CN106145055A - A kind of sulfur recovery facility - Google Patents
A kind of sulfur recovery facility Download PDFInfo
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- CN106145055A CN106145055A CN201610766101.9A CN201610766101A CN106145055A CN 106145055 A CN106145055 A CN 106145055A CN 201610766101 A CN201610766101 A CN 201610766101A CN 106145055 A CN106145055 A CN 106145055A
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- Prior art keywords
- sulfur
- integral type
- recovery facility
- gas
- pot system
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of sulfur recovery facility, for the waste gas of combustion of sulfur, with the sulfur produced after collecting burning, sulfur recovery facility includes that the primary zone being sequentially communicated, integral type give up pot system and processing system.Primary zone includes the air register for being passed through air that the burner of the waste gas for being passed through sulfur-bearing connects with burner；Integral type give up pot system include the cylinder for water storage, the heat-exchanging tube bundle being located in cylinder, be located at the gas-liquid separator above cylinder, be connected with gas-liquid separator separate the superheater of rear steam for receiving；Processing system includes sulfur separator, the molten sulfur catcher connected with sulfur separator respectively and the gas outlet that sulfur cooler connects with sulfur cooler.One sulfur recovery facility of the present invention, arranges integral type and gives up pot system, low cost, and steam-water separation efficiency is high, during during operation, heat-exchanging tube bundle is completely immersed in water, it is to avoid the problems such as the localized hyperthermia owing to vapour lock causes, tube head crackle occur, improve the safety of equipment.
Description
Technical field
The present invention relates to a kind of sulfur recovery facility.
Background technology
Along with the development of oil recovery technique, advanced oil recovery technique is applied, it is possible to by viscous crude, oil shale, even adsorb
Solidified oil in sand gap can come in extraction, and the oil product in these oil fields is compared to have in the past and reduced largely, in oil product
Sulfur content is higher, and the old equipment of oil plant cannot adapt to this situation.
Having had been found that high-sulfur oil field at present both at home and abroad, and reserves are relatively big, exploitation and refinery high-sulfur oils are trends of the times.And
In the deep processing Follow-up Industry chain of some Coal Chemical Industries, particularly Coal Chemical Industry, most distillation systems is with coal or high with sulfur-bearing
How chemical industry based on crude oil, owing to sulfur content is higher, improve oil quality and reduce sulphur emissions minimizing atmospheric pollution, reclaim profit
One of cost emphasis becoming Coal Chemical Industry and oil refining research is reduced with sulfur.
In current sulfur recovery system, the split type structure of boiler barrel of the many employings of waste heat boiler, set up in natural power circulation
After, forming a dynamic equilibrium between steamdrum and lower useless pot, pressured differential force advances water to flow from bottom to top.But it is as water
Flowing from bottom to top and constantly evaporating, useless pot upper gas is more, and some steam has little time to rise to upper vapour from tedge
Bag, will form pneumatosis on useless pot top, and the formation of pneumatosis causes tube sheet to be located for a long time at high operating temperatures, easily causes tube head
Crackle and affect the operation of system.And split type structure of boiler barrel, realize vapor-liquid separation owing to arranging independent drum, add
Equipment investment.
Summary of the invention
It is an object of the invention to provide a kind of sulfur recovery facility, the sulfur being separated and recovered from tail gas, utilize separation simultaneously
Time produce calorific value, improve resource utilization, decrease atmospheric pollution.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of sulfur recovery facility, for the waste gas of combustion of sulfur, with the sulfur produced after collecting burning, described sulfur recovery facility
Including:
Primary zone, described primary zone includes that the burner of the waste gas for being passed through sulfur-bearing connects with described burner
For being passed through the air register of air；
Integral type is given up pot system, and described integral type is given up pot system, is connected with described primary zone, be used for receiving described in once
The high-temperature flue gas produced after combustion chambers burn, described integral type pot system of giving up includes the cylinder for water storage, is located at described cylinder
In for being passed through the heat-exchanging tube bundle of pass-out high-temperature flue gas, being located at the gas-liquid separator above described cylinder and divide with described gas-liquid
The superheater of steam after receiving separation being connected from device；
Processing system, described processing system, pot system of giving up with described integral type is connected, and is used for receiving in described heat-exchanging tube bundle and changes
High-temperature flue gas after heat, described processing system include sulfur separator that sulfur cooler connects with described sulfur cooler, respectively with described sulfur
The molten sulfur catcher of separator connection and gas outlet.
Preferably, one end of described air register is connected with described burner, and described air register is attached at described integral type
On the outer wall of useless pot system, described air register, for by through described integral type give up pot system the preheating of described outer wall after sky
Gas is passed through in described burner.
Preferably, described sulfur recovery facility also include being located at described primary zone and described integral type give up pot system it
Between secondary combustion chamber, described secondary combustion chamber includes the gas distributor for being passed through the tail gas containing calorific value wherein.
It is highly preferred that described secondary combustion chamber is also connected with described air register.
Preferably, described integral type pot system of giving up also includes that described one is located at by high temperature air ejector, described high temperature air ejector
Formula is given up the pot system side near described primary zone.
Preferably, the center of described heat-exchanging tube bundle is provided with the central canal for being passed through pass-out high-temperature flue gas, described integral type
Useless pot system also includes the regulation valve group for regulating wherein high-temperature flue gas flow connected with described central canal, described regulation valve
It is mounted on the described central canal side near described processing system.
It is highly preferred that described central canal is along extending one section of extension of formation, described tune near the direction of described processing system
Joint valve group includes valve rod, being located in described extension of described valve stem slides.
Preferably, described heat-exchanging tube bundle entirety is submerged in water.
Preferably, described sulfur recovery facility also include being located at described primary zone and described integral type give up pot system it
Between spark arrester.
Preferably, described processing system also includes for connecting described sulfur separator and the molten sulfur pipe of described molten sulfur catcher
Road, for connecting described sulfur separator and the gas path pipe of described gas outlet.
Due to the utilization of technique scheme, the present invention compared with prior art has the advantage that one sulfur of the present invention
Sulphur retracting device, gives up pot system by arranging integral type, and not only cost is low, small investment, and steam-water separation efficiency is high, it is ensured that run
Time heat-exchanging tube bundle be completely immersed in water, it is to avoid the problems such as the localized hyperthermia owing to vapour lock causes, tube head crackle occur, improve and set
Standby safety.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of apparatus of the present invention；
Accompanying drawing 2 is the attachment structure schematic diagram regulating valve group and central canal in apparatus of the present invention.
Wherein: 1, primary zone；11, burner；12, air register；2, integral type is given up pot system；21, cylinder；22, change
Heat pipe bundle；221, central canal；222, extension；23, gas-liquid separator；24, superheater；25, high temperature air ejector；26, regulation valve
Group；261, valve rod；3, processing system；31, sulfur cooler；32, sulfur separator；33, molten sulfur catcher；34, gas outlet；35, molten sulfur
Pipeline；36, gas path pipe；4, secondary combustion chamber；41, gas distributor；5, spark arrester.
Detailed description of the invention
Come below in conjunction with the accompanying drawings technical scheme is further elaborated.
Seeing shown in Fig. 1-2, above-mentioned a kind of sulfur recovery facility, for the waste gas of combustion of sulfur, to produce after collecting burning
Raw sulfur.
In the present embodiment, this sulfur recovery facility includes the primary zone for combustion of sulfur waste gas being sequentially communicated
1, for the high-temperature flue gas generated after burning is carried out the integral type of heat exchange give up pot system 2, for collecting the processing system 3 of sulfur.
This primary zone 1 includes the air distribution that the burner 11 of the waste gas for being passed through sulfur-bearing connects with this burner 11
Device 12, this air register 12 is for being passed through air in burner 11 so that it is form high-temperature flue gas with waste gas one combust of sulfur-bearing.
One end of this air register 12 is connected with burner 11, this air register 12 be attached at integral type give up pot system 2 outer wall on.This is joined
Wind device 12 for by through integral type give up pot system 2 outer wall preheating after air be passed through in burner 11.Concrete can be
Integral type is given up one case of outside design of pot system 2, and air heats through the give up outer wall of pot system 2 of integral type, temperature
Can be heated to 50-80 degree from Normal Environmental Temperature 20 degree, the air after preheating is sent in burner 11 by air register 12.One
Aspect improves the abundant burning degree of the waste gas of sulfur-bearing, it is to avoid the waste gas imperfect combustion of sulfur-bearing just enters air and causes environment
Pollute；On the other hand also improve integral type to give up the gas production of pot system 2, make the give up efficiency of pot system 2 of integral type improve 3-5%.
The secondary combustion chamber 4 that sulfur recovery facility also includes being located at primary zone 1 and integral type is given up between pot system 2,
This secondary combustion chamber 4 includes the gas distributor 41 for being passed through the tail gas containing calorific value wherein.Should be containing the tail gas of calorific value
Essentially from petrochemical industry production technology.This secondary combustion chamber 4 is also connected with air register 12.I.e. give up pot system through integral type
Air after the outer wall heating of system 2, also can enter in secondary combustion chamber 4 combustion-supporting.By this arrange, the tail gas containing calorific value and
Preheated air is mixed into secondary combustion chamber 4, with the high-temperature flue gas from primary zone 1 jointly at secondary combustion chamber 4
Middle burning, preheated air is the oxygen that second-time burning provides abundance.On the one hand this structure make use of containing its of calorific value
Remaining calorific value in his tail gas；On the other hand the sulfurous gas not burnt in Ye Shi primary zone 1 is fully burned, and increases
Gas production, and by integral type give up pot system 2 be converted into steam obtain reasonable, effectively utilize.This structure achieves waste gas profit
With, improve energy utilization rate, reduce the discharge of sulfur.
This integral type pot system 2 of giving up is connected with secondary combustion chamber 4, for receiving through secondary combustion chamber 4 two times fully
The high-temperature flue gas produced after burning.This integral type pot system 2 of giving up includes the cylinder 21 for water storage, is located at changing in this cylinder 21
Heat pipe bundle 22, this heat-exchanging tube bundle 22 is used for being passed through pass-out high-temperature flue gas, and this heat-exchanging tube bundle 22 entirety is immersed in cylinder 21
In water.This heat-exchanging tube bundle 22 also includes the central canal 221 being coaxial therewith distribution being located therein the heart, and this central canal 221 is also used for
It is passed through pass-out high-temperature flue gas.This integral type pot system 2 of giving up also includes being located at the gas-liquid separator 23 above this cylinder 21 and this gas
The superheater 24 of steam after receiving separation that liquid/gas separator 23 is connected.This gas-liquid separator 23 is for changing in cylinder 21
The water vapour evaporating rising after heat carries out gas-liquid separation.This integral type pot system 2 of giving up also includes high temperature air ejector 25, and this high temperature is taken out
Gas device 25 is located at this integral type and is given up the pot system 2 side near this secondary combustion chamber 4.Big by heat-exchanging tube bundle 22 being immersed in one
In volume cylinder 21, cylinder 21 is the vapor-liquid separation face of open type above, is completely submerged in water by heat-exchanging tube bundle 22, it is to avoid go out
The tube head crackle now caused due to vapour lock.When this high temperature air ejector 25 is used for ensureing high load capacity, heat-exchanging tube bundle 22 front end high intensity is changed
Steam in hot-zone is discharged rapidly.When high-temperature flue gas enters in the cold water area of heat-exchanging tube bundle 22 front end, the temperature difference is maximum, and heat exchange is strong
Degree is also maximum, and the amount of the steam produced herein is most.This high temperature air ejector 25 can make high-temperature steam discharge in time, and ensures
The timely cooling of tube sheet and heat-exchanging tube bundle 22 and the welding point of tube sheet, it is to avoid tube sheet and welding point are in high temperature for a long time
Under operating mode, substantially prolongs the service life of equipment.
This integral type is given up the tune for regulating wherein high-temperature flue gas flow that pot system 2 also includes connecting with central canal 221
Joint valve group 26, this regulation valve group 26 is located at the central canal 221 side near processing system 3.This central canal 221 is along near processing system
The direction of system 3 extends and forms one section of extension 222, and this extension 222 is coaxially distributed with this central canal 221, this regulation valve group 26
Including valve rod 261, what this valve rod 261 slided is located in this extension 222, for regulating the stream of high-temperature flue gas in central canal 221
Amount.Owing to sulfur recovery facility is affected relatively big by production technology, causing integral type operating mode in pot system 2 of giving up unstable, afterbody holds
It is easily generated dew point corrosion, affects its service life.By arranging the regulation valve group 26 of central canal 221 and its afterbody, it is possible to regulation
Heat transfer intensity in whole heat-exchanging tube bundle 22, to ensure the temperature of afterbody.When system loading is relatively low, regulation valve group 26 aperture increases
Greatly, make to be increased by the high-temperature flue gas amount of central canal 221, then reduced by the high-temperature flue gas amount of heat-exchanging tube bundle 22, thus subtract
Few high-temperature flue gas exchanges with the heat of the outer water of heat-exchanging tube bundle 22；Otherwise, when system loading is higher, regulation valve group 26 aperture subtracts
Little, make to be reduced by the high-temperature flue gas amount of central canal 221, and increased by the high-temperature flue gas amount of heat-exchanging tube bundle 22, thus increase
High-temperature flue gas exchanges with the heat of the outer water of heat-exchanging tube bundle 22.This structure ensure that the temperature of tail flue gas, decreases dew point corrosion
Generation, adapted to the operating mode being continually changing, the stability of system played an important role.
This processing system 3 pot system 2 of giving up with this integral type is connected, for receiving after heat exchange in heat-exchanging tube bundle 22
High-temperature flue gas.This processing system 3 include sulfur separator 32 that sulfur cooler 31 connects with this sulfur cooler 31, respectively with this sulphur content from
Molten sulfur catcher 33 and the gas outlet 34 of device 32 connection, for connecting the molten sulfur pipeline of sulfur separator 32 and molten sulfur catcher 33
35, for connecting the gas path pipe 36 of sulfur separator 32 and gas outlet 34.This gas outlet 34 is chimney, and this gas path pipe 36 is cigarette
Road.
The spark arrester 5 that this sulfur recovery facility also includes being located at secondary combustion chamber 4 and integral type is given up between pot system 2.Logical
Crossing and arrange this spark arrester 5, the flame being possible to prevent secondary combustion chamber 4 is long, burns the pipeline of superheater 24.
The work process of the present embodiment under illustrating in detail below:
The waste gas of sulfur-bearing, enters primary zone 1 from burner 11 and burns, and preheated air enters burning from air register 12
With waste gas one combust of sulfur-bearing in device 11；The gas produced after burning enters in secondary combustion chamber 4, and from gas distributor 41
In again burn after other tail gas mixing of coming in, in order to ensure the abundant burning of waste gas, from air register 12, supplement part pre-
Hot-air enters in secondary combustion chamber 4, makes oxygen abundance flame stabilization, and the sulfide in waste gas is completely reformed into sulfur, thus carries
The conversion ratio (about improving 3-5%) of high sulfur.
Flame in secondary combustion chamber 4 is by after spark arrester 5, and fray-out of flame becomes high-temperature flue gas, and high-temperature flue gas enters one
Body formula is given up in the heat-exchanging tube bundle 22 in pot system 2, carries out heat exchange with the water in cylinder 21, converts heat to high-temperature steam, high
Temperature steam rises through vapour liquid separator, and the moisture content carried in separate vapour makes steam purer, subsequently into superheater 24
In, become high-quality steam.
High-temperature flue gas gives up after pot system 2 releases heat through integral type, enters in sulfur cooler 31 and cools further, its
In sulfur condensation after enter in molten sulfur catcher 33 along molten sulfur pipeline 35, flue gas therein then enters in chimney along flue and arranges
Go out.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and is carried out, and can not limit the scope of the invention with this, all according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within the scope of the present invention.
Claims (10)
1. a sulfur recovery facility, for the waste gas of combustion of sulfur, with the sulfur produced after collecting burning, it is characterised in that: institute
State sulfur recovery facility to include:
Primary zone, described primary zone includes that the burner of the waste gas for being passed through sulfur-bearing connects with described burner
For being passed through the air register of air；
Integral type is given up pot system, and described integral type is given up pot system, is connected with described primary zone, be used for receiving described in once
The high-temperature flue gas produced after combustion chambers burn, described integral type pot system of giving up includes the cylinder for water storage, is located at described cylinder
In for being passed through the heat-exchanging tube bundle of pass-out high-temperature flue gas, being located at the gas-liquid separator above described cylinder and divide with described gas-liquid
The superheater of steam after receiving separation being connected from device；
Processing system, described processing system, pot system of giving up with described integral type is connected, and is used for receiving in described heat-exchanging tube bundle and changes
High-temperature flue gas after heat, described processing system include sulfur separator that sulfur cooler connects with described sulfur cooler, respectively with described sulfur
The molten sulfur catcher of separator connection and gas outlet.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: one end of described air register and described combustion
Burner is connected, described air register be attached at described integral type give up pot system outer wall on, described air register, for will be through institute
State integral type give up pot system described outer wall preheating after air be passed through in described burner.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: described sulfur recovery facility also includes setting
Give up the secondary combustion chamber between pot system in described primary zone and described integral type, described secondary combustion chamber include for
Wherein it is passed through the gas distributor of the tail gas containing calorific value.
A kind of sulfur recovery facility the most according to claim 3, it is characterised in that: described secondary combustion chamber is also joined with described
Wind device is connected.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: described integral type pot system of giving up also includes
High temperature air ejector, described high temperature air ejector is located at described integral type and is given up the pot system side near described primary zone.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: the center of described heat-exchanging tube bundle is provided with use
In being passed through the central canal of pass-out high-temperature flue gas, described integral type give up that pot system also includes connecting with described central canal for regulating
The wherein regulation valve group of high-temperature flue gas flow, described regulation valve is mounted on the described central canal side near described processing system.
A kind of sulfur recovery facility the most according to claim 6, it is characterised in that: described central canal is along near described process
The direction of system extends and forms one section of extension, and described regulation valve group includes valve rod, described valve stem slides be located at described extension
Guan Zhong.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: described heat-exchanging tube bundle entirety is immersed in water
In.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: described sulfur recovery facility also includes setting
Give up the spark arrester between pot system in described primary zone and described integral type.
A kind of sulfur recovery facility the most according to claim 1, it is characterised in that: described processing system also include for
Connect described sulfur separator and the molten sulfur pipeline of described molten sulfur catcher, for connecting described sulfur separator and described gas outlet
Gas path pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766101.9A CN106145055B (en) | 2016-08-30 | 2016-08-30 | A kind of sulfur recovery facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766101.9A CN106145055B (en) | 2016-08-30 | 2016-08-30 | A kind of sulfur recovery facility |
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| CN106145055A true CN106145055A (en) | 2016-11-23 |
| CN106145055B CN106145055B (en) | 2018-05-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809368A (en) * | 2019-03-29 | 2019-05-28 | 中国石油工程建设有限公司 | A kind of oxygen-enriched combustion system and technique of the sulphur recovery for coal chemical industry |
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| CN202080889U (en) * | 2011-05-25 | 2011-12-21 | 天津市宝月钢制品有限公司 | Sulfur recovery system based on tail gas combustion |
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| CN109809368A (en) * | 2019-03-29 | 2019-05-28 | 中国石油工程建设有限公司 | A kind of oxygen-enriched combustion system and technique of the sulphur recovery for coal chemical industry |
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| CN106145055B (en) | 2018-05-15 |
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