CN103566664A - Flue gas desulfurizing and demisting device for sintering machine - Google Patents
Flue gas desulfurizing and demisting device for sintering machine Download PDFInfo
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- CN103566664A CN103566664A CN201310583684.8A CN201310583684A CN103566664A CN 103566664 A CN103566664 A CN 103566664A CN 201310583684 A CN201310583684 A CN 201310583684A CN 103566664 A CN103566664 A CN 103566664A
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- flue gas
- chimney
- sintering machine
- demisting
- demisting unit
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Abstract
The invention provides a flue gas desulfurizing and demisting device for a sintering machine, and belongs to the technical field of gas liquid separation. The flue gas desulfurizing and demisting device for the sintering machine comprises a cylindrical chimney with a cylinder bottom and multiple layers of demisting units arranged in the axial direction of the chimney uniformly, wherein each layer of demisting unit is arranged in the circumferential direction of the chimney uniformly; multiple rows of openings are formed in the wall of the chimney in the axial direction; the multiple layers of demisting units are correspondingly communicated with the multiple rows of openings in the wall of the chimney. The desulfurizing and demisting device provided by the invention improves the dust-removing effect of a desulfurizing tower, reduces the concentration of solid-containing liquid of flue gas discharged by the wet desulfurizing tower and further improves the desulfurizing efficiency of the desulfurizing tower.
Description
Technical field
The invention provides a kind of flue gas of sintering machine demister, belong to gas-liquid separation technical field.
Background technology
Flue gas desulfurization be current coal-burning power plant, petroleum chemical enterprise, iron and steel enterprise the environmental practice that must implement, conventionally adopt wet type desulfurizing tower to carry out desulfurization.In desulfurizing tower, generally adopt chevron mist eliminator at present, exist in the situation that shortcoming ， plant area relative air humidity that the clean humidity of flue gas of outlet is high is high, the drop that clean flue gas carries is along with the condensation of water vapour is grown up gradually, finally drop to ground, form " gypsum rain ".Especially in the winter time and south, " gypsum rain " phenomenon is commonplace.
Contained drop in wet flue gas after desulfurization, its composition and tower prime cement liquid are basic identical, and the inside includes certain density dust and SO
2; The drop total amount containing in clean flue gas is higher, and the efficiency of dust collection of desulfurizing tower is just lower, and desulfuration efficiency also declines to some extent.Country is more and more stricter to Air Pollutant Emission concentration and total emission volumn requirement at present, and desulfurization degree and the dust removal efficiency of desulfurizer must improve in blowdown enterprise; Except improving the activity of desulfurizing tower liquid-gas ratio and desulfurizing agent, the separative efficiency that improves demister is also an important method.
The sulfur method that present most of desulfurizer adopts is: lime stone-desulfurization of gypsum method, this method can be removed the sulfur dioxide in flue gas largely, but has also brought many problems simultaneously.The a large amount of fresh water (FW)s of the method consumption, wherein most fresh water (FW) enters atmosphere with steam form, also has sub-fraction to enter atmosphere with drop form; Near chimney breast, along with temperature reduces, steam condenses into liquid state, and the process of condensing has been accelerated in the existence of drop, and drop is increased rapidly, forms rainfall near chimney.Thereby can cause certain secondary pollution to desulfurizing tower environment around.Therefore, reduce the concentration of drop in clean flue gas and can avoid chimney band rain, reduced the impact on desulfurizing tower surrounding environment.At present, China also has the medium small boiler of a larger part in operation, and larger environmental investment is unrealistic.Therefore, some high efficiency, equipment need to develop, develop cheaply.How to remove the drop in flue gas, become the most important thing of research.
Existing demister has chevron mist eliminator, exists and removes the problem of drop efficiency deficiency, and flue gas flow rate is had to larger restriction, also has the phenomenon of subregion dust stratification while moving for a long time, has reduced the operating efficiency of demister.
Summary of the invention
For overcoming the technical problem existing in prior art, goal of the invention of the present invention is to provide a kind of flue gas of sintering machine demister, and it is high that it removes drop efficiency.
For realizing described goal of the invention, the invention provides a kind of flue gas of sintering machine demister, it comprises a cylindrical chimney at the bottom of being provided with tin and along the multilayer demisting unit axially evenly arranging of chimney, the demisting unit of every layer circumferentially evenly arranges along chimney, multirow opening is set on the barrel of chimney vertically, multilayer demisting unit respectively with the corresponding connection of multirow opening on chimney wall.
Preferably, described demisting unit comprises cylindrical shell, and the lower end of described cylindrical shell is provided with the end, and upper end is clean exhanst gas outlet, has been disposed radially wet flue gas import and flushing water interface on the sidewall of cylindrical shell, is provided with vertically discharge outlet.
Preferably, cylindrical shell by diameter is
be highly
the first cylindrical tube, the diameter of upper bottom portion opening is
, lower openings diameter be
be highly
truncated cone cylinder and diameter be
be highly
the second cylindrical tube form, discharge outlet is arranged on the excessive place of the first cylindrical tube and truncated cone cylinder.
Preferably, the cross section of described wet flue gas import vertical axial is trapezoidal, wherein, the circle that the extended line of a trapezoidal waist forms with the first cylindrical tube radial section is tangent and vertical with base, another waist and the first cylindrical tube radial section and the circle that forms intersects and be at a certain angle with base shape.
Compared with prior art, flue gas of sintering machine demister provided by the invention improves the dust removing effects of desulfurizing tower, reduce the concentration of dripping containing solid-liquid in wet type desulfurizing tower discharged gas fume, and further improve the desulfuration efficiency of desulfurizing tower, overcome the weak point of existing chevron mist eliminator.The advantages such as this device has simple in structure, easy to process, easy for installation.
Accompanying drawing explanation
Figure 1A is this bright flue gas of sintering machine demister providing schematic cross-section vertically;
Figure 1B is that this bright flue gas of sintering machine demister providing is along the schematic cross-section of the direction of vertical axial;
Fig. 2 A is radially perspective view of this bright demisting unit providing;
Fig. 2 B is the perspective view that this bright demisting unit providing is seen from A direction;
Fig. 2 C is the sectional view that this bright demisting unit providing is cut along B-B direction.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail, identical Reference numeral represents identical parts.
Figure 1A is this bright flue gas of sintering machine demister providing schematic cross-section vertically; Figure 1B is that this bright flue gas of sintering machine demister providing is along the schematic cross-section of the direction of vertical axial.As shown in Figure 1A and 1B, flue gas of sintering machine demister provided by the invention comprises a cylindrical chimney 2 at the bottom of being provided with tin and along the multilayer demisting unit 3 axially evenly arranging of chimney 2, the demisting unit of every layer circumferentially evenly arranges along chimney, multirow opening is set on the barrel of chimney vertically, and the opening of every row radially arranges; Multilayer demisting unit respectively with the corresponding connection of multirow opening on chimney wall.Demister is arranged on the top of desulfurizing tower 1.
Fig. 2 A is radially perspective view of this bright demisting unit providing; Fig. 2 B is the perspective view that this bright demisting unit providing is seen from A direction; Fig. 2 C is the sectional view that this bright demisting unit providing is cut along B-B direction.As shown in Fig. 2 A, 2B and 2C, described demisting unit 3 comprises cylindrical shell 9, and the lower end of described cylindrical shell is provided with the end, and upper end is clean exhanst gas outlet 4, has been disposed radially wet flue gas import 7 and flushing water interface 6 on the sidewall of cylindrical shell, is provided with vertically discharge outlet 8; Clean exhanst gas outlet 4 is provided with mounting flange 5, and described mounting flange 5 is bolted in the opening part of the sidewall of chimney.
Cylindrical shell 9 by diameter is
be highly
the first cylindrical tube, the diameter of upper bottom portion opening is
, lower openings diameter be
be highly
truncated cone cylinder and diameter be
be highly
the second cylindrical tube form, discharge outlet 8 is arranged on the excessive place of the first cylindrical tube and truncated cone cylinder.
The cross section of described wet flue gas import 7 vertical axials is trapezoidal, wherein, the circle that the extended line of a trapezoidal waist forms with the first cylindrical tube radial section is tangent and vertical with base, another waist and the first cylindrical tube radial section and the circle that forms intersects and be at a certain angle with base shape.
The course of work of demister provided by the invention is: the wet flue gas through desulfurization is entered the cylindrical shell of demisting unit by the wet flue gas import 1 of each demisting unit, flushing water enters from rinse mouth 6 simultaneously, due to face of gas approach 1 and the wall of cylindrical shell tangent, the wall of another face and cylindrical shell intersects, flue gas when flowing, inner barrel is moved in the shape of a spiral, drive flushing water also along with the tube wall shape motion of spinning, thereby reach the solid impurity rinsing on tube wall, alleviate the fouling situation of tube wall, equipment can be run well for a long time.Wet flue gas produces centrifugal force in cylindrical shell motion process, under the effect of centrifugal force, drop in flue gas can be attached to the inner wall surface of this cylindrical shell, under the effect of drop self gravitation, along cylinder inboard wall surface, flow down, by discharge outlet 8, discharge, thereby the flue gas having purified is discharged in chimney by clean exhanst gas outlet 4, the then outlet by chimney top is discharged to the external world again.
Demisting unit provided by the invention makes flue gas advance at this demisting unit inner-spiral type, and moisture in flue gas is attached on the inwall of cylindrical shell of this demisting unit under the effect of centrifugal force, by gravity flow, reclaims.Flue gas advances and further reduces the solid particulate matter in flue gas at demisting unit inner-spiral type, has reduced the droplet content in flue gas, has also reduced the operating cost of desulphurization system simultaneously.Demisting unit is circular array in flue, has improved as much as possible the de-water ratio of flue gas.Flue gas after treatment can directly be discharged in atmosphere.The water of getting rid of by discharge outlet can recycling, has further reduced the operating cost of equipment.
Although below by reference to the accompanying drawings design of the present invention and example have been done to elaborate; but those skilled in the art will be appreciated that; do not departing under the prerequisite of the present invention's design, any improvement of making based on the present invention and conversion still belong to the content in protection domain of the present invention.
Claims (4)
1. a flue gas of sintering machine demister, it is characterized in that, it comprises a cylindrical chimney at the bottom of being provided with tin and along the multilayer demisting unit axially evenly arranging of chimney, the demisting unit of every layer circumferentially evenly arranges along chimney, multirow opening is set on the barrel of chimney vertically, multilayer demisting unit respectively with the corresponding connection of multirow opening on chimney wall.
2. flue gas of sintering machine demister according to claim 1, it is characterized in that, described demisting unit comprises cylindrical shell, the lower end of described cylindrical shell is provided with the end, upper end is clean exhanst gas outlet, on the sidewall of cylindrical shell, be disposed radially wet flue gas import and flushing water interface, be provided with vertically discharge outlet.
3. flue gas of sintering machine demister according to claim 2, is characterized in that, cylindrical shell by diameter is
be highly
the first cylindrical tube, the diameter of upper bottom portion opening is
, lower openings diameter be
be highly
truncated cone cylinder and diameter be
be highly
the second cylindrical tube form, discharge outlet is arranged on the excessive place of the first cylindrical tube and truncated cone cylinder.
4. flue gas of sintering machine demister according to claim 3, it is characterized in that, the cross section of described wet flue gas import vertical axial is trapezoidal, wherein, the circle that the extended line of a trapezoidal waist forms with the first cylindrical tube radial section is tangent and vertical with base, another waist and the first cylindrical tube radial section and the circle that forms intersects and be at a certain angle with base shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310583684.8A CN103566664B (en) | 2013-11-20 | 2013-11-20 | Flue gas of sintering machine demister |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310583684.8A CN103566664B (en) | 2013-11-20 | 2013-11-20 | Flue gas of sintering machine demister |
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| Publication Number | Publication Date |
|---|---|
| CN103566664A true CN103566664A (en) | 2014-02-12 |
| CN103566664B CN103566664B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169818A (en) * | 2015-07-27 | 2015-12-23 | 航天环境工程有限公司 | Double-vane air-swirl parallel-combination demister and application thereof |
| CN108355465A (en) * | 2018-03-01 | 2018-08-03 | 佛山赛因迪环保科技有限公司 | Desulfurization fume defogging method and device |
| CN109173443A (en) * | 2018-09-13 | 2019-01-11 | 中冶赛迪技术研究中心有限公司 | A kind of flue gas takes off white device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56920A (en) * | 1979-06-13 | 1981-01-08 | Shimizu Constr Co Ltd | Stack-rain preventing device |
| JPS5813919A (en) * | 1981-07-20 | 1983-01-26 | Ohbayashigumi Ltd | Preventing device for stack rain |
| JPS5862422A (en) * | 1981-10-12 | 1983-04-13 | Yoshikane Ikutake | Chimney |
| CN202555093U (en) * | 2012-05-28 | 2012-11-28 | 山东国舜建设集团有限公司 | Special wet flue gas dehydrator for desulfurization engineering |
| CN203540226U (en) * | 2013-11-20 | 2014-04-16 | 航天环境工程有限公司 | Flue gas desulfurization and defogging device of sintering machine |
-
2013
- 2013-11-20 CN CN201310583684.8A patent/CN103566664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56920A (en) * | 1979-06-13 | 1981-01-08 | Shimizu Constr Co Ltd | Stack-rain preventing device |
| JPS5813919A (en) * | 1981-07-20 | 1983-01-26 | Ohbayashigumi Ltd | Preventing device for stack rain |
| JPS5862422A (en) * | 1981-10-12 | 1983-04-13 | Yoshikane Ikutake | Chimney |
| CN202555093U (en) * | 2012-05-28 | 2012-11-28 | 山东国舜建设集团有限公司 | Special wet flue gas dehydrator for desulfurization engineering |
| CN203540226U (en) * | 2013-11-20 | 2014-04-16 | 航天环境工程有限公司 | Flue gas desulfurization and defogging device of sintering machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169818A (en) * | 2015-07-27 | 2015-12-23 | 航天环境工程有限公司 | Double-vane air-swirl parallel-combination demister and application thereof |
| CN105169818B (en) * | 2015-07-27 | 2017-01-11 | 航天环境工程有限公司 | Double-vane air-swirl parallel-combination demister and application thereof |
| CN108355465A (en) * | 2018-03-01 | 2018-08-03 | 佛山赛因迪环保科技有限公司 | Desulfurization fume defogging method and device |
| CN109173443A (en) * | 2018-09-13 | 2019-01-11 | 中冶赛迪技术研究中心有限公司 | A kind of flue gas takes off white device |
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| Publication number | Publication date |
|---|---|
| CN103566664B (en) | 2016-02-24 |
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Inventor after: Cheng Heng Inventor after: Guo Dongming Inventor after: Zhao Yonggang Inventor after: Fan Chunxue Inventor before: Fan Chunxue Inventor before: Guo Dongming Inventor before: Zhao Yonggang |
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