CN107804869A - Chlorination furnace pressure-relief explosion-proof and exhaust treatment system - Google Patents
Chlorination furnace pressure-relief explosion-proof and exhaust treatment system Download PDFInfo
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- CN107804869A CN107804869A CN201711138086.4A CN201711138086A CN107804869A CN 107804869 A CN107804869 A CN 107804869A CN 201711138086 A CN201711138086 A CN 201711138086A CN 107804869 A CN107804869 A CN 107804869A
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- relief pipeline
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- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 67
- 238000005406 washing Methods 0.000 claims abstract description 41
- 239000010425 asbestos Substances 0.000 claims abstract description 24
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 24
- 239000000460 chlorine Substances 0.000 claims abstract description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003513 alkali Substances 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003518 caustics Substances 0.000 claims abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000002745 absorbent Effects 0.000 claims abstract description 6
- 239000002250 absorbent Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000006210 lotion Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 12
- 239000011780 sodium chloride Substances 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 239000002006 petroleum coke Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 55
- 150000003839 salts Chemical class 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910003074 TiCl4 Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 231100000572 poisoning Toxicity 0.000 description 4
- 230000000607 poisoning effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910003910 SiCl4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010129 solution processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C01B7/01—Chlorine; Hydrogen chloride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/02—Halides of titanium
- C01G23/022—Titanium tetrachloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses chlorination furnace pressure-relief explosion-proof and exhaust treatment system, including：Chlorination furnace, there is feed(raw material)inlet, chlorine inlet, chlorination reaction mixture outlet and explosion-proof relief mouth, explosion-proof relief mouth to be located at the top of chlorination furnace for it；First relief pipeline, it is connected with explosion-proof relief mouth, arrangement asbestos diaphragm in the first relief pipeline；Second relief pipeline, it is connected with the first relief pipeline below asbestos diaphragm, and pneumatic operated valve is arranged on the second relief pipeline；Unit is washed, gas exports after it has gas inlet, water lotion entrance, washing hydrochloric acid outlet and washing, and gas inlet is connected with the first relief pipeline and the second relief pipeline respectively；Caustic wash unit, it is exported with gas after liquid outlet after gas entrance, absorbent entrance, alkali cleaning after washing and alkali cleaning.Can be conveniently and timely to carrying out pressure release when the gradual increase of chlorination furnace pressure or increase suddenly using the system, the gas of discharge sequentially enters washing unit and caustic wash unit can be with qualified discharge.
Description
Technical field
The invention belongs to metallurgical and chemical technology field, specifically, the present invention relates to a kind of chlorination furnace pressure-relief explosion-proof and
Exhaust treatment system.
Background technology
Molten salt chlorination furnace is used to produce one of raw material of magnesium reduction production titanium sponge in titanium sponge industry：Thick four chlorination
Titanium.The primary raw material of chlorination reaction process is high titanium slag, petroleum coke, chlorine in chlorination furnace, wherein, high titanium slag, petroleum coke etc. are solid
Body material pours into respective feed bin, and bucket elevator is sent to through embedded scraper transporter, then is sent to respective feed bin by bucket elevator, enters
Material is continuously sent to being fed to by chlorine spray gun by fused salt surface from stokehold feed bin by screw(-type) feeder after row dispensing
Chlorine contacts in fused salt, carries out chlorination reaction in fused-salt medium at a certain temperature.
At present in Molten salt chlorination furnace production process, the material volatilized in stove can usually be deposited in stove and dust-precipitator mistake
At road, result in blockage, cause the interior generation gas of stove smoothly can not be gathered dust into postorder, cooling system, so as to cause stove pressure
Rise；If molten salt system deteriorates in stove simultaneously, fused salt viscosity increase, caused gas bubbles moment rupture is caused in stove
Pressure rises suddenly, the appearance of above-mentioned two situations, and the gas that can frequently result in Molten salt chlorination furnace is prevented from chlorination upper of furnace body
Quick-fried pressure relief opening is revealed, and contains HCl, TiCl in gas4、SiCl4、Cl2And SO2Deng pernicious gas, because gas is discharged directly to factory
In room, leakage for a long time can cause personnel's poisoning and environmentally friendly accident.
Therefore, the equipment of existing production crude titanic chloride is further improved.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of chlorination furnace pressure-relief explosion-proof and exhaust treatment system, can facilitated using the system and timely right
Chlorination furnace pressure carries out pressure release when gradually increasing or increase suddenly, the gas of discharge sequentially enters washing unit and caustic wash unit can
With qualified discharge.
In one aspect of the invention, the present invention proposes a kind of chlorination furnace pressure-relief explosion-proof and exhaust treatment system.According to
Embodiments of the invention, the system include：
Chlorination furnace, the chlorination furnace have the feed(raw material)inlet containing high titanium slag, petroleum coke and sodium chloride, chlorine inlet, chlorine
Change reactant mixture outlet and explosion-proof relief mouth, the explosion-proof relief mouth are located at the top of the chlorination furnace；
First relief pipeline, first relief pipeline are connected with the explosion-proof relief mouth, and in first relief tube
Asbestos diaphragm is disposed with road；
Second relief pipeline, second relief pipeline connect with the first relief pipeline below the asbestos diaphragm
It is logical, and it is disposed with pneumatic operated valve on second relief pipeline；
Wash unit, it is described washing unit have gas inlet, water lotion entrance, washing hydrochloric acid outlet and washing after gas go out
Mouthful, the gas inlet is connected with first relief pipeline and second relief pipeline respectively；
Caustic wash unit, after the caustic wash unit is with liquid outlet after gas entrance, absorbent entrance, alkali cleaning after washing and alkali cleaning
Gas exports, and gas entrance is connected with gas outlet after the washing after the washing.
Chlorination furnace pressure-relief explosion-proof according to embodiments of the present invention and exhaust treatment system are by using with asbestos diaphragm
First relief pipeline and the second relief pipeline with pneumatic operated valve, when chlorination furnace pressure gradually increases, in the second relief pipeline
Pneumatic operated valve automatically turn on, until furnace pressure recovers stable, and when chlorination furnace pressure rises suddenly, in the first relief pipeline
Asbestos diaphragm rupture, so as to stablize furnace pressure, while by gas discharge through explosion-proof relief mouth successively by washing and alkali
Wash, not only can effectively reclaim chlorine element therein, and resulting tail gas can be with qualified discharge, so as to avoid existing skill
Due to personnel's poisoning and environmentally friendly accident caused by the too high caused gas leakage of chlorination furnace pressure in art.
In addition, chlorination furnace pressure-relief explosion-proof according to the above embodiment of the present invention and exhaust treatment system can also have it is as follows
Additional technical characteristic：
In some embodiments of the invention, the chlorination furnace pressure is higher than 1KPa, and the pneumatic operated valve is opened.
In some embodiments of the invention, the chlorination furnace pressure is less than 0.5KPa, and the pneumatic operated valve is closed.
In some embodiments of the invention, the first method is passed through between the explosion-proof relief mouth and first relief pipeline
Orchid connection, and the first flange inner face has seal.Thus, it is possible to significantly improve the sealing effectiveness of system.
In some embodiments of the invention, second is passed through between the both ends of the pneumatic operated valve and second relief pipeline
Flange connects, and junction arrangement seal.Thus, it is possible to significantly improve the sealing effectiveness of system.
In some embodiments of the invention, the seal is asbestos pad.Thus, it is possible to significantly improve the sealing of system
Effect.
In some embodiments of the invention, the maximum pressure-bearing of the asbestos diaphragm is 3KPa.Thus, it is possible to solve existing
The problem that gas caused by chlorination furnace pressure abruptly increase leaks in technology.
In some embodiments of the invention, the washing unit includes the one-stage water wash device and two level water being sequentially connected
Cleaning device.Thus, it is possible to significantly improve the environment protecting of the system.
In some embodiments of the invention, the caustic wash unit includes being sequentially connected and alkaline cleaner and two level alkali
Cleaning device.Thus, it is possible to further improve the environment protecting of the system.
In some embodiments of the invention, the internal diameter of first relief pipeline is more than the interior of second relief pipeline
Footpath.Thus, it is possible to gas leakage problem caused by effectively avoiding furnace pressure abruptly increase.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is chlorination furnace pressure-relief explosion-proof and exhaust treatment system structural representation according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In one aspect of the invention, the present invention proposes a kind of chlorination furnace pressure-relief explosion-proof and exhaust treatment system.According to
Embodiments of the invention, with reference to figure 1, the system includes：Chlorination furnace 100, the first relief pipeline 200, the second relief pipeline 300,
Wash unit 400 and caustic wash unit 500.
According to an embodiment of the invention, chlorination furnace 100 has the feed(raw material)inlet containing high titanium slag, petroleum coke and sodium chloride
101st, chlorine inlet 102, chlorination reaction mixture outlet 103 and explosion-proof relief mouth 104, and explosion-proof relief mouth 104 is located at chlorine
Change the top of stove 100, to be supplied in chlorination furnace after mixing high titanium slag, petroleum coke and sodium chloride in proportion, and to chlorination
Chlorine is supplied in stove, it is anti-so as to obtain the chlorination containing titanium tetrachloride gases so as to which chlorination reaction occurs in chlorination furnace
Answer mixture.According to the specific embodiment of the present invention, chlorination reaction can be carried out at a temperature of 700~800 degrees Celsius,
Preferably, chlorination reaction is carried out at a temperature of 750 degrees Celsius.Specifically, the production of titanium tetrachloride gases mainly to
High titanium slag, petroleum coke and sodium chloride are continuously added in chlorination furnace, and chlorine is continuously passed through into reactor；And
Temperature high titanium slag and chlorine at 750 DEG C recur reaction and are continuously generated TiCl4Gas, reaction equation are：TiO2+C+
2Cl2=TiCl4↑+CO2。
According to an embodiment of the invention, the first relief pipeline 200 is connected with explosion-proof relief mouth 107, and in the first relief tube
Asbestos diaphragm 21 is disposed with road 200, according to the specific embodiment of the present invention, the maximum pressure-bearing of asbestos diaphragm 21 is
3KPa, i.e., when pressure is more than 3Kpa, asbestos diaphragm is rupturable.Specifically, when chlorination furnace furnace top pressure value abruptly increase is more than 3KPa
When, asbestos diaphragm 21 ruptures, and the mixed gas in chlorination furnace sequentially enters washing unit and alkali cleaning through the discharge of the first relief pipeline
Unit, until furnace pressure is stable, after the working of a furnace is stable, new asbestos diaphragm is reinstalled, so as to avoid in the prior art
Due to personnel's poisoning and environmentally friendly accident caused by the too high caused gas leakage of chlorination furnace pressure.According to another of the present invention
Specific embodiment, connected by first flange (not shown) between the relief pipeline 200 of explosion-proof relief mouth 107 and first, and
One flange (not shown) inner face has seal (not shown), so as to ensure between explosion-proof relief mouth and the first relief pipeline
Gas leakage does not occur.
According to an embodiment of the invention, the second relief pipeline 300 and the first relief pipeline positioned at the lower section of asbestos diaphragm 21
200 connections, and it is disposed with pneumatic operated valve 31 on the second relief pipeline 300.According to the specific embodiment of the present invention, work as furnace roof
When detection pressure value is higher than 1kpa, furnace roof detects pressure value and the automatic interlock of pneumatic operated valve 31 of the second relief pipeline 300, now gas
Dynamic valve 31 is opened, and furnace gas sequentially enters washing unit and caustic wash unit by the discharge of the second relief pipeline 300；Work as furnace pressure
During less than 0.5kpa, the pneumatic operated valve 31 on the second relief pipeline 300 is closed automatically, is transferred to normal production.According to of the invention another
Individual specific embodiment, connected between the both ends of pneumatic operated valve 31 and the second relief pipeline 300 by second flange (not shown), and
Seal (not shown) is arranged in junction, so as to significantly improve the sealing effectiveness of system.Specifically, the first relief pipeline
Internal diameter is higher than the internal diameter of the second relief pipeline, so that when chlorination furnace pressure abruptly increase is more than 3Kpa, in the first relief pipeline
Asbestos diaphragm is burst so that gas is quickly discharged by the first relief pipeline, so as to the immediate stability working of a furnace.
According to an embodiment of the invention, the seal at first flange and second flange can be asbestos pad.
According to an embodiment of the invention, washing unit 400 has gas inlet 401, water lotion entrance 402, washing hydrochloric acid
Outlet 403 and washing after gas outlet 404, gas inlet 401 respectively with the first relief pipeline 200 and the phase of the second relief pipeline 300
Even, and suitable for using water lotion to through the first relief pipeline or the second relief pipeline discharge tail gas (in tail gas containing HCl,
TiCl4、SiCl4、Cl2And SO2Deng) washing process is carried out, to absorb the HCl and TiCl in tail gas4Deng gas, specifically, can
To handle backwater as water lotion using industry water or saline solution, hydrochloric acid is produced after absorption, and when HCl concentration is more than 25v%
It is transported to export trade after hydrochloric acid tank.According to the specific embodiment of the present invention, washing unit 400 can include what is be sequentially connected
One-stage water wash device and two level water washing device, i.e. one-stage water wash device and two level water washing device are connected.
According to an embodiment of the invention, caustic wash unit 500 has gas entrance 501, absorbent entrance 502, alkali cleaning after washing
Liquid exports gas outlet 504 after 503 and alkali cleaning afterwards, and gas entrance 501 is connected with gas outlet 404 after washing after washing, and suitable for use
Absorbent is to gas after washing in unit obtained washing (containing Cl2And SO2Deng) alkali cleaning processing is carried out, to obtain liquid after alkali cleaning
Gas after (NaCl saline solutions) and the alkali cleaning of qualified discharge.Specifically, absorbent can be the sodium hydroxide solution that concentration is 20wt%,
And NaCl saline solutions will be produced after alkali cleaning and carry out triple effect evaporation recovery solid NaCl export trades.According to one of present invention specific implementation
Example, caustic wash unit 500 can include the one-level alkaline cleaner and two level alkaline cleaner being sequentially connected, i.e. one-level alkaline cleaner and two
Level alkaline cleaner series connection.
Chlorination furnace pressure-relief explosion-proof according to embodiments of the present invention and exhaust treatment system are by using with asbestos diaphragm
First relief pipeline and the second relief pipeline with pneumatic operated valve, when chlorination furnace pressure gradually increases, in the second relief pipeline
Pneumatic operated valve automatically turn on, until furnace pressure recovers stable, and when chlorination furnace pressure rises suddenly, in the first relief pipeline
Asbestos diaphragm rupture, so as to stablize furnace pressure, while by gas discharge through explosion-proof relief mouth successively by washing and alkali
Wash, not only can effectively reclaim chlorine element therein, and resulting tail gas can be with qualified discharge, so as to avoid existing skill
Due to personnel's poisoning and environmentally friendly accident caused by the too high caused gas leakage of chlorination furnace pressure in art.
In order to facilitate understanding, the operating process to the application chlorination furnace pressure-relief explosion-proof and exhaust treatment system below carries out detailed
Thin description.High titanium slag, petroleum coke are supplied in chlorination furnace first, and oxygen, air and chlorine are supplied into chlorination furnace, so as to
Chlorination reaction occurs in chlorination furnace, so as to obtain the chlorination reaction mixture containing titanium tetrachloride gases, works as chlorination furnace
When furnace roof detection pressure value is higher than 1Kpa, chlorination furnace furnace roof detection pressure value and the pneumatic operated valve automatic interlock of the second relief pipeline,
Now pneumatic operated valve is opened, and furnace gas sequentially enters washing unit and caustic wash unit by the discharge of the second relief pipeline, when stove internal pressure
When power is down to below 0.5kpa, pneumatic operated valve is closed automatically on the second relief pipeline, is transferred to normal production；And work as chlorination furnace pressure
When increasing suddenly to 3kpa, obstruct and burst automatically in furnace roof explosion-proof relief mouth to the asbestos diaphragm between the first relief pipeline, chlorine
Change furnace gas and washing unit and caustic wash unit are sequentially entered by the first relief pipeline, and after the working of a furnace is stable, reinstall new
Asbestos diaphragm, and enter washing unit in tail gas industry water or saline solution processing backwater in the presence of, tail gas can be absorbed
In HCl and TiCl4Deng gas, gas after hydrochloric acid and washing is obtained, it is 20wt%'s that gas, which enters caustic wash unit in concentration, after washing
Under sodium hydroxide solution effect, the Cl in tail gas is absorbed2And SO2Deng pernicious gas, liquid (NaCl saline solutions) and up to standard is obtained after alkali cleaning
Gas after the alkali cleaning of discharge.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of chlorination furnace pressure-relief explosion-proof and exhaust treatment system, it is characterised in that including：
Chlorination furnace, the chlorination furnace have the feed(raw material)inlet containing high titanium slag, petroleum coke and sodium chloride, chlorine inlet, chlorination anti-
Mixture outlet and explosion-proof relief mouth are answered, the explosion-proof relief mouth is located at the top of the chlorination furnace；
First relief pipeline, first relief pipeline are connected with the explosion-proof relief mouth, and in first relief pipeline
It is disposed with asbestos diaphragm；
Second relief pipeline, second relief pipeline connect with the first relief pipeline below the asbestos diaphragm, and
And it is disposed with pneumatic operated valve on second relief pipeline；
Wash unit, it is described washing unit have gas inlet, water lotion entrance, washing hydrochloric acid outlet and washing after gas export,
The gas inlet is connected with first relief pipeline and second relief pipeline respectively；
Caustic wash unit, the caustic wash unit go out with gas after liquid outlet after gas entrance, absorbent entrance, alkali cleaning after washing and alkali cleaning
Mouthful, gas entrance is connected with gas outlet after the washing after the washing.
2. system according to claim 1, it is characterised in that the chlorination furnace pressure is higher than 1KPa, the pneumatic operated valve
Open.
3. system according to claim 1, it is characterised in that the chlorination furnace pressure is less than 0.5KPa, described pneumatic
Valve is closed.
4. system according to claim 1, it is characterised in that between the explosion-proof relief mouth and first relief pipeline
Connected by first flange, and the first flange inner face has seal.
5. system according to claim 1, it is characterised in that the both ends of the pneumatic operated valve and second relief pipeline it
Between connected by second flange, and junction arrangement seal.
6. the system according to claim 4 or 5, it is characterised in that the seal is asbestos pad.
7. system according to claim 1, it is characterised in that the maximum pressure-bearing of the asbestos diaphragm is 3KPa.
8. system according to claim 1, it is characterised in that the washing unit includes the one-stage water wash dress being sequentially connected
Put and two level water washing device.
9. system according to claim 1, it is characterised in that the caustic wash unit includes be sequentially connected and alkali cleaning dress
Put and two level alkaline cleaner.
10. system according to claim 1, it is characterised in that the internal diameter of first relief pipeline is more than described second
The internal diameter of relief pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138086.4A CN107804869A (en) | 2017-11-16 | 2017-11-16 | Chlorination furnace pressure-relief explosion-proof and exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138086.4A CN107804869A (en) | 2017-11-16 | 2017-11-16 | Chlorination furnace pressure-relief explosion-proof and exhaust treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN107804869A true CN107804869A (en) | 2018-03-16 |
Family
ID=61580737
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| CN201711138086.4A Withdrawn CN107804869A (en) | 2017-11-16 | 2017-11-16 | Chlorination furnace pressure-relief explosion-proof and exhaust treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113663480A (en) * | 2021-08-23 | 2021-11-19 | 云南国钛金属股份有限公司 | A treatment device for chlorine-containing waste gas from a chlorination furnace |
| CN115845739A (en) * | 2022-12-13 | 2023-03-28 | 扬州大劲电机制造有限公司 | Chlorine introducing device of reaction tower |
-
2017
- 2017-11-16 CN CN201711138086.4A patent/CN107804869A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113663480A (en) * | 2021-08-23 | 2021-11-19 | 云南国钛金属股份有限公司 | A treatment device for chlorine-containing waste gas from a chlorination furnace |
| CN113663480B (en) * | 2021-08-23 | 2024-11-05 | 云南国钛金属股份有限公司 | A treatment device for chlorination furnace chlorine-containing waste gas |
| CN115845739A (en) * | 2022-12-13 | 2023-03-28 | 扬州大劲电机制造有限公司 | Chlorine introducing device of reaction tower |
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Application publication date: 20180316 |