CN201073640Y - Special-shaped blade separator - Google Patents
Special-shaped blade separator Download PDFInfo
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- CN201073640Y CN201073640Y CNU2007200804501U CN200720080450U CN201073640Y CN 201073640 Y CN201073640 Y CN 201073640Y CN U2007200804501 U CNU2007200804501 U CN U2007200804501U CN 200720080450 U CN200720080450 U CN 200720080450U CN 201073640 Y CN201073640 Y CN 201073640Y
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Abstract
The utility model relates to an abnormal blade classifying device, belonging to a classifying device of planar swirl classifier, which solves the problems that the classifying device in the prior planar swirl classifier has severe abrasive rotor blades, poor classifying precision, low classifying efficiency and small processing amount. The utility model comprises wind guide blades and rotor blades that are matched each other; the wind guide blades are arranged at the periphery of the rotor blades; an inward bending part is arranged on the outer side of the wind guide blades; the bending part and the body form a slotted hollow cavity; the inner side of the wind guide blades is extended inwards to form an extending part; the two ends of the rotor blades are respectively bent forwards or backwards in the shape of arc, so that the rotor blades form a reverse S shape; the rotor blades and the wind guide blades are distributed concentrically; the inlet of the rotor blades is bent backwards at an angle of 90 to 160 degrees; the outlet of the rotor blades is bent forwards at an angle of 90 to 150 degrees. The utility model is applicable for planar swirl classifier in architectural industry as classifying device.
Description
Technical field
The utility model relates to a pair of component of plane eddy current powder concentrator, particularly is applicable to the grading plant of the plane eddy current powder concentrator of building material industry.
Background technology
In the eddy current powder concentrator of existing plane, wind blade that employing cooperatively interacts and rotor blade are as grading plant, wind blade mostly adopts prismatic blade to be vertically mounted on rotor periphery, its airflow uniform distribution weak effect, and the air-flow by wind blade and the outer tangentially linear velocity deviation of rotor blade are big, cause running rotor blade wear serious; The also prismatic blade forms that adopt of existing rotor blade more, there be " inertia derotation whirlpool phenomenon " in inside, enter the meal of the fine powder of leaf area and blade outer because the influence of turbulent vortices all may cause " back-mixing ", therefore select the powder low precision, grinding efficiency is low, treating capacity is also little.
The utility model content
The purpose of this utility model be solve rotor blade serious wear that the grading plant in the eddy current powder concentrator of existing plane exists, select the powder low precision, problem that grinding efficiency is low, a kind of grading plant that is made of special-shaped wind blade and special-shaped rotor blade is provided, reasonable combination by two kinds of special-shaped blades, can not only improve the wearing and tearing of airflow uniform distribution effect, minimizing rotor blade, and can effectively eliminate " inertia derotation whirlpool phenomenon ", make and select powder precision, grinding efficiency to be improved.
The purpose of this utility model can realize by following technical proposals:
Adopt special special-shaped wind blade shape, make gas channel between the wind blade outer big in little, thereby the outer tangentially linear velocity that enters the air velocity of separating chamber and rotor blade is suitable; The abnormity wind blade has slotted cavities head and long blade afterbody, this structure not only provides the scalping chance for the material particles that enters with air-flow, and the coarse granule that the forced vortex that produced by rotor blade is shed out is easy to enter the slotted cavities head of special-shaped wind blade or loses kinetic energy and fall into the meal gatherer with the collision of blade afterbody; The abnormity rotor blade adopts the inlet palintrope, exports antecurvature structure, corresponding increase blade pitgh, and this improvement has effectively suppressed " inertia derotation whirlpool phenomenon ", is beneficial to entering of fine powder and dishing out of meal.
Concrete technical scheme can be:
Abnormity blade grading plant, comprise the wind blade and the rotor blade that cooperatively interact, wind blade is installed in the periphery of rotor blade, the outboard end of described wind blade is provided with an inside kink, this kink and its body constitute slotted cavities, the medial extremity of the wind blade formation extension that extends internally, two end arc-shaped bends of described rotor blade make rotor blade be anti-serpentine.Above-mentioned extension can extend the afterbody of more microscler one-tenth wind blade.
Be connected with the wind blade afterbody on the extension of described wind blade.
Described extension links into an integrated entity by bolt and wind blade afterbody.The said structure that adopts wind blade afterbody and head to be separated is convenient to change the wind blade head that is worn, and keeps the wind blade afterbody that is not worn, and not only can be convenient for changing blade, and can avoid the waste of blade.
The inlet of described rotor blade is to palintrope, and outlet is to antecurvature.The rotor blade structure of bending two ends can make the corresponding increase of spacing of adjacent two rotor blades, and this improvement has effectively suppressed " inertia derotation whirlpool phenomenon ", is beneficial to entering of fine powder and dishing out of meal.
Described wind blade evenly distributes around powder concentrator housing center, 45 °～75 ° of its setting angles, and in adjacent two wind blades, wherein the extension of another sheet of kink of a slice and opposite side is parallel to each other.
Described rotor blade and wind blade are the circle distribution of concentric, and the recurved angle of the inlet of rotor blade is 90 °～160 °, and the outlet of rotor blade is 90 °～150 ° to antecurvature angle.The angle of bend at the setting angle of above-mentioned wind blade and rotor blade two ends matches, and has satisfied the requirement that the classification of rotary course medium silt is selected, and has improved the precision and the efficient of sorting.
The quantity of described wind blade is 12～120.
The quantity of described rotor blade is 18～150.
Wind blade outboard end of the present utility model is a head, medial extremity is an afterbody, at its head inside kink is set, and be provided with than long afterbody, make and constitute outer little interior big gas channel between adjacent two wind blades, not only for the material particles that enters with air-flow provides the scalping chance, the coarse granule that the forced vortex that produced by rotor blade is shed out is easy to enter the slotted cavities head of special-shaped wind blade or loses kinetic energy and fall into the meal gatherer with the collision of blade afterbody; The structure of rotor blade bending two ends makes the corresponding increase of rotor blade spacing, and its angle of bend matches with the setting angle of wind blade, has improved the precision and the efficient of sorting.And, reduced the collision between powder and the rotor blade, thereby reduced the wearing and tearing of rotor blade because said structure has improved the airflow uniform distribution effect.
As seen, adopt the utility model of said structure, compared with prior art, have the beneficial effect that can improve the airflow uniform distribution effect, reduce the wearing and tearing of rotor blade, and can effectively eliminate " inertia derotation whirlpool phenomenon ", make and select powder precision, grinding efficiency to be improved.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of wind blade of the present utility model;
Fig. 3 is the structural representation of rotor blade of the present utility model;
Number in the figure, the 1st, the wind blade afterbody, the 2nd, wind blade head, the 3rd, rotor blade arrival end, the 4th, the rotor blade port of export, the 5th, wind blade, the 6th, rotor blade, the 7th, the gas channel between wind blade, the 8th, the kink of wind blade head, the 9th, the slotted cavities of wind blade head, the 10th, the extension of wind blade.
The specific embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
Embodiment 1: as shown in Figure 1, special-shaped blade grading plant is made of wind blade 5 that cooperatively interacts and rotor blade 6, and wind blade 5 is distributed in the periphery of rotor blade 6, and the circumference that both are concentric evenly distributes.
As shown in Figure 2, wind blade 5 is divided into wind blade head 2 and wind blade afterbody 1 two parts.The outboard end of wind blade head 2 is provided with an inside kink 8, constitutes slotted cavities 9 between the body of this kink 8 and wind blade half one 2, and the medial extremity of wind blade head 2 extends internally and constitutes extension 10.Thereby extension 10 can extend inward into sufficiently long length directly constitutes the wind blade afterbody, but for the ease of changing the wind blade head that in use can be worn, in the present embodiment, extension 10 is connected with wind blade afterbody 1 by bolt.Wind blade 5 is fixedly mounted in the vortex classifier spiral case of plane.As shown in Figure 1, in adjacent two wind blades 5, wherein the kink 8 of a slice is parallel to each other with the extension 9 (or the wind blade afterbody 1 that is connected with extension 9) of another sheet of opposite side, since the length of kink 8 less than the length of extension 9 and wind blade afterbody 1 and, thereby constitute outer little in big gas channel 7.
As shown in Figure 3, the bending two ends of rotor blade 6 is anti-serpentine, and its arrival end 3 is to palintrope, and the port of export 4 is to antecurvature.
As Fig. 1, Fig. 2 and shown in Figure 3, the setting angle of wind blade 5, blade quantity and the arrival end of rotor blade 6 and the angle of bend of the port of export (β, γ), blade quantity are different and different with selected powder characteristics according to the powder concentrator model.The setting angle of wind blade 5 is meant the line between the center of circle that the length direction mid point in its cross section, extension and its installation distribute, and the angle between the extended line of the length direction in the cross section, extension of wind blade 5.In the present embodiment, setting angle α=45 of wind blade 5 °, the quantity of wind blade is 60; Rotor blade arrival end 3 recurvate angle beta=120 °, the prone angle γ of the rotor blade port of export=90 °, the quantity of rotor blade is 75.
In the course of work of abnormity blade grading plant, powder material is with selecting the powder air-flow to enter separating chamber from the gas channel 7 between the wind blade 5, in the process that enters, because passage is outer little interior big version, make powder have bigger admission velocity, the tangential linear velocity of this speed and rotor blade 6 is suitable, thereby the wearing and tearing of the rotor blade 6 that causes because of speed difference have effectively been avoided, outer simultaneously little interior big version makes the powder that enters produce wall attachment effect, meal and 1 collision of wind blade afterbody produce scalping, and fine powder continues to move ahead.
In separating chamber, stablize strong plane rotating vortex because rotor blade 6 produces, make the suffered centrifugal force of meal drag power greater than air and tangentially shed, enter the slotted cavities 9 of wind blade head 2 or lose kinetic energy and fall into the meal gatherer with the collision of blade afterbody, fine powder is then dragged power because of air and is entered internal rotor greater than centrifugal force, because the rotor blade of having bent before and after having adopted 6, the corresponding spacing that increases rotor blade 6, the fine powder that then enters can not cause " back mixing " because of " inertia derotation whirlpool phenomenon ".
Embodiment 2: basic structure such as embodiment 1, and setting angle α=60 of wind blade 5 ° wherein, the quantity of wind blade is 12; Rotor blade arrival end 3 recurvate angle beta=90 °, the prone angle γ of the rotor blade port of export=120 °, the quantity of rotor blade is 18.
Embodiment 3: basic structure such as embodiment 1, and setting angle α=75 of wind blade 5 ° wherein, the quantity of wind blade is 24; Rotor blade arrival end 3 recurvate angle beta=100 °, the prone angle γ of the rotor blade port of export=100 °, the quantity of rotor blade is 36.
Embodiment 4: basic structure such as embodiment 1, and setting angle α=45 of wind blade 5 ° wherein, the quantity of wind blade is 36; Rotor blade arrival end 3 recurvate angle beta=160 °, the prone angle γ of the rotor blade port of export=150 °, the quantity of rotor blade is 48.
Embodiment 5: basic structure such as embodiment 1, and setting angle α=75 of wind blade 5 ° wherein, the quantity of wind blade is 72; Rotor blade arrival end 3 recurvate angle beta=120 °, the prone angle γ of the rotor blade port of export=90 °, the quantity of rotor blade is 80.
Embodiment 6: basic structure such as embodiment 1, and setting angle α=45 of wind blade 5 ° wherein, the quantity of wind blade is 96; Rotor blade arrival end 3 recurvate angle beta=120 °, the prone angle γ of the rotor blade port of export=90 °, the quantity of rotor blade is 112.
Embodiment 7: basic structure such as embodiment 1, and setting angle α=60 of wind blade 5 ° wherein, the quantity of wind blade is 120; Rotor blade arrival end 3 recurvate angle beta=90 °, the prone angle γ of the rotor blade port of export=120 °, the quantity of rotor blade is 144.
Claims (8)
1. special-shaped blade grading plant, comprise the wind blade (5) and the rotor blade (6) that cooperatively interact, wind blade (5) is installed in the periphery of rotor blade (6), it is characterized in that: the outboard end of described wind blade (5) cross section is provided with an inside kink (8), this kink (8) constitutes slotted cavities (9) with its body, the medial extremity of wind blade (5) cross section extends internally and constitutes extension (10), two end arc-shaped bends of described rotor blade (6) cross section make rotor blade (6) cross section be anti-serpentine.
2. special-shaped according to claim 1 blade grading plant is characterized in that: be connected with wind blade afterbody (1) on the extension (10) of described wind blade (5).
3. as special-shaped blade grading plant as described in the claim 2, it is characterized in that: described extension (10) links into an integrated entity by bolt and wind blade afterbody (1).
4. as special-shaped blade grading plant as described in claim 1 or 2 or 3, it is characterized in that: the inlet of described rotor blade (6) is to palintrope, and outlet is to antecurvature.
5. as special-shaped blade grading plant as described in the claim 4, it is characterized in that: described wind blade (5) evenly distributes around powder concentrator housing center, 45 °～75 ° of its setting angles, in adjacent two wind blades (5), wherein the kink of a slice (8) is parallel to each other with the extension (10) of another sheet of opposite side.
6. as special-shaped blade grading plant as described in the claim 5, it is characterized in that: described rotor blade (6) and wind blade (5) are the circle distribution of concentric, the recurved angle of inlet of rotor blade (6) is 90 °～160 °, and the outlet of rotor blade (6) is 90 °～150 ° to antecurvature angle.
7. as special-shaped blade grading plant as described in the claim 6, it is characterized in that: the quantity of described wind blade (5) is 12～120.
8. as special-shaped blade grading plant as described in the claim 7, it is characterized in that: the quantity of described rotor blade (6) is 18～150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200804501U CN201073640Y (en) | 2007-07-27 | 2007-07-27 | Special-shaped blade separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200804501U CN201073640Y (en) | 2007-07-27 | 2007-07-27 | Special-shaped blade separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201073640Y true CN201073640Y (en) | 2008-06-18 |
Family
ID=39518903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200804501U Expired - Lifetime CN201073640Y (en) | 2007-07-27 | 2007-07-27 | Special-shaped blade separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201073640Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454988A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| CN102454986A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Coal burner and boiler |
| CN110743791A (en) * | 2019-10-25 | 2020-02-04 | 江苏吉能达环境能源科技有限公司 | Superfine stone powder grader |
-
2007
- 2007-07-27 CN CNU2007200804501U patent/CN201073640Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454988A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| CN102454986A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Coal burner and boiler |
| CN102454988B (en) * | 2010-11-01 | 2014-10-15 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| CN102454986B (en) * | 2010-11-01 | 2014-10-22 | 烟台龙源电力技术股份有限公司 | Coal burner and boiler |
| CN110743791A (en) * | 2019-10-25 | 2020-02-04 | 江苏吉能达环境能源科技有限公司 | Superfine stone powder grader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080618 |
|
| CX01 | Expiry of patent term |