CN106000547A - Dynamic-static blade combined type separator of medium-speed coal mill - Google Patents
Dynamic-static blade combined type separator of medium-speed coal mill Download PDFInfo
- Publication number
- CN106000547A CN106000547A CN201610512858.5A CN201610512858A CN106000547A CN 106000547 A CN106000547 A CN 106000547A CN 201610512858 A CN201610512858 A CN 201610512858A CN 106000547 A CN106000547 A CN 106000547A
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- medium
- stator blade
- type separator
- coal
- separator
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a dynamic-static blade combined type separator of a medium-speed coal mill. The dynamic-static blade combined type separator comprises a variable-frequency motor which is connected to a turbine worm reducer, wherein the turbine worm reducer is connected to an air seal device; the air seal device is connected to a rotor device through a V-shaped belt; the air seal device is arranged on a central coal dropping tube in a sleeved manner; the central coal dropping tube is connected to a multi-outlet device; the rotor device is connected to a bearing; a temperature measuring device is arranged on the bearing; a discharge valve is arranged on the air seal device by connecting; a lubricating device is arranged on the air seal device; the portion, outside the lower part of the central coal dropping tube, underneath the air seal device is provided with a blade cage; the outer side of the blade cage is provided with static blades; a primary air position is formed below the central coal dropping tube; a primary separating position is formed above the primary air position; the position of the blade cage is provided with a secondary separating position; and the position of the central coal dropping tube is provided with an original coal position. The dynamic-static blade combined type separator is excellent in separating performance, and meets changeable needs of coals and unit peak regulating needs.
Description
Technical field
The invention belongs to firepower power station technical field, be specifically related to a kind of medium-speed pulverizer moving-stator blade
Conjunction type separator.
Background technology
At present, mill separator is the key equipment in firepower power station coal-burning boiler pulverized coal preparation system,
It is to affect fineness of pulverized coal and the topmost equipment of pulverized coal fineness, its runnability fortune to boiler
Row and efficiency of combustion have a great impact, and less fineness of pulverized coal and bigger pulverized coal fineness refer to
Number not only contributes to the raising of boiler combustion efficiency, and advantageously reduces a NOX (oxidation two
Nitrogen) discharge, contribute to system and run steadily in the long term.So, pulverized coal preparation system is as firepower
The aid system that power plant is important, its operation conditions directly affects the safety economy fortune of boiler
OK.Mill separator is as the key equipment in pulverized coal preparation system, and it also exists the most always
Comprehensively separation efficiency is low, go out powder fineness does not reaches requirement, go out powder fineness lack of homogeneity, Hui Fenxi
Spending little, lack of homogeneity, time powder amount are bigger than normal, and (many qualified coal dusts cannot separate because of separation efficiency difference
Out), fineness of pulverized coal can not be along with problems such as coal type change are adjusted.In recent years, some
Maker and scientific research department have developed some novel mill separators, and its performance has changed
Kind, but these separators still use traditional static separation technology, and the regulation of fineness of pulverized coal is still led
Relying on and manually adjust baffle angle and realize, therefore a lot of problems are the most fundamentally solved
Certainly.Such as: several years ago, more domestic institutes on the basis of radial direction baffle plate mill separator,
Merely changing radial direction baffle plate into axial baffle and increase overhead height, other position does not has substantially
Change, although, it is excellent compared with radial mode that this mill separator observes its runnability through actual motion
Get over, but also expose the defect that its own is intrinsic, especially inner cone and still use former radial mode thick
The inner cone of powder separator, causes internal separation efficiency low, and often occurs that gas powder short circuit is existing
As, coarse powder fineness and uniformity are the most not ideal enough, and limit powder process ability.At present,
Thermal generation unit as-fired coal qualitative changeization is frequent, and meanwhile, peak load regulation requires height, unit load
Rate of change is relatively big, and thus corresponding pulverized coal preparation system is exerted oneself and changed the most greatly, traditional static separation
Device can not meet requirement, and pulverizer capacity is not enough, and the problem day higher with fly ash combustible material is aobvious prominent
Go out.For this reason, it may be necessary to a kind of medium-speed pulverizer moving-stator blade conjunction type separator, solve prior art
In the presence of the problems referred to above so that it is there is excellent separating property, meet that ature of coal is changeable and machine
Group peak regulation needs.
Summary of the invention
The present invention provides a kind of medium-speed pulverizer moving-stator blade conjunction type separator, solves prior art
In the presence of comprehensive separation efficiency low, go out powder fineness and do not reach requirement, go out powder fineness uniformity
Difference, time powder fineness are little, and lack of homogeneity, time powder amount are bigger than normal, and many qualified coal dusts are because of separation efficiency
Difference cannot be separated, and fineness of pulverized coal can not be adjusted along with coal type change, automaticity
Low, internal separation efficiency is low, and gas powder short circuit phenomenon often occurs, coarse powder fineness and uniformly
Property is poor, the problem such as powder process limited ability so that it is have excellent separating property, meet coal
Matter is changeable and peak load regulation needs.
For achieving the above object, the present invention provides a kind of medium-speed pulverizer moving-stator blade conjunction type to separate
Device, including frequency conversion motor, frequency conversion motor is connected with turbine and worm decelerator, and turbine and worm subtracts
Speed device is connected with gas sealing mechanism, and gas sealing mechanism is connected with rotor arrangement by V-type band
Connecing, gas sealing mechanism is set on the coal spout of center, and center coal spout is connected with multiple exit device
Connecing, rotor arrangement is connected with bearing, and bearing is provided with temperature measuring equipment, and gas sealing mechanism connects
Being equipped with dump valve, gas sealing mechanism is provided with lubricating arrangement, below gas sealing mechanism, in
The outside of the bottom of heart coal spout is provided with leaf cage, and the outside of leaf cage is provided with stator blade, center coal breakage
The lower section of pipe is provided with First air position, and the first order that is arranged over of First air position separates position
Putting, the position of leaf cage is provided with separation point position, the second level, and the position of center coal spout is provided with former
Coal position.
In above scheme preferably, medium-speed pulverizer moving-stator blade conjunction type separator also includes
Dynamic separator, separator cover device, inner cone device, spring charging device, grinding roller fill
Put, grind bowl and impeller unit, side body set, screeding device, planetary gear reduction box, connection
Axial organ and Differential Pressure Unit etc..
It may also be preferred that screeding device includes the first scraper plate and the second scraper plate.
It may also be preferred that the length of the first scraper plate is less than the length of the second scraper plate.
It may also be preferred that lubricating arrangement is set to lubricating oil station.
It may also be preferred that Burnisher apparatus and mill bowl are arranged on mill.
It may also be preferred that frequency conversion motor is connected with mill by decelerator.
It may also be preferred that center coal spout is arranged on the top of mill center position.
It may also be preferred that dynamic separator be arranged over outlet.
It may also be preferred that screeding device is arranged on the bottom of mill.
Compared with prior art, the invention have the advantages that
The invention provides a kind of medium-speed pulverizer moving-stator blade conjunction type separator, solve existing skill
Comprehensive separation efficiency in the presence of art is low, go out powder fineness does not reaches requirement, to go out powder fineness uniform
Property poor, return powder fineness little, lack of homogeneity, return powder amount bigger than normal, many qualified coal dusts because of separate effect
Rate variance cannot be separated, and fineness of pulverized coal can not be adjusted along with coal type change, automatization's journey
Spending low, internal separation efficiency is low, and gas powder short circuit phenomenon often occurs, coarse powder fineness and all
The problems such as even property is poor, powder process limited ability so that it is have excellent separating property, meet
Ature of coal is changeable and peak load regulation needs.They can be the most for current power plant soot source, pot
Stove fire coal amplitude of variation greatly and frequently problem so that it is constantly can adjust according to the change of ature of coal
Fineness of pulverized coal, makes boiler combustion more complete, more economical, makes boiler operatiopn safer, overcome coal
The problem that the unburned carbon in flue dust that qualitative change causes is ascended to heaven, exhaust gas temperature rises, desuperheating water increases,
Also it is avoided that and burns out burner nozzle and the phenomenon of furnace wall cooling coking, add the suitable of boiler
Should be able to power；It can be for current fired power generating unit peak regulation task weight, and load variations is big, and boiler fires
Burn optimal fineness of pulverized coal with the big problem of load variations so that it is boiler combustion when being able to maintain that underload
Burning optimal fineness of pulverized coal, improve combustion economization, its fineness of pulverized coal is adjustable, and pulverized coal fineness is good,
The requirement of boiler low load stable combustion be can preferably meet, the peak modulation capacity of boiler, coal dust increased
Fineness requirement is the highest, uses dynamic separator effect the most obvious；It separates uniformly, exports coal dust
Evenness index is high, and when i.e. R90 is identical, R200 ratio is relatively low, the most uniform then corase particles of coal dust
Content is few, and its uniformity is greatly improved, and ash content carbon can be decreased obviously.If it is desired that coal dust
It is fully burned in combustor, fineness of pulverized coal should be made the thinnest more good.General fineness of pulverized coal
R90 controls to be according to coal, boiler model in the range of how many, and burner model determines.
Fineness of pulverized coal R90 refers to that the sieve with sieve aperture width is 90 microns screens coal dust, stays
The percentage rate of total coal dust shared by rough coal powder above sieve.Percent is the lowest, illustrates that coal dust is more
Carefully.If general anthracite, fineness of pulverized coal R90 controls about 6%, 15%～20% if bituminous coal
Left and right.Its separation efficiency of the present invention is high, it is possible to increase pulverized coal preparation system EIAJ more than 5%,
Reduce pulverized coal preparation system consumption rate, it is also possible to increase the deposit of exerting oneself of pulverized coal preparation system.Its coal dust is uniform
Property is good, fineness can adjust to very low level, beneficially low-NOx combustor ash content carbon
Significant lower, and the reduction of fuel type NOx, it is possible to effectively promote power plant to install low NOx combustion additional
Burning system, beneficially boiler reduce the emission level of NOx, reduce environmental pollution.It is applied
In unit pulverized-coal system, it is possible to during beneficially coal pulverizer exports coal pipe, coal powder density is uniform
Distribution, reduces boiler flyash carbon content and reduces the generation of NOx.Its control will be according to coal-supplying amount
The calibration curve drawn out during with field adjustable is to determine rotor speed, and converter changes variable-frequency electric
Machine rotating speed, thus change dynamic separator rotating speed, regulative mode simple and flexible, it is possible to become on the spot
Frequently device regulation or access DCS system regulate at central station of floating dock.When ventilation changes, energy
Enough control fineness of pulverized coal not change, owing to decreasing the rate of refacing of qualified coal dust, it is possible to decrease
Powder process power consumption more than 10%, reduces boiler unburned carbon loss and heat loss due to exhaust gas, carries
High boiler thermal output, reduces unburned carbon in flue dust about 0.8%, its remarkable in economical benefits.Its due to
Interior circulating load is less than static separation device, it is possible to improve pulverizer capacity, this is owing to dividing
Improve from efficiency and realize, it is to avoid fine particle (granularity is less than 200 mesh) is unnecessary again
Grinding times, the most qualified coal dust just can discharge coal pulverizer, the most identical ature of coal faster
Can under pulverizer capacity or identical ature of coal and requirement of exerting oneself with improving under fineness requirement
To improve fineness of pulverized coal.Its compact conformation, stable, easy to maintenance.Motor bearings, dynamic
State separator bearing, the lubrication of worm type of reduction gearing bearing, gear reducer lube are changed and skin
The tensioner etc. of band is carried out once for general 1 year.The replacing general three to five of belt, oil sealing and rotor
Year is carried out once.
Accompanying drawing explanation
Fig. 1 is the structural representation of the medium-speed pulverizer moving-stator blade conjunction type separator of the present invention；
Fig. 2 is that the isolating construction of the medium-speed pulverizer moving-stator blade conjunction type separator of the present invention is former
Reason schematic diagram.
In figure, 1 is leaf cage, and 2 is frequency conversion motor, and 3 is turbine and worm decelerator, and 4 is airtight
Seal apparatus, 5 is V-type band, and 6 is rotor arrangement, and 7 is bearing, and 8 is measurement apparatus, and 9 are
Lubricating arrangement, 10 is stator blade, coal spout centered by 11, and 12 is multiple exit device, and 13 are
Dump valve, 14 is First air position, and 15 is first order separation point position, and 16 separate for the second level
Position, 17 is raw coal position.
Detailed description of the invention
In order to be more fully understood that the present invention, below in conjunction with specific embodiment, the present invention is made in detail
Explanation.It is clear that the present invention can be carried out different modification and remodeling and without departing from rear attached power
Profit requires the broader spirit and scope of the present invention limited.Therefore, following example have illustration
Property and do not have conditional implication.
Embodiment:
A kind of medium-speed pulverizer moving-stator blade conjunction type separator, as depicted in figs. 1 and 2, including
Frequency conversion motor 2, frequency conversion motor 2 is connected with turbine and worm decelerator 3, and turbine and worm slows down
Device 3 is connected with gas sealing mechanism 4, and gas sealing mechanism 4 is by V-type band 5 and rotor arrangement
6 are connected, and gas sealing mechanism 4 is set on center coal spout 11, center coal spout 11 with
Multiple exit device 12 is connected, and rotor arrangement 6 is connected with bearing 7, and bearing 7 is provided with
Temperature measuring equipment 8, gas sealing mechanism 4 is connected with dump valve 13, gas sealing mechanism 4 sets
There is lubricating arrangement 9, below gas sealing mechanism 4, the outside of the bottom of center coal spout 11
Being provided with leaf cage 1, the outside of leaf cage 1 is provided with stator blade 10, and the lower section of center coal spout 11 sets
Once wind position 14, is arranged over first order separation point position 15 at First air position 14,
The position of leaf cage 1 is provided with separation point position, the second level 16, and the position of center coal spout 11 sets
There is raw coal position 17.
In the above-described embodiments, medium-speed pulverizer moving-stator blade conjunction type separator also includes dynamically dividing
From device, separator cover device, inner cone device, spring charging device, Burnisher apparatus, mill
Bowl and impeller unit, side body set, screeding device, planetary gear reduction box, shaft coupling and
Differential Pressure Unit etc..
In the above-described embodiments, screeding device includes the first scraper plate and the second scraper plate.
In the above-described embodiments, the length of the first scraper plate is less than the length of the second scraper plate.
In the above-described embodiments, lubricating arrangement 9 is set to lubricating oil station.
In the above-described embodiments, Burnisher apparatus and mill bowl are arranged on mill.
In the above-described embodiments, frequency conversion motor 2 is connected with mill by decelerator.
In the above-described embodiments, center coal spout 11 is arranged on the top of mill center position.
In the above-described embodiments, dynamic separator be arranged over outlet.
In the above-described embodiments, screeding device is arranged on the bottom of mill.
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, it is as a kind of controllable centrifugal
Formula powder concentrator equipment, pressure for 0.35Mpa, major function is less than or equal to 38mm by diameter
Raw coal grind to form about 0.075mm coal dust boiler of feeding burning.Heat primary air is from mill lower part of bowl
Side body air inlet enter, be used for being dried and carry the coal dust in coal pulverizer, filled by rotor
Put 6 drive flow rotations, utilize centrifugation to separate with the coal dust clashing into centrifugation and set
Standby.From coal pulverizer wind powder mixture out through rotor arrangement 6, at the band of rotor arrangement 6
Rotating under Dong, thicker coal dust is separated under centrifugal force and they strike effect
Coming, remaining qualified coal dust is taken out of with air-flow, just can change by adjusting rotor arrangement 6 rotating speed
Become separator outlet fineness of pulverized coal.
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, its frequency conversion motor 2 is by subtracting
Speed device band movable grinding disc rotates, and hot blast enters in vertical mill body from air inlet simultaneously, material pass through into
Material mouth falls in mill central authorities, and under the influence of centrifugal force, material is uniform from mill mediad edge
Mobile, the grinding roller-way region on mill, rolled by grinding roller, bulk materials quilt
Directly crushing, fine forms material bed and carries out intergranular pulverizing after being then squeezed.Thing after pulverizing
Material continues to move to mill edge, until being taken away by the air blast at vane, is taken up by air-flow
In material, larger particles material drops to continue on mill powder under self gravitation effect again
Broken, rest materials then enters moving-stator blade conjunction type separator with air-flow and carries out particle classifying, dynamic
Under the effect of the dynamic and static blade of stator blade conjunction type separator 10, (separator rotor is placed in powder-separating area
Inner side, direction of rotation is consistent with the direction of tangential gas flow, for separator realize select powder function to carry
For crucial centrifugal force, between rotor arrangement 6 and guide vane, also exist one filled by rotor
Put centrifugal force controlled ground ring-shaped area, referred to as powder-separating area produced by 6 rotations, in this interval
The pulverized coal particle of different-grain diameter, because himself quality is different, the centrifugal force varied in size,
Centrifugal force orders about coal dust and leaves this region, moves out；These coal dusts are also by once simultaneously
The centripetal force of pathogenic wind stream is allowed to central motion.Rotating speed and once when separator rotor device 6
The homogeneous timing of pathogenic wind stream, the coal dust under a certain specified particle diameter in being in powder-separating area, because of suffered centrifugal
Power is equal with centripetal force and remains static, and this particle diameter is that the separator under the conditions of this selects powder to divide
Level particle diameter, the coarse granule exceeding Cut size moves out under the influence of centrifugal force, impinges upon
On stator blade and settle under gravity), the material not meeting fineness requirement returns again
On mill, carry out grinding, and the material meeting fineness requirement enters into and through through pipeline with air-flow
Outlet device above separator leaves separator, enters boiler combustion through pulverized coal feed pipe.Main frame
Inside it is mixed into the difficult mill foreign material such as the iron block of material, gangue when moving to mill edge with material, by
Can not be blown up greatly in own wt, fall grinding machine cavity of resorption and be installed in scraping bottom mill
After flitch scrapes slag-drip opening, discharge outside main frame.
Table one, pulverized coal particle distribution relation
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, due to dynamic and static separator
Wheel speed regulation and the two-way regulating function of static deflector baffle angular adjustment, energy can be realized
Coal dust is enough made to separate at Gravity Separation, shock, be folded to inertial separation and centrifugal force pressure separation etc.
Under effect, in mill, circulating ratio declines, and improves fineness of pulverized coal and uniformity index, finally
Reach to improve boiler combustion efficiency, reduce the purpose of unburned carbon in flue dust.
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, its separator dynamic blade by
Frequency conversion motor drives, and this allows for blade rotational speed and can be adjusted in the range of requiring, becomes
Frequently the rotating speed of motor 2 is controlled by DCS setting 4～20mA signals.Dynamic separator is permissible
The requirement of Coal rank is met, when the differential pressure of grinding machine reduces by the rotating speed of regulation separator
Time, thinner product can be obtained, on the contrary when reduction point by improving the rotating speed of separator
Thicker product can be obtained when the rotating speed of device.
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, its frequency conversion motor 2 driven
Parameter: power is 30kW, and voltage is 380V, and frequency is 50Hz, and rated speed is
1470r/min。
Table two, motor speed and separator blade rotational speed relation:
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, it is rational in infrastructure, and it has
The high drive system of reliability is as whole separator critical component, and it uses a pair biserial sphere
Roller bearing 7 and single axial thrust bearing are made power transmission shaft and are supported, and solve very well radially and axle
To load distribution of force, the design of bearing 7 is more than 100000 hours, for guaranteeing mathematic(al) expectation
Bearing 7 longtime running safety, uses the structure of oil sealing+labyrinth seal, and coal pulverizer is in malleation
Run, at the oil sealing of upper and lower, be passed through sealing air, in order to avoid being invaded by coal dust in separator,
Meanwhile, bearing 7 uses grease lubrication, outside to arrange oil filling pipeline, it is simple to intermittent oiling, upper,
Respectively it is used for monitoring bearing temperature with a thermal resistance at lower bearing 7.
The medium-speed pulverizer moving-stator blade conjunction type separator of the present invention, frequency conversion motor 2 and worm gear snail
Bar decelerator 3 is connected together by shaft coupling, frequency conversion motor 2 by converter change frequency from
And change rotating speed, turbine and worm decelerator 3 output shaft is installed drivewheel, passes through belt drive
The driven pulley linked together with rotor arrangement 6, so that the rotor of rotor arrangement 6 rotates,
The direction of rotation of rotor is for being down seen as clockwise above coal pulverizer.Converter and machinery
Speed change is compared, and converter is hardly with safeguarding, reliability is the highest.Rotor uses wear-resisting alloy steel
Making, unitary tapered structure, projected life was more than 35000 hours.
Although below various preferred implementations and feature to the present invention are described,
But on the premise of without departing from the purpose of the present invention and objective, those of ordinary skill in the art are permissible
The present invention makes many change, supplement, change and delete.Concrete above in association with the present invention
The detailed description that embodiment is done, is not limitation of the present invention.Every skill according to the present invention
Art essence, to any simple modification made for any of the above embodiments, all still falls within technical solution of the present invention
Scope.
Claims (10)
1. a medium-speed pulverizer moving-stator blade conjunction type separator, including frequency conversion motor (2),
It is characterized in that: frequency conversion motor (2) is connected with turbine and worm decelerator (3), turbine snail
Bar decelerator (3) is connected with gas sealing mechanism (4), and gas sealing mechanism (4) passes through V
Type band (5) is connected with rotor arrangement (6), and gas sealing mechanism (4) center of being set in falls
On coal pipe (11), center coal spout (11) is connected with multiple exit device (12), rotor
Device (6) is connected with bearing (7), and bearing (7) is provided with temperature measuring equipment (8), gas
Being connected with dump valve (13) on sealing device (4), gas sealing mechanism (4) is provided with profit
Sliding device (9), below gas sealing mechanism (4), the bottom of center coal spout (11)
Outside is provided with leaf cage (1), and the outside of leaf cage (1) is provided with stator blade (10), center coal breakage
The lower section of pipe (11) is provided with First air position (14), the top at First air position (14) place
Being provided with first order separation point position (15), the position of leaf cage (1) is provided with separation position, the second level
Putting (16), the position of center coal spout (11) is provided with raw coal position (17).
2. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 1, its feature
It is: medium-speed pulverizer moving-stator blade conjunction type separator also includes dynamic separator, separator top
Lid arrangement, inner cone device, spring charging device, Burnisher apparatus, mill bowl and impeller unit,
Side body set, screeding device, planetary gear reduction box, shaft coupling and Differential Pressure Unit etc..
3. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 2, its feature
It is: screeding device includes the first scraper plate and the second scraper plate.
4. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 3, its feature
It is: the length of the first scraper plate is less than the length of the second scraper plate.
5. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 4, its feature
It is: lubricating arrangement (9) is set to lubricating oil station.
6. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 5, its feature
It is: Burnisher apparatus and mill bowl are arranged on mill.
7. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 6, its feature
It is: frequency conversion motor (2) is connected with mill by decelerator.
8. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 7, its feature
It is: center coal spout (11) is arranged on the top of mill center position.
9. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 8, its feature
Be: dynamic separator be arranged over outlet.
10. medium-speed pulverizer moving-stator blade conjunction type separator as claimed in claim 9, it is special
Levy and be: screeding device is arranged on the bottom of mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512858.5A CN106000547A (en) | 2016-07-01 | 2016-07-01 | Dynamic-static blade combined type separator of medium-speed coal mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512858.5A CN106000547A (en) | 2016-07-01 | 2016-07-01 | Dynamic-static blade combined type separator of medium-speed coal mill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018149036A1 (en) * | 2017-02-17 | 2018-08-23 | 江苏新业重工股份有限公司 | Vertical classifying pulveriser with laterally slanting feeding |
| CN109395837A (en) * | 2018-09-04 | 2019-03-01 | 北京慧峰仁和科技股份有限公司 | A kind of medium-speed pulverizer mill fluidizer and its application method |
| CN113294800A (en) * | 2021-06-28 | 2021-08-24 | 西安热工研究院有限公司 | System for improving coal pulverizer static separator outlet pulverized coal distribution uniformity |
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| CN109395837A (en) * | 2018-09-04 | 2019-03-01 | 北京慧峰仁和科技股份有限公司 | A kind of medium-speed pulverizer mill fluidizer and its application method |
| CN113294800A (en) * | 2021-06-28 | 2021-08-24 | 西安热工研究院有限公司 | System for improving coal pulverizer static separator outlet pulverized coal distribution uniformity |
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