or the aluminum ash of the electrolytic cell to be processed into the furnace body (7) through the second furnace opening (22) or into the feeding box (57) through the feeding opening (47), moving the feeding box (57) to the feeding opening (9) through the pulley block (48), opening the sealing door (46) through the oil cylinder (45), and putting the carbon slag or the aluminum ash of the electrolytic cell into the furnace body (7);
s3, after the carbon slag enters the furnace body (7), preheating energy is firstly carried out, then high-temperature baking is carried out, under the action of high temperature, after the electrolyte on the surface layer or the upper layer of the carbon slag flows out, the electrolyte is melted into liquid, the liquid is gathered at the bottom of the groove (42) in the furnace bottom (40) and flows to the molten pool (41), the carbon slag cannot flow along with the flowing of the electrolyte, the removal amount of the carbon slag in the molten pool (41) is reduced, the carbon slag can be reused after being cooled or directly used as fuel, the electrolyte in the molten pool (41) can be layered at high temperature, impurities with smaller specific gravity can float on the surface, and the purity of the electrolyte is ensured;
s4, in the aluminum ash production, the hot aluminum ash or aluminum ash which is just produced is put into a furnace body (7), the aluminum ash is baked at high temperature, the aluminum liquid is firstly melted and enters a molten pool (41) through a groove (42), and then the aluminum ash mainly comprises electrolyte, aluminum and aluminum oxide, and also comprises a deslagging agent and a reactant of the electrolyte and oxygen, the aluminum oxide can be dissolved by the electrolyte in a molten state at high temperature, the aluminum oxide is melted and enters the molten pool (41), and the aluminum ash is basically recycled as a raw material, so that the consumption is reduced;
s5, cooling the generated gas in a cold area device through an exhaust pipe (37), then entering a cyclone dust collector (36) for dust removal, leading the dust-removed gas into a filtering water tank (14) through a filter pipe (12), dispersing the gas into countless small bubbles through a gas dispersing pipe (15), increasing the contact exchange area with water, leading harmful gas in the flue gas to enter water for filtering, and carrying out acid-base neutralization reaction and harmless treatment when the water in the filtering water tank (14) reaches concentration, thereby ensuring ultra-clean discharge.
2. The method for refining the electrolyte and utilizing the aluminum ash by the carbon slag in the electrolytic cell according to claim 1, wherein the cooling device comprises a cooling box (35) fixed on one side of the upper end of the support frame (13), the exhaust pipe (37) penetrates through one side of the cooling box (35) and extends to the other side, a water feeding pipe is arranged on one side of one end of the cooling box (35) in a penetrating manner, one end of the water feeding pipe is connected with a water pump (33), one side of the water pump (33) is connected with a water inlet pipe (28), one side in the support frame (13) is provided with a circulating box (17), one end of the water inlet pipe (28) extends to the bottom end in the circulating box (17), the other side of one end of the cooling box (35) is provided with a water outlet pipe (34) in a penetrating manner, and one end of the water outlet pipe (34) extends.
3. The method for refining the electrolyte and utilizing the aluminum ash from the carbon slag in the electrolytic cell according to claim 1, wherein the dust-settling device comprises a cyclone (36) which is arranged at one end of an exhaust pipe (37) in a penetrating manner, a filter pipe (12) is fixedly arranged at the upper end of the cyclone (36) in a penetrating manner, a filter water tank (14) is arranged at the other side in the support frame (13), one end of the filter pipe (12) extends into the filter water tank (14), an air diffusing pipe (15) is fixedly arranged at one end of the filter pipe (12), a second opening is arranged at one side of the lower end of the cyclone (36), and a sealing cover (16) is hinged to one side of the second opening.
4. The method for refining the electrolyte and utilizing the aluminum ash by the carbon slag of the electrolytic cell according to claim 1, wherein the open-close device comprises two fixing rods (31) fixed at two sides of the mountain end of the supporting frame (13), the upper ends of the two fixing rods (31) are jointly fixed with a bearing rod (39), one side of the bearing rod (39) is fixed with a sleeve (30), a connecting block (24) is slidably sleeved in the sleeve (30), one side of the connecting block (24) is fixed with a pull rod (23), one end of the pull rod (23) is fixed at one side of a third furnace door (27), a spring (29) is fixed at the bottom in the sleeve (30), one end of the spring (29) is fixed at the other side of the connecting block (24), the other side of the bearing rod (39) is fixed with a first protection box (32), and a second driving motor is fixed on the side wall of one end in the first protection box (32), two parallel rotating plates (38) are fixed on the other side of the bearing rod (39), a second rotating roller is connected on the opposite side of the two rotating plates (38) in a rotating way, the tail end of the output shaft of the second driving motor penetrates through the side wall of the other end in the first protection box (32) and one side of one rotating plate (38) and is fixed at one end of the second rotating roller, a first pull rope (25) is wound on the second rotating roller, one end of the first pull rope (25) penetrates through the other side of the bearing rod (39) and the bottom end of the sleeve (30) and extends into the sleeve (30), one end of the first pull rope (25) is fixed at the other end of the connecting block (24), two second supporting rods (54) are fixed on one side of the sleeve (30), and one ends of the two second supporting rods (54) are respectively fixed on one sides of the two fixing rods (31).
5. The method for refining electrolyte and utilizing aluminum ash from carbon residue in the electrolytic cell as claimed in claim 1, wherein the furnace body (7) is arranged in a conical shape.
6. The method for refining the electrolyte and utilizing the aluminum ash from the carbon residue of the electrolytic cell according to claim 1, wherein the upper ends of the furnace bottom (40) and the furnace body (7) are both arc-shaped.
7. The method for refining electrolyte and utilizing aluminum ash from carbon residue in an electrolytic cell as claimed in claim 1, wherein said exhaust pipe (37) is made of cast steel.
8. The method for refining the electrolyte and utilizing the aluminum ash from the carbon slag of the electrolytic cell according to claim 1, wherein the furnace body (7) is composed of refractory bricks, insulating bricks and insulating cotton in sequence from inside to outside.
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Effective date of registration: 20231203 Address after: 029200 Industrial Park, Tongliao City, the Inner Mongolia Autonomous Region Patentee after: INNER MONGOLIA HMHJ ALUMINUM ELECTRICITY Co.,Ltd. Address before: 471000 No. 55, South distillery Road, Chengguan Town, Yichuan County, Luoyang City, Henan Province Patentee before: Wang Huizhi |
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