CN202131087U - Device for recovering fluorine hydride from fluorinated raffinate - Google Patents
Device for recovering fluorine hydride from fluorinated raffinate Download PDFInfo
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- CN202131087U CN202131087U CN201120237352U CN201120237352U CN202131087U CN 202131087 U CN202131087 U CN 202131087U CN 201120237352 U CN201120237352 U CN 201120237352U CN 201120237352 U CN201120237352 U CN 201120237352U CN 202131087 U CN202131087 U CN 202131087U
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- raffinate
- gasifying reactor
- fluoridized
- gas
- solid materials
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Abstract
The utility model discloses a device for recovering fluorine hydride from fluorinated raffinate. The device comprises a gasification reactor and a condensing unit; a gas outlet is arranged at the top of the gasification reactor, and communicated with a gas inlet of the condensing unit; a spraying device, which atomizes fluorinated raffinate, is arranged at the internal upper part of the gasification reactor and connected with a pipeline for delivering the fluorinated raffinate to the interior of the gasification reactor; a heating device that heats the interior of the gasification reactor is arranged at the periphery of the side wall of the gasification reactor; and a solid material discharge opening is arranged at the bottom of the gasification reactor. Under the condition that concentrated sulphuric acid is not used, fluorinated raffinate is directly separated. The device has the advantages of thoroughness in separation, simplicity in operation, no secondary pollution, safety and environmental protection; and furthermore, recovered hydrogen fluoride can be directly circularly produced, resulting in meeting the circulation and economy needs.
Description
Technical field
The utility model relates to a kind of recovery and fluoridizes hydrofluoric device in the raffinate.
Background technology
Fluoridizing raffinate is that the waste liquid that produces in extensive fluoridation end back or the fluorination reaction process is gone up in industry, wherein contains a large amount of hydrogen fluoride (60-80%) usually, and water, sodium salt and the organic matters of suitable content.Fluoridizing raffinate can cause serious environmental to pollute like without processing and direct discharging.
Fluoridize raffinate at present and adopt the vitriol oil to handle usually, detailed process is to add in the still kettle fluoridizing raffinate, and in fluoridizing raffinate, adds the sulfuric acid of 98% above concentration; Make most of hydrogen fluoride of fluoridizing in the raffinate distill out system with the steam-heated cal(l)andria still kettle with gas form; Obtain hydrogen fluoride after the condensation, the end of line aspiration of going forward side by side is received, but this method can cause and contains a large amount of sulfuric acid and other waste materials in the leftover materials; These leftover materials are difficult for handling, and must cause environmental pollution.
Summary of the invention
The purpose of the utility model is on the basis of existing technology, provides a kind of and does not utilize sulfuric acid and directly reclaim and fluoridize hydrofluoric device in the raffinate.
The technical scheme of the utility model is:
Hydrofluoric device in the raffinate is fluoridized in a kind of recovery, and it comprises gasifying reactor and condensing works, and the top of said gasifying reactor is provided with pneumatic outlet, and this pneumatic outlet communicates with the gas inlet of said condensing works; Top in the said gasifying reactor is provided with the spraying plant of fluoridizing the raffinate atomizing, and this spraying plant is connected with pipeline from raffinate to said gasifying reactor delivered inside that fluoridize; The side wall perimeter of said gasifying reactor is provided with the heating unit to the heating of gasifying reactor inside; The bottom of said gasifying reactor is provided with the solid materials discharge port.
The gas outlet of said condensing works or with pipeline that the pneumatic outlet of said condensing works communicates on can also be provided with the gas emptier, this gas emptier can be emptying negative pressure pump or other emptier.The gas emptier can make the gas that produces in the gasifying reactor get into condensing works more smoothly, and makes generation certain negative pressure in the gas emptier.
On the pipeline between the gas inlet of the pneumatic outlet of gasifying reactor and said condensing works, can further be provided with gas-cleaning installation, be mingled in IMPURITIES IN on a small quantity to remove.
Rupture disk can also further be equipped with at the top of gasifying reactor, and it is dangerous that this rupture disk can prevent that the gas in the gasifying reactor is prone to that when concentration acquires a certain degree violent expansible takes place.
Above-mentioned spraying plant does not have concrete restriction, if can with the device of fluoridizing raffinate atomizing all can, as specifically adopting pressure-type spray day with fog, centrifugal sprayer or spraying first-class.
The heating unit of the utility model preferably is located in the chuck of said gasifying reactor sidewall.Heating unit can be gas or liquid heat transfer device, also can be electric heater unit.Heating unit can be with the temperature-stable in the gasifying reactor at 200-800 ℃.
Inside at gasifying reactor can also further be provided with one or many places fan, and this fan is in order to drive the gas flow in the gasifying reactor.
The bottom of gasifying reactor can be taper, semisphere or elliposoidal, and the solid materials discharge port then is positioned at the end of gasifying reactor bottom, with smooth discharge solid materials.
On the outer wall of gasifying reactor bottom, can further be provided with one or more pneumatic hammers, pneumatic hammer can shake the gasifying reactor bottom and the solid materials collection is more successfully discharged.
Can also be provided with the handling machinery of collecting and transporting solid materials at solid materials discharge port place, like spiral conveyer etc.The solid materials discharge port has the air seal performance, perhaps constitutes gas sealing structure between solid materials discharge port and the said spiral conveyer, and it is inner to prevent that air from getting into gasifying reactor from this solid materials discharge port.
The beneficial effect of the utility model:
The device of the utility model can be under the situation of not using the vitriol oil; In gasifying reactor, will fluoridize the raffinate atomizing also directly to its gas solid separation; And this heating gas solid separation is in the gasifying reactor of comparatively sealing, to carry out, and is different from the existing spray-dired method that needs to feed a large amount of gases fully.This device separates thoroughly, and is simple to operate, do not produce secondary pollution, safety and environmental protection; The hydrogen fluoride that recovery obtains can directly be used for cyclic production, and the recyclable utilization of solid materials meets circulation, economic requirement.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Among the figure, 1-spraying plant, 2-gasifying reactor, 3-heating unit, 4-fan, 5-spiral conveyer, 6-condensing works, 7-pneumatic hammer, the anti-film that exposes to the sun of 8-, 9-emptying negative pressure pump.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, hydrofluoric device in the raffinate is fluoridized in this recovery, comprises gasifying reactor 2, condensing works 6, spraying plant 1 and heating unit 3.The top of gasifying reactor 2 is provided with pneumatic outlet, and this pneumatic outlet communicates with the gas inlet of condensing works 6.The gas outlet of condensing works 6 or with pipeline that the pneumatic outlet of said condensing works 6 communicates on can also be provided with emptying negative pressure pump 9; Emptying negative pressure pump 9 can make the gas that produces in the gasifying reactor get into condensing works more smoothly, and makes generation certain negative pressure in the gas emptier.
Spraying plant 1 is positioned at the top of gasifying reactor 2, and it atomizes in gasifying reactor 2 in order to will fluoridize raffinate.Spraying plant 1 is connected with pipeline from raffinate to said gasifying reactor delivered inside that fluoridize.Heating unit 3 is located at the side wall perimeter of gasifying reactor 2, and it is in order to give gasifying reactor 2 inner heating; Heating unit 3 preferably is located in the chuck of said gasifying reactor 2 sidewalls.The bottom of gasifying reactor 2 is provided with the solid materials discharge port with air seal performance.
Between gasifying reactor 2 and condensing works 6, can set up the dust removal device.
Inside at gasifying reactor 2 can also further be provided with one or many places fan 4, and this fan 4 is in order to drive the gas flow in the gasifying reactor.
The bottom of gasifying reactor 2 can be taper, semisphere or elliposoidal, on the outer wall of gasifying reactor 2 bottoms, can further be provided with one or more pneumatic hammers 7, and pneumatic hammer 7 can shake the gasifying reactor bottom and the solid materials collection is more successfully discharged.
The solid materials discharge port then is positioned at the end of gasifying reactor 2 bottoms, can discharge solid materials smoothly like this.The solid materials discharge port has the air seal performance, and it is inner to prevent that air from getting into gasifying reactor from this solid materials discharge port.Can also be provided with the spiral conveyer 5 of collecting and transporting solid materials at solid materials discharge port place.
The running condition of the utility model is following: fluoridize raffinate (mass component: 70% hydrogen fluoride, 10% water, 15% sodium bifluoride, 5% organism) and get into spraying plant 1 through pipeline, and atomize at gasifying reactor 2 via spraying plant 1.Heating unit 3 is stabilized in 200-800 ℃ with the temperature equalisation in the gasifying reactor 2; The raffinate of fluoridizing of atomizing is heated immediately; Wherein hydrogen fluoride and aqueous vaporization, the organic carbon powdered, and sodium bifluoride resolves into Sodium Fluoride and hydrogen fluoride under this temperature; Wherein Sodium Fluoride be solidified into Powdered, hydrogen fluoride gasification.The gasification component carries out carrying out condensation in the condensing works, and the hydrogen fluoride of isolating wherein recycles, other gas emptyings.Powder material in the gasifying reactor drops down onto reactor bottom, and landing or the solid materials discharge port that under the pneumatic hammer effect, passes through to seal get in the spiral conveyer 5, and see this device off.Through detecting; In the above-mentioned treating processes, fluoridize the hydrogen fluoride in the raffinate and the hydrogen fluoride that decompose to produce has obtained the recovery near 100%, only contain carbon and Sodium Fluoride in the solid materials; But through also recirculation use after further separating, whole process need not to add sulfuric acid.
Claims (10)
1. hydrofluoric device in the raffinate is fluoridized in a recovery, and it is characterized in that: comprise gasifying reactor and condensing works, the top of said gasifying reactor is provided with pneumatic outlet, and this pneumatic outlet communicates with the gas inlet of said condensing works; Top in the said gasifying reactor is provided with the spraying plant of fluoridizing the raffinate atomizing, and this spraying plant is connected with pipeline from raffinate to said gasifying reactor delivered inside that fluoridize; The side wall perimeter of said gasifying reactor is provided with the heating unit to the heating of gasifying reactor inside; The bottom of said gasifying reactor is provided with the solid materials discharge port.
2. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: the gas outlet of said condensing works or the pipeline that communicates with the pneumatic outlet of said condensing works are provided with the gas emptier.
3. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: between the gas inlet of the pneumatic outlet of said gasifying reactor and said condensing works, be provided with gas-cleaning installation.
4. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: said spraying plant is pressure-type spray day with fog, centrifugal sprayer or fog-spray nozzle.
5. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: said heating unit is located in the chuck of said gasifying reactor sidewall; Said heating unit is gas or liquid heat transfer device or electric heater unit.
6. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: the inside of said gasifying reactor is provided with fan, and said fan is in order to drive the gas flow in the gasifying reactor; Rupture disk also is equipped with at the top of said gasifying reactor.
7. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: the bottom of said gasifying reactor is taper, semisphere or elliposoidal, and said solid materials discharge port is positioned at the end of gasifying reactor bottom.
8. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 7, it is characterized in that: the outer wall of said gasifying reactor bottom is provided with one or more pneumatic hammers in order to shake the gasifying reactor bottom and the solid materials collection is discharged smoothly.
9. hydrofluoric device in the raffinate is fluoridized in recovery according to claim 1, it is characterized in that: said solid materials discharge port place is provided with the spiral conveyer of collecting and transporting solid materials.
10. fluoridize hydrofluoric device in the raffinate according to claim 1 or 9 described recovery, it is characterized in that: said solid materials discharge port has gas sealing structure, constitutes gas sealing structure between perhaps said solid materials discharge port and the said spiral conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237352U CN202131087U (en) | 2011-07-07 | 2011-07-07 | Device for recovering fluorine hydride from fluorinated raffinate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237352U CN202131087U (en) | 2011-07-07 | 2011-07-07 | Device for recovering fluorine hydride from fluorinated raffinate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202131087U true CN202131087U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120237352U Expired - Fee Related CN202131087U (en) | 2011-07-07 | 2011-07-07 | Device for recovering fluorine hydride from fluorinated raffinate |
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| Country | Link |
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| CN (1) | CN202131087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958943A (en) * | 2015-06-04 | 2015-10-07 | 中国科学院上海应用物理研究所 | Separating apparatus and method for liquid hydrogen fluoride solution |
| CN108046214A (en) * | 2018-01-30 | 2018-05-18 | 常州安海化工工程技术有限公司 | A kind of hydrogen fluoride multiphase gasification separation recovery process |
| CN108190838A (en) * | 2018-01-30 | 2018-06-22 | 常州安海化工工程技术有限公司 | A kind of hydrogen fluoride multiphase gasification separation recovery system |
-
2011
- 2011-07-07 CN CN201120237352U patent/CN202131087U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958943A (en) * | 2015-06-04 | 2015-10-07 | 中国科学院上海应用物理研究所 | Separating apparatus and method for liquid hydrogen fluoride solution |
| CN108046214A (en) * | 2018-01-30 | 2018-05-18 | 常州安海化工工程技术有限公司 | A kind of hydrogen fluoride multiphase gasification separation recovery process |
| CN108190838A (en) * | 2018-01-30 | 2018-06-22 | 常州安海化工工程技术有限公司 | A kind of hydrogen fluoride multiphase gasification separation recovery system |
| CN108190838B (en) * | 2018-01-30 | 2020-06-09 | 常州安海化工工程技术有限公司 | Hydrogen fluoride multiphase gasification separation recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20160707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |