CN206521280U - A kind of device for reclaiming hydrogen fluoride - Google Patents

A kind of device for reclaiming hydrogen fluoride Download PDF

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Publication number
CN206521280U
CN206521280U CN201720746317.9U CN201720746317U CN206521280U CN 206521280 U CN206521280 U CN 206521280U CN 201720746317 U CN201720746317 U CN 201720746317U CN 206521280 U CN206521280 U CN 206521280U
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China
Prior art keywords
hydrogen fluoride
gasification reactor
dedusting
flow distributor
heat
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Expired - Fee Related
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CN201720746317.9U
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Chinese (zh)
Inventor
薛春林
薛珊梅
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Individual
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Individual
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Abstract

Of the present utility model to disclose a kind of device for reclaiming hydrogen fluoride, it includes gasification reactor, heat-source Cycles device, dedusting and purifying device, system interior circulation flow distributor and condensing unit;The gasification reactor middle and lower part is connected with dedusting and purifying device, and the dedusting and purifying device is connected with system interior circulation flow distributor, the system interior circulation flow distributor connection heat-source Cycles device and condensing unit;Top in gasification reactor is provided with atomising device and hot air distribution device, the oriented gasification reactor delivered inside of atomising device connection is fluorinated the pipeline of raffinate, the hot air distribution device connects the pipeline of the oriented gasification reactor delivered inside hot-air, and the pipeline of the conveying hot-air is connected with heat-source Cycles device;Gasification reactor and the dedusting and purifying device bottom is equipped with solid matter outlet.The utility model can effectively reduce energy consumption.

Description

A kind of device for reclaiming hydrogen fluoride
Technical field
The utility model is related to a kind of device for reclaiming hydrogen fluoride.
Background technology
Fluorination raffinate (mother liquor) is the waste liquid that industrial extensive fluorination reaction terminates to produce in rear or fluorination reaction process, Wherein usually contain substantial amounts of hydrogen fluoride (60-80%), and quite water, sodium salt and a small amount of organic matter of content.Fluorination is residual Liquid is directly discharged such as without processing can cause serious environmental pollution.
Current each similar manufacturer generally uses dense sulfuric acid treatment to fluorination mother liquor, and detailed process is to add fluorination mother liquor Enter in distillation still, and the sulfuric acid of 98% concentrations above is added into fluorination mother liquor, made with steam heating distillation still in fluorination mother liquor Most of hydrogen fluoride system, condensation are distilled out with gas form after obtain hydrogen fluoride, end of line aspiration of going forward side by side, but this method Can cause containing substantial amounts of Waste Sulfuric Acid and other waste materials in leftover materials, the residual waste not only measure it is big but also not disposable, must So cause serious environmental pollution.
To there is energy consumption big and be tower top outlet from gasification reactor for the processing of fluorination raffinate in the prior art, easily presss from both sides Miscellaneous powder dirt, influences recovering effect.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems of the prior art, providing a kind of dress for reclaiming hydrogen fluoride Put, improve the hydrogen fluoride rate of recovery and reclaim concentration, can effectively reduce energy consumption.
The technical solution of the utility model is:
A kind of device for reclaiming hydrogen fluoride, including in gasification reactor, heat-source Cycles device, dedusting and purifying device, system Circulating current distributor and condensing unit;The gasification reactor middle and lower part is connected with dedusting and purifying device, and the dedusting is net Makeup is put to be connected with system interior circulation flow distributor, and the system interior circulation flow distributor connects heat-source Cycles device And condensing unit;Top in gasification reactor is provided with atomising device and hot air distribution device, and the atomising device connection is oriented The gasification reactor delivered inside is fluorinated the pipeline of raffinate, and the hot air distribution device is connected in the oriented gasification reactor Portion conveys the pipeline of hot-air, and the pipeline of the conveying hot-air is connected with heat-source Cycles device;The gasification reactor and remove Dirt purifier bottom is equipped with solid matter outlet.
Described heat-source Cycles device can be it is any it is external the device of circulation thermal source can be provided, thermal source of the present invention is followed It is defeated that loop device can flow through hot air distribution device by the hot gas for being used to circulate that system interior circulation flow distributor is flowed back Enter gasification reactor, carry out heating up in tower in this way, cost can be reduced with power saving.
It is further preferred that described heat-source Cycles device can also be connected with heat power supply device 9, heat power supply device 9 can be Conventional can provide the device of thermal source;Further specifically, such as heat-source Cycles device can be molten salt heater, it can be with It is connected with the molten salt furnace of heat power supply device 9.
Dedusting and purifying device of the present invention and without concrete restriction, can be completely cleared by the dust (sodium fluoride) in air-flow , from energy-conservation and the angle of effect, it is preferred that the dust arrester is the dust arrester and gas purification dress being sequentially connected Put, i.e. gasification reactor middle and lower part is connected with dust arrester, dust arrester is connected with gas cleaning plant bottom, gas purification dress Put top with system interior circulation flow distributor to be connected, more specifically, for example, can be the cyclone separator being sequentially connected And sack cleaner.
It is further preferred that described system interior circulation flow distributor includes system internal circulation apparatus and distribution of air flow Device;By the regulation to system internal circulation apparatus and flow distributor, airflow portion is set to be back to heat-source Cycles device, portion Divide and enter condensing unit.Heat-source Cycles device is back to by fraction, heat energy loss can be reduced to reduce cost;Together When, applicant has surprisingly been found that the hydrogen fluoride of recycling does not also have significant change.System interior circulation dress of the present invention Putting can any can provide the device of circulating current, such as circulating fan;Described flow distributor can for it is any can To realize the device of distribution of air flow, such as air-flow distributor.
The condensing unit can be multistage or/and multi-form condensation, can further reduce energy consumption, and improve recovery Rate.
It is further preferred that the condensing unit is also associated with spray liquid concentration cycles device;Pass through spray liquid concentration cycles Device carries out concentration cycles utilization to spray liquid, can improve the recovery concentration and the rate of recovery of hydrogen fluoride.
It is further preferred that the gasification reactor and dedusting and purifying device bottom can be taper, hemispherical or ellipsoid Shape etc. is beneficial to the shape that solid is excluded, and solid matter outlet is located at the end of gasification reactor or dedusting and purifying device bottom, with Smoothly discharge solid material.
It is further preferred that the outer wall of the gasification reactor is provided with multiple pneumatic hammers, to tap gasification reactor, make anti- The solid material in device is answered more smoothly to discharge.
It is further preferred that it is also provided with collecting and transporting the conveyer of solid material at the solid matter outlet, Such as auger conveyor.
It is further preferred that the device for reclaiming hydrogen fluoride can be separately provided sodium fluoride purifier, or Solid matter outlet or conveyer connection sodium fluoride purifier, preferred fluorinated sodium high-temperature purification device, for purifying Sodium fluoride solid.
The beneficial effects of the utility model:
1) the utility model goes out air-flow by the middle and lower part of gasification reactor, passes through system interior circulation flow distributor portion Divide back gasification reactor to continue cycling through, partly into condensing unit, heat energy loss can be reduced to reduce cost;Meanwhile, Shen Ask someone it has surprisingly been found that the hydrogen fluoride recycled does not also have significant change;
2), can be completely cleared by the dust (sodium fluoride) in gas by dedusting and purifying device;
3) heated up by being entered outside gasification reactor by heat-source Cycles device from tower top by hot-air distributor in tower, Cost can further be reduced with power saving.
4) increased spray liquid inspissator can improve the recovery concentration and the rate of recovery of hydrogen fluoride.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Wherein:1 gasification reactor, 2 dust arresters, 3 gas cleaning plants, 4 system internal circulation apparatus, 5 distribution of air flow dress Put, 6 spray liquid concentration cycles devices, 7 one-level condensing towers, 8 multi-stage condensing towers, 9 heat power supply devices, 10 heat-source Cycles devices, 11 solids Material outlet, 12 auger conveyors, 13 hot air distribution devices, 14 atomising devices.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of device for reclaiming hydrogen fluoride, including gasification reactor 1, heat-source Cycles device 10, dedusting are net Makeup is put, system interior circulation flow distributor 5 and condensing unit;The middle and lower part of gasification reactor 1 and dedusting and purifying device Connection, the dedusting and purifying device is connected with system interior circulation flow distributor 5, the system interior circulation flow distributor 5 connection heat-source Cycles devices 10 and condensing unit;Top in gasification reactor 1 is provided with atomising device 14 and hot air distribution device 13, the atomising device 14 connects the pipeline that the oriented delivered inside of the gasification reactor 1 is fluorinated raffinate, the hot blast distribution dress The pipeline of the oriented delivered inside hot-air of gasification reactor 1 of 13 connections is put, the pipeline of the conveying hot-air is followed with thermal source Loop device 10 is connected;The gasification reactor 1 and dedusting and purifying device bottom are equipped with solid matter outlet 11.
Heat-source Cycles device 10 can be it is any it is external the device of circulation thermal source can be provided, can also and heat power supply device 9 are connected, and heat power supply device 9 can provide the device of thermal source for conventional;Such as heat-source Cycles device 10 can be that fused salt adds Hot device, it can be connected with the molten salt furnace of heat power supply device 9.
The dedusting and purifying device and without concrete restriction, can be completely cleared by the dust (sodium fluoride) in air-flow, Such as the dust arrester 2 and gas cleaning plant 3 to be sequentially connected, i.e. the middle and lower part of gasification reactor 1 is connected with dust arrester 2, removed Dirt device 2 is connected with the bottom of gas cleaning plant 3, the top of gas cleaning plant 3 and the phase of system interior circulation flow distributor 5 Even.
The system interior circulation flow distributor 5 can include system internal circulation apparatus 4 and flow distributor 5;Institute The system internal circulation apparatus 4 stated can any can provide the device of circulating current, such as circulating fan;Described distribution of air flow Device 5 can realize the device of distribution of air flow, such as air-flow distributor to be any.
The condensing unit can be connected for multistage or/and multi-form condensation, such as one-level condensing tower 7 with multi-stage condensing tower 8.
The condensing unit can also be connected with spray liquid concentration cycles device 6.
The gasification reactor 1 and dedusting and purifying device bottom can be beneficial to solid for taper, hemispherical or elliposoidal etc. The shape of exclusion, solid matter outlet 11 is located at the end of gasification reactor 1 or dedusting and purifying device bottom, solid with smooth discharge Body material.Multiple pneumatic hammers can be provided with the outer wall of the gasification reactor 1.
The conveyer of solid material, such as auger conveyor are also provided with collecting and transported at the solid matter outlet 11 12。
The device for reclaiming hydrogen fluoride can be separately provided sodium fluoride purifier, or solid matter outlet 11 Or conveyer connection sodium fluoride purifier, such as sodium fluoride high-temperature purification device.
Running situation of the present utility model is as follows:It is fluorinated raffinate (mass component:70% hydrogen fluoride, 10% water, 20% fluorination Sodium, minimal amount of organic matter) atomising device 14 is entered by pipeline, there is atomising device 14 to be atomized in gasification reactor 1, pass through heat Wind distributor 13 is heated hot blast penetrating gasification reactor 1, the fluorination raffinate of atomization is heated immediately, wherein hydrogen fluoride Gas, H20 gas, a small amount of organic gas and sodium fluoride solid.Gasifying section passes through dust arrester 2 and gas cleaning plant 3 Dedusting is carried out, is then condensed by system internal circulation apparatus 4 and the part of flow distributor 5 into condensing unit, part Heat-source Cycles device 10 is back to, gasification reactor 1 is inputted through hot-air distributor, and powder then by gasification reactor 1 and is removed Dirt device 2 and the solid matter outlet of gas purification bottom 11 are discharged.By detecting, in above-mentioned processing procedure, it can save 20%, hydrogen fluoride concentration is up to more than 95%.

Claims (10)

1. a kind of device for reclaiming hydrogen fluoride, it is characterised in that including gasification reactor, heat-source Cycles device, dust separation dress Put, system interior circulation flow distributor and condensing unit;The gasification reactor middle and lower part is connected with dedusting and purifying device, institute State dedusting and purifying device to be connected with system interior circulation flow distributor, the system interior circulation flow distributor connects thermal source EGR and condensing unit;Top in gasification reactor is provided with atomising device and hot air distribution device, the atomising device The pipeline that the oriented gasification reactor delivered inside is fluorinated raffinate is connected, the hot air distribution device connects the oriented gasification Inside reactor conveys the pipeline of hot-air, and the pipeline of the conveying hot-air is connected with heat-source Cycles device;The gasified reverse Device and dedusting and purifying device bottom is answered to be equipped with solid matter outlet.
2. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the dress of described recovery hydrogen fluoride Put and be additionally provided with sodium fluoride purifier, the sodium fluoride purifier is separately provided, or with solid matter outlet phase Even.
3. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that described system interior circulation air-flow Distributor includes system internal circulation apparatus and flow distributor.
4. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the heat-source Cycles device is with adding Thermal is connected.
5. it is according to claim 1 it is a kind of reclaim hydrogen fluoride device, it is characterised in that the dedusting and purifying device be according to The dust arrester and gas cleaning plant of secondary connection.
6. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the atomising device is change at a high speed Frequency aerosol dispersion device or mechanical frequency conversion aerosol dispersion device.
7. a kind of device for reclaiming hydrogen fluoride according to claim 5, it is characterised in that the condensing unit is multistage Or/and multi-form condensation.
8. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the condensing tower is also associated with spray Drench liquid concentration cycles device.
9. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the gasification reactor and dedusting Purifier bottom is taper, hemispherical or elliposoidal, and solid matter outlet is located at gasification reactor or dedusting and purifying device bottom The end in portion;The outer wall of the gasification reactor is provided with multiple pneumatic hammers.
10. a kind of device for reclaiming hydrogen fluoride according to claim 1, it is characterised in that the solid matter outlet is set There is the conveyer for collecting and transporting solid material.
CN201720746317.9U 2017-06-21 2017-06-21 A kind of device for reclaiming hydrogen fluoride Expired - Fee Related CN206521280U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720746317.9U CN206521280U (en) 2017-06-21 2017-06-21 A kind of device for reclaiming hydrogen fluoride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720746317.9U CN206521280U (en) 2017-06-21 2017-06-21 A kind of device for reclaiming hydrogen fluoride

Publications (1)

Publication Number Publication Date
CN206521280U true CN206521280U (en) 2017-09-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108910826A (en) * 2018-10-17 2018-11-30 杨松 It is a kind of to prepare hydrogen fluoride recirculating fluidized bed reacting furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108910826A (en) * 2018-10-17 2018-11-30 杨松 It is a kind of to prepare hydrogen fluoride recirculating fluidized bed reacting furnace
CN108910826B (en) * 2018-10-17 2019-12-24 杨松 Circulating fluidized bed reaction furnace for preparing hydrogen fluoride

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Granted publication date: 20170926