CN2142758Y - Combined multi-stage high-efficiency air powder-selecting machine - Google Patents
Combined multi-stage high-efficiency air powder-selecting machine Download PDFInfo
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- CN2142758Y CN2142758Y CN 92244422 CN92244422U CN2142758Y CN 2142758 Y CN2142758 Y CN 2142758Y CN 92244422 CN92244422 CN 92244422 CN 92244422 U CN92244422 U CN 92244422U CN 2142758 Y CN2142758 Y CN 2142758Y
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- powder concentrator
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Abstract
The utility model relates to a combined multi-stage high-efficiency air powder-selecting machine. An upper stage room, a middle stage room, and a lower stage room are arranged in the combined multi-stage high-efficiency air powder-selecting machine. A rotation main shaft is shared by the upper stage room and the middle stage room. A cage rotor, a guide blade with adjustable angle, and an impact plate are arranged in the upper stage room. A stock spreading disc which has radial convex square beams and convex edges, and a horizontal radial blade are arranged on the main shaft of the middle stage room. The case of the lower stage room is designed into a spiral casing shape with a tangential air intake, and a guide blade is arranged in the spiral casing. The utility model improves the powder-selecting efficiency by 20 to 30 %, improves the grinding mill production by 20 to 30 %, and lowers the power consumption by 10 to 15 % while the granule distribution is reasonable.
Description
The utility model is a kind of powder equipment that selects, corollary equipment as grinding machine, be used for the granular material mixture of different-grain diameter is carried out classification, can be widely used in industries such as building materials, chemical industry, Inorganic Non-metallic Materials, food processing and pharmacy, especially be suitable as the supporting of raw mill and cement grinding mill in the cement industry, be used for raw material preparation and manufacture of cement.
Prior art can be referring to " the external cement industry overview of the initial stage eighties " of publishing information department of State Bureau of Building Materials Industry in December, 1987 the 96th page to the 102nd page.As everyone knows, the air powder concentrator all is to utilize air stream that the different-grain diameter material in the granular material mixture is separated from each other.Generally speaking, the principal element of decision air gas powder concentrator performance quality is distribution, the time of staying of material in air-flow of gas flowfield.The structure of at present more famous in the world powder concentrator Ao Saipa (O-Sepa) powder concentrator can be sketched and be, on the main shaft of the enclosure interior of powder concentrator, a rotor of being made up of a lot of vanelets, some horizontal baffles and top spreading disk etc. is installed, around the guide vane that is provided with fixed angle in one week of rotor, in the housing upper design two tangent air inlets (wind, secondary wind) are arranged, design has 2～3 air inlets (tertiary air) on the lower housing portion ash bucket.During use, material to be selected is by the spout feeding at powder concentrator top, drop on the spreading disk, evenly scattered among eddy airstream by spreading disk, produce classification under the blade effect, thin material is discharged from outside the powder concentrator with air-flow, remaining material is then in falling to the process of ash bucket, by tertiary air selection by winnowing once more, meal falls into ash bucket, and fine powder rises with air-flow and is discharged from outside the powder concentrator.
Above-mentioned Ao Saipa powder concentrator belongs to one of powder concentrator of the advanced person of the world today, is widely used at present.But to be objective, the Ao Saipa powder concentrator yet comes with some shortcomings: at first, though the Ao Saipa powder concentrator can be counted as twice classification to the classification of granular material, finish for the first time by wind and secondary wind, another time finished by tertiary air, but, there is the low problem of grinding efficiency of tertiary air because tertiary air only depends on gravitational settling that the fine powder that sticks on the meal is carried out sorting; Secondly, the introducing of tertiary air easily makes the stability by wind and the formed horizontal flow field of secondary wind be damaged, make the grinding efficiency of whole powder concentrator descend, for overcoming this point, the air quantity that often limits tertiary air only accounts for below 5% of total blast volume, and the powder ability of selecting of tertiary air is greatly weakened; The 3rd, in the Ao Saipa powder concentrator, adopt twice classification, and be that the very high horizontal flow field of grinding efficiency transits directly to gravitational settling, then for still containing in the material that selected through horizontal flow field under the situation of more fine powder, gravitational settling is difficult to whole fine powders are selected.
The purpose of this utility model is the powder concentrator that a kind of new construction will be provided, this powder concentrator only utilizes a wind just can carry out multiple fractionation to material, and change according to the ratio of material thickness powder in selecting the powder process and rationally to arrange powder concentrator structures at different levels, make this powder concentrator can realize high efficiency and low power consumption, and has compact conformation, process easy for installation, series of advantages such as processing ease.
Powder concentrator of the present utility model is to design according to aerodynamic principle with on the research basis to powder concentrator powder concentrator reason.Studies show that in the mixtures of materials of different-grain diameter, a large amount of fine powders stick on the coarse granule often, a key that improves powder concentrator efficient is that this part fine powder is separated with meal.Generally speaking, after the first order sorting through the Ao Saipa powder concentrator, still have many fine powders with coarse granule together motion, and this moment these fine powders and coarse granule between adhesion weaken greatly, but only utilize the gravitational settling mode still to be difficult to make these fine powders to be separated fully.According to above analysis, the powder concentrator that the utility model is recommended to use adopts three grades of sortings, in same powder concentrator, is provided with three different grading rooms from top to bottom, utilize the same powder gas that selects that material is carried out three classifications, fully sub-elect the fine powder of carrying secretly in the meal.
Primary structure of the present utility model is, in the housing of powder concentrator, is provided with the top grading room, middle part grading room and bottom grading room, and wherein top grading room and middle part grading room have a rotating spindle.Classification indoor main shaft portion in top is provided with spreading disk, the cage rotor that vertical blade and horizontal baffle etc. are formed, the guide vane and the counterpunch board of one circle adjustable-angle are arranged on the rotor outer ring, and the main shaft portion of middle part grading room is provided with the blade with the spreading disk of radial fin and edge protuberance and horizontal radiation shape.The bottom grading room has one to enclose the guide vane that is fixed on the powder concentrator housing, and this a part of powder concentrator housing is designed to vortex crustiform and has tangent air inlet.
Powder concentrator of the present utility model is when work, and material to be selected is disperseed through spreading disk by the feeding mouth feeding that is located at grading room top, top, is thrown to peripheral counterpunch board, falls into the classification space of being made up of guide vane and rotor at last.The classification gas that tangentially enters via the bottom grading room, classification is indoor on top, through guide vane, the rectified action of vertical blade of rotor and horizontal baffle, form an accurate horizontal eddy current, material is subjected to inside centripetal force of level and the outside centrifugal action of level at this, realizes classification for the first time, fine powder is discharged from discharge pipe with air-flow, and remaining material then is imported into the spreading disk of middle part grading room.In the grading room of middle part, material is dished out by spreading disk, enters in the classification air-flow of rising, because the centrifugal intertia force effect that the horizontal blade rotation is produced, material is once more by classification, fine powder rises with air-flow, and remaining material then continues to drop to the bottom grading room, in the grading room of bottom, utilize guide vane to make to enter the air-flow of powder concentrator to produce rotation, swirling eddy carries out centrifugal classification to the material that enters this grading room again, and fine powder rises with air-flow, and meal falls into ash bucket.
The utility model combined type powder concentrator has the following advantages: at first, in powder concentrator, move and by the rule of classification according to material, designed the structure that in single powder concentrator, realizes multistage classification, and classification mechanisms at different levels are not simple repetitions, but according to this grade classification mechanism material characteristic to be processed design, make powder concentrator of the present utility model have the grinding efficiency height, effectiveness of classification is good, fully sub-elects the fine powder in the meal.Secondly,, in cement industry, raw material can be produced, many kinds cement can be produced again because the utility model selects the mealiness energy good.By adjusting the outlet material particle size range of powder concentrator, can not only the production specific area be 3000Cm
2Ordinary cement about/g can also the production specific area be 4000Cm
2/ g, even 6000Cm
2The high-mark cement that/g is above.The 3rd, prove through production practices, powder concentrator of the present utility model is compared with domestic common powder concentrator, can improve grinding efficiency 20～30%, improves mill output 20～30%, reduce power consumption 10～15%, the 4th, through the material that powder concentrator of the present utility model sub-elected, its distribution of particles is more reasonable, for cement industry, can improve the quality of cement.In addition, the utility model also has compact conformation, and installation and maintenance are convenient, series of advantages such as stable and reliable operation, and can be applicable to the ultra-fine sorting of chemical industry, inorganic non-metallic, food, medical processing industry.
Most preferred embodiment of the present utility model can provide in conjunction with the following drawings.
Fig. 1 is a complete machine structure schematic diagram of the present utility model.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is the B-B cut-away view of Fig. 1.
Fig. 4 is the C-C cut-away view of Fig. 1.
At first referring to Fig. 1, powder concentrator of the present utility model is made up of housing (6), vertical shaft (1), ash bucket (12), feeding mouth (2), meal discharging opening (11), air outlet (21) etc.The upper end of vertical shaft (1) is fixed by bearing block and is linked to each other with transmission mechanism (not drawing among the figure), and the lower end utilizes bearing block (13) and makes it fixing with housing (6) by pull bar (14).The top of housing (6) is formed by two taper seat butt joints of abscissusing, joint diameter maximum, and the diameter at two ends is less.Housing (6) space that top comprised is top grading room (22).Utilize vertical shaft (1) to be fixed with first spreading disk (19), deflection cone and supporting plate (17) and a plurality of vertical blade (16) in top grading room (22), these vertical blades (18) constitute squirrel-cage rotor (10) with first spreading disk (19), deflection cone and supporting plate (17).In cage rotor (20) inside, one or more horizontal baffle (4) can also be installed and be separated into the space in the cage rotor (20) two-layer or more multi-layered with steady flow condition.Fig. 2 has provided variable vane (5), vertical blade (18) at main shaft (1) arrangement form all around.In top grading room (22), also utilize housing (6) to be fixed with counterpunch board (3) and variable vane (5) and inner cone (7), wherein on each variable vane pin is housed, pin stretches out outside housing (6) top, externally realizes adjustable.Inner cone (7) is to be fixed on the housing (6) by bearing rib (16).The inside of inner cone (7) is through the thick material channel after top grading room (22) classification, and the space between inner cone (7) and the housing (6) is the passage that air-flow rises.
Middle part of the present utility model grading room (23) is made of the space that housing (6) middle part is comprised.The central structure of housing (6) is that abscissus taper seat butt joint of a face of cylinder and forms, and the small end of the taper seat of abscissusing is downward.Be fixed with second spreading disk (15) at middle part grading room (23) inner utilization vertical shaft (1), utilize second spreading disk (15) to be fixed with the blade (8) that the polylith level is the horizontal radiation shape with radial fin and edge protuberance.Referring to Fig. 3.
Bottom of the present utility model grading room (24) is made of the space that the bottom comprised of housing (6).The bottom of bottom grading room (24) is ash bucket (12), ash bucket (12) be meal discharging opening (11) bottom, top at ash bucket (12) is the spiral case that has tangent air inlet (10), polylith stationary guide blades (9) is installed, referring to Fig. 4 in spiral case inside.The effect of these stationary guide blades (9) is the control air flow direction and the air-flow that enters by tangent air inlet (10) is circumferentially evenly distributed in volute.
Powder concentrator of the present utility model is when work, and vertical shaft (1) is driven by transmission mechanism and rotates, and each parts fixed thereon are rotated thereupon.Material to be selected is shed away through first spreading disk (19) by feeding mouth (2) feeding, strike counterpunch board (3) after, fall into equably between the doughnut between variable vane (5) and the rotor (20).Select powder gas in top locellus (22) by what tangent air inlet (10) entered, under the acting in conjunction of variable vane (5), vertical blade (18), deflection cone and supporting plate (17) and horizontal baffle (4), formed stable horizontal eddy current, material at this by classification, fine powder enters cage rotor (20) inside with gas, through the water conservancy diversion of deflection cone and supporting plate (17), discharge by discharge pipe (21).Meal falls into inner cone (7) along variable vane (5) inboard, fall into again on second spreading disk (15) of middle part grading room (23), second spreading disk (15) is thrown into meal in the ascending air again, grading through horizontal blade (8), the fine powder that will be entrained in the meal is elected once more, fine powder rises with air-flow, enters top grading room (22), and meal falls into bottom grading room (24) along housing (6) inwall of middle part grading room (23).Washed by the swirling eddy after stationary guide blades (9) rectification again by the meal of sorting at bottom grading room (24).Meal is after sorting for the third time, and fine powder wherein is sorted out basically, falls into ash bucket (12) at last, discharges through meal discharging opening (11).
Claims (5)
1, a kind of powder concentrator is made up of housing (6), vertical shaft (1), ash bucket (12), feeding mouth (2), meal discharging opening (11), air outlet (21) etc., and vertical shaft (1) is driven by transmission mechanism and rotates.It is characterized in that, the cage rotor of being formed with first spreading disk (19), vertical blade (18), deflection cone and supporting plate (17) (20) is installed on the top of vertical shaft (1), second spreading disk (15) with radial fin and edge protuberance is installed in the bottom of vertical shaft (1), the blade (8) of horizontal radiation shape is installed on second spreading disk.
2, powder concentrator as claimed in claim 1 is characterized in that the air inlet of powder concentrator is positioned at the bottom of housing (6), this part housing (6) be shaped as a spiral case, stationary guide blades (9) is installed in spiral case inside.
3, powder concentrator as claimed in claim 1 is characterized in that, the horizontal baffle (4) more than is installed in cage rotor (9) inside.
4, powder concentrator as claimed in claim 1 is characterized in that the top of housing (6) is fixed with counterpunch board (3).
5, powder concentrator as claimed in claim 1 is characterized in that, in the inside of housing (6) inner cone (7) is installed also, and inner cone (7) is to be fixed on the housing (6) by bearing rib (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244422 CN2142758Y (en) | 1992-12-23 | 1992-12-23 | Combined multi-stage high-efficiency air powder-selecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244422 CN2142758Y (en) | 1992-12-23 | 1992-12-23 | Combined multi-stage high-efficiency air powder-selecting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142758Y true CN2142758Y (en) | 1993-09-29 |
Family
ID=33783692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92244422 Expired - Fee Related CN2142758Y (en) | 1992-12-23 | 1992-12-23 | Combined multi-stage high-efficiency air powder-selecting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142758Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615046A (en) * | 2012-04-10 | 2012-08-01 | 江苏安必信环保设备有限公司 | Novel powder selecting machine capable of uniformly scattering material |
| CN102658224A (en) * | 2012-05-17 | 2012-09-12 | 辉县市新科机械设备有限公司 | Special mill for silicon metal |
| CN101652191B (en) * | 2007-05-08 | 2012-09-26 | 伯利休斯股份有限公司 | Apparatus and method for sifting feedstock |
| CN104874547A (en) * | 2015-05-04 | 2015-09-02 | 杭龙 | Cement powder concentrator |
| CN104984907A (en) * | 2015-07-10 | 2015-10-21 | 中建材（合肥）粉体科技装备有限公司 | Cage type rotor type air powder concentrator |
| CN105057123A (en) * | 2015-07-27 | 2015-11-18 | 中建材（合肥）粉体科技装备有限公司 | Tower skirt type dry powder material classifier |
| CN110743792A (en) * | 2019-10-25 | 2020-02-04 | 江苏吉能达环境能源科技有限公司 | High dispersion vortex powder concentrator |
-
1992
- 1992-12-23 CN CN 92244422 patent/CN2142758Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101652191B (en) * | 2007-05-08 | 2012-09-26 | 伯利休斯股份有限公司 | Apparatus and method for sifting feedstock |
| CN102615046A (en) * | 2012-04-10 | 2012-08-01 | 江苏安必信环保设备有限公司 | Novel powder selecting machine capable of uniformly scattering material |
| CN102658224A (en) * | 2012-05-17 | 2012-09-12 | 辉县市新科机械设备有限公司 | Special mill for silicon metal |
| CN104874547A (en) * | 2015-05-04 | 2015-09-02 | 杭龙 | Cement powder concentrator |
| CN104984907A (en) * | 2015-07-10 | 2015-10-21 | 中建材（合肥）粉体科技装备有限公司 | Cage type rotor type air powder concentrator |
| CN105057123A (en) * | 2015-07-27 | 2015-11-18 | 中建材（合肥）粉体科技装备有限公司 | Tower skirt type dry powder material classifier |
| CN110743792A (en) * | 2019-10-25 | 2020-02-04 | 江苏吉能达环境能源科技有限公司 | High dispersion vortex powder concentrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |