CN110152873A - A kind of coal dust classifier front end sundry separating device and coal pulverizer - Google Patents
A kind of coal dust classifier front end sundry separating device and coal pulverizer Download PDFInfo
- Publication number
- CN110152873A CN110152873A CN201910492438.9A CN201910492438A CN110152873A CN 110152873 A CN110152873 A CN 110152873A CN 201910492438 A CN201910492438 A CN 201910492438A CN 110152873 A CN110152873 A CN 110152873A
- Authority
- CN
- China
- Prior art keywords
- connection tube
- intermediate connection
- screen device
- coal dust
- sundries
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 37
- 239000002817 coal dust Substances 0.000 title claims abstract description 29
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract 2
- 230000000740 bleeding effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000005086 pumping Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010884 boiler slag Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
-
- 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
- B07B11/08—Cleaning arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention provides a kind of coal dust classifier front end sundry separating device and coal pulverizer, which is mounted on the intermediate connection tube that coal pulverizer is exported between separator inlet；It include: refuse collecting case and screen device；The refuse collecting case is arranged on the outside of the intermediate connection tube, and plate to be opened/closed is equipped between the refuse collecting case and the intermediate connection tube；The screen device is equipped with sieve pore, and the screen device is horizontally set inside the intermediate connection tube, for filtering the sundries that coal dust is swept along in the intermediate connection tube；One end of the screen device is rotatably connected on the inner wall of the intermediate connection tube on the plate top.The device may be implemented in do not interrupt wind powder mixture conveying in the case where, can by from the coal dust that coal pulverizer comes out the sundries swept along first filter out, avoid sundries to the adverse effect of separator, guarantee the normal function of separator, guarantee coal pulverizer continuous and steady operation.
Description
Technical field
The present invention relates to the milling system optimized fields of coal-fired power plant, and in particular to a kind of coal dust classifier front end sundries point
From device and coal pulverizer.
Background technique
Coal-fired power plant is deteriorated due to coal quality at present, and more sundries, such as weeds, strap, rubber, iron are contained in raw coal
The sundries such as silk, woven bag, these sundries are when by separator, shown referring to Fig.1, current coal pulverizer operation schematic diagram,
Back powder pipe 10 is installed, can see in the inside of inner cone 4 there are many sundries, the sundries 8 referred to as blocked inside inner cone.Easily
It is wrapped on baffle blades, baffle orifice is caused to block, or the inner cone sticked in separator causes inner cone to block, and makes separator
It obtains separating effect to be gradually deteriorated, eventually leads to separator failure.Then cause following problems:
1) cause wind speed in separator outlet and tube cell, air quantity uneven, one time wind-warm syndrome is relatively low, and fineness of pulverized coal is partially thick, coal dust
Uniformity is poor, increases flying dust, boiler slag carbon content.
2) power output of coal pulverizer is reduced, the case where influencing load often occurs, auxiliary power consumption and coal pulverizer steel is caused to consume
Increase.
3) bulky grain coal dust is easily deposited on the horizontal pipe section or bend part of primary air piping, causes a tube cell blocking.
4) in order to guarantee stable combustion condition and reduction flying dust, clinker etc., it need to periodically stop coal pulverizer, carry out manual cleaning
Separator sundries, since the caused service personnel of internal structure enters separator interior work, personal safety is on the hazard, simultaneously
Increase the operating quantity of operations staff.
5) due to the limitation and requirement of load, coal quality and the method for operation, when separator for coal mill is cleared up not in time, separation
A possibility that accumulated powder is excessive in device, increases coal dust explosion, influences unit safety operation.
6) wind-warm syndrome of coal pulverizer continues relatively low, and the coal dust firing in furnace is not thorough, and Coal-fired capacity is caused to increase, and influences unit
Economical operation.
It can be seen that influence of the sundries to coal pulverizer is very big, urgent need is effectively resolved.
Summary of the invention
The purpose of the present invention is be easy to have an adverse effect to separator, coal pulverizer there are sundries in present miscellaneous coal
Problem provides a kind of coal dust classifier front end sundry separating device, is mounted on coal pulverizer and is exported between separator inlet, can incite somebody to action
The sundries swept along from the coal dust that coal pulverizer comes out first filters out, and avoids sundries to the adverse effect of separator, guarantees separator
Normal function, guarantee coal pulverizer continuous and steady operation.
To achieve the above object, first aspect the technical solution adopted by the present invention is that: a kind of coal dust classifier front end sundries
Separator is mounted on the intermediate connection tube that coal pulverizer is exported between separator inlet；The separator includes: that sundries is received
Header and screen device；
The refuse collecting case is arranged on the outside of the intermediate connection tube, and the refuse collecting case and the intermediate connection
Plate to be opened/closed is equipped between pipe；
The screen device is equipped with sieve pore, and the screen device is horizontally set inside the intermediate connection tube, is used for
Filter the sundries that coal dust is swept along in the intermediate connection tube；
One end of the screen device is rotatably connected on the inner wall of the intermediate connection tube on the plate top.
Further, one end of the screen device is equipped with hinge axis hole, and the hinge axis hole is rotatably connected on institute by hinged shaft
It states on the inner wall of intermediate connection tube.
Further, the inner wall of the intermediate connection tube is equipped with limited block, and the other end of the screen device is connected to
On the limited block.
Further, the separator further include: controller and the electric operator being connect with the controller；
The electric operator and the hinged shaft are drivingly connected, and drive the screen device to rotate by hinged shaft.
Further, the plate is pneumatic plate；The separator further include: it is being connect with the pneumatic plate and
Two driving portions；The controller is connect with described two driving portions；
The driving portion includes: cylinder, jettron and piston rod；
Two cylinders are separately positioned on the two sides of the pneumatic plate；
The controller and jettron control connect；The jettron and the cylinder pass through conduit air-tightness
Connection；There is cylinder chamber in the cylinder；Described piston rod one end is slidably connected in the cylinder chamber；The piston rod is another
The end at end is connected on the pneumatic plate.
Further, the end of the piston rod other end is connected on the pneumatic plate by pin shaft.
Further, the separator further include: the first pressure measuring unit and second being connect respectively with the controller
Pressure measuring unit；
The upside of the screen device is arranged in first pressure measuring unit；
The downside of the screen device is arranged in second pressure measuring unit.
Further, the refuse collecting case is equipped with bleeding point, and the bleeding point is connect with aspiration pump；
The aspiration pump is connect with the controller.
Second aspect, present aspect also provide a kind of coal pulverizer, including a kind of coal dust as described in any of the above-described embodiment
Separator front end sundry separating device.
The invention has the advantages that: first with screen device, by the first mistake of the sundries swept along from the coal dust that coal pulverizer comes out
Filter, when sundries is overstock it is excessive when, can be by opening plate, rotary screen device make overstocked sundries fall into refuse collecting case,
Complete the removing to sundries.It can will be flowed through in intermediate connection tube wind powder mixture under the premise of guaranteeing not generate leakage of pulverized coal
Sundries separate.Sundries be can effectively avoid to the adverse effect of separator, guarantee the normal function of separator, guarantee coal-grinding
Machine continuous and steady operation.
Detailed description of the invention
Fig. 1 is that separator sundries blocks schematic diagram in the prior art.
Fig. 2 is that intermediate connection tube provided in an embodiment of the present invention cuts open schematic diagram.
Fig. 3 is normal work schematic diagram provided in an embodiment of the present invention.
Fig. 4 is removing sundries schematic diagram provided in an embodiment of the present invention.
Fig. 5 is screen device schematic diagram provided in an embodiment of the present invention.
Fig. 6 is intermediate connection tube schematic diagram provided in an embodiment of the present invention.
Fig. 7 is pneumatic plate schematic diagram provided in an embodiment of the present invention.
Appended drawing reference involved in attached drawing and component part are as follows:
The outlet of 1- coal pulverizer；2- intermediate connection tube；3- wind powder mixture；4- inner cone；5- hangs over miscellaneous on blade
Object；6- separator outlet；7- stator blade；The sundries blocked inside 8- inner cone；9- separator inlet；10- back powder pipe；
The first pressure measuring unit of 11-；12- hinged shaft；13- screen device discharge position；14- bleeding point；15- refuse collecting case；16-
Plate；17- screen device；The second pressure measuring unit of 18-；19- sundries；20- hinge axis hole；21- sieve pore；The electronic execution of 22-
Mechanism；The pneumatic plate of 23-；24- cylinder；25- pin shaft；26- controller.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Shown in referring to Fig.1, current coal pulverizer operation schematic diagram is equipped with back powder pipe 10, can in the inside of inner cone 4
To see there are many sundries, the sundries 8 referred to as blocked inside inner cone.Wind powder mixture 3 enters centre from coal pulverizer outlet 1
In connecting tube 2, then separator inlet 9 is finally discharged from separator outlet 6 through stator blade 7.It wherein, also can be by stator blade 7
The sundries 5 hung on blade is influenced, and efficiency is caused to reduce, and is increased load, is influenced unit safety operation.
Therefore, coal dust classifier front end provided by the invention sundry separating device is mounted on mill referring to shown in attached drawing 2-4
On coal machine outlet 1 to the intermediate connection tube 2 between separator inlet 9；The separator includes: refuse collecting case 15 and sieve dress
Set 17；
Wherein, the setting of refuse collecting case 15 is in the outside of intermediate connection tube 2, and refuse collecting case 15 and intermediate connection tube 2 it
Between be equipped with plate 16 to be opened/closed；
Referring to Figure 5, screen device 17 is equipped with sieve pore 21, allows wind powder mixture to pass through, while obstructing sundries.
Screen device 17 is horizontally set inside intermediate connection tube 2, for filter coal dust in intermediate connection tube 2 sweep along it is miscellaneous
Object；One end of screen device 17 is rotatably connected on the inner wall of the intermediate connection tube 2 on 16 top of plate.Coal dust by hot wind carry from
After coal pulverizer outlet 1 comes out, enter separator by intermediate connection tube 2.In intermediate connection tube 2, the flow velocity of wind powder mixture
About 20~30m/s, pressure is higher than external environment about 3000pa in intermediate connection tube 2.In the present embodiment, which can be
Under the premise of guarantee does not generate leakage of pulverized coal, the sundries flowed through in intermediate connection tube wind powder mixture is separated；It can avoid
Sundries guarantees the normal function of separator to the adverse effect of separator, guarantees coal pulverizer continuous and steady operation.
In specific embodiment, for example refuse collecting case is rectangular structure, and intermediate connection tube is cylindrical body；Sundries is received
Header is attached on intermediate connection tube；In one embodiment, it is in similar round that screen device 17 is whole, is had always in circular edge
The arm of angle；The right-angle side is equipped with hinge axis hole 20, which is rotatably connected on the inner wall of intermediate connection tube 2 by hinged shaft 12.
It is normal operating conditions referring to shown in Fig. 3, such as when sundries is attached to excessive on screen device 17.Referring to Fig. 4
It is shown, plate can be opened, communicates refuse collecting case 17 with intermediate connection tube 2；At this point, by screen device 17 to refuse collecting case
15 opening rotation when reaching the screen device discharge position 13 in such as Fig. 2, under the effect of gravity, can make the sundries of attachment
It falls off, falls into refuse collecting case 15, to realize that sundries separates；After sundries falls completely within refuse collecting case 15, closes and insert
Plate 16, rotary screen device 17 reset, as shown in Figure 3.
Further, for screen device 17 in laterally setting, when sundries is more, the resistance of generation is larger, is easy to cause
Screen device 17 is shifted or is damaged, and therefore, limited block (not shown), sieve can be equipped on the inner wall of intermediate connection tube
The other end of device 17 can be connected on limited block.
Further, in order to realize intelligent and automation, the separator further include: controller 26 and with controller 26
The electric operator 22 of connection；Referring to shown in Fig. 6, intermediate connection tube 2, sundries separator box 15, electric operator are illustrated
22 position installation relation.
The electric operator 22 and hinged shaft 12 are drivingly connected, and are driven screen device 22 to rotate by hinged shaft 12, are worked as sundries
When more or when reaching preset duration, electric operator 22 can be controlled by controller 26 and acted, realize driving sieve
Device 17 rotates, and completes sundries separation.
Further, above-mentioned plate 16 may be set to be automatic opening；It for example is pneumatic plate 23；Referring to Fig. 6-7 institute
Show, which further includes two driving portions；Two driving portions and pneumatic 23 two sides of plate are drivingly connected；Controller 26 and two
A driving portion connection；Wherein, which includes: cylinder 24, jettron and piston rod；Controller 26 and jettron control
Connection；Jettron is connect with cylinder 24 by conduit air-tightness；There is cylinder chamber in cylinder 24；Piston rod one end is slidably connected
In cylinder chamber, the end of the other end is connected on pneumatic plate 23.
It referring to Fig. 7, is made of 23, two cylinders 24 of a pneumatic plate and two pin shafts 25, cylinder 24 passes through pin shaft 25
It is mounted on pneumatic plate 23.Cylinder 24 is fixed on refuse collecting case 15, by cylinder piston rod it is flexible, realize pneumatic
The opening and closing of plate 23.
Further, separator further include: the first pressure measuring unit 11 and second connecting respectively with controller 26 is surveyed
Pressure device 18；The upside of screen device 17 is arranged in first pressure measuring unit 11；Second pressure measuring unit 18 is arranged in screen device
17 downside.The pressure difference obtained by two pressure measuring units, compared with the threshold pressure differential of controller storage, when greater than threshold pressure differential
When, then it opens and understands foreign material groove, for example drive pneumatic plate to open as shown in figure 4, controlling driving portion, while controlling electronic execution
Mechanism 22 drives screen device 17 to rotate clockwise 90 degree around hinged shaft 12 by hinged shaft 12, and sundries is fallen into refuse collecting case 15.
Wherein, which is such as pressure sensor, pressure transmitter or pressure-measuring pipe；Pressure sensor and pressure become
Sending device is to utilize the certain physical characteristics of object, by different conversion elements by tested pressure conversion at various electric quantity signals, and
Pressure is measured indirectly according to the variation of these signals；Controller can obtain pressure parameter.
In addition, pressure sensor and pressure transmitter can be selected resistance-type, condenser type, answer according to the difference of conversion element
The forms such as variant, inductance type, piezoelectric type, Hall plate.
Further, referring to shown in Fig. 6, bleeding point 14, the bleeding point 14 and pumping can be set on refuse collecting case 15
Pump (not shown) connection；Controller 26 and aspiration pump control connect.When screen device 17 rotates clockwise 90 around hinged shaft 12
Degree is evacuated when being detached from sundries by aspiration pump, can express delivery sundries fallen off from screen device 17, improve operating efficiency.
Technical solution of the present invention is illustrated below by a complete embodiment.
Referring to fig. 2, refuse collecting case 15 is installed on intermediate connection tube 2, screen device 17 is mounted on miscellaneous by hinged shaft 12
On object collecting box, pressure-measuring pipe is installed on the upside of screen device, lower pressure-measuring pipe, electric operator 22 and hinged shaft 12 are installed in downside
Connection drives screen device 17 to rotate by hinged shaft 12.
When normal operating conditions, referring to Fig. 3, pneumatic plate 23 is in close state, and screen device 17 is in a horizontal position,
When wind powder mixture 3 passes through, sundries 19 is stopped and is pasted by screen device 17 and hangs on screen device 17, while sundries 19 causes to sieve
The resistance of net device 17 increases.The pressure difference that 17 two sides of screen device are detected by upper and lower pressure difference pipe, when pressure difference is greater than the set value,
It opens and removes sundries operation,
Referring to fig. 4, plate 23 pneumatic first is opened, and electric operator 22 drives screen device 17 by hinged shaft 12 later
90 degree are rotated clockwise around hinged shaft, meanwhile, bleeding point 14 starts to be evacuated, and air-flow flows to left side on the right side of screen device 17, hangs over
Sundries on screen device 17 is blown down by air-flow, is fallen into refuse collecting case 15.After pumping, screen device 17 is counterclockwise
90 degree of resets are chosen to install, while pneumatic plate 23 also resets.In addition, can periodically clear up the sundries in refuse collecting case.
Controller 26 receives the pressure signal that pressure difference pipe measures, by comparative analysis, when the pressure difference of upper and lower pressure difference pipe is super
When crossing setting value, controller 26 is successively to driving portion (driving pneumatic plate), electric operator (driving hinged shaft) and aspiration pump
(being evacuated by bleeding point) issues instruction, first turns on pneumatic plate, rotates clockwise 90 degree of screen device later, be then turned on pumping
Port starts to remove the sundries shone on net device.After the completion of cleaning, controller 26 issues instruction again, realizes and stops pumping, sieve
Net device resets, and pneumatic plate also resets.
The device may be implemented in do not interrupt wind powder mixture conveying in the case where, sundries therein is separated, guarantee
Coal pulverizer continuous and steady operation.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (9)
1. a kind of coal dust classifier front end sundry separating device, which is characterized in that be mounted on coal pulverizer outlet (1) to separator and enter
On intermediate connection tube (2) between mouth (9)；The separator includes: refuse collecting case (15) and screen device (17)；
The refuse collecting case (15) setting on the outside of the intermediate connection tube (2), and the refuse collecting case (15) with it is described
Plate to be opened/closed (16) are equipped between intermediate connection tube (2)；
The screen device (17) is equipped with sieve pore, and the screen device (17) is horizontally set in the intermediate connection tube (2)
Portion, for filtering the sundries that coal dust is swept along in the intermediate connection tube (2)；
One end of the screen device (17) is rotatably connected on the inner wall of the intermediate connection tube (2) on the plate (16) top
On.
2. a kind of coal dust classifier front end sundry separating device according to claim 1, which is characterized in that the sieve dress
The one end for setting (17) is equipped with hinge axis hole (20), and the hinge axis hole (20) is rotatably connected on the intermediate connection tube by hinged shaft (12)
(2) on inner wall.
3. a kind of coal dust classifier front end sundry separating device according to claim 2, which is characterized in that the centre connects
The inner wall for taking over (2) is equipped with limited block, and the other end of the screen device (17) is connected on the limited block.
4. a kind of coal dust classifier front end sundry separating device according to claim 2, which is characterized in that the separation dress
It sets further include: controller (26) and the electric operator being connect with the controller (26)；
The electric operator and the hinged shaft (12) are drivingly connected, and drive the screen device (17) to turn by hinged shaft (12)
It is dynamic.
5. a kind of coal dust classifier front end sundry separating device according to claim 4, which is characterized in that the plate
(16) it is pneumatic plate (23)；The separator further include: connect with the pneumatic plate (23) and two driving portions；Institute
Controller (26) is stated to connect with described two driving portions；
The driving portion includes: cylinder (24), jettron and piston rod；
Two cylinders (24) are separately positioned on the two sides of the pneumatic plate；
The controller (26) and jettron control connect；The jettron and the cylinder (24) pass through conduit gas
Close property connection；There is cylinder chamber in the cylinder (24)；Described piston rod one end is slidably connected in the cylinder chamber；The work
The end of the stopper rod other end is connected on the pneumatic plate (23).
6. a kind of coal dust classifier front end sundry separating device according to claim 4, which is characterized in that the piston rod
The end of the other end is connected on the pneumatic plate (23) by pin shaft.
7. a kind of coal dust classifier front end sundry separating device according to claim 4 or 5, which is characterized in that described point
From device further include: the first pressure measuring unit (11) and the second pressure measuring unit (18) being connect respectively with the controller (26)；
Upside of first pressure measuring unit (11) setting in the screen device (17)；
Downside of second pressure measuring unit (18) setting in the screen device (17).
8. a kind of coal dust classifier front end sundry separating device according to claim 7, which is characterized in that the sundries is received
Header (15) is equipped with bleeding point (14), and the bleeding point (14) connect with aspiration pump；
The aspiration pump is connect with the controller (26).
9. a kind of coal pulverizer, which is characterized in that miscellaneous including a kind of described in any item coal dust classifier front ends such as claim 1-8
Object separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492438.9A CN110152873B (en) | 2019-06-06 | 2019-06-06 | Front-end sundry separating device of pulverized coal separator and coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492438.9A CN110152873B (en) | 2019-06-06 | 2019-06-06 | Front-end sundry separating device of pulverized coal separator and coal mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110152873A true CN110152873A (en) | 2019-08-23 |
| CN110152873B CN110152873B (en) | 2024-05-24 |
Family
ID=67628093
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910492438.9A Active CN110152873B (en) | 2019-06-06 | 2019-06-06 | Front-end sundry separating device of pulverized coal separator and coal mill |
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|---|---|---|---|---|
| GB1349000A (en) * | 1970-07-08 | 1974-03-27 | Condux Werk | Method of and apparatus for separating material |
| CN2803537Y (en) * | 2005-05-24 | 2006-08-09 | 周志强 | Self-damping storage wood brick separator |
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| CN110152873B (en) | 2024-05-24 |
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