CN208218404U - A kind of continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas - Google Patents
A kind of continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas Download PDFInfo
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- CN208218404U CN208218404U CN201820719556.XU CN201820719556U CN208218404U CN 208218404 U CN208218404 U CN 208218404U CN 201820719556 U CN201820719556 U CN 201820719556U CN 208218404 U CN208218404 U CN 208218404U
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- sulfuric acid
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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
- Y02P20/10—Process efficiency
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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
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to the devices that a kind of continuity method hydrochloric acid full stripping produces hydrogen chloride gas, including resolution system and dilute sulfuric acid vacuum concentration system, resolution system includes resolving hydrochloric acid tower, level-one hydrogen chloride cooler, secondary chlorination hydrogen cooler, concentrated sulfuric acid drying tower, acid mist separator, and dilute sulfuric acid vacuum concentration system includes dilute sulfuric acid flash tank, acid sour heat exchanger, level-one sulphuric acid concentration slot, second level sulphuric acid concentration slot, first grade scrubber, level-one water vapor condenser, secondary scrubber, second level water vapor condenser, waste water tank, concentrated sulfuric acid medial launder.The utility model makes full use of the heat of dilution of the concentrated sulfuric acid, while the concentrated sulfuric acid is continuously added to from resolving hydrochloric acid tower top, and resolving hydrochloric acid overhead reflux ratio can be made to minimize, saved energy consumption to greatest extent；Using staged vacuum concentration technology, the waste heat of back segment acid is made full use of, heating steam consumption is saved to greatest extent, provides technical guarantee for device long period continuous work.
Description
Technical field
The utility model relates to a kind of dilute hydrochloric acid complete solution analysis apparatus, produce more particularly, to a kind of continuity method hydrochloric acid full stripping
The device of hydrogen chloride gas.
Background technique
It is well known that HCl and H2There are higher boiling azeotrope, (i.e. its boiling point is higher than simple H to the dilute hydrochloric acid that O is formed2O
And HCl), constant boiling point and azeotropic composition change with pressure.So to handle dilute hydrochloric acid makes HCl and H2O is separated, with simple
Distillation or gas stripping process be not all right.Currently, the method for having industrialized the analysis of dilute hydrochloric acid complete solution has following two kinds:
1, Calcium Chloride Method
CaCl2Aqueous solution extraction breaks azeotropic and recycles HCl, i.e., the limit that calcium chloride breaks its azeotropic point is added in dilute hydrochloric acid
System, comes out HCl separation.Its essence is saline extraction, combined by a saline extraction stripper and a water flash column and
At it is difficult to will lead to containing sulfate radical or containing larger molecular organics operation in hydrochloric acid；It is steamed since Er Taita is required to heating
Hair, so steam consumption is high, HCl per ton (folding 100%) consumption about 10.5 tons of left sides of steam are recycled in typical 20% dilute hydrochloric acid parsing
It is right.
Calcium Chloride Method deeply parsing industrialized unit there is currently the problem of:
(1), due to high calcium chloride concentration aqueous solution the characteristics of, it is easy the fouling at reboiler hole wall, leads to its heat transfer efficiency
Decline, acid content is exceeded in waste water；The chloride especially formed into system dilute hydrochloric acid band by metal ions such as iron, zinc, to chlorine
Changing calcium solution has flocculation, can directly result in calcium chloride solution Crystallization Plugging equipment and pipeline；The tool such as silicon powder and micropowder
There is thixotropic micro mist, there is thickening power, gradually causes calcium chloride solution in the gradually fouling of reboiler tube side, will cause first useless
Acid content is exceeded in water, eventually leads to reboiler cisco unity malfunction.So in actual industrialization operation, the use of reboiler
Service life about at 1~2 year or so, needs overhaul to handle (returning factory's redrilling).
(2), hydrogen chloride content is high in waste water, and in order to extend the cycle of operation, chlor-alkali enterprises running gear, which uses, reduces hydrochloric acid
The technological measure of middle calcium chloride concentration, Calcium Chloride Method device discharge waste water in HCl concentration be much larger than normal process target value
1%；HCl concentration actual value is 2~3% or so in waste water；Its main cause has two, first is that caused by Analytic Tower design defect,
Mass and heat transfer is insufficient.(mostly using packed tower now) analytically is analyzed on tower structure or tower diameter type selecting is excessive；Or filler
It is improper to select；Or liquid distribution trough, redistributor design selection are improper.Second is that influence of the reboiler due to fouling, heat transfer effect
Rate decline.
(3), block in order to prevent, Calcium Chloride Method resolving hydrochloric acid device needs the calcium chloride hydrochloric acid in regular exchange system molten
Liquid prevents harmful ion from accumulating；Such as Tian Ye group dilute hydrochloric acid Calcium Chloride Method depth resolver when first quarter exchange system in
Calcium chloride is primary, and year replaces 4 times；Calcium chloride is primary in northern member 2 months exchange systems of chemical industry, and year replaces 6 times.
2, variable-pressure rectification method (or pressure differential method)
It is to be changed using azeotropic hydrochloric acid composition with pressure that variable-pressure rectification, which breaks azeotropic recycling HCl basic principle, relative to H2O
And HCl, the characteristics of azeotropic hydrochloric acid is high boiling component always, so that reaching makes H2The purpose of O and HCl separation.In absolute pressure
When 33.33kPa, azeotropic composition is about 22%HCl, and constant boiling point temperature is 81.2 DEG C, and the boiling temperature of water is 70.8 DEG C；
When pressure is 0.20~0.30MPa (A), hydrochloric acid azeotropic composition mutually should be 19%~18.20%HCl.Dilute hydrochloric acid
Rectification under vacuum is carried out into vacuum rectifying tower, tower top steams partial reflux after water condensation, remaining is as waste water discharge system；Tower
Bottom is the barostat control after enrichment, and into pressing and desorption tower, tower top desorbs HCl, through the cooling acid mist for removing deentrainment of B-grade condensation
Afterwards, then through low temperature demisting it is further dehydrated and obtains dry hydrogen chloride and send user.
Transformation distills dilute hydrochloric acid analytic technique adaptability ratio CaCl2The broken azeotropic method of aqueous solution extraction is good, to most in hydrochloric acid
Number impurity is insensitive, but cannot will lead to like that liquid foam containing the organic matter of macromolecular in acid, to destroy the biography of filler
Matter.It is typical high energy consumption technique that transformation, which distills broken azeotropic technique, and the parsing of 20% dilute hydrochloric acid recycles HCl per ton (folding 100%) and disappears
About 14 tons of steam or so of consumption.
Utility model content
In order to overcome the shortcomings of the prior art, the utility model provides that a kind of economic value is higher, recycles and uses
Way widely continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas.The utility model utilizes the sulfuric acid of high concentration
It (83%~88%) is extractant, the hydrogen chloride in continuous extraction hydrochloric acid is produced dry hydrogen chloride gas and recycled.
A kind of continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas, and described device includes interconnected parsing system
System and dilute sulfuric acid vacuum concentration system, the resolution system includes resolving hydrochloric acid tower, level-one hydrogen chloride cooler, secondary chlorination hydrogen
Cooler, concentrated sulfuric acid drying tower, acid mist separator, the dilute sulfuric acid vacuum concentration system include that dilute sulfuric acid flash tank, sour acid change
Hot device, level-one sulphuric acid concentration slot, second level sulphuric acid concentration slot, first grade scrubber, level-one water vapor condenser, secondary scrubber, two
Grade water vapor condenser, waste water tank, concentrated sulfuric acid medial launder, the resolving hydrochloric acid tower bottom and dilute sulfuric acid reboiler, dilute sulfuric acid
Flash tank is connected, and resolving hydrochloric acid top of tower is connected with concentrated sulfuric acid medial launder；Resolving hydrochloric acid column overhead sequentially with level-one chlorination
Hydrogen cooler, secondary chlorination hydrogen cooler, concentrated sulfuric acid drying tower, acid mist separator are connected, the level-one hydrogen chloride cooler,
Secondary chlorination hydrogen cooler is connected in the middle part of resolving hydrochloric acid tower respectively again；
The dilute sulfuric acid flash tank is connected by dilute sulphuric acid delivery pump with sour heat exchanger, the sour heat exchanger and one of acid
Grade sulphuric acid concentration slot is connected, and the level-one sulphuric acid concentration slot is connected with second level sulphuric acid concentration slot, the second level sulphuric acid concentration
Slot is connected with sour heat exchanger；The level-one sulphuric acid concentration slot is connected with first grade scrubber, the first grade scrubber and one
Grade water vapor condenser is connected, and the second level sulphuric acid concentration slot is connected with secondary scrubber, the secondary scrubber and two
Grade water vapor condenser be connected, the level-one water vapor condenser, second level water vapor condenser respectively with Water-ring vacuum pump machine
Group is connected；The sour heat exchanger of acid is also connected with concentrated sulfuric acid medial launder.
Preferably, the level-one water vapor condenser, second level water vapor condenser are connected with waste water tank respectively, institute
It states waste water tank and is connected by waste water delivery pump with the water treatment centers outside battery limit (BL).
Preferably, the concentrated sulfuric acid medial launder is connected by concentrated sulfuric acid reflux pump with resolving hydrochloric acid tower.
Preferably, the level-one sulfuric acid heater of level-one sulphuric acid concentration slot is connected with the first steam distribution platform, second level sulphur
The second level sulfuric acid heater of sour thickener is connected with the second steam distribution platform.
Preferably, dilute sulfuric acid reboiler is connected with the first steam distribution platform, steam condensate (SC) slot respectively.
Preferably, the dry tower bottom of the concentrated sulfuric acid is connected by concentrated sulfuric acid circulating pump with concentrated sulfuric acid drying tower top
It is logical.
Preferably, being respectively equipped with multiple enriched chambers, adjacent concentration in the level-one sulphuric acid concentration slot, second level sulphuric acid concentration
Partition is equipped between room.Multiple indoor acid solution explosive evaporations at a lower temperature of concentration, concentration improve step by step in thickener, respectively
The partition of grade enriched chamber prevents the reflux of acid solution, ensure that the maximum mean temperature difference between acid solution and heating tube, makes full use of
The heating surface (area) (HS of tantalum pipe surface, ensure that treated, sulfuric acid reaches technique requirement.
The utility model has the beneficial effects that:
1, it can produce dry hydrogen chloride gas with the hydrogen chloride in continuous extraction hydrochloric acid and recycle；
2, the heat of dilution of the concentrated sulfuric acid is made full use of, while the concentrated sulfuric acid is continuously added to from resolving hydrochloric acid tower top, salt acidolysis can be made
Analysis overhead reflux ratio minimizes, and has saved energy consumption to greatest extent in this way；Steam consumption is low, analyses with Calcium Chloride Method complete solution
Technics comparing saves 30% or more steam consumption；50% or more steam consumption is saved with variable-pressure rectification complete solution analysis technics comparing；
It 3, can be utmostly using staged vacuum concentration technology according to the difference of dilute sulfuric acid various concentration boiling temperature
Reduce concentration technology to heating vapor (steam) temperature and process equipment material requirement；And make full use of the remaining of back segment high temperature gelled acid
Heat saves heating steam consumption to greatest extent, provides technology for vacuum concentration technique for dilute sulphuric acid device long period continuous work
It ensures；
4, Technological adaptability is good, of less demanding to the impurity content in dilute hydrochloric acid；
5, the HCl content in waste water is stably controlled≤0.3%, and cost for wastewater treatment is low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model resolution system；
Fig. 2 is the structural schematic diagram of the utility model dilute sulfuric acid vacuum concentration system.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but claimed by the utility model
Range be not limited to this.
Referring to Fig.1, Fig. 2, a kind of continuity method hydrochloric acid full stripping produce the device of hydrogen chloride gas, and described device includes parsing
System and dilute sulfuric acid vacuum concentration system, the resolution system include resolving hydrochloric acid tower 1, level-one hydrogen chloride cooler 2, second level chlorine
Change hydrogen cooler 3, concentrated sulfuric acid drying tower 4, acid mist separator 6, dilute sulfuric acid reboiler 7, the dilute sulfuric acid vacuum concentration system packet
Include dilute sulfuric acid flash tank 8, the sour heat exchanger 10 of acid, level-one sulphuric acid concentration slot 11, second level sulphuric acid concentration slot 14, first grade scrubber 12,
Level-one water vapor condenser 13, secondary scrubber 15, second level water vapor condenser 16, waste water tank 18, concentrated sulfuric acid medial launder 19,
1 bottom of resolving hydrochloric acid tower is connected with dilute sulfuric acid reboiler 7, and 1 top of resolving hydrochloric acid tower is connected with concentrated sulfuric acid medial launder 19
It is logical；1 tower top of resolving hydrochloric acid tower sequentially with level-one hydrogen chloride cooler 2, secondary chlorination hydrogen cooler 3, concentrated sulfuric acid drying tower 4, acid
Mist separator 6 is connected, and the level-one hydrogen chloride cooler 2, secondary chlorination hydrogen cooler 3 are again respectively and in resolving hydrochloric acid tower 1
Portion is connected；
1 bottom of resolving hydrochloric acid tower is connected with dilute sulfuric acid flash tank 8, and the dilute sulfuric acid flash tank 8 is sour with acid respectively
Heat exchanger 10 is connected with level-one water vapor condenser 13, and the sour heat exchanger 10 of acid is connected with level-one sulphuric acid concentration slot 11,
The level-one sulphuric acid concentration slot 11 is connected with second level sulphuric acid concentration slot 14, the second level sulphuric acid concentration slot 14 and the sour heat exchanger of acid
10 are connected；The level-one sulphuric acid concentration slot 11 is connected with first grade scrubber 12, and the first grade scrubber 12 is steamed with level-one water
Gas condenser 13 is connected, and the second level sulphuric acid concentration slot 14 is connected with secondary scrubber 15, the secondary scrubber 15 with
Second level water vapor condenser 16 is connected, the level-one water vapor condenser 13, second level water vapor condenser 16 respectively with water ring
Vacuum pump assembly 27 is connected；The sour heat exchanger 10 of acid is also connected with concentrated sulfuric acid medial launder 19.
The level-one water vapor condenser 13, second level water vapor condenser 16 are connected with waste water tank 18 respectively, described
Waste water tank 18 is connected by waste water delivery pump 17 with the water treatment centers outside battery limit (BL).The concentrated sulfuric acid medial launder 19 passes through dense
Sulfuric acid reflux pump 20 is connected with resolving hydrochloric acid tower 1.The dilute sulfuric acid flash tank 8 is exchanged heat by dilute sulphuric acid delivery pump 9 and acid acid
Device 10 is connected.
The level-one sulfuric acid heater of level-one sulphuric acid concentration slot is connected with the first steam distribution platform 23, second level sulphuric acid concentration slot
Second level sulfuric acid heater and the second steam distribution platform 25 be connected；The level-one sulfuric acid heater, second level sulfuric acid heater point
It is not connected with steam condensate (SC) slot 24.Dilute sulfuric acid reboiler 7 distributes platform 23,24 phase of steam condensate (SC) slot with the first steam respectively
Connection.4 bottom of concentrated sulfuric acid drying tower is connected by concentrated sulfuric acid circulating pump 5 with 4 top of concentrated sulfuric acid drying tower, and the concentrated sulfuric acid is dry
Dry 4 top of tower is connected with 98% sulfuric acid supplemental tank 25.
Multiple enriched chambers are respectively equipped in the level-one sulphuric acid concentration slot, second level sulphuric acid concentration, are set between adjacent enriched chamber
There is partition 21.Multiple indoor acid solution explosive evaporations at a lower temperature of concentration, concentration improve step by step in thickener, concentrations at different levels
The partition of room prevents the reflux of acid solution, ensure that the maximum mean temperature difference between acid solution and heating tube, takes full advantage of tantalum pipe
The heating surface (area) (HS on surface, ensure that treated, sulfuric acid reaches technique requirement.
Above-mentioned apparatus is used for the method that continuity method hydrochloric acid full stripping produces hydrogen chloride gas, includes the following steps:
(1) it is continuously added to resolving hydrochloric acid tower 1 from resolving hydrochloric acid tower middle and upper part after the dilute hydrochloric acid metering from storage tank 22, with
83%~88% concentrated vitriol lower from tower top packing layer spray mixes, and concentrated vitriol is absorbed into the water quilt after tower in dilute hydrochloric acid
It is diluted to 57%~62% dilute sulfuric acid, while being heated by the heat of dilution of itself, inputs heat in tower bottom dilute sulfuric acid reboiler 7
Under collective effect, dilute sulfuric acid is heated to fluidized state；Rise vapor gradually the hydrogen chloride in hydrochloric acid and sulfuric acid mixture liquid
Tower is stripped off, sequentially enters level-one hydrogen chloride cooler and secondary chlorination hydrogen cooler sub-sectional cooling, in mixed chlorinated hydrogen
Sulfuric acid, vapor, which are condensed, is back to resolving hydrochloric acid tower；
(2) hydrogen chloride gas for going out secondary chlorination hydrogen cooler is cooled to 15 DEG C and enters concentrated sulfuric acid drying tower, the water of gas
Divide by the dry absorption of the concentrated sulfuric acid, the hydrogen chloride gas of drying tower sends out battery limit (BL) entrance after acid mist separator removes sulfuric acid mist out
It is recycled after hydrogen chloride compressor pressurization；
(3) dilute sulfuric acid of resolving hydrochloric acid tower tower bottom is sent into adiabatic flash in dilute sulfuric acid flash tank by potential difference pressurization, metering,
The sour heat exchanger of acid is sent by dilute sulphuric acid delivery pump after flash distillation concentrate, utilizes second level dilute sulfuric acid thickener high temperature concentrated vitriol out
Waste heat preheats dilute sulfuric acid, and subsequently into level-one sulphuric acid concentration slot, dilute sulfuric acid is heated by level-one sulfuric acid heater in slot, sulfuric acid in slot
It is gradually concentrated, the vapor evaporated in the slot is introduced into first grade scrubber, and the vapor come out with dilute sulfuric acid flash tank
Enter level-one water vapor condenser together, the vapor in tail gas is largely condensed, after fixed gas and the congregation of a small amount of vapor
Into water-ring vacuum pump assembly, the sour water condensed in tail gas is collected in waste water tank, pumps out battery limit (BL) to water by waste water conveying
Processing center centralized processing；
(4) the dilute sulfuric acid overflow for going out level-one sulphuric acid concentration slot enters second level sulphuric acid concentration slot, steams under higher vacuum degree
It sends out, sulfuric acid is heated by second level sulfuric acid heater in slot, and sulfuric acid is finally concentrated into technique concentration 83%~88% in slot, is concentrated
Sulfuric acid overflow goes out second level sulphuric acid concentration slot, is introduced into sour acid cooler and is cooled down by charging dilute sulfuric acid, among the concentrated sulfuric acid
Slot returns to the water in resolving hydrochloric acid tower cycling extraction dilute hydrochloric acid by concentrated sulfuric acid reflux pump；
(5) vapor that second level sulphuric acid concentration slot evaporates successively enters two-stage scrubber and second level water vapor condenser is cold
But to technological temperature, tail gas after cooling enters water-ring vacuum pump assembly, and on-condensible gas is discharged through vacuum pump assembly；Steam condensation
Water, condensation dilute sulfuric acid collect in waste water tank, by waste water conveying pump out battery limit (BL) to water treatment centers focus on.
Level-one sulfuric acid heater makees heat source using low-pressure saturated steam, and second level sulfuric acid heater is made using low-pressure saturated steam
The steam condensate (SC) of heat source, level-one sulfuric acid heater and the discharge of second level sulfuric acid heater, which is collected, recycles benefit in steam condensate (SC) slot
With.It is used as power source with factory common 0.6~1.0Mpa (G) low-pressure saturated steam, the concentrated cost of ton acid is effectively reduced.
The utility model hydrochloric acid full stripping technological principle is:
Using the water imbibition of the concentrated sulfuric acid, azeotropic distillation is broken in dilute hydrochloric acid, tower top obtains hydrogen chloride gas, and tower bottom obtains dilute
Sulfuric acid.The concentrated sulfuric acid is continuously added to from resolving hydrochloric acid top of tower, and the dilute hydrochloric acid from storage tank continuously adds from resolving hydrochloric acid tower middle and upper part
Enter, the concentrated sulfuric acid mixes in packing layer with hydrochloric acid, in the case where diluting concentrated sulfuric acid heat and tower reactor rise vapor collective effect, mixes molten
Liquid azeotropic distillation in packing layer, hydrogen chloride and part vapor in hydrochloric acid rise, mixed by hydrogen chloride when tower top packing layer
The most of vapor closed in gas is continuously absorbed into the concentrated sulfuric acid of tower, and the hydrogen chloride gas containing a small amount of vapor escapes tower top,
Into in hydrogen chloride gas cooler, anhydrous hydrogen chloride gas is cooled and is dried to obtain.
It has been diluted as dilute sulfuric acid when the concentrated sulfuric acid of moisture flow to resolving hydrochloric acid tower bottom in absorption hydrochloric acid, has been arranged by tower bottom
Reboiler be heated to boiling with saturated vapor, the vapor of rising in packing layer with the defluent sulfuric acid of gravity with
Hydrochloric acid mixed solution conducts heat, and the hydrogen chloride in mixed liquor is stripped out liquid under the promotion of partial pressure difference；Extra dilute sulphur in tower reactor
Sour automatic overflow goes out tower reactor, is concentrated into dilute sulfuric acid vacuum concentration system.
Its technological principle of vacuum concentration technique for dilute sulphuric acid is:
Utilize H in sulfuric acid solution under adiabatic flash and identical temperature2O and H2SO4Different vapour pressures, steams in sulfuric acid
Water and improve the concentration of sulfuric acid；The process carries out under vacuum conditions, is mainly manifested in and greatly reduces concentrated sulfuric acid solution
Boiling point, meanwhile, it, in this way can be maximum using staged vacuum concentration technology according to the difference of dilute sulfuric acid various concentration boiling temperature
Degree reduces requirement of the concentration technology to heating vapor (steam) temperature and process equipment material；And make full use of back segment high temperature gelled acid
Waste heat, to greatest extent save heating steam consumption；It is provided for vacuum concentration technique for dilute sulphuric acid device long period continuous work
Technical guarantee.
The utility model and Calcium Chloride Method complete solution analysis technics comparing save 30% or more steam consumption, with variable-pressure rectification complete solution
It analyses technics comparing and saves 50% or more steam consumption；The HCl content in waste water is stably controlled at≤0.3%, waste water simultaneously
It manages at low cost.
Claims (7)
1. the device that a kind of continuity method hydrochloric acid full stripping produces hydrogen chloride gas, it is characterised in that: described device includes mutually interconnecting
Logical resolution system and dilute sulfuric acid vacuum concentration system, the resolution system include resolving hydrochloric acid tower, level-one hydrogen chloride cooler,
Secondary chlorination hydrogen cooler, concentrated sulfuric acid drying tower, acid mist separator, the dilute sulfuric acid vacuum concentration system include dilute sulfuric acid flash distillation
Slot, acid sour heat exchanger, level-one sulphuric acid concentration slot, second level sulphuric acid concentration slot, first grade scrubber, level-one water vapor condenser, second level
Scrubbing tower, second level water vapor condenser, waste water tank, concentrated sulfuric acid medial launder, the resolving hydrochloric acid tower bottom boil again with dilute sulfuric acid
Device, dilute sulfuric acid flash tank are connected, and resolving hydrochloric acid top of tower is connected with concentrated sulfuric acid medial launder；Resolving hydrochloric acid column overhead sequentially with
Level-one hydrogen chloride cooler, secondary chlorination hydrogen cooler, concentrated sulfuric acid drying tower, acid mist separator are connected, the level-one chlorination
Hydrogen cooler, secondary chlorination hydrogen cooler are connected in the middle part of resolving hydrochloric acid tower respectively again；
The dilute sulfuric acid flash tank is connected by dilute sulphuric acid delivery pump with sour heat exchanger；The sour heat exchanger of acid and level-one sulphur
Sour thickener is connected, and the level-one sulphuric acid concentration slot is connected with second level sulphuric acid concentration slot, the second level sulphuric acid concentration slot with
Sour heat exchanger is connected；The level-one sulphuric acid concentration slot is connected with first grade scrubber, the first grade scrubber and level-one water
Vapour condenser is connected, and the second level sulphuric acid concentration slot is connected with secondary scrubber, the secondary scrubber and second level water
Vapour condenser is connected, the level-one water vapor condenser, second level water vapor condenser respectively with water-ring vacuum pump assembly phase
Connection；The sour heat exchanger of acid is also connected with concentrated sulfuric acid medial launder.
2. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: described one
Grade water vapor condenser, second level water vapor condenser are connected with waste water tank respectively, and the waste water tank is conveyed by waste water
Pump is connected with the water treatment centers outside battery limit (BL).
3. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: described dense
Sulfuric acid medial launder is connected by concentrated sulfuric acid reflux pump with resolving hydrochloric acid tower.
4. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: level-one sulphur
The level-one sulfuric acid heater of sour thickener is connected with the first steam distribution platform, the second level sulfuric acid heater of second level sulphuric acid concentration slot
It is connected with the second steam distribution platform；The level-one sulfuric acid heater, second level sulfuric acid heater respectively with steam condensate (SC) slot phase
Connection.
5. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: dilute sulfuric acid
Reboiler is connected with the first steam distribution platform, steam condensate (SC) slot respectively.
6. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: described dense
Sulfuric acid drying tower bottom is connected by concentrated sulfuric acid circulating pump with concentrated sulfuric acid drying tower top, concentrated sulfuric acid drying tower top and 98%
Sulfuric acid supplemental tank is connected.
7. continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas according to claim 1, it is characterised in that: described one
It is respectively equipped with multiple enriched chambers in grade sulphuric acid concentration slot, second level sulphuric acid concentration, is equipped with partition between adjacent enriched chamber.
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| CN201820719556.XU CN208218404U (en) | 2018-05-15 | 2018-05-15 | A kind of continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas |
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| CN201820719556.XU CN208218404U (en) | 2018-05-15 | 2018-05-15 | A kind of continuity method hydrochloric acid full stripping produces the device of hydrogen chloride gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383085A (en) * | 2018-05-15 | 2018-08-10 | 杭州东日节能技术有限公司 | A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas |
| CN109573950A (en) * | 2019-01-31 | 2019-04-05 | 内蒙古通威高纯晶硅有限公司 | A kind of Analytic Tower hydrogen chloride recovery system and technique |
| CN109626328A (en) * | 2018-12-13 | 2019-04-16 | 谢子豪 | A kind of portable chlorination apparatus for forming hydrogen |
| CN110407173A (en) * | 2019-07-04 | 2019-11-05 | 南通星球石墨设备有限公司 | A kind of waste acid treatment system and the method using system processing spent acid |
| CN114452668A (en) * | 2022-02-28 | 2022-05-10 | 中船(邯郸)派瑞特种气体股份有限公司 | Device for preparing hydrogen chloride by resolving hydrochloric acid and method for preparing hydrogen chloride by device |
-
2018
- 2018-05-15 CN CN201820719556.XU patent/CN208218404U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383085A (en) * | 2018-05-15 | 2018-08-10 | 杭州东日节能技术有限公司 | A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas |
| CN108383085B (en) * | 2018-05-15 | 2023-05-26 | 杭州东日节能技术有限公司 | Device and method for preparing hydrogen chloride gas by full-resolution of hydrochloric acid by continuous method |
| CN109626328A (en) * | 2018-12-13 | 2019-04-16 | 谢子豪 | A kind of portable chlorination apparatus for forming hydrogen |
| CN109626328B (en) * | 2018-12-13 | 2024-02-06 | 浙江瑞亨电子材料有限公司 | Portable hydrogen chloride generating device |
| CN109573950A (en) * | 2019-01-31 | 2019-04-05 | 内蒙古通威高纯晶硅有限公司 | A kind of Analytic Tower hydrogen chloride recovery system and technique |
| CN110407173A (en) * | 2019-07-04 | 2019-11-05 | 南通星球石墨设备有限公司 | A kind of waste acid treatment system and the method using system processing spent acid |
| CN110407173B (en) * | 2019-07-04 | 2023-06-30 | 南通星球石墨股份有限公司 | Waste acid treatment system and method for treating waste acid by using same |
| CN114452668A (en) * | 2022-02-28 | 2022-05-10 | 中船(邯郸)派瑞特种气体股份有限公司 | Device for preparing hydrogen chloride by resolving hydrochloric acid and method for preparing hydrogen chloride by device |
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