CN108217598A - A kind of hydrofluoric acid reaction unit - Google Patents
A kind of hydrofluoric acid reaction unit Download PDFInfo
- Publication number
- CN108217598A CN108217598A CN201810179775.8A CN201810179775A CN108217598A CN 108217598 A CN108217598 A CN 108217598A CN 201810179775 A CN201810179775 A CN 201810179775A CN 108217598 A CN108217598 A CN 108217598A
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- CN
- China
- Prior art keywords
- hydrofluoric acid
- blender
- sulfuric acid
- reacting furnace
- drier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
- C01B7/192—Preparation from fluorspar
Abstract
The invention discloses a kind of hydrofluoric acid reaction units,Including sulfuric acid storage tank,Reacting furnace,Plate and frame filter press,Drier,Condenser,Rectifying column and hydrofluoric acid storage tank,Sulfuric acid storage tank is connected with sulfuric acid feed pump,Sulfuric acid feed pump upper end is connected with the sulfuric acid import on reacting furnace,Reacting furnace upper left side is equipped with fluorite feed arrangement,Hydrogen fluoride discharge port is equipped between condenser and reacting furnace,Thick hydrofluoric acid feed inlet is connected on the right side of condenser,Thick hydrofluoric acid feed pump and rectifying column,Rectifying column top is equipped with steam (vapor) outlet,Rectifying column lower end is equipped with hydrofluoric acid discharge port,Hydrofluoric acid discharge port is connected with reboiler and hydrofluoric acid storage tank,Reacting furnace bottom is connected with melt cinder outlet,Melt cinder outlet downside is connected with melt cinder discharging pump and plate and frame filter press,Sulfuric acid waste outlet and gypsum tailings outlet are provided on flame filter press,Gypsum tailings outlet downside is connected with drier.Hydrofluoric acid purity obtained by the hydrofluoric acid reaction unit is high, and byproduct is also utilized effectively.
Description
Technical field
The present invention relates to chemical products field, specifically a kind of hydrofluoric acid reaction unit.
Background technology
Hydrofluoric acid has extremely strong corrosivity, can consumingly corrode metal, glass and siliceous object.Hydrofluoric acid is also used for
Glass is etched, it can be with depiction, mark scale and word；Hydrofluoric acid has the ability of dissolving oxide, it is in aluminium and uranium
It plays an important role in purification.Semi-conductor industry removes the oxide of silicon face using it, it may be used as in oil plant
The catalyst of the alkylated reaction of iso-butane and n-butene also can during " pickling " of the oxygenate impurity for removing stainless steel surface
Use hydrofluoric acid.Hydrofluoric acid is also used for the synthesis of a variety of organic fluorocompounds, such as Teflon (polytetrafluoroethylene (PTFE)）Also freon
A kind of refrigerant.Current industrially prepared hydrofluoric acid is mostly prepared using Fluorspar Powder and sulfuric acid, but not to the waste residue after reaction
It is handled, causes the waste of resource, fluorite be easy to cause by the way of directly feeding intake and reacts insufficient and fluorite particle
Larger situation is unfavorable for the progress of reaction.
Invention content
The purpose of the present invention is to provide a kind of hydrofluoric acid reaction unit, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides following technical solution：
A kind of hydrofluoric acid reaction unit, including sulfuric acid storage tank, reacting furnace, plate and frame filter press, drier, condenser, rectifying column and
Hydrofluoric acid storage tank, the sulfuric acid storage tank are connected with sulfuric acid feed pump, sulfuric acid feed pump upper end and the sulfuric acid import phase on reacting furnace
Connection, the reacting furnace upper left side are equipped with fluorite feed arrangement, and the fluorite feed arrangement includes charging hopper and the second electricity
Machine, the output terminal of second motor are connected with swingle, and the right end of swingle is connected with bearing, and swingle is carefully right for left side
The thick cylindrical structure in side, on swingle winding be equipped with helical blade；Go out between the condenser and reacting furnace equipped with hydrogen fluoride
Material mouth, condenser right side are connected with thick hydrofluoric acid feed inlet, and thick hydrofluoric acid feed inlet is connected with thick hydrofluoric acid feed pump, thick hydrogen fluorine
Sour feed inlet is equipped with the middle and lower part of rectifying column, and rectifying column top is equipped with steam (vapor) outlet, and rectifying column lower end is equipped with hydrofluoric acid discharge port,
Hydrofluoric acid discharge port is connected with reboiler, and reboiler is connected with hydrofluoric acid storage tank；Agitating device is installed in the middle part of the reacting furnace,
Reacting furnace bottom is connected with melt cinder outlet, and melt cinder outlet downside is connected with melt cinder discharging pump, is set on the right side of the melt cinder discharging pump
There is plate and frame filter press, sulfuric acid waste outlet and gypsum tailings outlet are provided on flame filter press, gypsum tailings outlet downside connects
Drier is connected to, air-heater is installed at left and right sides of the drier, air-heater is fixed on stent, and the dry downside is equipped with
Two dry gypsum outlets, there are three blender, respectively left blender, right blender and lower blenders for the installation of drier inside.
As further embodiment of the present invention：The left blender and right blender are symmetrical along the vertical pivot of drier, and a left side is stirred
The top for mixing device and right blender is mounted on bearing, and bearing is set on drier inner wall.
As further embodiment of the present invention：The lower blender is located on the downside of drier in the middle part of inner wall.
As further embodiment of the present invention：The first motor, the output of the first motor are connected on the downside of the lower blender
End is connected with rotary shaft and rotating vane, and left blender and right blender also include rotary shaft and rotating vane, on lower blender
Rotating vane size it is identical, evenly distributed, the length of the rotating vane of left blender and right blender lower side is less than other
The rotating vane of the length of rotating vane, left blender and right blender lower side and the top side rotating vane on lower blender
It is intersecting.
As further embodiment of the present invention：The condenser is internally provided with U-typed pipeline.
As further embodiment of the present invention：Using welding between the stent and drier.
As further embodiment of the present invention：The side wall of the reacting furnace is equipped with form.
As further scheme of the invention：The outer wall of first motor and the second motor is equipped with spongy layer.
Compared with prior art, the beneficial effects of the invention are as follows：The hydrofluoric acid reaction unit is reasonable in design, fluorite and
Sulfuric acid can fully react in reacting furnace, and melt cinder part is further detached by plate and frame filter press, and the solid after separation passes through
Drier is dried, and dried gypsum can be used for plastering and cement additire, and the sulfuric acid waste after separation can be with
Recycle so that the added value higher of reaction, hydrogen fluoride gas after reaction by condense rectifying can obtain it is purer
Hydrofluoric acid.
Description of the drawings
Fig. 1 is a kind of structure diagram of hydrofluoric acid reaction unit；
Fig. 2 is a kind of structure diagram of drier in hydrofluoric acid reaction unit；
Fig. 3 is a kind of structure diagram of fluorite feed arrangement in hydrofluoric acid reaction unit；
In figure：1- sulfuric acid storage tanks；2- reacting furnaces；3- plate and frame filter press；4- driers；5- condensers；6- rectifying columns；7- hydrofluoric acid
Storage tank；8- sulfuric acid feed pumps；9- sulfuric acid imports；10- fluorite feed arrangements；11- agitating devices；12- melt cinders export；13- melt cinders
Discharging pump；14- sulfuric acid wastes export；15- gypsum tailings exports；16- hydrogen fluoride discharge ports；The thick hydrofluoric acid feed inlets of 17-；18- is thick
Hydrofluoric acid feed pump；19- steam (vapor) outlets；20- hydrofluoric acid discharge ports；21- air-heaters；22- stents；The left blenders of 23-；24- is right
Blender；Blender under 25-；26- dry gypsums export；27- bearings；The first motors of 28-；29- rotary shafts；30- rotating vanes；
The second motors of 31-；32- charging hoppers；33- swingles；34- helical blades.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-3, in the embodiment of the present invention, a kind of hydrofluoric acid reaction unit, including sulfuric acid storage tank 1, reacting furnace 2,
Plate and frame filter press 3, drier 4, condenser 5, rectifying column 6 and hydrofluoric acid storage tank 7, the sulfuric acid storage tank 1 are connected with sulfuric acid charging
Pump 8,8 upper end of sulfuric acid feed pump is connected with the sulfuric acid import 9 on reacting furnace 2, and the side wall of the reacting furnace 2 is equipped with form,
2 upper left side of reacting furnace is equipped with fluorite feed arrangement 10, and the fluorite feed arrangement 10 includes 32 and second motor of charging hopper
31, the output terminal of second motor 31 is connected with swingle 33, and the right end of swingle 33 is connected with bearing, and swingle 33 is
The thick cylindrical structure in the thin right side in left side, on swingle 33 winding be equipped with helical blade 34；The condenser 5 and reacting furnace 2 it
Between be equipped with hydrogen fluoride discharge port 16, condenser 5 is internally provided with U-typed pipeline, and 5 right side of condenser is connected with thick hydrofluoric acid feed inlet
17, thick hydrofluoric acid feed inlet 17 is connected with thick hydrofluoric acid feed pump 18, under thick hydrofluoric acid feed inlet 17 is equipped in rectifying column 6
Portion, 6 top of rectifying column are equipped with steam (vapor) outlet 19, and 6 lower end of rectifying column is equipped with hydrofluoric acid discharge port 20, and hydrofluoric acid discharge port 20 connects
There is reboiler, reboiler is connected with hydrofluoric acid storage tank 7.
2 middle part of reacting furnace is equipped with agitating device 11, and 2 bottom of reacting furnace is connected with melt cinder outlet 12, and melt cinder goes out
Mouthfuls 12 downsides are connected with melt cinder discharging pump 13, and 13 right side of melt cinder discharging pump is equipped with plate and frame filter press 3, on flame filter press 3
Sulfuric acid waste outlet 14 and gypsum tailings outlet 15 are provided with, 15 downside of gypsum tailings outlet is connected with drier 4, the drying
4 left and right sides of device is equipped with air-heater 21, and air-heater 21 is fixed on stent 22, and welding is used between stent 22 and drier 4,
4 downside of the drying sets that there are two dry gypsums to export 26, and there are three blender, respectively left blenders for 4 inside installation of drier
23rd, right blender 24 and lower blender 25, the left blender 23 and right blender 24 are symmetrical along the vertical pivot of drier 4, and a left side is stirred
The top for mixing device 23 and right blender 24 is mounted on bearing 27, and bearing 27 is set on 4 inner wall of drier, the lower blender 25
In the middle part of 4 downside inner wall of drier, lower 25 downside of blender is connected with the first motor 28, the first motor 28 and the second motor 31
Outer wall be equipped with spongy layer, the output terminal of the first motor 28 is connected with rotary shaft 29 and rotating vane 30, left 23 He of blender
Right blender 24 also includes rotary shaft 29 and rotating vane 30, and 30 size of rotating vane on lower blender 25 is identical, uniformly arranges
Row, the length of the rotating vane 30 of 24 lower side of left blender 23 and right blender are less than the length of other rotating vanes 30, left
The rotating vane 30 of 24 lower side of blender 23 and right blender intersects with the top side rotating vane 30 on lower blender 25.
The operation principle of the present invention：Fluorite is added in into reacting furnace 2 by fluorite feed arrangement 10, manually or mechanically from adding
Fluorite is put into funnel 32, the second motor 31 drives swingle 33 to rotate, and helical blade 34 rotates with, so that fluorite
It moves from left to right, since the thin right side in 33 left side of swingle is thick, fluorite can be further during moving from left to right
It pulverizes so that fluorite particle smaller extracts sulfuric acid by sulfuric acid feed pump 8 from sulfuric acid storage tank 1, and sulfuric acid is at sulfuric acid import 9
Into inside reacting furnace 2, fluorite and sulfuric acid are in 2 internal-response of reacting furnace, and agitating device 11 can accelerate reaction speed, after reaction
The hydrogen fluoride gas of generation, which is entered by hydrogen fluoride discharge port 16 in condenser 5, to be condensed, condensed to contain the thick of certain impurity
Hydrofluoric acid enters rectifying column 6 under the action of thick hydrofluoric acid feed pump, from thick hydrofluoric acid feed inlet 17, and the impurity after fraction is from steaming
Vapor outlet 19 is discharged, and pure hydrofluoric acid is flowed out from hydrofluoric acid discharge port 20, and then flows into hydrofluoric acid storage tank；It is anti-in reacting furnace 2
Melt cinder enters plate and frame filter press 3, the liquid after press filtration from 12 discharge of melt cinder outlet under the action of melt cinder discharging pump 13 after answering
Body, that is, sulfuric acid waste is recycled, and the solid after press filtration enters drying in drier 4, and air-heater 21 plays dry
Effect, the output terminal of the first motor 28 are connected with rotary shaft 29, and rotary shaft 29 drives rotating vane 30 to move, due to left blender
23 and the rotating vane 30 of 24 lower side of right blender intersect with the top side rotating vane 30 on lower blender 25, lower blender
Rotating vane 30 on 25 can drive left blender 23 and right blender 24 to be rotated, so that three blenders
It stirs simultaneously, rate of drying is faster.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of hydrofluoric acid reaction unit, including sulfuric acid storage tank（1）, reacting furnace（2）, plate and frame filter press（3）, drier（4）, it is cold
Condenser（5）, rectifying column（6）With hydrofluoric acid storage tank（7）, which is characterized in that the sulfuric acid storage tank（1）It is connected with sulfuric acid feed pump
（8）, sulfuric acid feed pump（8）Upper end and reacting furnace（2）On sulfuric acid import（9）It is connected, the reacting furnace（2）It installs upper left side
There is fluorite feed arrangement（10）, the fluorite feed arrangement（10）Including charging hopper（32）With the second motor（31）, described
Two motors（31）Output terminal be connected with swingle（33）, swingle（33）Right end be connected with bearing, swingle（33）For
The thick cylindrical structure in the thin right side in left side, swingle（33）Upper winding is equipped with helical blade（34）；The condenser（5）And reaction
Stove（2）Between be equipped with hydrogen fluoride discharge port（16）, condenser（5）Right side is connected with thick hydrofluoric acid feed inlet（17）, thick hydrofluoric acid
Feed inlet（17）It is connected with thick hydrofluoric acid feed pump（18）, thick hydrofluoric acid feed inlet（17）Equipped with rectifying column（6）Middle and lower part, essence
Evaporate tower（6）Top is equipped with steam (vapor) outlet（19）, rectifying column（6）Lower end is equipped with hydrofluoric acid discharge port（20）, hydrofluoric acid discharge port
（20）Reboiler is connected with, reboiler is connected with hydrofluoric acid storage tank（7）；The reacting furnace（2）Middle part is equipped with agitating device
（11）, reacting furnace（2）Bottom is connected with melt cinder outlet（12）, melt cinder outlet（12）Downside is connected with melt cinder discharging pump（13）,
The melt cinder discharging pump（13）Right side is equipped with plate and frame filter press（3）, flame filter press（3）On be provided with sulfuric acid waste outlet（14）
It is exported with gypsum tailings（15）, the gypsum tailings outlet（15）Downside is connected with drier（4）, the drier（4）The left and right sides
Air-heater is installed（21）, air-heater（21）It is fixed on stent（22）On, the drying（4）Downside set there are two dry gypsum export
（26）, drier（4）There are three blender, respectively left blenders for inside installation（23）, right blender（24）With lower blender
（25）.
A kind of 2. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the left blender（23）It is stirred with the right side
Mix device（24）Along drier（4）Vertical pivot it is symmetrical, left blender（23）With right blender（24）Top be mounted on bearing
（27）, bearing（27）Set on drier（4）On inner wall.
A kind of 3. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the lower blender（25）Positioned at dry
Dry device（4）In the middle part of the inner wall of downside.
A kind of 4. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the lower blender（25）Downside connects
It is connected to the first motor（28）, the first motor（28）Output terminal be connected with rotary shaft（29）And rotating vane（30）, left blender
（23）With right blender（24）Also include rotary shaft（29）And rotating vane（30）, lower blender（25）On rotating vane（30）
Size is identical, evenly distributed, left blender（23）With right blender（24）The rotating vane of lower side（30）Length be less than its
His rotating vane（30）Length, left blender（23）With right blender（24）The rotating vane of lower side（30）With lower blender
（25）On top side rotating vane（30）It is intersecting.
A kind of 5. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the condenser（5）It is internally provided with
U-typed pipeline.
A kind of 6. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the stent（22）With drier
（4）Between using welding.
A kind of 7. hydrofluoric acid reaction unit according to claim 1, which is characterized in that the reacting furnace（2）Side wall peace
Equipped with form.
A kind of 8. hydrofluoric acid reaction unit according to claim 1, which is characterized in that first motor（28）With second
Motor（31）Outer wall be equipped with spongy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179775.8A CN108217598A (en) | 2018-03-05 | 2018-03-05 | A kind of hydrofluoric acid reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179775.8A CN108217598A (en) | 2018-03-05 | 2018-03-05 | A kind of hydrofluoric acid reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108217598A true CN108217598A (en) | 2018-06-29 |
Family
ID=62666910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810179775.8A Withdrawn CN108217598A (en) | 2018-03-05 | 2018-03-05 | A kind of hydrofluoric acid reaction unit |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609586A (en) * | 2018-08-08 | 2018-10-02 | 宣城亨泰电子化学材料有限公司 | A kind of reagent stage hydrofluoric acid producing device |
| CN108975275A (en) * | 2018-10-17 | 2018-12-11 | 杨松 | It is a kind of to prepare hydrogen fluoride reaction device |
| CN109248642A (en) * | 2018-10-17 | 2019-01-22 | 杨松 | A kind of application method preparing hydrogen fluoride stratum granulosum moving bed filter |
| CN112919418A (en) * | 2021-02-20 | 2021-06-08 | 福建中欣氟材高宝科技有限公司 | Preparation method of hydrofluoric acid |
| CN113244873A (en) * | 2021-07-15 | 2021-08-13 | 联仕(昆山)化学材料有限公司 | Electronic-grade hydrofluoric acid preparation device |
-
2018
- 2018-03-05 CN CN201810179775.8A patent/CN108217598A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609586A (en) * | 2018-08-08 | 2018-10-02 | 宣城亨泰电子化学材料有限公司 | A kind of reagent stage hydrofluoric acid producing device |
| CN108609586B (en) * | 2018-08-08 | 2021-11-02 | 宣城亨泰电子化学材料有限公司 | Reagent-grade hydrofluoric acid manufacturing device |
| CN108975275A (en) * | 2018-10-17 | 2018-12-11 | 杨松 | It is a kind of to prepare hydrogen fluoride reaction device |
| CN109248642A (en) * | 2018-10-17 | 2019-01-22 | 杨松 | A kind of application method preparing hydrogen fluoride stratum granulosum moving bed filter |
| CN109248642B (en) * | 2018-10-17 | 2020-07-28 | 杨松 | Use method of moving bed filter for preparing hydrogen fluoride particle layer |
| CN112919418A (en) * | 2021-02-20 | 2021-06-08 | 福建中欣氟材高宝科技有限公司 | Preparation method of hydrofluoric acid |
| CN113244873A (en) * | 2021-07-15 | 2021-08-13 | 联仕(昆山)化学材料有限公司 | Electronic-grade hydrofluoric acid preparation device |
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Application publication date: 20180629 |
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