CN201880439U - Multi-ring spiral demister for desulfurization by ammonia method - Google Patents
Multi-ring spiral demister for desulfurization by ammonia method Download PDFInfo
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- CN201880439U CN201880439U CN2010205950864U CN201020595086U CN201880439U CN 201880439 U CN201880439 U CN 201880439U CN 2010205950864 U CN2010205950864 U CN 2010205950864U CN 201020595086 U CN201020595086 U CN 201020595086U CN 201880439 U CN201880439 U CN 201880439U
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Abstract
The utility model belongs to the technical field of boiler flue gas purification, and relates to a multi-ring spiral demister for desulfurization by an ammonia method. The multi-ring spiral demister is formed by a plurality of concentric cylinders arranged from inside to outside. The diameters of the cylinders are gradually decreased from bottom to top and the cylinders are arranged in an upward step manner from outside to inside. An annular plate is arranged at the upper end of the inner side of each cylinder, a liquid collecting groove is arranged at the lower end of the inner side of each cylinder, and a liquid draining pipe is arranged at the bottom of the liquid collecting groove so that liquid inside the liquid collecting groove can flow back to the bottom of a desulfurizing tower through the liquid draining pipe. A central blind plate (2) is arranged on the central axis of a cylinder on the innermost side, and a liquid baffling plate is arranged on the upper end face of the central blind plate. Liquid baffling plates are arranged on outer walls of a cylinder adjacent to the cylinder on the innermost side and other cylinders, and blades are arranged between the wall of the cylinder on the innermost side and the central blind plate, and arranged among the the plurality of the cylinders. By the aid of the desulfurizing polycyclic spiral demister, liquid content of flue gas can be greatly decreased after liquid-gas separation, and accordingly desulfurizing efficiency and demisting ratio are increased.
Description
Technical field
The utility model belongs to the boiler flue gas purification technical field, relates to a kind of ammonia process of desulfurization and encircles the spiral demister more, is mainly used in tower diameter and surpasses 5 meters desulfurizing tower.
Background technology
The sulfur in smoke that coal-burning boiler produced is one of most important root of atmosphere pollution, is the important object of waste gas pollution control and treatment.The method of administering sulfur dioxide in flue gas is a lot, and the ammonia process of desulfurization is one of method commonly used.In service at ammonia desulfuration equipment, because flue gas rises with given pace, the mist droplet that produces in the time of wherein must carrying the doctor solution spray secretly, outside the composition of droplet dewaters, also have ammonium sulfite, ammonia, sulfur dioxide, ammonium sulfate etc., if enter flue, chimney with flue gas in a large number, not only can cause serious corrosion to flue and chimney, and the accessory substance ammonium sulfate rate of recovery is reduced, and can in flue or chimney, form runoff or crystallization, cause obstruction when serious, even have the part droplet chimney of also can blowing out to cause secondary pollution.
Miniature boiler fume desulfurizing tower one general configuration eddy flow plate demister.Because of the boiler smoke amount little, the desulfurizing tower tower diameter is little, the removing fog effect and can produce a desired effect of eddy flow plate demister, but it is bigger to work as boiler, when exhaust gas volumn was big, the desulfurizing tower tower diameter was also answered corresponding increase, generally speaking, when the desulfurizing tower tower diameter surpassed 5 meters, the fog effect that removes of traditional eddy flow plate demister was difficult to meet the demands.
Summary of the invention
The purpose of this utility model is to propose a kind of ammonia process of desulfurization to encircle the spiral demister more, and the flue gas liquid content after the gas-liquid separation is declined to a great extent, and improves desulfuration efficiency and takes off the mist rate.
The utility model is finished the technical scheme that its invention task taked:
A kind of ammonia process of desulfurization encircles the spiral demister more, and described demister is arranged on air outlet below, desulfurizing tower top; Described demister is made of the cylindrical shell of a plurality of concentrics, the cylindrical shell of described a plurality of concentrics is connected with the desulfurizing tower inwall by the desulfurizing tower inner support body, the cylindrical shell of a plurality of concentrics is and from bottom to top reduces gauge structure, described a plurality of cylindrical shell is the stepped arrangement of rising from outside to inside, and promptly the upper end of internal layer cylinder, lower end are higher than upper end, the lower end of its adjacent outer layer barrel respectively; The cylindrical shell central axis of described concentric and tower body central lines; Inner top side portion at each cylindrical shell is provided with ring flat-plate, and ring flat-plate is a cone structure; The bottom of each cylindrical shell inboard is provided with the hydrops groove, and the hydrops trench bottom is provided with discharging tube, constitutes the liquid in the hydrops groove is got back to the desulfurizing tower bottom by discharging tube structure; The central axis of inboard cylindrical shell is provided with the center blind plate, and the center blind plate is the cylinder template, and the upper surface of the center blind plate of innermost layer cylindrical shell is provided with the blocking solution plate that stops that condensing rises with air-flow; On the outer wall of the cylindrical shell adjacent and other cylindrical shell, also be provided with the blocking solution plate with the innermost layer cylindrical shell; Be provided with blade between the barrel of innermost layer and the center blind plate, the blade between the barrel of innermost layer and the center blind plate is inner to be cut with inboard ring flat-plate line, is provided with blade between a plurality of cylindrical shells.
The tapering of described ring flat-plate is 5 °-10 °.
The horizontal plane angle of blade and cylindrical shell is 20 °-30 °.
A kind of ammonia process of desulfurization that the utility model proposes encircles the spiral demister more, flue gas respectively encircles blade and makes air-flow be the high-speed rotational shape by being uniformly distributed in, the powerful centrifugal force that produces gets rid of laterally droplet and finishes demist behind the cylindrical shell, gas cyclone rises, each spraying layer of upper and lower sides by demister, the crystallization that flushing forms on demister.Especially it is bigger to work as tower diameter, can adopt this kind demister when the monocycle demister can not be obtained ideal effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is a user mode schematic diagram of the present utility model.
Among the figure: 1, the upper strata shower, 2, the center blind plate, 3-1, the endocyclic tube body, 3-2, middle ring cylinder, 3-3, outer ring cylinder 4-1, interior loop resistance liquid plate, 4-2, middle loop resistance liquid plate, 4-3, outer shroud blocking solution plate, 5-1, interior ring blade, 5-2, middle ring blade, 5-3, the outer shroud blade, 6-1, interior ring hydrops groove, 6-2, middle ring hydrops groove, 6-3, outer shroud hydrops groove, 7-1, interior ring discharging tube, 7-2, middle ring discharging tube, 7-3, the outer shroud discharging tube, 8-1, the inner core ring flat-plate, 8-2, middle tube ring flat-plate, 8-3, the urceolus ring flat-plate, 9, lower floor's shower, 10, the concentrated solution outlet pipe, 11, the concentrate inlet tube, 12, the doctor solution outlet, 13, the doctor solution inlet tube, 14, the circulating water outlet pipe, 15, discharge pipe, 16, chimney, 17, the cement flue, 18, the cement flue, 19, air-introduced machine, 20, blast pipe, 21, collecting-tank, 22, pipeline, 23,, 24, digester, 25,26 liters of gas caps, 27, water leg.
The specific embodiment
With embodiment the utility model is further specified in conjunction with the accompanying drawings:
As shown in Figure 1, in conjunction with Fig. 2, a kind of ammonia process of desulfurization encircles the spiral demister more, the demister that is arranged on desulfurizing tower top air outlet below is made of the cylindrical shell of 3 concentrics, be endocyclic tube body 3-1, middle ring cylinder 3-2, outer ring cylinder 3-3, outer ring cylinder 3-3 is connected with the desulfurizing tower inner support by bolt, endocyclic tube body 3-1, middle ring cylinder 3-2, outer ring cylinder 3-3 is cylindrical shell for from bottom to top reducing gauge structure, endocyclic tube body 3-1, middle ring cylinder 3-2, outer ring cylinder 3-3 is the stepped arrangement of rising, the i.e. upper end of internal layer cylinder from outside to inside, the lower end is higher than the upper end of its adjacent outer layer barrel respectively, the lower end; The central axis of endocyclic tube body 3-1, middle ring cylinder 3-2, outer ring cylinder 3-3 and tower body central lines; At endocyclic tube body 3-1, middle ring cylinder 3-2, the outer ring cylinder 3-3 inner top side difference inner core ring flat-plate 8-1 of portion, middle tube ring flat-plate 8-2, urceolus ring flat-plate 8-3, inner core ring flat-plate 8-1, middle tube ring flat-plate 8-2, urceolus ring flat-plate 8-3 are cone structure, and tapering is 8 °; Ring hydrops groove 6-1, middle ring hydrops groove 6-2, outer shroud hydrops groove 6-3 in the bottom of inner core ring flat-plate 8-1, middle tube ring flat-plate 8-2, urceolus ring flat-plate 8-3 inboard is provided with respectively, ring discharging tube 7-1, middle ring discharging tube 7-2, outer shroud discharging tube 7-3 in interior ring hydrops groove 6-1, middle ring hydrops groove 6-2, outer shroud hydrops groove 6-3 bottom correspondence are provided with make the liquid in interior ring hydrops groove 6-1, middle ring hydrops groove 6-2, the outer shroud hydrops groove 6-3 get back to the desulfurizing tower bottom by interior ring discharging tube 7-1, middle ring discharging tube 7-2, outer shroud discharging tube 7-3; The central axis of endocyclic tube body 3-1 is provided with center blind plate 2, and center blind plate 2 is the cylinder template, and the upper surface of the center blind plate of endocyclic tube body 3-1 is provided with the interior loop resistance liquid plate 4-1 that stops that condensing rises with air-flow; On the outer wall of the middle ring entire body 3-2 adjacent, outer ring cylinder 3-3, also be provided with loop resistance liquid plate 4-2, outer shroud blocking solution plate 4-3 with endocyclic tube body 3-1; Ring blade 5-1 in being provided with between the inboard barrel of endocyclic tube body 3-1 and the center blind plate 2, interior ring blade 5-1 between the barrel of innermost layer and the center blind plate is inner to be cut with inboard ring flat-plate line, between endocyclic tube body 3-1 and middle ring cylinder 3-2, ring blade 5-2, outer shroud blade 5-3 in being respectively arranged with between middle ring cylinder 3-2 and the outer ring cylinder 3-3.
As shown in Figure 3, on the above and below of demister, be provided with upper strata shower 1, following shower 9 layer by layer, upper strata shower 1, following shower 9 layer by layer are made up of a plurality of shower nozzles, the shower nozzle direction of upper strata shower 1 down, the shower nozzle of shower 9 is directed upwardly layer by layer down, upper strata shower 1, following shower layer by layer spray Cleaning for High Capacity demister about in the of 9, remove the little droplet that is mingled with owing to turbulent flow, continuously or be interrupted the jet cleaning demister, prevent the evaporative crystallization of solution on the demister wall or dissolving is washed in established crystallization, thereby the little pressure that guarantees demister falls.
The whole flow process of the utility model desulfurization and demist is: the flue gas that boiler produces is sent into cement flue 18 through boiler induced-draft fan 19, enter the desulfurizing tower bottom through desulfurizing tower 24 blast pipes again, in tower, rise then, at first with enter the concentrate that sprays in the tower through concentrate inlet tube 11 and contact, both reduced flue-gas temperature, concentrated vitriol ammonium salt solution again, concentrated solution outlet pipe 10 is formed a closed circuit with concentrate inlet tube 11 and concentrated circulating pump; Flue gas passes and enters desulfurization section after desulfurization rises gas cap 25, contacts and carries out flue gas desulfurization with enter the doctor solution that sprays in the tower through doctor solution inlet tube 13, and doctor solution outlet 12 is formed a closed circuit with doctor solution inlet tube 13 and desulfuration recycle pump; Flue gas continue to rise to pass and enters washing section after washing rises gas cap 26, and enters the washings that spray in the tower through circulating water intake pipe 28 and contact and carry out gas cleaning, circulating water outlet pipe 14 and circulating water intake pipe 28 and closed circuit of water circulating pump composition; Flue gas passes demister when continue rising, and removes droplet, after desulfurizing tower 24, discharge pipe 15 enter cement flue 17, enters atmosphere through chimney 16 then; The horizontal position of desulfurizing tower 24 discharge pipes 15 is provided with water leg 27, and catchment lease making pipeline 22 of institute imports collecting-tanks 21.
Embodiment 1, with 3 * 75t/h CFBB is example, 5.5 meters of flue gas flow wet ammonia process desulfurizing tower diameters. 5.3 meters of diameters, whole three rings that divide, every group of length of blade is 2 meters, the inboard ring flat-plate width of cylindrical shell is 0.15 meter, and cylindrical shell outside flinger ring width is 0.08 meter, and the whole tapering of demister is 20 degree.With desulfurizing tower wall utility model demister outermost cylindrical shell for this reason, diameter is 5.5 meters; Middle ring cylinder base diameter is 3.8 meters, and upper end diameter is 3.5 meters; Middle ring cylinder is 0.22 meter with the outer ring cylinder bottom discrepancy in elevation, and the ring flat-plate height is 1.1 meters.The inner ring plate base diameter is 2.2 meters, and upper end diameter is 1.95 meters; The endocyclic tube body and the middle ring cylinder bottom discrepancy in elevation are 0.22 meter, and endocyclic tube height degree is 1.1 meters.Central authorities' blind plate diameter is 0.6 meter.The blind plate height is 0.25 meter.Spray has respectively been arranged 22 shower nozzles up and down, is intermittent shower, and be 20 minutes/2 hours blanking time.
This device desulfuration efficiency is 96%, and containing the mist amount in the flue gas before the demist is 450mg/Nm
3Containing the mist amount after the demist in the flue gas is 22mg/Nm
3, the demist rate reaches 95.1%, demister drag overall 125Pa.
Claims (3)
1. an ammonia process of desulfurization encircles the spiral demister more, it is characterized in that: the demister that is arranged on demister desulfurizing tower top air outlet below is made of the cylindrical shell of a plurality of concentrics, the cylindrical shell of described a plurality of concentrics is connected with the desulfurizing tower inwall by the desulfurizing tower inner support body, a plurality of cylindrical shells that are are for from bottom to top reducing gauge structure, described a plurality of cylindrical shell is the stepped arrangement of rising from outside to inside, and promptly the upper end of internal layer cylinder, lower end are higher than upper end, the lower end of its adjacent outer layer barrel respectively; The central axis and the tower body central lines of concentric cylindrical shell; Inner top side portion at each cylindrical shell is provided with ring flat-plate, and ring flat-plate is a cone structure; The bottom of each cylindrical shell inboard is provided with the hydrops groove, and the hydrops trench bottom is provided with discharging tube, makes the liquid in the hydrops groove get back to the desulfurizing tower bottom by discharging tube; The central axis of inboard cylindrical shell is provided with center blind plate (2), and center blind plate (2) is the cylinder template, and the upper surface of the center blind plate of innermost layer cylindrical shell is provided with the blocking solution plate that stops that condensing rises with air-flow; On the outer wall of the cylindrical shell adjacent and other cylindrical shell, also be provided with the blocking solution plate with the innermost layer cylindrical shell; Be provided with blade between the barrel of innermost layer and the center blind plate, the blade between the barrel of innermost layer and the center blind plate is inner to be cut with inboard ring flat-plate line, is provided with blade between a plurality of cylindrical shells.
2. the ammonia process of desulfurization according to claim 1 encircles the spiral demister more, it is characterized in that: the tapering of described ring flat-plate is 5 °-10 °.
3. the ammonia process of desulfurization according to claim 1 encircles the spiral demister more, it is characterized in that: the horizontal plane angle of blade and cylindrical shell is 20 °-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205950864U CN201880439U (en) | 2010-11-08 | 2010-11-08 | Multi-ring spiral demister for desulfurization by ammonia method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205950864U CN201880439U (en) | 2010-11-08 | 2010-11-08 | Multi-ring spiral demister for desulfurization by ammonia method |
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| Publication Number | Publication Date |
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| CN201880439U true CN201880439U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205950864U Expired - Fee Related CN201880439U (en) | 2010-11-08 | 2010-11-08 | Multi-ring spiral demister for desulfurization by ammonia method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423579A (en) * | 2011-08-31 | 2012-04-25 | 张宏生 | Vertical mist eliminator |
| CN104587756A (en) * | 2015-02-03 | 2015-05-06 | 青岛达能环保设备股份有限公司 | Efficient multi-pipe spiral mist removing and dust removing system |
| CN105435610A (en) * | 2015-12-03 | 2016-03-30 | 上海交通大学 | Integrated multiple-effect device meeting requirements for deep desulfurization and denitrification and dust removal of industrial flue gas |
| CN106422740A (en) * | 2016-11-11 | 2017-02-22 | 中国大唐集团科学技术研究院有限公司 | Centrifugal type deep flue gas purification device provided with shunting ring and desulfurization tower |
| CN107617325A (en) * | 2016-07-15 | 2018-01-23 | 于维礼 | Shunting whirlpool clarifier and the shunting whirlpool purifying column equipped with the clarifier |
| CN107837610A (en) * | 2017-12-22 | 2018-03-27 | 佛山市普蓝环境工程有限公司 | A kind of high efficient gas and liquid separator |
| CN112516688A (en) * | 2019-09-19 | 2021-03-19 | 萍乡市华星环保工程技术有限公司 | Mist catcher for coal gas desulfurization |
-
2010
- 2010-11-08 CN CN2010205950864U patent/CN201880439U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423579A (en) * | 2011-08-31 | 2012-04-25 | 张宏生 | Vertical mist eliminator |
| CN102423579B (en) * | 2011-08-31 | 2014-01-29 | 张宏生 | Vertical mist eliminator |
| CN104587756A (en) * | 2015-02-03 | 2015-05-06 | 青岛达能环保设备股份有限公司 | Efficient multi-pipe spiral mist removing and dust removing system |
| CN105435610A (en) * | 2015-12-03 | 2016-03-30 | 上海交通大学 | Integrated multiple-effect device meeting requirements for deep desulfurization and denitrification and dust removal of industrial flue gas |
| CN107617325A (en) * | 2016-07-15 | 2018-01-23 | 于维礼 | Shunting whirlpool clarifier and the shunting whirlpool purifying column equipped with the clarifier |
| CN106422740A (en) * | 2016-11-11 | 2017-02-22 | 中国大唐集团科学技术研究院有限公司 | Centrifugal type deep flue gas purification device provided with shunting ring and desulfurization tower |
| CN107837610A (en) * | 2017-12-22 | 2018-03-27 | 佛山市普蓝环境工程有限公司 | A kind of high efficient gas and liquid separator |
| CN107837610B (en) * | 2017-12-22 | 2023-08-08 | 佛山市普蓝环境工程有限公司 | High-efficient gas-liquid separator |
| CN112516688A (en) * | 2019-09-19 | 2021-03-19 | 萍乡市华星环保工程技术有限公司 | Mist catcher for coal gas desulfurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20181108 |