CN104512869A - Apparatus for improving sulfur recovery ability of sulfur melting system - Google Patents
Apparatus for improving sulfur recovery ability of sulfur melting system Download PDFInfo
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- CN104512869A CN104512869A CN201310691849.3A CN201310691849A CN104512869A CN 104512869 A CN104512869 A CN 104512869A CN 201310691849 A CN201310691849 A CN 201310691849A CN 104512869 A CN104512869 A CN 104512869A
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- sulfur
- sulfur melting
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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
- C01B17/027—Recovery of sulfur from material containing elemental sulfur, e.g. luxmasses or sulfur containing ores; Purification of the recovered sulfur
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses an apparatus for improving the sulfur recovery ability of a sulfur melting system, and relates to the technical field of recovery of sulfur in the sulfur melting system. The apparatus includes an oxidizing regeneration tank, an intermediate tank, elevated tanks and a sulfur melting kettle which are connected, the overflow opening of the sulfur melting kettle is connected to a semi removal tower through a transfer pump, a cooling pool, a cooling pool pump and a rich liquid tank are orderly connected between the overflow opening of the sulfur melting kettle and the transfer pump, the middle part of the intermediate tank is provided with a liquid outlet, and the outlet of a sulfur foam pump is connected with a liquid transferring tube connected with the rich liquid tube; and a sulfur foam outlet is connected with the sulfur foam pump through a first valve, the outlet of the sulfur foam pump is connected with the elevated tanks through second valves, the liquid outlet of the intermediate tank is connected with the inlet of the sulfur foam pump through a third valve, and the liquid transferring tube is provided with a fourth valve. Compared with apparatuses in the prior art, the apparatus disclosed in the invention allows sulfur foams to be fully settled, separated and concentrated, reduces the load of a sulfur recovery device, and increases the sulfur recovery rate; and a residual liquid generated in the sulfur melting kettle is cooled, settled, separated and recovered to the system, so the resistance of the semi removal is reduced.
Description
Technical field
The present invention relates to the sulfur recovery technical field of sulfur melting system, especially a kind of equipment improving sulfur melting system sulfur recovery ability.
Background technology
Produce the sulfide all containing certain volume quantity in the unstripped gas of synthetic ammonia; the existence of sulfide; poisoning of catalyst can be made, increase corrosion to equipment; in addition; sulphur itself is also a kind of important resource, should reclaim, so; in Ammonia Production technique, usually can carry out desulfurization process to unstripped gas.
Domestic synthetic ammonia installation adopts wet method tannin process to remove the sulfide of unstripped gas mostly, and the doctor solution come from semiwater gas desulphurizing and the doctor solution come from desulfuration of shift gas, through sulfur melting system heating, boil sulphur, separate out elemental sulfur, after cooling, obtain sulphur byproduct.Existing a kind of sulfur melting system comprises oxidation regeneration groove, medial launder, header tank and sulfur melting kettle, header tank and sulfur melting kettle all have steam jacket, the sulphur foam of precipitation is delivered to medial launder through transferpump by oxidation regeneration groove, the sulphur foam of medial launder delivers to a header tank through sulphur foam pump, steam passes in the chuck of header tank, directly entered in sulfur melting kettle by the sulphur foam heated in header tank, lead to as steam heating, boil sulphur, separate out elemental sulfur, and the desulfurization raffinate on sulfur melting kettle top overflows and directly returns desulphurization system.There is following deficiency in this technical scheme: 1, sulphur foam can not get sufficient standing, sedimentation, and concentration is low, is unfavorable for the sulfur recovery of sulfur melting kettle, and sulfur recovery rate is about 30%; 2, from the desulfurization raffinate that sulfur melting kettle overflows, just return desulphurization system without cooling, cause desulphurization system temperature to raise, secondary salt increases, and alkaline consumption increases; Machine utilization weight, easily stifled tower, sulphur recovery efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of equipment improving sulfur melting system sulfur recovery ability, the sulphur foam that this equipment can solve existing sulfur melting system can not get problem that is fully static, sedimentation.
In order to solve the problem, the technical solution used in the present invention is: the equipment of this raising sulfur melting system sulfur recovery ability comprises oxidation regeneration groove, medial launder, header tank and sulfur melting kettle, described header tank and described sulfur melting kettle all have heating unit, described oxidation regeneration groove is connected with described medial launder through pump, the sulphur foam outlet of described medial launder bottom is connected with described header tank through sulphur foam pump, the discharge port of described header tank is connected to described sulfur melting kettle, the overflow port of described sulfur melting kettle is connected to half de-tower through transferpump, cooling tank is connected with in turn between the overflow port of described sulfur melting kettle and described transferpump, cooling tank pump and rich solution groove, the middle part of described medial launder offers liquid outlet, described sulphur foam pump outlet is connected with the tubing being communicated with described rich solution groove, the sulphur foam outlet of described medial launder is connected with described sulphur foam pump through the first valve, described sulphur foam pump outlet is connected with described header tank through the second valve, the liquid outlet of described medial launder is communicated with through the 3rd valve with the entrance of described sulphur foam pump, described tubing is provided with the 4th valve.
In the technical scheme of the equipment of above-mentioned raising sulfur melting system sulfur recovery ability, technical scheme can also be more specifically: be connected with subsider between the overflow port of described sulfur melting kettle and described cooling tank, the top of subsider is provided with overflow port, and the overflow port of subsider is connected to cooling tank.
Further, steam heating coil is provided with in described sulfur melting kettle.
Further, have two described header tanks, the discharge port of each described header tank is provided with valve.
Further, steam heating coil is provided with in described header tank.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, utilize rich solution groove as another medial launder of sulphur foam, increase the pre-settlement treatment space of sulphur foam, take in the middle part of original foam medial launder to foam pump intake header, rich solution groove is caused again in the adapter of foam pump outlet pipe, utilize Valve controlling to realize medial launder and rich solution groove to hocket sedimentation, medial launder upper clear supernate pump is beaten to rich solution groove, and the denseer sulphur foam in bottom is beaten and entered sulfur recovery unit to header tank and process; Sulphur foam has carried out abundant settlement separate, concentration raising, and alleviate the load of sulfur recovery unit, improve the effect of the rate of recovery of sulphur, sulfur recovery rate can reach 50%.
2, sulfur melting kettle produce raffinate from its overflow port through subsider and cooling tank carry out settlement separate, cooling after reclaim again into system, reduce the heat of the system that enters, reduce doctor solution temperature, reduce half de-tower resistance, the secondary salt sodium sulfate generated in system and sulfo-sulphur sodium sulfate drop to 70g/l by original 250g/l; Suspension sulphur drops to 0.5g/l by original 2g/l; Under same load, half de-tower resistance by original annual run to reach 5 months and go up exceed standard and stop tower and clear up, reducing to existing operation a year and a half takes off tower resistance and does not still need to stop tower cleaning in index.
3, sulfur melting kettle inside increases heating coil, sulphur cream fully can be heated evenly, reach raising heat exchange efficiency, reduces steam consumption, improves the rate of recovery of sulphur.
4, two header tanks are used, and built-in heating coil, make sulphur foam obtain sufficient standing, sedimentation, improve sulphur consistency of foam.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the equipment improving sulfur melting system sulfur recovery ability.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
The equipment of the raising sulfur melting system sulfur recovery ability shown in Fig. 1 mainly comprises oxidation regeneration groove 1, medial launder 3, header tank, sulfur melting kettle 7, subsider 8, cooling tank 9 and rich solution groove 11; Wherein, medial launder 2, except the sulphur foam outlet 3-1 being originally opened in bottom, also offers liquid outlet 3-3 in the middle; The header tank of this equipment has two, and these two header tanks are be respectively arranged with steam heating coil 5-1,6-1 of passing into steam in the first header tank 5 and the second header tank 6, two header tanks, and the discharge port of each header tank is respectively arranged with valve 5-2,6-2; The top of sulfur melting kettle 7 is provided with separator, is also provided with the steam heating coil 7-2 passing into steam in separator, and a doctor solution collector is installed on separator top; Cooling tank 9 is pond bodies for the system of digging in bottom surface; Oxidation regeneration groove 1 is connected with medial launder 3 through pump 2, the sulphur foam outlet 3-1 of medial launder 3 bottom is connected with the first header tank 5 and the second header tank 6 through sulphur foam pump 4, the discharge port of the first header tank 5 and the second header tank 6 is connected to sulfur melting kettle 7 through valve 5-2,6-2 respectively, the overflow port 7-1 of sulfur melting kettle 7 is communicated with a subsider 8 through pipeline, the top of this subsider 8 is provided with overflow port, the overflow port 8-1 of subsider is connected to cooling tank 9, cooling tank 9 is communicated with rich solution groove 11 through cooling tank pump 10, and rich solution groove 11 is communicated with half de-tower through transferpump 12; The sulphur foam outlet 3-1 of medial launder 3 is connected with the entrance of sulphur foam pump 4 through the first valve 3-2, the outlet of sulphur foam pump 4 is connected with header tank through the second valve 4-1, the liquid outlet 3-3 of medial launder 3 and the entrance of sulphur foam pump 4 are connected with pipeline, this pipeline is provided with the 3rd valve 3-4, the liquid outlet 3-3 of medial launder 3 is communicated with through the 3rd valve 3-4 with sulphur foam pump 4, the outlet of sulphur foam pump 4 is connected with the tubing 4-2 being communicated with rich solution groove 11, tubing 4-2 is provided with the 4th valve 4-3.
The original state of each valve of this equipment is closure state, during work, oxidation regeneration groove 1 is entered from the doctor solution of the de-tower of synthetic ammonia half and the de-tower of change, sulphur foam through separating out enters medial launder 3 by pump 2, sulphur foam is the dense foam of settlement separate formation and desulfurization clear liquid in medial launder 3, dense foam sinks, open the first valve 3-2 and the second valve 4-1, dense foam is beaten to the first header tank 5 and the second header tank 6 from the sulphur foam outlet 3-1 of medial launder 3 bottom through sulphur foam pump 4 in turn, steam heating coil 5-1, 6-1 respectively logical steam heats sulphur foam, open valve 5-2 in turn, 6-2, the sulphur foam of discharging bottom header tank enters the separator on sulfur melting kettle 7 top, in separator, steam heating coil 7-2 leads to steam when being heated to certain temperature to sulphur foam, the elemental sulfur of molecule is assembled change and is separated with doctor solution greatly, the collector of doctor solution is installed on separator top, collect the solid sulfur particle come constantly to accumulate, constantly heat simultaneously, when being heated to a higher temperature range, the solid sulfur particle of accumulation becomes the sulphur being easy to the molten state flowed, outside drain separator, the sulphur flowed out bottom sulfur melting kettle 7 obtains sulphur byproduct after cooling, desulfurization raffinate in sulfur melting kettle 7 enters from top overflow port 7-1 that subsider 8 is lowered the temperature, sedimentation, the overflow of subsider 8 upper clear supernate enters cooling tank 9 and continues cooling, and then deliver to rich solution groove 11 with cooling tank pump 10, then send half de-systemic circulation desulfurization use back to transferpump 12.
In above process, for carrying out pre-settlement treatment to sulphur foam, medial launder 3 and rich solution groove 11 is utilized to hocket sedimentation, close the first valve 3-2 and the second valve 4-1, then the 3rd valve 3-4 and the 4th valve 4-3 is opened, medial launder 3 top desulfurization clear liquid from liquid outlet 3-2 through sulphur foam pump 4 dozens to rich solution groove 11, then send half de-systemic circulation desulfurization back to transferpump 12 and use.
Claims (5)
1. one kind is improved the equipment of sulfur melting system sulfur recovery ability, comprise oxidation regeneration groove, medial launder, header tank and sulfur melting kettle, described header tank and described sulfur melting kettle all have heating unit, described oxidation regeneration groove is connected with described medial launder through pump, the sulphur foam outlet of described medial launder bottom is connected with described header tank through sulphur foam pump, the discharge port of described header tank is connected to described sulfur melting kettle, the overflow port of described sulfur melting kettle is connected to half de-tower through transferpump, it is characterized in that: between the overflow port of described sulfur melting kettle and described transferpump, be connected with cooling tank in turn, cooling tank pump and rich solution groove, the middle part of described medial launder offers liquid outlet, described sulphur foam pump outlet is connected with the tubing being communicated with described rich solution groove, the sulphur foam outlet of described medial launder is connected with described sulphur foam pump through the first valve, described sulphur foam pump outlet is connected with described header tank through the second valve, the liquid outlet of described medial launder is communicated with through the 3rd valve with the entrance of described sulphur foam pump, described tubing is provided with the 4th valve.
2. the equipment of raising sulfur melting system sulfur recovery ability according to claim 1, it is characterized in that: between the overflow port of described sulfur melting kettle and described cooling tank, be connected with subsider, the top of subsider is provided with overflow port, and the overflow port of subsider is connected to cooling tank.
3. the equipment of raising sulfur melting system sulfur recovery ability according to claim 1 and 2, is characterized in that: be provided with steam heating coil in described sulfur melting kettle.
4. the equipment of raising sulfur melting system sulfur recovery ability according to claim 1 and 2, it is characterized in that: have two described header tanks, the discharge port of each described header tank is provided with valve.
5. the equipment of raising sulfur melting system sulfur recovery ability according to claim 3, is characterized in that: be provided with steam heating coil in described header tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691849.3A CN104512869B (en) | 2013-12-17 | 2013-12-17 | Apparatus for improving sulfur recovery ability of sulfur melting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691849.3A CN104512869B (en) | 2013-12-17 | 2013-12-17 | Apparatus for improving sulfur recovery ability of sulfur melting system |
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| Publication Number | Publication Date |
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| CN104512869A true CN104512869A (en) | 2015-04-15 |
| CN104512869B CN104512869B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310691849.3A Expired - Fee Related CN104512869B (en) | 2013-12-17 | 2013-12-17 | Apparatus for improving sulfur recovery ability of sulfur melting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502300A (en) * | 2015-12-18 | 2016-04-20 | 河北凯跃化工集团有限公司 | Technology and device for separating and melting sulfur |
| CN110237667A (en) * | 2019-07-19 | 2019-09-17 | 中冶焦耐(大连)工程技术有限公司 | Gravity separation processing coking sulphur foam produces the technique and system of sulphur slurry |
| CN111874870A (en) * | 2020-08-11 | 2020-11-03 | 中南大学 | Device and method for regulating and controlling crystallization transformation of element sulfur in high-sulfur slag in zinc smelting |
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|---|---|---|---|---|
| CN101402884A (en) * | 2008-11-16 | 2009-04-08 | 李大路 | Process and apparatus for removing and recovering sulphur in coke oven gas |
| US20110271490A1 (en) * | 2008-03-27 | 2011-11-10 | Brimrock International Inc. | System and method that removes contaminants from sulfur |
| CN102391895A (en) * | 2011-09-30 | 2012-03-28 | 智胜化工股份有限公司 | Method for recycling desulfuration raffinate of semi water gas |
| CN203319701U (en) * | 2013-07-12 | 2013-12-04 | 湖南柳化桂成化工有限公司 | Continuous sulfur melting kettle and sulfur recovery device |
| CN203683089U (en) * | 2013-12-17 | 2014-07-02 | 广西鹿寨化肥有限责任公司 | Apparatus for improving sulfur recovery capacity of sulfur melting system |
-
2013
- 2013-12-17 CN CN201310691849.3A patent/CN104512869B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110271490A1 (en) * | 2008-03-27 | 2011-11-10 | Brimrock International Inc. | System and method that removes contaminants from sulfur |
| CN101402884A (en) * | 2008-11-16 | 2009-04-08 | 李大路 | Process and apparatus for removing and recovering sulphur in coke oven gas |
| CN102391895A (en) * | 2011-09-30 | 2012-03-28 | 智胜化工股份有限公司 | Method for recycling desulfuration raffinate of semi water gas |
| CN203319701U (en) * | 2013-07-12 | 2013-12-04 | 湖南柳化桂成化工有限公司 | Continuous sulfur melting kettle and sulfur recovery device |
| CN203683089U (en) * | 2013-12-17 | 2014-07-02 | 广西鹿寨化肥有限责任公司 | Apparatus for improving sulfur recovery capacity of sulfur melting system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502300A (en) * | 2015-12-18 | 2016-04-20 | 河北凯跃化工集团有限公司 | Technology and device for separating and melting sulfur |
| CN110237667A (en) * | 2019-07-19 | 2019-09-17 | 中冶焦耐(大连)工程技术有限公司 | Gravity separation processing coking sulphur foam produces the technique and system of sulphur slurry |
| CN111874870A (en) * | 2020-08-11 | 2020-11-03 | 中南大学 | Device and method for regulating and controlling crystallization transformation of element sulfur in high-sulfur slag in zinc smelting |
| CN111874870B (en) * | 2020-08-11 | 2023-08-18 | 中南大学 | Device and method for regulating and controlling element sulfur crystallization transformation in zinc smelting high-sulfur slag |
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| Publication number | Publication date |
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| CN104512869B (en) | 2017-01-25 |
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