CN208898505U - A kind of molten sulfur degasification system - Google Patents
A kind of molten sulfur degasification system Download PDFInfo
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- CN208898505U CN208898505U CN201821139637.9U CN201821139637U CN208898505U CN 208898505 U CN208898505 U CN 208898505U CN 201821139637 U CN201821139637 U CN 201821139637U CN 208898505 U CN208898505 U CN 208898505U
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Abstract
A kind of molten sulfur degasification system, belongs to technical field of sulfur recovery.Molten sulfur pond including being equipped with Molten sulphur, it is characterized by: being staggeredly equipped at least one set of static mixer unit (7) and one group of bubbler unit (6) in the bottom in molten sulfur pond, air blower (2) are provided with outside molten sulfur pond, the delivery outlet of air blower (2) connects the gas phase entrance of bubbler unit (6) and static mixer unit (7) simultaneously, it is provided with circulating pump (9), the entrance of circulating pump (9) connects molten sulfur pond, its liquid phase entrance for exporting connection static mixer unit (7), gas treatment means are additionally provided with outside molten sulfur pond, gas treatment means include hydrogenator (8), the gas deviate from from Molten sulphur is sent into hydrogenator (8).In this molten sulfur degasification system, by bubbler unit and static mixer unit matching, Molten sulphur degasifying effect is more preferable, while by setting gas treatment means, avoiding environmental pollution.
Description
Technical field
A kind of molten sulfur degasification system, belongs to technical field of sulfur recovery.
Background technique
In Claus sulfur recovery facility, the sulfury that acid Process Gas is generated by sulphur furnace processed, reactor is by heat exchange
After device condensation, liquid phase is become from gas phase and imports molten sulfur pond, these enter the Molten sulphur in molten sulfur pond, due to the surface tension of liquid
Make the sulfide gas for being surrounded by a part in molten sulfur, mainly includes H2S, H2SXWith a small amount of SO2, in addition one is also dissolved in molten sulfur
Part H2S, total concentration are about 250~350ug/g, these sulfide are toxic gas, have corrosivity, mix with air
Explosive mixture, especially H can be formed2S belongs to the higher gas of mankind's extent of injury.It is made in molten sulfur entrucking outward transport and sulphur
During grain, for the hydrogen sulfide in molten sulfur to personal safety, environmental hazard is all uncertain, therefore removes the nocuousness in molten sulfur
Gas is the requisite measure of sulphur recovery producer.
In the prior art, the method for removing gas in molten sulfur has following several: 1, into molten sulfur be passed through (cleaning of off-gas,
Nitrogen or air) gas stripped, and it is carried by the gas being passed through and removes gas in molten sulfur；2, pass through mechanical agitation methods
The H being dissolved in molten sulfur2S is flushed out；3, the hydrogen sulfide being dissolved in molten sulfur is discharged using claus catalyst, and is added
The decomposition of fast hydrogen polysulfide.
There are mainly two types of the molten sulfur degasification modes that sulphur recovery producer, the country uses at present:
First way is the bubbler for having one layer of snakelike coiling in molten sulfur bottom of pond portion, is drawn air compression by air-introduced machine
Enter gas sparger, bubbler is provided with the opening down air leakage hole of Φ 6mm~Φ 10mm by stainless steel tube, and the turbulence of gas promotes liquid
H in sulphur2S is diffused out enters molten sulfur pond headspace together with stripping gas, will be at the top of molten sulfur pond by steam jet ejector
Gas pressurized after, abjection pneumatic transmission enter sulphur furnace processed or into tail gas burning furnace, achieve the purpose that be further processed molten sulfur gas.It is this
The shortcomings that molten sulfur degasification mode is: coiled tube arrangements are irregular, and opening is single downward, and gas gas string easy to form is not filled with liquid stream
Tap touching just escapes between the head space of pond, and gas stirring molten sulfur effect is bad.
The second way is de-gassed using degassing tower, and molten sulfur is promoted to cooler, molten sulfur by pumping from molten sulfur degasification pond
Be cooled to 130~140 DEG C mixed with another way compressed air after enter degassing tower lower part, aluminium oxide Crouse catalysis is filled up in tower
Agent, H when molten sulfur passes through catalyst in molten sulfur2SXIt is decomposed into H2It is empty to enter tower upper gaseous phase under the drive of air for S evolution
Between, from top of tower pipeline outlet system sulphur furnace or into tail gas burning furnace.The shortcomings that this molten sulfur degasification mode, is: process flow
Long, due to being related to the operating costs such as catalyst, pump, tower, heat exchanger height, the effect of molten sulfur degasification does not have than fluid cell pucking bubbler yet
There is apparent advantage.
Meanwhile the gas of both above two modes removing no matter system sulphur furnace or into tail gas burning furnace, have centainly
The shortcomings that, if system sulphur furnace is since the air capacity that matches in sulphur furnace processed with Process Gas is fixed number, steam jet ejector carries de-
H out2S and large quantity of air enter, and so that furnace temperature is generated fluctuation and impact to equipment；If into tail gas burning furnace, H2S and
H2SXBurning becomes SO2, increase atmosphere pollution, cause discharge not up to standard, bring environmental issue.
Summary of the invention
Technical problem to be solved by the utility model is: overcoming the deficiencies of the prior art and provide a kind of by bubbler list
Member and static mixer unit matching, Molten sulphur degasifying effect is more preferable, while by setting gas treatment means to liquid sulfur
The gas of sulphur abjection is handled, and the molten sulfur degasification system of environmental pollution is avoided.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the molten sulfur degasification system, including liquid is housed
The molten sulfur pond of body sulphur, it is characterised in that: be staggeredly equipped at least one set of static mixer unit and one in the bottom in molten sulfur pond
Group bubbler unit, is provided with air blower outside molten sulfur pond, and the delivery outlet of air blower connects bubbler unit and static state simultaneously
The gas phase entrance of mixer unit, is provided with circulating pump, and the entrance of circulating pump connects molten sulfur pond, outlet connection static mixer
The liquid phase entrance of unit, is additionally provided with gas treatment means outside molten sulfur pond, and gas treatment means include hydrogenator and steaming
Vapour injector, the gas deviate from from Molten sulphur are sent into hydrogenator through steam jet ejector.
Preferably, described in each group in static mixer unit, including two static mixers, two static mixings
Device is located at the two sides in molten sulfur pond, and the outlet and entrance reverse setting of two static mixers.
Preferably, the static mixer is circular tube shaped, and both ends are respectively that molten sulfur exports and as liquid phase entrance
Molten sulfur entrance, offered on the tube wall that static mixer is located at molten sulfur inlet side static mixer as gas phase entrance into
Port is axially uniformly fixed with muti-piece gas-liquid mixed plate along static mixer inside static mixer.
Preferably, the gas-liquid mixed plate includes plate body and the axial several plate holes being uniformly provided on plate body.
It preferably, include a plurality of bubbler inlet manifold arranged side by side in bubbler unit described in each group,
Its axial direction of two lateral edges of each bubbler inlet manifold is respectively fixed with row's bubbler, bubbler with the bubbling that is connected
Device inlet manifold connection offers an air inlet for connecting with air blower on the tube wall of each bubbler inlet manifold
General pipeline air inlet.
Preferably, the bubbler includes a closed bubbler ontology, and bubbler ontology is ampuliform, in bubbler
One end of ontology is provided with opening, is welded with connector in opening, the end of connector offer be used for and bubbler into
The screw thread of gas general pipeline connection, bubbler ontology are that the sintering of stainless steel powder powder material is made.
It preferably, further include preheater in the gas treatment means, the high-pressure fluid of the steam jet ejector connects
Mouth connection steam input pipe, low-pressure fluid interface connect the gas-phase space of molten sulfur pond inner top, the output of steam jet ejector
The entrance of mouth connection preheater, the entrance of the outlet connection hydrogenation reaction of preheater；It was also parallel in the inlet of preheater
Journey gas intake line.
Preferably, there is partition wall in the molten sulfur Chi Zhongzhu, molten sulfur cell compartment is molten sulfur degasification pond and degassing liquid by partition wall
Sulphur pond, the static mixer unit and bubbler unit are located in molten sulfur degasification pond, and the entrance of the circulating pump equally connects
Enter in molten sulfur degasification pond, be provided with rear pump outside degassing molten sulfur pond, by the entrance access degassing molten sulfur pond of rear pump.
Preferably, the bottom in the molten sulfur degasification pond is provided with steam heater.
Compared with prior art, beneficial effect possessed by the utility model is:
1, in this molten sulfur degasification system, pass through bubbler unit and static mixer unit matching, Molten sulphur degassing
Effect is more preferable, while being handled by the way that the gas that gas treatment means deviate from Molten sulphur is arranged, and avoids environmental pollution.
2, bubbler ontology is made of the sintering of stainless steel powder powder material, therefore bubbler ontology is integrally covered with air leakage hole,
After blasting air in bubbler, the spilling of bubble is can be achieved in the border of bubbler ontology, considerably increases bubbling efficiency.
It 3, include two static mixers in each group of static mixer unit, two static mixers are symmetrically positioned in molten sulfur
The two sides in degassing pond, and two static mixers are inversely placed, therefore the liquid sulfur of the delivery outlet outflow of two static mixers
The flow direction of sulphur is on the contrary to form circulation.
4, by setting up procedure gas intake line, contain H for what is generated in other techniques2S and SO2Gas be sent into together
It is reacted in hydrogenator, avoids the discharge of pernicious gas.
5, circulating pump is additionally provided with outside molten sulfur pond, the entrance of circulating pump accesses molten sulfur degasification pond by pipeline, by liquid
Body sulphur outlet port is sent into two layers of static mixer unit, and the air outlet of air blower connects two layers of static mixer list simultaneously
Member completes a degree of gas-liquid mixed in static mixer unit, while driving liquid sulfur by static mixer unit
Sulphur slowly moves in molten sulfur degasification pond, accelerates degassing.
Detailed description of the invention
Fig. 1 is molten sulfur degasification system structure diagram.
Fig. 2 is molten sulfur degasification system bubbler cellular construction schematic diagram.
Fig. 3 is molten sulfur degasification system bubbler structural schematic diagram.
Fig. 4 is molten sulfur degasification static system mixer unit structural schematic diagram.
Fig. 5 is molten sulfur degasification static system mixer structure schematic diagram.
Fig. 6 is molten sulfur degasification static system mixer gas-liquid mixed plate structural schematic diagram.
Wherein: 1, air input passageway 2, air blower 3, Molten sulphur intake line 4, Process Gas intake line
5, preheater 6, bubbler unit 7, static mixer unit 8, hydrogenator 9, circulating pump 10, steam injection
Device 11, partition wall 12, hydrogen sulfide output pipe 13, rear pump 14, steam input pipe 15, steam heater
16, molten sulfur degasification pond 17, degassing molten sulfur pond 18, bubbler 19, bubbler inlet manifold 20, inlet manifold's air inlet
21, bubbler ontology 22, bubbler inner cavity 23, static mixer 24, molten sulfur outlet 25, gas-liquid mixed plate 26,
Static mixer air inlet 27, molten sulfur entrance 28, plate hole 29, plate body.
Specific embodiment
Fig. 1 ~ 6 are the most preferred embodiments of the utility model, and 1 ~ 6 pair of the utility model is done furtherly with reference to the accompanying drawing
It is bright.
As shown in Figure 1, a kind of molten sulfur degasification system, including one for holding the molten sulfur pond of Molten sulphur, in the molten sulfur
A face partition wall 11 has been built in pond, which is formed by molten sulfur degasification pond 16 and degassing molten sulfur pond 17, liquid by partition wall 11
Body sulphur is first fed into molten sulfur degasification pond 16 and is de-gassed, and the Molten sulphur after degassing flows into degassing molten sulfur pond 17 through partition wall 11
It is interior, it is provided with rear pump 13 outside degassing molten sulfur pond 17, the liquid of degassing will be completed in the molten sulfur pond 17 that deaerates by rear pump 13
The discharge of body sulphur.It is provided with overflow hole on partition wall 11, to realize Molten sulphur from molten sulfur degasification pond 16 to degassing molten sulfur pond 17
Flowing.
The outside in molten sulfur degasification pond 16 is provided with the Molten sulphur for injecting Molten sulphur into molten sulfur degasification pond 16
Intake line 3 is equipped with steam heater 15 in the bottom in molten sulfur degasification pond 16, by steam heater 15 to molten sulfur degasification pond
Molten sulphur in 16 is heated, on the one hand place Molten sulphur solidification, on the other hand also accelerate Molten sulphur degassing into
Journey.
It is staggeredly equipped with two layers of static mixer unit 7 and bubbler unit 6 in the top of steam heater 15, in liquid
The outside in sulphur pond is provided with air blower 2, and the air inlet of air blower 2 connects air input passageway 1, and the air outlet of air blower 2 passes through
Pipeline is separately connected two layers of static bubbler unit 6, bloats bubble by bubbler unit 6, by bubbler unit 6 by gas
It is separated into tiny bubble, increases gas liquid interfacial area, convenient for the degassing of Molten sulphur.
Circulating pump 9 is additionally provided with outside molten sulfur pond, the entrance of circulating pump 9 accesses molten sulfur degasification pond 16 by pipeline, will
Molten sulphur outlet port is sent into two layers of static mixer unit 7, and the air outlet of air blower 2 connects two layers of static mixer simultaneously
Unit 7 completes a degree of gas-liquid mixed in static mixer unit 7, while driving liquid by static mixer unit 7
Body sulphur slowly moves in molten sulfur degasification pond 16, accelerates degassing.
The outside in molten sulfur pond is provided with steam jet ejector 10, the high-pressure fluid interface connection steam of steam jet ejector 10 is defeated
Enter pipeline 14, low-pressure fluid interface connects the gas-phase space of molten sulfur pond inner top, and the delivery outlet connection of steam jet ejector 10 is pre-
The entrance of hot device 5, the gas of Molten sulphur abjection is extracted under the driving of high steam (1MPa) in molten sulfur pond, and is sent into pre-
In hot device 5, gas is completed to enter in hydrogenator 8 after preheating in preheater 5, generates under the action of hydrogenation catalyst
H2S, and unified collection is carried out by hydrogen sulfide output pipe 12.It is additionally provided with Process Gas intake line 4, Process Gas intake line 4
Outlet be connected in parallel on the inlet of preheater 5 simultaneously, Process Gas intake line 4 is for being introduced into containing of generating in other techniques
H2S and SO2Gas, and be fed together in hydrogenator 8 and reacted.
As shown in Fig. 2, include a plurality of bubbler inlet manifold 19 arranged side by side in each bubbler unit 6,
Its axial direction of two lateral edges of each bubbler inlet manifold 19 is respectively fixed with row's bubbler 18, bubbler 18 be connected
Bubbler inlet manifold 19 be connected to.Inlet manifold's air inlet is offered on the tube wall of each bubbler inlet manifold 19
Mouth 20, for inlet manifold's air inlet 20 for connecting with air blower 2, the air that air blower 2 is sent out passes through inlet manifold's air inlet first
Mouth 20 enters in bubbler inlet manifold 19, then enters in each bubbler 18 by bubbler inlet manifold 19, then
Tiny bubble is generated by bubbler 18.
As shown in figure 3, bubbler 18 includes a closed bubbler ontology 21, bubbler ontology 21 is ampuliform, is bubbled
It is bubbler inner cavity 22 in device ontology 21, one end of bubbler ontology 21 is provided with the opening of connection bubbler inner cavity 22,
Opening is welded with connector, offers the screw thread for connecting with bubbler inlet manifold 19 in the end of connector.At this
In molten sulfur degasification system, bubbler ontology 21 is made of the sintering of stainless steel powder powder material, therefore the whole cloth of bubbler ontology 21
Spill-over stomata, after blasting air in bubbler 18, the spilling of bubble is can be achieved in the border of bubbler ontology 21, is increased
Bubbling efficiency is added.
As shown in figure 4, including two static mixers 23, two static mixings in each group of static mixer unit 7
Device 23 is symmetrically positioned in the two sides in molten sulfur degasification pond 16, and two static mixers 23 are inversely placed, therefore two static mixers
The flow direction of the Molten sulphur of 23 delivery outlet outflow is on the contrary to form circulation.
As shown in figure 5, static mixer 23 is circular tube shaped, both ends are connected separately with molten sulfur outlet 24 and liquid by flange
Sulphur entrance 27, wherein molten sulfur entrance 27 is located at molten sulfur entrance 27 1 in static mixer 23 for connecting with above-mentioned circulating pump 9
Static mixer air inlet 26 is offered on the tube wall of side, static mixer air inlet 26 with above-mentioned air blower 2 for connecting.
It is uniformly axially fixed with muti-piece gas-liquid mixed plate 25 along static mixer 23 inside static mixer 23, such as Fig. 6
Shown, gas-liquid mixed plate 25 includes plate body 29 and the axial several plate holes 28 being uniformly provided on plate body 29, works as liquid-state sulfur
When being flowed by molten sulfur entrance 27 from one end of static mixer 23, it is sent by the compressed air that air blower 2 is sent into from end, gas
It is flowed out after liquid mixing from the other end of static mixer 23, the Molten sulphur in molten sulfur degasification pond 16 is driven to form circulation.
Specific work process and working principle are as follows:
Molten sulphur is sent into the molten sulfur degasification pond 16 in molten sulfur pond through Molten sulphur intake line 3, and Molten sulphur is in molten sulfur
It deaerates in pond 16, so that Molten sulphur is kept liquid condition by steam heater 15, Molten sulphur is taken out under the action of circulating pump 9
It is fed again into after out in static mixer 23, Molten sulphur enters through the molten sulfur entrance 27 of static mixer 23, is sent by air blower 2
The compressed air entered from the ipsilateral feeding of molten sulfur entrance 27, in static mixer 23 by gas-liquid mixed plate 25 mixing after, gas
Liquid mixture simultaneously forms circulation from the Molten sulphur in 24 output of molten sulfur outlet, drive molten sulfur degasification pond 16.
In two layers of the bubbler unit 6 of compressed air while feeding be sent by air blower 2, the air that air blower 2 is sent out is first
It first passes through inlet manifold's air inlet 20 to enter in bubbler inlet manifold 19, then enter by bubbler inlet manifold 19 each
In a bubbler 18, tiny bubble then is generated by bubbler 18, increases gas liquid interfacial area, bubbler unit 6 cooperates
Northern Shandong or so of static mixer unit 7, gas dispersed distribution in molten sulfur pond drive pernicious gas row in floating-upward process
Out.
The Molten sulphur for completing degassing overflows to 17 side of degassing molten sulfur pond in molten sulfur pond through partition wall 11, and in rear pump 13
Under the action of be extracted molten sulfur pond and be collected, and after gas is deviate from from Molten sulphur, gather the gas phase above molten sulfur pond
In space, the outside in molten sulfur pond is provided with steam jet ejector 10, the gas that Molten sulphur is deviate from molten sulfur pond is in high steam
It is extracted under the driving of (1MPa), and contains H with what is generated in other techniques2S and SO2Gas, be admitted to preheater together
In 5, gas is completed to enter in hydrogenator 8 after preheating in preheater 5, generates H under the action of hydrogenation catalyst2S,
And unified collection is carried out by hydrogen sulfide output pipe 12.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (9)
1. a kind of molten sulfur degasification system, the molten sulfur pond including being equipped with Molten sulphur, it is characterised in that: interlock in the bottom in molten sulfur pond
It is provided at least one set of static mixer unit (7) and one group of bubbler unit (6), is provided with air blower outside molten sulfur pond
(2), the delivery outlet of air blower (2) connects the gas phase entrance of bubbler unit (6) and static mixer unit (7), setting simultaneously
Having circulating pump (9), the entrance of circulating pump (9) connects molten sulfur pond, and outlet connects the liquid phase entrance of static mixer unit (7),
It is additionally provided with gas treatment means outside molten sulfur pond, gas treatment means include hydrogenator (8) and steam jet ejector (10),
The gas deviate from from Molten sulphur is sent into hydrogenator (8) through steam jet ejector (10).
2. molten sulfur degasification system according to claim 1, it is characterised in that: the static mixer unit described in each group
(7) in, including two static mixers (23), two static mixers (23) are located at the two sides in molten sulfur pond, and two are quiet
The outlet and entrance reverse setting of state mixer (23).
3. molten sulfur degasification system according to claim 2, it is characterised in that: the static mixer (23) is round tube
Shape, both ends are respectively molten sulfur outlet (24) and the molten sulfur entrance (27) as liquid phase entrance, are located in static mixer (23)
The static mixer air inlet (26) as gas phase entrance is offered on the tube wall of molten sulfur entrance (27) side, in static mixer
(23) internal to be axially uniformly fixed with muti-piece gas-liquid mixed plate (25) along static mixer (23).
4. molten sulfur degasification system according to claim 3, it is characterised in that: the gas-liquid mixed plate (25) includes plate body
(29) and axially several plate holes (28) being uniformly provided on plate body (29).
5. molten sulfur degasification system according to claim 1, it is characterised in that: the bubbler unit (6) described in each group
In include a plurality of bubbler inlet manifold (19) arranged side by side, in its axis of two lateral edges of each bubbler inlet manifold (19)
To row's bubbler (18) is respectively fixed with, bubbler (18) is connected to the bubbler inlet manifold (19) being connected, every
Inlet manifold's air inlet for connecting with air blower (2) is offered on the tube wall of one bubbler inlet manifold (19)
(20).
6. molten sulfur degasification system according to claim 5, it is characterised in that: the bubbler (18) includes one closed
Bubbler ontology (21), bubbler ontology (21) be ampuliform, one end of bubbler ontology (21) is provided with opening, is being open
Place is welded with connector, offers the screw thread for connecting with bubbler inlet manifold (19), bubbler in the end of connector
Ontology (21) is that the sintering of stainless steel powder powder material is made.
7. molten sulfur degasification system according to claim 1, it is characterised in that: further include in the gas treatment means
The high-pressure fluid interface of preheater (5), the steam jet ejector (10) connects steam input pipe (14), low-pressure fluid interface
Connect the gas-phase space of molten sulfur pond inner top, the entrance of delivery outlet connection preheater (5) of steam jet ejector (10), preheater
(5) entrance of outlet connection hydrogenator (8)；Process Gas intake line is also parallel in the inlet of preheater (5)
(4).
8. molten sulfur degasification system according to claim 1, it is characterised in that: have partition wall in the molten sulfur Chi Zhongzhu
(11), molten sulfur cell compartment is molten sulfur degasification pond (16) and degassing molten sulfur pond (17), the static mixer list by partition wall (11)
First (7) and bubbler unit (6) are located in molten sulfur degasification pond (16), and the entrance of the circulating pump (9) equally accesses molten sulfur degasification
In pond (16), rear pump (13) are provided with outside degassing molten sulfur pond (17), pass through the entrance access degassing liquid of rear pump (13)
In sulphur pond (17).
9. molten sulfur degasification system according to claim 8, it is characterised in that: set in the bottom of the molten sulfur degasification pond (16)
It is equipped with steam heater (15).
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| CN201821139637.9U CN208898505U (en) | 2018-07-18 | 2018-07-18 | A kind of molten sulfur degasification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115724408A (en) * | 2021-08-31 | 2023-03-03 | 中国石油化工股份有限公司 | Degassing treatment device and method for liquid sulfur |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115724408A (en) * | 2021-08-31 | 2023-03-03 | 中国石油化工股份有限公司 | Degassing treatment device and method for liquid sulfur |
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