CN106406256A - Full-automatic hydrofluoric acid production system - Google Patents
Full-automatic hydrofluoric acid production system Download PDFInfo
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- CN106406256A CN106406256A CN201610842387.4A CN201610842387A CN106406256A CN 106406256 A CN106406256 A CN 106406256A CN 201610842387 A CN201610842387 A CN 201610842387A CN 106406256 A CN106406256 A CN 106406256A
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- Prior art keywords
- hydrofluoric acid
- hydrogen fluoride
- gas
- tank
- acid
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000007791 liquid phase Substances 0.000 claims description 24
- 239000001257 hydrogen Substances 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 238000003682 fluorination reaction Methods 0.000 claims description 17
- 239000012071 phase Substances 0.000 claims description 17
- 238000004821 distillation Methods 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000002309 gasification Methods 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 229960002050 hydrofluoric acid Drugs 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 239000011737 fluorine Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 229910052756 noble gas Inorganic materials 0.000 description 4
- 150000002835 noble gases Chemical class 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 fluorine alkyl halide Hydrocarbon Chemical class 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
The invention discloses a full-automatic hydrofluoric acid production system, which is characterized by comprising a tank truck, a raw material storage tank, a rectification system, an intermediate tank circulation cooling and absorption system, a tail discharge system, a PLC control system and the like. The whole production process of hydrofluoric acid is controlled by the PLC control system, wherein the rectification system comprises a preheating tower, two filtering towers arranged in a two-stage parallel manner, reaction stills and a rectifying tower; and the intermediate tank circulation cooling and absorption system comprises intermediate tanks, two-stage cooling towers, second filtering towers and a center control detection system. The full-automatic hydrofluoric acid production system adopts liquid anhydrous hydrogen fluoride for preparing hydrofluoric acid, the design is novel and reasonable, the production process is controlled by the PLC control system, the safety is high, the purity of the prepared hydrofluoric acid is high, and the practical value is high.
Description
Technical field
The present invention relates to chemical mechanical equipment technical field, more particularly to a kind of full-automatic Acid of Hydrofluoric Acid Production system.
Background technology
Anhydrous hydrogen fluoride for industrial use is a kind of broad-spectrum chemical products, outward appearance is more than the 99% of colourless fuming liquidss
Fluohydric acid., at low temperature for water white liquid, easily gasifies under decompression or high temperature, is mainly used as producing villiaumite, fluorine alkyl halide
Hydrocarbon, fluorine refrigerant, etching glass, impregnated timber and electrolysis element fluorine etc..Anhydrous hydrogen fluoride is the extremely strong material of reactivity, can be with
Various materials react, soluble in water, make Fluohydric acid..Highly purified Fluohydric acid. can as highly acid abluent, caustic,
Can configure with nitric acid, glacial acetic acid, hydrogen peroxide and ammonium hydroxide etc. and use, be mainly used in integrated circuit（IC）With ultra-large collection
Become circuit（VLSI）The cleaning of chip and corrosion, are one of key basic chemical industry materials in microelectronic industry manufacturing process,
Its purity and cleanliness factor all play a very important role to the yield rate of integrated circuit, electrical property and reliability.Therefore hydrogen fluorine
The security requirement of the preparation system of acid is extremely strict, prevents to personnel and environmental pollution, and requires prepared purer
Fluohydric acid., need to design the production system that a kind of automatic control effect is good, security performance is high.
Content of the invention
For above-mentioned technical problem, the invention provides a kind of full-automatic Acid of Hydrofluoric Acid Production system, anhydrous using liquid
Fluohydric acid gas prepares Fluohydric acid., and it is novel in design rationally, and production process is automatically controlled by PLC control system, high safety, preparation
Fluohydric acid. purity is high, and practical value is high.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows：
A kind of full-automatic Acid of Hydrofluoric Acid Production system, using liquid phase anhydrous hydrogen fluoride produce Fluohydric acid. it is characterised in that：Including groove tank
Car, raw material storage tank, standby raw material storage tank, distillation system, medial launder circulating cooling absorption system, tail heat-extraction system, finished pot, finished product
Pump, filter and PLC control system, the whole production process of Fluohydric acid. by PLC control system control, wherein,
Described groove tank car is provided with water and rushes vacuum pump apparatus, and the in-car liquid phase anhydrous hydrogen fluoride of groove tank is unloaded by inert gas pressure
Mode transfer to raw material storage tank, in the arm of unloading of groove tank car, to rush vacuum pump apparatus by water clear for the liquid phase anhydrous hydrogen fluoride of residual
Wash；The outside of described raw material storage tank arranges a POP, with inert gas pressure for conveying power by liquid phase anhydrous hydrogen fluoride
Enter distillation system through conveyance conduit；
Described distillation system includes pre-add thermal tower, some filtration tanks, reactor and rectifying column, and pre-add thermal tower is in preventing trace amount of steam mode
Heating and gasifying is carried out to liquid phase anhydrous hydrogen fluoride, sends into filtration tank after gasification and carry out single filter, obtain relatively after single filter
The liquid phase anhydrous hydrogen fluoride that pure gas phase fluorination hydrogen and part do not gasify enter in reactor, reactor added with deionized water and
Strong oxidizer, such as potassium permanganate solution, and second heating is carried out by steam, after strong oxidizer is used for precipitating oxidation of impurities
Discharge, deionized water is used for cleaning liquid phase anhydrous hydrogen fluoride, obtains more pure gas phase fluorination hydrogen after reacted kettle, complete the
Rectification, is then fed into rectifying column and carries out second rectification；
If described medial launder circulating cooling absorption system includes medial launder dry cooling tower, the second filtration tank and middle control detection means,
Medial launder is beaten by way of circulation the gas phase fluorination hydrogen after to rectification by deionized water and is absorbed, and gas phase fluorination hydrogen is dissolved in aquatic
Become Fluohydric acid., heat is taken away by liberated heat by cooling tower, filters out the granule foreign in Fluohydric acid. in the second filtration tank；
Described raw material storage tank, distillation system and medial launder circulating cooling absorption system are equipped with tail heat-extraction system, and tail heat-extraction system includes
Waste gas detector, go washing tail gas device and tail gas absorption groove, waste gas detector is used for having in detecting system leak free
Gas or unabsorbed gas phase fluorination hydrogen, go washing tail gas device to remove the tail gas of leakage, tail row system in spray-absorption mode
System will not absorb completely hydrogen fluoride gas and suck tail gas absorption groove, and after absorbing saturation, middle control detection means carries out middle control detection,
Through in control detection qualified after, the Fluohydric acid. in medial launder is squeezed into finished pot, the Fluohydric acid. in finished pot is through discharge pump and filtration
Carry out subpackage after device.
Preferably, described water rushes vacuum pump apparatus is provided with absorbing liquid concentration detection apparatus, true for the punching of periodic detection water
Absorbing liquid concentration in empty pump.
Preferably, described filtration tank is built with tetrafluoro filler.
Preferably, described filtration tank is arranged with twin-stage parallel way.
This Fluohydric acid. system is produced by PLC control, and technological process is divided into four parts：Groove tank car is to head tank, former
Batch can, to distillation system, arrives intercooling and absorbs after rectification, the middle control qualified rear medial launder of detection to finished pot, and whole process can be led to
Cross PLC screen to be operated it is also possible to be switched to manual operation, with noble gases for conveying power, be designed with tail row system simultaneously
System, can effectively play decompression protection and Environmental security effect, in process of production, gas phase fluorination hydrogen absorbs through three times, protects
Demonstrate,prove absorption efficiency, prepared Fluohydric acid. purity is higher, and production process automatic control effect is good, high safety.
Due to employing technique scheme, the present invention has the following technical effect that：The present invention adopts the anhydrous fluorine of liquid
Change hydrogen and prepare Fluohydric acid., it is novel in design rationally, and production process is automatically controlled by PLC control system, high safety, the hydrogen of preparation
Fluoric acid purity is high, and practical value is high.
Brief description
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structural representation of the present invention.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, all can be equivalent or there is similar purpose by other
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is a series of equivalent or one of similar characteristics example
?.
A kind of full-automatic Acid of Hydrofluoric Acid Production system as shown in Figure 1, produces Fluohydric acid. using liquid phase anhydrous hydrogen fluoride, including
Groove tank car 1, raw material storage tank 2, standby raw material storage tank 3, distillation system 4, medial launder circulating cooling absorption system 5, tail heat-extraction system 6,
Finished pot 7, discharge pump 8 and PLC control system, the whole production process of Fluohydric acid. is by PLC control system control it is also possible to switch
To manual operation, wherein, groove tank car 1 is provided with water and rushes vacuum pump apparatus 11, and the liquid phase anhydrous hydrogen fluoride in groove tank car 1 passes through inertia
The mode of gas pressure unloading transfers to raw material storage tank 2, controls the pressure of groove tank car to be unloaded in 0.1MPa, multiple valve every
Disconnected, in the arm of unloading of groove tank car 1, the liquid phase anhydrous hydrogen fluoride of residual rushes the cleaning of vacuum pump 11 device by water.Water rushes vacuum pump dress
Put 11 and be provided with absorbing liquid concentration detection apparatus, rush the absorbing liquid concentration in vacuum pump 11 for periodic detection water, and changed,
Absorbing liquid can be recycled as industrial stage hydrofluoric acid, and it is anhydrous that water rushes the liquid phase that vacuum pump apparatus 11 can solve the problem that in pipeline
The problem that fluohydric acid gas difficulty clears, reduces the injury to people.The outside of raw material storage tank 2 arranges a POP, with noble gases pressure
Power is that liquid phase anhydrous hydrogen fluoride is entered distillation system 4 through conveyance conduit by conveying power, and noble gases preferably employ nitrogen, raw material
Storage tank 2 is totally enclosed type.Technical grade 99% liquid phase anhydrous hydrogen fluoride is adopted as raw material, the input and output material of raw material storage tank 2 in the present invention
Can be controlled by two electromagnetic valves, signal is provided by PLC control system, raw material storage tank 2 can adopt horizontal type structure, all of method
Blue mouth is all disposed within the upper end of bedroom storage tank, can effective prevent leakage, magnetic turnover panel liquid level is all installed in the both sides of raw material storage tank 2
Meter, can monitor in real time liquid level, high level and low liquid level are processed accordingly.
As shown in figure 1, distillation system 4 includes pre-add thermal tower 41, with two filtration tanks 42 of twin-stage parallel way setting, anti-
Answer kettle 43 and rectifying column 44, pre-add thermal tower 41 carries out heating and gasifying, rectification temperature in preventing trace amount of steam mode to liquid phase anhydrous hydrogen fluoride
Degree controls at 30 DEG C about, sends into filtration tank 42 and carries out single filter, filtration tank is built with tetrafluoro filler, single filter after gasification
The purer gas phase fluorination hydrogen obtaining afterwards and the liquid phase anhydrous hydrogen fluoride partly not gasified enter reactor 43, in reactor 43
Added with deionized water and strong oxidizer, such as potassium permanganate solution etc., and second heating is carried out by steam, will above preheat
Completely liquid phase anhydrous hydrogen fluoride is not gasified for gasification, and strong oxidizer is periodically discharged after being used for precipitating oxidation of impurities, special
It is not the trivalent arsenic in Fluohydric acid., deionized water is used for cleaning liquid phase anhydrous hydrogen fluoride, obtains more pure after reacted kettle 43
Gas phase fluorination hydrogen, complete first time rectification, be then fed into rectifying column 44 and carry out second rectification.
As shown in figure 1, in the present invention, medial launder circulating cooling absorption system 5 include medial launder 51, two grade cooling towers 52,
Second filtration tank 53 and middle control detection means, medial launder 51 beats by way of circulation the gas phase fluorination after to rectification by deionized water
Hydrogen is absorbed the efficiency it is ensured that being absorbed.Gas phase fluorination hydrogen is dissolved in water generating Fluohydric acid., and liberated heat passes through two grade cooling towers
Heat is taken away by 52, filters out the granule foreign in Fluohydric acid., can be filled with superfinishing in the second filtration tank 53 in the second filtration tank 53
Thin 0.1 μm of tetrafluoro filtering material.
In the present invention, raw material storage tank 2, distillation system 4 and medial launder circulating cooling absorption system 5 are equipped with tail heat-extraction system 6,
Tail heat-extraction system 6 includes waste gas detector, goes washing tail gas device 61 and tail gas absorption groove 62, and waste gas detector is used for detecting
There are leak free gas or unabsorbed gas phase fluorination hydrogen in system, go washing tail gas device 61 to remove in spray-absorption mode
The tail gas of leakage.Reactor 43 also is provided with tail row's design, when the pressure in reactor 43 is excessive, pressure release can be carried out guarantee be
System safety.Tail heat-extraction system 6 will not absorb completely hydrogen fluoride gas and suck tail gas absorption groove 62, after absorbing saturation, middle control detection
Device carry out middle control detection, through in control detect qualified after, the Fluohydric acid. in medial launder 51 is squeezed into finished pot, the hydrogen in finished pot
Fluoric acid carries out subpackage after discharge pump 8 and filter 9, and Fluohydric acid. finished product need to be passed through filter and be filtered again, obtain ultra-clean
High-pure hydrofluoric acid finished product.
Tail heat-extraction system design in the present invention, automatization's effect is good, can farthest reduce to personnel and environment
Injury.
This Fluohydric acid. system is produced by PLC control, and technological process is divided into four parts：Groove tank car is to head tank, former
Batch can, to distillation system, arrives intercooling and absorbs after rectification, the middle control qualified rear medial launder of detection to finished pot, and whole process can be led to
Cross PLC screen to be operated it is also possible to be switched to manual operation, with noble gases for conveying power, be designed with tail row system simultaneously
System, can effectively play decompression protection and Environmental security effect, in process of production, gas phase fluorination hydrogen absorbs through three times, protects
Demonstrate,prove absorption efficiency, prepared Fluohydric acid. purity is higher, and production process automatic control effect is good, high safety.
The invention is not limited in aforesaid specific embodiment.The present invention expands to and any discloses in this manual
New feature or any new combination, and the arbitrary new method of disclosure or the step of process or any new combination.
Claims (4)
1. a kind of full-automatic Acid of Hydrofluoric Acid Production system, using liquid phase anhydrous hydrogen fluoride produce Fluohydric acid. it is characterised in that：Including groove
Tank car, raw material storage tank, standby raw material storage tank, distillation system, medial launder circulating cooling absorption system, tail heat-extraction system, finished pot, one-tenth
Product pump, filter and PLC control system, the whole production process of Fluohydric acid. by PLC control system control, wherein,
Described groove tank car is provided with water and rushes vacuum pump apparatus, and the in-car liquid phase anhydrous hydrogen fluoride of groove tank is unloaded by inert gas pressure
Mode transfer to raw material storage tank, in the arm of unloading of groove tank car, to rush vacuum pump apparatus by water clear for the liquid phase anhydrous hydrogen fluoride of residual
Wash；The outside of described raw material storage tank arranges a POP, with inert gas pressure for conveying power by liquid phase anhydrous hydrogen fluoride
Enter distillation system through conveyance conduit；
Described distillation system includes pre-add thermal tower, some filtration tanks, reactor and rectifying column, and pre-add thermal tower is in preventing trace amount of steam mode
Heating and gasifying is carried out to liquid phase anhydrous hydrogen fluoride, sends into filtration tank after gasification and carry out single filter, obtain relatively after single filter
The liquid phase anhydrous hydrogen fluoride that pure gas phase fluorination hydrogen and part do not gasify enter in reactor, reactor added with deionized water and
Strong oxidizer, and second heating is carried out by steam, strong oxidizer is discharged after being used for precipitating oxidation of impurities, and deionized water is used
In cleaning liquid phase anhydrous hydrogen fluoride, obtain more pure gas phase fluorination hydrogen after reacted kettle, complete first time rectification, then send
Enter rectifying column and carry out second rectification；
If described medial launder circulating cooling absorption system includes medial launder dry cooling tower, the second filtration tank and middle control detection means,
Medial launder is beaten by way of circulation the gas phase fluorination hydrogen after to rectification by deionized water and is absorbed, and gas phase fluorination hydrogen is dissolved in aquatic
Become Fluohydric acid., heat is taken away by liberated heat by cooling tower, filters out the granule foreign in Fluohydric acid. in the second filtration tank；
Described raw material storage tank, distillation system and medial launder circulating cooling absorption system are equipped with tail heat-extraction system, and tail heat-extraction system includes
Waste gas detector, go washing tail gas device and tail gas absorption groove, waste gas detector is used for having in detecting system leak free
Gas or unabsorbed gas phase fluorination hydrogen, go washing tail gas device to remove the tail gas of leakage, tail row system in spray-absorption mode
System will not absorb completely hydrogen fluoride gas and suck tail gas absorption groove, and after absorbing saturation, middle control detection means carries out middle control detection,
Through in control detection qualified after, the Fluohydric acid. in medial launder is squeezed into finished pot, the Fluohydric acid. in finished pot is through discharge pump and filtration
Carry out subpackage after device.
2. a kind of full-automatic Acid of Hydrofluoric Acid Production system according to claim 1 it is characterised in that：Described water rushes vacuum pump dress
Install absorbing liquid concentration detection apparatus, rush the absorbing liquid concentration in vacuum pump for periodic detection water.
3. a kind of full-automatic Acid of Hydrofluoric Acid Production system according to claim 1 it is characterised in that：Described filtration tank built with
Tetrafluoro filler.
4. a kind of full-automatic Acid of Hydrofluoric Acid Production system according to claim 1 it is characterised in that：Described filtration tank is with twin-stage
Parallel way is arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610842387.4A CN106406256B (en) | 2016-09-23 | 2016-09-23 | Full-automatic Acid of Hydrofluoric Acid Production system |
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| CN201610842387.4A CN106406256B (en) | 2016-09-23 | 2016-09-23 | Full-automatic Acid of Hydrofluoric Acid Production system |
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| CN106406256A true CN106406256A (en) | 2017-02-15 |
| CN106406256B CN106406256B (en) | 2018-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892023A (en) * | 2020-07-30 | 2020-11-06 | 甘元松 | Anti-channeling hydrogen fluoride reacting furnace |
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