CN207619018U - A kind of liquid hydrogen fluoride absorption plant - Google Patents
A kind of liquid hydrogen fluoride absorption plant Download PDFInfo
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- CN207619018U CN207619018U CN201721534992.1U CN201721534992U CN207619018U CN 207619018 U CN207619018 U CN 207619018U CN 201721534992 U CN201721534992 U CN 201721534992U CN 207619018 U CN207619018 U CN 207619018U
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- hydrogen fluoride
- absorption tower
- absorption
- liquid hydrogen
- tower
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Abstract
The utility model is related to a kind of absorption plant of pure hydrogen fluoride more particularly to a kind of liquid hydrogen fluoride absorption plants, including vapourizing unit, separator and absorption tower apparatus；The vapourizing unit is connected to by valve with separator, for vaporizing liquid hydrogen fluoride to form hydrogen fluoride gas；The top of the separator is connected to tower apparatus is absorbed, for detaching hydrogen fluoride gas progress gas-liquid again；The absorption tower apparatus is connected for three-level absorption tower, for absorbing hydrogen fluoride gas.The utility model has the following advantages that：1, liquid hydrogen fluoride is absorbed in absorption tower using pure water, a large amount of hydrofluoric acid can be generated, continuation recycles in the industrial production, has not only purified air in this way, and ensure that the safe and complete absorption of hydrofluoric acid, it is to have reached the effect of killing two birds with one stone.2, production cost has been saved, has ensured that air safety, safety easy to operate improve enterprise work environment.
Description
Technical field
The utility model is related to a kind of absorption plant of pure hydrogen fluoride, especially a kind of absorption plant of liquid hydrogen fluoride.
Background technology
Hydrogen fluoride (chemical formula：HF be) a kind of extremely strong corrosive agent, there is severe toxicity, physics and chemistry in nature, hydrogen fluoride is colourless
Gas, content is more than the taste that 3ppm just will produce stimulation in air.Since hydrofluoric acid can penetrate skin and mucosa, respiratory tract
And gastrointestinal tract, so will produce high risks to health.
The dielectric constant of liquid hydrogen fluoride is very high, is a kind of excellent solvent, can dissolve many inorganic and organic compound,
It is industrial important chemical products.Many physicochemical properties of liquid hydrogen fluoride with water phase seemingly, be polar molecule and can oneself from
Sonization, it is the fine solvent of many ionic crystalline compounds.Therefore, in chemical industry production, hydrogen fluoride frequently uses,
The problem of absorption to hydrogen fluoride is exactly the most important thing, careless slightly hydrogen fluoride, which is discharged into air, not only causes environmental pollution
Also very big hidden danger can be brought to the health of worker, therefore it is the major issue that part is benefited the nation and the people to fully absorb hydrogen fluoride.
Currently, factory's generally use single cycle water washing tank is absorbed, but such absorption processing mode cannot be thoroughly complete
Absorption hydrogen fluoride, and the consumption of water is very big, increases the production cost of enterprise.In order to preferably absorb the fluorination of liquid
Hydrogen saves production cost, ensures air safety, improves enterprise work environment, therefore design and the absorption of research and development liquid hydrogen fluoride
Device is necessary.
Invention content
The purpose of this utility model is to solve problems of the prior art, provide it is a kind of it is at low cost, absorb thoroughly, behaviour
Make simple and convenient and safe and reliable liquid hydrogen fluoride absorption plant.
To achieve the goals above, the utility model adopts the following technical solution：A kind of liquid hydrogen fluoride absorption plant, packet
It includes vapourizing unit, separator and absorbs tower apparatus；The vapourizing unit is connected to by valve with separator, is used for liquid
Hydrogen fluoride vaporizes to form hydrogen fluoride gas；The top of the separator is connected to tower apparatus is absorbed, and is used for hydrogen fluoride gas
Gas-liquid is carried out to detach again；The absorption tower apparatus is connected for three-level absorption tower, for absorbing hydrogen fluoride gas.
Preferably, further include waste collecting device, the waste collecting device is connected to the bottom end of separator, for receiving
The liquid hydrogen fluoride that collection separator is isolated.
Preferably, the vapourizing unit includes the electric heating for containing the metal can of liquid hydrogen fluoride and being placed in below metal can
Plate；One side end of the metal can is connected to by valve with separator, and the connection end is close to the bottom of separator.
Preferably, the separator is heating and separating device, is internally provided with the pipe fitting of heat supply water flowing, water inlet is set
It is placed in the side bottom end of pipe fitting, water outlet is set to the side top of pipe fitting；Top is connected by valve, pipeline with tower apparatus is absorbed
It is logical.
Preferably, the absorption tower apparatus includes the first grade absorption tower being sequentially connected in series, two-level absorption tower and exhaust gas tower；Institute
It states first grade absorption tower, be loaded with pure water in two-level absorption tower, calcium sulphate soln or sodium hydroxide solution are loaded in exhaust gas tower.
The water of absorption is pure water, and the hydrofluoric acid of electron level can be gone out by the hydrogen fluoride liquid production of technical grade, economical and practical；Multistage absorption and
Tail gas carries out absorption processing using calcium sulphate soln or sodium hydroxide solution spray equipment, and yield improves and environmental-friendly.
Preferably, the top of the waste collecting device is connected to by valve, pipeline with exhaust gas tower.
Preferably, on the connecting pipe of separator and first grade absorption tower, the company of first grade absorption tower and two-level absorption tower
Anti-suck valve is both provided on threading a pipe.Hydrogen fluoride after anti-devaporation is absorbed generation negative pressure and siphon is caused to flow back.
Preferably, the pipeline gos deep into pure water hereinafter, and several small spray ports are arranged in the port of pipeline.Fluorination can be increased
The contact strength of hydrogen and water improves efficiency.
Vapourizing unit is first used, the high-purity hydrogen fluoride of liquid in metal can is vaporized, the hydrogen fluoride not vaporized fully passes through P
P pipelines are recovered in the waste collecting device plastic barrel of lower section, and gaseous hydrogen fluoride, which enters in the absorption towers No.1 PP, to be absorbed
（About absorb 90%）, not absorbent hydrogen fluoride gas enter concatenated No. two absorption towers PP, carry out double absorption（About inhale
Receive 10%）, last a small amount of remaining exhaust gas, into the exhaust gas tower for being loaded with calcium sulphate soln or sodium hydroxide solution spray equipment
In handled, finally reach the effect of the pure hydrogen fluoride of absorbed intact liquid.
The utility model compared with prior art, has the following advantages that：
1, liquid hydrogen fluoride is absorbed in absorption tower using pure water, can generate a large amount of hydrofluoric acid, continue raw in industry
It is recycled in production, has not only purified air in this way, but also ensure that the safe and complete absorption of hydrofluoric acid, be to reach
The effect of killing two birds with one stone.
2, production cost has been saved, has ensured that air safety, safety easy to operate improve enterprise work environment.
Description of the drawings
Fig. 1 is the utility model embodiment structural schematic diagram；
In figure, 1, electric hot plate 2, metal can 3, valve 4, outlet valve 5, heating and separating device 6, valve
7, water inlet valve 8, filler valve 9, anti-suck valve 10, first grade absorption tower 11, filler valve 12, anti-
Reverse suction valve 13, two-level absorption tower 14, waste gas absorption tower 15, small spray port 16, hydrofluoric acid leakage fluid dram valve 17,
Hydrofluoric acid leakage fluid dram valve 18, waste liquid ventilation mouth valve 19, waste liquid collecting box 20, hydrofluoric acid leakage fluid dram valve 21,
Valve 22, filler valve.
Specific implementation mode
It should be noted that in the present embodiment, " bottom end, top " be with reference to the accompanying drawings in retouching of carrying out of position relationship
It states, is not limitations of the present invention.
1 pair of the utility model is further described below in conjunction with the accompanying drawings：As shown in Figure 1, a kind of liquid hydrogen fluoride absorbs dress
It sets, including vapourizing unit, separator, waste liquid collecting box and absorption tower apparatus；The vapourizing unit is used for liquid hydrogen fluoride
Vaporization forms hydrogen fluoride gas, including the electric hot plate 1 for containing the metal can 2 of liquid hydrogen fluoride and being placed in below metal can；It is described
One side end of metal can 2 is connected to by valve 3 with separator, and the connection end is close to the bottom of separator；Described point
It is heating and separating device from device, is internally provided with the pipe fitting of heat supply water flowing, water inlet is set to the side bottom end of pipe fitting, goes out
The mouth of a river is set to the side top of pipe fitting；Top is connected to by valve 6, pipeline with first grade absorption tower；The absorption tower apparatus is
Three-level absorption tower is connected, including first grade absorption tower, two-level absorption tower and the waste gas absorption tower being sequentially connected in series；In the first order absorption
It is loaded with pure water in tower, two-level absorption tower, calcium sulphate soln or sodium hydroxide solution are loaded in waste gas absorption tower, is being heated
It is both provided on the connecting pipe of separator and first grade absorption tower, on the connecting pipe of first grade absorption tower and two-level absorption tower anti-
Reverse suction valve 9 and 12, hydrogen fluoride after anti-devaporation, which is absorbed, to be generated negative pressure siphon is caused to flow back, pipeline go deep into pure water hereinafter,
And a large amount of small spray ports 15 are set in the port of pipeline；The bottom end that the waste liquid collecting box passes through valve 21 and heating and separating device
Connection, the liquid hydrogen fluoride isolated for collecting separator are additionally provided with filler valve on the top of waste liquid collecting box
22 and waste liquid ventilation mouth valve 18, waste liquid ventilation mouth valve 18 be connected to exhaust gas tower by pipeline.
In addition to the metal can for holding liquid-fluorination hydrogen, other devices, pipeline, valve all use the hydrofluoric acid resistants such as PP or PTEF
The material of corrosion；Liquid-fluorination hydrogen metal can installation site, which need to be higher than, absorbs tower apparatus liquid level；Waste liquid respiratory box, first order absorption
Pipe end in tower, two-level absorption tower must in liquid level hereinafter, the admission line port of waste gas absorption tower must liquid level with
On.
Electric hot plate 1 heats top hydrogen fluoride metal can 2, and the liquid hydrogen fluoride in metal can 2 vaporizes to form hydrogen fluoride gas,
Hydrogen fluoride gas controls rate of release by the original-pack valve 3 of metal can, and gas carries out gas-liquid separation by heating and separating device 5,
Liquid is discharged by valve 21 in waste liquid collecting box 19, and gas passes through in valve 6 to first grade absorption tower 10, heating and separating device 5
By water inlet valve 7 into high-temperature water, outlet valve 4 goes out water at low temperature and forms simple heat exchange.After gas enters first grade absorption tower 10
Enter water phase by a large amount of small spray ports 15 and largely dissolve, fail dissolving enters two-level absorption tower 13 by permeability cell
In；The same first order absorption of two level principle of absorption, not absorbent few hydrogen fluoride gas enter in waste gas absorption tower 14, waste gas absorption
Liquid is that can neutralize solution sodium hydroxide of hydrogen fluoride gas etc. in tower, absorbs hydrogen fluoride gas by spraying and filling out ball mode.
Wherein 22,8,11 be filler valve, and 16,17,20 be hydrofluoric acid leakage fluid dram valve, and 18 be waste liquid ventilation mouth valve, and 9,12 are
Anti-suck valve.
Workflow：First plus the pipe end of water submerged waste liquid collecting box, first grade absorption tower and two-level absorption tower, it and closes
Close anti-suck valve 9 and 12, heating holds the copper tank of liquid hydrogen fluoride, have in hydrogen fluoride vaporization copper tank open after air pressure valve 3,
21 and waste liquid ventilation mouth valve 18, open waste gas absorption tower；When liquid-fluorination hydrogen unboiled in pipeline is less, valve is opened
6, valve 21 is closed, the hot and cold water valve opened in heating and separating device exchanges heat, and periodically arranges and is accumulated in heating and separating device
Unboiled hydrogen fluoride；System starts to absorb hydrogen fluoride at this time, can control hydrogen fluoride rate of release by valve 3 and absorb speed
Degree.Equipment is out of service, first stops heating, closes valve 3, is then shut off valve 6, water inlet valve 7, outlet valve 4, beats
Anti-suck valve 9,12 and valve 21 are opened, waste gas absorption tower 14 is finally closed.The high pure electronic stage hydrofluoric acid produced can be by hydrogen
It draws and uses at fluoric acid leakage fluid dram valve 16,17, useless hydrofluoric acid draws regular processing by hydrofluoric acid leakage fluid dram valve 20.Exhaust gas
Absorption tower regularly replaces or addition plus sodium hydroxide etc. neutralize hydrofluoric acid material.
Above-described embodiment is not constitute limitations of the present invention to the explanation of the utility model.Consider actual production,
Absorption tower and its corresponding pipeline are not limited to that PP or PTEF materials, actual production absorption tower quantity and its pipeline size is used to be not limited to this
Embodiment.
Claims (8)
1. a kind of liquid hydrogen fluoride absorption plant, it is characterised in that：Including vapourizing unit, separator and absorb tower apparatus；Institute
It states vapourizing unit to be connected to separator by valve, for vaporizing liquid hydrogen fluoride to form hydrogen fluoride gas；The separation
The top of device is connected to tower apparatus is absorbed, for detaching hydrogen fluoride gas progress gas-liquid again；The absorption tower apparatus is three
Grade absorption tower series connection, for absorbing hydrogen fluoride gas.
2. liquid hydrogen fluoride absorption plant according to claim 1, it is characterised in that：Further include waste collecting device, institute
It states waste collecting device to be connected to the bottom end of separator, the liquid hydrogen fluoride isolated for collecting separator.
3. liquid hydrogen fluoride absorption plant according to claim 1 or 2, it is characterised in that：The vapourizing unit includes containing
The electric hot plate for filling the metal can of liquid hydrogen fluoride and being placed in below metal can；One side end of the metal can is by valve and divides
It is connected to from device, the connection end is close to the bottom of separator.
4. liquid hydrogen fluoride absorption plant according to claim 2, it is characterised in that：The separator is that heating detaches
Device is internally provided with the pipe fitting of heat supply water flowing, and water inlet is set to the side bottom end of pipe fitting, and water outlet is set to pipe fitting
Side top；Top is connected to by valve, pipeline with tower apparatus is absorbed.
5. liquid hydrogen fluoride absorption plant according to claim 2, it is characterised in that：The absorption tower apparatus includes successively
Concatenated first grade absorption tower, two-level absorption tower and exhaust gas tower；It is loaded with pure water in the first grade absorption tower, two-level absorption tower,
Calcium sulphate soln or sodium hydroxide solution are loaded in exhaust gas tower.
6. liquid hydrogen fluoride absorption plant according to claim 5, it is characterised in that：The top of the waste collecting device
It is connected to exhaust gas tower by valve, pipeline.
7. liquid hydrogen fluoride absorption plant according to claim 5, it is characterised in that：In separator and first grade absorption tower
Connecting pipe on, on the connecting pipe of first grade absorption tower and two-level absorption tower be both provided with anti-suck valve.
8. liquid hydrogen fluoride absorption plant according to claim 7, it is characterised in that：The pipeline go deep into pure water hereinafter,
And several small spray ports are set in the port of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534992.1U CN207619018U (en) | 2017-11-17 | 2017-11-17 | A kind of liquid hydrogen fluoride absorption plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534992.1U CN207619018U (en) | 2017-11-17 | 2017-11-17 | A kind of liquid hydrogen fluoride absorption plant |
Publications (1)
| Publication Number | Publication Date |
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| CN207619018U true CN207619018U (en) | 2018-07-17 |
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ID=62828976
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721534992.1U Active CN207619018U (en) | 2017-11-17 | 2017-11-17 | A kind of liquid hydrogen fluoride absorption plant |
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| CN (1) | CN207619018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589750A (en) * | 2019-01-04 | 2019-04-09 | 许世民 | Fluorine technique is gone in a kind of economical desulfurization of aluminium electrolytic flue |
-
2017
- 2017-11-17 CN CN201721534992.1U patent/CN207619018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589750A (en) * | 2019-01-04 | 2019-04-09 | 许世民 | Fluorine technique is gone in a kind of economical desulfurization of aluminium electrolytic flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 341000 Jiangxi Ganzhou Shuixi Nonferrous Metallurgical Base Patentee after: Ganzhou Zhanhai New Material Technology Co., Ltd. Address before: 341000 Jiangxi province Zhanggong District of Ganzhou City, west of non-ferrous metallurgical base Patentee before: Ganzhou Zhanhai Industry Trade Co.,Ltd. |
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| CP03 | Change of name, title or address |