CN2382483Y - High efficiency energy saving eddy air grading machine - Google Patents
High efficiency energy saving eddy air grading machine Download PDFInfo
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- CN2382483Y CN2382483Y CN 99234784 CN99234784U CN2382483Y CN 2382483 Y CN2382483 Y CN 2382483Y CN 99234784 CN99234784 CN 99234784 CN 99234784 U CN99234784 U CN 99234784U CN 2382483 Y CN2382483 Y CN 2382483Y
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Abstract
The utility model discloses a high-efficiency energy-saving eddy air classifier which is mainly composed of a vertical shaft (1), a fine powder outlet (2), a feed inlet (3), a rotating cage (6), a flow guide blade (7), air inlets (8, 16), a volute casing (9), a cone (10), a discharge opening (13), a vertical rod (21), etc. The utility model has the advantages that the air inlet adopts symmetrical air inflow of a uniform cross section, and narrow blades are additionally arranged among radial blades; vortex line-shaped blades are adopted; the utility model additionally provided with the vertical rod and a convex arris with a hollow diameter core, so the classification efficiency and the classification accuracy index of the classifier are further increased. The utility model which reasonable design and convenient processing and fabrication can be applied to powder preparing systems of cement industry, chemical industry, metallurgy industry, mineral processing industry, medicine industry, etc.
Description
The utility model relates to air-flow fine powder material isolated equipment from powder, the particularly a kind of raw mill in cement plant and air classification equipment of cement grinding mill of being used for.
The dynamic air grader that is used for cement industry has three generation products.The centrifugal grader of the first generation has and integrates separation of material, air circulation and fine powder captures the characteristics of three functions, and to carry dust in the circulating current too much but exist, and causes the actual material concentration of graded region to greatly increase; Wind velocity gradient is excessive in the graded region, makes the cut diameter inequality; Significant three major defects of wall effect.The cyclone type grader is compared with machine with centrifugal grader air feed in the circulating fan replacement machine is set outward, replace the major diameter urceolus to collect fine powder with the whirly tube, improved dust-collecting efficiency, dust content in the circulating current reduces significantly, but does not overcome second, third two defectives of centrifugal grader yet.The Ao Saipa that develops with Japanese late nineteen seventies is that the third generation vortex classifier of representative is because the self structure characteristics, significantly improved the classification field of force and material dispersed degree, make its classification efficiency and effectiveness of classification and, two generation grader compare greatly and improve.Introduce the digestion foreign technology domestic the late nineteen eighties and develop the turbo air classifier of oneself, but classification efficiency is low, not enough to turbo air classifier flow field characteristic research both at home and abroad, still clear inadequately on the theory analysis, the result causes the development of vortex classifier and improvement direction clear and definite inadequately.For example existing turbo air classifier does not consider that all thereby inertia derotation eddy current will cause the radially asymmetric cut diameter dispersion that causes turbo air classifier of flow velocity in the passage between the rotating cage blade between the rotating cage blade, and classification efficiency and effectiveness of classification descend.The turbulence vortex of also not considering different frequency yardstick between rotating cage outward flange and guide vane inward flange is to the influence of dispersion, classification and the measure of change turbulence vortex spectrum distribution raising branch stage material degree of scatter; More do not consider the influence of spreading disk pattern, rotating cage pattern, air inlet pattern, so the reduction of the raising of third generation turbo air classifier classification efficiency and effectiveness of classification and drag losses still has very big potentiality to grading effect.
The purpose of this utility model is to overcome the deficiency of existing vortex classifier, and a kind of classification efficiency and high energy-conservation turbo air classifier of effectiveness of classification that industries such as cement, chemical industry, mineral processing, medicine, food are used that be used for is provided.
Technical solution of the present utility model is achieved in that
A kind of energy-efficient turbo air classifier, it mainly is by vertical shaft (1), fine powder outlet (2), charging aperture (3), rotating cage (6), guide vane (7), an air inlet (8), secondary air mouth (16), spiral case (9), cone (10), discharge port (13), counterpunch board (17) and sealing ring formations such as (19).Spiral case (9) adopts double volute, adopts uiform section symmetry air intake, and air inlet (8,16) is located at this spiral case both sides respectively.Rotating cage (6) mainly is made up of spreading disk (5), radial blade (11), narrow blades (20), bearing support (14) and horizontal baffle (15).Spreading disk (5) is provided with radially fin (4), this spreading disk (5) is fixed on rotating cage (6) top, radial blade (11) and narrow blades (20) separately along circumference evenly radially be installed in spreading disk (5) below and be fixed on by several horizontal baffles (15) and support (14) on axle sleeve (12) wall of vertical shaft (1).
In this technical scheme, the outside of rotating cage (6) radial blade (11) can be provided with several montants (21), and this montant parallels with radial blade (11) outer rim.Radially fin (4) on the spreading disk (5) can adopt hollow drive to fin.
Technical solution of the present utility model can also realize like this:
A kind of energy-efficient turbo air classifier, rotating cage (6) mainly are made up of spreading disk (5), vortex filament type blade (11), bearing support (14) and horizontal baffle (15).This spreading disk is provided with radially fin (4), spreading disk (5) is fixed on the top of rotating cage (6), vortex filament type blade (11) along circumference radially evenly be installed in spreading disk (5) below and be fixed on by several horizontal baffles (15) and support (14) on axle sleeve (12) wall of vertical shaft (1).
In this technical scheme, the outside of rotating cage (6) vortex filament type blade (11) can be provided with several montants (21), and this montant parallels with radial blade (11) outer rim.The radially fin (4) of spreading disk (5) can adopt hollow drive to fin.
The utility model has the advantages that:
1, the utility model adopts double volute, and air inlet adopts uiform section symmetry air intake, and this air intake form is compared with the asymmetric air intake of unequal section, has improved the classification efficiency and the effectiveness of classification index of grader.
2, can reduce inertia derotation eddy current between the rotating cage radial blade setting up narrow blades between the radial blade of rotating cage, improve the effectiveness of classification index of grader.
3, the rotating cage blade adopts vortex filament type (streamlined) blade, and cut diameter is reduced, effectiveness of classification index height, and drag losses reduces.
4, the montant parallel with the blade outer rim is set outside the rotating cage blade, improved the interior turbulence vortex spectrum distribution of annulus between rotating cage outward flange and the guide vane inward flange, divide the stage material decentralization to increase, cut diameter reduces, and the effectiveness of classification index improves.
5, the radially fin of spreading disk employing top is hollow radially fin, can reduce cut diameter, improves grading index.
6, this utility model is reasonable in design, and processing and fabricating is convenient, and grading effect is good, saves the energy, can be widely used in the powder producing system in the industries such as cement, chemical industry, metallurgy, mineral processing, medicine, food.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is embodiment 1 and embodiment 2 structural representations.
Fig. 2 is embodiment 1 Figure 1A-A cutaway view.
Fig. 3 is embodiment 2 Figure 1A-A cut-away view.
Fig. 4 is embodiment 3 and embodiment 4 structural representations.
Fig. 5 is embodiment 3 Fig. 4 B-B cutaway views.
Fig. 6 is embodiment 4 Fig. 4 B-B cutaway views.
Fig. 7 is embodiment 5 and embodiment 6 structural representations.
Fig. 8 is the schematic top plan view of spreading disk.
Embodiment 1:
As depicted in figs. 1 and 2.The utility model mainly is made up of vertical shaft 1, fine powder outlet 2, charging aperture 3, rotating cage 6, air inlet 8, secondary air mouth 16, guide vane 7, spiral case 9, cone 10, discharge port 13, counterpunch board 17, sealing ring 19 etc.This utility model main body is a double volute shape whirlwind tube, fine powder outlet 2 is located on spiral case 9 top covers, two charging apertures 3 are located at fine powder respectively and export 2 both sides, in the spiral case top cover, be provided with labyrinth seal 19 between charging aperture 3 and the fine powder outlet 2, be provided with annular counterpunch board 17 at spiral case 9 top cover Internal and external cycles.Air inlet 8 and secondary air mouth 16 are located at the both sides of spiral case 9 respectively, adopt uiform section symmetry air intake.Cone 10 is installed below the spiral case, is provided with discharge port 13 below the cone.Rotating cage 6 is installed in spiral case 9, and this rotating cage 6 mainly is made up of spreading disk 5, radial blade 11, narrow blades 20, horizontal baffle 15 and bearing support 14.Spreading disk 5 is provided with radially fin 4, and spreading disk 5 inboards are welded with inner core 18 (referring to Fig. 8); Spreading disk 5 is fixed on the top of rotating cage 6, radial blade 11 and narrow blades 20 separately along circumference evenly radially be installed in spreading disk 5 below, and be fixed on by several piece horizontal baffle 15 and support 14 on axle sleeve 12 walls of vertical shaft 1, vertical shaft is driven by variable-speed motor.The outside along rotating cage 6 in the spiral case 9 evenly is equipped with the vertical guide vane 7 of a circle.
The course of work of this utility model is as follows:
Material is from the spreading disk 5 of two charging apertures, the 3 feeding rotating cage top covers at spiral case top, and the spreading disk of rotation is thrown to powder the counterpunch board 17 of outer ring.Powder is clashed into the long and narrow annular space (Disengagement zone) that disperses back change direction to drop between rotating cage 6 and the guide vane 7 and is formed strip.Two strands of air-flows are separated by by the housing both sides in two symmetrical air inlet 8,16 introducing machines of 180 °.Guide vane 7 makes the interior gas of machine form strong level rotary flow with the comprehensive function that rotating cage 6 rotates, and the existing inertia along the tangent line moving linearly of particle is subjected to the entad effect of carrying under one's arms of air-flow again.Coarse granule inertia is bigger, and is separated from the gas with wall collision back, falls into cone 10, draws off from discharge port 13; Fine grained is carried under one's arms to be entered in the rotating cage 6, finally exports 2 sucking-offs from fine powder, and the fine powder that is captured by dust-precipitator is finished product.
As shown in figures 1 and 3.The utility model mainly is made of vertical shaft 1, fine powder outlet 2, charging aperture 3, rotating cage 6, guide vane 7, air inlet 8, secondary air mouth 16, spiral case 9, cone 10, discharge port 13, counterpunch board 17, sealing ring 19 etc.Rotating cage 6 is installed in spiral case 9, and this rotating cage 6 mainly is made up of spreading disk 5, vortex filament type blade 11, horizontal baffle 15 and bearing support 14 etc.Spreading disk 5 is fixed on rotating cage 6 tops, vortex filament type blade 11 along circumference evenly radially be installed in spreading disk 5 below, and be fixed on by 2～4 horizontal baffles 15 and support 14 on the wall of axle sleeve 12 of vertical shaft 1.Other structure of present embodiment and operation principle are substantially with embodiment 1.
Embodiment 3:
As shown in Figure 4 and Figure 5.The utility model mainly is made of vertical shaft 1, fine powder outlet 2, charging aperture 3, rotating cage 6, guide vane 7, air inlet 8, secondary air mouth 16, spiral case 9, cone 10, discharge port 13, counterpunch board 17, sealing Figure 19 etc.The present embodiment difference from Example 1 is: rotating cage 6 mainly is made up of spreading disk 5, radial blade 11, narrow blades 20, montant 21, horizontal baffle 15 and bearing support 14 etc.Montant 21 symmetries are installed in the outside of radial blade 11 and parallel with the outer rim of this blade, and the quantity of this montant is generally even numbers such as 2,4,8,12.Being provided with of montant can further increase classification material dispersed degree, reduces cut diameter, improves effectiveness of classification.Other structure of present embodiment and operation principle are substantially with embodiment 1.
Embodiment 4:
As Fig. 4 and shown in Figure 6.The utility model mainly is made of vertical shaft 1, fine powder outlet 2, charging aperture 3, rotating cage 6, guide vane 7, air inlet 8, secondary air mouth 16, spiral case 9, cone 10, discharge port 13, counterpunch board 17 and a sealing ring 19 etc.The present embodiment difference from Example 2 is: rotating cage 6 mainly is made up of spreading disk 5, vortex filament type blade 11, montant 21, horizontal baffle 15 and support 14 etc.Montant 21 symmetries are installed in the outside of vortex filament type blade 11 and parallel with the outer rim of this blade, and the quantity of this montant is generally even numbers such as 2,4,8,12.Other structure of present embodiment and operation principle are substantially with embodiment 2.
Embodiment 5:
As Fig. 5 and shown in Figure 7.Present embodiment and embodiment 1 and embodiment 3 differences are: rotating cage 6 mainly is made up of spreading disk 5, radial blade 11, narrow blades 20, montant 21, horizontal baffle 15 and bearing support 14 etc.Spreading disk 5 upper edge circumference are provided with radially hollow fin 4, and this hollow fin is to have increased a shaft-like fin on the basis of former radially fin, and its effect is in order further to reduce cut diameter, to improve the effectiveness of classification index.Other structure of present embodiment and operation principle are substantially with embodiment 1 and embodiment 3.
Embodiment 6:
As shown in Figure 6 and Figure 7.Present embodiment and embodiment 2 and embodiment 4 differences are: rotating cage 6 mainly is made up of spreading disk 5, vortex filament type blade 11, montant 21, horizontal baffle 15 and support 14 etc.Spreading disk 5 upper edge circumference are provided with radially hollow fin 4, and this hollow fin is to have increased a shaft-like fin on the basis of former radially fin.Other structure of present embodiment and operation principle are with embodiment 2 and embodiment 4.
Claims (5)
1, a kind of energy-efficient turbo air classifier, it mainly comprises vertical shaft (1), fine powder outlet (2), charging aperture (3), rotating cage (6), guide vane (7), air inlet (8), spiral case (9), cone (10), discharge port (13), counterpunch board (17) and sealing ring (19) etc., rotating cage (6) is by having the radially spreading disk of fin (5), radial blade (11), horizontal baffle (15) and bearing support (14) are formed, it is characterized in that: this spiral case (9) adopts double volute, air intake adopts uiform section symmetry air intake, air inlet (8,16) be located at spiral case (9) both sides respectively; Narrow blades (20) is installed between rotating cage (6) radial blade (11), radial blade (11) and narrow blades (20) separately along circumference radially be installed in spreading disk (5) below, and be fixed on the wall of vertical shaft (1) axle sleeve (12) by several horizontal baffles (15) and bearing support (14).
2, grader according to claim 1, it is characterized in that: rotating cage (6) is mainly formed by having radially the spreading disk of fin (5), vortex filament type blade (11), horizontal baffle (15) and bearing support (14), vortex filament type blade (11) along circumference radially be installed in spreading disk (5) below.
3, grader according to claim 1 and 2 is characterized in that: be arranged with several montants parallel with the rotating cage blade (21) at rotating cage (6) radial blade or vortex filament type blade (11) outside.
4, grader according to claim 3 is characterized in that: can be fixed with hollow drive on the spreading disk (5) to fin (4).
5, grader according to claim 3 is characterized in that: the optimal number of montant (21) is 2～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234784 CN2382483Y (en) | 1999-07-12 | 1999-07-12 | High efficiency energy saving eddy air grading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234784 CN2382483Y (en) | 1999-07-12 | 1999-07-12 | High efficiency energy saving eddy air grading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382483Y true CN2382483Y (en) | 2000-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234784 Expired - Lifetime CN2382483Y (en) | 1999-07-12 | 1999-07-12 | High efficiency energy saving eddy air grading machine |
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| CN (1) | CN2382483Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169138B (en) * | 2006-10-27 | 2010-05-12 | 西北工业大学 | Axial flow compressor stator blade arrangement style |
| CN102225396A (en) * | 2011-04-27 | 2011-10-26 | 北京化工大学 | Narrow-sized level multi-stage vortex air classifier classification system |
| CN101652191B (en) * | 2007-05-08 | 2012-09-26 | 伯利休斯股份有限公司 | Apparatus and method for sifting feedstock |
| CN102962120A (en) * | 2012-12-13 | 2013-03-13 | 吉林省电力有限公司电力科学研究院 | Powder recovery separator of power station boiler |
| CN105195418A (en) * | 2015-11-03 | 2015-12-30 | 北京化工大学 | Vortex air classifier non-radial curved blade rotation cage |
| CN108273637A (en) * | 2018-02-09 | 2018-07-13 | 庞凯 | A kind of gradient fractionation purification system of turbine classifier and silicon dioxide ultrafine powder |
| CN111085436A (en) * | 2019-12-31 | 2020-05-01 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
-
1999
- 1999-07-12 CN CN 99234784 patent/CN2382483Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169138B (en) * | 2006-10-27 | 2010-05-12 | 西北工业大学 | Axial flow compressor stator blade arrangement style |
| CN101652191B (en) * | 2007-05-08 | 2012-09-26 | 伯利休斯股份有限公司 | Apparatus and method for sifting feedstock |
| CN102225396A (en) * | 2011-04-27 | 2011-10-26 | 北京化工大学 | Narrow-sized level multi-stage vortex air classifier classification system |
| CN102225396B (en) * | 2011-04-27 | 2013-05-01 | 北京化工大学 | Narrow-sized level multi-stage vortex air classifier classification system |
| CN102962120A (en) * | 2012-12-13 | 2013-03-13 | 吉林省电力有限公司电力科学研究院 | Powder recovery separator of power station boiler |
| CN105195418A (en) * | 2015-11-03 | 2015-12-30 | 北京化工大学 | Vortex air classifier non-radial curved blade rotation cage |
| CN108273637A (en) * | 2018-02-09 | 2018-07-13 | 庞凯 | A kind of gradient fractionation purification system of turbine classifier and silicon dioxide ultrafine powder |
| CN111085436A (en) * | 2019-12-31 | 2020-05-01 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
| CN111085436B (en) * | 2019-12-31 | 2021-11-19 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |