CN207793385U - A kind of production system of titanium sponge - Google Patents
A kind of production system of titanium sponge Download PDFInfo
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- CN207793385U CN207793385U CN201721880959.4U CN201721880959U CN207793385U CN 207793385 U CN207793385 U CN 207793385U CN 201721880959 U CN201721880959 U CN 201721880959U CN 207793385 U CN207793385 U CN 207793385U
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Abstract
The utility model is related to a kind of production systems of titanium sponge, include mainly：Titanium tetrachloride preparation system, magnesium metal preparation system and titanium sponge preparation system, the titanium tetrachloride preparation system include：The first pretreatment system for being sequentially connected goes back original system, chlorination system and refining plant；The magnesium metal preparation system includes：Connected preparation system and refining system；The titanium sponge preparation system includes：Reduction reaction system and distillation refining system obtain thick titanium and magnesium chloride by the smart magnesium gasification to carry out reduction reaction with the refined titanic chloride steam after smart magnesium steam；The distillation refining system is connected with the reduction reaction system, and the thick titanium is evaporated in vacuo, prepared sponge titanium is obtained.Using regenerative gas mode of heating, by the catalytic mode of raw material gaseous state, solve magnesium reduction process prepare titanium sponge time-consuming, interruption production, the problems such as efficiency is low, effectively reduce titanium sponge production cost, reduce labor intensity.
Description
Technical field
The utility model is related to metallurgical technology field, it is related to a kind of production system of titanium sponge more particularly to a kind of use
Regenerative gas mode of heating prepares the production system of titanium sponge.
Background technology
China has abundant titanium resource, reserves to occupy first of the world.Currently, China's titanium resource is mainly used to produce titanium dioxide,
Utilization rate only 30% or so.Titanium and titanium alloy have many advantages, such as that density is small, specific strength is high, excellent corrosion resistance and nontoxic, extensively
It is general to be applied to the industry such as aerospace, chemical industry, metallurgy, light industry, ship, automobile, medicine, building.With metal titanium or titanium alloy
The efficient utilization of the increase of potential demand, titanium resource is more and more important.
Currently, the commercial run of Titanium production is Kroll methods, and in production process, titaniferous ore（Rutile, high titanium slag
Deng）Pass through chlorination（Shaft chlorination, fused salt chlorimation, fluidizing chlorination etc.）Mode converts to obtain TiCl4, reusing magnesium reduction process will
TiCl4It is converted into elemental form, the magnesium chloride generated in reaction process is then detached by the method for vacuum distillation, obtains sponge
Titanium products；Magnesium chloride obtains magnesium metal return magnesiothermic reduction process through electrolysis and recycles；Kroll methods prepare titanium sponge technique category
In batch production, fail the serialization for realizing production, time-consuming for production, and overall process is from TiO2Chlorination start to production to go to sea
Continuous titanium needs 17d, and the production cost is very high.
Utility model content
The utility model is in view of the deficiencies of the prior art, it is proposed that a kind of production system of titanium sponge is fired using heat accumulating type
Gas mode of heating solves magnesium reduction process and prepares titanium sponge time-consuming, medium well by the catalytic mode of raw material gaseous state
Production, the problems such as efficiency is low, titanium sponge production cost is effectively reduced, labor intensity is reduced.
It is at least to solve one of above-mentioned technical problem, the technical solution that the utility model is taken is：
The utility model proposes a kind of production systems of titanium sponge, including：It is prepared by titanium tetrachloride preparation system, magnesium metal
System and titanium sponge preparation system, wherein
The titanium tetrachloride preparation system includes：The first pretreatment system for being sequentially connected, go back original system, chlorination system and
Ilmenite is pre-processed, is restored, chlorination and refined, obtaining refined titanic chloride steam by refining plant successively；
The magnesium metal preparation system includes：Connected preparation system and refining system will contain magnesia mine through the system
Standby system is handled, refined through the refining system after obtaining crude magnesium, obtains smart magnesium；
The titanium sponge preparation system includes：Reduction reaction system and distillation refining system, wherein the reduction reaction system
System is connected with the refining plant and refining system respectively, by the smart magnesium gasification for after essence magnesium steam with the refined titanic chloride
Steam carries out reduction reaction, obtains thick titanium and magnesium chloride；The distillation refining system is connected with the reduction reaction system, by institute
It states thick titanium to be evaporated in vacuo, obtains prepared sponge titanium.
Further, first pretreatment system obtains acid pellet for handling ilmenite；The chlorination
System is used to, by the Ti-enriched slag chlorination, obtain crude titanic chloride；The refining plant is used to refine the crude titanic chloride,
Obtain refined titanic chloride steam.
Further, the original system of going back includes：Gas-based shaft kiln, breaker and the concentration equipment being sequentially connected, by institute
It states after acid pellet is reduced to sponge iron pelletizing, through broken and magnetic separation, obtains sponge iron and Ti-enriched slag.
Further, the preparation system includes：Connected the second pretreatment system and the first reaction system contains by described in
Magnesia/magnesium chloride mine is passed through first reaction system after pretreatment, obtains crude magnesium；First reaction system with it is described
Refining system is connected, and the crude magnesium is passed through the refining system.
Further, first reaction system is silicothermic reduction magnesium reaction system or electrolysis magnesium reaction system processed.
Further, the reduction reaction system includes：Second reaction system, combustion system and vacuum system, wherein institute
Stating the second reaction system includes：Reative cell, magnesium metal heating tank, cyclone separator, cooling tank and air-introduced machine, wherein described
The multiple nozzles of ring cloth on the lower sides of reative cell are equipped with distributor in the bottom of the reative cell, and the distributor is equipped with more
A air admission hole, the nozzle are connected with the refining plant, the magnesium metal heating tank respectively with the refining system and described
Air admission hole is connected, and the refined titanic chloride steam and smart magnesium steam are provided into the reative cell；The cyclone separator enters
Mouth is connected with the top exit of the reative cell, and the outlet at bottom of the cyclone separator passes through down-comer and the reative cell
Side wall entrance is connected, and the entrance of the cooling tank is connected with the top exit of the cyclone separator, the tetrachloro of the cooling tank
Change titanium outlet with the refining plant to be connected；The entrance of the air-introduced machine is connected with the argon gas export of the cooling tank, described to draw
The outlet of wind turbine is connected with the magnesium metal heating tank, using argon gas as the carrier gas of smart magnesium steam.
Further, the combustion system includes：Radiant tube, regenerative chamber, reversal valve, combustion-supporting wind pipeline, gas pipeline and
Flue, wherein multiple radiant tubes are set in the reative cell, and two side outlets of the radiant tube extend to institute
The outside for stating reative cell is connected with the regenerative chamber respectively, and the reversal valve is connected with the regenerative chamber, the reversal valve and institute
It states combustion-supporting wind pipeline to be connected to flue switching, the gas pipeline and the regenerative chamber or the burner of the radiant tube
It is connected.
Further, the entrance of the distillation refining system is connected with the outlet at bottom of the reative cell, the distillation essence
The magnesium metal outlet of system processed is connected with the magnesium metal heating tank, and the distillation refining system further includes：Titanium sponge export and
Magnesium chloride exports；The entrance of the vacuum system is connected with the distillation refining system, for obtaining the distillation refining system
Vacuum environment.
Further, further include：Electrolysis of magnesium chloride system, entrance respectively with the outlet at bottom of the reative cell and described
The magnesium chloride outlet for distilling refining system is connected, and a part of magnesium chloride and the reative cell that the reative cell is discharged are discharged another
A part of magnesium chloride is sent into electrolysis of magnesium chloride system after distillation refining system vacuum distillation is separated and is electrolysed；
The outlet of the electrolysis of magnesium chloride system respectively with the refining system and the chlorination system or electrolysis magnesium reaction system processed
System is connected, and the magnesium metal that electrolysis generates is passed through the refining system, the chlorine for being electrolysed generation is passed through the chlorination system or institute
State electrolysis magnesium reaction system.
The beneficial effects of the utility model include at least：
1）The utility model solves magnesium reduction process and prepares titanium sponge and take by the catalytic mode of raw material gaseous state
Long, interruption production, the problems such as efficiency is low, titanium sponge production cost is effectively reduced, labor intensity is reduced；
2）The utility model using regenerative gas mode of heating handle ilmenite, high efficiency extraction iron therein, titanium, and with
Magnesium metal occurs reduction reaction and obtains simple substance titanium, and in reaction process, the chlorine in electrolysis, chlorination process recycles；
3）The utility model uses regenerative combustion technology, and by burning, obtained high-temperature flue gas heats reative cell, effectively,
While uniformly improving reaction indoor temperature, ensure to be inert atmosphere in reative cell；Meanwhile controllable flue-gas temperature is come to reaction
Indoor temperature is adjusted flexibly, and ensures reaction zone temperature in the temperature region occurred most beneficial for reaction；
4）The utility model improves the temperature of reative cell using heat accumulation type radiant tube, and the high-temperature flue gas come out in radiant tube can
For dried material or he use；
5）The utility model can replace existing electric furnace and prepare Titanium to carry out magnesiothermy, reduce reaction process and consumed
Energy consumption, and then reduce vacuum reduction and prepare the cost of Titanium.
Description of the drawings
Fig. 1 is the utility model production system flow chart.
Fig. 2 is the utility model titanium sponge preparation system flow chart.
Fig. 3 is the utility model nozzle arrangements schematic diagram.
Fig. 4 is the utility model structure of distributor schematic diagram.
Fig. 5 is the double heat storage type burning structure schematic diagram of the utility model combustion system.
Wherein, reative cell 1；Nozzle 101；Distributor 102；Air admission hole 1021；Regenerative chamber 2；Reversal valve 3；Combustion-supporting wind pipeline
4；Gas pipeline 5；Flue 6；Radiant tube 7.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with specific implementation
The utility model is described in further detail for example.The embodiments described below is exemplary, and is only used for explaining this practicality
It is novel, and should not be understood as limiting the present invention.Particular technique or condition are not specified in embodiment, according to this field
Technology or condition described in interior document are carried out according to product description.
Embodiment according to the present utility model, Fig. 1 is the utility model production system flow chart, shown referring to Fig.1, this reality
Production system with the novel titanium sponge includes：Titanium tetrachloride preparation system, magnesium metal preparation system and titanium sponge prepare system
System.Raw material ilmenite is sent into the titanium tetrachloride preparation system, by the processes such as reduction, chlorination, refined, essence four is prepared
Titanium chloride steam；Raw material dolomite, magnesite etc. are sent into the magnesium metal preparation system containing magnesia/magnesium chloride mine, prepared
Obtain the pure magnesium of content ＞ 99.99%；The refined titanic chloride and magnesium metal that above system is prepared enter as a vapor
In the titanium sponge preparation system, magnesiothermic reduction reaction is carried out, titanium sponge is obtained；More specifically, as described below.
Embodiment according to the present utility model, shown referring to Fig.1, titanium tetrachloride preparation system packet described in the utility model
It includes：First pretreatment system goes back original system, chlorination system and refining plant, wherein first pretreatment system is used for titanium
It is to meet the acid pellet of gas-based shaft kiln requirement that iron ore raw material, which carries out processing,；The original system of going back includes：The gas base being sequentially connected
Shaft furnace, breaker and concentration equipment, wherein the gas-based shaft kiln is connected with first pretreatment system, by the oxidation
After pelletizing is reduced to sponge iron pelletizing, through broken and magnetic separation process, sponge iron and Ti-enriched slag are obtained；The chlorination system with it is described
Concentration equipment is connected, and by the Ti-enriched slag chlorination under the action of chlorine, generates crude titanic chloride；The refining plant with it is described
Chlorination system is connected, and the crude titanic chloride is refined, refined titanic chloride steam is obtained, and is used for the preparation of titanium sponge.
Some embodiments according to the present utility model, the first pretreatment system described in the utility model include it is dry, broken,
Ilmenite, is prepared into the oxidation ball for meeting gas-based shaft kiln requirement by the processes such as pelletizing and oxidation by first pretreatment system
Group.
Embodiment according to the present utility model, shown referring to Fig.1, magnesium metal preparation system described in the utility model includes：
Preparation system and refining system, wherein the preparation system includes：Second pretreatment system and the first reaction system, described
One reaction system is connected with second pretreatment system, by it is described be passed through after pretreatment containing magnesia/magnesium chloride mine it is described
First reaction system, obtains crude magnesium；First reaction system is connected with the refining system, and the crude magnesium is passed through the essence
System processed.
More specifically, the raw material dolomite, magnesite etc. are applicable in respectively after second pretreatment system
In the material of ferrosilicon process or electrolysis, the material obtains crude magnesium into first reaction system, and the crude magnesium is by refined
Smart magnesium is obtained after system is refined, is used for the preparation of titanium sponge.
It is understood that the first reaction system described in the utility model is silicothermic reduction magnesium reaction system（It is suitable for
Ferrosilicon process）Or electrolysis magnesium reaction system processed（Suitable for electrolysis）.
Some embodiments according to the present utility model, it is shown referring to Fig.1, it is according to magnesium-smelting silicothermic process, then described to contain MgO/
MgCl2Mine raw material（Such as：Dolomite etc.）Include broken, ball milling, dispensing by second pretreatment system（Such as ferrosilicon, fluorite
Powder）Etc. processes processing after, into being reacted in silicothermic reduction stove, obtain crude magnesium；It is according to electrolytic method magnesium smelting, then described to contain
MgO/ MgCl2Mine raw material（Such as：Dolomite and magnesite etc.）Through second pretreatment system include with carbon, crushing, batch mixing,
The processes such as pelletizing, chlorination（Containing MgO）Or dehydration procedure（Containing MgCl2·xH2O）, material MgCl needed for electrolysis is made2, with laggard
Enter and pass through cell reaction in electrolytic cell, generate crude magnesium and chlorine, wherein the chlorine can be incorporated to chlorine pipe network, for above-mentioned
Magnesium metal preparation system（More specifically, it is used in the chloride process of the second pretreatment system of the electrolytic method magnesium smelting）Or institute
State titanium tetrachloride preparation system（More specifically, it is used in the chloride process of the chlorination system）, it reuses, reduces cost,
Chlorine consumption and discharge are reduced, environmental protection pressure is reduced.
Some embodiments according to the present utility model, the refining system use solvent remelt process, the refining system system
The purity ＞ 99.9% of the magnesium obtained.
Embodiment according to the present utility model, shown referring to Fig.1, titanium sponge preparation system described in the utility model includes：
Reduction reaction system and distillation refining system, wherein the reduction reaction system respectively with the refining plant and refining system
It is connected, the distillation refining system is connected with the reduction reaction system.
More specifically, Fig. 2 is the utility model titanium sponge preparation system flow chart, and Fig. 3 is the utility model nozzle arrangements
Schematic diagram, Fig. 4 are the utility model structure of distributor schematic diagram, and referring to Fig.1 shown in -4, the reduction reaction system includes：The
Two reaction systems, combustion system and vacuum system, wherein second reaction system includes：Reative cell, magnesium metal heating tank,
Cyclone separator, cooling tank and air-introduced machine, wherein the multiple nozzles of ring cloth on the lower sides of the reative cell, described anti-
The bottom of room is answered to be equipped with distributor, the distributor is equipped with multiple air admission holes, and the nozzle is connected with the refining plant, to institute
State and the refined titanic chloride steam be provided in reative cell, the magnesium metal heating tank respectively with the refining system and the air inlet
Hole is connected, and smart magnesium is obtained after refining system is refined and is sent into the magnesium metal heating tank heating, obtains smart magnesium steam, then through institute
It states air admission hole and is sent into the reative cell and reacted with refined titanic chloride steam progress magnesiothermic reduction.
It is understood that the titanium tetrachloride that refining plant described in the utility model is refining to obtain is without cooling, Ke Yizhi
It connects to enter in the form of a vapor and participates in reaction in reative cell；The smart magnesium that above-mentioned refining system obtains can be sent by vacuum ladle
In the magnesium metal heating tank, 1100 DEG C or so are heated to, it is mixed with heated obtained smart magnesium vapor using argon gas as carrier gas
After closing uniformly, enters participate in reaction in reative cell together, obtain thick titanium and magnesium chloride product.
The utility model uses fluidised reactive mode, refined titanic chloride and smart magnesium is entered as a vapor anti-
It answers in room, is reacted after being contacted in a manner of " gas-gas " or " solution-air drop " in the reaction chamber, effectively increase reaction efficiency；
Reaction center is disperseed simultaneously, has avoided reaction very exothermic and cause localized hyperthermia, has caused sintering to generate titanium and stick together, reduce titanium sponge
Quality the problems such as.
Some embodiments according to the present utility model, nozzle described in the utility model are preferably atomizer；The distribution
Device is in porous arrangement, and the refined titanic chloride steam and smart magnesium steam are respectively by described in the atomizer and distributor entrance
In reative cell, accelerate reaction speed.
Some embodiments according to the present utility model, the concrete shape of the air admission hole of the distributor is unrestricted, can be with
For round, rectangular or taper, smart magnesium steam is made to be uniformly distributed in the reative cell.
Embodiment according to the present utility model, with reference to shown in Fig. 2, the entrance of cyclone separator described in the utility model and institute
The top exit for stating reative cell is connected, and the outlet at bottom of the cyclone separator is entered by the side wall of down-comer and the reative cell
Mouth is connected, and the entrance of the cooling tank is connected with the top exit of the cyclone separator, and the titanium tetrachloride of the cooling tank goes out
Mouth is connected with the refining plant；The entrance of the air-introduced machine is connected with the argon gas export of the cooling tank, the air-introduced machine
Outlet is connected with the magnesium metal heating tank, using argon gas as the carrier gas of smart magnesium steam.
The thick titanium and magnesium chloride product risen with argon gas enters with unreacted titanium tetrachloride vapors and smart magnesium steam
Cyclone separator detaches, and the unreacted titanium tetrachloride vapors and argon gas enter in drainer together, in the drainer,
Titanium tetrachloride vapors are condensed into liquid, are detached with argon gas, and gained titanium tetrachloride vapors are Ke Xunhuanliyong with argon gas, more specifically
, titanium tetrachloride vapors, which are condensed into liquid and are fed again into the refining plant, to be recycled, and argon gas is sent into magnesium metal through air-introduced machine
Heating tank is as carrier gas；The temperature for controlling cyclone separator is 200 DEG C of ＞, at this point, magnesium metal steam cure is magnesium metal
Particle is re-fed into reative cell with the product through down-comer, further participates in reaction, the utility model is by using whirlwind point
From the method that device separation-down-comer melts down again secondary response, the extent of reaction of raw material is effectively increased, the receipts of titanium sponge are improved
Rate.
Some embodiments according to the present utility model, the reative cell lower part is additionally provided with drawing mechanism, according to response situation
（Discharge port sampling analysis）Adjustment discharging speed in due course, it is ensured that material reaction is complete.
Some embodiments according to the present utility model, cyclone separator described in the utility model are high temperature cyclone separator,
The control of its temperature is more than 200 DEG C.
Embodiment according to the present utility model, with reference to shown in Fig. 2, the entrance of distillation refining system described in the utility model with
The outlet at bottom of the reative cell is connected, and the magnesium metal outlet of the distillation refining system is connected with the magnesium metal heating tank,
The distillation refining system further includes：Titanium sponge exports and magnesium chloride outlet；The entrance of the vacuum system and distillation essence
System processed is connected, the vacuum environment for obtaining the distillation refining system.The product that the reative cell generates enters distillation essence
System processed is detached every substance by the way of vacuum distillation, obtains sea since vapour pressure is different at the same temperature for each substance
Continuous titanium.
Some embodiments according to the present utility model, reative cell described in the utility model can also be fixed bed, trickle bed
Etc. forms, the reaction chamber shape can be it is horizontal, or vertical, smart magnesium and refined titanic chloride can in a gaseous form into
Enter reative cell, reative cell can also be entered in liquid form.
Embodiment according to the present utility model, Fig. 5 are that the double heat storage type burning structure of the utility model combustion system is illustrated
Figure, referring to Figure 5, combustion system described in the utility model includes：Radiant tube, regenerative chamber, reversal valve, combustion-supporting wind pipeline, combustion
Feed channel and flue, wherein multiple radiant tubes are set in the reative cell, and each radiant tube individually controls,
The indoor temperature of reaction can be controlled by adjusting the combustion power of radiant tube, be allowed to the best region in reaction temperature
750℃-850℃。
Some embodiments according to the present utility model, combustion system described in the utility model are regenerative combustion system, can
Think that single accumulation of heat may be Two-cuff Technique, combustion air can be air, oxygen-enriched air, combustion gas can be natural gas, coke-stove gas,
Water-gas, pyrolysis coal gas, oil liquefied gas etc..The combustion air is preheated to 500 DEG C or more through regenerative chamber accumulation of heat respectively with combustion gas
Afterwards, it burns into radiant tube, 1000-1200 DEG C of high-temperature flue gas is generated after burning, reaction indoor temperature may make to reach
750-850℃.If combustion gas is the exotic fuels such as natural gas, pyrolysis gas, oil liquefied gas, using single heat-accumulation combustion mode, i.e.,
Combustion air accumulation of heat, combustion gas not accumulation of heat；If combustion gas is the low-heat value gas such as coke-stove gas, water-gas, single accumulation of heat combustion both can be used
Burning mode, and Two-cuff Technique combustion system can be used, i.e., combustion air burns with participation after the equal accumulation of heat of combustion gas.
Some embodiments according to the present utility model, two side outlets of the radiant tube extend to the outside of the reative cell
Be connected respectively with the regenerative chamber, the reversal valve is connected with the regenerative chamber, the reversal valve and the combustion-supporting wind pipeline and
The flue switching connection, when the gas pipeline is connected with the regenerative chamber, the room temperature combustion gas and normal temperature air
Regenerative chamber through combustion system is preheated to 500 DEG C or more respectively, is passed through the radiant tube burning of combustion system together, i.e. Two-cuff Technique fires
Burning mode, referring to Figure 5；When the gas pipeline is connected with the burner of the radiant tube, the normal temperature air is through burning system
The regenerative chamber of system is preheated to 500 DEG C or more, and the radiant tube burning of combustion system, i.e., single accumulation of heat are passed through together with the room temperature combustion gas
Combustion system（It is not shown in figure）.
Some embodiments according to the present utility model, the combustion system improve reaction indoor temperature by radiant tube,
That is combustion gas and combustion air is in radiation combustion inner pipe, after the high-temperature flue gas of generation heats reative cell by modes such as radiation, convection current, then
Through reversal valve to smoke discharging pipe after regenerative chamber recycles heat.The radiant tube can be the forms such as U-shaped, I types, W types, each spoke
A pair of of burner of pipe arrangement, alternately burning, accumulation of heat, preheating, combustion process are penetrated, ensures to continue, stablize heating reative cell.
Another embodiment according to the present utility model, the production system of titanium sponge described in the utility model further include：Chlorination
Magnesium eletrolysis system, magnesium chloride of the entrance respectively with the outlet at bottom of the reative cell and the distillation refining system export phase
Another of company, a part of magnesium chloride that the reative cell is discharged and reative cell discharge is true through the distillation refining system
The magnesium chloride obtained after sky distillation separation, is electrolysed into electrolysis of magnesium chloride system；The electrolysis of magnesium chloride system goes out
Mouth is connected with the refining system and the chlorination system respectively, will be electrolysed the magnesium metal generated and be passed through the refining system, electricity
The chlorine that solution generates is passed through the chlorination system or the electrolysis magnesium reaction system processed（When using electrolytic method magnesium smelting）.
More specifically, by the segregative magnesium chloride in part that the reative cell is discharged be directly entered electrolysis of magnesium chloride system into
Row electrolysis, magnesium chloride and the thick titanium and cured magnesium metal of the separation of another part difficulty are passed through the distillation refining system and carry out
Vacuum distillation is detached every substance by the way of vacuum distillation, purified since vapour pressure is different at the same temperature for each substance
Isolated prepared sponge titanium, magnesium metal and magnesium chloride, wherein isolated magnesium chloride enter back into electrolysis of magnesium chloride system into
Row electrolysis, the magnesium metals that all electrolysis generate are passed through the refining system and recycle, be electrolysed generation chlorine be passed through it is described
Chlorination system or the electrolysis magnesium reaction system processed（When using electrolytic method magnesium smelting）It recycles；Isolated magnesium metal is logical
Enter the magnesium metal heating tank to recycle.
Other embodiments according to the present utility model, the chlorine that all electrolysis of the utility model generate are incorporated to chlorine tube
Net is used for above-mentioned magnesium metal preparation system（More specifically, it is used for the chlorination work of the second pretreatment system of the electrolytic method magnesium smelting
In sequence）Or the titanium tetrachloride preparation system（More specifically, it is used in the chloride process of the chlorination system）, repeat profit
With, cost is reduced, chlorine consumption is reduced and discharges, reduction environmental protection pressure.
In the another aspect of the utility model, it is proposed that a kind of side producing titanium sponge using foregoing production system
Method specifically includes following steps.
（1）First, ilmenite raw material is passed through first pretreatment system, after the processes such as drying, broken, carried out
Dispensing, then pelletizing, oxidizing roasting obtain meeting the acid pellet that gas-based shaft kiln enters stove requirement（Granularity 8-20mm ＞ 90%, water
Divide≤1%, TFe >=50%, compression strength >=2500N/P）.The acid pellet is entered by the feeding equipment at the top of gas-based shaft kiln
Gas-based shaft kiln, reduction generation sponge iron pelletizing, gained sponge iron pelletizing pass through broken, magnetic separation process under the action of also Primordial Qi,
Obtain sponge iron and Ti-enriched slag.The Ti-enriched slag enters chlorination system, and crude titanic chloride is generated under the action of chlorine, described thick
Titanium tetrachloride, which enters in refining plant, to be refined, and is obtained refined titanic chloride steam, is used for the preparation of titanium sponge.
（2）Magnesia/magnesium chloride mine will be contained to be passed through after second pretreatment system handled, be respectively suitable for
The material of ferrosilicon process or electrolysis, the material obtain crude magnesium and chlorine into first reaction system, and the crude magnesium passes through
Smart magnesium is obtained after refining system is refined.
（3）The production system that entire titanium sponge is replaced using argon gas makes whole system be in argon atmosphere.
（4）Combustion system is opened, is burnt using above-mentioned single heat-accumulation combustion mode or Two-cuff Technique combustion system, repeat,
Alternately burning, accumulation of heat, preheating, burning, efficiently utilize high-temperature flue gas waste heat, by the temperature in radiant tube be increased to 750 DEG C-
850℃。
（5）The temperature elevation system of opening metal magnesium heating tank, raises the temperature to 1100 DEG C, by the smart magnesium through vacuum ladle
It is passed through in the magnesium metal heating tank and gasifies as after smart magnesium steam, the essence magnesium steam is passed through with argon gas in reative cell, meanwhile,
The connecting valve between the refining plant and the reative cell is opened, obtained refined titanic chloride steam is passed through under reative cell
Portion enters around the nozzle of arrangement in reative cell, and carrying out magnesiothermic reduction with the smart magnesium steam reacts, and obtains thick titanium and magnesium chloride
Product.
（6）Initial reaction stage, unreacted titanium tetrachloride vapors and smart magnesium steam are ascended into argon gas with the product
Cyclone separator detaches, and controls 200 DEG C of the temperature ＞ of cyclone separator, cured magnesium metal and the product through down-comer again
It is sent into reative cell, further participates in reaction；The unreacted titanium tetrachloride vapors and argon gas enter drainer, in the condensation
In tank, titanium tetrachloride is condensed into liquid, is detached with argon gas, and gained titanium tetrachloride is Ke Xunhuanliyong with argon gas, specifically, not anti-
The titanium tetrachloride vapors answered are condensed into liquid and are fed again into the refining plant, and argon gas is sent into magnesium metal heating tank through air-introduced machine.
（7）The reative cell lower part is equipped with drawing mechanism, adjusts discharging speed in due course, it is ensured that material reaction is complete, by institute
The segregative magnesium chloride in part for stating reative cell discharge is passed through the electrolysis of magnesium chloride system Direct Electrolysis, at this point, can in addition mend
Fill magnesium chloride；Magnesium chloride and the thick titanium and cured magnesium metal of another part difficulty separation be passed through the distillation refining system into
Row vacuum distillation, it is different according to magnesium metal, magnesium chloride, the partial vapour pressure of Titanium at identical temperature（Example：When 1173K, the steaming of Mg
Air pressure is 1.1 × 104, MgCl2Vapour pressure be 9.5 × 102, the vapour pressure of Ti is 9.8 × 10-6）, purification separation（Wherein, divide
It is specifically as follows broken classification processing from processing）Obtain prepared sponge titanium, magnesium metal and magnesium chloride, wherein isolated chlorine
Change magnesium is passed through the electrolysis of magnesium chloride system and is electrolysed, and the magnesium metal that the electrolysis generates is passed through the refining system, electricity
The chlorine that solution generates is passed through the chlorination system or the electrolysis magnesium reaction system processed；Isolated magnesium metal is passed through the gold
Belong to magnesium heating tank, recycling.Gained Titanium is titanium sponge, content >=99%, Brinell hardness ＜ 200.
Embodiment：Wherein, in order to preferably describe and understand the technological process of the utility model production system, this practicality is newly
Radiant tube both sides combustion system is respectively depicted as the sides A combustion system and the sides B combustion system by type, is described in detail below.
（1）First, ilmenite raw material is passed through first pretreatment system, after the processes such as drying, broken, carried out
Dispensing, then pelletizing, oxidizing roasting obtain meeting the acid pellet that gas-based shaft kiln enters stove requirement（Granularity 8-20mm ＞ 90%, water
Divide≤1%, TFe >=50%, compression strength >=2500N/P）.The acid pellet is entered by the feeding equipment at the top of gas-based shaft kiln
Gas-based shaft kiln, reduction generation sponge iron pelletizing, gained sponge iron pelletizing pass through broken, magnetic separation process under the action of also Primordial Qi,
Obtain sponge iron and Ti-enriched slag.The Ti-enriched slag enters chlorination system, and crude titanic chloride is generated under the action of chlorine, described thick
Titanium tetrachloride, which enters in refining plant, to be refined, and is obtained refined titanic chloride steam, is used for the preparation of titanium sponge.
（2）Using electrolytic method magnesium smelting：Magnesia/magnesium chloride mine will be contained（Such as：Dolomite, magnesite etc.）By matching carbon, powder
After the processing of the processes such as broken, batch mixing, pelletizing, chlorination, material MgCl needed for electrolysis is obtained2, MgCl2It is electric into passing through in electrolytic cell
Solution reaction, obtains the material for being respectively suitable for ferrosilicon process or electrolysis, obtains crude magnesium and chlorine, and the crude magnesium passes through refining system
Smart magnesium is obtained after refined.
（3）The production system that entire titanium sponge is replaced using argon gas makes whole system be in argon atmosphere.
（4）Combustion system is opened, using natural gas as fuel, using single Regenerative Combustion System, first, come into operation the combustion of the sides A
Burning system, normal temperature air and natural gas are burnt by burner in radiant tube, the high-temperature flue gas of generation of burning by radiation,
After the heat transfer types such as convection current improve the indoor temperature of reaction, it is discharged through flue after the regenerative chamber accumulation of heat of the sides B；120s commutates
Afterwards, come into operation the sides B combustion system, and normal temperature air is after reversal valve enters in the regenerative chamber of the sides B and is preheated to 500 DEG C or more, with room temperature day
Right gas is entered by burner in radiant tube together to be participated in burning, after the high-temperature flue gas raising reaction chamber temperature for generation of burning, then through A
It is discharged after the regenerative chamber accumulation of heat of side, repeatedly, repeats, alternately burning, accumulation of heat, preheating, burning, efficiently utilize high-temperature flue gas
Waste heat, the indoor temperature that will burn are increased to 780 DEG C.
（5）The temperature elevation system of opening metal magnesium heating tank, raises the temperature to 1100 DEG C, by the smart magnesium through vacuum ladle
It is passed through in the magnesium metal heating tank and gasifies as after smart magnesium steam, the essence magnesium steam is passed through with argon gas in reative cell, meanwhile,
The connecting valve between the refining plant and the reative cell is opened, obtained refined titanic chloride steam is passed through under reative cell
Portion enters around the nozzle of arrangement in reative cell, and carrying out magnesiothermic reduction with the smart magnesium steam reacts, and obtains thick titanium and magnesium chloride
Product.
（6）Initial reaction stage, unreacted titanium tetrachloride vapors and smart magnesium steam are ascended into argon gas with the product
Cyclone separator detaches, and controls 250 DEG C of the temperature of cyclone separator, cured magnesium metal is sent with the product through down-comer again
Enter reative cell, further participates in reaction；The unreacted titanium tetrachloride vapors and argon gas enter drainer, in the drainer
In, titanium tetrachloride is condensed into liquid, is detached with argon gas, and gained titanium tetrachloride is Ke Xunhuanliyong with argon gas, specifically, unreacted
Titanium tetrachloride vapors be condensed into liquid and be fed again into the refining plant, argon gas is sent into magnesium metal heating tank through air-introduced machine.
（7）The reative cell lower part is equipped with drawing mechanism, adjusts discharging speed in due course, it is ensured that material reaction is complete, by institute
The segregative magnesium chloride in part for stating reative cell discharge is directly entered electrolysis of magnesium chloride system and is electrolysed, the separation of another part difficulty
Magnesium chloride be passed through the distillation refining system with the thick titanium and cured magnesium metal and be evaporated in vacuo, according to mutually synthermal
Lower magnesium metal, magnesium chloride, the partial vapour pressure of Titanium are different（Example：When 1173K, the vapour pressure of Mg is 1.1 × 104, MgCl2Steaming
Air pressure is 9.5 × 102, the vapour pressure of Ti is 9.8 × 10-6）, purification separation obtains prepared sponge titanium, magnesium metal and magnesium chloride,
In, isolated magnesium chloride enters back into electrolysis of magnesium chloride system and is electrolysed, and the magnesium metal that the electrolysis generates is passed through institute
Refining system is stated, the chlorine for being electrolysed generation is passed through the chlorination system or the electrolysis magnesium reaction system processed；Isolated gold
Belong to magnesium and be passed through the magnesium metal heating tank, reuses.Gained Titanium is titanium sponge, content >=99%, Brinell hardness ＜ 200.
Inventor has found that the utility model solves magnesium reduction process preparation by the catalytic mode of raw material gaseous state
The problems such as time-consuming for titanium sponge, interruption produces, efficiency is low, effectively reduces titanium sponge production cost, reduces labor intensity；This
Utility model handles ilmenite, high efficiency extraction iron therein, titanium using regenerative gas mode of heating, and occurs also with magnesium metal
Original is obtained by the reaction simple substance titanium, and in reaction process, the chlorine in electrolysis, chlorination process recycles；And the utility model uses
Regenerative combustion technology heats reative cell by the obtained high-temperature flue gas that burns, effectively, uniformly improves the same of reaction indoor temperature
When, ensure to be inert atmosphere in reative cell；Meanwhile controllable flue-gas temperature is adjusted flexibly to reacting indoor temperature,
Ensure reaction zone temperature in the temperature region occurred most beneficial for reaction, while the utility model is carried using heat accumulation type radiant tube
The temperature of high reative cell, the interior high-temperature flue gas out of radiant tube can be used for dried material or he uses；In addition, the utility model energy
Enough replace existing electric furnace and prepare Titanium to carry out magnesiothermy, reduces the energy consumption that reaction process is consumed, and then reduce vacuum also
Original prepares the cost of Titanium.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It should not be understood as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include one or more this feature.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral；Can be mechanical connection, it can also
It is electrical connection；Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or
The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship of the instructions such as term "upper", "lower"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitations of the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
In conjunction with and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments, meanwhile, for those of ordinary skill in the art, foundation
The thought of the application, there will be changes in the specific implementation manner and application range.
Claims (9)
1. a kind of production system of titanium sponge, including：Titanium tetrachloride preparation system, magnesium metal preparation system and titanium sponge prepare system
System, which is characterized in that wherein,
The titanium tetrachloride preparation system includes：The first pretreatment system for being sequentially connected goes back original system, chlorination system and refined
Ilmenite is pre-processed, is restored, chlorination and refined, obtaining refined titanic chloride steam by device successively；
The magnesium metal preparation system includes：Connected preparation system and refining system, will contain magnesia mine is through the preparation
System is handled, refined through the refining system after obtaining crude magnesium, obtains smart magnesium；
The titanium sponge preparation system includes：Reduction reaction system and distillation refining system, wherein the reduction reaction system point
Be not connected with the refining plant and refining system, by the smart magnesium gasification for after smart magnesium steam with the refined titanic chloride steam
Reduction reaction is carried out, thick titanium and magnesium chloride are obtained；The distillation refining system is connected with the reduction reaction system, will be described thick
Titanium is evaporated in vacuo, and prepared sponge titanium is obtained.
2. production system according to claim 1, which is characterized in that first pretreatment system be used for by ilmenite into
Row processing, obtains acid pellet；The chlorination system is used to that the richness that original system handles will to be gone back described in acid pellet warp
Titanium slag chlorination, obtains crude titanic chloride；The refining plant obtains refined titanic chloride steaming for refining the crude titanic chloride
Vapour.
3. production system according to claim 2, which is characterized in that the original system of going back includes：The gas base being sequentially connected
Shaft furnace, breaker and concentration equipment after the acid pellet is reduced to sponge iron pelletizing, through broken and magnetic separation, obtain sea
Continuous iron and Ti-enriched slag.
4. production system according to claim 1, which is characterized in that the preparation system includes：The pre- place of connected second
Reason system and the first reaction system are passed through first reaction system containing magnesia/magnesium chloride mine by described, obtain after pretreatment
To crude magnesium；First reaction system is connected with the refining system, and the crude magnesium is passed through the refining system.
5. production system according to claim 4, which is characterized in that first reaction system is that silicothermic reduction magnesium is anti-
Answer system or electrolysis magnesium reaction system processed.
6. production system according to claim 5, which is characterized in that the reduction reaction system includes：Second reaction system
System, combustion system and vacuum system, wherein second reaction system includes：Reative cell, magnesium metal heating tank, cyclonic separation
Device, cooling tank and air-introduced machine, wherein the multiple nozzles of ring cloth on the lower sides of the reative cell, at the bottom of the reative cell
Portion is equipped with distributor, and the distributor is equipped with multiple air admission holes, and the nozzle is connected with the refining plant, and the magnesium metal adds
Hot tank is connected with the refining system and the air admission hole respectively, provided into the reative cell refined titanic chloride steam and
Smart magnesium steam；The entrance of the cyclone separator is connected with the top exit of the reative cell, the bottom of the cyclone separator
Outlet is connected by down-comer with the side wall entrance of the reative cell, the top of the entrance of the cooling tank and the cyclone separator
Portion outlet is connected, and the titanium tetrachloride outlet of the cooling tank is connected with the refining plant；The entrance of the air-introduced machine with it is described
The argon gas export of cooling tank is connected, and the outlet of the air-introduced machine is connected with the magnesium metal heating tank, is steamed argon gas as smart magnesium
The carrier gas of vapour.
7. production system according to claim 6, which is characterized in that the combustion system includes：Radiant tube, regenerative chamber,
Reversal valve, combustion-supporting wind pipeline, gas pipeline and flue, wherein multiple radiant tubes are set in the reative cell, and
The outside that two side outlets of the radiant tube extend to the reative cell is connected with the regenerative chamber respectively, the reversal valve and institute
Regenerative chamber is stated to be connected, the reversal valve and the combustion-supporting wind pipeline and flue switching are connected to, the gas pipeline and
The burner of the regenerative chamber or the radiant tube is connected.
8. production system according to claim 6, which is characterized in that the entrance of the distillation refining system is reacted with described
The outlet at bottom of room is connected, and the magnesium metal outlet of the distillation refining system is connected with the magnesium metal heating tank, the distillation
Refining system further includes：Titanium sponge exports and magnesium chloride outlet；The entrance of the vacuum system and the distillation refining system phase
Even, the vacuum environment for obtaining the distillation refining system.
9. production system according to claim 8, which is characterized in that further include：Electrolysis of magnesium chloride system, entrance difference
It is connected with the magnesium chloride outlet of the outlet at bottom of the reative cell and the distillation refining system, one of the reative cell discharge
Divide magnesium chloride and another part magnesium chloride of reative cell discharge after distillation refining system vacuum distillation is separated
Electrolysis of magnesium chloride system is sent into be electrolysed；The outlet of the electrolysis of magnesium chloride system respectively with the refining system and described
Chlorination system or the electrolysis magnesium reaction system processed are connected, and the magnesium metal that electrolysis generates is passed through the refining system, electrolysis production
Raw chlorine is passed through the chlorination system or the electrolysis magnesium reaction system processed.
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| CN201721880959.4U CN207793385U (en) | 2017-12-28 | 2017-12-28 | A kind of production system of titanium sponge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322918A (en) * | 2020-11-10 | 2021-02-05 | 宁波兴业鑫泰新型电子材料有限公司 | Method for producing large-size copper-titanium alloy ingot in non-vacuum mode |
| CN114107700A (en) * | 2021-12-03 | 2022-03-01 | 江西宏科特种合金有限公司 | Titanium sponge production system |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322918A (en) * | 2020-11-10 | 2021-02-05 | 宁波兴业鑫泰新型电子材料有限公司 | Method for producing large-size copper-titanium alloy ingot in non-vacuum mode |
| CN114107700A (en) * | 2021-12-03 | 2022-03-01 | 江西宏科特种合金有限公司 | Titanium sponge production system |
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