CN202482083U - Titanium tetrachloride production system - Google Patents
Titanium tetrachloride production system Download PDFInfo
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- CN202482083U CN202482083U CN2011204258851U CN201120425885U CN202482083U CN 202482083 U CN202482083 U CN 202482083U CN 2011204258851 U CN2011204258851 U CN 2011204258851U CN 201120425885 U CN201120425885 U CN 201120425885U CN 202482083 U CN202482083 U CN 202482083U
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- titanium tetrachloride
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- mixing mud
- dryer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a titanium tetrachloride production system which comprises a chlorination furnace, a dust collector, a condenser, a solid-liquid separator and a mixed slurry storage device, which are sequentially connected with one another. The production system further comprises a spray dryer. The spray dryer is used for performing spray drying on mixed slurry in the mixed slurry storage device by using furnace gas of the chlorination furnace as heat carrying gas flow. A gas inlet of the spray dryer is connected with a gas outlet of the chlorination furnace. A gas outlet of the spray dryer is connected with a gas inlet of the dust collector. A feeding inlet of materials to be dried is connected with the mixed slurry storage device through a mixed slurry conveyor. By the system, original titanium tetrachloride production process is used as a carrier, sensible heat in the original titanium tetrachloride production process is utilized, simple and efficient processing of the mixed slurry is achieved, utilization efficiency of heat is higher, devices are more simplified, and operation cost is lower.
Description
Technical field
The utility model relates to a kind of method that the mixing mud that is produced in the dchlorine metallurgy is handled, and this method can be applicable to the recovery of lower boiling metal chlorides such as titanium tetrachloride, silicon tetrachloride.In addition, the utility model also relates to titanium tetrachloride production technique and the production unit that adopts above-mentioned treatment process.
Background technology
The production of titanium tetrachloride belongs to typical dchlorine metallurgy.In the production process of titanium tetrachloride, high-boiling-point impurity that the furnace gas of overflowing from chlorination furnace is contained and the solid impurity that brings with air-flow are after dust-precipitator gathers dust condensation, and its major part is separated with titanium tetrachloride, but still has few part FeCl
2, CaCl
2, AlCl
3, MgCl
2Deng impurity (accounting for 10%) through drip washing equipment the time by under the drip washing, be brought in the titanium tetrachloride, adopt usually equipment for separating liquid from solid such as thickener, strainer wherein impurity separate.The impurity such as high boiling point muriate that are suspended in the titanium tetrachloride are deposited on its bottom through thickener, are discharged through the screw discharging machine of thickener bottom by these impurity and mixing mud that titanium tetrachloride is formed.
At present, what equipment to handle the mixing mud of these solid contents about 50%, become all manufacturers problem anxious to be solved to improve metal recovery rate and to eliminate the processing environmental pollution that mud was brought with.Most of producers directly wash out after still adopting the thickener sedimentation, directly wash out after the cloth bag press filtration, evaporator evaporation etc.Directly wash out or the cloth bag press filtration after directly wash out all and can cause the wasting of resources and environmental pollution; Feeding quantity during evaporator evaporation, reinforced time etc. are not easy control, and slag viscosity is big, very easily result in blockage, can not complete drying, and vaporizer cost height, maintenance, maintenance workload are big etc. simultaneously, can not adapt to the processing of the mud of large-scale chlorination furnace generation.
Patent documentation CN102092783A discloses a kind of titanium tetrachloride deposition mud drying means; Proposed to realize the drying treatment of mixing mud with the centrifugal spray drying technology; Thereby volatile titanium tetrachloride in the recovery mixing mud; High-boiling-point impurity in the mixing mud then precipitates from gas when drying, is able to cleaning or utilization again.Yet the heat-carrying gas that uses in this centrifugal spray dryer drying method adopts is in air, nitrogen, the argon gas one or more, and after titanium tetrachloride was reclaimed in cooling, these heat-carrying gas also will return the spraying drying link and recycle.Therefore, this method must dispose equipment such as corresponding heat-carrying gas drying, heating in whole drying process.In addition, this method does not combine with original titanium tetrachloride Production Flow Chart well, therefore fails to utilize the sensible heat in the original production flow process.
The utility model content
First technical problem that the utility model solves provide a kind of use with metal chloride to be recycled be that the gas of same metal chloride carries out the mixing mud treatment process in the spray-dired dchlorine metallurgy as the heat-carrying air-flow to mixing mud.
Solving this technical problem the technical scheme of being taked is: the mixing mud treatment process in the dchlorine metallurgy; This mixing mud is made up of metal chloride to be recycled and impurity; The steps include: that at first use and metal chloride to be recycled are that the gas of same metal chloride carries out spraying drying as the heat-carrying air-flow to this mixing mud; Then, the gas after the spraying drying is carried out udst separation; At last, the gas after the udst separation is carried out condensation and obtains metal chloride liquid to be recycled.
Production with titanium tetrachloride is example: the metal chloride to be recycled in the mixing mud is titanium tetrachloride, and impurity mainly comprises high boiling other metal chlorides, titanium etc. in the mixing mud, and the heat-carrying air-flow then is a titanium tetrachloride gases.Certainly, also allow to contain other impurity in this titanium tetrachloride gases.The ideal way be directly with the furnace gas of the chlorination furnace in original titanium tetrachloride Production Flow Chart as the heat-carrying air-flow, at this moment, just can directly utilize the heat of furnace gas itself that mixing mud is carried out spraying drying, to make full use of the sensible heat in the original production flow process.
Because the heat-carrying air-flow that uses when metal chloride to be recycled in the mixing mud and spraying drying is same substance; Therefore can avoid introducing other impurity; Improve the recovery of metal chloride; Thereby also be convenient to directly use the recycling flow process of the furnace gas of chlorination furnace, reduce facility investment and working cost as heat-carrying air-flow simplification mixing mud.In addition, the gas after the udst separation is carried out condensed tail gas can be recycled and no longer return the spraying drying link through being discharged or reclaiming after the further processing, thereby saves equipment such as heat-carrying gas drying, heating.
Second technical problem that the utility model solves provides a kind of titanium tetrachloride production technique that adopts aforesaid method.
Solving this technical problem the technical scheme of being taked is: the titanium tetrachloride production technique comprises the steps: one, the furnace gas of chlorination furnace is fed spray-dryer; Two, the spray-dryer expellant gas is carried out udst separation; Three, the gas after the udst separation is carried out condensation; Four, condensed liquid is carried out solid-liquid separation, the mixing mud that obtains crude titanic chloride liquid and form by titanium tetrachloride to be recycled and impurity; Five, mixing mud is squeezed in the above-mentioned spray-dryer, thereby be that the heat-carrying air-flow carries out spraying drying to this mixing mud with said furnace gas.
Above-mentioned titanium tetrachloride production technique is the combination with spray drying technology and existing titanium tetrachloride Production Flow Chart; It utilizes the furnace gas that chlorination furnace generated in the existing titanium tetrachloride Production Flow Chart that the mixing mud of delivering to spray-dryer is carried out spraying drying; Expellant gas directly carries out udst separation, condensation, solid-liquid separation by existing titanium tetrachloride Production Flow Chart after the spraying drying; Mixing mud after the solid-liquid separation is sent back to spray-dryer again; So circulation and make the amount of mixing mud maintain lower level all the time, the then corresponding raising of the output of crude titanic chloride liquid.
Therefore; The titanium tetrachloride production technique of the utility model is to be carrier with original titanium tetrachloride Production Flow Chart; And utilized the sensible heat in the former flow process, with simply, mode has realized the mixing mud processing efficiently, and is higher than the deposition of the titanium tetrachloride described in background technology mud drying means efficiency of utilization; And equipment is simplified more, and running cost is lower.
The 3rd technical problem that the utility model solves provides a kind of titanium tetrachloride production system that adopts aforesaid method.
Solving this technical problem the technical scheme of being taked is: the titanium tetrachloride production system; It comprises chlorination furnace, dust-precipitator, condensing surface, equipment for separating liquid from solid and the mixing mud storing unit that is linked in sequence; Its improvement is also to comprise that the furnace gas that is used for said chlorination furnace is the heat-carrying air-flow mixing mud of said mixing mud storing unit is carried out spray-dired spray-dryer; The air inlet port of this spray-dryer links to each other with the chlorination furnace venting port; Exhaust port links to each other with the inlet mouth of dust-precipitator, and the input port of material to be dried links to each other with the mixing mud storing unit through the mixing mud e Foerderanlage.
In said system, chlorination furnace, dust-precipitator, condensing surface, equipment for separating liquid from solid and mixing mud storing unit are the existing device in the titanium tetrachloride Production Flow Chart.Different is that the utility model also is provided with spray-dryer between chlorination furnace and dust-precipitator; In addition, for the mixing mud in the mixing mud storing unit is squeezed into spray-dryer, also between mixing mud storing unit and spray-dryer, be provided with the mixing mud e Foerderanlage transport pipe of pump (as be provided with), its concrete structure repeats no more.
Spray-dryer can adopt commercially available equipment, also can design voluntarily as required.The concrete structure of the spray-dryer that the utility model adopts is: spray-dryer has a shell; Thereby be provided with a dividing plate in this shell the cavity in this shell is divided into left chamber and the right chamber that the bottom links to each other; The below of said left chamber and right chamber is provided with slag pocket; The bottom of slag pocket is provided with the deslagging port; Said air inlet port is located at the top of left chamber, and said exhaust port is located at the top of right chamber, the input port of said material to be dried then be installed in right chamber in spraying plant link to each other.
Thus, make above-mentioned spray-dryer not only simple in structure, and have dust removal with machine and spray-dired function concurrently.Its mode of operation is: the furnace gas of discharging from chlorination furnace at first gets into left chamber and moves to slag pocket from top to bottom, and in this process, part particulate in the furnace gas or dust settling are to the bottom of slag pocket; After this; Furnace gas gets into right chamber and motion from bottom to top; In this process; High-temperature furnace gas contact with mixing mud spraying from spraying plant ejection and heat exchange takes place, be heated volatilization and discharge from the exhaust port of right chamber roof with furnace gas and to get into dust-precipitator again of the titanium tetrachloride in the mixing mud spraying, and the high-boiling-point impurity in the mixing mud spraying then is dried to the bottom that also partly is deposited to slag pocket for particulate or dust.
It is pointed out that the spray-dryer of above-mentioned this structure is actually a kind of combination of dividing plate dust-precipitator and spray-dryer.Why the utility model adopts this structure; On the application's applicant expects in the dividing plate dust-precipitator in existing titanium tetrachloride Production Flow Chart thereby its basic reason is spraying plant is installed and is made it become spray-dryer, in order on the basis that does not change existing titanium tetrachloride Production Flow Chart basically, to realize the titanium tetrachloride production technique of the utility model.This idea itself that dividing plate dust-precipitator and spraying plant are made up is not easy to those skilled in the art to expect that this combination is a kind of non-obvious combination.
Further, the installation site of said spraying plant is near the top of right chamber.
Thus, countercurrent flow takes place in high-temperature furnace gas and mixing mud spraying, improves the heat exchange efficiency of mixing mud spraying and furnace gas.
Further, said spraying plant adopts centrifugal atomizer.
Additional aspect of the application and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the application's practice.
Description of drawings
Fig. 1 is the structural representation of the utility model titanium tetrachloride production system.
Fig. 2 is the schema of the utility model titanium tetrachloride production technique.
Fig. 3 is the concrete structure synoptic diagram of spray-dryer in the utility model titanium tetrachloride production system.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
At first; " spraying drying " to the utility model defines as follows: spraying drying is to utilize the method for spraying; Making mixing mud become droplet is dispersed in the heat-carrying air-flow; Mixing mud spraying and heat-carrying air-flow with and stream, adverse current or mixed flowing mode be in contact with one another, thereby make the metal chloride gasification to be recycled in the mixing mud, and the high-boiling-point impurity in the mixing mud is dried to and is particulate or dust process.The spray-dryer of the utility model can adopt centrifugal spray-dryer, press spray moisture eliminator or pneumatic spray drying device etc., but preferred centrifugal spray-dryer.
As shown in Figure 1; The titanium tetrachloride production system of the utility model comprises chlorination furnace 1, dust-precipitator 3, condensing surface 4, equipment for separating liquid from solid 5 and the mixing mud storing unit 6 that is linked in sequence; On this basis; This system comprises that also the furnace gas that is used for said chlorination furnace 1 is the heat-carrying air-flow mixing mud of said mixing mud storing unit 6 is carried out spray-dired spray-dryer 2; The air inlet port a of this spray-dryer 2 links to each other with chlorination furnace 1 venting port, and exhaust port b links to each other with the inlet mouth of dust-precipitator 3, and the input port c of material to be dried links to each other with mixing mud storing unit 6 through the mixing mud e Foerderanlage.Wherein, As shown in Figure 1; Equipment for separating liquid from solid 5 specifically is made up of thickener 5a and strainer 5b; The bottom of thickener 5a and strainer 5b all links to each other with mixing mud storing unit 6, and the clear liquid on thickener 5a top then pumps into the fluid inlet of strainer 5b through pipeline, obtains crude titanic chloride liquid from the liquid outlet of strainer 5b.In addition, condensing surface 4 concrete employing eluting columns, and the dust-precipitator 3 concrete gravitational precipitators that adopt.Certainly, condensing surface 4 can adopt other condensing equipment, and dust-precipitator 3 also can adopt inertial dust separator or tornado dust collector etc.
Below in conjunction with Fig. 2 the Production Flow Chart of the titanium tetrachloride production system of Fig. 1 is specified.At first; The furnace gas of discharging from chlorination furnace 1 gets into the spray-dryer 2 from the air inlet port a of spray-dryer 2; Simultaneously; The mixing mud that the front has generated is squeezed into the spray-dryer 2 through the input port c of mixing mud e Foerderanlage from the material to be dried of spray-dryer 2 from mixing mud storing unit 6; At this moment, the high-temperature furnace gas that gets into spray-dryer 2 contact concurrent hair tonic as heat-carrying air-flow and mixing mud spraying in the spray-dryer 2 and gives birth to heat exchange, the titanium tetrachloride in the mixing mud spraying be heated volatilize and with furnace gas from spray-dryer 2 exhaust port b discharge after get into dust-precipitator 3 again; High-boiling-point impurity in the mixing mud spraying then is dried to the bottom that is deposited to spray-dryer 2 for particulate or dust and part, and regularly discharges from the deslagging port d of spray-dryer 2 bottoms; Behind spray-dryer 2 expellant gas entering dust-precipitator 3; Wherein particulate or dust further precipitate; And the gas after dust-precipitator 3 udst separations gets into the condensation of eluting column spray again; At this moment titanium tetrachloride gases is condensed into liquid, gets into thickener 5a then and carries out sedimentation, and the tail gas of eluting column is then through being discharged or reclaiming after the further processing; The clear liquid on thickener 5a top pumps into the fluid inlet of strainer 5b through pipeline; Obtain crude titanic chloride liquid from the liquid outlet of strainer 5b; The mixing mud of thickener 5a bottom gets into mixing mud storing unit 6 with the mixing mud of holding back through strainer 5b; And then return the spray-dryer 2, thereby mixing mud is handled through the input port c of mixing mud e Foerderanlage from the material to be dried of spray-dryer 2.
As shown in Figure 3; Concrete structure as spray-dryer 2; Spray-dryer 2 has a shell 201, thereby be provided with a dividing plate 202 in this shell 201 cavity in this shell 201 is divided into the left chamber 203 and right chamber 204 that the bottom links to each other, and the below of said left chamber 203 and right chamber 204 is provided with slag pocket 205; The bottom of slag pocket 205 is provided with deslagging port d; Said air inlet port a is located at the top of left chamber 203, and said exhaust port b is located at the top of right chamber 204, the input port c of said material to be dried then be installed in right chamber 204 in spraying plants 206 link to each other.In addition, the installation site of spraying plant 206 is near the top and the employing centrifugal atomizer of right chamber 204.This spray-dryer 2 has dust removal with machine and spray-dired function concurrently.The furnace gas of discharging from chlorination furnace 1 at first gets into left chamber 203 and moves to slag pocket 205 from top to bottom, and in this process, part particulate in the furnace gas or dust settling are to the bottom of slag pocket 205; After this; Furnace gas gets into Room 204, right chamber and motion from bottom to top; In this process; High-temperature furnace gas contact with mixing mud spraying from spraying plant 206 ejection and heat exchange takes place, be heated volatilization and discharge from the exhaust port b at right chamber 204 tops with furnace gas and to get into dust-precipitator 3 again of the titanium tetrachloride in the mixing mud spraying, and the high-boiling-point impurity in the mixing mud spraying then is dried to the bottom that also partly is deposited to slag pocket 205 for particulate or dust.
Claims (4)
1. titanium tetrachloride production system; It comprises chlorination furnace (1), dust-precipitator (3), condensing surface (4), equipment for separating liquid from solid (5) and the mixing mud storing unit (6) that is linked in sequence; It is characterized in that: it comprises that also the furnace gas that is used for said chlorination furnace (1) is the heat-carrying air-flow mixing mud of said mixing mud storing unit (6) is carried out spray-dired spray-dryer (2); The air inlet port (a) of this spray-dryer (2) links to each other with chlorination furnace (1) venting port; Exhaust port (b) links to each other with the inlet mouth of dust-precipitator (3), and the input port of material to be dried (c) links to each other with mixing mud storing unit (6) through the mixing mud e Foerderanlage.
2. titanium tetrachloride production system as claimed in claim 1; It is characterized in that: said spray-dryer (2) has a shell (201); Be provided with a dividing plate (202) in this shell (201) thus the cavity in this shell (201) is divided into left chamber (203) and the right chamber (204) that the bottom links to each other; The below of said left chamber (203) and right chamber (204) is provided with slag pocket (205); The bottom of slag pocket (205) is provided with deslagging port (d); Said air inlet port (a) is located at the top of left chamber (203), and said exhaust port (b) is located at the top of right chamber (204), and then interior with being installed in right chamber (204) spraying plant (206) of the input port of said material to be dried (c) links to each other.
3. titanium tetrachloride production system as claimed in claim 2 is characterized in that: the installation site of said spraying plant (206) is near the top of right chamber (204).
4. like claim 2 or 3 described titanium tetrachloride production systems, it is characterized in that: said spraying plant (206) adopts centrifugal atomizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204258851U CN202482083U (en) | 2011-11-01 | 2011-11-01 | Titanium tetrachloride production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204258851U CN202482083U (en) | 2011-11-01 | 2011-11-01 | Titanium tetrachloride production system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502801A (en) * | 2011-11-01 | 2012-06-20 | 成都易态科技有限公司 | Method for processing mixed slurry in chloridizing metallurgy as well as production process and system for titanium tetrachloride |
| CN103127796A (en) * | 2013-02-23 | 2013-06-05 | 仙桃市中星电子材料有限公司 | Negative-pressure-absorption discharge-reduction system of tail gas in titanium tetrachloride production |
| CN104071829A (en) * | 2013-03-29 | 2014-10-01 | 沈阳铝镁设计研究院有限公司 | Titanium tetrachloride condensation dust collector and dust collecting method |
| CN109264775A (en) * | 2018-10-22 | 2019-01-25 | 河南龙兴钛业科技股份有限公司 | A kind of titanium tetrachloride continuous process system having both deslagging function and characteristics of energy saving |
| CN111517365A (en) * | 2020-06-10 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride production method and system |
| CN115406185A (en) * | 2022-08-26 | 2022-11-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride slurry drying system and method |
-
2011
- 2011-11-01 CN CN2011204258851U patent/CN202482083U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502801A (en) * | 2011-11-01 | 2012-06-20 | 成都易态科技有限公司 | Method for processing mixed slurry in chloridizing metallurgy as well as production process and system for titanium tetrachloride |
| CN103127796A (en) * | 2013-02-23 | 2013-06-05 | 仙桃市中星电子材料有限公司 | Negative-pressure-absorption discharge-reduction system of tail gas in titanium tetrachloride production |
| CN103127796B (en) * | 2013-02-23 | 2016-01-20 | 仙桃市中星电子材料有限公司 | In titanium tetrachloride production, tail gas negative pressure absorbing reduces discharging place system |
| CN104071829A (en) * | 2013-03-29 | 2014-10-01 | 沈阳铝镁设计研究院有限公司 | Titanium tetrachloride condensation dust collector and dust collecting method |
| CN109264775A (en) * | 2018-10-22 | 2019-01-25 | 河南龙兴钛业科技股份有限公司 | A kind of titanium tetrachloride continuous process system having both deslagging function and characteristics of energy saving |
| CN109264775B (en) * | 2018-10-22 | 2023-06-30 | 河南龙兴钛业科技股份有限公司 | Titanium tetrachloride continuous production system with slag discharging function and energy saving characteristic |
| CN111517365A (en) * | 2020-06-10 | 2020-08-11 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride production method and system |
| CN115406185A (en) * | 2022-08-26 | 2022-11-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium tetrachloride slurry drying system and method |
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Granted publication date: 20121010 |
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