CN202113624U - Film evaporation and multistage flash evaporation combined titanium fluid concentration unit - Google Patents
Film evaporation and multistage flash evaporation combined titanium fluid concentration unit Download PDFInfo
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- CN202113624U CN202113624U CN2011201642248U CN201120164224U CN202113624U CN 202113624 U CN202113624 U CN 202113624U CN 2011201642248 U CN2011201642248 U CN 2011201642248U CN 201120164224 U CN201120164224 U CN 201120164224U CN 202113624 U CN202113624 U CN 202113624U
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- flash
- evaporator
- preheater
- evaporation
- thin film
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Abstract
The utility model discloses a film evaporation and multistage flash evaporation combined titanium fluid concentration unit. Two preheaters connected in series are connected to the rear of a mixer and respectively utilize secondary steam generated from a film evaporator and a first-stage flash evaporator as a heat exchange medium for increasing temperature of titanium fluid, a condensed water preheater and a condensed water flash steam preheater which are used for increasing temperature of the titanium fluid further are sequentially connected to the rear of the two preheaters connected in series, the film evaporator is connected to the rear of the condensed water flash steam preheater, the first-stage flash evaporator, a second-stage flash evaporator and a third-stage flash evaporator are connected to the rear of the film evaporator sequentially, and the vacuum degree values of the flash evaporators are increased gradually. The film evaporation and multistage flash evaporation combined titanium fluid concentration unit is reasonable in structure and free of problems of local overheating, blocking of the evaporators and heating tubes due to titanyl sulfate crystal and the like and utilizes sensible heat of materials and condensed water and latent heat of secondary steam sufficiently, wherein steam can be saved by 35%-40%.
Description
Technical field
The utility model relates to a kind of titanium liquid enrichment facility.
Background technology
Because early stage hydrolysis takes place in titanium liquid easily; Can only concentrate at low temperature under the vacuum; Economic benefits and social benefits vacuum evaporation according to routine concentrates; The titanium liquid boiling point of one effect is 65 ~ 70 ℃ under 600mmHg vacuum, the saturation temperature of double evaporation-cooling is about 60 ℃, and the titanium liquid in two effects needs in 720mmHg vacuum, 48 ~ 50 ℃ of following evaporation and concentration so.Vacuum receives the influence of condensed water temperature, and will be cooled to so low temperature summer with the indirect steam condensation is very difficult, adopts steam jet pump can arrive this requirement, but has increased steam consumption, runs counter to former starting point; Simultaneously, double-effect evaporation concentration operation difficulty is big, and evaporimeter heating tube etc. is stopped up in the hot-spot, the titanyl sulfate crystallization that are easy to produce 1st effective evaporator.So the titanium white producer of China still adopts the single-action thin film evaporation to concentrate at present, titanium white powder product needed per ton consumes 5 ~ 6 tons of steam.
Summary of the invention
The purpose of the utility model is to provide a kind of steam that can reduce significantly to imitate the enrichment facility that the titanium liquid thin film evaporation of consumption combines with multistage flash evaporation.
Technical solution of the present invention is:
The enrichment facility that a kind of titanium liquid thin film evaporation combines with multistage flash evaporation; It is characterized in that: comprise the blender that diluted Ti solution mixes with dense titanium liquid; Connect the preheater of two series connection behind the blender; The heat exchange medium that the indirect steam conduct that the preheater of two series connection utilizes thin film evaporator and one-level flash evaporator to produce respectively raises the diluted Ti solution temperature; Connect the condensate preheater and the condensate flash steam preheater that further the diluted Ti solution temperature are improved behind the preheater of two series connection successively; Connect thin film evaporator behind the condensate flash steam preheater, connect one-level, secondary, three grades of flash evaporators behind the thin film evaporator successively, and the vacuum of flash evaporator is to be the form that improves gradually.
Said thin film evaporator adopts piece cellular type graphite-structure form, and each pre-heater adopts the graphite shell and tube, and three grades of flash evaporators adopt the flash evaporator of carbon steel lining fiberglass and lining graphite cake.
The utility model is rational in infrastructure, only needs the vacuum and the titanium liquid temp of control thin film evaporator, can not produce phenomenons such as hot-spot, titanyl sulfate crystallization obstruction evaporimeter heating tube; Made full use of material, the sensible heat of condensate and the latent heat of indirect steam, can practice thrift steam 35 ~ 40%, and have characteristics such as easy to operate, stable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
The enrichment facility that a kind of titanium liquid thin film evaporation combines with multistage flash evaporation; Comprise the blender that diluted Ti solution mixes with dense titanium liquid; Connect the preheater of two series connection behind the blender; The heat exchange medium that the indirect steam conduct that the preheater of two series connection utilizes thin film evaporator and one-level flash evaporator to produce respectively raises the diluted Ti solution temperature; Connect the condensate preheater and the condensate flash steam preheater that further the diluted Ti solution temperature are improved behind the preheater of two series connection successively; Connect thin film evaporator behind the condensate flash steam preheater, connect one-level, secondary, three grades of flash evaporators behind the thin film evaporator successively, and the vacuum of flash evaporator is to be the form that improves gradually.
Said thin film evaporator adopts piece cellular type graphite-structure form, and each pre-heater adopts the graphite shell and tube, and three grades of flash evaporators adopt the flash evaporator of carbon steel lining fiberglass and lining graphite cake.
During work; At first diluted Ti solution being got into a blender 1 mixes with dense titanium liquid; Send into 1# preheater 2 and the flash steam heat exchange of one-level flash vessel, the indirect steam heat exchange that gets into 2# preheater 3 and thin film evaporator 4 then successively; The indirect steam that utilizes thin film evaporator and one-level flash evaporator to produce raises the diluted Ti solution temperature, simultaneously, and the flash evaporation of one-level flash vessel, the indirect steam of thin film evaporator cooling condensation; Titanium liquid continuation after the temperature rising gets into 3# preheater 5 and condensate heat exchange, gets into the flash steam heat exchange of 4# preheater 6 and gasifying pot 7 generations; The temperature of titanium liquid is near the desired temperature of thin film evaporator at this moment; Titanium liquid gets into thin film evaporator 4 from the bottom, carry out heat exchange with the heating steam of shell side, and titanium liquid is heated under vacuum and evaporates rapidly; The steam of having vaporized is being carried secretly by the titanium liquid after concentrating; Become membranaceous and get into vaporization chamber along graphite block material hole wall with the fast rise of 20 ~ 30m/s, the gas-liquid separation device through the vaporization chamber top carries out gas-liquid separation, and titanium liquid has been accomplished first section thin film evaporation and concentrated.The titanium liquid that goes out thin film evaporator has certain temperature; Rely on the heat energy of titanium liquid itself then; Flow through successively one-level, secondary, three grades of flash evaporators 8,9,10, and the vacuum of flash evaporator is to be the form that improves gradually, the moisture in the titanium liquid continues to evaporate in flash vessels at different levels; Be the stepped evaporation cooling, titanium liquid also obtains further concentrating step by step.The concentrated titanium liquid that obtains after three grades of flash evaporators concentrate is drawn a part and is removed subsequent processing, and major part is mixed retrieval system with diluted Ti solution.
Said thin film evaporator adopts piece cellular type graphite-structure form, and each pre-heater adopts the graphite shell and tube, and three grades of flash evaporators adopt the flash evaporator of carbon steel lining fiberglass and lining graphite cake.
Thin film evaporator, one-level flash evaporator provide vacuum with water jet device 11, and secondary, three grades of flash evaporators adopt surface condensers 12 to add vacuum vacuum is provided.
Claims (2)
1. enrichment facility that titanium liquid thin film evaporation combines with multistage flash evaporation; It is characterized in that: comprise the blender that diluted Ti solution mixes with dense titanium liquid; Connect the preheater of two series connection behind the blender; The heat exchange medium that the indirect steam conduct that the preheater of two series connection utilizes thin film evaporator and one-level flash evaporator to produce respectively raises the diluted Ti solution temperature; Connect the condensate preheater and the condensate flash steam preheater that further the diluted Ti solution temperature are improved behind the preheater of two series connection successively; Connect thin film evaporator behind the condensate flash steam preheater, connect one-level, secondary, three grades of flash evaporators behind the thin film evaporator successively, and the vacuum of flash evaporator is to be the form that improves gradually.
2. the enrichment facility that titanium liquid thin film evaporation according to claim 1 combines with multistage flash evaporation; It is characterized in that: said thin film evaporator adopts piece cellular type graphite-structure form; Each pre-heater adopts the graphite shell and tube, and three grades of flash evaporators adopt the flash evaporator of carbon steel lining fiberglass and lining graphite cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201642248U CN202113624U (en) | 2011-05-23 | 2011-05-23 | Film evaporation and multistage flash evaporation combined titanium fluid concentration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201642248U CN202113624U (en) | 2011-05-23 | 2011-05-23 | Film evaporation and multistage flash evaporation combined titanium fluid concentration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202113624U true CN202113624U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201642248U Expired - Lifetime CN202113624U (en) | 2011-05-23 | 2011-05-23 | Film evaporation and multistage flash evaporation combined titanium fluid concentration unit |
Country Status (1)
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| CN (1) | CN202113624U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944399A (en) * | 2016-06-21 | 2016-09-21 | 淄博市博山万通机械厂 | Concentration method of sulfuric-acid-process titanium dioxide titanium solution and concentration device of concentration method |
| CN111569457A (en) * | 2019-02-15 | 2020-08-25 | 中国石油化工股份有限公司 | NMP solvent recovery method |
| CN114307206A (en) * | 2022-01-26 | 2022-04-12 | 河北乐恒节能设备有限公司 | Evaporation concentration device and method |
-
2011
- 2011-05-23 CN CN2011201642248U patent/CN202113624U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944399A (en) * | 2016-06-21 | 2016-09-21 | 淄博市博山万通机械厂 | Concentration method of sulfuric-acid-process titanium dioxide titanium solution and concentration device of concentration method |
| CN111569457A (en) * | 2019-02-15 | 2020-08-25 | 中国石油化工股份有限公司 | NMP solvent recovery method |
| CN111569457B (en) * | 2019-02-15 | 2022-08-12 | 中国石油化工股份有限公司 | NMP solvent recovery method |
| CN114307206A (en) * | 2022-01-26 | 2022-04-12 | 河北乐恒节能设备有限公司 | Evaporation concentration device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |