CN204421658U - The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas - Google Patents
The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas Download PDFInfo
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- CN204421658U CN204421658U CN201520044495.8U CN201520044495U CN204421658U CN 204421658 U CN204421658 U CN 204421658U CN 201520044495 U CN201520044495 U CN 201520044495U CN 204421658 U CN204421658 U CN 204421658U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas, the complete draw-out device of this yellow phosphorus electric furnace tail gas comprises and to be connected in series or bypass is connected to minute-pressure gas holder between the exhaust pipe of yellow phosphorus electric furnace gas washing phosphorus collecting tower and yellow phosphoric tail gas air exhauster, described minute-pressure gas holder is dish gas holder, described minute-pressure gas holder comprises tank and is placed in the bell jar in tank, and described bell jar can along the oscilaltion of bell jar guide rail.The utility model is by the adjustment voluntarily of minute-pressure volume of gas cabinet size in system, eliminate the fluctuation of yellow phosphorus electric furnace gas production and the impact brought is extracted on yellow phosphoric tail gas, not only achieve the extraction completely to yellow phosphoric tail gas, and serve the effect of stable furnace pressure, avoid yellow phosphorus electric furnace and occur security incident because of negative pressure.The utility model structure is improved rationally, and equipment economic performance is remarkable, and construction operation is easy to operation control, security is high.
Description
Technical field
The utility model relates to a kind of equipment of producing yellow Phosphorus by electric oven, particularly relates to the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas.
Background technology
At present in Yellow Phosphorus Industry production process, maximum pollutant is exactly yellow phosphoric tail gas, realize reducing discharging the pollution treatment of yellow phosphoric tail gas, first be will extract yellow phosphoric tail gas, and current technology is all generally directly extract with air exhauster before the emptying water seal of yellow phosphoric tail gas, the maximum problem of this extraction method to realize the extraction to 100% of yellow phosphoric tail gas, 85% of total amount can only be extracted at most, negative pressure during malleation when extraction yield will cause greatly electric furnace to occur again, when negative pressure, air enters electric furnace from feed bin through the bed of material, the air capacity hour entering electric furnace can cause in stove sets off firecrackers, electric furnace can be caused when measuring large to explode, the safe operation of serious threat electric furnace.This is the basic reason that can not realize 100% extraction yellow phosphoric tail gas at present.
Yellow phosphorus electric furnace is when normally working, phosphorus ore and coke, silica is by entering in the electric furnace of high temperature after technological requirement batching, liquid state is molten under the effect of powerful electric energy, carry out chemical reaction in the liquid state, raw material directly enters the different parts of electric furnace through tremie pipe from high hopper, material in stove can produce a large amount of furnace gases in chemical reaction, main component is the gaseous state of an oxidation carbon and target product phosphorus, these gases are discharged from the wireway furnace lid, then in gas washing phosphorus collecting tower, hot wash is used, through washing, the phosphorus of gaseous state is condensed into liquid phosphorus and enters in washing lotion, remaining gas is yellow phosphoric tail gas.In the normal state, the electrical power held stationary of electric furnace, the speed of electric furnace melt is basicly stable, and the gas flow of generation is more stable, but the actual industrial and mineral more complicated of electric furnace, as raw material in stove and half melt district knot arch, tremie pipe blocks, raw material bridge formation etc. in feed bin, the space that these factors all can make the raw material be melted in stove produce can not get supplementing in time, thus form larger furnace charge accommodating space, when in electric furnace running, in order to destroy this abnormal running status, operating personnel constantly adopt float electrode, beat tremie pipe, beat the means such as feed bin to destroy knot arch in stove, tremie pipe blocks, in feed bin, furnace charge is built bridge, sometimes knot arch can also spontaneously be destroyed, blocking, arch formation, no matter be artificial or spontaneous destruction knot arch, blocking, arch formation, as long as once destroy, the accommodating space formed in stove will be filled up by furnace charge at once, gas in space will be forced out at once, therefore gas production can increase suddenly within 1-2 second, be multiplied sometimes, yellow phosphoric tail gas gas production is fluctuated very large, so eliminate the impact of this tolerance fluctuation on control of bleeding just particularly important.
The extraction of traditional yellow phosphoric tail gas directly extracts from the tracheae before the emptying water seal of yellow phosphorus electric furnace with air exhauster, while extraction tail gas, in order to safety, some tail gas must burn in emptying, when rate of air sucked in required is constant, when electric furnace produce instantaneous gas production large time, discharge capacity is just large, when the instantaneous gas production hour of electric furnace, discharge capacity is just little.Existing method is: must ensure gas in gas production hour and discharge burning.If by the rate of air sucked in required driving large air exhauster, the tail gas that electric furnace produces all is taken away, simultaneously that evacuated tube is completely closed, now, once there be the material that collapses to occur in stove, within the time in 1-2 second, electric furnace capacity significantly rises, air exhauster has little time to tune up rate of air sucked in required, at this moment stove internal gas pressure raises rapidly, cause the seal failure of electrode water seal, water seal can light big fire at once, also furnace gas can be discharged because of furnace pressure superelevation in feed bin, light big fire, and then, electric furnace capacity significantly declines again, and the speed that rate of air sucked in required turned down by air exhauster does not catch up with, at this moment rate of air sucked in required is greater than gas production, electric furnace furnace pressure becomes negative pressure at once, air enters electric furnace between the space of furnace charge particle, namely may blast at any time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind ofly to be eliminated the gas production influence of fluctuations of yellow phosphorus electric furnace tail gas and extracts yellow phosphorus electric furnace tail gas completely and can not cause the device of electric furnace negative pressure.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas, comprise and to be connected in series or bypass is connected to minute-pressure gas holder between the exhaust pipe of yellow phosphorus electric furnace gas washing phosphorus collecting tower and yellow phosphoric tail gas air exhauster, described minute-pressure gas holder is dish gas holder, described minute-pressure gas holder comprises tank and is placed in the bell jar in tank, and described bell jar can along the oscilaltion of bell jar guide rail.The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas of the utility model, by arranging a minute-pressure gas holder as buffer device between air exhauster and electric furnace, the effect gas production of electric furnace being played to peak load shifting can be reached, under this operating mode, just solve the equilibrium problem of gas production and rate of air sucked in required by the slow adjustment of air exhauster valve, thus realize the extraction completely to yellow phosphoric tail gas.
As preferably, the minimum volume of described minute-pressure gas holder is 10%. minute-pressure gas holder minimum volume of yellow phosphorus electric furnace gas production per minute is to play the minimum requirement of stabilization.Yellow phosphorus electric furnace gas production available gas per minute flowmeter survey is also converted by total gas production.
As preferably, the volume of described minute-pressure gas holder be yellow phosphorus electric furnace gas production per minute 10% to 200%. minute-pressure volume of gas cabinet is larger in theory, shock-absorbing capacity is better, better to the stabilization of furnace pressure; But after minute-pressure volume of gas cabinet exceedes 200% of yellow phosphorus electric furnace gas production per minute, the effect of increase is just not obvious.
As preferably, the exhaust pipe of described yellow phosphorus electric furnace gas washing phosphorus collecting tower is also connected with the emptying water seal of yellow phosphoric tail gas, and described yellow phosphoric tail gas emptied of water is sealed up and is connected with evacuated tube.Be convenient to can to carry out when yellow phosphorus electric furnace gas production is very little directly emptying like this.
As preferably, between the exhaust pipe of described minute-pressure gas holder and yellow phosphorus electric furnace gas washing phosphorus collecting tower, be provided with isolation water seal.Be convenient to like this when overhauling minute-pressure gas holder by isolating water seal to make itself and isolation of system.
Compared with prior art, the beneficial effect of the complete draw-out device of a kind of yellow phosphorus electric furnace of the utility model tail gas and air-exhaust method: by the adjustment voluntarily of minute-pressure volume of gas cabinet size in system, eliminate the fluctuation of yellow phosphorus electric furnace gas production and the impact brought is extracted on yellow phosphoric tail gas, not only achieve the extraction completely to yellow phosphoric tail gas, and serve the effect of stable furnace pressure, avoid yellow phosphorus electric furnace and occur security incident because of negative pressure.The utility model structure is improved rationally, and equipment economic performance is remarkable, and construction operation is easy to operation control, security is high.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of embodiment of the complete draw-out device of a kind of yellow phosphorus electric furnace of the utility model tail gas.
Fig. 2 is the structural representation of the another kind of embodiment of the complete draw-out device of a kind of yellow phosphorus electric furnace of the utility model tail gas.
Wherein, Reference numeral: 1 is yellow phosphorus electric furnace gas washing phosphorus collecting tower, and 2 is exhaust pipe, and 3 is yellow phosphoric tail gas air exhauster, 4 is minute-pressure gas holder, and 5 is tank, and 6 is bell jar, and 7 is bell jar guide rail, and 8 is the emptying water seal of yellow phosphoric tail gas, and 9 is evacuated tube, and 10 is isolation water seal.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As depicted in figs. 1 and 2, the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas of the utility model, comprise and to be connected in series or bypass is connected to minute-pressure gas holder 4 between the exhaust pipe 2 of yellow phosphorus electric furnace gas washing phosphorus collecting tower 1 and yellow phosphoric tail gas air exhauster 3, described minute-pressure gas holder 4 is dish gas holder, the bell jar 6 that described minute-pressure gas holder 4 comprises tank 5 and is placed in tank, described bell jar 6 can along bell jar guide rail 7 oscilaltion.The minimum volume of described minute-pressure gas holder 4 is yellow phosphorus electric furnace gas production per minute 10%. here the volume of minute-pressure gas holder 4 is related to yellow phosphorus electric furnace gas production per minute 10% to 200%. described in yellow phosphorus electric furnace gas washing phosphorus collecting tower 1 exhaust pipe 2 on be also connected with the emptying water seal 8 of yellow phosphoric tail gas, the emptying water seal 8 of described yellow phosphoric tail gas is connected with evacuated tube 9.Isolation water seal 10 is provided with between the exhaust pipe 2 of described minute-pressure gas holder 4 and yellow phosphorus electric furnace gas washing phosphorus collecting tower 1.
As depicted in figs. 1 and 2, can according to following steps when the complete draw-out device of a kind of yellow phosphorus electric furnace of the utility model tail gas uses: A, when yellow phosphorus electric furnace is driven, when electric furnace gas production per minute is less than 5 cubic metres, gas air exhauster does not start and by isolated water packing from minute-pressure gas holder, yellow phosphoric tail gas by emptying water seal and evacuated tube directly emptying; B, when electric furnace gas production per minute is more than or equal to 5 cubic metres, start air exhauster, live the emptying water seal of yellow phosphoric tail gas with water seal simultaneously; C, when yellow phosphorus electric furnace stops, first bleed off phosphorus tail gas by the water in emptying water seal, directly emptying lentamente, slowly reduce pumping with exhaust blower amount, finally stop air exhauster, by isolated water packing from minute-pressure gas holder, tail gas discharges from evacuated tube completely simultaneously.The operating pressure of minute-pressure gas holder is the pressure of electric furnace when normal work, namely between 50Pa to 1000Pa.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the complete draw-out device of yellow phosphorus electric furnace tail gas, it is characterized in that: comprise and to be connected in series or bypass is connected to minute-pressure gas holder (4) between the exhaust pipe (2) of yellow phosphorus electric furnace gas washing phosphorus collecting tower (1) and yellow phosphoric tail gas air exhauster (3), described minute-pressure gas holder (4) is dish gas holder, described minute-pressure gas holder (4) comprises tank (5) and is placed in the bell jar (6) in tank, and described bell jar (6) can along bell jar guide rail (7) oscilaltion.
2. the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas according to claim 1, is characterized in that: the minimum volume of described minute-pressure gas holder (4) is 10% of yellow phosphorus electric furnace gas production per minute.
3. the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas according to claim 2, is characterized in that: the volume of described minute-pressure gas holder (4) is 10% to 200% of yellow phosphorus electric furnace gas production per minute.
4. the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas according to claim 1, it is characterized in that: the exhaust pipe (2) of described yellow phosphorus electric furnace gas washing phosphorus collecting tower (1) is also connected with the emptying water seal of yellow phosphoric tail gas (8), the emptying water seal of described yellow phosphoric tail gas (8) is connected with evacuated tube (9).
5. the complete draw-out device of a kind of yellow phosphorus electric furnace tail gas according to claim 1, is characterized in that: be provided with isolation water seal (10) between the exhaust pipe (2) of described minute-pressure gas holder (4) and yellow phosphorus electric furnace gas washing phosphorus collecting tower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044495.8U CN204421658U (en) | 2015-01-22 | 2015-01-22 | The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044495.8U CN204421658U (en) | 2015-01-22 | 2015-01-22 | The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas |
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| CN204421658U true CN204421658U (en) | 2015-06-24 |
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| CN201520044495.8U Active CN204421658U (en) | 2015-01-22 | 2015-01-22 | The complete draw-out device of a kind of yellow phosphorus electric furnace tail gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596305A (en) * | 2015-01-22 | 2015-05-06 | 绵阳启明星磷化工有限公司 | Complete-exhausting device and method for tail gas of yellow phosphorus electric furnace |
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2015
- 2015-01-22 CN CN201520044495.8U patent/CN204421658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596305A (en) * | 2015-01-22 | 2015-05-06 | 绵阳启明星磷化工有限公司 | Complete-exhausting device and method for tail gas of yellow phosphorus electric furnace |
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