CN102636036A - Environment-friendly type C-KSV cyclone drum - Google Patents
Environment-friendly type C-KSV cyclone drum Download PDFInfo
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- CN102636036A CN102636036A CN2012100835098A CN201210083509A CN102636036A CN 102636036 A CN102636036 A CN 102636036A CN 2012100835098 A CN2012100835098 A CN 2012100835098A CN 201210083509 A CN201210083509 A CN 201210083509A CN 102636036 A CN102636036 A CN 102636036A
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Abstract
The invention discloses an environment-friendly type C-KSV cyclone drum. The cyclone drum is provided with a cone diameter-expanding structure. The environment-friendly type C-KSV cyclone drum is structurally characterized in that a cone is divided into an upper cone and a lower cone which have upward large ends and downward small ends and are coaxially connected and communicated; the diameter of the large end of the lower cone is larger than that of the small end of the upper cone; and a horizontal sealing end surface is arranged between an upper port of the lower cone and the upper cone. Due to adoption of the technical scheme, the unique high-efficiency and environment-friendly type cyclone drum adopted on a kiln-tail predecomposition system of a cement factory has the advantages that since the internal process is reasonable, the internal circulation of materials of the kiln-tail predecomposition system is effectively reduced, the gas-solid separating efficiency is effectively increased, the dust concentration of an outlet of a preheater is greatly reduced, and the dust content of gas exhausted by the preheater is greatly reduced compared with that of the traditional cyclone drum; and simultaneously the resistance loss in the cyclone drum is reduced, the energy consumption is reduced and the emission is reduced.
Description
Technical field
The invention belongs to the technical field of new type nonaqueous cement grog production equipment, relate to the improvement technology of clinker calcination equipment, more particularly, the present invention relates to environment-friendly type C-KSV whirlwind tube.
Background technology
The grog of cement dry method klining one-tenth technology burns till part and mainly is made up of the following aspects: 5 grades of novel cyclone preheaters; The outer using predecomposition technology (dore furnace) of kiln; Clinker burning technology (rotary kiln); Grog cold air technology (grate cooler).
The material of nsp kiln gets into dore furnace by the feeding of preheater top after the cyclone preheater preheating, go into rotary kiln after decomposing therein and calcine, and gets into the grate cooler cooling afterwards.
Current, the technical problem that cement industry development is badly in need of solving is energy-conservation, consumption reduction, environmental protection, improve cement quality and raise labour productivity, and walks the road of sustainable development.
Cement production process is a high energy consumption process, and fuel cost accounts for 40% of whole plant produced cost.And the key that reduces cement firing system hear rate is to reduce the interior circulation of material and the material outer circulation of cement firing system, improves system's heat exchange efficiency.Circulation and material outer circulation have not only increased system loading, and have reduced the system fuel utilization rate in the material of cement firing system.
In the tradition Design of Cyclone process, mainly be to improve gas, solid separative efficiency, but this method certainly will cause the rising of SR when improving wind speed, increase system energy consumption through increasing wind speed.Therefore, the optimization of whirlwind barrel structure form, most important to the raising of its separative efficiency.
Summary of the invention
The present invention is to provide environment-friendly type C-KSV whirlwind tube, its objective is under the prerequisite that does not increase even reduce SR, improve gas solid separation efficient.
To achieve these goals, the technical scheme taked of the present invention is:
Environment-friendly type C-KSV whirlwind tube provided by the present invention; Described whirlwind tube comprises volute, cylinder, cone from top to bottom; Establish inner core in the described volute, air inlet is established in the outside of described volute, and described whirlwind tube is provided with cone hole enlargement structure; Described cone hole enlargement structure is: described cone is divided into upper cone and lower cone, described upper cone and lower cone be big end up, small end down; Described upper cone and lower cone be coaxial to be connected and to communicate, and the outside diameter of described lower cone is greater than the end diameter of upper cone; Establish the seal face of level between the port of described lower cone and the described upper cone.
The bottom of described air inlet is provided with the inclined plane, and the incline direction on described inclined plane is from outside to inside, from high to low, make described air inlet two sides be shaped as pentagon.
The angle of described inclined plane and horizontal plane is 50 °.
Whirlwind tube of the present invention is divided into two types of A, B again, wherein:
The design feature of A type whirlwind tube is:
The port of the lower end of described upper cone is lower than the port of the upper end of described lower cone.
The bottom of described inner core is lower than the extreme lower position of volute.
The design feature of Type B whirlwind tube is:
The port of the port of the lower end of described upper cone and the upper end of described lower cone at grade.
The bottom of described inner core is lower than the extreme lower position of volute.
The present invention adopts technique scheme; On cement factory kiln tail precalcining system, adopt the efficient and environment-friendly type whirlwind tube of unique " cone hole enlargement structure "; Because internal process is reasonable, effectively reduce the interior circulation of material of kiln tail precalcining system, improved gas solid separation efficient effectively; Greatly reduce preheater outlet dust content, the gas dustiness that pre-heating system is discharged reduces than traditional whirlwind tube greatly; Reduced the drag losses in the whirlwind tube simultaneously, reduced energy consumption, reduced discharging.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification and the figure briefly explains:
Fig. 1 is the structural representation of the A type whirlwind tube among the present invention;
Fig. 2 is the structural representation of the Type B whirlwind tube among the present invention;
Fig. 3 is a whirlwind tube operation principle sketch map of the present invention;
Fig. 4 is whirlwind tube dust-collecting efficiency of the present invention and wind speed graph of relation;
Fig. 5 is a whirlwind tube resistance coefficient curve map of the present invention;
Fig. 6 is the physical dimension sketch map of the whirlwind of A type shown in Fig. 1 tube;
Fig. 7 is the physical dimension sketch map of the tube of Type B whirlwind shown in Fig. 2.
Be labeled as among the figure:
1, inner core, 2, volute, 3, cylinder, 4, cone, 5, upper cone, 6, lower cone, 7, cone hole enlargement structure, 8, air inlet.
The specific embodiment
Contrast accompanying drawing below, through the description to embodiment, specific embodiments of the invention is done further detailed explanation, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
Like Fig. 1, the expressed structure of the present invention of Fig. 2, be environment-friendly type C-KSV whirlwind tube, described whirlwind tube comprises volute 2, cylinder 3, cone 4 from top to bottom, establishes inner core 1 in the described volute 2, air inlet 8 is established in the outside of described volute 2.
The present invention is based on the present state of the art, utilize cold model test, analysed in depth gas motion characteristics in the whirlwind tube,, improve gas solid separation efficient, do not increase even reduce simultaneously SR through optimizing whirlwind barrel structure form.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, be implemented under the prerequisite that does not increase even reduce SR, improve the goal of the invention of gas solid separation efficient, the technical scheme that the present invention takes is:
Like Fig. 1, shown in Figure 2; Environment-friendly type C-KSV whirlwind tube provided by the present invention is provided with cone hole enlargement structure 7; Described cone hole enlargement structure 7 is: described cone 4 is divided into upper cone 5 and lower cone 6, described upper cone 5 and lower cone 6 be big end up, small end down; Described upper cone 5 and lower cone 6 be coaxial to be connected and to communicate, and the outside diameter of described lower cone 6 is greater than the end diameter of upper cone 5; Establish the seal face of level between the port of described lower cone 6 and the described upper cone 5.
This whirlwind tube has designed unique " cone hole enlargement structure " at the cone middle part, and the material under will collecting when effectively having avoided gas " to turn back " is kicked up once more, has improved gas solid separation efficient.Improve 2%～5% than traditional whirlwind tube separative efficiency, pressure loss coefficient reduces by 25%～30% than traditional whirlwind tube.
The bottom of described air inlet 8 is provided with the inclined plane, and the incline direction on described inclined plane is from outside to inside, from high to low, make described air inlet 8 two sides be shaped as pentagon.
The angle of described inclined plane and horizontal plane is 50 °.Whirlwind tube air inlet 8 has effectively reduced the dust accumulation for the pentagonal configuration with 50 ° of inclination angles, makes system's operation more stable.
As shown in Figure 3, dusty gas is the volute 2 that pentagonal air inlet 8 gets into the whirlwind tubes through the side, under the squeezing action of gravity, the back dusty gas that gets into, under the guiding of volute 2, forms the downward screw of high-speed rotational.In this process, material is under the effect of centrifugal force and whirlwind tube limit wall friction power, and the wall spiral moves downward along the limit.When dusty gas arrived whirlwind tube cone 4, gas " was turned back " under the reflex of cone 4 and is moved upward, and discharged from blast pipe, and then wall continues to move downward dust along the limit.
Different according to cone hole enlargement structure and inner core height, whirlwind tube of the present invention is divided into two types of A, B again.The dust-collecting efficiency of these two types of whirlwind tubes and drag losses are different and different because of its inner core height and cone hole enlargement version.
Like Fig. 1 and shown in Figure 6, the design feature of said A type whirlwind tube is:
The port of the lower end of described upper cone 5 is lower than the port of the upper end of described lower cone 6.
The bottom of described inner core 1 is lower than the extreme lower position of volute 2.
Like Fig. 2 and shown in Figure 7, the design feature of said Type B whirlwind tube is:
The port of the upper end of the port of the lower end of described upper cone 5 and described lower cone 6 at grade.
The bottom of described inner core 1 is lower than the extreme lower position of volute 2.
Described A, two types of whirlwind tubes of B are applied in the top and the bottom of precalcining system respectively, i.e. C1 and C5 level whirlwind tube (being one-level whirlwind tube and five-stage whirlwind tube).
Above-mentioned two kinds of whirlwind tubes are used for the preheating predecomposition of cement slurry, and the cement slurry after the homogenizing fully disperses back entering preheater through the material-strewing device that C2, C1 whirlwind tube connect on the airduct, in preheater with hot gas abundant heat exchange under suspended state.To the Category Four cyclone tube, go into dore furnace, carbonate decomposes in a large number under the hot environment in dore furnace.Material after the decomposition is gone into five-stage whirlwind tube (C5) separated and collected, then through kiln tail smoke-box feeding rotary kiln.
Comparison diagram 6 and Fig. 7, the height of A type whirlwind tube is much larger than Type B; The diameter of Type B whirlwind tube is much larger than the A type.Equally, the inner core height is different; The lower cone connected mode is different in cone hole enlargement place.
Fig. 4 is whirlwind tube dust-collecting efficiency and wind speed graph of relation.As can be seen from the figure, on the whole, the cross section wind speed is between 5m/s to 6.7m/s, and the little separative efficiency on the contrary of wind speed is high, and technical scheme of the present invention is adopted in this explanation, can suitably reduce wind speed, the power consumption of minimizing system; In addition, solid-gas ratio raises, and separative efficiency descends to some extent, but influence is very little.
Fig. 5 is a whirlwind tube resistance coefficient curve map.As can be seen from the figure, when the import wind speed rose, whirlwind tube resistance coefficient did not obviously rise.
Table one: whirlwind tube dust-collecting efficiency thermal technology nominal data of the present invention
| C1 outlet dustiness (g/Nm 3) | C1 dust-collecting efficiency (%) | |
| Project one | 62.11 | 93.72 |
| Project two | 64.88 | 94.13 |
What C1 promptly represented in the table is the one-level whirlwind tube at the top of precalcining system.
Technical scheme of the present invention is applied to 5000t/d grog line project, through runtime verification, can find out that through thermal technology's nominal data the dust-collecting efficiency of this whirlwind tube is more than 93%.
More than combine accompanying drawing; The present invention has been carried out exemplary description; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out, or design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention without improvement.
Claims (7)
1. environment-friendly type C-KSV whirlwind tube; Described whirlwind tube comprises volute (2), cylinder (3), cone (4) from top to bottom; Establish inner core (1) in the described volute (2), air inlet (8) is established in the outside of described volute (2), it is characterized in that: described whirlwind tube is provided with cone hole enlargement structure (7); Described cone hole enlargement structure (7) is: described cone (4) is divided into upper cone (5) and lower cone (6), described upper cone (5) and lower cone (6) be big end up, small end down; Described upper cone (5) and lower cone (6) be coaxial to be connected and to communicate, and the outside diameter of described lower cone (6) is greater than the end diameter of upper cone (5); Establish the seal face of level between the port of described lower cone (6) and the described upper cone (5).
2. according to the described environment-friendly type C-KSV whirlwind of claim 1 tube; It is characterized in that: the bottom of described air inlet (8) is provided with the inclined plane; The incline direction on described inclined plane is from outside to inside, from high to low, make described air inlet (8) two sides be shaped as pentagon.
3. according to the described environment-friendly type C-KSV whirlwind of claim 2 tube, it is characterized in that: the angle of described inclined plane and horizontal plane is 50 °.
4. according to claim 1 or 2 or 3 described environment-friendly type C-KSV whirlwind tubes, it is characterized in that: the port of the lower end of described upper cone (5) is lower than the port of the upper end of described lower cone (6).
5. according to the described environment-friendly type C-KSV whirlwind of claim 4 tube, it is characterized in that: the bottom of described inner core (1) is lower than the extreme lower position of volute (2).
6. according to claim 1 or 2 or 3 described environment-friendly type C-KSV whirlwind tubes, it is characterized in that: the port of the upper end of the port of the lower end of described upper cone (5) and described lower cone (6) at grade.
7. according to the described environment-friendly type C-KSV whirlwind of claim 6 tube, it is characterized in that: the bottom of described inner core (1) is lower than the extreme lower position of volute (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100835098A CN102636036A (en) | 2012-03-27 | 2012-03-27 | Environment-friendly type C-KSV cyclone drum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100835098A CN102636036A (en) | 2012-03-27 | 2012-03-27 | Environment-friendly type C-KSV cyclone drum |
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| CN102636036A true CN102636036A (en) | 2012-08-15 |
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| CN2012100835098A Pending CN102636036A (en) | 2012-03-27 | 2012-03-27 | Environment-friendly type C-KSV cyclone drum |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122052A1 (en) * | 1980-06-11 | 1982-02-18 | Kobe Steel, Ltd., Kobe, Hyogo | Cyclone separator |
| JPS60135599U (en) * | 1984-02-21 | 1985-09-09 | 三菱重工業株式会社 | Cyclone |
| CN2175648Y (en) * | 1993-11-26 | 1994-08-31 | 石油大学(华东) | Guide blade whirlwind tube with double cone dust removing structure |
| CN201275508Y (en) * | 2008-10-17 | 2009-07-22 | 天津水泥工业设计研究院有限公司 | High-efficient low-resistance type cyclone cartridge |
| CN201425426Y (en) * | 2009-05-26 | 2010-03-17 | 中国建材装备有限公司 | Preheater cyclone with access slope |
| CN201497376U (en) * | 2009-06-25 | 2010-06-02 | 南京西普水泥工程集团有限公司 | Expansion type cyclone |
| CN202149703U (en) * | 2011-07-14 | 2012-02-22 | 双鸭山新时代水泥有限责任公司 | Cyclone for rotary kiln tail preheating system |
| CN202532901U (en) * | 2012-03-27 | 2012-11-14 | 安徽海螺川崎装备制造有限公司 | Environment-friendly C-KSV cyclone cylinder |
-
2012
- 2012-03-27 CN CN2012100835098A patent/CN102636036A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122052A1 (en) * | 1980-06-11 | 1982-02-18 | Kobe Steel, Ltd., Kobe, Hyogo | Cyclone separator |
| JPS60135599U (en) * | 1984-02-21 | 1985-09-09 | 三菱重工業株式会社 | Cyclone |
| CN2175648Y (en) * | 1993-11-26 | 1994-08-31 | 石油大学(华东) | Guide blade whirlwind tube with double cone dust removing structure |
| CN201275508Y (en) * | 2008-10-17 | 2009-07-22 | 天津水泥工业设计研究院有限公司 | High-efficient low-resistance type cyclone cartridge |
| CN201425426Y (en) * | 2009-05-26 | 2010-03-17 | 中国建材装备有限公司 | Preheater cyclone with access slope |
| CN201497376U (en) * | 2009-06-25 | 2010-06-02 | 南京西普水泥工程集团有限公司 | Expansion type cyclone |
| CN202149703U (en) * | 2011-07-14 | 2012-02-22 | 双鸭山新时代水泥有限责任公司 | Cyclone for rotary kiln tail preheating system |
| CN202532901U (en) * | 2012-03-27 | 2012-11-14 | 安徽海螺川崎装备制造有限公司 | Environment-friendly C-KSV cyclone cylinder |
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Application publication date: 20120815 |