CN108607809A - A kind of multistage feed powder grading plant and its method - Google Patents
A kind of multistage feed powder grading plant and its method Download PDFInfo
- Publication number
- CN108607809A CN108607809A CN201810541311.7A CN201810541311A CN108607809A CN 108607809 A CN108607809 A CN 108607809A CN 201810541311 A CN201810541311 A CN 201810541311A CN 108607809 A CN108607809 A CN 108607809A
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- Prior art keywords
- feed powder
- babinet
- multistage
- feed
- grading plant
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- 239000000843 powder Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 9
- 239000003337 fertilizer Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001417490 Sillaginidae Species 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of multistage feed powder grading plant and methods, wherein multistage feed powder grading plant includes：Babinet, inlet air plenum and pipeline；Wind turbine is installed in the pipeline；Described pipeline one end is connected to the inlet air plenum, and the other end is connected to the babinet；The inlet air plenum is connected to by multiple nozzles uniformly distributed up and down with the babinet；It is provided with feed hopper at the top of the babinet；And the feed hopper is located at the nozzle side；The bottom of the babinet is disposed with multiple feed powder collecting tanks, and the position of multiple feed powder collecting tanks reduces successively.Feed powder disposably can be divided into multiple granularity level by multistage feed powder grading plant provided by the invention, not only increase the efficiency of separation, additionally it is possible to reduce fertilizer ratio, and eliminate bag-type dust link, single unit system is simpler.
Description
Technical field
The present invention relates to feed powder grading plant technical field, more particularly to a kind of multistage feed powder grading plant and
Its method.
Background technology
In industries such as cement, coal-fired thermal power generation, mine, metal smelts, need to produce or use a large amount of feed powder.Cement
Raw material, clinker, raw coal, ore etc. are milled into powder, by various sorting modes, select the satisfactory material of granularity
Powder, underproof feed powder return to flour mill and mill again.
Currently, being using static state Lei Mengshi separators, cyclone cylinder, dynamic rotary separator etc. to the sorting means of feed powder.
But these methods once can only carry out level-one sorting to material, i.e., be qualified and unqualified two kinds by feed powder sorting.Sorting effect
Rate is relatively low, and a large amount of qualification feed powder returns to flour mill and mills again, be easy to cause and mills seriously.
Therefore, the problem of efficiency of separation height is those skilled in the art's urgent need to resolve how is improved.
Invention content
In view of this, the present invention provides a kind of multistage feed powder grading plant and its method, it can be disposably by feed powder point
For multiple granularity level, the efficiency of separation is not only increased, additionally it is possible to fertilizer ratio is reduced, and eliminates bag-type dust link, it is whole
Body device is simpler.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of multistage feed powder grading plant, including：Babinet, inlet air plenum and pipeline；Wind turbine is installed in the pipeline；It is described
Pipeline one end is connected to the inlet air plenum, and the other end is connected to the babinet；The inlet air plenum passes through multiple sprays uniformly distributed up and down
Mouth is connected to the babinet；
It is provided with feed hopper at the top of the babinet；And the feed hopper is located at the nozzle side；The bottom of the babinet
Portion is disposed with multiple feed powder collecting tanks, and the position of multiple feed powder collecting tanks reduces successively.
Preferably, the feed hopper is connected to by discharge valve with the babinet.
Preferably, further include：The removable separating device being set between the adjacent feed powder collecting tank, it is described removable
Separating device is installed on by the guide groove on the babinet；
The removable separating device includes：Axis pin and two panels demarcation strip；Demarcation strip described in two panels is connected by axis pin, and
The both ends of the pivot pin are installed in the guide groove.
The size of the upper opening of feed powder collecting tank is adjusted using removable separating device is moved horizontally, reaches control and receives
Collect the granularity of feed powder and the amount of feed powder in slot.
Preferably, the babinet includes：Grading room and exhaust air box；It is provided between the grading room and the exhaust air box point
Baffles；
Described pipeline one end is connected to the inlet air plenum, and the other end is connected to the exhaust air box；
The inlet air plenum is connected to by the nozzle with the grading room；The grading room is set close to the side of the nozzle
It is equipped with feed hopper；The grading room bottom is disposed with multiple feed powder collecting tanks.
Preferably, blast fence up and down staggeredly is installed in the exhaust air box, and the blast fence and horizontal plane
Angle is more than 40 °.
Preferably, described pipeline one end is connected to by air inlet with the inlet air plenum, the other end by air outlet with it is described
Exhaust air box is connected to.
Preferably, the lower inclined plane of the inlet air plenum is more than 40 ° with horizontal direction angle.
Preferably, the nozzle is flat strip shaped, and the size phase of the size of the nozzle and the feed inlet of the feed hopper
Matching.
Preferably, discharging valve outlet is flat strip shaped, and the size of size and feed inlet matches.
Preferably, the feed powder collects trench bottom and is equipped with screw conveyor.
A kind of multistage feed powder stage division, including：By the wind turbine in pipeline, the gas in babinet is sucked out, then is blown into
Inlet air plenum, and being blown by the feed powder that nozzle is leaked out into feed hopper, under the action of air-flow, feed powder to be fractionated according to
In the descending feed powder collecting tank fallen into from the near to the distant of grain size.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of multistage feed powders point
Stage arrangement and method, have the following advantages that：
(1) the disposable multipass sort realized to powder, can be arranged multiple material according to the granularity requirements of graded product
Powder collecting tank；
(2) the airflow circulating circuit for foring closure is discharged without lack of gas, is realized to air no pollution；
(3) air velocity is low, and for fertilizer than low, energy-saving effect is apparent；
What needs to be explained here is that other feed powder grading plants also all need other than carrying out feed powder classification using air-flow
Feed powder to be transported in grading plant by pipeline using air-flow, the feed powder by classification also needs to continue with air-flow conveying
To feed bin, in order to reach conveying purpose and prevent feed powder from depositing, so needing higher air velocity.And material provided by the invention
Powder grading plant eliminates the link that feed powder is conveyed using air-flow, classification processing is carried out just with air-flow, so air velocity
Want much lower compared to other modes.In order to ensure that feed powder conveying and not depositing needs in pipeline flow velocity to be not less than 25m/s, in air-flow
Dust content is generally in 300g/m3, so fertilizer ratio is all 3 or more.And gas velocity in feed powder grading plant provided by the invention
Degree only has the half of other grading plants, and fertilizer ratio is 1.5 or so.
(4) bag-type dust link is eliminated, cost of investment and operation maintenance cost reduce；
(5) classification efficiency is high, and qualified powder is returned the probability milled again in flour mill and reduces, to reduce powder processed
The cycle amount of milling of machine.
In conclusion present inventive concept is ingenious, apparatus structure is simple, has broad application prospects.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawings are the structural schematic diagram of multistage feed powder grading plant provided by the invention；
Fig. 2 attached drawings are babinet vertical view provided by the invention；
Fig. 3 attached drawings are the sectional view of babinet provided by the invention and inlet air plenum；
Fig. 4 attached drawings are the schematic diagram one of removable separating device provided by the invention；
Fig. 5 attached drawings are the schematic diagram two of removable separating device provided by the invention；
Fig. 6 attached drawings are the structural schematic diagram of nozzle provided by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of multistage feed powder grading plants, can feed powder be disposably divided into multiple particle size fractions
Not, the efficiency of separation is not only increased, additionally it is possible to reduce fertilizer ratio, and eliminate bag-type dust link, single unit system is simpler
It is single.
Referring to attached drawing 1-5, the invention discloses a kind of multistage powder lot classifying apparatus, including：Babinet 9, feed hopper 1 are located at case
The top of body 9 is connected to by discharge valve 2 with babinet 9.Feed powder to be fractionated 5 in feed hopper 1 is uniformly discharged into babinet 9 by discharge valve 2
It is interior.Air inlet 3 is located at the top of inlet air plenum 4, and inlet air plenum 4 is connected by the multiple nozzles 6 arranged up and down with babinet 9.Outlet air
Mouth 19 is located on the side wall of babinet 9, and air inlet 3 is connected to by pipeline 20 with air outlet 19, and is equipped in pipeline 20
Wind turbine 21.When wind turbine 21 operates, the gas in babinet is sucked out by air outlet 19, then pass through air inlet 3, inlet air plenum successively
4 and nozzle 6 be blown into babinet 9, constitute an airflow circulating.Wherein, inlet air plenum 4 plays the wind being blown into from air inlet 3
The effect pressed ensures that the air-flow 8 entered in babinet 9 by nozzle 6 is stablized and is evenly distributed.Air-flow 8 and the material to be fractionated to fall
Powder 5 meets, and since air-flow is different to the carrying capacity of varigrained feed powder, the distance that the smaller feed powder of granularity is blown is remoter,
Final feed powder 5 to be fractionated is respectively fallen according to the size of granularity in feed powder collecting tank 14 from the near to the distant, is realized disposable more
Grade sorting, improves the efficiency of separation.Feed powder 11 after classification is by 12 transporting box body 9 of screw conveyor.
Wherein, the outlet of discharge valve 3 is flat strip shaped, and size and the size of feed inlet 22 match, and ensures feed powder along length
Direction is uniformly fallen into babinet, specifically in grading room.
In addition, referring to attached drawing 4 and attached drawing 5, removable separating device is provided between two adjacent feed powder collecting tanks
10, due to being provided with guide groove 26 on the madial wall of babinet 9, then the removable separating device device can move in the horizontal direction,
When mobile, demarcation strip 13 is remained to be bonded with 14 side wall of feed powder collecting tank.It can be changed on feed powder collecting tank by the device
The size of portion's opening, and then the feed powder amount fallen into collecting tank is controlled, to achieve the purpose that adjust grading effect.
Referring to attached drawing 1 and attached drawing 3, babinet is divided into grading room 23 and exhaust air box 17 by separation baffles 16, is completed classification and is appointed
After the air-flow of business encounters the obstruction of separation baffles 16, enter exhaust air box 17 down around separation baffles 16, air-flow is in exhaust air box 17
The obstruction for inside encountering blast fence 18 is finally reached air outlet 19.Air-flow forms bending air-flow 15 in the process, repeatedly bends
Purpose be using bending centrifugal action by the dust carried in air-flow be further separated out come, with reduce enter pipeline in
Dust Capacity, eliminates bag-type dust link, and cost of investment and operation maintenance cost reduce.
Multistage feed powder grading plant includes：17 3 inlet air plenum 4, grading room 23 and exhaust air box chambers.Inlet air plenum 4 it is oblique
The angle of more than 7 horizontal plane of face is more than 40 degree, that is, is more than feed powder angle of repose, to prevent feed powder from accumulating.Inlet air plenum 4 and grading room 23 it
Between have a multiple nozzles 6 arranged up and down, nozzle 6 is flat strip shaped, and length and the size of feed inlet 22 match.9 lower part of babinet
Equipped with multiple feed powder collecting tanks 14, the upright position of feed powder collecting tank 14 reduces successively.It is equipped in exhaust air box 17 and interlocks up and down
Blast fence 18, the angle of blast fence 18 and horizontal plane is more than 40 °, to ensure that feed powder will not be deposited on baffle.
Wind turbine 21, from 17 gas bleeding of exhaust air box, is blown into inlet air plenum 4 by pipeline 20, in inlet air plenum 4 after pressure equalization
It is blown into 23 in grading room by nozzle 6, is met with the feed powder to be fractionated 5 of whereabouts, classification processing is carried out to feed powder, air-flow is met later
It to separation baffles 16, bends downward into exhaust air box 17, is repeatedly bent in exhaust air box 17, the dust reduced entrained by air-flow is dense
Degree, then enter in pipeline 20 from air outlet 19, complete the airflow circulating circuit being closed.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of multistage feed powder grading plant, which is characterized in that including：Babinet (9), inlet air plenum (4) and pipeline (20)；The pipe
Wind turbine (21) is installed in road (20)；Described pipeline (20) one end is connected to the inlet air plenum (4), the other end and the babinet
(9) it is connected to；The inlet air plenum (4) is connected to by multiple nozzles (6) uniformly distributed up and down with the babinet (9)；
It is provided with feed hopper (1) at the top of the babinet (9)；And the feed hopper (1) is located at the nozzle (6) side；It is described
The bottom of babinet (9) is disposed with multiple feed powder collecting tanks (14), and the position of multiple feed powder collecting tanks (14) is successively
It reduces.
2. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that the feed hopper (1) is by unloading
Material valve (2) is connected to the babinet (9).
3. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that further include：It is set to adjacent institute
The removable separating device (10) between feed powder collecting tank (14) is stated, the removable separating device (10) passes through the guide groove
(26) it is installed on the babinet (9)；
The removable separating device (10) includes：Axis pin (25) and two panels demarcation strip (13)；Demarcation strip described in two panels (13) is logical
Axis pin (25) connection is crossed, and the both ends of the pivot pin (25) are installed in the guide groove (26).
4. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that the babinet (9) includes：Classification
Room (23) and exhaust air box (17)；Separation baffles (16) are provided between the grading room (23) and the exhaust air box (17)；
Described pipeline (20) one end is connected to the inlet air plenum (4), and the other end is connected to the exhaust air box (17)；
The inlet air plenum (4) is connected to by the nozzle (6) with the grading room (23)；The grading room (23) is close to the spray
The side of mouth (6) is provided with feed hopper (1)；Grading room (23) bottom is disposed with multiple feed powder collecting tanks
(14)。
5. a kind of multistage feed powder grading plant according to claim 4, which is characterized in that installation in the exhaust air box (17)
There is blast fence (18) up and down staggeredly, and the blast fence (18) and the angle of horizontal plane are more than 40 °.
6. a kind of multistage feed powder grading plant according to claim 4, which is characterized in that described pipeline (20) one end passes through
Air inlet (3) is connected to the inlet air plenum (4), and the other end is connected to by air outlet (19) with the exhaust air box (17).
7. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that the inlet air plenum (4) it is oblique
Face (7) is more than 40 ° with horizontal direction angle.
8. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that the nozzle (6) is flat strip shaped,
And the size of the nozzle (6) and the size of the feed inlet (2) of the feed hopper (1) match.
9. a kind of multistage feed powder grading plant according to claim 1, which is characterized in that feed powder collecting tank (14) bottom
Portion is equipped with screw conveyor (12).
10. a kind of multistage feed powder stage division, which is characterized in that be suitable for multistage material described in any one of claim 1-9
Powder grading plant, the multistage feed powder stage division include：By the wind turbine in pipeline, the gas in babinet is sucked out, then blows
Enter inlet air plenum, and blown by the feed powder that nozzle is leaked out into feed hopper, feed powder is freely vertical to fall, and is blown into level
Air-flow meets, and under the action of air-flow, feed powder to be fractionated is according to the descending feed powder collecting tank fallen into from the near to the distant of grain size
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541311.7A CN108607809A (en) | 2018-05-30 | 2018-05-30 | A kind of multistage feed powder grading plant and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541311.7A CN108607809A (en) | 2018-05-30 | 2018-05-30 | A kind of multistage feed powder grading plant and its method |
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| Publication Number | Publication Date |
|---|---|
| CN108607809A true CN108607809A (en) | 2018-10-02 |
Family
ID=63664390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810541311.7A Pending CN108607809A (en) | 2018-05-30 | 2018-05-30 | A kind of multistage feed powder grading plant and its method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108607809A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052404A (en) * | 2019-04-30 | 2019-07-26 | 黑龙江省建三江农垦长湖机械科技有限公司 | High yield type wind separator for grain |
| CN111912750A (en) * | 2019-05-10 | 2020-11-10 | 中冶长天国际工程有限责任公司 | Method and device for detecting granularity composition of sintering mixture |
| CN112076999A (en) * | 2020-08-18 | 2020-12-15 | 四川九洲电器集团有限责任公司 | Dielectric material particle sorting equipment and method for preparing Luneberg lens antenna |
| CN115488036A (en) * | 2022-09-19 | 2022-12-20 | 昆山开信精工机械股份有限公司 | Sedimentation type pill dust separator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110052404A (en) * | 2019-04-30 | 2019-07-26 | 黑龙江省建三江农垦长湖机械科技有限公司 | High yield type wind separator for grain |
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| CN112076999A (en) * | 2020-08-18 | 2020-12-15 | 四川九洲电器集团有限责任公司 | Dielectric material particle sorting equipment and method for preparing Luneberg lens antenna |
| CN112076999B (en) * | 2020-08-18 | 2022-01-25 | 四川九洲电器集团有限责任公司 | Dielectric material particle sorting equipment and method for preparing Luneberg lens antenna |
| CN115488036A (en) * | 2022-09-19 | 2022-12-20 | 昆山开信精工机械股份有限公司 | Sedimentation type pill dust separator |
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