CN202366881U - Air volume adjustable powder concentrator - Google Patents
Air volume adjustable powder concentrator Download PDFInfo
- Publication number
- CN202366881U CN202366881U CN201120549506XU CN201120549506U CN202366881U CN 202366881 U CN202366881 U CN 202366881U CN 201120549506X U CN201120549506X U CN 201120549506XU CN 201120549506 U CN201120549506 U CN 201120549506U CN 202366881 U CN202366881 U CN 202366881U
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- air inlet
- powder concentrating
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Abstract
The utility model discloses an air volume adjustable powder concentrator, which comprises a powder concentrating cavity, wherein an air outlet tube is arranged on the top end of the powder concentrating cavity, a conical dust hopper is arranged on the bottom end of the powder concentrating cavity; a primary air inlet, a secondary air inlet, a triple air inlet and a quartic air inlet where a wind direction blows in the powder concentrating cavity along a tangential direction are sequentially arranged in the powder concentrating cavity along the circumferential direction; more than one feeding hole is arranged in the powder concentrating cavity, and the side wall of the conical dust hopper is provided with a quintic air inlet; and primary air, secondary air, triple air and quartic air enter from the tangential direction of the powder concentrating cavity, and quintic air enters from the conical dust hopper at the lower part, air volume and air speed in the powder concentrating cavity are controlled through adjusting air volume of each air hole, negative pressure in the cavity is kept balance, and powder concentrating efficiency is increased.
Description
Technical field
The utility model relates to a kind of powder concentrator.
Background technology
Powder concentrator has experienced the three generations as the important component part of industrial grinding system since being born.The improvement of first generation centrifugal classifier itself is to improve the distribution situation of material in powder concentrator, improves the dispersiveness in air-flow; Second generation cyclone type powder sorting machine is to reduce the continuation circulation of fine powder with return air, reduces to select powder concentration in the separating chamber; Third generation O-SEPA powder concentrator has not only kept the advantage of cyclone separator outer loop, and the using planar spiral air flow selects the powder principle, selects vermicelli spare from improved at all.Be 350m particularly in the production specific area
2The superperformance that is showed during the above finished cement of/kg is widely used on Chinese new dry process production line in raw mill and the cement grinding mill system.
The operation principle of third generation powder concentrator is: in four the charging aperture feeding powder concentrators of material to be selected by top, fully scatter through spreading disk, buffer board, fall into powder-separating area.Get into through two tangent air inlets, get into powder-separating area through the guide vane level.The cage of in powder concentrator, being made up of vertical vane and horizontal blade makes inside and outside differential pressure keep up and down necessarily at whole powder-separating area height, thereby makes steady air current even during revolution, created good condition for accurately selecting powder.Material from top to bottom, for each particle provides the chance that repeatedly repeats sorting, and each sorting all is under the equilibrium condition of centrifugal force and horizontal wind-force, to carry out.Fine powder has overcome the adverse effect of wall effect from outside to inside.Owing to select powder apart from prolongation, the particle that falls into conical section at last passes through tertiary air selection by winnowing once more again, and grinding efficiency greatly improves.
Although the O-SEPA powder concentrator has advanced operation principle; But during use in hundred tame big-and-middle-sized cement plants in China; Find that generally this powder concentrator and people's expected effect exist very big gap; These gaps structurally also come with some shortcomings from powder concentrator itself on the one hand, on the other hand the improper practical effect that directly has influence on powder concentrator of O-SEPA powder concentrator adjusting in use.
The utility model content
The utility model technical problem to be solved provides a kind of air volume adjustable powder concentrator easy and that degree of regulation is high of regulating.
For solving the problems of the technologies described above; The technical scheme of the utility model is: the air volume adjustable powder concentrator; Comprise and select the powder cavity; The said top of powder cavity of selecting is equipped with discharge pipe, and the said bottom of powder cavity of selecting is equipped with the taper ash bucket, and the said powder cavity that selects is along circumferentially being provided with wind direction successively tangentially is blown into a said air inlet, secondary air mouth, three air inlets and four air inlets that select the powder chamber; The said powder cavity that selects is provided with at least one charging aperture, and the sidewall of said taper ash bucket is provided with air inlet five times.
As a kind of optimized technical scheme, the air intake wind direction of any adjacent air inlet is vertical each other in a said air inlet, secondary air mouth, three air inlets and four air inlets.
As a kind of optimized technical scheme, said charging aperture is four.
As a kind of optimized technical scheme; The said choosing is positioned at said charging aperture below and is provided with and is used to receive the spreading disk that charging aperture gets into material in the powder cavity; Said spreading disk is installed on the cage-type rotor, and said powder cavity interior a said air inlet, secondary air mouth, three air inlets and four air inlet places of selecting all are equipped with adjustable wind blade.
Owing to adopted technique scheme; The air volume adjustable powder concentrator comprises and selects the powder cavity that the said top of powder cavity of selecting is equipped with discharge pipe; The said bottom of powder cavity of selecting is equipped with the taper ash bucket; The said powder cavity that selects is along circumferentially being provided with wind direction successively tangentially is blown into a said air inlet, secondary air mouth, three air inlets and four air inlets that select the powder chamber, and the said powder cavity that selects is provided with at least one charging aperture, and the sidewall of said taper ash bucket is provided with air inlet five times; One time wind, secondary wind, tertiary air and four wind get into from selecting powder cavity tangential, and cone gets into five wind from the bottom, and through adjusting the intake in each air port, air quantity and the wind speed in the powder cavity selected in control, and negative-pressure balancing in the holding chamber improves grinding efficiency.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment;
Among the figure: 101-selects the powder cavity; The 102-spreading disk; The adjustable wind blade of 103-; The 104-cage rotor; The 2-charging aperture; Air inlet of 301-; 302-secondary air mouth; Three air inlets of 303-; Five air inlets of 304-; 401-taper ash bucket; The 402-discharging opening; The 5-discharge pipe.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.In the detailed description below, some example embodiment of the utility model has only been described through the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
Shown in accompanying drawing; The air volume adjustable powder concentrator; Comprise and select powder cavity 101; The said top of powder cavity 101 of selecting is equipped with discharge pipe 5, and the said bottom of powder cavity 101 of selecting is equipped with taper ash bucket 401, and the bottom of said taper ash bucket 401 is provided with discharging opening 402; The said choosing upwards is provided with wind direction powder cavity 101 week successively and tangentially is blown into and saidly selects an interior air inlet 301 of powder cavity 101, secondary air mouth 302, three air inlets 303 and four air inlets (four times air inlet is positioned at the back side of selecting powder cavity 101; Not shown), the sidewall of said taper ash bucket 401 is provided with air inlet 304 five times, and a said air inlet 301, secondary air mouth 302, three air inlets 303 are vertical with the air intake wind direction of adjacent air inlet in four air inlets; The said powder cavity 101 that selects is provided with at least one charging aperture 2, and the number of charging aperture 2 can be set according to the situation such as size of selecting powder cavity 101, can be one, two, three, four or more.The said choosing is positioned at said charging aperture 2 belows and is provided with and is used to receive the spreading disk 102 that charging aperture 2 gets into materials in the powder cavity 101; Said spreading disk 102 is installed on the cage rotor 104, and a said said air inlet 301 in the powder cavity 101, secondary air mouth 302, three air inlets 303 and four air inlet places of selecting all are equipped with adjustable wind blade 103.
The air quantity of existing air volume adjustable powder concentrator is mainly from a wind, secondary wind, and one time wind, secondary wind select powder cavity 101 tangentials to get into from top, and cone gets into five wind from the bottom.In this air volume adjustable powder concentrator, new tertiary air, four wind that add, vertical with wind direction, secondary wind direction respectively cut powder concentrator select powder cavity 101, on average cut with secondary wind with a wind and select 101 one-tenth quarterings of powder cavity.
In process of production, control meal feed back amount and fineness, than table, adjustment grinding efficiency, circulating load, except that leaning on adjustment powder concentrator rotating speed, blower fan valve, main adjusting rationally wind, secondary wind, tertiary air and four wind.Generally speaking, under the constant situation of other condition, close wind one time, mill inner ventilation strengthens, and material flow is accelerated, and mill tail negative pressure absolute value raises.Secondary wind, tertiary air are opened greatly, and negative pressure value descends in the powder concentrator cavity, keeps balance negative pressure and air quantity state everywhere but select to have only in the powder cavity 101, could separate segmentation effectively.Make powder concentrator reach the best and select the powder effect.Transform through this, obtained comparatively desirable adjustment effect, every unit-hour output improves about 20%
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. air volume adjustable powder concentrator; Comprise and select the powder cavity; The said top of powder cavity of selecting is equipped with discharge pipe, and the said bottom of powder cavity of selecting is equipped with the taper ash bucket, it is characterized in that: the said powder cavity that selects is along circumferentially being provided with the wind direction tangential successively is blown into a said air inlet, secondary air mouth, three air inlets and four air inlets that select the powder chamber; The said powder cavity that selects is provided with at least one charging aperture, and the sidewall of said taper ash bucket is provided with air inlet five times.
2. air volume adjustable powder concentrator as claimed in claim 1 is characterized in that: the air intake wind direction of any adjacent air inlet is vertical each other in a said air inlet, secondary air mouth, three air inlets and four air inlets.
3. air volume adjustable powder concentrator as claimed in claim 1 is characterized in that: said charging aperture is four.
4. like claim 1,2 or 3 described air volume adjustable powder concentrators; It is characterized in that: the said choosing is positioned at said charging aperture below and is provided with and is used to receive the spreading disk that charging aperture gets into material in the powder cavity; Said spreading disk is installed on the cage-type rotor, and said powder cavity interior a said air inlet, secondary air mouth, three air inlets and four air inlet places of selecting all are equipped with adjustable wind blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120549506XU CN202366881U (en) | 2011-12-26 | 2011-12-26 | Air volume adjustable powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120549506XU CN202366881U (en) | 2011-12-26 | 2011-12-26 | Air volume adjustable powder concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202366881U true CN202366881U (en) | 2012-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120549506XU Expired - Fee Related CN202366881U (en) | 2011-12-26 | 2011-12-26 | Air volume adjustable powder concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202366881U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944238A (en) * | 2017-04-13 | 2017-07-14 | 江门市中建科技开发有限公司 | A kind of inlet duct of powder selector |
| CN111085436A (en) * | 2019-12-31 | 2020-05-01 | 河北科技大学 | Air flow sealing powder concentrator with pre-grading function |
| CN115254609A (en) * | 2022-08-02 | 2022-11-01 | 盐城市吉盛达环保工程有限公司 | Intelligent ultra-large double-air-port powder concentrator |
-
2011
- 2011-12-26 CN CN201120549506XU patent/CN202366881U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944238A (en) * | 2017-04-13 | 2017-07-14 | 江门市中建科技开发有限公司 | A kind of inlet duct of powder selector |
| 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 |
| CN115254609A (en) * | 2022-08-02 | 2022-11-01 | 盐城市吉盛达环保工程有限公司 | Intelligent ultra-large double-air-port powder concentrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |