CN105583155A - Double-regulation flow distribution type efficient separator - Google Patents
Double-regulation flow distribution type efficient separator Download PDFInfo
- Publication number
- CN105583155A CN105583155A CN201610167090.2A CN201610167090A CN105583155A CN 105583155 A CN105583155 A CN 105583155A CN 201610167090 A CN201610167090 A CN 201610167090A CN 105583155 A CN105583155 A CN 105583155A
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- CN
- China
- Prior art keywords
- distributor
- separator
- inner cone
- feeding pipe
- separator inner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 47
- 239000003245 coal Substances 0.000 claims abstract description 12
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Landscapes
- Cyclones (AREA)
Abstract
The invention provides a double-regulation flow distribution type efficient separator. According to the double-regulation flow distribution type efficient separator, the pressure drop is low, the separating efficiency is high, the uniformity of outlet powder is good, and the regulation performance is good. The double-regulation flow distribution type efficient separator comprises a pulverized coal inlet, a separator shell, a separator inner cone, a distributor, radial vanes, axial vanes, a pulverized coal outlet and a feeding pipe. The pulverized coal inlet is located in the small-diameter end of the separator inner cone. The separator inner cone is installed in the separator shell. The feeding pipe is inserted in the separator inner cone. The feeding pipe is sleeved with the distributor. The distributor is in a funnel shape. Open seam structures are formed in the vertical lower section of the distributor and distributed along the circumference. Seams of the open seam structures extend in the axis direction of the distributor. The radial vanes are located at the large-diameter end of the separator inner cone and distributed along an annular belt between the inner wall of the separator inner cone and the outer wall of the distributor in the circumferential direction. The axial vanes are installed on the outer wall of the feeding pipe and located in the distributor. The pulverized coal outlet is located in the upper end of the distributor. The number of the axial vanes is larger than one.
Description
Technical field
The present invention relates to a kind of separator for Vertical Mill, specifically refer to a kind of two shunting efficient cyclone that regulates.
Background technology
Vertical Mill is a kind of desirable large-scale milling equipment, is widely used in the industries such as cement, electric power, metallurgy, chemical industry, nonmetallic ore. It integrates broken, dry, grinding, classification is carried, and production efficiency is high, block, graininess and powder raw material can be worn into desired granular material. Vertical Mill is the indispensable visual plant of grinding industry, Vertical Mill is applicable to grind the powdered milling operation of the medium-hard material such as bituminous coal and meager coal, it has the parts of milling of two groups of relative motions, mill parts under spring force, hydraulic coupling or other External Force Acting, raw coal is therebetween pushed and milled, finished breaking powdered; By the parts rotation of milling, broken pulverized powder is thrown to vane chamber, and the thermal air current of the vane chamber of flowing through takes these powder to the powder separator on Vertical Mill top, and excessively thick powder is separated to get off and again regrind, in this process, hot blast is also accompanied by being dried powder; In abrasive dust process, be thrown to the foreign material such as a small amount of stone and ironware of carrying secretly in the former powder of also having of vane chamber simultaneously, they finally fall into glove compartment, are regularly discharged. Through above-mentioned process, Vertical Mill can provide qualified powder for electric power, metallurgy, chemical industry etc.
The separation classification of powder (particle) is the significant process in powder technology, and separator is the key equipment of realizing this process, in the various Vertical Mills of the industries such as electric power, metallurgy, chemical industry, is all absolutely necessary. Particularly, in coal fired power generation, separator is as the important component part of pulverized coal preparation system, and on the effects of energy saving and emission reduction impact of power plant obviously, good separator has larger positive acting to boiler combustion efficiency to its performance quality, can reduce preferably net coal consumption rate level.
In prior art, for the separator primary structure on Vertical Mill as shown in Figure 1, it comprises wind powder entrance 01, wind powder outlet 02, separator inner cone 03, distributor 04, radial blade 05 and feeding pipe 06; Wind powder entrance 01 and wind powder outlet 02 lay respectively at lower end and the upper end of separator inner cone 03; Described distributor 04 and radial blade 05 are installed on the upper end of separator inner cone 03; Described feeding pipe 06 is through in separator inner cone 03. The separator of this static structure, because radially baffle plate regulating effect is poor, has caused fineness of powder and lack of homogeneity, and the requirement that makes factory usually can not meet high-quality powder simultaneously and suitably exert oneself affects the economy of factory. In order to solve the weak point of separator of static structure, in prior art, also has a kind of dynamic separator, solve the defect of the separator of static structure by increasing dynamic component and electric motor and controller system, but owing to having increased dynamic component and electric motor and controller system, in use procedure, also there are many problems, as large in the vibrations increase, energy consumption increase, pressure drop increase, the maintenance that make Li Mo etc., have a strong impact on security, reliability and economy that factory's scratch system is moved.
In sum, in prior art for the separator on Vertical Mill have that separative efficiency is low, the shortcoming such as the high and energy consumption level of high, the powder lack of homogeneity of outlet fineness of powder, pressure drop is high.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and has that pressure drop is low, separative efficiency is high, two adjusting shunting efficient cyclones of outlet powder good uniformity and the advantage such as adjusting function is good.
For solving the problems of the technologies described above, technical scheme provided by the invention is: a kind of two shunting efficient cyclones that regulate, and it comprises wind powder entrance, shell separator, separator inner cone, distributor, radial blade, axial blade, the outlet of wind powder and feeding pipe; Described wind powder entrance is positioned at the small-caliber end of separator inner cone; Described separator inner cone is arranged in shell separator; Described feeding pipe is inserted in separator inner cone; Described distributor is enclosed within on feeding pipe, and described distributor is funnel-form, and vertical section of distributor bottom is provided with some slotting structures; Described slotting structure circumferentially, and extend along the axis direction of distributor by the gap of slotting structure; Described radial blade is positioned at the heavy caliber end of separator inner cone, and described radial blade is along the endless belt circle distribution between inwall and the distributor outer wall of separator inner cone; Described axial blade is arranged on the outer wall of feeding pipe, and described axial blade is positioned at distributor; Described wind powder outlet is positioned at the upper end of distributor; The number of described axial blade is greater than 1.
As preferably, the angle energy free adjustment of described axial blade and horizontal direction, its adjustable range is 0 ° ~ 90 °.
As preferably, the angle between the depth direction of described slotting structure and the tangential direction of described slotting structure is α, and α angular range is 0 ° of < α≤90 °.
As preferably, the angle value of described α is 60 degree. At this moment most of qualified fine particle can pass through slotting structure, and underproof bulky grain can not be followed air-flow completely and be stopped to get off by the inwall of slit, has realized the initial gross separation of large or fine granule, has reduced pressure drop when raising the efficiency.
Adopt after said structure, the present invention has following beneficial effect: the two shunting efficient cyclones that regulate that the present invention relates to have carried out significant improvement to existing separator, increase shunting slit and axial blade, made this pair of adjusting shunting efficient cyclone have following point than the separator are of traditional structure:
1) part air-flow and fine powder be rear directly by slotting structure 6 by radial blade 5, improved exerting oneself of Vertical Mill when the pressure drop of reduction separator.
2) axial blade 7 can increase the regulating power of separator to powder fineness, solves the poor problem of existing separator adjusting function, and axial blade can be improved the harmony of each powder arm simultaneously.
In sum, the invention provides a kind ofly have that pressure drop is low, separative efficiency is high, two adjusting shunting efficient cyclones of outlet powder good uniformity and the advantage such as adjusting function is good.
Brief description of the drawings
Fig. 1 is the structural representation of separator in prior art.
Fig. 2 is the two structural representations that regulate shunting efficient cyclone embodiment mono-of the present invention.
Fig. 3 is the cross-sectional view of the A-A face in Fig. 2.
Fig. 4 is the schematic diagram of the slotting structure on the distributor of separator in the present invention.
Fig. 5 is the local enlarged diagram of Fig. 4.
Fig. 6 is the two structural representations that regulate shunting efficient cyclone embodiment bis-of the present invention.
Fig. 7 is the enlarged diagram of the two axial blade that regulate shunting efficient cyclone of the present invention.
As shown in the figure: 01, wind powder entrance, 02, wind powder outlet, 03, separator inner cone, 04, distributor, 05, radial blade, 06, feeding pipe, 1, wind powder entrance, 2, shell separator, 3, separator inner cone, 4, distributor, 5, radial blade, 6, slotting structure, 7, axial blade, 8, wind powder outlet, 9, feeding pipe, the gap angle of α, slotting structure, the angle of β, axial blade and horizontal direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Specific embodiment one
2 to accompanying drawing 5 by reference to the accompanying drawings, a kind of two shunting efficient cyclones that regulate, and it comprises wind powder entrance 1, shell separator 2, separator inner cone 3, distributor 4, radial blade 5, axial blade 7, the outlet 8 of wind powder and feeding pipe 9; Described wind powder entrance 1 is positioned at the small-caliber end of separator inner cone 3; Described separator inner cone 3 is arranged in shell separator 2; Described feeding pipe 9 is inserted in separator inner cone 3; Described distributor 4 is enclosed within on feeding pipe 9, and described distributor 4 is funnel-form, and vertical section of distributor 4 bottoms is provided with some slotting structures 6; Described slotting structure 6 circumferentially, and extend along the axis direction of distributor 4 by the gap of slotting structure; Described radial blade 5 is positioned at the heavy caliber end of separator inner cone 3, and described radial blade 5 is along the endless belt circle distribution between inwall and distributor 4 outer walls of separator inner cone 3; Described axial blade 7 is arranged on the outer wall of feeding pipe 9, and described axial blade 7 is positioned at distributor 4; Described axial blade 7 is positioned at the top of slotting structure 6. Described wind powder outlet 8 is positioned at the upper end of distributor 4; The number of described axial blade 7 is greater than 1. Described axial blade 7 and the angle energy free adjustment of horizontal direction, its adjustable range is 0 ° ~ 90 °. Angle between the described depth direction of slotting structure 6 and the tangential direction of described slotting structure is α, and α angular range is 0 ° of < α≤90 °. As further preferred, the angle value of described α is 60 degree.
Specific embodiment two
Further combined with accompanying drawing 6, a kind of two shunting efficient cyclones that regulate, it comprises wind powder entrance 1, shell separator 2, separator inner cone 3, distributor 4, radial blade 5, axial blade 7, the outlet 8 of wind powder and feeding pipe 9; Described wind powder entrance 1 is positioned at the small-caliber end of separator inner cone 3; Described separator inner cone 3 is arranged in shell separator 2; Described feeding pipe 9 is inserted in separator inner cone 3; Described distributor 4 is enclosed within on feeding pipe 9, and described distributor 4 is funnel-form, and vertical section of distributor 4 bottoms is provided with some slotting structures 6; Described slotting structure 6 circumferentially, and extend along the axis direction of distributor 4 by the gap of slotting structure; Described radial blade 5 is positioned at the heavy caliber end of separator inner cone 3, and described radial blade 5 is along the endless belt circle distribution between inwall and distributor 4 outer walls of separator inner cone 3; Described axial blade 7 is arranged on the outer wall of feeding pipe 9, and described axial blade 7 is positioned at distributor 4; Described axial blade 7 is positioned at the below of slotting structure 6. Described wind powder outlet 8 is positioned at the upper end of distributor 4; The number of described axial blade 7 is greater than 1. Described axial blade 7 and the angle energy free adjustment of horizontal direction, its adjustable range is 0 ° ~ 90 °. Angle between the described depth direction of slotting structure 6 and the tangential direction of described slotting structure is α, and α angular range is 0 ° of < α≤90 °. As further preferred, the angle value of described α is 60 degree.
In above-mentioned two embodiment, as further improvement, described axial blade 7 and the angle energy free adjustment of horizontal direction, its adjustable range is 30 ° ~ 90 °. It should be noted that in addition in accompanying drawing 2 and illustrated to identify the roughly direction of motion of powder in separator by arrow. Also can find out from the signal of arrow, the separator the present invention relates to is stronger to the regulating power of powder fineness in real work. Described axial blade 7 can also be arranged at the centre of slotting structure 6.
As follows about the special instruction of slotting structure 6 in addition, in accompanying drawing in the embodiment of the present invention, slotting structure is to illustrate with the seam of vertical structure, but when practical operation, slotting structure can have various ways, as vertical seam, horizontal joint, R-joining, circular hole etc., are all the technique effects that can reach identical.
Further illustrating of two angles that relate in the present invention is as follows: the gap angle of α, slotting structure, the angle of β, axial blade and horizontal direction. Be construed as for fear of ambiguity: the gap angle that α is slotting structure refers to the angle between the depth direction of slotting structure 6 and the tangential direction of described slotting structure, wherein the tangent line in the tangential direction of slotting structure refers to that the crosspoint of the center line in gap and the circular ring structure of distributor bottom is in the tangent line on annulus, and depth direction wherein refers to the direction of gap passes therethrough. The angle of β, axial blade and horizontal direction, with further reference to accompanying drawing 7, under separator duty, axial blade is to swing along the center line of self length direction of blade, the pendulum angle of axial blade is that scope is 0 to 90 degree, further combined with accompanying drawing 3, when axial blade swing to 0 while spending, the space between distributor 4 and feeding pipe 9 that axial blade is blocked is maximum.
Because Vertical Mill is a comparatively wide in range concept, in the time applying to different fields, the powder that Vertical Mill grinds is also had nothing in common with each other, and taking the medium-speed pulverizer comparatively widely in the utilization of coal-grinding field as example, it is the one of Vertical Mill. When the two adjusting shunting efficient cyclones that the present invention relates to apply on medium-speed pulverizer, what in described feeding pipe 9, add is coal. Confirm by practice, during for coal-grinding, this separator are has following advantage: 1, part air-flow and fine breeze be rear directly by slotting structure 6 by radial blade 5, improves exerting oneself of coal pulverizer when reducing the pressure drop of separator. 2, axial blade 7 can increase the regulating power of separator to coal dust fineness, solves the poor problem of existing separator adjusting function, and simultaneously axial blade can be improved the harmony of each coal dust arm, thus the discharge of content of combustible carbon and NOx in reduction flying dust.
Above the present invention and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this. If generally speaking those of ordinary skill in the art is enlightened by it, in the situation that not departing from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (4)
1. two shunting efficient cyclones that regulate, is characterized in that: it comprises wind powder entrance (1), shell separator (2), separator inner cone (3), distributor (4), radial blade (5), axial blade (7), wind powder outlet (8) and feeding pipe (9) etc.; Described wind powder entrance (1) is positioned at the small-caliber end of separator inner cone (3); Described separator inner cone (3) is arranged in shell separator (2); Described feeding pipe (9) is inserted in separator inner cone (3); It is upper that described distributor (4) is enclosed within feeding pipe (9), and described distributor (4) is funnel-form, and vertical section of distributor (4) bottom is provided with some slotting structures (6); Described slotting structure (6) circumferentially, and extend along the axis direction of distributor (4) by the gap of slotting structure; Described radial blade (5) is positioned at the heavy caliber end of separator inner cone (3), and described radial blade (5) is along the endless belt circle distribution between inwall and distributor (4) outer wall of separator inner cone (3); Described axial blade (7) is arranged on the outer wall of coal pipe (9), and described axial blade (7) is positioned at distributor (4); Described wind powder outlet (8) is positioned at the upper end of distributor (4); The number of described axial blade (7) is greater than 1.
2. two shunting efficient cyclone that regulates according to claim 1, is characterized in that: described axial blade (7) and the angle energy free adjustment of horizontal direction, its adjustable range is 0 ° ~ 90 °.
3. two shunting efficient cyclone that regulates according to claim 1, it is characterized in that: the angle between depth direction and the tangential direction of described slotting structure of described slotting structure (6) is α, α angular range is 0 ° of < α≤90 °.
4. two shunting efficient cyclone that regulates according to claim 1, is characterized in that: the angle value of described α is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167090.2A CN105583155B (en) | 2016-03-23 | 2016-03-23 | Double adjusting shunting efficient cyclones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167090.2A CN105583155B (en) | 2016-03-23 | 2016-03-23 | Double adjusting shunting efficient cyclones |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105583155A true CN105583155A (en) | 2016-05-18 |
| CN105583155B CN105583155B (en) | 2018-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610167090.2A Active CN105583155B (en) | 2016-03-23 | 2016-03-23 | Double adjusting shunting efficient cyclones |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967217A (en) * | 2019-03-28 | 2019-07-05 | 中国华能集团清洁能源技术研究院有限公司 | Axial separator for medium speed coal mill and separation method thereof |
| CN115646601A (en) * | 2022-09-14 | 2023-01-31 | 北京电力设备总厂有限公司 | Multistage pulverized coal separation equipment with remote adjustment function and separation method |
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| CN109967217B (en) * | 2019-03-28 | 2024-06-21 | 中国华能集团清洁能源技术研究院有限公司 | Axial separator for medium-speed coal mill and separation method of axial separator |
| CN115646601A (en) * | 2022-09-14 | 2023-01-31 | 北京电力设备总厂有限公司 | Multistage pulverized coal separation equipment with remote adjustment function and separation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105583155B (en) | 2018-10-30 |
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