CN200949047Y - Sulfur melting still - Google Patents
Sulfur melting still Download PDFInfo
- Publication number
- CN200949047Y CN200949047Y CN 200620127540 CN200620127540U CN200949047Y CN 200949047 Y CN200949047 Y CN 200949047Y CN 200620127540 CN200620127540 CN 200620127540 CN 200620127540 U CN200620127540 U CN 200620127540U CN 200949047 Y CN200949047 Y CN 200949047Y
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- sulfur melting
- sulfur
- kettle
- chuck
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Abstract
The utility model discloses a sulfur melter, refers to a sulfur recovery device which uses sulfur foam yielded from the wet desulphurization. The device is used for sulfurous gas and is used in fertilizer plants, chemical plants, city gas, and coke-oven plants. The utility model solves the problem of steam consuming in large quantities for existing sulfur melters, in particular the problem that clear liquid which flows out of the sulfur melter readily lead side reaction. The sulfur melter comprises an autoclave body, of which the middle part is a separating section and bottom is a sulfur melting section. Jackets are arranged in the separating section and sulfur melting section, and a separating board is arranged among the jacket of the separating section and the jacket of the sulfur melting section. A heat exchanger is arranged in the upper part of the autoclave body. Because the jackets of the separating section and the sulfur melting section are separate, the sulfur melter can control the temperature of the separating section better, enable the separation of liquid at a lower temperature, avoid producing side reaction in the doctor solution when heated to high temperature, reduce the influence on the desulphurization system, at the same time increase the heat exchanger, and reduce the steam consumption effectively.
Description
Technical field
The utility model relates to and is used for fertilizer plant, chemical plant, town gas, coke-oven plant etc. to the device that the sulfurous gas use sulphur foam that wet desulphurization produced carries out sulfur recovery, is specially a kind of sulfur melting kettle.
Background technology
Because country is more and more higher to environmental requirement, the zero release of middle or small nitrogenous fertilizer desulphurization system has become trend, China's medium and small nitrogen fertilizer industry at present the sulphur foamy is reclaimed mainly be to adopt mechanical filter after molten sulphur and two kinds of methods of continuous sulfur melting.Liquid that mechanical filter reclaims owing to its filtration back is compared with lean solution and is not changed, desulphurization system there is not influence substantially, and adopted by many factories, shortcoming is replaced by continuous sulfur melting gradually but, complicated operation big because of its investment, labour intensity are big, operation (maintenance) cost height, doctor solution loss are big etc. alwaysThe continuous sulfur melting still is simple to operate with it, and operation (maintenance) cost is low and promoted gradually.Existing continuous sulfur melting still comprises the middle part and is the disengaging zone, the bottom is the kettle of sulfur melting region, the disengaging zone of kettle and sulfur melting region section are provided with chuck, feed steam during work in the chuck, the sulphur foam that adds from kettle top is heated by chuck, according to the sulphur foam when being heated to certain temperature when (70-80 ℃), the sulphur lather collapse is an elemental sulfur, and the principle that the proportion of sulphur is bigger than doctor solution, sulphur after the disengaging zone obtains separating is precipitated to the sulfur melting region of autoclave body bottom and discharges at the bottom of still in fusion under the further heating of chuck (melt temperature 120-130 ℃), and the clear liquid after the desulfurization rises and discharges from kettle top.The disengaging zone and the sulfur melting region of existing sulfur melting kettle are by same chuck heat supply, be difficult to equilibrium separation temperature and melt temperature, in order to make the sulphur fusion that is deposited in sulfur melting region, chuck will have higher temperature, so not only consume a large amount of steam, the more important thing is owing to flow out the clear liquid of sulfur melting kettle and easily produce side reaction (the existing effusive clear liquid temperature of sulfur melting kettle is above 150 ℃) through heat, havoc the composition of doctor solution, thereby the regeneration to doctor solution impacts, reduced the quality of doctor solution to a certain extent, as it is improper to operate control, make the desulphurization system worsening condition easily, the corrosion aggravation, the tower resistance rises, and threatens the long-period stable operation of producing.This problem fails effectively to solve at present on sulfur melting kettle.
Summary of the invention
The utility model is big in order to solve existing sulfur melting kettle steam consumption, particularly easily produces the problem of side reaction owing to flow out the clear liquid of sulfur melting kettle through heat, and a kind of improved sulfur melting kettle is provided.
The utility model is to adopt following technical scheme to realize: a kind of sulfur melting kettle, comprising the middle part is the kettle of sulfur melting region for disengaging zone, bottom, the disengaging zone of kettle and sulfur melting region section are provided with chuck, be provided with dividing plate between the chuck of the chuck of separate sections and sulfur melting region section, be that chuck on separate sections and the sulfur melting region section is isolated mutually, the chuck of the chuck of separate sections and sulfur melting region section does not communicate, and each has separately steam-in and (phlegma) outlet.Like this, can control the jacket temperature of disengaging zone and sulfur melting region respectively, make disengaging zone and sulfur melting region be in suitable temperature respectively, avoid the desulfurization clear liquid to produce side reaction because of heat.
Sulfur melting region at autoclave body bottom is provided with the boosting pipe that (a plurality of) communicate with its chuck, to increase heat interchanging area, the elemental sulfur of post precipitation can be melted rapidly and discharges.The boosting pipe is at least two-layer, and the boosting pipe between adjacent layers is vertical mutually.
The top of kettle is provided with interchanger.The thermally desulfurizing clear liquid that rises is discharged kettle through interchanger.The thermally desulfurizing clear liquid that rises and the sulphur foam (liquid) of adding are realized thermal exchange on interchanger, promptly the sulphur foam (liquid) that adds absorbs the heat of the thermally desulfurizing clear liquid that rises, the sulphur foam of adding is preheated before entering the disengaging zone, thereby further save steam consumption.
Sulfur melting kettle described in the utility model is owing to the chuck of disengaging zone and sulfur melting region is separated from each other, can control the temperature of disengaging zone preferably, liquid is separated under lower temperature, doctor solution generation side reaction when having avoided heat, reduced influence to desulphurization system, increased interchanger simultaneously, effectively reduced the consumption of steam, sulfur melting kettle described in the utility model in addition is in operational process, normal running only need be regulated two pressure (vapor pressures, the still internal pressure), a temperature (disengaging zone temperature) is controlled two valves and just can be finished entire operation, and is simple to operate, easy to use, reduced labor intensity of operating personnel.Liquid behind the molten sulphur can all reclaim, and has reduced the usage quantity of catalyzer, has realized the zero release of desulphurization system.
It is long that sulfur melting kettle described in the utility model has solved doctor solution time of heat and stop in still preferably, and the shortcoming of side reaction takes place easily, makes sulphur foam even heating and realize low ternperature separation process.Both saved the consumption of steam, improved the quality of clear liquid again effectively, the continuous sulfur melting technology is further enhanced, for the optimization and the improvement of desulphurization system condition provides assurance.
Description of drawings
Fig. 1 is the structural representation of sulfur melting kettle described in the utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the D-D sectional view of Fig. 1;
Fig. 6 is the E-E sectional view of Fig. 1;
Fig. 7 has the sulfur melting kettle structural representation of flow direction for mark;
Among the figure: 1-disengaging zone, 2-sulfur melting region, 3-kettle, 4-separate sections chuck, 5-sulfur melting region section chuck, 6-boosting pipe, the last floral disc of 7-, floral disc under the 8-, 9-heat transfer tube, the 10-cover, 11-traverse baffle, 12-press from both sides tube, the 13-ring flat-plate, three layers of horn-like simplified inclined tube of 14-, 15-temperature tube, the 16-safety valve, the 17-dividing plate.
Embodiment
A kind of sulfur melting kettle, comprising the middle part is the kettle 3 of sulfur melting region 2 for disengaging zone 1, bottom, the disengaging zone of kettle and sulfur melting region section are provided with chuck, are provided with dividing plate 17 between the chuck 4 of separate sections and the chuck 5 of sulfur melting region section, and promptly the chuck the 4, the 5th of separate sections and sulfur melting region section is isolated mutually.Sulfur melting region at autoclave body bottom is provided with the boosting pipe 6 that (a plurality of) communicate with its chuck.Boosting Guan Weisi layer, the boosting pipe between adjacent layers is vertical mutually.The top of kettle is provided with interchanger.The upper and lower floral disc 7,8 that described interchanger comprises and inner wall of kettle is fixed, the edge has liquid distributing hole and be fixed in heat transfer tube 9 between the upper and lower floral disc is fixed with the cover 10 that sealing covers the heat transfer tube port and is connected with liquid discharge pipe on the last floral disc 7.For realizing abundant heat exchange, be provided with the traverse baffle 11 that periphery is connected with inner wall of kettle, the center has fluid hole at the middle part of heat transfer tube 9.Be provided with below following floral disc 8 that the upper end is fixed with following floral disc, the inner chamber area contains the folder tube 12 that cover the interchanger port, the sulphur foam press from both sides tins 12 and the disengaging zone chuck 4 of kettle between can access more uniform heating.Between folder tube 12 lower ends and inner wall of kettle, be fixed with the ring flat-plate 13 that has liquid distributing hole on it, be used for retaining clip tube and distribution liquid better.Be fixed with three layers of horn-like cylindrical shell inclined tube 14 at folder tube 12 inner chambers, be used for making rapidly molten sulfur to carry out secondary separation, cause the sedimentary sulfur granules that is not able to do in time further to obtain separating, guarantee to reclaim solution quality.The separate sections of kettle is provided with temperature tube 15.Be provided with safety valve 16 at the kettle top.
When using the work of this sulfur melting kettle, enter still in liquid distributing hole through last floral disc 7 on to interchanger by pump through sulfur melting kettle sulphur foam mouth g from the sulphur foam of desulphurization system, and after realizing abundant heat exchange behind traverse baffle 11 bafflings, liquid distributing hole under the warp on the floral disc 8 is to the space between separate sections chuck 4 and the folder tube 12, by the steam even heating in the chuck 4 to 70-80 ℃, enter disengaging zone 1 in the still, sulfur granules is assembled the bottom that change is sunken to still greatly, under the effect of sulfur melting region chuck 5 and boosting pipe 6, sulfur melting region reaches fast and remains on 120-130 ℃, making the rapid fusion of the sulfur granules that is sunken under the still is liquid sulfur, begins out sulfur discharging valve d when a certain amount of and puts sulphur and reclaim from the mould ingot when running up to.Solution after the initial gross separation rises to quiet liquid zone (not heating zone) through three layers of horn-like cylindrical shell inclined tube 14, makes molten sulfur carry out secondary separation rapidly, causes the sedimentary sulfur granules that is not able to do in time further to obtain separating, and guarantees to reclaim solution quality.The liquid of separator well enters and is absorbed sensible heat in the Tube Sheet of Heat Exchanger after liquid discharge pipe a recycles then.Enter through steam inlet e1, e2 respectively from the steam of boiler and to become phlegma after chuck 4, chuck 5 and auxiliary heat transfer tube discharge sensible heat (latent heat) and flow out recovery through outlet C1, C2.Can prevent the equipment superpressure by regulating safety valve 16, can measure the temperature of disengaging zone at temperature tube 15 places, be used for the temperature of controlled liq in the disengaging zone.
The technical indicator of this sulfur melting kettle is as follows:
External vapor pressure :≤0.5Mpa
Parting liquid temperature: 70-80 ℃
Sulfur melting kettle chuck pressure: 0.2-0.4Mpa
Put sulphur temperature: 120-140 ℃
Go out liquid temp :≤90 ℃
Sulfur melting kettle internal pressure: 0.3-0.4Mpa
Still inside and outside differential pressure: 0.2Mpa
Finished product purity: 〉=99%
Raffinate suspension sulphur :≤0.5g/m
3
Processing power: 1000-2000 ton/year
Can carry out continuously during this equipment work, if the sulphur foam is on the low side, this process can be interrupted and be carried out.
Claims (10)
1, a kind of sulfur melting kettle, comprising the middle part is the kettle (3) of sulfur melting region (2) for disengaging zone (1), bottom, the disengaging zone of kettle and sulfur melting region section are provided with chuck, it is characterized by: be provided with dividing plate (17) between the chuck (5) of chuck of separate sections (4) and sulfur melting region section.
2, a kind of sulfur melting kettle as claimed in claim 1 is characterized by: the sulfur melting region at autoclave body bottom is provided with the boosting pipe (6) that communicates with its chuck.
3, a kind of sulfur melting kettle as claimed in claim 2 is characterized by: boosting pipe (6) is at least two-layer, and the boosting pipe between adjacent layers is vertical mutually.
4, a kind of sulfur melting kettle as claimed in claim 3 is characterized by: boosting Guan Weisi layer, the boosting pipe between adjacent layers is vertical mutually.
5, as claim 1 or 2 or 3 or 4 described a kind of sulfur melting kettles, it is characterized by: the top of kettle is provided with interchanger.
6, a kind of sulfur melting kettle as claimed in claim 5, it is characterized by: the upper and lower floral disc that interchanger comprises and inner wall of kettle is fixed, the edge has liquid distributing hole (7,8) and be fixed in heat transfer tube (9) between the upper and lower floral disc is fixed with the cover (10) that sealing covers the heat transfer tube port and is connected with liquid discharge pipe on the last floral disc (7).
7, a kind of sulfur melting kettle as claimed in claim 6 is characterized by: be provided with the traverse baffle (11) that periphery is connected with inner wall of kettle, the center has fluid hole at the middle part of heat transfer tube (9).
8, as claim 6 or 7 described a kind of sulfur melting kettles, it is characterized by: be provided with in following floral disc (8) below that the upper end is fixed with following floral disc, the inner chamber area contains the folder tube (12) that covers the interchanger port.
9, a kind of sulfur melting kettle as claimed in claim 8 is characterized by: be fixed with the ring flat-plate (13) that has liquid distributing hole on it between folder tube (12) lower end and inner wall of kettle.
10, a kind of sulfur melting kettle as claimed in claim 8 is characterized by: be fixed with three layers of horn-like cylindrical shell inclined tube (14) at folder tube (12) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127540 CN200949047Y (en) | 2006-08-31 | 2006-08-31 | Sulfur melting still |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127540 CN200949047Y (en) | 2006-08-31 | 2006-08-31 | Sulfur melting still |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949047Y true CN200949047Y (en) | 2007-09-19 |
Family
ID=38891589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620127540 Expired - Fee Related CN200949047Y (en) | 2006-08-31 | 2006-08-31 | Sulfur melting still |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949047Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285646A (en) * | 2011-06-17 | 2011-12-21 | 中国海洋石油总公司 | Heat tube type sulfur melting slot and special heat tube thereof |
-
2006
- 2006-08-31 CN CN 200620127540 patent/CN200949047Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285646A (en) * | 2011-06-17 | 2011-12-21 | 中国海洋石油总公司 | Heat tube type sulfur melting slot and special heat tube thereof |
| CN102285646B (en) * | 2011-06-17 | 2013-08-21 | 中国海洋石油总公司 | Heat tube type sulfur melting slot and special heat tube thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20090930 |