CN102580925A - Novel classifying wheel - Google Patents
Novel classifying wheel Download PDFInfo
- Publication number
- CN102580925A CN102580925A CN2012100569969A CN201210056996A CN102580925A CN 102580925 A CN102580925 A CN 102580925A CN 2012100569969 A CN2012100569969 A CN 2012100569969A CN 201210056996 A CN201210056996 A CN 201210056996A CN 102580925 A CN102580925 A CN 102580925A
- Authority
- CN
- China
- Prior art keywords
- blade
- novel
- turntable
- grading wheel
- classifying wheel
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a novel classifying wheel, in particular to a classifying wheel of a novel crusher. The technical scheme is that the novel classifying wheel comprises a turntable, circular ring bodies and a plurality of blades. The novel classifying wheel is characterized in that the periphery of the turntable is equidistantly provided with a plurality of chutes which form included angles with the axis of the turntable, and the included angles of the chutes and the axis of the turntable are 31-45 degrees; one end of each blade is inserted into each chute; one side of each blade body close to the axis of the turntable is at least provided with two notches, one notch is close to one chute, and the other notch is close to one end of the blade body far away from the turntable; and the circular ring bodies are respectively plugged in the relative notches of the blade bodies in parallel through the outer edges of the circular ring bodies. The novel classifying wheel increases the classifying efficiency, ensures the classifying precision, and improves the stability of airflows in material separation. The novel classifying wheel is suitable for powder processing enterprises.
Description
Technical field
The present invention relates to a kind of novel grading wheel, especially a kind of built-in grading wheel of novel pulverizer.
Background technology
Grading wheel blade and radial angle that present flour mill generally uses are too little, have Cut size big (Cut size is meant the largest particles diameter that can pass through grader), are easy to generate thicker powder granule; If require to produce than fine powder body particle, the rotating speed of grader then requires to improve, thereby causes yield in unit time low, shortcomings such as ton product energy consumption height.
It like the patent No. of announcing in Chinese patent information centre 200820126194 utility model--the built-in grading wheel of micronizer; This grading wheel comprises rotating disk, blade and torus; It is characterized in that: said rotating disk periphery equidistance has several become angle with this disk axes skewed slot; Said blade one end is inserted in this skewed slot, and skewed slot and said disk axes angle are 5-30 °.There are the defective that Cut size is big, grader requirement rotating speed is higher, energy consumption is high in this grading wheel blade and radial angle (being that the axle center angle is too little).
Grading wheel generally comprises forward flange dish, rear stub, a plurality of blade, gas sealing disk composition, and blade and forward flange dish, rear stub are fixedly connected respectively, have cannelure on the gas sealing disk, and the rearward end of blade is inserted in the cannelure.Have the charging seam between the adjacent vanes, the inboard of a plurality of blades forms cavity.The rearward end of blade has the blade afterbody that radially becomes big; The rotational line speed of blade afterbody is higher than the rotational line speed of the blade-section of its front side; The air-flow that the rotation of event blade afterbody forms can be blocked in the blade afterbody outside with powder, makes the material powder to get in the discharge nozzle through blade rotation selection and from the charging seam.
Summary of the invention
The objective of the invention is to provide a kind of novel pulverizer grading wheel, to solve existing pulverizer grading wheel blade and radial angle is too little and Cut size that cause is big, energy consumption is high problem.
Its technical scheme is: a kind of novel pulverizer grading wheel, comprise rotating disk, torus and several blades, and it is characterized in that: rotating disk periphery equidistance has a lot of the skewed slots that become angle with this disk axes, and skewed slot and said disk axes angle are 31-45 °; Blade one end is inserted in this skewed slot; The blade lamellar body has 2 notches at least near a side of disk axes, 1 contiguous skewed slot of notch, and 1 notch is near the end of this blade lamellar body away from rotating disk in addition; Torus is respectively by the relative notch parallel grafting of its outward flange with said blade lamellar body.
The invention has the beneficial effects as follows:
1, this grading wheel is compared with ordinary straight line style or the less grading wheel of angle, and when the product of the same order number of classification, its rotating speed of grading wheel that gradient is bigger can reduce a lot, has improved classification efficiency, and has guaranteed effectiveness of classification;
2, improved the stability of material air-flow in separation, product fineness well and can the production fineness thinner product, the product fineness adjustable range is wider, production efficiency doubles than ordinary straight line style or the less grading wheel of angle at least.
Description of drawings:
Fig. 1 is the structural representation of novel grading wheel, among the figure 1, rotating disk, and 2, blade, 3, skewed slot, 4, the garden ring body
The specific embodiment
As shown in Figure 1, a kind of novel pulverizer grading wheel comprises rotating disk 1, blade 2, skewed slot 3, garden ring body 4; Wherein, the peripheral equidistance of rotating disk 1 has several skewed slots 3 that becomes angle with this disk axes, and its angle is 31-45 °; Blade 2 is provided with several corresponding to skewed slot 3, and an end of each blade 2 is inserted in this skewed slot 3; Torus 4 is respectively by the relative notch parallel grafting of its outward flange with said blade lamellar body 3.
B2 pulverizer unit (a micro mist production line) with our company is an example, and we are replaced by blade becomes 31 ° of-45 ° of angles with disk axes grading wheel to the original grading wheel of B2 pulverizer.Change novel grading wheel front and back effect comparison:
Before the replacing:
Change the back:
Can find out that from above data on same equipment, after the grading wheel blade transformed, the grader rotating speed reduced 370-420 and changes, just can make product fineness (D97, D50) maintenance constant basically.And because the reduction of grader rotating speed, it is about 40% that output has been improved, and a ton product power consumption has reduced by 30%, and economic benefit is considerable.In addition, produced rotating speed that thinner product also need not be so high, thereby improved the service life of equipment.
Operation principle of the present invention is:
When the novel grading wheel of the present invention is worked; Actuating unit drives the grader main axis rotation, and the grading wheel that is contained on the grader main shaft rotates synchronously, and the grading wheel of rotation has formed huge eddy flow at a high speed; Meanwhile; The negative pressure that blower fan forms is again with grader on the eddy flow band, so the powder granule of carrying secretly in the eddy flow is before getting into grader, receives the effect of gravitation of centrifugal force and the blower fan of eddy flow simultaneously.
The centrifugal force of particle determines by two factors, the one, and the rotating speed of grader, rotating speed are high more, and centrifugal force is big more; Rotating speed is low more, and centrifugal force is more little; The 2nd, the diameter of particle, particle diameter is big more, and centrifugal force is big more; Particle diameter is more little, and centrifugal force is more little.When the centrifugal force of particle during greater than the gravitation of air-flow, such as thicker particle, just be thrown toward the inner core of grader, fall down main frame and continue to grind; When the centrifugal force of particle during less than the gravitation of air-flow, such as thinner particle, just carried secretly the arrival grading wheel by air-flow, arrive grading wheel after owing to receive bigger action of centrifugal force, big slightly particle still can leave grader; When the centrifugal force of particle equated with the gravitation of air-flow, particle just was in static relatively state in the grader blade, and this particle diameter is called Cut size; And thinner particle forms product because gravitation has passed through grading wheel greater than centrifugal force.Therefore, just can adjust the size of centrifugal force in the grader, reach the purpose of the product of producing designated size through the rotating speed of variable frequency adjustment grading wheel.
In addition, the powder granule that gets into or be about to get into grading wheel also can receive the direct collision cutting of grading wheel blade, and we are the approximate rigid body of regarding as of particle; Collision is for elastic collision, and the particle that is collided is perpendicular to impingement area, so for the less blade of angle radially; The grading wheel blade is and centrifugal force and air-flow gravitation near normal after particle is collided, still just between blade, to move to the impact force that particle produces; Can not throw away grader, so little to the Cut size influence.And if after increasing to the 31-45 degree to graded blade and radially angle; After particle is collided; An outward-dipping bigger angle, this angle and blade are close with angle radially, like this through repeatedly collision; Just can make to be in particle discharge grader big slightly in the grading wheel, fall main frame and grind again.Therefore use novel grader just can under the constant situation of air quantity and grader rotating speed, reduce Cut size, perhaps can reduce the grader rotating speed and Cut size is constant.But blade and angle radially again can not be too big, otherwise can increase gas-flow resistance, and output is reduced.Analyze according to us, with radially angle 31-45 degree is more reasonable.According to our thinking, grading wheel is improved, grading wheel after the improvement is through on probation, and effect is very good, when the identical fineness product of ordinary production, can reduce the grader rotating speed greatly, and the fineness fluctuation also obviously reduces.
Claims (1)
1. a novel grading wheel comprises rotating disk, torus and several blades, it is characterized in that: rotating disk periphery equidistance has a lot of the skewed slots that become angle with this disk axes, and skewed slot and said disk axes angle are 31-45 °; Blade one end is inserted in this skewed slot; The blade lamellar body has 2 notches at least near a side of disk axes, 1 contiguous skewed slot of notch, and 1 notch is near the end of this blade lamellar body away from rotating disk in addition; Torus is respectively by the relative notch parallel grafting of its outward flange with said blade lamellar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100569969A CN102580925A (en) | 2012-03-07 | 2012-03-07 | Novel classifying wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100569969A CN102580925A (en) | 2012-03-07 | 2012-03-07 | Novel classifying wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102580925A true CN102580925A (en) | 2012-07-18 |
Family
ID=46470472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100569969A Pending CN102580925A (en) | 2012-03-07 | 2012-03-07 | Novel classifying wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102580925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480577A (en) * | 2013-09-30 | 2014-01-01 | 阳承君 | Impeller of grader |
| CN104353613A (en) * | 2014-11-04 | 2015-02-18 | 杭州能云科技有限公司 | Laminar flow device for powder selecting machine |
| CN112902648A (en) * | 2021-01-27 | 2021-06-04 | 解秀峰 | Grading drying device of low-rank coal with high moisture and wide particle size |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1454444A (en) * | 1973-03-30 | 1976-11-03 | Dessau Zementanlagenbau Veb | Dispersing device for separators |
| DE10261448A1 (en) * | 2002-12-31 | 2004-07-29 | Nied, Roland, Dr.-Ing. | Vaned rotor for particulate mill wind guide has vanes extending radially with different angles to tangents at leading and trailing edges |
| CN201076857Y (en) * | 2007-09-01 | 2008-06-25 | 江苏科行环境工程技术有限公司 | Clathrate rotor of ultra-fine powder selector |
| CN100425356C (en) * | 2005-03-02 | 2008-10-15 | 吴耀明 | Stepped wheel of airflow pulverization |
| CN201216998Y (en) * | 2008-06-23 | 2009-04-08 | 龙岩市亿丰粉碎机械有限公司 | Classification wheel built in ultrafine pulverizer |
| CN201510998U (en) * | 2009-09-14 | 2010-06-23 | 合肥水泥研究设计院 | Tertiary air intake device for powder selecting machine |
| CN202479139U (en) * | 2012-03-07 | 2012-10-10 | 广西贺州市科隆粉体有限公司 | Novel classification wheel |
-
2012
- 2012-03-07 CN CN2012100569969A patent/CN102580925A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1454444A (en) * | 1973-03-30 | 1976-11-03 | Dessau Zementanlagenbau Veb | Dispersing device for separators |
| DE10261448A1 (en) * | 2002-12-31 | 2004-07-29 | Nied, Roland, Dr.-Ing. | Vaned rotor for particulate mill wind guide has vanes extending radially with different angles to tangents at leading and trailing edges |
| CN100425356C (en) * | 2005-03-02 | 2008-10-15 | 吴耀明 | Stepped wheel of airflow pulverization |
| CN201076857Y (en) * | 2007-09-01 | 2008-06-25 | 江苏科行环境工程技术有限公司 | Clathrate rotor of ultra-fine powder selector |
| CN201216998Y (en) * | 2008-06-23 | 2009-04-08 | 龙岩市亿丰粉碎机械有限公司 | Classification wheel built in ultrafine pulverizer |
| CN201510998U (en) * | 2009-09-14 | 2010-06-23 | 合肥水泥研究设计院 | Tertiary air intake device for powder selecting machine |
| CN202479139U (en) * | 2012-03-07 | 2012-10-10 | 广西贺州市科隆粉体有限公司 | Novel classification wheel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480577A (en) * | 2013-09-30 | 2014-01-01 | 阳承君 | Impeller of grader |
| CN104353613A (en) * | 2014-11-04 | 2015-02-18 | 杭州能云科技有限公司 | Laminar flow device for powder selecting machine |
| CN112902648A (en) * | 2021-01-27 | 2021-06-04 | 解秀峰 | Grading drying device of low-rank coal with high moisture and wide particle size |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105536957B (en) | A kind of impeller and connected superfine pulverizer, System of Ultra Thin Power Rubbing | |
| CN100484635C (en) | Micronizing impact grinder and the powder processing system thereof | |
| CN104941769B (en) | A kind of solid material Ginding process and solid material grinder | |
| CN108883437A (en) | Sorting machine | |
| CN204816676U (en) | Flour mill | |
| CN102580925A (en) | Novel classifying wheel | |
| CN202479139U (en) | Novel classification wheel | |
| CN202162054U (en) | High-effect whirlpool mill | |
| CN108906272A (en) | A kind of three cutterhead mechanical shock high speed of servo-drive is to grinding machine | |
| CN103191813A (en) | Improved jet mill for fluidized bed | |
| CN204699764U (en) | A kind of vertical type no-screen declines pulverizer | |
| CN204503270U (en) | A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill | |
| CN209934854U (en) | Turbulent flow strong impact mill | |
| CN203227552U (en) | High-efficiency eddy current grading ultrafine grinder | |
| CN104304916A (en) | Production line for wheat aleurone layer content starch flour | |
| CN203437172U (en) | Fluidized bed jet mill | |
| CN202010658U (en) | Ultrafine turbine grading machine | |
| CN204396118U (en) | The disc type airslide disintegrating mill of built-in classifying turbine | |
| CN209968625U (en) | Powder concentrator with novel airflow channel structure | |
| CN104258958A (en) | Multi-stage cyclonic vortex grinding machine | |
| CN211275001U (en) | Medium speed coal mill coarse powder separator adopting axial separation device | |
| CN208146153U (en) | A kind of flywheel and centrifugal bump pulverizer for centrifugal bump pulverizer | |
| CN208213364U (en) | A kind of centrifugal bump pulverizer | |
| CN201871407U (en) | Air flow crushing-grading mill | |
| CN203264825U (en) | Improved fluidized bed pneumatic pulverizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |