CN111807331B - High-efficiency energy-saving sulfur purification device and technology thereof - Google Patents
High-efficiency energy-saving sulfur purification device and technology thereof Download PDFInfo
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- CN111807331B CN111807331B CN202010623343.9A CN202010623343A CN111807331B CN 111807331 B CN111807331 B CN 111807331B CN 202010623343 A CN202010623343 A CN 202010623343A CN 111807331 B CN111807331 B CN 111807331B
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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
- C01B17/0232—Purification, e.g. degassing
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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
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Abstract
The invention relates to the technical field of sulfur purification, in particular to a high-efficiency energy-saving sulfur purification device and a process thereof, wherein the device comprises the following steps: s1, introducing deionized water into a water storage tank for standby; s2, placing the crude sulfur in a stirring kettle for standby; s3, introducing water in the water storage tank into a stirring kettle, and stirring and dissolving the crude sulfur; s4, conveying the crude sulfur dissolved in the stirring kettle to a heater through a conveying pump for heating, wherein the heating temperature is 130 ℃; s5, conveying the crude sulfur dissolved in the stirring kettle into a three-phase separator through a conveying pump, and heating the three-phase separator through steam to form liquid sulfur; s6, discharging the liquid sulfur in the three-phase separator through the first outlet, discharging the steam through the second outlet, and discharging the sewage dissolved with impurities through the third outlet. The invention has the characteristics of simple process, high efficiency, energy conservation and high degree of automation.
Description
Technical Field
The invention relates to the technical field of sulfur purification, in particular to a high-efficiency energy-saving sulfur purification device and a process thereof.
Background
Sulfur is an important chemical raw material and is widely applied to industrial departments of chemical industry, metallurgy, pesticides, rubber, fuel, papermaking and the like. The sulfur demand of China is large, but the sulfur resources are less, and the market supply gap is large. In addition, with the development of global sulfur-containing crude oil and natural gas resources in large quantities, sulfur recovery units are indispensable accessory units for large coal chemical plants, natural gas purification plants, oil refineries and petrochemical plants in processing coal, sulfur-containing natural gas and sulfur-containing crude oil. In recent years, the coal chemical industry in China develops rapidly, and the recovery condition of sulfur in coal is attracting attention.
The existing sulfur separation system generally only separates waste water from liquid sulfur after crude sulfur is melted, and a large amount of heat still exists in the process of melting sulfur and in the waste water, so that the whole energy is wasted.
Disclosure of Invention
Aiming at the defects existing in the prior art, the first object of the invention is to provide a high-efficiency energy-saving sulfur purification device which has the characteristic of improving the utilization rate of heat energy.
The second purpose of the invention is to provide a high-efficiency energy-saving sulfur purification process, which has the characteristics of simple process, high efficiency, energy saving and high automation degree.
The first object of the invention is achieved by the following technical scheme:
the utility model provides a high-efficient energy-conserving sulphur purification device, includes storage water tank, with the stirred tank of storage water tank intercommunication, with the separator of stirred tank intercommunication, set up heater and the delivery pump between stirred tank and separator, the storage water tank be connected with the heat recovery spare of separator intercommunication.
Through adopting above-mentioned technical scheme, crude sulfur is thrown into stirred tank simultaneously and is let in stirred tank with the water in the storage water tank, utilizes the delivery pump to get into in the heater and heat into liquid sulfur, and the rethread delivery pump carries in to the separator, separates liquid sulfur and waste liquid, accomplishes the purification to sulfur promptly. Because the temperature of the heated liquid sulfur is higher, a large amount of heat is generated when the heated liquid sulfur only enters the separator, and the separated liquid sulfur only occupies a part of heat, and meanwhile, the waste liquid also occupies a part of heat. Therefore, the energy except the liquid sulfur in the separator is used as a heat recovery part, the water storage tank can be preheated, so that the temperature of the crude sulfur in the stirring kettle is raised, and the heating amount of the follow-up heater to the liquid sulfur in unit volume can be reduced.
The invention is further configured to: the separator is a three-phase separator, and comprises a first outlet for discharging liquid sulfur, a second outlet for discharging steam and a third outlet for discharging sewage.
By adopting the technical scheme, the three-phase separator can better separate the liquid sulfur, steam and waste liquid, reduce impurities in the liquid sulfur and improve the purity of the liquid sulfur.
The invention is further configured to: the heat energy recovery piece comprises an exhaust pipe, one end of which is connected with the second outlet and penetrates through the water storage tank, and a blow-down pipe, one end of which is connected with the third outlet and penetrates through the water storage tank.
By adopting the technical scheme, the water storage tank can be heated by utilizing the heat energy of steam and the heat energy of sewage, and the recovery rate of the heat energy can be greatly improved on one hand; on the other hand, the heating rate of the deionized water in the water storage tank is increased, so that the whole production period is shortened.
The invention is further configured to: one end of the exhaust pipe is communicated with the stirring kettle.
Through adopting above-mentioned technical scheme, steam can directly get into the stirred tank along the blast pipe in, carries out direct heating to the liquid sulphur in the stirred tank to further promote the rate of recovery of heat energy, also further increased simultaneously to the heating rate of liquid sulphur.
The invention is further configured to: the part of the exhaust pipe, which is positioned on the stirring kettle, is provided with a plurality of explosion-proof holes, and a plug which is inserted into the explosion-proof holes is connected to the outer turnover of the exhaust pipe.
Through adopting above-mentioned technical scheme, when the steam pressure in the blast pipe is too big, can dash open the end cap for steam is discharged from explosion-proof downthehole, thereby promotes steam transmission's security.
The invention is further configured to: the exhaust pipe is connected with a reinforcing sleeve, the reinforcing sleeve is provided with a jack for plugging the plug, and the jack is communicated with the explosion-proof hole; the plug is inserted with a rotating shaft, and the rotating shaft is accommodated in the jack.
Through adopting above-mentioned technical scheme, the setting of strengthening the cover can supply the pivot fixed to prevent to destroy the structural strength of blast pipe.
The invention is further configured to: the rotating shaft is sleeved with a torsion spring, one end of the torsion spring is abutted with the plug, and the other end of the torsion spring is abutted with the hole wall of the jack.
By adopting the technical scheme, the arrangement of the torsion spring can improve the blocking strength of the plug on one hand, so that the plug is not easy to be flushed away, and the bearing pressure of the pipeline for conveying steam is improved; on the other hand, the arrangement of the torsion spring can enable the plug to plug the explosion-proof hole again after pressure balance, so that the self-sealing effect is achieved.
The invention is further configured to: the stirring kettle is internally provided with an anti-overflow plate, a plurality of anti-overflow holes are formed in the anti-overflow plate, and the anti-overflow holes are in an inverted cone shape.
Through adopting above-mentioned technical scheme, steam lets in stirred tank through the blast pipe, can produce the bubble at the in-process of letting in, and the bubble can be eliminated in the setting of spill-proof plate to the liquid level in the stirred tank of being convenient for control promotes the reaction stability in the stirred tank. The overflow preventing hole is in an inverted cone shape, namely the aperture of the overflow preventing hole is gradually reduced from top to bottom, and sulfur above the overflow preventing plate can be gradually compressed until the sulfur is better dissolved after passing through the overflow preventing hole.
The invention is further configured to: an overflow plate is vertically arranged in the separator and is positioned between the first outlet and the third outlet.
Through adopting above-mentioned technical scheme, the liquid sulfur after the heater heating is through the delivery pump in being sent into the three-phase separator to along the diapire in the three-phase separator towards the overflow board removal, the liquid sulfur is stopped by the overflow board when removing the overflow board, and the waste liquid gradually piles up and is higher than the overflow board top, and then overflows to the opposite side of overflow board from the overflow board top, consequently can carry out the pre-separation to liquid sulfur and waste liquid in the three-phase separator inside, thereby promote the purity of sulphur purification.
The invention is further configured to: the bottom of the overflow plate is connected with the bottom wall in the separator in a sealing way.
By adopting the technical scheme, the overflow plate is simply, reliably and conveniently installed in a welding mode.
An efficient and energy-saving sulfur purification process comprises the following steps:
s1, introducing deionized water into a water storage tank for standby;
s2, placing the crude sulfur in a stirring kettle for standby;
s3, introducing water in the water storage tank into a stirring kettle, and stirring and dissolving the crude sulfur;
s4, conveying the crude sulfur dissolved in the stirring kettle to a heater through a conveying pump for heating, wherein the heating temperature is 130 ℃;
s5, conveying the crude sulfur dissolved in the stirring kettle into a three-phase separator through a conveying pump, and heating the three-phase separator through steam to form liquid sulfur;
s6, discharging liquid sulfur in the three-phase separator through a first outlet, discharging steam through a second outlet, and discharging sewage dissolved with impurities through a third outlet; wherein, the liquid sulfur is cooled and collected after being discharged through the first outlet; steam enters the exhaust pipe from the second outlet, the deionized water in the water storage tank is heated at the part passing through the water storage tank, and the steam is introduced into the stirring kettle from the other end of the exhaust pipe; the sewage enters the sewage drain pipe from the third outlet, the deionized water in the water storage tank is heated at the part passing through the water storage tank, and the sewage is discharged to the sewage pool from the other end of the sewage drain pipe.
By adopting the technical scheme, on one hand, the heat energy of steam and the heat energy of sewage can be collected and utilized again, so that the energy is saved and the environment is protected; on one hand, the deionized water in the water storage tank can be preheated, the temperature of the deionized water entering the stirring kettle is increased, so that the crude sulfur is more fully dissolved in the stirring kettle, and the integral purification efficiency is improved; in addition, each equipment is directly connected by the pipeline, so the automatic control device has the characteristics of simple process, high efficiency, energy conservation and high automation degree.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the heat energy of steam and waste water in the three-phase separator is recycled to preheat the water storage tank, so that the crude sulfur starts to heat in the stirring kettle, the heating amount of the follow-up heater to the liquid sulfur in unit volume can be reduced, and the overall processing efficiency is improved while energy is saved.
2. Each equipment is directly connected by the pipeline, and the degree of automation is high.
3. The liquid sulfur heated by the heater is sent into the three-phase separator through the conveying pump and moves towards the overflow plate along the bottom wall in the three-phase separator, the liquid sulfur is blocked by the overflow plate when moving to the overflow plate, and the waste liquid is gradually accumulated and higher than the top end of the overflow plate, and then overflows from the top of the overflow plate to the other side of the overflow plate, so that the liquid sulfur and the waste liquid can be separated in advance in the three-phase separator, and the purity of sulfur purification is improved.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of the stirred tank of the present invention;
FIG. 3 is a cross-sectional view of a stirred tank of the present invention;
FIG. 4 is an exploded view of the exhaust pipe and plug of the present invention;
fig. 5 is a schematic structural view of the plug of the present invention.
In the figure: 1. a water storage tank; 2. stirring kettle; 3. a separator; 4. a heater; 5. a transfer pump; 6. a heat energy recovery member; 7. a first outlet; 8. a second outlet; 9. a third outlet; 10. an exhaust pipe; 11. a blow-down pipe; 12. an overflow plate; 13. explosion-proof holes; 14. a plug; 15. a reinforcing sleeve; 16. a jack; 17. an anti-overflow plate; 18. an overflow preventing hole; 19. a rotating shaft; 20. and (3) a torsion spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the invention discloses a high-efficiency energy-saving sulfur purification device, which comprises a water storage tank 1, a stirring kettle 2 communicated with the water storage tank 1, a separator 3 communicated with the stirring kettle 2, a heater 4 and a conveying pump 5, wherein the heater 4 is arranged between the stirring kettle 2 and the separator 3, and the water storage tank 1 is connected with a heat energy recovery piece 6 communicated with the separator 3.
The separator 3 is a three-phase separator 3, the three-phase separator 3 comprising a first outlet 7 for discharging liquid sulphur, a second outlet 8 for discharging steam and a third outlet 9 for discharging sewage. The heat recovery member 6 comprises an exhaust pipe 10 having one end connected to the second outlet 8 and coiled through the water storage tank 1, and a drain pipe 11 having one end connected to the third outlet 9 and coiled through the water storage tank 1.
Referring to fig. 1 and 2, the drain pipe 11 is connected to a sewage tank (not shown) to prevent pollution to the liquid sulfur. One end of the exhaust pipe 10 is communicated with the stirring kettle 2, and the steam can be directly introduced into the stirring kettle 2 to heat the liquid sulfur in the stirring kettle 2 after heating the water storage tank 1.
Referring to fig. 3 and 4, a part of the exhaust pipe 10, which is positioned on the stirring kettle 2, is provided with a plurality of explosion-proof holes 13, and a plug 14 which is inserted into the explosion-proof holes 13 is connected to the outer periphery of the exhaust pipe 10 in a rotating manner. The exhaust pipe 10 is welded with a reinforcing sleeve 15, the reinforcing sleeve 15 is provided with a jack 16 for plugging the plug 14, and the jack 16 is communicated with the explosion-proof hole 13.
Referring to fig. 4 and 5, in particular, the plug 14 is L-shaped, and has a shaft 19 inserted into one end thereof, and the shaft is accommodated in the receptacle 16. The rotating shaft 19 is sleeved with a torsion spring 20, one end of the torsion spring 20 is abutted with the plug 14, and the other end of the torsion spring is abutted with the hole wall of the jack 16.
Referring to fig. 3, the stirring kettle 2 is internally provided with an anti-overflow plate 17, and one end of the exhaust pipe 10 extending into the stirring kettle 2 penetrates through the anti-overflow plate 17 and is positioned below the anti-overflow plate 17. The spill plate 17 is provided with a plurality of spill holes 18, and the spill holes 18 are in an inverted cone shape. Specifically, the peripheral surface of the spill plate 17 is welded to the inner peripheral surface of the agitation tank 2.
Referring to fig. 1, the heater 4 is a steam heater 4, and has the advantages of uniform heating, sufficient heating, low manufacturing cost, simple structure and high safety.
An overflow plate 12 is vertically arranged in the three-phase separator 3, the overflow plate 12 is positioned between the first outlet 7 and the third outlet 9, and in particular the bottom of the overflow plate 12 is welded with the bottom wall in the three-phase separator 3.
A sulfur purification process using the purification device comprises the following steps:
s1, introducing deionized water into a water storage tank 1 for standby;
s2, placing the crude sulfur in a stirring kettle 2 for standby;
s3, introducing water in the water storage tank 1 into the stirring kettle 2, and stirring and dissolving the crude sulfur;
s4, conveying the crude sulfur dissolved in the stirring kettle 2 to a heater 4 through a conveying pump 5 for heating, wherein the heating temperature is 130 ℃;
s5, conveying the crude sulfur dissolved in the stirring kettle 2 into the three-phase separator 3 through a conveying pump 5, and heating the three-phase separator 3 through steam to form liquid sulfur;
s6, discharging liquid sulfur in the three-phase separator 3 through a first outlet 7, discharging steam through a second outlet 8, and discharging sewage dissolved with impurities through a third outlet 9; wherein, the liquid sulfur is cooled and collected after being discharged through the first outlet 7; steam enters an exhaust pipe 10 from a second outlet 8, heats the water storage tank 1 at a part coiled in the water storage tank 1, and is introduced into the stirring kettle 2 from the other end of the exhaust pipe 10; the sewage enters the sewage discharge pipe 11 from the third outlet 9, heats the water storage tank 1 at the part coiled in the water storage tank 1, and is discharged from the other end of the sewage discharge pipe 11.
The implementation principle of the invention is as follows: the crude sulfur is put into the stirring kettle 2, meanwhile, water in the water storage tank 1 is introduced into the stirring kettle 2, the crude sulfur enters the heater 4 by utilizing the conveying pump 5 to be heated to form liquid sulfur, then the liquid sulfur is conveyed into the separator 3 by the conveying pump 5, the liquid sulfur is blocked by the overflow plate 12 when moving to the overflow plate 12, the waste liquid is gradually accumulated and higher than the top end of the overflow plate 12, and then overflows from the top of the overflow plate 12 to the other side of the overflow plate 12, and the liquid sulfur and the waste liquid are separated.
The separated liquid sulfur is discharged from a first outlet 7 for cooling and collection; the steam is discharged from the three-phase separator 3 through the second outlet 8 and enters the exhaust pipe 10, the deionized water in the water storage tank 1 is heated when passing through the water storage tank 1, and finally, the deionized water is introduced into the stirring kettle 2 through the other end of the exhaust pipe 10; the sewage with dissolved impurities is discharged from the third outlet 9 into the sewage drain pipe 11, heats the deionized water in the water storage tank 1 when passing through the water storage tank 1, and is finally discharged from the other end of the sewage drain pipe 11 to the sewage pool.
The heat energy of steam and waste water in the three-phase separator 3 is recycled, the water storage tank 1 is preheated, so that the temperature of crude sulfur in the stirring kettle 2 is raised, the heating amount of the follow-up heater 4 to the liquid sulfur in unit volume can be reduced, and the overall processing efficiency is improved while energy is saved. Meanwhile, each device is directly connected by the pipeline, so that the automation degree is high.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (4)
1. The utility model provides a high-efficient energy-conserving sulphur purification device, includes storage water tank (1), stirred tank (2) with storage water tank (1) intercommunication, separator (3) with stirred tank (2) intercommunication, heater (4) and delivery pump (5) that set up between stirred tank (2) and separator (3), characterized in that, storage water tank (1) is connected with heat recovery spare (6) with separator (3) intercommunication; the separator (3) is a three-phase separator, and the separator (3) comprises a first outlet (7) for discharging liquid sulfur, a second outlet (8) for discharging steam and a third outlet (9) for discharging sewage; the heat energy recovery piece (6) comprises an exhaust pipe (10) with one end connected to the second outlet (8) and penetrating through the water storage tank (1), and a blow-down pipe (11) with one end connected to the third outlet (9) and penetrating through the water storage tank (1); the part of the exhaust pipe (10) positioned on the stirring kettle (2) is provided with a plurality of explosion-proof holes (13), and a plug (14) which is inserted into the explosion-proof holes (13) is connected to the outer periphery of the exhaust pipe (10) in a rotating way; the exhaust pipe (10) is connected with a reinforcing sleeve (15), the reinforcing sleeve (15) is provided with a jack (16) for plugging the plug (14), and the jack (16) is communicated with the explosion-proof hole (13); the plug (14) is inserted with a rotating shaft, and the rotating shaft (19) is accommodated in the jack (16); the rotating shaft (19) is sleeved with a torsion spring (20), one end of the torsion spring (20) is abutted with the plug (14), and the other end of the torsion spring is abutted with the hole wall of the jack (16).
2. The energy efficient sulfur purification apparatus according to claim 1, wherein: an anti-overflow plate (17) is arranged in the stirring kettle (2), a plurality of anti-overflow holes (18) are formed in the anti-overflow plate (17), and the anti-overflow holes (18) are in an inverted cone shape.
3. The energy efficient sulfur purification apparatus according to claim 1, wherein: an overflow plate (12) is vertically arranged in the separator (3), and the overflow plate (12) is positioned between the first outlet (7) and the third outlet (9).
4. A sulfur purification process using the purification apparatus as claimed in any one of claims 1 to 3, characterized in that: the method comprises the following steps:
s1, introducing deionized water into a water storage tank (1) for standby;
s2, placing the crude sulfur in a stirring kettle (2) for standby;
s3, introducing water in the water storage tank (1) into the stirring kettle (2), and stirring and dissolving the crude sulfur;
s4, conveying the crude sulfur dissolved in the stirring kettle (2) to a heater (4) through a conveying pump (5) to heat to form liquid sulfur, wherein the heating temperature is 130 ℃;
s5, conveying the liquid sulfur into the separator (3) through the conveying pump (5);
s6, discharging the liquid sulfur in the separator (3) through a first outlet (7), discharging the steam through a second outlet (8), and discharging the sewage dissolved with impurities through a third outlet (9); wherein, the liquid sulfur is cooled and collected after being discharged through a first outlet (7); steam enters an exhaust pipe (10) from a second outlet (8), the deionized water in the water storage tank (1) is heated at the part penetrating through the water storage tank (1), and the deionized water is introduced into the stirring kettle (2) from the other end of the exhaust pipe (10); the sewage enters the sewage drain pipe (11) from the third outlet (9), the deionized water in the water storage tank (1) is heated at the part penetrating through the water storage tank (1), and the sewage is discharged to the sewage pool from the other end of the sewage drain pipe (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010623343.9A CN111807331B (en) | 2020-06-30 | 2020-06-30 | High-efficiency energy-saving sulfur purification device and technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010623343.9A CN111807331B (en) | 2020-06-30 | 2020-06-30 | High-efficiency energy-saving sulfur purification device and technology thereof |
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| CN111807331A CN111807331A (en) | 2020-10-23 |
| CN111807331B true CN111807331B (en) | 2023-06-13 |
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| CN101591006A (en) * | 2009-06-26 | 2009-12-02 | 美景（北京）环保科技有限公司 | Purifying sulfur containing salts and device |
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