CN107287423A - A kind of continuous aluminium metallurgy device - Google Patents
A kind of continuous aluminium metallurgy device Download PDFInfo
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- CN107287423A CN107287423A CN201710480594.4A CN201710480594A CN107287423A CN 107287423 A CN107287423 A CN 107287423A CN 201710480594 A CN201710480594 A CN 201710480594A CN 107287423 A CN107287423 A CN 107287423A
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- combustion
- alcl
- gas
- regenerator
- reative cell
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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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
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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
- C22B21/00—Obtaining aluminium
- C22B21/02—Obtaining aluminium with reducing
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a kind of continuous aluminium metallurgy device, including combustion system, reaction system, condenser system and vacuum system, wherein, the combustion system includes combustion chamber and regenerator, and the regenerator is connected with the combustion chamber；The reaction system includes reative cell and AlCl3Sublimation tank, the reative cell is spiral propeller form；The condenser system connects with the reaction system；The vacuum system connects with the condenser system.Thus, the device can replace existing electric furnace to prepare metallic aluminium to carry out vacuum carbothermal reduction by using regenerative gas heater, the energy consumption that is consumed of reduction course of reaction, and then reduce the cost that vacuum carbothermal reduction prepares metallic aluminium, be industrialized possibility further；By using spiral propeller form, continuous feeding and discharging is realized, manipulation strength is reduced, industrialized implementation is more beneficial for.
Description
Technical field
The invention belongs to prepare the device field of metallic aluminium, more particularly to the continuous preparation gold that a kind of regenerative gas is heated
Belong to the apparatus and system of aluminium.
Background technology
At present, the industrial process of metallic aluminium mainly uses cryolite-alumina fused salt electrolysis process, makees molten with aluminum oxide
Matter, ice crystal masonry solvent, carbon material make electrode, are passed through electric current, are electrolysed and obtain primary aluminum.But, electrolysis production
There is following defect in aluminium：Need to consume substantial amounts of expensive raw material in preparation process, cause the more other metals of cost of electrolytic aluminium high；
A large amount of greenhouse gases can be not only discharged in aluminium electrolysis process, a large amount of smoking gas containing fluorines, the pitch that anode mix sintering is produced can be also produced
Also it can volatilize, surrounding environment and health are caused damage；The electrolysis often produces ton aluminium about power consumption 13000-15000 thousand
Watt-hour, cost is high.Nearest many decades, aluminium metallurgy new method mainly has normal pressure carbothermic method, vacuum carbothermal reduction method（Including straight
Connect carbothermic method, vacuum carbothermal reduction-vulcanization method and vacuum carbothermal reduction-halogen process）, ionic liquid electrodeposition method etc..
But, there is following defect in above-mentioned aluminium metallurgy new method production aluminium：Normal pressure carbothermic method reduction temperature is up to more than 2000 DEG C, needs
To be carried out under conditions of high temperature, energy consumption is very high；The cost of material that ionic liquid electrodeposition method is used is high；Direct carbon thermal reduction
The product that method is obtained mutually melts at high temperature, it is difficult to separated with slag phase, is hardly obtained metallic aluminium, causes low yield.Cause
How this, design a kind of low energy consumption, metallic aluminium yield and purity height, the aluminium metallurgy device of continuous feed, as current urgent need
The problem of solution.
The content of the invention
For above-mentioned problem present in prior art, the invention provides a kind of continuous aluminium metallurgy device, by using storage
Hot type gas-operated thermal bath facility can replace existing electric furnace and prepare metallic aluminium to carry out vacuum carbothermal reduction, and reduction course of reaction is disappeared
The energy consumption of consumption, and then reduce vacuum carbothermal reduction and prepare the cost of metallic aluminium, be industrialized possibility further；By adopting
Spiral propeller form is used, continuous feeding and discharging is realized, manipulation strength is reduced, industrialized implementation is more beneficial for；By adopting
Heat storage type combustion mode is used, reaction indoor temperature is uniform, can be set by nozzle and flexibly control each section of temperature, be conducive to reduction anti-
The generation answered；By the way that carbon-thermal reduction and chlorination reaction are present in reactor simultaneously, alchlor contacts more abundant with raw material,
The generation of side reaction is limited to a certain extent, improves reduction efficiency；By the way that metallic aluminium is collected respectively with alchlor, carry
The yield and the purity of metallic aluminium of high metallic aluminium.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
The invention provides a kind of continuous aluminium metallurgy device, including combustion system, reaction system, condenser system and vacuum system, its
In, the combustion system includes combustion chamber and regenerator, and is connected with the reaction system, and heat is provided for reaction；It is described anti-
System is answered to include reative cell and AlCl3Sublimation tank, the reative cell includes spiral propeller and shell, and the shell is by the spiral shell
Rotation propeller is coated completely, is internally formed reaction compartment, the reative cell is the reactor of spiral propeller form, for continuous
There is provided raw material to be reacted, surround around the reative cell and be disposed with the combustion chamber；The AlCl3Sublimation tank with it is described anti-
Room is answered to connect, its gaseous state AlCl generated3Occurs chlorination reaction into the reative cell；The condenser system and the reaction system
System connects, and the product of the reaction system reaction generation enters after condenser system cooling, obtains metallic aluminium；The vacuum system with
The condenser system connects, and for making the reaction system and condenser system be in vacuum state, reaction is sent out under vacuum
It is raw.
Inventor has found, the invention provides a kind of continuous aluminium metallurgy device, by using regenerative gas heater energy
Enough replace existing electric furnace and prepare metallic aluminium, the energy consumption that reduction course of reaction is consumed to carry out vacuum carbothermal reduction, and then reduce
Vacuum carbothermal reduction prepares the cost of metallic aluminium, be industrialized possibility further；By using spiral propeller form,
Continuous feeding and discharging is realized, manipulation strength is reduced, industrialized implementation is more beneficial for；By using heat storage type combustion mode,
React indoor temperature uniform, can be set by nozzle and flexibly control each section of temperature, be conducive to the generation of reduction reaction；By by carbon
Thermal response is present in reactor simultaneously with chlorination reaction, and alchlor contacts more abundant with raw material, limits to a certain extent
The generation of side reaction, improves reduction efficiency；By the way that metallic aluminium is collected respectively with alchlor, the yield of metallic aluminium is improved
And the purity of metallic aluminium.
According to a particular embodiment of the invention, the combustion system is regenerative combustion system, using single accumulation of heat or double
The combustion system of accumulation of heat；The regenerator is connected with the combustion chamber.
According to a particular embodiment of the invention, motor, the motor and the screw propulsion are provided with outside the reative cell
Device is connected, and for driving the spiral propeller to rotate, raw material is continuously pushed ahead with the spiral propeller.
Carbon-thermal reduction occurs during being pushed ahead in the presence of the spiral propeller for raw material, the intermediate product of generation with it is described
AlCl3Gas reacts rapidly.
According to a particular embodiment of the invention, the combustion system also includes combustion-supporting wind pipeline, gas pipeline and fume pipe
Road, the gas access of the regenerator is connected with the combustion-supporting wind pipeline and/or gas pipeline respectively, the cigarette of the regenerator
Gas outlet is connected with the flue, and the smoke inlet of the regenerator is connected with the combustion chamber.
According to a particular embodiment of the invention, the combustion air being passed through in the combustion-supporting wind pipeline be air or oxygen-enriched air,
The combustion gas that gas pipeline is passed through is natural gas, coke-stove gas, water-gas, pyrolysis coal gas or oil liquefied gas.
According to a particular embodiment of the invention, the combustion system also includes gas tee reversal valve and/or combustion air three
Logical reversal valve, wherein, the gas tee reversal valve is connected with gas pipeline, flue and regenerator respectively, described combustion-supporting
Wind three-way diverter valve is connected with combustion-supporting wind pipeline, flue and regenerator respectively.
According to a particular embodiment of the invention, the one or more pairs of burners of the combustion chamber placement, are connected with the regenerator.
According to a particular embodiment of the invention, the condenser system includes metallic aluminium drainer and AlCl3Drainer, is used for
Reaction product metallic aluminium is collected respectively with alchlor, wherein, the metallic aluminium drainer goes out with the reative cell
Gas port is connected and is arranged in above the reative cell, the AlCl3Drainer respectively with the metallic aluminium drainer and described true
Empty set system connection.
Meanwhile, present invention also offers a kind of metallurgy method for aluminum using a kind of above-mentioned continuous aluminium metallurgy device, including it is following
Step：
（1）Set-up procedure：By AlCl3Powder is placed in AlCl3In sublimation tank；Vacuum system is opened, system pressure is reduced；Open combustion
Burning system, introducing combustion air and combustion gas are burnt after being preheated by regenerator into combustion chamber, or introducing combustion air passes through
Burnt after regenerator preheating with the combustion gas being introduced directly into combustion chamber, the high-temperature flue gas heating response room produced of burning；
（2）Preparation process：After the completion of reative cell heating, raw material is added in reative cell by spiral propeller, as spiral is pushed away
Enter device constantly to push ahead, fully carry out carbon-thermal reduction, obtain intermediate product；Heat AlCl3Sublimation tank carries out gasification process, obtains
To gaseous state AlCl3, the gaseous state AlCl3Further occur chlorination reaction with the intermediate product into reative cell and obtain AlCl
Gas；In the presence of vacuum system, the AlCl gases are condensed into condenser system, obtain metallic aluminium and AlCl3Gu
Body.
According to a particular embodiment of the invention, step（1）In the system pressure be reduced for 30Pa or so；The combustion
Burning system is regenerative combustion system, including A sides combustion system and B sides combustion system, and its specific operation process is：Use A sides
Combustion system carries out combustion process, and the combustion air of normal temperature and combustion gas are burnt into combustion chamber, the high-temperature flue gas heating of generation
Discharged after the regenerator through B sides combustion system reclaims heat after the reative cell, complete heat-accumulating process；Complete a combustion period
Afterwards, B sides combustion system carries out combustion process, and the combustion air of normal temperature enters to be preheated in regenerator, while the combustion gas of normal temperature is entered
Enter to be preheated in regenerator or without regenerator warm, both are burnt into combustion chamber, the high temperature of generation
Discharged after the regenerator through A sides combustion system reclaims heat after reative cell described in flue gas, complete heat-accumulating process；It is so heavy
Multiple, alternately burning, accumulation of heat, exothermic process, it is ensured that continue, stable heating response room, realize and efficiently utilize burner exhaust heat；
Wherein, the combustion air or combustion gas enter preheated in regenerator after be warming up to more than 900 DEG C, fired into combustion chamber
Burn, produce behind 1500-1700 DEG C of high-temperature flue gas, heating response room, reclaim heat via regenerator again after be cooled to 250 DEG C of left sides
It is right；Step（2）In the raw material carry out suppressing balling-up for aluminum oxide or salic bauxite and carbonaceous reducing agent and obtain
Ball material, wherein, in the raw material mass ratio of aluminum oxide and carbonaceous reducing agent be 1:3-5, the carbonaceous reducing agent is solid
Determine carbon content ＞ 50% carbon raw material；The charging process of the raw material is：The ball material that compacting balling-up is obtained leads to as raw material
Cross in feed system feeding raw material warehouse, the air entered using nitrogen in raw material warehouse described in line replacement, it is ensured that the raw material storage
Oxygen content ＜ 0.1% in storehouse, the raw material is entered in the reative cell via intermediate bin；The reative cell is by the high temperature
During rising to 1200-1500 DEG C carbon-thermal reduction occurs for flue gas temperature；The AlCl3Sublimation tank carries out the temperature of gasification process
Spend for 80-250 DEG C；The reaction run time of raw material is 45-120min in the reative cell；The condenser system concrete operations
Cheng Wei：The temperature control of the metallic aluminium drainer is at 200-400 DEG C or so so that the AlCl gases hair that the reative cell is obtained
Raw disproportionated reaction generation metallic aluminium and AlCl3, wherein, metallic aluminium is condensed into solid-state, AlCl3For gaseous state；The gaseous state AlCl3Enter
Enter AlCl3Condensation process is further carried out in drainer, AlCl is obtained3Solid.
Beneficial effects of the present invention are as follows：
（1）The invention provides a kind of continuous aluminium metallurgy device, replace in the prior art by using regenerative gas heater
Electric furnace prepare metallic aluminium to carry out vacuum carbothermal reduction, the energy consumption that reduction course of reaction is consumed, and then reduce vacuum carbon heat
Reduction prepares the cost of metallic aluminium, be industrialized possibility further.
（2）The invention provides a kind of continuous aluminium metallurgy device, by using spiral propeller form, realize and be back to back
Material, reduces manipulation strength, is more beneficial for industrialized implementation.
（3）The invention provides a kind of continuous aluminium metallurgy device, using heat storage type combustion mode, reaction indoor temperature is uniform,
It can be set by nozzle and flexibly control each section of temperature, be conducive to the generation of reduction reaction.
（4）The invention provides a kind of continuous aluminium metallurgy device, alchlor contacts more abundant with raw material, carbon-thermal reduction and chlorine
Change reaction to be simultaneously present in reactor, the generation of side reaction is limited to a certain extent, reduction efficiency is improved.
（5）The invention provides a kind of continuous aluminium metallurgy device, metallic aluminium is collected respectively with alchlor, metal is improved
The yield of aluminium and the purity of metallic aluminium.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein, 1, combustion-supporting wind pipeline, 2, gas pipeline, 3, flue, 4, three-way diverter valve, 5, combustion chamber, 6, burner,
7th, reative cell, 8, AlCl3Sublimation tank, 9, metallic aluminium drainer, 10, AlCl3Drainer, 11, vavuum pump, 12, raw material warehouse, 13,
Intermediate bin, 14, lock hopper valve.
Embodiment
Embodiments of the invention are described below in detail.The embodiments described below is exemplary, is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Unreceipted particular technique or condition in embodiment, according to text in the art
Offer described technology or condition or carried out according to product description.Agents useful for same or the unreceipted production firm person of instrument,
For can be by the conventional products of acquisition purchased in market.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention,
" multiple " are meant that two or more, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
According to an aspect of the present invention, the invention provides a kind of continuous aluminium metallurgy device, including combustion system, reaction system
System, condenser system and vacuum system, wherein, the combustion system includes combustion chamber 5 and regenerator, and connects with the reaction system
Connect, heat is provided for reaction；The reaction system includes reative cell 7 and AlCl3Sublimation tank 8, the reative cell is pushed away including spiral
Enter device and shell, the shell coats the spiral propeller completely, be internally formed reaction compartment, the reative cell is spiral
The reactor of propeller form, is reacted for continuously providing raw material, is surround around the reative cell and is disposed with the combustion
Burn room；The AlCl3Sublimation tank is connected with the reative cell, its gaseous state AlCl generated3Occurs chlorination into the reative cell anti-
Should；The condenser system connects with the reaction system, and the product of the reaction system reaction generation is cooled down into condenser system
Afterwards, metallic aluminium is obtained；The vacuum system connects with the condenser system, for being in the reaction system and condenser system
Vacuum state, reaction occurs under vacuum.
Inventor has found, the invention provides a kind of continuous aluminium metallurgy device, by using regenerative gas heater energy
Enough replace existing electric furnace and prepare metallic aluminium, the energy consumption that reduction course of reaction is consumed to carry out vacuum carbothermal reduction, and then reduce
Vacuum carbothermal reduction prepares the cost of metallic aluminium, be industrialized possibility further；By using spiral propeller form,
Continuous feeding and discharging is realized, manipulation strength is reduced, industrialized implementation is more beneficial for；By using heat storage type combustion mode,
React indoor temperature uniform, can be set by nozzle and flexibly control each section of temperature, be conducive to the generation of reduction reaction；By by carbon
Thermal response is present in reactor simultaneously with chlorination reaction, and alchlor contacts more abundant with raw material, limits to a certain extent
The generation of side reaction, improves reduction efficiency；By the way that metallic aluminium is collected respectively with alchlor, the yield of metallic aluminium is improved
And the purity of metallic aluminium.
The invention provides a kind of continuous aluminium metallurgy device, including reaction system, place is provided for carrying out reaction for raw material.
The reaction system includes reative cell 7 and AlCl3Sublimation tank 8, the reative cell and the AlCl3Sublimation tank is connected, for by institute
State AlCl3The gaseous state AlCl that gasification process is obtained is carried out in sublimation tank3It is passed into the reative cell, the gaseous state AlCl3With it is described
Reative cell carries out the intermediate product that carbon-thermal reduction is obtained（Such as Al4C3、Al4O4The intermediate products such as C）Further chlorination reaction is carried out,
Obtain AlCl gases.Further, the reative cell and the AlCl3Connected between sublimation tank using pipeline so that described
AlCl3Gaseous state AlCl in sublimation tank3Entered via the pipeline in the reative cell.
According to a particular embodiment of the invention, the reative cell is spiral propeller form, is entered for continuously providing raw material
Around the combustion chamber is disposed with around row reaction, the reative cell, for improving reaction chamber temperature, raw material is made up to
Reaction temperature.The reative cell includes spiral propeller and shell, and the shell coats the spiral propeller completely, described
Combustion chamber is around the periphery for being arranged in the shell, it is ensured that the reative cell is relatively independent system with the combustion chamber.By
This, it is ensured that the combustion chamber is only thermal source needed for the reative cell is provided, and impurity will not be introduced for reative cell, so that will not
Purity to metallic aluminium produces harmful effect.Meanwhile, the spiral propeller extends transversely through whole reative cell, for will be described anti-
Answer the raw material of room charging aperture as the spiral propeller is pushed ahead, raw material is pushed away forward in the presence of the spiral propeller
Carbon-thermal reduction, the intermediate product of generation and the AlCl occur during entering3Gas reacts rapidly.Further, institute
State AlCl3Gaseous state AlCl in sublimation tank3Pushed ahead in the presence of vavuum pump together with raw material up to reaching discharging opening, and
Further occur chlorination reaction with the intermediate product after carbon-thermal reduction during advance, obtain AlCl gases and residue；Wherein,
The AlCl gases carry out refrigerated separation in the presence of vavuum pump, into condenser system and obtain product metal aluminium and AlCl3Gu
Body, moreover, the CO gases generated in course of reaction enter condenser system in the presence of vavuum pump together with AlCl gases；Reaction
Remaining residue moves to slag notch discharge with spiral propeller.Further, during the course of the reaction, rotation can be adjusted to promote
The velocity of rotation and AlCl of device3Gasification rate, to ensure that material reacts complete before reaching discharging opening.Moreover, reacting
The intermediate product generated in journey can rapidly and AlCl3Gas contacts and carries out next step chlorination reaction, will not be with intermediate product
Form exists for a long time, advantageously reduces the generation of side reaction.Hereby it is achieved that alchlor contacts more abundant with raw material, carbon heat
Reaction is present in reactor simultaneously with chlorination reaction, and the generation of side reaction is limited to a certain extent, reduction efficiency is improved.
According to a particular embodiment of the invention, outside the reative cell provided with motor, feed system, raw material warehouse 12 and in
Between storehouse 13；Wherein, the feed system, for aluminum oxide or salic bauxite to be pressed into carbonaceous reducing agent
Ball processing, obtains ball material, is used as the raw material of reative cell；The raw material warehouse is connected with the feed system, for by it is described enter
The ball material obtained in material system is transported in the raw material warehouse, meanwhile, use inert gas（Such as N2）Enter former described in line replacement
Expect the air in warehouse, it is ensured that oxygen content ＜ 0.1% in the raw material warehouse；Described intermediate bin one end and the raw material warehouse
Connection, for the ball material in the raw material warehouse to be transported into the intermediate bin, the intermediate bin other end passes through two lock hoppers
Valve 14 is connected with the charging aperture of the reative cell, and intermediate bin is controlled respectively for the closure or openness by the lock hopper valve
Ball material is transported to being passed through in the reative cell or disconnected, hereby it is achieved that control being passed through or break for reative cell base feed
Open state.The motor is connected with the spiral propeller, for driving the spiral propeller with certain rotational speed, it is ensured that
Raw material is continuously pushed ahead with the spiral propeller, thus, and the device uses spiral propeller form, realizes
Continuous feeding and discharging, reduces manipulation strength, is more beneficial for industrialized implementation.Further, the AlCl3Sublimation tank with it is described
Pipeline connection between the charging aperture of reative cell and the lock hopper valve, for by the AlCl3Gaseous state AlCl in sublimation tank3Through
The reative cell is passed into by the pipeline so that the gaseous state AlCl3In being obtained with reative cell progress carbon-thermal reduction
Between product carry out further chlorination reaction, obtain AlCl gases.
The invention provides a kind of continuous aluminium metallurgy device, the device includes combustion system, for in the reaction system
Raw material carry out enough thermals source should be provided.According to a particular embodiment of the invention, the combustion system includes combustion chamber 5 and stored
Hot cell, the regenerator is connected with the combustion chamber；Wherein, the combustion chamber is used to be that combustion air and combustion gas provide the field burnt
Institute, meanwhile, the high-temperature flue gas heating response room produced of burning；The regenerator is used to draw the high-temperature flue gas behind heating response room
Enter progress recovery heat in regenerator, meanwhile, fired to entering back into combustion chamber after combustion air and/or combustion gas progress regeneration treatment
Burn.Further, the combustion chamber can be square, cylindrical or other shapes, as long as can be that combustion air and combustion gas are carried out
The high-temperature flue gas that burning is provided place and produced using burning is heated for the reative cell.Thus, the device leads to
Cross using regenerative gas heater, existing electric furnace can be replaced to carry out vacuum carbothermal reduction and prepare metallic aluminium, reduction is anti-
The energy consumption that process is consumed is answered, and then reduces the cost that vacuum carbothermal reduction prepares metallic aluminium, is that industrialized possibility is more entered
One step, realizes and efficiently utilizes burner exhaust heat.
According to a particular embodiment of the invention, the combustion system is regenerative combustion system, using single accumulation of heat or double
The combustion system of accumulation of heat.When the combustion system is double heat storage type combustion system, combustion air passes through regenerator accumulation of heat with combustion gas
Burnt afterwards into combustion chamber, meanwhile, after reclaiming heat through regenerator again behind the high-temperature flue gas heating response room produced of burning
Discharge, realizes and efficiently utilizes burner exhaust heat；When the combustion system is single heat storage type combustion system, combustion air passes through accumulation of heat
With being burnt without the combustion gas of regenerator the pre-heat treatment into combustion chamber after the preheating of room, meanwhile, burn the high-temperature flue gas produced
Discharged after reclaiming heat through regenerator again behind heating response room, realize and efficiently utilize burner exhaust heat.
According to a particular embodiment of the invention, the combustion system also includes combustion-supporting wind pipeline 1, gas pipeline 2 and flue gas
Pipeline 3, wherein, the gas access of the regenerator is connected with the combustion-supporting wind pipeline and/or gas pipeline respectively, for
Combustion air and/or combustion gas are introduced in regenerator, the pre-heat treatment is carried out in the regenerator for having reclaimed heat smoke heat, is stored
High temperature combustion supporting air and/or high-temperature fuel gas after heat treatment；The exhanst gas outlet of the regenerator is connected with the flue, is used
The low-temperature flue gas obtained in discharge regenerator after recovered heat；The smoke inlet of the regenerator connects with the combustion chamber
Connect, for by combustion air in combustion chamber and fuel gas buring, obtained high-temperature flue gas after thermal source is provided for reative cell, to be sent into and stored
In hot cell, heat is stayed on heat storage, complete the flue gas after accumulation of heat and discharge immediately.According to a particular embodiment of the invention, institute
Stating combustion system also includes three-way diverter valve 4.High-temperature flue gas, which enters regenerator, to be completed after accumulation of heat, three-way diverter valve commutation, low temperature
Combustion air or combustion gas enter regenerator, absorb the heat on heat storage, and then obtain high temperature combustion supporting air or high-temperature fuel gas.
Further, the three-way diverter valve 4 includes gas tee reversal valve and/or combustion air three-way diverter valve, wherein, it is described combustion-supporting
Wind three-way diverter valve is connected with combustion-supporting wind pipeline, flue and regenerator respectively；The gas tee reversal valve respectively with combustion
Feed channel, flue and combustion chamber connection.Further, when being provided only with combustion air three-way diverter valve, the combustion system
For single heat storage type combustion system, the gas pipeline is directly connected with the combustion chamber so that combustion gas is without the pre-heat treatment
Combustion-supporting gas carries out the pre-heat treatment, and the combustion air after being preheated by regenerator enters with the combustion gas without regenerator the pre-heat treatment to burn
Room is burnt, meanwhile, discharge, realize after reclaiming heat through regenerator again behind the high-temperature flue gas heating response room produced of burning
Efficiently utilize burner exhaust heat；When combustion air three-way diverter valve and gas tee reversal valve all in the presence of, the combustion system is double
During regenerative combustion system so that combustion-supporting gas and combustion gas carry out the pre-heat treatment simultaneously.Hereby it is achieved that efficiently remaining using burning
Heat, reduces the production cost of the energy.
According to a particular embodiment of the invention, the combustion chamber placement is in the reative cell surrounding, and arrangement annular in shape is used for
The high-temperature flue gas produced after being burnt by combustion gas and combustion air provides the thermal source of carbon-thermal reduction for the reative cell.According to this
Burner 6 is provided with the specific embodiment of invention, the side wall of the combustion chamber in pairs, the burner is connected with the regenerator, used
In introducing combustion gas and combustion air or discharge heat smoke for the combustion chamber so that combustion gas and combustion air are via in paired burner
One burner enter burnt in combustion chamber, behind the high-temperature flue gas heating response room for generation of burning through by another in paired burner
One burner enters after regenerator reclaims heat is discharged by flue.Further, the quantity of the burner is a pair or many
It is right, alternately burning, accumulation of heat, preheating, combustion process, it is ensured that continue, stable heating response room；It is preferred that, burner is provided with more
Right, each pair burner is all correspondingly arranged at the different sections of square combustion chamber, can be precisely controlled the different sections of the reative cell
Heating-up temperature.Thus, the device uses heat storage type combustion mode, and reaction indoor temperature is uniform, and flexible control can be set by nozzle
Each section of temperature is made, is conducive to the generation of reduction reaction.
According to a particular embodiment of the invention, the combustion system includes A sides combustion system and B sides combustion system, is used for
Thermal source is provided for the reative cell.The specific work process of the combustion system is as follows：Carried out using A sides combustion system burned
Journey, the combustion air of normal temperature and combustion gas are burnt into combustion chamber, and the high-temperature flue gas of generation is heated after the reative cell through the combustion of B sides
The regenerator of burning system is reclaimed and discharged after heat, completes heat-accumulating process；Complete after a combustion period, B sides combustion system is carried out
Combustion process, the combustion air of normal temperature enters to be preheated in regenerator, is preheated while the combustion gas of normal temperature enters in regenerator
Or without regenerator warm, both are burnt into combustion chamber, the high-temperature flue gas of generation heats the reative cell
Reclaim and discharged after heat by the regenerator of A sides combustion system, complete heat-accumulating process；So repeat, alternately burn, store
Heat, exothermic process, it is ensured that lasting, stable heating response room, realize and efficiently utilize burner exhaust heat.
When the combustion system is single heat storage type combustion system, combustion air threeway is changed described in the combustion system of adjustment A sides
To valve, make the combustion-supporting wind pipeline keep connecting with the gas access of regenerator, the gas pipeline directly with the combustion chamber
Connection so that combustion air carries out the pre-heat treatment, combustion gas without regenerator the pre-heat treatment through regenerator, i.e. the combustion air of normal temperature
Carry out heating the combustion air after being preheated in the regenerator for reclaiming heat smoke heat into accumulation of heat, the combustion gas of normal temperature is not
The pre-heat treatment is carried out by regenerator, directly with the preheated-combustion-supporting wind that regenerator is discharged by being passed through the combustion together with burner
Burn room to be burnt, the high-temperature flue gas produced that burns carries out carbon-thermal reduction to the reative cell and provides thermal source, after being cooled
Heat smoke, the regenerator escaped and enter via burner in the combustion system of B sides carries out accumulation of heat and reclaims heat treatment, most passes through afterwards
Discharged by flue；When the combustion system is double heat storage type combustion system, combustion air described in the combustion system of adjustment A sides
Three-way diverter valve and the gas tee reversal valve so that combustion air and combustion gas carry out the pre-heat treatment simultaneously, i.e. normal temperature it is combustion-supporting
The combustion gas of wind and normal temperature, which respectively enters accumulation of heat, reclaims in the regenerator of heat smoke heat and carries out after heating and being preheated
Combustion air and combustion gas, the combustion chamber is passed through by burner and is burnt together, and the high-temperature flue gas produced that burns is to the reaction
The carbon-thermal reduction carried out in room provides thermal source, and the heat smoke after being cooled is escaped and enter in the combustion system of B sides via burner
The regenerator carry out accumulation of heat reclaim heat treatment, finally discharged via flue.Then, a combustion period to be done
Afterwards, B sides combustion system carries out combustion process, and the combustion air of normal temperature enters to be preheated in regenerator, while the combustion gas of normal temperature is entered
Enter to be preheated in regenerator or without regenerator warm, both are burnt into combustion chamber, the high temperature of generation
Discharged after the regenerator through A sides combustion system reclaims heat after reative cell described in flue gas, complete heat-accumulating process；It is so heavy
Multiple, alternately burning, accumulation of heat, exothermic process, it is ensured that continue, stable heating response room, realize and efficiently utilize burner exhaust heat.
The invention provides a kind of new device for preparing metallic aluminium, the device includes condenser system, with the reaction system
System connects, and the product of the reaction system reaction generation enters after condenser system cooling, obtains final product metallic aluminium.According to this
The specific embodiment of invention, the condenser system includes metallic aluminium drainer 9 and AlCl3Drainer 10, the metallic aluminium condensation
Tank is connected with the gas outlet of the reative cell and is arranged in above the reative cell, for the AlCl gases for obtaining reative cell
It is incorporated into the presence of vacuum system in metallic aluminium drainer and carries out disproportionated reaction, generation metallic aluminium and AlCl3, wherein, gold
Category aluminium is condensed into solid-state, AlCl3For gaseous state, meanwhile, the CO gases generated in course of reaction are discharged in the presence of vacuum system；
The AlCl3Drainer is connected with the metallic aluminium drainer, for gaseous state AlCl3Enter AlCl3It is further cold in drainer
It is solidifying, obtain AlCl3Solid.Thus, the present invention improves the yield of metallic aluminium by the way that metallic aluminium is collected respectively with alchlor
And the purity of metallic aluminium.
The invention provides a kind of new device for preparing metallic aluminium, the device includes vacuum system, with the condensed system
System connection, the pressure for reducing whole system is allowed to be in vacuum state so that reaction reacts under vacuum.
According to a particular embodiment of the invention, in the presence of vacuum system, it is cold that the AlCl gases that reative cell is obtained enter condenser system
Isolated product metal aluminium and AlCl3Solid, meanwhile, the CO gases discharge generated in course of reaction.Further, it is described
Vacuum system includes vavuum pump 11.
According to another aspect of the present invention, present invention also offers a kind of a kind of above-mentioned continuous aluminium metallurgy device of utilization
Metallurgy method for aluminum, comprises the following steps：
（1）Set-up procedure：By AlCl3Powder is placed in AlCl3In sublimation tank；Vacuum system is opened, system pressure is reduced；Open combustion
Burning system, introducing combustion air and combustion gas are burnt after being preheated by regenerator into combustion chamber, or introducing combustion air passes through
Burnt after regenerator preheating with the combustion gas being introduced directly into combustion chamber, the high-temperature flue gas heating response room produced of burning.
According to a particular embodiment of the invention, the device includes vacuum system, is connected with the condenser system, for reducing
The pressure of whole system, is allowed to be in vacuum state so that reaction reacts under vacuum.Further, the system
System pressure is reduced for 30Pa or so.In the presence of vacuum system, it is cold that the AlCl gases that reative cell is obtained enter condenser system
Isolated product metal aluminium and AlCl3Solid, meanwhile, the CO gases discharge generated in course of reaction.Further, it is described
Vacuum system includes vavuum pump.
According to a particular embodiment of the invention, the combustion system includes combustion chamber and regenerator, the regenerator and institute
State combustion chamber to be connected, for carrying out that enough thermals source should be provided for the raw material in the reaction system so that combustion air and combustion gas
It is passed through combustion chamber to be burnt, is introduced into after carrying out recovery heat in regenerator and arranges again behind the high-temperature flue gas heating response room of generation
Put.Further, the combustion chamber can be square, cylindrical or other shapes, as long as can be that combustion air and combustion gas are carried out
The high-temperature flue gas that burning is provided place and produced using burning is heated for the reative cell.Thus, the device leads to
Cross using regenerative gas heater, existing electric furnace can be replaced to carry out vacuum carbothermal reduction and prepare metallic aluminium, reduction is anti-
The energy consumption that process is consumed is answered, and then reduces the cost that vacuum carbothermal reduction prepares metallic aluminium, is that industrialized possibility is more entered
One step, realizes and efficiently utilizes burner exhaust heat.
According to a particular embodiment of the invention, the combustion system also includes combustion-supporting wind pipeline, gas pipeline and fume pipe
Road, wherein, the gas access of the regenerator is connected with the combustion-supporting wind pipeline and/or gas pipeline respectively, for storage
Combustion air and/or combustion gas are introduced in hot cell, the pre-heat treatment is carried out in the regenerator for having reclaimed heat smoke heat, accumulation of heat is obtained
High temperature combustion supporting air and/or high-temperature fuel gas after processing；The exhanst gas outlet of the regenerator is connected with the flue, is used for
The low-temperature flue gas obtained in discharge regenerator after recovered heat；The smoke inlet of the regenerator is connected with the combustion chamber,
For by combustion air in combustion chamber and fuel gas buring, obtained high-temperature flue gas after thermal source is provided for reative cell, to send into regenerator
It is interior, heat is stayed on heat storage, complete the flue gas after accumulation of heat and discharge immediately.According to a particular embodiment of the invention, the combustion
Burning system also includes three-way diverter valve.High-temperature flue gas enter regenerator complete accumulation of heat after, three-way diverter valve commutation, low temperature it is combustion-supporting
Wind or combustion gas enter regenerator, absorb the heat on heat storage, and then obtain high temperature combustion supporting air or high-temperature fuel gas.
According to a particular embodiment of the invention, the combustion chamber placement is in the reative cell surrounding, and arrangement annular in shape is used for
The high-temperature flue gas produced after being burnt by combustion gas and combustion air provides the thermal source of carbon-thermal reduction for the reative cell.According to this
Burner is provided with the specific embodiment of invention, the side wall of the combustion chamber in pairs, the burner is connected with the regenerator, is used for
Combustion gas and combustion air or discharge heat smoke are introduced for the combustion chamber so that combustion gas and combustion air are via one in paired burner
Individual burner enter burnt in combustion chamber, behind the high-temperature flue gas heating response room for generation of burning through by another in paired burner
Individual burner enters after regenerator reclaims heat is discharged by flue.Further, the quantity of the burner is one or more pairs of,
Alternately burning, accumulation of heat, preheating, combustion process, it is ensured that continue, stable heating response room；It is preferred that, burner is provided with multipair,
Each pair burner is all correspondingly arranged at the different sections of square combustion chamber, can be precisely controlled the heating of the different sections of the reative cell
Temperature.Thus, the device uses heat storage type combustion mode, and reaction indoor temperature is uniform, can set flexibly control each by nozzle
Duan Wendu, is conducive to the generation of reduction reaction.
According to a particular embodiment of the invention, the combustion system includes A sides combustion system and B sides combustion system, is used for
Thermal source is provided for the reative cell.The specific work process of the combustion system is as follows：Carried out using A sides combustion system burned
Journey, the combustion air of normal temperature and combustion gas are burnt into combustion chamber, and the high-temperature flue gas of generation is heated after the reative cell through the combustion of B sides
The regenerator of burning system is reclaimed and discharged after heat, completes heat-accumulating process；Complete after a combustion period, B sides combustion system is carried out
Combustion process, the combustion air of normal temperature enters to be preheated in regenerator, is preheated while the combustion gas of normal temperature enters in regenerator
Or without regenerator warm, both are burnt into combustion chamber, the high-temperature flue gas of generation heats the reative cell
Reclaim and discharged after heat by the regenerator of A sides combustion system, complete heat-accumulating process；So repeat, alternately burn, store
Heat, exothermic process, it is ensured that lasting, stable heating response room, realize and efficiently utilize burner exhaust heat.Wherein, the combustion air or
Person's combustion gas enter regenerator in preheated after be warming up to more than 900 DEG C, burnt into combustion chamber, generation 1500-1700
DEG C high-temperature flue gas, heat storage room reclaim heat after be cooled to 250 DEG C or so.
According to a particular embodiment of the invention, the combustion system can be using single accumulation of heat or the burning side of Two-cuff Technique
Formula, combustion air can be air, oxygen-enriched air, and combustion gas can be natural gas, coke-stove gas, water-gas, pyrolysis coal gas, petroleum liquid
Change gas etc..Further, when combustion gas is the exotic fuels such as natural gas, pyrolysis gas, oil liquefied gas, using single heat-accumulation combustion side
Formula, i.e. combustion air pass through regenerator, and combustion gas is without regenerator；When combustion gas is the low-heat value gas such as coke-stove gas, water-gas, then
Both regenerator, combustion gas can have been passed through using single heat-accumulation combustion mode, i.e. combustion air without regenerator, again can be using Two-cuff Technique burning
Mode, i.e. combustion air participate in burning with combustion gas after regenerator.When the combustion system is double heat storage type combustion system,
Combustion air is warming up to more than 900 DEG C after being preheated respectively by regenerator with combustion gas, is burnt into combustion chamber, meanwhile,
Burning produces 1500-1700 DEG C or so of high-temperature flue gas heating response room so that reaction indoor temperature reaches 1200-1500 DEG C,
Discharged after reclaiming heat through regenerator again, realize and efficiently utilize burner exhaust heat；When the combustion system is burnt for single heat storage type
During system, combustion air is warming up to more than 900 DEG C after being preheated by regenerator, and the normal temperature combustion gas with not the pre-heat treatment, which enters, fires
Room is burnt to be burnt, meanwhile, burning produces 1500-1700 DEG C or so of high-temperature flue gas heating response room so that reaction Indoor Temperature
Degree reaches 1200-1500 DEG C, then is discharged after regenerator recovery heat, realizes and efficiently utilizes burner exhaust heat.
（2）Preparation process：After the completion of reative cell heating, raw material is added in reative cell by spiral propeller, with spiral shell
Rotation propeller is constantly pushed ahead, and is fully carried out carbon-thermal reduction, is obtained intermediate product；Heat AlCl3Sublimation tank is carried out at gasification
Reason, obtains gaseous state AlCl3, the gaseous state AlCl3Further occur chlorination reaction with the intermediate product into reative cell to obtain
AlCl gases；In the presence of vacuum system, the AlCl gases are condensed into condenser system, obtain metallic aluminium and
AlCl3Solid.
The invention provides a kind of continuous aluminium metallurgy device, the reaction system includes reative cell and AlCl3Sublimation tank, it is described
Reative cell and the AlCl3Sublimation tank is connected, for by the AlCl3The gaseous state AlCl that gasification process is obtained is carried out in sublimation tank3
It is passed into the reative cell, the gaseous state AlCl3The intermediate product that carbon-thermal reduction is obtained is carried out with the reative cell（Such as Al4C3、
Al4O4The intermediate products such as C）Further chlorination reaction is carried out, AlCl gases are obtained.Further, the reative cell and described
AlCl3Connected between sublimation tank using pipeline so that the AlCl3Gaseous state AlCl in sublimation tank3Entered via the pipeline
In the reative cell.
According to a particular embodiment of the invention, step（2）In the raw material be aluminum oxide or salic bauxite
The ball material that compacting balling-up is obtained is carried out Deng with carbonaceous reducing agent, wherein, the quality of aluminum oxide and carbonaceous reducing agent in the raw material
Ratio is 1:3-5, the carbonaceous reducing agent is the fixed carbon content ＞ 50% such as graphite, coal, semi-coke, biomass carbon carbon raw material.
The reative cell is spiral propeller form, including spiral propeller and shell, the shell are complete by the spiral propeller
Cladding, the combustion chamber is around the periphery for being arranged in the shell, it is ensured that the reative cell is relatively independent with the combustion chamber
System；Thereby it is ensured that the combustion chamber is only the reative cell provide needed for thermal source, will not introduce miscellaneous for reative cell
Matter, so that harmful effect will not be produced to the purity of metallic aluminium.According to a particular embodiment of the invention, set outside the reative cell
There are motor, feed system, raw material warehouse and intermediate bin；Wherein, the feed system, for by aluminum oxide or salic aluminium
Tu Kuang carries out compacting balling-up processing with carbonaceous reducing agent and obtains ball material；The feed system successively with raw material warehouse, intermediate bin, lock
Bucket valve is connected with the charging aperture of the reative cell, for the feedstock transportation of ball material as reative cell to be carried out into the reative cell
Reaction；The motor is connected with the spiral propeller, for driving the spiral propeller with certain rotational speed, it is ensured that former
Material is continuously pushed ahead with the spiral propeller, thus, and the device uses spiral propeller form, the company of realizing
Continuous input and output material, reduces manipulation strength, is more beneficial for industrialized implementation.Further, inertia is used in the raw material warehouse
Gas（Such as N2）The air entered in raw material warehouse described in line replacement, it is ensured that oxygen content ＜ 0.1% in the raw material warehouse；It is described
It is logical in the reative cell that lock hopper valve can control the ball material of intermediate bin to be transported to respectively by the closure or openness of its own
Enter or disconnect, hereby it is achieved that control being passed through or off-state for reative cell base feed.It is preferred that, the AlCl3Distillation
Pipeline connection between tank and the charging aperture and the lock hopper valve of the reative cell, for by the AlCl3Gas in sublimation tank
State AlCl3The reative cell is passed into via the pipeline so that the gaseous state AlCl3Carbon-thermal reduction is carried out with the reative cell
Obtained intermediate product carries out further chlorination reaction, obtains AlCl gases.The charging process of the raw material is：Balling-up will be suppressed
Obtained ball material is sent into raw material warehouse by feed system as raw material, uses N2Enter in raw material warehouse described in line replacement
Air, it is ensured that oxygen content ＜ 0.1% in the raw material warehouse, the raw material passes sequentially through the raw material warehouse, the centre
Storehouse, the lock hopper valve are entered in the reative cell.
According to a particular embodiment of the invention, course of reaction of the raw material in reaction system is：Raw material adds reaction
In room, during rising to 1200-1500 DEG C by the high-temperature flue gas heating-up temperature carbon-thermal reduction occurs for the reative cell, obtain as
Al4C3、Al4O4The intermediate products such as C；Then, AlCl is heated3Sublimation tank is allowed to carry out gasification process to obtain gaseous state to 80-250 DEG C
AlCl3；The spiral propeller extends transversely through whole reative cell, the intermediate product immediately with the gaseous state AlCl3Together with
Spiral propeller is constantly pushed ahead, meanwhile, the intermediate product and the gaseous state AlCl3Further occur chlorination reaction to obtain
AlCl gases and residue.It is preferred that, the reaction run time of raw material is 45-120min in the reative cell.The reaction system
In the process that is continued with of obtained product be：The obtained AlCl gases discharge reaction in the presence of vavuum pump
Room, carries out refrigerated separation into condenser system and obtains product metal aluminium and AlCl3Solid, moreover, the CO generated in course of reaction
Gas enters condenser system in the presence of vavuum pump together with AlCl gases；Remaining residue is reacted as spiral propeller is transported
Move to slag notch discharge.Further, the condenser system includes metallic aluminium drainer and AlCl3Drainer, its concrete operations
Process is：The temperature control of the metallic aluminium drainer is at 200-400 DEG C or so so that the AlCl gases that the reative cell is obtained
Generation disproportionated reaction generates metallic aluminium and AlCl3, wherein, metallic aluminium is condensed into solid-state, AlCl3For gaseous state；The gaseous state AlCl3
Into AlCl3Condensation process is further carried out in drainer, AlCl is obtained3Solid.It is preferred that, during the course of the reaction, it can adjust
Revolve the velocity of rotation and AlCl of propeller3Gasification rate, to ensure that material reacts complete before reaching discharging opening.Thus,
Realize alchlor and contact more abundant with raw material, carbon-thermal reduction is present in reactor simultaneously with chlorination reaction, to a certain degree
On limit the generation of side reaction, improve reduction efficiency.
Inventor has found, the invention provides a kind of continuous aluminium metallurgy device, by using regenerative gas heater energy
Enough replace existing electric furnace and prepare metallic aluminium, the energy consumption that reduction course of reaction is consumed to carry out vacuum carbothermal reduction, and then reduce
Vacuum carbothermal reduction prepares the cost of metallic aluminium, be industrialized possibility further；By using spiral propeller form,
Continuous feeding and discharging is realized, manipulation strength is reduced, industrialized implementation is more beneficial for；By using heat storage type combustion mode,
React indoor temperature uniform, can be set by nozzle and flexibly control each section of temperature, be conducive to the generation of reduction reaction；By by carbon
Thermal response is present in reactor simultaneously with chlorination reaction, and alchlor contacts more abundant with raw material, limits to a certain extent
The generation of side reaction, improves reduction efficiency；By the way that metallic aluminium is collected respectively with alchlor, the yield of metallic aluminium is improved
And the purity of metallic aluminium.
Embodiment one
Aluminum oxide and graphite are crushed to 200 mesh, by 1:3 proportional arrangement, after being well mixed, the compacting balling-up of 2MPa pressure is led to
Cross in feed system feeding raw material warehouse, use N2Enter line replacement, it is ensured that oxygen content ＜ 0.1% in warehouse.It will be about aluminum oxide
The AlCl of 2 times of weight3Powder is placed in AlCl3In sublimation tank.Then vavuum pump is opened, system pressure is reduced, when pressure is reduced to
During 30Pa or so, come into operation combustion system, starts to warm up.
First, using A sides combustion system, combustion air and the coke-stove gas of normal temperature are fired by burner into combustion chamber
Burn, behind the high-temperature flue gas heating response room produced of burning, after the regenerator through B sides combustion system reclaims heat, temperature is reduced to
250 DEG C or so, discharge out of the furnace.After 180s commutations, combustion air and regenerator of the coke-stove gas after the accumulation of heat of B sides of normal temperature,
It is preheated to after more than 900 DEG C, is burnt by burner into combustion chamber, the high-temperature flue gas heating response room produced of burning
Afterwards, the regenerator through A sides combustion system reclaims heat.So alternately, until the temperature in reative cell is warming up into 1200 ~
1300 DEG C, and this temperature about 50min is maintained, the material in reative cell is fully reacted.
Then, the lock hopper valve under intermediate bin is opened, raw material is sent into spiral propeller reative cell, raw material is heated temperature
1200 ~ 1300 DEG C are increased to, occurs carbon-thermal reduction.Later, AlCl is heated3Sublimation tank is to 200 DEG C or so, and it is AlCl to be allowed to gasification3
Gas, the AlCl of gained3Gas is entered in reative cell by the pipeline being connected with reative cell, is generated with raw material carbon-thermal reduction
Al4C3、Al4O4Chlorination reaction occurs for the intermediate products such as C, obtains product AlCl gases, the gas enters in the presence of vavuum pump
Enter metallic aluminium drainer, control its interior temperature at 250 DEG C or so, disproportionated reaction generation metallic aluminium and AlCl occur for AlCl gases3,
Metallic aluminium is condensed into solid-state, AlCl3For gaseous state, into the AlCl being attached thereto3Further condensation obtains AlCl in drainer3Gu
Body.React obtained metallic aluminium purity ＞ 94%, direct yield ＞ 85%.
Embodiment two
Aluminum oxide and coal are crushed to 200 mesh, by 1:4 proportional arrangement, after being well mixed, the compacting balling-up of 2MPa pressure passes through
In feed system feeding raw material warehouse, N is used2Enter line replacement, it is ensured that oxygen content ＜ 0.1% in warehouse.It will be about aluminum oxide 2
The AlCl of times weight3Powder is placed in AlCl3In sublimation tank.Then vavuum pump is opened, system pressure is reduced, when pressure is reduced to
During 30Pa or so, come into operation combustion system, starts to warm up.
First, using A sides combustion system, combustion air and the natural gas of normal temperature are burnt by burner into combustion chamber,
Burn behind the high-temperature flue gas heating response room produced, after the regenerator through B sides combustion system reclaims heat, temperature is reduced to 250
DEG C or so, discharge out of the furnace.After 180s commutations, the regenerator of the combustion air of normal temperature after the accumulation of heat of B sides is preheated to 900 DEG C
After above, burnt with normal-temperature natural-gas by burner into combustion chamber, behind the high-temperature flue gas heating response room produced of burning,
Regenerator through A sides combustion system reclaims heat.So alternately, until the temperature in reative cell is warming up into 1200 ~
1300 DEG C, and this temperature about 50min is maintained, the material in reative cell is fully reacted.
Then, the lock hopper valve under raw material warehouse is opened, raw material is sent into spiral propeller reative cell, raw material is heated temperature
Degree is increased to 1200 ~ 1300 DEG C, occurs carbon-thermal reduction.Later, AlCl is heated3Sublimation tank is to 200 DEG C or so, and being allowed to gasification is
AlCl3Gas, the AlCl of gained3Gas is entered in reative cell by the pipeline being connected with reative cell, is generated with raw material carbon-thermal reduction
Al4C3、Al4O4The intermediate products such as C occur chlorination reaction, obtain product AlCl gases, the gas in the presence of vavuum pump,
Into metallic aluminium drainer, control its interior temperature at 250 DEG C or so, AlCl gases occur disproportionated reaction generation metallic aluminium and
AlCl3, metallic aluminium is condensed into solid-state, AlCl3For gaseous state, into the AlCl being attached thereto3Further condensation is obtained in drainer
AlCl3Solid.React obtained metallic aluminium purity ＞ 90%, direct yield ＞ 81%.
The present invention is described in detail above, used herein principle and embodiment of the embodiment to the application
It is set forth, the explanation of above example is only intended to help and understands the present processes and its core concept；Simultaneously for
Those of ordinary skill in the art, according to the thought of the application, have change in specific embodiments and applications
Place, in summary, this specification content should not be construed as the limitation to the application.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of continuous aluminium metallurgy device, it is characterised in that including combustion system, reaction system, condenser system and vacuum system, its
In,
The combustion system includes combustion chamber and regenerator, and is connected with the reaction system, and heat is provided for reaction；
The reaction system includes reative cell and AlCl3Sublimation tank, the reative cell includes spiral propeller and shell, described outer
Shell coats the spiral propeller completely, is internally formed reaction compartment, and the reative cell is the reaction of spiral propeller form
Device, is reacted for continuously providing raw material, is surround around the reative cell and is disposed with the combustion chamber；The AlCl3Rise
Magnificent tank is connected with the reative cell, its gaseous state AlCl generated3Occurs chlorination reaction into the reative cell；
The condenser system connects with the reaction system, and the product of the reaction system reaction generation is cooled down into condenser system
Afterwards, metallic aluminium is obtained；
The vacuum system connects with the condenser system, for making the reaction system and condenser system be in vacuum state,
Reaction occurs under vacuum.
2. a kind of continuous aluminium metallurgy device as claimed in claim 1, it is characterised in that the combustion system is heat storage type combustion system
System, using single accumulation of heat or the combustion system of Two-cuff Technique；The regenerator is connected with the combustion chamber.
3. a kind of continuous aluminium metallurgy device as claimed in claim 1, it is characterised in that motor, institute are provided with outside the reative cell
State motor to be connected with the spiral propeller, for driving the spiral propeller to rotate, make raw material with the screw propulsion
Device is continuously pushed ahead.
4. a kind of continuous aluminium metallurgy device as claimed in claim 1, it is characterised in that the combustion system also includes combustion-supporting airduct
Road, gas pipeline and flue, the gas access of the regenerator respectively with the combustion-supporting wind pipeline and/or gas pipeline
Connection, the exhanst gas outlet of the regenerator is connected with the flue, the smoke inlet of the regenerator and the combustion chamber
Connection.
5. a kind of continuous aluminium metallurgy device as claimed in claim 4, it is characterised in that what is be passed through in the combustion-supporting wind pipeline is combustion-supporting
Wind is air or oxygen-enriched air, and the combustion gas that gas pipeline is passed through is natural gas, coke-stove gas, water-gas, pyrolysis coal gas or oil
Liquefied gas.
6. a kind of continuous aluminium metallurgy device as claimed in claim 4, it is characterised in that the combustion system also includes gas tee
Reversal valve and/or combustion air three-way diverter valve, wherein, the gas tee reversal valve respectively with gas pipeline, flue and
Regenerator is connected, and the combustion air three-way diverter valve is connected with combustion-supporting wind pipeline, flue and regenerator respectively.
7. a kind of continuous aluminium metallurgy device as claimed in claim 1, it is characterised in that the combustion chamber placement is one or more pairs of to burn
Mouth, is connected with the regenerator.
8. a kind of continuous aluminium metallurgy device as claimed in claim 1, it is characterised in that the condenser system is condensed including metallic aluminium
Tank and AlCl3Drainer, for reaction product metallic aluminium to be collected respectively with alchlor, wherein, the metallic aluminium is cold
Solidifying tank is connected with the gas outlet of the reative cell and is arranged in above the reative cell, the AlCl3Drainer respectively with it is described
Metallic aluminium drainer and vacuum system connection.
9. a kind of a kind of metallurgy method for aluminum of continuous aluminium metallurgy device any one of utilization claim 1-8, it is characterised in that
Comprise the following steps：
（1）Set-up procedure：By AlCl3Powder is placed in AlCl3In sublimation tank；Vacuum system is opened, system pressure is reduced；Open combustion
Burning system, introducing combustion air and combustion gas are burnt after being preheated by regenerator into combustion chamber, or introducing combustion air passes through
Burnt after regenerator preheating with the combustion gas being introduced directly into combustion chamber, the high-temperature flue gas heating response room produced of burning；
（2）Preparation process：After the completion of reative cell heating, raw material is added in reative cell by spiral propeller, as spiral is pushed away
Enter device constantly to push ahead, fully carry out carbon-thermal reduction, obtain intermediate product；Heat AlCl3Sublimation tank carries out gasification process, obtains
To gaseous state AlCl3, the gaseous state AlCl3Further occur chlorination reaction with the intermediate product into reative cell and obtain AlCl
Gas；In the presence of vacuum system, the AlCl gases are condensed into condenser system, obtain metallic aluminium and AlCl3Gu
Body.
10. metallurgy method for aluminum as claimed in claim 9, it is characterised in that step（1）In the system pressure be reduced for
30Pa or so；The combustion system is regenerative combustion system, including A sides combustion system and B sides combustion system, its concrete operations
Process is：Combustion process is carried out using A sides combustion system, the combustion air of normal temperature and combustion gas are burnt into combustion chamber, produced
High-temperature flue gas heat after the regenerator through B sides combustion system reclaims heat after the reative cell and discharge, complete heat-accumulating process；It is complete
Into after a combustion period, B sides combustion system carries out combustion process, and the combustion air of normal temperature enters to be preheated in regenerator, together
Shi Changwen combustion gas enters to be preheated or without regenerator warm, both are fired into combustion chamber in regenerator
Burn, the high-temperature flue gas of generation, which is heated after the regenerator through A sides combustion system reclaims heat after the reative cell, discharges, and completes accumulation of heat
Process；Such repetition, alternately burning, accumulation of heat, exothermic process, it is ensured that lasting, stable heating response room, realize efficient profit
Use burner exhaust heat；Wherein, the combustion air or combustion gas enter preheated in regenerator after be warming up to more than 900 DEG C, enter
Combustion chamber is burnt, the high-temperature flue gas of 1500-1700 DEG C of generation, is reclaimed behind heating response room, again via regenerator after heat
It is cooled to 250 DEG C or so；
Step（2）In the raw material carry out suppressing balling-up for aluminum oxide or salic bauxite and carbonaceous reducing agent and obtain
Ball material, wherein, in the raw material mass ratio of aluminum oxide and carbonaceous reducing agent be 1:3-5, the carbonaceous reducing agent is solid
Determine carbon content ＞ 50% carbon raw material；The charging process of the raw material is：The ball material that compacting balling-up is obtained leads to as raw material
Cross in feed system feeding raw material warehouse, the air entered using nitrogen in raw material warehouse described in line replacement, it is ensured that the raw material storage
Oxygen content ＜ 0.1% in storehouse, the raw material is entered in the reative cell via intermediate bin；The reative cell is by the high temperature
During rising to 1200-1500 DEG C carbon-thermal reduction occurs for flue gas temperature；The AlCl3Sublimation tank carries out the temperature of gasification process
Spend for 80-250 DEG C；The reaction run time of raw material is 45-120min in the reative cell；The condenser system concrete operations
Cheng Wei：The temperature control of the metallic aluminium drainer is at 200-400 DEG C or so so that the AlCl gases hair that the reative cell is obtained
Raw disproportionated reaction generation metallic aluminium and AlCl3, wherein, metallic aluminium is condensed into solid-state, AlCl3For gaseous state；The gaseous state AlCl3Enter
Enter AlCl3Condensation process is further carried out in drainer, AlCl is obtained3Solid.
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| CN201710480594.4A CN107287423A (en) | 2017-06-22 | 2017-06-22 | A kind of continuous aluminium metallurgy device |
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| CN201710480594.4A CN107287423A (en) | 2017-06-22 | 2017-06-22 | A kind of continuous aluminium metallurgy device |
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| CN201710480594.4A Pending CN107287423A (en) | 2017-06-22 | 2017-06-22 | A kind of continuous aluminium metallurgy device |
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| CN109518004A (en) * | 2018-11-26 | 2019-03-26 | 昆明理工大学 | A kind of method that carbon thermal reduction prepares metallic aluminium |
| CN110665449A (en) * | 2019-09-26 | 2020-01-10 | 保定加合精细化工有限公司 | Equipment for continuously producing ethylene sulfide |
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| CN110665449A (en) * | 2019-09-26 | 2020-01-10 | 保定加合精细化工有限公司 | Equipment for continuously producing ethylene sulfide |
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