CN101130429B - Technique for sulfur recovery in process of wet desulphurization - Google Patents
Technique for sulfur recovery in process of wet desulphurization Download PDFInfo
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- CN101130429B CN101130429B CN200710055869A CN200710055869A CN101130429B CN 101130429 B CN101130429 B CN 101130429B CN 200710055869 A CN200710055869 A CN 200710055869A CN 200710055869 A CN200710055869 A CN 200710055869A CN 101130429 B CN101130429 B CN 101130429B
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Abstract
The invention discloses a recycling technique of sulphur in the wet process desulfurizing course, which comprises the following steps: transmitting sulfur foam into the hopper of filter; filtering and separating liquid from sulphur in the sulphur foam; sucking the filtrate into drainage tank on the ceramic filter board under negative pressure and capillary action; sucking the filtrate into the drainage tank to return to desulfuring system to recycle; adsorbing a layer of sulfur filter pie on the surface of ceramic filter board; transmitting the stripped sulphur pie on the surface into sulphur fusing autoclave through scraper at filter drainage position; doing backwash the ceramic filter board in connection with backwash groove; finishing one circulation. The invention uses advanced inorganic ceramic filter to filter the sulphur foam to reduce energy consumption in the sulphur fusing course obviously, which eliminates large amount of residual liquid and side salt in the sulphur fusing course and cooling course respectively to reduce the pollution in the reacting course.
Description
Technical field:
The present invention is the improvement to sulfur removal technology in the existing Chemical Manufacture, and the technology of sulfur recovery in a kind of process of wet desulphurization especially is provided, and belongs to field of environment engineering technology.
Background technology:
At present, fertilizer plant, water-gas in the coke-oven plant, semi-water gas, conversion gas, town gas, biogas, Sweet natural gas is after wet desulphurization, after the regeneration tank flotation, produce a large amount of sulphur foams, contain a large amount of water in the sulphur foam, existing technology all is the sulphur foam directly to be sent to sulfur melting kettle melt sulphur, because evaporation of water can consume a large amount of steams and electric energy, also produce a large amount of raffinates behind the molten simultaneously sulphur, raffinate produces a large amount of Sulfothiorine in cooling, salts such as sodium sulfate, and raffinate is difficult to handle, if raffinate returns desulphurization system and will have a strong impact on the desulphurization system desulfuration efficiency, and can cause stifled tower, influence subsequent production and cause very big financial loss; If be discharged in the environment, can to environment cause very serious once and secondary pollution.Directly molten sulphur is in the past changed in this invention, after the sulphur pneumatic flotation with molten sulphur before, increased this operation of membrane filtration, significantly reduced the amount of raffinate.Use the molten sulphur of dried filter cake can save a large amount of steam simultaneously.To tame gas production rate 50,000 m
3Water-gas/hour, import H
2S content 2.5g/m
3, sulphur output is 3 tons/day, the quantity of steam that needs is 12 tons/day.
Summary of the invention:
The invention provides the technology of sulfur recovery in a kind of process of wet desulphurization, adopt Filtration Adsorption formula principle of work to reclaim sulphur, having overcome molten sulphur formula, to reclaim power consumption, water consumption that technology exists big and produce the shortcoming of raffinate.
The present invention also provides the filter plant that is adapted to above-mentioned technology, has improved desulfuration efficiency, has avoided stifled tower phenomenon to take place.
Technical solution of the present invention is as follows: the sulphur foam is sent in the hopper of filter, ceramic filter plate in the hopper is under negative pressure and wicking action, liquid in the sulphur foam and sulphur are carried out filtering separation, filtrate is drawn onto in the Drainage tank, returning desulphurization system recycles, the surface of ceramic filter plate then is adsorbed with one deck sulphur filter cake, and the sulphur cake on surface is peeled off discharging by the scraper of filter discharge port position with the sulphur cake and sent into sulfur melting kettle; Ceramic filter plate also is connected it is carried out back flushing with the recoil washing trough, thereby finishes a working cycle.
Sulfur recovery system structure of the present invention is as follows: Drainage tank, reservoir, filter, sulfur melting kettle and corresponding pipeline valve thereof constitute, wherein, the bottom of filter is provided with semicircle hopper, splendid attire sulphur foam in it, the hollow rotating cylinder of a sealing is coupling at the hopper edge, the some pumping pipes of the axial uniform distribution of rotating cylinder upper surface, have several liquid pumping holes on each pumping pipe, the corresponding a slice ceramic filter plate that connects of each liquid pumping hole, constitute disc type rotating filter mechanism, the negative pressure pipe of Drainage tank is connected with the hollow rotating cylinder by pipeline, it is carried out negative pressure vacuumizes, motor is connected its rotation of driving with hollow rotating cylinder, the drive ceramic filter plate rotates, and is immersed in to realize filtering function in the sulphur foam in the hopper, is provided with external sulphur scraper plate on the lateral position of relative ceramic membrane filter plate, the edge of hopper, the scraper plate bottom is connected with the sulphur storage tank, and the sulphur in the storage tank can directly be sent into sulfur melting kettle and carry out sulfur recovery; The Drainage tank bottom is provided with drain pipe and links to each other with reservoir, and the filtrate in the reservoir is returned desulphurization system by pipeline.
Also be provided with the recoil tank in the native system and be connected with the pumping pipe of hollow rotating cylinder, control it by valve and open, realize flushing ceramic filter plate by pipeline, pump.
Used ceramic filter plate is a kind of inorganic ceramic film, and pore size is 2～5 microns.
Positively effect of the present invention is: adopt advanced inorganic ceramic filter to carry out the sulphur foamed filter, separate by ceramic filter plate and removed contained moisture content in the foam sulphur, significantly reduced the energy expenditure that is consumed in the molten sulphur process, energy conservation and consumption reduction effects is remarkable.Also eliminate a large amount of raffinates and the raffinate that produce in the molten sulphur process simultaneously and in process of cooling, formed a large amount of secondary salts: Sulfothiorine, sodium sulfate etc., reduced the pollution of reaction process to environment.Filtrate filtered directly enters wet desulfurization system recirculation and uses.Technology work load of the present invention is little, and the place non-secondary pollution can be saved the steam more than 1/3rd.
Description of drawings
Fig. 1 is a desulphurization system structural representation of the present invention.
Embodiment:
Embodiment 1:
According to Fig. 1, constitute sulfur recovery system by Drainage tank 1, reservoir 2, filter 3, sulfur melting kettle 4 and corresponding pipeline valve thereof.
Be provided with semicircle hopper 5 in the bottom of filter 3, link to each other with sulphur foam inlet duct, hollow rotating cylinder 6 is an enclosed construction, be coupling on sealing hopper 5 tops, 6～12 pumping pipes 7 of the axial uniform distribution of rotating cylinder 6 upper surfaces, offer 2～6 liquid pumping holes on each pumping pipe 7 side by side, the corresponding a slice ceramic filter plate 8 that connects of each liquid pumping hole, constitute 2～6 row's disc type rotating filter mechanisms, the negative pressure pipe of Drainage tank 1 is connected with hollow rotating cylinder 6 inner chambers by pipeline, rotating cylinder 6 produce negative pressure with the sulphur foam in the hopper 5 through ceramic filter plate 8 filtering separation, filtrate enters in the Drainage tank 1 by the negative pressure pipe, carry out gas-liquid separation, Drainage tank 1 bottom is provided with motor 9 and is connected its rotation of driving with hollow rotating cylinder 6 rotating shafts, driving ceramic filter plate 8 rotates, be immersed in and realize filtering function in the sulphur foam in the hopper 5, on relative ceramic membrane filter plate 8 lateral positions, the edge of hopper 5, be provided with external sulphur scraper plate 10, scraper plate 10 bottoms are connected with sulphur storage tank 11, and the sulphur in the storage tank 11 can directly be sent into sulfur melting kettle 4 and carry out sulfur recovery; Drainage tank 1 bottom is provided with drain pipe and links to each other with reservoir 2, and the filtrate in the reservoir 1 is returned desulphurization system by pipeline.
Be provided with a ultrasonic generator 12 in hopper 5 inside, ceramic filter plate 8 is carried out ultrasonic washing.
Also be provided with recoil tank 13 in the native system and be connected with the pumping pipe of hollow rotating cylinder 6, control it by valve and open, realize flushing ceramic filter plate 8 by pipeline, pump 14.
Claims (1)
1. sulfur recovery unit in the process of wet desulphurization, it is characterized in that: by Drainage tank, reservoir, filter, sulfur melting kettle and corresponding pipeline valve thereof constitute, the bottom of filter is provided with semicircle hopper, the hollow rotating cylinder of a sealing is coupling at the hopper edge, the some pumping pipes of the axial uniform distribution of rotating cylinder upper surface, have several liquid pumping holes on each pumping pipe, the corresponding a slice ceramic filter plate that connects of each liquid pumping hole, constitute disc type rotating filter mechanism, the negative pressure pipe of Drainage tank is connected with hollow rotating cylinder by pipeline, it is carried out negative pressure vacuumizes, motor is connected with hollow rotating cylinder, the drive ceramic filter plate rotates, be immersed in and realize filtering function in the sulphur foam in the hopper, be provided with external sulphur scraper plate on the lateral position of relative ceramic membrane filter plate, the edge of hopper, the scraper plate bottom is connected with the sulphur storage tank, and the sulphur in the storage tank is directly sent into sulfur melting kettle and carried out sulfur recovery; The Drainage tank bottom is provided with drain pipe and links to each other with reservoir, and the filtrate in the reservoir is returned desulphurization system by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710055869A CN101130429B (en) | 2007-07-13 | 2007-07-13 | Technique for sulfur recovery in process of wet desulphurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710055869A CN101130429B (en) | 2007-07-13 | 2007-07-13 | Technique for sulfur recovery in process of wet desulphurization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101130429A CN101130429A (en) | 2008-02-27 |
| CN101130429B true CN101130429B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710055869A Active CN101130429B (en) | 2007-07-13 | 2007-07-13 | Technique for sulfur recovery in process of wet desulphurization |
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| CN (1) | CN101130429B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870883B (en) * | 2009-04-24 | 2013-07-31 | 中国石油天然气股份有限公司 | Method for producing sulfur through separation, vulcanization and hydrogen oxidation of circling foam |
| CN103007600A (en) * | 2012-12-11 | 2013-04-03 | 新疆农业大学 | Ceramic membrane filter device, dynamic filter-assisting filter device, and application method of ceramic membrane filter device and dynamic filter-assisting filter device |
| CN103285733B (en) * | 2013-06-26 | 2015-12-02 | 贵州兴化化工股份有限公司 | A kind of two-way Application way of wet recycle desulfurization Ethylene recov and device |
| CN103706231B (en) * | 2013-12-30 | 2016-01-13 | 成都易态科技有限公司 | Based on sulphur foam processing method and the equipment of membrane microfiltration technology |
| CN105709486A (en) * | 2016-01-27 | 2016-06-29 | 苏州诚亭自动化设备有限公司 | Outer wheel type filtering machine |
| CN106082137B (en) * | 2016-06-21 | 2018-02-23 | 山东铁雄冶金科技有限公司 | A kind of system and technique for comprehensively utilizing coking low-quality sulfur and doctor solution secondary salt |
| CN107227185B (en) * | 2017-07-11 | 2023-06-23 | 江苏盐城港盐农循环农业有限公司 | Wet desulfurization elemental sulfur filtering integrated equipment for biogas production |
| CN107648917B (en) * | 2017-10-31 | 2023-11-17 | 江苏新宏大集团有限公司 | Semi-hydrated carousel vacuum filter for phosphoric acid |
| CN108178130A (en) * | 2018-01-23 | 2018-06-19 | 北京澳柯清洁煤气工程技术有限公司 | A kind of continuous sulfur melting system and method |
| CN108176118B (en) * | 2018-02-26 | 2023-12-05 | 无锡华盛橡胶新材料科技股份有限公司 | Vacuum filter for insoluble sulfur solid-liquid separation |
| CN108339400B (en) * | 2018-04-19 | 2024-04-09 | 山东钢铁股份有限公司 | Device and method for reducing suspended sulfur concentration of desulfurization liquid |
| CN112093778A (en) * | 2020-10-15 | 2020-12-18 | 中冶焦耐(大连)工程技术有限公司 | Treatment process for by-product low-quality sulfur in coke oven gas desulfurization process |
| CN112680256B (en) * | 2020-12-14 | 2022-06-14 | 长春东狮科技(集团)有限责任公司 | Device and method for wet dechlorination and desulfurization of blast furnace gas |
| CN113460970A (en) * | 2021-06-29 | 2021-10-01 | 中南大学 | Device and method for green separation and purification of sulfur in desulfurization waste liquid |
| CN113582373A (en) * | 2021-06-29 | 2021-11-02 | 中南大学 | Device and method for low-carbon separation and purification of sulfur in desulfurization waste liquid |
| CN113415787A (en) * | 2021-06-29 | 2021-09-21 | 中南大学 | Device and method for efficiently separating and purifying sulfur in desulfurization waste liquid |
| CN115944972B (en) * | 2023-03-14 | 2023-06-02 | 隆化县新村矿业有限公司 | Disc type filter device for producing phosphorus fine powder and filter process thereof |
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| CN101130429A (en) | 2008-02-27 |
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Address after: 130000, 9:5km, feldspar Road, Erdao District, Changchun City, Jilin Province Patentee after: Changchun Dongshi Technology (Group) Co., Ltd Address before: 130022 No. 325, Sendai Avenue, Changchun, Jilin Patentee before: CHANGCHUN DONGSHI TECHNOLOGY AND TRADING INDUSTRIAL Co.,Ltd. |
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